posix/bug-regex27.c

   1 /* Test REG_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 struct tests
  24 {
  25   const char *regex;
  26   const char *string;
  27   int cflags;
  28   int retval;
  29 } tests[] = {
  30   { "a.b", "a\nb", REG_EXTENDED | REG_NEWLINE, REG_NOMATCH },
  31   { "a.b", "a\nb", REG_EXTENDED, 0 },
  32   { "a[^x]b", "a\nb", REG_EXTENDED | REG_NEWLINE, REG_NOMATCH },
  33   { "a[^x]b", "a\nb", REG_EXTENDED, 0 }
  34 };
  35
  36 int
  37 main (void)
  38 {
  39   regex_t r;
  40   size_t i;
  41   int ret = 0;
  42
  43   for (i = 0; i < sizeof (tests) / sizeof (tests[i]); ++i)
  44     {
  45       memset (&r, 0, sizeof (r));
  46       if (regcomp (&r, tests[i].regex, tests[i].cflags))
  47         {
  48           printf ("regcomp %zd failed\n", i);
  49           ret = 1;
  50           continue;
  51         }
  52       int rv = regexec (&r, tests[i].string, 0, NULL, 0);
  53       if (rv != tests[i].retval)
  54         {
  55           printf ("regexec %zd unexpected value %d != %d\n",
  56                   i, rv, tests[i].retval);
  57           ret = 1;
  58         }
  59       regfree (&r);
  60     }
  61   return ret;
  62 }