1  /* Test REG_NEWLINE.
       2     Copyright (C) 2007-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <regex.h>
      20  #include <stdio.h>
      21  #include <string.h>
      22  
      23  struct tests
      24  {
      25    const char *regex;
      26    const char *string;
      27    int cflags;
      28    int retval;
      29  } tests[] = {
      30    { "a.b", "a\nb", REG_EXTENDED | REG_NEWLINE, REG_NOMATCH },
      31    { "a.b", "a\nb", REG_EXTENDED, 0 },
      32    { "a[^x]b", "a\nb", REG_EXTENDED | REG_NEWLINE, REG_NOMATCH },
      33    { "a[^x]b", "a\nb", REG_EXTENDED, 0 }
      34  };
      35  
      36  int
      37  main (void)
      38  {
      39    regex_t r;
      40    size_t i;
      41    int ret = 0;
      42  
      43    for (i = 0; i < sizeof (tests) / sizeof (tests[i]); ++i)
      44      {
      45        memset (&r, 0, sizeof (r));
      46        if (regcomp (&r, tests[i].regex, tests[i].cflags))
      47  	{
      48  	  printf ("regcomp %zd failed\n", i);
      49  	  ret = 1;
      50  	  continue;
      51  	}
      52        int rv = regexec (&r, tests[i].string, 0, NULL, 0);
      53        if (rv != tests[i].retval)
      54  	{
      55  	  printf ("regexec %zd unexpected value %d != %d\n",
      56  		  i, rv, tests[i].retval);
      57  	  ret = 1;
      58  	}
      59        regfree (&r);
      60      }
      61    return ret;
      62  }