/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- * * The contents of this file are subject to the Netscape Public License * Version 1.0 (the "NPL"); you may not use this file except in * compliance with the NPL. You may obtain a copy of the NPL at * http://www.mozilla.org/NPL/ * * Software distributed under the NPL is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL * for the specific language governing rights and limitations under the * NPL. * * The Initial Developer of this code under the NPL is Netscape * Communications Corporation. Portions created by Netscape are * Copyright (C) 1998 Netscape Communications Corporation. All Rights * Reserved. */ /* vietnam.c */ #include "intlpriv.h" extern int MK_OUT_OF_MEMORY; /**************************< vietnam.c >*******************************/ /*** Purpose: Please put all conversion routines that related to ***/ /*** ------- the vietnamese character sets here for easy maintenance**/ /*** Modifications ***/ /*** 08/17/98: Vuong: - Add support for CP1258 ***/ /*** - Reduce similar functions into 1 function ***/ /*** - Cover the unsupported buffer for VNI & CP1258**/ /**********************************************************************/ /**********************************************************************/ /*** The following section handles conversion from VIQR to VISCII ***/ /*** Implementer: Vuong Nguyen (vlangsj@pluto.ftos.net) ***/ /**********************************************************************/ /*** VISCII - VIQR - VISCII - VIQR - VISCII - VIQR - VISCII - VIQR ***/ /**********************************************************************/ /***************************************************/ /*** For Mozilla, I disable the state feature of ***/ /*** VIQR (\V \M \L) by not defining TRUE_VIQR ***/ /***************************************************/ #ifdef TRUE_VIQR PRIVATE unsigned char VIQRStateName[6] = /*----0----1----2----3----4----5----*/ { 'v', 'V', 'm', 'M', 'l', 'L' }; #endif PRIVATE unsigned char DefaultVIQR[10] = /*----0----1----2----3----4----5----6----7----8----9---*/ /*----'----`----?----~----.----(----^----+----d----\---*/ { 39, 96, 63, 126, 46, 40, 94, 43, 100, 92 }; PRIVATE unsigned char HotChars[66] = /*----a----a(---a^---e----e^---i----o----o^---o+---u----u+---y----*/ { 97, 229, 226, 101, 234, 105, 111, 244, 189, 117, 223, 121, /*----a'---a`---a?---a~---a.---e'---e`---e?---e~---e.--------*/ 225, 224, 228, 227, 213, 233, 232, 235, 168, 169, /*----o'---o`---o?---o~---o.---u'---u`---u?---u~---u.---d----*/ 243, 242, 246, 245, 247, 250, 249, 252, 251, 248, 100, /*----A----A(---A^---E----E^---I----O----O^---O+---U----U+---Y----*/ 65, 197, 194, 69, 202, 73, 79, 212, 180, 85, 191, 89, /*----A'---A`---A?---A~---A.---E'---E`---E?---E~---E.--------*/ 193, 192, 196, 195, 128, 201, 200, 203, 136, 137, /*----O'---O`---O?---O~---O.---U'---U`---U?---U~---U.---D----*/ 211, 210, 153, 160, 154, 218, 217, 156, 157, 158, 68 }; PRIVATE unsigned char CombiToneChar[5][24] = /*************************** Acute ' ******************************/ { /*----a----a(---a^---e----e^---i----o----o^---o+---u----u+---y---*/ { 225, 161, 164, 233, 170, 237, 243, 175, 190, 250, 209, 253, /*----A----A(---A^---E----E^---I----O----O^---O+---U----U+---Y---*/ 193, 129, 132, 201, 138, 205, 211, 143, 149, 218, 186, 221 }, /*************************** Grave ` ******************************/ /*----a----a(---a^---e----e^---i----o----o^---o+---u----u+---y---*/ { 224, 162, 165, 232, 171, 236, 242, 176, 182, 249, 215, 207, /*----A----A(---A^---E----E^---I----O----O^---O+---U----U+---Y---*/ 192, 130, 133, 200, 139, 204, 210, 144, 150, 217, 187, 159 }, /*************************** Hook Above ? *************************/ /*----a----a(---a^---e----e^---i----o----o^---o+---u----u+---y---*/ { 228, 198, 166, 235, 172, 239, 246, 177, 183, 252, 216, 214, /*----A----A(---A^---E----E^---I----O----O^---O+---U----U+---Y---*/ 196, 2, 134, 203, 140, 155, 153, 145, 151, 156, 188, 20 }, /*************************** Tilde ~ ******************************/ /*----a----a(---a^---e----e^---i----o----o^---o+---u----u+---y---*/ { 227, 199, 231, 168, 173, 238, 245, 178, 222, 251, 230, 219, /*----A----A(---A^---E----E^---I----O----O^---O+---U----U+---Y---*/ 195, 5, 6, 136, 141, 206, 160, 146, 179, 157, 255, 25 }, /*************************** Dot Below . **************************/ /*----a----a(---a^---e----e^---i----o----o^---o+---u----u+---y---*/ { 213, 163, 167, 169, 174, 184, 247, 181, 254, 248, 241, 220, /*----A----A(---A^---E----E^---I----O----O^---O+---U----U+---Y---*/ 128, 131, 135, 137, 142, 152, 154, 147, 148, 158, 185, 30 } }; PRIVATE unsigned char CombiModiChar[3][66] = /*************************** Breve ( ******************************/ { /*----a----a(---a^---e----e^---i----o----o^---o+---u----u+---y---*/ { 229, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*----a'---a`---a?---a~---a.---e'---e`---e?---e~---e.--------*/ 161, 162, 198, 199, 163, 0, 0, 0, 0, 0, /*----o'---o`---o?---o~---o.---u'---u`---u?---u~---u.---d----*/ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*----A----A(---A^---E----E^---I----O----O^---O+---U----U+---Y---*/ 197, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*----A'---A`---A?---A~---A.---E'---E`---E?---E~---E.--------*/ 129, 130, 2, 5, 131, 0, 0, 0, 0, 0, /*----O'---O`---O?---O~---O.---U'---U`---U?---U~---U.---D----*/ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /*************************** Circumflex ^ *************************/ /*----a----a(---a^---e----e^---i----o----o^---o+---u----u+---y---*/ { 226, 0, 0, 234, 0, 0, 244, 0, 0, 0, 0, 0, /*----a'---a`---a?---a~---a.---e'---e`---e?---e~---e.--------*/ 164, 165, 166, 231, 167, 170, 171, 172, 173, 174, /*----o'---o`---o?---o~---o.---u'---u`---u?---u~---u.---d----*/ 175, 176, 177, 178, 181, 0, 0, 0, 0, 0, 0, /*----A----A(---A^---E----E^---I----O----O^---O+---U----U+---Y---*/ 194, 0, 0, 202, 0, 0, 212, 0, 0, 0, 0, 0, /*----A'---A`---A?---A~---A.---E'---E`---E?---E~---E.--------*/ 183, 133, 134, 6, 135, 138, 139, 140, 141, 142, /*----O'---O`---O?---O~---O.---U'---U`---U?---U~---U.---D----*/ 143, 144, 145, 146, 147, 0, 0, 0, 0, 0, 0 }, /*************************** Horn + *******************************/ /*----a----a(---a^---e----e^---i----o----o^---o+---u----u+---y---*/ { 0, 0, 0, 0, 0, 0, 189, 0, 0, 223, 0, 0, /*----a'---a`---a?---a~---a.---e'---e`---e?---e~---e.--------*/ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*----o'---o`---o?---o~---o.---u'---u`---u?---u~---u.---d----*/ 190, 182, 183, 222, 254, 209, 215, 216, 230, 241, 0, /*----A----A(---A^---E----E^---I----O----O^---O+---U----U+---Y---*/ 0, 0, 0, 0, 0, 0, 180, 0, 0, 191, 0, 0, /*----A'---A`---A?---A~---A.---E'---E`---E?---E~---E.--------*/ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*----O'---O`---O?---O~---O.---U'---U`---U?---U~---U.---D----*/ 149, 150, 151, 179, 148, 186, 187, 188, 255, 185, 0 } }; PRIVATE uint16 VIS_VIQ[128] = /*** 128 to 255 ***/ { 0x1041,0x2141,0x2241,0x3041,0x4141,0x4241,0x4441,0x5041, 0x0845,0x1045,0x4145,0x4245,0x4445,0x4845,0x5045,0x414f, 0x424f,0x444f,0x484f,0x504f,0x904f,0x814f,0x824f,0x844f, 0x1049,0x044f,0x104f,0x0449,0x0455,0x0855,0x1055,0x0259, 0x084f,0x2161,0x2261,0x3061,0x4161,0x4261,0x4461,0x5061, 0x0865,0x1065,0x4165,0x4265,0x4465,0x4865,0x5065,0x416f, 0x426f,0x446f,0x486f,0x884f,0x804f,0x506f,0x826f,0x846f, 0x1069,0x9055,0x8155,0x8255,0x8455,0x806f,0x816f,0x8055, 0x0241,0x0141,0x4041,0x0841,0x0441,0x2041,0x2461,0x2861, 0x0245,0x0145,0x4045,0x0445,0x0249,0x0149,0x0849,0x0279, 0x0000,0x8175,0x024f,0x014f,0x404f,0x1061,0x0479,0x8275, 0x8475,0x0255,0x0155,0x0879,0x1079,0x0159,0x886f,0x8075, 0x0261,0x0161,0x4061,0x0861,0x0461,0x2061,0x8875,0x4861, 0x0265,0x0165,0x4065,0x0465,0x0269,0x0169,0x0869,0x0469, 0x0000,0x9075,0x026f,0x016f,0x406f,0x086f,0x046f,0x106f, 0x1075,0x0275,0x0175,0x0875,0x0475,0x0179,0x906f,0x8855 }; PRIVATE unsigned char VNI_VIS[191] = /*** Mapping from 65 .. 255 ***/ { 0xff,0x42,0x43,0x44,0xff,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c, 0x4d,0x4e,0xff,0x50,0x51,0x52,0x53,0x54,0xff,0x56,0x57,0x58, 0xff,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f,0x60,0xff,0x62,0x63,0x64, 0xff,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0xff,0x70, 0x71,0x72,0x73,0x74,0xff,0x76,0x77,0x78,0xff,0x7a,0x7b,0x7c, 0x7d,0x7e,0x7f,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88, 0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,0x90,0x91,0x92,0x93,0x94, 0x95,0x96,0x97,0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,0xa0, 0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac, 0xad,0xae,0xaf,0xb0,0xb1,0xb2,0xb3,0xb4,0xb5,0xb6,0xb7,0xb8, 0xb9,0xba,0xbb,0xbc,0xbd,0xbe,0xbf,0xc0,0xc1,0xc2,0xc3,0xc4, 0xc5,0x9b,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0x1e,0xcf,0xd0, 0xd0,0x98,0xce,0xff,0xd5,0xff,0xd7,0xd8,0xd9,0xda,0xdb,0xdc, 0xdd,0xde,0xdf,0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xef,0xe7,0xe8, 0xe9,0xea,0xeb,0xec,0xed,0xdc,0xef,0xf0,0xf0,0xb8,0xee,0xff, 0xf5,0xff,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xdc }; PRIVATE uint16 VNIextended_VIS[118] = { 0xc085,0xc184,0xc2c2,0xc306,0xc487,0xc586,0xc882,0xc981, 0xcac5,0xcb83,0xcf80,0xd5c3,0xd8c0,0xd9c1,0xda02,0xdbc4, 0xdc05,0xc08b,0xc18a,0xc2ca,0xc38d,0xc48e,0xc58c,0xcf89, 0xd588,0xd8c8,0xd9c9,0xdbcb,0xc090,0xc18f,0xc2d4,0xc392, 0xc493,0xc591,0xcf9a,0xd5a0,0xd8d2,0xd9d3,0xdb99,0xcf9e, 0xd59d,0xd8d9,0xd9da,0xdb9c,0xcf1e,0xd519,0xd89f,0xd9dd, 0xdb14,0xe0a5,0xe1a4,0xe2e2,0xe3e7,0xe4a7,0xe5a6,0xe8a2, 0xe9a1,0xeae5,0xeba3,0xefd5,0xf5e3,0xf8e0,0xf9e1,0xfac6, 0xfbe4,0xfcc7,0xe0ab,0xe1aa,0xe2ea,0xe3ad,0xe4ae,0xe5ac, 0xefa9,0xf5a8,0xf8e8,0xf9e9,0xfbeb,0xe0b0,0xe1af,0xe2f4, 0xe3b2,0xe4b5,0xe5b1,0xeff7,0xf5f5,0xf8f2,0xf9f3,0xfbf6, 0xeff8,0xf5fb,0xf8f9,0xf9fa,0xfbfc,0xefdc,0xf5db,0xf8cf, 0xf9fd,0xfbd6,0xcf94,0xd5b3,0xd896,0xd995,0xdb97,0xcfb9, 0xd5ff,0xd8bb,0xd9ba,0xdbbc,0xeffe,0xf5de,0xf8b6,0xf9be, 0xfbb7,0xeff1,0xf5e6,0xf8d7,0xf9d1,0xfbd8 }; PRIVATE uint16 VIS_VNI[128] = /*** 128 to 255 ***/ { 0xcf41,0xc941,0xc841,0xcb41,0xc141,0xc041,0xc541,0xc441, 0xd545,0xcf45,0xc145,0xc045,0xc545,0xc345,0xc445,0xc14f, 0xc04f,0xc54f,0xc34f,0xc44f,0xcfd4,0xd9d4,0xd8d4,0xdbd4, 0x00d2,0xdb4f,0xcf4f,0x00c6,0xdb55,0xd555,0xcf55,0xd859, 0xd54f,0xe961,0xe861,0xeb61,0xe161,0xe061,0xe561,0xe461, 0xf565,0xef65,0xe165,0xe065,0xe565,0xe365,0xe465,0xe16f, 0xe06f,0xe56f,0xe36f,0xd5d4,0x00d4,0xe46f,0xf8f4,0xfbf4, 0x00f2,0xcfd6,0xd9d6,0xd8d6,0xdbd6,0x00f4,0xf9f4,0x00d6, 0xd841,0xd941,0xc241,0xd541,0xdb41,0xca41,0xfa61,0xfc61, 0xd845,0xd945,0xc245,0xdb45,0x00cc,0x00cd,0x00d3,0xf879, 0x00d1,0xf9f6,0xd84f,0xd94f,0xc24f,0xef61,0xfb79,0xf8f6, 0xfbf6,0xd855,0xd955,0xf579,0x00ee,0xd959,0xf5f4,0x00f6, 0xf861,0xf961,0xe261,0xf561,0xfb61,0xea61,0xf5f6,0xe361, 0xf865,0xf965,0xe265,0xfb65,0x00ec,0x00ed,0x00f3,0x00e6, 0x00f1,0xeff6,0xf86f,0xf96f,0xe26f,0xf56f,0xfb6f,0xef6f, 0xef75,0xf875,0xf975,0xf575,0xfb75,0xf979,0xeff4,0xd5d6 }; PRIVATE unsigned char CP1258_VIS[191] = /*** Mapping from 65 .. 255 ***/ { 0xff,0x42,0x43,0x44,0xff,0x46,0x47,0x48,0xff,0x4a,0x4b,0x4c, 0x4d,0x4e,0xff,0x50,0x51,0x52,0x53,0x54,0xff,0x56,0x57,0x58, 0xff,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f,0x60,0xff,0x62,0x63,0x64, 0xff,0x66,0x67,0x68,0xff,0x6a,0x6b,0x6c,0x6d,0x6e,0xff,0x70, 0x71,0x72,0x73,0x74,0xff,0x76,0x77,0x78,0xff,0x7a,0x7b,0x7c, 0x7d,0x7e,0x7f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f, 0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f, 0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f, 0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f, 0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f, 0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0xc0,0xc1,0xff,0xff,0x5f, 0x5f,0x5f,0x5f,0xc8,0xc9,0xff,0x5f,0x5f,0xcd,0x5f,0x5f,0xd0, 0x5f,0x5f,0xd3,0xff,0xff,0x5f,0x5f,0x5f,0xd9,0xda,0x5f,0x5f, 0xff,0x5f,0x5f,0xe0,0xe1,0xff,0xff,0x5f,0x5f,0x5f,0x5f,0xe8, 0xe9,0xff,0x5f,0x5f,0xed,0x5f,0x5f,0xf0,0x5f,0x5f,0xf3,0xff, 0xff,0x5f,0x5f,0x5f,0xf9,0xfa,0x5f,0x5f,0xff,0x5f,0x5f }; PRIVATE uint16 CP1258extended_VIS[104] = { 0x49cc,0x4fd2,0x599f,0x69ec,0x6ff2,0x79cf,0xc285,0xc382, 0xca8b,0xd490,0xd596,0xddbb,0xe2a5,0xe3a2,0xeaab,0xf4b0, 0xf5b6,0xfdd7,0x41c4,0x45cb,0x499b,0x4f99,0x559c,0x5914, 0x61e4,0x65eb,0x69ef,0x6ff6,0x75fc,0x79d6,0xc286,0xc302, 0xca8c,0xd491,0xd597,0xddbc,0xe2a6,0xe3c6,0xeaac,0xf4b1, 0xf5b7,0xfdd8,0x41c3,0x4588,0x49ce,0x4fa0,0x559d,0x5919, 0x61e3,0x65a8,0x69ee,0x6ff5,0x75fb,0x79db,0xc206,0xc305, 0xca8d,0xd492,0xd5b3,0xddff,0xe2e7,0xe3c7,0xeaad,0xf4b2, 0xf5de,0xfde6,0x59dd,0x79fd,0xc284,0xc381,0xca8a,0xd48f, 0xd595,0xddba,0xe2a4,0xe3a1,0xeaaa,0xf4af,0xf5be,0xfdd1, 0x4180,0x4589,0x4998,0x4f9a,0x559e,0x591e,0x61d5,0x65a9, 0x69b8,0x6ff7,0x75f8,0x79dc,0xc287,0xc383,0xca8e,0xd493, 0xd594,0xddb9,0xe2a7,0xe3a3,0xeaae,0xf4b5,0xf5fe,0xfdf1 }; PRIVATE uint16 VIS_CP1258[128] = /*** 128 to 255 ***/ { 0xf241,0xecc3,0xccc3,0xf2c3,0xecc2,0xccc2,0xd2c2,0xf2c2, 0xde45,0xf245,0xecca,0xccca,0xd2ca,0xdeca,0xf2ca,0xecd4, 0xccd4,0xd2d4,0xded4,0xf2d4,0xf2d5,0xecd5,0xccd5,0xd2d5, 0xf249,0xd24f,0xf24f,0xd249,0xd255,0xde55,0xf255,0xcc59, 0xde4f,0xece3,0xcce3,0xf2e3,0xece2,0xcce2,0xd2e2,0xf2e2, 0xde65,0xf265,0xecea,0xccea,0xd2ea,0xdeea,0xf2ea,0xecf4, 0xccf4,0xd2f4,0xdef4,0xded5,0x00d5,0xf2f4,0xccf5,0xd2f5, 0xf269,0xf2dd,0xecdd,0xccdd,0xd2dd,0x00f5,0xecf5,0x00dd, 0x00c0,0x00c1,0x00c2,0xde41,0xd241,0x00c3,0xd2e3,0xdee3, 0x00c8,0x00c9,0x00ca,0xd245,0xcc49,0x00cd,0xde49,0xcc79, 0x00d0,0xecfd,0xcc4f,0x00d3,0x00d4,0xf261,0xd279,0xccfd, 0xd2fd,0x00d9,0x00da,0xde79,0xf279,0xec59,0xdef5,0x00fd, 0x00e0,0x00e1,0x00e2,0xde61,0xd261,0x00e3,0xdefd,0xdee2, 0x00e8,0x00e9,0x00ea,0xd265,0xcc69,0x00ed,0xde69,0xd269, 0x00f0,0xf2fd,0xcc6f,0x00f3,0x00f4,0xde6f,0xd26f,0xf26f, 0xf275,0x00f9,0x00fa,0xde75,0xd275,0xec79,0xf2f5,0xdedd }; typedef int32 (*VietFunc)(const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf); PRIVATE unsigned char charType( unsigned char c); PRIVATE unsigned char IsVIQRWord(const unsigned char *s, int32 len_s, int32 fromI, int32 *toI); PRIVATE unsigned char C_VIQR_to_VISCII( unsigned char *HotKeys, unsigned char *CurState, unsigned char *LastChar, unsigned char NewChar); PRIVATE unsigned char C_VISCII_to_VIQR( unsigned char *HotKeys, unsigned char VISCII, unsigned char *char1, unsigned char *char2, unsigned char *char3); PRIVATE int32 S_VIQR_to_VISCII( const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf); PRIVATE int32 S_VISCII_to_VIQR( const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf); PRIVATE int32 S_VNI_to_VISCII( const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf); PRIVATE int32 S_VISCII_to_VNI( const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf); PRIVATE int32 S_CP1258_to_VISCII(const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf); PRIVATE int32 S_VISCII_to_CP1258(const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf); PRIVATE unsigned char *xlat_vis_ucs2_X(CCCDataObject obj, const unsigned char *buf, int32 bufsz); PRIVATE unsigned char *xlat_X_ucs2_vis(CCCDataObject obj, const unsigned char *buf, int32 bufsz); PRIVATE unsigned char *xlat_any_2_any ( CCCDataObject obj, const unsigned char *in_buf, int32 in_bufsz, VietFunc customfunc, int16 buf_ratio, int16 do_unconverted); /**********************************************************************/ /*** Function: charType() ***/ /*** Purpose: Determine the type of a character. ***/ /*** Returns: 0 - If c is a non-alpha character ***/ /*** 1 - If c is a consonant. ***/ /*** 2 - If c is a diacritical mark ***/ /*** 3 - If c is a hi-bit character ***/ /*** 4 - If c is a vowel (AEIOUY) ***/ /**********************************************************************/ PRIVATE unsigned char charType( unsigned char c) { if (c < 0x27) /*** below ' ***/ return (0); else if (c > 0x7e) /*** above ~ ***/ return (3); else { if (XP_STRCHR("),-/0123456789:;<=>@[\\]_{|}",c)) return(0); if (XP_IS_ALPHA(c)) { if (XP_STRCHR("AEIOUYaeiouy",c)) return(4); else return(1); } else return(2); } } /**********************************************************************/ /*** Function: IsVIQRWord() ***/ /*** Purpose: Parse a string, marks the location of the first word.***/ /*** Returns: 0: if the word is not a VIQR word ***/ /*** Implementer: Vuong Nguyen (vlangsj@pluto.ftos.net) ***/ /**********************************************************************/ PRIVATE unsigned char IsVIQRWord(const unsigned char *s, int32 len_s, int32 fromI, int32 *toI) { unsigned char c, t, flg; int32 i, ctr_letter, ctr_mark, ctr_afterperiod, ctr_vowel; flg = 0; ctr_afterperiod = ctr_vowel = - len_s; /* set it a big negative number */ ctr_letter = ctr_mark = 0; for (i=fromI; ((i < len_s) && ('\0' != (c = s[i]))); i++) { t = charType(c); if ((t == 0) || (t == 3)) /*** is control or hi-bit char? ***/ flg = 1; /**If it is not-viqr, mark the flag. **/ else { if (flg == 1) { /**And if after the not-viqr is viqr,**/ break; /**then done **/ } switch (t) { case 2: /*If a mark appears before any letter, ignore*/ if (ctr_letter > 0) ctr_mark++; if (c == '.') { /** Pay attention to the period **/ if (ctr_afterperiod < 0) ctr_afterperiod=0; } break; case 4: /* Vowel's first encounter will reset the counter*/ if (ctr_vowel > 0) { /** if Vowel,Consonant, and */ ctr_letter = 10; /** vowel again, then we */ } /** force an invalid word */ ctr_vowel = -1; /** flow to next case */ case 1: /* Consonant */ ctr_vowel++; ctr_letter++; /** Count the # of letters */ ctr_afterperiod++; } } } *toI = i-1; /*** So the first word will be between fromI and toI ***/ /*******************************************************************/ /*** Now, the hard part, I should check the semantic of the word,***/ /*** But it will take more comparisions, and I don't think it is ***/ /*** necessary, so I temporarily use the common sense here to ***/ /*** detect a vietnamese word. I'll implement semantic checking ***/ /*** later if it's really necessary ***/ if (*toI > fromI) { /*********************************************************/ /**First: If there are more 2 letters after a "." -> NO **/ if (ctr_afterperiod > 2) return(0); /*********************************************************/ /**Then: Check for special cases of DD, Dd, dD, dd ***/ c = s[fromI]; if ((c == 'D') || (c == 'd')) { c = s[fromI+1]; if ((c == 'D') || (c == 'd')) { ctr_letter--; if (ctr_mark == 0) ctr_mark++; } } /*********************************************************/ /**Then: Check for common knowledge: A vietnamese word ***/ /**always has less than 8 letters and less than 4 ***/ /**diacritical marks at the same time ***/ if ((ctr_letter > 0) && (ctr_letter < 8)) { if ((ctr_mark > 0) && (ctr_mark < 4)) return(1); } } return(0); } /*********************************************************************/ /*** Function : C_VIQR_to_VISCII() ***/ /*** Purpose: Given 2 VIQR characters, combine into 1 VISCII ***/ /*** ------- character if possible ***/ /*** Return: 0-FALSE: Couldn't combined. ***/ /*** ------: 1-TRUE: if LastChar is modified to be a VISCII char ***/ /*** 2-TRUE: A state is changing (return BackSpace) ***/ /*** Implementer: Vuong Nguyen (vlangsj@pluto.ftos.net) ***/ /*********************************************************************/ PRIVATE unsigned char C_VIQR_to_VISCII( unsigned char *HotKeys, unsigned char *CurState, unsigned char *LastChar, unsigned char NewChar) { unsigned char idkey, idchar, ochar, nchar, converted; converted = 0; ochar=*LastChar; #ifdef TRUE_VIQR unsigned char statechange, cs; /***********************************************************/ statechange=(ochar==HotKeys[9]); cs = *CurState; if (cs > 0) { if (cs >= 'a') { cs -= 32; /*** Convert from lowercase to uppercase ***/ *CurState = cs; *LastChar=NewChar; return(1); } else if (statechange) { for (idkey=0;idkey < 6; idkey++) if (NewChar==VIQRStateName[idkey]) break; statechange=(idkey & 6); if (statechange < 6) { /**A state change is detected**/ cs = VIQRStateName[statechange | 1]; *CurState=cs; *LastChar=8; return(2); } } } /********************************************************************/ if (cs==VIQRStateName[5]) { } /******** Literal **************/ else if (cs==VIQRStateName[3]) { /******** English **************/ if (statechange) { cs = '\\'; *CurState=cs; *LastChar=NewChar; converted=1; } } else #endif { /*************************************************************/ /******** Vietnamese (V) or English+ESC (\) mode *************/ /*************************************************************/ /****** Solve the problem of DD (4 different cases ***********/ nchar = NewChar; switch (nchar) { case 'D': /*** if (HotKeys[8]=='d') ***/ nchar = 'd'; case 'd': if (ochar == '-') ochar = nchar; break; case '*': nchar = '+'; /** sometimes a * is used */ break; /** for + instead, */ } /*********************************************************/ for (idkey=0; idkey < 9; idkey++) if (nchar == HotKeys[idkey]) { #ifdef TRUE_VIQR if (statechange) /*** Escape character ***/ converted=1; else #endif for (idchar=0; idchar < 66; idchar++) if (ochar==HotChars[idchar]) { if (idkey < 5) { /******** For '`?~. tones ****/ ochar=idchar % 33; if (ochar < 12) NewChar=CombiToneChar[idkey] [ochar+(idchar / 33)*12]; else NewChar=0; } /*****************************/ else if (idkey==8) { /****** For DD ****/ if ((idchar % 33) == 32) NewChar=ochar+140; else NewChar=0; } /*****************************/ else /****** For ^(+ modifiers ****/ NewChar=CombiModiChar[idkey-5] [idchar]; converted=(NewChar != 0); break; } if (converted) *LastChar=NewChar; break; } #ifdef TRUE_VIQR if ((!converted) && (cs=='\\')) *CurState=VIQRStateName[3]; #endif } /********************************************************************/ return(converted); } /*********************************************************************/ /*** Function : C_VISCII_to_VIQR() ***/ /*** Purpose: Given 1 VISCII character, split to VIQR chars ***/ /*** Return: Number of returned characters. ***/ /*** Implementer: Vuong Nguyen (vlangsj@pluto.ftos.net) ***/ /*********************************************************************/ PRIVATE unsigned char C_VISCII_to_VIQR( unsigned char *HotKeys, unsigned char VISCII, unsigned char *char1, unsigned char *char2, unsigned char *char3) { uint16 key; unsigned char mask, NumChars; NumChars=1; *char2=*char3=0; key=VISCII; /******************* Get the secret code *************************/ if (VISCII < 128) { if (VISCII < 32) switch (VISCII) { case 2 : key= 9281; break; case 20 : key=1113; break; case 5 : key=10305; break; case 25 : key=2137; break; case 6 : key=18497; break; case 30 : key=4185; break; } } else if ((VISCII==240) || (VISCII==208)) { key-=140; if (HotKeys[8]=='d') *char2=(unsigned char) key; else *char2=HotKeys[8]; NumChars++; } else key=VIS_VIQ[VISCII-128]; /*****************************************************************/ *char1=key & 0xFF; /*** Get the base letter *******/ if ((key >>= 8)) /*** Get the diacritic marks ***/ for (mask=0x80,VISCII=7; key ; mask >>= 1, VISCII--) if (key & mask) { if (++NumChars ==2) *char2=HotKeys[VISCII]; else *char3=HotKeys[VISCII]; key &= (~mask); } return(NumChars); } /**********************************************************************/ /*** Procedure : S_VIQR_to_VISCII() ***/ /*** Purpose : Convert a VIQR string to a VISCII string. ***/ /*** ------- This routine will not convert any word that seems ***/ /*** not to be a Vietnamese word. Doing this, we will ***/ /*** avoid the problem of blind converting email, url, ***/ /*** html tags. ***/ /*** I would suggest all other vietnamese encodings ***/ /*** using this routine to convert from VIQR to their ***/ /*** codes (using VISCII as intermediate code) ***/ /*** eg: VIQR -> VISCII -> Vxxx ***/ /*** With this technique, then we will not need many ***/ /*** (duplicate) VIQR conversion routines. ***/ /*** Implementer: Vuong Nguyen (vlangsj@pluto.ftos.net) ***/ /*** Note: 08/19/98: Implemented the unconverted buffer processing ***/ /*** ---- but then removed because it is too complicated ***/ /*** (must examine the whole word). ***/ /*** Anyway the user always understand VIQR text ***/ /**********************************************************************/ PRIVATE int32 S_VIQR_to_VISCII( const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf) { unsigned char oldc, newc, InitState, j, *p; int32 fromI, toI, ctr, p_sz; ctr=0; InitState = 0; p = (unsigned char *) frombuffer; p_sz = maxsz; fromI = 0; while (fromI < p_sz) { if ( IsVIQRWord(p, p_sz,fromI,&toI) ) { /*******************************************************/ /*** This is a VIQR word, need conversion **************/ j = 0; oldc = p[fromI++]; while ((fromI <= toI) && ('\0' != (newc = p[fromI]))) { j = C_VIQR_to_VISCII(DefaultVIQR,&InitState,&oldc,newc); if (j == 0) { tobuffer[ctr++] = oldc; oldc = newc; } fromI++; } if (j != 2) tobuffer[ctr++] = oldc; } else { /*******************************************************/ /*** This is not a VIQR word, simply copy it ***********/ while ((fromI <= toI) && ('\0' != (newc = p[fromI]))) { tobuffer[ctr++] = newc; fromI++; } } } tobuffer[ctr]=0; return(ctr); } /**********************************************************************/ /*** Procedure : S_VISCII_to_VIQR() ***/ /*** Purpose : Convert a VISCII string to a VIQR string. ***/ /*** IMPORTANT : The size of tobuffer must be bigger than the size ***/ /*** --------- of frombuffer about 3 times (worst case) ***/ /*** Implementer: Vuong Nguyen (vlangsj@pluto.ftos.net) ***/ /**********************************************************************/ PRIVATE int32 S_VISCII_to_VIQR( const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf) { int32 indx, i, n, ctr; unsigned char c, cc[3]; indx = ctr = 0; for (indx=0;((indx < maxsz) && ('\0' != (c=frombuffer[indx])));indx++) { n = C_VISCII_to_VIQR(DefaultVIQR,c,cc,cc+1,cc+2); if ((n==2) && (cc[1]=='d')) cc[1]=cc[0]; for (i=0; (i < n); i++) tobuffer[ctr++] = cc[i]; } tobuffer[ctr]=0; return(ctr); } /**********************************************************************/ /*** Function: S_VNI_to_VISCII() ***/ /*** Purpose: Converts a VNI string to a VISCII string ***/ /*** Implementer: Vuong Nguyen (vlangsj@pluto.ftos.net) ***/ /**********************************************************************/ PRIVATE int32 S_VNI_to_VISCII( const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf) { unsigned char c, v, *p; int32 i, ctr, p_sz, istart; uint16 j, fr_i, to_i, x, idex, ibuf; ctr = 0; for (ibuf=0; ibuf < 2; ibuf++) { if (ibuf == 0) { /*** Process the un-converted buffer first ***/ p = uncvtbuf; p_sz = XP_STRLEN((char*)p); istart = 0; } else { /*** Then the input buffer next ***/ p = (unsigned char *) frombuffer; p_sz = maxsz; if (istart != 1) istart=0; /*** adjust the index if ***/ } /*** the 1st char used ***/ /***************************************************/ for (i = istart;(i < p_sz) && ('\0' != (c = p[i])); i++) { if (c < 65) v = c; /*** saving 65 characters in the table ***/ else v = VNI_VIS[ c - 65 ]; if (v != 255) tobuffer[ctr++] = v; else { switch (c) { case 65: idex = 0x0010; break; case 69: idex = 0x111b; break; case 79: idex = 0x1c26; break; case 85: idex = 0x272b; break; case 89: idex = 0x2c30; break; case 97: idex = 0x3141; break; case 101: idex = 0x424c; break; case 111: idex = 0x4d57; break; case 117: idex = 0x585c; break; case 121: idex = 0x5d61; break; case 212: idex = 0x6266; break; case 214: idex = 0x676b; break; case 244: idex = 0x6c70; break; case 246: idex = 0x7175; break; default: idex = 0; } if (idex != 0) { j = i+1; if (j >= p_sz) v = 0; else v = p[j]; if ((v == 0) && (ibuf == 0) && (maxsz > 0)) { /*** If end of un-convert buffer, ***/ /*** get first char of input buffer***/ v = (unsigned char) frombuffer[0]; istart = 2; } if (v) { fr_i = (idex >> 8); to_i = (idex & 0xFF); for (j = fr_i; j <= to_i; j++) { idex = VNIextended_VIS[j]; x = (idex >> 8); if (x == v) { x = (idex & 0xFF); c = (unsigned char) x; i++; if (istart == 2) istart=1; break; } } if (j > to_i) { switch (c) { case 212: c = 180; break; case 214: c = 191; break; case 244: c = 189; break; case 246: c = 223; break; } } } } tobuffer[ctr++] = c; } } } tobuffer[ctr] = 0; return(ctr); } /**********************************************************************/ /*** Function: S_VISCII_to_VNI() ***/ /*** Purpose: Converts a VISCII string to a VNI string ***/ /*** Note: tobuffer must have size at least 2 times bigger than ***/ /*** ---- than frombuffer (1-byte charset -> 2-byte charset) ***/ /*** Implementer: Vuong Nguyen (vlangsj@pluto.ftos.net) ***/ /**********************************************************************/ PRIVATE int32 S_VISCII_to_VNI( const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf) { unsigned char c; uint16 idex; int32 i, ctr; ctr = 0; for (i = 0;(i < maxsz) && ('\0' != (c = (unsigned char) frombuffer[i])); i++) { idex = 0; if (c < 32) switch (c) { case 2: idex = 0xda41; break; case 5: idex = 0xdc41; break; case 6: idex = 0xc341; break; case 20: idex = 0xdb59; break; case 25: idex = 0xd559; break; case 30: c = 0xCE; break; } else if (c > 127) idex = VIS_VNI[c-128]; if (idex) { tobuffer[ctr++] = (unsigned char) (idex & 0xFF); c = (unsigned char) (idex >> 8); if (c) tobuffer[ctr++] = c; } else tobuffer[ctr++] = c; } tobuffer[ctr] = 0; return(ctr); } /**********************************************************************/ /*** Function: S_CP1258_to_VISCII() ***/ /*** Purpose: Converts a CP1258 string to a VISCII string ***/ /*** Implementer: Vuong Nguyen (vlangsj@pluto.ftos.net) ***/ /**********************************************************************/ PRIVATE int32 S_CP1258_to_VISCII( const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf) { unsigned char c, v, *p; int32 i, ctr, p_sz, istart; uint16 j, fr_i, to_i, x, idex, ibuf; ctr = 0; for (ibuf=0; ibuf < 2; ibuf++) { if (ibuf == 0) { /*** Process the un-converted buffer first ***/ p = uncvtbuf; p_sz = XP_STRLEN((char*)p); istart = 0; } else { /*** Then the input buffer next ***/ p = (unsigned char *) frombuffer; p_sz = maxsz; if (istart != 1) istart=0; /*** adjust the index if ***/ } /*** the 1st char used ***/ /***************************************************/ for (i = istart;(i < p_sz) && ('\0' != (c = p[i])); i++) { if (c < 65) v = c; /*** saving 65 characters in the table ***/ else v = CP1258_VIS[ c - 65 ]; if (v != 255) tobuffer[ctr++] = v; else { /*** now c contains the base letter *****************/ /*** Look for the next char as a diacritical mark ***/ j = i+1; if (j >= p_sz) v = 0; else v = p[j]; if ((v == 0) && (ibuf == 0) && (maxsz > 0)) { /*** If end of un-convert buffer, ***/ /*** get first char of input buffer***/ v = (unsigned char) frombuffer[0]; istart = 2; } if (v) { switch (v) { case 0xcc: idex=0x0011; break; case 0xd2: idex=0x1229; break; case 0xde: idex=0x2a41; break; case 0xec: idex=0x424f; break; case 0xf2: idex=0x5067; break; default: idex=0; } if (idex) { fr_i = (idex >> 8); to_i = (idex & 0xFF); for (j = fr_i; j <= to_i; j++) { idex = CP1258extended_VIS[j]; x = (idex >> 8); if (x == c) { x = (idex & 0xFF); c = (unsigned char) x; i++; if (istart == 2) istart=1; break; } } } } tobuffer[ctr++] = c; } } } tobuffer[ctr] = 0; return(ctr); } /**********************************************************************/ /*** Function: S_VISCII_to_CP1258() ***/ /*** Purpose: Converts a VISCII string to a CP1258 string ***/ /*** Note: tobuffer must have size at least 2 times bigger than ***/ /*** ---- than frombuffer (1-byte charset -> 2-byte charset) ***/ /*** Implementer: Vuong Nguyen (vlangsj@pluto.ftos.net) ***/ /**********************************************************************/ PRIVATE int32 S_VISCII_to_CP1258( const unsigned char *frombuffer, unsigned char *tobuffer, int32 maxsz, unsigned char *uncvtbuf) { unsigned char c; uint16 idex; int32 i, ctr; ctr = 0; for (i = 0;(i < maxsz) && ('\0' != (c = (unsigned char) frombuffer[i])); i++) { idex = 0; if (c < 32) switch (c) { case 2: idex = 0xd2c3; break; case 5: idex = 0xdec3; break; case 6: idex = 0xdec2; break; case 20: idex = 0xd259; break; case 25: idex = 0xde59; break; case 30: idex = 0xf259; break; } else if (c > 127) idex = VIS_CP1258[c-128]; if (idex) { tobuffer[ctr++] = (unsigned char) (idex & 0xFF); c = (unsigned char) (idex >> 8); if (c) tobuffer[ctr++] = c; } else tobuffer[ctr++] = c; } tobuffer[ctr] = 0; return(ctr); } /**********************************************************************/ /*** Function: xlat_vis_ucs2_X() ***/ /*** Purpose: Converts a converted temporary VISCII buffer to a ***/ /*** ------- to_charset via mz_AnyToAnyThroughUCS2 ***/ /**********************************************************************/ PRIVATE unsigned char *xlat_vis_ucs2_X(CCCDataObject obj, const unsigned char *buf, int32 bufsz) { unsigned char *out_buf; uint16 oldcsid; if (buf) { oldcsid = INTL_GetCCCFromCSID(obj); /* Save current setting */ INTL_SetCCCFromCSID(obj, CS_VIET_VISCII); /* then set viscii */ out_buf = (unsigned char *) mz_AnyToAnyThroughUCS2(obj, buf, bufsz); INTL_SetCCCFromCSID(obj, oldcsid); /* Restore current setting */ return(out_buf); } else return (NULL); } /**********************************************************************/ /*** Function: xlat_X_ucs2_vis() ***/ /*** Purpose: Converts a from_charset buffer to a temporary ***/ /*** ------- VISCII buffer via mz_AnyToAnyThroughUCS2 ***/ /**********************************************************************/ PRIVATE unsigned char *xlat_X_ucs2_vis(CCCDataObject obj, const unsigned char *buf, int32 bufsz) { unsigned char *out_buf; uint16 oldcsid; if (buf) { oldcsid = INTL_GetCCCToCSID(obj); /* Save current setting */ INTL_SetCCCToCSID(obj, CS_VIET_VISCII); /* then set viscii */ out_buf = (unsigned char *) mz_AnyToAnyThroughUCS2(obj, buf, bufsz); INTL_SetCCCToCSID(obj, oldcsid); /* Restore current setting */ return (out_buf); } else return (NULL); } /**********************************************************************/ /*** Function: xlat_any_2_any() ***/ /*** Purpose: Converts a from_csid buffer to a to_csid buffer ***/ /*** Arguments: in_buf: Ptr to the input buffer ***/ /*** --------- in_bufsize: Size in bytes of in_buf ***/ /*** customfunc: Address to the conversion function ***/ /*** buf_ratio: Contains the multiplication ratio for***/ /*** getting sufficient output memory ***/ /*** do_unconverted: flag telling to process unconverted**/ /*** buffer, it also used as a signal ***/ /*** where should stop when putting char**/ /*** into unconverted buffer ***/ /*** Returns: Returns NULL on failure, otherwise it returns a ***/ /*** ------- pointer to a buffer converted characters. ***/ /*** Caller must XP_FREE() this memory. ***/ /*** Implementer: Vuong Nguyen (vlangsj@pluto.ftos.net) ***/ /**********************************************************************/ PRIVATE unsigned char *xlat_any_2_any( CCCDataObject obj, const unsigned char *in_buf, int32 in_bufsz, VietFunc customfunc, int16 buf_ratio, int16 do_unconverted) { int32 out_bufsz, uncvt_bufsz, i, ctr; unsigned char *uncvtbuf, *out_buf; unsigned char c, nextunconv[UNCVTBUF_SIZE]; /***** Take care the un-converted buffer *********************/ ctr = 0; uncvtbuf = INTL_GetCCCUncvtbuf(obj); if (do_unconverted) { uncvt_bufsz = XP_STRLEN((char*)uncvtbuf); /*** Save the uncvtbuf only if the buffer is big, otherwise ***/ /*** we can assume this is the last packet, process all ***/ if (in_bufsz >= 128) { /*** is 128 big enough ***/ /*** We go backward until see a non-vowel character ***/ for (i=(in_bufsz-1); (i >= 0); i--) { c = in_buf[i]; /*** We also use do_unconverted as a stop char **/ /*** For viqr, stop when seeing a non-alpha char (<1)**/ /*** else, stop when NOT seeing vowel or hi-bit (<3)**/ if (charType(c) < do_unconverted) break; if (++ctr > UNCVTBUF_SIZE-1) { /*** Worst case, for CP1258 & VNI, the combining */ /*** vowels always happen at the last 6 letters, */ /*** otherwise, we can conclude it's not a viet */ /*** word, don't need to keep un-converted buffer*/ ctr = 0; break; } } } for (i=0; i < ctr;i++) { nextunconv[i] = in_buf[ in_bufsz - ctr + i ]; } nextunconv[i] = 0; /*** save next uncnvbuf ***/ in_bufsz -= ctr; /*** reduce the size of input buffer ***/ } else { /*** This happens for single-byte charset, we don't ***/ uncvtbuf[0] = 0; /*** need the un-converted buffer, ***/ uncvt_bufsz = 0; /*** so we clear it ***/ } /*************************************************************/ out_buf = NULL; out_bufsz = ((in_bufsz + uncvt_bufsz) * buf_ratio) + 1; if ((out_buf = (unsigned char *)XP_ALLOC(out_bufsz)) == (unsigned char *)NULL) { INTL_SetCCCRetval(obj, MK_OUT_OF_MEMORY); return(NULL); } out_bufsz = customfunc(in_buf, out_buf, in_bufsz, uncvtbuf); INTL_SetCCCLen(obj, out_bufsz); /* length not counting null */ /*************************************************************/ if (do_unconverted) { XP_STRCPY((char*)uncvtbuf,(char*)nextunconv); } return(out_buf); } /*####################################################################*/ /*### The following routines are called by Mozilla ###*/ /*####################################################################*/ /**********************************************************************/ /*** Function: viet_any_2_any() ***/ /*** Purpose: Converts a from_csid buffer to a to_csif buffer. ***/ /**********************************************************************/ MODULE_PRIVATE unsigned char *viet_any_2_any( CCCDataObject obj, const unsigned char *in_buf, int32 in_bufsz) { unsigned char *out_buf, *tmp_buf; uint16 fcsid, tcsid, use_tmp_mem; int32 bufsz; fcsid = INTL_GetCCCFromCSID(obj); tcsid = INTL_GetCCCToCSID(obj); if (fcsid == tcsid) /*** This case is similar to (CCCFunc) 0 ***/ return ((unsigned char *) in_buf); /*******************************************************************/ /*** Convert from from_csid buffer to a temporary VISCII buffer ****/ use_tmp_mem = 1; /*** Assume we will use a temporary VIS buf ***/ switch (fcsid) { case CS_VIET_VISCII: /*** No intermediate conversion is needed ***/ out_buf = (unsigned char *) in_buf; bufsz = in_bufsz; use_tmp_mem = 0; break; /*** These are multi-bytes charsets, cannot convert ***/ /*** via UCS2, so we use our internal conversion ***/ case CS_VIET_VIQR: /*** disable unconverted buffer processing **/ /*** by setting last parameter to be 0 **/ out_buf = xlat_any_2_any(obj,in_buf,in_bufsz, (VietFunc) S_VIQR_to_VISCII, 1, 0); break; case CS_VIET_VNI: out_buf = xlat_any_2_any(obj,in_buf,in_bufsz, (VietFunc) S_VNI_to_VISCII, 1, 3); break; case CS_CP_1258: out_buf = xlat_any_2_any(obj,in_buf,in_bufsz, (VietFunc) S_CP1258_to_VISCII, 1, 3); break; default: /*** A via-UCS2 conversion is needed ***/ out_buf = xlat_X_ucs2_vis(obj, in_buf, in_bufsz); } /*******************************************************************/ /*** Convert the temporary VISCII buffer to to_csid buffer ****/ if (out_buf) { if (use_tmp_mem) bufsz = INTL_GetCCCLen(obj); switch (tcsid) { case CS_VIET_VIQR: tmp_buf = xlat_any_2_any(obj,out_buf,bufsz, (VietFunc) S_VISCII_to_VIQR, 3, 0); break; case CS_VIET_VNI: tmp_buf = xlat_any_2_any(obj,out_buf,bufsz, (VietFunc) S_VISCII_to_VNI, 2, 0); break; case CS_CP_1258: tmp_buf = xlat_any_2_any(obj,out_buf,bufsz, (VietFunc) S_VISCII_to_CP1258, 2, 0); break; case CS_VIET_VISCII: use_tmp_mem = 0; tmp_buf = out_buf; break; default: tmp_buf = xlat_vis_ucs2_X(obj, out_buf, bufsz); } if (use_tmp_mem) { /*** Multi-byte functions already got memory*/ XP_FREE(out_buf); /* so we need to free the temp VIS buf ***/ } out_buf = tmp_buf; } return(out_buf); }