Пример #1
0
static void
ensure_m4path(void)
{
	static int envpathdone = 0;
	char *envpath;
	char *sweep;
	char *path;

	if (envpathdone)
		return;
	envpathdone = TRUE;
	envpath = getenv("M4PATH");
	if (!envpath)
		return;
	/* for portability: getenv result is read-only */
	envpath = xstrdup(envpath);
	for (sweep = envpath;
	    (path = strsep(&sweep, ":")) != NULL;)
	    addtoincludepath(path);
	free(envpath);
}
Пример #2
0
int
main(int argc, char *argv[])
{
	int c;
	int n;
	int rval;
	char *p;

	setlocale(LC_ALL, "");

	traceout = stderr;

	if (signal(SIGINT, SIG_IGN) != SIG_IGN)
		signal(SIGINT, onintr);

	initkwds();
	initspaces();
	STACKMAX = INITSTACKMAX;

	mstack = (stae *)xalloc(sizeof(stae) * STACKMAX);
	sstack = (char *)xalloc(STACKMAX);

	maxout = 0;
	outfile = NULL;
	resizedivs(MAXOUT);

	while ((c = getopt(argc, argv, "gst:d:D:U:o:I:")) != -1)
		switch(c) {
		case 'D':               /* define something..*/
			for (p = optarg; *p; p++)
				if (*p == '=')
					break;
			if (p == optarg)
				errx(1, "null variable cannot be defined");
			if (*p)
				*p++ = EOS;
			dodefine(optarg, p);
			break;
		case 'I':
			addtoincludepath(optarg);
			break;
		case 'U':               /* undefine...       */
			remhash(optarg, TOP);
			break;
		case 'g':
			mimic_gnu = 1;
			break;
		case 'd':
			set_trace_flags(optarg);
			break;
		case 's':
			synccpp = 1;
			break;
		case 't':
			mark_traced(optarg, 1);
			break;
		case 'o':
			trace_file(optarg);
                        break;
		case '?':
		default:
			usage();
		}

        argc -= optind;
        argv += optind;

	rval = 0;
	active = stdout;		/* default active output     */
	bbase[0] = bufbase;
        if (!argc) {
 		sp = -1;		/* stack pointer initialized */
		fp = 0; 		/* frame pointer initialized */
		set_input(infile+0, stdin, "stdin");
					/* default input (naturally) */
		if ((inname[0] = strdup("-")) == NULL)
			err(1, NULL);
		inlineno[0] = 1;
		emitline();
		macro();
	} else
		for (; argc--; ++argv) {
			p = *argv;
			if (p[0] == '-' && p[1] == EOS)
				set_input(infile, stdin, "stdin");
			else if (fopen_trypath(infile, p) == NULL) {
				warn("%s", p);
				rval = 1;
				continue;
			}
			sp = -1;
			fp = 0;
			if ((inname[0] = strdup(p)) == NULL)
				err(1, NULL);
			inlineno[0] = 1;
			emitline();
			macro();
		    	release_input(infile);
		}

	if (*m4wraps) { 		/* anything for rundown ??   */
		ilevel = 0;		/* in case m4wrap includes.. */
		bufbase = bp = buf;	/* use the entire buffer   */
		pbstr(m4wraps); 	/* user-defined wrapup act   */
		macro();		/* last will and testament   */
	}

	if (active != stdout)
		active = stdout;	/* reset output just in case */
	for (n = 1; n < maxout; n++)	/* default wrap-up: undivert */
		if (outfile[n] != NULL)
			getdiv(n);
					/* remove bitbucket if used  */
	if (outfile[0] != NULL) {
		(void) fclose(outfile[0]);
	}

	exit(rval);
}
Пример #3
0
int
main(int argc, char *argv[])
{
	int c;
	int n;
	char *p;

	if (signal(SIGINT, SIG_IGN) != SIG_IGN)
		signal(SIGINT, onintr);

	init_macros();
	initspaces();
	STACKMAX = INITSTACKMAX;

	mstack = xreallocarray(NULL, STACKMAX, sizeof(stae), NULL);
	sstack = xalloc(STACKMAX, NULL);

	maxout = 0;
	outfile = NULL;
	resizedivs(MAXOUT);

	while ((c = getopt(argc, argv, "gst:d:D:U:o:I:P")) != -1)
		switch(c) {

		case 'D':               /* define something..*/
			for (p = optarg; *p; p++)
				if (*p == '=')
					break;
			if (*p)
				*p++ = EOS;
			dodefine(optarg, p);
			break;
		case 'I':
			addtoincludepath(optarg);
			break;
		case 'P':
			prefix_builtins = 1;
			break;
		case 'U':               /* undefine...       */
			macro_popdef(optarg);
			break;
		case 'g':
			mimic_gnu = 1;
			break;
		case 'd':
			set_trace_flags(optarg);
			break;
		case 's':
			synch_lines = 1;
			break;
		case 't':
			mark_traced(optarg, 1);
			break;
		case 'o':
			trace_file(optarg);
                        break;
		case '?':
			usage();
		}

        argc -= optind;
        argv += optind;

	initkwds();
	if (mimic_gnu)
		setup_builtin("format", FORMATTYPE);

	active = stdout;		/* default active output     */
	bbase[0] = bufbase;
        if (!argc) {
		sp = -1;		/* stack pointer initialized */
		fp = 0;			/* frame pointer initialized */
		set_input(infile+0, stdin, "stdin");
					/* default input (naturally) */
		macro();
	} else
		for (; argc--; ++argv) {
			p = *argv;
			if (p[0] == '-' && p[1] == EOS)
				set_input(infile, stdin, "stdin");
			else if (fopen_trypath(infile, p) == NULL)
				err(1, "%s", p);
			sp = -1;
			fp = 0;
			macro();
			release_input(infile);
		}

	if (wrapindex) {
		int i;

		ilevel = 0;		/* in case m4wrap includes.. */
		bufbase = bp = buf;	/* use the entire buffer   */
		if (mimic_gnu) {
			while (wrapindex != 0) {
				for (i = 0; i < wrapindex; i++)
					pbstr(m4wraps[i]);
				wrapindex =0;
				macro();
			}
		} else {
			for (i = 0; i < wrapindex; i++) {
				pbstr(m4wraps[i]);
				macro();
			}
		}
	}

	if (active != stdout)
		active = stdout;	/* reset output just in case */
	for (n = 1; n < maxout; n++)	/* default wrap-up: undivert */
		if (outfile[n] != NULL)
			getdiv(n);
					/* remove bitbucket if used  */
	if (outfile[0] != NULL) {
		(void) fclose(outfile[0]);
	}

	return exit_code;
}