/usr/share/doc/libonig-dev/examples/simple.c is in libonig-dev 6.1.3-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | /*
* simple.c
*/
#include <stdio.h>
#include <string.h>
#include "oniguruma.h"
extern int main(int argc, char* argv[])
{
int r;
unsigned char *start, *range, *end;
regex_t* reg;
OnigErrorInfo einfo;
OnigRegion *region;
static UChar* pattern = (UChar* )"a(.*)b|[e-f]+";
static UChar* str = (UChar* )"zzzzaffffffffb";
OnigEncoding use_encs[] = { ONIG_ENCODING_ASCII };
onig_initialize(use_encs, sizeof(use_encs)/sizeof(use_encs[0]));
r = onig_new(®, pattern, pattern + strlen((char* )pattern),
ONIG_OPTION_DEFAULT, ONIG_ENCODING_ASCII, ONIG_SYNTAX_DEFAULT, &einfo);
if (r != ONIG_NORMAL) {
char s[ONIG_MAX_ERROR_MESSAGE_LEN];
onig_error_code_to_str(s, r, &einfo);
fprintf(stderr, "ERROR: %s\n", s);
return -1;
}
region = onig_region_new();
end = str + strlen((char* )str);
start = str;
range = end;
r = onig_search(reg, str, end, start, range, region, ONIG_OPTION_NONE);
if (r >= 0) {
int i;
fprintf(stderr, "match at %d\n", r);
for (i = 0; i < region->num_regs; i++) {
fprintf(stderr, "%d: (%d-%d)\n", i, region->beg[i], region->end[i]);
}
}
else if (r == ONIG_MISMATCH) {
fprintf(stderr, "search fail\n");
}
else { /* error */
char s[ONIG_MAX_ERROR_MESSAGE_LEN];
onig_error_code_to_str(s, r);
fprintf(stderr, "ERROR: %s\n", s);
return -1;
}
onig_region_free(region, 1 /* 1:free self, 0:free contents only */);
onig_free(reg);
onig_end();
return 0;
}
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