text: /* Regular expression tests.
     Copyright (C) 2002-2016 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 <sys/types.h>
  #include <mcheck.h>
  #include <regex.h>
  #include <stdio.h>
  #include <stdlib.h>
  
  /* Tests supposed to not match.  */
  struct
  {
    const char *pattern;
    const char *string;
    int flags, nmatch;
  } tests[] = {
    { "^<\\([^~]*\\)\\([^~]\\)[^~]*~\\1\\(.\\).*|=.*\\3.*\\2",
      "<,.8~2,~so-|=-~.0,123456789<><", REG_NOSUB, 0 },
    /* In ERE, all carets must be treated as anchors.  */
    { "a^b", "a^b", REG_EXTENDED, 0 }
  };
  
  int
  main (void)
  {
    regex_t re;
    regmatch_t rm[4];
    size_t i;
    int n, ret = 0;
  
    mtrace ();
  
    for (i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i)
      {
        n = regcomp (&re, tests[i].pattern, tests[i].flags);
        if (n != 0)
  	{
  	  char buf[500];
  	  regerror (n, &re, buf, sizeof (buf));
  	  printf ("regcomp %zd failed: %s\n", i, buf);
  	  ret = 1;
  	  continue;
  	}
  
        if (! regexec (&re, tests[i].string, tests[i].nmatch,
  		     tests[i].nmatch ? rm : NULL, 0))
  	{
  	  printf ("regexec %zd incorrectly matched\n", i);
  	  ret = 1;
  	}
  
        regfree (&re);
      }
  
    return ret;
  }
  