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 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 // =======================================================================

 // Original Author: Yueheng Xu

 // email: yueheng.xu@intel.com

 // phone: (503)264-2248

 // Intel Corporation, Oregon, USA

 // Last Update: September 7, 1999

 // Revision History: 

 // 09/07/1999 - initial version.

 // 09/28/1999 - changed leftbyte and rightbyte from char to unsigned char 

 //              in struct DByte

 // 04/10/1999 - changed leftbyte. rightbyte to uint8_t in struct DByte;

 //              added table UnicodeToGBKTable[0x5200]

 //            

 // 05/16/2000 - added gUnicodeToGBKTableInitialized flag for optimization

 // ======================================================================================

 // Table GBKToUnicode[] maps the GBK code to its unicode.

 // The mapping data of this GBK table is obtained from 

 // ftp://ftp.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP936.TXT

 // Frank Tang of Netscape wrote the original perl tool to re-align the 

 // mapping data into an 8-item per line format ( i.e. file cp936map.txt ).

 //

 // The valid GBK charset range: left byte is [0x81, 0xfe], right byte are

 // [0x40, 0x7e] and [0x80, 0xfe]. But for the convenience of index 

 // calculation, the table here has a single consecutive range of 

 // [0x40, 0xfe] for the right byte. Those invalid chars whose right byte 

 // is 0x7f will be mapped to undefined unicode 0xFFFF.

 //

 // 

 // Table UnicodeToGBK[] maps the unicode to GBK code. To reduce memory usage, we

 // only do Unicode to GBK table mapping for unicode between 0x4E00 and 0xA000; 

 // Others let converter to do search from table GBKToUnicode[]. If we want further

 // trade memory for performance, we can let more unicode to do table mapping to get

 // its GBK instead of searching table GBKToUnicode[]. 

 #ifndef _GBKU_H__

 #define _GBKU_H__

 #define  UCS2_NO_MAPPING ((char16_t) 0xfffd)

 #define UINT8_IN_RANGE(a, b, c) \

  (((uint8_t)(a) <= (uint8_t)(b))&&((uint8_t)(b) <= (uint8_t)(c)))

 #define UNICHAR_IN_RANGE(a, b, c) \

  (((char16_t)(a) <= (char16_t)(b))&&((char16_t)(b) <= (char16_t)(c)))

 #define CAST_CHAR_TO_UNICHAR(a) ((char16_t)((unsigned char)(a)))

 #define CAST_UNICHAR_TO_CHAR(a) ((char)a)

 #define IS_ASCII(a) (0==(0xff80 & (a)))

 #define IS_GBK_EURO(c) ((char)0x80 == (c))

 #define UCS2_EURO  ((char16_t) 0x20ac)

 #include "nsGBKConvUtil.h"

 #endif /* _GBKU_H__ */