/* Test of conversion of wide character to multibyte character.

   Copyright (C) 2008-2017 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 3 of the License, 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, see <http://www.gnu.org/licenses/>.  */

#include <config.h>

#include <wchar.h>

#include <locale.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include "macros.h"

#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__

static int

test_one_locale (const char *name, int codepage)

{

  char buf[64];

  size_t ret;

# if 1

  /* Portable code to set the locale.  */

  {

    char name_with_codepage[1024];

    sprintf (name_with_codepage, "%s.%d", name, codepage);

    /* Set the locale.  */

    if (setlocale (LC_ALL, name_with_codepage) == NULL)

      return 77;

  }

# else

  /* Hacky way to set a locale.codepage combination that setlocale() refuses

     to set.  */

  {

    /* Codepage of the current locale, set with setlocale().

       Not necessarily the same as GetACP().  */

    extern __declspec(dllimport) unsigned int __lc_codepage;

    /* Set the locale.  */

    if (setlocale (LC_ALL, name) == NULL)

      return 77;

    /* Clobber the codepage and MB_CUR_MAX, both set by setlocale().  */

    __lc_codepage = codepage;

    switch (codepage)

      {

      case 1252:

      case 1256:

        MB_CUR_MAX = 1;

        break;

      case 932:

      case 950:

      case 936:

        MB_CUR_MAX = 2;

        break;

      case 54936:

      case 65001:

        MB_CUR_MAX = 4;

        break;

      }

    /* Test whether the codepage is really available.  */

    {

      mbstate_t state;

      wchar_t wc;

      memset (&state, '\0', sizeof (mbstate_t));

      if (mbrtowc (&wc, " ", 1, &state) == (size_t)(-1))

        return 77;

    }

  }

# endif

  /* Test NUL character.  */

  {

    buf[0] = 'x';

    ret = wcrtomb (buf, 0, NULL);

    ASSERT (ret == 1);

    ASSERT (buf[0] == '\0');

  }

  /* Test single bytes.  */

  {

    int c;

    for (c = 0; c < 0x100; c++)

      switch (c)

        {

        case '\t': case '\v': case '\f':

        case ' ': case '!': case '"': case '#': case '%':

        case '&': case '\'': case '(': case ')': case '*':

        case '+': case ',': case '-': case '.': case '/':

        case '0': case '1': case '2': case '3': case '4':

        case '5': case '6': case '7': case '8': case '9':

        case ':': case ';': case '<': case '=': case '>':

        case '?':

        case 'A': case 'B': case 'C': case 'D': case 'E':

        case 'F': case 'G': case 'H': case 'I': case 'J':

        case 'K': case 'L': case 'M': case 'N': case 'O':

        case 'P': case 'Q': case 'R': case 'S': case 'T':

        case 'U': case 'V': case 'W': case 'X': case 'Y':

        case 'Z':

        case '[': case '\\': case ']': case '^': case '_':

        case 'a': case 'b': case 'c': case 'd': case 'e':

        case 'f': case 'g': case 'h': case 'i': case 'j':

        case 'k': case 'l': case 'm': case 'n': case 'o':

        case 'p': case 'q': case 'r': case 's': case 't':

        case 'u': case 'v': case 'w': case 'x': case 'y':

        case 'z': case '{': case '|': case '}': case '~':

          /* c is in the ISO C "basic character set".  */

          ret = wcrtomb (buf, btowc (c), NULL);

          ASSERT (ret == 1);

          ASSERT (buf[0] == (char) c);

          break;

        }

  }

  /* Test special calling convention, passing a NULL pointer.  */

  {

    ret = wcrtomb (NULL, '\0', NULL);

    ASSERT (ret == 1);

    ret = wcrtomb (NULL, btowc ('x'), NULL);

    ASSERT (ret == 1);

  }

  switch (codepage)

    {

    case 1252:

      /* Locale encoding is CP1252, an extension of ISO-8859-1.  */

      {

        /* Convert "B\374\337er": "Büßer" */

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x00FC, NULL);

        ASSERT (ret == 1);

        ASSERT (memcmp (buf, "\374", 1) == 0);

        ASSERT (buf[1] == 'x');

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x00DF, NULL);

        ASSERT (ret == 1);

        ASSERT (memcmp (buf, "\337", 1) == 0);

        ASSERT (buf[1] == 'x');

      }

      return 0;

    case 1256:

      /* Locale encoding is CP1256, not the same as ISO-8859-6.  */

      {

        /* Convert "x\302\341\346y": "xآلوy" */

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x0622, NULL);

        ASSERT (ret == 1);

        ASSERT (memcmp (buf, "\302", 1) == 0);

        ASSERT (buf[1] == 'x');

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x0644, NULL);

        ASSERT (ret == 1);

        ASSERT (memcmp (buf, "\341", 1) == 0);

        ASSERT (buf[1] == 'x');

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x0648, NULL);

        ASSERT (ret == 1);

        ASSERT (memcmp (buf, "\346", 1) == 0);

        ASSERT (buf[1] == 'x');

      }

      return 0;

    case 932:

      /* Locale encoding is CP932, similar to Shift_JIS.  */

      {

        /* Convert "<\223\372\226\173\214\352>": "<日本語>" */

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x65E5, NULL);

        ASSERT (ret == 2);

        ASSERT (memcmp (buf, "\223\372", 2) == 0);

        ASSERT (buf[2] == 'x');

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x672C, NULL);

        ASSERT (ret == 2);

        ASSERT (memcmp (buf, "\226\173", 2) == 0);

        ASSERT (buf[2] == 'x');

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x8A9E, NULL);

        ASSERT (ret == 2);

        ASSERT (memcmp (buf, "\214\352", 2) == 0);

        ASSERT (buf[2] == 'x');

      }

      return 0;

    case 950:

      /* Locale encoding is CP950, similar to Big5.  */

      {

        /* Convert "<\244\351\245\273\273\171>": "<日本語>" */

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x65E5, NULL);

        ASSERT (ret == 2);

        ASSERT (memcmp (buf, "\244\351", 2) == 0);

        ASSERT (buf[2] == 'x');

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x672C, NULL);

        ASSERT (ret == 2);

        ASSERT (memcmp (buf, "\245\273", 2) == 0);

        ASSERT (buf[2] == 'x');

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x8A9E, NULL);

        ASSERT (ret == 2);

        ASSERT (memcmp (buf, "\273\171", 2) == 0);

        ASSERT (buf[2] == 'x');

      }

      return 0;

    case 936:

      /* Locale encoding is CP936 = GBK, an extension of GB2312.  */

      {

        /* Convert "<\310\325\261\276\325\132>": "<日本語>" */

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x65E5, NULL);

        ASSERT (ret == 2);

        ASSERT (memcmp (buf, "\310\325", 2) == 0);

        ASSERT (buf[2] == 'x');

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x672C, NULL);

        ASSERT (ret == 2);

        ASSERT (memcmp (buf, "\261\276", 2) == 0);

        ASSERT (buf[2] == 'x');

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x8A9E, NULL);

        ASSERT (ret == 2);

        ASSERT (memcmp (buf, "\325\132", 2) == 0);

        ASSERT (buf[2] == 'x');

      }

      return 0;

    case 54936:

      /* Locale encoding is CP54936 = GB18030.  */

      {

        /* Convert "B\250\271\201\060\211\070er": "Büßer" */

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x00FC, NULL);

        ASSERT (ret == 2);

        ASSERT (memcmp (buf, "\250\271", 2) == 0);

        ASSERT (buf[2] == 'x');

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x00DF, NULL);

        ASSERT (ret == 4);

        ASSERT (memcmp (buf, "\201\060\211\070", 4) == 0);

        ASSERT (buf[4] == 'x');

      }

      return 0;

    case 65001:

      /* Locale encoding is CP65001 = UTF-8.  */

      {

        /* Convert "B\303\274\303\237er": "Büßer" */

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x00FC, NULL);

        ASSERT (ret == 2);

        ASSERT (memcmp (buf, "\303\274", 2) == 0);

        ASSERT (buf[2] == 'x');

        memset (buf, 'x', 8);

        ret = wcrtomb (buf, 0x00DF, NULL);

        ASSERT (ret == 2);

        ASSERT (memcmp (buf, "\303\237", 2) == 0);

        ASSERT (buf[2] == 'x');

      }

      return 0;

    default:

      return 1;

    }

}

int

main (int argc, char *argv[])

{

  int codepage = atoi (argv[argc - 1]);

  int result;

  int i;

  result = 77;

  for (i = 1; i < argc - 1; i++)

    {

      int ret = test_one_locale (argv[i], codepage);

      if (ret != 77)

        result = ret;

    }

  if (result == 77)

    {

      fprintf (stderr, "Skipping test: found no locale with codepage %d\n",

               codepage);

    }

  return result;

}

#else

int

main (int argc, char *argv[])

{

  fputs ("Skipping test: not a native Windows system\n", stderr);

  return 77;

}

#endif