1 /* 2 ********************************************************************** 3 * Copyright (C) 2000-2009, 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 21 22 #include "cmemory.h" 23 #include "ucnv_bld.h" 24 #include "unicode/ucnv.h" 25 #include "ucnv_cnv.h" 26 #include "unicode/ucnv_cb.h" 27 #include "unicode/uset.h" 28 #include "cstring.h" 29 30 #define UCNV_OPTIONS_VERSION_MASK 0xf 31 #define NUKTA 0x093c 32 #define HALANT 0x094d 33 #define ZWNJ 0x200c /* Zero Width Non Joiner */ 34 #define ZWJ 0x200d /* Zero width Joiner */ 35 #define INVALID_CHAR 0xffff 36 #define ATR 0xEF /* Attribute code */ 37 #define EXT 0xF0 /* Extension code */ 38 #define DANDA 0x0964 39 #define DOUBLE_DANDA 0x0965 40 #define ISCII_NUKTA 0xE9 41 #define ISCII_HALANT 0xE8 42 #define ISCII_DANDA 0xEA 43 #define ISCII_INV 0xD9 44 #define ISCII_VOWEL_SIGN_E 0xE0 45 #define INDIC_BLOCK_BEGIN 0x0900 46 #define INDIC_BLOCK_END 0x0D7F 47 #define INDIC_RANGE (INDIC_BLOCK_END - INDIC_BLOCK_BEGIN) 48 #define VOCALLIC_RR 0x0931 49 #define LF 0x0A 50 #define ASCII_END 0xA0 51 #define NO_CHAR_MARKER 0xFFFE 52 #define TELUGU_DELTA DELTA * TELUGU 53 #define DEV_ABBR_SIGN 0x0970 54 #define DEV_ANUDATTA 0x0952 55 #define EXT_RANGE_BEGIN 0xA1 56 #define EXT_RANGE_END 0xEE 57 58 #define PNJ_DELTA 0x0100 59 #define PNJ_BINDI 0x0A02 60 #define PNJ_TIPPI 0x0A70 61 #define PNJ_SIGN_VIRAMA 0x0A4D 62 #define PNJ_ADHAK 0x0A71 63 #define PNJ_HA 0x0A39 64 #define PNJ_RRA 0x0A5C 65 66 static USet* PNJ_BINDI_TIPPI_SET= NULL; 67 static USet* PNJ_CONSONANT_SET= NULL; 68 69 typedef enum { 70 DEVANAGARI =0, 71 BENGALI, 72 GURMUKHI, 73 GUJARATI, 74 ORIYA, 75 TAMIL, 76 TELUGU, 77 KANNADA, 78 MALAYALAM, 79 DELTA=0x80 80 }UniLang; 81 82 /** 83 * Enumeration for switching code pages if <ATR>+<one of below values> 84 * is encountered 85 */ 86 typedef enum { 87 DEF = 0x40, 88 RMN = 0x41, 89 DEV = 0x42, 90 BNG = 0x43, 91 TML = 0x44, 92 TLG = 0x45, 93 ASM = 0x46, 94 ORI = 0x47, 95 KND = 0x48, 96 MLM = 0x49, 97 GJR = 0x4A, 98 PNJ = 0x4B, 99 ARB = 0x71, 100 PES = 0x72, 101 URD = 0x73, 102 SND = 0x74, 103 KSM = 0x75, 104 PST = 0x76 105 }ISCIILang; 106 107 typedef enum { 108 DEV_MASK =0x80, 109 PNJ_MASK =0x40, 110 GJR_MASK =0x20, 111 ORI_MASK =0x10, 112 BNG_MASK =0x08, 113 KND_MASK =0x04, 114 MLM_MASK =0x02, 115 TML_MASK =0x01, 116 ZERO =0x00 117 }MaskEnum; 118 119 #define ISCII_CNV_PREFIX "ISCII,version=" 120 121 typedef struct { 122 UChar contextCharToUnicode; /* previous Unicode codepoint for contextual analysis */ 123 UChar contextCharFromUnicode; /* previous Unicode codepoint for contextual analysis */ 124 uint16_t defDeltaToUnicode; /* delta for switching to default state when DEF is encountered */ 125 uint16_t currentDeltaFromUnicode; /* current delta in Indic block */ 126 uint16_t currentDeltaToUnicode; /* current delta in Indic block */ 127 MaskEnum currentMaskFromUnicode; /* mask for current state in toUnicode */ 128 MaskEnum currentMaskToUnicode; /* mask for current state in toUnicode */ 129 MaskEnum defMaskToUnicode; /* mask for default state in toUnicode */ 130 UBool isFirstBuffer; /* boolean for fromUnicode to see if we need to announce the first script */ 131 UBool resetToDefaultToUnicode; /* boolean for reseting to default delta and mask when a newline is encountered*/ 132 char name[sizeof(ISCII_CNV_PREFIX) + 1]; 133 UChar32 prevToUnicodeStatus; /* Hold the previous toUnicodeStatus. This is necessary because we may need to know the last two code points. */ 134 } UConverterDataISCII; 135 136 typedef struct LookupDataStruct { 137 UniLang uniLang; 138 MaskEnum maskEnum; 139 ISCIILang isciiLang; 140 } LookupDataStruct; 141 142 static const LookupDataStruct lookupInitialData[]={ 143 { DEVANAGARI, DEV_MASK, DEV }, 144 { BENGALI, BNG_MASK, BNG }, 145 { GURMUKHI, PNJ_MASK, PNJ }, 146 { GUJARATI, GJR_MASK, GJR }, 147 { ORIYA, ORI_MASK, ORI }, 148 { TAMIL, TML_MASK, TML }, 149 { TELUGU, KND_MASK, TLG }, 150 { KANNADA, KND_MASK, KND }, 151 { MALAYALAM, MLM_MASK, MLM } 152 }; 153 154 static void initializeSets() { 155 /* TODO: Replace the following two lines with PNJ_CONSONANT_SET = uset_openEmpty(); */ 156 PNJ_CONSONANT_SET = uset_open(0,0); 157 uset_clear(PNJ_CONSONANT_SET); 158 159 uset_addRange(PNJ_CONSONANT_SET, 0x0A15, 0x0A28); 160 uset_addRange(PNJ_CONSONANT_SET, 0x0A2A, 0x0A30); 161 uset_addRange(PNJ_CONSONANT_SET, 0x0A35, 0x0A36); 162 uset_addRange(PNJ_CONSONANT_SET, 0x0A38, 0x0A39); 163 164 PNJ_BINDI_TIPPI_SET = uset_clone(PNJ_CONSONANT_SET); 165 uset_add(PNJ_BINDI_TIPPI_SET, 0x0A05); 166 uset_add(PNJ_BINDI_TIPPI_SET, 0x0A07); 167 uset_add(PNJ_BINDI_TIPPI_SET, 0x0A3F); 168 uset_addRange(PNJ_BINDI_TIPPI_SET, 0x0A41, 0x0A42); 169 170 uset_compact(PNJ_CONSONANT_SET); 171 uset_compact(PNJ_BINDI_TIPPI_SET); 172 } 173 174 static void _ISCIIOpen(UConverter *cnv, UConverterLoadArgs *pArgs, UErrorCode *errorCode) { 175 if(pArgs->onlyTestIsLoadable) { 176 return; 177 } 178 179 /* Ensure that the sets used in special handling of certain Gurmukhi characters are initialized. */ 180 initializeSets(); 181 182 cnv->extraInfo = uprv_malloc(sizeof(UConverterDataISCII)); 183 184 if (cnv->extraInfo != NULL) { 185 int32_t len=0; 186 UConverterDataISCII *converterData= 187 (UConverterDataISCII *) cnv->extraInfo; 188 converterData->contextCharToUnicode=NO_CHAR_MARKER; 189 cnv->toUnicodeStatus = missingCharMarker; 190 converterData->contextCharFromUnicode=0x0000; 191 converterData->resetToDefaultToUnicode=FALSE; 192 /* check if the version requested is supported */ 193 if ((pArgs->options & UCNV_OPTIONS_VERSION_MASK) < 9) { 194 /* initialize state variables */ 195 converterData->currentDeltaFromUnicode 196 = converterData->currentDeltaToUnicode 197 = converterData->defDeltaToUnicode = (uint16_t)(lookupInitialData[pArgs->options & UCNV_OPTIONS_VERSION_MASK].uniLang * DELTA); 198 199 converterData->currentMaskFromUnicode 200 = converterData->currentMaskToUnicode 201 = converterData->defMaskToUnicode = lookupInitialData[pArgs->options & UCNV_OPTIONS_VERSION_MASK].maskEnum; 202 203 converterData->isFirstBuffer=TRUE; 204 (void)uprv_strcpy(converterData->name, ISCII_CNV_PREFIX); 205 len = (int32_t)uprv_strlen(converterData->name); 206 converterData->name[len]= (char)((pArgs->options & UCNV_OPTIONS_VERSION_MASK) + '0'); 207 converterData->name[len+1]=0; 208 209 converterData->prevToUnicodeStatus = 0x0000; 210 } else { 211 uprv_free(cnv->extraInfo); 212 cnv->extraInfo = NULL; 213 *errorCode = U_ILLEGAL_ARGUMENT_ERROR; 214 } 215 216 } else { 217 *errorCode =U_MEMORY_ALLOCATION_ERROR; 218 } 219 } 220 221 static void _ISCIIClose(UConverter *cnv) { 222 if (cnv->extraInfo!=NULL) { 223 if (!cnv->isExtraLocal) { 224 uprv_free(cnv->extraInfo); 225 } 226 cnv->extraInfo=NULL; 227 } 228 if (PNJ_CONSONANT_SET != NULL) { 229 uset_close(PNJ_CONSONANT_SET); 230 PNJ_CONSONANT_SET = NULL; 231 } 232 if (PNJ_BINDI_TIPPI_SET != NULL) { 233 uset_close(PNJ_BINDI_TIPPI_SET); 234 PNJ_BINDI_TIPPI_SET = NULL; 235 } 236 } 237 238 static const char* _ISCIIgetName(const UConverter* cnv) { 239 if (cnv->extraInfo) { 240 UConverterDataISCII* myData= (UConverterDataISCII*)cnv->extraInfo; 241 return myData->name; 242 } 243 return NULL; 244 } 245 246 static void _ISCIIReset(UConverter *cnv, UConverterResetChoice choice) { 247 UConverterDataISCII* data =(UConverterDataISCII *) (cnv->extraInfo); 248 if (choice<=UCNV_RESET_TO_UNICODE) { 249 cnv->toUnicodeStatus = missingCharMarker; 250 cnv->mode=0; 251 data->currentDeltaToUnicode=data->defDeltaToUnicode; 252 data->currentMaskToUnicode = data->defMaskToUnicode; 253 data->contextCharToUnicode=NO_CHAR_MARKER; 254 data->prevToUnicodeStatus = 0x0000; 255 } 256 if (choice!=UCNV_RESET_TO_UNICODE) { 257 cnv->fromUChar32=0x0000; 258 data->contextCharFromUnicode=0x00; 259 data->currentMaskFromUnicode=data->defMaskToUnicode; 260 data->currentDeltaFromUnicode=data->defDeltaToUnicode; 261 data->isFirstBuffer=TRUE; 262 data->resetToDefaultToUnicode=FALSE; 263 } 264 } 265 266 /** 267 * The values in validity table are indexed by the lower bits of Unicode 268 * range 0x0900 - 0x09ff. The values have a structure like: 269 * --------------------------------------------------------------- 270 * | DEV | PNJ | GJR | ORI | BNG | TLG | MLM | TML | 271 * | | | | | ASM | KND | | | 272 * --------------------------------------------------------------- 273 * If a code point is valid in a particular script 274 * then that bit is turned on 275 * 276 * Unicode does not distinguish between Bengali and Assamese so we use 1 bit for 277 * to represent these languages 278 * 279 * Telugu and Kannada have same codepoints except for Vocallic_RR which we special case 280 * and combine and use 1 bit to represent these languages. 281 * 282 * TODO: It is probably easier to understand and maintain to change this 283 * to use uint16_t and give each of the 9 Unicode/script blocks its own bit. 284 */ 285 286 static const uint8_t validityTable[128] = { 287 /* This state table is tool generated please do not edit unless you know exactly what you are doing */ 288 /* Note: This table was edited to mirror the Windows XP implementation */ 289 /*ISCII:Valid:Unicode */ 290 /*0xa0 : 0x00: 0x900 */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 291 /*0xa1 : 0xb8: 0x901 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO , 292 /*0xa2 : 0xfe: 0x902 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 293 /*0xa3 : 0xbf: 0x903 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 294 /*0x00 : 0x00: 0x904 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 295 /*0xa4 : 0xff: 0x905 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 296 /*0xa5 : 0xff: 0x906 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 297 /*0xa6 : 0xff: 0x907 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 298 /*0xa7 : 0xff: 0x908 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 299 /*0xa8 : 0xff: 0x909 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 300 /*0xa9 : 0xff: 0x90a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 301 /*0xaa : 0xfe: 0x90b */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 302 /*0x00 : 0x00: 0x90c */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 303 /*0xae : 0x80: 0x90d */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO , 304 /*0xab : 0x87: 0x90e */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK , 305 /*0xac : 0xff: 0x90f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 306 /*0xad : 0xff: 0x910 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 307 /*0xb2 : 0x80: 0x911 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO , 308 /*0xaf : 0x87: 0x912 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK , 309 /*0xb0 : 0xff: 0x913 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 310 /*0xb1 : 0xff: 0x914 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 311 /*0xb3 : 0xff: 0x915 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 312 /*0xb4 : 0xfe: 0x916 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 313 /*0xb5 : 0xfe: 0x917 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 314 /*0xb6 : 0xfe: 0x918 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 315 /*0xb7 : 0xff: 0x919 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 316 /*0xb8 : 0xff: 0x91a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 317 /*0xb9 : 0xfe: 0x91b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 318 /*0xba : 0xff: 0x91c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 319 /*0xbb : 0xfe: 0x91d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 320 /*0xbc : 0xff: 0x91e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 321 /*0xbd : 0xff: 0x91f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 322 /*0xbe : 0xfe: 0x920 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 323 /*0xbf : 0xfe: 0x921 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 324 /*0xc0 : 0xfe: 0x922 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 325 /*0xc1 : 0xff: 0x923 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 326 /*0xc2 : 0xff: 0x924 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 327 /*0xc3 : 0xfe: 0x925 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 328 /*0xc4 : 0xfe: 0x926 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 329 /*0xc5 : 0xfe: 0x927 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 330 /*0xc6 : 0xff: 0x928 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 331 /*0xc7 : 0x81: 0x929 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + TML_MASK , 332 /*0xc8 : 0xff: 0x92a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 333 /*0xc9 : 0xfe: 0x92b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 334 /*0xca : 0xfe: 0x92c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 335 /*0xcb : 0xfe: 0x92d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 336 /*0xcc : 0xfe: 0x92e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 337 /*0xcd : 0xff: 0x92f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 338 /*0xcf : 0xff: 0x930 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 339 /*0xd0 : 0x87: 0x931 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + MLM_MASK + TML_MASK , 340 /*0xd1 : 0xff: 0x932 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 341 /*0xd2 : 0xb7: 0x933 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + ZERO + KND_MASK + MLM_MASK + TML_MASK , 342 /*0xd3 : 0x83: 0x934 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + MLM_MASK + TML_MASK , 343 /*0xd4 : 0xff: 0x935 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + ZERO + KND_MASK + MLM_MASK + TML_MASK , 344 /*0xd5 : 0xfe: 0x936 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 345 /*0xd6 : 0xbf: 0x937 */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 346 /*0xd7 : 0xff: 0x938 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 347 /*0xd8 : 0xff: 0x939 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 348 /*0x00 : 0x00: 0x93A */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 349 /*0x00 : 0x00: 0x93B */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 350 /*0xe9 : 0xda: 0x93c */ DEV_MASK + PNJ_MASK + ZERO + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO , 351 /*0x00 : 0x00: 0x93d */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 352 /*0xda : 0xff: 0x93e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 353 /*0xdb : 0xff: 0x93f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 354 /*0xdc : 0xff: 0x940 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 355 /*0xdd : 0xff: 0x941 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 356 /*0xde : 0xff: 0x942 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 357 /*0xdf : 0xbe: 0x943 */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 358 /*0x00 : 0x00: 0x944 */ DEV_MASK + ZERO + GJR_MASK + ZERO + BNG_MASK + KND_MASK + ZERO + ZERO , 359 /*0xe3 : 0x80: 0x945 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO , 360 /*0xe0 : 0x87: 0x946 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK , 361 /*0xe1 : 0xff: 0x947 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 362 /*0xe2 : 0xff: 0x948 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 363 /*0xe7 : 0x80: 0x949 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO , 364 /*0xe4 : 0x87: 0x94a */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + KND_MASK + MLM_MASK + TML_MASK , 365 /*0xe5 : 0xff: 0x94b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 366 /*0xe6 : 0xff: 0x94c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 367 /*0xe8 : 0xff: 0x94d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 368 /*0xec : 0x00: 0x94e */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 369 /*0xed : 0x00: 0x94f */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 370 /*0x00 : 0x00: 0x950 */ DEV_MASK + ZERO + GJR_MASK + ZERO + ZERO + ZERO + ZERO + ZERO , 371 /*0x00 : 0x00: 0x951 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 372 /*0x00 : 0x00: 0x952 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 373 /*0x00 : 0x00: 0x953 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 374 /*0x00 : 0x00: 0x954 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 375 /*0x00 : 0x00: 0x955 */ ZERO + ZERO + ZERO + ZERO + ZERO + KND_MASK + ZERO + ZERO , 376 /*0x00 : 0x00: 0x956 */ ZERO + ZERO + ZERO + ORI_MASK + ZERO + KND_MASK + ZERO + ZERO , 377 /*0x00 : 0x00: 0x957 */ ZERO + ZERO + ZERO + ORI_MASK + BNG_MASK + ZERO + MLM_MASK + ZERO , 378 /*0x00 : 0x00: 0x958 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 379 /*0x00 : 0x00: 0x959 */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 380 /*0x00 : 0x00: 0x95a */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 381 /*0x00 : 0x00: 0x95b */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 382 /*0x00 : 0x00: 0x95c */ DEV_MASK + PNJ_MASK + ZERO + ZERO + BNG_MASK + ZERO + ZERO + ZERO , 383 /*0x00 : 0x00: 0x95d */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO , 384 /*0x00 : 0x00: 0x95e */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 385 /*0xce : 0x98: 0x95f */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + ZERO + ZERO + ZERO , 386 /*0x00 : 0x00: 0x960 */ DEV_MASK + ZERO + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 387 /*0x00 : 0x00: 0x961 */ DEV_MASK + ZERO + ZERO + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + ZERO , 388 /*0x00 : 0x00: 0x962 */ DEV_MASK + ZERO + ZERO + ZERO + BNG_MASK + ZERO + ZERO + ZERO , 389 /*0x00 : 0x00: 0x963 */ DEV_MASK + ZERO + ZERO + ZERO + BNG_MASK + ZERO + ZERO + ZERO , 390 /*0xea : 0xf8: 0x964 */ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 391 /*0xeaea : 0x00: 0x965*/ DEV_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 392 /*0xf1 : 0xff: 0x966 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 393 /*0xf2 : 0xff: 0x967 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 394 /*0xf3 : 0xff: 0x968 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 395 /*0xf4 : 0xff: 0x969 */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 396 /*0xf5 : 0xff: 0x96a */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 397 /*0xf6 : 0xff: 0x96b */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 398 /*0xf7 : 0xff: 0x96c */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 399 /*0xf8 : 0xff: 0x96d */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 400 /*0xf9 : 0xff: 0x96e */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 401 /*0xfa : 0xff: 0x96f */ DEV_MASK + PNJ_MASK + GJR_MASK + ORI_MASK + BNG_MASK + KND_MASK + MLM_MASK + TML_MASK , 402 /*0x00 : 0x80: 0x970 */ DEV_MASK + PNJ_MASK + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO , 403 /* 404 * The length of the array is 128 to provide values for 0x900..0x97f. 405 * The last 15 entries for 0x971..0x97f of the validity table are all zero 406 * because no Indic script uses such Unicode code points. 407 */ 408 /*0x00 : 0x00: 0x9yz */ ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO + ZERO 409 }; 410 411 static const uint16_t fromUnicodeTable[128]={ 412 0x00a0 ,/* 0x0900 */ 413 0x00a1 ,/* 0x0901 */ 414 0x00a2 ,/* 0x0902 */ 415 0x00a3 ,/* 0x0903 */ 416 0xa4e0 ,/* 0x0904 */ 417 0x00a4 ,/* 0x0905 */ 418 0x00a5 ,/* 0x0906 */ 419 0x00a6 ,/* 0x0907 */ 420 0x00a7 ,/* 0x0908 */ 421 0x00a8 ,/* 0x0909 */ 422 0x00a9 ,/* 0x090a */ 423 0x00aa ,/* 0x090b */ 424 0xA6E9 ,/* 0x090c */ 425 0x00ae ,/* 0x090d */ 426 0x00ab ,/* 0x090e */ 427 0x00ac ,/* 0x090f */ 428 0x00ad ,/* 0x0910 */ 429 0x00b2 ,/* 0x0911 */ 430 0x00af ,/* 0x0912 */ 431 0x00b0 ,/* 0x0913 */ 432 0x00b1 ,/* 0x0914 */ 433 0x00b3 ,/* 0x0915 */ 434 0x00b4 ,/* 0x0916 */ 435 0x00b5 ,/* 0x0917 */ 436 0x00b6 ,/* 0x0918 */ 437 0x00b7 ,/* 0x0919 */ 438 0x00b8 ,/* 0x091a */ 439 0x00b9 ,/* 0x091b */ 440 0x00ba ,/* 0x091c */ 441 0x00bb ,/* 0x091d */ 442 0x00bc ,/* 0x091e */ 443 0x00bd ,/* 0x091f */ 444 0x00be ,/* 0x0920 */ 445 0x00bf ,/* 0x0921 */ 446 0x00c0 ,/* 0x0922 */ 447 0x00c1 ,/* 0x0923 */ 448 0x00c2 ,/* 0x0924 */ 449 0x00c3 ,/* 0x0925 */ 450 0x00c4 ,/* 0x0926 */ 451 0x00c5 ,/* 0x0927 */ 452 0x00c6 ,/* 0x0928 */ 453 0x00c7 ,/* 0x0929 */ 454 0x00c8 ,/* 0x092a */ 455 0x00c9 ,/* 0x092b */ 456 0x00ca ,/* 0x092c */ 457 0x00cb ,/* 0x092d */ 458 0x00cc ,/* 0x092e */ 459 0x00cd ,/* 0x092f */ 460 0x00cf ,/* 0x0930 */ 461 0x00d0 ,/* 0x0931 */ 462 0x00d1 ,/* 0x0932 */ 463 0x00d2 ,/* 0x0933 */ 464 0x00d3 ,/* 0x0934 */ 465 0x00d4 ,/* 0x0935 */ 466 0x00d5 ,/* 0x0936 */ 467 0x00d6 ,/* 0x0937 */ 468 0x00d7 ,/* 0x0938 */ 469 0x00d8 ,/* 0x0939 */ 470 0xFFFF ,/* 0x093A */ 471 0xFFFF ,/* 0x093B */ 472 0x00e9 ,/* 0x093c */ 473 0xEAE9 ,/* 0x093d */ 474 0x00da ,/* 0x093e */ 475 0x00db ,/* 0x093f */ 476 0x00dc ,/* 0x0940 */ 477 0x00dd ,/* 0x0941 */ 478 0x00de ,/* 0x0942 */ 479 0x00df ,/* 0x0943 */ 480 0xDFE9 ,/* 0x0944 */ 481 0x00e3 ,/* 0x0945 */ 482 0x00e0 ,/* 0x0946 */ 483 0x00e1 ,/* 0x0947 */ 484 0x00e2 ,/* 0x0948 */ 485 0x00e7 ,/* 0x0949 */ 486 0x00e4 ,/* 0x094a */ 487 0x00e5 ,/* 0x094b */ 488 0x00e6 ,/* 0x094c */ 489 0x00e8 ,/* 0x094d */ 490 0x00ec ,/* 0x094e */ 491 0x00ed ,/* 0x094f */ 492 0xA1E9 ,/* 0x0950 */ /* OM Symbol */ 493 0xFFFF ,/* 0x0951 */ 494 0xF0B8 ,/* 0x0952 */ 495 0xFFFF ,/* 0x0953 */ 496 0xFFFF ,/* 0x0954 */ 497 0xFFFF ,/* 0x0955 */ 498 0xFFFF ,/* 0x0956 */ 499 0xFFFF ,/* 0x0957 */ 500 0xb3e9 ,/* 0x0958 */ 501 0xb4e9 ,/* 0x0959 */ 502 0xb5e9 ,/* 0x095a */ 503 0xbae9 ,/* 0x095b */ 504 0xbfe9 ,/* 0x095c */ 505 0xC0E9 ,/* 0x095d */ 506 0xc9e9 ,/* 0x095e */ 507 0x00ce ,/* 0x095f */ 508 0xAAe9 ,/* 0x0960 */ 509 0xA7E9 ,/* 0x0961 */ 510 0xDBE9 ,/* 0x0962 */ 511 0xDCE9 ,/* 0x0963 */ 512 0x00ea ,/* 0x0964 */ 513 0xeaea ,/* 0x0965 */ 514 0x00f1 ,/* 0x0966 */ 515 0x00f2 ,/* 0x0967 */ 516 0x00f3 ,/* 0x0968 */ 517 0x00f4 ,/* 0x0969 */ 518 0x00f5 ,/* 0x096a */ 519 0x00f6 ,/* 0x096b */ 520 0x00f7 ,/* 0x096c */ 521 0x00f8 ,/* 0x096d */ 522 0x00f9 ,/* 0x096e */ 523 0x00fa ,/* 0x096f */ 524 0xF0BF ,/* 0x0970 */ 525 0xFFFF ,/* 0x0971 */ 526 0xFFFF ,/* 0x0972 */ 527 0xFFFF ,/* 0x0973 */ 528 0xFFFF ,/* 0x0974 */ 529 0xFFFF ,/* 0x0975 */ 530 0xFFFF ,/* 0x0976 */ 531 0xFFFF ,/* 0x0977 */ 532 0xFFFF ,/* 0x0978 */ 533 0xFFFF ,/* 0x0979 */ 534 0xFFFF ,/* 0x097a */ 535 0xFFFF ,/* 0x097b */ 536 0xFFFF ,/* 0x097c */ 537 0xFFFF ,/* 0x097d */ 538 0xFFFF ,/* 0x097e */ 539 0xFFFF ,/* 0x097f */ 540 }; 541 static const uint16_t toUnicodeTable[256]={ 542 0x0000,/* 0x00 */ 543 0x0001,/* 0x01 */ 544 0x0002,/* 0x02 */ 545 0x0003,/* 0x03 */ 546 0x0004,/* 0x04 */ 547 0x0005,/* 0x05 */ 548 0x0006,/* 0x06 */ 549 0x0007,/* 0x07 */ 550 0x0008,/* 0x08 */ 551 0x0009,/* 0x09 */ 552 0x000a,/* 0x0a */ 553 0x000b,/* 0x0b */ 554 0x000c,/* 0x0c */ 555 0x000d,/* 0x0d */ 556 0x000e,/* 0x0e */ 557 0x000f,/* 0x0f */ 558 0x0010,/* 0x10 */ 559 0x0011,/* 0x11 */ 560 0x0012,/* 0x12 */ 561 0x0013,/* 0x13 */ 562 0x0014,/* 0x14 */ 563 0x0015,/* 0x15 */ 564 0x0016,/* 0x16 */ 565 0x0017,/* 0x17 */ 566 0x0018,/* 0x18 */ 567 0x0019,/* 0x19 */ 568 0x001a,/* 0x1a */ 569 0x001b,/* 0x1b */ 570 0x001c,/* 0x1c */ 571 0x001d,/* 0x1d */ 572 0x001e,/* 0x1e */ 573 0x001f,/* 0x1f */ 574 0x0020,/* 0x20 */ 575 0x0021,/* 0x21 */ 576 0x0022,/* 0x22 */ 577 0x0023,/* 0x23 */ 578 0x0024,/* 0x24 */ 579 0x0025,/* 0x25 */ 580 0x0026,/* 0x26 */ 581 0x0027,/* 0x27 */ 582 0x0028,/* 0x28 */ 583 0x0029,/* 0x29 */ 584 0x002a,/* 0x2a */ 585 0x002b,/* 0x2b */ 586 0x002c,/* 0x2c */ 587 0x002d,/* 0x2d */ 588 0x002e,/* 0x2e */ 589 0x002f,/* 0x2f */ 590 0x0030,/* 0x30 */ 591 0x0031,/* 0x31 */ 592 0x0032,/* 0x32 */ 593 0x0033,/* 0x33 */ 594 0x0034,/* 0x34 */ 595 0x0035,/* 0x35 */ 596 0x0036,/* 0x36 */ 597 0x0037,/* 0x37 */ 598 0x0038,/* 0x38 */ 599 0x0039,/* 0x39 */ 600 0x003A,/* 0x3A */ 601 0x003B,/* 0x3B */ 602 0x003c,/* 0x3c */ 603 0x003d,/* 0x3d */ 604 0x003e,/* 0x3e */ 605 0x003f,/* 0x3f */ 606 0x0040,/* 0x40 */ 607 0x0041,/* 0x41 */ 608 0x0042,/* 0x42 */ 609 0x0043,/* 0x43 */ 610 0x0044,/* 0x44 */ 611 0x0045,/* 0x45 */ 612 0x0046,/* 0x46 */ 613 0x0047,/* 0x47 */ 614 0x0048,/* 0x48 */ 615 0x0049,/* 0x49 */ 616 0x004a,/* 0x4a */ 617 0x004b,/* 0x4b */ 618 0x004c,/* 0x4c */ 619 0x004d,/* 0x4d */ 620 0x004e,/* 0x4e */ 621 0x004f,/* 0x4f */ 622 0x0050,/* 0x50 */ 623 0x0051,/* 0x51 */ 624 0x0052,/* 0x52 */ 625 0x0053,/* 0x53 */ 626 0x0054,/* 0x54 */ 627 0x0055,/* 0x55 */ 628 0x0056,/* 0x56 */ 629 0x0057,/* 0x57 */ 630 0x0058,/* 0x58 */ 631 0x0059,/* 0x59 */ 632 0x005a,/* 0x5a */ 633 0x005b,/* 0x5b */ 634 0x005c,/* 0x5c */ 635 0x005d,/* 0x5d */ 636 0x005e,/* 0x5e */ 637 0x005f,/* 0x5f */ 638 0x0060,/* 0x60 */ 639 0x0061,/* 0x61 */ 640 0x0062,/* 0x62 */ 641 0x0063,/* 0x63 */ 642 0x0064,/* 0x64 */ 643 0x0065,/* 0x65 */ 644 0x0066,/* 0x66 */ 645 0x0067,/* 0x67 */ 646 0x0068,/* 0x68 */ 647 0x0069,/* 0x69 */ 648 0x006a,/* 0x6a */ 649 0x006b,/* 0x6b */ 650 0x006c,/* 0x6c */ 651 0x006d,/* 0x6d */ 652 0x006e,/* 0x6e */ 653 0x006f,/* 0x6f */ 654 0x0070,/* 0x70 */ 655 0x0071,/* 0x71 */ 656 0x0072,/* 0x72 */ 657 0x0073,/* 0x73 */ 658 0x0074,/* 0x74 */ 659 0x0075,/* 0x75 */ 660 0x0076,/* 0x76 */ 661 0x0077,/* 0x77 */ 662 0x0078,/* 0x78 */ 663 0x0079,/* 0x79 */ 664 0x007a,/* 0x7a */ 665 0x007b,/* 0x7b */ 666 0x007c,/* 0x7c */ 667 0x007d,/* 0x7d */ 668 0x007e,/* 0x7e */ 669 0x007f,/* 0x7f */ 670 0x0080,/* 0x80 */ 671 0x0081,/* 0x81 */ 672 0x0082,/* 0x82 */ 673 0x0083,/* 0x83 */ 674 0x0084,/* 0x84 */ 675 0x0085,/* 0x85 */ 676 0x0086,/* 0x86 */ 677 0x0087,/* 0x87 */ 678 0x0088,/* 0x88 */ 679 0x0089,/* 0x89 */ 680 0x008a,/* 0x8a */ 681 0x008b,/* 0x8b */ 682 0x008c,/* 0x8c */ 683 0x008d,/* 0x8d */ 684 0x008e,/* 0x8e */ 685 0x008f,/* 0x8f */ 686 0x0090,/* 0x90 */ 687 0x0091,/* 0x91 */ 688 0x0092,/* 0x92 */ 689 0x0093,/* 0x93 */ 690 0x0094,/* 0x94 */ 691 0x0095,/* 0x95 */ 692 0x0096,/* 0x96 */ 693 0x0097,/* 0x97 */ 694 0x0098,/* 0x98 */ 695 0x0099,/* 0x99 */ 696 0x009a,/* 0x9a */ 697 0x009b,/* 0x9b */ 698 0x009c,/* 0x9c */ 699 0x009d,/* 0x9d */ 700 0x009e,/* 0x9e */ 701 0x009f,/* 0x9f */ 702 0x00A0,/* 0xa0 */ 703 0x0901,/* 0xa1 */ 704 0x0902,/* 0xa2 */ 705 0x0903,/* 0xa3 */ 706 0x0905,/* 0xa4 */ 707 0x0906,/* 0xa5 */ 708 0x0907,/* 0xa6 */ 709 0x0908,/* 0xa7 */ 710 0x0909,/* 0xa8 */ 711 0x090a,/* 0xa9 */ 712 0x090b,/* 0xaa */ 713 0x090e,/* 0xab */ 714 0x090f,/* 0xac */ 715 0x0910,/* 0xad */ 716 0x090d,/* 0xae */ 717 0x0912,/* 0xaf */ 718 0x0913,/* 0xb0 */ 719 0x0914,/* 0xb1 */ 720 0x0911,/* 0xb2 */ 721 0x0915,/* 0xb3 */ 722 0x0916,/* 0xb4 */ 723 0x0917,/* 0xb5 */ 724 0x0918,/* 0xb6 */ 725 0x0919,/* 0xb7 */ 726 0x091a,/* 0xb8 */ 727 0x091b,/* 0xb9 */ 728 0x091c,/* 0xba */ 729 0x091d,/* 0xbb */ 730 0x091e,/* 0xbc */ 731 0x091f,/* 0xbd */ 732 0x0920,/* 0xbe */ 733 0x0921,/* 0xbf */ 734 0x0922,/* 0xc0 */ 735 0x0923,/* 0xc1 */ 736 0x0924,/* 0xc2 */ 737 0x0925,/* 0xc3 */ 738 0x0926,/* 0xc4 */ 739 0x0927,/* 0xc5 */ 740 0x0928,/* 0xc6 */ 741 0x0929,/* 0xc7 */ 742 0x092a,/* 0xc8 */ 743 0x092b,/* 0xc9 */ 744 0x092c,/* 0xca */ 745 0x092d,/* 0xcb */ 746 0x092e,/* 0xcc */ 747 0x092f,/* 0xcd */ 748 0x095f,/* 0xce */ 749 0x0930,/* 0xcf */ 750 0x0931,/* 0xd0 */ 751 0x0932,/* 0xd1 */ 752 0x0933,/* 0xd2 */ 753 0x0934,/* 0xd3 */ 754 0x0935,/* 0xd4 */ 755 0x0936,/* 0xd5 */ 756 0x0937,/* 0xd6 */ 757 0x0938,/* 0xd7 */ 758 0x0939,/* 0xd8 */ 759 0x200D,/* 0xd9 */ 760 0x093e,/* 0xda */ 761 0x093f,/* 0xdb */ 762 0x0940,/* 0xdc */ 763 0x0941,/* 0xdd */ 764 0x0942,/* 0xde */ 765 0x0943,/* 0xdf */ 766 0x0946,/* 0xe0 */ 767 0x0947,/* 0xe1 */ 768 0x0948,/* 0xe2 */ 769 0x0945,/* 0xe3 */ 770 0x094a,/* 0xe4 */ 771 0x094b,/* 0xe5 */ 772 0x094c,/* 0xe6 */ 773 0x0949,/* 0xe7 */ 774 0x094d,/* 0xe8 */ 775 0x093c,/* 0xe9 */ 776 0x0964,/* 0xea */ 777 0xFFFF,/* 0xeb */ 778 0xFFFF,/* 0xec */ 779 0xFFFF,/* 0xed */ 780 0xFFFF,/* 0xee */ 781 0xFFFF,/* 0xef */ 782 0xFFFF,/* 0xf0 */ 783 0x0966,/* 0xf1 */ 784 0x0967,/* 0xf2 */ 785 0x0968,/* 0xf3 */ 786 0x0969,/* 0xf4 */ 787 0x096a,/* 0xf5 */ 788 0x096b,/* 0xf6 */ 789 0x096c,/* 0xf7 */ 790 0x096d,/* 0xf8 */ 791 0x096e,/* 0xf9 */ 792 0x096f,/* 0xfa */ 793 0xFFFF,/* 0xfb */ 794 0xFFFF,/* 0xfc */ 795 0xFFFF,/* 0xfd */ 796 0xFFFF,/* 0xfe */ 797 0xFFFF /* 0xff */ 798 }; 799 800 static const uint16_t vowelSignESpecialCases[][2]={ 801 { 2 /*length of array*/ , 0 }, 802 { 0xA4 , 0x0904 }, 803 }; 804 805 static const uint16_t nuktaSpecialCases[][2]={ 806 { 16 /*length of array*/ , 0 }, 807 { 0xA6 , 0x090c }, 808 { 0xEA , 0x093D }, 809 { 0xDF , 0x0944 }, 810 { 0xA1 , 0x0950 }, 811 { 0xb3 , 0x0958 }, 812 { 0xb4 , 0x0959 }, 813 { 0xb5 , 0x095a }, 814 { 0xba , 0x095b }, 815 { 0xbf , 0x095c }, 816 { 0xC0 , 0x095d }, 817 { 0xc9 , 0x095e }, 818 { 0xAA , 0x0960 }, 819 { 0xA7 , 0x0961 }, 820 { 0xDB , 0x0962 }, 821 { 0xDC , 0x0963 }, 822 }; 823 824 825 #define WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,targetByteUnit,err){ \ 826 int32_t offset = (int32_t)(source - args->source-1); \ 827 /* write the targetUniChar to target */ \ 828 if(target < targetLimit){ \ 829 if(targetByteUnit <= 0xFF){ \ 830 *(target)++ = (uint8_t)(targetByteUnit); \ 831 if(offsets){ \ 832 *(offsets++) = offset; \ 833 } \ 834 }else{ \ 835 if (targetByteUnit > 0xFFFF) { \ 836 *(target)++ = (uint8_t)(targetByteUnit>>16); \ 837 if (offsets) { \ 838 --offset; \ 839 *(offsets++) = offset; \ 840 } \ 841 } \ 842 if (!(target < targetLimit)) { \ 843 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \ 844 (uint8_t)(targetByteUnit >> 8); \ 845 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \ 846 (uint8_t)targetByteUnit; \ 847 *err = U_BUFFER_OVERFLOW_ERROR; \ 848 } else { \ 849 *(target)++ = (uint8_t)(targetByteUnit>>8); \ 850 if(offsets){ \ 851 *(offsets++) = offset; \ 852 } \ 853 if(target < targetLimit){ \ 854 *(target)++ = (uint8_t) targetByteUnit; \ 855 if(offsets){ \ 856 *(offsets++) = offset ; \ 857 } \ 858 }else{ \ 859 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] =\ 860 (uint8_t) (targetByteUnit); \ 861 *err = U_BUFFER_OVERFLOW_ERROR; \ 862 } \ 863 } \ 864 } \ 865 }else{ \ 866 if (targetByteUnit & 0xFF0000) { \ 867 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \ 868 (uint8_t) (targetByteUnit >>16); \ 869 } \ 870 if(targetByteUnit & 0xFF00){ \ 871 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \ 872 (uint8_t) (targetByteUnit >>8); \ 873 } \ 874 args->converter->charErrorBuffer[args->converter->charErrorBufferLength++] = \ 875 (uint8_t) (targetByteUnit); \ 876 *err = U_BUFFER_OVERFLOW_ERROR; \ 877 } \ 878 } 879 880 /* Rules: 881 * Explicit Halant : 882 * <HALANT> + <ZWNJ> 883 * Soft Halant : 884 * <HALANT> + <ZWJ> 885 */ 886 887 static void UConverter_fromUnicode_ISCII_OFFSETS_LOGIC( 888 UConverterFromUnicodeArgs * args, UErrorCode * err) { 889 const UChar *source = args->source; 890 const UChar *sourceLimit = args->sourceLimit; 891 unsigned char *target = (unsigned char *) args->target; 892 unsigned char *targetLimit = (unsigned char *) args->targetLimit; 893 int32_t* offsets = args->offsets; 894 uint32_t targetByteUnit = 0x0000; 895 UChar32 sourceChar = 0x0000; 896 UChar32 tempContextFromUnicode = 0x0000; /* For special handling of the Gurmukhi script. */ 897 UConverterDataISCII *converterData; 898 uint16_t newDelta=0; 899 uint16_t range = 0; 900 UBool deltaChanged = FALSE; 901 902 if ((args->converter == NULL) || (args->targetLimit < args->target) || (args->sourceLimit < args->source)) { 903 *err = U_ILLEGAL_ARGUMENT_ERROR; 904 return; 905 } 906 /* initialize data */ 907 converterData=(UConverterDataISCII*)args->converter->extraInfo; 908 newDelta=converterData->currentDeltaFromUnicode; 909 range = (uint16_t)(newDelta/DELTA); 910 911 if ((sourceChar = args->converter->fromUChar32)!=0) { 912 goto getTrail; 913 } 914 915 /*writing the char to the output stream */ 916 while (source < sourceLimit) { 917 /* Write the language code following LF only if LF is not the last character. */ 918 if (args->converter->fromUnicodeStatus == LF) { 919 targetByteUnit = ATR<<8; 920 targetByteUnit += (uint8_t) lookupInitialData[range].isciiLang; 921 args->converter->fromUnicodeStatus = 0x0000; 922 /* now append ATR and language code */ 923 WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,targetByteUnit,err); 924 if (U_FAILURE(*err)) { 925 break; 926 } 927 } 928 929 sourceChar = *source++; 930 tempContextFromUnicode = converterData->contextCharFromUnicode; 931 932 targetByteUnit = missingCharMarker; 933 934 /*check if input is in ASCII and C0 control codes range*/ 935 if (sourceChar <= ASCII_END) { 936 args->converter->fromUnicodeStatus = sourceChar; 937 WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,sourceChar,err); 938 if (U_FAILURE(*err)) { 939 break; 940 } 941 continue; 942 } 943 switch (sourceChar) { 944 case ZWNJ: 945 /* contextChar has HALANT */ 946 if (converterData->contextCharFromUnicode) { 947 converterData->contextCharFromUnicode = 0x00; 948 targetByteUnit = ISCII_HALANT; 949 } else { 950 /* consume ZWNJ and continue */ 951 converterData->contextCharFromUnicode = 0x00; 952 continue; 953 } 954 break; 955 case ZWJ: 956 /* contextChar has HALANT */ 957 if (converterData->contextCharFromUnicode) { 958 targetByteUnit = ISCII_NUKTA; 959 } else { 960 targetByteUnit =ISCII_INV; 961 } 962 converterData->contextCharFromUnicode = 0x00; 963 break; 964 default: 965 /* is the sourceChar in the INDIC_RANGE? */ 966 if ((uint16_t)(INDIC_BLOCK_END-sourceChar) <= INDIC_RANGE) { 967 /* Danda and Double Danda are valid in Northern scripts.. since Unicode 968 * does not include these codepoints in all Northern scrips we need to 969 * filter them out 970 */ 971 if (sourceChar!= DANDA && sourceChar != DOUBLE_DANDA) { 972 /* find out to which block the souceChar belongs*/ 973 range =(uint16_t)((sourceChar-INDIC_BLOCK_BEGIN)/DELTA); 974 newDelta =(uint16_t)(range*DELTA); 975 976 /* Now are we in the same block as the previous? */ 977 if (newDelta!= converterData->currentDeltaFromUnicode || converterData->isFirstBuffer) { 978 converterData->currentDeltaFromUnicode = newDelta; 979 converterData->currentMaskFromUnicode = lookupInitialData[range].maskEnum; 980 deltaChanged =TRUE; 981 converterData->isFirstBuffer=FALSE; 982 } 983 984 if (converterData->currentDeltaFromUnicode == PNJ_DELTA) { 985 if (sourceChar == PNJ_TIPPI) { 986 /* Make sure Tippi is converterd to Bindi. */ 987 sourceChar = PNJ_BINDI; 988 } else if (sourceChar == PNJ_ADHAK) { 989 /* This is for consonant cluster handling. */ 990 converterData->contextCharFromUnicode = PNJ_ADHAK; 991 } 992 993 } 994 /* Normalize all Indic codepoints to Devanagari and map them to ISCII */ 995 /* now subtract the new delta from sourceChar*/ 996 sourceChar -= converterData->currentDeltaFromUnicode; 997 } 998 999 /* get the target byte unit */ 1000 targetByteUnit=fromUnicodeTable[(uint8_t)sourceChar]; 1001 1002 /* is the code point valid in current script? */ 1003 if ((validityTable[(uint8_t)sourceChar] & converterData->currentMaskFromUnicode)==0) { 1004 /* Vocallic RR is assigned in ISCII Telugu and Unicode */ 1005 if (converterData->currentDeltaFromUnicode!=(TELUGU_DELTA) || sourceChar!=VOCALLIC_RR) { 1006 targetByteUnit=missingCharMarker; 1007 } 1008 } 1009 1010 if (deltaChanged) { 1011 /* we are in a script block which is different than 1012 * previous sourceChar's script block write ATR and language codes 1013 */ 1014 uint32_t temp=0; 1015 temp =(uint16_t)(ATR<<8); 1016 temp += (uint16_t)((uint8_t) lookupInitialData[range].isciiLang); 1017 /* reset */ 1018 deltaChanged=FALSE; 1019 /* now append ATR and language code */ 1020 WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,temp,err); 1021 if (U_FAILURE(*err)) { 1022 break; 1023 } 1024 } 1025 1026 if (converterData->currentDeltaFromUnicode == PNJ_DELTA && (sourceChar + PNJ_DELTA) == PNJ_ADHAK) { 1027 continue; 1028 } 1029 } 1030 /* reset context char */ 1031 converterData->contextCharFromUnicode = 0x00; 1032 break; 1033 } 1034 if (converterData->currentDeltaFromUnicode == PNJ_DELTA && tempContextFromUnicode == PNJ_ADHAK && uset_contains(PNJ_CONSONANT_SET, (sourceChar + PNJ_DELTA))) { 1035 /* If the previous codepoint is Adhak and the current codepoint is a consonant, the targetByteUnit should be C + Halant + C. */ 1036 /* reset context char */ 1037 converterData->contextCharFromUnicode = 0x0000; 1038 targetByteUnit = targetByteUnit << 16 | ISCII_HALANT << 8 | targetByteUnit; 1039 /* write targetByteUnit to target */ 1040 WRITE_TO_TARGET_FROM_U(args, offsets, source, target, targetLimit, targetByteUnit,err); 1041 if (U_FAILURE(*err)) { 1042 break; 1043 } 1044 } else if (targetByteUnit != missingCharMarker) { 1045 if (targetByteUnit==ISCII_HALANT) { 1046 converterData->contextCharFromUnicode = (UChar)targetByteUnit; 1047 } 1048 /* write targetByteUnit to target*/ 1049 WRITE_TO_TARGET_FROM_U(args,offsets,source,target,targetLimit,targetByteUnit,err); 1050 if (U_FAILURE(*err)) { 1051 break; 1052 } 1053 } else { 1054 /* oops.. the code point is unassigned */ 1055 /*check if the char is a First surrogate*/ 1056 if (UTF_IS_SURROGATE(sourceChar)) { 1057 if (UTF_IS_SURROGATE_FIRST(sourceChar)) { 1058 getTrail: 1059 /*look ahead to find the trail surrogate*/ 1060 if (source < sourceLimit) { 1061 /* test the following code unit */ 1062 UChar trail= (*source); 1063 if (UTF_IS_SECOND_SURROGATE(trail)) { 1064 source++; 1065 sourceChar=UTF16_GET_PAIR_VALUE(sourceChar, trail); 1066 *err =U_INVALID_CHAR_FOUND; 1067 /* convert this surrogate code point */ 1068 /* exit this condition tree */ 1069 } else { 1070 /* this is an unmatched lead code unit (1st surrogate) */ 1071 /* callback(illegal) */ 1072 *err=U_ILLEGAL_CHAR_FOUND; 1073 } 1074 } else { 1075 /* no more input */ 1076 *err = U_ZERO_ERROR; 1077 } 1078 } else { 1079 /* this is an unmatched trail code unit (2nd surrogate) */ 1080 /* callback(illegal) */ 1081 *err=U_ILLEGAL_CHAR_FOUND; 1082 } 1083 } else { 1084 /* callback(unassigned) for a BMP code point */ 1085 *err = U_INVALID_CHAR_FOUND; 1086 } 1087 1088 args->converter->fromUChar32=sourceChar; 1089 break; 1090 } 1091 }/* end while(mySourceIndex<mySourceLength) */ 1092 1093 /*save the state and return */ 1094 args->source = source; 1095 args->target = (char*)target; 1096 } 1097 1098 static const uint16_t lookupTable[][2]={ 1099 { ZERO, ZERO }, /*DEFALT*/ 1100 { ZERO, ZERO }, /*ROMAN*/ 1101 { DEVANAGARI, DEV_MASK }, 1102 { BENGALI, BNG_MASK }, 1103 { TAMIL, TML_MASK }, 1104 { TELUGU, KND_MASK }, 1105 { BENGALI, BNG_MASK }, 1106 { ORIYA, ORI_MASK }, 1107 { KANNADA, KND_MASK }, 1108 { MALAYALAM, MLM_MASK }, 1109 { GUJARATI, GJR_MASK }, 1110 { GURMUKHI, PNJ_MASK } 1111 }; 1112 1113 #define WRITE_TO_TARGET_TO_U(args,source,target,offsets,offset,targetUniChar,delta, err){\ 1114 /* add offset to current Indic Block */ \ 1115 if(targetUniChar>ASCII_END && \ 1116 targetUniChar != ZWJ && \ 1117 targetUniChar != ZWNJ && \ 1118 targetUniChar != DANDA && \ 1119 targetUniChar != DOUBLE_DANDA){ \ 1120 \ 1121 targetUniChar+=(uint16_t)(delta); \ 1122 } \ 1123 /* now write the targetUniChar */ \ 1124 if(target<args->targetLimit){ \ 1125 *(target)++ = (UChar)targetUniChar; \ 1126 if(offsets){ \ 1127 *(offsets)++ = (int32_t)(offset); \ 1128 } \ 1129 }else{ \ 1130 args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++] = \ 1131 (UChar)targetUniChar; \ 1132 *err = U_BUFFER_OVERFLOW_ERROR; \ 1133 } \ 1134 } 1135 1136 #define GET_MAPPING(sourceChar,targetUniChar,data){ \ 1137 targetUniChar = toUnicodeTable[(sourceChar)] ; \ 1138 /* is the code point valid in current script? */ \ 1139 if(sourceChar> ASCII_END && \ 1140 (validityTable[(uint8_t)targetUniChar] & data->currentMaskToUnicode)==0){ \ 1141 /* Vocallic RR is assigne in ISCII Telugu and Unicode */ \ 1142 if(data->currentDeltaToUnicode!=(TELUGU_DELTA) || \ 1143 targetUniChar!=VOCALLIC_RR){ \ 1144 targetUniChar=missingCharMarker; \ 1145 } \ 1146 } \ 1147 } 1148 1149 /*********** 1150 * Rules for ISCII to Unicode converter 1151 * ISCII is stateful encoding. To convert ISCII bytes to Unicode, 1152 * which has both precomposed and decomposed forms characters 1153 * pre-context and post-context need to be considered. 1154 * 1155 * Post context 1156 * i) ATR : Attribute code is used to declare the font and script switching. 1157 * Currently we only switch scripts and font codes consumed without generating an error 1158 * ii) EXT : Extention code is used to declare switching to Sanskrit and for obscure, 1159 * obsolete characters 1160 * Pre context 1161 * i) Halant: if preceeded by a halant then it is a explicit halant 1162 * ii) Nukta : 1163 * a) if preceeded by a halant then it is a soft halant 1164 * b) if preceeded by specific consonants and the ligatures have pre-composed 1165 * characters in Unicode then convert to pre-composed characters 1166 * iii) Danda: If Danda is preceeded by a Danda then convert to Double Danda 1167 * 1168 */ 1169 1170 static void UConverter_toUnicode_ISCII_OFFSETS_LOGIC(UConverterToUnicodeArgs *args, UErrorCode* err) { 1171 const char *source = ( char *) args->source; 1172 UChar *target = args->target; 1173 const char *sourceLimit = args->sourceLimit; 1174 const UChar* targetLimit = args->targetLimit; 1175 uint32_t targetUniChar = 0x0000; 1176 uint8_t sourceChar = 0x0000; 1177 UConverterDataISCII* data; 1178 UChar32* toUnicodeStatus=NULL; 1179 UChar32 tempTargetUniChar = 0x0000; 1180 UChar* contextCharToUnicode= NULL; 1181 UBool found; 1182 int i; 1183 int offset = 0; 1184 1185 if ((args->converter == NULL) || (target < args->target) || (source < args->source)) { 1186 *err = U_ILLEGAL_ARGUMENT_ERROR; 1187 return; 1188 } 1189 1190 data = (UConverterDataISCII*)(args->converter->extraInfo); 1191 contextCharToUnicode = &data->contextCharToUnicode; /* contains previous ISCII codepoint visited */ 1192 toUnicodeStatus = (UChar32*)&args->converter->toUnicodeStatus;/* contains the mapping to Unicode of the above codepoint*/ 1193 1194 while (U_SUCCESS(*err) && source<sourceLimit) { 1195 1196 targetUniChar = missingCharMarker; 1197 1198 if (target < targetLimit) { 1199 sourceChar = (unsigned char)*(source)++; 1200 1201 /* look at the post-context preform special processing */ 1202 if (*contextCharToUnicode==ATR) { 1203 1204 /* If we have ATR in *contextCharToUnicode then we need to change our 1205 * state to the Indic Script specified by sourceChar 1206 */ 1207 1208 /* check if the sourceChar is supported script range*/ 1209 if ((uint8_t)(PNJ-sourceChar)<=PNJ-DEV) { 1210 data->currentDeltaToUnicode = (uint16_t)(lookupTable[sourceChar & 0x0F][0] * DELTA); 1211 data->currentMaskToUnicode = (MaskEnum)lookupTable[sourceChar & 0x0F][1]; 1212 } else if (sourceChar==DEF) { 1213 /* switch back to default */ 1214 data->currentDeltaToUnicode = data->defDeltaToUnicode; 1215 data->currentMaskToUnicode = data->defMaskToUnicode; 1216 } else { 1217 if ((sourceChar >= 0x21 && sourceChar <= 0x3F)) { 1218 /* these are display codes consume and continue */ 1219 } else { 1220 *err =U_ILLEGAL_CHAR_FOUND; 1221 /* reset */ 1222 *contextCharToUnicode=NO_CHAR_MARKER; 1223 goto CALLBACK; 1224 } 1225 } 1226 1227 /* reset */ 1228 *contextCharToUnicode=NO_CHAR_MARKER; 1229 1230 continue; 1231 1232 } else if (*contextCharToUnicode==EXT) { 1233 /* check if sourceChar is in 0xA1-0xEE range */ 1234 if ((uint8_t) (EXT_RANGE_END - sourceChar) <= (EXT_RANGE_END - EXT_RANGE_BEGIN)) { 1235 /* We currently support only Anudatta and Devanagari abbreviation sign */ 1236 if (sourceChar==0xBF || sourceChar == 0xB8) { 1237 targetUniChar = (sourceChar==0xBF) ? DEV_ABBR_SIGN : DEV_ANUDATTA; 1238 1239 /* find out if the mapping is valid in this state */ 1240 if (validityTable[(uint8_t)targetUniChar] & data->currentMaskToUnicode) { 1241 *contextCharToUnicode= NO_CHAR_MARKER; 1242 1243 /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */ 1244 if (data->prevToUnicodeStatus) { 1245 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err); 1246 data->prevToUnicodeStatus = 0x0000; 1247 } 1248 /* write to target */ 1249 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),targetUniChar,data->currentDeltaToUnicode,err); 1250 1251 continue; 1252 } 1253 } 1254 /* byte unit is unassigned */ 1255 targetUniChar = missingCharMarker; 1256 *err= U_INVALID_CHAR_FOUND; 1257 } else { 1258 /* only 0xA1 - 0xEE are legal after EXT char */ 1259 *contextCharToUnicode= NO_CHAR_MARKER; 1260 *err = U_ILLEGAL_CHAR_FOUND; 1261 } 1262 goto CALLBACK; 1263 } else if (*contextCharToUnicode==ISCII_INV) { 1264 if (sourceChar==ISCII_HALANT) { 1265 targetUniChar = 0x0020; /* replace with space accoding to Indic FAQ */ 1266 } else { 1267 targetUniChar = ZWJ; 1268 } 1269 1270 /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */ 1271 if (data->prevToUnicodeStatus) { 1272 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err); 1273 data->prevToUnicodeStatus = 0x0000; 1274 } 1275 /* write to target */ 1276 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),targetUniChar,data->currentDeltaToUnicode,err); 1277 /* reset */ 1278 *contextCharToUnicode=NO_CHAR_MARKER; 1279 } 1280 1281 /* look at the pre-context and perform special processing */ 1282 switch (sourceChar) { 1283 case ISCII_INV: 1284 case EXT: /*falls through*/ 1285 case ATR: 1286 *contextCharToUnicode = (UChar)sourceChar; 1287 1288 if (*toUnicodeStatus != missingCharMarker) { 1289 /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */ 1290 if (data->prevToUnicodeStatus) { 1291 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err); 1292 data->prevToUnicodeStatus = 0x0000; 1293 } 1294 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),*toUnicodeStatus,data->currentDeltaToUnicode,err); 1295 *toUnicodeStatus = missingCharMarker; 1296 } 1297 continue; 1298 case ISCII_DANDA: 1299 /* handle double danda*/ 1300 if (*contextCharToUnicode== ISCII_DANDA) { 1301 targetUniChar = DOUBLE_DANDA; 1302 /* clear the context */ 1303 *contextCharToUnicode = NO_CHAR_MARKER; 1304 *toUnicodeStatus = missingCharMarker; 1305 } else { 1306 GET_MAPPING(sourceChar,targetUniChar,data); 1307 *contextCharToUnicode = sourceChar; 1308 } 1309 break; 1310 case ISCII_HALANT: 1311 /* handle explicit halant */ 1312 if (*contextCharToUnicode == ISCII_HALANT) { 1313 targetUniChar = ZWNJ; 1314 /* clear the context */ 1315 *contextCharToUnicode = NO_CHAR_MARKER; 1316 } else { 1317 GET_MAPPING(sourceChar,targetUniChar,data); 1318 *contextCharToUnicode = sourceChar; 1319 } 1320 break; 1321 case 0x0A: 1322 /* fall through */ 1323 case 0x0D: 1324 data->resetToDefaultToUnicode = TRUE; 1325 GET_MAPPING(sourceChar,targetUniChar,data) 1326 ; 1327 *contextCharToUnicode = sourceChar; 1328 break; 1329 1330 case ISCII_VOWEL_SIGN_E: 1331 i=1; 1332 found=FALSE; 1333 for (; i<vowelSignESpecialCases[0][0]; i++) { 1334 if (vowelSignESpecialCases[i][0]==(uint8_t)*contextCharToUnicode) { 1335 targetUniChar=vowelSignESpecialCases[i][1]; 1336 found=TRUE; 1337 break; 1338 } 1339 } 1340 if (found) { 1341 /* find out if the mapping is valid in this state */ 1342 if (validityTable[(uint8_t)targetUniChar] & data->currentMaskToUnicode) { 1343 /*targetUniChar += data->currentDeltaToUnicode ;*/ 1344 *contextCharToUnicode= NO_CHAR_MARKER; 1345 *toUnicodeStatus = missingCharMarker; 1346 break; 1347 } 1348 } 1349 GET_MAPPING(sourceChar,targetUniChar,data); 1350 *contextCharToUnicode = sourceChar; 1351 break; 1352 1353 case ISCII_NUKTA: 1354 /* handle soft halant */ 1355 if (*contextCharToUnicode == ISCII_HALANT) { 1356 targetUniChar = ZWJ; 1357 /* clear the context */ 1358 *contextCharToUnicode = NO_CHAR_MARKER; 1359 break; 1360 } else if (data->currentDeltaToUnicode == PNJ_DELTA && data->contextCharToUnicode == 0xc0) { 1361 /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */ 1362 if (data->prevToUnicodeStatus) { 1363 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err); 1364 data->prevToUnicodeStatus = 0x0000; 1365 } 1366 /* We got here because ISCII_NUKTA was preceded by 0xc0 and we are converting Gurmukhi. 1367 * In that case we must convert (0xc0 0xe9) to (\u0a5c\u0a4d\u0a39). 1368 */ 1369 targetUniChar = PNJ_RRA; 1370 WRITE_TO_TARGET_TO_U(args, source, target, args->offsets, (source-args->source)-2, targetUniChar, 0, err); 1371 if (U_SUCCESS(*err)) { 1372 targetUniChar = PNJ_SIGN_VIRAMA; 1373 WRITE_TO_TARGET_TO_U(args, source, target, args->offsets, (source-args->source)-2, targetUniChar, 0, err); 1374 if (U_SUCCESS(*err)) { 1375 targetUniChar = PNJ_HA; 1376 WRITE_TO_TARGET_TO_U(args, source, target, args->offsets, (source-args->source)-2, targetUniChar, 0, err); 1377 } else { 1378 args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++]= PNJ_HA; 1379 } 1380 } else { 1381 args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++]= PNJ_SIGN_VIRAMA; 1382 args->converter->UCharErrorBuffer[args->converter->UCharErrorBufferLength++]= PNJ_HA; 1383 } 1384 *toUnicodeStatus = missingCharMarker; 1385 data->contextCharToUnicode = NO_CHAR_MARKER; 1386 continue; 1387 } else { 1388 /* try to handle <CHAR> + ISCII_NUKTA special mappings */ 1389 i=1; 1390 found =FALSE; 1391 for (; i<nuktaSpecialCases[0][0]; i++) { 1392 if (nuktaSpecialCases[i][0]==(uint8_t) 1393 *contextCharToUnicode) { 1394 targetUniChar=nuktaSpecialCases[i][1]; 1395 found =TRUE; 1396 break; 1397 } 1398 } 1399 if (found) { 1400 /* find out if the mapping is valid in this state */ 1401 if (validityTable[(uint8_t)targetUniChar] & data->currentMaskToUnicode) { 1402 /*targetUniChar += data->currentDeltaToUnicode ;*/ 1403 *contextCharToUnicode= NO_CHAR_MARKER; 1404 *toUnicodeStatus = missingCharMarker; 1405 if (data->currentDeltaToUnicode == PNJ_DELTA) { 1406 /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */ 1407 if (data->prevToUnicodeStatus) { 1408 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err); 1409 data->prevToUnicodeStatus = 0x0000; 1410 } 1411 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),targetUniChar,data->currentDeltaToUnicode,err); 1412 continue; 1413 } 1414 break; 1415 } 1416 /* else fall through to default */ 1417 } 1418 /* else fall through to default */ 1419 } 1420 default:GET_MAPPING(sourceChar,targetUniChar,data) 1421 ; 1422 *contextCharToUnicode = sourceChar; 1423 break; 1424 } 1425 1426 if (*toUnicodeStatus != missingCharMarker) { 1427 /* Check to make sure that consonant clusters are handled correct for Gurmukhi script. */ 1428 if (data->currentDeltaToUnicode == PNJ_DELTA && data->prevToUnicodeStatus != 0 && uset_contains(PNJ_CONSONANT_SET, data->prevToUnicodeStatus) && 1429 (*toUnicodeStatus + PNJ_DELTA) == PNJ_SIGN_VIRAMA && (targetUniChar + PNJ_DELTA) == data->prevToUnicodeStatus) { 1430 /* Consonant clusters C + HALANT + C should be encoded as ADHAK + C */ 1431 offset = (int)(source-args->source - 3); 1432 tempTargetUniChar = PNJ_ADHAK; /* This is necessary to avoid some compiler warnings. */ 1433 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,offset,tempTargetUniChar,0,err); 1434 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,offset,data->prevToUnicodeStatus,0,err); 1435 data->prevToUnicodeStatus = 0x0000; /* reset the previous unicode code point */ 1436 *toUnicodeStatus = missingCharMarker; 1437 continue; 1438 } else { 1439 /* Write the previous toUnicodeStatus, this was delayed to handle consonant clustering for Gurmukhi script. */ 1440 if (data->prevToUnicodeStatus) { 1441 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -1),data->prevToUnicodeStatus,0,err); 1442 data->prevToUnicodeStatus = 0x0000; 1443 } 1444 /* Check to make sure that Bindi and Tippi are handled correctly for Gurmukhi script. 1445 * If 0xA2 is preceded by a codepoint in the PNJ_BINDI_TIPPI_SET then the target codepoint should be Tippi instead of Bindi. 1446 */ 1447 if (data->currentDeltaToUnicode == PNJ_DELTA && (targetUniChar + PNJ_DELTA) == PNJ_BINDI && uset_contains(PNJ_BINDI_TIPPI_SET, (*toUnicodeStatus + PNJ_DELTA))) { 1448 targetUniChar = PNJ_TIPPI - PNJ_DELTA; 1449 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),*toUnicodeStatus,PNJ_DELTA,err); 1450 } else if (data->currentDeltaToUnicode == PNJ_DELTA && (targetUniChar + PNJ_DELTA) == PNJ_SIGN_VIRAMA && uset_contains(PNJ_CONSONANT_SET, (*toUnicodeStatus + PNJ_DELTA))) { 1451 /* Store the current toUnicodeStatus code point for later handling of consonant cluster in Gurmukhi. */ 1452 data->prevToUnicodeStatus = *toUnicodeStatus + PNJ_DELTA; 1453 } else { 1454 /* write the previously mapped codepoint */ 1455 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source-args->source -2),*toUnicodeStatus,data->currentDeltaToUnicode,err); 1456 } 1457 } 1458 *toUnicodeStatus = missingCharMarker; 1459 } 1460 1461 if (targetUniChar != missingCharMarker) { 1462 /* now save the targetUniChar for delayed write */ 1463 *toUnicodeStatus = (UChar) targetUniChar; 1464 if (data->resetToDefaultToUnicode==TRUE) { 1465 data->currentDeltaToUnicode = data->defDeltaToUnicode; 1466 data->currentMaskToUnicode = data->defMaskToUnicode; 1467 data->resetToDefaultToUnicode=FALSE; 1468 } 1469 } else { 1470 1471 /* we reach here only if targetUniChar == missingCharMarker 1472 * so assign codes to reason and err 1473 */ 1474 *err = U_INVALID_CHAR_FOUND; 1475 CALLBACK: 1476 args->converter->toUBytes[0] = (uint8_t) sourceChar; 1477 args->converter->toULength = 1; 1478 break; 1479 } 1480 1481 } else { 1482 *err =U_BUFFER_OVERFLOW_ERROR; 1483 break; 1484 } 1485 } 1486 1487 if (U_SUCCESS(*err) && args->flush && source == sourceLimit) { 1488 /* end of the input stream */ 1489 UConverter *cnv = args->converter; 1490 1491 if (*contextCharToUnicode==ATR || *contextCharToUnicode==EXT || *contextCharToUnicode==ISCII_INV) { 1492 /* set toUBytes[] */ 1493 cnv->toUBytes[0] = (uint8_t)*contextCharToUnicode; 1494 cnv->toULength = 1; 1495 1496 /* avoid looping on truncated sequences */ 1497 *contextCharToUnicode = NO_CHAR_MARKER; 1498 } else { 1499 cnv->toULength = 0; 1500 } 1501 1502 if (*toUnicodeStatus != missingCharMarker) { 1503 /* output a remaining target character */ 1504 WRITE_TO_TARGET_TO_U(args,source,target,args->offsets,(source - args->source -1),*toUnicodeStatus,data->currentDeltaToUnicode,err); 1505 *toUnicodeStatus = missingCharMarker; 1506 } 1507 } 1508 1509 args->target = target; 1510 args->source = source; 1511 } 1512 1513 /* structure for SafeClone calculations */ 1514 struct cloneISCIIStruct { 1515 UConverter cnv; 1516 UConverterDataISCII mydata; 1517 }; 1518 1519 static UConverter * 1520 _ISCII_SafeClone(const UConverter *cnv, 1521 void *stackBuffer, 1522 int32_t *pBufferSize, 1523 UErrorCode *status) 1524 { 1525 struct cloneISCIIStruct * localClone; 1526 int32_t bufferSizeNeeded = sizeof(struct cloneISCIIStruct); 1527 1528 if (U_FAILURE(*status)) { 1529 return 0; 1530 } 1531 1532 if (*pBufferSize == 0) { /* 'preflighting' request - set needed size into *pBufferSize */ 1533 *pBufferSize = bufferSizeNeeded; 1534 return 0; 1535 } 1536 1537 localClone = (struct cloneISCIIStruct *)stackBuffer; 1538 /* ucnv.c/ucnv_safeClone() copied the main UConverter already */ 1539 1540 uprv_memcpy(&localClone->mydata, cnv->extraInfo, sizeof(UConverterDataISCII)); 1541 localClone->cnv.extraInfo = &localClone->mydata; 1542 localClone->cnv.isExtraLocal = TRUE; 1543 1544 return &localClone->cnv; 1545 } 1546 1547 static void 1548 _ISCIIGetUnicodeSet(const UConverter *cnv, 1549 const USetAdder *sa, 1550 UConverterUnicodeSet which, 1551 UErrorCode *pErrorCode) 1552 { 1553 int32_t idx, script; 1554 uint8_t mask; 1555 1556 /* Since all ISCII versions allow switching to other ISCII 1557 scripts, we add all roundtrippable characters to this set. */ 1558 sa->addRange(sa->set, 0, ASCII_END); 1559 for (script = DEVANAGARI; script <= MALAYALAM; script++) { 1560 mask = (uint8_t)(lookupInitialData[script].maskEnum); 1561 for (idx = 0; idx < DELTA; idx++) { 1562 /* added check for TELUGU character */ 1563 if ((validityTable[idx] & mask) || (script==TELUGU && idx==0x31)) { 1564 sa->add(sa->set, idx + (script * DELTA) + INDIC_BLOCK_BEGIN); 1565 } 1566 } 1567 } 1568 sa->add(sa->set, DANDA); 1569 sa->add(sa->set, DOUBLE_DANDA); 1570 sa->add(sa->set, ZWNJ); 1571 sa->add(sa->set, ZWJ); 1572 } 1573 1574 static const UConverterImpl _ISCIIImpl={ 1575 1576 UCNV_ISCII, 1577 1578 NULL, 1579 NULL, 1580 1581 _ISCIIOpen, 1582 _ISCIIClose, 1583 _ISCIIReset, 1584 1585 UConverter_toUnicode_ISCII_OFFSETS_LOGIC, 1586 UConverter_toUnicode_ISCII_OFFSETS_LOGIC, 1587 UConverter_fromUnicode_ISCII_OFFSETS_LOGIC, 1588 UConverter_fromUnicode_ISCII_OFFSETS_LOGIC, 1589 NULL, 1590 1591 NULL, 1592 _ISCIIgetName, 1593 NULL, 1594 _ISCII_SafeClone, 1595 _ISCIIGetUnicodeSet 1596 }; 1597 1598 static const UConverterStaticData _ISCIIStaticData={ 1599 sizeof(UConverterStaticData), 1600 "ISCII", 1601 0, 1602 UCNV_IBM, 1603 UCNV_ISCII, 1604 1, 1605 4, 1606 { 0x1a, 0, 0, 0 }, 1607 0x1, 1608 FALSE, 1609 FALSE, 1610 0x0, 1611 0x0, 1612 { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }, /* reserved */ 1613 1614 }; 1615 1616 const UConverterSharedData _ISCIIData={ 1617 sizeof(UConverterSharedData), 1618 ~((uint32_t) 0), 1619 NULL, 1620 NULL, 1621 &_ISCIIStaticData, 1622 FALSE, 1623 &_ISCIIImpl, 1624 0 1625 }; 1626 1627 #endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */ 1628
