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);
}
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);
}
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;
}