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/*
     This file is part of GNUnet
     (C) 2012 Christian Grothoff (and other contributing authors)

     GNUnet is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published
     by the Free Software Foundation; either version 3, or (at your
     option) any later version.

     GNUnet is distributed in the hope that it will be useful, but
     WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     General Public License for more details.

     You should have received a copy of the GNU General Public License
     along with GNUnet; see the file COPYING.  If not, write to the
     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
*/
/**
 * @file regex/test_regex_proofs.c
 * @brief test for regex.c
 * @author Maximilian Szengel
 */
#include <regex.h>
#include <time.h>
#include "platform.h"
#include "gnunet_regex_lib.h"

int
main (int argc, char *argv[])
{
  GNUNET_log_setup ("test-regex",
#if VERBOSE
                    "DEBUG",
#else
                    "WARNING",
#endif
                    NULL);

  int error;
  int i;

  const char *regex[21] = {
    "ab(c|d)+c*(a(b|c)+d)+(bla)+",
    "(bla)*",
    "b(lab)*la",
    "(ab)*",
    "ab(c|d)+c*(a(b|c)+d)+(bla)(bla)*",
    "z(abc|def)?xyz",
    "1*0(0|1)*",
    "a+X*y+c|p|R|Z*K*y*R+w|Y*6+n+h*k*w+V*F|W*B*e*",
    "(cd|ab)*",
    "abcd:(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1):(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)",
    "abc(1|0)*def",
    "ab|ac",
    "(ab)(ab)*",
    "ab|cd|ef|gh",
    "a|b|c|d|e|f|g",
    "(ab)|(ac)",
    "a(b|c)",
    "a*a",
    "ab?(abcd)?",
    "(ab|cs|df|sdf)*",
    "a|aa*a"
  };
  char *canonical_regex;
  struct GNUNET_REGEX_Automaton *dfa;

  error = 0;

  for (i = 0; i < 21; i++)
  {
    dfa = GNUNET_REGEX_construct_dfa (regex[i], strlen (regex[i]));
    canonical_regex = GNUNET_strdup (GNUNET_REGEX_get_canonical_regex (dfa));
    GNUNET_REGEX_automaton_destroy (dfa);

    dfa =
        GNUNET_REGEX_construct_dfa (canonical_regex, strlen (canonical_regex));
    error +=
        (0 ==
         strcmp (canonical_regex,
                 GNUNET_REGEX_get_canonical_regex (dfa))) ? 0 : 1;
    GNUNET_free (canonical_regex);
    GNUNET_REGEX_automaton_destroy (dfa);
  }

  return error;
}