docs/master: discussion.roff annotate

annotate discussion.roff @ 183:4c5055a0e981

Explained `hidden switches'.

author	markus schnalke <meillo@marmaro.de>
date	Wed, 11 Jul 2012 10:13:54 +0200
parents	764738b17b74
children	5360f5fdb118

rev	line source
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	1 .H0 "Discussion
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	2 .P
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	3 This main chapter discusses the practical work accomplished in the
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	4 mmh project.
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	5 It is structured along the goals set for the project.
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	6 The concrete work undertaken
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	7 is described in the examples of how the general goals were achieved.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	8 The discussion compares the current version of mmh with the state of
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	9 nmh just before the mmh project started, i.e. fall 2011.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	10 Current changes of nmh will be mentioned only as side notes.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	11 .\" XXX where do I discuss the parallel development of nmh?
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	12
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	13
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	14
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	15 .\" --------------------------------------------------------------
125 0e102cec0c73 s/stream-line/streamline/; s/motorbike/motorcycle/ markus schnalke <meillo@marmaro.de> parents: 124 diff changeset	16 .H1 "Streamlining
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	17
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	18 .P
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	19 MH once provided anything necessary for email handling.
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	20 The community around nmh has the similar understanding that nmh should
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	21 provide a complete email system.
178 520b3c7abba1 s/a MUA/an MUA/ markus schnalke <meillo@marmaro.de> parents: 177 diff changeset	22 In fundamental contrast, mmh shall be an MUA only.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	23 I believe that the development of all-in-one mail systems is obsolete.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	24 Today, email is too complex to be fully covered by a single project.
4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	25 Such a project will not be able to excel in all aspects.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	26 Instead, the aspects of email should be covered by multiple projects,
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	27 which then can be combined to form a complete system.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	28 Excellent implementations for the various aspects of email already exist.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	29 Just to name three examples: Postfix is a specialized MTA,
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	30 .\" XXX homepages verlinken
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	31 Procmail is a specialized MDA, and Fetchmail is a specialized MRA.
89 83bfb4dbf59f Spellchecked. markus schnalke <meillo@marmaro.de> parents: 88 diff changeset	32 I believe that it is best to use such specialized tools instead of
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	33 providing the same function again as a side-component in the project.
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	34 .\" XXX mail agent picture here
0 dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	35 .P
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	36 Doing something well requires focusing on a small set of specific aspects.
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	37 Under the assumption that development focussed on a particular area
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	38 produces better results there, specialized projects will be superior
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	39 in their field of focus.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	40 Hence, all-in-one mail system projects \(en no matter if monolithic
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	41 or modular \(en will never be the best choice in any of the fields.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	42 Even in providing the best consistent all-in-one system, they are likely
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	43 to be beaten by projects that focus only on integrating existing mail
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	44 components to create a homogeneous system.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	45 .P
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	46 The limiting resource in the community development of free software
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	47 is usually man power.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	48 .\" XXX FIXME ref!
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	49 If the development power is spread over a large development area,
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	50 it becomes even more difficult to compete with the specialists in the
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	51 various fields.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	52 The concrete situation for MH-based mail systems is even tougher,
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	53 given their small and aged community, concerning both developers and users.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	54 .P
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	55 In consequence, I believe that the available development resources
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	56 should focus on the point where MH is most unique.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	57 This is clearly the user interface \(en the MUA.
125 0e102cec0c73 s/stream-line/streamline/; s/motorbike/motorcycle/ markus schnalke <meillo@marmaro.de> parents: 124 diff changeset	58 Peripheral parts should be removed to streamline mmh for the MUA task.
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	59
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	60
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	61 .H2 "Mail Transfer Facilities
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	62 .Id mail-transfer-facilities
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	63 .P
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	64 In contrast to nmh, which also provides mail submission and mail retrieval
178 520b3c7abba1 s/a MUA/an MUA/ markus schnalke <meillo@marmaro.de> parents: 177 diff changeset	65 agents, mmh is an MUA only.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	66 This general difference initiated the development of mmh.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	67 The removal of the mail transfer facilities was the first work task
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	68 in the mmh project.
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	69 .P
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	70 Focusing on one mail agent role only, is motivated by Eric Allman's
105 9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	71 experience with Sendmail.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	72 He identified the limitation of Sendmail to the MTA task as one reason for
105 9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	73 its success:
9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	74 .[ [
9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	75 costales sendmail
9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	76 .], p. xviii]
9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	77 .QS
9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	78 Second, I limited myself to the routing function \(en
110 4c0f13b1e0e8 Spellchecked. markus schnalke <meillo@marmaro.de> parents: 109 diff changeset	79 I wouldn't write user agents or delivery back-ends.
105 9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	80 This was a departure of the dominant through of the time,
9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	81 in which routing logic, local delivery, and often the network code
9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	82 were incorporated directly into the user agents.
9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	83 .QE
9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	84 .P
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	85 In nmh, the Mail Submission Agent (MSA) is called
105 9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	86 \fIMessage Transfer Service\fP (MTS).
9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	87 This facility, implemented by the
9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	88 .Pn post
9ff356d84c57 Added reference to Allman to the text; added missing reference to ML. markus schnalke <meillo@marmaro.de> parents: 104 diff changeset	89 command, established network connections and spoke SMTP to submit
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	90 messages to be relayed to the outside world.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	91 The changes in email demanded changes in this part of nmh as well.
89 83bfb4dbf59f Spellchecked. markus schnalke <meillo@marmaro.de> parents: 88 diff changeset	92 Encryption and authentication for network connections
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	93 needed to be supported, hence TLS and SASL were introduced into nmh.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	94 This added complexity to nmh without improving it in its core functions.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	95 Also, keeping up with recent developments in the field of
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	96 mail transfer requires development power and specialists.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	97 In mmh, this whole facility was simply cut off.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	98 .Ci f6aa95b724fd8c791164abe7ee5468bf5c34f226
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	99 .Ci fecd5d34f65597a4dfa16aeabea7d74b191532c3
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	100 .Ci 156d35f6425bea4c1ed3c4c79783dc613379c65b
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	101 Instead, mmh depends on an external MSA.
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	102 The only outgoing interface available to mmh is the
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	103 .Pn sendmail
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	104 command, which almost any MSA provides.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	105 If not, a wrapper program can be written.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	106 It must read the message from the standard input, extract the
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	107 recipient addresses from the message header, and hand the message
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	108 over to the MSA.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	109 For example, a wrapper script for qmail would be:
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	110 .VS
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	111 #!/bin/sh
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	112 exec qmail-inject # ignore command line arguments
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	113 VE
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	114 The requirement to parse the recipient addresses out of the message header
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	115 is likely to be removed in the future.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	116 Then mmh would pass the recipient addresses as command line arguments.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	117 This appears to be the better interface.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	118 .\" XXX implement it
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	119 .P
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	120 To retrieve mail, the
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	121 .Pn inc
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	122 command acted as an Mail Retrieval Agent (MRA).
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	123 It established network connections
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	124 and spoke POP3 to retrieve mail from remote servers.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	125 As with mail submission, the network connections required encryption and
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	126 authentication, thus TLS and SASL were added.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	127 Support for message retrieval through IMAP will soon become necessary
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	128 additions, too, and likewise for any other changes in mail transfer.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	129 Not so for mmh because it has dropped the support for retrieving mail
6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	130 from remote locations.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	131 .Ci ab7b48411962d26439f92f35ed084d3d6275459c
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	132 Instead, it depends on an external tool to cover this task.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	133 Mmh has two paths for messages to enter mmh's mail storage:
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	134 (1) Mail can be incorporated with
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	135 .Pn inc
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	136 from the system maildrop, or (2) with
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	137 .Pn rcvstore
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	138 by reading them, one at a time, from the standard input.
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	139 .P
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	140 With the removal of the MSA and MRA, mmh converted from an all-in-one
178 520b3c7abba1 s/a MUA/an MUA/ markus schnalke <meillo@marmaro.de> parents: 177 diff changeset	141 mail system to being an MUA only.
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	142 Now, of course, mmh depends on third-party software.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	143 An external MSA is required to transfer mail to the outside world;
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	144 an external MRA is required to retrieve mail from remote machines.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	145 Excellent implementations of such software exist,
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	146 which likely are superior than the internal version.
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	147 Additionally, the best suiting programs can be freely chosen.
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	148 .P
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	149 As it had already been possible to use an external MSA or MRA,
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	150 why not keep the internal version for convenience?
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	151 .\" XXX ueberleitung
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	152 The question whether there is sense in having a fall-back pager in all
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	153 the command line tools, for the cases when
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	154 .Pn more
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	155 or
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	156 .Pn less
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	157 are not available, appears to be ridiculous.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	158 Of course, MSAs and MRAs are more complex than text pagers
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	159 and not necessarily available but still the concept of orthogonal
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	160 design holds: ``Write programs that do one thing and do it well.''
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	161 .[
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	162 mcilroy unix phil
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	163 p. 53
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	164 .]
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	165 .[
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	166 mcilroy bstj foreword
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	167 .]
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	168 Here, this part of the Unix philosophy was applied not only
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	169 to the programs but to the project itself.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	170 In other words:
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	171 Develop projects that focus on one thing and do it well.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	172 Projects which have grown complex should be split, for the same
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	173 reasons that programs which have grown complex should be split.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	174 If it is conceptionally more elegant to have the MSA and MRA as
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	175 separate projects then they should be separated.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	176 In my opinion, this is the case here.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	177 The RFCs propose this separation by clearly distinguishing the different
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	178 mail handling tasks.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	179 .[
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	180 rfc 821
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	181 .]
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	182 The small interfaces between the mail agents support the separation.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	183 .P
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	184 Email once had been small and simple.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	185 At that time,
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	186 .Pn /bin/mail
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	187 had covered everything there was to email and still was small and simple.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	188 Later, the essential complexity of email increased.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	189 (Essential complexity is the complexity defined by the problem itself.\0
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	190 .[[
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	191 brooks no silver bullet
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	192 .]])
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	193 Email systems reacted to this change: they grew.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	194 RFCs started to introduce the concept of mail agents to separate the
6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	195 various tasks because they became more extensive and new tasks appeared.
6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	196 As the mail systems grew even more, parts were split off.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	197 For instance, a POP server was included in the original MH;
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	198 it was removed in nmh.
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	199 Now is the time to go one step further and split off the MSA and MRA, too.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	200 Not only does this decrease the code size of the project,
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	201 more importantly, it unburdens mmh of the whole field of
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	202 message transfer with all its implications for the project.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	203 There is no more need for concern with changes in network transfer.
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	204 This independence is gained by depending on an external program
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	205 that covers the field.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	206 Today, this is a reasonable exchange.
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	207 .P
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	208 .\" XXX ueberleitung ???
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	209 Functionality can be added in three different ways:
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	210 .LI 1
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	211 Implementing the function in the project itself.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	212 .LI 2
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	213 Depending on a library that provides the function.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	214 .LI 3
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	215 Depending on a program that provides the function.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	216 .LP
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	217 .\" XXX Rework sentence
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	218 While implementing the function in the project itself leads to the
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	219 largest increase in code size and requires the most maintenance
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	220 and development work,
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	221 it increases the project's independence of other software the most.
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	222 Using libraries or external programs requires less maintenance work
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	223 but introduces dependencies on external software.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	224 Programs have the smallest interfaces and provide the best separation,
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	225 but possibly limit the information exchange.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	226 External libraries are more strongly connected than external programs,
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	227 thus information can be exchanged in a more flexible manner.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	228 Adding code to a project increases maintenance work.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	229 .\" XXX ref
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	230 Implementing complex functions in the project itself adds
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	231 a lot of code.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	232 This should be avoided if possible.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	233 Hence, the dependencies only change in their character,
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	234 not in their existence.
66 4c9f4d05d90e Rework and extension of text from yesterday. markus schnalke <meillo@marmaro.de> parents: 63 diff changeset	235 In mmh, library dependencies on
4c9f4d05d90e Rework and extension of text from yesterday. markus schnalke <meillo@marmaro.de> parents: 63 diff changeset	236 .Pn libsasl2
4c9f4d05d90e Rework and extension of text from yesterday. markus schnalke <meillo@marmaro.de> parents: 63 diff changeset	237 and
4c9f4d05d90e Rework and extension of text from yesterday. markus schnalke <meillo@marmaro.de> parents: 63 diff changeset	238 .Pn libcrypto /\c
4c9f4d05d90e Rework and extension of text from yesterday. markus schnalke <meillo@marmaro.de> parents: 63 diff changeset	239 .Pn libssl
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	240 were traded against program dependencies on an MSA and an MRA.
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	241 This also meant trading build-time dependencies against run-time
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	242 dependencies.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	243 Besides providing stronger separation and greater flexibility,
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	244 program dependencies also allowed
66 4c9f4d05d90e Rework and extension of text from yesterday. markus schnalke <meillo@marmaro.de> parents: 63 diff changeset	245 over 6\\|000 lines of code to be removed from mmh.
4c9f4d05d90e Rework and extension of text from yesterday. markus schnalke <meillo@marmaro.de> parents: 63 diff changeset	246 This made mmh's code base about 12\\|% smaller.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	247 Reducing the project's code size by such an amount without actually
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	248 losing functionality is a convincing argument.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	249 Actually, as external MSAs and MRAs are likely superior to the
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	250 project's internal versions, the common user even gains functionality.
66 4c9f4d05d90e Rework and extension of text from yesterday. markus schnalke <meillo@marmaro.de> parents: 63 diff changeset	251 .P
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	252 Users of MH should not have problems setting up an external MSA and MRA.
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	253 Also, the popular MSAs and MRAs have large communities and a lot
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	254 of available documentation.
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	255 Choices for MSAs range from full-featured MTAs such as
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	256 .\" XXX refs
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	257 .I Postfix ,
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	258 over mid-size MTAs such as
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	259 .I masqmail
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	260 and
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	261 .I dma ,
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	262 to small forwarders such as
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	263 .I ssmtp
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	264 and
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	265 .I nullmailer .
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	266 Choices for MRAs include
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	267 .I fetchmail ,
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	268 .I getmail ,
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	269 .I mpop
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	270 and
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	271 .I fdm .
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	272
6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	273
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	274 .H2 "Non-MUA Tools
60 6a92e0208de0 Wrote about the removal of the mail transfer facilities. markus schnalke <meillo@marmaro.de> parents: 58 diff changeset	275 .P
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	276 One goal of mmh is to remove the tools that are not part of the MUA's task.
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	277 Furthermore, any tools that do not significantly improve the MUA's job
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	278 should be removed.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	279 Loosely related and rarely used tools distract from the lean appearance.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	280 They require maintenance work without adding much to the core task.
125 0e102cec0c73 s/stream-line/streamline/; s/motorbike/motorcycle/ markus schnalke <meillo@marmaro.de> parents: 124 diff changeset	281 By removing these tools, the project shall become more streamlined
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	282 and focused.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	283 In mmh, the following tools are not available anymore:
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	284 .BU
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	285 .Pn conflict
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	286 was removed
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	287 .Ci 8b235097cbd11d728c07b966cf131aa7133ce5a9
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	288 because it is a mail system maintenance tool that is not MUA-related.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	289 It even checked
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	290 .Fn /etc/passwd
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	291 and
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	292 .Fn /etc/group
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	293 for consistency, which is completely unrelated to email.
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	294 A tool like
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	295 .Pn conflict
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	296 is surely useful, but it should not be shipped with mmh.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	297 .\" XXX historic reasons?
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	298 .BU
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	299 .Pn rcvtty
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	300 was removed
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	301 .Ci 14767c94b3827be7c867196467ed7aea5f6f49b0
89 83bfb4dbf59f Spellchecked. markus schnalke <meillo@marmaro.de> parents: 88 diff changeset	302 because its use case of writing to the user's terminal
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	303 on receival of mail is obsolete.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	304 If users like to be informed of new mail, the shell's
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	305 .Ev MAILPATH
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	306 variable or graphical notifications are technically more appealing.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	307 Writing directly to terminals is hardly ever desired today.
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	308 If, though, one prefers this approach, the standard tool
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	309 .Pn write
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	310 can be used in a way similar to:
82 ff4537327162 Mayor rework: Replaced .DS with .VS, a better verbatim environment. markus schnalke <meillo@marmaro.de> parents: 78 diff changeset	311 .VS
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	312 scan -file - \| write `id -un`
82 ff4537327162 Mayor rework: Replaced .DS with .VS, a better verbatim environment. markus schnalke <meillo@marmaro.de> parents: 78 diff changeset	313 VE
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	314 .BU
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	315 .Pn viamail
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	316 .\" XXX was macht viamail
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	317 was removed
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	318 .Ci eda72d6a7a7c20ff123043fb7f19c509ea01f932
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	319 when the new attachment system was activated, because
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	320 .Pn forw
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	321 could then cover the task itself.
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	322 The program
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	323 .Pn sendfiles
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	324 was rewritten as a shell script wrapper around
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	325 .Pn forw .
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	326 .Ci 0e82199cf3c991a173e0ac8aa776efdb3ded61e6
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	327 .BU
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	328 .Pn msgchk
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	329 .\" XXX was macht msgchk
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	330 was removed
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	331 .Ci bb9360ead7eb7a3fedcce2eeedfc660014e41dbe ,
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	332 because it lost its use case when POP support was removed.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	333 A call to
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	334 .Pn msgchk
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	335 provided hardly more information than:
82 ff4537327162 Mayor rework: Replaced .DS with .VS, a better verbatim environment. markus schnalke <meillo@marmaro.de> parents: 78 diff changeset	336 .VS
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	337 ls -l /var/mail/meillo
82 ff4537327162 Mayor rework: Replaced .DS with .VS, a better verbatim environment. markus schnalke <meillo@marmaro.de> parents: 78 diff changeset	338 VE
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	339 It did distinguish between old and new mail, but
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	340 these details can be retrieved with
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	341 .Pn stat (1),
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	342 too.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	343 A small shell script could be written to print the information
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	344 in a similar way, if truly necessary.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	345 As mmh's
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	346 .Pn inc
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	347 only incorporates mail from the user's local maildrop,
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	348 and thus no data transfers over slow networks are involved,
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	349 there is hardly any need to check for new mail before incorporating it.
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	350 .BU
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	351 .Pn msh
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	352 was removed
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	353 .Ci 916690191222433a6923a4be54b0d8f6ac01bd02
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	354 because the tool was in conflict with the philosophy of MH.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	355 It provided an interactive shell to access the features of MH,
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	356 but it was not just a shell tailored to the needs of mail handling.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	357 Instead, it was one large program that had several MH tools built in.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	358 This conflicts with the major feature of MH of being a tool chest.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	359 .Pn msh 's
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	360 main use case had been accessing Bulletin Boards, which have ceased to
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	361 be popular.
24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	362 .P
24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	363 Removing
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	364 .Pn msh
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	365 together with the truly archaic code relicts
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	366 .Pn vmh
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	367 and
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	368 .Pn wmh
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	369 saved more than 7\\|000 lines of C code \(en
66 4c9f4d05d90e Rework and extension of text from yesterday. markus schnalke <meillo@marmaro.de> parents: 63 diff changeset	370 about 15\\|% of the project's original source code amount.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	371 Having less code \(en with equal readability, of course \(en
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	372 for the same functionality is an advantage.
63 abbaca05ee8e More text. markus schnalke <meillo@marmaro.de> parents: 62 diff changeset	373 Less code means less bugs and less maintenance work.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	374 As
63 abbaca05ee8e More text. markus schnalke <meillo@marmaro.de> parents: 62 diff changeset	375 .Pn rcvtty
abbaca05ee8e More text. markus schnalke <meillo@marmaro.de> parents: 62 diff changeset	376 and
abbaca05ee8e More text. markus schnalke <meillo@marmaro.de> parents: 62 diff changeset	377 .Pn msgchk
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	378 are assumed to be rarely used and can be implemented in different ways,
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	379 why should one keep them?
125 0e102cec0c73 s/stream-line/streamline/; s/motorbike/motorcycle/ markus schnalke <meillo@marmaro.de> parents: 124 diff changeset	380 Removing them streamlines mmh.
63 abbaca05ee8e More text. markus schnalke <meillo@marmaro.de> parents: 62 diff changeset	381 .Pn viamail 's
abbaca05ee8e More text. markus schnalke <meillo@marmaro.de> parents: 62 diff changeset	382 use case is now partly obsolete and partly covered by
abbaca05ee8e More text. markus schnalke <meillo@marmaro.de> parents: 62 diff changeset	383 .Pn forw ,
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	384 hence there's no reason to still maintain it.
63 abbaca05ee8e More text. markus schnalke <meillo@marmaro.de> parents: 62 diff changeset	385 .Pn conflict
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	386 is not related to the mail client, and
63 abbaca05ee8e More text. markus schnalke <meillo@marmaro.de> parents: 62 diff changeset	387 .Pn msh
abbaca05ee8e More text. markus schnalke <meillo@marmaro.de> parents: 62 diff changeset	388 conflicts with the basic concept of MH.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	389 These two tools might still be useful, but they should not be part of mmh.
63 abbaca05ee8e More text. markus schnalke <meillo@marmaro.de> parents: 62 diff changeset	390 .P
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	391 Finally, there is
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	392 .Pn slocal .
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	393 .Pn slocal
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	394 is an MDA and thus not directly MUA-related.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	395 It should be removed from mmh, because including it conflicts with
178 520b3c7abba1 s/a MUA/an MUA/ markus schnalke <meillo@marmaro.de> parents: 177 diff changeset	396 the idea that mmh is an MUA only.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	397 .Pn slocal
6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	398 should rather become a separate project.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	399 However,
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	400 .Pn slocal
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	401 provides rule-based processing of messages, like filing them into
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	402 different folders, which is otherwise not available in mmh.
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	403 Although
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	404 .Pn slocal
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	405 neither pulls in dependencies, nor does it include a separate
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	406 technical area (cf. Sec.
63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	407 .Cf mail-transfer-facilities ),
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	408 it still accounts for about 1\\|000 lines of code that need to be maintained.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	409 As
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	410 .Pn slocal
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	411 is almost self-standing, it should be split off into a separate project.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	412 This would cut the strong connection between the MUA mmh and the MDA
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	413 .Pn slocal .
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	414 For anyone not using MH,
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	415 .Pn slocal
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	416 would become yet another independent MDA, like
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	417 .I procmail .
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	418 Then
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	419 .Pn slocal
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	420 could be installed without the complete MH system.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	421 Likewise, mmh users could decide to use
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	422 .I procmail
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	423 without having a second, unused MDA,
7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	424 .Pn slocal ,
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	425 installed.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	426 That appears to be conceptionally the best solution.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	427 Yet,
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	428 .Pn slocal
87 7d5b180de542 All kinds of rework plus new refs. markus schnalke <meillo@marmaro.de> parents: 85 diff changeset	429 is not split off.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	430 I defer the decision over
78 64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	431 .Pn slocal
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	432 out of a need for deeper investigation.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	433 In the meanwhile, it remains part of mmh.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	434 However, its continued existence is not significant because
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	435 .Pn slocal
6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	436 is unrelated to the rest of the project.
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	437
0 dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	438
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	439
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	440 .H2 "Displaying Messages
155 75f20c925999 Fixed macro typo; and added typo fix found by Boris. markus schnalke <meillo@marmaro.de> parents: 154 diff changeset	441 .Id mhshow
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	442 .P
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	443 Since the very beginning, already in the first concept paper,
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	444 .\" XXX ref!!!
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	445 .Pn show
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	446 had been MH's message display program.
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	447 .Pn show
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	448 mapped message numbers and sequences to files and invoked
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	449 .Pn mhl
89 83bfb4dbf59f Spellchecked. markus schnalke <meillo@marmaro.de> parents: 88 diff changeset	450 to have the files formatted.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	451 With MIME, this approach was not sufficient anymore.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	452 MIME messages can consist of multiple parts. Some parts are not
6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	453 directly displayable and text content might be encoded in
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	454 foreign charsets.
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	455 .Pn show 's
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	456 understanding of messages and
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	457 .Pn mhl 's
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	458 display capabilities could not cope with the task any longer.
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	459 .P
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	460 Instead of extending these tools, additional tools were written from
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	461 scratch and added to the MH tool chest.
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	462 Doing so is encouraged by the tool chest approach.
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	463 Modular design is a great advantage for extending a system,
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	464 as new tools can be added without interfering with existing ones.
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	465 First, the new MIME features were added in form of the single program
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	466 .Pn mhn .
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	467 The command
82 ff4537327162 Mayor rework: Replaced .DS with .VS, a better verbatim environment. markus schnalke <meillo@marmaro.de> parents: 78 diff changeset	468 .Cl "mhn -show 42
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	469 would show the MIME message numbered 42.
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	470 With the 1.0 release of nmh in February 1999, Richard Coleman finished
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	471 the split of
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	472 .Pn mhn
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	473 into a set of specialized tools, which together covered the
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	474 multiple aspects of MIME.
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	475 One of them was
69 f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	476 .Pn mhshow ,
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	477 which replaced
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	478 .Cl "mhn -show" .
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	479 It was capable of displaying MIME messages appropriately.
62 24aabbfe5794 Minor rework of larger text areas. markus schnalke <meillo@marmaro.de> parents: 60 diff changeset	480 .P
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	481 From then on, two message display tools were part of nmh,
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	482 .Pn show
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	483 and
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	484 .Pn mhshow .
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	485 To ease the life of users,
69 f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	486 .Pn show
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	487 was extended to automatically hand the job over to
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	488 .Pn mhshow
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	489 if displaying the message would be beyond
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	490 .Pn show 's
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	491 abilities.
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	492 In consequence, the user would simply invoke
69 f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	493 .Pn show
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	494 (possibly through
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	495 .Pn next
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	496 or
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	497 .Pn prev )
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	498 and get the message printed with either
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	499 .Pn show
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	500 or
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	501 .Pn mhshow ,
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	502 whatever was more appropriate.
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	503 .P
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	504 Having two similar tools for essentially the same task is redundant.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	505 Usually, users would not distinguish between
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	506 .Pn show
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	507 and
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	508 .Pn mhshow
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	509 in their daily mail reading.
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	510 Having two separate display programs was therefore mainly unnecessary
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	511 from a user's point of view.
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	512 Besides, the development of both programs needed to be in sync,
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	513 to ensure that the programs behaved in a similar way,
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	514 because they were used like a single tool.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	515 Different behavior would have surprised the user.
69 f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	516 .P
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	517 Today, non-MIME messages are rather seen to be a special case of
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	518 MIME messages, although it is the other way round.
69 f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	519 As
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	520 .Pn mhshow
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	521 had already been able to display non-MIME messages, it appeared natural
69 f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	522 to drop
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	523 .Pn show
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	524 in favor of using
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	525 .Pn mhshow
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	526 exclusively.
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	527 .Ci 4c1efddfd499300c7e74263e57d8aa137e84c853
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	528 Removing
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	529 .Pn show
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	530 is no loss in function, because functionally
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	531 .Pn mhshow
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	532 covers it completely.
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	533 The old behavior of
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	534 .Pn show
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	535 can still be emulated with the simple command line:
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	536 .VS
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	537 mhl `mhpath c`
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	538 VE
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	539 .P
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	540 For convenience,
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	541 .Pn mhshow
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	542 was renamed to
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	543 .Pn show
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	544 after
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	545 .Pn show
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	546 was gone.
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	547 It is clear that such a rename may confuse future developers when
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	548 trying to understand the history.
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	549 Nevertheless, I consider the convenience on the user's side,
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	550 to call
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	551 .Pn show
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	552 when they want a message to be displayed, to outweigh the inconvenience
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	553 on the developer's side when understanding the project history.
69 f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	554 .P
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	555 To prepare for the transition,
69 f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	556 .Pn mhshow
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	557 was reworked to behave more like
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	558 .Pn show
f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	559 first.
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	560 (cf. Sec.
63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	561 .Cf mhshow )
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	562 .\" XXX code commits?
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	563 Once the tools behaved more alike, the replacing appeared to be
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	564 even more natural.
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	565 Today, mmh's new
69 f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	566 .Pn show
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	567 has become the one single message display program once more,
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	568 with the difference
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	569 that today it handles MIME messages as well as non-MIME messages.
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	570 The outcome of the transition is one program less to maintain,
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	571 no second display program for users to deal with,
30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	572 and less system complexity.
69 f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	573 .P
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	574 Still, removing the old
69 f80ced4e749b Wrote more about the show-mhshow merge. markus schnalke <meillo@marmaro.de> parents: 66 diff changeset	575 .Pn show
88 30830e3b9e98 Further rework. markus schnalke <meillo@marmaro.de> parents: 87 diff changeset	576 hurts in one regard: It had been such a simple program.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	577 Its lean elegance is missing from the new
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	578 .Pn show ,
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	579 .\" XXX
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	580 however there is no alternative;
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	581 supporting MIME demands higher essential complexity.
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	582
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	583 .ig
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	584 XXX
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	585 Consider including text on scan listings here
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	586
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	587 Scan listings shall not contain body content. Hence, removed this feature.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	588 Scan listings shall operator on message headers and non-message information
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	589 only. Displaying the beginning of the body complicates everything too much.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	590 That's no surprise, because it's something completely different. If you
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	591 want to examine the body, then use show(1)/mhshow(1).
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	592 Changed the default scan formats accordingly.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	593 .Ci 70b2643e0da8485174480c644ad9785c84f5bff4
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	594 ..
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	595
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	596
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	597
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	598
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	599 .H2 "Configure Options
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	600 .P
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	601 Customization is a double-edged sword.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	602 It allows better suiting setups, but not for free.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	603 There is the cost of code complexity to be able to customize.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	604 There is the cost of less tested setups, because there are
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	605 more possible setups and especially corner cases.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	606 Additionally, there is the cost of choice itself.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	607 The code complexity directly affects the developers.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	608 Less tested code affects both users and developers.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	609 The problem of choice affects the users, for once by having to choose,
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	610 but also by more complex interfaces that require more documentation.
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	611 Whenever options add few advantages but increase the complexity of the
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	612 system, they should be considered for removal.
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	613 I have reduced the number of project-specific configure options from
bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	614 fifteen to three.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	615
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	616 .U3 "Mail Transfer Facilities
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	617 .P
85 fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	618 With the removal of the mail transfer facilities five configure
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	619 options vanished:
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	620 .P
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	621 The switches
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	622 .Sw --with-tls
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	623 and
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	624 .Sw --with-cyrus-sasl
89 83bfb4dbf59f Spellchecked. markus schnalke <meillo@marmaro.de> parents: 88 diff changeset	625 had activated the support for transfer encryption and authentication.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	626 .\" XXX cf
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	627 .\" XXX gruende kurz wiederholen
85 fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	628 This is not needed anymore.
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	629 .Ci fecd5d34f65597a4dfa16aeabea7d74b191532c3
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	630 .Ci 156d35f6425bea4c1ed3c4c79783dc613379c65b
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	631 .P
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	632 .\" XXX cf
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	633 .\" XXX ``For the same reason ...''
85 fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	634 The configure switch
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	635 .Sw --enable-pop
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	636 activated the message retrieval facility.
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	637 The code area that would be conditionally compiled in for TLS and SASL
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	638 support had been small.
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	639 The conditionally compiled code area for POP support had been much larger.
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	640 Whereas the code base changes would only slightly change on toggling
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	641 TLS or SASL support, it changed much on toggling POP support.
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	642 The changes in the code base could hardly be overviewed.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	643 By having POP support togglable, a second code base had been created,
85 fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	644 one that needed to be tested.
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	645 This situation is basically similar for the conditional TLS and SASL
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	646 code, but there the changes are minor and can yet be overviewed.
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	647 Still, conditional compilation of a code base creates variations
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	648 of the original program.
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	649 More variations require more testing and maintenance work.
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	650 .P
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	651 Two other options only specified default configuration values:
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	652 .Sw --with-mts
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	653 defined the default transport service.
85 fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	654 .Ci f6aa95b724fd8c791164abe7ee5468bf5c34f226
fb0d1b4c8fb1 Extended the text about mail transfer configure options. markus schnalke <meillo@marmaro.de> parents: 84 diff changeset	655 With
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	656 .Sw --with-smtpservers
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	657 default SMTP servers could be specified.
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	658 .Ci 128545e06224233b7e91fc4c83f8830252fe16c9
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	659 Both of them became irrelevant when the SMTP transport service was removed.
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	660 .\" XXX code ref
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	661 In mmh, all messages are handed over to
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	662 .Pn sendmail
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	663 for transportation.
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	664
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	665
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	666 .U3 "Backup Prefix
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	667 .P
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	668 The backup prefix is the string that was prepended to message
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	669 filenames to tag them as deleted.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	670 By default it had been the comma character (`\fL,\fP').
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	671 .\" XXX Zeitlich ordnen
78 64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	672 In July 2000, Kimmo Suominen introduced
64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	673 the configure option
64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	674 .Sw --with-hash-backup
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	675 to change the default to the hash character `\f(CW#\fP'.
78 64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	676 The choice was probably personal preference, because first, the
64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	677 option was named
64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	678 .Sw --with-backup-prefix.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	679 and had the prefix character as argument.
4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	680 But giving the hash character as argument caused too many problems
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	681 for Autoconf,
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	682 thus the option was limited to use the hash character as the default prefix.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	683 This supports the assumption, that the choice for the hash was
6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	684 personal preference only.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	685 Being related or not, words that start with the hash character
78 64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	686 introduce a comment in the Unix shell.
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	687 Thus, the command line
bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	688 .Cl "rm #13 #15
bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	689 calls
bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	690 .Pn rm
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	691 without arguments because the first hash character starts the comment
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	692 that reaches until the end of the line.
bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	693 To delete the backup files,
bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	694 .Cl "rm ./#13 ./#15"
bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	695 needs to be used.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	696 Using the hash as backup prefix can be seen as a precaution against
78 64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	697 data loss.
64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	698 .P
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	699 First, I removed the configure option but added the profile entry
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	700 .Pe backup-prefix ,
bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	701 which allows to specify an arbitrary string as backup prefix.
bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	702 .Ci 6c40d481d661d532dd527eaf34cebb6d3f8ed086
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	703 Profile entries are the common method to change mmh's behavior.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	704 This change did not remove the choice but moved it to a location where
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	705 it suited better.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	706 .P
78 64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	707 Eventually, however, the new trash folder concept
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	708 (cf. Sec.
63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	709 .Cf trash-folder )
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	710 removed the need for the backup prefix completely.
78 64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	711 .Ci 8edc5aaf86f9f77124664f6801bc6c6cdf258173
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	712 .Ci ca0b3e830b86700d9e5e31b1784de2bdcaf58fc5
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	713
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	714
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	715 .U3 "Editor and Pager
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	716 .P
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	717 The two configure options
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	718 .CW --with-editor=EDITOR
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	719 .CW --with-pager=PAGER
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	720 were used to specify the default editor and pager at configure time.
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	721 Doing so at configure time made sense in the eighties,
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	722 when the set of available editors and pagers varied much across
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	723 different systems.
89 83bfb4dbf59f Spellchecked. markus schnalke <meillo@marmaro.de> parents: 88 diff changeset	724 Today, the situation is more homogeneous.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	725 The programs
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	726 .Pn vi
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	727 and
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	728 .Pn more
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	729 can be expected to be available on every Unix system,
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	730 as they are specified by POSIX since two decades.
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	731 (The specifications for
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	732 .Pn vi
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	733 and
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	734 .Pn more
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	735 appeared in
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	736 .[
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	737 posix 1987
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	738 .]
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	739 and,
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	740 .[
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	741 posix 1992
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	742 .]
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	743 respectively.)
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	744 As a first step, these two tools were hard-coded as defaults.
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	745 .Ci 5d43a99db70c12a673028c7758c20cbe3e13ef5f
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	746 Not changed were the
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	747 .Pe editor
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	748 and
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	749 .Pe moreproc
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	750 profile entries, which allowed the user to override the system defaults.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	751 Later, the concept was reworked to respect the standard environment
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	752 variables
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	753 .Ev VISUAL
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	754 and
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	755 .Ev PAGER
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	756 if they are set.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	757 Today, mmh determines the editor to use in the following order,
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	758 taking the first available and non-empty item:
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	759 .LI 1
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	760 Environment variable
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	761 .Ev MMHEDITOR
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	762 .LI 2
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	763 Profile entry
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	764 .Pe Editor
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	765 .LI 3
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	766 Environment variable
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	767 .Ev VISUAL
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	768 .LI 4
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	769 Environment variable
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	770 .Ev EDITOR
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	771 .LI 5
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	772 Command
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	773 .Pn vi .
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	774 .LP
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	775 .Ci f85f4b7ae62e3d05a945dcd46ead51f0a2a89a9b
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	776 .P
89 83bfb4dbf59f Spellchecked. markus schnalke <meillo@marmaro.de> parents: 88 diff changeset	777 The pager to use is determined in a similar order,
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	778 also taking the first available and non-empty item:
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	779 .LI 1
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	780 Environment variable
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	781 .Ev MMHPAGER
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	782 .LI 2
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	783 Profile entry
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	784 .Pe Pager
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	785 (replaces
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	786 .Pe moreproc )
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	787 .LI 3
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	788 Environment variable
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	789 .Ev PAGER
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	790 .LI 4
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	791 Command
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	792 .Pn more .
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	793 .LP
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	794 .Ci 0c4214ea2aec6497d0d67b436bbee9bc1d225f1e
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	795 .P
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	796 By respecting the
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	797 .Ev VISUAL /\c
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	798 .Ev EDITOR
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	799 and
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	800 .Ev PAGER
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	801 environment variables,
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	802 the new behavior confirms better to the common style on Unix systems.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	803 Additionally, the new approach is more uniform and clearer to users.
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	804
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	805
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	806 .U3 "ndbm
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	807 .P
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	808 .Pn slocal
78 64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	809 used to depend on
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	810 .I ndbm ,
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	811 a database library.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	812 The database is used to store the `\fLMessage-ID\fP's of all
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	813 messages delivered.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	814 This enables
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	815 .Pn slocal
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	816 to suppress delivering the same message to the same user twice.
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	817 (This features was enabled by the
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	818 .Sw -suppressdup
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	819 switch.)
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	820 .P
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	821 A variety of versions of the database library exist.
78 64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	822 .[
64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	823 wolter unix incompat notes dbm
64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	824 .]
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	825 Complicated autoconf code was needed to detect them correctly.
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	826 Furthermore, the configure switches
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	827 .Sw --with-ndbm=ARG
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	828 and
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	829 .Sw --with-ndbmheader=ARG
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	830 were added to help with difficult setups that would
78 64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	831 not be detected automatically or correctly.
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	832 .P
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	833 By removing the suppress duplicates feature of
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	834 .Pn slocal ,
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	835 the dependency on
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	836 .I ndbm
78 64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	837 vanished and 120 lines of complex autoconf code could be saved.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	838 .Ci ecd6d6a20cb7a1507e3a20d6c4cb3a1cf14c6bbf
89 83bfb4dbf59f Spellchecked. markus schnalke <meillo@marmaro.de> parents: 88 diff changeset	839 The change removed functionality too, but that is minor to the
78 64f177ca2af1 Text rework. markus schnalke <meillo@marmaro.de> parents: 76 diff changeset	840 improvement by dropping the dependency and the complex autoconf code.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	841 .\" XXX argument: slocal ist sowieso nicht teil vom mmh kern
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	842
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	843 .U3 "mh-e Support
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	844 .P
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	845 The configure option
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	846 .Sw --disable-mhe
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	847 was removed when the mh-e support was reworked.
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	848 Mh-e is the Emacs front-end to MH.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	849 It requires MH to provide minor additional functions.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	850 The
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	851 .Sw --disable-mhe
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	852 configure option could switch these extensions off.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	853 After removing the support for old versions of mh-e,
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	854 only the
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	855 .Sw -build
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	856 switches of
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	857 .Pn forw
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	858 and
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	859 .Pn repl
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	860 are left to be mh-e extensions.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	861 They are now always built in because they add little code and complexity.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	862 In consequence, the
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	863 .Sw --disable-mhe
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	864 configure option was removed
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	865 .Ci a7ce7b4a580d77b6c2c4d980812beb589aa4c643
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	866 Removing the option removed a second code setup that would have
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	867 needed to be tested.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	868 .\" XXX datum?
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	869 This change was first accomplished in nmh and thereafter merged into mmh.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	870 .P
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	871 The interface changes in mmh require mh-e to be adjusted in order
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	872 to be able to use mmh as back-end.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	873 This will require minor changes to mh-e, but removing the
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	874 .Sw -build
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	875 switches would require more rework.
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	876
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	877 .U3 "Masquerading
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	878 .P
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	879 The configure option
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	880 .Sw --enable-masquerade
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	881 could take up to three arguments:
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	882 `draft_from', `mmailid', and `username_extension'.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	883 They activated different types of address masquerading.
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	884 All of them were implemented in the SMTP-speaking
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	885 .Pn post
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	886 command, which provided an MSA.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	887 Address masquerading is an MTA's task and mmh does not cover
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	888 this field anymore.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	889 Hence, true masquerading needs to be implemented in the external MTA.
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	890 .P
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	891 The
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	892 .I mmailid
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	893 masquerading type is the oldest one of the three and the only one
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	894 available in the original MH.
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	895 It provided a
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	896 .I username
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	897 to
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	898 .I fakeusername
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	899 mapping, based on the password file's GECOS field.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	900 The man page
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	901 .Mp mh-tailor (5)
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	902 described the use case as being the following:
98 d894191d7a33 style: Changed the block quote approach. New QS and QE. markus schnalke <meillo@marmaro.de> parents: 97 diff changeset	903 .QS
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	904 This is useful if you want the messages you send to always
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	905 appear to come from the name of an MTA alias rather than your
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	906 actual account name. For instance, many organizations set up
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	907 `First.Last' sendmail aliases for all users. If this is
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	908 the case, the GECOS field for each user should look like:
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	909 ``First [Middle] Last <First.Last>''
98 d894191d7a33 style: Changed the block quote approach. New QS and QE. markus schnalke <meillo@marmaro.de> parents: 97 diff changeset	910 .QE
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	911 .P
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	912 As mmh sends outgoing mail via the local MTA only,
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	913 the best location to do such global rewrites is there.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	914 Besides, the MTA is conceptionally the right location because it
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	915 does the reverse mapping for incoming mail (aliasing), too.
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	916 Furthermore, masquerading set up there is readily available for all
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	917 mail software on the system.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	918 Hence, mmailid masquerading was removed.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	919 .Ci 0836c8000ccb34b59410ef1c15b1b7feac70ce5f
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	920 .P
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	921 The
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	922 .I username_extension
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	923 masquerading type did not replace the username but would append a suffix,
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	924 specified by the
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	925 .Ev USERNAME_EXTENSION
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	926 environment variable, to it.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	927 This provided support for the
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	928 .I user-extension
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	929 feature of qmail and the similar
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	930 .I "plussed user
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	931 processing of sendmail.
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	932 The decision to remove this username_extension masquerading was
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	933 motivated by the fact that
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	934 .Pn spost
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	935 had not supported it already.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	936 .Ci 2abae0bfd0ad5bf898461e50aa4b466d641f23d9
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	937 Username extensions are possible in mmh, but less convenient to use.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	938 .\" XXX covered by next paragraph
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	939 .\" XXX format file %(getenv USERNAME_EXTENSION)
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	940 .P
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	941 The
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	942 .I draft_from
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	943 masquerading type instructed
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	944 .Pn post
84 c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	945 to use the value of the
c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	946 .Hd From
c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	947 header field as SMTP envelope sender.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	948 Sender addresses could be replaced completely.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	949 .Ci b14ea6073f77b4359aaf3fddd0e105989db9
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	950 Mmh offers a kind of masquerading similar in effect, but
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	951 with technical differences.
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	952 As mmh does not transfer messages itself, the local MTA has final control
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	953 over the sender's address. Any masquerading mmh introduces may be reverted
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	954 by the MTA.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	955 In times of pedantic spam checking, an MTA will take care to use
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	956 sensible envelope sender addresses to keep its own reputation up.
84 c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	957 Nonetheless, the MUA can set the
c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	958 .Hd From
c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	959 header field and thereby propose
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	960 a sender address to the MTA.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	961 The MTA may then decide to take that one or generate the canonical sender
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	962 address for use as envelope sender address.
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	963 .P
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	964 In mmh, the MTA will always extract the recipient and sender from the
84 c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	965 message header (\c
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	966 .Pn sendmail 's
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	967 .Sw -t
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	968 switch).
84 c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	969 The
c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	970 .Hd From
c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	971 header field of the draft may be set arbitrary by the user.
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	972 If it is missing, the canonical sender address will be generated by the MTA.
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	973
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	974 .U3 "Remaining Options
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	975 .P
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	976 Two configure options remain in mmh.
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	977 One is the locking method to use:
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	978 .Sw --with-locking=[dot\|fcntl\|flock\|lockf] .
76 2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	979 The idea of removing all methods except the portable dot locking
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	980 and having that one as the default is appealing, but this change
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	981 requires deeper technical investigation into the topic.
2e61e0004a8f Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 74 diff changeset	982 The other option,
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	983 .Sw --enable-debug ,
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	984 compiles the programs with debugging symbols and does not strip them.
cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	985 This option is likely to stay.
72 bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	986
bae9273b5802 Wrote about configure options (not finished yet). markus schnalke <meillo@marmaro.de> parents: 69 diff changeset	987
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	988
63 abbaca05ee8e More text. markus schnalke <meillo@marmaro.de> parents: 62 diff changeset	989
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	990 .H2 "Command Line Switches
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	991 .P
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	992 The command line switches of MH tools is similar to the X Window style.
346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	993 .\" XXX ref
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	994 They are words, introduced by a single dash.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	995 For example:
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	996 .Cl "-truncate" .
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	997 Every program in mmh has two generic switches:
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	998 .Sw -help ,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	999 to print a short message on how to use the program, and
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1000 .Sw -Version
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1001 (with capital `V'), to tell what version of mmh the program belongs to.
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1002 .P
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1003 Switches change the behavior of programs.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1004 Programs that do one thing in one way require no switches.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1005 In most cases, doing something in exactly one way is too limiting.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1006 If there is basically one task to accomplish, but it should be done
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1007 in various ways, switches are a good approach to alter the behavior
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1008 of a program.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1009 Changing the behavior of programs provides flexibility and customization
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1010 to users, but at the same time it complicates the code, documentation and
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1011 usage of the program.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1012 .\" XXX: Ref
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1013 Therefore, the number of switches should be kept small.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1014 A small set of well-chosen switches does no harm.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1015 But usually, the number of switches increases over time.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1016 Already in 1985, Rose and Romine have identified this as a major
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1017 problem of MH:
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1018 .[ [
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1019 rose romine real work
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1020 .], p. 12]
98 d894191d7a33 style: Changed the block quote approach. New QS and QE. markus schnalke <meillo@marmaro.de> parents: 97 diff changeset	1021 .QS
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1022 A complaint often heard about systems which undergo substantial development
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1023 by many people over a number of years, is that more and more options are
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1024 introduced which add little to the functionality but greatly increase the
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1025 amount of information a user needs to know in order to get useful work done.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1026 This is usually referred to as creeping featurism.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1027 .QP
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1028 Unfortunately MH, having undergone six years of off-and-on development by
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1029 ten or so well-meaning programmers (the present authors included),
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1030 suffers mightily from this.
98 d894191d7a33 style: Changed the block quote approach. New QS and QE. markus schnalke <meillo@marmaro.de> parents: 97 diff changeset	1031 .QE
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1032 .P
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1033 Being reluctant to adding new switches \(en or `options',
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1034 as Rose and Romine call them \(en is one part of a counter-action,
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1035 the other part is removing hardly used switches.
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1036 Nmh's tools had lots of switches already implemented,
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1037 hence, cleaning up by removing some of them was the more important part
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1038 of the counter-action.
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1039 Removing existing functionality is always difficult because it
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1040 breaks programs that use these functions.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1041 Also, for every obsolete feature, there'll always be someone who still
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1042 uses it and thus opposes its removal.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1043 This puts the developer into the position,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1044 where sensible improvements to style are regarded as destructive acts.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1045 Yet, living with the featurism is far worse, in my eyes, because
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1046 future needs will demand adding further features,
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1047 worsening the situation more and more.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1048 Rose and Romine added in a footnote,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1049 ``[...]
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1050 .Pn send
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1051 will no doubt acquire an endless number of switches in the years to come.''
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1052 Although clearly humorous, the comment points to the nature of the problem.
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1053 Refusing to add any new switches would encounter the problem at its root,
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1054 but this is not practical.
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1055 New needs will require new switches and it would be unwise to block
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1056 them strictly.
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1057 Nevertheless, removing obsolete switches still is an effective approach
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1058 to deal with the problem.
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1059 Working on an experimental branch without an established user base,
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1060 eased my work because I did not offend users when I removed existing
110 4c0f13b1e0e8 Spellchecked. markus schnalke <meillo@marmaro.de> parents: 109 diff changeset	1061 functions.
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1062 .P
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1063 Rose and Romine counted 24 visible and 9 more hidden switches for
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1064 .Pn send .
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1065 In nmh, they increased up to 32 visible and 12 hidden ones.
182 764738b17b74 Updated the numbers of cmdline switches to recent mmh changes. markus schnalke <meillo@marmaro.de> parents: 181 diff changeset	1066 At the time of writing, no more than 4 visible switches and 1 hidden switch
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1067 have remained in mmh's
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1068 .Pn send .
183 4c5055a0e981 Explained `hidden switches'. markus schnalke <meillo@marmaro.de> parents: 182 diff changeset	1069 These numbers include two generic switches,
182 764738b17b74 Updated the numbers of cmdline switches to recent mmh changes. markus schnalke <meillo@marmaro.de> parents: 181 diff changeset	1070 .Sw -help
764738b17b74 Updated the numbers of cmdline switches to recent mmh changes. markus schnalke <meillo@marmaro.de> parents: 181 diff changeset	1071 and
183 4c5055a0e981 Explained `hidden switches'. markus schnalke <meillo@marmaro.de> parents: 182 diff changeset	1072 .Sw -Version .
4c5055a0e981 Explained `hidden switches'. markus schnalke <meillo@marmaro.de> parents: 182 diff changeset	1073 Hidden switches are ones not documented.
4c5055a0e981 Explained `hidden switches'. markus schnalke <meillo@marmaro.de> parents: 182 diff changeset	1074 In mmh, 12 tools have hidden switches.
4c5055a0e981 Explained `hidden switches'. markus schnalke <meillo@marmaro.de> parents: 182 diff changeset	1075 9 of them are
4c5055a0e981 Explained `hidden switches'. markus schnalke <meillo@marmaro.de> parents: 182 diff changeset	1076 .Sw -debug
4c5055a0e981 Explained `hidden switches'. markus schnalke <meillo@marmaro.de> parents: 182 diff changeset	1077 switches, the other 6 provide special interfaces for internal use.
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1078 .P
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	1079 The figure displays the number of switches for each of the tools
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1080 that is available in both nmh and mmh.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1081 The tools are sorted by the number of switches they had in nmh.
6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1082 Visible and hidden switches were counted,
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1083 but not the generic help and version switches.
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1084 Whereas in the beginning of the project, the average tool had 11 switches,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1085 now it has no more than 5 \(en only half as many.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1086 If the `no' switches and similar inverse variant are folded onto
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1087 their counter-parts, the average tool had 8 switches in pre-mmh times and
6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1088 has 4 now.
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1089 The total number of functional switches in mmh dropped from 465
182 764738b17b74 Updated the numbers of cmdline switches to recent mmh changes. markus schnalke <meillo@marmaro.de> parents: 181 diff changeset	1090 to 233.
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1091
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1092 .KS
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1093 .in 1c
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1094 .so input/switches.grap
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1095 .KE
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1096
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	1097 .P
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1098 A part of the switches vanished after functions were removed.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1099 This was the case for network mail transfer, for instance.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1100 Sometimes, however, the work flow was the other way:
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1101 I looked through the
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1102 .Mp mh-chart (7)
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1103 man page to identify the tools with apparently too many switches.
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1104 Then considering the value of each of the switches by examining
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1105 the tool's man page and source code, aided by recherche and testing.
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1106 This way, the removal of functions was suggested by the aim to reduce
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1107 the number of switches per command.
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1108
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1109
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1110 .U3 "Draft Folder Facility
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1111 .P
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1112 A change early in the project was the complete transition from
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1113 the single draft message to the draft folder facility.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1114 .Ci 337338b404931f06f0db2119c9e145e8ca5a9860
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1115 .\" XXX ref to section ...
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1116 The draft folder facility was introduced in the mid-eighties, when
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1117 Rose and Romine called it a ``relatively new feature''.
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1118 .[
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1119 rose romine real work
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1120 .]
110 4c0f13b1e0e8 Spellchecked. markus schnalke <meillo@marmaro.de> parents: 109 diff changeset	1121 Since then, the facility had existed but was inactive by default.
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1122 The default activation and the related rework of the tools made it
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1123 possible to remove the
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1124 .Sw -[no]draftfolder ,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1125 and
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1126 .Sw -draftmessage
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1127 switches from
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1128 .Pn comp ,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1129 .Pn repl ,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1130 .Pn forw ,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1131 .Pn dist ,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1132 .Pn whatnow ,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1133 and
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1134 .Pn send .
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1135 .Ci 337338b404931f06f0db2119c9e145e8ca5a9860
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1136 The only flexibility removed with this change is having multiple
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1137 draft folders within one profile.
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1138 I consider this a theoretical problem only.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1139 At the same time, the
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1140 .Sw -draft
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1141 switch of
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1142 .Pn anno ,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1143 .Pn refile ,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1144 and
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1145 .Pn send
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1146 was removed.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1147 The special treatment of \fIthe\fP draft message became irrelevant after
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1148 the rework of the draft system.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1149 (cf. Sec.
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	1150 .Cf draft-folder )
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1151 Furthermore,
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1152 .Pn comp
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1153 no longer needs a
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1154 .Sw -file
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1155 switch as the draft folder facility together with the
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1156 .Sw -form
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1157 switch are sufficient.
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1158
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1159
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1160 .U3 "In Place Editing
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1161 .P
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1162 .Pn anno
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1163 had the switches
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1164 .Sw -[no]inplace
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1165 to either annotate the message in place and thus preserve hard links,
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1166 or annotate a copy to replace the original message, breaking hard links.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1167 Following the assumption that linked messages should truly be the
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1168 same message, and annotating it should not break the link, the
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1169 .Sw -[no]inplace
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1170 switches were removed and the previous default
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1171 .Sw -inplace
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1172 was made the only behavior.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1173 .Ci c8195849d2e366c569271abb0f5f60f4ebf0b4d0
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1174 The
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1175 .Sw -[no]inplace
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1176 switches of
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1177 .Pn repl ,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1178 .Pn forw ,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1179 and
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1180 .Pn dist
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1181 could be removed, too, as they were simply passed through to
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1182 .Pn anno .
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1183 .P
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1184 .Pn burst
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1185 also had
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1186 .Sw -[no]inplace
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1187 switches, but with different meaning.
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1188 With
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1189 .Sw -inplace ,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1190 the digest had been replaced by the table of contents (i.e. the
110 4c0f13b1e0e8 Spellchecked. markus schnalke <meillo@marmaro.de> parents: 109 diff changeset	1191 introduction text) and the burst messages were placed right
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1192 after this message, renumbering all following messages.
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1193 Also, any trailing text of the digest was lost, though,
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1194 in practice, it usually consists of an end-of-digest marker only.
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1195 Nontheless, this behavior appeared less elegant than the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1196 .Sw -noinplace
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1197 behavior, which already had been the default.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1198 Nmh's
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1199 .Mp burst (1)
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1200 man page reads:
98 d894191d7a33 style: Changed the block quote approach. New QS and QE. markus schnalke <meillo@marmaro.de> parents: 97 diff changeset	1201 .QS
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1202 If
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1203 .Sw -noinplace
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1204 is given, each digest is preserved, no table
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1205 of contents is produced, and the messages contained within
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1206 the digest are placed at the end of the folder. Other messages
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1207 are not tampered with in any way.
98 d894191d7a33 style: Changed the block quote approach. New QS and QE. markus schnalke <meillo@marmaro.de> parents: 97 diff changeset	1208 .QE
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1209 .LP
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1210 The decision to drop the
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1211 .Sw -inplace
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1212 behavior was supported by the code complexity and the possible data loss
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1213 it caused.
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1214 .Sw -noinplace
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1215 was chosen to be the definitive behavior.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1216 .Ci 68a686adeb39223a5e1ad35e4a24890ec053679d
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1217
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1218
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1219 .U3 "Forms and Format Strings
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1220 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1221 Historically, the tools that had
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1222 .Sw -form
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1223 switches to supply a form file had
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1224 .Sw -format
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1225 switches as well to supply the contents of a form file as a string
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1226 on the command line directly.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1227 In consequence, the following two lines equaled:
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1228 .VS
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1229 scan -form scan.mailx
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1230 scan -format "`cat .../scan.mailx`"
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1231 VE
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1232 The
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1233 .Sw -format
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1234 switches were dropped in favor for extending the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1235 .Sw -form
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1236 switches.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1237 .Ci f51956be123db66b00138f80464d06f030dbb88d
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1238 If their argument starts with an equal sign (`='),
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1239 then the rest of the argument is taken as a format string,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1240 otherwise the arguments is treated as the name of a format file.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1241 Thus, now the following two lines equal:
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1242 .VS
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1243 scan -form scan.mailx
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1244 scan -form "=`cat .../scan.mailx`"
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1245 VE
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1246 This rework removed the prefix collision between
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1247 .Sw -form
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1248 and
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1249 .Sw -format .
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1250 Now, typing
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1251 .Sw -fo
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1252 suffices to specify form or format string.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1253 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1254 The different meaning of
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1255 .Sw -format
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1256 for
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1257 .Pn repl
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1258 and
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1259 .Pn forw
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1260 was removed in mmh.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1261 .Pn forw
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1262 was completely switched to MIME-type forwarding, thus removing the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1263 .Sw -[no]format .
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1264 .Ci 6e271608b7b9c23771523f88d23a4d3593010cf1
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1265 For
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1266 .Pn repl ,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1267 the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1268 .Sw -[no]format
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1269 switches were reworked to
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1270 .Sw -[no]filter
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1271 switches.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1272 .Ci 67411b1f95d6ec987b4c732459e1ba8a8ac192c6
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1273 The
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1274 .Sw -format
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1275 switches of
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1276 .Pn send
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1277 and
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1278 .Pn post ,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1279 which had a third meaning,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1280 were removed likewise.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1281 .Ci f3cb7cde0e6f10451b6848678d95860d512224b9
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1282 Eventually, the ambiguity of the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1283 .Sw -format
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1284 switches was resolved by not anymore having any such switch in mmh.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1285
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1286
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1287 .U3 "MIME Tools
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1288 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1289 The MIME tools, which were once part of
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1290 .Pn mhn
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1291 .\" XXX
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1292 (whatever that stood for),
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1293 had several switches that added little practical value to the programs.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1294 The
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1295 .Sw -[no]realsize
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1296 switches of
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1297 .Pn mhbuild
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1298 and
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1299 .Pn mhlist
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1300 were removed, doing real size calculations always now
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1301 .Ci 8d8f1c3abc586c005c904e52c4adbfe694d2201c ,
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1302 as nmh's
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1303 .Mp mhbuild (1)
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1304 man page states
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1305 ``This provides an accurate count at the expense of a small delay.''
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1306 This small delay is not noticable on modern systems.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1307 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1308 The
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1309 .Sw -[no]check
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1310 switches were removed together with the support for
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1311 .Hd Content-MD5
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1312 header fields.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1313 .[
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1314 rfc 1864
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1315 .]
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1316 .Ci 31dc797eb5178970d68962ca8939da3fd9a8efda
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	1317 (cf. Sec.
63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	1318 .Cf content-md5 )
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1319 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1320 The
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1321 .Sw -[no]ebcdicsafe
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1322 and
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1323 .Sw -[no]rfc934mode
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1324 switches of
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1325 .Pn mhbuild
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1326 were removed because they are considered obsolete.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1327 .Ci 01a3480928da485b4d6109d36d751dfa71799d58
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1328 .Ci 3363e2624dce0eb8164cf8b3f1ab385c8ff72e88
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1329 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1330 Content caching of external MIME parts, activated with the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1331 .Sw -rcache
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1332 and
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1333 .Sw -wcache
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1334 switches was completely removed.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1335 .Ci d1fefd9f614e4dc3cda16da6c69133c1b2005269
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1336 External MIME parts are rare today, having a caching facility
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1337 for them appears to be unnecessary.
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1338 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1339 In pre-MIME times,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1340 .Pn mhl
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1341 had covered many tasks that are part of MIME handling today.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1342 Therefore,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1343 .Pn mhl
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1344 could be simplified to a large extend, reducing the number of its
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1345 switches from 21 to 6.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1346 .Ci 350ad6d3542a07639213cf2a4fe524e829c1e7b6
29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1347 .Ci 0e46503be3c855bddaeae3843e1b659279c35d70
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1348
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1349
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1350
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1351
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1352 .U3 "Header Printing
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1353 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1354 .Pn folder 's
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1355 data output is self-explaining enough that
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1356 displaying the header line makes little sense.
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1357 Hence, the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1358 .Sw -[no]header
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1359 switch was removed and headers are never printed.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1360 .Ci 601cc73d1fa05ce96faa728f036d6c51b91701c7
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1361 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1362 In
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1363 .Pn mhlist ,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1364 the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1365 .Sw -[no]header
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1366 switches were removed, too.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1367 .Ci b24f96523aaf60e44e04a3ffb1d22e69a13a602f
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1368 But in this case headers are always printed,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1369 because the output is not self-explaining.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1370 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1371 .Pn scan
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1372 also had
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1373 .Sw -[no]header
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1374 switches.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1375 Printing the header had been sensible until the introduction of
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1376 format strings made it impossible to display the column headings.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1377 Only the folder name and the current date remained to be printed.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1378 As this information can be perfectly retrieved by
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1379 .Pn folder
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1380 and
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1381 .Pn date ,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1382 consequently, the switches were removed.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1383 .Ci c477dc5d1d03fa6d9a8ab3dd3508c63cbddc044e
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1384 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1385 By removing all
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1386 .Sw -header
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1387 switches, the collision with
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1388 .Sw -help
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1389 on the first two letters was resolved.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1390 Currently,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1391 .Sw -h
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1392 evaluates to
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1393 .Sw -help
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1394 for all tools of mmh.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1395
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1396
139 b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1397 .U3 "Suppressing Edits or the Invocation of the WhatNow Shell
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1398 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1399 The
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1400 .Sw -noedit
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1401 switch of
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1402 .Pn comp ,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1403 .Pn repl ,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1404 .Pn forw ,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1405 .Pn dist ,
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1406 and
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1407 .Pn whatnow
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1408 was removed, but it can now be replaced by specifying
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1409 .Sw -editor
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1410 with an empty argument.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1411 .Ci 75fca31a5b9d5c1a99c74ab14c94438d8852fba9
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1412 (Specifying
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1413 .Cl "-editor /bin/true
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1414 is nearly the same, only differing by the previous editor being set.)
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1415 .P
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1416 The more important change is the removal of the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1417 .Sw -nowhatnowproc
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1418 switch.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1419 .Ci ee4f43cf2ef0084ec698e4e87159a94c01940622
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1420 This switch had introduced an awkward behavior, as explained in nmh's
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1421 man page for
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1422 .Mp comp (1):
98 d894191d7a33 style: Changed the block quote approach. New QS and QE. markus schnalke <meillo@marmaro.de> parents: 97 diff changeset	1423 .QS
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1424 The
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1425 .Sw -editor
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1426 .Ar editor
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1427 switch indicates the editor to use for
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1428 the initial edit. Upon exiting from the editor,
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1429 .Pn comp
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1430 will invoke the
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1431 .Pn whatnow
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1432 program. See
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1433 .Mp whatnow (1)
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1434 for a discussion of available options.
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1435 The invocation of this program can be
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1436 inhibited by using the
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1437 .Sw -nowhatnowproc
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1438 switch. (In truth of fact, it is the
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1439 .Pn whatnow
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1440 program which starts the initial edit.
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1441 Hence,
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1442 .Sw -nowhatnowproc
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1443 will prevent any edit from occurring.)
98 d894191d7a33 style: Changed the block quote approach. New QS and QE. markus schnalke <meillo@marmaro.de> parents: 97 diff changeset	1444 .QE
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1445 .P
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1446 Effectively, the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1447 .Sw -nowhatnowproc
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1448 switch creates only a draft message.
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1449 As
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1450 .Cl "-whatnowproc /bin/true
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1451 causes the same behavior, the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1452 .Sw -nowhatnowproc
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1453 switch was removed for being redundant.
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1454 Likely, the
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1455 .Sw -nowhatnowproc
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1456 switch was intended to be used by front-ends.
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1457
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1458
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1459
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1460 .U3 "Various
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1461 .BU
139 b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1462 With the removal of MMDF maildrop format support,
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1463 .Pn packf
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1464 and
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1465 .Pn rcvpack
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1466 no longer needed their
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1467 .Sw -mbox
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1468 and
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1469 .Sw -mmdf
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1470 switches.
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1471 .Sw -mbox
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	1472 is the sole behavior now.
139 b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1473 .Ci 3916ab66ad5d183705ac12357621ea8661afd3c0
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	1474 Further rework in both tools made the
139 b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1475 .Sw -file
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	1476 switch unnecessary.
139 b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1477 .Ci ca1023716d4c2ab890696f3e41fa0d94267a940e
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1478
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1479 .BU
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1480 Mmh's tools will no longer clear the screen (\c
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1481 .Pn scan 's
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1482 and
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1483 .Pn mhl 's
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1484 .Sw -[no]clear
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1485 switches
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1486 .Ci e57b17343dcb3ff373ef4dd089fbe778f0c7c270
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1487 .Ci 943765e7ac5693ae177fd8d2b5a2440e53ce816e ).
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1488 Neither will
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1489 .Pn mhl
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1490 ring the bell (\c
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1491 .Sw -[no]bell
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1492 .Ci e11983f44e59d8de236affa5b0d0d3067c192e24 )
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1493 nor page the output itself (\c
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1494 .Sw -length
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1495 .Ci 5b9d883db0318ed2b84bb82dee880d7381f99188 ).
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1496 .\" XXX Ref
139 b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1497 Generally, the pager to use is no longer specified with the
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1498 .Sw -[no]moreproc
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1499 command line switches for
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1500 .Pn mhl
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1501 and
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1502 .Pn show /\c
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1503 .Pn mhshow .
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1504 .Ci 39e87a75b5c2d3572ec72e717720b44af291e88a
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1505
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1506 .BU
96 12348d620245 Spell checking. markus schnalke <meillo@marmaro.de> parents: 95 diff changeset	1507 In order to avoid prefix collisions among switch names, the
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1508 .Sw -version
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1509 switch was renamed to
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1510 .Sw -Version
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1511 (with capital `V').
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1512 .Ci 32b2354dbaf4bf934936eb5b102a4a3d2fdd209a
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1513 Every program has the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1514 .Sw -version
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1515 switch but its first three letters collided with the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1516 .Sw -verbose
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1517 switch, present in many programs.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1518 The rename solved this problem once for all.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1519 Although this rename breaks a basic interface, having the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1520 .Sw -V
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1521 abbreviation to display the version information, isn't all too bad.
139 b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1522
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1523 .BU
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1524 .Sw -[no]preserve
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1525 of
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1526 .Pn refile
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	1527 was removed
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	1528 .Ci 8edc5aaf86f9f77124664f6801bc6c6cdf258173
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	1529 because what use was it anyway?
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	1530 Quoting nmh's man page
165 ea6eec1722d1 Improvement by Boris Kraut. markus schnalke <meillo@marmaro.de> parents: 164 diff changeset	1531 .Mp refile (1):
98 d894191d7a33 style: Changed the block quote approach. New QS and QE. markus schnalke <meillo@marmaro.de> parents: 97 diff changeset	1532 .QS
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1533 Normally when a message is refiled, for each destination
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1534 folder it is assigned the number which is one above the current
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1535 highest message number in that folder. Use of the
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1536 .Sw -preserv
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1537 [sic!] switch will override this message renaming, and try
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1538 to preserve the number of the message. If a conflict for a
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1539 particular folder occurs when using the
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1540 .Sw -preserve
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1541 switch, then
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1542 .Pn refile
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1543 will use the next available message number which
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1544 is above the message number you wish to preserve.
98 d894191d7a33 style: Changed the block quote approach. New QS and QE. markus schnalke <meillo@marmaro.de> parents: 97 diff changeset	1545 .QE
139 b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1546
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1547 .BU
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1548 The removal of the
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1549 .Sw -[no]reverse
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1550 switches of
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1551 .Pn scan
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1552 .Ci 8edc5aaf86f9f77124664f6801bc6c6cdf258173
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1553 is a bug fix, supported by the comments
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1554 ``\-[no]reverse under #ifdef BERK (I really HATE this)''
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1555 by Rose and
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1556 ``Lists messages in reverse order with the `\-reverse' switch.
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1557 This should be considered a bug.'' by Romine in the documentation.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1558 .\" XXX Ref: welche datei genau.
97 29a7454fcded Added references to commits. markus schnalke <meillo@marmaro.de> parents: 96 diff changeset	1559 The question remains why neither Rose and Romine had fixed this
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1560 bug in the eighties when they wrote these comments nor has anyone
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1561 thereafter.
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	1562
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	1563
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1564 .ig
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	1565
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1566 forw: [no]dashstuffing(mhl)
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1567
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1568 mhshow: [no]pause [no]serialonly
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1569
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1570 mhmail: resent queued
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1571 inc: snoop, (pop)
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1572
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1573 mhl: [no]faceproc folder sleep
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1574 [no]dashstuffing(forw) digest list volume number issue number
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1575
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1576 prompter: [no]doteof
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1577
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1578 refile: [no]preserve [no]unlink [no]rmmproc
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1579
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1580 send: [no]forward [no]mime [no]msgid
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1581 [no]push split [no]unique (sasl) width snoop [no]dashstuffing
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1582 attach attachformat
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1583 whatnow: (noedit) attach
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1584
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1585 slocal: [no]suppressdups
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1586
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1587 spost: [no]filter [no]backup width [no]push idanno
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1588 [no]check(whom) whom(whom)
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1589
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1590 whom: ???
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1591
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1592 ..
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1593
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1594
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1595 .ig
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1596
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1597 .P
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1598 In the best case, all switches are unambiguous on the first character,
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1599 or on the three-letter prefix for the `no' variants.
96 12348d620245 Spell checking. markus schnalke <meillo@marmaro.de> parents: 95 diff changeset	1600 Reducing switch prefix collisions, shortens the necessary prefix length
93 093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1601 the user must type.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1602 Having less switches helps best.
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1603
093ccf39a45e Write text about removal of switches; Included the grap figure. markus schnalke <meillo@marmaro.de> parents: 89 diff changeset	1604 ..
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	1605
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1606
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1607 .\" XXX: whatnow prompt commands
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1608
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1609
95 edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1610
edac7e46a9f2 More text about switches. markus schnalke <meillo@marmaro.de> parents: 93 diff changeset	1611
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	1612 .\" --------------------------------------------------------------
74 cefaa856d431 A lot of new text about configure switches. markus schnalke <meillo@marmaro.de> parents: 72 diff changeset	1613 .H1 "Modernizing
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1614 .P
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1615 In the more than thirty years of MH's existence, its code base was
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1616 increasingly extended.
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	1617 New features entered the project and became alternatives to the
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	1618 existing behavior.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	1619 Relicts from several decades have gathered in the code base,
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	1620 but seldom obsolete features were dropped.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	1621 This section describes the removing of old code
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	1622 and the modernizing of the default setup.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	1623 It focuses on the functional aspect only;
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	1624 the non-functional aspects of code style are discussed in Sec.
63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	1625 .Cf code-style .
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	1626
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	1627
100 6ae7dc4a3a02 Included changes proposed by Lydi. markus schnalke <meillo@marmaro.de> parents: 98 diff changeset	1628 .H2 "Code Relicts
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	1629 .P
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1630 My position regarding the removal of obsolete functions of mmh,
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1631 .\" XXX ``in order to remove old code,''
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1632 is much more revolutional than the nmh community appreciates.
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1633 Working on an experimental version, I was quickly able to drop
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1634 functionality I considered ancient.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1635 The need for consensus with peers would have slowed this process down.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1636 Without the need to justify my decisions, I was able to rush forward.
110 4c0f13b1e0e8 Spellchecked. markus schnalke <meillo@marmaro.de> parents: 109 diff changeset	1637 In December 2011, Paul Vixie motivated the nmh developers to just
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1638 .\" XXX ugs
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1639 do the work:
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1640 .[
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1641 paul vixie edginess nmh-workers
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1642 .]
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1643 .QS
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1644 let's stop walking on egg shells with this code base. there's no need to
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1645 discuss whether to keep using vfork, just note in [sic!] passing, [...]
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1646 we don't need a separate branch for removing vmh
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1647 or ridding ourselves of #ifdef's or removing posix replacement functions
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1648 or depending on pure ansi/posix ``libc''.
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1649 .QP
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	1650 these things should each be a day or two of work and the ``main branch''
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1651 should just be modern. [...]
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1652 let's push forward, aggressively.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1653 .QE
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1654 .LP
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1655 I did so already in the months before.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1656 I pushed forward.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1657 .\" XXX semicolon ?
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1658 I simply dropped the cruft.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1659 .P
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1660 The decision to drop a feature was based on literature research and
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1661 careful thinking, but whether having had contact with this particular
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1662 feature within my own computer life served as a rule of thumb.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1663 I explained my reasons in the commit messages
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1664 in the version control system.
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1665 Hence, others can comprehend my view and argue for undoing the change
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1666 if I have missed an important aspect.
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1667 I was quick in dropping parts.
179 b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	1668 I rather include falsely dropped parts again, than going at a slower pace.
b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	1669 Mmh is experimental work; it requires tough decisions.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1670 .\" XXX ``exp. work'' schon oft gesagt
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	1671
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1672
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1673 .U3 "Forking
0 dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	1674 .P
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1675 Being a tool chest, MH creates many processes.
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1676 In earlier times
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1677 .Fu fork()
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1678 had been an expensive system call, because the process's image needed
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1679 to be completely duplicated at once.
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1680 This expensive work was especially unnecessary in the commonly occuring
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1681 case wherein the image is replaced by a call to
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1682 .Fu exec()
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1683 right after having forked the child process.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1684 The
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1685 .Fu vfork()
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1686 system call was invented to speed up this particular case.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1687 It completely omits the duplication of the image.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1688 On old systems this resulted in significant speed ups.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1689 Therefore MH used
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1690 .Fu vfork()
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1691 whenever possible.
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	1692 .P
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1693 Modern memory management units support copy-on-write semantics, which make
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1694 .Fu fork()
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1695 almost as fast as
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1696 .Fu vfork() .
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1697 The man page of
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1698 .Mp vfork (2)
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1699 in FreeBSD 8.0 states:
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1700 .QS
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1701 This system call will be eliminated when proper system sharing mechanisms
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1702 are implemented. Users should not depend on the memory sharing semantics
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1703 of vfork() as it will, in that case, be made synonymous to fork(2).
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1704 .QE
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1705 .LP
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1706 Vixie supports the removal with the note that ``the last
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1707 system on which fork was so slow that an mh user would notice it, was
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1708 Eunice. that was 1987''.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1709 .[
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1710 nmh-workers vixie edginess
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1711 .]
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1712 I replaced all calls to
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1713 .Fu vfork()
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1714 with calls to
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1715 .Fu fork() .
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1716 .Ci 40821f5c1316e9205a08375e7075909cc9968e7d
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	1717 .P
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1718 Related to the costs of
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1719 .Fu fork()
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1720 is the probability of its success.
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1721 In the eighties, on heavy loaded systems, calls to
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1722 .Fu fork()
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1723 were prone to failure.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1724 Hence, many of the
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1725 .Fu fork()
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1726 calls in the code were wrapped into loops to retry the
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1727 .Fu fork()
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1728 several times, to increase the chances to succeed, eventually.
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1729 On modern systems, a failing
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1730 .Fu fork()
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1731 call is unusual.
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1732 Hence, in the rare case when
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1733 .Fu fork()
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1734 fails, mmh programs simply abort.
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1735 .Ci 5fbf37ee68e018998ada61eeab73e035b26834b6
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	1736
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1737
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1738 .U3 "Header Fields
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1739 .BU
84 c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	1740 The
c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	1741 .Hd Encrypted
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1742 header field was introduced by RFC\\|822,
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1743 but already marked as legacy in RFC\\|2822.
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1744 Today, OpenPGP provides the basis for standardized exchange of encrypted
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1745 messages [RFC\\|4880, RFC\\|3156].
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1746 Hence, the support for
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1747 .Hd Encrypted
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1748 header fields is removed in mmh.
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1749 .Ci 064527f7b57ab050e5af13e15ad99aeeab125857
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1750 .BU
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1751 The native support for
84 c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	1752 .Hd Face
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1753 header fields has been removed, as well.
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1754 .Ci 8e5be81f784682822f5e868c1bf3c8624682bd23
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1755 This feature is similar to the
84 c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	1756 .Hd X-Face
c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	1757 header field in its intent,
21 bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	1758 but takes a different approach to store the image.
84 c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	1759 Instead of encoding the image data directly into the header field,
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1760 it contains the hostname and UDP port where the image
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1761 date can be retrieved.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1762 There is even a third Face system,
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1763 which is the successor of
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1764 .Hd X-Face ,
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1765 although it re-uses the
84 c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	1766 .Hd Face
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1767 header field.
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1768 It was invented in 2005 and supports colored PNG images.
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1769 None of the Face systems described here is popular today.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1770 Hence, mmh has no direct support for them.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1771 .BU
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	1772 .Id content-md5
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1773 The
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1774 .Hd Content-MD5
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1775 header field was introduced by RFC\\|1864.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1776 It provides detection of data corruption during the transfer.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1777 But it can not ensure verbatim end-to-end delivery of the contents
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1778 [RFC\\|1864].
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1779 The proper approach to verify content integrity in an
166 f102dcc06bb9 s/digital cryptography/signing and encryption/ markus schnalke <meillo@marmaro.de> parents: 165 diff changeset	1780 end-to-end relationship is the use of digital signatures.
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1781 .\" XXX (RFCs FIXME).
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1782 On the other hand, transfer protocols should detect corruption during
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1783 the transmission.
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1784 The TCP includes a checksum field therefore.
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1785 These two approaches in combinations render the
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1786 .Hd Content-MD5
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1787 header field superfluous.
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1788 Not a single one out of 4\\|200 messages from two decades
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1789 in an nmh-workers mailing list archive contains a
84 c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	1790 .Hd Content-MD5
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1791 header field.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1792 Neither did any of the 60\\|000 messages in my personal mail storage.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1793 Removing the support for this header field,
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1794 removed the last place where MD5 computation was needed.
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1795 .Ci 31dc797eb5178970d68962ca8939da3fd9a8efda
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1796 Hence, the MD5 code could be removed as well.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1797 Over 500 lines of code vanished by this one change.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1798
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1799
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1800 .U3 "MMDF maildrop support
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1801 .P
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1802 This type of format is conceptionally similar to the mbox format,
139 b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1803 but uses a different message delimiter (`\fL\\1\\1\\1\\1\fP',
b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	1804 commonly written as `\fL^A^A^A^A\fP', instead of `\fLFrom\0\fP').
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1805 Mbox is the de-facto standard maildrop format on Unix,
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1806 whereas the MMDF maildrop format is now forgotten.
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1807 By dropping the MMDF maildrop format support,
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1808 mbox became the only packed mailbox format supported in mmh.
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1809 .P
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1810 The simplifications within the code were moderate.
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1811 Mainly, the reading and writing of MMDF mailbox files was removed.
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1812 But also, switches of
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1813 .Pn packf
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1814 and
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1815 .Pn rcvpack
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1816 could be removed.
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1817 .Ci 3916ab66ad5d183705ac12357621ea8661afd3c0
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1818 In the message parsing function
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1819 .Fn sbr/m_getfld.c ,
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1820 knowledge of MMDF packed mail boxes was removed.
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1821 .Ci 684ec30d81e1223a282764452f4902ed4ad1c754
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1822 Further code structure simplifications may be possible there,
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1823 because only one single packed mailbox format is left to be supported.
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1824 I have not worked on them yet because
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1825 .Fu m_getfld()
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1826 is heavily optimized and thus dangerous to touch.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1827 The risk of damaging the intricate workings of the optimized code is
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1828 too high.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1829
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	1830
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1831 .U3 "Prompter's Control Keys
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1832 .P
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1833 The program
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1834 .Pn prompter
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1835 queries the user to fill in a message form.
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1836 When used by
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1837 .Pn comp
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1838 as
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1839 .Cl "comp -editor prompter" ,
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1840 the resulting behavior is similar to
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1841 .Pn mailx .
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	1842 Apparently,
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1843 .Pn prompter
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	1844 had not been touched lately.
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1845 Otherwise it's hardly explainable why it
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1846 still offered the switches
84 c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	1847 .Sw -erase
c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	1848 .Ar chr
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1849 and
84 c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	1850 .Sw -kill
c35ec2b7de5d style: New macros .Ar (argument) and .Hd (header field) markus schnalke <meillo@marmaro.de> parents: 82 diff changeset	1851 .Ar chr
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1852 to name the characters for command line editing.
21 bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	1853 The times when this had been necessary are long time gone.
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1854 Today these things work out-of-the-box, and if not, are configured
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1855 with the standard tool
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1856 .Pn stty .
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1857 The switches are removed now
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1858 .Ci 0bd9750710cdbab80cfb4036dd87af20afe1552f .
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	1859
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1860
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1861 .U3 "Hardcopy Terminal Support
21 bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	1862 .P
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1863 More of a funny anecdote is a check for being connected to a
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1864 hardcopy terminal.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1865 It remained in the code until spring 2012, when I finally removed it
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1866 .Ci b7764c4a6b71d37918a97594d866258f154017ca .
21 bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	1867 .P
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1868 The check only prevented a pager to be placed between the printing
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1869 program (\c
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1870 .Pn mhl )
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1871 and the terminal.
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1872 In nmh, this could have been ensured statically with the
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1873 .Sw -nomoreproc
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1874 at the command line, too.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	1875 In mmh, setting the profile entry
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1876 .Pe Pager
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1877 or the environment variable
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1878 .Ev PAGER
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1879 to
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1880 .Pn cat
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1881 is sufficient.
104 2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1882
2818ca27d24c Various text rework. markus schnalke <meillo@marmaro.de> parents: 102 diff changeset	1883
21 bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	1884
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	1885
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	1886 .H2 "Attachments
22 99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	1887 .P
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1888 The mind model of email attachments is unrelated to MIME.
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1889 Although the MIME RFCs (2045 through 2049) define the technical
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1890 requirements for having attachments, they do not mention the word
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	1891 attachment.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1892 Instead of attachments, MIME talks about ``multi-part message bodies''
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1893 [RFC\\|2045], a more general concept.
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1894 Multi-part messages are messages
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1895 ``in which one or more different
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1896 sets of data are combined in a single body''
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1897 [RFC\\|2046].
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1898 MIME keeps its descriptions generic;
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1899 it does not imply specific usage models.
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1900 One usage model became prevalent: attachments.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1901 The idea is having a main text document with files of arbitrary kind
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1902 attached to it.
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1903 In MIME terms, this is a multi-part message having a text part first
110 4c0f13b1e0e8 Spellchecked. markus schnalke <meillo@marmaro.de> parents: 109 diff changeset	1904 and parts of arbitrary type following.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1905 .P
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1906 MH's MIME support is a direct implementation of the RFCs.
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1907 The perception of the topic described in the RFCs is clearly visible
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1908 in MH's implementation.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1909 .\" XXX rewrite ``no idea''.
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1910 As a result,
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1911 MH had all the MIME features but no idea of attachments.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	1912 But users do not need all the MIME features,
109 2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1913 they want convenient attachment handling.
2b094b8fb422 Rework of existing text. markus schnalke <meillo@marmaro.de> parents: 108 diff changeset	1914
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1915
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1916 .U3 "Composing MIME Messages
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1917 .P
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1918 In order to improve the situation on the message composing side,
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1919 Jon Steinhart had added an attachment system to nmh in 2002.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1920 .Ci 7480dbc14bc90f2d872d434205c0784704213252
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1921 In the file
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1922 .Fn docs/README-ATTACHMENTS ,
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1923 he described his motivation to do so as such:
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1924 .QS
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1925 Although nmh contains the necessary functionality for MIME message
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1926 handing [sic!], the interface to this functionality is pretty obtuse.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1927 There's no way that I'm ever going to convince my partner to write
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1928 .Pn mhbuild
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1929 composition files!
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1930 .QE
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1931 .LP
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1932 With this change, the mind model of attachments entered nmh.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1933 In the same document:
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1934 .QS
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1935 These changes simplify the task of managing attachments on draft files.
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1936 They allow attachments to be added, listed, and deleted.
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1937 MIME messages are automatically created when drafts with attachments
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1938 are sent.
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1939 .QE
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1940 .LP
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1941 Unfortunately, the attachment system,
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1942 like any new facilities in nmh,
110 4c0f13b1e0e8 Spellchecked. markus schnalke <meillo@marmaro.de> parents: 109 diff changeset	1943 was inactive by default.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1944 .P
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1945 During my work in Argentina, I tried to improve the attachment system.
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1946 But, because of great opposition in the nmh community,
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1947 my patch died as a proposal on the mailing list, after long discussions.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1948 .[
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1949 nmh-workers attachment proposal
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1950 .]
110 4c0f13b1e0e8 Spellchecked. markus schnalke <meillo@marmaro.de> parents: 109 diff changeset	1951 In January 2012, I extended the patch and applied it to mmh.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1952 .Ci 8ff284ff9167eff8f5349481529332d59ed913b1
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1953 In mmh, the attachment system is active by default.
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1954 Instead of command line switches, the
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1955 .Pe Attachment-Header
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1956 profile entry is used to specify
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1957 the name of the attachment header field.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1958 It is pre-defined to
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1959 .Hd Attach .
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1960 .P
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1961 To add an attachment to a draft, a header line needs to be added:
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1962 .VS
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1963 To: bob
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1964 Subject: The file you wanted
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1965 Attach: /path/to/the/file-bob-wanted
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1966 --------
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1967 Here it is.
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1968 VE
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1969 The header field can be added to the draft manually in the editor,
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1970 or by using the `attach' command at the WhatNow prompt, or
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1971 non-interactively with
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1972 .Pn anno :
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1973 .VS
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1974 anno -append -nodate -component Attach -text /path/to/attachment
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1975 VE
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1976 Drafts with attachment headers are converted to MIME automatically by
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1977 .Pn send .
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1978 The conversion to MIME is invisible to the user.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1979 The draft stored in the draft folder is always in source form with
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1980 attachment headers.
179 b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	1981 If the MIMEification fails (e.g. because the file to attach
b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	1982 is not accessible) the original draft is not changed.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1983 .P
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1984 The attachment system handles the forwarding of messages, too.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	1985 If the attachment header value starts with a plus character (`\fL+\fP'),
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1986 like in
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1987 .Cl "Attach: +bob 30 42" ,
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	1988 the given messages in the specified folder will be attached.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1989 This allowed to simplify
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1990 .Pn forw .
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1991 .Ci f41f04cf4ceca7355232cf7413e59afafccc9550
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1992 .P
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1993 Closely related to attachments is non-ASCII text content,
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1994 because it requires MIME too.
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1995 In nmh, the user needed to call `mime' at the WhatNow prompt
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1996 to have the draft converted to MIME.
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	1997 This was necessary whenever the draft contained non-ASCII characters.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1998 If the user did not call `mime', a broken message would be sent.
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	1999 Therefore, the
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2000 .Pe automimeproc
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2001 profile entry could be specified to have the `mime' command invoked
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2002 automatically each time.
179 b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	2003 Unfortunately, this approach conflicted with the attachment system
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2004 because the draft would already be in MIME format at the time
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2005 when the attachment system wanted to MIMEify it.
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2006 To use nmh's attachment system, `mime' must not be called at the
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2007 WhatNow prompt and
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2008 .Pe automimeproc
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2009 must not be set in the profile.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2010 But then the case of non-ASCII text without attachment headers was
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2011 not caught.
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2012 All in all, the solution was complex and irritating.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2013 My patch from December 2010
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2014 .[
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2015 nmh-workers attachment proposal
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2016 .]
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2017 would have simplified the situation.
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2018 .P
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2019 Mmh's current solution is even more elaborate.
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2020 Any necessary MIMEification is done automatically.
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2021 There is no `mime' command at the WhatNow prompt anymore.
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2022 The draft will be converted automatically to MIME when either an
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2023 attachment header or non-ASCII text is present.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	2024 Furthermore, the hash character (`\fL#\fP') is not special any more
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2025 at line beginnings in the draft message.
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2026 .\" XXX REF ?
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2027 Users need not concern themselves with the whole topic at all.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2028 .P
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2029 Although the new approach does not anymore support arbitrary MIME
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2030 compositions directly, the full power of
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2031 .Pn mhbuild
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2032 can still be accessed.
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2033 Given no attachment headers are included, the user can create
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2034 .Pn mhbuild
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2035 composition drafts like in nmh.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2036 Then, at the WhatNow prompt, he needs to invoke
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2037 .Cl "edit mhbuild
e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2038 to convert it to MIME.
110 4c0f13b1e0e8 Spellchecked. markus schnalke <meillo@marmaro.de> parents: 109 diff changeset	2039 Because the resulting draft does neither contain non-ASCII characters
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2040 nor has it attachment headers, the attachment system will not touch it.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2041 .P
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2042 The approach taken in mmh is tailored towards today's most common case:
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2043 a text part, possibly with attachments.
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2044 This case was simplified.
101 e8e6adb14beb Wrote about attachments. markus schnalke <meillo@marmaro.de> parents: 100 diff changeset	2045
112 4e6a9ae1b53c Added a bit of text on modern defaults; plus added code refs. markus schnalke <meillo@marmaro.de> parents: 110 diff changeset	2046
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2047 .U3 "MIME Type Guessing
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2048 .P
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2049 From the programmer's point of view, the use of
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2050 .Pn mhbuild
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2051 composition drafts had one notable advantage over attachment headers:
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2052 The user provides the appropriate MIME types for files to include.
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2053 The attachment system needs to find out the correct MIME type itself.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2054 This is a difficult task, yet it spares the user irritating work.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2055 Determining the correct MIME type of content is partly mechanical,
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2056 partly intelligent work.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2057 Forcing the user to find out the correct MIME type,
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2058 forces him to do partly mechanical work.
179 b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	2059 Letting the computer do the work can lead to bad choices for difficult
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2060 content.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2061 For mmh, the latter option was chosen.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2062 .P
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2063 Determining the MIME type by the suffix of the file name is a dumb
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2064 approach, yet it is simple to implement and provides good results
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2065 for the common cases.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2066 Mmh implements this approach in the
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2067 .Pn print-mimetype
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2068 script.
112 4e6a9ae1b53c Added a bit of text on modern defaults; plus added code refs. markus schnalke <meillo@marmaro.de> parents: 110 diff changeset	2069 .Ci 4b5944268ea0da7bb30598a27857304758ea9b44
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2070 Using it is the default choice.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2071 .P
112 4e6a9ae1b53c Added a bit of text on modern defaults; plus added code refs. markus schnalke <meillo@marmaro.de> parents: 110 diff changeset	2072 A far better, though less portable, approach is the use of
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2073 .Pn file .
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2074 This standard tool tries to determine the type of files.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2075 Unfortunately, its capabilities and accuracy varies from system to system.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2076 Additionally, its output was only intended for human beings,
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2077 but not to be used by programs.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2078 It varies much.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2079 Nevertheless, modern versions of GNU
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2080 .Pn file ,
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2081 which is prevalent on the popular GNU/Linux systems,
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2082 provide MIME type output in machine-readable form.
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2083 Although this solution is highly system-dependent,
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2084 it solves the difficult problem well.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2085 On systems where GNU
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2086 .Pn file ,
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2087 version 5.04 or higher, is available it should be used.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2088 One needs to specify the following profile entry to do so:
112 4e6a9ae1b53c Added a bit of text on modern defaults; plus added code refs. markus schnalke <meillo@marmaro.de> parents: 110 diff changeset	2089 .Ci 3baec236a39c5c89a9bda8dbd988d643a21decc6
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2090 .VS
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2091 Mime-Type-Query: file -b --mime
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2092 VE
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2093 .LP
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2094 Other versions of
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2095 .Pn file
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2096 might possibly be usable with wrapper scripts to reformat the output.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2097 The diversity among
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2098 .Pn file
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2099 implementations is great; one needs to check the local variant.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2100 .P
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2101 If no MIME type can be determined, text content gets sent as
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2102 `text/plain' and anything else under the generic fall-back type
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2103 `application/octet-stream'.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2104 It is not possible in mmh to override the automatic MIME type guessing
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2105 for a specific file.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2106 To do so, either the user would need to know in advance for which file
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2107 the automatic guessing fails, or the system would require interaction.
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2108 I consider both cases impractical.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2109 The existing solution should be sufficient.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2110 If not, the user may always fall back to
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2111 .Pn mhbuild
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2112 composition drafts and ignore the attachment system.
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2113
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2114
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2115 .U3 "Storing Attachments
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2116 .P
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	2117 Extracting MIME parts of a message and storing them to disk is performed by
108 dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2118 .Pn mhstore .
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2119 The program has two operation modes,
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2120 .Sw -auto
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2121 and
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2122 .Sw -noauto .
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2123 With the former one, each part is stored under the filename given in the
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2124 MIME part's meta information, if available.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2125 This naming information is usually available for modern attachments.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2126 If no filename is available, this MIME part is stored as if
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2127 .Sw -noauto
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2128 would have been specified.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2129 In the
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2130 .Sw -noauto
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2131 mode, the parts are processed according to rules, defined by
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2132 .Pe mhstore-store-*
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2133 profile entries.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2134 These rules define generic filename templates for storing
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2135 or commands to post-process the contents in arbitrary ways.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2136 If no matching rule is available the part is stored under a generic
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2137 filename, built from message number, MIME part number, and MIME type.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2138 .P
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2139 The
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2140 .Sw -noauto
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2141 mode had been the default in nmh because it was considered safe,
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2142 in contrast to the
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2143 .Sw -auto
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2144 mode.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2145 In mmh,
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2146 .Sw -auto
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2147 is not dangerous anymore.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2148 Two changes were necessary:
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2149 .LI 1
108 dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2150 Any directory path is removed from the proposed filename.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2151 Thus, the files are always stored in the expected directory.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2152 .Ci 41b6eadbcecf63c9a66aa5e582011987494abefb
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2153 .LI 2
108 dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2154 Tar files are not extracted automatically any more.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2155 Thus, the rest of the file system will not be touched.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2156 .Ci 94c80042eae3383c812d9552089953f9846b1bb6
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2157 .LP
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2158 Now, the outcome of mmh's
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2159 .Cl "mhstore -auto
110 4c0f13b1e0e8 Spellchecked. markus schnalke <meillo@marmaro.de> parents: 109 diff changeset	2160 can be foreseen from the output of
108 dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2161 .Cl "mhlist -verbose" .
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2162 .P
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2163 The
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2164 .Sw -noauto
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2165 mode is seen to be more powerful but less convenient.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2166 On the other hand,
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2167 .Sw -auto
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2168 is safe now and
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2169 storing attachments under their original name is intuitive.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2170 Hence,
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2171 .Sw -auto
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2172 serves better as the default option.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2173 .Ci 3410b680416c49a7617491af38bc1929855a331d
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2174 .P
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2175 Files are stored into the directory given by the
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2176 .Pe Nmh-Storage
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2177 profile entry, if set, or
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2178 into the current working directory, otherwise.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2179 Storing to different directories is only possible with
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2180 .Pe mhstore-store-*
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2181 profile entries.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2182 .P
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2183 Still, in both modes, existing files get overwritten silently.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2184 This can be considered a bug.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2185 Yet, each other behavior has its draw-backs, too.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2186 Refusing to replace files requires adding a
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2187 .Sw -force
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2188 option.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2189 Users will likely need to invoke
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2190 .Pn mhstore
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2191 a second time with
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2192 .Sw -force .
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2193 Eventually, only the user can decide in the specific case.
108 dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2194 This requires interaction, which I like to avoid if possible.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2195 Appending a unique suffix to the filename is another bad option.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2196 For now, the behavior remains as it is.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2197 .P
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2198 In mmh, only MIME parts of type message are special in
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2199 .Pn mhstore 's
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2200 .Sw -auto
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2201 mode.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2202 Instead of storing message/rfc822 parts as files to disk,
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2203 they are stored as messages into the current mail folder.
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2204 The same applies to message/partial, although the parts are
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2205 automatically reassembled beforehand.
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2206 MIME parts of type message/external-body are not automatically retrieved
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2207 anymore.
8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2208 Instead, information on how to retrieve them is output.
108 dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2209 Not supporting this rare case saved nearly one thousand lines of code.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2210 .Ci 55e1d8c654ee0f7c45b9361ce34617983b454c32
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2211 .\" XXX mention somewhere else too: (The profile entry `nmh-access-ftp'
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2212 .\" and sbr/ruserpass.c for reading ~/.netrc are gone now.)
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2213 `application/octet-stream; type=tar' is not special anymore.
108 dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2214 Automatically extracting such MIME parts had been the dangerous part
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2215 of the
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2216 .Sw -auto
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2217 mode.
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2218 .Ci 94c80042eae3383c812d9552089953f9846b1bb6
dd5620bf8659 Wrote about storing attachments. markus schnalke <meillo@marmaro.de> parents: 107 diff changeset	2219
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2220
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2221
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2222 .U3 "Showing MIME Messages
a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2223 .P
114 92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2224 The program
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2225 .Pn mhshow
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2226 had been written to display MIME messages.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2227 It implemented the conceptional view of the MIME RFCs.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2228 Nmh's
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2229 .Pn mhshow
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2230 handled each MIME part independently, presenting them separately
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2231 to the user.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2232 This does not match today's understanding of email attachments,
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2233 where displaying a message is seen to be a single, integrated operation.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2234 Today, email messages are expected to consist of a main text part
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2235 plus possibly attachments.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2236 They are not any more seen to be arbitrary MIME hierarchies with
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2237 information on how to display the individual parts.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2238 I adjusted
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2239 .Pn mhshow 's
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2240 behavior to the modern view on the topic.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2241 .P
159 8b411125645d Corrections and improvements by Kate, Phil, Matou, Michi, Lydi. markus schnalke <meillo@marmaro.de> parents: 157 diff changeset	2242 One should note that this section completely ignores the original
114 92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2243 .Pn show
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2244 program, because it was not capable to display MIME messages
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2245 and is no longer part of mmh.
179 b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	2246 .\" XXX ref to other section
114 92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2247 Although
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2248 .Pn mhshow
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2249 was renamed to
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2250 .Pn show
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2251 in mmh, this section uses the name
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2252 .Pn mhshow ,
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2253 in order to avoid confusion.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2254 .P
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2255 In mmh, the basic idea is that
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2256 .Pn mhshow
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2257 should display a message in one single pager session.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2258 Therefore,
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2259 .Pn mhshow
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2260 invokes a pager session for all its output,
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2261 whenever it prints to a terminal.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2262 .Ci a4197ea6ffc5c1550e8b52d5a654bcaaaee04a4e
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2263 In consequence,
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2264 .Pn mhl
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2265 does no more invoke a pager.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2266 .Ci 0e46503be3c855bddaeae3843e1b659279c35d70
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2267 With
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2268 .Pn mhshow
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2269 replacing the original
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2270 .Pn show ,
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2271 output from
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2272 .Pn mhl
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2273 does not go to the terminal directly, but through
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2274 .Pn mhshow .
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2275 Hence,
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2276 .Pn mhl
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2277 does not need to invoke a pager.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2278 The one and only job of
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2279 .Pn mhl
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2280 is to format messages or parts of them.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2281 The only place in mmh, where a pager is invoked is
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2282 .Pn mhshow .
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2283 .P
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2284 .Pe mhshow-show-*
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2285 profile entries can be used to display MIME parts in a specific way.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2286 For instance, PDF and Postscript files could be converted to plain text
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2287 to display them in the terminal.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	2288 In mmh, MIME parts will always be displayed serially.
114 92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2289 The request to display the MIME type `multipart/parallel' in parallel
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2290 is ignored.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2291 It is simply treated as `multipart/mixed'.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2292 .Ci d0581ba306a7299113a346f9b4c46ce97bc4cef6
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2293 This could already be requested with the, now removed,
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2294 .Sw -serialonly
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2295 switch of
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2296 .Pn mhshow .
179 b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	2297 As MIME parts are always processed exclusively, i.e. serially,
114 92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2298 the `%e' escape in
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2299 .Pe mhshow-show-*
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2300 profile entries became useless and was thus removed.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2301 .Ci a20d405db09b7ccca74d3e8c57550883da49e1ae
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2302 .P
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2303 In the intended setup, only text content would be displayed.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2304 Non-text content would be converted to text by appropriate
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2305 .Pe mhshow-show-*
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2306 profile entries before, if possible and wanted.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2307 All output would be displayed in a single pager session.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2308 Other kinds of attachments are ignored.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2309 With
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2310 .Pe mhshow-show-*
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2311 profile entries for them, they can be displayed serially along
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2312 the message.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2313 For parallel display, the attachments need to be stored to disk first.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2314 .P
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2315 To display text content in foreign charsets, they need to be converted
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2316 to the native charset.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2317 Therefore,
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2318 .Pe mhshow-charset-*
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2319 profile entries used to be needed.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	2320 In mmh, the conversion is performed automatically by piping the
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	2321 text through the
114 92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2322 .Pn iconv
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2323 command, if necessary.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2324 .Ci 2433122c20baccb10b70b49c04c6b0497b5b3b60
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2325 Custom
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2326 .Pe mhshow-show-*
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2327 rules for textual content might need a
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2328 .Cl "iconv -f %c %f \|
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2329 prefix to have the text converted to the native charset.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2330 .P
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	2331 Although the conversion of foreign charsets to the native one
114 92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2332 has improved, it is not consistent enough.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2333 Further work needs to be done and
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2334 the basic concepts in this field need to be re-thought.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2335 Though, the default setup of mmh displays message in foreign charsets
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2336 correctly without the need to configure anything.
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2337
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2338
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2339 .ig
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2340
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2341 .P
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2342 mhshow/mhstore: Removed support for retrieving message/external-body parts.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	2343 These tools will not download the contents automatically anymore. Instead,
114 92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2344 they print the information needed to get the contents. If someone should
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2345 really receive one of those rare message/external-body messages, he can
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2346 do the job manually. We save nearly a thousand lines of code. That's worth
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2347 it!
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2348 (The profile entry `nmh-access-ftp' and sbr/ruserpass.c for reading
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2349 ~/.netrc are gone now.)
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2350 .Ci 55e1d8c654ee0f7c45b9361ce34617983b454c32
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2351
92cbd3fa1c40 Wrote text about displaying mime messages. markus schnalke <meillo@marmaro.de> parents: 112 diff changeset	2352 ..
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2353
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	2354
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	2355
166 f102dcc06bb9 s/digital cryptography/signing and encryption/ markus schnalke <meillo@marmaro.de> parents: 165 diff changeset	2356 .H2 "Signing and Encrypting
22 99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	2357 .P
166 f102dcc06bb9 s/digital cryptography/signing and encryption/ markus schnalke <meillo@marmaro.de> parents: 165 diff changeset	2358 Nmh offers no direct support for digital signatures and message encryption.
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2359 This functionality needed to be added through third-party software.
166 f102dcc06bb9 s/digital cryptography/signing and encryption/ markus schnalke <meillo@marmaro.de> parents: 165 diff changeset	2360 In mmh, the functionality should be included because it
f102dcc06bb9 s/digital cryptography/signing and encryption/ markus schnalke <meillo@marmaro.de> parents: 165 diff changeset	2361 is a part of modern email and likely wanted by users of mmh.
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2362 A fresh mmh installation should support signing and encrypting
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2363 out-of-the-box.
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2364 Therefore, Neil Rickert's
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2365 .Pn mhsign
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2366 and
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2367 .Pn mhpgp
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2368 scripts
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2369 .[
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2370 neil rickert mhsign mhpgp
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2371 .]
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2372 were included into mmh
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2373 .Ci f45cdc98117a84f071759462c7ae212f4bc5ab2e
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2374 .Ci 58cf09aa36e9f7f352a127158bbf1c5678bc6ed8 .
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2375 The scripts fit well because they are lightweight and
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2376 similar of style to the existing tools.
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2377 Additionally, no licensing difficulties appeared,
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2378 as they are part of the public domain.
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2379 .P
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2380 .Pn mhsign
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2381 handles the signing and encrypting part.
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2382 It comprises about 250 lines of shell code and interfaces between
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2383 .Pn gnupg
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2384 and
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2385 the MH system.
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2386 It was meant to be invoked manually at the WhatNow prompt, but in mmh,
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2387 .Pn send
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2388 invokes
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2389 .pn mhsign
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2390 automatically
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2391 .Ci c7b5e1df086bcc37ff40163ee67571f076cf6683 .
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2392 Special header fields were introduced to request this action.
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2393 If a draft contains the
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2394 .Hd Sign
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2395 header field,
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2396 .Pn send
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2397 will initiate the signing.
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2398 The signing key is either chosen automatically or specified by the
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2399 .Pe Pgpkey
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2400 profile entry.
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2401 .Pn send
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2402 always create signatures using the PGP/MIME standard, \" REF XXX
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2403 but by manually invoking
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2404 .Pn mhsign ,
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2405 old-style non-MIME signatures can be created as well.
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2406 To encrypt an outgoing message, the draft needs to contain an
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2407 .Hd Enc
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2408 header field.
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2409 Public keys of all recipients are searched for in the gnupg keyring and
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2410 in a file called
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2411 .Fn pgpkeys ,
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2412 which contains exceptions and overrides.
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2413 Unless public keys are found for all recipients,
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2414 .Pn mhsign
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2415 will refuse to encrypt it.
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2416 Currently, messages with hidden (BCC) recipients can not be encrypted.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2417 This work is pending because it requires a structurally more complex
346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2418 approach.
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2419 .P
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2420 .Pn mhpgp
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2421 is the companion to
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2422 .Pn mhsign .
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2423 It verifies signatures and decrypts messages.
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2424 Encrypted messages can either be temporarily decrypted for display
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2425 or permanently decrypted and stored into the current folder.
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2426 Currently,
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2427 .Pn mhpgp
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2428 needs to be invoked manually.
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2429 The integration into
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2430 .Pn show
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2431 and
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2432 .Pn mhstore
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2433 to verify signatures and decrypt messages as needs
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2434 is planned but not realized yet.
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2435 .P
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2436 Both scripts were written for nmh, hence they needed to be adjust
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2437 according to the differences between nmh and mmh.
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2438 For instance, they use the backup prefix no longer.
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	2439 Furthermore, compatibility support for old PGP features was dropped.
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2440 .P
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2441 The integrated message signing and encrypting support is one of the
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2442 most recent features in mmh.
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2443 It has not yet had the time to mature.
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2444 User feedback and personal experience need to be accumulated to
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2445 direct the further development of the facility.
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2446 Although the feedback and experience is still missing,
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2447 it seems to be worthwhile to consider adding
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2448 .Sw -[no]sign
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2449 and
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2450 .Sw -[no]enc
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2451 switches to
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2452 .Pn send ,
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2453 to be able to override the corresponding header fields.
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2454 A profile entry:
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2455 .VS
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2456 send: -sign
0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2457 VE
177 3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2458 would then activate signing for all outgoing messages.
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2459 With the present approach, a
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2460 .Hd Send
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2461 header component needs to be added to each draft template
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2462 to achieve the same result.
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2463 Adding the switches would ease the work greatly and keep the
3d7db5c7965d Finished the section on signing and encryption. markus schnalke <meillo@marmaro.de> parents: 173 diff changeset	2464 template files clean.
157 0cce17978f0a Wrote about signing and encrypting. Not finished yet. markus schnalke <meillo@marmaro.de> parents: 155 diff changeset	2465
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	2466
814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	2467
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	2468
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2469 .H2 "Draft and Trash Folder
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2470 .P
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	2471
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2472 .U3 "Draft Folder
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	2473 .Id draft-folder
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2474 .P
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2475 In the beginning, MH had the concept of a draft message.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2476 This is the file
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2477 .Fn draft
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2478 in the MH directory, which is treated special.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2479 On composing a message, this draft file was used.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2480 When starting to compose another message before the former one was sent,
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2481 the user had to decide among:
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2482 .LI 1
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2483 Using the old draft to finish and send it before starting with a new one.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2484 .LI 2
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2485 Discarding the old draft and replacing it with a new one.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2486 .LI 3
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2487 Preserving the old draft by refiling it to a folder.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2488 .LP
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2489 It was only possible to work in alternation on multiple drafts.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2490 Therefore, the current draft needed to be refiled to a folder and
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2491 another one re-used for editing.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2492 Working on multiple drafts at the same time was impossible.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2493 The usual approach of switching to a different MH context did not
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2494 help anything.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2495 .P
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2496 The draft folder facility exists to
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2497 allow true parallel editing of drafts, in a straight forward way.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2498 It was introduced by Marshall T. Rose, already in 1984.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2499 Similar to other new features, the draft folder was inactive by default.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2500 Even in nmh, the highly useful draft folder was not available
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2501 out-of-the-box.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2502 At least, Richard Coleman added the man page
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2503 .Mp mh-draft (5)
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2504 to better document the feature.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2505 .P
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2506 Not using the draft folder facility has the single advantage of having
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2507 the draft file at a static location.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2508 This is simple in simple cases but the concept does not scale for more
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2509 complex cases.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2510 The concept of the draft message is too limited for the problem.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2511 Therefore the draft folder was introduced.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2512 It is the more powerful and more natural concept.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2513 The draft folder is a folder like any other folder in MH.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2514 Its messages can be listed like any other messages.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2515 A draft message is no longer a special case.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2516 Tools do not need special switches to work on the draft message.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2517 Hence corner cases were removed.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2518 .P
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2519 The trivial part of the work was activating the draft folder with a
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2520 default name.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2521 I chose the name
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2522 .Fn +drafts
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2523 for obvious reasons.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2524 In consequence, the command line switches
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2525 .Sw -draftfolder
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2526 and
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2527 .Sw -draftmessage
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2528 could be removed.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2529 More difficult but also more improving was updating the tools to the
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2530 new concept.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2531 For nearly three decades, the tools needed to support two draft handling
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2532 approaches.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2533 By fully switching to the draft folder, the tools could be simplified
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2534 by dropping the awkward draft message handling code.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2535 .Sw -draft
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2536 switches were removed because operating on a draft message is no longer
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2537 special.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2538 It became indistinguishable to operating on any other message.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2539 .Ci 337338b404931f06f0db2119c9e145e8ca5a9860
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2540 .P
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2541 There is no more need to query the user for draft handling
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2542 .Ci 2d48b455c303a807041c35e4248955f8bec59eeb .
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2543 It is always possible to add another new draft.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2544 Refiling drafts is without difference to refiling other messages.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2545 All of these special cases are gone.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2546 Yet, one draft-related switch remained.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2547 .Pn comp
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2548 still has
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2549 .Sw -[no]use
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2550 for switching between two modes:
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2551 .LI 1
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2552 .Sw -use
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2553 to modify an existing draft.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2554 .LI 2
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2555 .Sw -nouse
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2556 to compose a new draft, possibly taking some existing message as template.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2557 .LP
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2558 In either case, the behavior of
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2559 .Pn comp
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2560 is deterministic.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2561 .P
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2562 .Pn send
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2563 now operates on the current message in the draft folder by default.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2564 As message and folder can both be overridden by specifying them on
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2565 the command line, it is possible to send any message in the mail storage
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2566 by simply specifying its number and folder.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2567 In contrast to the other tools,
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2568 .Pn send
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2569 takes the draft folder as its default folder.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2570 .P
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2571 Dropping the draft message concept in favor for the draft folder concept,
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2572 removed special cases with regular cases.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2573 This simplified the source code of the tools, as well as the concepts.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2574 In mmh, draft management does not break with the MH concepts
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2575 but applies them.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2576 .Cl "scan +drafts" ,
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2577 for instance, is a truly natural request.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	2578 Most of the work was already performed by Rose in the eighties.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2579 The original improvement of mmh is dropping the old draft message approach
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2580 and thus simplifying the tools, the documentation and the system as a whole.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2581 Although my part in the draft handling improvement was small,
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2582 it was an important one.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2583
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2584
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2585 .U3 "Trash Folder
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	2586 .Id trash-folder
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2587 .P
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2588 Similar to the situation for drafts is the situation for removed messages.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2589 Historically, a message was ``deleted'' by prepending a specific
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	2590 \fIbackup prefix\fP, usually the comma character,
4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	2591 to the file name.
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	2592 The specific file would then be ignored by MH because only files with
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	2593 names consisting of digits only are treated as messages.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2594 Although files remained in the file system,
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2595 the messages were no longer visible in MH.
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2596 To truly delete them, a maintenance job was needed.
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2597 Usually a cron job was installed to delete them after a grace time.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2598 For instance:
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2599 .VS
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2600 find $HOME/Mail -type f -name ',*' -ctime +7 -delete
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2601 VE
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2602 In such a setup, the original message could be restored
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2603 within the grace time interval by stripping the
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	2604 backup prefix from the file name.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2605 But the user could not rely on this statement.
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2606 If the last message of a folder with six messages (\fL1-6\fP) was removed,
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2607 message
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2608 .Fn 6 ,
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2609 became file
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2610 .Fn ,6 .
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2611 If then a new message entered the same folder, it would be named with
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2612 the number one above the highest existing message number.
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2613 In this case the message would be named
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2614 .Fn 6
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2615 then.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2616 If this new message would be removed as well,
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2617 then the backup of the former message is overwritten.
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2618 Hence, the ability to restore removed messages did not only depend on
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	2619 the sweeping cron job but also on the removing of further messages.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2620 It is undesirable to have such obscure and complex mechanisms.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2621 The user should be given a small set of clear assertions, such as
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2622 ``Removed files are restorable within a seven-day grace time.''
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2623 With the addition ``... unless a message with the same name in the
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2624 same folder is removed before.'' the statement becomes complex.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2625 A user will hardly be able to keep track of any removal to know
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2626 if the assertion still holds true for a specific file.
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	2627 In practice, the real mechanism is unclear to the user.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2628 The consequences of further removals are not obvious.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2629 .P
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	2630 Furthermore, the backup files are scattered within the whole mail storage.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2631 This complicates managing them.
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	2632 It is possible with the help of
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2633 .Pn find ,
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2634 but everything would be more convenient
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2635 if the deleted messages would be collected in one place.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2636 .P
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2637 The profile entry
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2638 .Pe rmmproc
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2639 (previously named
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2640 .Pe Delete-Prog )
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2641 was introduced very early to improve the situation.
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	2642 It could be set to any command, which would be executed to remove
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2643 the specified messages.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2644 This would override the default action described above.
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2645 Refiling the to-be-removed files to a trash folder is the usual example.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2646 Nmh's man page
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2647 .Mp rmm (1)
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2648 proposes to set the
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2649 .Pe rmmproc
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2650 to
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2651 .Cl "refile +d
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2652 to move messages to the trash folder,
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2653 .Fn +d ,
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2654 instead of renaming them with the backup prefix.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2655 The man page proposes additionally the expunge command
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2656 .Cl "rm `mhpath +d all`
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2657 to empty the trash folder.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2658 .P
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2659 Removing messages in such a way has advantages.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2660 The mail storage is prevented from being cluttered with removed messages
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2661 because they are all collected in one place.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2662 Existing and removed messages are thus separated more strictly.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2663 No backup files are silently overwritten.
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	2664 But most important is the ability to keep removed messages in the MH domain.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2665 Messages in the trash folder can be listed like those in any other folder.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2666 Deleted messages can be displayed like any other messages.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	2667 .Pn refile
f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	2668 can restore deleted messages.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2669 All operations on deleted files are still covered by the MH tools.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2670 The trash folder is just like any other folder in the mail storage.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2671 .P
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2672 Similar to the draft folder case, I dropped the old backup prefix approach
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2673 in favor for replacing it by the better suiting trash folder system.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2674 Hence,
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2675 .Pn rmm
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2676 calls
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2677 .Pn refile
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2678 to move the to-be-removed message to the trash folder,
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2679 .Fn +trash
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2680 by default.
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	2681 To sweep it clean, the user can use
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2682 .Cl "rmm -unlink +trash a" ,
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2683 where the
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2684 .Sw -unlink
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2685 switch causes the files to be unlinked.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2686 .Ci 8edc5aaf86f9f77124664f6801bc6c6cdf258173
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2687 .Ci ca0b3e830b86700d9e5e31b1784de2bdcaf58fc5
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2688 .P
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2689 Dropping the legacy approach and converting to the new approach completely
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2690 simplified the code base.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2691 The relationship between
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2692 .Pn rmm
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2693 and
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2694 .Pn refile
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2695 was inverted.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2696 In mmh,
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2697 .Pn rmm
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2698 invokes
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2699 .Pn refile ,
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2700 which used to be the other way round.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2701 Yet, the relationship is simpler now.
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	2702 Loops, like described in nmh's man page for
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2703 .Mp refile (1),
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	2704 can no longer occur:
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2705 .QS
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2706 Since
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2707 .Pn refile
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2708 uses your
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2709 .Pe rmmproc
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2710 to delete the message, the
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2711 .Pe rmmproc
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2712 must NOT call
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2713 .Pn refile
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2714 without specifying
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2715 .Sw -normmproc
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2716 or you will create an infinite loop.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2717 .QE
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2718 .LP
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2719 .Pn rmm
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2720 either unlinks a message with
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2721 .Fu unlink()
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2722 or invokes
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2723 .Pn refile
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2724 to move it to the trash folder.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2725 .Pn refile
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2726 does not invoke any tools.
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2727 .P
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2728 By generalizing the message removal in the way that it became covered
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2729 by the MH concepts made the whole system more powerful.
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2730
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2731
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2732
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2733
7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2734
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2735 .H2 "Modern Defaults
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2736 .P
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2737 Nmh has a bunch of convenience-improving features inactive by default,
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2738 although one can expect every new user wanting to have them active.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2739 The reason they are inactive by default is the wish to stay compatible
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2740 with old versions.
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2741 But what is the definition for old versions?
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2742 Still, the highly useful draft folder facility has not been activated
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2743 by default although it was introduced over twenty-five years ago.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2744 .[
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2745 rose romine real work
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2746 .]
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2747 The community seems not to care.
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2748 This is one of several examples that require new users to first build up
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2749 a profile before they can access the modern features of nmh.
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2750 Without an extensive profile, the setup is hardly usable
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2751 for modern emailing.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2752 The point is not the customization of the setup,
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2753 but the need to activate generally useful facilities.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2754 .P
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2755 Yet, the real problem lies less in enabling the features, as this is
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2756 straight forward as soon as one knows what he wants.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2757 The real problem is that new users need deep insight into the project
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2758 to find out about inactive features nmh already provides.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2759 To give an example, I needed one year of using nmh
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2760 before I became aware of the existence of the attachment system.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2761 One could argue that this fact disqualifies my reading of the
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2762 documentation.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2763 If I would have installed nmh from source back then, I could agree.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2764 Yet, I had used a prepackaged version and had expected that it would
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2765 just work.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2766 Nevertheless, I had been convinced by the concepts of MH already
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2767 and I am a software developer,
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2768 still I required a lot of time to discover the cool features.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2769 How can we expect users to be even more advanced than me,
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2770 just to allow them use MH in a convenient and modern way?
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2771 Unless they are strongly convinced of the concepts, they will fail.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2772 I have seen friends of me giving up disappointed
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2773 before they truly used the system,
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2774 although they had been motivated in the beginning.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	2775 They suffer hard enough to get used to the tool chest approach,
179 b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	2776 we developers should spare them further inconveniences.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2777 .P
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2778 Maintaining compatibility for its own sake is bad,
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2779 because the code base collects more and more compatibility code.
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2780 Sticking to the compatiblity code means remaining limited;
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2781 whereas adjusting to the changes renders the compatibility unnecessary.
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2782 Keeping unused alternatives in the code is a bad choice as they likely
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2783 gather bugs, by not being well tested.
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2784 Also, the increased code size and the greater number of conditions
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2785 increase the maintenance costs.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2786 If any MH implementation would be the back-end of widespread
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2787 email clients with large user bases, compatibility would be more
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2788 important.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2789 Yet, it appears as if this is not the case.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2790 Hence, compatibility is hardly important for technical reasons.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2791 Its importance originates rather from personal reasons.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2792 Nmh's user base is small and old.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2793 Changing the interfaces would cause inconvenience to long-term users of MH.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2794 It would force them to change their many years old MH configurations.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2795 I do understand this aspect, but by sticking to the old users,
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2796 new users are kept away.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2797 Yet, the future lies in new users.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2798 In consequence, mmh invites new users by providing a convenient
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2799 and modern setup, readily usable out-of-the-box.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2800 .P
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2801 In mmh, all modern features are active by default and many previous
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2802 approaches are removed or only accessible in manual ways.
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2803 New default features include:
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2804 .BU
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2805 The attachment system (\c
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2806 .Hd Attach ).
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2807 .Ci 8ff284ff9167eff8f5349481529332d59ed913b1
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2808 .BU
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2809 The draft folder facility (\c
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2810 .Fn +drafts ).
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2811 .Ci 337338b404931f06f0db2119c9e145e8ca5a9860
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2812 .BU
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2813 The unseen sequence (`u')
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2814 .Ci c2360569e1d8d3678e294eb7c1354cb8bf7501c1
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2815 and the sequence negation prefix (`!').
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2816 .Ci db74c2bd004b2dc9bf8086a6d8bf773ac051f3cc
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2817 .BU
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2818 Quoting the original message in the reply.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2819 .Ci 67411b1f95d6ec987b4c732459e1ba8a8ac192c6
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2820 .BU
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2821 Forwarding messages using MIME.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2822 .Ci 6e271608b7b9c23771523f88d23a4d3593010cf1
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	2823 .LP
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2824 In consequence, a setup with a profile that defines only the path to the
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2825 mail storage, is already convenient to use.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2826 Again, Paul Vixie's ``edginess'' call supports the direction I took:
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2827 ``the `main branch' should just be modern''.
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2828 .[
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2829 paul vixie edginess nmh-workers
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2830 .]
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2831
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2832
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2833
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2834
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2835
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2836 .\" --------------------------------------------------------------
131 7c741bc8f719 Reorganized: Converted 4-parted discussion into 3-parted discussion. markus schnalke <meillo@marmaro.de> parents: 130 diff changeset	2837 .H1 "Styling
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	2838 .P
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2839 Kernighan and Pike have emphasized the importance of style in the
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2840 preface of their book:
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2841 .[ [
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2842 kernighan pike practice of programming
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2843 .], p. x]
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2844 .QS
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2845 Chapter 1 discusses programming style.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2846 Good style is so important to good programming that we have chose
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2847 to cover it first.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2848 .QE
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2849 This section covers changes in mmh that were guided by the desire
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2850 to improve on style.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2851 Many of them follow the rules given in the quoted book.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2852 .[
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2853 kernighan pike practice of programming
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2854 .]
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2855
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2856
127 4a9a97d9d6b5 Exchanged the section titles `Style' and `Code Style'. markus schnalke <meillo@marmaro.de> parents: 126 diff changeset	2857
4a9a97d9d6b5 Exchanged the section titles `Style' and `Code Style'. markus schnalke <meillo@marmaro.de> parents: 126 diff changeset	2858
4a9a97d9d6b5 Exchanged the section titles `Style' and `Code Style'. markus schnalke <meillo@marmaro.de> parents: 126 diff changeset	2859 .H2 "Code Style
154 63e885fb48ba Converted some internal references to the new macros. markus schnalke <meillo@marmaro.de> parents: 145 diff changeset	2860 .Id code-style
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2861 .P
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2862 .U3 "Indentation Style
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2863 .P
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2864 Indentation styles are the holy cow of programmers.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2865 Kernighan and Pike
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2866 .[ [
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2867 kernighan pike practice of programming
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2868 .], p. 10]
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	2869 wrote:
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2870 .QS
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2871 Programmers have always argued about the layout of programs,
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2872 but the specific style is much less important than its consistent
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2873 application.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	2874 Pick one style, preferably ours, use it consistently, and don't waste
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2875 time arguing.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2876 .QE
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2877 .P
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2878 I agree that the constant application is most important,
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2879 but I believe that some styles have advantages over others.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2880 For instance the indentation with tab characters only.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2881 Tab characters directly map to the nesting level \(en
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2882 one tab, one level.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2883 Tab characters are flexible because developers can adjust them to
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2884 whatever width they like to have.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2885 There is no more need to run
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2886 .Pn unexpand
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2887 or
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2888 .Pn entab
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2889 programs to ensure the correct mixture of leading tabs and spaces.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2890 The simple rules are: (1) Leading whitespace must consist of tabs only.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2891 (2) Any other whitespace should consist of spaces.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	2892 These two rules ensure the integrity of the visual appearance.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	2893 Although reformatting existing code should be avoided, I did it.
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2894 I did not waste time arguing; I just reformated the code.
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2895 .Ci a485ed478abbd599d8c9aab48934e7a26733ecb1
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2896
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2897 .U3 "Comments
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2898 .P
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2899 Section 1.6 of
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2900 .[ [
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2901 kernighan pike practice of programming
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2902 .], p. 23]
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2903 demands: ``Don't belabor the obvious.''
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	2904 Hence, I simply removed all the comments in the following code excerpt:
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2905 .VS
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2906 context_replace(curfolder, folder); /* update current folder */
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2907 seq_setcur(mp, mp->lowsel); /* update current message */
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2908 seq_save(mp); /* synchronize message sequences */
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2909 folder_free(mp); /* free folder/message structure */
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2910 context_save(); /* save the context file */
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2911
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2912 [...]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2913
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2914 int c; /* current character */
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2915 char cp; / miscellaneous character pointer */
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2916
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2917 [...]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2918
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2919 /* NUL-terminate the field */
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2920 *cp = '\0';
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2921 VE
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	2922 .Ci 426543622b377fc5d091455cba685e114b6df674
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2923 .P
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2924 The program code explains enough itself, already.
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	2925
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2926
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2927 .U3 "Names
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2928 .P
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2929 Kernighan and Pike suggest:
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2930 ``Use active names for functions''.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2931 .[ [
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2932 kernighan pike practice of programming
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2933 .], p. 4]
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2934 One application of this rule was the rename of
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2935 .Fu check_charset()
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2936 to
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2937 .Fu is_native_charset() .
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2938 .Ci 8d77b48284c58c135a6b2787e721597346ab056d
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	2939 The same change fixed a violation of ``Be accurate''
eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	2940 .[ [
eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	2941 kernighan pike practice of programming
eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	2942 .], p. 4]
eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	2943 as well.
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2944 The code did not match the expectation the function suggested,
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2945 as it, for whatever reason, only compared the first ten characters
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2946 of the charset name.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2947 .P
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2948 More important than using active names is using descriptive names.
145 3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	2949 .VS
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	2950 m_unknown(in); /* the MAGIC invocation... */
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	2951 VE
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	2952 Renaming the obscure
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2953 .Fu m_unknown()
145 3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	2954 function was a delightful event, although it made the code less funny.
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2955 .Ci 611d68d19204d7cbf5bd585391249cb5bafca846
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2956 .P
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2957 Magic numbers are generally considered bad style.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2958 Obviously, Kernighan and Pike agree:
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2959 ``Give names to magic numbers''.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2960 .[ [
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2961 kernighan pike practice of programming
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2962 .], p. 19]
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2963 One such change was naming the type of input \(en mbox or mail folder \(en
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2964 to be scanned:
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2965 .VS
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2966 #define SCN_MBOX (-1)
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2967 #define SCN_FOLD 0
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2968 VE
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2969 .Ci 7ffb36d28e517a6f3a10272056fc127592ab1c19
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2970 .P
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2971 The argument
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2972 .Ar outnum
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2973 of the function
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2974 .Fu scan()
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2975 in
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2976 .Fn uip/scansbr.c
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2977 defines the number of the message to be created.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2978 If no message is to be created, the argument is misused to transport
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2979 program logic.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2980 This lead to obscure code.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2981 I improved the clarity of the code by introducing two variables:
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2982 .VS
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2983 int incing = (outnum > 0);
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2984 int ismbox = (outnum != 0);
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2985 VE
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2986 They cover the magic values and are used for conditions.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2987 The variable
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2988 .Ar outnum
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2989 is only used when it holds an ordinary message number.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2990 .Ci b8b075c77be7794f3ae9ff0e8cedb12b48fd139f
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2991 The clarity improvement of the change showed detours in the program logic
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2992 of related code parts.
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2993 Having the new variables with descriptive names, a more
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	2994 straight forward implementation became apparent.
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	2995 Before the code was clarified, the possibility to improve had not be seen.
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2996 .Ci aa60b0ab5e804f8befa890c0a6df0e3143ce0723
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	2997
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2998
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	2999
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3000 .H2 "Structural Rework
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3001 .P
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	3002 Although the stylistic changes described up to here improve the
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	3003 readability of the source code, all of them are changes ``in the small''.
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	3004 Structural changes affect a much larger area.
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	3005 They are more difficult to do but lead to larger improvements,
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	3006 especially as they influence the outer shape of the tools as well.
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	3007 .P
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	3008 At the end of their chapter on style,
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	3009 Kernighan and Pike ask: ``But why worry about style?''
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	3010 .[ [
eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	3011 kernighan pike practice of programming
eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	3012 .], p. 28]
136 470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	3013 Following are two examples of structural rework that show
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	3014 why style is important in the first place.
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	3015
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	3016
470d5db0c06c Minor rework. markus schnalke <meillo@marmaro.de> parents: 134 diff changeset	3017 .U3 "Rework of \f(CWanno\fP
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3018 .P
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3019 Until 2002,
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	3020 .Pn anno
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3021 had six functional command line switches,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3022 .Sw -component
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3023 and
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3024 .Sw -text ,
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	3025 which have an argument each,
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3026 and the two pairs of flags,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3027 .Sw -[no]date
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3028 and
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3029 .Sw -[no]inplace .
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3030 Then Jon Steinhart introduced his attachment system.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3031 In need for more advanced annotation handling, he extended
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3032 .Pn anno .
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3033 He added five more switches:
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3034 .Sw -draft ,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3035 .Sw -list ,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3036 .Sw -delete ,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3037 .Sw -append ,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3038 and
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3039 .Sw -number ,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3040 the last one taking an argument.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3041 .Ci 7480dbc14bc90f2d872d434205c0784704213252
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3042 Later,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3043 .Sw -[no]preserve
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3044 was added.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3045 .Ci d9b1d57351d104d7ec1a5621f090657dcce8cb7f
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3046 Then, the Synopsis section of the man page
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3047 .Mp anno (1)
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3048 read:
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3049 .VS
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3050 anno [+folder] [msgs] [-component field] [-inplace \| -noinplace]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3051 [-date \| -nodate] [-draft] [-append] [-list] [-delete]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3052 [-number [num\|all]] [-preserve \| -nopreserve] [-version]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3053 [-help] [-text body]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3054 VE
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3055 .LP
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3056 The implementation followed the same structure.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3057 Problems became visible when
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3058 .Cl "anno -list -number 42
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3059 worked on the current message instead on message number 42,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3060 and
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3061 .Cl "anno -list -number l:5
124 3d30fd938aa9 Spellchecking. markus schnalke <meillo@marmaro.de> parents: 123 diff changeset	3062 did not work on the last five messages but failed with the mysterious
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3063 error message: ``anno: missing argument to -list''.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3064 Yet, the invocation matched the specification in the man page.
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3065 There, the correct use of
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3066 .Sw -number
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3067 was defined as being
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3068 .Cl "[-number [num\|all]]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3069 and the textual description for the combination with
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3070 .Sw -list
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3071 read:
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3072 .QS
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3073 The
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3074 .Sw -list
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3075 option produces a listing of the field bodies for
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3076 header fields with names matching the specified component,
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3077 one per line. The listing is numbered, starting at 1, if the
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3078 .Sw -number
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3079 option is also used.
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3080 .QE
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3081 .LP
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3082 The problem was manifold.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3083 The code required a numeric argument to the
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3084 .Sw -number
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3085 switch.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3086 If it was missing or non-numeric,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3087 .Pn anno
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3088 aborted with an error message that had an off-by-one error,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3089 printing the switch one before the failing one.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3090 Semantically, the argument to the
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3091 .Sw -number
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3092 switch is only necessary in combination with
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3093 .Sw -delete ,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3094 but not with
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3095 .Sw -list .
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	3096 .P
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3097 Trying to fix these problems on the surface would not have solved
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3098 them truly, as they originate from a discrepance between the
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3099 structure of the problem and the structure implemented in the program.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3100 Such structural differences can not be cured on the surface.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3101 They need to be solved by adjusting the structure of the implementation
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3102 to the structure of the problem.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3103 .P
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3104 In 2002, the new switches
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3105 .Sw -list
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3106 and
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3107 .Sw -delete
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3108 were added in the same way, the
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3109 .Sw -number
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3110 switch for instance had been added.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3111 Yet, they are of structural different type.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3112 Semantically,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3113 .Sw -list
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3114 and
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3115 .Sw -delete
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3116 introduce modes of operation.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3117 Historically,
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3118 .Pn anno
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3119 had only one operation mode: adding header fields.
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3120 With the extension it got two more modes:
731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3121 .\" XXX got
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3122 listing and deleting header fields.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3123 The structure of the code changes did not pay respect to this
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3124 fundamental change to
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3125 .Pn anno 's
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3126 behavior.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3127 Neither the implementation nor the documentation did clearly
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3128 define them as being exclusive modes of operation.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3129 Having identified the problem, I solved it by putting structure into
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3130 .Pn anno
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3131 and its documentation.
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3132 .Ci d54c8db8bdf01e8381890f7729bc0ef4a055ea11
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3133 .P
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	3134 The difference is visible in both the code and the documentation.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3135 The following code excerpt:
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3136 .VS
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3137 int delete = -2; /* delete header element if set */
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3138 int list = 0; /* list header elements if set */
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3139 [...]
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3140 case DELETESW: /* delete annotations */
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3141 delete = 0;
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3142 continue;
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3143 case LISTSW: /* produce a listing */
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3144 list = 1;
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3145 continue;
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3146 VE
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3147 .LP
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3148 was replaced by:
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3149 .VS
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3150 static enum { MODE_ADD, MODE_DEL, MODE_LIST } mode = MODE_ADD;
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3151 [...]
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3152 case DELETESW: /* delete annotations */
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3153 mode = MODE_DEL;
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3154 continue;
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3155 case LISTSW: /* produce a listing */
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3156 mode = MODE_LIST;
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3157 continue;
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3158 VE
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3159 .LP
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3160 The replacement code does not only reflect the problem's structure better,
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3161 it is easier to understand as well.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3162 The same applies to the documentation.
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3163 The man page was completely reorganized to propagate the same structure.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3164 This is visible in the Synopsis section:
120 e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3165 .VS
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3166 anno [+folder] [msgs] [-component field] [-text body]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3167 [-append] [-date \| -nodate] [-preserve \| -nopreserve]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3168 [-Version] [-help]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3169
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3170 anno -delete [+folder] [msgs] [-component field] [-text
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3171 body] [-number num \| all ] [-preserve \| -nopreserve]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3172 [-Version] [-help]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3173
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3174 anno -list [+folder] [msgs] [-component field] [-number]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3175 [-Version] [-help]
e49780100ffb Wrote about the rework of anno(1). markus schnalke <meillo@marmaro.de> parents: 118 diff changeset	3176 VE
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3177 .\" XXX think about explaining the -preserve rework?
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	3178
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	3179
0 dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	3180
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3181 .U3 "Path Conversion
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3182 .P
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3183 Four kinds of path names can appear in MH:
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3184 .LI 1
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3185 Absolute Unix directory paths, like
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3186 .Fn /etc/passwd .
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3187 .LI 2
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3188 Relative Unix directory paths, like
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3189 .Fn ./foo/bar .
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3190 .LI 3
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3191 Absolute MH folder paths, like
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3192 .Fn +friends/phil .
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3193 .LI 4
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3194 Relative MH folder paths, like
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3195 .Fn @subfolder .
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3196 .LP
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3197 The last type, relative MH folder paths, are hardly documented.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3198 Nonetheless, they are useful for large mail storages.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3199 The current mail folder is specified as `\c
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3200 .Fn @ ',
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3201 just like the current directory is specified as `\c
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3202 .Fn . '.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3203 .P
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3204 To allow MH tools to understand all four notations,
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3205 they need to convert between them.
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3206 .\" XXX between?
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3207 In nmh, these path name conversion functions were located in the files
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3208 .Fn sbr/path.c
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3209 (``return a pathname'') and
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3210 .Fn sbr/m_maildir.c
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3211 (``get the path for the mail directory'').
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3212 The seven functions in the two files were documented with no more
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3213 than two comments, which described obvious information.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3214 The function signatures were neither explaining:
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3215 .VS
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3216 char path(char , int);
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3217 char pluspath(char );
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3218 char m_mailpath(char );
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3219 char m_maildir(char );
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3220 VE
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3221 .P
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3222 My investigation provides the following description:
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3223 .LI 1
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3224 The second parameter of
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3225 .Fu path()
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3226 defines the type of path given as first parameter.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3227 Directory paths are converted to absolute directory paths.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3228 Folder paths are converted to absolute folder paths.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	3229 Folder paths must not include a leading `\fL@\fP' character.
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3230 Leading plus characters are preserved.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3231 The result is a pointer to newly allocated memory.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3232 .LI 2
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3233 .Fu pluspath()
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3234 is a convenience-wrapper to
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3235 .Fu path() ,
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3236 to convert folder paths only.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3237 This function can not be used for directory paths.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3238 An empty string parameter causes a buffer overflow.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3239 .LI 3
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3240 .Fu m_mailpath()
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3241 converts directory paths to absolute directory paths.
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	3242 The characters `\fL+\fP' or `\fL@\fP' at the beginning of the path name are
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3243 treated literal, i.e. as the first character of a relative directory path.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3244 Hence, this function can not be used for folder paths.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3245 In any case, the result is an absolute directory path.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3246 The result is a pointer to newly allocated memory.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3247 .LI 4
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3248 .Fu m_maildir()
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3249 returns the parameter unchanged if it is an absolute directory path
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	3250 or begins with the entry `\fL.\fP' or `\fL..\fP'.
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3251 All other strings are prepended with the current working directory.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3252 Hence, this functions can not be used for folder paths.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3253 The result is either an absolute directory path or a relative
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3254 directory path, starting with a dot.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3255 In contrast to the other functions, the result is a pointer to
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3256 static memory.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3257 .P
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3258 The situation was obscure, irritating, error-prone, and non-orthogonal.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3259 No clear terminology was used to name the different kinds of path names.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3260 The first argument of
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3261 .Fu m_mailpath() ,
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3262 for instance, was named
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3263 .Ar folder ,
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3264 though
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3265 .Fu m_mailpath()
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3266 can not be used for MH folders.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3267 .P
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3268 I reworked the path name conversion completely, introducing clarity.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3269 First of all, the terminology needed to be defined.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3270 A path name is either in the Unix domain, then it is called
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3271 \fIdirectory path\fP, `dirpath' for short, or it is in the MH domain,
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3272 then it is called \fIfolder path\fP, `folpath' for short.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3273 The two terms need to be used with strict distinction.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3274 Having a clear terminology is often an indicator of having understood
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3275 the problem itself.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3276 Second, I exploited the concept of path type indicators.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3277 By requesting every path name to start with a clear type identifier,
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3278 conversion between the types can be fully automated.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3279 Thus the tools can accept paths of any type from the user.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3280 Therefore, it was necessary to require relative directory paths to be
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3281 prefixed with a dot character.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3282 In consequence, the dot character could no longer be an alias for the
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3283 current message.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3284 .Ci cff0e16925e7edbd25b8b9d6d4fbdf03e0e60c01
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3285 Third, I created three new functions to replace the previous mess:
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3286 .LI 1
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3287 .Fu expandfol()
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3288 converts folder paths to absolute folder paths,
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3289 without the leading plus character.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3290 Directory paths are simply passed through.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3291 This function is to be used for folder paths only, thus the name.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3292 The result is a pointer to static memory.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3293 .LI 2
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3294 .Fu expanddir()
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3295 converts directory paths to absolute directory paths.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3296 Folder paths are treated as relative directory paths.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3297 This function is to be used for directory paths only, thus the name.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3298 The result is a pointer to static memory.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3299 .LI 3
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3300 .Fu toabsdir()
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3301 converts any type of path to an absolute directory path.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3302 This is the function of choice for path conversion.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3303 Absolute directory paths are the most general representation of a
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3304 path name.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3305 The result is a pointer to static memory.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3306 .P
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3307 .\" XXX ueberfluessig?
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3308 The new functions have names that indicate their use.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3309 Two of the functions convert relative to absolute path names of the
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3310 same type.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3311 The third function converts any path name type to the most general one,
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3312 the absolute directory path.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3313 All of the functions return pointers to static memory.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3314 All three functions are implemented in
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3315 .Fn sbr/path.c .
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3316 .Fn sbr/m_maildir.c
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3317 is removed.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	3318 .Ci d39e2c447b0d163a5a63f480b23d06edb7a73aa0
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3319 .P
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3320 Along with the path conversion rework, I also replaced
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3321 .Fu getfolder(FDEF)
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3322 with
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3323 .Fu getdeffol()
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3324 and
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3325 .Fu getfolder(FCUR)
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3326 with
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3327 .Fu getcurfol() ,
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3328 which is only a convenience wrapper for
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3329 .Fu expandfol("@") .
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3330 This code was moved from
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3331 .Fn sbr/getfolder.c
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3332 to
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3333 .Fn sbr/path.c .
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	3334 .Ci d39e2c447b0d163a5a63f480b23d06edb7a73aa0
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3335 .P
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3336 The related function
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3337 .Fu etcpath()
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3338 was moved to
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3339 .Fn sbr/path.c ,
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	3340 too
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	3341 .Ci b4c29794c12099556151d93a860ee51badae2e35 .
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3342 Previously, it had been located in
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3343 .Fn config/config.c ,
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3344 for whatever reasons.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3345 .P
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3346 .Fn sbr/path.c
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3347 now contains all path handling code.
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3348 .\" XXX naechste zeile weg?
134 edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3349 Only 173 lines of code were needed to replace the previous 252 lines.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3350 The readability of the code is highly improved.
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3351 Additionally, each of the six exported and one static functions
edf46861132b Wrote about path conversion; Dropped the idea to write about scan listings markus schnalke <meillo@marmaro.de> parents: 133 diff changeset	3352 is introduced by an explaining comment.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3353
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3354
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3355
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3356
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3357 .H2 "Profile Reading
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3358 .P
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3359 The MH profile contains the configuration for the user-specific MH setup.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3360 MH tools read the profile right after starting up,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3361 as it contains the location of the user's mail storage
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3362 and similar settings that influence the whole setup.
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	3363 Furthermore, the profile contains the default switches for the tools,
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3364 hence, it must be read before the command line switches are processed.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3365 .P
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3366 For historic reasons, some MH tools did not read the profile and context.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3367 Among them were
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3368 .Pn post /\c
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3369 .Pn spost ,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3370 .Pn mhmail ,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3371 and
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3372 .Pn slocal .
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3373 The reason why these tools ignored the profile were not clearly stated.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3374 During the discussion on the nmh-workers mailing list,
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	3375 David Levine posted an explanation, quoting John Romine:
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3376 .[
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3377 nmh-workers levine post profile
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3378 .]
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3379 .QS
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3380 I asked John Romine and here's what he had to say, which
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3381 agrees and provides an example that convinces me:
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3382 .QS
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3383 My take on this is that
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3384 .Pn post
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3385 should not be called by users directly, and it doesn't read the
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3386 .Fn .mh_profile
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3387 (only front-end UI programs read the profile).
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3388 .QP
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3389 For example, there can be contexts where
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3390 .Pn post
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3391 is called by a helper program (like `\c
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3392 .Pn mhmail ')
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3393 which may be run by a non-MH user.
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3394 We don't want this to prompt the user to create an MH profile, etc.
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3395 .QP
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3396 My suggestion would be to have
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3397 .Pn send
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3398 pass a (hidden) `\c
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3399 .Sw -fileproc
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3400 .Ar proc '
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3401 option to
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3402 .Pn post
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3403 if needed.
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3404 You could also
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3405 use an environment variable (I think
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3406 .Pn send /\c
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3407 .Pn whatnow
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3408 do this).
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3409 .QE
164 5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3410 I think that's the way to go.
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3411 My personal preference is to use a command line option,
5c01017be420 Reacted to suggestions by Aaron Mueller. markus schnalke <meillo@marmaro.de> parents: 159 diff changeset	3412 not an environment variable.
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3413 .QE
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3414 .P
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3415 To solve the problem of
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3416 .Pn post
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3417 not honoring the
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3418 .Pe fileproc
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3419 profile entry,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3420 the community roughly agreed that a switch
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3421 .Sw -fileproc
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3422 should be added to
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3423 .Pn post
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3424 to be able to pass a different fileproc.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3425 I strongly disagree with this approach because it does not solve
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3426 the problem; it only removes a single symptom.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3427 The problem is that
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3428 .Pn post
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3429 does not behave as expected.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3430 But all programs should behave as expected.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3431 Clear and simple concepts are a precondition for this.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3432 Hence, the real solution is having all MH tools read the profile.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3433 .P
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3434 The problem has a further aspect.
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3435 It mainly originates in
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3436 .Pn mhmail .
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3437 .Pn mhmail
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3438 was intended to be a replacement for
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3439 .Pn mailx
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3440 on systems with MH installations.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3441 .Pn mhmail
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3442 should have been able to use just like
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3443 .Pn mailx ,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3444 but sending the message via MH's
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3445 .Pn post
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3446 instead of
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3447 .Pn sendmail .
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3448 Using
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3449 .Pn mhmail
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3450 should not be influenced by the question whether the user had
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3451 MH set up for himself or not.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3452 .Pn mhmail
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3453 did not read the profile as this requests the user to set up MH
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3454 if not done yet.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3455 As
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3456 .Pn mhmail
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3457 used
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3458 .Pn post ,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3459 .Pn post
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3460 could not read the profile neither.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3461 This is the reason why
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3462 .Pn post
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3463 does not read the profile.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3464 This is the reason for the actual problem.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3465 It was not much of a problem because
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3466 .Pn post
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3467 was not intended to be used by users directly.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3468 .Pn send
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3469 is the interactive front-end to
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3470 .Pn post .
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3471 .Pn send
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3472 read the profile and passed all relevant values on the command line to
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3473 .Pn post
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3474 \(en an awkward solution.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3475 .P
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3476 The important insight is that
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3477 .Pn mhmail
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3478 is no true MH tool.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3479 The concepts broke because this outlandish tool was treated as any other
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3480 MH tool.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3481 Instead it should have been treated accordingly to its foreign style.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3482 The solution is not to prevent the tools reading the profile but
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3483 to instruct them reading a different profile.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3484 .Pn mhmail
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3485 could have set up a well-defined profile and caused all MH tools
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3486 in the session to use it by exporting an environment variable.
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3487 With this approach, no special cases would have been introduced,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3488 no surprises would have been caused.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3489 By writing a clean-profile-wrapper, the concept could have been
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	3490 generalized orthogonally to the whole MH tool chest.
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3491 Then Rose's motivation behind the decision that
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3492 .Pn post
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3493 ignores the profile, as quoted by Jeffrey Honig,
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	3494 would have become possible:
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3495 .[
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3496 nmh-workers post profile
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3497 .]
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3498 .QS
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3499 when you run mh commands in a script, you want all the defaults to be
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3500 what the man page says.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3501 when you run a command by hand, then you want your own defaults...
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3502 .QE
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3503 .LP
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3504 Yet, I consider this explanation shortsighted.
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3505 We should rather regard theses two cases as just two different MH setups,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3506 based on two different profiles.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3507 Mapping such problems on the concepts of switching between different
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3508 profiles, solves them once for all.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3509 .P
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3510 In mmh, the wish to have
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3511 .Pn mhmail
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	3512 as a replacement for
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3513 .Pn mailx
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3514 is considered obsolete.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3515 Mmh's
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3516 .Pn mhmail
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3517 does no longer cover this use-case.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3518 Currently,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3519 .Pn mhmail
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3520 is in a transition state.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3521 .Ci 32d4f9daaa70519be3072479232ff7be0500d009
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3522 It may become a front-end to
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3523 .Pn comp ,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3524 which provides an interface more convenient in some cases.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3525 In this case,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3526 .Pn mhmail
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3527 will become an ordinary MH tool, reading the profile.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3528 If, however, this idea will not convince, then
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3529 .Pn mhmail
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3530 will be removed.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3531 .P
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	3532 Every program in the mmh tool chest reads the profile.
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3533 The only exception is
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3534 .Pn slocal ,
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	3535 which is not considered part of the mmh tool chest.
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3536 This MDA is only distributed with mmh, currently.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3537 Mmh has no
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3538 .Pn post
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3539 program, but
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3540 .Pn spost ,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3541 which now reads the profile.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3542 .Ci 3e017a7abbdf69bf0dff7a4073275961eda1ded8
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3543 With this change,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3544 .Pn send
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3545 and
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3546 .Pn spost
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3547 can be considered to be merged.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3548 .Pn spost
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	3549 is only invoked directly by the to-be-changed
138 cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3550 .Pn mhmail
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3551 implementation and by
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3552 .Pn rcvdist ,
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3553 which will require rework.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3554 .P
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3555 The
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3556 .Fu context_foil()
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3557 function to pretend to have read an empty profile was removed.
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3558 .Ci 68af8da96bea87a5541988870130b6209ce396f6
cc35686f359e Wrote about profile reading. markus schnalke <meillo@marmaro.de> parents: 136 diff changeset	3559 All mmh tools read the profile.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3560
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3561
127 4a9a97d9d6b5 Exchanged the section titles `Style' and `Code Style'. markus schnalke <meillo@marmaro.de> parents: 126 diff changeset	3562
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3563 .H2 "Standard Libraries
58 814c33b96d89 Restructured the content in ch03. markus schnalke <meillo@marmaro.de> parents: 51 diff changeset	3564 .P
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3565 MH is one decade older than the POSIX and ANSI C standards.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3566 Hence, MH included own implementations of functions
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3567 that are standardized and thus widely available today,
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3568 but were not back then.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3569 Today, twenty years after the POSIX and ANSI C were published,
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3570 developers can expect systems to comply with these standards.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3571 In consequence, MH-specific replacements for standard functions
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3572 can and should be dropped.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3573 Kernighan and Pike advise: ``Use standard libraries.''
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3574 .[ [
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3575 kernighan pike practice of programming
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3576 .], p. 196]
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3577 Actually, MH had followed this advice in history,
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3578 but it had not adjusted to the changes in this field.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3579 The
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3580 .Fu snprintf()
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3581 function, for instance, was standardized with C99 and is available
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3582 almost everywhere because of its high usefulness.
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3583 The project's own implementation of
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3584 .Fu snprintf()
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3585 was dropped in March 2012 in favor for using the one of the
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3586 standard library.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3587 .Ci 0052f1024deb0a0a2fc2e5bacf93d45a5a9c9b32
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3588 Such decisions limit the portability of mmh
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	3589 if systems do not support these standardized and widespread functions.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3590 This compromise is made because mmh focuses on the future.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3591 .P
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3592 .\" XXX kuerzen und mit dem naechsten Absatz vereinen
731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3593 I am still in my twenties and my C and Unix experience comprises
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3594 only half a dozen years.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3595 Hence, I need to learn about the history in retrospective.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3596 I have not used those ancient constructs myself.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3597 I have not suffered from their incompatibilities.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3598 I have not longed for standardization.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3599 All my programming experience is from a time when ANSI C and POSIX
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3600 were well established already.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3601 I have only read a lot of books about the (good) old times.
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3602 This puts me in a difficult position when working with old code.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3603 I need to freshly acquire knowledge about old code constructs and ancient
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3604 programming styles, whereas older programmers know these things by
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3605 heart from their own experience.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3606 .P
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3607 Being aware of the situation, I rather let people with more historic
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3608 experience replace ancient code constructs with standardized ones.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3609 Lyndon Nerenberg covered large parts of this task for the nmh project.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3610 He converted project-specific functions to POSIX replacements,
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3611 also removing the conditionals compilation of now standardized features.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3612 Ken Hornstein and David Levine had their part in the work, too.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3613 Often, I only needed to pull over changes from nmh into mmh.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3614 These changes include many commits; these are among them:
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3615 .Ci 768b5edd9623b7238e12ec8dfc409b82a1ed9e2d
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3616 .Ci 0052f1024deb0a0a2fc2e5bacf93d45a5a9c9b32 .
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	3617 .P
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3618 During my own work, I tidied up the \fIMH standard library\fP,
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3619 .Fn libmh.a ,
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3620 which is located in the
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3621 .Fn sbr
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3622 (``subroutines'') directory in the source tree.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3623 The MH library includes functions that mmh tools usually need.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3624 Among them are MH-specific functions for profile, context, sequence,
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3625 and folder handling, but as well
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3626 MH-independent functions, such as auxiliary string functions,
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3627 portability interfaces and error-checking wrappers for critical
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3628 functions of the standard library.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3629 .P
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3630 I have replaced the
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3631 .Fu atooi()
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3632 function with calls to
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3633 .Fu strtoul()
139 b7b81ae9c9d8 Removed and moved some paragraphs. markus schnalke <meillo@marmaro.de> parents: 138 diff changeset	3634 with the third parameter, the base, set to eight.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3635 .Fu strtoul()
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3636 is part of C89 and thus considered safe to use.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3637 .Ci c490c51b3c0f8871b6953bd0c74551404f840a74
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3638 .P
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3639 I did remove project-included fallback implementations of
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3640 .Fu memmove()
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3641 and
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3642 .Fu strerror() ,
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3643 although Peter Maydell had re-included them into nmh in 2008
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3644 to support SunOS 4.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3645 Nevertheless, these functions are part of ANSI C.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3646 Systems that do not even provide full ANSI C support should not
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3647 put a load on mmh.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3648 .Ci b067ff5c465a5d243ce5a19e562085a9a1a97215
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3649 .P
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3650 The
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3651 .Fu copy()
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3652 function copies the string in parameter one to the location in
731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3653 parameter two.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3654 In contrast to
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3655 .Fu strcpy() ,
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3656 it returns a pointer to the terminating null-byte in the destination area.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3657 The code was adjusted to replace
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3658 .Fu copy()
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3659 with
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3660 .Fu strcpy() ,
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3661 except within
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3662 .Fu concat() ,
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3663 where
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3664 .Fu copy()
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3665 was more convenient.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3666 Therefore, the definition of
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3667 .Fu copy()
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3668 was moved into the source file of
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3669 .Fu concat()
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3670 and its visibility is now limited to it.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3671 .Ci 552fd7253e5ee9e554c5c7a8248a6322aa4363bb
102 a782488c85f5 More text about attachments mainly, plus some rearrangements. markus schnalke <meillo@marmaro.de> parents: 101 diff changeset	3672 .P
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3673 The function
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3674 .Fu r1bindex()
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3675 had been a generalized version of
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3676 .Fu basename()
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3677 with minor differences.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3678 As all calls to
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3679 .Fu r1bindex()
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3680 had the slash (`/') as delimiter anyway,
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3681 replacing
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3682 .Fu r1bindex()
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3683 with the more specific and better-named function
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3684 .Fu basename()
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3685 became desirable.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3686 Unfortunately, many of the 54 calls to
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3687 .Fu r1bindex()
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3688 depended on a special behavior,
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3689 which differed from the POSIX specification for
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3690 .Fu basename() .
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3691 Hence,
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3692 .Fu r1bindex()
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3693 was kept but renamed to
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3694 .Fu mhbasename() ,
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3695 fixing the delimiter to the slash.
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3696 .Ci 240013872c392fe644bd4f79382d9f5314b4ea60
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3697 For possible uses of
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3698 .Fu r1bindex()
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3699 with a different delimiter,
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3700 the ANSI C function
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3701 .Fu strrchr()
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3702 provides the core functionality.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3703 .P
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3704 The
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3705 .Fu ssequal()
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3706 function \(en apparently for ``substring equal'' \(en
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3707 was renamed to
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3708 .Fu isprefix() ,
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3709 because this is what it actually checks.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3710 .Ci c20b4fa14515c7ab388ce35411d89a7a92300711
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3711 Its source file had included the following comments, no joke.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3712 .VS
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3713 /*
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3714 * THIS CODE DOES NOT WORK AS ADVERTISED.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3715 * It is actually checking if s1 is a PREFIX of s2.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3716 * All calls to this function need to be checked to see
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3717 * if that needs to be changed. Prefix checking is cheaper, so
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3718 * should be kept if it's sufficient.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3719 */
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3720
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3721 /*
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3722 * Check if s1 is a substring of s2.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3723 * If yes, then return 1, else return 0.
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3724 */
edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3725 VE
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3726 Two months later, it was completely removed by replacing it with
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3727 .Fu strncmp() .
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3728 .Ci b0b1dd37ff515578cf7cba51625189eb34a196cb
121 edbc6e1dc636 New text on Standard Libraries plus spellchecking. markus schnalke <meillo@marmaro.de> parents: 120 diff changeset	3729
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	3730
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	3731
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	3732
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3733
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3734 .H2 "User Data Locations
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3735 .P
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3736 In nmh, a personal setup consists of the MH profile and the MH directory.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3737 The profile is a file named
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3738 .Fn \&.mh_profile
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3739 in the user's home directory.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3740 It contains the static configuration.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3741 It also contains the location of the MH directory in the profile entry
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3742 .Pe Path .
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3743 The MH directory contains the mail storage and is the first
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3744 place to search for personal forms, scan formats, and similar
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3745 configuration files.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3746 The location of the MH directory can be chosen freely by the user.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3747 The default and usual name is a directory named
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3748 .Fn Mail
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3749 in the home directory.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3750 .P
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3751 The way MH data is splitted between profile and MH directory is a legacy.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3752 It is only sensible in a situation where the profile is the only
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3753 configuration file.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3754 Why else should the mail storage and the configuration files be intermixed?
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3755 They are different kinds of data:
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3756 The data to be operated on and the configuration to change how
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3757 tools operate.
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3758 .\" XXX bad ... inapropriate?
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3759 Splitting the configuration between the profile and the MH directory
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3760 is bad.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3761 Merging the mail storage and the configuration in one directory is bad
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3762 as well.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3763 As the mail storage and the configuration were not separated sensibly
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3764 in the first place, I did it now.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3765 .P
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3766 Personal mmh data is grouped by type, resulting in two distinct parts:
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3767 the mail storage and the configuration.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3768 In mmh, the mail storage directory still contains all the messages,
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3769 but, in exception of public sequences files, nothing else.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3770 In difference to nmh, the auxiliary configuration files are no longer
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3771 located there.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3772 Therefore, the directory is no longer called the user's \fIMH directory\fP
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3773 but his \fImail storage\fP.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3774 Its location is still user-chosen, with the default name
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3775 .Fn Mail ,
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3776 in the user's home directory.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3777 In mmh, the configuration is grouped together in
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3778 the hidden directory
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3779 .Fn \&.mmh
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3780 in the user's home directory.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3781 This \fImmh directory\fP contains the context file, personal forms,
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3782 scan formats, and the like, but also the user's profile, now named
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3783 .Fn profile .
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3784 The location of the profile is no longer fixed to
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3785 .Fn $HOME/.mh_profile
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3786 but to
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3787 .Fn $HOME/.mmh/profile .
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	3788 Having both the file
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3789 .Fn $HOME/.mh_profile
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3790 and the configuration directory
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3791 .Fn $HOME/.mmh
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3792 appeared to be inconsistent.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3793 The approach chosen for mmh is consistent, simple, and familiar to
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3794 Unix users.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	3795 .Ci 7030d7edb099bff36ded7548bb5380f7acab4f9b
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3796 .P
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	3797 MH allows users to have multiple MH setups.
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3798 Therefore, it is necessary to select a different profile.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3799 The profile is the single entry point to access the rest of a
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3800 personal MH setup.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3801 In nmh, the environment variable
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3802 .Ev MH
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3803 could be used to specifiy a different profile.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3804 To operate in the same MH setup with a separate context,
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3805 the
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3806 .Ev MHCONTEXT
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3807 environment variable could be used.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3808 This allows having own current folders and current messages in
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3809 each terminal, for instance.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3810 In mmh, three environment variables are used.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3811 .Ev MMH
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3812 overrides the default location of the mmh directory (\c
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3813 .Fn .mmh ).
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3814 .Ev MMHP
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3815 and
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3816 .Ev MMHC
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3817 override the paths to the profile and context files, respectively.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3818 This approach allows the set of personal configuration files to be chosen
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3819 independently from the profile, context, and mail storage.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	3820 .Ci 7030d7edb099bff36ded7548bb5380f7acab4f9b
133 02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3821 .P
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3822 The separation of the files by type is sensible and convenient.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3823 The new approach has no functional disadvantages,
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3824 as every setup I can imagine can be implemented with both approaches,
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3825 possibly even easier with the new approach.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3826 The main achievement of the change is the clear and sensible split
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3827 between mail storage and configuration.
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3828
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3829
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3830
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3831
02660c14f6a8 Further re-ordering of the sections. markus schnalke <meillo@marmaro.de> parents: 131 diff changeset	3832
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	3833 .H2 "Modularization
48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	3834 .P
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3835 The source code of the mmh tools is located in the
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3836 .Fn uip
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3837 (``user interface programs'') directory.
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3838 Each tool has a source file with the name of the command.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3839 For example,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3840 .Pn rmm
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3841 is built from
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3842 .Fn uip/rmm.c .
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3843 Some source files are used for multiple programs.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3844 For example
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3845 .Fn uip/scansbr.c
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	3846 is used for both
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3847 .Pn scan
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3848 and
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3849 .Pn inc .
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3850 In nmh, 49 tools were built from 76 source files.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3851 This is a ratio of 1.6 source files per program.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3852 32 programs depended on multiple source files;
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3853 17 programs depended on one source file only.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3854 In mmh, 39 tools are built from 51 source files.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3855 This is a ratio of 1.3 source files per program.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3856 18 programs depend on multiple source files;
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3857 21 programs depend on one source file only.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3858 (These numbers and the ones in the following text ignore the MH library
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3859 as well as shell scripts and multiple names for the same program.)
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3860 .\" XXX graph
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3861 .P
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3862 Splitting the source code of a large program into multiple files can
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3863 increase the readability of its source code.
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3864 .\" XXX however?
731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3865 Most of the mmh tools are simple and straight-forward programs.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3866 With the exception of the MIME handling tools,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3867 .Pn pick
179 b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	3868 is the largest tool.
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	3869 It contains 1\\|037 lines of source code, excluding the MH library.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3870 Only the MIME handling tools (\c
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3871 .Pn mhbuild ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3872 .Pn mhstore ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3873 .Pn show ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3874 etc.)
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3875 are larger.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3876 Splitting programs with less than 1\\|000 lines of code into multiple
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3877 source files seldom leads to better readability.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3878 For such tools, splitting makes sense
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3879 when parts of the code are reused in other programs,
179 b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	3880 and the reused code fragment is (1) not general enough
b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	3881 for including it in the MH library
b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	3882 or (2) has dependencies on a library that only few programs need.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3883 .Fn uip/packsbr.c ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3884 for instance, provides the core program logic for the
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3885 .Pn packf
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3886 and
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3887 .Pn rcvpack
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3888 programs.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3889 .Fn uip/packf.c
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3890 and
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3891 .Fn uip/rcvpack.c
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3892 mainly wrap the core function appropriately.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3893 No other tools use the folder packing functions.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3894 As another example,
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3895 .Fn uip/termsbr.c
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3896 provides termcap support, which requires linking with a termcap or
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3897 curses library.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3898 Including
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3899 .Fn uip/termsbr.c
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3900 into the MH library would require every program to be linked with
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3901 termcap or curses, although only few of the programs require it.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3902 .P
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3903 The task of MIME handling is complex enough that splitting its code
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3904 into multiple source files improves the readability.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3905 The program
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3906 .Pn mhstore ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3907 for instance, is compiled out of seven source files with 2\\|500
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3908 lines of code in summary.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3909 The main code file
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3910 .Fn uip/mhstore.c
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3911 consists of 800 lines; the other 1\\|700 lines of code are reused in
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3912 other MIME handling tools.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3913 It seems to be worthwhile to bundle the generic MIME handling code into
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3914 a MH-MIME library, as a companion to the MH standard library.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3915 This is left open for the future.
118 48e28eaee6f9 Wrote intro to Modernizing and new text about Code Style. markus schnalke <meillo@marmaro.de> parents: 116 diff changeset	3916 .P
169 f4ffe121a0a2 Applied excellent suggestions and corrections by Kate. markus schnalke <meillo@marmaro.de> parents: 168 diff changeset	3917 The work already accomplished focussed on the non-MIME tools.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3918 The amount of code compiled into each program was reduced.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3919 This eases the understanding of the code base.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3920 In nmh,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3921 .Pn comp
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3922 was built from six source files:
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3923 .Fn comp.c ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3924 .Fn whatnowproc.c ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3925 .Fn whatnowsbr.c ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3926 .Fn sendsbr.c ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3927 .Fn annosbr.c ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3928 and
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3929 .Fn distsbr.c .
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3930 In mmh, it builds from only two:
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3931 .Fn comp.c
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3932 and
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3933 .Fn whatnowproc.c .
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3934 In nmh's
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3935 .Pn comp ,
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3936 the core function of
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3937 .Pn whatnow ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3938 .Pn send ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3939 and
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3940 .Pn anno
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3941 were compiled into
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3942 .Pn comp .
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3943 This saved the need to execute these programs with
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3944 .Fu fork()
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3945 and
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3946 .Fu exec() ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3947 two expensive system calls.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3948 Whereas this approach improved the time performance,
346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3949 it interwove the source code.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3950 Core functionalities were not encapsulated into programs but into
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3951 function, which were then wrapped by programs.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3952 For example,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3953 .Fn uip/annosbr.c
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3954 included the function
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3955 .Fu annotate() .
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3956 Each program that wanted to annotate messages, included the source file
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3957 .Fn uip/annosbr.c
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3958 and called
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3959 .Fu annotate() .
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3960 Because the function
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3961 .Fu annotate()
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3962 was used like the tool
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3963 .Pn anno ,
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3964 it had seven parameters, reflecting the command line switches of the tool.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3965 When another pair of command line switches was added to
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3966 .Pn anno ,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3967 a rather ugly hack was implemented to avoid adding another parameter
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3968 to the function.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3969 .Ci d9b1d57351d104d7ec1a5621f090657dcce8cb7f
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3970 .P
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3971 Separation simplifies the understanding of program code
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3972 because the area influenced by any particular statement is smaller.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3973 The separating on the program-level is more strict than the separation
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3974 on the function level.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3975 In mmh, the relevant code of
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3976 .Pn comp
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3977 comprises the two files
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3978 .Fn uip/comp.c
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3979 and
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3980 .Fn uip/whatnowproc.c ,
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3981 together 210 lines of code.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3982 In nmh,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3983 .Pn comp
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3984 comprises six files with 2\\|450 lines.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3985 Not all of the code in these six files was actually used by
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3986 .Pn comp ,
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3987 but the code reader needed to read all of the code first to know which
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3988 parts were used.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3989 .P
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3990 As I have read a lot in the code base during the last two years,
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3991 I learned about the easy and the difficult parts.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3992 Code is easy to understand if the influenced code area is small
346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	3993 and its boundaries are strictly defined.
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	3994 Furthermore, the code needs to solve the problem in a straight-forward way.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3995 .P
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3996 .\" XXX move this paragraph somewhere else?
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	3997 Reading
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3998 .Pn rmm 's
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	3999 source code in
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4000 .Fn uip/rmm.c
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4001 is my recommendation for a beginner's entry point into the code base of nmh.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4002 The reasons are that the task of
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4003 .Pn rmm
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4004 is straight forward and it consists of one small source code file only,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4005 yet its source includes code constructs typical for MH tools.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4006 With the introduction of the trash folder in mmh,
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4007 .Pn rmm
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4008 became a bit more complex, because it invokes
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4009 .Pn refile .
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4010 Still, it is a good example for a simple tool with clear sources.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4011 .P
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4012 Understanding
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4013 .Pn comp
180 731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	4014 .\" XXX kate fragen: more vs. as much
731e747a805b Applied corrections by Lydi. markus schnalke <meillo@marmaro.de> parents: 179 diff changeset	4015 requires to read 210 lines of code in mmh, but ten times more in nmh.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4016 Due to the aforementioned hack in
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4017 .Pn anno
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4018 to save the additional parameter, information passed through the program's
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4019 source base in obscure ways.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4020 Thus, understanding
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4021 .Pn comp ,
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4022 required understanding the inner workings of
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4023 .Fn uip/annosbr.c
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4024 first.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4025 To be sure to fully understand a program, its whole source code needs
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4026 to be examined.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4027 Not doing so is a leap of faith, assuming that the developers
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4028 have avoided obscure programming techniques.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4029 By separating the tools on the program-level, the boundaries are
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4030 clearly visible and technically enforced.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4031 The interfaces are calls to
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4032 .Fu exec()
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4033 rather than arbitrary function calls.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4034 .P
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4035 But the real problem is another:
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4036 Nmh violates the golden ``one tool, one job'' rule of the Unix philosophy.
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	4037 .\" XXX ref
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4038 Understanding
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4039 .Pn comp
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4040 requires understanding
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4041 .Fn uip/annosbr.c
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4042 and
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4043 .Fn uip/sendsbr.c
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4044 because
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4045 .Pn comp
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4046 does annotate and send messages.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4047 In nmh, there surely exists the tool
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4048 .Pn send ,
179 b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	4049 which does mainly send messages.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4050 But
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4051 .Pn comp
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4052 and
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4053 .Pn repl
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4054 and
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4055 .Pn forw
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4056 and
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4057 .Pn dist
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4058 and
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4059 .Pn whatnow
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4060 and
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4061 .Pn viamail ,
179 b59201e345e5 Applied further corrections by Aaron. markus schnalke <meillo@marmaro.de> parents: 178 diff changeset	4062 they all (!) have the same message sending function included, as well.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4063 In result,
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4064 .Pn comp
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4065 sends messages without using
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4066 .Pn send .
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4067 The situation is the same as if
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4068 .Pn grep
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4069 would page without
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4070 .Pn more
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4071 just because both programs are part of the same code base.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4072 .P
173 4c7db172fb59 Various corrections and improvements. markus schnalke <meillo@marmaro.de> parents: 171 diff changeset	4073 The clear separation on the surface \(en the tool chest approach \(en
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4074 is violated on the level below.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4075 This violation is for the sake of time performance.
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4076 On systems where
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4077 .Fu fork()
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4078 and
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4079 .Fu exec()
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4080 are expensive, the quicker response might be noticable.
124 3d30fd938aa9 Spellchecking. markus schnalke <meillo@marmaro.de> parents: 123 diff changeset	4081 In the old times, sacrificing readability and conceptional beauty for
3d30fd938aa9 Spellchecking. markus schnalke <meillo@marmaro.de> parents: 123 diff changeset	4082 speed might even have been a must to prevent MH from being unusably slow.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4083 Whatever the reasons had been, today they are gone.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4084 No longer should we sacrifice readability or conceptional beauty.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4085 No longer should we violate the Unix philosophy's ``one tool, one job''
c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4086 guideline.
181 eb6eeb10afd5 Various stuff: Checked quotes, s/further more/furthermore/, etc markus schnalke <meillo@marmaro.de> parents: 180 diff changeset	4087 .\" XXX ref
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4088 No longer should we keep speed improvements that became unnecessary.
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4089 .P
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4090 Therefore, mmh's
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4091 .Pn comp
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4092 does no longer send messages.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4093 In mmh, different jobs are divided among separate programs that
122 c234656329e0 Wrote about modularization. markus schnalke <meillo@marmaro.de> parents: 121 diff changeset	4094 invoke each other as needed.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4095 In consequence,
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4096 .Pn comp
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4097 invokes
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4098 .Pn whatnow
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4099 which thereafter invokes
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4100 .Pn send .
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	4101 .Ci 3df5ab3c116e6d4a2fb4bb5cc9dfc5f781825815
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	4102 .Ci c73c00bfccd22ec77e9593f47462aeca4a8cd9c0
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4103 The clear separation on the surface is maintained on the level below.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4104 Human users and the tools use the same interface \(en
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4105 annotations, for example, are made by invoking
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4106 .Pn anno ,
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4107 no matter if requested by programs or by human beings.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	4108 .Ci 469a4163c2a1a43731d412eaa5d9cae7d670c48b
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	4109 .Ci aed384169af5204b8002d06e7a22f89197963d2d
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	4110 .Ci 3caf9e298a8861729ca8b8a84f57022b6f3ea742
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4111 The decrease of tools built from multiple source files and thus
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4112 the decrease of
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4113 .Fn uip/*sbr.c
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4114 files confirm the improvement.
168 277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	4115 .Ci 9e6d91313f01c96b4058d6bf419a8ca9a207bc33
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	4116 .ci 81744a46ac9f845d6c2b9908074d269275178d2e
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	4117 .Ci f0f858069d21111f0dbea510044593f89c9b0829
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	4118 .Ci 0503a6e9be34f24858b55b555a5c948182b9f24b
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	4119 .Ci 27826f9353e0f0b04590b7d0f8f83e60462b90f0
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	4120 .Ci d1da1f94ce62160aebb30df4063ccbc53768656b
277eeb5ba223 Applied suggestions by Lydi. markus schnalke <meillo@marmaro.de> parents: 166 diff changeset	4121 .Ci c42222869e318fff5dec395eca3e776db3075455
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4122 .P
145 3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4123 .\" XXX move this paragraph up somewhere
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4124 One disadvantage needs to be taken with this change:
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4125 The compiler can no longer check the integrity of the interfaces.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4126 By changing the command line interfaces of tools, it is
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4127 the developer's job to adjust the invocations of these tools as well.
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4128 As this is a manual task and regression tests, which could detect such
124 3d30fd938aa9 Spellchecking. markus schnalke <meillo@marmaro.de> parents: 123 diff changeset	4129 problems, are not available yet, it is prone to errors.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4130 These errors will not be detected at compile time but at run time.
171 346ff7e201f5 Applied suggestions by Boris. markus schnalke <meillo@marmaro.de> parents: 169 diff changeset	4131 Installing regression tests is a pending task.
123 740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4132 In the best case, a uniform way of invoking tools from other tools
740f4128dea7 Reworked and extended the text about Modularization. markus schnalke <meillo@marmaro.de> parents: 122 diff changeset	4133 can be developed to allow automated testing at compile time.
145 3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4134
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4135
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4136 .ig
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4137 XXX consider writing about mhl vs. mhlproc
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4138
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4139 sbr/showfile.c
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4140
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4141 23 /*
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4142 24 ** If you have your lproc listed as "mhl",
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4143 25 ** then really invoked the mhlproc instead
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4144 26 ** (which is usually mhl anyway).
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4145 27 */
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4146
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4147 Sat Nov 24 19:09:14 1984 /mtr (agent: Marshall Rose) <uci@udel-dewey>
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4148
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4149 sbr/showfile.c: if lproc is "mhl", use mhlproc for consistency
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4150 (Actually, user should use "lproc: show", "showproc: mhl".)
3361e53dfcd6 Added comments and a source quote. markus schnalke <meillo@marmaro.de> parents: 139 diff changeset	4151 ..

Mercurial > docs > master

annotate discussion.roff @ 183:4c5055a0e981