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321 lines
9.5 KiB
321 lines
9.5 KiB
/***
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*tombbmbc.c - convert 1-byte code to and from 2-byte code
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*
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* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* _mbbtombc() - converts 1-byte code to corresponding 2-byte code
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* _mbctombb() - converts 2-byte code to corresponding 1-byte code
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*
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*Revision History:
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* 11-19-92 KRS Ported from 16-bit sources.
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* 08-20-93 CFW Change short params to int for 32-bit tree.
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* 09-24-93 CFW Removed #ifdef _KANJI
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* 09-29-93 CFW Return c unchanged if not Kanji code page.
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* 10-06-93 GJF Replaced _CRTAPI1 with __cdecl.
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*
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*******************************************************************************/
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#ifdef _MBCS
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#include <cruntime.h>
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#include <mbdata.h>
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#include <mbstring.h>
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#include <mbctype.h>
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#define ASCLOW 0x20
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#define ASCHIGH 0x7e
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#define SBLOW 0xA1
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#define SBHIGH 0xDF
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#define MBLIMIT 0x8396
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static unsigned short mbbtable[] = {
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/*20*/ 0x8140, 0x8149, 0x8168, 0x8194, 0x8190, 0x8193, 0x8195, 0x8166,
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0x8169, 0x816a, 0x8196, 0x817b, 0x8143, 0x817c, 0x8144, 0x815e,
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/*30*/ 0x824f, 0x8250, 0x8251, 0x8252, 0x8253, 0x8254, 0x8255, 0x8256,
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0x8257, 0x8258, 0x8146, 0x8147, 0x8183, 0x8181, 0x8184, 0x8148,
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/*40*/ 0x8197, 0x8260, 0x8261, 0x8262, 0x8263, 0x8264, 0x8265, 0x8266,
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0x8267, 0x8268, 0x8269, 0x826a, 0x826b, 0x826c, 0x826d, 0x826e,
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/*50*/ 0x826f, 0x8270, 0x8271, 0x8272, 0x8273, 0x8274, 0x8275, 0x8276,
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0x8277, 0x8278, 0x8279, 0x816d, 0x818f, 0x816e, 0x814f, 0x8151,
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/*60*/ 0x8165, 0x8281, 0x8282, 0x8283, 0x8284, 0x8285, 0x8286, 0x8287,
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0x8288, 0x8289, 0x828a, 0x828b, 0x828c, 0x828d, 0x828e, 0x828f,
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/*70*/ 0x8290, 0x8291, 0x8292, 0x8293, 0x8294, 0x8295, 0x8296, 0x8297,
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0x8298, 0x8299, 0x829a, 0x816f, 0x8162, 0x8170, 0x8150,
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};
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static struct {
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unsigned char asc;
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char synonym;
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unsigned short mbccode;
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} mbctable[] = {
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// ASCII Code | Synonym | KANJI Code
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//Katakana Table
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{ 0xA7, 1, 0x8340 }, // 'a'
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{ 0xB1, 1, 0x8341 }, // 'A'
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{ 0xA8, 1, 0x8342 }, // 'i'
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{ 0xB2, 1, 0x8343 }, // 'I'
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{ 0xA9, 1, 0x8344 }, // 'u'
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{ 0xB3, 1, 0x8345 }, // 'U'
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{ 0xAA, 1, 0x8346 }, // 'e'
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{ 0xB4, 1, 0x8347 }, // 'E'
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{ 0xAB, 1, 0x8348 }, // 'o'
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{ 0xB5, 1, 0x8349 }, // 'O'
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{ 0xB6, 2, 0x834A }, // 'KA'
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{ 0xB7, 2, 0x834C }, // 'KI'
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{ 0xB8, 2, 0x834E }, // 'KU'
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{ 0xB9, 2, 0x8350 }, // 'KE'
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{ 0xBA, 2, 0x8352 }, // 'KO'
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{ 0xBB, 2, 0x8354 }, // 'SA'
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{ 0xBC, 2, 0x8356 }, // 'SI'
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{ 0xBD, 2, 0x8358 }, // 'SU'
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{ 0xBE, 2, 0x835A }, // 'SE'
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{ 0xBF, 2, 0x835C }, // 'SO'
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{ 0xC0, 2, 0x835E }, // 'TA'
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{ 0xC1, 2, 0x8360 }, // 'CHI'
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{ 0xAF, 1, 0x8362 }, // 'tsu'
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{ 0xC2, 2, 0x8363 }, // 'TSU'
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{ 0xC3, 2, 0x8365 }, // 'TE''
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{ 0xC4, 2, 0x8367 }, // 'TO''
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{ 0xC5, 1, 0x8369 }, // 'NA'
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{ 0xC6, 1, 0x836A }, // 'NI'
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{ 0xC7, 1, 0x836B }, // 'NU'
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{ 0xC8, 1, 0x836C }, // 'NE'
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{ 0xC9, 1, 0x836D }, // 'NO'
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{ 0xCA, 3, 0x836E }, // 'HA'
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{ 0xCB, 3, 0x8371 }, // 'HI'
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{ 0xCC, 3, 0x8374 }, // 'FU'
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{ 0xCD, 3, 0x8377 }, // 'HE'
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{ 0xCE, 3, 0x837A }, // 'HO'
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{ 0xCF, 1, 0x837D }, // 'MA'
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{ 0xD0, 1, 0x837E }, // 'MI'
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{ 0xD1, 1, 0x8380 }, // 'MU'
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{ 0xD2, 1, 0x8381 }, // 'ME'
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{ 0xD3, 1, 0x8382 }, // 'MO'
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{ 0xAC, 1, 0x8383 }, // 'ya'
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{ 0xD4, 1, 0x8384 }, // 'YA'
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{ 0xAD, 1, 0x8385 }, // 'yu'
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{ 0xD5, 1, 0x8386 }, // 'YU'
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{ 0xAE, 1, 0x8387 }, // 'yo'
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{ 0xD6, 1, 0x8388 }, // 'YO'
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{ 0xD7, 1, 0x8389 }, // 'RA'
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{ 0xD8, 1, 0x838A }, // 'RI'
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{ 0xD9, 1, 0x838B }, // 'RU'
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{ 0xDA, 1, 0x838C }, // 'RE'
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{ 0xDB, 1, 0x838D }, // 'RO'
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{ 0xDC, 2, 0x838E }, // 'WA'
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{ 0xB2, 1, 0x8390 }, // 'I'
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{ 0xB4, 1, 0x8391 }, // 'E'
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{ 0xA6, 1, 0x8392 }, // 'WO'
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{ 0xDD, 1, 0x8393 }, // 'N'
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{ 0xB3, 1, 0x8394 }, // 'U'
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{ 0xB6, 1, 0x8395 }, // 'KA'
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{ 0xB9, 1, 0x8396 }, // 'KE'
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// Hiragana Table
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{ 0xA7, 1, 0x829F }, // 'a'
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{ 0xB1, 1, 0x82A0 }, // 'A'
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{ 0xA8, 1, 0x82A1 }, // 'i'
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{ 0xB2, 1, 0x82A2 }, // 'I'
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{ 0xA9, 1, 0x82A3 }, // 'u'
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{ 0xB3, 1, 0x82A4 }, // 'U'
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{ 0xAA, 1, 0x82A5 }, // 'e'
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{ 0xB4, 1, 0x82A6 }, // 'E'
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{ 0xAB, 1, 0x82A7 }, // 'o'
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{ 0xB5, 1, 0x82A8 }, // 'O'
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{ 0xB6, 2, 0x82A9 }, // 'KA'
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{ 0xB7, 2, 0x82AB }, // 'KI'
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{ 0xB8, 2, 0x82AD }, // 'KU'
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{ 0xB9, 2, 0x82AF }, // 'KE'
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{ 0xBA, 2, 0x82B1 }, // 'KO'
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{ 0xBB, 2, 0x82B3 }, // 'SA'
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{ 0xBC, 2, 0x82B5 }, // 'SI'
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{ 0xBD, 2, 0x82B7 }, // 'SU'
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{ 0xBE, 2, 0x82B9 }, // 'SE'
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{ 0xBF, 2, 0x82BB }, // 'SO'
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{ 0xC0, 2, 0x82BD }, // 'TA'
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{ 0xC1, 2, 0x82BF }, // 'CHI'
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{ 0xAF, 1, 0x82C1 }, // 'tsu'
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{ 0xC2, 2, 0x82C2 }, // 'TSU'
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{ 0xC3, 2, 0x82C4 }, // 'TE'
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{ 0xC4, 2, 0x82C6 }, // 'TO'
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{ 0xC5, 1, 0x82C8 }, // 'NA'
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{ 0xC6, 1, 0x82C9 }, // 'NI'
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{ 0xC7, 1, 0x82CA }, // 'NU'
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{ 0xC8, 1, 0x82CB }, // 'NE'
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{ 0xC9, 1, 0x82CC }, // 'NO'
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{ 0xCA, 3, 0x82CD }, // 'HA'
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{ 0xCB, 3, 0x82D0 }, // 'HI'
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{ 0xCC, 3, 0x82D3 }, // 'FU'
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{ 0xCD, 3, 0x82D6 }, // 'HE'
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{ 0xCE, 3, 0x82D9 }, // 'HO'
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{ 0xCF, 1, 0x82DC }, // 'MA'
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{ 0xD0, 1, 0x82DD }, // 'MI'
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{ 0xD1, 1, 0x82DE }, // 'MU'
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{ 0xD2, 1, 0x82DF }, // 'ME'
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{ 0xD3, 1, 0x82E0 }, // 'MO'
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{ 0xAC, 1, 0x82E1 }, // 'ya'
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{ 0xD4, 1, 0x82E2 }, // 'YA'
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{ 0xAD, 1, 0x82E3 }, // 'yu'
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{ 0xD5, 1, 0x82E4 }, // 'YU'
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{ 0xAE, 1, 0x82E5 }, // 'yo'
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{ 0xD6, 1, 0x82E6 }, // 'YO'
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{ 0xD7, 1, 0x82E7 }, // 'RA'
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{ 0xD8, 1, 0x82E8 }, // 'RI'
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{ 0xD9, 1, 0x82E9 }, // 'RU'
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{ 0xDA, 1, 0x82EA }, // 'RE'
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{ 0xDB, 1, 0x82EB }, // 'RO'
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{ 0xDC, 2, 0x82EC }, // 'WA'
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{ 0xB2, 1, 0x82EE }, // 'I'
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{ 0xB4, 1, 0x82EF }, // 'E'
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{ 0xA6, 1, 0x82F0 }, // 'WO'
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{ 0xDD, 1, 0x82F1 }, // 'N'
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{ 0x20, 1, 0x8140 }, // ' '
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// { 0xA0, 1, 0x8140 }, // ' '
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{ 0xA1, 1, 0x8142 }, //
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{ 0xA2, 1, 0x8175 }, //
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{ 0xA3, 1, 0x8176 }, //
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{ 0xA4, 1, 0x8141 }, //
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{ 0xA5, 1, 0x8145 }, //
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{ 0xB0, 1, 0x815b }, // '-'
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{ 0xDE, 1, 0x814a }, //
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{ 0xDF, 1, 0x814b }, //
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{ 0, 0, 0 } // == End of Table
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};
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/***
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*unsigned int _mbbtombc(c) - convert mbbvalue to mbcvalue.
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*
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*Purpose:
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* Converts mbbvalue (1-byte) to corresponding mbcvalue code (2-byte).
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*
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*Entry:
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* unsigned int c - mbbvalue character code to be converted.
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*
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*Exit:
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* Returns corresponding mbbvalue (2-byte).
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*
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*Exceptions:
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* Returns c if corresponding 2-byte code does not exist.
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*
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*******************************************************************************/
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unsigned int __cdecl _mbbtombc(
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unsigned int c
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)
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{
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int i;
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if (__mbcodepage != _KANJI_CP)
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return (c);
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/* If c is in the ASCII range, then look up the corresponding value
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* in the mbbtable. */
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if (c >= ASCLOW && c <= ASCHIGH)
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return (mbbtable[c-ASCLOW]);
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/* Exception for KANJI */
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if (c == 0xdc)
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return( 0x838f );
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/* If c is a Katakana character, lookup in mbctable. */
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if (c >= SBLOW && c <= SBHIGH)
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{
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for(i = 0; mbctable[i].asc != 0; i++)
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{
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if ( c == (unsigned int)mbctable[i].asc ) {
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c = (unsigned int)mbctable[i].mbccode ;
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break;
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}
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}
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}
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return(c);
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}
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/***
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*unsigned int _mbctombb(c) - convert mbcvalue to mbbvalue.
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*
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*Purpose:
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* Converts mbcvalue (2-byte) to corresponding mbbvalue (1-byte).
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*
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*Entry:
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* unsigned int c - mbcvalue character code to convert.
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*
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*Exit:
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* Returns corresponding mbbvalue (1-byte).
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*
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*Exceptions:
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* Returns c if corresponding 1-byte code does not exist.
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*
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*******************************************************************************/
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unsigned int __cdecl _mbctombb(
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unsigned int c
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)
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{
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int i;
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int result;
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if (__mbcodepage != _KANJI_CP)
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return (c);
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/* Check to see if c is in the ASCII range. */
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for (i = 0; i <= ASCHIGH - ASCLOW; i++)
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{
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if (c == (unsigned int)mbbtable[i])
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return((unsigned int)i + ASCLOW);
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}
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/* If c is a valid MBCS value, search the mbctable for value. */
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if ( c <= MBLIMIT )
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{
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for (i = 0; mbctable[i].asc ; i++)
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{
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if ( !(result = (int)c - (int)mbctable[i].mbccode) )
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return( (unsigned int)mbctable[i].asc );
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else if (((c & 0xff00) == (unsigned int)(mbctable[i].mbccode & 0xff00))
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&& (result > 0)
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&& ((result - mbctable[i].synonym) < 0))
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return( (unsigned int)mbctable[i].asc );
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}
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}
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return(c);
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}
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#endif /* _MBCS */
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