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thodg/libiconv/srclib/cjk.h

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  • Author : Bruno Haible
    Date : 2005-03-14 11:29:54
    Hash : daffeedd
    Message : Fast test for a CJK encoding. Taken from GNU clisp.

  • srclib/cjk.h
  • /* Test for CJK encoding.
       Copyright (C) 2001-2002 Free Software Foundation, Inc.
       Written by Bruno Haible <bruno@clisp.org>, 2002.
    
       This program is free software; you can redistribute it and/or modify it
       under the terms of the GNU Library 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
       Library General Public License for more details.
    
       You should have received a copy of the GNU Library General Public
       License along with this program; if not, write to the Free Software
       Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
       USA.  */
    
    #include "streq.h"
    
    /* Prototypes for local functions.  Needed to ensure compiler checking of
       function argument counts despite of K&R C function definition syntax.  */
    static int is_cjk_encoding (const char *encoding);
    
    static int
    is_cjk_encoding (const char *encoding)
    {
      if (0
          /* Legacy Japanese encodings */
          || STREQ (encoding, "EUC-JP", 'E', 'U', 'C', '-', 'J', 'P', 0, 0, 0)
          /* Legacy Chinese encodings */
          || STREQ (encoding, "GB2312", 'G', 'B', '2', '3', '1', '2', 0, 0, 0)
          || STREQ (encoding, "GBK", 'G', 'B', 'K', 0, 0, 0, 0, 0, 0)
          || STREQ (encoding, "EUC-TW", 'E', 'U', 'C', '-', 'T', 'W', 0, 0, 0)
          || STREQ (encoding, "BIG5", 'B', 'I', 'G', '5', 0, 0, 0, 0, 0)
          /* Legacy Korean encodings */
          || STREQ (encoding, "EUC-KR", 'E', 'U', 'C', '-', 'K', 'R', 0, 0, 0)
          || STREQ (encoding, "CP949", 'C', 'P', '9', '4', '9', 0, 0, 0, 0)
          || STREQ (encoding, "JOHAB", 'J', 'O', 'H', 'A', 'B', 0, 0, 0, 0))
        return 1;
      return 0;
    }