posix/bug-regex17.c

   1 /* German regular expression tests.
   2    Copyright (C) 2002-2023 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 <sys/types.h>
  20 #include <mcheck.h>
  21 #include <regex.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <locale.h>
  25
  26 /* Tests supposed to match.  */
  27 struct
  28 {
  29   const char *pattern;
  30   const char *string;
  31   int flags, nmatch;
  32   regmatch_t rm[5];
  33 } tests[] = {
  34   /* U+00C4     \xc3\x84        LATIN CAPITAL LETTER A WITH DIAERESIS
  35      U+00D6     \xc3\x96        LATIN CAPITAL LETTER O WITH DIAERESIS
  36      U+00E4     \xc3\xa4        LATIN SMALL LETTER A WITH DIAERESIS
  37      U+00F6     \xc3\xb6        LATIN SMALL LETTER O WITH DIAERESIS  */
  38   { "\xc3\x84\xc3\x96*\xc3\xb6$", "aB\xc3\xa4\xc3\xb6\xc3\xb6\xc3\x96", REG_ICASE, 2,
  39     { { 2, 10 }, { -1, -1 } } },
  40   { "[\xc3\x84x]\xc3\x96*\xc3\xb6$", "aB\xc3\x84\xc3\xb6\xc3\xb6\xc3\x96", REG_ICASE, 2,
  41     { { 2, 10 }, { -1, -1 } } },
  42   { "[\xc3\x84x]\xc3\x96*\xc3\xb6$", "aB\xc3\xa4\xc3\xb6\xc3\xb6\xc3\x96", REG_ICASE, 2,
  43     { { 2, 10 }, { -1, -1 } } },
  44   { "[^x]\xc3\x96*\xc3\xb6$", "aB\xc3\xa4\xc3\xb6\xc3\xb6\xc3\x96", REG_ICASE, 2,
  45     { { 2, 10 }, { -1, -1 } } },
  46
  47   /* Tests for bug 9697:
  48      U+00DF     \xc3\x9f        LATIN SMALL LETTER SHARP S
  49      U+02DA     \xcb\x9a        RING ABOVE
  50      U+02E2     \xcb\xa2        MODIFIER LETTER SMALL S  */
  51   { "[a-z]|[^a-z]", "\xcb\xa2", REG_EXTENDED, 2,
  52     { { 0, 2 }, { -1, -1 } } },
  53   { "[a-z]", "\xc3\x9f", REG_EXTENDED, 2,
  54     { { 0, 2 }, { -1, -1 } } },
  55   { "[^a-z]", "\xcb\x9a", REG_EXTENDED, 2,
  56     { { 0, 2 }, { -1, -1 } } },
  57 };
  58
  59
  60 static int
  61 do_test (void)
  62 {
  63   regex_t re;
  64   regmatch_t rm[5];
  65   size_t i;
  66   int n, ret = 0;
  67
  68   setlocale (LC_ALL, "de_DE.UTF-8");
  69   for (i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i)
  70     {
  71       n = regcomp (&re, tests[i].pattern, tests[i].flags);
  72       if (n != 0)
  73         {
  74           char buf[500];
  75           regerror (n, &re, buf, sizeof (buf));
  76           printf ("regcomp %zd failed: %s\n", i, buf);
  77           ret = 1;
  78           continue;
  79         }
  80
  81       if (regexec (&re, tests[i].string, tests[i].nmatch, rm, 0))
  82         {
  83           printf ("regexec %zd failed\n", i);
  84           ret = 1;
  85           regfree (&re);
  86           continue;
  87         }
  88
  89       for (n = 0; n < tests[i].nmatch; ++n)
  90         if (rm[n].rm_so != tests[i].rm[n].rm_so
  91               || rm[n].rm_eo != tests[i].rm[n].rm_eo)
  92           {
  93             if (tests[i].rm[n].rm_so == -1 && tests[i].rm[n].rm_eo == -1)
  94               break;
  95             printf ("regexec match failure rm[%d] %d..%d\n",
  96                     n, rm[n].rm_so, rm[n].rm_eo);
  97             ret = 1;
  98             break;
  99           }
 100
 101       regfree (&re);
 102     }
 103
 104   return ret;
 105 }
 106
 107 #define TEST_FUNCTION do_test ()
 108 #include "../test-skeleton.c"