1 57 58 package org.enhydra.apache.xerces.utils.regex; 59 60 61 62 import java.util.Hashtable ; 63 import java.util.Locale ; 64 65 70 class ParserForXMLSchema extends RegexParser { 71 72 public ParserForXMLSchema() { 73 } 75 public ParserForXMLSchema(Locale locale) { 76 } 78 79 Token processCaret() throws ParseException { 80 this.next(); 81 return Token.createChar('^'); 82 } 83 Token processDollar() throws ParseException { 84 this.next(); 85 return Token.createChar('$'); 86 } 87 Token processLookahead() throws ParseException { 88 throw ex("parser.process.1", this.offset); 89 } 90 Token processNegativelookahead() throws ParseException { 91 throw ex("parser.process.1", this.offset); 92 } 93 Token processLookbehind() throws ParseException { 94 throw ex("parser.process.1", this.offset); 95 } 96 Token processNegativelookbehind() throws ParseException { 97 throw ex("parser.process.1", this.offset); 98 } 99 Token processBacksolidus_A() throws ParseException { 100 throw ex("parser.process.1", this.offset); 101 } 102 Token processBacksolidus_Z() throws ParseException { 103 throw ex("parser.process.1", this.offset); 104 } 105 Token processBacksolidus_z() throws ParseException { 106 throw ex("parser.process.1", this.offset); 107 } 108 Token processBacksolidus_b() throws ParseException { 109 throw ex("parser.process.1", this.offset); 110 } 111 Token processBacksolidus_B() throws ParseException { 112 throw ex("parser.process.1", this.offset); 113 } 114 Token processBacksolidus_lt() throws ParseException { 115 throw ex("parser.process.1", this.offset); 116 } 117 Token processBacksolidus_gt() throws ParseException { 118 throw ex("parser.process.1", this.offset); 119 } 120 Token processStar(Token tok) throws ParseException { 121 this.next(); 122 return Token.createClosure(tok); 123 } 124 Token processPlus(Token tok) throws ParseException { 125 this.next(); 127 return Token.createConcat(tok, Token.createClosure(tok)); 128 } 129 Token processQuestion(Token tok) throws ParseException { 130 this.next(); 132 Token par = Token.createUnion(); 133 par.addChild(tok); 134 par.addChild(Token.createEmpty()); 135 return par; 136 } 137 boolean checkQuestion(int off) { 138 return false; 139 } 140 Token processParen() throws ParseException { 141 this.next(); 142 Token tok = Token.createParen(this.parseRegex(), 0); 143 if (this.read() != super.T_RPAREN) throw ex("parser.factor.1", this.offset-1); 144 this.next(); return tok; 146 } 147 Token processParen2() throws ParseException { 148 throw ex("parser.process.1", this.offset); 149 } 150 Token processCondition() throws ParseException { 151 throw ex("parser.process.1", this.offset); 152 } 153 Token processModifiers() throws ParseException { 154 throw ex("parser.process.1", this.offset); 155 } 156 Token processIndependent() throws ParseException { 157 throw ex("parser.process.1", this.offset); 158 } 159 Token processBacksolidus_c() throws ParseException { 160 this.next(); 161 return this.getTokenForShorthand('c'); 162 } 163 Token processBacksolidus_C() throws ParseException { 164 this.next(); 165 return this.getTokenForShorthand('C'); 166 } 167 Token processBacksolidus_i() throws ParseException { 168 this.next(); 169 return this.getTokenForShorthand('i'); 170 } 171 Token processBacksolidus_I() throws ParseException { 172 this.next(); 173 return this.getTokenForShorthand('I'); 174 } 175 Token processBacksolidus_g() throws ParseException { 176 throw this.ex("parser.process.1", this.offset-2); 177 } 178 Token processBacksolidus_X() throws ParseException { 179 throw ex("parser.process.1", this.offset-2); 180 } 181 Token processBackreference() throws ParseException { 182 throw ex("parser.process.1", this.offset-4); 183 } 184 185 int processCIinCharacterClass(RangeToken tok, int c) { 186 tok.mergeRanges(this.getTokenForShorthand(c)); 187 return -1; 188 } 189 190 191 208 protected RangeToken parseCharacterClass(boolean useNrange) throws ParseException { 209 this.setContext(S_INBRACKETS); 210 this.next(); boolean nrange = false; 212 RangeToken base = null; 213 RangeToken tok; 214 if (this.read() == T_CHAR && this.chardata == '^') { 215 nrange = true; 216 this.next(); base = Token.createRange(); 218 base.addRange(0, Token.UTF16_MAX); 219 tok = Token.createRange(); 220 } else { 221 tok = Token.createRange(); 222 } 223 int type; 224 boolean firstloop = true; 225 while ((type = this.read()) != T_EOF) { if (type == T_CHAR && this.chardata == ']' && !firstloop) { 228 if (nrange) { 229 base.subtractRanges(tok); 230 tok = base; 231 } 232 break; 233 } 234 int c = this.chardata; 235 boolean end = false; 236 if (type == T_BACKSOLIDUS) { 237 switch (c) { 238 case 'd': case 'D': 239 case 'w': case 'W': 240 case 's': case 'S': 241 tok.mergeRanges(this.getTokenForShorthand(c)); 242 end = true; 243 break; 244 245 case 'i': case 'I': 246 case 'c': case 'C': 247 c = this.processCIinCharacterClass(tok, c); 248 if (c < 0) end = true; 249 break; 250 251 case 'p': 252 case 'P': 253 int pstart = this.offset; 254 RangeToken tok2 = this.processBacksolidus_pP(c); 255 if (tok2 == null) throw this.ex("parser.atom.5", pstart); 256 tok.mergeRanges(tok2); 257 end = true; 258 break; 259 260 default: 261 c = this.decodeEscaped(); 262 } } else if (type == T_XMLSCHEMA_CC_SUBTRACTION && !firstloop) { 265 if (nrange) { 267 base.subtractRanges(tok); 268 tok = base; 269 } 270 RangeToken range2 = this.parseCharacterClass(false); 271 tok.subtractRanges(range2); 272 if (this.read() != T_CHAR || this.chardata != ']') 273 throw this.ex("parser.cc.5", this.offset); 274 break; } 276 277 this.next(); 278 if (!end) { if (type == T_CHAR) { 280 if (c == '[') throw this.ex("parser.cc.6", this.offset-2); 281 if (c == ']') throw this.ex("parser.cc.7", this.offset-2); 282 } 283 if (this.read() != T_CHAR || this.chardata != '-') { tok.addRange(c, c); 285 } else { this.next(); if ((type = this.read()) == T_EOF) throw this.ex("parser.cc.2", this.offset); 289 if (type == T_CHAR && this.chardata == ']') { 291 tok.addRange(c, c); 292 tok.addRange('-', '-'); 293 } 294 else if (type == T_XMLSCHEMA_CC_SUBTRACTION) { 296 tok.addRange(c, c); 297 tok.addRange('-', '-'); 298 } else { 299 int rangeend = this.chardata; 300 if (type == T_CHAR) { 301 if (rangeend == '[') throw this.ex("parser.cc.6", this.offset-1); 302 if (rangeend == ']') throw this.ex("parser.cc.7", this.offset-1); 303 if (rangeend == '-') throw new RuntimeException ("Invalid character '-' in the middle of positive character range"); 304 } 305 if (type == T_BACKSOLIDUS) 306 rangeend = this.decodeEscaped(); 307 this.next(); 308 if (c > rangeend) { 309 throw new RuntimeException ("The range end code point '"+(char) rangeend 310 + "' is less than the start code point '" +(char)c +"'"); 311 } 312 tok.addRange(c, rangeend); 313 } 314 } 315 } 316 firstloop = false; 317 } 318 if (this.read() == T_EOF) 319 throw this.ex("parser.cc.2", this.offset); 320 tok.sortRanges(); 321 tok.compactRanges(); 322 this.setContext(S_NORMAL); 324 this.next(); 326 return tok; 327 } 328 329 protected RangeToken parseSetOperations() throws ParseException { 330 throw this.ex("parser.process.1", this.offset); 331 } 332 333 Token getTokenForShorthand(int ch) { 334 switch (ch) { 335 case 'd': 336 return ParserForXMLSchema.getRange("xml:isDigit", true); 337 case 'D': 338 return ParserForXMLSchema.getRange("xml:isDigit", false); 339 case 'w': 340 return ParserForXMLSchema.getRange("xml:isWord", true); 341 case 'W': 342 return ParserForXMLSchema.getRange("xml:isWord", false); 343 case 's': 344 return ParserForXMLSchema.getRange("xml:isSpace", true); 345 case 'S': 346 return ParserForXMLSchema.getRange("xml:isSpace", false); 347 case 'c': 348 return ParserForXMLSchema.getRange("xml:isNameChar", true); 349 case 'C': 350 return ParserForXMLSchema.getRange("xml:isNameChar", false); 351 case 'i': 352 return ParserForXMLSchema.getRange("xml:isInitialNameChar", true); 353 case 'I': 354 return ParserForXMLSchema.getRange("xml:isInitialNameChar", false); 355 default: 356 throw new RuntimeException ("Internal Error: shorthands: \\u"+Integer.toString(ch, 16)); 357 } 358 } 359 360 int decodeEscaped() throws ParseException { 361 if (this.read() != T_BACKSOLIDUS) throw ex("parser.next.1", this.offset-1); 362 int c = this.chardata; 363 switch (c) { 364 case 'n': c = '\n'; break; case 'r': c = '\r'; break; case 't': c = '\t'; break; 368 case '\\': 370 case '|': 371 case '.': 372 case '^': 373 case '-': 374 case '?': 375 case '*': 376 case '+': 377 case '{': 378 case '}': 379 case '(': 380 case ')': 381 case '[': 382 case ']': 383 break; 384 default: 385 throw new RuntimeException ("Regular expression: unrecognized character '\\"+(char)c+"' in charRange"); 386 } 387 return c; 388 } 389 390 static protected Hashtable ranges = null; 391 static protected Hashtable ranges2 = null; 392 static synchronized protected RangeToken getRange(String name, boolean positive) { 393 if (ranges == null) { 394 ranges = new Hashtable (); 395 ranges2 = new Hashtable (); 396 397 Token tok = Token.createRange(); 398 setupRange(tok, SPACES); 399 ranges.put("xml:isSpace", tok); 400 ranges2.put("xml:isSpace", Token.complementRanges(tok)); 401 402 tok = Token.createRange(); 403 setupRange(tok, DIGITS); 404 ranges.put("xml:isDigit", tok); 405 ranges2.put("xml:isDigit", Token.complementRanges(tok)); 406 407 tok = Token.createRange(); 408 setupRange(tok, DIGITS); 409 ranges.put("xml:isDigit", tok); 410 ranges2.put("xml:isDigit", Token.complementRanges(tok)); 411 412 tok = Token.createRange(); 413 setupRange(tok, LETTERS); 414 tok.mergeRanges((Token)ranges.get("xml:isDigit")); 415 ranges.put("xml:isWord", tok); 416 ranges2.put("xml:isWord", Token.complementRanges(tok)); 417 418 tok = Token.createRange(); 419 setupRange(tok, NAMECHARS); 420 ranges.put("xml:isNameChar", tok); 421 ranges2.put("xml:isNameChar", Token.complementRanges(tok)); 422 423 tok = Token.createRange(); 424 setupRange(tok, LETTERS); 425 tok.addRange('_', '_'); 426 tok.addRange(':', ':'); 427 ranges.put("xml:isInitialNameChar", tok); 428 ranges2.put("xml:isInitialNameChar", Token.complementRanges(tok)); 429 } 430 RangeToken tok = positive ? (RangeToken)ranges.get(name) 431 : (RangeToken)ranges2.get(name); 432 return tok; 433 } 434 435 static void setupRange(Token range, String src) { 436 int len = src.length(); 437 for (int i = 0; i < len; i += 2) 438 range.addRange(src.charAt(i), src.charAt(i+1)); 439 } 440 441 private static final String SPACES = "\t\n\r\r "; 442 private static final String NAMECHARS = 443 "\u002d\u002e\u0030\u003a\u0041\u005a\u005f\u005f\u0061\u007a\u00b7\u00b7\u00c0\u00d6" 444 +"\u00d8\u00f6\u00f8\u0131\u0134\u013e\u0141\u0148\u014a\u017e\u0180\u01c3\u01cd\u01f0" 445 +"\u01f4\u01f5\u01fa\u0217\u0250\u02a8\u02bb\u02c1\u02d0\u02d1\u0300\u0345\u0360\u0361" 446 +"\u0386\u038a\u038c\u038c\u038e\u03a1\u03a3\u03ce\u03d0\u03d6\u03da\u03da\u03dc\u03dc" 447 +"\u03de\u03de\u03e0\u03e0\u03e2\u03f3\u0401\u040c\u040e\u044f\u0451\u045c\u045e\u0481" 448 +"\u0483\u0486\u0490\u04c4\u04c7\u04c8\u04cb\u04cc\u04d0\u04eb\u04ee\u04f5\u04f8\u04f9" 449 +"\u0531\u0556\u0559\u0559\u0561\u0586\u0591\u05a1\u05a3\u05b9\u05bb\u05bd\u05bf\u05bf" 450 +"\u05c1\u05c2\u05c4\u05c4\u05d0\u05ea\u05f0\u05f2\u0621\u063a\u0640\u0652\u0660\u0669" 451 +"\u0670\u06b7\u06ba\u06be\u06c0\u06ce\u06d0\u06d3\u06d5\u06e8\u06ea\u06ed\u06f0\u06f9" 452 +"\u0901\u0903\u0905\u0939\u093c\u094d\u0951\u0954\u0958\u0963\u0966\u096f\u0981\u0983" 453 +"\u0985\u098c\u098f\u0990\u0993\u09a8\u09aa\u09b0\u09b2\u09b2\u09b6\u09b9\u09bc\u09bc" 454 +"\u09be\u09c4\u09c7\u09c8\u09cb\u09cd\u09d7\u09d7\u09dc\u09dd\u09df\u09e3\u09e6\u09f1" 455 +"\u0a02\u0a02\u0a05\u0a0a\u0a0f\u0a10\u0a13\u0a28\u0a2a\u0a30\u0a32\u0a33\u0a35\u0a36" 456 +"\u0a38\u0a39\u0a3c\u0a3c\u0a3e\u0a42\u0a47\u0a48\u0a4b\u0a4d\u0a59\u0a5c\u0a5e\u0a5e" 457 +"\u0a66\u0a74\u0a81\u0a83\u0a85\u0a8b\u0a8d\u0a8d\u0a8f\u0a91\u0a93\u0aa8\u0aaa\u0ab0" 458 +"\u0ab2\u0ab3\u0ab5\u0ab9\u0abc\u0ac5\u0ac7\u0ac9\u0acb\u0acd\u0ae0\u0ae0\u0ae6\u0aef" 459 +"\u0b01\u0b03\u0b05\u0b0c\u0b0f\u0b10\u0b13\u0b28\u0b2a\u0b30\u0b32\u0b33\u0b36\u0b39" 460 +"\u0b3c\u0b43\u0b47\u0b48\u0b4b\u0b4d\u0b56\u0b57\u0b5c\u0b5d\u0b5f\u0b61\u0b66\u0b6f" 461 +"\u0b82\u0b83\u0b85\u0b8a\u0b8e\u0b90\u0b92\u0b95\u0b99\u0b9a\u0b9c\u0b9c\u0b9e\u0b9f" 462 +"\u0ba3\u0ba4\u0ba8\u0baa\u0bae\u0bb5\u0bb7\u0bb9\u0bbe\u0bc2\u0bc6\u0bc8\u0bca\u0bcd" 463 +"\u0bd7\u0bd7\u0be7\u0bef\u0c01\u0c03\u0c05\u0c0c\u0c0e\u0c10\u0c12\u0c28\u0c2a\u0c33" 464 +"\u0c35\u0c39\u0c3e\u0c44\u0c46\u0c48\u0c4a\u0c4d\u0c55\u0c56\u0c60\u0c61\u0c66\u0c6f" 465 +"\u0c82\u0c83\u0c85\u0c8c\u0c8e\u0c90\u0c92\u0ca8\u0caa\u0cb3\u0cb5\u0cb9\u0cbe\u0cc4" 466 +"\u0cc6\u0cc8\u0cca\u0ccd\u0cd5\u0cd6\u0cde\u0cde\u0ce0\u0ce1\u0ce6\u0cef\u0d02\u0d03" 467 +"\u0d05\u0d0c\u0d0e\u0d10\u0d12\u0d28\u0d2a\u0d39\u0d3e\u0d43\u0d46\u0d48\u0d4a\u0d4d" 468 +"\u0d57\u0d57\u0d60\u0d61\u0d66\u0d6f\u0e01\u0e2e\u0e30\u0e3a\u0e40\u0e4e\u0e50\u0e59" 469 +"\u0e81\u0e82\u0e84\u0e84\u0e87\u0e88\u0e8a\u0e8a\u0e8d\u0e8d\u0e94\u0e97\u0e99\u0e9f" 470 +"\u0ea1\u0ea3\u0ea5\u0ea5\u0ea7\u0ea7\u0eaa\u0eab\u0ead\u0eae\u0eb0\u0eb9\u0ebb\u0ebd" 471 +"\u0ec0\u0ec4\u0ec6\u0ec6\u0ec8\u0ecd\u0ed0\u0ed9\u0f18\u0f19\u0f20\u0f29\u0f35\u0f35" 472 +"\u0f37\u0f37\u0f39\u0f39\u0f3e\u0f47\u0f49\u0f69\u0f71\u0f84\u0f86\u0f8b\u0f90\u0f95" 473 +"\u0f97\u0f97\u0f99\u0fad\u0fb1\u0fb7\u0fb9\u0fb9\u10a0\u10c5\u10d0\u10f6\u1100\u1100" 474 +"\u1102\u1103\u1105\u1107\u1109\u1109\u110b\u110c\u110e\u1112\u113c\u113c\u113e\u113e" 475 +"\u1140\u1140\u114c\u114c\u114e\u114e\u1150\u1150\u1154\u1155\u1159\u1159\u115f\u1161" 476 +"\u1163\u1163\u1165\u1165\u1167\u1167\u1169\u1169\u116d\u116e\u1172\u1173\u1175\u1175" 477 +"\u119e\u119e\u11a8\u11a8\u11ab\u11ab\u11ae\u11af\u11b7\u11b8\u11ba\u11ba\u11bc\u11c2" 478 +"\u11eb\u11eb\u11f0\u11f0\u11f9\u11f9\u1e00\u1e9b\u1ea0\u1ef9\u1f00\u1f15\u1f18\u1f1d" 479 +"\u1f20\u1f45\u1f48\u1f4d\u1f50\u1f57\u1f59\u1f59\u1f5b\u1f5b\u1f5d\u1f5d\u1f5f\u1f7d" 480 +"\u1f80\u1fb4\u1fb6\u1fbc\u1fbe\u1fbe\u1fc2\u1fc4\u1fc6\u1fcc\u1fd0\u1fd3\u1fd6\u1fdb" 481 +"\u1fe0\u1fec\u1ff2\u1ff4\u1ff6\u1ffc\u20d0\u20dc\u20e1\u20e1\u2126\u2126\u212a\u212b" 482 +"\u212e\u212e\u2180\u2182\u3005\u3005\u3007\u3007\u3021\u302f\u3031\u3035\u3041\u3094" 483 +"\u3099\u309a\u309d\u309e\u30a1\u30fa\u30fc\u30fe\u3105\u312c\u4e00\u9fa5\uac00\ud7a3" 484 +""; 485 private static final String LETTERS = 486 "\u0041\u005a\u0061\u007a\u00c0\u00d6\u00d8\u00f6\u00f8\u0131\u0134\u013e\u0141\u0148" 487 +"\u014a\u017e\u0180\u01c3\u01cd\u01f0\u01f4\u01f5\u01fa\u0217\u0250\u02a8\u02bb\u02c1" 488 +"\u0386\u0386\u0388\u038a\u038c\u038c\u038e\u03a1\u03a3\u03ce\u03d0\u03d6\u03da\u03da" 489 +"\u03dc\u03dc\u03de\u03de\u03e0\u03e0\u03e2\u03f3\u0401\u040c\u040e\u044f\u0451\u045c" 490 +"\u045e\u0481\u0490\u04c4\u04c7\u04c8\u04cb\u04cc\u04d0\u04eb\u04ee\u04f5\u04f8\u04f9" 491 +"\u0531\u0556\u0559\u0559\u0561\u0586\u05d0\u05ea\u05f0\u05f2\u0621\u063a\u0641\u064a" 492 +"\u0671\u06b7\u06ba\u06be\u06c0\u06ce\u06d0\u06d3\u06d5\u06d5\u06e5\u06e6\u0905\u0939" 493 +"\u093d\u093d\u0958\u0961\u0985\u098c\u098f\u0990\u0993\u09a8\u09aa\u09b0\u09b2\u09b2" 494 +"\u09b6\u09b9\u09dc\u09dd\u09df\u09e1\u09f0\u09f1\u0a05\u0a0a\u0a0f\u0a10\u0a13\u0a28" 495 +"\u0a2a\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59\u0a5c\u0a5e\u0a5e\u0a72\u0a74" 496 +"\u0a85\u0a8b\u0a8d\u0a8d\u0a8f\u0a91\u0a93\u0aa8\u0aaa\u0ab0\u0ab2\u0ab3\u0ab5\u0ab9" 497 +"\u0abd\u0abd\u0ae0\u0ae0\u0b05\u0b0c\u0b0f\u0b10\u0b13\u0b28\u0b2a\u0b30\u0b32\u0b33" 498 +"\u0b36\u0b39\u0b3d\u0b3d\u0b5c\u0b5d\u0b5f\u0b61\u0b85\u0b8a\u0b8e\u0b90\u0b92\u0b95" 499 +"\u0b99\u0b9a\u0b9c\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8\u0baa\u0bae\u0bb5\u0bb7\u0bb9" 500 +"\u0c05\u0c0c\u0c0e\u0c10\u0c12\u0c28\u0c2a\u0c33\u0c35\u0c39\u0c60\u0c61\u0c85\u0c8c" 501 +"\u0c8e\u0c90\u0c92\u0ca8\u0caa\u0cb3\u0cb5\u0cb9\u0cde\u0cde\u0ce0\u0ce1\u0d05\u0d0c" 502 +"\u0d0e\u0d10\u0d12\u0d28\u0d2a\u0d39\u0d60\u0d61\u0e01\u0e2e\u0e30\u0e30\u0e32\u0e33" 503 +"\u0e40\u0e45\u0e81\u0e82\u0e84\u0e84\u0e87\u0e88\u0e8a\u0e8a\u0e8d\u0e8d\u0e94\u0e97" 504 +"\u0e99\u0e9f\u0ea1\u0ea3\u0ea5\u0ea5\u0ea7\u0ea7\u0eaa\u0eab\u0ead\u0eae\u0eb0\u0eb0" 505 +"\u0eb2\u0eb3\u0ebd\u0ebd\u0ec0\u0ec4\u0f40\u0f47\u0f49\u0f69\u10a0\u10c5\u10d0\u10f6" 506 +"\u1100\u1100\u1102\u1103\u1105\u1107\u1109\u1109\u110b\u110c\u110e\u1112\u113c\u113c" 507 +"\u113e\u113e\u1140\u1140\u114c\u114c\u114e\u114e\u1150\u1150\u1154\u1155\u1159\u1159" 508 +"\u115f\u1161\u1163\u1163\u1165\u1165\u1167\u1167\u1169\u1169\u116d\u116e\u1172\u1173" 509 +"\u1175\u1175\u119e\u119e\u11a8\u11a8\u11ab\u11ab\u11ae\u11af\u11b7\u11b8\u11ba\u11ba" 510 +"\u11bc\u11c2\u11eb\u11eb\u11f0\u11f0\u11f9\u11f9\u1e00\u1e9b\u1ea0\u1ef9\u1f00\u1f15" 511 +"\u1f18\u1f1d\u1f20\u1f45\u1f48\u1f4d\u1f50\u1f57\u1f59\u1f59\u1f5b\u1f5b\u1f5d\u1f5d" 512 +"\u1f5f\u1f7d\u1f80\u1fb4\u1fb6\u1fbc\u1fbe\u1fbe\u1fc2\u1fc4\u1fc6\u1fcc\u1fd0\u1fd3" 513 +"\u1fd6\u1fdb\u1fe0\u1fec\u1ff2\u1ff4\u1ff6\u1ffc\u2126\u2126\u212a\u212b\u212e\u212e" 514 +"\u2180\u2182\u3007\u3007\u3021\u3029\u3041\u3094\u30a1\u30fa\u3105\u312c\u4e00\u9fa5" 515 +"\uac00\ud7a3"; 516 private static final String DIGITS = 517 "\u0030\u0039\u0660\u0669\u06F0\u06F9\u0966\u096F\u09E6\u09EF\u0A66\u0A6F\u0AE6\u0AEF" 518 +"\u0B66\u0B6F\u0BE7\u0BEF\u0C66\u0C6F\u0CE6\u0CEF\u0D66\u0D6F\u0E50\u0E59\u0ED0\u0ED9" 519 +"\u0F20\u0F29"; 520 } 521 | Popular Tags |