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#include "version.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define str(x) __str(x)
#define __str(x) #x
#define count_of(arr) (sizeof(arr)/sizeof(0[arr]))
int
parseint(const char *string, long *result)
{
char *end;
errno = 0;
*result = strtol(string, &end, 10);
return !(*end || errno);
}
const char *
strprefix(const char *str, const char *prefix)
{
while (*prefix) {
if (!(*str && *str == *prefix)) return 0;
prefix++; str++;
}
return str;
}
void
print_option(char short_opt, const char *long_opt, const char *description)
{
if (short_opt)
printf(" -%c, ", short_opt);
else
printf(" ");
printf("--%-13s %s\n", long_opt, description);
}
void
print_version()
{
printf("Built with Hoedown " HOEDOWN_VERSION ".\n");
}
int
parse_options(
int argc, char **argv,
int(*parse_short_option)(char opt, char *next, void *opaque),
int(*parse_long_option)(char *opt, char *next, void *opaque),
int(*parse_argument)(int argn, char *arg, int is_forced, void *opaque),
void *opaque)
{
int result;
int i = 1, regular_args = 0;
/* Parse options mixed with arguments */
while (i < argc) {
char *arg = argv[i];
if (arg[0] == '-' && arg[1]) {
char *next_arg = (i+1 < argc) ? argv[i+1] : NULL;
if (arg[1] == '-' && !arg[2]) {
/* '--' signals end of options */
i++;
break;
}
if (arg[1] == '-') {
/* Long option */
result = parse_long_option(arg + 2, next_arg, opaque);
if (!result) return 0;
i += result;
} else {
/* Sequence of short options */
size_t pos;
for (pos = 1; arg[pos]; pos++) {
char *next = (arg[pos+1]) ? arg + pos+1 : next_arg;
result = parse_short_option(arg[pos], next, opaque);
if (!result) return 0;
if (result == 2) {
if (next == next_arg) i++;
break;
}
}
i++;
}
} else {
/* Argument */
result = parse_argument(regular_args++, arg, 0, opaque);
if (!result) return 0;
i++;
}
}
/* Parse rest as forced arguments */
while (i < argc) {
result = parse_argument(regular_args++, argv[i], 1, opaque);
if (!result) return 0;
i++;
}
return 1;
}
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