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"