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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@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
main(void)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