/* Test for regexec.

   Copyright (C) 2002-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <locale.h>

#include <stdio.h>

#include <string.h>

#include <sys/types.h>

#include <regex.h>

int

main (int argc, char *argv[])

{

  regex_t re;

  regmatch_t mat[10];

  int i, j, ret = 0;

  const char *locales[] = { "C", "de_DE.UTF-8" };

  const char *string = "http://www.regex.com/pattern/matching.html#intro";

  regmatch_t expect[10] = {

    { 0, 48 }, { 0, 5 }, { 0, 4 }, { 5, 20 }, { 7, 20 }, { 20, 42 },

    { -1, -1 }, { -1, -1 }, { 42, 48 }, { 43, 48 } };

  for (i = 0; i < sizeof (locales) / sizeof (locales[0]); ++i)

    {

      if (setlocale (LC_ALL, locales[i]) == NULL)

	{

	  puts ("cannot set locale");

	  ret = 1;

	}

      else if (regcomp (&re,

			"^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?",

			REG_EXTENDED) != REG_NOERROR)

	{

	  puts ("cannot compile the regular expression");

	  ret = 1;

	}

      else if (regexec (&re, string, 10, mat, 0) == REG_NOMATCH)

	{

	  puts ("no match");

	  ret = 1;

	}

      else

	{

	  if (! memcmp (mat, expect, sizeof (mat)))

	    printf ("matching ok for %s locale\n", locales[i]);

	  else

	    {

	      printf ("matching failed for %s locale:\n", locales[i]);

	      ret = 1;

	      for (j = 0; j < 9; ++j)

		if (mat[j].rm_so != -1)

		  printf ("%d: %.*s\n", j, mat[j].rm_eo - mat[j].rm_so,

			  string + mat[j].rm_so);

	    }

	}

    }

  return ret;

}