1 /* 2 ********************************************************************** 3 * Copyright (C) 2000-2015, International Business Machines 4 * Corporation and others. All Rights Reserved. 5 ********************************************************************** 6 * file name: ucnvisci.c 7 * encoding: US-ASCII 8 * tab size: 8 (not used) 9 * indentation:4 10 * 11 * created on: 2001JUN26 12 * created by: Ram Viswanadha 13 * 14 * Date Name Description 15 * 24/7/2001 Ram Added support for EXT character handling 16 */ 17 18 #include "unicode/utypes.h" 19 20 #if !UCONFIG_NO_CONVERSION && !UCONFIG_NO_LEGACY_CONVERSION && !UCONFIG_ONLY_HTML_CONVERSION 21 22 #include "unicode/ucnv.h" 23 #include "unicode/ucnv_cb.h" 24 #include "unicode/utf16.h" 25 #include "cmemory.h" 26 #include "ucnv_bld.h" 27 #include "ucnv_cnv.h" 28 #include "cstring.h" 29 #include "uassert.h" 30 31 #define UCNV_OPTIONS_VERSION_MASK 0xf 32 #define NUKTA 0x093c 33 #define HALANT 0x094d 34 #define ZWNJ 0x200c /* Zero Width Non Joiner */ 35 #define ZWJ 0x200d /* Zero width Joiner */ 36 #define INVALID_CHAR 0xffff 37 #define ATR 0xEF /* Attribute code */ 38 #define EXT 0xF0 /* Extension code */ 39 #define DANDA 0x0964 40 #define DOUBLE_DANDA 0x0965 41 #define ISCII_NUKTA 0xE9 42 #define ISCII_HALANT 0xE8 43 #define ISCII_DANDA 0xEA 44 #define ISCII_INV 0xD9 45 #define ISCII_VOWEL_SIGN_E 0xE0 46 #define INDIC_BLOCK_BEGIN 0x0900 47 #define INDIC_BLOCK_END 0x0D7F 48 #define INDIC_RANGE (INDIC_BLOCK_END - INDIC_BLOCK_BEGIN) 49 #define VOCALLIC_RR 0x0931 50 #define LF 0x0A 51 #define ASCII_END 0xA0 52 #define NO_CHAR_MARKER 0xFFFE 53 #define TELUGU_DELTA DELTA * TELUGU 54 #define DEV_ABBR_SIGN 0x0970 55 #define DEV_ANUDATTA 0x0952 56 #define EXT_RANGE_BEGIN 0xA1 57 #define EXT_RANGE_END 0xEE 58 59 #define PNJ_DELTA 0x0100 60 #define PNJ_BINDI 0x0A02 61 #define PNJ_TIPPI 0x0A70 62 #define PNJ_SIGN_VIRAMA 0x0A4D 63 #define PNJ_ADHAK 0x0A71 64 #define PNJ_HA 0x0A39 65 #define PNJ_RRA 0x0A5C 66 67 typedef enum { 68 DEVANAGARI =0, 69 BENGALI, 70 GURMUKHI, 71 GUJARATI, 72 ORIYA, 73 TAMIL, 74 TELUGU, 75 KANNADA, 76 MALAYALAM, 77 DELTA=0x80 78 }UniLang; 79 80 /** 81 * Enumeration for switching code pages if <ATR>+<one of below values> 82 * is encountered 83 */ 84 typedef enum { 85 DEF = 0x40, 86 RMN = 0x41, 87 DEV = 0x42, 88 BNG = 0x43, 89 TML = 0x44, 90 TLG = 0x45, 91 ASM = 0x46, 92 ORI = 0x47, 93 KND = 0x48, 94 MLM = 0x49, 95 GJR = 0x4A, 96 PNJ = 0x4B, 97 ARB = 0x71, 98 PES = 0x72, 99 URD = 0x73, 100 SND = 0x74, 101 KSM = 0x75, 102 PST = 0x76 103 }ISCIILang; 104 105 typedef enum { 106 DEV_MASK =0x80, 107 PNJ_MASK =0x40, 108 GJR_MASK =0x20, 109 ORI_MASK =0x10, 110 BNG_MASK =0x08, 111 KND_MASK =0x04, 112 MLM_MASK =0x02, 113 TML_MASK =0x01, 114 ZERO =0x00 115 }MaskEnum; 116 117 #define ISCII_CNV_PREFIX "ISCII,version=" 118 119 typedef struct { 120 UChar contextCharToUnicode; /* previous Unicode codepoint for contextual analysis */ 121 UChar contextCharFromUnicode; /* previous Unicode codepoint for contextual analysis */ 122 uint16_t defDeltaToUnicode; /* delta for switching to default state when DEF is encountered */ 123 uint16_t currentDeltaFromUnicode; /* current delta in Indic block */ 124 uint16_t currentDeltaToUnicode; /* current delta in Indic block */ 125 MaskEnum currentMaskFromUnicode; /* mask for current state in toUnicode */ 126 MaskEnum currentMaskToUnicode; /* mask for current state in toUnicode */ 127 MaskEnum defMaskToUnicode; /* mask for default state in toUnicode */ 128 UBool isFirstBuffer; /* boolean for fromUnicode to see if we need to announce the first script */ 129 UBool resetToDefaultToUnicode; /* boolean for reseting to default delta and mask when a newline is encountered*/ 130 char name[sizeof(ISCII_CNV_PREFIX) + 1]; 131 UChar32 prevToUnicodeStatus; /* Hold the previous toUnicodeStatus. This is necessary because we may need to know the last two code points. */ 132 } UConverterDataISCII; 133 134 typedef struct LookupDataStruct { 135 UniLang uniLang; 136 MaskEnum maskEnum; 137 ISCIILang isciiLang; 138 } LookupDataStruct; 139 140 static const LookupDataStruct lookupInitialData[]={ 141 { DEVANAGARI, DEV_MASK, DEV }, 142 { BENGALI, BNG_MASK, BNG }, 143 { GURMUKHI, PNJ_MASK, PNJ }, 144 { GUJARATI, GJR_MASK, GJR }, 145 { ORIYA, ORI_MASK, ORI }, 146 { TAMIL, TML_MASK, TML }, 147 { TELUGU, KND_MASK, TLG }, 148 { KANNADA, KND_MASK, KND }, 149 { MALAYALAM, MLM_MASK, MLM } 150 }; 151 152 /* 153 * For special handling of certain Gurmukhi characters. 154 * Bit 0 (value 1): PNJ consonant 155 * Bit 1 (value 2): PNJ Bindi Tippi 156 */ 157 static const uint8_t pnjMap[80] = { 158 /* 0A00..0A0F */ 159 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 160 /* 0A10..0A1F */ 161 0, 0, 0, 0, 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 162 /* 0A20..0A2F */ 163 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 3, 3, 3, 164 /* 0A30..0A3F */ 165 3, 0, 0, 0, 0, 3, 3, 0, 3, 3, 0, 0, 0, 0, 0, 2, 166 /* 0A40..0A4F */ 167 0, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 168 }; 169 170 static UBool 171 isPNJConsonant(UChar32 c) { 172 if (c < 0xa00 || 0xa50 <= c) { 173 return FALSE; 174 } else { 175 return (UBool)(pnjMap[c - 0xa00] & 1); 176 } 177 } 178 179 static UBool 180 isPNJBindiTippi(UChar32 c) { 181 if (c < 0xa00 || 0xa50 <= c) { 182 return FALSE; 183 } else { 184 return (UBool)(pnjMap[c - 0xa00] >> 1); 185 } 186 } 187 188 static void _ISCIIOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode) { 189 if(pArgs->onlyTestIsLoadable) { 190 return; 191 } 192 193 cnv->extraInfo = uprv_malloc(sizeof(UConverterDataISCII)); 194 195 if (cnv->extraInfo != NULL) { 196 int32_t len=0; 197 UConverterDataISCII *converterData= 198 (UConverterDataISCII *) cnv->extraInfo; 199 converterData->contextCharToUnicode=NO_CHAR_MARKER; 200 cnv->toUnicodeStatus = missingCharMarker; 201 converterData->contextCharFromUnicode=0x0000; 202 converterData->resetToDefaultToUnicode=FALSE; 203 /* check if the version requested is supported */ 204 if ((pArgs->options & UCNV_OPTIONS_VERSION_MASK) < 9) { 205 /* initialize state variables */ 206 converterData->currentDeltaFromUnicode 207 = converterData->currentDeltaToUnicode 208 = converterData->defDeltaToUnicode = (uint16_t)(lookupInitialData[pArgs->options & UCNV_OPTIONS_VERSION_MASK].uniLang * DELTA); 209 210 converterData->currentMaskFromUnicode 211 = converterData->currentMaskToUnicode 212 = converterData->defMaskToUnicode = lookupInitialData[pArgs->options & UCNV_OPTIONS_VERSION_MASK].maskEnum; 213 214 converterData->isFirstBuffer=TRUE; 215 (void)uprv_strcpy(converterData->name, ISCII_CNV_PREFIX); 216 len = (int32_t)uprv_strlen(converterData->name); 217 converterData->name[len]= (char)((pArgs->options & UCNV_OPTIONS_VERSION_MASK) + '0'); 218 converterData->name[len+1]=0; 219 220 converterData->prevToUnicodeStatus = 0x0000; 221 } else { 222 uprv_free(cnv->extraInfo); 223 cnv->extraInfo = NULL; 224 *errorCode = U_ILLEGAL_ARGUMENT_ERROR; 225 } 226 227 } else { 228 *errorCode =U_MEMORY_ALLOCATION_ERROR; 229 } 230 } 231 232 static void _ISCIIClose(UConverter *cnv) { 233 if (cnv->extraInfo!=NULL) { 234 if (!cnv->isExtraLocal) { 235 uprv_free(cnv->extraInfo); 236 } 237 cnv->extraInfo=NULL; 238 } 239 } 240 241 static const char* _ISCIIgetName(const UConverter* cnv) { 242 if (cnv->extraInfo) { 243 UConverterDataISCII* myData= (UConverterDataISCII*)cnv->extraInfo; 244 return myData->name; 245 } 246 return NULL; 247 } 248 249 static void _ISCIIReset(UConverter *cnv, UConverterResetChoice choice) { 250 UConverterDataISCII* data =(UConverterDataISCII *) (cnv->extraInfo); 251 if (choice<=UCNV_RESET_TO_UNICODE) { 252 cnv->toUnicodeStatus = missingCharMarker; 253 cnv->mode=0; 254 data->currentDeltaToUnicode=data->defDeltaToUnicode; 255 data->currentMaskToUnicode = data->defMaskToUnicode; 256 data->contextCharToUnicode=NO_CHAR_MARKER; 257 data->prevToUnicodeStatus = 0x0000; 258 } 259 if (choice!=UCNV_RESET_TO_UNICODE) { 260 cnv->fromUChar32=0x0000; 261 data->contextCharFromUnicode=0x00; 262 data->currentMaskFromUnicode=data->defMaskToUnicode; 263 data->currentDeltaFromUnicode=data->defDeltaToUnicode; 264 data->isFirstBuffer=TRUE; 265 data->resetToDefaultToUnicode=FALSE; 266 } 267 } 268 269 /** 270 * The values in validity table are indexed by the lower bits of Unicode 271 * range 0x0900 - 0x09ff. The values have a structure like: 272 * --------------------------------------------------------------- 273 * | DEV | PNJ | GJR | ORI | BNG | TLG | MLM | TML | 274 * | | | | | ASM | KND | | | 275 * --------------------------------------------------------------- 276 * If a code point is valid in a particular script 277 * then that bit is turned on 278 * 279 * Unicode does not distinguish between Bengali and Assamese so we use 1 bit for 280 * to represent these languages 281 * 282 * Telugu and Kannada have same codepoints except for Vocallic_RR which we special case 283 * and combine and use 1 bit to represent these languages. 284 * 285 * TODO: It is probably easier to understand and maintain to change this 286 * to use uint16_t and give each of the 9 Unicode/script blocks its own bit. 287 */ 288 289 static const uint8_t validityTable[128] = { 290 /* This state table is tool generated please do not edit unless you know exactly what you are doing */ 291 /* Note: This table was edited to mirror the Windows XP implementation */ 292 /*ISCII:Valid:Unicode */ 293 /*0xa0 : 0x00: 0x900 */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 294 /*0xa1 : 0xb8: 0x901 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO , 295 /*0xa2 : 0xfe: 0x902 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 296 /*0xa3 : 0xbf: 0x903 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 297 /*0x00 : 0x00: 0x904 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 298 /*0xa4 : 0xff: 0x905 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 299 /*0xa5 : 0xff: 0x906 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 300 /*0xa6 : 0xff: 0x907 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 301 /*0xa7 : 0xff: 0x908 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 302 /*0xa8 : 0xff: 0x909 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 303 /*0xa9 : 0xff: 0x90a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 304 /*0xaa : 0xfe: 0x90b */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 305 /*0x00 : 0x00: 0x90c */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 306 /*0xae : 0x80: 0x90d */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO , 307 /*0xab : 0x87: 0x90e */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK , 308 /*0xac : 0xff: 0x90f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 309 /*0xad : 0xff: 0x910 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 310 /*0xb2 : 0x80: 0x911 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO , 311 /*0xaf : 0x87: 0x912 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK , 312 /*0xb0 : 0xff: 0x913 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 313 /*0xb1 : 0xff: 0x914 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 314 /*0xb3 : 0xff: 0x915 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 315 /*0xb4 : 0xfe: 0x916 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 316 /*0xb5 : 0xfe: 0x917 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 317 /*0xb6 : 0xfe: 0x918 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 318 /*0xb7 : 0xff: 0x919 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 319 /*0xb8 : 0xff: 0x91a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 320 /*0xb9 : 0xfe: 0x91b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 321 /*0xba : 0xff: 0x91c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 322 /*0xbb : 0xfe: 0x91d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 323 /*0xbc : 0xff: 0x91e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 324 /*0xbd : 0xff: 0x91f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 325 /*0xbe : 0xfe: 0x920 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 326 /*0xbf : 0xfe: 0x921 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 327 /*0xc0 : 0xfe: 0x922 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 328 /*0xc1 : 0xff: 0x923 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 329 /*0xc2 : 0xff: 0x924 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 330 /*0xc3 : 0xfe: 0x925 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 331 /*0xc4 : 0xfe: 0x926 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 332 /*0xc5 : 0xfe: 0x927 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 333 /*0xc6 : 0xff: 0x928 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 334 /*0xc7 : 0x81: 0x929 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + TML_MASK , 335 /*0xc8 : 0xff: 0x92a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 336 /*0xc9 : 0xfe: 0x92b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 337 /*0xca : 0xfe: 0x92c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 338 /*0xcb : 0xfe: 0x92d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 339 /*0xcc : 0xfe: 0x92e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 340 /*0xcd : 0xff: 0x92f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 341 /*0xcf : 0xff: 0x930 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 342 /*0xd0 : 0x87: 0x931 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + MLM_MASK + TML_MASK , 343 /*0xd1 : 0xff: 0x932 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 344 /*0xd2 : 0xb7: 0x933 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + ZERO + KND_MASK + MLM_MASK + TML_MASK , 345 /*0xd3 : 0x83: 0x934 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + MLM_MASK + TML_MASK , 346 /*0xd4 : 0xff: 0x935 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + ZERO + KND_MASK + MLM_MASK + TML_MASK , 347 /*0xd5 : 0xfe: 0x936 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 348 /*0xd6 : 0xbf: 0x937 */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 349 /*0xd7 : 0xff: 0x938 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 350 /*0xd8 : 0xff: 0x939 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 351 /*0x00 : 0x00: 0x93A */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 352 /*0x00 : 0x00: 0x93B */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 353 /*0xe9 : 0xda: 0x93c */ DEV_MASK + PNJ_MASK + ZERO + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO , 354 /*0x00 : 0x00: 0x93d */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 355 /*0xda : 0xff: 0x93e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 356 /*0xdb : 0xff: 0x93f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 357 /*0xdc : 0xff: 0x940 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 358 /*0xdd : 0xff: 0x941 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 359 /*0xde : 0xff: 0x942 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 360 /*0xdf : 0xbe: 0x943 */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 361 /*0x00 : 0x00: 0x944 */ DEV_MASK + ZERO + GJR_MASK + ZERO + BNG_MASK + KND_MASK + ZERO + ZERO , 362 /*0xe3 : 0x80: 0x945 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO , 363 /*0xe0 : 0x87: 0x946 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK , 364 /*0xe1 : 0xff: 0x947 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 365 /*0xe2 : 0xff: 0x948 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 366 /*0xe7 : 0x80: 0x949 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO , 367 /*0xe4 : 0x87: 0x94a */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK , 368 /*0xe5 : 0xff: 0x94b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 369 /*0xe6 : 0xff: 0x94c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 370 /*0xe8 : 0xff: 0x94d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 371 /*0xec : 0x00: 0x94e */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 372 /*0xed : 0x00: 0x94f */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 373 /*0x00 : 0x00: 0x950 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO , 374 /*0x00 : 0x00: 0x951 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 375 /*0x00 : 0x00: 0x952 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 376 /*0x00 : 0x00: 0x953 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 377 /*0x00 : 0x00: 0x954 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 378 /*0x00 : 0x00: 0x955 */ ZERO + ZERO + ZERO + ZERO + ZERO + KND_MASK + ZERO + ZERO , 379 /*0x00 : 0x00: 0x956 */ ZERO + ZERO + ZERO + ORI_MASK + ZERO + KND_MASK + ZERO + ZERO , 380 /*0x00 : 0x00: 0x957 */ ZERO + ZERO + ZERO + ORI_MASK + BNG_MASK + ZERO + MLM_MASK + ZERO , 381 /*0x00 : 0x00: 0x958 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 382 /*0x00 : 0x00: 0x959 */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 383 /*0x00 : 0x00: 0x95a */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 384 /*0x00 : 0x00: 0x95b */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 385 /*0x00 : 0x00: 0x95c */ DEV_MASK + PNJ_MASK + ZERO + ZERO + BNG_MASK + ZERO + ZERO + ZERO , 386 /*0x00 : 0x00: 0x95d */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO , 387 /*0x00 : 0x00: 0x95e */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 388 /*0xce : 0x98: 0x95f */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO , 389 /*0x00 : 0x00: 0x960 */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 390 /*0x00 : 0x00: 0x961 */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 391 /*0x00 : 0x00: 0x962 */ DEV_MASK + ZERO + ZERO + ZERO + BNG_MASK + ZERO + ZERO + ZERO , 392 /*0x00 : 0x00: 0x963 */ DEV_MASK + ZERO + ZERO + ZERO + BNG_MASK + ZERO + ZERO + ZERO , 393 /*0xea : 0xf8: 0x964 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 394 /*0xeaea : 0x00: 0x965*/ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 395 /*0xf1 : 0xff: 0x966 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 396 /*0xf2 : 0xff: 0x967 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 397 /*0xf3 : 0xff: 0x968 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 398 /*0xf4 : 0xff: 0x969 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 399 /*0xf5 : 0xff: 0x96a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 400 /*0xf6 : 0xff: 0x96b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 401 /*0xf7 : 0xff: 0x96c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 402 /*0xf8 : 0xff: 0x96d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 403 /*0xf9 : 0xff: 0x96e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 404 /*0xfa : 0xff: 0x96f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 405 /*0x00 : 0x80: 0x970 */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 406 /* 407 * The length of the array is 128 to provide values for 0x900..0x97f. 408 * The last 15 entries for 0x971..0x97f of the validity table are all zero 409 * because no Indic script uses such Unicode code points. 410 */ 411 /*0x00 : 0x00: 0x9yz */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO 412 }; 413 414 static const uint16_t fromUnicodeTable[128]={ 415 0x00a0 ,/* 0x0900 */ 416 0x00a1 ,/* 0x0901 */ 417 0x00a2 ,/* 0x0902 */ 418 0x00a3 ,/* 0x0903 */ 419 0xa4e0 ,/* 0x0904 */ 420 0x00a4 ,/* 0x0905 */ 421 0x00a5 ,/* 0x0906 */ 422 0x00a6 ,/* 0x0907 */ 423 0x00a7 ,/* 0x0908 */ 424 0x00a8 ,/* 0x0909 */ 425 0x00a9 ,/* 0x090a */ 426 0x00aa ,/* 0x090b */ 427 0xA6E9 ,/* 0x090c */ 428 0x00ae ,/* 0x090d */ 429 0x00ab ,/* 0x090e */ 430 0x00ac ,/* 0x090f */ 431 0x00ad ,/* 0x0910 */ 432 0x00b2 ,/* 0x0911 */ 433 0x00af ,/* 0x0912 */ 434 0x00b0 ,/* 0x0913 */ 435 0x00b1 ,/* 0x0914 */ 436 0x00b3 ,/* 0x0915 */ 437 0x00b4 ,/* 0x0916 */ 438 0x00b5 ,/* 0x0917 */ 439 0x00b6 ,/* 0x0918 */ 440 0x00b7 ,/* 0x0919 */ 441 0x00b8 ,/* 0x091a */ 442 0x00b9 ,/* 0x091b */ 443 0x00ba ,/* 0x091c */ 444 0x00bb ,/* 0x091d */ 445 0x00bc ,/* 0x091e */ 446 0x00bd ,/* 0x091f */ 447 0x00be ,/* 0x0920 */ 448 0x00bf ,/* 0x0921 */ 449 0x00c0 ,/* 0x0922 */ 450 0x00c1 ,/* 0x0923 */ 451 0x00c2 ,/* 0x0924 */ 452 0x00c3 ,/* 0x0925 */ 453 0x00c4 ,/* 0x0926 */ 454 0x00c5 ,/* 0x0927 */ 455 0x00c6 ,/* 0x0928 */ 456 0x00c7 ,/* 0x0929 */ 457 0x00c8 ,/* 0x092a */ 458 0x00c9 ,/* 0x092b */ 459 0x00ca ,/* 0x092c */ 460 0x00cb ,/* 0x092d */ 461 0x00cc ,/* 0x092e */ 462 0x00cd ,/* 0x092f */ 463 0x00cf ,/* 0x0930 */ 464 0x00d0 ,/* 0x0931 */ 465 0x00d1 ,/* 0x0932 */ 466 0x00d2 ,/* 0x0933 */ 467 0x00d3 ,/* 0x0934 */ 468 0x00d4 ,/* 0x0935 */ 469 0x00d5 ,/* 0x0936 */ 470 0x00d6 ,/* 0x0937 */ 471 0x00d7 ,/* 0x0938 */ 472 0x00d8 ,/* 0x0939 */ 473 0xFFFF ,/* 0x093A */ 474 0xFFFF ,/* 0x093B */ 475 0x00e9 ,/* 0x093c */ 476 0xEAE9 ,/* 0x093d */ 477 0x00da ,/* 0x093e */ 478 0x00db ,/* 0x093f */ 479 0x00dc ,/* 0x0940 */ 480 0x00dd ,/* 0x0941 */ 481 0x00de ,/* 0x0942 */ 482 0x00df ,/* 0x0943 */ 483 0xDFE9 ,/* 0x0944 */ 484 0x00e3 ,/* 0x0945 */ 485 0x00e0 ,/* 0x0946 */ 486 0x00e1 ,/* 0x0947 */ 487 0x00e2 ,/* 0x0948 */ 488 0x00e7 ,/* 0x0949 */ 489 0x00e4 ,/* 0x094a */ 490 0x00e5 ,/* 0x094b */ 491 0x00e6 ,/* 0x094c */ 492 0x00e8 ,/* 0x094d */ 493 0x00ec ,/* 0x094e */ 494 0x00ed ,/* 0x094f */ 495 0xA1E9 ,/* 0x0950 */ /* OM Symbol */ 496 0xFFFF ,/* 0x0951 */ 497 0xF0B8 ,/* 0x0952 */ 498 0xFFFF ,/* 0x0953 */ 499 0xFFFF ,/* 0x0954 */ 500 0xFFFF ,/* 0x0955 */ 501 0xFFFF ,/* 0x0956 */ 502 0xFFFF ,/* 0x0957 */ 503 0xb3e9 ,/* 0x0958 */ 504 0xb4e9 ,/* 0x0959 */ 505 0xb5e9 ,/* 0x095a */ 506 0xbae9 ,/* 0x095b */ 507 0xbfe9 ,/* 0x095c */ 508 0xC0E9 ,/* 0x095d */ 509 0xc9e9 ,/* 0x095e */ 510 0x00ce ,/* 0x095f */ 511 0xAAe9 ,/* 0x0960 */ 512 0xA7E9 ,/* 0x0961 */ 513 0xDBE9 ,/* 0x0962 */ 514 0xDCE9 ,/* 0x0963 */ 515 0x00ea ,/* 0x0964 */ 516 0xeaea ,/* 0x0965 */ 517 0x00f1 ,/* 0x0966 */ 518 0x00f2 ,/* 0x0967 */ 519 0x00f3 ,/* 0x0968 */ 520 0x00f4 ,/* 0x0969 */ 521 0x00f5 ,/* 0x096a */ 522 0x00f6 ,/* 0x096b */ 523 0x00f7 ,/* 0x096c */ 524 0x00f8 ,/* 0x096d */ 525 0x00f9 ,/* 0x096e */ 526 0x00fa ,/* 0x096f */ 527 0xF0BF ,/* 0x0970 */ 528 0xFFFF ,/* 0x0971 */ 529 0xFFFF ,/* 0x0972 */ 530 0xFFFF ,/* 0x0973 */ 531 0xFFFF ,/* 0x0974 */ 532 0xFFFF ,/* 0x0975 */ 533 0xFFFF ,/* 0x0976 */ 534 0xFFFF ,/* 0x0977 */ 535 0xFFFF ,/* 0x0978 */ 536 0xFFFF ,/* 0x0979 */ 537 0xFFFF ,/* 0x097a */ 538 0xFFFF ,/* 0x097b */ 539 0xFFFF ,/* 0x097c */ 540 0xFFFF ,/* 0x097d */ 541 0xFFFF ,/* 0x097e */ 542 0xFFFF ,/* 0x097f */ 543 }; 544 static const uint16_t toUnicodeTable[256]={ 545 0x0000,/* 0x00 */ 546 0x0001,/* 0x01 */ 547 0x0002,/* 0x02 */ 548 0x0003,/* 0x03 */ 549 0x0004,/* 0x04 */ 550 0x0005,/* 0x05 */ 551 0x0006,/* 0x06 */ 552 0x0007,/* 0x07 */ 553 0x0008,/* 0x08 */ 554 0x0009,/* 0x09 */ 555 0x000a,/* 0x0a */ 556 0x000b,/* 0x0b */ 557 0x000c,/* 0x0c */ 558 0x000d,/* 0x0d */ 559 0x000e,/* 0x0e */ 560 0x000f,/* 0x0f */ 561 0x0010,/* 0x10 */ 562 0x0011,/* 0x11 */ 563 0x0012,/* 0x12 */ 564 0x0013,/* 0x13 */ 565 0x0014,/* 0x14 */ 566 0x0015,/* 0x15 */ 567 0x0016,/* 0x16 */ 568 0x0017,/* 0x17 */ 569 0x0018,/* 0x18 */ 570 0x0019,/* 0x19 */ 571 0x001a,/* 0x1a */ 572 0x001b,/* 0x1b */ 573 0x001c,/* 0x1c */ 574 0x001d,/* 0x1d */ 575 0x001e,/* 0x1e */ 576 0x001f,/* 0x1f */ 577 0x0020,/* 0x20 */ 578 0x0021,/* 0x21 */ 579 0x0022,/* 0x22 */ 580 0x0023,/* 0x23 */ 581 0x0024,/* 0x24 */ 582 0x0025,/* 0x25 */ 583 0x0026,/* 0x26 */ 584 0x0027,/* 0x27 */ 585 0x0028,/* 0x28 */ 586 0x0029,/* 0x29 */ 587 0x002a,/* 0x2a */ 588 0x002b,/* 0x2b */ 589 0x002c,/* 0x2c */ 590 0x002d,/* 0x2d */ 591 0x002e,/* 0x2e */ 592 0x002f,/* 0x2f */ 593 0x0030,/* 0x30 */ 594 0x0031,/* 0x31 */ 595 0x0032,/* 0x32 */ 596 0x0033,/* 0x33 */ 597 0x0034,/* 0x34 */ 598 0x0035,/* 0x35 */ 599 0x0036,/* 0x36 */ 600 0x0037,/* 0x37 */ 601 0x0038,/* 0x38 */ 602 0x0039,/* 0x39 */ 603 0x003A,/* 0x3A */ 604 0x003B,/* 0x3B */ 605 0x003c,/* 0x3c */ 606 0x003d,/* 0x3d */ 607 0x003e,/* 0x3e */ 608 0x003f,/* 0x3f */ 609 0x0040,/* 0x40 */ 610 0x0041,/* 0x41 */ 611 0x0042,/* 0x42 */ 612 0x0043,/* 0x43 */ 613 0x0044,/* 0x44 */ 614 0x0045,/* 0x45 */ 615 0x0046,/* 0x46 */ 616 0x0047,/* 0x47 */ 617 0x0048,/* 0x48 */ 618 0x0049,/* 0x49 */ 619 0x004a,/* 0x4a */ 620 0x004b,/* 0x4b */ 621 0x004c,/* 0x4c */ 622 0x004d,/* 0x4d */ 623 0x004e,/* 0x4e */ 624 0x004f,/* 0x4f */ 625 0x0050,/* 0x50 */ 626 0x0051,/* 0x51 */ 627 0x0052,/* 0x52 */ 628 0x0053,/* 0x53 */ 629 0x0054,/* 0x54 */ 630 0x0055,/* 0x55 */ 631 0x0056,/* 0x56 */ 632 0x0057,/* 0x57 */ 633 0x0058,/* 0x58 */ 634 0x0059,/* 0x59 */ 635 0x005a,/* 0x5a */ 636 0x005b,/* 0x5b */ 637 0x005c,/* 0x5c */ 638 0x005d,/* 0x5d */ 639 0x005e,/* 0x5e */ 640 0x005f,/* 0x5f */ 641 0x0060,/* 0x60 */ 642 0x0061,/* 0x61 */ 643 0x0062,/* 0x62 */ 644 0x0063,/* 0x63 */ 645 0x0064,/* 0x64 */ 646 0x0065,/* 0x65 */ 647 0x0066,/* 0x66 */ 648 0x0067,/* 0x67 */ 649 0x0068,/* 0x68 */ 650 0x0069,/* 0x69 */ 651 0x006a,/* 0x6a */ 652 0x006b,/* 0x6b */ 653 0x006c,/* 0x6c */ 654 0x006d,/* 0x6d */ 655 0x006e,/* 0x6e */ 656 0x006f,/* 0x6f */ 657 0x0070,/* 0x70 */ 658 0x0071,/* 0x71 */ 659 0x0072,/* 0x72 */ 660 0x0073,/* 0x73 */ 661 0x0074,/* 0x74 */ 662 0x0075,/* 0x75 */ 663 0x0076,/* 0x76 */ 664 0x0077,/* 0x77 */ 665 0x0078,/* 0x78 */ 666 0x0079,/* 0x79 */ 667 0x007a,/* 0x7a */ 668 0x007b,/* 0x7b */ 669 0x007c,/* 0x7c */ 670 0x007d,/* 0x7d */ 671 0x007e,/* 0x7e */ 672 0x007f,/* 0x7f */ 673 0x0080,/* 0x80 */ 674 0x0081,/* 0x81 */ 675 0x0082,/* 0x82 */ 676 0x0083,/* 0x83 */ 677 0x0084,/* 0x84 */ 678 0x0085,/* 0x85 */ 679 0x0086,/* 0x86 */ 680 0x0087,/* 0x87 */ 681 0x0088,/* 0x88 */ 682 0x0089,/* 0x89 */ 683 0x008a,/* 0x8a */ 684 0x008b,/* 0x8b */ 685 0x008c,/* 0x8c */ 686 0x008d,/* 0x8d */ 687 0x008e,/* 0x8e */ 688 0x008f,/* 0x8f */ 689 0x0090,/* 0x90 */ 690 0x0091,/* 0x91 */ 691 0x0092,/* 0x92 */ 692 0x0093,/* 0x93 */ 693 0x0094,/* 0x94 */ 694 0x0095,/* 0x95 */ 695 0x0096,/* 0x96 */ 696 0x0097,/* 0x97 */ 697 0x0098,/* 0x98 */ 698 0x0099,/* 0x99 */ 699 0x009a,/* 0x9a */ 700 0x009b,/* 0x9b */ 701 0x009c,/* 0x9c */ 702 0x009d,/* 0x9d */ 703 0x009e,/* 0x9e */ 704 0x009f,/* 0x9f */ 705 0x00A0,/* 0xa0 */ 706 0x0901,/* 0xa1 */ 707 0x0902,/* 0xa2 */ 708 0x0903,/* 0xa3 */ 709 0x0905,/* 0xa4 */ 710 0x0906,/* 0xa5 */ 711 0x0907,/* 0xa6 */ 712 0x0908,/* 0xa7 */ 713 0x0909,/* 0xa8 */ 714 0x090a,/* 0xa9 */ 715 0x090b,/* 0xaa */ 716 0x090e,/* 0xab */ 717 0x090f,/* 0xac */ 718 0x0910,/* 0xad */ 719 0x090d,/* 0xae */ 720 0x0912,/* 0xaf */ 721 0x0913,/* 0xb0 */ 722 0x0914,/* 0xb1 */ 723 0x0911,/* 0xb2 */ 724 0x0915,/* 0xb3 */ 725 0x0916,/* 0xb4 */ 726 0x0917,/* 0xb5 */ 727 0x0918,/* 0xb6 */ 728 0x0919,/* 0xb7 */ 729 0x091a,/* 0xb8 */ 730 0x091b,/* 0xb9 */ 731 0x091c,/* 0xba */ 732 0x091d,/* 0xbb */ 733 0x091e,/* 0xbc */ 734 0x091f,/* 0xbd */ 735 0x0920,/* 0xbe */ 736 0x0921,/* 0xbf */ 737 0x0922,/* 0xc0 */ 738 0x0923,/* 0xc1 */ 739 0x0924,/* 0xc2 */ 740 0x0925,/* 0xc3 */ 741 0x0926,/* 0xc4 */ 742 0x0927,/* 0xc5 */ 743 0x0928,/* 0xc6 */ 744 0x0929,/* 0xc7 */ 745 0x092a,/* 0xc8 */ 746 0x092b,/* 0xc9 */ 747 0x092c,/* 0xca */ 748 0x092d,/* 0xcb */ 749 0x092e,/* 0xcc */ 750 0x092f,/* 0xcd */ 751 0x095f,/* 0xce */ 752 0x0930,/* 0xcf */ 753 0x0931,/* 0xd0 */ 754 0x0932,/* 0xd1 */ 755 0x0933,/* 0xd2 */ 756 0x0934,/* 0xd3 */ 757 0x0935,/* 0xd4 */ 758 0x0936,/* 0xd5 */ 759 0x0937,/* 0xd6 */ 760 0x0938,/* 0xd7 */ 761 0x0939,/* 0xd8 */ 762 0x200D,/* 0xd9 */ 763 0x093e,/* 0xda */ 764 0x093f,/* 0xdb */ 765 0x0940,/* 0xdc */ 766 0x0941,/* 0xdd */ 767 0x0942,/* 0xde */ 768 0x0943,/* 0xdf */ 769 0x0946,/* 0xe0 */ 770 0x0947,/* 0xe1 */ 771 0x0948,/* 0xe2 */ 772 0x0945,/* 0xe3 */ 773 0x094a,/* 0xe4 */ 774 0x094b,/* 0xe5 */ 775 0x094c,/* 0xe6 */ 776 0x0949,/* 0xe7 */ 777 0x094d,/* 0xe8 */ 778 0x093c,/* 0xe9 */ 779 0x0964,/* 0xea */ 780 0xFFFF,/* 0xeb */ 781 0xFFFF,/* 0xec */ 782 0xFFFF,/* 0xed */ 783 0xFFFF,/* 0xee */ 784 0xFFFF,/* 0xef */ 785 0xFFFF,/* 0xf0 */ 786 0x0966,/* 0xf1 */ 787 0x0967,/* 0xf2 */ 788 0x0968,/* 0xf3 */ 789 0x0969,/* 0xf4 */ 790 0x096a,/* 0xf5 */ 791 0x096b,/* 0xf6 */ 792 0x096c,/* 0xf7 */ 793 0x096d,/* 0xf8 */ 794 0x096e,/* 0xf9 */ 795 0x096f,/* 0xfa */ 796 0xFFFF,/* 0xfb */ 797 0xFFFF,/* 0xfc */ 798 0xFFFF,/* 0xfd */ 799 0xFFFF,/* 0xfe */ 800 0xFFFF /* 0xff */ 801 }; 802 803 static const uint16_t vowelSignESpecialCases[][2]={ 804 { 2 /*length of array*/ , 0 }, 805 { 0xA4 , 0x0904 }, 806 }; 807 808 static const uint16_t nuktaSpecialCases[][2]={ 809 { 16 /*length of array*/ , 0 }, 810 { 0xA6 , 0x090c }, 811 { 0xEA , 0x093D }, 812 { 0xDF , 0x0944 }, 813 { 0xA1 , 0x0950 }, 814 { 0xb3 , 0x0958 }, 815 { 0xb4 , 0x0959 }, 816 { 0xb5 , 0x095a }, 817 { 0xba , 0x095b }, 818 { 0xbf , 0x095c }, 819 { 0xC0 , 0x095d }, 820 { 0xc9 , 0x095e }, 821 { 0xAA , 0x0960 }, 822 { 0xA7 , 0x0961 }, 823 { 0xDB , 0x0962 }, 824 { 0xDC , 0x0963 }, 825 }; 826 827 828 #define WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,targetByteUnit,err){ \ 829 int32_t offset = (int32_t)(source - args->source-1); \ 830 /* write the targetUniChar to target */ \ 831 if(target < targetLimit){ \ 832 if(targetByteUnit <= 0xFF){ \ 833 *(target)++ = (uint8_t)(targetByteUnit); \ 834 if(offsets){ \ 835 *(offsets++) = offset; \ 836 } \ 837 }else{ \ 838 if (targetByteUnit > 0xFFFF) { \ 839 *(target)++ = (uint8_t)(targetByteUnit>>16); \ 840 if (offsets) { \ 841 --offset; \ 842 *(offsets++) = offset; \ 843 } \ 844 } \ 845 if (!(target < targetLimit)) { \ 846 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \ 847 (uint8_t)(targetByteUnit >> 8); \ 848 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \ 849 (uint8_t)targetByteUnit; \ 850 *err = U_BUFFER_OVERFLOW_ERROR; \ 851 } else { \ 852 *(target)++ = (uint8_t)(targetByteUnit>>8); \ 853 if(offsets){ \ 854 *(offsets++) = offset; \ 855 } \ 856 if(target < targetLimit){ \ 857 *(target)++ = (uint8_t) targetByteUnit; \ 858 if(offsets){ \ 859 *(offsets++) = offset ; \ 860 } \ 861 }else{ \ 862 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] =\ 863 (uint8_t) (targetByteUnit); \ 864 *err = U_BUFFER_OVERFLOW_ERROR; \ 865 } \ 866 } \ 867 } \ 868 }else{ \ 869 if (targetByteUnit & 0xFF0000) { \ 870 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \ 871 (uint8_t) (targetByteUnit >>16); \ 872 } \ 873 if(targetByteUnit & 0xFF00){ \ 874 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \ 875 (uint8_t) (targetByteUnit >>8); \ 876 } \ 877 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \ 878 (uint8_t) (targetByteUnit); \ 879 *err = U_BUFFER_OVERFLOW_ERROR; \ 880 } \ 881 } 882 883 /* Rules: 884 * Explicit Halant : 885 * <HALANT> + <ZWNJ> 886 * Soft Halant : 887 * <HALANT> + <ZWJ> 888 */ 889 890 static void UConverter_fromUnicode_ISCII_OFFSETS_LOGIC( 891 UConverterFromUnicodeArgs * args, UErrorCode * err) { 892 const UChar *source = args->source; 893 const UChar *sourceLimit = args->sourceLimit; 894 unsigned char *target = (unsigned char *) args->target; 895 unsigned char *targetLimit = (unsigned char *) args->targetLimit; 896 int32_t* offsets = args->offsets; 897 uint32_t targetByteUnit = 0x0000; 898 UChar32 sourceChar = 0x0000; 899 UChar32 tempContextFromUnicode = 0x0000; /* For special handling of the Gurmukhi script. */ 900 UConverterDataISCII *converterData; 901 uint16_t newDelta=0; 902 uint16_t range = 0; 903 UBool deltaChanged = FALSE; 904 905 if ((args->converter == NULL) || (args->targetLimit < args->target) || (args->sourceLimit < args->source)) { 906 *err = U_ILLEGAL_ARGUMENT_ERROR; 907 return; 908 } 909 /* initialize data */ 910 converterData=(UConverterDataISCII*)args->converter->extraInfo; 911 newDelta=converterData->currentDeltaFromUnicode; 912 range = (uint16_t)(newDelta/DELTA); 913 914 if ((sourceChar = args->converter->fromUChar32)!=0) { 915 goto getTrail; 916 } 917 918 /*writing the char to the output stream */ 919 while (source < sourceLimit) { 920 /* Write the language code following LF only if LF is not the last character. */ 921 if (args->converter->fromUnicodeStatus == LF) { 922 targetByteUnit = ATR<<8; 923 targetByteUnit += (uint8_t) lookupInitialData[range].isciiLang; 924 args->converter->fromUnicodeStatus = 0x0000; 925 /* now append ATR and language code */ 926 WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,targetByteUnit,err); 927 if (U_FAILURE(*err)) { 928 break; 929 } 930 } 931 932 sourceChar = *source++; 933 tempContextFromUnicode = converterData->contextCharFromUnicode; 934 935 targetByteUnit = missingCharMarker; 936 937 /*check if input is in ASCII and C0 control codes range*/ 938 if (sourceChar <= ASCII_END) { 939 args->converter->fromUnicodeStatus = sourceChar; 940 WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,sourceChar,err); 941 if (U_FAILURE(*err)) { 942 break; 943 } 944 continue; 945 } 946 switch (sourceChar) { 947 case ZWNJ: 948 /* contextChar has HALANT */ 949 if (converterData->contextCharFromUnicode) { 950 converterData->contextCharFromUnicode = 0x00; 951 targetByteUnit = ISCII_HALANT; 952 } else { 953 /* consume ZWNJ and continue */ 954 converterData->contextCharFromUnicode = 0x00; 955 continue; 956 } 957 break; 958 case ZWJ: 959 /* contextChar has HALANT */ 960 if (converterData->contextCharFromUnicode) { 961 targetByteUnit = ISCII_NUKTA; 962 } else { 963 targetByteUnit =ISCII_INV; 964 } 965 converterData->contextCharFromUnicode = 0x00; 966 break; 967 default: 968 /* is the sourceChar in the INDIC_RANGE? */ 969 if ((uint16_t)(INDIC_BLOCK_END-sourceChar) <= INDIC_RANGE) { 970 /* Danda and Double Danda are valid in Northern scripts.. since Unicode 971 * does not include these codepoints in all Northern scrips we need to 972 * filter them out 973 */ 974 if (sourceChar!= DANDA && sourceChar != DOUBLE_DANDA) { 975 /* find out to which block the souceChar belongs*/ 976 range =(uint16_t)((sourceChar-INDIC_BLOCK_BEGIN)/DELTA); 977 newDelta =(uint16_t)(range*DELTA); 978 979 /* Now are we in the same block as the previous? */ 980 if (newDelta!= converterData->currentDeltaFromUnicode || converterData->isFirstBuffer) { 981 converterData->currentDeltaFromUnicode = newDelta; 982 converterData->currentMaskFromUnicode = lookupInitialData[range].maskEnum; 983 deltaChanged =TRUE; 984 converterData->isFirstBuffer=FALSE; 985 } 986 987 if (converterData->currentDeltaFromUnicode == PNJ_DELTA) { 988 if (sourceChar == PNJ_TIPPI) { 989 /* Make sure Tippi is converterd to Bindi. */ 990 sourceChar = PNJ_BINDI; 991 } else if (sourceChar == PNJ_ADHAK) { 992 /* This is for consonant cluster handling. */ 993 converterData->contextCharFromUnicode = PNJ_ADHAK; 994 } 995 996 } 997 /* Normalize all Indic codepoints to Devanagari and map them to ISCII */ 998 /* now subtract the new delta from sourceChar*/ 999 sourceChar -= converterData->currentDeltaFromUnicode; 1000 } 1001 1002 /* get the target byte unit */ 1003 targetByteUnit=fromUnicodeTable[(uint8_t)sourceChar]; 1004 1005 /* is the code point valid in current script? */ 1006 if ((validityTable[(uint8_t)sourceChar] & converterData->currentMaskFromUnicode)==0) { 1007 /* Vocallic RR is assigned in ISCII Telugu and Unicode */ 1008 if (converterData->currentDeltaFromUnicode!=(TELUGU_DELTA) || sourceChar!=VOCALLIC_RR) { 1009 targetByteUnit=missingCharMarker; 1010 } 1011 } 1012 1013 if (deltaChanged) { 1014 /* we are in a script block which is different than 1015 * previous sourceChar's script block write ATR and language codes 1016 */ 1017 uint32_t temp=0; 1018 temp =(uint16_t)(ATR<<8); 1019 temp += (uint16_t)((uint8_t) lookupInitialData[range].isciiLang); 1020 /* reset */ 1021 deltaChanged=FALSE; 1022 /* now append ATR and language code */ 1023 WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,temp,err); 1024 if (U_FAILURE(*err)) { 1025 break; 1026 } 1027 } 1028 1029 if (converterData->currentDeltaFromUnicode == PNJ_DELTA && (sourceChar + PNJ_DELTA) == PNJ_ADHAK) { 1030 continue; 1031 } 1032 } 1033 /* reset context char */ 1034 converterData->contextCharFromUnicode = 0x00; 1035 break; 1036 } 1037 if (converterData->currentDeltaFromUnicode == PNJ_DELTA && tempContextFromUnicode == PNJ_ADHAK && isPNJConsonant((sourceChar + PNJ_DELTA))) { 1038 /* If the previous codepoint is Adhak and the current codepoint is a consonant, the targetByteUnit should be C + Halant + C. */ 1039 /* reset context char */ 1040 converterData->contextCharFromUnicode = 0x0000; 1041 targetByteUnit = targetByteUnit << 16 | ISCII_HALANT << 8 | targetByteUnit; 1042 /* write targetByteUnit to target */ 1043 WRITE_TO_TARGET_FROM_U(args, offsets, source, target, targetLimit, targetByteUnit,err); 1044 if (U_FAILURE(*err)) { 1045 break; 1046 } 1047 } else if (targetByteUnit != missingCharMarker) { 1048 if (targetByteUnit==ISCII_HALANT) { 1049 converterData->contextCharFromUnicode = (UChar)targetByteUnit; 1050 } 1051 /* write targetByteUnit to target*/ 1052 WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,targetByteUnit,err); 1053 if (U_FAILURE(*err)) { 1054 break; 1055 } 1056 } else { 1057 /* oops.. the code point is unassigned */ 1058 /*check if the char is a First surrogate*/ 1059 if (U16_IS_SURROGATE(sourceChar)) { 1060 if (U16_IS_SURROGATE_LEAD(sourceChar)) { 1061 getTrail: 1062 /*look ahead to find the trail surrogate*/ 1063 if (source < sourceLimit) { 1064 /* test the following code unit */ 1065 UChar trail= (*source); 1066 if (U16_IS_TRAIL(trail)) { 1067 source++; 1068 sourceChar=U16_GET_SUPPLEMENTARY(sourceChar, trail); 1069 *err =U_INVALID_CHAR_FOUND; 1070 /* convert this surrogate code point */ 1071 /* exit this condition tree */ 1072 } else { 1073 /* this is an unmatched lead code unit (1st surrogate) */ 1074 /* callback(illegal) */ 1075 *err=U_ILLEGAL_CHAR_FOUND; 1076 } 1077 } else { 1078 /* no more input */ 1079 *err = U_ZERO_ERROR; 1080 } 1081 } else { 1082 /* this is an unmatched trail code unit (2nd surrogate) */ 1083 /* callback(illegal) */ 1084 *err=U_ILLEGAL_CHAR_FOUND; 1085 } 1086 } else { 1087 /* callback(unassigned) for a BMP code point */ 1088 *err = U_INVALID_CHAR_FOUND; 1089 } 1090 1091 args->converter->fromUChar32=sourceChar; 1092 break; 1093 } 1094 }/* end while(mySourceIndex<mySourceLength) */ 1095 1096 /*save the state and return */ 1097 args->source = source; 1098 args->target = (char*)target; 1099 } 1100 1101 static const uint16_t lookupTable[][2]={ 1102 { ZERO, ZERO }, /*DEFALT*/ 1103 { ZERO, ZERO }, /*ROMAN*/ 1104 { DEVANAGARI, DEV_MASK }, 1105 { BENGALI, BNG_MASK }, 1106 { TAMIL, TML_MASK }, 1107 { TELUGU, KND_MASK }, 1108 { BENGALI, BNG_MASK }, 1109 { ORIYA, ORI_MASK }, 1110 { KANNADA, KND_MASK }, 1111 { MALAYALAM, MLM_MASK }, 1112 { GUJARATI, GJR_MASK }, 1113 { GURMUKHI, PNJ_MASK } 1114 }; 1115 1116 #define WRITE_TO_TARGET_TO_U(args,source,target,offsets,offset,targetUniChar,delta, err){\ 1117 /* add offset to current Indic Block */ \ 1118 if(targetUniChar>ASCII_END && \ 1119 targetUniChar != ZWJ && \ 1120 targetUniChar != ZWNJ && \ 1121 targetUniChar != DANDA && \ 1122 targetUniChar != DOUBLE_DANDA){ \ 1123 \ 1124 targetUniChar+=(uint16_t)(delta); \ 1125 } \ 1126 /* now write the targetUniChar */ \ 1127 if(target<args->targetLimit){ \ 1128 *(target)++ = (UChar)targetUniChar; \ 1129 if(offsets){ \ 1130 *(offsets)++ = (int32_t)(offset); \ 1131 } \ 1132 }else{ \ 1133 args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++] = \ 1134 (UChar)targetUniChar; \ 1135 *err = U_BUFFER_OVERFLOW_ERROR; \ 1136 } \ 1137 } 1138 1139 #define GET_MAPPING(sourceChar,targetUniChar,data){ \ 1140 targetUniChar = toUnicodeTable[(sourceChar)] ; \ 1141 /* is the code point valid in current script? */ \ 1142 if(sourceChar> ASCII_END && \ 1143 (validityTable[(targetUniChar & 0x7F)] & data->currentMaskToUnicode)==0){ \ 1144 /* Vocallic RR is assigne in ISCII Telugu and Unicode */ \ 1145 if(data->currentDeltaToUnicode!=(TELUGU_DELTA) || \ 1146 targetUniChar!=VOCALLIC_RR){ \ 1147 targetUniChar=missingCharMarker; \ 1148 } \ 1149 } \ 1150 } 1151 1152 /*********** 1153 * Rules for ISCII to Unicode converter 1154 * ISCII is stateful encoding. To convert ISCII bytes to Unicode, 1155 * which has both precomposed and decomposed forms characters 1156 * pre-context and post-context need to be considered. 1157 * 1158 * Post context 1159 * i) ATR : Attribute code is used to declare the font and script switching. 1160 * Currently we only switch scripts and font codes consumed without generating an error 1161 * ii) EXT : Extention code is used to declare switching to Sanskrit and for obscure, 1162 * obsolete characters 1163 * Pre context 1164 * i) Halant: if preceeded by a halant then it is a explicit halant 1165 * ii) Nukta : 1166 * a) if preceeded by a halant then it is a soft halant 1167 * b) if preceeded by specific consonants and the ligatures have pre-composed 1168 * characters in Unicode then convert to pre-composed characters 1169 * iii) Danda: If Danda is preceeded by a Danda then convert to Double Danda 1170 * 1171 */ 1172 1173 static void UConverter_toUnicode_ISCII_OFFSETS_LOGIC(UConverterToUnicodeArgs *args, UErrorCode* err) { 1174 const char *source = ( char *) args->source; 1175 UChar *target = args->target; 1176 const char *sourceLimit = args->sourceLimit; 1177 const UChar* targetLimit = args->targetLimit; 1178 uint32_t targetUniChar = 0x0000; 1179 uint8_t sourceChar = 0x0000; 1180 UConverterDataISCII* data; 1181 UChar32* toUnicodeStatus=NULL; 1182 UChar32 tempTargetUniChar = 0x0000; 1183 UChar* contextCharToUnicode= NULL; 1184 UBool found; 1185 int i; 1186 int offset = 0; 1187 1188 if ((args->converter == NULL) || (target < args->target) || (source < args->source)) { 1189 *err = U_ILLEGAL_ARGUMENT_ERROR; 1190 return; 1191 } 1192 1193 data = (UConverterDataISCII*)(args->converter->extraInfo); 1194 contextCharToUnicode = &data->contextCharToUnicode; /* contains previous ISCII codepoint visited */ 1195 toUnicodeStatus = (UChar32*)&args->converter->toUnicodeStatus;/* contains the mapping to Unicode of the above codepoint*/ 1196 1197 while (U_SUCCESS(*err) && source<sourceLimit) { 1198 1199 targetUniChar = missingCharMarker; 1200 1201 if (target < targetLimit) { 1202 sourceChar = (unsigned char)*(source)++; 1203 1204 /* look at the post-context preform special processing */ 1205 if (*contextCharToUnicode==ATR) { 1206 1207 /* If we have ATR in *contextCharToUnicode then we need to change our 1208 * state to the Indic Script specified by sourceChar 1209 */ 1210 1211 /* check if the sourceChar is supported script range*/ 1212 if ((uint8_t)(PNJ-sourceChar)<=PNJ-DEV) { 1213 data->currentDeltaToUnicode = (uint16_t)(lookupTable[sourceChar & 0x0F][0] * DELTA); 1214 data->currentMaskToUnicode = (MaskEnum)lookupTable[sourceChar & 0x0F][1]; 1215 } else if (sourceChar==DEF) { 1216 /* switch back to default */ 1217 data->currentDeltaToUnicode = data->defDeltaToUnicode; 1218 data->currentMaskToUnicode = data->defMaskToUnicode; 1219 } else { 1220 if ((sourceChar >= 0x21 && sourceChar <= 0x3F)) { 1221 /* these are display codes consume and continue */ 1222 } else { 1223 *err =U_ILLEGAL_CHAR_FOUND; 1224 /* reset */ 1225 *contextCharToUnicode=NO_CHAR_MARKER; 1226 goto CALLBACK; 1227 } 1228 } 1229 1230 /* reset */ 1231 *contextCharToUnicode=NO_CHAR_MARKER; 1232 1233 continue; 1234 1235 } else if (*contextCharToUnicode==EXT) { 1236 /* check if sourceChar is in 0xA1-0xEE range */ 1237 if ((uint8_t) (EXT_RANGE_END - sourceChar) <= (EXT_RANGE_END - EXT_RANGE_BEGIN)) { 1238 /* We currently support only Anudatta and Devanagari abbreviation sign */ 1239 if (sourceChar==0xBF || sourceChar == 0xB8) { 1240 targetUniChar = (sourceChar==0xBF) ? DEV_ABBR_SIGN : DEV_ANUDATTA; 1241 1242 /* find out if the mapping is valid in this state */ 1243 if (validityTable[(uint8_t)targetUniChar] & data->currentMaskToUnicode) { 1244 *contextCharToUnicode= NO_CHAR_MARKER; 1245 1246 /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */ 1247 if (data->prevToUnicodeStatus) { 1248 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err); 1249 data->prevToUnicodeStatus = 0x0000; 1250 } 1251 /* write to target */ 1252 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),targetUniChar,data->currentDeltaToUnicode,err); 1253 1254 continue; 1255 } 1256 } 1257 /* byte unit is unassigned */ 1258 targetUniChar = missingCharMarker; 1259 *err= U_INVALID_CHAR_FOUND; 1260 } else { 1261 /* only 0xA1 - 0xEE are legal after EXT char */ 1262 *contextCharToUnicode= NO_CHAR_MARKER; 1263 *err = U_ILLEGAL_CHAR_FOUND; 1264 } 1265 goto CALLBACK; 1266 } else if (*contextCharToUnicode==ISCII_INV) { 1267 if (sourceChar==ISCII_HALANT) { 1268 targetUniChar = 0x0020; /* replace with space accoding to Indic FAQ */ 1269 } else { 1270 targetUniChar = ZWJ; 1271 } 1272 1273 /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */ 1274 if (data->prevToUnicodeStatus) { 1275 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err); 1276 data->prevToUnicodeStatus = 0x0000; 1277 } 1278 /* write to target */ 1279 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),targetUniChar,data->currentDeltaToUnicode,err); 1280 /* reset */ 1281 *contextCharToUnicode=NO_CHAR_MARKER; 1282 } 1283 1284 /* look at the pre-context and perform special processing */ 1285 switch (sourceChar) { 1286 case ISCII_INV: 1287 case EXT: /*falls through*/ 1288 case ATR: 1289 *contextCharToUnicode = (UChar)sourceChar; 1290 1291 if (*toUnicodeStatus != missingCharMarker) { 1292 /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */ 1293 if (data->prevToUnicodeStatus) { 1294 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err); 1295 data->prevToUnicodeStatus = 0x0000; 1296 } 1297 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),*toUnicodeStatus,data->currentDeltaToUnicode,err); 1298 *toUnicodeStatus = missingCharMarker; 1299 } 1300 continue; 1301 case ISCII_DANDA: 1302 /* handle double danda*/ 1303 if (*contextCharToUnicode== ISCII_DANDA) { 1304 targetUniChar = DOUBLE_DANDA; 1305 /* clear the context */ 1306 *contextCharToUnicode = NO_CHAR_MARKER; 1307 *toUnicodeStatus = missingCharMarker; 1308 } else { 1309 GET_MAPPING(sourceChar,targetUniChar,data); 1310 *contextCharToUnicode = sourceChar; 1311 } 1312 break; 1313 case ISCII_HALANT: 1314 /* handle explicit halant */ 1315 if (*contextCharToUnicode == ISCII_HALANT) { 1316 targetUniChar = ZWNJ; 1317 /* clear the context */ 1318 *contextCharToUnicode = NO_CHAR_MARKER; 1319 } else { 1320 GET_MAPPING(sourceChar,targetUniChar,data); 1321 *contextCharToUnicode = sourceChar; 1322 } 1323 break; 1324 case 0x0A: 1325 /* fall through */ 1326 case 0x0D: 1327 data->resetToDefaultToUnicode = TRUE; 1328 GET_MAPPING(sourceChar,targetUniChar,data) 1329 ; 1330 *contextCharToUnicode = sourceChar; 1331 break; 1332 1333 case ISCII_VOWEL_SIGN_E: 1334 i=1; 1335 found=FALSE; 1336 for (; i<vowelSignESpecialCases[0][0]; i++) { 1337 U_ASSERT(i<sizeof(vowelSignESpecialCases)/sizeof(vowelSignESpecialCases[0])); 1338 if (vowelSignESpecialCases[i][0]==(uint8_t)*contextCharToUnicode) { 1339 targetUniChar=vowelSignESpecialCases[i][1]; 1340 found=TRUE; 1341 break; 1342 } 1343 } 1344 if (found) { 1345 /* find out if the mapping is valid in this state */ 1346 if (validityTable[(uint8_t)targetUniChar] & data->currentMaskToUnicode) { 1347 /*targetUniChar += data->currentDeltaToUnicode ;*/ 1348 *contextCharToUnicode= NO_CHAR_MARKER; 1349 *toUnicodeStatus = missingCharMarker; 1350 break; 1351 } 1352 } 1353 GET_MAPPING(sourceChar,targetUniChar,data); 1354 *contextCharToUnicode = sourceChar; 1355 break; 1356 1357 case ISCII_NUKTA: 1358 /* handle soft halant */ 1359 if (*contextCharToUnicode == ISCII_HALANT) { 1360 targetUniChar = ZWJ; 1361 /* clear the context */ 1362 *contextCharToUnicode = NO_CHAR_MARKER; 1363 break; 1364 } else if (data->currentDeltaToUnicode == PNJ_DELTA && data->contextCharToUnicode == 0xc0) { 1365 /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */ 1366 if (data->prevToUnicodeStatus) { 1367 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err); 1368 data->prevToUnicodeStatus = 0x0000; 1369 } 1370 /* We got here because ISCII_NUKTA was preceded by 0xc0 and we are converting Gurmukhi. 1371 * In that case we must convert (0xc0 0xe9) to (\u0a5c\u0a4d\u0a39). 1372 */ 1373 targetUniChar = PNJ_RRA; 1374 WRITE_TO_TARGET_TO_U(args, source, target, args->offsets, (source-args->source)-2, targetUniChar, 0, err); 1375 if (U_SUCCESS(*err)) { 1376 targetUniChar = PNJ_SIGN_VIRAMA; 1377 WRITE_TO_TARGET_TO_U(args, source, target, args->offsets, (source-args->source)-2, targetUniChar, 0, err); 1378 if (U_SUCCESS(*err)) { 1379 targetUniChar = PNJ_HA; 1380 WRITE_TO_TARGET_TO_U(args, source, target, args->offsets, (source-args->source)-2, targetUniChar, 0, err); 1381 } else { 1382 args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++]= PNJ_HA; 1383 } 1384 } else { 1385 args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++]= PNJ_SIGN_VIRAMA; 1386 args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++]= PNJ_HA; 1387 } 1388 *toUnicodeStatus = missingCharMarker; 1389 data->contextCharToUnicode = NO_CHAR_MARKER; 1390 continue; 1391 } else { 1392 /* try to handle <CHAR> + ISCII_NUKTA special mappings */ 1393 i=1; 1394 found =FALSE; 1395 for (; i<nuktaSpecialCases[0][0]; i++) { 1396 if (nuktaSpecialCases[i][0]==(uint8_t) 1397 *contextCharToUnicode) { 1398 targetUniChar=nuktaSpecialCases[i][1]; 1399 found =TRUE; 1400 break; 1401 } 1402 } 1403 if (found) { 1404 /* find out if the mapping is valid in this state */ 1405 if (validityTable[(uint8_t)targetUniChar] & data->currentMaskToUnicode) { 1406 /*targetUniChar += data->currentDeltaToUnicode ;*/ 1407 *contextCharToUnicode= NO_CHAR_MARKER; 1408 *toUnicodeStatus = missingCharMarker; 1409 if (data->currentDeltaToUnicode == PNJ_DELTA) { 1410 /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */ 1411 if (data->prevToUnicodeStatus) { 1412 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err); 1413 data->prevToUnicodeStatus = 0x0000; 1414 } 1415 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),targetUniChar,data->currentDeltaToUnicode,err); 1416 continue; 1417 } 1418 break; 1419 } 1420 /* else fall through to default */ 1421 } 1422 /* else fall through to default */ 1423 } 1424 default:GET_MAPPING(sourceChar,targetUniChar,data) 1425 ; 1426 *contextCharToUnicode = sourceChar; 1427 break; 1428 } 1429 1430 if (*toUnicodeStatus != missingCharMarker) { 1431 /* Check to make sure that consonant clusters are handled correct for Gurmukhi script. */ 1432 if (data->currentDeltaToUnicode == PNJ_DELTA && data->prevToUnicodeStatus != 0 && isPNJConsonant(data->prevToUnicodeStatus) && 1433 (*toUnicodeStatus + PNJ_DELTA) == PNJ_SIGN_VIRAMA && (targetUniChar + PNJ_DELTA) == data->prevToUnicodeStatus) { 1434 /* Consonant clusters C + HALANT + C should be encoded as ADHAK + C */ 1435 offset = (int)(source-args->source - 3); 1436 tempTargetUniChar = PNJ_ADHAK; /* This is necessary to avoid some compiler warnings. */ 1437 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,offset,tempTargetUniChar,0,err); 1438 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,offset,data->prevToUnicodeStatus,0,err); 1439 data->prevToUnicodeStatus = 0x0000; /* reset the previous unicode code point */ 1440 *toUnicodeStatus = missingCharMarker; 1441 continue; 1442 } else { 1443 /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */ 1444 if (data->prevToUnicodeStatus) { 1445 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err); 1446 data->prevToUnicodeStatus = 0x0000; 1447 } 1448 /* Check to make sure that Bindi and Tippi are handled correctly for Gurmukhi script. 1449 * If 0xA2 is preceded by a codepoint in the PNJ_BINDI_TIPPI_SET then the target codepoint should be Tippi instead of Bindi. 1450 */ 1451 if (data->currentDeltaToUnicode == PNJ_DELTA && (targetUniChar + PNJ_DELTA) == PNJ_BINDI && isPNJBindiTippi((*toUnicodeStatus + PNJ_DELTA))) { 1452 targetUniChar = PNJ_TIPPI - PNJ_DELTA; 1453 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),*toUnicodeStatus,PNJ_DELTA,err); 1454 } else if (data->currentDeltaToUnicode == PNJ_DELTA && (targetUniChar + PNJ_DELTA) == PNJ_SIGN_VIRAMA && isPNJConsonant((*toUnicodeStatus + PNJ_DELTA))) { 1455 /* Store the current toUnicodeStatus code point for later handling of consonant cluster in Gurmukhi. */ 1456 data->prevToUnicodeStatus = *toUnicodeStatus + PNJ_DELTA; 1457 } else { 1458 /* write the previously mapped codepoint */ 1459 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),*toUnicodeStatus,data->currentDeltaToUnicode,err); 1460 } 1461 } 1462 *toUnicodeStatus = missingCharMarker; 1463 } 1464 1465 if (targetUniChar != missingCharMarker) { 1466 /* now save the targetUniChar for delayed write */ 1467 *toUnicodeStatus = (UChar) targetUniChar; 1468 if (data->resetToDefaultToUnicode==TRUE) { 1469 data->currentDeltaToUnicode = data->defDeltaToUnicode; 1470 data->currentMaskToUnicode = data->defMaskToUnicode; 1471 data->resetToDefaultToUnicode=FALSE; 1472 } 1473 } else { 1474 1475 /* we reach here only if targetUniChar == missingCharMarker 1476 * so assign codes to reason and err 1477 */ 1478 *err = U_INVALID_CHAR_FOUND; 1479 CALLBACK: 1480 args->converter->toUBytes[0] = (uint8_t) sourceChar; 1481 args->converter->toULength = 1; 1482 break; 1483 } 1484 1485 } else { 1486 *err =U_BUFFER_OVERFLOW_ERROR; 1487 break; 1488 } 1489 } 1490 1491 if (U_SUCCESS(*err) && args->flush && source == sourceLimit) { 1492 /* end of the input stream */ 1493 UConverter *cnv = args->converter; 1494 1495 if (*contextCharToUnicode==ATR || *contextCharToUnicode==EXT || *contextCharToUnicode==ISCII_INV) { 1496 /* set toUBytes[] */ 1497 cnv->toUBytes[0] = (uint8_t)*contextCharToUnicode; 1498 cnv->toULength = 1; 1499 1500 /* avoid looping on truncated sequences */ 1501 *contextCharToUnicode = NO_CHAR_MARKER; 1502 } else { 1503 cnv->toULength = 0; 1504 } 1505 1506 if (*toUnicodeStatus != missingCharMarker) { 1507 /* output a remaining target character */ 1508 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source - args->source -1),*toUnicodeStatus,data->currentDeltaToUnicode,err); 1509 *toUnicodeStatus = missingCharMarker; 1510 } 1511 } 1512 1513 args->target = target; 1514 args->source = source; 1515 } 1516 1517 /* structure for SafeClone calculations */ 1518 struct cloneISCIIStruct { 1519 UConverter cnv; 1520 UConverterDataISCII mydata; 1521 }; 1522 1523 static UConverter * 1524 _ISCII_SafeClone(const UConverter *cnv, 1525 void *stackBuffer, 1526 int32_t *pBufferSize, 1527 UErrorCode *status) 1528 { 1529 struct cloneISCIIStruct * localClone; 1530 int32_t bufferSizeNeeded = sizeof(struct cloneISCIIStruct); 1531 1532 if (U_FAILURE(*status)) { 1533 return 0; 1534 } 1535 1536 if (*pBufferSize == 0) { /* 'preflighting' request - set needed size into *pBufferSize */ 1537 *pBufferSize = bufferSizeNeeded; 1538 return 0; 1539 } 1540 1541 localClone = (struct cloneISCIIStruct *)stackBuffer; 1542 /* ucnv.c/ucnv_safeClone() copied the main UConverter already */ 1543 1544 uprv_memcpy(&localClone->mydata, cnv->extraInfo, sizeof(UConverterDataISCII)); 1545 localClone->cnv.extraInfo = &localClone->mydata; 1546 localClone->cnv.isExtraLocal = TRUE; 1547 1548 return &localClone->cnv; 1549 } 1550 1551 static void 1552 _ISCIIGetUnicodeSet(const UConverter *cnv, 1553 const USetAdder *sa, 1554 UConverterUnicodeSet which, 1555 UErrorCode *pErrorCode) 1556 { 1557 int32_t idx, script; 1558 uint8_t mask; 1559 1560 /* Since all ISCII versions allow switching to other ISCII 1561 scripts, we add all roundtrippable characters to this set. */ 1562 sa->addRange(sa->set, 0, ASCII_END); 1563 for (script = DEVANAGARI; script <= MALAYALAM; script++) { 1564 mask = (uint8_t)(lookupInitialData[script].maskEnum); 1565 for (idx = 0; idx < DELTA; idx++) { 1566 /* added check for TELUGU character */ 1567 if ((validityTable[idx] & mask) || (script==TELUGU && idx==0x31)) { 1568 sa->add(sa->set, idx + (script * DELTA) + INDIC_BLOCK_BEGIN); 1569 } 1570 } 1571 } 1572 sa->add(sa->set, DANDA); 1573 sa->add(sa->set, DOUBLE_DANDA); 1574 sa->add(sa->set, ZWNJ); 1575 sa->add(sa->set, ZWJ); 1576 } 1577 1578 static const UConverterImpl _ISCIIImpl={ 1579 1580 UCNV_ISCII, 1581 1582 NULL, 1583 NULL, 1584 1585 _ISCIIOpen, 1586 _ISCIIClose, 1587 _ISCIIReset, 1588 1589 UConverter_toUnicode_ISCII_OFFSETS_LOGIC, 1590 UConverter_toUnicode_ISCII_OFFSETS_LOGIC, 1591 UConverter_fromUnicode_ISCII_OFFSETS_LOGIC, 1592 UConverter_fromUnicode_ISCII_OFFSETS_LOGIC, 1593 NULL, 1594 1595 NULL, 1596 _ISCIIgetName, 1597 NULL, 1598 _ISCII_SafeClone, 1599 _ISCIIGetUnicodeSet 1600 }; 1601 1602 static const UConverterStaticData _ISCIIStaticData={ 1603 sizeof(UConverterStaticData), 1604 "ISCII", 1605 0, 1606 UCNV_IBM, 1607 UCNV_ISCII, 1608 1, 1609 4, 1610 { 0x1a, 0, 0, 0 }, 1611 0x1, 1612 FALSE, 1613 FALSE, 1614 0x0, 1615 0x0, 1616 { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }, /* reserved */ 1617 1618 }; 1619 1620 const UConverterSharedData _ISCIIData= 1621 UCNV_IMMUTABLE_SHARED_DATA_INITIALIZER(&_ISCIIStaticData, &_ISCIIImpl); 1622 1623 #endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */ 1624
