posix/runptests.c

   1 /* POSIX regex testsuite from IEEE 2003.2.
   2    Copyright (C) 1998-2023 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 <regex.h>
  21 #include <stdio.h>
  22 #include <string.h>
  23
  24 /* Data structure to describe the tests.  */
  25 struct test
  26 {
  27   int start;
  28   int end;
  29   const char *reg;
  30   const char *str;
  31   int options;
  32 } tests[] =
  33 {
  34 #include "ptestcases.h"
  35 };
  36
  37
  38 int
  39 main (int argc, char *argv[])
  40 {
  41   size_t cnt;
  42   int errors = 0;
  43
  44   for (cnt = 0; cnt < sizeof (tests) / sizeof (tests[0]); ++cnt)
  45     if (tests[cnt].str == NULL)
  46       {
  47         printf ("\n%s\n%.*s\n", tests[cnt].reg,
  48                 (int) strlen (tests[cnt].reg),
  49                 "-----------------------------------------------------");
  50       }
  51     else if (tests[cnt].reg == NULL)
  52         printf ("!!! %s\n", tests[cnt].str);
  53     else
  54       {
  55         regex_t re;
  56         regmatch_t match[20];
  57         int err;
  58
  59         printf ("regexp: \"%s\", string: \"%s\" -> ", tests[cnt].reg,
  60                 tests[cnt].str);
  61
  62         /* Compile the expression.  */
  63         err = regcomp (&re, tests[cnt].reg, tests[cnt].options);
  64         if (err != 0)
  65           {
  66             if (tests[cnt].start == -2)
  67               puts ("compiling failed, OK");
  68             else
  69               {
  70                 char buf[100];
  71                 regerror (err, &re, buf, sizeof (buf));
  72                 printf ("FAIL: %s\n", buf);
  73                 ++errors;
  74               }
  75
  76             continue;
  77           }
  78         else if (tests[cnt].start == -2)
  79           {
  80             puts ("compiling succeeds, FAIL");
  81             errors++;
  82             continue;
  83           }
  84
  85         /* Run the actual test.  */
  86         err = regexec (&re, tests[cnt].str, 20, match, 0);
  87
  88         if (err != 0)
  89           {
  90             if (tests[cnt].start == -1)
  91               puts ("no match, OK");
  92             else
  93               {
  94                 puts ("no match, FAIL");
  95                 ++errors;
  96               }
  97           }
  98         else
  99           {
 100             if (match[0].rm_so == 0 && tests[cnt].start == 0
 101                 && match[0].rm_eo == 0 && tests[cnt].end == 0)
 102               puts ("match, OK");
 103             else if (match[0].rm_so + 1 == tests[cnt].start
 104                      && match[0].rm_eo == tests[cnt].end)
 105               puts ("match, OK");
 106             else
 107               {
 108                 printf ("wrong match (%d to %d): FAIL\n",
 109                         match[0].rm_so, match[0].rm_eo);
 110                 ++errors;
 111               }
 112           }
 113
 114         /* Free all resources.  */
 115         regfree (&re);
 116       }
 117
 118   printf ("\n%zu tests, %d errors\n", cnt, errors);
 119
 120   return errors != 0;
 121 }