/* xregex.c - regex functions with error messages

   Carl D. Worth

   Copyright (C) 2001 University of Southern California

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
*/

#include "opkg.h"

#include "xregex.h"

static void print_regcomp_err(const regex_t *preg, int err);

int xregcomp(regex_t *preg, const char *regex, int cflags)
{
    int err;
    err = regcomp(preg, regex, cflags);
    if (err) {
	print_regcomp_err(preg, err);
    }

    return err;
}

static void print_regcomp_err(const regex_t *preg, int err)
{
    int size;
    char *error;
    
    fprintf(stderr, "%s: Error compiling regex:", __FUNCTION__);
    size = regerror(err, preg, 0, 0);
    error = malloc(size);
    if (error) {
	regerror(err, preg, error, size);
	fprintf(stderr, "%s\n", error);
    }
    free(error);
}