posix/bug-regex28.c

   1 /* Test RE_HAT_LISTS_NOT_NEWLINE and RE_DOT_NEWLINE.
   2    Copyright (C) 2007-2021 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Jakub Jelinek <jakub@redhat.com>, 2007.
   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    <https://www.gnu.org/licenses/>.  */
  19
  20 #include <regex.h>
  21 #include <stdio.h>
  22 #include <string.h>
  23
  24 #include <support/test-driver.h>
  25 #include <support/check.h>
  26
  27 struct tests
  28 {
  29   const char *regex;
  30   const char *string;
  31   reg_syntax_t syntax;
  32   int retval;
  33 };
  34 static const struct tests tests[] = {
  35 #define EGREP RE_SYNTAX_EGREP
  36 #define EGREP_NL (RE_SYNTAX_EGREP | RE_DOT_NEWLINE) & ~RE_HAT_LISTS_NOT_NEWLINE
  37   { "a.b", "a\nb", EGREP, 0 },
  38   { "a.b", "a\nb", EGREP_NL, 0 },
  39   { "a[^x]b", "a\nb", EGREP, 0 },
  40   { "a[^x]b", "a\nb", EGREP_NL, 0 },
  41   /* While \S and \W are internally handled as [^[:space:]] and [^[:alnum:]_],
  42      RE_HAT_LISTS_NOT_NEWLINE did not make any difference, so ensure
  43      it doesn't change.  */
  44   { "a\\Sb", "a\nb", EGREP, -1 },
  45   { "a\\Sb", "a\nb", EGREP_NL, -1 },
  46   { "a\\Wb", "a\nb", EGREP, 0 },
  47   { "a\\Wb", "a\nb", EGREP_NL, 0 }
  48 };
  49 static const size_t tests_size = sizeof (tests) / sizeof (tests[0]);
  50
  51 static int
  52 do_test (void)
  53 {
  54   struct re_pattern_buffer r;
  55
  56   for (size_t i = 0; i < tests_size; i++)
  57     {
  58       re_set_syntax (tests[i].syntax);
  59       memset (&r, 0, sizeof (r));
  60       const char *re = re_compile_pattern (tests[i].regex,
  61                                            strlen (tests[i].regex), &r);
  62       TEST_VERIFY (re == NULL);
  63       if (re != NULL)
  64         continue;
  65
  66       size_t len = strlen (tests[i].string);
  67       int rv = re_search (&r, tests[i].string, len, 0, len, NULL);
  68       TEST_VERIFY (rv == tests[i].retval);
  69       if (test_verbose > 0)
  70         printf ("info: i=%zu rv=%d expected=%d\n", i, rv, tests[i].retval);
  71
  72       regfree (&r);
  73     }
  74
  75   return 0;
  76 }
  77
  78 #include <support/test-driver.c>