예제 #1
0
파일: ex_init.c 프로젝트: n-t-roff/ex-1.1
void
initoptions(char f)
{
	char Home[40];
	register char *H;

	intty = isatty(0);
	if (!intty && f == 0) {
unknown:
		return;
	}
	if (gTTY(1)) {
		if (f == 0 || gTTY(2))
			goto unknown;
		f = 2;
	} else
		f = 1;
#ifdef IUCLC
	UPPERCASE = (tty.c_iflag & IUCLC) != 0;
#endif
#ifdef TAB3
	PT = (tty.c_oflag & TABDLY) != TAB3;
#endif
	NOCR = (tty.c_oflag & ONLCR) == 0;
	H = getenv("HOME");
	strcpy(Home, H);
	strcat(Home, "/.exrc");
	source(Home, 1);
}
예제 #2
0
파일: ex_put.c 프로젝트: chungy/ex-vi
/*
 * Prep tty for open mode.
 */
struct termios
ostart(void)
{
	struct termios f;

	if (!intty)
		error(catgets(catd, 1, 120,
				"Open and visual must be used interactively"));
	gTTY(1);
	normtty++;
	f = tty;
	tty = normf;
	tty.c_iflag &= ~ICRNL;
	tty.c_lflag &= ~(ECHO|ICANON);
	tty.c_oflag &= ~(ONLCR
#if defined (TAB3)
			| TAB3
#elif defined (XTABS)
			| XTABS
#endif
			);
	tty.c_cc[VMIN] = 1;
	tty.c_cc[VTIME] = 1;
	ttcharoff();
	sTTY(1);
	tostart();
	pfast |= 2;
	return (f);
}
예제 #3
0
파일: ex.c 프로젝트: n-t-roff/ex-2.2
/*
 * 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" or "vi"
 * and the distinction is made here.  Actually, we are "vi" if
 * there is a 'v' in our name, 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, setting the external initev so
 * the q command in visual doesn't give command mode.
 */
int
main(int ac, char **av)
{
#if 0
	char *erpath = EXSTRINGS;
#endif
	register char *cp;
	register int c;
	bool recov = 0;
	bool ivis = any('v', av[0]);
	bool itag = 0;
	bool fast = 0;
#ifdef TRACE
	register char *tracef;
#endif

	/*
	 * Immediately grab the tty modes so that we wont
	 * get messed up if an interrupt comes in quickly.
	 */
	gTTY(1);
	normf = tty;

#if 0
	/*
	 * For debugging take files out of . if name is a.out.
	 * If a 'd' in our name, then set options for edit.
	 */
	if (av[0][0] == 'a')
		erpath += 9;
#endif
	if (ivis) {
		options[MAGIC].odefault = value(MAGIC) = 0;
		options[BEAUTIFY].odefault = value(BEAUTIFY) = 1;
	} else if (any('d', av[0])) {
		value(OPEN) = 0;
		value(REPORT) = 1;
		value(MAGIC) = 0;
	}

	/*
	 * Open the error message file.
	 */
	draino();
#if 0
	erfile = open(erpath, 0);
	if (erfile < 0) {
		flush();
		exit(1);
	}
#endif
	pstop();

	/*
	 * Initialize interrupt handling.
	 */
	oldhup = signal(SIGHUP, SIG_IGN);
	if (oldhup == SIG_DFL)
		signal(SIGHUP, onhup);
	oldquit = signal(SIGQUIT, SIG_IGN);
	ruptible = signal(SIGINT, SIG_IGN) == SIG_DFL;
	if (signal(SIGTERM, SIG_IGN) == SIG_DFL)
		signal(SIGTERM, onhup);

	/*
	 * 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.
	 */
#ifdef UNIX_SBRK
	fendcore = (line *) sbrk(0);
	endcore = fendcore - 2;
#else
# define LINELIMIT 0x8000
	fendcore = malloc(LINELIMIT * sizeof(line *));
	endcore = fendcore + LINELIMIT - 1;
#endif

	/*
	 * Process flag arguments.
	 */
	ac--, av++;
	while (ac && av[0][0] == '-') {
		c = av[0][1];
		if (c == 0) {
			hush = 1;
			value(AUTOPRINT) = 0;
			fast++;
		} else switch (c) {

#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");
			if (trace == NULL)
				ex_printf("Trace create error\n");
			setbuf(trace, tracbuf);
			break;

#endif

#ifdef LISP
		case 'l':
			value(LISP) = 1;
			value(SHOWMATCH) = 1;
			break;
#endif

		case 'r':
			recov++;
			break;

		case 't':
			if (ac > 1 && av[1][0] != '-') {
				ac--, av++;
				itag = 1;
				/* BUG: should check for too long tag. */
				CP(lasttag, av[0]);
			}
			break;

		case 'v':
			globp = "";
			ivis = 1;
			break;

		default:
			smerror("Unknown option %s\n", av[0]);
			break;
		}
		ac--, av++;
	}
	if (ac && av[0][0] == '+') {
		firstln = getn(av[0] + 1);
		if (firstln == 0)
			firstln = 20000;
		ac--, av++;
	}

	/*
	 * 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) {
			die++;
			setrupt();
			execl(EXRECOVER, "exrecover", "-r", NULL);
			filioerr(EXRECOVER);
			exit(1);
		}
		CP(savedfile, *av);
		av++, 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.
	 */
	init();
	if (setexit() == 0) {
		setrupt();
		intty = isatty(0);
		if (fast || !intty)
			setterm("dumb");
		else {
			gettmode();
			if ((cp = getenv("TERM")) != 0)
				setterm(cp);
			if ((cp = getenv("HOME")) != 0)
				source(strcat(strcpy(genbuf, cp), "/.exrc"), 1);
		}
	}

	/*
	 * 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 (itag)
			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.
	 */
	ungetchar(0);
	globp = 0;
	initev = 0;
	setlastchar('\n');
	setexit();
	commands(0, 0);
	cleanup(1);
	return 0;
}
예제 #4
0
파일: ex.c 프로젝트: n-t-roff/ex-3.6
/*
 * 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(int ac, char **av)
{
#ifndef VMUNIX
	char *erpath = EXSTRINGS;
#endif
	register char *cp;
	register int c;
	bool recov = 0;
	bool ivis;
	bool itag = 0;
	bool fast = 0;
#ifdef TRACE
	register char *tracef;
#endif

	/*
	 * Immediately grab the tty modes so that we wont
	 * get messed up if an interrupt comes in quickly.
	 */
	gTTY(1);
#ifndef USG3TTY
	normf = tty.sg_flags;
#else
	normf = tty;
#endif
	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(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
	/*
	 * Open the error message file.
	 */
	draino();
#ifndef VMUNIX
	erfile = open(erpath+4, O_RDONLY);
	if (erfile < 0) {
		erfile = open(erpath, O_RDONLY);
	}
#endif
	pstop();

	/*
	 * Initialize interrupt handling.
	 */
	oldhup = signal(SIGHUP, SIG_IGN);
	if (oldhup == SIG_DFL)
		signal(SIGHUP, onhup);
	oldquit = signal(SIGQUIT, SIG_IGN);
	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

	/*
	 * 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.
	 */
#ifdef UNIX_SBRK
	fendcore = (line *) sbrk(0);
	endcore = fendcore - 2;
#else
# define LINELIMIT 0x8000
	fendcore = malloc(LINELIMIT * sizeof(line *));
	endcore = fendcore + LINELIMIT - 1;
#endif

	/*
	 * Process flag arguments.
	 */
	ac--, av++;
	while (ac && av[0][0] == '-') {
		c = av[0][1];
		if (c == 0) {
			hush = 1;
			value(AUTOPRINT) = 0;
			fast++;
		} else switch (c) {

		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");
			if (trace == NULL)
				ex_printf("Trace create error\n");
			setbuf(trace, tracbuf);
			break;

#endif

#ifdef LISPCODE
		case 'l':
			value(LISP) = 1;
			value(SHOWMATCH) = 1;
			break;
#endif

		case 'r':
			recov++;
			break;

		case 't':
			if (ac > 1 && av[1][0] != '-') {
				ac--, av++;
				itag = 1;
				/* BUG: should check for too long tag. */
				CP(lasttag, av[0]);
			}
			break;

		case 'v':
			ivis = 1;
			break;

		case 'w':
			defwind = 0;
			if (av[0][2] == 0) defwind = 3;
			else for (cp = &av[0][2]; isdigit((int)*cp); cp++)
				defwind = 10*defwind + *cp - '0';
			break;

#ifdef CRYPT
		case 'x':
			/* -x: encrypted mode */
			xflag = 1;
			break;
#endif

		default:
			smerror("Unknown option %s\n", av[0]);
			break;
		}
		ac--, av++;
	}

#ifdef SIGTSTP
	if (!hush && signal(SIGTSTP, SIG_IGN) == SIG_DFL)
		signal(SIGTSTP, onsusp), dosusp++;
#endif

	if (ac && av[0][0] == '+') {
		firstpat = &av[0][1];
		ac--, av++;
	}

#ifdef CRYPT
	if(xflag){
		key = getpass(KEYPROMPT);
		kflag = crinit(key, perm);
	}
#endif

	/*
	 * 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", NULL);
			filioerr(EXRECOVER);
			ex_exit(1);
		}
		CP(savedfile, *av);
		av++, 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")))
			CP(shell, cp);
		if (fast || !intty)
			setterm("dumb");
		else {
			gettmode();
			if ((cp = getenv("TERM")) != 0 && *cp)
				setterm(cp);
		}
	}
	if (setexit() == 0 && !fast && intty) {
		if ((globp = getenv("EXINIT")) && *globp)
			commands(1,1);
		else {
			globp = 0;
			if ((cp = getenv("HOME")) != 0 && *cp)
				source(strcat(strcpy(genbuf, cp), "/.exrc"), 1);
		}
	}
	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 (itag)
			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);
	return 0;
}