posix/bug-regex4.c

   1 /* Test for re_search_2.
   2    Copyright (C) 2001-2023 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 <locale.h>
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <regex.h>
  23
  24 int
  25 main (void)
  26 {
  27   struct re_pattern_buffer regex;
  28   const char *s;
  29   int match[3];
  30   int result = 0;
  31
  32   memset (&regex, '\0', sizeof (regex));
  33
  34   printf ("INFO: Checking C.\n");
  35   setlocale (LC_ALL, "C");
  36
  37   s = re_compile_pattern ("ab[cde]", 7, &regex);
  38   if (s != NULL)
  39     {
  40       puts ("re_compile_pattern returned non-NULL value");
  41       result = 1;
  42     }
  43   else
  44     {
  45       match[0] = re_search_2 (&regex, "xyabez", 6, "", 0, 1, 5, NULL, 6);
  46       match[1] = re_search_2 (&regex, NULL, 0, "abc", 3, 0, 3, NULL, 3);
  47       match[2] = re_search_2 (&regex, "xya", 3, "bd", 2, 2, 3, NULL, 5);
  48       if (match[0] != 2 || match[1] != 0 || match[2] != 2)
  49         {
  50           printf ("re_search_2 returned %d,%d,%d, expected 2,0,2\n",
  51                   match[0], match[1], match[2]);
  52           result = 1;
  53         }
  54       else
  55         puts (" -> OK");
  56     }
  57
  58   printf ("INFO: Checking C.UTF-8.\n");
  59   setlocale (LC_ALL, "C.UTF-8");
  60
  61   s = re_compile_pattern ("ab[cde]", 7, &regex);
  62   if (s != NULL)
  63     {
  64       puts ("re_compile_pattern returned non-NULL value");
  65       result = 1;
  66     }
  67   else
  68     {
  69       match[0] = re_search_2 (&regex, "xyabez", 6, "", 0, 1, 5, NULL, 6);
  70       match[1] = re_search_2 (&regex, NULL, 0, "abc", 3, 0, 3, NULL, 3);
  71       match[2] = re_search_2 (&regex, "xya", 3, "bd", 2, 2, 3, NULL, 5);
  72       if (match[0] != 2 || match[1] != 0 || match[2] != 2)
  73         {
  74           printf ("re_search_2 returned %d,%d,%d, expected 2,0,2\n",
  75                   match[0], match[1], match[2]);
  76           result = 1;
  77         }
  78       else
  79         puts (" -> OK");
  80     }
  81
  82   return result;
  83 }