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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /intl/uconv/ucvcn/gbku.h | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'intl/uconv/ucvcn/gbku.h')
-rw-r--r-- | intl/uconv/ucvcn/gbku.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/intl/uconv/ucvcn/gbku.h b/intl/uconv/ucvcn/gbku.h new file mode 100644 index 000000000..19563c099 --- /dev/null +++ b/intl/uconv/ucvcn/gbku.h @@ -0,0 +1,55 @@ +/* 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__ */ |