/* simple regex example */

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <regex.h>

int main(int argc, char *argv[])
{
	regex_t preg;
	char *regex, *match;
	int ret;

	/* get input from user */
	if (argc != 3) {
		printf("Usage: %s <regex> <string to match>\n", argv[0]);
		return EXIT_FAILURE;
	}
	regex = argv[1];
	match = argv[2];

	/* compile the regex */
	ret = regcomp(&preg, regex, REG_EXTENDED);
	if (ret) {
		/* handle error */
		char err[256];
		if (regerror(ret, &preg, err, sizeof(err)))
			fprintf(stderr, "regcomp failed: %s\n", err);
		else
			fprintf(stderr, "regcomp failed\n");
		return EXIT_FAILURE;
	}

	/* match the regex */
	if (regexec(&preg, match, 0, NULL, 0) == 0)
		printf("match !\n");
	else
		printf("no match !\n");

	/* clean up */
	regfree(&preg);

	return EXIT_SUCCESS;
}