move vi to separate repo

1 files changed, 0 insertions, 686 deletions

diff --git a/src/vi/ex-070224/ex.c b/src/vi/ex-070224/ex.c
deleted file mode 100644
index caf88f2..0000000
--- a/src/vi/ex-070224/ex.c
+++ /dev/null
@@ -1,686 +0,0 @@
-/*
- * This code contains changes by
- *      Gunnar Ritter, Freiburg i. Br., Germany, 2002. All rights reserved.
- *
- * Conditions 1, 2, and 4 and the no-warranty notice below apply
- * to these changes.
- *
- *
- * Copyright (c) 1980, 1993
- * 	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. 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.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS OR CONTRIBUTORS 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.
- *
- *
- * 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.
- */
-
-#ifndef	lint
-#ifdef	DOSCCS
-char *copyright =
-"@(#) Copyright (c) 1980 Regents of the University of California.\n\
- All rights reserved.\n";
-
-static char sccsid[] = "@(#)ex.c	1.37 (gritter) 8/4/05";
-#endif	/* DOSCCS */
-#endif	/* !lint */
-
-/* from ex.c	7.5.1.1 (Berkeley) 8/12/86 */
-
-#include "ex.h"
-#include "ex_argv.h"
-#include "ex_temp.h"
-#include "ex_tty.h"
-#include "brk_shim.h"
-
-#ifdef TRACE
-char	tttrace[]	= { '/','d','e','v','/','t','t','y','x','x',0 };
-#endif
-
-/*
- * The code for ex is divided as follows:
- *
- * ex.c			Entry point and routines handling interrupt, hangup
- *			signals; initialization code.
- *
- * ex_addr.c		Address parsing routines for command mode decoding.
- *			Routines to set and check address ranges on commands.
- *
- * ex_cmds.c		Command mode command decoding.
- *
- * ex_cmds2.c		Subroutines for command decoding and processing of
- *			file names in the argument list.  Routines to print
- *			messages and reset state when errors occur.
- *
- * ex_cmdsub.c		Subroutines which implement command mode functions
- *			such as append, delete, join.
- *
- * ex_data.c		Initialization of options.
- *
- * ex_get.c		Command mode input routines.
- *
- * ex_io.c		General input/output processing: file i/o, unix
- *			escapes, filtering, source commands, preserving
- *			and recovering.
- *
- * ex_put.c		Terminal driving and optimizing routines for low-level
- *			output (cursor-positioning); output line formatting
- *			routines.
- *
- * ex_re.c		Global commands, substitute, regular expression
- *			compilation and execution.
- *
- * ex_set.c		The set command.
- *
- * ex_subr.c		Loads of miscellaneous subroutines.
- *
- * ex_temp.c		Editor buffer routines for main buffer and also
- *			for named buffers (Q registers if you will.)
- *
- * ex_tty.c		Terminal dependent initializations from termcap
- *			data base, grabbing of tty modes (at beginning
- *			and after escapes).
- *
- * ex_unix.c		Routines for the ! command and its variations.
- *
- * ex_v*.c		Visual/open mode routines... see ex_v.c for a
- *			guide to the overall organization.
- */
-
-static char *progname;
-
-void 
-erropen(void)
-{
-	close(1);
-	dup(2);
-}
-
-void 
-usage(void)
-{
-	printf(catgets(catd, 1, 1, "\
-Usage: %s [- | -s] [-l] [-L] [-R] [-r [file]] [-t tag]\n\
-       [-v] [-V] [-w size] [+cmd | -c cmd] file...\n"),
-		progname);
-	flush();
-	exitex(1);
-}
-
-void
-needarg(int c)
-{
-	erropen();
-	printf(catgets(catd, 1, 2,
-		"%s: option requires an argument -- %c\n"), progname, c);
-	usage();
-}
-
-void
-invopt(int c)
-{
-	erropen();
-	printf(catgets(catd, 1, 3, "%s: illegal option -- %c\n"), progname, c);
-	usage();
-}
-
-/*
- * Return last component of unix path name p.
- */
-char *
-tailpath(register char *p)
-{
-	register char *r;
-
-	for (r=p; *p; p++)
-		if (*p == '/')
-			r = p+1;
-	return(r);
-}
-
-/*
- * Check ownership of file.  Return nonzero if it exists and is owned by the
- * user or the option sourceany is used
- */
-int 
-iownit(char *file)
-{
-	struct stat sb;
-
-	if (*file == '.' && value(EXRC) == 0)
-		return 0;
-	if (stat(file, &sb))
-		return 0;
-	if (value(SOURCEANY))
-		return 1;
-	if (sb.st_uid != getuid())
-		return 0;
-	if (sb.st_mode & (S_IWOTH | S_IWGRP))
-		return 0;
-	return 1;
-}
-
-shand 
-setsig(int signum, shand handler)
-{
-	struct sigaction nact, oact;
-
-	nact.sa_handler = handler;
-	sigemptyset(&nact.sa_mask);
-	nact.sa_flags = 0;
-	if (signum == SIGALRM) {
-#ifdef	SA_INTERRUPT
-		nact.sa_flags |= SA_INTERRUPT;
-#endif
-	/*EMPTY*/ ;
-	} else {
-#ifdef	SA_RESTART
-		nact.sa_flags |= SA_RESTART;
-#endif
-	/*EMPTY*/ ;
-	}
-	if (sigaction(signum, &nact, &oact) != 0)
-		return SIG_ERR;
-	return oact.sa_handler;
-}
-
-/*
- * Initialization, before editing a new file.
- * Main thing here is to get a new buffer (in fileinit),
- * rest is peripheral state resetting.
- */
-void 
-init(void)
-{
-	register int i;
-
-	fileinit();
-	dot = zero = truedol = unddol = dol = fendcore;
-	one = zero+1;
-	undkind = UNDNONE;
-	chng = 0;
-	edited = 0;
-	for (i = 0; i <= 'z'-'a'+1; i++)
-		names[i] = 1;
-	anymarks = 0;
-}
-
-/*
- * Main procedure.  Process arguments and then
- * transfer control to the main command processing loop
- * in the routine commands.  We are entered as either "ex", "edit", "vi"
- * or "view" and the distinction is made here.  Actually, we are "vi" if
- * there is a 'v' in our name, "view" is there is a 'w', and "edit" if
- * there is a 'd' in our name.  For edit we just diddle options;
- * for vi we actually force an early visual command.
- */
-int 
-main(register int ac, register char *av[])
-{
-#ifndef VMUNIX
-	char *erpath = EXSTRINGS;
-#endif
-	char *cp = NULL;
-	register int c;
-	bool ivis;
-	bool fast = 0;
-#ifdef TRACE
-	register char *tracef;
-#endif
-
-	CLOBBGRD(ivis);
-	CLOBBGRD(fast);
-	CLOBBGRD(cp);
-
-	/*
-	 * Initialize the built-in memory allocator.
-	 */
-#ifdef	VMUNIX
-	poolsbrk(0);
-#endif
-
-	/*
-	 * Initialize the primary buffers which were originally static.
-	 * NOTE: Most of this must be repeated in ex_recover.c.
-	 */
-	linebuf = calloc(LBSIZE = BUFSIZ<4096?4096:BUFSIZ, sizeof *linebuf);
-	genbuf = calloc(MAXBSIZE, sizeof *genbuf);
-
-	/*
-	 * Immediately grab the tty modes so that we wont
-	 * get messed up if an interrupt comes in quickly.
-	 */
-	gTTY(1);
-	normf = tty;
-	ppid = getpid();
-	/*
-	 * Defend against d's, v's, w's, and a's in directories of
-	 * path leading to our true name.
-	 */
-	av[0] = tailpath(av[0]);
-
-	/*
-	 * Figure out how we were invoked: ex, edit, vi, view.
-	 */
-	ivis = any('v', av[0]);	/* "vi" */
-	if (any('w', av[0]))	/* "view" */
-		value(READONLY) = 1;
-	if (any('d', av[0])) {	/* "edit" */
-		value(SHOWMODE) = 1;
-		/*
-		 * I do not understand why novices should not
-		 * switch to visual mode. So they can now. gritter
-		 */
-		/*value(OPEN) = 0;*/
-		value(REPORT) = 1;
-		value(MAGIC) = 0;
-	}
-
-#ifndef VMUNIX
-	/*
-	 * For debugging take files out of . if name is a.out.
-	 */
-	if (av[0][0] == 'a')
-		erpath = tailpath(erpath);
-#endif	/* !VMUNIX */
-
-	progname = av[0];
-	/*
-	 * Open the error message file.
-	 */
-	draino();
-#ifndef VMUNIX
-	erfile = open(erpath+4, O_RDONLY);
-	if (erfile < 0) {
-		erfile = open(erpath, O_RDONLY);
-	}
-#endif	/* !VMUNIX */
-	pstop();
-
-	/*
-	 * Initialize interrupt handling.
-	 */
-	oldhup = signal(SIGHUP, SIG_IGN);
-	if (oldhup == SIG_DFL)
-		signal(SIGHUP, onhup);
-	oldquit = signal(SIGQUIT, SIG_IGN);
-#ifdef	SIGXFSZ
-	oldxfsz = signal(SIGXFSZ, SIG_IGN);
-#endif
-	ruptible = signal(SIGINT, SIG_IGN) == SIG_DFL;
-	if (signal(SIGTERM, SIG_IGN) == SIG_DFL)
-		signal(SIGTERM, onhup);
-#ifdef	SIGEMT
-	if (signal(SIGEMT, SIG_IGN) == SIG_DFL)
-		signal(SIGEMT, onemt);
-#endif
-
-#ifdef	BIT8
-#ifndef	ISO8859_1
-	setlocale(LC_CTYPE, "");
-#endif
-#endif
-
-#ifdef	MB_CUR_MAX
-	mb_cur_max = MB_CUR_MAX;
-#else
-	mb_cur_max = 1;
-#endif
-
-#ifdef	MB
-	TRIM = mb_cur_max > 1 ? 0x6fffffff : 0xff;
-	QUOTE = mb_cur_max > 1 ? 0x10000000 : 0x100;
-#endif
-
-#ifdef	LANGMSG
-	setlocale(LC_MESSAGES, "");
-	catd = catopen(CATNAME, NL_CAT_LOCALE);
-#endif
-
-	/*
-	 * Process flag arguments.
-	 */
-	ac--, av++;
-	while (ac) {
-		if (av[0][0] == '+') {
-			firstpat = &av[0][1];
-			if (*firstpat == '\0')
-				needarg('+');
-		} else if (av[0][0] == '-') {
-arggroup:
-		c = av[0][1];
-		if (c == 0
-			|| c == 's'
-				) {
-			hush = 1;
-			value(AUTOPRINT) = 0;
-			fast++;
-		} else switch (c) {
-
-		case '-':
-			if (av[0][2])
-				invopt('-');
-			ac--, av++;
-			goto argend;
-
-		case 'R':
-			value(READONLY) = 1;
-			break;
-
-#ifdef TRACE
-		case 'T':
-			if (av[0][2] == 0)
-				tracef = "trace";
-			else {
-				tracef = tttrace;
-				tracef[8] = av[0][2];
-				if (tracef[8])
-					tracef[9] = av[0][3];
-				else
-					tracef[9] = 0;
-			}
-			trace = fopen(tracef, "w");
-#define tracbuf NULL
-			if (trace == NULL)
-				printf(catgets(catd, 1, 4,
-						"Trace create error\n"));
-			else
-				setbuf(trace, tracbuf);
-			break;
-
-#endif	/* TRACE */
-
-		case 'c':
-			if (av[0][2] == '\0' && (av[1] == NULL
-					|| *av[1] == '-' || *av[1] == '+'))
-				needarg('c');
-			if (av[0][2]) {
-				firstpat = &av[0][2];
-			} else {
-				firstpat = av[1];
-				ac--, av++;
-			}
-			break;
-
-		case 'e':
-			ivis = 0;
-			break;
-
-#ifdef LISPCODE
-		case 'l':
-			value(LISP) = 1;
-			value(SHOWMATCH) = 1;
-			break;
-#endif
-
-		case 'L':
-		case 'r':
-			recov++;
-			break;
-
-		case 't':
-			if (av[0][2]) {
-				tflag = 1;
-				safecp(lasttag, av[0], sizeof lasttag,
-						"argument to -t too long");
-			} else if (ac > 1 && av[1][0] != '-' &&
-					av[1][0] != '+') {
-				ac--, av++;
-				tflag = 1;
-				safecp(lasttag, av[0], sizeof lasttag,
-						"argument to -t too long");
-			} else
-				needarg('t');
-			break;
-
-		case 'v':
-			ivis = 1;
-			break;
-
-		case 'V':
-			verbose = 1;
-			break;
-
-		case 'w':
-			if (av[0][2])
-				cp = &av[0][2];
-			else if (ac > 1 && av[1][0] != '-' && av[1][0] != '+') {
-				cp = av[1];
-				ac--, av++;
-			} else
-				needarg('w');
-			defwind = atoi(cp);
-			break;
-
-		default:
-			invopt(c);
-		}
-		if (c && c != 'c' && c != 't' && c != 'w' && av[0][2]) {
-			av[0]++;
-			goto arggroup;
-		}
-	    } else
-		    break;
-		ac--, av++;
-	}
-argend:
-
-	cntrlhm = catgets(catd, 1, 70, "^H discarded\n");
-	/*
-	 * Initialize end of core pointers.
-	 * Normally we avoid breaking back to fendcore after each
-	 * file since this can be expensive (much core-core copying).
-	 * If your system can scatter load processes you could do
-	 * this as ed does, saving a little core, but it will probably
-	 * not often make much difference.
-	 */
-	fendcore = (line *) shim_sbrk(0);
-	endcore = fendcore - 2;
-
-#ifdef SIGTSTP
-	if (!hush && signal(SIGTSTP, SIG_IGN) == SIG_DFL)
-		signal(SIGTSTP, onsusp), dosusp++;
-#endif	/* SIGTSTP */
-
-	/*
-	 * If we are doing a recover and no filename
-	 * was given, then execute an exrecover command with
-	 * the -r option to type out the list of saved file names.
-	 * Otherwise set the remembered file name to the first argument
-	 * file name so the "recover" initial command will find it.
-	 */
-	if (recov) {
-		if (ac == 0) {
-			ppid = 0;
-			setrupt();
-			execl(EXRECOVER, "exrecover", "-r", (char *)0);
-			filioerr(EXRECOVER);
-			exitex(1);
-		}
-		safecp(savedfile, *av++, sizeof savedfile, "Filename too long");
-		ac--;
-	}
-
-	/*
-	 * Initialize the argument list.
-	 */
-	argv0 = av;
-	argc0 = ac;
-	args0 = av[0];
-	erewind();
-
-	/*
-	 * Initialize a temporary file (buffer) and
-	 * set up terminal environment.  Read user startup commands.
-	 */
-	if (setexit() == 0) {
-		setrupt();
-		intty = isatty(0);
-		value(PROMPT) = intty;
-		if ((cp = getenv("SHELL")) != NULL && *cp != '\0')
-			safecp(shell, cp, sizeof shell, "$SHELL too long");
-		if (fast || !intty)
-			setterm("dumb");
-		else {
-			gettmode();
-			if ((cp = getenv("TERM")) != 0 && *cp) {
-				setterm(cp);
-			}
-		}
-	}
-	if (setexit() == 0) {
-		/*
-		 * This is necessary because 'if (setexit() == 0 && !fast)'
-		 * is rejected on the Cray.
-		 */
-		if (fast)
-			goto skip;
-		if ((globp = getenv("EXINIT")) && *globp)
-			commands(1,1);
-		else {
-			globp = 0;
-			if ((cp = getenv("HOME")) != 0 && *cp) {
-				safecat(safecp(genbuf, cp, MAXBSIZE,
-							"$HOME too long"),
-						"/.exrc", MAXBSIZE,
-						"$HOME too long");
-				if (iownit(genbuf))
-					source(genbuf, 1);
-			}
-		}
-		/*
-		 * Allow local .exrc too.  This loses if . is $HOME,
-		 * but nobody should notice unless they do stupid things
-		 * like putting a version command in .exrc.  Besides,
-		 * they should be using EXINIT, not .exrc, right?
-		 *
-		 * This may not be done anymore. GR
-		 */
-		/*
-		 * The getcwd() function is not present on very
-		 * old Unix systems. So if this fails, comment out
-		 * the following three lines or supply code e.g. from
-		 * the `pwd' utility.
-		 */
-		if (cp == NULL || *cp == '\0'
-				|| getcwd(genbuf, MAXBSIZE) == NULL
-				|| strcmp(cp, genbuf) != 0)
-
-		if (iownit(".exrc"))
-			source(".exrc", 1);
-	}
-skip:	init();	/* moved after prev 2 chunks to fix directory option */
-
-	/*
-	 * Initial processing.  Handle tag, recover, and file argument
-	 * implied next commands.  If going in as 'vi', then don't do
-	 * anything, just set initev so we will do it later (from within
-	 * visual).
-	 */
-	if (setexit() == 0) {
-		if (recov)
-			globp = "recover";
-		else if (tflag)
-			globp = ivis ? "tag" : "tag|p";
-		else if (argc)
-			globp = "next";
-		if (ivis)
-			initev = globp;
-		else if (globp) {
-			inglobal = 1;
-			commands(1, 1);
-			inglobal = 0;
-		}
-	}
-
-	/*
-	 * Vi command... go into visual.
-	 * Strange... everything in vi usually happens
-	 * before we ever "start".
-	 */
-	if (ivis) {
-		/*
-		 * Don't have to be upward compatible with stupidity
-		 * of starting editing at line $.
-		 */
-		if (dol > zero)
-			dot = one;
-		globp = "visual";
-		if (setexit() == 0)
-			commands(1, 1);
-	}
-
-	/*
-	 * Clear out trash in state accumulated by startup,
-	 * and then do the main command loop for a normal edit.
-	 * If you quit out of a 'vi' command by doing Q or ^\,
-	 * you also fall through to here.
-	 */
-	seenprompt = 1;
-	ungetchar(0);
-	globp = 0;
-	initev = 0;
-	setlastchar('\n');
-	setexit();
-	commands(0, 0);
-	cleanup(1);
-	exitex(0);
-	/*NOTREACHED*/
-	return 0;
-}