docs/master: ch03.roff annotate

annotate ch03.roff @ 55:89e7a32d1f10

bib: Added yet missing refs.

author	markus schnalke <meillo@marmaro.de>
date	Sun, 20 May 2012 21:46:00 +0200
parents	49cf68506b5d
children	814c33b96d89

rev	line source
0 dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	1 .H0 "Work Report
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	2 .P
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	3 foo
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	4 .P
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	5 bar
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	6
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	7 .H1 "Removal of Code Relicts
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	8 .P
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	9 The code base of mmh originates from the late Seventies,
49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	10 had been extensively
49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	11 worked on in the mid Eighties, and had been partly reorganized and extended
49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	12 in the Nineties. Relicts of all those times had gathered in the code base.
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	13 My goal was to remove any ancient code parts. One part of the task was
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	14 converting obsolete code constructs to standard constructs, the other part
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	15 was dropping obsolete functions.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	16 .P
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	17 As I'm not even thirty years old and have no more than seven years of
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	18 Unix experience, I needed to learn about the history in retrospective.
49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	19 Older people likely have used those ancient constructs themselves
49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	20 and have suffered from their incompatibilities and have longed for
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	21 standardization. Unfortunately, I have only read that others had done so.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	22 This put me in a much more difficult positions when working on the old
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	23 code. I needed to recherche what other would have known by heart from
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	24 experience. All my programming experience comes from a time past ANSI C
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	25 and past POSIX. Although I knew about the times before, I took the
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	26 current state implicitly for granted most of the time.
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	27 .P
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	28 Being aware of
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	29 these facts, I rather let people with more historic experience solve the
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	30 task of converting the ancient code constructs to standardized ones.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	31 Luckily, Lyndon Nerenberg focused on this task at the nmh project.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	32 He converted large parts of the code to POSIX constructs, removing
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	33 the conditionals compilation for now standardized features.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	34 I'm thankful for this task being solved. I only pulled the changes into
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	35 mmh.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	36 .P
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	37 The other task \(en dropping ancient functionality to remove old code \(en
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	38 I did myself, though. My position to strip mmh to the bare minimum of
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	39 frequently used features is much more revolutional than the nmh community
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	40 likes it. Without the need to justify my decisions, I was able to quickly
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	41 remove functionality I considered ancient.
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	42 The need to discuss my decisions with
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	43 peers likely would have slowed this process down. Of course, I researched
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	44 if a particular feature really should be dropped. Having not had any
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	45 contact to this feature within my computer life was a first indicator to
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	46 drop it, but I also asked others and searched the literature for modern
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	47 usage of the feature. If it appeared to be truly ancient, I dropped it.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	48 The reason for dropping is always part of the commit message in the
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	49 version control system. Thus, it is easy for others to check their
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	50 view on the topic with mine and possibly to argue for reinclusion.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	51
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	52 .U2 "MMDF maildrop support
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	53 .P
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	54 I did drop any support for the MMDF maildrop format. This type of format
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	55 is conceptionally similar to the mbox format, but uses four bytes with
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	56 value 1 (\fL^A^A^A^A\fP) as message delimiter,
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	57 instead of the string ``\fLFrom\ \fP''.
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	58 Due to the similarity and mbox being the de-facto standard maildrop
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	59 format on Unix, but also due to the larger influence of Sendmail than MMDF,
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	60 the MMDF maildrop format had vanished.
0 dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	61 .P
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	62 The simplifications within the code were only moderate. Switches could
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	63 be removed from tools like
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	64 .L packf ,
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	65 which generate packed mailboxes. Only one packed mailbox format remained:
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	66 mbox.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	67 The most important changes affect the equally named mail parsing routine in
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	68 .L sbr/m_getfld.c .
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	69 The direct MMDF code had been removed, but as now only one packed mailbox
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	70 format is left, code structure simplifications are likely possible.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	71 The reason why they are still outstanding is the heavily optimized code
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	72 of
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	73 .Fu m_getfld() .
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	74 Changes beyond a small local scope \(en
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	75 which restructuring in its core is \(en cause a high risk of damaging
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	76 the intricate workings of the optimized code. This problem is know
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	77 to the developers of nmh, too. They also avoid touching this minefield
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	78 if possible.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	79
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	80 .U2 "UUCP Bang Paths
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	81 .P
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	82 More questionably than the former topic is the removal of support for the
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	83 UUCP bang path address style. However, the user may translate the bang
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	84 paths on retrieval to Internet addresses and the other way on posting
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	85 messages. The former can be done my an MDA like procmail; the latter
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	86 by a sendmail wrapper. This would ensure that any address handling would
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	87 work as expected. However, it might just work well without any
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	88 such modifications, as mmh does not touch addresses much, in general.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	89 But I can't ensure as I have never used an environment with bang paths.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	90 Also, the behavior might break at any point in further development.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	91
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	92 .U2 "Hardcopy terminal support
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	93 .P
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	94 More of a funny anecdote is the remaining of a check for printing to a
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	95 hardcopy terminal until Spring 2012, when I finally removed it.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	96 I surely would be very happy to see such a terminal in action, maybe
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	97 actually being able to work on it, but I fear my chances are null.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	98 .P
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	99 The check only prevented a pager to be placed between the outputting
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	100 program (\c
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	101 .Pn mhl )
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	102 and the terminal. This could have been ensured with
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	103 the
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	104 .Sw \-nomoreproc
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	105 at the command line statically, too.
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	106
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	107 .U2 "Removed support for header fields
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	108 .P
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	109 The `Encrypted' header had been introduced by RFC\^822, but already
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	110 marked legacy in RFC 2822. It was superseded by FIXME.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	111 Mmh does no more support this header.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	112 .P
21 bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	113 Native support for `Face' headers
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	114 had been removed, as well.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	115 The feature is similar to the `X-Face' header in its intent,
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	116 but takes a different approach to store the image.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	117 Instead of encoding the image data directly into the header,
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	118 the the header contains the hostname and UDP port where the image
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	119 date could be retrieved.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	120 Neither `X-Face' nor the here described `Face' system
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	121 \**
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	122 .FS
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	123 There is also a newer but different system, invented 2005,
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	124 using `Face' headers.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	125 It is the successor of `X-Face' providing colored PNG images.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	126 .FE
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	127 became well used in the large scale.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	128 It's still possible to use a Face systems,
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	129 although mmh does not provide support for any of the different systems
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	130 anymore. It's fairly easy to write a small shell script to
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	131 extract the embedded or fetch the external Face data and display the image.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	132 Own Face headers can be added into the draft template files.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	133 .P
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	134 `Content-MD5' headers were introduced by RFC\^1864. They provide only
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	135 a verification of data corruption during the transfer. By no means can
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	136 they ensure verbatim end-to-end delivery of the contents. This is clearly
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	137 stated in the RFC. The proper approach to provide verificationability
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	138 of content in an end-to-end relationship is the use of digital cryptography
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	139 (RFCs FIXME). On the other hand, transfer protocols should ensure the
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	140 integrity of the transmission. In combinations these two approaches
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	141 make the `Content-MD5' header field useless. In consequence, I removed
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	142 the support for it. By this removal, MD5 computation is not needed
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	143 anywhere in mmh. Hence, over 500 lines of code were removed by this one
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	144 change. Even if the `Content-MD5' header field is useful sometimes,
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	145 I value its usefulnes less than the improvement in maintainability, caused
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	146 by the removal.
7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	147
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	148 .U2 "Prompter's Control Keys
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	149 .P
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	150 The program
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	151 .Pn prompter
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	152 queries the user to fill in a message form. When used by
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	153 .Pn comp
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	154 as:
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	155 .DS
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	156 comp \-editor prompter
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	157 .DE
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	158 the resulting behavior is similar to
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	159 .Pn mailx .
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	160 Apparently,
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	161 .Pn prompter
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	162 hadn't been touched lately. Otherwise it's hardly explainable why it
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	163 still offered the switches
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	164 .Sn \-erase \fUchr\fP
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	165 and
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	166 .Sn \-kill \fUchr\fP
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	167 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	168 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	169 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	170 with the standard tool
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	171 .Pn stty .
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	172
21 bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	173 .U2 "Vfork and Retry Loops
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	174 .P
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	175 MH creates many processes, which is a consequence of the tool chest approach.
21 bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	176 In earlier times
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	177 .Fu fork()
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	178 had been an expensive system call, as the process's whole image needed
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	179 to be duplicated. One common case is replacing the image with
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	180 .Fu exec()
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	181 right after having forked the child process.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	182 To speed up this case, the
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	183 .Fu vfork()
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	184 system call was invented at Berkeley. It completely omits copying the
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	185 image. If the image gets replaced right afterwards then unnecessary
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	186 work is omited. On old systems this results in large speed ups.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	187 MH uses
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	188 .Fu vfork()
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	189 whenever possible.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	190 .P
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	191 Memory management units that support copy-on-write semantics make
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	192 .Fu fork()
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	193 almost as fast as
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	194 .Fu vfork()
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	195 in the cases when they can be exchanged.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	196 With
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	197 .Fu vfork()
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	198 being more error-prone and hardly faster, it's preferable to simply
21 bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	199 use
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	200 .Fu fork()
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	201 instead.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	202 .P
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	203 Related to the costs of
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	204 .Fu fork()
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	205 is the probability of its success.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	206 Today on modern systems, the system call will succeed almost always.
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	207 In the Eighties on heavy loaded systems, as they were common at
21 bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	208 universities, this had been different. Thus, many of the
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	209 .Fu fork()
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	210 calls were wrapped into loops to retry to fork several times in
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	211 short intervals, in case of previous failure.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	212 In mmh, the program aborts at once if the fork failed.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	213 The user can reexecute the command then. This is expected to be a
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	214 very rare case on modern systems, especially personal ones, which are
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	215 common today.
bb8a8be49024 Wrote about Face support and vfork(). markus schnalke <meillo@marmaro.de> parents: 20 diff changeset	216
12 7ca384d68edc Wrote some text for removal of old code. markus schnalke <meillo@marmaro.de> parents: 0 diff changeset	217
22 99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	218 .H1 "Removal of Tools
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	219 .P
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	220 MH had been considered an all-in-one system for mail handling.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	221 The community around nmh has a similar understanding.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	222 In fundamental difference, I believe that mmh should be a MUA but
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	223 nothing more. I believe that all-in-one mail systems are not the way
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	224 to go. There are excellent specialized MTAs, like Postfix;
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	225 there are specialized MDAs, like Procmail; there are specialized
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	226 MRAs, like Fetchmail. I believe it's best to use them instead of
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	227 providing the same function ourselves. Doing something well requires to
22 99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	228 focus on this particular aspect or a small set of aspects. The more
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	229 it is possible to focus, the better the result in this particular
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	230 area will be. The limiting resource in Free Software community development
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	231 usually is human power. If the low development power is even parted
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	232 into multiple development areas, it will hardly be possible to
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	233 compete with the specialists in the various fields. This is even
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	234 increased, given the small community \(en developers and users \(en
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	235 that MH-based mail systems have. In consequence, I believe that the
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	236 available resources should be concentrated at the point where MH is
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	237 most unique. This is clearly the MUA part.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	238 .P
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	239 Several of nmh's tools were removed from mmh because they didn't
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	240 match the main focus of adding to the MUA's task.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	241 .P
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	242 .Pn conflict
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	243 was removed because it is a mail system maintenance tool.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	244 Besides, it also checks the
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	245 .Fn /etc/passwd
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	246 and
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	247 .Fn /etc/group
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	248 files.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	249 The tool might be useful, but it should not be shipped with mmh.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	250 .P
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	251 .Pn rcvtty
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	252 was removed because its usecase of writing to the user's terminal
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	253 on receiving of mail is hardly wanted today. If users like to be
22 99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	254 informed of new mail, then using the shell's
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	255 .Ev MAILPATH
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	256 variable or different (graphical) notifications are likely more
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	257 appealing. Writing directly to other terminals is hardly ever wanted
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	258 today. If though one wants to have it this way, the standard tool
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	259 .Pn write
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	260 can be used in a way similar to:
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	261 .DS
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	262 scan -file - \| write `id -un`
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	263 .DE
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	264 .P
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	265 When the new attachment system was introduced,
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	266 .Pn viamail
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	267 was removed because then
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	268 .Pn forw
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	269 could cover the task itself.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	270 The wrapper program
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	271 .Pn sendfiles
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	272 was rewritten as a shell script to use
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	273 .Pn forw .
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	274 .P
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	275 .Pn msgchk
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	276 was removed as it became hardly useful when POP support was removed.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	277 It is questionable if
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	278 .Pn msgchk
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	279 provides more information than:
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	280 .DS
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	281 ls -l /var/mail/meillo
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	282 .DE
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	283 It does separate between old and new mail, but that's not very
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	284 useful and can be found out with
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	285 .Pn stat (1)
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	286 too. A very small shell script could care for the form of output.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	287 As mmh's inc only incorporates mail from the user's local maildrop
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	288 and thus no long data transfers are involved,
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	289 there's no need to check for new mail before incorporating it.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	290 .P
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	291 .Pn msh
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	292 was removed because the tool was in conflict with the original
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	293 philosophy of MH. It provided an interactive shell to access the
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	294 features of MH. One major feature of MH is being a tool chest.
22 99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	295 .Pn msh
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	296 wouldn't be just another shell, tailored to the needs of mail
22 99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	297 handling, but one large program to have the MH tools built in.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	298 It's main use was for accessing Bulletin Boards, which have seized to
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	299 be popular. Removing
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	300 .Pn msh ,
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	301 together with the truly obsolete programs
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	302 .Pn vmh
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	303 and
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	304 .Pn wmh ,
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	305 saved more than 7\\|000 lines of C code \(en a major achievement.
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	306
99409e4546d2 Wrote about the removal of tools. markus schnalke <meillo@marmaro.de> parents: 21 diff changeset	307
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	308 .H1 "Draft and Trash Folders
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	309 .U2 "Draft Folder
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	310 .P
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	311 Historically, MH provided exactly one draft message, named
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	312 .Fn draft
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	313 and
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	314 being located in the MH directory. When starting to compose another message
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	315 before the former one was sent, the user had been questioned whether to use,
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	316 refile or replace the old draft. Working on multiple drafts at the same time
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	317 was impossible. One could only work on them in alteration by refiling the
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	318 previous one to some directory and fetching some other one for reediting.
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	319 This manual draft management needed to be done each time the user wanted
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	320 to switch between editing one draft to editing another.
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	321 .P
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	322 To allow true parallel editing of drafts, in a straight forward way, the
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	323 draft folder facility exists. It had been introduced already in July 1984
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	324 by Marshall T. Rose. The facility was deactivated by default.
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	325 Even in nmh, the draft folder facility remained deactivated by default.
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	326 At least, Richard Coleman added the man page
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	327 .Mp mh-draft(5)
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	328 to document
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	329 the feature well.
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	330 .P
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	331 The only advantage of not using the draft folder facility is the static
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	332 name of the draft file. This could be an issue for MH frontends like mh-e.
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	333 But as they likely want to provide working on multiple drafts in parallel,
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	334 the issue is only concerning compatibility. The aim of nmh to stay compatible
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	335 prevented the default activation of the draft folder facility.
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	336 .P
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	337 On the other hand, a draft folder is the much more natural concept than
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	338 a draft message. MH's mail storage consists of folders and messages,
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	339 the messages named with ascending numbers. A draft message breaks with this
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	340 concept by introducing a message in a file named
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	341 .Fn draft .
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	342 This draft
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	343 message is special. It can not be simply listed with the available tools,
17 b3c37947764e Several minor text improvements. markus schnalke <meillo@marmaro.de> parents: 16 diff changeset	344 but instead requires special switches. I.e. corner-cases were
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	345 introduced. A draft folder, in contrast, does not introduce such
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	346 corner-cases. The available tools can operate on the messages within that
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	347 folder like on any messages within any mail folders. The only difference
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	348 is the fact that the default folder for
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	349 .Pn send
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	350 is the draft folder,
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	351 instead of the current folder, like for all other tools.
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	352 .P
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	353 The trivial part of the change was activating the draft folder facility
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	354 by default and setting a default name for this folder. Obviously, I chose
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	355 the name
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	356 .Fn +drafts .
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	357 This made the
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	358 .Sw \-draftfolder
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	359 and
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	360 .Sw \-draftmessage
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	361 switches useless, and I could remove them.
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	362 The more difficult but also the part that showed the real improvement,
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	363 was updating the tools to the new concept.
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	364 .Sw \-draft
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	365 switches could
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	366 be dropped, as operating on a draft message became indistinguishable to
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	367 operating on any other message for the tools.
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	368 .Pn comp
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	369 still has its
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	370 .Sw \-use
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	371 switch for switching between its two modes: (1) Compose a new
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	372 draft, possibly by taking some existing message as a form. (2) Modify
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	373 an existing draft. In either case, the behavior of
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	374 .Pn comp is
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	375 deterministic. There is no more need to query the user. I consider this
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	376 a major improvement. By making
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	377 .Pn send
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	378 simply operate on the current
17 b3c37947764e Several minor text improvements. markus schnalke <meillo@marmaro.de> parents: 16 diff changeset	379 message in the draft folder by default, with message and folder both
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	380 overridable by specifying them on the command line, it is now possible
17 b3c37947764e Several minor text improvements. markus schnalke <meillo@marmaro.de> parents: 16 diff changeset	381 to send a draft anywhere within the storage by simply specifying its folder
b3c37947764e Several minor text improvements. markus schnalke <meillo@marmaro.de> parents: 16 diff changeset	382 and name.
14 55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	383 .P
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	384 All theses changes converted special cases to regular cases, thus
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	385 simplifying the tools and increasing the flexibility.
55ec590cfa07 Wrote about the draft folder. markus schnalke <meillo@marmaro.de> parents: 12 diff changeset	386
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	387 .U2 "Trash Folder
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	388 .P
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	389 Similar to the situation for drafts is the situation for removed messages.
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	390 Historically, a message was deleted by renaming. A specific
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	391 \fIbackup prefix\fP, often comma (\c
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	392 .Fn , )
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	393 or hash (\c
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	394 .Fn # ),
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	395 being prepended to the file name. Thus, MH wouldn't recognize the file
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	396 as a message anymore, as only files whose name consists of digits only
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	397 are treated as messages. The removed messages remained as files in the
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	398 same directory and needed some maintenance job to truly delete them after
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	399 some grace time. Usually, by running a command similar to
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	400 .DS
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	401 find /home/user/Mail \-ctime +7 \-name ',*' \| xargs rm
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	402 .DE
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	403 in a cron job. Within the grace time interval
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	404 the original message could be restored by stripping the
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	405 the backup prefix from the file name. If however, the last message of
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	406 a folder is been removed \(en say message
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	407 .Fn 6
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	408 becomes file
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	409 .Fn ,6
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	410 \(en and a new message enters the same folder, thus the same
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	411 numbered being given again \(en in our case
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	412 .Fn 6
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	413 \(en, if that one
17 b3c37947764e Several minor text improvements. markus schnalke <meillo@marmaro.de> parents: 16 diff changeset	414 is removed too, then the backup of the former message gets overwritten.
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	415 Thus, the ability to restore removed messages does not only depend on
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	416 the ``sweeping cron job'' but also on the removing of further messages.
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	417 This is undesirable, because the real mechanism is hidden from the user
49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	418 and the consequences of further removals are not always obvious.
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	419 Further more, the backup files are scattered within the whole mail
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	420 storage, instead of being collected at one place.
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	421 .P
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	422 To improve the situation, the profile entry
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	423 .Pe rmmproc
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	424 (previously named
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	425 .Pe Delete-Prog )
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	426 was introduced, very early.
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	427 It could be set to any command, which would care for the mail removal
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	428 instead of taking the default action, described above.
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	429 Refiling the to-be-removed files to some garbage folder was a common
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	430 example. Nmh's man page
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	431 .Mp rmm(1)
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	432 proposes
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	433 .Cl "refile +d
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	434 to move messages to the garbage folder and
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	435 .Cl "rm `mhpath +d all`
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	436 the empty the garbage folder.
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	437 Managing the message removal this way is a sane approach. It keeps
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	438 the removed messages in one place, makes it easy to remove the backup
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	439 files, and, most important, enables the user to use the tools of MH
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	440 itself to operate on the removed messages. One can
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	441 .Pn scan
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	442 them,
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	443 .Pn show
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	444 them, and restore them with
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	445 .Pn refile .
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	446 There's no more
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	447 need to use
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	448 .Pn mhpath
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	449 to switch over from MH tools to Unix tools \(en MH can do it all itself.
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	450 .P
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	451 This approach matches perfect with the concepts of MH, thus making
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	452 it powerful. Hence, I made it the default. And even more, I also
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	453 removed the old backup prefix approach, as it is clearly less powerful.
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	454 Keeping unused alternative in the code is a bad choice as they likely
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	455 gather bugs, by not being constantly tested. Also, the increased code
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	456 size and more conditions crease the maintenance costs. By strictly
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	457 converting to the trash folder approach, I simplified the code base.
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	458 .Pn rmm
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	459 calls
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	460 .Pn refile
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	461 internally to move the to-be-removed
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	462 message to the trash folder (\c
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	463 .Fn +trash
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	464 by default). Messages
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	465 there can be operated on like on any other message in the storage.
18 db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	466 The sweep clean, one can use
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	467 .Cl "rmm \-unlink +trash a" ,
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	468 where the
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	469 .Sw \-unlink
db3567c9cc3f style: Added format macros for files, functions, switches, etc. markus schnalke <meillo@marmaro.de> parents: 17 diff changeset	470 switch causes the files to be truly unliked instead
16 81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	471 of moved to the trash folder.
81f703140554 Wrote about the trash folder. markus schnalke <meillo@marmaro.de> parents: 14 diff changeset	472
0 dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	473
17 b3c37947764e Several minor text improvements. markus schnalke <meillo@marmaro.de> parents: 16 diff changeset	474 .H1 "MH Directory Split
0 dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	475 .P
19 ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	476 In MH and nmh, a personal setup had consisted of two parts:
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	477 The MH profile, named
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	478 .Fn \&.mh_profile
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	479 and being located directly in the user's home directory.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	480 And the MH directory, where all his mail messages and also his personal
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	481 forms, scan formats, other configuration files are stored. The location
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	482 of this directory could be user-chosen. The default was to name it
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	483 .Fn Mail
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	484 and have it directly in the home directory.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	485 .P
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	486 I've never liked the data storage and the configuration to be intermixed.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	487 They are different kinds of data. One part, are the messages,
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	488 which are the data to operate on. The other part, are the personal
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	489 configuration files, which are able to change the behavior of the operations.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	490 The actual operations are defined in the profile, however.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	491 .P
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	492 When storing data, one should try to group data by its type.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	493 There's sense in the Unix file system hierarchy, where configuration
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	494 file are stored separate (\c
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	495 .Fn /etc )
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	496 to the programs (\c
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	497 .Fn /bin
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	498 and
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	499 .Fn /usr/bin )
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	500 to their sources (\c
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	501 .Fn /usr/src ).
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	502 Such separation eases the backup management, for instance.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	503 .P
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	504 In mmh, I've reorganized the file locations.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	505 Still there are two places:
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	506 There's the mail storage directory, which, like in MH, contains all the
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	507 messages, but, unlike in MH, nothing else.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	508 Its location still is user-chosen, with the default name
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	509 .Fn Mail ,
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	510 in the user's home directory. This is much similar to the case in nmh.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	511 The configuration files, however, are grouped together in the new directory
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	512 .Fn \&.mmh
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	513 in the user's home directory.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	514 The user's profile now is a file, named
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	515 .Fn profile ,
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	516 in this mmh directory.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	517 Consistently, the context file and all the personal forms, scan formats,
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	518 and the like, are also there.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	519 .P
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	520 The naming changed with the relocation.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	521 The directory where everything, except the profile, had been stored (\c
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	522 .Fn $HOME/Mail ),
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	523 used to be called \fIMH directory\fP. Now, this directory is called the
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	524 user's \fImail storage\fP. The name \fImmh directory\fP is now given to
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	525 the new directory
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	526 (\c
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	527 .Fn $HOME/.mmh ),
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	528 containing all the personal configuration files.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	529 .P
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	530 The separation of the files by type of content is logical and convenient.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	531 There are no functional differences as any possible setup known to me
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	532 can be implemented with both approaches, although likely a bit easier
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	533 with the new approach. The main goal of the change had been to provide
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	534 sensible storage locations for any type of personal mmh file.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	535 .P
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	536 In order for one user to have multiple MH setups, he can use the
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	537 environment variable
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	538 .Ev MH
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	539 the point to a different profile file.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	540 The MH directory (mail storage plus personal configuration files) is
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	541 defined by the
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	542 .Pe Path
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	543 profile entry.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	544 The context file could be defined by the
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	545 .Pe context
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	546 profile entry or by the
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	547 .Ev MHCONTEXT
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	548 environment variable.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	549 The latter is useful to have a distinct context (e.g. current folders)
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	550 in each terminal window, for instance.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	551 In mmh, there are three environment variables now.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	552 .Ev MMH
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	553 may be used to change the location of the mmh directory.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	554 .Ev MMHP
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	555 and
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	556 .Ev MMHC
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	557 change the profile and context files, respectively.
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	558 Besides providing a more consistent feel (which simply is the result
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	559 of being designed anew), the set of personal configuration files can
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	560 be chosen independently from the profile (including mail storage location)
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	561 and context, now. Being it relevant for practical use or not, it
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	562 de-facto is an improvement. However, the main achievement is the
ab5253e48c74 Wrote about the directory split. markus schnalke <meillo@marmaro.de> parents: 18 diff changeset	563 split between mail storage and personal configuration files.
17 b3c37947764e Several minor text improvements. markus schnalke <meillo@marmaro.de> parents: 16 diff changeset	564
0 dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	565
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	566 .H1 "Path Notations
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	567 .P
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	568 foo
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	569
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	570 .H1 "Attachments
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	571 .P
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	572 foo
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	573
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	574 .H1 "mhshow to show Transition
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	575 .P
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	576 Since the very beginning, already in the first concept paper,
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	577 .Pn show
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	578 had been MH's mail display program.
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	579 .Pn show
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	580 found out which pathnames the relevant messages had and invoked
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	581 .Pn mhl
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	582 then to let it render the content.
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	583 With the advent of MIME, this approach wasn't sufficient anymore.
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	584 MIME messages can consist of multiple parts, some of which aren't
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	585 directly displayable, and text content can be encoded in
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	586 foreign charsets.
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	587 .Pn show 's
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	588 simple approach and
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	589 .Pn mhl 's
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	590 limited display facilities couldn't cope with the task any longer.
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	591 Instead of extending these tools, new ones were written from scratch
51 49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	592 and then added to the MH tool chest. Doing so is encouraged by the
49cf68506b5d Spell checking. markus schnalke <meillo@marmaro.de> parents: 49 diff changeset	593 tool chest approach. The new tools could be added without interfering
20 7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	594 with the existing ones. This is great. It allowed MH to be the
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	595 first MUA to implement MIME.
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	596 .P
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	597 The new MIME features were added in form of the single program
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	598 .Pn mhn .
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	599 The command
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	600 .DS
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	601 mhn \-show 42
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	602 .DE
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	603 would show the MIME message numbered 42.
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	604 With the 1.0 release of nmh in February 1999, Richard Coleman finished
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	605 the split of
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	606 .Pn mhn
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	607 into a set of specialized programs, which together covered the
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	608 aspects of MIME. One of these resulting tools was
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	609 .Pn mhshow .
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	610
7a100c80fa91 Some new text (show/mhshow; prompter). markus schnalke <meillo@marmaro.de> parents: 19 diff changeset	611
0 dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	612 .H1 "Blind Carbon Copies
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	613 .P
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	614 foo
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	615
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	616 .H1 "Good Defaults
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	617 .P
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	618 foo
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	619
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	620 .H1 "Modularization
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	621 .P
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	622 foo
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	623
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	624 .H1 "Code style
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	625 .P
dc2bfef4cda7 Initial commit: Basic structure, macros and fonts. markus schnalke <meillo@marmaro.de> parents: diff changeset	626 foo
49 d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	627
d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	628
d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	629
d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	630 (e.g. the
d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	631 user-visible access to whole messages and MIME parts are inherently
d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	632 different).
d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	633
d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	634 The \fIMH library\fP
d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	635 .Fn libmh.a
d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	636 collects a bunch of standard functions that many of the MH tools need,
d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	637 like reading the profile or context files.
d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	638 This doesn't hurt the separation.
d3a02f5e63b3 Various rework. markus schnalke <meillo@marmaro.de> parents: 23 diff changeset	639

Mercurial > docs > master

annotate ch03.roff @ 55:89e7a32d1f10