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90 lines
4.0 KiB
C
90 lines
4.0 KiB
C
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Intel Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Yueheng Xu <yueheng.xu@intel.com>
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* Hoa Nguyen <hoa.nguyen@intel.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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// =======================================================================
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// Original Author: Yueheng Xu
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// email: yueheng.xu@intel.com
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// phone: (503)264-2248
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// Intel Corporation, Oregon, USA
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// Last Update: September 7, 1999
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// Revision History:
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// 09/07/1999 - initial version.
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// 09/28/1999 - changed leftbyte and rightbyte from char to unsigned char
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// in struct DByte
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// 04/10/1999 - changed leftbyte. rightbyte to PRUint8 in struct DByte;
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// added table UnicodeToGBKTable[0x5200]
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//
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// 05/16/2000 - added gUnicodeToGBKTableInitialized flag for optimization
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// ======================================================================================
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// Table GBKToUnicode[] maps the GBK code to its unicode.
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// The mapping data of this GBK table is obtained from
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// ftp://ftp.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP936.TXT
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// Frank Tang of Netscape wrote the original perl tool to re-align the
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// mapping data into an 8-item per line format ( i.e. file cp936map.txt ).
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//
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// The valid GBK charset range: left byte is [0x81, 0xfe], right byte are
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// [0x40, 0x7e] and [0x80, 0xfe]. But for the convenience of index
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// calculation, the table here has a single consecutive range of
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// [0x40, 0xfe] for the right byte. Those invalid chars whose right byte
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// is 0x7f will be mapped to undefined unicode 0xFFFF.
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//
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//
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// Table UnicodeToGBK[] maps the unicode to GBK code. To reduce memory usage, we
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// only do Unicode to GBK table mapping for unicode between 0x4E00 and 0xA000;
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// Others let converter to do search from table GBKToUnicode[]. If we want further
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// trade memory for performance, we can let more unicode to do table mapping to get
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// its GBK instead of searching table GBKToUnicode[].
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#ifndef _GBKU_H__
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#define _GBKU_H__
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#define UCS2_NO_MAPPING ((PRUnichar) 0xfffd)
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#define UINT8_IN_RANGE(a, b, c) \
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(((PRUint8)(a) <= (PRUint8)(b))&&((PRUint8)(b) <= (PRUint8)(c)))
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#define UNICHAR_IN_RANGE(a, b, c) \
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(((PRUnichar)(a) <= (PRUnichar)(b))&&((PRUnichar)(b) <= (PRUnichar)(c)))
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#define CAST_CHAR_TO_UNICHAR(a) ((PRUnichar)((unsigned char)(a)))
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#define CAST_UNICHAR_TO_CHAR(a) ((char)a)
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#define IS_ASCII(a) (0==(0xff80 & (a)))
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#define IS_GBK_EURO(c) ((char)0x80 == (c))
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#define UCS2_EURO ((PRUnichar) 0x20ac)
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#include "nsGBKConvUtil.h"
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#endif /* _GBKU_H__ */
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