Function str_MatchRegex

src/util/strutil.c:149–189

Utility function to check if the string matches the regex pattern.

// Utility function to check if the string matches
// the regex pattern.
bool str_MatchRegex
(
	const char* regex,   // regex pattern to match with
	const char* str      // string to match
) {
	const int len = strlen(str);
	regex_t *reg;
	OnigErrorInfo einfo;
	OnigRegion *region = onig_region_new();

	bool match = true;

	int rv = onig_new(&reg, (const UChar *)regex,
		(const UChar *)(regex + strlen(regex)), ONIG_OPTION_DEFAULT,
		ONIG_ENCODING_UTF8, ONIG_SYNTAX_JAVA, &einfo);
	if(unlikely(rv != ONIG_NORMAL)) {
		ASSERT(rv == ONIG_NORMAL);
		onig_free(reg);
		onig_region_free(region, 1);
		return false;
	}

	rv = onig_search(reg, (const UChar*)str, (UChar* )(str + len),
					(const UChar* )str, (const UChar* )(str + len),
					region, ONIG_OPTION_NONE);
	if (rv < ONIG_MISMATCH) {
		ASSERT(rv >= ONIG_MISMATCH);
		onig_free(reg);
		onig_region_free(region, 1);
		return false;
	}

	if (rv == ONIG_MISMATCH || region->beg[0] != 0 || region->end[0] != len) {
		match = false;
	} 

	onig_free(reg);
	onig_region_free(region, 1);

	return match;
}