65 lines
1.1 KiB
C
65 lines
1.1 KiB
C
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#include "arg.h"
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#include "util.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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struct config conf;
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void argerr(char *r, char *arg) {
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fprintf(stderr, "lat: %s '%s'\n", r, arg);
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exit(EXIT_FAILURE);
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}
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void parselongarg(char *arg) {
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if (strcmp(arg, "--color") == 0) {
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conf.color = !conf.color;
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return;
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}
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if (strcmp(arg, "--lines") == 0) {
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conf.lines = !conf.lines;
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return;
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}
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argerr("unrecognized arg", arg);
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}
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void parseshortarg(char *arg) {
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size_t i = 1;
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while (arg[i] != '\0') {
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char c = arg[i];
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switch (c) {
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case 'c':
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conf.color = !conf.color;
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break;
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case 'n':
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conf.lines = !conf.lines;
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break;
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default:
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argerr("unrecognized flag", &c);
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break;
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}
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i++;
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}
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}
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int parseargs(int argc, char *argv[]) {
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int i;
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for (i = 1; i < argc; i++) { // offset for argv[0]
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char *arg = argv[i];
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if (arg[0] == '-') {
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if (arg[1] == '-') {
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parselongarg(arg);
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continue;
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}
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parseshortarg(arg);
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} else {
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return i;
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}
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}
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return i;
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}
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