/* Test of searching a string for a character among a given set of characters.
   Copyright (C) 2007 Free Software Foundation, Inc.

   This program 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 2, or (at your option)
   any later version.

   This program 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 this program; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */

#include <config.h>

#include <string.h>

#include <locale.h>
#include <stdio.h>
#include <stdlib.h>

#define ASSERT(expr) \
  do									     \
    {									     \
      if (!(expr))							     \
        {								     \
          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
          abort ();							     \
        }								     \
    }									     \
  while (0)

int
main ()
{
  /* configure should already have checked that the locale is supported.  */
  if (setlocale (LC_ALL, "") == NULL)
    return 1;

  ASSERT (mbscspn ("Some text", "") == 9);

  {
    const char input[] = "A long sentence";
    ASSERT (mbscspn (input, "aeiou") == 3);
    ASSERT (mbscspn (input, "iI") == 15);
  }

  /* The following tests shows how mbscspn() is different from strcspn().  */

  {
    const char input[] = "B\303\266se B\303\274bchen"; /* "Böse Bübchen" */
    ASSERT (mbscspn (input, "\303\244\303\274") == 7); /* "äü" */
  }
#if 0 /* This would be for a GB18030 locale.  */
  {
    const char input[] = "B\201\060\213\062se B\250\271bchen"; /* "Böse Bübchen" */
    ASSERT (mbscspn (input, "\201\060\212\061\250\271") == 9); /* "äü" */
  }
#endif

  {
    const char input[] = "B\303\266se B\303\274bchen"; /* "Böse Bübchen" */
    ASSERT (mbscspn (input, "\303") == 14); /* invalid multibyte sequence */
  }

  return 0;
}