1  /* Test RE_HAT_LISTS_NOT_NEWLINE and RE_DOT_NEWLINE.
       2     Copyright (C) 2007-2023 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 <regex.h>
      20  #include <stdio.h>
      21  #include <string.h>
      22  
      23  #include <support/test-driver.h>
      24  #include <support/check.h>
      25  
      26  struct tests
      27  {
      28    const char *regex;
      29    const char *string;
      30    reg_syntax_t syntax;
      31    int retval;
      32  };
      33  static const struct tests tests[] = {
      34  #define EGREP RE_SYNTAX_EGREP
      35  #define EGREP_NL (RE_SYNTAX_EGREP | RE_DOT_NEWLINE) & ~RE_HAT_LISTS_NOT_NEWLINE
      36    { "a.b", "a\nb", EGREP, 0 },
      37    { "a.b", "a\nb", EGREP_NL, 0 },
      38    { "a[^x]b", "a\nb", EGREP, 0 },
      39    { "a[^x]b", "a\nb", EGREP_NL, 0 },
      40    /* While \S and \W are internally handled as [^[:space:]] and [^[:alnum:]_],
      41       RE_HAT_LISTS_NOT_NEWLINE did not make any difference, so ensure
      42       it doesn't change.  */
      43    { "a\\Sb", "a\nb", EGREP, -1 },
      44    { "a\\Sb", "a\nb", EGREP_NL, -1 },
      45    { "a\\Wb", "a\nb", EGREP, 0 },
      46    { "a\\Wb", "a\nb", EGREP_NL, 0 }
      47  };
      48  static const size_t tests_size = sizeof (tests) / sizeof (tests[0]);
      49  
      50  static int
      51  do_test (void)
      52  {
      53    struct re_pattern_buffer r;
      54  
      55    for (size_t i = 0; i < tests_size; i++)
      56      {
      57        re_set_syntax (tests[i].syntax);
      58        memset (&r, 0, sizeof (r));
      59        const char *re = re_compile_pattern (tests[i].regex,
      60  					   strlen (tests[i].regex), &r);
      61        TEST_VERIFY (re == NULL);
      62        if (re != NULL)
      63          continue;
      64  
      65        size_t len = strlen (tests[i].string);
      66        int rv = re_search (&r, tests[i].string, len, 0, len, NULL);
      67        TEST_VERIFY (rv == tests[i].retval);
      68        if (test_verbose > 0)
      69          printf ("info: i=%zu rv=%d expected=%d\n", i, rv, tests[i].retval);
      70  
      71        regfree (&r);
      72      }
      73  
      74    return 0;
      75  }
      76  
      77  #include <support/test-driver.c>