posix/bug-regex13.c

   1 /* Regular expression tests.
   2    Copyright (C) 2002-2018 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>, 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, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #include <sys/types.h>
  21 #include <mcheck.h>
  22 #include <regex.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 static struct
  28 {
  29   int syntax;
  30   const char *pattern;
  31   const char *string;
  32   int start;
  33 } tests[] = {
  34   {RE_BACKSLASH_ESCAPE_IN_LISTS, "[0\\-9]", "1", -1}, /* It should not match.  */
  35   {RE_BACKSLASH_ESCAPE_IN_LISTS, "[0\\-9]", "-", 0}, /* It should match.  */
  36   {RE_SYNTAX_POSIX_BASIC, "s1\n.*\ns3", "s1\ns2\ns3", 0},
  37   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}c", "ac", 0},
  38   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}c", "abc", -1},
  39   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}c", "abbc", -1},
  40   /* Nested duplication.  */
  41   {RE_SYNTAX_POSIX_EXTENDED, "ab{1}{1}c", "ac", -1},
  42   {RE_SYNTAX_POSIX_EXTENDED, "ab{1}{1}c", "abc", 0},
  43   {RE_SYNTAX_POSIX_EXTENDED, "ab{1}{1}c", "abbc", -1},
  44   {RE_SYNTAX_POSIX_EXTENDED, "ab{2}{2}c", "ac", -1},
  45   {RE_SYNTAX_POSIX_EXTENDED, "ab{2}{2}c", "abbc", -1},
  46   {RE_SYNTAX_POSIX_EXTENDED, "ab{2}{2}c", "abbbbc", 0},
  47   {RE_SYNTAX_POSIX_EXTENDED, "ab{2}{2}c", "abbbbbc", -1},
  48   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}{1}c", "ac", 0},
  49   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}{1}c", "abc", -1},
  50   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}{1}c", "abbc", -1},
  51   {RE_SYNTAX_POSIX_EXTENDED, "ab{1}{0}c", "ac", 0},
  52   {RE_SYNTAX_POSIX_EXTENDED, "ab{1}{0}c", "abc", -1},
  53   {RE_SYNTAX_POSIX_EXTENDED, "ab{1}{0}c", "abbc", -1},
  54   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}*c", "ac", 0},
  55   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}*c", "abc", -1},
  56   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}*c", "abbc", -1},
  57   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}?c", "ac", 0},
  58   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}?c", "abc", -1},
  59   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}?c", "abbc", -1},
  60   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}+c", "ac", 0},
  61   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}+c", "abc", -1},
  62   {RE_SYNTAX_POSIX_EXTENDED, "ab{0}+c", "abbc", -1},
  63 };
  64
  65 int
  66 main (void)
  67 {
  68   struct re_pattern_buffer regbuf;
  69   const char *err;
  70   size_t i;
  71   int ret = 0;
  72
  73   mtrace ();
  74
  75   for (i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i)
  76     {
  77       int start;
  78       re_set_syntax (tests[i].syntax);
  79       memset (&regbuf, '\0', sizeof (regbuf));
  80       err = re_compile_pattern (tests[i].pattern, strlen (tests[i].pattern),
  81                                 &regbuf);
  82       if (err != NULL)
  83         {
  84           printf ("re_compile_pattern failed: %s\n", err);
  85           ret = 1;
  86           continue;
  87         }
  88
  89       start = re_search (&regbuf, tests[i].string, strlen (tests[i].string),
  90                          0, strlen (tests[i].string), NULL);
  91       if (start != tests[i].start)
  92         {
  93           printf ("re_search failed %d\n", start);
  94           ret = 1;
  95           regfree (&regbuf);
  96           continue;
  97         }
  98       regfree (&regbuf);
  99     }
 100
 101   return ret;
 102 }