1 /* 2 *************************************************************************** 3 * Copyright (C) 1999-2011 International Business Machines Corporation * 4 * and others. All rights reserved. * 5 *************************************************************************** 6 7 ********************************************************************** 8 * Date Name Description 9 * 10/22/99 alan Creation. 10 * 11/11/99 rgillam Complete port from Java. 11 ********************************************************************** 12 */ 13 14 #ifndef RBBI_H 15 #define RBBI_H 16 17 #include "unicode/utypes.h" 18 19 /** 20 * \file 21 * \brief C++ API: Rule Based Break Iterator 22 */ 23 24 #if !UCONFIG_NO_BREAK_ITERATION 25 26 #include "unicode/brkiter.h" 27 #include "unicode/udata.h" 28 #include "unicode/parseerr.h" 29 #include "unicode/schriter.h" 30 #include "unicode/uchriter.h" 31 32 33 struct UTrie; 34 35 U_NAMESPACE_BEGIN 36 37 /** @internal */ 38 struct RBBIDataHeader; 39 class RuleBasedBreakIteratorTables; 40 class BreakIterator; 41 class RBBIDataWrapper; 42 class UStack; 43 class LanguageBreakEngine; 44 class UnhandledEngine; 45 struct RBBIStateTable; 46 47 48 49 50 /** 51 * 52 * A subclass of BreakIterator whose behavior is specified using a list of rules. 53 * <p>Instances of this class are most commonly created by the factory methods of 54 * BreakIterator::createWordInstance(), BreakIterator::createLineInstance(), etc., 55 * and then used via the abstract API in class BreakIterator</p> 56 * 57 * <p>See the ICU User Guide for information on Break Iterator Rules.</p> 58 * 59 * <p>This class is not intended to be subclassed. (Class DictionaryBasedBreakIterator 60 * is a subclass, but that relationship is effectively internal to the ICU 61 * implementation. The subclassing interface to RulesBasedBreakIterator is 62 * not part of the ICU API, and may not remain stable.</p> 63 * 64 */ 65 class U_COMMON_API RuleBasedBreakIterator : public BreakIterator { 66 67 protected: 68 /** 69 * The UText through which this BreakIterator accesses the text 70 * @internal 71 */ 72 UText *fText; 73 74 /** 75 * A character iterator that refers to the same text as the UText, above. 76 * Only included for compatibility with old API, which was based on CharacterIterators. 77 * Value may be adopted from outside, or one of fSCharIter or fDCharIter, below. 78 */ 79 CharacterIterator *fCharIter; 80 81 /** 82 * When the input text is provided by a UnicodeString, this will point to 83 * a characterIterator that wraps that data. Needed only for the 84 * implementation of getText(), a backwards compatibility issue. 85 */ 86 StringCharacterIterator *fSCharIter; 87 88 /** 89 * When the input text is provided by a UText, this 90 * dummy CharacterIterator over an empty string will 91 * be returned from getText() 92 */ 93 UCharCharacterIterator *fDCharIter; 94 95 /** 96 * The rule data for this BreakIterator instance 97 * @internal 98 */ 99 RBBIDataWrapper *fData; 100 101 /** Index of the Rule {tag} values for the most recent match. 102 * @internal 103 */ 104 int32_t fLastRuleStatusIndex; 105 106 /** 107 * Rule tag value valid flag. 108 * Some iterator operations don't intrinsically set the correct tag value. 109 * This flag lets us lazily compute the value if we are ever asked for it. 110 * @internal 111 */ 112 UBool fLastStatusIndexValid; 113 114 /** 115 * Counter for the number of characters encountered with the "dictionary" 116 * flag set. 117 * @internal 118 */ 119 uint32_t fDictionaryCharCount; 120 121 /** 122 * When a range of characters is divided up using the dictionary, the break 123 * positions that are discovered are stored here, preventing us from having 124 * to use either the dictionary or the state table again until the iterator 125 * leaves this range of text. Has the most impact for line breaking. 126 * @internal 127 */ 128 int32_t* fCachedBreakPositions; 129 130 /** 131 * The number of elements in fCachedBreakPositions 132 * @internal 133 */ 134 int32_t fNumCachedBreakPositions; 135 136 /** 137 * if fCachedBreakPositions is not null, this indicates which item in the 138 * cache the current iteration position refers to 139 * @internal 140 */ 141 int32_t fPositionInCache; 142 143 /** 144 * 145 * If present, UStack of LanguageBreakEngine objects that might handle 146 * dictionary characters. Searched from top to bottom to find an object to 147 * handle a given character. 148 * @internal 149 */ 150 UStack *fLanguageBreakEngines; 151 152 /** 153 * 154 * If present, the special LanguageBreakEngine used for handling 155 * characters that are in the dictionary set, but not handled by any 156 * LangugageBreakEngine. 157 * @internal 158 */ 159 UnhandledEngine *fUnhandledBreakEngine; 160 161 /** 162 * 163 * The type of the break iterator, or -1 if it has not been set. 164 * @internal 165 */ 166 int32_t fBreakType; 167 168 protected: 169 //======================================================================= 170 // constructors 171 //======================================================================= 172 173 /** 174 * Constant to be used in the constructor 175 * RuleBasedBreakIterator(RBBIDataHeader*, EDontAdopt, UErrorCode &); 176 * which does not adopt the memory indicated by the RBBIDataHeader* 177 * parameter. 178 * 179 * @internal 180 */ 181 enum EDontAdopt { 182 kDontAdopt 183 }; 184 185 /** 186 * Constructor from a flattened set of RBBI data in malloced memory. 187 * RulesBasedBreakIterators built from a custom set of rules 188 * are created via this constructor; the rules are compiled 189 * into memory, then the break iterator is constructed here. 190 * 191 * The break iterator adopts the memory, and will 192 * free it when done. 193 * @internal 194 */ 195 RuleBasedBreakIterator(RBBIDataHeader* data, UErrorCode &status); 196 197 /** 198 * Constructor from a flattened set of RBBI data in memory which need not 199 * be malloced (e.g. it may be a memory-mapped file, etc.). 200 * 201 * This version does not adopt the memory, and does not 202 * free it when done. 203 * @internal 204 */ 205 RuleBasedBreakIterator(const RBBIDataHeader* data, enum EDontAdopt dontAdopt, UErrorCode &status); 206 207 208 friend class RBBIRuleBuilder; 209 /** @internal */ 210 friend class BreakIterator; 211 212 213 214 public: 215 216 /** Default constructor. Creates an empty shell of an iterator, with no 217 * rules or text to iterate over. Object can subsequently be assigned to. 218 * @stable ICU 2.2 219 */ 220 RuleBasedBreakIterator(); 221 222 /** 223 * Copy constructor. Will produce a break iterator with the same behavior, 224 * and which iterates over the same text, as the one passed in. 225 * @param that The RuleBasedBreakIterator passed to be copied 226 * @stable ICU 2.0 227 */ 228 RuleBasedBreakIterator(const RuleBasedBreakIterator& that); 229 230 /** 231 * Construct a RuleBasedBreakIterator from a set of rules supplied as a string. 232 * @param rules The break rules to be used. 233 * @param parseError In the event of a syntax error in the rules, provides the location 234 * within the rules of the problem. 235 * @param status Information on any errors encountered. 236 * @stable ICU 2.2 237 */ 238 RuleBasedBreakIterator( const UnicodeString &rules, 239 UParseError &parseError, 240 UErrorCode &status); 241 242 243 244 245 /** 246 * Contruct a RuleBasedBreakIterator from a set of precompiled binary rules. 247 * Binary rules are obtained from RulesBasedBreakIterator::getBinaryRules(). 248 * Construction of a break iterator in this way is substantially faster than 249 * constuction from source rules. 250 * 251 * Ownership of the storage containing the compiled rules remains with the 252 * caller of this function. The compiled rules must not be modified or 253 * deleted during the life of the break iterator. 254 * 255 * The compiled rules are not compatible across different major versions of ICU. 256 * The compiled rules are comaptible only between machines with the same 257 * byte ordering (little or big endian) and the same base character set family 258 * (ASCII or EBCDIC). 259 * 260 * @see #getBinaryRules 261 * @param compiledRules A pointer to the compiled break rules to be used. 262 * @param ruleLength The length of the compiled break rules, in bytes. This 263 * corresponds to the length value produced by getBinaryRules(). 264 * @param status Information on any errors encountered, including invalid 265 * binary rules. 266 * @draft ICU 4.8 267 */ 268 RuleBasedBreakIterator(const uint8_t *compiledRules, 269 uint32_t ruleLength, 270 UErrorCode &status); 271 272 273 /** 274 * This constructor uses the udata interface to create a BreakIterator 275 * whose internal tables live in a memory-mapped file. "image" is an 276 * ICU UDataMemory handle for the pre-compiled break iterator tables. 277 * @param image handle to the memory image for the break iterator data. 278 * Ownership of the UDataMemory handle passes to the Break Iterator, 279 * which will be responsible for closing it when it is no longer needed. 280 * @param status Information on any errors encountered. 281 * @see udata_open 282 * @see #getBinaryRules 283 * @stable ICU 2.8 284 */ 285 RuleBasedBreakIterator(UDataMemory* image, UErrorCode &status); 286 287 /** 288 * Destructor 289 * @stable ICU 2.0 290 */ 291 virtual ~RuleBasedBreakIterator(); 292 293 /** 294 * Assignment operator. Sets this iterator to have the same behavior, 295 * and iterate over the same text, as the one passed in. 296 * @param that The RuleBasedBreakItertor passed in 297 * @return the newly created RuleBasedBreakIterator 298 * @stable ICU 2.0 299 */ 300 RuleBasedBreakIterator& operator=(const RuleBasedBreakIterator& that); 301 302 /** 303 * Equality operator. Returns TRUE if both BreakIterators are of the 304 * same class, have the same behavior, and iterate over the same text. 305 * @param that The BreakIterator to be compared for equality 306 * @return TRUE if both BreakIterators are of the 307 * same class, have the same behavior, and iterate over the same text. 308 * @stable ICU 2.0 309 */ 310 virtual UBool operator==(const BreakIterator& that) const; 311 312 /** 313 * Not-equal operator. If operator== returns TRUE, this returns FALSE, 314 * and vice versa. 315 * @param that The BreakIterator to be compared for inequality 316 * @return TRUE if both BreakIterators are not same. 317 * @stable ICU 2.0 318 */ 319 UBool operator!=(const BreakIterator& that) const; 320 321 /** 322 * Returns a newly-constructed RuleBasedBreakIterator with the same 323 * behavior, and iterating over the same text, as this one. 324 * Differs from the copy constructor in that it is polymorphic, and 325 * will correctly clone (copy) a derived class. 326 * clone() is thread safe. Multiple threads may simultaeneously 327 * clone the same source break iterator. 328 * @return a newly-constructed RuleBasedBreakIterator 329 * @stable ICU 2.0 330 */ 331 virtual BreakIterator* clone() const; 332 333 /** 334 * Compute a hash code for this BreakIterator 335 * @return A hash code 336 * @stable ICU 2.0 337 */ 338 virtual int32_t hashCode(void) const; 339 340 /** 341 * Returns the description used to create this iterator 342 * @return the description used to create this iterator 343 * @stable ICU 2.0 344 */ 345 virtual const UnicodeString& getRules(void) const; 346 347 //======================================================================= 348 // BreakIterator overrides 349 //======================================================================= 350 351 /** 352 * <p> 353 * Return a CharacterIterator over the text being analyzed. 354 * The returned character iterator is owned by the break iterator, and must 355 * not be deleted by the caller. Repeated calls to this function may 356 * return the same CharacterIterator. 357 * </p> 358 * <p> 359 * The returned character iterator must not be used concurrently with 360 * the break iterator. If concurrent operation is needed, clone the 361 * returned character iterator first and operate on the clone. 362 * </p> 363 * <p> 364 * When the break iterator is operating on text supplied via a UText, 365 * this function will fail. Lacking any way to signal failures, it 366 * returns an CharacterIterator containing no text. 367 * The function getUText() provides similar functionality, 368 * is reliable, and is more efficient. 369 * </p> 370 * 371 * TODO: deprecate this function? 372 * 373 * @return An iterator over the text being analyzed. 374 * @stable ICU 2.0 375 */ 376 virtual CharacterIterator& getText(void) const; 377 378 379 /** 380 * Get a UText for the text being analyzed. 381 * The returned UText is a shallow clone of the UText used internally 382 * by the break iterator implementation. It can safely be used to 383 * access the text without impacting any break iterator operations, 384 * but the underlying text itself must not be altered. 385 * 386 * @param fillIn A UText to be filled in. If NULL, a new UText will be 387 * allocated to hold the result. 388 * @param status receives any error codes. 389 * @return The current UText for this break iterator. If an input 390 * UText was provided, it will always be returned. 391 * @stable ICU 3.4 392 */ 393 virtual UText *getUText(UText *fillIn, UErrorCode &status) const; 394 395 /** 396 * Set the iterator to analyze a new piece of text. This function resets 397 * the current iteration position to the beginning of the text. 398 * @param newText An iterator over the text to analyze. The BreakIterator 399 * takes ownership of the character iterator. The caller MUST NOT delete it! 400 * @stable ICU 2.0 401 */ 402 virtual void adoptText(CharacterIterator* newText); 403 404 /** 405 * Set the iterator to analyze a new piece of text. This function resets 406 * the current iteration position to the beginning of the text. 407 * @param newText The text to analyze. 408 * @stable ICU 2.0 409 */ 410 virtual void setText(const UnicodeString& newText); 411 412 /** 413 * Reset the break iterator to operate over the text represented by 414 * the UText. The iterator position is reset to the start. 415 * 416 * This function makes a shallow clone of the supplied UText. This means 417 * that the caller is free to immediately close or otherwise reuse the 418 * Utext that was passed as a parameter, but that the underlying text itself 419 * must not be altered while being referenced by the break iterator. 420 * 421 * @param text The UText used to change the text. 422 * @param status Receives any error codes. 423 * @stable ICU 3.4 424 */ 425 virtual void setText(UText *text, UErrorCode &status); 426 427 /** 428 * Sets the current iteration position to the beginning of the text. 429 * @return The offset of the beginning of the text. 430 * @stable ICU 2.0 431 */ 432 virtual int32_t first(void); 433 434 /** 435 * Sets the current iteration position to the end of the text. 436 * @return The text's past-the-end offset. 437 * @stable ICU 2.0 438 */ 439 virtual int32_t last(void); 440 441 /** 442 * Advances the iterator either forward or backward the specified number of steps. 443 * Negative values move backward, and positive values move forward. This is 444 * equivalent to repeatedly calling next() or previous(). 445 * @param n The number of steps to move. The sign indicates the direction 446 * (negative is backwards, and positive is forwards). 447 * @return The character offset of the boundary position n boundaries away from 448 * the current one. 449 * @stable ICU 2.0 450 */ 451 virtual int32_t next(int32_t n); 452 453 /** 454 * Advances the iterator to the next boundary position. 455 * @return The position of the first boundary after this one. 456 * @stable ICU 2.0 457 */ 458 virtual int32_t next(void); 459 460 /** 461 * Moves the iterator backwards, to the last boundary preceding this one. 462 * @return The position of the last boundary position preceding this one. 463 * @stable ICU 2.0 464 */ 465 virtual int32_t previous(void); 466 467 /** 468 * Sets the iterator to refer to the first boundary position following 469 * the specified position. 470 * @param offset The position from which to begin searching for a break position. 471 * @return The position of the first break after the current position. 472 * @stable ICU 2.0 473 */ 474 virtual int32_t following(int32_t offset); 475 476 /** 477 * Sets the iterator to refer to the last boundary position before the 478 * specified position. 479 * @param offset The position to begin searching for a break from. 480 * @return The position of the last boundary before the starting position. 481 * @stable ICU 2.0 482 */ 483 virtual int32_t preceding(int32_t offset); 484 485 /** 486 * Returns true if the specfied position is a boundary position. As a side 487 * effect, leaves the iterator pointing to the first boundary position at 488 * or after "offset". 489 * @param offset the offset to check. 490 * @return True if "offset" is a boundary position. 491 * @stable ICU 2.0 492 */ 493 virtual UBool isBoundary(int32_t offset); 494 495 /** 496 * Returns the current iteration position. 497 * @return The current iteration position. 498 * @stable ICU 2.0 499 */ 500 virtual int32_t current(void) const; 501 502 503 /** 504 * Return the status tag from the break rule that determined the most recently 505 * returned break position. For break rules that do not specify a 506 * status, a default value of 0 is returned. If more than one break rule 507 * would cause a boundary to be located at some position in the text, 508 * the numerically largest of the applicable status values is returned. 509 * <p> 510 * Of the standard types of ICU break iterators, only word break and 511 * line break provide status values. The values are defined in 512 * the header file ubrk.h. For Word breaks, the status allows distinguishing between words 513 * that contain alphabetic letters, "words" that appear to be numbers, 514 * punctuation and spaces, words containing ideographic characters, and 515 * more. For Line Break, the status distinguishes between hard (mandatory) breaks 516 * and soft (potential) break positions. 517 * <p> 518 * <code>getRuleStatus()</code> can be called after obtaining a boundary 519 * position from <code>next()</code>, <code>previous()</code>, or 520 * any other break iterator functions that returns a boundary position. 521 * <p> 522 * When creating custom break rules, one is free to define whatever 523 * status values may be convenient for the application. 524 * <p> 525 * Note: this function is not thread safe. It should not have been 526 * declared const, and the const remains only for compatibility 527 * reasons. (The function is logically const, but not bit-wise const). 528 * <p> 529 * @return the status from the break rule that determined the most recently 530 * returned break position. 531 * 532 * @see UWordBreak 533 * @stable ICU 2.2 534 */ 535 virtual int32_t getRuleStatus() const; 536 537 /** 538 * Get the status (tag) values from the break rule(s) that determined the most 539 * recently returned break position. 540 * <p> 541 * The returned status value(s) are stored into an array provided by the caller. 542 * The values are stored in sorted (ascending) order. 543 * If the capacity of the output array is insufficient to hold the data, 544 * the output will be truncated to the available length, and a 545 * U_BUFFER_OVERFLOW_ERROR will be signaled. 546 * 547 * @param fillInVec an array to be filled in with the status values. 548 * @param capacity the length of the supplied vector. A length of zero causes 549 * the function to return the number of status values, in the 550 * normal way, without attemtping to store any values. 551 * @param status receives error codes. 552 * @return The number of rule status values from rules that determined 553 * the most recent boundary returned by the break iterator. 554 * In the event of a U_BUFFER_OVERFLOW_ERROR, the return value 555 * is the total number of status values that were available, 556 * not the reduced number that were actually returned. 557 * @see getRuleStatus 558 * @stable ICU 3.0 559 */ 560 virtual int32_t getRuleStatusVec(int32_t *fillInVec, int32_t capacity, UErrorCode &status); 561 562 /** 563 * Returns a unique class ID POLYMORPHICALLY. Pure virtual override. 564 * This method is to implement a simple version of RTTI, since not all 565 * C++ compilers support genuine RTTI. Polymorphic operator==() and 566 * clone() methods call this method. 567 * 568 * @return The class ID for this object. All objects of a 569 * given class have the same class ID. Objects of 570 * other classes have different class IDs. 571 * @stable ICU 2.0 572 */ 573 virtual UClassID getDynamicClassID(void) const; 574 575 /** 576 * Returns the class ID for this class. This is useful only for 577 * comparing to a return value from getDynamicClassID(). For example: 578 * 579 * Base* polymorphic_pointer = createPolymorphicObject(); 580 * if (polymorphic_pointer->getDynamicClassID() == 581 * Derived::getStaticClassID()) ... 582 * 583 * @return The class ID for all objects of this class. 584 * @stable ICU 2.0 585 */ 586 static UClassID U_EXPORT2 getStaticClassID(void); 587 588 /* 589 * Create a clone (copy) of this break iterator in memory provided 590 * by the caller. The idea is to increase performance by avoiding 591 * a storage allocation. Use of this functoin is NOT RECOMMENDED. 592 * Performance gains are minimal, and correct buffer management is 593 * tricky. Use clone() instead. 594 * 595 * @param stackBuffer The pointer to the memory into which the cloned object 596 * should be placed. If NULL, allocate heap memory 597 * for the cloned object. 598 * @param BufferSize The size of the buffer. If zero, return the required 599 * buffer size, but do not clone the object. If the 600 * size was too small (but not zero), allocate heap 601 * storage for the cloned object. 602 * 603 * @param status Error status. U_SAFECLONE_ALLOCATED_WARNING will be 604 * returned if the the provided buffer was too small, and 605 * the clone was therefore put on the heap. 606 * 607 * @return Pointer to the clone object. This may differ from the stackBuffer 608 * address if the byte alignment of the stack buffer was not suitable 609 * or if the stackBuffer was too small to hold the clone. 610 * @stable ICU 2.0 611 */ 612 virtual BreakIterator * createBufferClone(void *stackBuffer, 613 int32_t &BufferSize, 614 UErrorCode &status); 615 616 617 /** 618 * Return the binary form of compiled break rules, 619 * which can then be used to create a new break iterator at some 620 * time in the future. Creating a break iterator from pre-compiled rules 621 * is much faster than building one from the source form of the 622 * break rules. 623 * 624 * The binary data can only be used with the same version of ICU 625 * and on the same platform type (processor endian-ness) 626 * 627 * @param length Returns the length of the binary data. (Out paramter.) 628 * 629 * @return A pointer to the binary (compiled) rule data. The storage 630 * belongs to the RulesBasedBreakIterator object, not the 631 * caller, and must not be modified or deleted. 632 * @draft ICU 4.8 633 */ 634 virtual const uint8_t *getBinaryRules(uint32_t &length); 635 636 637 protected: 638 //======================================================================= 639 // implementation 640 //======================================================================= 641 /** 642 * Dumps caches and performs other actions associated with a complete change 643 * in text or iteration position. 644 * @internal 645 */ 646 virtual void reset(void); 647 648 #if 0 649 /** 650 * Return true if the category lookup for this char 651 * indicates that it is in the set of dictionary lookup chars. 652 * This function is intended for use by dictionary based break iterators. 653 * @return true if the category lookup for this char 654 * indicates that it is in the set of dictionary lookup chars. 655 * @internal 656 */ 657 virtual UBool isDictionaryChar(UChar32); 658 659 /** 660 * Get the type of the break iterator. 661 * @internal 662 */ 663 virtual int32_t getBreakType() const; 664 #endif 665 666 /** 667 * Set the type of the break iterator. 668 * @internal 669 */ 670 virtual void setBreakType(int32_t type); 671 672 /** 673 * Common initialization function, used by constructors and bufferClone. 674 * (Also used by DictionaryBasedBreakIterator::createBufferClone().) 675 * @internal 676 */ 677 void init(); 678 679 private: 680 681 /** 682 * This method backs the iterator back up to a "safe position" in the text. 683 * This is a position that we know, without any context, must be a break position. 684 * The various calling methods then iterate forward from this safe position to 685 * the appropriate position to return. (For more information, see the description 686 * of buildBackwardsStateTable() in RuleBasedBreakIterator.Builder.) 687 * @param statetable state table used of moving backwards 688 * @internal 689 */ 690 int32_t handlePrevious(const RBBIStateTable *statetable); 691 692 /** 693 * This method is the actual implementation of the next() method. All iteration 694 * vectors through here. This method initializes the state machine to state 1 695 * and advances through the text character by character until we reach the end 696 * of the text or the state machine transitions to state 0. We update our return 697 * value every time the state machine passes through a possible end state. 698 * @param statetable state table used of moving forwards 699 * @internal 700 */ 701 int32_t handleNext(const RBBIStateTable *statetable); 702 703 protected: 704 705 /** 706 * This is the function that actually implements dictionary-based 707 * breaking. Covering at least the range from startPos to endPos, 708 * it checks for dictionary characters, and if it finds them determines 709 * the appropriate object to deal with them. It may cache found breaks in 710 * fCachedBreakPositions as it goes. It may well also look at text outside 711 * the range startPos to endPos. 712 * If going forward, endPos is the normal Unicode break result, and 713 * if goind in reverse, startPos is the normal Unicode break result 714 * @param startPos The start position of a range of text 715 * @param endPos The end position of a range of text 716 * @param reverse The call is for the reverse direction 717 * @internal 718 */ 719 int32_t checkDictionary(int32_t startPos, int32_t endPos, UBool reverse); 720 721 private: 722 723 /** 724 * This function returns the appropriate LanguageBreakEngine for a 725 * given character c. 726 * @param c A character in the dictionary set 727 * @internal 728 */ 729 const LanguageBreakEngine *getLanguageBreakEngine(UChar32 c); 730 731 /** 732 * @internal 733 */ 734 void makeRuleStatusValid(); 735 736 }; 737 738 //------------------------------------------------------------------------------ 739 // 740 // Inline Functions Definitions ... 741 // 742 //------------------------------------------------------------------------------ 743 744 inline UBool RuleBasedBreakIterator::operator!=(const BreakIterator& that) const { 745 return !operator==(that); 746 } 747 748 U_NAMESPACE_END 749 750 #endif /* #if !UCONFIG_NO_BREAK_ITERATION */ 751 752 #endif 753
