--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ed.c	Mon Sep 05 16:31:35 2011 +0200
@@ -0,0 +1,2822 @@
+/*
+ * Editor
+ */
+
+/*
+ * Changes by Gunnar Ritter, Freiburg i. Br., Germany, July 2003.
+ */
+/*	from Unix 32V /usr/src/cmd/ed.c	*/
+/*
+ * Copyright(C) Caldera International Inc. 2001-2002. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *   Redistributions of source code and documentation must retain the
+ *    above copyright notice, this list of conditions and the following
+ *    disclaimer.
+ *   Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *   All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed or owned by Caldera
+ *      International, Inc.
+ *   Neither the name of Caldera International, Inc. nor the names of
+ *    other contributors may be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
+ * INTERNATIONAL, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE
+ * LIABLE FOR ANY DIRECT, INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if __GNUC__ >= 3 && __GNUC_MINOR__ >= 4 || __GNUC__ >= 4
+#define	USED	__attribute__ ((used))
+#elif defined __GNUC__
+#define	USED	__attribute__ ((unused))
+#else
+#define	USED
+#endif
+#if defined (SU3)
+static const char sccsid[] USED = "@(#)ed_su3.sl	1.99 (gritter) 7/27/06";
+#elif defined (SUS)
+static const char sccsid[] USED = "@(#)ed_sus.sl	1.99 (gritter) 7/27/06";
+#elif defined (S42)
+static const char sccsid[] USED = "@(#)ed_s42.sl	1.99 (gritter) 7/27/06";
+#else	/* !SU3, !SUS, !S42 */
+static const char sccsid[] USED = "@(#)ed.sl	1.99 (gritter) 7/27/06";
+#endif	/* !SU3, !SUS, !S42 */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <time.h>
+#include <string.h>
+#include <stdlib.h>
+#include <signal.h>
+#include "sigset.h"
+#include <termios.h>
+#include <setjmp.h>
+#include <libgen.h>
+#include <inttypes.h>
+#include <locale.h>
+#include <wchar.h>
+#include <ctype.h>
+#include <wctype.h>
+#include <limits.h>
+#include <termios.h>
+static int	FNSIZE;
+static int	LBSIZE;
+static int	RHSIZE;
+#define	ESIZE	2048
+static int	GBSIZE;
+#undef	EOF
+#define	EOF	-1
+#define	puts(s)		xxputs(s)
+#define	getline(t, n)	xxgetline(t, n)
+
+#if (LONG_MAX > 017777777777L)
+#define	MAXCNT	0777777777777777777777L		/* 2^63-1 */
+#else
+#define	MAXCNT	017777777777L			/* 2^31-1 */
+#endif
+#define	BLKMSK	(MAXCNT>>8)			/* was 0377 */
+
+#define	READ	0
+#define	WRITE	1
+#define	EXIST	2
+
+struct	tabulator {
+	struct tabulator	*t_nxt;	/* next list element */
+	const char	*t_str;		/* tabulator string */
+	int	t_tab;			/* tab stop position */
+	int	t_rep;			/* repetitive tab count */
+};
+
+static int	peekc;
+static int	lastc;
+static char	*savedfile;
+static char	*file;
+static struct stat	fstbuf;
+static char	*linebuf;
+static char	*rhsbuf;
+static char	expbuf[ESIZE + 4];
+static long	*zero;
+static long	*undzero;
+static long	*dot;
+static long	*unddot;
+static long	*dol;
+static long	*unddol;
+static long	*addr1;
+static long	*addr2;
+static char	*genbuf;
+static long	count;
+static char	*linebp;
+static int	ninbuf;
+static int	io;
+static int	ioeof;
+static int	pflag;
+static char	*wrtemp;
+static uid_t	myuid;
+static void	(*oldhup)(int);
+static void	(*oldquit)(int);
+static void	(*oldpipe)(int);
+static int	vflag	= 1;
+static int	listf;
+static int	numbf;
+static char	*globp;
+static int	tfile	= -1;
+static long	tline;
+static char	tfname[64];
+static char	ibuff[512];
+static int	iblock	= -1;
+static char	obuff[512];
+static int	oblock	= -1;
+static int	ichanged;
+static int	nleft;
+static long	*names;
+static long	*undnames;
+static int	anymarks;
+static int	subnewa;
+static int	fchange;
+static int	wrapp;
+static unsigned nlall = 128;
+static const char	*progname;
+static const char	*prompt = "*";
+static int	Pflag;
+static int	prhelp;
+static const char	*prvmsg;
+static int	lastsig;
+static int	pipid = -1;
+static int	readop;
+static int	status;
+static int	mb_cur_max;
+static int	needsub;
+static int	insub;
+static struct tabulator	*tabstops;
+static int	maxlength;
+static int	rspec;
+static int	Nflag;
+static int	bcount = 22;
+static int	ocount = 11;
+
+static jmp_buf	savej;
+
+static void	usage(char, int);
+static void	commands(void);
+static long	*address(void);
+static void	setdot(void);
+static void	setall(void);
+static void	setnoaddr(void);
+static void	nonzero(void);
+static void	newline(void);
+static void	filename(int);
+static void	exfile(void);
+static void	onintr(int);
+static void	onhup(int);
+static void	onpipe(int);
+static void	error(const char *);
+static void	error2(const char *, const char *);
+static void	errput(const char *, const char *);
+static int	getchr(void);
+static int	gettty(void);
+static long	getnum(void);
+static int	getfile(void);
+static void	putfile(void);
+static int	append(int (*)(void), long *);
+static void	callunix(void);
+static char	*readcmd(void);
+static void	quit(int);
+static void	delete(void);
+static void	rdelete(long *, long *);
+static void	gdelete(void);
+static char	*getline(long, int);
+static int	putline(void);
+static char	*getblock(long, long);
+static void	blkio(long, char *, int);
+static void	init(void);
+static void	global(int, int);
+static void	globrd(char **, int);
+static void	join(void);
+static void	substitute(int);
+static int	compsub(void);
+static int	getsub(void);
+static int	dosub(int);
+static int	place(int, const char *, const char *);
+static void	move(int);
+static void	reverse(long *, long *);
+static int	getcopy(void);
+static int	execute(int, long *, int);
+static void	cmplerr(int);
+static void	doprnt(long *, long *);
+static void	putd(long);
+static void	puts(const char *);
+static void	nlputs(const char *);
+static void	list(const char *);
+static int	lstchr(int);
+static void	putstr(const char *);
+static void	putchr(int);
+static void	checkpoint(void);
+static void	undo(void);
+static int	maketf(int);
+static int	creatf(const char *);
+static int	sopen(const char *, int);
+static void	sclose(int);
+static void	fspec(const char *);
+static const char	*ftok(const char **);
+static struct tabulator	*tabstring(const char *);
+static void	freetabs(void);
+static void	expand(const char *);
+static void	growlb(const char *);
+static void	growrhs(const char *);
+static void	growfn(const char *);
+static void	help(void);
+
+#define	INIT
+#define	GETC()		getchr()
+#define	UNGETC(c)	(peekc = c)
+#define	PEEKC()		(peekc = getchr())
+#define	RETURN(c)	return c
+#define	ERROR(c)	cmplerr(c)
+static wint_t	GETWC(char *);
+
+#if defined (SUS) || defined (S42) || defined (SU3)
+
+#include <regex.h>
+
+#define	NBRA	9
+
+static char	*braslist[NBRA];
+static char	*braelist[NBRA];
+static char	*loc1, *loc2, *locs;
+static int	nbra;
+static int	circf;
+static int	nodelim;
+
+static char	*compile(char *, char *, const char *, int);
+static int	step(const char *, const char *);
+
+#else	/* !SUS, !S42, !SU3 */
+
+#include <regexp.h>
+
+#endif	/* !SUS, !S42, !SU3 */
+
+int
+main(int argc, char **argv)
+{
+	register int i;
+	void (*oldintr)(int);
+
+	progname = basename(argv[0]);
+#if defined (SUS) || defined (S42) || defined (SU3)
+	setlocale(LC_COLLATE, "");
+#endif
+	setlocale(LC_CTYPE, "");
+	mb_cur_max = MB_CUR_MAX;
+	myuid = getuid();
+	oldquit = sigset(SIGQUIT, SIG_IGN);
+	oldhup = sigset(SIGHUP, SIG_IGN);
+	oldintr = sigset(SIGINT, SIG_IGN);
+	if (sigset(SIGTERM, SIG_IGN) != SIG_IGN)
+		sigset(SIGTERM, quit);
+	oldpipe = sigset(SIGPIPE, onpipe);
+	argv++;
+	while (argc > 1 && **argv=='-') {
+		if ((*argv)[1] == '\0') {
+			vflag = 0;
+			goto next;
+		} else if ((*argv)[1] == '-' && (*argv)[2] == '\0') {
+			argv++;
+			argc--;
+			break;
+		}
+	letter:	switch((*argv)[1]) {
+
+		case 's':
+			vflag = 0;
+			break;
+
+		case 'q':
+			sigset(SIGQUIT, SIG_DFL);
+			vflag = 1;
+			break;
+
+		case 'p':
+			if ((*argv)[2])
+				prompt = &(*argv)[2];
+			else if (argv[1]) {
+				prompt = argv[1];
+				argv++;
+				argc--;
+			} else
+				usage((*argv)[1], 1);
+			Pflag = 1;
+			goto next;
+
+		default:
+			usage((*argv)[1], 0);
+		}
+		if ((*argv)[2]) {
+			(*argv)++;
+			goto letter;
+		}
+	next:	argv++;
+		argc--;
+	}
+
+	growfn("no space");
+	if (argc>1) {
+		i = -1;
+		do
+			if (++i >= FNSIZE)
+				growfn("maximum of characters in "
+						"file names reached");
+		while (savedfile[i] = (*argv)[i]);
+		globp = "e";
+	}
+	names = malloc(26*sizeof *names);
+	undnames = malloc(26*sizeof *undnames);
+	zero = malloc(nlall*sizeof *zero);
+	if ((undzero = malloc(nlall*sizeof *undzero)) == NULL)
+		puts("no memory for undo");
+	growlb("no space");
+	growrhs("no space");
+	init();
+	if (oldintr != SIG_IGN)
+		sigset(SIGINT, onintr);
+	if (oldhup != SIG_IGN)
+		sigset(SIGHUP, onhup);
+	setjmp(savej);
+	if (lastsig) {
+		sigrelse(lastsig);
+		lastsig = 0;
+	}
+	commands();
+	quit(0);
+	/*NOTREACHED*/
+	return 0;
+}
+
+static void
+usage(char c, int misarg)
+{
+	if (c) {
+		write(2, progname, strlen(progname));
+		if (misarg)
+			write(2, ": option requires an argument -- ", 33);
+		else
+			write(2, ": illegal option -- ", 20);
+		write(2, &c, 1);
+		write(2, "\n", 1);
+	}
+	write(2, "usage: ", 7);
+	write(2, progname, strlen(progname));
+	write(2, " [- | -s] [-p string] [file]\n", 29);
+	exit(2);
+}
+
+static void
+commands(void)
+{
+	register long *a1;
+	register int c;
+	int	n;
+
+	for (;;) {
+	if (pflag) {
+		pflag = 0;
+		addr1 = addr2 = dot;
+		goto print;
+	}
+	if (Pflag && globp == NULL)
+		write(1, prompt, strlen(prompt));
+	addr1 = 0;
+	addr2 = 0;
+	switch (c = getchr()) {
+	case ',':
+	case ';':
+		addr2 = c == ',' ? zero+1 : dot;
+		if (((peekc = getchr()) < '0' || peekc > '9') &&
+				peekc != ' ' && peekc != '\t' &&
+				peekc != '+' && peekc != '-' &&
+				peekc != '^' && peekc != '?' &&
+				peekc != '/' && peekc != '$' &&
+				peekc != '.' && peekc != '\'') {
+			addr1 = addr2;
+			a1 = dol;
+			goto loop;
+		}
+		break;
+	default:
+		peekc = c;
+	}
+	do {
+		addr1 = addr2;
+		if ((a1 = address())==0) {
+			c = getchr();
+			break;
+		}
+	loop:	addr2 = a1;
+		if ((c=getchr()) == ';') {
+			c = ',';
+			dot = a1;
+		}
+	} while (c==',');
+	if (addr1==0)
+		addr1 = addr2;
+	switch(c) {
+
+	case 'a':
+		setdot();
+		newline();
+		checkpoint();
+		append(gettty, addr2);
+		continue;
+
+	case 'c':
+#if defined (SU3)
+		if (addr1 == zero && addr1+1 <= dol) {
+			if (addr1 == addr2)
+				addr2++;
+			addr1++;
+		}
+#endif	/* SU3 */
+		delete();
+		append(gettty, addr1-1);
+#if defined (SUS) || defined (SU3)
+		if (dot == addr1-1 && addr1 <= dol)
+			dot = addr1;
+#endif	/* SUS || SU3 */
+		continue;
+
+	case 'd':
+		delete();
+		continue;
+
+	case 'E':
+		fchange = 0;
+		c = 'e';
+	case 'e':
+		setnoaddr();
+		if (vflag && fchange) {
+			fchange = 0;
+			error("warning: expecting `w'");
+		}
+		filename(c);
+		init();
+		addr2 = zero;
+		goto caseread;
+
+	case 'f':
+		setnoaddr();
+		filename(c);
+		puts(savedfile);
+		continue;
+
+	case 'g':
+		global(1, 0);
+		continue;
+
+	case 'G':
+		global(1, 1);
+		continue;
+
+	case 'H':
+		prhelp = !prhelp;
+		/*FALLTHRU*/
+
+	case 'h':
+		if ((peekc = getchr()) == 'e') {
+			peekc = 0;
+			if (getchr() != 'l' || getchr() != 'p' ||
+					getchr() != '\n')
+				error("illegal suffix");
+			setnoaddr();
+			help();
+			continue;
+		}
+		newline();
+		setnoaddr();
+		if (prvmsg)
+			puts(prvmsg);
+		continue;
+
+	case 'i':
+		setdot();
+#if defined (SU3)
+		if (addr1 == zero) {
+			if (addr1 == addr2)
+				addr2++;
+			addr1++;
+			if (dol != zero)
+				nonzero();
+		} else
+#endif	/* SU3 */
+			nonzero();
+		newline();
+		checkpoint();
+		append(gettty, addr2-1);
+		if (dot == addr2-1)
+			dot++;
+		continue;
+
+
+	case 'j':
+		if (addr2==0) {
+			addr1 = dot;
+			addr2 = dot+1;
+		}
+		setdot();
+		newline();
+		nonzero();
+		checkpoint();
+		if (addr1 != addr2)
+			join();
+		continue;
+
+	case 'k':
+		if ((c = getchr()) < 'a' || c > 'z')
+			error("mark not lower case");
+		newline();
+		setdot();
+		nonzero();
+		names[c-'a'] = *addr2 & ~01;
+		anymarks |= 01;
+		continue;
+
+	case 'm':
+		move(0);
+		continue;
+
+	case '\n':
+		if (addr2==0)
+			addr2 = dot+1;
+		addr1 = addr2;
+		goto print;
+
+	case 'n':
+		numbf = 1;
+		newline();
+		goto print;
+
+	case 'N':
+		newline();
+		setnoaddr();
+		Nflag = !Nflag;
+		continue;
+
+	case 'b':
+	case 'o':
+		n = getnum();
+		newline();
+		setdot();
+		nonzero();
+		if (n >= 0) {
+			if (c == 'b')
+				bcount = n;
+			else
+				ocount = n;
+		}
+		if (c == 'b') {
+			a1 = addr2+bcount > dol ? dol : addr2 + bcount;
+			doprnt(addr1, a1);
+			dot = a1;
+		} else {
+			a1 = addr2+ocount > dol ? dol : addr2 + ocount;
+			doprnt(addr2-ocount<zero+1?zero+1:addr2-ocount, a1);
+			dot = addr2;
+		}
+		continue;
+
+	case 'l':
+		listf++;
+	case 'p':
+		newline();
+	print:
+		setdot();
+		nonzero();
+		doprnt(addr1, addr2);
+		dot = addr2;
+		continue;
+
+	case 'P':
+		setnoaddr();
+		newline();
+		Pflag = !Pflag;
+		continue;
+
+	case 'Q':
+		fchange = 0;
+	case 'q':
+		setnoaddr();
+		newline();
+		quit(0);
+
+	case 'r':
+		filename(c);
+	caseread:
+		if ((io = sopen(file, READ)) < 0) {
+			lastc = '\n';
+			error2("cannot open input file", file);
+		}
+		ioeof = 0;
+		setall();
+		ninbuf = 0;
+		if (c == 'r')
+			checkpoint();
+		n = zero != dol;
+		rspec = (c == 'e' || !n) && file[0] != '!';
+		append(getfile, addr2);
+		rspec = 0;
+		exfile();
+		fchange = n;
+		continue;
+
+	case 's':
+		setdot();
+		nonzero();
+		substitute(globp!=0);
+		continue;
+
+	case 't':
+		move(1);
+		continue;
+
+	case 'u':
+		setdot();
+		newline();
+		if (unddot == NULL)
+			error("nothing to undo");
+		undo();
+		continue;
+
+	case 'v':
+		global(0, 0);
+		continue;
+
+	case 'V':
+		global(0, 1);
+		continue;
+
+	case 'W':
+		wrapp++;
+	case 'w':
+	write:
+		setall();
+		if (zero != dol)
+			nonzero();
+		filename(c);
+		if(!wrapp ||
+		  ((io = open(file,O_WRONLY|O_APPEND)) == -1) ||
+		  ((lseek(io, 0, SEEK_END)) == -1)) {
+			struct stat	st;
+			if (lstat(file, &st) == 0 &&
+					(st.st_mode&S_IFMT) == S_IFREG &&
+					st.st_nlink == 1 &&
+					(myuid==0 || myuid==st.st_uid)) {
+				char	*cp, *tp;
+				int	nio;
+				if ((io = sopen(file, EXIST)) < 0)
+					error("cannot create output file");
+				if ((wrtemp = malloc(strlen(file)+8)) == NULL)
+					error("out of memory");
+				for (cp = file, tp = wrtemp; *cp; cp++)
+					*tp++ = *cp;
+				while (tp > wrtemp && tp[-1] != '/')
+					tp--;
+				for (cp = "\7XXXXXX"; *cp; cp++)
+					*tp++ = *cp;
+				*tp = '\0';
+				if ((nio = mkstemp(wrtemp)) < 0) {
+					free(wrtemp);
+					wrtemp = NULL;
+					ftruncate(io, 0);
+				} else {
+					close(io);
+					io = nio;
+				}
+			} else {
+				if ((io = sopen(file, WRITE)) < 0)
+					error("cannot create output file");
+			}
+		}
+		if (zero != dol) {
+			ioeof = 0;
+			wrapp = 0;
+			putfile();
+		}
+		exfile();
+		if (addr1==zero+1 && addr2==dol || addr1==addr2 && dol==zero)
+			fchange = 0;
+		if (c == 'z')
+			quit(0);
+		continue;
+
+	case 'z':
+		if ((peekc=getchr()) != '\n')
+			error("illegal suffix");
+		setnoaddr();
+		goto write;
+
+	case '=':
+		setall();
+		newline();
+		putd((addr2-zero)&MAXCNT);
+		putchr('\n');
+		continue;
+
+	case '!':
+		callunix();
+		continue;
+
+	case EOF:
+		return;
+
+	}
+	error("unknown command");
+	}
+}
+
+static long *
+address(void)
+{
+	register long *a1;
+	register int minus, c;
+	int n, relerr;
+
+	minus = 0;
+	a1 = 0;
+	for (;;) {
+		c = getchr();
+		if ('0'<=c && c<='9') {
+			n = 0;
+			do {
+				n *= 10;
+				n += c - '0';
+			} while ((c = getchr())>='0' && c<='9');
+			peekc = c;
+			if (a1==0)
+				a1 = zero;
+			if (minus<0)
+				n = -n;
+			a1 += n;
+			minus = 0;
+			continue;
+		}
+		relerr = 0;
+		if (a1 || minus)
+			relerr++;
+		switch(c) {
+		case ' ':
+		case '\t':
+			continue;
+	
+		case '+':
+			minus++;
+			if (a1==0)
+				a1 = dot;
+			continue;
+
+		case '-':
+		case '^':
+			minus--;
+			if (a1==0)
+				a1 = dot;
+			continue;
+	
+		case '?':
+		case '/':
+			compile(NULL, expbuf, &expbuf[ESIZE], c);
+			a1 = dot;
+			for (;;) {
+				if (c=='/') {
+					a1++;
+					if (a1 > dol)
+						a1 = zero;
+				} else {
+					a1--;
+					if (a1 < zero)
+						a1 = dol;
+				}
+				if (execute(0, a1, 0))
+					break;
+				if (a1==dot)
+					error("search string not found");
+			}
+			break;
+	
+		case '$':
+			a1 = dol;
+			break;
+	
+		case '.':
+			a1 = dot;
+			break;
+
+		case '\'':
+			if ((c = getchr()) < 'a' || c > 'z')
+				error("mark not lower case");
+			for (a1=zero; a1<=dol; a1++)
+				if (names[c-'a'] == (*a1 & ~01))
+					break;
+			break;
+	
+		default:
+			peekc = c;
+			if (a1==0)
+				return(0);
+			a1 += minus;
+			if (a1<zero || a1>dol)
+				error("line out of range");
+			return(a1);
+		}
+		if (relerr)
+			error("bad number");
+	}
+}
+
+static void
+setdot(void)
+{
+	if (addr2 == 0)
+		addr1 = addr2 = dot;
+	if (addr1 > addr2)
+		error("bad range");
+}
+
+static void
+setall(void)
+{
+	if (addr2==0) {
+		addr1 = zero+1;
+		addr2 = dol;
+		if (dol==zero)
+			addr1 = zero;
+	}
+	setdot();
+}
+
+static void
+setnoaddr(void)
+{
+	if (addr2)
+		error("Illegal address count");
+}
+
+static void
+nonzero(void)
+{
+	if (addr1<=zero || addr2>dol)
+		error("line out of range");
+}
+
+static void
+newline(void)
+{
+	register int c;
+
+	if ((c = getchr()) == '\n')
+		return;
+	if (c=='p' || c=='l' || c=='n') {
+		pflag++;
+		if (c=='l')
+			listf++;
+		else if (c=='n')
+			numbf = 1;
+		if (getchr() == '\n')
+			return;
+	}
+	error("illegal suffix");
+}
+
+static void
+filename(int comm)
+{
+	register char *p1, *p2;
+	register int c, i;
+
+	count = 0;
+	c = getchr();
+	if (c=='\n' || c==EOF) {
+		p1 = savedfile;
+		if (*p1==0 && comm!='f')
+			error("illegal or missing filename");
+		p2 = file;
+		while (*p2++ = *p1++)
+			;
+		return;
+	}
+	if (c!=' ')
+		error("no space after command");
+	while ((c = getchr()) == ' ')
+		;
+	if (c=='\n')
+		error("illegal or missing filename");
+	i = 0;
+	do {
+		if (i >= FNSIZE)
+			growfn("maximum of characters in file names reached");
+		file[i++] = c;
+		if (c==' ' && file[0] != '!' || c==EOF)
+			error("illegal or missing filename");
+	} while ((c = getchr()) != '\n');
+	file[i++] = 0;
+	if ((savedfile[0]==0 || comm=='e' || comm=='f') && file[0] != '!') {
+		p1 = savedfile;
+		p2 = file;
+		while (*p1++ = *p2++)
+			;
+	}
+}
+
+static void
+exfile(void)
+{
+	sclose(io);
+	io = -1;
+	if (wrtemp) {
+		extern int	rename(const char *, const char *);
+		if (rename(wrtemp, file) < 0)
+			error("cannot create output file");
+		if (myuid == 0)
+			chown(file, fstbuf.st_uid, fstbuf.st_gid);
+		chmod(file, fstbuf.st_mode & 07777);
+		free(wrtemp);
+		wrtemp = NULL;
+	}
+	if (vflag) {
+		putd(count);
+		putchr('\n');
+	}
+}
+
+static void
+onintr(int signo)
+{
+	lastsig = signo;
+	putchr('\n');
+	lastc = '\n';
+	if (readop) {
+		puts("\007read may be incomplete - beware!\007");
+		fchange = 0;
+	}
+	error("interrupt");
+}
+
+static void
+onhup(int signo)
+{
+	if (dol > zero && fchange) {
+		addr1 = zero+1;
+		addr2 = dol;
+		io = creat("ed.hup", 0666);
+		if (io < 0) {
+			char	*home = getenv("HOME");
+			if (home) {
+				char	*fn = malloc(strlen(home) + 10);
+				if (fn) {
+					strcpy(fn, home);
+					strcat(fn, "/ed.hup");
+					io = creat(fn, 0666);
+				}
+			}
+		}
+		if (io >= 0)
+			putfile();
+	}
+	fchange = 0;
+	status = 0200 | signo;
+	quit(0);
+}
+
+static void
+onpipe(int signo)
+{
+	lastsig = signo;
+	error("write or open on pipe failed");
+}
+
+static void
+error(const char *s)
+{
+	error2(s, NULL);
+}
+
+static void
+error2(const char *s, const char *fn)
+{
+	register int c;
+
+	wrapp = 0;
+	listf = 0;
+	numbf = 0;
+	errput(s, fn);
+	count = 0;
+	if (lseek(0, 0, SEEK_END) > 0)
+		status = 2;
+	pflag = 0;
+	if (globp)
+		lastc = '\n';
+	globp = 0;
+	peekc = lastc;
+	if(lastc)
+		while ((c = getchr()) != '\n' && c != EOF)
+			;
+	if (io > 0) {
+		sclose(io);
+		io = -1;
+	}
+	if (wrtemp) {
+		unlink(wrtemp);
+		free(wrtemp);
+		wrtemp = NULL;
+	}
+	longjmp(savej, 1);
+}
+
+static void
+errput(const char *s, const char *fn)
+{
+	prvmsg = s;
+	if (fn) {
+		putchr('?');
+		puts(fn);
+	} else
+		puts("?");
+	if (prhelp)
+		puts(s);
+}
+
+static int
+getchr(void)
+{
+	char c;
+	if (lastc=peekc) {
+		peekc = 0;
+		return(lastc);
+	}
+	if (globp) {
+		if ((lastc = *globp++) != 0)
+			return(lastc);
+		globp = 0;
+		return(EOF);
+	}
+	if (read(0, &c, 1) <= 0)
+		return(lastc = EOF);
+	lastc = c;
+	return(lastc);
+}
+
+static int
+gettty(void)
+{
+	register int c, i;
+	register char *gf;
+
+	i = 0;
+	gf = globp;
+	while ((c = getchr()) != '\n') {
+		if (c==EOF) {
+			if (gf)
+				peekc = c;
+			return(c);
+		}
+		if (c == 0)
+			continue;
+		if (i >= LBSIZE)
+			growlb("line too long");
+		linebuf[i++] = c;
+	}
+	if (i >= LBSIZE-2)
+		growlb("line too long");
+	linebuf[i++] = 0;
+	if (linebuf[0]=='.' && linebuf[1]==0)
+		return(EOF);
+#if !defined (SUS) && !defined (SU3)
+	if (linebuf[0]=='\\' && linebuf[1]=='.' && linebuf[2]==0)
+		linebuf[0]='.', linebuf[1]=0;
+#endif
+	return(0);
+}
+
+static long
+getnum(void)
+{
+	char	scount[20];
+	int	i;
+
+	i = 0;
+	while ((peekc=getchr()) >= '0' && peekc <= '9' && i < sizeof scount) {
+		scount[i++] = peekc;
+		peekc = 0;
+	}
+	scount[i] = '\0';
+	return i ? atol(scount) : -1;
+}
+
+static int
+getfile(void)
+{
+	register int c, i, j;
+	static int	nextj;
+
+	i = 0;
+	j = nextj;
+	do {
+		if (--ninbuf < 0) {
+			if (ioeof || (ninbuf=read(io, genbuf, LBSIZE)-1) < 0) {
+				if (ioeof == 0 && ninbuf < -1) {
+					puts("input error");
+					status = 1;
+				}
+				if (i > 0) {
+					puts("'\\n' appended");
+					c = '\n';
+					ioeof = 1;
+					goto wrc;
+				}
+				return(EOF);
+			}
+			j = 0;
+		}
+		c = genbuf[j++]&0377;
+	wrc:	if (i >= LBSIZE) {
+			lastc = '\n';
+			growlb("line too long");
+		}
+		linebuf[i++] = c ? c : '\n';
+		count++;
+	} while (c != '\n');
+	linebuf[--i] = 0;
+	nextj = j;
+	if (rspec && dot == zero)
+		fspec(linebuf);
+	if (maxlength && i > maxlength) {
+		putstr("line too long: lno = ");
+		putd((dot - zero+1)&MAXCNT);
+		putchr('\n');
+	}
+	return(0);
+}
+
+static void
+putfile(void)
+{
+	long *a1;
+	int n;
+	register char *fp, *lp;
+	register int nib;
+
+	nib = 512;
+	fp = genbuf;
+	a1 = addr1;
+	do {
+		lp = getline(*a1++, 0);
+		if (maxlength) {
+			for (n = 0; lp[n]; n++);
+			if (n > maxlength) {
+				putstr("line too long: lno = ");
+				putd((a1-1 - zero)&MAXCNT);
+				putchr('\n');
+			}
+		}
+		for (;;) {
+			if (--nib < 0) {
+				n = fp-genbuf;
+				if(write(io, genbuf, n) != n)
+					error("write error");
+				nib = 511;
+				fp = genbuf;
+			}
+			count++;
+			if ((*fp++ = *lp++) == 0) {
+				fp[-1] = '\n';
+				break;
+			} else if (fp[-1] == '\n')
+				fp[-1] = '\0';
+		}
+	} while (a1 <= addr2);
+	n = fp-genbuf;
+	if(write(io, genbuf, n) != n)
+		error("write error");
+}
+
+static int
+append(int (*f)(void), long *a)
+{
+	register long *a1, *a2, *rdot;
+	int nline, tl;
+
+	nline = 0;
+	dot = a;
+	while ((*f)() == 0) {
+		if ((dol-zero)+1 >= nlall) {
+			long *ozero = zero;
+			nlall += 512;
+			if ((zero = realloc(zero, nlall*sizeof *zero))==NULL) {
+				lastc = '\n';
+				zero = ozero;
+				error("out of memory for append");
+			}
+			dot += zero - ozero;
+			dol += zero - ozero;
+			addr1 += zero - ozero;
+			addr2 += zero - ozero;
+			if (unddot) {
+				unddot += zero - ozero;
+				unddol += zero - ozero;
+			}
+			if (undzero) {
+				ozero = undzero;
+				if ((undzero = realloc(undzero,
+						nlall*sizeof *undzero)) == 0) {
+					puts("no memory for undo");
+					free(ozero);
+				}
+			}
+		}
+		tl = putline();
+		nline++;
+		a1 = ++dol;
+		a2 = a1+1;
+		rdot = ++dot;
+		while (a1 > rdot)
+			*--a2 = *--a1;
+		*rdot = tl;
+	}
+	return(nline);
+}
+
+static void
+callunix(void)
+{
+	char	*line;
+	void (*savint)(int);
+	pid_t pid, rpid;
+	int retcode;
+
+	setnoaddr();
+	line = readcmd();
+	if ((pid = fork()) == 0) {
+		sigset(SIGHUP, oldhup);
+		sigset(SIGQUIT, oldquit);
+		sigset(SIGPIPE, oldpipe);
+		execl(SHELL, "sh", "-c", line, NULL);
+		_exit(0100);
+	} else if (pid < 0)
+		error("fork failed - try again");
+	savint = sigset(SIGINT, SIG_IGN);
+	while ((rpid = wait(&retcode)) != pid && rpid != -1)
+		;
+	sigset(SIGINT, savint);
+	if (vflag)
+		puts("!");
+}
+
+#define	cmadd(c)	((i>=cmsize ? \
+		((line=realloc(line,cmsize+=128)) == 0 ? \
+			(error("line too long"),0) : 0, 0) \
+		: 0), line[i++]=(c))
+
+static char *
+readcmd(void)
+{
+	static char	*line, *prev;
+	static int	cmsize, pvsize;
+	char	*pp;
+	int	c, mod = 0, i;
+
+	i = 0;
+	if ((c = getchr()) == '!') {
+		for (pp = prev; *pp; pp++)
+			line[i++] = *pp;
+		mod = 1;
+		c = getchr();
+	}
+	while (c != '\n' && c != EOF) {
+		if (c == '\\') {
+			c = getchr();
+			if (c != '%')
+				cmadd('\\');
+			cmadd(c);
+		} else if (c == '%') {
+			for (pp = savedfile; *pp; pp++)
+				cmadd(*pp);
+			mod = 1;
+		} else
+			cmadd(c);
+		c = getchr();
+	}
+	cmadd('\0');
+	if (pvsize < cmsize && (prev = realloc(prev, pvsize=cmsize)) == 0)
+		error("line too long");
+	strcpy(prev, line);
+	if (mod)
+		nlputs(line);
+	return line;
+}
+
+static void
+quit(int signo)
+{
+	lastsig = signo;
+	if (vflag && fchange) {
+		fchange = 0;
+		error("warning: expecting `w'");
+	}
+	if (wrtemp)
+		unlink(wrtemp);
+	unlink(tfname);
+	exit(status);
+}
+
+static void
+delete(void)
+{
+	setdot();
+	newline();
+	nonzero();
+	checkpoint();
+	rdelete(addr1, addr2);
+}
+
+static void
+rdelete(long *ad1, long *ad2)
+{
+	register long *a1, *a2, *a3;
+
+	a1 = ad1;
+	a2 = ad2+1;
+	a3 = dol;
+	dol -= a2 - a1;
+	do {
+		*a1++ = *a2++;
+	} while (a2 <= a3);
+	a1 = ad1;
+	if (a1 > dol)
+		a1 = dol;
+	dot = a1;
+	fchange = 1;
+}
+
+static void
+gdelete(void)
+{
+	register long *a1, *a2, *a3;
+
+	a3 = dol;
+	for (a1=zero+1; (*a1&01)==0; a1++)
+		if (a1>=a3)
+			return;
+	for (a2=a1+1; a2<=a3;) {
+		if (*a2&01) {
+			a2++;
+			dot = a1;
+		} else
+			*a1++ = *a2++;
+	}
+	dol = a1-1;
+	if (dot>dol)
+		dot = dol;
+	fchange = 1;
+}
+
+static char *
+getline(long tl, int nulterm)
+{
+	register char *bp, *lp;
+	register long nl;
+
+	lp = linebuf;
+	bp = getblock(tl, READ);
+	nl = nleft;
+	tl &= ~0377;
+	while (*lp++ = *bp++) {
+		if (lp[-1] == '\n' && nulterm) {
+			lp[-1] = '\0';
+			break;
+		}
+		if (--nl == 0) {
+			bp = getblock(tl+=0400, READ);
+			nl = nleft;
+		}
+	}
+	return(linebuf);
+}
+
+static int
+putline(void)
+{
+	register char *bp, *lp;
+	register long nl;
+	long tl;
+
+	fchange = 1;
+	lp = linebuf;
+	tl = tline;
+	bp = getblock(tl, WRITE);
+	nl = nleft;
+	tl &= ~0377;
+	while (*bp = *lp++) {
+		if (*bp++ == '\n' && insub) {
+			*--bp = 0;
+			linebp = lp;
+			break;
+		}
+		if (--nl == 0) {
+			bp = getblock(tl+=0400, WRITE);
+			nl = nleft;
+		}
+	}
+	nl = tline;
+	tline += (((lp-linebuf)+03)>>1)&(MAXCNT-1);
+	return(nl);
+}
+
+static char *
+getblock(long atl, long iof)
+{
+	register long bno, off;
+	
+	bno = (atl>>8)&BLKMSK;
+	off = (atl<<1)&0774;
+	if (bno >= BLKMSK) {
+		lastc = '\n';
+		error("temp file too big");
+	}
+	nleft = 512 - off;
+	if (bno==iblock) {
+		ichanged |= iof;
+		return(ibuff+off);
+	}
+	if (bno==oblock)
+		return(obuff+off);
+	if (iof==READ) {
+		if (ichanged)
+			blkio(iblock, ibuff, 1);
+		ichanged = 0;
+		iblock = bno;
+		blkio(bno, ibuff, 0);
+		return(ibuff+off);
+	}
+	if (oblock>=0)
+		blkio(oblock, obuff, 1);
+	oblock = bno;
+	return(obuff+off);
+}
+
+static void
+blkio(long b, char *buf, int wr)
+{
+	lseek(tfile, b<<9, SEEK_SET);
+	if ((wr ? write(tfile, buf, 512) : read (tfile, buf, 512)) != 512) {
+		status = 1;
+		error("I/O error on temp file");
+	}
+}
+
+static void
+init(void)
+{
+	register long *markp;
+
+	tline = 2;
+	for (markp = names; markp < &names[26]; markp++)
+		*markp = 0;
+	for (markp = undnames; markp < &undnames[26]; markp++)
+		*markp = 0;
+	subnewa = 0;
+	anymarks = 0;
+	iblock = -1;
+	oblock = -1;
+	ichanged = 0;
+	tfile = maketf(tfile);
+	dot = dol = zero;
+	unddot = NULL;
+}
+
+static void
+global(int k, int ia)
+{
+	register int c;
+	register long *a1;
+	static char *globuf;
+	char	mb[MB_LEN_MAX+1];
+	int	spflag = 0;
+
+	if (globp)
+		error("multiple globals not allowed");
+	setall();
+	nonzero();
+	if ((c=GETWC(mb))=='\n')
+		error("incomplete global expression");
+	compile(NULL, expbuf, &expbuf[ESIZE], c);
+	if (!ia) {
+		globrd(&globuf, EOF);
+		if (globuf[0] == '\n')
+			globuf[0] = 'p', globuf[1] = '\n', globuf[2] = '\0';
+	} else {
+		newline();
+		spflag = pflag;
+		pflag = 0;
+	}
+	checkpoint();
+	for (a1=zero; a1<=dol; a1++) {
+		*a1 &= ~01;
+		if (a1>=addr1 && a1<=addr2 && execute(0, a1, 0)==k)
+			*a1 |= 01;
+	}
+	/*
+	 * Special case: g/.../d (avoid n^2 algorithm)
+	 */
+	if (!ia && globuf[0]=='d' && globuf[1]=='\n' && globuf[2]=='\0') {
+		gdelete();
+		return;
+	}
+	for (a1=zero; a1<=dol; a1++) {
+		if (*a1 & 01) {
+			*a1 &= ~01;
+			dot = a1;
+			if (ia) {
+				puts(getline(*a1, 0));
+				if ((c = getchr()) == EOF)
+					error("command expected");
+				if (c == 'a' || c == 'c' || c == 'i')
+					error("a, i, or c not allowed in G");
+				else if (c == '&') {
+					if ((c = getchr()) != '\n')
+						error("end of line expected");
+					if (globuf == 0 || *globuf == 0)
+						error("no remembered command");
+				} else if (c == '\n') {
+					a1 = zero;
+					continue;
+				} else
+					globrd(&globuf, c);
+			}
+			globp = globuf;
+			commands();
+			globp = NULL;
+			a1 = zero;
+		}
+	}
+	if (ia)
+		pflag = spflag;
+}
+
+static void
+globrd(char **globuf, register int c)
+{
+	register int i;
+
+	if (*globuf == 0 && (*globuf = malloc(GBSIZE=256)) == 0)
+		error("global too long");
+	i = 0;
+	if (c != EOF)
+		(*globuf)[i++] = c;
+	while ((c = getchr()) != '\n') {
+		if (c==EOF)
+			error("incomplete global expression");
+		if (c=='\\') {
+			c = getchr();
+			if (c!='\n')
+				(*globuf)[i++] = '\\';
+		}
+		(*globuf)[i++] = c;
+		if (i>=GBSIZE-4 && (*globuf=realloc(*globuf,GBSIZE+=256)) == 0)
+			error("global too long");
+	}
+	(*globuf)[i++] = '\n';
+	(*globuf)[i++] = 0;
+}
+
+static void
+join(void)
+{
+	register int i, j;
+	register long *a1;
+
+	j = 0;
+	for (a1=addr1; a1<=addr2; a1++) {
+		i = getline(*a1, 0) - linebuf;
+		while (genbuf[j] = linebuf[i++])
+			if (j++ >= LBSIZE-2)
+				growlb("line too long");
+	}
+	i = 0;
+	j = 0;
+	while (linebuf[i++] = genbuf[j++])
+		;
+	*addr1 = putline();
+	if (addr1<addr2)
+		rdelete(addr1+1, addr2);
+	dot = addr1;
+}
+
+static void
+substitute(int inglob)
+{
+	register long *markp;
+	register long *a1;
+	intptr_t nl;
+	int gsubf;
+
+	checkpoint();
+	gsubf = compsub();
+	insub = 1;
+	for (a1 = addr1; a1 <= addr2; a1++) {
+		long *ozero;
+		if (execute(0, a1, 1)==0)
+			continue;
+		inglob |= dosub(gsubf < 2);
+		if (gsubf) {
+			int	i = 1;
+
+			while (*loc2) {
+				if (execute(1, NULL, 1)==0)
+					break;
+				inglob |= dosub(gsubf == -1 || ++i == gsubf);
+			}
+		}
+		subnewa = putline();
+		*a1 &= ~01;
+		if (anymarks) {
+			for (markp = names; markp < &names[26]; markp++)
+				if (*markp == *a1)
+					*markp = subnewa;
+		}
+		*a1 = subnewa;
+		ozero = zero;
+		nl = append(getsub, a1);
+		nl += zero-ozero;
+		a1 += nl;
+		addr2 += nl;
+	}
+	insub = 0;
+	if (inglob==0)
+		error("no match");
+}
+
+static int
+compsub(void)
+{
+	register int seof, c, i;
+	static char	*oldrhs;
+	static int	orhssz;
+	char	mb[MB_LEN_MAX+1];
+
+	if ((seof = GETWC(mb)) == '\n' || seof == ' ')
+		error("illegal or missing delimiter");
+	nodelim = 0;
+	compile(NULL, expbuf, &expbuf[ESIZE], seof);
+	i = 0;
+	for (;;) {
+		c = GETWC(mb);
+		if (c=='\\') {
+			if (i >= RHSIZE-2)
+				growrhs("replacement string too long");
+			rhsbuf[i++] = c;
+			c = GETWC(mb);
+		} else if (c=='\n') {
+			if (globp && *globp) {
+				if (i >= RHSIZE-2)
+					growrhs("replacement string too long");
+				rhsbuf[i++] = '\\';
+			}
+			else if (nodelim)
+				error("illegal or missing delimiter");
+			else {
+				peekc = c;
+				pflag++;
+				break;
+			}
+		} else if (c==seof)
+			break;
+		for (c = 0; c==0 || mb[c]; c++) {
+			if (i >= RHSIZE-2)
+				growrhs("replacement string too long");
+			rhsbuf[i++] = mb[c];
+		}
+	}
+	rhsbuf[i++] = 0;
+	if (rhsbuf[0] == '%' && rhsbuf[1] == 0) {
+		if (orhssz == 0)
+			error("no remembered replacement string");
+		strcpy(rhsbuf, oldrhs);
+	} else {
+		if (orhssz < RHSIZE &&
+				(oldrhs = realloc(oldrhs, orhssz=RHSIZE)) == 0)
+			error("replacement string too long");
+		strcpy(oldrhs, rhsbuf);
+	}
+	if ((peekc = getchr()) == 'g') {
+		peekc = 0;
+		newline();
+		return(-1);
+	} else if (peekc >= '0' && peekc <= '9') {
+		c = getnum();
+		if (c < 1 || c > LBSIZE)
+			error("invalid count");
+		newline();
+		return c;
+	}
+	newline();
+	return(0);
+}
+
+static int
+getsub(void)
+{
+	register char *p1, *p2;
+
+	p1 = linebuf;
+	if ((p2 = linebp) == 0)
+		return(EOF);
+	while (*p1++ = *p2++)
+		;
+	linebp = 0;
+	return(0);
+}
+
+static int
+dosub(int really)
+{
+	register char *lp, *sp;
+	register int i, j, k;
+	int c;
+
+	if (!really)
+		goto copy;
+	i = 0;
+	j = 0;
+	k = 0;
+	while (&linebuf[i] < loc1)
+		genbuf[j++] = linebuf[i++];
+	while (c = rhsbuf[k++]&0377) {
+		if (c=='&') {
+			j = place(j, loc1, loc2);
+			continue;
+		} else if (c == '\\') {
+			c = rhsbuf[k++]&0377;
+			if (c >='1' && c < nbra+'1') {
+				j = place(j, braslist[c-'1'], braelist[c-'1']);
+				continue;
+			}
+		}
+		if (j >= LBSIZE)
+			growlb("line too long");
+		genbuf[j++] = c;
+	}
+	i = loc2 - linebuf;
+	loc2 = j + linebuf;
+#if defined (SUS) || defined (SU3) || defined (S42)
+	if (loc1 == &linebuf[i]) {
+		int	n;
+		wchar_t	wc;
+		if (mb_cur_max > 1 && (n = mbtowc(&wc, loc2, mb_cur_max)) > 0)
+			loc2 += n;
+		else
+			loc2++;
+	}
+#endif	/* SUS || SU3 || S42 */
+	while (genbuf[j++] = linebuf[i++])
+		if (j >= LBSIZE)
+			growlb("line too long");
+	if (really) {
+		lp = linebuf;
+		sp = genbuf;
+	} else {
+	copy:	sp = linebuf;
+		lp = genbuf;
+	}
+	while (*lp++ = *sp++)
+		;
+	return really;
+}
+
+static int
+place(register int j, register const char *l1, register const char *l2)
+{
+
+	while (l1 < l2) {
+		genbuf[j++] = *l1++;
+		if (j >= LBSIZE)
+			growlb("line too long");
+	}
+	return(j);
+}
+
+static void
+move(int cflag)
+{
+	register long *adt, *ad1, *ad2;
+
+	setdot();
+	nonzero();
+	if ((adt = address())==0)
+		error("illegal move destination");
+	newline();
+	checkpoint();
+	if (cflag) {
+		long *ozero;
+		intptr_t delta;
+		ad1 = dol;
+		ozero = zero;
+		append(getcopy, ad1++);
+		ad2 = dol;
+		delta = zero - ozero;
+		ad1 += delta;
+		adt += delta;
+	} else {
+		ad2 = addr2;
+		for (ad1 = addr1; ad1 <= ad2;)
+			*ad1++ &= ~01;
+		ad1 = addr1;
+	}
+	ad2++;
+	if (adt<ad1) {
+		dot = adt + (ad2-ad1);
+		if ((++adt)==ad1)
+			return;
+		reverse(adt, ad1);
+		reverse(ad1, ad2);
+		reverse(adt, ad2);
+	} else if (adt >= ad2) {
+		dot = adt++;
+		reverse(ad1, ad2);
+		reverse(ad2, adt);
+		reverse(ad1, adt);
+	} else
+		error("illegal move destination");
+	fchange = 1;
+}
+
+static void
+reverse(register long *a1, register long *a2)
+{
+	register int t;
+
+	for (;;) {
+		t = *--a2;
+		if (a2 <= a1)
+			return;
+		*a2 = *a1;
+		*a1++ = t;
+	}
+}
+
+static int
+getcopy(void)
+{
+	if (addr1 > addr2)
+		return(EOF);
+	getline(*addr1++, 0);
+	return(0);
+}
+
+static int
+execute(int gf, long *addr, int subst)
+{
+	register char *p1, *p2, c;
+
+	for (c=0; c<NBRA; c++) {
+		braslist[c&0377] = 0;
+		braelist[c&0377] = 0;
+	}
+	if (gf) {
+		if (circf)
+			return(0);
+		p1 = linebuf;
+		p2 = genbuf;
+		while (*p1++ = *p2++)
+			;
+		locs = p1 = loc2;
+	} else {
+		if (addr==zero)
+			return(0);
+		p1 = getline(*addr, 1);
+		locs = 0;
+	}
+	needsub = subst;
+	return step(p1, expbuf);
+}
+
+static void
+cmplerr(int c)
+{
+	const char	*msg;
+
+#if !defined (SUS) && !defined (S42) && !defined (SU3)
+	expbuf[0] = 0;
+#endif
+	switch (c) {
+	case 11:
+		msg = "Range endpoint too large";
+		break;
+	case 16:
+		msg = "bad number";
+		break;
+	case 25:
+		msg = "`\\digit' out of range";
+		break;
+	case 36:
+		msg = "illegal or missing delimiter";
+		break;
+	case 41:
+		msg = "no remembered search string";
+		break;
+	case 42:
+		msg = "'\\( \\)' imbalance";
+		break;
+	case 43:
+		msg = "Too many `\\(' s";
+		break;
+	case 44:
+		msg = "more than 2 numbers given";
+		break;
+	case 45:
+		msg = "'\\}' expected";
+		break;
+	case 46:
+		msg = "first number exceeds second";
+		break;
+	case 49:
+		msg = "'[ ]' imbalance";
+		break;
+	case 50:
+		msg = "regular expression overflow";
+		break;
+	case 67:
+		msg = "illegal byte sequence";
+		break;
+	default:
+		msg = "regular expression error";
+		break;
+	}
+	error(msg);
+}
+
+static void
+doprnt(long *bot, long *top)
+{
+	long	*a1;
+
+	a1 = bot;
+	do {
+		if (numbf ^ Nflag) {
+			putd(a1-zero);
+			putchr('\t');
+		}
+		nlputs(getline(*a1++, 0));
+	} while (a1 <= top);
+	pflag = 0;
+	listf = 0;
+	numbf = 0;
+}
+
+static void
+putd(long c)
+{
+	register int r;
+
+	r = c%10;
+	c /= 10;
+	if (c)
+		putd(c);
+	putchr(r + '0');
+}
+
+static void
+nlputs(register const char *sp)
+{
+	if (listf)
+		list(sp);
+	else if (tabstops)
+		expand(sp);
+	else
+		puts(sp);
+}
+
+static void
+puts(register const char *sp)
+{
+	while (*sp) {
+		if (*sp != '\n')
+			putchr(*sp++ & 0377);
+		else
+			sp++, putchr('\0');
+	}
+	putchr('\n');
+}
+
+static void
+list(const char *lp)
+{
+	int col, n;
+	wchar_t c;
+
+	col = numbf ^ Nflag ? 8 : 0;
+	while (*lp) {
+		if (mb_cur_max > 1 && *lp&0200)
+			n = mbtowc(&c, lp, mb_cur_max);
+		else {
+			n = 1;
+			c = *lp&0377;
+		}
+		if (col+1 >= 72) {
+			col = 0;
+			putchr('\\');
+			putchr('\n');
+		}
+		if (n<0 ||
+#if defined (SUS) || defined (S42) || defined (SU3)
+				c == '\\' ||
+#endif	/* SUS || S42 || SU3 */
+				!(mb_cur_max>1 ? iswprint(c) : isprint(c))) {
+			if (n<0)
+				n = 1;
+			while (n--)
+				col += lstchr(*lp++&0377);
+		} else if (mb_cur_max>1) {
+			col += wcwidth(c);
+			while (n--)
+				putchr(*lp++&0377);
+		} else {
+			putchr(*lp++&0377);
+			col++;
+		}
+	}
+#if defined (SUS) || defined (S42) || defined (SU3)
+	putchr('$');
+#endif
+	putchr('\n');
+}
+
+static int
+lstchr(int c)
+{
+	int	cad = 1, d;
+
+#if !defined (SUS) && !defined (S42) && !defined (SU3)
+	if (c=='\t') {
+		c = '>';
+		goto esc;
+	}
+	if (c=='\b') {
+		c = '<';
+	esc:
+		putchr('-');
+		putchr('\b');
+		putchr(c);
+	} else if (c == '\n') {
+		putchr('\\');
+		putchr('0');
+		putchr('0');
+		putchr('0');
+		cad = 4;
+#else	/* !SUS, !S42, !SU3 */
+	if (c == '\n')
+		c = '\0';
+	if (c == '\\') {
+		putchr('\\');
+		putchr('\\');
+		cad = 2;
+	} else if (c == '\a') {
+		putchr('\\');
+		putchr('a');
+		cad = 2;
+	} else if (c == '\b') {
+		putchr('\\');
+		putchr('b');
+		cad = 2;
+	} else if (c == '\f') {
+		putchr('\\');
+		putchr('f');
+		cad = 2;
+	} else if (c == '\r') {
+		putchr('\\');
+		putchr('r');
+		cad = 2;
+	} else if (c == '\t') {
+		putchr('\\');
+		putchr('t');
+		cad = 2;
+	} else if (c == '\v') {
+		putchr('\\');
+		putchr('v');
+		cad = 2;
+#endif	/* !SUS, !S42, !SU3 */
+	} else {
+		putchr('\\');
+		putchr(((c&~077)>>6)+'0');
+		c &= 077;
+		d = c & 07;
+		putchr(c > d ? ((c-d)>>3)+'0' : '0');
+		putchr(d+'0');
+		cad = 4;
+	}
+	return cad;
+}
+
+static void
+putstr(const char *s)
+{
+	while (*s)
+		putchr(*s++);
+}
+
+static char	line[70];
+static char	*linp	= line;
+
+static void
+putchr(int ac)
+{
+	register char *lp;
+	register int c;
+
+	lp = linp;
+	c = ac;
+	*lp++ = c;
+	if(c == '\n' || lp >= &line[64]) {
+		linp = line;
+		write(1, line, lp-line);
+		return;
+	}
+	linp = lp;
+}
+
+static void
+checkpoint(void)
+{
+	long	*a1, *a2;
+
+	if (undzero && globp == NULL) {
+		for (a1 = zero+1, a2 = undzero+1; a1 <= dol; a1++, a2++)
+			*a2 = *a1;
+		unddot = &undzero[dot-zero];
+		unddol = &undzero[dol-zero];
+		for (a1 = names, a2 = undnames; a1 < &names[26]; a1++, a2++)
+			*a2 = *a1;
+	}
+}
+
+#define	swap(a, b)	(t = a, a = b, b = t)
+
+static void
+undo(void)
+{
+	long	*t;
+
+	if (undzero == NULL)
+		error("no undo information saved");
+	swap(zero, undzero);
+	swap(dot, unddot);
+	swap(dol, unddol);
+	swap(names, undnames);
+}
+
+static int
+maketf(int fd)
+{
+	char	*tmpdir;
+
+	if (fd == -1) {
+		if ((tmpdir = getenv("TMPDIR")) == NULL ||
+				(fd = creatf(tmpdir)) < 0)
+			if ((fd = creatf("/var/tmp")) < 0 &&
+					(fd = creatf("/tmp")) < 0)
+				error("cannot create temporary file");
+	} else
+		ftruncate(fd, 0);	/* blkio() will seek to 0 anyway */
+	return fd;
+}
+
+static int
+creatf(const char *tmpdir)
+{
+	if (strlen(tmpdir) >= sizeof tfname - 9)
+		return -1;
+	strcpy(tfname, tmpdir);
+	strcat(tfname, "/eXXXXXX");
+	return mkstemp(tfname);
+}
+
+static int
+sopen(const char *fn, int rdwr)
+{
+	int	pf[2], fd = -1;
+
+	if (fn[0] == '!') {
+		fn++;
+		if (pipe(pf) < 0)
+			error("write or open on pipe failed");
+		switch (pipid = fork()) {
+		case 0:
+			if (rdwr == READ)
+				dup2(pf[1], 1);
+			else
+				dup2(pf[0], 0);
+			close(pf[0]);
+			close(pf[1]);
+			sigset(SIGHUP, oldhup);
+			sigset(SIGQUIT, oldquit);
+			sigset(SIGPIPE, oldpipe);
+			execl(SHELL, "sh", "-c", fn, NULL);
+			_exit(0100);
+		default:
+			close(pf[rdwr == READ ? 1 : 0]);
+			fd = pf[rdwr == READ ? 0 : 1];
+			break;
+		case -1:
+			error("fork failed - try again");
+		}
+	} else if (rdwr == READ)
+		fd = open(fn, O_RDONLY);
+	else if (rdwr == EXIST)
+		fd = open(fn, O_WRONLY);
+	else /*if (rdwr == WRITE)*/
+		fd = creat(fn, 0666);
+	if (fd >= 0 && rdwr == READ)
+		readop = 1;
+	if (fd >= 0)
+		fstat(fd, &fstbuf);
+	return fd;
+}
+
+static void
+sclose(int fd)
+{
+	int	status;
+
+	close(fd);
+	if (pipid >= 0) {
+		while (wait(&status) != pipid);
+		pipid = -1;
+	}
+	readop = 0;
+}
+
+static void
+fspec(const char *lp)
+{
+	struct termios	ts;
+	const char	*cp;
+
+	freetabs();
+	maxlength = 0;
+	if (tcgetattr(1, &ts) < 0
+#ifdef	TAB3
+			|| (ts.c_oflag&TAB3) == 0
+#endif
+			)
+		return;
+	while (lp[0]) {
+		if (lp[0] == '<' && lp[1] == ':')
+			break;
+		lp++;
+	}
+	if (lp[0]) {
+		lp += 2;
+		while ((cp = ftok(&lp)) != NULL) {
+			switch (*cp) {
+			case 't':
+				freetabs();
+				if ((tabstops = tabstring(&cp[1])) == NULL)
+					goto err;
+				break;
+			case 's':
+				maxlength = atoi(&cp[1]);
+				break;
+			case 'm':
+			case 'd':
+			case 'e':
+				break;
+			case ':':
+				if (cp[1] == '>') {
+					if (tabstops == NULL)
+						if ((tabstops = tabstring("0"))
+								== NULL)
+							goto err;
+					return;
+				}
+				/*FALLTHRU*/
+			default:
+			err:	freetabs();
+				maxlength = 0;
+				errput("PWB spec problem", NULL);
+				return;
+			}
+		}
+	}
+}
+
+static const char *
+ftok(const char **lp)
+{
+	const char	*cp;
+
+	while (**lp && **lp != ':' && (**lp == ' ' || **lp == '\t'))
+		(*lp)++;
+	cp = *lp;
+	while (**lp && **lp != ':' && **lp != ' ' && **lp != '\t')
+		(*lp)++;
+	return cp;
+}
+
+static struct tabulator *
+repetitive(int repetition)
+{
+	struct tabulator	*tp, *tabspec;
+	int	col, i;
+
+	if ((tp = tabspec = calloc(1, sizeof *tp)) == NULL)
+		return NULL;
+	tp->t_rep = repetition;
+	if (repetition > 0) {
+		 for (col = 1+repetition, i = 0; i < 22; col += repetition) {
+			if ((tp->t_nxt = calloc(1, sizeof *tp)) == NULL)
+				return NULL;
+			tp = tp->t_nxt;
+			tp->t_tab = col;
+		}
+	}
+	return tabspec;
+}
+
+#define	blank(c)	((c) == ' ' || (c) == '\t')
+
+static struct tabulator *
+tablist(const char *s)
+{
+	struct tabulator	*tp, *tabspec;
+	char	*x;
+	int	prev = 0, val;
+
+	if ((tp = tabspec = calloc(1, sizeof *tp)) == NULL)
+		return NULL;
+	for (;;) {
+		while (*s == ',')
+			s++;
+		if (*s == '\0' || blank(*s) || *s == ':')
+			break;
+		val = strtol(s, &x, 10);
+		if (*s == '+')
+			val += prev;
+		prev = val;
+		if (*s == '-' || (*x != ',' && !blank(*x) && *x != ':' &&
+					*x != '\0'))
+			return NULL;
+		s = x;
+		if ((tp->t_nxt = calloc(1, sizeof *tp)) == NULL)
+			return NULL;
+		tp = tp->t_nxt;
+		tp->t_tab = val;
+	}
+	return tabspec;
+}
+
+static struct tabulator *
+tabstring(const char *s)
+{
+	const struct {
+		const char	*c_nam;
+		const char	*c_str;
+	} canned[] = {
+		{ "a",	"1,10,16,36,72" },
+		{ "a2",	"1,10,16,40,72" },
+		{ "c",	"1,8,12,16,20,55" },
+		{ "c2",	"1,6,10,14,49" },
+		{ "c3",	"1,6,10,14,18,22,26,30,34,38,42,46,50,54,58,62,67" },
+		{ "f",	"1,7,11,15,19,23" },
+		{ "p",	"1,5,9,13,17,21,25,29,33,37,41,45,49,53,57,61" },
+		{ "s",	"1,10,55" },
+		{ "u",	"1,12,20,44" },
+		{ 0,	0 }
+	};
+
+	int	i, j;
+
+	if (s[0] == '-') {
+		if (s[1] >= '0' && s[1] <= '9' && ((i = atoi(&s[1])) != 0))
+			return repetitive(i);
+		for (i = 0; canned[i].c_nam; i++) {
+			for (j = 0; canned[i].c_nam[j]; j++)
+				if (s[j+1] != canned[i].c_nam[j])
+					break;
+			if ((s[j+1]=='\0' || s[j+1]==':' || blank(s[j+1])) &&
+					canned[i].c_nam[j] == '\0')
+				return tablist(canned[i].c_str);
+		}
+		return NULL;
+	} else
+		return tablist(s);
+}
+
+static void
+freetabs(void)
+{
+	struct tabulator	*tp;
+
+	tp = tabstops;
+	while (tp) {
+		tabstops = tp->t_nxt;
+		free(tp);
+		tp = tabstops;
+	}
+}
+
+static void
+expand(const char *s)
+{
+	struct tabulator	*tp = tabstops;
+	int	col = 0, n = 1, m, tabcnt = 0, nspc;
+	wchar_t	wc;
+
+	while (*s) {
+		nspc = 0;
+		switch (*s) {
+		case '\n':
+			putchr('\0');
+			s++;
+			continue;
+		case '\t':
+			if (tp) {
+				if (tp->t_rep) {
+					if (col % tp->t_rep == 0) {
+						nspc++;
+						col++;
+					}
+					while (col % tp->t_rep) {
+						nspc++;
+						col++;
+					}
+					break;
+				}
+				while (tp && (col>tp->t_tab || tp->t_tab == 0))
+					tp = tp->t_nxt;
+				if (tp && col == tp->t_tab) {
+					nspc++;
+					col++;
+					tp = tp->t_nxt;
+				}
+				if (tp) {
+					while (col < tp->t_tab) {
+						nspc++;
+						col++;
+					}
+					tp = tp->t_nxt;
+					break;
+				}
+			}
+			tabcnt = 1;
+			nspc++;
+			break;
+		default:
+			if (mb_cur_max>1 && (n=mbtowc(&wc, s, mb_cur_max))>0) {
+				if ((m = wcwidth(wc)) > 0)
+					col += m;
+			} else {
+				col++;
+				n = 1;
+			}
+		}
+		if (maxlength && col > maxlength) {
+			putstr("\ntoo long");
+			break;
+		}
+		if (nspc) {
+			while (nspc--)
+				putchr(' ');
+			s++;
+		} else
+			while (n--)
+				putchr(*s++);
+	}
+	if (tabcnt)
+		putstr("\ntab count");
+	putchr('\n');
+}
+
+static wint_t
+GETWC(char *mb)
+{
+	int	c, n;
+
+	n = 1;
+	mb[0] = c = GETC();
+	mb[1] = '\0';
+	if (mb_cur_max > 1 && c&0200 && c != EOF) {
+		int	m;
+		wchar_t	wc;
+
+		while ((m = mbtowc(&wc, mb, mb_cur_max)) < 0 && n<mb_cur_max) {
+			mb[n++] = c = GETC();
+			mb[n] = '\0';
+			if (c == '\n' || c == EOF)
+				break;
+		}
+		if (m != n)
+			ERROR(67);
+		return wc;
+	} else
+		return c;
+}
+
+static void
+growlb(const char *msg)
+{
+	char	*olb = linebuf;
+	int	i;
+
+	LBSIZE += 512;
+	if ((linebuf = realloc(linebuf, LBSIZE)) == NULL ||
+			(genbuf = realloc(genbuf, LBSIZE)) == NULL)
+		error(msg);
+	if (linebuf != olb) {
+		loc1 += linebuf - olb;
+		loc2 += linebuf - olb;
+		for (i = 0; i < NBRA; i++) {
+			if (braslist[i])
+				braslist[i] += linebuf - olb;
+			if (braelist[i])
+				braelist[i] += linebuf - olb;
+		}
+	}
+}
+
+static void
+growrhs(const char *msg)
+{
+	RHSIZE += 256;
+	if ((rhsbuf = realloc(rhsbuf, RHSIZE)) == NULL)
+		error(msg);
+}
+
+static void
+growfn(const char *msg)
+{
+	FNSIZE += 64;
+	if ((savedfile = realloc(savedfile, FNSIZE)) == NULL ||
+			(file = realloc(file, FNSIZE)) == NULL)
+		error(msg);
+	if (FNSIZE == 64)
+		file[0] = savedfile[0] = 0;
+}
+
+#if defined (SUS) || defined (S42) || defined (SU3)
+union	ptrstore {
+	void	*vp;
+	char	bp[sizeof (void *)];
+};
+
+static void *
+fetchptr(const char *bp)
+{
+	union ptrstore	u;
+	int	i;
+
+	for (i = 0; i < sizeof (void *); i++)
+		u.bp[i] = bp[i];
+	return u.vp;
+}
+
+static void
+storeptr(void *vp, char *bp)
+{
+	union ptrstore	u;
+	int	i;
+
+	u.vp = vp;
+	for (i = 0; i < sizeof (void *); i++)
+		bp[i] = u.bp[i];
+}
+
+#define	add(c)	((i>=LBSIZE ? (growlb("regular expression overflow"),0) : 0), \
+		genbuf[i++] = (c))
+
+#define	copy(s)	{ \
+	int	m; \
+	for (m = 0; m==0 || s[m]; m++) \
+		add(s[m]); \
+}
+
+static char *
+compile(char *unused, char *ep, const char *endbuf, int seof)
+{
+	INIT
+	int	c, d, i;
+	regex_t	*rp;
+	char	*op;
+	char	mb[MB_LEN_MAX+1];
+
+	op = ep;
+	ep += 2;
+	if ((rp = fetchptr(ep)) == NULL) {
+		if ((rp = calloc(1, sizeof *rp)) == NULL)
+			ERROR(50);
+		storeptr(rp, ep);
+	}
+	ep += sizeof (void *);
+	i = 0;
+	nbra = 0;
+	do {
+		if ((c = GETWC(mb)) == seof)
+			add('\0');
+		else if (c == '\\') {
+			copy(mb);
+			c = GETWC(mb);
+			if (c == '(')
+				nbra++;
+			goto normchar;
+		} else if (c == '[') {
+			add(c);
+			d = EOF;
+			do {
+				c = GETWC(mb);
+				if (c == EOF || c == '\n')
+					ERROR(49);
+				copy(mb);
+				if (d=='[' && (c==':' || c=='.' || c=='=')) {
+					d = c;
+					do {
+						c = GETWC(mb);
+						if (c == EOF || c == '\n')
+							ERROR(49);
+						copy(mb);
+					} while (c != d || PEEKC() != ']');
+					c = GETWC(mb);
+					copy(mb);
+					c = EOF;
+				}
+				d = c;
+			} while (c != ']');
+		} else {
+			if (c == EOF || c == '\n') {
+				if (c == '\n')
+					UNGETC(c);
+				mb[0] = c = '\0';
+			}
+			if (c == '\0')
+				nodelim = 1;
+	normchar:	copy(mb);
+		}
+	} while (genbuf[i-1] != '\0');
+	if (genbuf[0]) {
+		int	reflags = 0;
+
+#ifdef	REG_ANGLES
+		reflags |= REG_ANGLES;
+#endif
+#if defined (SU3) && defined (REG_AVOIDNULL)
+		reflags |= REG_AVOIDNULL;
+#endif
+		if (op[0])
+			regfree(rp);
+		op[0] = 0;
+		switch (regcomp(rp, genbuf, reflags)) {
+		case 0:
+			break;
+		case REG_ESUBREG:
+			ERROR(25);
+			/*NOTREACHED*/
+		case REG_EBRACK:
+			ERROR(49);
+			/*NOTREACHED*/
+		case REG_EPAREN:
+			ERROR(42);
+			/*NOTREACHED*/
+		case REG_BADBR:
+		case REG_EBRACE:
+			ERROR(45);
+			/*NOTREACHED*/
+		case REG_ERANGE:
+			ERROR(11);
+			/*NOTREACHED*/
+		case REG_ESPACE:
+			ERROR(50);
+			/*NOTREACHED*/
+		default:
+			ERROR(-1);
+		}
+		op[0] = 1;
+		circf = op[1] = genbuf[0] == '^';
+	} else if (op[0]) {
+		circf = op[1];
+	} else
+		ERROR(41);
+	return ep + sizeof (void *);
+}
+
+static int
+step(const char *lp, const char *ep)
+{
+	regex_t	*rp;
+	regmatch_t	bralist[NBRA+1];
+	int	eflag = 0;
+	int	res;
+	int	i;
+
+	rp = fetchptr(&ep[2]);
+	if (ep[0] == 0)
+		return 0;
+	if (locs)
+		eflag |= REG_NOTBOL;
+	if ((res = regexec(rp, lp, needsub? NBRA+1 : 0, bralist, eflag)) == 0 &&
+			needsub) {
+		loc1 = (char *)lp + bralist[0].rm_so;
+		loc2 = (char *)lp + bralist[0].rm_eo;
+		for (i = 1; i <= NBRA; i++) {
+			if (bralist[i].rm_so != -1) {
+				braslist[i-1] = (char *)lp + bralist[i].rm_so;
+				braelist[i-1] = (char *)lp + bralist[i].rm_eo;
+			} else
+				braslist[i-1] = braelist[i-1] = NULL;
+		}
+	}
+	return res == 0;
+}
+#endif	/* SUS || S42 || SU3 */
+
+static void
+help(void)
+{
+	const char	*desc[] = {
+		"(.)a            append up to .",
+		"(.)b[n]         browse n lines",
+		"(.,.)c          change up to .",
+		"(.,.)d          delete lines",
+		"e [file]        edit file",
+		"E [file]        force edit",
+		"f [file]        print or set file",
+		"(1,$)g/RE/cmd   global cmd",
+		"(1,$)G/RE/      interactive global",
+		"h               print last error",
+		"H               toggle error messages",
+		"help            print this screen",
+		"(.)i            insert up to .",
+		"(.,.+1)j        join lines",
+		"(.)kx           mark line with x",
+		"(.,.)l          list lines",
+		"(.,.)ma         move lines to a",
+		"(.,.)n          number lines",
+		"N               revert n and p",
+		"(.)o[n]         show n lines of context",
+		"(.,.)p          print lines",
+		"P               toggle prompt",
+		"q               quit",
+		"Q               force quit",
+		"($)r            read file",
+		"(.,.)s/RE/repl/ search and replace",
+		"(.,.)s/RE/rp/g  replace all occurrences",
+		"(.,.)s/RE/rp/n  replace n-th occurrence",
+		"(.,.)ta         transfer lines to a",
+		"u               undo last change",
+		"(1,$)v/RE/cmd   reverse global",
+		"(1,$)V/RE/      reverse i/a global",
+		"(1,$)w [file]   write file",
+		"(1,$)W [file]   append to file",
+		"z               write buffer and quit",
+		"($)=            print line number",
+		"!command        execute shell command",
+		"(.+1)<newline>  print one line",
+		"/RE             find RE forwards",
+		"?RE             find RE backwards",
+		"1               first line",
+		".               current line",
+		"$               last line",
+		",               1,$",
+		";               .,$",
+		NULL
+	};
+	char	line[100];
+	int	c, half, i, k;
+
+	half = (sizeof desc / sizeof *desc) / 2;
+	for (i = 0; i < half && desc[i]; i++) {
+		c = 0;
+		for (k = 0; desc[i][k]; k++)
+			line[c++] = desc[i][k];
+		if (desc[i+half]) {
+			while (c < 40)
+				line[c++] = ' ';
+			for (k = 0; desc[i+half][k]; k++)
+				line[c++] = desc[i+half][k];
+		}
+		line[c] = 0;
+		puts(line);
+	}
+}