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Add -V version flag

This commit is contained in:
Lassi Kortela 2023-02-15 19:38:14 +02:00
parent 4d6110812c
commit e9b63e2f71
1 changed files with 13 additions and 2 deletions
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15
src/unroff.c
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@ -25,6 +25,10 @@ const char *get_version_string(void) {
return buf; return buf;
} }
static void version(void) {
printf("unroff %s\n", get_version_string());
}
static void usage(void) { static void usage(void) {
fprintf(stderr, "Usage: %s [options] [file...]\n\n", get_progname()); fprintf(stderr, "Usage: %s [options] [file...]\n\n", get_progname());
fprintf(stderr, " -mname name of troff macro package (e.g. -ms)\n"); fprintf(stderr, " -mname name of troff macro package (e.g. -ms)\n");
@ -166,16 +170,20 @@ int main(int ac, char **av) {
eav = safe_malloc((ac+3+1) * sizeof(char *)); eav = safe_malloc((ac+3+1) * sizeof(char *));
eav[0] = av[0]; eav[0] = av[0];
opterr = 0; opterr = 0;
while ((c = getopt(ac, av, "h:gm:f:tC")) != EOF) { while ((c = getopt(ac, av, "h:gm:f:tCV")) != EOF) {
switch (c) { switch (c) {
case 'g': case 'g':
eav[eac++] = "-g"; break; eav[eac++] = "-g"; break;
case 'h': case 'h':
/* Unroff help flag */
if (strcmp(optarg, "elp") == 0) { if (strcmp(optarg, "elp") == 0) {
usage(); usage();
return 1; return 1;
} }
eav[eac++] = "-h"; eav[eac++] = optarg; break; /* Elk heap size flag */
eav[eac++] = "-h";
eav[eac++] = optarg;
break;
case 'm': case 'm':
macros = optarg; break; macros = optarg; break;
case 'f': case 'f':
@ -184,6 +192,9 @@ int main(int ac, char **av) {
tflag = 1; break; tflag = 1; break;
case 'C': case 'C':
compatible = 1; break; compatible = 1; break;
case 'V':
version();
return 0;
case '?': case '?':
usage(); usage();
return 1; return 1;