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      1 /* Test for regs allocation in re_search and re_match.
      2    Copyright (C) 2002 Free Software Foundation, Inc.
      3    This file is part of the GNU C Library.
      4    Contributed by Stepan Kasal <kasal (at) math.cas.cz>, 2002.
      5 
      6    The GNU C Library is free software; you can redistribute it and/or
      7    modify it under the terms of the GNU Lesser General Public
      8    License as published by the Free Software Foundation; either
      9    version 2.1 of the License, or (at your option) any later version.
     10 
     11    The GNU C Library is distributed in the hope that it will be useful,
     12    but WITHOUT ANY WARRANTY; without even the implied warranty of
     13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14    Lesser General Public License for more details.
     15 
     16    You should have received a copy of the GNU Lesser General Public
     17    License along with the GNU C Library; if not, write to the Free
     18    Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
     19    02110-1301 USA.  */
     20 
     21 #ifdef HAVE_CONFIG_H
     22 #include "config.h"
     23 #endif
     24 
     25 #include <locale.h>
     26 #include <stdio.h>
     27 #include <stdlib.h>
     28 #include <string.h>
     29 #include <sys/types.h>
     30 #include <regex.h>
     31 
     32 
     33 int
     34 main (void)
     35 {
     36   struct re_pattern_buffer regex;
     37   struct re_registers regs;
     38   const char *s;
     39   int match, n;
     40   int result = 0;
     41 
     42   memset (&regex, '\0', sizeof (regex));
     43   regs.start = regs.end = NULL;
     44   regs.num_regs = 0;
     45   s = re_compile_pattern ("a", 1, &regex);
     46   if (s != NULL)
     47     {
     48       puts ("failed to compile pattern \"a\"");
     49       result = 1;
     50     }
     51   else
     52     {
     53       match = re_search (&regex, "baobab", 6, 0, 6, &regs);
     54       n = 1;
     55       if (match != 1)
     56 	{
     57 	  printf ("re_search returned %d, expected 1\n", match);
     58 	  result = 1;
     59 	}
     60       else if (regs.num_regs <= n || regs.start[n] != -1 || regs.end[n] != -1)
     61 	{
     62 	  puts ("re_search failed to fill the -1 sentinel");
     63 	  result = 1;
     64 	}
     65     }
     66 
     67   free (regex.buffer);
     68   memset (&regex, '\0', sizeof (regex));
     69 
     70   s = re_compile_pattern ("\\(\\(\\(a\\)\\)\\)", 13, &regex);
     71   if (s != NULL)
     72     {
     73       puts ("failed to compile pattern /\\(\\(\\(a\\)\\)\\)/");
     74       result = 1;
     75     }
     76   else
     77     {
     78       match = re_match (&regex, "apl", 3, 0, &regs);
     79       n = 4;
     80       if (match != 1)
     81 	{
     82 	  printf ("re_match returned %d, expected 1\n", match);
     83 	  result = 1;
     84 	}
     85       else if (regs.num_regs <= n || regs.start[n] != -1 || regs.end[n] != -1)
     86 	{
     87 	  puts ("re_match failed to fill the -1 sentinel");
     88 	  result = 1;
     89 	}
     90     }
     91 
     92   if (result == 0)
     93     puts (" -> OK");
     94 
     95   return result;
     96 }
     97