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Options: getopt long options

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NRZ Code 2025-05-01 22:16:26 -03:00
parent 6ea9c8c737
commit 0c146af6c6
1 changed files with 29 additions and 3 deletions
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32
wc.c
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@ -14,6 +14,18 @@ bool mode_lines = false;
bool mode_mllen = false;
bool mode_words = false;
static struct option long_options[] = {
{"bytes", no_argument, NULL, 'c'},
{"chars", no_argument, NULL, 'm'},
{"lines", no_argument, NULL, 'l'},
{"words", no_argument, NULL, 'w'},
{"max-line-length", no_argument, NULL, 'L'},
{"total", required_argument, NULL, 1000},
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'v'},
{0, 0, 0, 0}
};
enum { TOTAL };
enum { LINES, WORDS, CHARS, BYTES, MLLEN };
@ -145,11 +157,15 @@ void wc(char **list, int count) {
}
int main(int argc, char **argv) {
int opt;
int opt, option_index;
char *list[2];
char *mode_total;
// short_options = "c, m, l, L, w"
// long_options = "bytes,chars,lines,max-line-length,total,help,version,words"
while ((opt = getopt(argc, argv, "cmlLw")) != -1) {
while ((opt = getopt_long(argc, argv, "cmlLwhv", long_options, &option_index)) != -1) {
if (opt == 0) {
continue;
}
switch (opt) {
case 'c':
mode_bytes = true;
@ -166,12 +182,22 @@ int main(int argc, char **argv) {
case 'w':
mode_words = true;
break;
case 1000:
// auto, always, only, never
mode_total = optarg;
break;
case 'h':
printf("help\n");
exit(EXIT_SUCCESS);
case 'v':
printf("version\n");
exit(EXIT_SUCCESS);
default:
abort();
}
}
/* Default mode */
if ((mode_bytes || mode_chars || mode_lines || mode_mllen || mode_words) == 0) {
if ((mode_bytes || mode_chars || mode_lines || mode_mllen || mode_words) == false) {
mode_bytes = true;
mode_lines = true;
mode_words = true;