intl/uconv/ucvcn/gbku.h

   1 /* ***** BEGIN LICENSE BLOCK *****
   2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   3  *
   4  * The contents of this file are subject to the Mozilla Public License Version
   5  * 1.1 (the "License"); you may not use this file except in compliance with
   6  * the License. You may obtain a copy of the License at
   7  * http://www.mozilla.org/MPL/
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   9  * Software distributed under the License is distributed on an "AS IS" basis,
  10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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  13  *
  14  * The Original Code is mozilla.org code.
  15  *
  16  * The Initial Developer of the Original Code is
  17  * Intel Corporation.
  18  * Portions created by the Initial Developer are Copyright (C) 1999
  19  * the Initial Developer. All Rights Reserved.
  20  *
  21  * Contributor(s):
  22  *   Yueheng Xu <yueheng.xu@intel.com>
  23  *   Hoa Nguyen <hoa.nguyen@intel.com>
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either of the GNU General Public License Version 2 or later (the "GPL"),
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  38 // =======================================================================
  39 // Original Author: Yueheng Xu
  40 // email: yueheng.xu@intel.com
  41 // phone: (503)264-2248
  42 // Intel Corporation, Oregon, USA
  43 // Last Update: September 7, 1999
  44 // Revision History:
  45 // 09/07/1999 - initial version.
  46 // 09/28/1999 - changed leftbyte and rightbyte from char to unsigned char
  47 //              in struct DByte
  48 // 04/10/1999 - changed leftbyte. rightbyte to PRUint8 in struct DByte;
  49 //              added table UnicodeToGBKTable[0x5200]
  50 //
  51 // 05/16/2000 - added gUnicodeToGBKTableInitialized flag for optimization
  52 // ======================================================================================
  53 // Table GBKToUnicode[] maps the GBK code to its unicode.
  54 // The mapping data of this GBK table is obtained from
  55 // ftp://ftp.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP936.TXT
  56 // Frank Tang of Netscape wrote the original perl tool to re-align the
  57 // mapping data into an 8-item per line format ( i.e. file cp936map.txt ).
  58 //
  59 // The valid GBK charset range: left byte is [0x81, 0xfe], right byte are
  60 // [0x40, 0x7e] and [0x80, 0xfe]. But for the convenience of index
  61 // calculation, the table here has a single consecutive range of
  62 // [0x40, 0xfe] for the right byte. Those invalid chars whose right byte
  63 // is 0x7f will be mapped to undefined unicode 0xFFFF.
  64 //
  65 //
  66 // Table UnicodeToGBK[] maps the unicode to GBK code. To reduce memory usage, we
  67 // only do Unicode to GBK table mapping for unicode between 0x4E00 and 0xA000;
  68 // Others let converter to do search from table GBKToUnicode[]. If we want further
  69 // trade memory for performance, we can let more unicode to do table mapping to get
  70 // its GBK instead of searching table GBKToUnicode[].
  71 #ifndef _GBKU_H__
  72 #define _GBKU_H__
  73
  74
  75 #define  UCS2_NO_MAPPING ((PRUnichar) 0xfffd)
  76 #define UINT8_IN_RANGE(a, b, c) \
  77  (((PRUint8)(a) <= (PRUint8)(b))&&((PRUint8)(b) <= (PRUint8)(c)))
  78 #define UNICHAR_IN_RANGE(a, b, c) \
  79  (((PRUnichar)(a) <= (PRUnichar)(b))&&((PRUnichar)(b) <= (PRUnichar)(c)))
  80 #define CAST_CHAR_TO_UNICHAR(a) ((PRUnichar)((unsigned char)(a)))
  81 #define CAST_UNICHAR_TO_CHAR(a) ((char)a)
  82
  83 #define IS_ASCII(a) (0==(0xff80 & (a)))
  84 #define IS_GBK_EURO(c) ((char)0x80 == (c))
  85 #define UCS2_EURO  ((PRUnichar) 0x20ac)
  86
  87 #include "nsGBKConvUtil.h"
  88
  89 #endif /* _GBKU_H__ */