1 /* 2 * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.awt.font; 27 28 import java.io.IOException; 29 import java.io.ObjectOutputStream; 30 import java.util.Arrays; 31 import java.util.Comparator; 32 import java.util.EnumSet; 33 import java.util.Set; 34 import jdk.internal.misc.SharedSecrets; 35 36 /** 37 * The {@code NumericShaper} class is used to convert Latin-1 (European) 38 * digits to other Unicode decimal digits. Users of this class will 39 * primarily be people who wish to present data using 40 * national digit shapes, but find it more convenient to represent the 41 * data internally using Latin-1 (European) digits. This does not 42 * interpret the deprecated numeric shape selector character (U+206E). 43 * <p> 44 * Instances of {@code NumericShaper} are typically applied 45 * as attributes to text with the 46 * {@link TextAttribute#NUMERIC_SHAPING NUMERIC_SHAPING} attribute 47 * of the {@code TextAttribute} class. 48 * For example, this code snippet causes a {@code TextLayout} to 49 * shape European digits to Arabic in an Arabic context:<br> 50 * <blockquote><pre> 51 * Map map = new HashMap(); 52 * map.put(TextAttribute.NUMERIC_SHAPING, 53 * NumericShaper.getContextualShaper(NumericShaper.ARABIC)); 54 * FontRenderContext frc = ...; 55 * TextLayout layout = new TextLayout(text, map, frc); 56 * layout.draw(g2d, x, y); 57 * </pre></blockquote> 58 * <br> 59 * It is also possible to perform numeric shaping explicitly using instances 60 * of {@code NumericShaper}, as this code snippet demonstrates:<br> 61 * <blockquote><pre> 62 * char[] text = ...; 63 * // shape all EUROPEAN digits (except zero) to ARABIC digits 64 * NumericShaper shaper = NumericShaper.getShaper(NumericShaper.ARABIC); 65 * shaper.shape(text, start, count); 66 * 67 * // shape European digits to ARABIC digits if preceding text is Arabic, or 68 * // shape European digits to TAMIL digits if preceding text is Tamil, or 69 * // leave European digits alone if there is no preceding text, or 70 * // preceding text is neither Arabic nor Tamil 71 * NumericShaper shaper = 72 * NumericShaper.getContextualShaper(NumericShaper.ARABIC | 73 * NumericShaper.TAMIL, 74 * NumericShaper.EUROPEAN); 75 * shaper.shape(text, start, count); 76 * </pre></blockquote> 77 * 78 * <p><b>Bit mask- and enum-based Unicode ranges</b></p> 79 * 80 * <p>This class supports two different programming interfaces to 81 * represent Unicode ranges for script-specific digits: bit 82 * mask-based ones, such as {@link #ARABIC NumericShaper.ARABIC}, and 83 * enum-based ones, such as {@link NumericShaper.Range#ARABIC}. 84 * Multiple ranges can be specified by ORing bit mask-based constants, 85 * such as: 86 * <blockquote><pre> 87 * NumericShaper.ARABIC | NumericShaper.TAMIL 88 * </pre></blockquote> 89 * or creating a {@code Set} with the {@link NumericShaper.Range} 90 * constants, such as: 91 * <blockquote><pre> 92 * EnumSet.of(NumericShaper.Range.ARABIC, NumericShaper.Range.TAMIL) 93 * </pre></blockquote> 94 * The enum-based ranges are a super set of the bit mask-based ones. 95 * 96 * <p>If the two interfaces are mixed (including serialization), 97 * Unicode range values are mapped to their counterparts where such 98 * mapping is possible, such as {@code NumericShaper.Range.ARABIC} 99 * from/to {@code NumericShaper.ARABIC}. If any unmappable range 100 * values are specified, such as {@code NumericShaper.Range.BALINESE}, 101 * those ranges are ignored. 102 * 103 * <p><b>Decimal Digits Precedence</b></p> 104 * 105 * <p>A Unicode range may have more than one set of decimal digits. If 106 * multiple decimal digits sets are specified for the same Unicode 107 * range, one of the sets will take precedence as follows. 108 * 109 * <table class="plain"> 110 * <caption>NumericShaper constants precedence</caption> 111 * <thead> 112 * <tr> 113 * <th scope="col">Unicode Range 114 * <th scope="col">{@code NumericShaper} Constants 115 * <th scope="col">Precedence 116 * </thead> 117 * <tbody> 118 * <tr> 119 * <th scope="row" rowspan="2">Arabic 120 * <td>{@link NumericShaper#ARABIC NumericShaper.ARABIC} 121 * <br> 122 * {@link NumericShaper#EASTERN_ARABIC NumericShaper.EASTERN_ARABIC} 123 * <td>{@link NumericShaper#EASTERN_ARABIC NumericShaper.EASTERN_ARABIC} 124 * </tr> 125 * <tr> 126 * <th scope="row">{@link NumericShaper.Range#ARABIC} 127 * <br> 128 * {@link NumericShaper.Range#EASTERN_ARABIC} 129 * <td>{@link NumericShaper.Range#EASTERN_ARABIC} 130 * <tr> 131 * <th scope="row">Tai Tham 132 * <td>{@link NumericShaper.Range#TAI_THAM_HORA} 133 * <br> 134 * {@link NumericShaper.Range#TAI_THAM_THAM} 135 * <td>{@link NumericShaper.Range#TAI_THAM_THAM} 136 * </tbody> 137 * </table> 138 * 139 * @since 1.4 140 */ 141 public final class NumericShaper implements java.io.Serializable { 142 143 // For access from java.text.Bidi 144 static { 145 if (SharedSecrets.getJavaAWTFontAccess() == null) { 146 SharedSecrets.setJavaAWTFontAccess(new JavaAWTFontAccessImpl()); 147 } 148 } 149 150 /** 151 * A {@code NumericShaper.Range} represents a Unicode range of a 152 * script having its own decimal digits. For example, the {@link 153 * NumericShaper.Range#THAI} range has the Thai digits, THAI DIGIT 154 * ZERO (U+0E50) to THAI DIGIT NINE (U+0E59). 155 * 156 * <p>The {@code Range} enum replaces the traditional bit 157 * mask-based values (e.g., {@link NumericShaper#ARABIC}), and 158 * supports more Unicode ranges than the bit mask-based ones. For 159 * example, the following code using the bit mask: 160 * <blockquote><pre> 161 * NumericShaper.getContextualShaper(NumericShaper.ARABIC | 162 * NumericShaper.TAMIL, 163 * NumericShaper.EUROPEAN); 164 * </pre></blockquote> 165 * can be written using this enum as: 166 * <blockquote><pre> 167 * NumericShaper.getContextualShaper(EnumSet.of( 168 * NumericShaper.Range.ARABIC, 169 * NumericShaper.Range.TAMIL), 170 * NumericShaper.Range.EUROPEAN); 171 * </pre></blockquote> 172 * 173 * @since 1.7 174 */ 175 public static enum Range { 176 // The order of EUROPEAN to MOGOLIAN must be consistent 177 // with the bitmask-based constants. 178 /** 179 * The Latin (European) range with the Latin (ASCII) digits. 180 */ 181 EUROPEAN ('\u0030', '\u0000', '\u0300'), 182 /** 183 * The Arabic range with the Arabic-Indic digits. 184 */ 185 ARABIC ('\u0660', '\u0600', '\u0780'), 186 /** 187 * The Arabic range with the Eastern Arabic-Indic digits. 188 */ 189 EASTERN_ARABIC ('\u06f0', '\u0600', '\u0780'), 190 /** 191 * The Devanagari range with the Devanagari digits. 192 */ 193 DEVANAGARI ('\u0966', '\u0900', '\u0980'), 194 /** 195 * The Bengali range with the Bengali digits. 196 */ 197 BENGALI ('\u09e6', '\u0980', '\u0a00'), 198 /** 199 * The Gurmukhi range with the Gurmukhi digits. 200 */ 201 GURMUKHI ('\u0a66', '\u0a00', '\u0a80'), 202 /** 203 * The Gujarati range with the Gujarati digits. 204 */ 205 GUJARATI ('\u0ae6', '\u0b00', '\u0b80'), 206 /** 207 * The Oriya range with the Oriya digits. 208 */ 209 ORIYA ('\u0b66', '\u0b00', '\u0b80'), 210 /** 211 * The Tamil range with the Tamil digits. 212 */ 213 TAMIL ('\u0be6', '\u0b80', '\u0c00'), 214 /** 215 * The Telugu range with the Telugu digits. 216 */ 217 TELUGU ('\u0c66', '\u0c00', '\u0c80'), 218 /** 219 * The Kannada range with the Kannada digits. 220 */ 221 KANNADA ('\u0ce6', '\u0c80', '\u0d00'), 222 /** 223 * The Malayalam range with the Malayalam digits. 224 */ 225 MALAYALAM ('\u0d66', '\u0d00', '\u0d80'), 226 /** 227 * The Thai range with the Thai digits. 228 */ 229 THAI ('\u0e50', '\u0e00', '\u0e80'), 230 /** 231 * The Lao range with the Lao digits. 232 */ 233 LAO ('\u0ed0', '\u0e80', '\u0f00'), 234 /** 235 * The Tibetan range with the Tibetan digits. 236 */ 237 TIBETAN ('\u0f20', '\u0f00', '\u1000'), 238 /** 239 * The Myanmar range with the Myanmar digits. 240 */ 241 MYANMAR ('\u1040', '\u1000', '\u1080'), 242 /** 243 * The Ethiopic range with the Ethiopic digits. Ethiopic 244 * does not have a decimal digit 0 so Latin (European) 0 is 245 * used. 246 */ 247 ETHIOPIC ('\u1369', '\u1200', '\u1380') { 248 @Override 249 char getNumericBase() { return 1; } 250 }, 251 /** 252 * The Khmer range with the Khmer digits. 253 */ 254 KHMER ('\u17e0', '\u1780', '\u1800'), 255 /** 256 * The Mongolian range with the Mongolian digits. 257 */ 258 MONGOLIAN ('\u1810', '\u1800', '\u1900'), 259 // The order of EUROPEAN to MOGOLIAN must be consistent 260 // with the bitmask-based constants. 261 262 /** 263 * The N'Ko range with the N'Ko digits. 264 */ 265 NKO ('\u07c0', '\u07c0', '\u0800'), 266 /** 267 * The Myanmar range with the Myanmar Shan digits. 268 */ 269 MYANMAR_SHAN ('\u1090', '\u1000', '\u10a0'), 270 /** 271 * The Limbu range with the Limbu digits. 272 */ 273 LIMBU ('\u1946', '\u1900', '\u1950'), 274 /** 275 * The New Tai Lue range with the New Tai Lue digits. 276 */ 277 NEW_TAI_LUE ('\u19d0', '\u1980', '\u19e0'), 278 /** 279 * The Balinese range with the Balinese digits. 280 */ 281 BALINESE ('\u1b50', '\u1b00', '\u1b80'), 282 /** 283 * The Sundanese range with the Sundanese digits. 284 */ 285 SUNDANESE ('\u1bb0', '\u1b80', '\u1bc0'), 286 /** 287 * The Lepcha range with the Lepcha digits. 288 */ 289 LEPCHA ('\u1c40', '\u1c00', '\u1c50'), 290 /** 291 * The Ol Chiki range with the Ol Chiki digits. 292 */ 293 OL_CHIKI ('\u1c50', '\u1c50', '\u1c80'), 294 /** 295 * The Vai range with the Vai digits. 296 */ 297 VAI ('\ua620', '\ua500', '\ua640'), 298 /** 299 * The Saurashtra range with the Saurashtra digits. 300 */ 301 SAURASHTRA ('\ua8d0', '\ua880', '\ua8e0'), 302 /** 303 * The Kayah Li range with the Kayah Li digits. 304 */ 305 KAYAH_LI ('\ua900', '\ua900', '\ua930'), 306 /** 307 * The Cham range with the Cham digits. 308 */ 309 CHAM ('\uaa50', '\uaa00', '\uaa60'), 310 /** 311 * The Tai Tham Hora range with the Tai Tham Hora digits. 312 */ 313 TAI_THAM_HORA ('\u1a80', '\u1a20', '\u1ab0'), 314 /** 315 * The Tai Tham Tham range with the Tai Tham Tham digits. 316 */ 317 TAI_THAM_THAM ('\u1a90', '\u1a20', '\u1ab0'), 318 /** 319 * The Javanese range with the Javanese digits. 320 */ 321 JAVANESE ('\ua9d0', '\ua980', '\ua9e0'), 322 /** 323 * The Meetei Mayek range with the Meetei Mayek digits. 324 */ 325 MEETEI_MAYEK ('\uabf0', '\uabc0', '\uac00'), 326 /** 327 * The Sinhala range with the Sinhala digits. 328 * @since 9 329 */ 330 SINHALA ('\u0de6', '\u0d80', '\u0e00'), 331 /** 332 * The Myanmar Extended-B range with the Myanmar Tai Laing digits. 333 * @since 9 334 */ 335 MYANMAR_TAI_LAING ('\ua9f0', '\ua9e0', '\uaa00'); 336 337 private static int toRangeIndex(Range script) { 338 int index = script.ordinal(); 339 return index < NUM_KEYS ? index : -1; 340 } 341 342 private static Range indexToRange(int index) { 343 return index < NUM_KEYS ? Range.values()[index] : null; 344 } 345 346 private static int toRangeMask(Set<Range> ranges) { 347 int m = 0; 348 for (Range range : ranges) { 349 int index = range.ordinal(); 350 if (index < NUM_KEYS) { 351 m |= 1 << index; 352 } 353 } 354 return m; 355 } 356 357 private static Set<Range> maskToRangeSet(int mask) { 358 Set<Range> set = EnumSet.noneOf(Range.class); 359 Range[] a = Range.values(); 360 for (int i = 0; i < NUM_KEYS; i++) { 361 if ((mask & (1 << i)) != 0) { 362 set.add(a[i]); 363 } 364 } 365 return set; 366 } 367 368 // base character of range digits 369 private final int base; 370 // Unicode range 371 private final int start, // inclusive 372 end; // exclusive 373 374 private Range(int base, int start, int end) { 375 this.base = base - ('0' + getNumericBase()); 376 this.start = start; 377 this.end = end; 378 } 379 380 private int getDigitBase() { 381 return base; 382 } 383 384 char getNumericBase() { 385 return 0; 386 } 387 388 private boolean inRange(int c) { 389 return start <= c && c < end; 390 } 391 } 392 393 /** index of context for contextual shaping - values range from 0 to 18 */ 394 private int key; 395 396 /** flag indicating whether to shape contextually (high bit) and which 397 * digit ranges to shape (bits 0-18) 398 */ 399 private int mask; 400 401 /** 402 * The context {@code Range} for contextual shaping or the {@code 403 * Range} for non-contextual shaping. {@code null} for the bit 404 * mask-based API. 405 * 406 * @since 1.7 407 */ 408 private Range shapingRange; 409 410 /** 411 * {@code Set<Range>} indicating which Unicode ranges to 412 * shape. {@code null} for the bit mask-based API. 413 */ 414 private transient Set<Range> rangeSet; 415 416 /** 417 * rangeSet.toArray() value. Sorted by Range.base when the number 418 * of elements is greater than BSEARCH_THRESHOLD. 419 */ 420 private transient Range[] rangeArray; 421 422 /** 423 * If more than BSEARCH_THRESHOLD ranges are specified, binary search is used. 424 */ 425 private static final int BSEARCH_THRESHOLD = 3; 426 427 private static final long serialVersionUID = -8022764705923730308L; 428 429 /** Identifies the Latin-1 (European) and extended range, and 430 * Latin-1 (European) decimal base. 431 */ 432 public static final int EUROPEAN = 1<<0; 433 434 /** Identifies the ARABIC range and decimal base. */ 435 public static final int ARABIC = 1<<1; 436 437 /** Identifies the ARABIC range and ARABIC_EXTENDED decimal base. */ 438 public static final int EASTERN_ARABIC = 1<<2; 439 440 /** Identifies the DEVANAGARI range and decimal base. */ 441 public static final int DEVANAGARI = 1<<3; 442 443 /** Identifies the BENGALI range and decimal base. */ 444 public static final int BENGALI = 1<<4; 445 446 /** Identifies the GURMUKHI range and decimal base. */ 447 public static final int GURMUKHI = 1<<5; 448 449 /** Identifies the GUJARATI range and decimal base. */ 450 public static final int GUJARATI = 1<<6; 451 452 /** Identifies the ORIYA range and decimal base. */ 453 public static final int ORIYA = 1<<7; 454 455 /** Identifies the TAMIL range and decimal base. */ 456 // TAMIL DIGIT ZERO was added in Unicode 4.1 457 public static final int TAMIL = 1<<8; 458 459 /** Identifies the TELUGU range and decimal base. */ 460 public static final int TELUGU = 1<<9; 461 462 /** Identifies the KANNADA range and decimal base. */ 463 public static final int KANNADA = 1<<10; 464 465 /** Identifies the MALAYALAM range and decimal base. */ 466 public static final int MALAYALAM = 1<<11; 467 468 /** Identifies the THAI range and decimal base. */ 469 public static final int THAI = 1<<12; 470 471 /** Identifies the LAO range and decimal base. */ 472 public static final int LAO = 1<<13; 473 474 /** Identifies the TIBETAN range and decimal base. */ 475 public static final int TIBETAN = 1<<14; 476 477 /** Identifies the MYANMAR range and decimal base. */ 478 public static final int MYANMAR = 1<<15; 479 480 /** Identifies the ETHIOPIC range and decimal base. */ 481 public static final int ETHIOPIC = 1<<16; 482 483 /** Identifies the KHMER range and decimal base. */ 484 public static final int KHMER = 1<<17; 485 486 /** Identifies the MONGOLIAN range and decimal base. */ 487 public static final int MONGOLIAN = 1<<18; 488 489 /** Identifies all ranges, for full contextual shaping. 490 * 491 * <p>This constant specifies all of the bit mask-based 492 * ranges. Use {@code EnumSet.allOf(NumericShaper.Range.class)} to 493 * specify all of the enum-based ranges. 494 */ 495 public static final int ALL_RANGES = 0x0007ffff; 496 497 private static final int EUROPEAN_KEY = 0; 498 private static final int ARABIC_KEY = 1; 499 private static final int EASTERN_ARABIC_KEY = 2; 500 private static final int DEVANAGARI_KEY = 3; 501 private static final int BENGALI_KEY = 4; 502 private static final int GURMUKHI_KEY = 5; 503 private static final int GUJARATI_KEY = 6; 504 private static final int ORIYA_KEY = 7; 505 private static final int TAMIL_KEY = 8; 506 private static final int TELUGU_KEY = 9; 507 private static final int KANNADA_KEY = 10; 508 private static final int MALAYALAM_KEY = 11; 509 private static final int THAI_KEY = 12; 510 private static final int LAO_KEY = 13; 511 private static final int TIBETAN_KEY = 14; 512 private static final int MYANMAR_KEY = 15; 513 private static final int ETHIOPIC_KEY = 16; 514 private static final int KHMER_KEY = 17; 515 private static final int MONGOLIAN_KEY = 18; 516 517 private static final int NUM_KEYS = MONGOLIAN_KEY + 1; // fixed 518 519 private static final int CONTEXTUAL_MASK = 1<<31; 520 521 private static final char[] bases = { 522 '\u0030' - '\u0030', // EUROPEAN 523 '\u0660' - '\u0030', // ARABIC-INDIC 524 '\u06f0' - '\u0030', // EXTENDED ARABIC-INDIC (EASTERN_ARABIC) 525 '\u0966' - '\u0030', // DEVANAGARI 526 '\u09e6' - '\u0030', // BENGALI 527 '\u0a66' - '\u0030', // GURMUKHI 528 '\u0ae6' - '\u0030', // GUJARATI 529 '\u0b66' - '\u0030', // ORIYA 530 '\u0be6' - '\u0030', // TAMIL - zero was added in Unicode 4.1 531 '\u0c66' - '\u0030', // TELUGU 532 '\u0ce6' - '\u0030', // KANNADA 533 '\u0d66' - '\u0030', // MALAYALAM 534 '\u0e50' - '\u0030', // THAI 535 '\u0ed0' - '\u0030', // LAO 536 '\u0f20' - '\u0030', // TIBETAN 537 '\u1040' - '\u0030', // MYANMAR 538 '\u1369' - '\u0031', // ETHIOPIC - no zero 539 '\u17e0' - '\u0030', // KHMER 540 '\u1810' - '\u0030', // MONGOLIAN 541 }; 542 543 // some ranges adjoin or overlap, rethink if we want to do a binary search on this 544 545 private static final char[] contexts = { 546 '\u0000', '\u0300', // 'EUROPEAN' (really latin-1 and extended) 547 '\u0600', '\u0780', // ARABIC 548 '\u0600', '\u0780', // EASTERN_ARABIC -- note overlap with arabic 549 '\u0900', '\u0980', // DEVANAGARI 550 '\u0980', '\u0a00', // BENGALI 551 '\u0a00', '\u0a80', // GURMUKHI 552 '\u0a80', '\u0b00', // GUJARATI 553 '\u0b00', '\u0b80', // ORIYA 554 '\u0b80', '\u0c00', // TAMIL 555 '\u0c00', '\u0c80', // TELUGU 556 '\u0c80', '\u0d00', // KANNADA 557 '\u0d00', '\u0d80', // MALAYALAM 558 '\u0e00', '\u0e80', // THAI 559 '\u0e80', '\u0f00', // LAO 560 '\u0f00', '\u1000', // TIBETAN 561 '\u1000', '\u1080', // MYANMAR 562 '\u1200', '\u1380', // ETHIOPIC - note missing zero 563 '\u1780', '\u1800', // KHMER 564 '\u1800', '\u1900', // MONGOLIAN 565 '\uffff', 566 }; 567 568 // assume most characters are near each other so probing the cache is infrequent, 569 // and a linear probe is ok. 570 571 private static int ctCache = 0; 572 private static int ctCacheLimit = contexts.length - 2; 573 574 // warning, synchronize access to this as it modifies state 575 private static int getContextKey(char c) { 576 if (c < contexts[ctCache]) { 577 while (ctCache > 0 && c < contexts[ctCache]) --ctCache; 578 } else if (c >= contexts[ctCache + 1]) { 579 while (ctCache < ctCacheLimit && c >= contexts[ctCache + 1]) ++ctCache; 580 } 581 582 // if we're not in a known range, then return EUROPEAN as the range key 583 return (ctCache & 0x1) == 0 ? (ctCache / 2) : EUROPEAN_KEY; 584 } 585 586 // cache for the NumericShaper.Range version 587 private transient volatile Range currentRange = Range.EUROPEAN; 588 589 private Range rangeForCodePoint(final int codepoint) { 590 if (currentRange.inRange(codepoint)) { 591 return currentRange; 592 } 593 594 final Range[] ranges = rangeArray; 595 if (ranges.length > BSEARCH_THRESHOLD) { 596 int lo = 0; 597 int hi = ranges.length - 1; 598 while (lo <= hi) { 599 int mid = (lo + hi) / 2; 600 Range range = ranges[mid]; 601 if (codepoint < range.start) { 602 hi = mid - 1; 603 } else if (codepoint >= range.end) { 604 lo = mid + 1; 605 } else { 606 currentRange = range; 607 return range; 608 } 609 } 610 } else { 611 for (int i = 0; i < ranges.length; i++) { 612 if (ranges[i].inRange(codepoint)) { 613 return ranges[i]; 614 } 615 } 616 } 617 return Range.EUROPEAN; 618 } 619 620 /* 621 * A range table of strong directional characters (types L, R, AL). 622 * Even (left) indexes are starts of ranges of non-strong-directional (or undefined) 623 * characters, odd (right) indexes are starts of ranges of strong directional 624 * characters. 625 */ 626 private static int[] strongTable = { 627 0x0000, 0x0041, 628 0x005b, 0x0061, 629 0x007b, 0x00aa, 630 0x00ab, 0x00b5, 631 0x00b6, 0x00ba, 632 0x00bb, 0x00c0, 633 0x00d7, 0x00d8, 634 0x00f7, 0x00f8, 635 0x02b9, 0x02bb, 636 0x02c2, 0x02d0, 637 0x02d2, 0x02e0, 638 0x02e5, 0x02ee, 639 0x02ef, 0x0370, 640 0x0374, 0x0376, 641 0x0378, 0x037a, 642 0x037e, 0x037f, 643 0x0380, 0x0386, 644 0x0387, 0x0388, 645 0x038b, 0x038c, 646 0x038d, 0x038e, 647 0x03a2, 0x03a3, 648 0x03f6, 0x03f7, 649 0x0483, 0x048a, 650 0x0530, 0x0531, 651 0x0557, 0x0559, 652 0x0560, 0x0561, 653 0x0588, 0x0589, 654 0x058a, 0x0590, 655 0x0591, 0x05be, 656 0x05bf, 0x05c0, 657 0x05c1, 0x05c3, 658 0x05c4, 0x05c6, 659 0x05c7, 0x05c8, 660 0x0600, 0x0608, 661 0x0609, 0x060b, 662 0x060c, 0x060d, 663 0x060e, 0x061b, 664 0x064b, 0x066d, 665 0x0670, 0x0671, 666 0x06d6, 0x06e5, 667 0x06e7, 0x06ee, 668 0x06f0, 0x06fa, 669 0x0711, 0x0712, 670 0x0730, 0x074b, 671 0x07a6, 0x07b1, 672 0x07eb, 0x07f4, 673 0x07f6, 0x07fa, 674 0x0816, 0x081a, 675 0x081b, 0x0824, 676 0x0825, 0x0828, 677 0x0829, 0x082e, 678 0x0859, 0x085c, 679 0x08e3, 0x0903, 680 0x093a, 0x093b, 681 0x093c, 0x093d, 682 0x0941, 0x0949, 683 0x094d, 0x094e, 684 0x0951, 0x0958, 685 0x0962, 0x0964, 686 0x0981, 0x0982, 687 0x0984, 0x0985, 688 0x098d, 0x098f, 689 0x0991, 0x0993, 690 0x09a9, 0x09aa, 691 0x09b1, 0x09b2, 692 0x09b3, 0x09b6, 693 0x09ba, 0x09bd, 694 0x09c1, 0x09c7, 695 0x09c9, 0x09cb, 696 0x09cd, 0x09ce, 697 0x09cf, 0x09d7, 698 0x09d8, 0x09dc, 699 0x09de, 0x09df, 700 0x09e2, 0x09e6, 701 0x09f2, 0x09f4, 702 0x09fb, 0x09fc, 703 0x09fe, 0x0a03, 704 0x0a04, 0x0a05, 705 0x0a0b, 0x0a0f, 706 0x0a11, 0x0a13, 707 0x0a29, 0x0a2a, 708 0x0a31, 0x0a32, 709 0x0a34, 0x0a35, 710 0x0a37, 0x0a38, 711 0x0a3a, 0x0a3e, 712 0x0a41, 0x0a59, 713 0x0a5d, 0x0a5e, 714 0x0a5f, 0x0a66, 715 0x0a70, 0x0a72, 716 0x0a75, 0x0a83, 717 0x0a84, 0x0a85, 718 0x0a8e, 0x0a8f, 719 0x0a92, 0x0a93, 720 0x0aa9, 0x0aaa, 721 0x0ab1, 0x0ab2, 722 0x0ab4, 0x0ab5, 723 0x0aba, 0x0abd, 724 0x0ac1, 0x0ac9, 725 0x0aca, 0x0acb, 726 0x0acd, 0x0ad0, 727 0x0ad1, 0x0ae0, 728 0x0ae2, 0x0ae6, 729 0x0af1, 0x0af9, 730 0x0afa, 0x0b02, 731 0x0b04, 0x0b05, 732 0x0b0d, 0x0b0f, 733 0x0b11, 0x0b13, 734 0x0b29, 0x0b2a, 735 0x0b31, 0x0b32, 736 0x0b34, 0x0b35, 737 0x0b3a, 0x0b3d, 738 0x0b3f, 0x0b40, 739 0x0b41, 0x0b47, 740 0x0b49, 0x0b4b, 741 0x0b4d, 0x0b57, 742 0x0b58, 0x0b5c, 743 0x0b5e, 0x0b5f, 744 0x0b62, 0x0b66, 745 0x0b78, 0x0b83, 746 0x0b84, 0x0b85, 747 0x0b8b, 0x0b8e, 748 0x0b91, 0x0b92, 749 0x0b96, 0x0b99, 750 0x0b9b, 0x0b9c, 751 0x0b9d, 0x0b9e, 752 0x0ba0, 0x0ba3, 753 0x0ba5, 0x0ba8, 754 0x0bab, 0x0bae, 755 0x0bba, 0x0bbe, 756 0x0bc0, 0x0bc1, 757 0x0bc3, 0x0bc6, 758 0x0bc9, 0x0bca, 759 0x0bcd, 0x0bd0, 760 0x0bd1, 0x0bd7, 761 0x0bd8, 0x0be6, 762 0x0bf3, 0x0c01, 763 0x0c04, 0x0c05, 764 0x0c0d, 0x0c0e, 765 0x0c11, 0x0c12, 766 0x0c29, 0x0c2a, 767 0x0c3a, 0x0c3d, 768 0x0c3e, 0x0c41, 769 0x0c45, 0x0c58, 770 0x0c5b, 0x0c60, 771 0x0c62, 0x0c66, 772 0x0c70, 0x0c7f, 773 0x0c81, 0x0c82, 774 0x0c84, 0x0c85, 775 0x0c8d, 0x0c8e, 776 0x0c91, 0x0c92, 777 0x0ca9, 0x0caa, 778 0x0cb4, 0x0cb5, 779 0x0cba, 0x0cbd, 780 0x0cc5, 0x0cc6, 781 0x0cc9, 0x0cca, 782 0x0ccc, 0x0cd5, 783 0x0cd7, 0x0cde, 784 0x0cdf, 0x0ce0, 785 0x0ce2, 0x0ce6, 786 0x0cf0, 0x0cf1, 787 0x0cf3, 0x0d02, 788 0x0d04, 0x0d05, 789 0x0d0d, 0x0d0e, 790 0x0d11, 0x0d12, 791 0x0d3b, 0x0d3d, 792 0x0d41, 0x0d46, 793 0x0d49, 0x0d4a, 794 0x0d4d, 0x0d4e, 795 0x0d62, 0x0d66, 796 0x0d80, 0x0d82, 797 0x0d84, 0x0d85, 798 0x0d97, 0x0d9a, 799 0x0db2, 0x0db3, 800 0x0dbc, 0x0dbd, 801 0x0dbe, 0x0dc0, 802 0x0dc7, 0x0dcf, 803 0x0dd2, 0x0dd8, 804 0x0de0, 0x0de6, 805 0x0df0, 0x0df2, 806 0x0df5, 0x0e01, 807 0x0e31, 0x0e32, 808 0x0e34, 0x0e40, 809 0x0e47, 0x0e4f, 810 0x0e5c, 0x0e81, 811 0x0e83, 0x0e84, 812 0x0e85, 0x0e87, 813 0x0e89, 0x0e8a, 814 0x0e8b, 0x0e8d, 815 0x0e8e, 0x0e94, 816 0x0e98, 0x0e99, 817 0x0ea0, 0x0ea1, 818 0x0ea4, 0x0ea5, 819 0x0ea6, 0x0ea7, 820 0x0ea8, 0x0eaa, 821 0x0eac, 0x0ead, 822 0x0eb1, 0x0eb2, 823 0x0eb4, 0x0ebd, 824 0x0ebe, 0x0ec0, 825 0x0ec5, 0x0ec6, 826 0x0ec7, 0x0ed0, 827 0x0eda, 0x0edc, 828 0x0ee0, 0x0f00, 829 0x0f18, 0x0f1a, 830 0x0f35, 0x0f36, 831 0x0f37, 0x0f38, 832 0x0f39, 0x0f3e, 833 0x0f48, 0x0f49, 834 0x0f6d, 0x0f7f, 835 0x0f80, 0x0f85, 836 0x0f86, 0x0f88, 837 0x0f8d, 0x0fbe, 838 0x0fc6, 0x0fc7, 839 0x0fcd, 0x0fce, 840 0x0fdb, 0x1000, 841 0x102d, 0x1031, 842 0x1032, 0x1038, 843 0x1039, 0x103b, 844 0x103d, 0x103f, 845 0x1058, 0x105a, 846 0x105e, 0x1061, 847 0x1071, 0x1075, 848 0x1082, 0x1083, 849 0x1085, 0x1087, 850 0x108d, 0x108e, 851 0x109d, 0x109e, 852 0x10c6, 0x10c7, 853 0x10c8, 0x10cd, 854 0x10ce, 0x10d0, 855 0x1249, 0x124a, 856 0x124e, 0x1250, 857 0x1257, 0x1258, 858 0x1259, 0x125a, 859 0x125e, 0x1260, 860 0x1289, 0x128a, 861 0x128e, 0x1290, 862 0x12b1, 0x12b2, 863 0x12b6, 0x12b8, 864 0x12bf, 0x12c0, 865 0x12c1, 0x12c2, 866 0x12c6, 0x12c8, 867 0x12d7, 0x12d8, 868 0x1311, 0x1312, 869 0x1316, 0x1318, 870 0x135b, 0x1360, 871 0x137d, 0x1380, 872 0x1390, 0x13a0, 873 0x13f6, 0x13f8, 874 0x13fe, 0x1401, 875 0x1680, 0x1681, 876 0x169b, 0x16a0, 877 0x16f9, 0x1700, 878 0x170d, 0x170e, 879 0x1712, 0x1720, 880 0x1732, 0x1735, 881 0x1737, 0x1740, 882 0x1752, 0x1760, 883 0x176d, 0x176e, 884 0x1771, 0x1780, 885 0x17b4, 0x17b6, 886 0x17b7, 0x17be, 887 0x17c6, 0x17c7, 888 0x17c9, 0x17d4, 889 0x17db, 0x17dc, 890 0x17dd, 0x17e0, 891 0x17ea, 0x1810, 892 0x181a, 0x1820, 893 0x1878, 0x1884, 894 0x1885, 0x1887, 895 0x18a9, 0x18aa, 896 0x18ab, 0x18b0, 897 0x18f6, 0x1900, 898 0x191f, 0x1923, 899 0x1927, 0x1929, 900 0x192c, 0x1930, 901 0x1932, 0x1933, 902 0x1939, 0x1946, 903 0x196e, 0x1970, 904 0x1975, 0x1980, 905 0x19ac, 0x19b0, 906 0x19ca, 0x19d0, 907 0x19db, 0x1a00, 908 0x1a17, 0x1a19, 909 0x1a1b, 0x1a1e, 910 0x1a56, 0x1a57, 911 0x1a58, 0x1a61, 912 0x1a62, 0x1a63, 913 0x1a65, 0x1a6d, 914 0x1a73, 0x1a80, 915 0x1a8a, 0x1a90, 916 0x1a9a, 0x1aa0, 917 0x1aae, 0x1b04, 918 0x1b34, 0x1b35, 919 0x1b36, 0x1b3b, 920 0x1b3c, 0x1b3d, 921 0x1b42, 0x1b43, 922 0x1b4c, 0x1b50, 923 0x1b6b, 0x1b74, 924 0x1b7d, 0x1b82, 925 0x1ba2, 0x1ba6, 926 0x1ba8, 0x1baa, 927 0x1bab, 0x1bae, 928 0x1be6, 0x1be7, 929 0x1be8, 0x1bea, 930 0x1bed, 0x1bee, 931 0x1bef, 0x1bf2, 932 0x1bf4, 0x1bfc, 933 0x1c2c, 0x1c34, 934 0x1c36, 0x1c3b, 935 0x1c4a, 0x1c4d, 936 0x1cc8, 0x1cd3, 937 0x1cd4, 0x1ce1, 938 0x1ce2, 0x1ce9, 939 0x1ced, 0x1cee, 940 0x1cf4, 0x1cf5, 941 0x1cf8, 0x1d00, 942 0x1dc0, 0x1e00, 943 0x1f16, 0x1f18, 944 0x1f1e, 0x1f20, 945 0x1f46, 0x1f48, 946 0x1f4e, 0x1f50, 947 0x1f58, 0x1f59, 948 0x1f5a, 0x1f5b, 949 0x1f5c, 0x1f5d, 950 0x1f5e, 0x1f5f, 951 0x1f7e, 0x1f80, 952 0x1fb5, 0x1fb6, 953 0x1fbd, 0x1fbe, 954 0x1fbf, 0x1fc2, 955 0x1fc5, 0x1fc6, 956 0x1fcd, 0x1fd0, 957 0x1fd4, 0x1fd6, 958 0x1fdc, 0x1fe0, 959 0x1fed, 0x1ff2, 960 0x1ff5, 0x1ff6, 961 0x1ffd, 0x200e, 962 0x2010, 0x2071, 963 0x2072, 0x207f, 964 0x2080, 0x2090, 965 0x209d, 0x2102, 966 0x2103, 0x2107, 967 0x2108, 0x210a, 968 0x2114, 0x2115, 969 0x2116, 0x2119, 970 0x211e, 0x2124, 971 0x2125, 0x2126, 972 0x2127, 0x2128, 973 0x2129, 0x212a, 974 0x212e, 0x212f, 975 0x213a, 0x213c, 976 0x2140, 0x2145, 977 0x214a, 0x214e, 978 0x2150, 0x2160, 979 0x2189, 0x2336, 980 0x237b, 0x2395, 981 0x2396, 0x249c, 982 0x24ea, 0x26ac, 983 0x26ad, 0x2800, 984 0x2900, 0x2c00, 985 0x2c2f, 0x2c30, 986 0x2c5f, 0x2c60, 987 0x2ce5, 0x2ceb, 988 0x2cef, 0x2cf2, 989 0x2cf4, 0x2d00, 990 0x2d26, 0x2d27, 991 0x2d28, 0x2d2d, 992 0x2d2e, 0x2d30, 993 0x2d68, 0x2d6f, 994 0x2d71, 0x2d80, 995 0x2d97, 0x2da0, 996 0x2da7, 0x2da8, 997 0x2daf, 0x2db0, 998 0x2db7, 0x2db8, 999 0x2dbf, 0x2dc0, 1000 0x2dc7, 0x2dc8, 1001 0x2dcf, 0x2dd0, 1002 0x2dd7, 0x2dd8, 1003 0x2ddf, 0x3005, 1004 0x3008, 0x3021, 1005 0x302a, 0x302e, 1006 0x3030, 0x3031, 1007 0x3036, 0x3038, 1008 0x303d, 0x3041, 1009 0x3097, 0x309d, 1010 0x30a0, 0x30a1, 1011 0x30fb, 0x30fc, 1012 0x3100, 0x3105, 1013 0x312f, 0x3131, 1014 0x318f, 0x3190, 1015 0x31bb, 0x31f0, 1016 0x321d, 0x3220, 1017 0x3250, 0x3260, 1018 0x327c, 0x327f, 1019 0x32b1, 0x32c0, 1020 0x32cc, 0x32d0, 1021 0x32ff, 0x3300, 1022 0x3377, 0x337b, 1023 0x33de, 0x33e0, 1024 0x33ff, 0x3400, 1025 0x4db6, 0x4e00, 1026 0x9feb, 0xa000, 1027 0xa48d, 0xa4d0, 1028 0xa60d, 0xa610, 1029 0xa62c, 0xa640, 1030 0xa66f, 0xa680, 1031 0xa69e, 0xa6a0, 1032 0xa6f0, 0xa6f2, 1033 0xa6f8, 0xa722, 1034 0xa788, 0xa789, 1035 0xa7af, 0xa7b0, 1036 0xa7b8, 0xa7f7, 1037 0xa802, 0xa803, 1038 0xa806, 0xa807, 1039 0xa80b, 0xa80c, 1040 0xa825, 0xa827, 1041 0xa828, 0xa830, 1042 0xa838, 0xa840, 1043 0xa874, 0xa880, 1044 0xa8c4, 0xa8ce, 1045 0xa8da, 0xa8f2, 1046 0xa8fe, 0xa900, 1047 0xa926, 0xa92e, 1048 0xa947, 0xa952, 1049 0xa954, 0xa95f, 1050 0xa97d, 0xa983, 1051 0xa9b3, 0xa9b4, 1052 0xa9b6, 0xa9ba, 1053 0xa9bc, 0xa9bd, 1054 0xa9ce, 0xa9cf, 1055 0xa9da, 0xa9de, 1056 0xa9e5, 0xa9e6, 1057 0xa9ff, 0xaa00, 1058 0xaa29, 0xaa2f, 1059 0xaa31, 0xaa33, 1060 0xaa35, 0xaa40, 1061 0xaa43, 0xaa44, 1062 0xaa4c, 0xaa4d, 1063 0xaa4e, 0xaa50, 1064 0xaa5a, 0xaa5c, 1065 0xaa7c, 0xaa7d, 1066 0xaab0, 0xaab1, 1067 0xaab2, 0xaab5, 1068 0xaab7, 0xaab9, 1069 0xaabe, 0xaac0, 1070 0xaac1, 0xaac2, 1071 0xaac3, 0xaadb, 1072 0xaaec, 0xaaee, 1073 0xaaf6, 0xab01, 1074 0xab07, 0xab09, 1075 0xab0f, 0xab11, 1076 0xab17, 0xab20, 1077 0xab27, 0xab28, 1078 0xab2f, 0xab30, 1079 0xab66, 0xab70, 1080 0xabe5, 0xabe6, 1081 0xabe8, 0xabe9, 1082 0xabed, 0xabf0, 1083 0xabfa, 0xac00, 1084 0xd7a4, 0xd7b0, 1085 0xd7c7, 0xd7cb, 1086 0xd7fc, 0xe000, 1087 0xfa6e, 0xfa70, 1088 0xfada, 0xfb00, 1089 0xfb07, 0xfb13, 1090 0xfb18, 0xfb1d, 1091 0xfb1e, 0xfb1f, 1092 0xfb29, 0xfb2a, 1093 0xfd3e, 0xfd40, 1094 0xfdd0, 0xfdf0, 1095 0xfdfd, 0xfdfe, 1096 0xfe00, 0xfe70, 1097 0xfeff, 0xff21, 1098 0xff3b, 0xff41, 1099 0xff5b, 0xff66, 1100 0xffbf, 0xffc2, 1101 0xffc8, 0xffca, 1102 0xffd0, 0xffd2, 1103 0xffd8, 0xffda, 1104 0xffdd, 0x10000, 1105 0x1000c, 0x1000d, 1106 0x10027, 0x10028, 1107 0x1003b, 0x1003c, 1108 0x1003e, 0x1003f, 1109 0x1004e, 0x10050, 1110 0x1005e, 0x10080, 1111 0x100fb, 0x10100, 1112 0x10101, 0x10102, 1113 0x10103, 0x10107, 1114 0x10134, 0x10137, 1115 0x10140, 0x1018d, 1116 0x1018f, 0x101d0, 1117 0x101fd, 0x10280, 1118 0x1029d, 0x102a0, 1119 0x102d1, 0x10300, 1120 0x10324, 0x1032d, 1121 0x1034b, 0x10350, 1122 0x10376, 0x10380, 1123 0x1039e, 0x1039f, 1124 0x103c4, 0x103c8, 1125 0x103d6, 0x10400, 1126 0x1049e, 0x104a0, 1127 0x104aa, 0x104d3, 1128 0x104d4, 0x104d8, 1129 0x104fc, 0x10500, 1130 0x10528, 0x10530, 1131 0x10564, 0x1056f, 1132 0x10570, 0x10600, 1133 0x10737, 0x10740, 1134 0x10756, 0x10760, 1135 0x10768, 0x10800, 1136 0x1091f, 0x10920, 1137 0x10a01, 0x10a04, 1138 0x10a05, 0x10a07, 1139 0x10a0c, 0x10a10, 1140 0x10a38, 0x10a3b, 1141 0x10a3f, 0x10a40, 1142 0x10ae5, 0x10ae7, 1143 0x10b39, 0x10b40, 1144 0x10e60, 0x10e7f, 1145 0x11001, 0x11002, 1146 0x11038, 0x11047, 1147 0x1104e, 0x11066, 1148 0x11070, 0x11082, 1149 0x110b3, 0x110b7, 1150 0x110b9, 0x110bb, 1151 0x110c2, 0x110d0, 1152 0x110e9, 0x110f0, 1153 0x110fa, 0x11103, 1154 0x11127, 0x1112c, 1155 0x1112d, 0x11136, 1156 0x11144, 0x11150, 1157 0x11173, 0x11174, 1158 0x11177, 0x11182, 1159 0x111b6, 0x111bf, 1160 0x111ca, 0x111cd, 1161 0x111ce, 0x111d0, 1162 0x111e0, 0x111e1, 1163 0x111f5, 0x11200, 1164 0x11212, 0x11213, 1165 0x1122f, 0x11232, 1166 0x11234, 0x11235, 1167 0x11236, 0x11238, 1168 0x1123e, 0x11280, 1169 0x11287, 0x11288, 1170 0x11289, 0x1128a, 1171 0x1128e, 0x1128f, 1172 0x1129e, 0x1129f, 1173 0x112aa, 0x112b0, 1174 0x112df, 0x112e0, 1175 0x112e3, 0x112f0, 1176 0x112fa, 0x11302, 1177 0x11304, 0x11305, 1178 0x1130d, 0x1130f, 1179 0x11311, 0x11313, 1180 0x11329, 0x1132a, 1181 0x11331, 0x11332, 1182 0x11334, 0x11335, 1183 0x1133a, 0x1133d, 1184 0x11340, 0x11341, 1185 0x11345, 0x11347, 1186 0x11349, 0x1134b, 1187 0x1134e, 0x11350, 1188 0x11351, 0x11357, 1189 0x11358, 0x1135d, 1190 0x11364, 0x11400, 1191 0x11438, 0x11440, 1192 0x11442, 0x11445, 1193 0x11446, 0x11447, 1194 0x1145a, 0x1145b, 1195 0x1145c, 0x1145d, 1196 0x1145e, 0x11480, 1197 0x114b3, 0x114b9, 1198 0x114ba, 0x114bb, 1199 0x114bf, 0x114c1, 1200 0x114c2, 0x114c4, 1201 0x114c8, 0x114d0, 1202 0x114da, 0x11580, 1203 0x115b2, 0x115b8, 1204 0x115bc, 0x115be, 1205 0x115bf, 0x115c1, 1206 0x115dc, 0x11600, 1207 0x11633, 0x1163b, 1208 0x1163d, 0x1163e, 1209 0x1163f, 0x11641, 1210 0x11645, 0x11650, 1211 0x1165a, 0x11680, 1212 0x116ab, 0x116ac, 1213 0x116ad, 0x116ae, 1214 0x116b0, 0x116b6, 1215 0x116b7, 0x116c0, 1216 0x116ca, 0x11700, 1217 0x1171a, 0x11720, 1218 0x11722, 0x11726, 1219 0x11727, 0x11730, 1220 0x11740, 0x118a0, 1221 0x118f3, 0x118ff, 1222 0x11900, 0x11a00, 1223 0x11a01, 0x11a07, 1224 0x11a09, 0x11a0b, 1225 0x11a33, 0x11a3a, 1226 0x11a3b, 0x11a3f, 1227 0x11a47, 0x11a50, 1228 0x11a51, 0x11a57, 1229 0x11a59, 0x11a5c, 1230 0x11a84, 0x11a86, 1231 0x11a8a, 0x11a97, 1232 0x11a98, 0x11a9a, 1233 0x11a9d, 0x11a9e, 1234 0x11aa3, 0x11ac0, 1235 0x11af9, 0x11C00, 1236 0x11C09, 0x11c0a, 1237 0x11c30, 0x11c3e, 1238 0x11c46, 0x11c50, 1239 0x11c6d, 0x11c70, 1240 0x11c90, 0x11ca9, 1241 0x11caa, 0x11cb1, 1242 0x11cb2, 0x11cb4, 1243 0x11cb5, 0x11d00, 1244 0x11d07, 0x11d08, 1245 0x11d0a, 0x11d0b, 1246 0x11d31, 0x11d46, 1247 0x11d47, 0x11d50, 1248 0x11d5a, 0x12000, 1249 0x1239a, 0x12400, 1250 0x1246f, 0x12470, 1251 0x12475, 0x12480, 1252 0x12544, 0x13000, 1253 0x1342f, 0x14400, 1254 0x14647, 0x16800, 1255 0x16a39, 0x16a40, 1256 0x16a5f, 0x16a60, 1257 0x16a6a, 0x16a6e, 1258 0x16a70, 0x16ad0, 1259 0x16aee, 0x16af5, 1260 0x16af6, 0x16b00, 1261 0x16b30, 0x16b37, 1262 0x16b46, 0x16b50, 1263 0x16b5a, 0x16b5b, 1264 0x16b62, 0x16b63, 1265 0x16b78, 0x16b7d, 1266 0x16b90, 0x16f00, 1267 0x16f45, 0x16f50, 1268 0x16f7f, 0x16f93, 1269 0x16fa0, 0x16fe0, 1270 0x16fe2, 0x17000, 1271 0x187ed, 0x18800, 1272 0x18af3, 0x1b000, 1273 0x1b11f, 0x1b170, 1274 0x1b2fc, 0x1bc00, 1275 0x1bc6b, 0x1bc70, 1276 0x1bc7d, 0x1bc80, 1277 0x1bc89, 0x1bc90, 1278 0x1bc9a, 0x1bc9c, 1279 0x1bc9d, 0x1bc9f, 1280 0x1bca0, 0x1d000, 1281 0x1d0f6, 0x1d100, 1282 0x1d127, 0x1d129, 1283 0x1d167, 0x1d16a, 1284 0x1d173, 0x1d183, 1285 0x1d185, 0x1d18c, 1286 0x1d1aa, 0x1d1ae, 1287 0x1d1e9, 0x1d360, 1288 0x1d372, 0x1d400, 1289 0x1d455, 0x1d456, 1290 0x1d49d, 0x1d49e, 1291 0x1d4a0, 0x1d4a2, 1292 0x1d4a3, 0x1d4a5, 1293 0x1d4a7, 0x1d4a9, 1294 0x1d4ad, 0x1d4ae, 1295 0x1d4ba, 0x1d4bb, 1296 0x1d4bc, 0x1d4bd, 1297 0x1d4c4, 0x1d4c5, 1298 0x1d506, 0x1d507, 1299 0x1d50b, 0x1d50d, 1300 0x1d515, 0x1d516, 1301 0x1d51d, 0x1d51e, 1302 0x1d53a, 0x1d53b, 1303 0x1d53f, 0x1d540, 1304 0x1d545, 0x1d546, 1305 0x1d547, 0x1d54a, 1306 0x1d551, 0x1d552, 1307 0x1d6a6, 0x1d6a8, 1308 0x1d6db, 0x1d6dc, 1309 0x1d715, 0x1d716, 1310 0x1d74f, 0x1d750, 1311 0x1d789, 0x1d78a, 1312 0x1d7c3, 0x1d7c4, 1313 0x1d7cc, 0x1d800, 1314 0x1da00, 0x1da37, 1315 0x1da3b, 0x1da6d, 1316 0x1da75, 0x1da76, 1317 0x1da84, 0x1da85, 1318 0x1da8c, 0x1e800, 1319 0x1e8d0, 0x1e8d7, 1320 0x1e944, 0x1e94b, 1321 0x1eef0, 0x1eef2, 1322 0x1f000, 0x1f110, 1323 0x1f12f, 0x1f130, 1324 0x1f16a, 0x1f170, 1325 0x1f1ad, 0x1f1e6, 1326 0x1f203, 0x1f210, 1327 0x1f23c, 0x1f240, 1328 0x1f249, 0x1f250, 1329 0x1f252, 0x20000, 1330 0x2a6d7, 0x2a700, 1331 0x2b735, 0x2b740, 1332 0x2b81e, 0x2b820, 1333 0x2cea2, 0x2ceb0, 1334 0x2ebe1, 0x2f800, 1335 0x2fa1e, 0xf0000, 1336 0xffffe, 0x100000, 1337 0x10fffe, 0x10ffff // sentinel 1338 }; 1339 1340 1341 // use a binary search with a cache 1342 1343 private transient volatile int stCache = 0; 1344 1345 private boolean isStrongDirectional(char c) { 1346 int cachedIndex = stCache; 1347 if (c < strongTable[cachedIndex]) { 1348 cachedIndex = search(c, strongTable, 0, cachedIndex); 1349 } else if (c >= strongTable[cachedIndex + 1]) { 1350 cachedIndex = search(c, strongTable, cachedIndex + 1, 1351 strongTable.length - cachedIndex - 1); 1352 } 1353 boolean val = (cachedIndex & 0x1) == 1; 1354 stCache = cachedIndex; 1355 return val; 1356 } 1357 1358 private static int getKeyFromMask(int mask) { 1359 int key = 0; 1360 while (key < NUM_KEYS && ((mask & (1<<key)) == 0)) { 1361 ++key; 1362 } 1363 if (key == NUM_KEYS || ((mask & ~(1<<key)) != 0)) { 1364 throw new IllegalArgumentException("invalid shaper: " + Integer.toHexString(mask)); 1365 } 1366 return key; 1367 } 1368 1369 /** 1370 * Returns a shaper for the provided unicode range. All 1371 * Latin-1 (EUROPEAN) digits are converted 1372 * to the corresponding decimal unicode digits. 1373 * @param singleRange the specified Unicode range 1374 * @return a non-contextual numeric shaper 1375 * @throws IllegalArgumentException if the range is not a single range 1376 */ 1377 public static NumericShaper getShaper(int singleRange) { 1378 int key = getKeyFromMask(singleRange); 1379 return new NumericShaper(key, singleRange); 1380 } 1381 1382 /** 1383 * Returns a shaper for the provided Unicode 1384 * range. All Latin-1 (EUROPEAN) digits are converted to the 1385 * corresponding decimal digits of the specified Unicode range. 1386 * 1387 * @param singleRange the Unicode range given by a {@link 1388 * NumericShaper.Range} constant. 1389 * @return a non-contextual {@code NumericShaper}. 1390 * @throws NullPointerException if {@code singleRange} is {@code null} 1391 * @since 1.7 1392 */ 1393 public static NumericShaper getShaper(Range singleRange) { 1394 return new NumericShaper(singleRange, EnumSet.of(singleRange)); 1395 } 1396 1397 /** 1398 * Returns a contextual shaper for the provided unicode range(s). 1399 * Latin-1 (EUROPEAN) digits are converted to the decimal digits 1400 * corresponding to the range of the preceding text, if the 1401 * range is one of the provided ranges. Multiple ranges are 1402 * represented by or-ing the values together, such as, 1403 * {@code NumericShaper.ARABIC | NumericShaper.THAI}. The 1404 * shaper assumes EUROPEAN as the starting context, that is, if 1405 * EUROPEAN digits are encountered before any strong directional 1406 * text in the string, the context is presumed to be EUROPEAN, and 1407 * so the digits will not shape. 1408 * @param ranges the specified Unicode ranges 1409 * @return a shaper for the specified ranges 1410 */ 1411 public static NumericShaper getContextualShaper(int ranges) { 1412 ranges |= CONTEXTUAL_MASK; 1413 return new NumericShaper(EUROPEAN_KEY, ranges); 1414 } 1415 1416 /** 1417 * Returns a contextual shaper for the provided Unicode 1418 * range(s). The Latin-1 (EUROPEAN) digits are converted to the 1419 * decimal digits corresponding to the range of the preceding 1420 * text, if the range is one of the provided ranges. 1421 * 1422 * <p>The shaper assumes EUROPEAN as the starting context, that 1423 * is, if EUROPEAN digits are encountered before any strong 1424 * directional text in the string, the context is presumed to be 1425 * EUROPEAN, and so the digits will not shape. 1426 * 1427 * @param ranges the specified Unicode ranges 1428 * @return a contextual shaper for the specified ranges 1429 * @throws NullPointerException if {@code ranges} is {@code null}. 1430 * @since 1.7 1431 */ 1432 public static NumericShaper getContextualShaper(Set<Range> ranges) { 1433 NumericShaper shaper = new NumericShaper(Range.EUROPEAN, ranges); 1434 shaper.mask = CONTEXTUAL_MASK; 1435 return shaper; 1436 } 1437 1438 /** 1439 * Returns a contextual shaper for the provided unicode range(s). 1440 * Latin-1 (EUROPEAN) digits will be converted to the decimal digits 1441 * corresponding to the range of the preceding text, if the 1442 * range is one of the provided ranges. Multiple ranges are 1443 * represented by or-ing the values together, for example, 1444 * {@code NumericShaper.ARABIC | NumericShaper.THAI}. The 1445 * shaper uses defaultContext as the starting context. 1446 * @param ranges the specified Unicode ranges 1447 * @param defaultContext the starting context, such as 1448 * {@code NumericShaper.EUROPEAN} 1449 * @return a shaper for the specified Unicode ranges. 1450 * @throws IllegalArgumentException if the specified 1451 * {@code defaultContext} is not a single valid range. 1452 */ 1453 public static NumericShaper getContextualShaper(int ranges, int defaultContext) { 1454 int key = getKeyFromMask(defaultContext); 1455 ranges |= CONTEXTUAL_MASK; 1456 return new NumericShaper(key, ranges); 1457 } 1458 1459 /** 1460 * Returns a contextual shaper for the provided Unicode range(s). 1461 * The Latin-1 (EUROPEAN) digits will be converted to the decimal 1462 * digits corresponding to the range of the preceding text, if the 1463 * range is one of the provided ranges. The shaper uses {@code 1464 * defaultContext} as the starting context. 1465 * 1466 * @param ranges the specified Unicode ranges 1467 * @param defaultContext the starting context, such as 1468 * {@code NumericShaper.Range.EUROPEAN} 1469 * @return a contextual shaper for the specified Unicode ranges. 1470 * @throws NullPointerException 1471 * if {@code ranges} or {@code defaultContext} is {@code null} 1472 * @since 1.7 1473 */ 1474 public static NumericShaper getContextualShaper(Set<Range> ranges, 1475 Range defaultContext) { 1476 if (defaultContext == null) { 1477 throw new NullPointerException(); 1478 } 1479 NumericShaper shaper = new NumericShaper(defaultContext, ranges); 1480 shaper.mask = CONTEXTUAL_MASK; 1481 return shaper; 1482 } 1483 1484 /** 1485 * Private constructor. 1486 */ 1487 private NumericShaper(int key, int mask) { 1488 this.key = key; 1489 this.mask = mask; 1490 } 1491 1492 private NumericShaper(Range defaultContext, Set<Range> ranges) { 1493 shapingRange = defaultContext; 1494 rangeSet = EnumSet.copyOf(ranges); // throws NPE if ranges is null. 1495 1496 // Give precedence to EASTERN_ARABIC if both ARABIC and 1497 // EASTERN_ARABIC are specified. 1498 if (rangeSet.contains(Range.EASTERN_ARABIC) 1499 && rangeSet.contains(Range.ARABIC)) { 1500 rangeSet.remove(Range.ARABIC); 1501 } 1502 1503 // As well as the above case, give precedence to TAI_THAM_THAM if both 1504 // TAI_THAM_HORA and TAI_THAM_THAM are specified. 1505 if (rangeSet.contains(Range.TAI_THAM_THAM) 1506 && rangeSet.contains(Range.TAI_THAM_HORA)) { 1507 rangeSet.remove(Range.TAI_THAM_HORA); 1508 } 1509 1510 rangeArray = rangeSet.toArray(new Range[rangeSet.size()]); 1511 if (rangeArray.length > BSEARCH_THRESHOLD) { 1512 // sort rangeArray for binary search 1513 Arrays.sort(rangeArray, 1514 new Comparator<Range>() { 1515 public int compare(Range s1, Range s2) { 1516 return s1.base > s2.base ? 1 : s1.base == s2.base ? 0 : -1; 1517 } 1518 }); 1519 } 1520 } 1521 1522 /** 1523 * Converts the digits in the text that occur between start and 1524 * start + count. 1525 * @param text an array of characters to convert 1526 * @param start the index into {@code text} to start 1527 * converting 1528 * @param count the number of characters in {@code text} 1529 * to convert 1530 * @throws IndexOutOfBoundsException if start or start + count is 1531 * out of bounds 1532 * @throws NullPointerException if text is null 1533 */ 1534 public void shape(char[] text, int start, int count) { 1535 checkParams(text, start, count); 1536 if (isContextual()) { 1537 if (rangeSet == null) { 1538 shapeContextually(text, start, count, key); 1539 } else { 1540 shapeContextually(text, start, count, shapingRange); 1541 } 1542 } else { 1543 shapeNonContextually(text, start, count); 1544 } 1545 } 1546 1547 /** 1548 * Converts the digits in the text that occur between start and 1549 * start + count, using the provided context. 1550 * Context is ignored if the shaper is not a contextual shaper. 1551 * @param text an array of characters 1552 * @param start the index into {@code text} to start 1553 * converting 1554 * @param count the number of characters in {@code text} 1555 * to convert 1556 * @param context the context to which to convert the 1557 * characters, such as {@code NumericShaper.EUROPEAN} 1558 * @throws IndexOutOfBoundsException if start or start + count is 1559 * out of bounds 1560 * @throws NullPointerException if text is null 1561 * @throws IllegalArgumentException if this is a contextual shaper 1562 * and the specified {@code context} is not a single valid 1563 * range. 1564 */ 1565 public void shape(char[] text, int start, int count, int context) { 1566 checkParams(text, start, count); 1567 if (isContextual()) { 1568 int ctxKey = getKeyFromMask(context); 1569 if (rangeSet == null) { 1570 shapeContextually(text, start, count, ctxKey); 1571 } else { 1572 shapeContextually(text, start, count, Range.values()[ctxKey]); 1573 } 1574 } else { 1575 shapeNonContextually(text, start, count); 1576 } 1577 } 1578 1579 /** 1580 * Converts the digits in the text that occur between {@code 1581 * start} and {@code start + count}, using the provided {@code 1582 * context}. {@code Context} is ignored if the shaper is not a 1583 * contextual shaper. 1584 * 1585 * @param text a {@code char} array 1586 * @param start the index into {@code text} to start converting 1587 * @param count the number of {@code char}s in {@code text} 1588 * to convert 1589 * @param context the context to which to convert the characters, 1590 * such as {@code NumericShaper.Range.EUROPEAN} 1591 * @throws IndexOutOfBoundsException 1592 * if {@code start} or {@code start + count} is out of bounds 1593 * @throws NullPointerException 1594 * if {@code text} or {@code context} is null 1595 * @since 1.7 1596 */ 1597 public void shape(char[] text, int start, int count, Range context) { 1598 checkParams(text, start, count); 1599 if (context == null) { 1600 throw new NullPointerException("context is null"); 1601 } 1602 1603 if (isContextual()) { 1604 if (rangeSet != null) { 1605 shapeContextually(text, start, count, context); 1606 } else { 1607 int key = Range.toRangeIndex(context); 1608 if (key >= 0) { 1609 shapeContextually(text, start, count, key); 1610 } else { 1611 shapeContextually(text, start, count, shapingRange); 1612 } 1613 } 1614 } else { 1615 shapeNonContextually(text, start, count); 1616 } 1617 } 1618 1619 private void checkParams(char[] text, int start, int count) { 1620 if (text == null) { 1621 throw new NullPointerException("text is null"); 1622 } 1623 if ((start < 0) 1624 || (start > text.length) 1625 || ((start + count) < 0) 1626 || ((start + count) > text.length)) { 1627 throw new IndexOutOfBoundsException( 1628 "bad start or count for text of length " + text.length); 1629 } 1630 } 1631 1632 /** 1633 * Returns a {@code boolean} indicating whether or not 1634 * this shaper shapes contextually. 1635 * @return {@code true} if this shaper is contextual; 1636 * {@code false} otherwise. 1637 */ 1638 public boolean isContextual() { 1639 return (mask & CONTEXTUAL_MASK) != 0; 1640 } 1641 1642 /** 1643 * Returns an {@code int} that ORs together the values for 1644 * all the ranges that will be shaped. 1645 * <p> 1646 * For example, to check if a shaper shapes to Arabic, you would use the 1647 * following: 1648 * <blockquote> 1649 * {@code if ((shaper.getRanges() & shaper.ARABIC) != 0) { ... } 1650 * </blockquote> 1651 * 1652 * <p>Note that this method supports only the bit mask-based 1653 * ranges. Call {@link #getRangeSet()} for the enum-based ranges. 1654 * 1655 * @return the values for all the ranges to be shaped. 1656 */ 1657 public int getRanges() { 1658 return mask & ~CONTEXTUAL_MASK; 1659 } 1660 1661 /** 1662 * Returns a {@code Set} representing all the Unicode ranges in 1663 * this {@code NumericShaper} that will be shaped. 1664 * 1665 * @return all the Unicode ranges to be shaped. 1666 * @since 1.7 1667 */ 1668 public Set<Range> getRangeSet() { 1669 if (rangeSet != null) { 1670 return EnumSet.copyOf(rangeSet); 1671 } 1672 return Range.maskToRangeSet(mask); 1673 } 1674 1675 /** 1676 * Perform non-contextual shaping. 1677 */ 1678 private void shapeNonContextually(char[] text, int start, int count) { 1679 int base; 1680 char minDigit = '0'; 1681 if (shapingRange != null) { 1682 base = shapingRange.getDigitBase(); 1683 minDigit += shapingRange.getNumericBase(); 1684 } else { 1685 base = bases[key]; 1686 if (key == ETHIOPIC_KEY) { 1687 minDigit++; // Ethiopic doesn't use decimal zero 1688 } 1689 } 1690 for (int i = start, e = start + count; i < e; ++i) { 1691 char c = text[i]; 1692 if (c >= minDigit && c <= '\u0039') { 1693 text[i] = (char)(c + base); 1694 } 1695 } 1696 } 1697 1698 /** 1699 * Perform contextual shaping. 1700 * Synchronized to protect caches used in getContextKey. 1701 */ 1702 private synchronized void shapeContextually(char[] text, int start, int count, int ctxKey) { 1703 1704 // if we don't support this context, then don't shape 1705 if ((mask & (1<<ctxKey)) == 0) { 1706 ctxKey = EUROPEAN_KEY; 1707 } 1708 int lastkey = ctxKey; 1709 1710 int base = bases[ctxKey]; 1711 char minDigit = ctxKey == ETHIOPIC_KEY ? '1' : '0'; // Ethiopic doesn't use decimal zero 1712 1713 synchronized (NumericShaper.class) { 1714 for (int i = start, e = start + count; i < e; ++i) { 1715 char c = text[i]; 1716 if (c >= minDigit && c <= '\u0039') { 1717 text[i] = (char)(c + base); 1718 } 1719 1720 if (isStrongDirectional(c)) { 1721 int newkey = getContextKey(c); 1722 if (newkey != lastkey) { 1723 lastkey = newkey; 1724 1725 ctxKey = newkey; 1726 if (((mask & EASTERN_ARABIC) != 0) && 1727 (ctxKey == ARABIC_KEY || 1728 ctxKey == EASTERN_ARABIC_KEY)) { 1729 ctxKey = EASTERN_ARABIC_KEY; 1730 } else if (((mask & ARABIC) != 0) && 1731 (ctxKey == ARABIC_KEY || 1732 ctxKey == EASTERN_ARABIC_KEY)) { 1733 ctxKey = ARABIC_KEY; 1734 } else if ((mask & (1<<ctxKey)) == 0) { 1735 ctxKey = EUROPEAN_KEY; 1736 } 1737 1738 base = bases[ctxKey]; 1739 1740 minDigit = ctxKey == ETHIOPIC_KEY ? '1' : '0'; // Ethiopic doesn't use decimal zero 1741 } 1742 } 1743 } 1744 } 1745 } 1746 1747 private void shapeContextually(char[] text, int start, int count, Range ctxKey) { 1748 // if we don't support the specified context, then don't shape. 1749 if (ctxKey == null || !rangeSet.contains(ctxKey)) { 1750 ctxKey = Range.EUROPEAN; 1751 } 1752 1753 Range lastKey = ctxKey; 1754 int base = ctxKey.getDigitBase(); 1755 char minDigit = (char)('0' + ctxKey.getNumericBase()); 1756 final int end = start + count; 1757 for (int i = start; i < end; ++i) { 1758 char c = text[i]; 1759 if (c >= minDigit && c <= '9') { 1760 text[i] = (char)(c + base); 1761 continue; 1762 } 1763 if (isStrongDirectional(c)) { 1764 ctxKey = rangeForCodePoint(c); 1765 if (ctxKey != lastKey) { 1766 lastKey = ctxKey; 1767 base = ctxKey.getDigitBase(); 1768 minDigit = (char)('0' + ctxKey.getNumericBase()); 1769 } 1770 } 1771 } 1772 } 1773 1774 /** 1775 * Returns a hash code for this shaper. 1776 * @return this shaper's hash code. 1777 * @see java.lang.Object#hashCode 1778 */ 1779 public int hashCode() { 1780 int hash = mask; 1781 if (rangeSet != null) { 1782 // Use the CONTEXTUAL_MASK bit only for the enum-based 1783 // NumericShaper. A deserialized NumericShaper might have 1784 // bit masks. 1785 hash &= CONTEXTUAL_MASK; 1786 hash ^= rangeSet.hashCode(); 1787 } 1788 return hash; 1789 } 1790 1791 /** 1792 * Returns {@code true} if the specified object is an instance of 1793 * {@code NumericShaper} and shapes identically to this one, 1794 * regardless of the range representations, the bit mask or the 1795 * enum. For example, the following code produces {@code "true"}. 1796 * <blockquote><pre> 1797 * NumericShaper ns1 = NumericShaper.getShaper(NumericShaper.ARABIC); 1798 * NumericShaper ns2 = NumericShaper.getShaper(NumericShaper.Range.ARABIC); 1799 * System.out.println(ns1.equals(ns2)); 1800 * </pre></blockquote> 1801 * 1802 * @param o the specified object to compare to this 1803 * {@code NumericShaper} 1804 * @return {@code true} if {@code o} is an instance 1805 * of {@code NumericShaper} and shapes in the same way; 1806 * {@code false} otherwise. 1807 * @see java.lang.Object#equals(java.lang.Object) 1808 */ 1809 public boolean equals(Object o) { 1810 if (o != null) { 1811 try { 1812 NumericShaper rhs = (NumericShaper)o; 1813 if (rangeSet != null) { 1814 if (rhs.rangeSet != null) { 1815 return isContextual() == rhs.isContextual() 1816 && rangeSet.equals(rhs.rangeSet) 1817 && shapingRange == rhs.shapingRange; 1818 } 1819 return isContextual() == rhs.isContextual() 1820 && rangeSet.equals(Range.maskToRangeSet(rhs.mask)) 1821 && shapingRange == Range.indexToRange(rhs.key); 1822 } else if (rhs.rangeSet != null) { 1823 Set<Range> rset = Range.maskToRangeSet(mask); 1824 Range srange = Range.indexToRange(key); 1825 return isContextual() == rhs.isContextual() 1826 && rset.equals(rhs.rangeSet) 1827 && srange == rhs.shapingRange; 1828 } 1829 return rhs.mask == mask && rhs.key == key; 1830 } 1831 catch (ClassCastException e) { 1832 } 1833 } 1834 return false; 1835 } 1836 1837 /** 1838 * Returns a {@code String} that describes this shaper. This method 1839 * is used for debugging purposes only. 1840 * @return a {@code String} describing this shaper. 1841 */ 1842 public String toString() { 1843 StringBuilder buf = new StringBuilder(super.toString()); 1844 1845 buf.append("[contextual:").append(isContextual()); 1846 1847 String[] keyNames = null; 1848 if (isContextual()) { 1849 buf.append(", context:"); 1850 buf.append(shapingRange == null ? Range.values()[key] : shapingRange); 1851 } 1852 1853 if (rangeSet == null) { 1854 buf.append(", range(s): "); 1855 boolean first = true; 1856 for (int i = 0; i < NUM_KEYS; ++i) { 1857 if ((mask & (1 << i)) != 0) { 1858 if (first) { 1859 first = false; 1860 } else { 1861 buf.append(", "); 1862 } 1863 buf.append(Range.values()[i]); 1864 } 1865 } 1866 } else { 1867 buf.append(", range set: ").append(rangeSet); 1868 } 1869 buf.append(']'); 1870 1871 return buf.toString(); 1872 } 1873 1874 /** 1875 * Returns the index of the high bit in value (assuming le, actually 1876 * power of 2 >= value). value must be positive. 1877 */ 1878 private static int getHighBit(int value) { 1879 if (value <= 0) { 1880 return -32; 1881 } 1882 1883 int bit = 0; 1884 1885 if (value >= 1 << 16) { 1886 value >>= 16; 1887 bit += 16; 1888 } 1889 1890 if (value >= 1 << 8) { 1891 value >>= 8; 1892 bit += 8; 1893 } 1894 1895 if (value >= 1 << 4) { 1896 value >>= 4; 1897 bit += 4; 1898 } 1899 1900 if (value >= 1 << 2) { 1901 value >>= 2; 1902 bit += 2; 1903 } 1904 1905 if (value >= 1 << 1) { 1906 bit += 1; 1907 } 1908 1909 return bit; 1910 } 1911 1912 /** 1913 * fast binary search over subrange of array. 1914 */ 1915 private static int search(int value, int[] array, int start, int length) 1916 { 1917 int power = 1 << getHighBit(length); 1918 int extra = length - power; 1919 int probe = power; 1920 int index = start; 1921 1922 if (value >= array[index + extra]) { 1923 index += extra; 1924 } 1925 1926 while (probe > 1) { 1927 probe >>= 1; 1928 1929 if (value >= array[index + probe]) { 1930 index += probe; 1931 } 1932 } 1933 1934 return index; 1935 } 1936 1937 /** 1938 * Converts the {@code NumericShaper.Range} enum-based parameters, 1939 * if any, to the bit mask-based counterparts and writes this 1940 * object to the {@code stream}. Any enum constants that have no 1941 * bit mask-based counterparts are ignored in the conversion. 1942 * 1943 * @param stream the output stream to write to 1944 * @throws IOException if an I/O error occurs while writing to {@code stream} 1945 * @since 1.7 1946 */ 1947 private void writeObject(ObjectOutputStream stream) throws IOException { 1948 if (shapingRange != null) { 1949 int index = Range.toRangeIndex(shapingRange); 1950 if (index >= 0) { 1951 key = index; 1952 } 1953 } 1954 if (rangeSet != null) { 1955 mask |= Range.toRangeMask(rangeSet); 1956 } 1957 stream.defaultWriteObject(); 1958 } 1959 }