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comparison: intl/uconv/ucvcn/gbku.h
intl/uconv/ucvcn/gbku.h
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- TOR_BUG_3246
- changeset 4
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| -1:000000000000 | 0:75edbcdfe834 |
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| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 // ======================================================================= | |
| 5 // Original Author: Yueheng Xu | |
| 6 // email: yueheng.xu@intel.com | |
| 7 // phone: (503)264-2248 | |
| 8 // Intel Corporation, Oregon, USA | |
| 9 // Last Update: September 7, 1999 | |
| 10 // Revision History: | |
| 11 // 09/07/1999 - initial version. | |
| 12 // 09/28/1999 - changed leftbyte and rightbyte from char to unsigned char | |
| 13 // in struct DByte | |
| 14 // 04/10/1999 - changed leftbyte. rightbyte to uint8_t in struct DByte; | |
| 15 // added table UnicodeToGBKTable[0x5200] | |
| 16 // | |
| 17 // 05/16/2000 - added gUnicodeToGBKTableInitialized flag for optimization | |
| 18 // ====================================================================================== | |
| 19 // Table GBKToUnicode[] maps the GBK code to its unicode. | |
| 20 // The mapping data of this GBK table is obtained from | |
| 21 // ftp://ftp.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP936.TXT | |
| 22 // Frank Tang of Netscape wrote the original perl tool to re-align the | |
| 23 // mapping data into an 8-item per line format ( i.e. file cp936map.txt ). | |
| 24 // | |
| 25 // The valid GBK charset range: left byte is [0x81, 0xfe], right byte are | |
| 26 // [0x40, 0x7e] and [0x80, 0xfe]. But for the convenience of index | |
| 27 // calculation, the table here has a single consecutive range of | |
| 28 // [0x40, 0xfe] for the right byte. Those invalid chars whose right byte | |
| 29 // is 0x7f will be mapped to undefined unicode 0xFFFF. | |
| 30 // | |
| 31 // | |
| 32 // Table UnicodeToGBK[] maps the unicode to GBK code. To reduce memory usage, we | |
| 33 // only do Unicode to GBK table mapping for unicode between 0x4E00 and 0xA000; | |
| 34 // Others let converter to do search from table GBKToUnicode[]. If we want further | |
| 35 // trade memory for performance, we can let more unicode to do table mapping to get | |
| 36 // its GBK instead of searching table GBKToUnicode[]. | |
| 37 #ifndef _GBKU_H__ | |
| 38 #define _GBKU_H__ | |
| 39 | |
| 40 | |
| 41 #define UCS2_NO_MAPPING ((char16_t) 0xfffd) | |
| 42 #define UINT8_IN_RANGE(a, b, c) \ | |
| 43 (((uint8_t)(a) <= (uint8_t)(b))&&((uint8_t)(b) <= (uint8_t)(c))) | |
| 44 #define UNICHAR_IN_RANGE(a, b, c) \ | |
| 45 (((char16_t)(a) <= (char16_t)(b))&&((char16_t)(b) <= (char16_t)(c))) | |
| 46 #define CAST_CHAR_TO_UNICHAR(a) ((char16_t)((unsigned char)(a))) | |
| 47 #define CAST_UNICHAR_TO_CHAR(a) ((char)a) | |
| 48 | |
| 49 #define IS_ASCII(a) (0==(0xff80 & (a))) | |
| 50 #define IS_GBK_EURO(c) ((char)0x80 == (c)) | |
| 51 #define UCS2_EURO ((char16_t) 0x20ac) | |
| 52 | |
| 53 #include "nsGBKConvUtil.h" | |
| 54 | |
| 55 #endif /* _GBKU_H__ */ |
