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1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 ********************************************************************************
5 * Copyright (C) 1997-2016, International Business Machines
6 * Corporation and others. All Rights Reserved.
7 ********************************************************************************
8 *
9 * File brkiter.h
10 *
11 * Modification History:
12 *
13 * Date Name Description
14 * 02/18/97 aliu Added typedef for TextCount. Made DONE const.
15 * 05/07/97 aliu Fixed DLL declaration.
16 * 07/09/97 jfitz Renamed BreakIterator and interface synced with JDK
17 * 08/11/98 helena Sync-up JDK1.2.
18 * 01/13/2000 helena Added UErrorCode parameter to createXXXInstance methods.
19 ********************************************************************************
20 */
21
22 #ifndef BRKITER_H
23 #define BRKITER_H
24
25 #include "unicode/utypes.h"
26
27 /**
28 * \file
29 * \brief C++ API: Break Iterator.
30 */
31
32 #include "unicode/utypes.h"
33
34 #if U_SHOW_CPLUSPLUS_API
35
36 #if UCONFIG_NO_BREAK_ITERATION
37
38 U_NAMESPACE_BEGIN
39
40 /*
41 * Allow the declaration of APIs with pointers to BreakIterator
42 * even when break iteration is removed from the build.
43 */
44 class BreakIterator;
45
46 U_NAMESPACE_END
47
48 #else
49
50 #include "unicode/uobject.h"
51 #include "unicode/unistr.h"
52 #include "unicode/chariter.h"
53 #include "unicode/locid.h"
54 #include "unicode/ubrk.h"
55 #include "unicode/strenum.h"
56 #include "unicode/utext.h"
57 #include "unicode/umisc.h"
58
59 U_NAMESPACE_BEGIN
60
61 /**
62 * The BreakIterator class implements methods for finding the location
63 * of boundaries in text. BreakIterator is an abstract base class.
64 * Instances of BreakIterator maintain a current position and scan over
65 * text returning the index of characters where boundaries occur.
66 * <p>
67 * Line boundary analysis determines where a text string can be broken
68 * when line-wrapping. The mechanism correctly handles punctuation and
69 * hyphenated words.
70 * <p>
71 * Sentence boundary analysis allows selection with correct
72 * interpretation of periods within numbers and abbreviations, and
73 * trailing punctuation marks such as quotation marks and parentheses.
74 * <p>
75 * Word boundary analysis is used by search and replace functions, as
76 * well as within text editing applications that allow the user to
77 * select words with a double click. Word selection provides correct
78 * interpretation of punctuation marks within and following
79 * words. Characters that are not part of a word, such as symbols or
80 * punctuation marks, have word-breaks on both sides.
81 * <p>
82 * Character boundary analysis allows users to interact with
83 * characters as they expect to, for example, when moving the cursor
84 * through a text string. Character boundary analysis provides correct
85 * navigation of through character strings, regardless of how the
86 * character is stored. For example, an accented character might be
87 * stored as a base character and a diacritical mark. What users
88 * consider to be a character can differ between languages.
89 * <p>
90 * The text boundary positions are found according to the rules
91 * described in Unicode Standard Annex #29, Text Boundaries, and
92 * Unicode Standard Annex #14, Line Breaking Properties. These
93 * are available at http://www.unicode.org/reports/tr14/ and
94 * http://www.unicode.org/reports/tr29/.
95 * <p>
96 * In addition to the C++ API defined in this header file, a
97 * plain C API with equivalent functionality is defined in the
98 * file ubrk.h
99 * <p>
100 * Code snippets illustrating the use of the Break Iterator APIs
101 * are available in the ICU User Guide,
102 * http://icu-project.org/userguide/boundaryAnalysis.html
103 * and in the sample program icu/source/samples/break/break.cpp
104 *
105 */
106 class U_COMMON_API BreakIterator : public UObject {
107 public:
108 /**
109 * destructor
110 * @stable ICU 2.0
111 */
112 virtual ~BreakIterator();
113
114 /**
115 * Return true if another object is semantically equal to this
116 * one. The other object should be an instance of the same subclass of
117 * BreakIterator. Objects of different subclasses are considered
118 * unequal.
119 * <P>
120 * Return true if this BreakIterator is at the same position in the
121 * same text, and is the same class and type (word, line, etc.) of
122 * BreakIterator, as the argument. Text is considered the same if
123 * it contains the same characters, it need not be the same
124 * object, and styles are not considered.
125 * @stable ICU 2.0
126 */
127 virtual UBool operator==(const BreakIterator&) const = 0;
128
129 /**
130 * Returns the complement of the result of operator==
131 * @param rhs The BreakIterator to be compared for inequality
132 * @return the complement of the result of operator==
133 * @stable ICU 2.0
134 */
135 UBool operator!=(const BreakIterator& rhs) const { return !operator==(rhs); }
136
137 /**
138 * Return a polymorphic copy of this object. This is an abstract
139 * method which subclasses implement.
140 * @stable ICU 2.0
141 */
142 virtual BreakIterator* clone() const = 0;
143
144 /**
145 * Return a polymorphic class ID for this object. Different subclasses
146 * will return distinct unequal values.
147 * @stable ICU 2.0
148 */
149 virtual UClassID getDynamicClassID(void) const = 0;
150
151 /**
152 * Return a CharacterIterator over the text being analyzed.
153 * @stable ICU 2.0
154 */
155 virtual CharacterIterator& getText(void) const = 0;
156
157
158 /**
159 * Get a UText for the text being analyzed.
160 * The returned UText is a shallow clone of the UText used internally
161 * by the break iterator implementation. It can safely be used to
162 * access the text without impacting any break iterator operations,
163 * but the underlying text itself must not be altered.
164 *
165 * @param fillIn A UText to be filled in. If NULL, a new UText will be
166 * allocated to hold the result.
167 * @param status receives any error codes.
168 * @return The current UText for this break iterator. If an input
169 * UText was provided, it will always be returned.
170 * @stable ICU 3.4
171 */
172 virtual UText *getUText(UText *fillIn, UErrorCode &status) const = 0;
173
174 /**
175 * Change the text over which this operates. The text boundary is
176 * reset to the start.
177 *
178 * The BreakIterator will retain a reference to the supplied string.
179 * The caller must not modify or delete the text while the BreakIterator
180 * retains the reference.
181 *
182 * @param text The UnicodeString used to change the text.
183 * @stable ICU 2.0
184 */
185 virtual void setText(const UnicodeString &text) = 0;
186
187 /**
188 * Reset the break iterator to operate over the text represented by
189 * the UText. The iterator position is reset to the start.
190 *
191 * This function makes a shallow clone of the supplied UText. This means
192 * that the caller is free to immediately close or otherwise reuse the
193 * Utext that was passed as a parameter, but that the underlying text itself
194 * must not be altered while being referenced by the break iterator.
195 *
196 * All index positions returned by break iterator functions are
197 * native indices from the UText. For example, when breaking UTF-8
198 * encoded text, the break positions returned by next(), previous(), etc.
199 * will be UTF-8 string indices, not UTF-16 positions.
200 *
201 * @param text The UText used to change the text.
202 * @param status receives any error codes.
203 * @stable ICU 3.4
204 */
205 virtual void setText(UText *text, UErrorCode &status) = 0;
206
207 /**
208 * Change the text over which this operates. The text boundary is
209 * reset to the start.
210 * Note that setText(UText *) provides similar functionality to this function,
211 * and is more efficient.
212 * @param it The CharacterIterator used to change the text.
213 * @stable ICU 2.0
214 */
215 virtual void adoptText(CharacterIterator* it) = 0;
216
217 enum {
218 /**
219 * DONE is returned by previous() and next() after all valid
220 * boundaries have been returned.
221 * @stable ICU 2.0
222 */
223 DONE = (int32_t)-1
224 };
225
226 /**
227 * Sets the current iteration position to the beginning of the text, position zero.
228 * @return The offset of the beginning of the text, zero.
229 * @stable ICU 2.0
230 */
231 virtual int32_t first(void) = 0;
232
233 /**
234 * Set the iterator position to the index immediately BEYOND the last character in the text being scanned.
235 * @return The index immediately BEYOND the last character in the text being scanned.
236 * @stable ICU 2.0
237 */
238 virtual int32_t last(void) = 0;
239
240 /**
241 * Set the iterator position to the boundary preceding the current boundary.
242 * @return The character index of the previous text boundary or DONE if all
243 * boundaries have been returned.
244 * @stable ICU 2.0
245 */
246 virtual int32_t previous(void) = 0;
247
248 /**
249 * Advance the iterator to the boundary following the current boundary.
250 * @return The character index of the next text boundary or DONE if all
251 * boundaries have been returned.
252 * @stable ICU 2.0
253 */
254 virtual int32_t next(void) = 0;
255
256 /**
257 * Return character index of the current iterator position within the text.
258 * @return The boundary most recently returned.
259 * @stable ICU 2.0
260 */
261 virtual int32_t current(void) const = 0;
262
263 /**
264 * Advance the iterator to the first boundary following the specified offset.
265 * The value returned is always greater than the offset or
266 * the value BreakIterator.DONE
267 * @param offset the offset to begin scanning.
268 * @return The first boundary after the specified offset.
269 * @stable ICU 2.0
270 */
271 virtual int32_t following(int32_t offset) = 0;
272
273 /**
274 * Set the iterator position to the first boundary preceding the specified offset.
275 * The value returned is always smaller than the offset or
276 * the value BreakIterator.DONE
277 * @param offset the offset to begin scanning.
278 * @return The first boundary before the specified offset.
279 * @stable ICU 2.0
280 */
281 virtual int32_t preceding(int32_t offset) = 0;
282
283 /**
284 * Return true if the specified position is a boundary position.
285 * As a side effect, the current position of the iterator is set
286 * to the first boundary position at or following the specified offset.
287 * @param offset the offset to check.
288 * @return True if "offset" is a boundary position.
289 * @stable ICU 2.0
290 */
291 virtual UBool isBoundary(int32_t offset) = 0;
292
293 /**
294 * Set the iterator position to the nth boundary from the current boundary
295 * @param n the number of boundaries to move by. A value of 0
296 * does nothing. Negative values move to previous boundaries
297 * and positive values move to later boundaries.
298 * @return The new iterator position, or
299 * DONE if there are fewer than |n| boundaries in the specified direction.
300 * @stable ICU 2.0
301 */
302 virtual int32_t next(int32_t n) = 0;
303
304 /**
305 * For RuleBasedBreakIterators, return the status tag from the break rule
306 * that determined the boundary at the current iteration position.
307 * <p>
308 * For break iterator types that do not support a rule status,
309 * a default value of 0 is returned.
310 * <p>
311 * @return the status from the break rule that determined the boundary at
312 * the current iteration position.
313 * @see RuleBaseBreakIterator::getRuleStatus()
314 * @see UWordBreak
315 * @stable ICU 52
316 */
317 virtual int32_t getRuleStatus() const;
318
319 /**
320 * For RuleBasedBreakIterators, get the status (tag) values from the break rule(s)
321 * that determined the boundary at the current iteration position.
322 * <p>
323 * For break iterator types that do not support rule status,
324 * no values are returned.
325 * <p>
326 * The returned status value(s) are stored into an array provided by the caller.
327 * The values are stored in sorted (ascending) order.
328 * If the capacity of the output array is insufficient to hold the data,
329 * the output will be truncated to the available length, and a
330 * U_BUFFER_OVERFLOW_ERROR will be signaled.
331 * <p>
332 * @see RuleBaseBreakIterator::getRuleStatusVec
333 *
334 * @param fillInVec an array to be filled in with the status values.
335 * @param capacity the length of the supplied vector. A length of zero causes
336 * the function to return the number of status values, in the
337 * normal way, without attempting to store any values.
338 * @param status receives error codes.
339 * @return The number of rule status values from rules that determined
340 * the boundary at the current iteration position.
341 * In the event of a U_BUFFER_OVERFLOW_ERROR, the return value
342 * is the total number of status values that were available,
343 * not the reduced number that were actually returned.
344 * @see getRuleStatus
345 * @stable ICU 52
346 */
347 virtual int32_t getRuleStatusVec(int32_t *fillInVec, int32_t capacity, UErrorCode &status);
348
349 /**
350 * Create BreakIterator for word-breaks using the given locale.
351 * Returns an instance of a BreakIterator implementing word breaks.
352 * WordBreak is useful for word selection (ex. double click)
353 * @param where the locale.
354 * @param status the error code
355 * @return A BreakIterator for word-breaks. The UErrorCode& status
356 * parameter is used to return status information to the user.
357 * To check whether the construction succeeded or not, you should check
358 * the value of U_SUCCESS(err). If you wish more detailed information, you
359 * can check for informational error results which still indicate success.
360 * U_USING_FALLBACK_WARNING indicates that a fall back locale was used. For
361 * example, 'de_CH' was requested, but nothing was found there, so 'de' was
362 * used. U_USING_DEFAULT_WARNING indicates that the default locale data was
363 * used; neither the requested locale nor any of its fall back locales
364 * could be found.
365 * The caller owns the returned object and is responsible for deleting it.
366 * @stable ICU 2.0
367 */
368 static BreakIterator* U_EXPORT2
369 createWordInstance(const Locale& where, UErrorCode& status);
370
371 /**
372 * Create BreakIterator for line-breaks using specified locale.
373 * Returns an instance of a BreakIterator implementing line breaks. Line
374 * breaks are logically possible line breaks, actual line breaks are
375 * usually determined based on display width.
376 * LineBreak is useful for word wrapping text.
377 * @param where the locale.
378 * @param status The error code.
379 * @return A BreakIterator for line-breaks. The UErrorCode& status
380 * parameter is used to return status information to the user.
381 * To check whether the construction succeeded or not, you should check
382 * the value of U_SUCCESS(err). If you wish more detailed information, you
383 * can check for informational error results which still indicate success.
384 * U_USING_FALLBACK_WARNING indicates that a fall back locale was used. For
385 * example, 'de_CH' was requested, but nothing was found there, so 'de' was
386 * used. U_USING_DEFAULT_WARNING indicates that the default locale data was
387 * used; neither the requested locale nor any of its fall back locales
388 * could be found.
389 * The caller owns the returned object and is responsible for deleting it.
390 * @stable ICU 2.0
391 */
392 static BreakIterator* U_EXPORT2
393 createLineInstance(const Locale& where, UErrorCode& status);
394
395 /**
396 * Create BreakIterator for character-breaks using specified locale
397 * Returns an instance of a BreakIterator implementing character breaks.
398 * Character breaks are boundaries of combining character sequences.
399 * @param where the locale.
400 * @param status The error code.
401 * @return A BreakIterator for character-breaks. The UErrorCode& status
402 * parameter is used to return status information to the user.
403 * To check whether the construction succeeded or not, you should check
404 * the value of U_SUCCESS(err). If you wish more detailed information, you
405 * can check for informational error results which still indicate success.
406 * U_USING_FALLBACK_WARNING indicates that a fall back locale was used. For
407 * example, 'de_CH' was requested, but nothing was found there, so 'de' was
408 * used. U_USING_DEFAULT_WARNING indicates that the default locale data was
409 * used; neither the requested locale nor any of its fall back locales
410 * could be found.
411 * The caller owns the returned object and is responsible for deleting it.
412 * @stable ICU 2.0
413 */
414 static BreakIterator* U_EXPORT2
415 createCharacterInstance(const Locale& where, UErrorCode& status);
416
417 /**
418 * Create BreakIterator for sentence-breaks using specified locale
419 * Returns an instance of a BreakIterator implementing sentence breaks.
420 * @param where the locale.
421 * @param status The error code.
422 * @return A BreakIterator for sentence-breaks. The UErrorCode& status
423 * parameter is used to return status information to the user.
424 * To check whether the construction succeeded or not, you should check
425 * the value of U_SUCCESS(err). If you wish more detailed information, you
426 * can check for informational error results which still indicate success.
427 * U_USING_FALLBACK_WARNING indicates that a fall back locale was used. For
428 * example, 'de_CH' was requested, but nothing was found there, so 'de' was
429 * used. U_USING_DEFAULT_WARNING indicates that the default locale data was
430 * used; neither the requested locale nor any of its fall back locales
431 * could be found.
432 * The caller owns the returned object and is responsible for deleting it.
433 * @stable ICU 2.0
434 */
435 static BreakIterator* U_EXPORT2
436 createSentenceInstance(const Locale& where, UErrorCode& status);
437
438 #ifndef U_HIDE_DEPRECATED_API
439 /**
440 * Create BreakIterator for title-casing breaks using the specified locale
441 * Returns an instance of a BreakIterator implementing title breaks.
442 * The iterator returned locates title boundaries as described for
443 * Unicode 3.2 only. For Unicode 4.0 and above title boundary iteration,
444 * please use a word boundary iterator. See {@link #createWordInstance }.
445 *
446 * @param where the locale.
447 * @param status The error code.
448 * @return A BreakIterator for title-breaks. The UErrorCode& status
449 * parameter is used to return status information to the user.
450 * To check whether the construction succeeded or not, you should check
451 * the value of U_SUCCESS(err). If you wish more detailed information, you
452 * can check for informational error results which still indicate success.
453 * U_USING_FALLBACK_WARNING indicates that a fall back locale was used. For
454 * example, 'de_CH' was requested, but nothing was found there, so 'de' was
455 * used. U_USING_DEFAULT_WARNING indicates that the default locale data was
456 * used; neither the requested locale nor any of its fall back locales
457 * could be found.
458 * The caller owns the returned object and is responsible for deleting it.
459 * @deprecated ICU 64 Use createWordInstance instead.
460 */
461 static BreakIterator* U_EXPORT2
462 createTitleInstance(const Locale& where, UErrorCode& status);
463 #endif /* U_HIDE_DEPRECATED_API */
464
465 /**
466 * Get the set of Locales for which TextBoundaries are installed.
467 * <p><b>Note:</b> this will not return locales added through the register
468 * call. To see the registered locales too, use the getAvailableLocales
469 * function that returns a StringEnumeration object </p>
470 * @param count the output parameter of number of elements in the locale list
471 * @return available locales
472 * @stable ICU 2.0
473 */
474 static const Locale* U_EXPORT2 getAvailableLocales(int32_t& count);
475
476 /**
477 * Get name of the object for the desired Locale, in the desired language.
478 * @param objectLocale must be from getAvailableLocales.
479 * @param displayLocale specifies the desired locale for output.
480 * @param name the fill-in parameter of the return value
481 * Uses best match.
482 * @return user-displayable name
483 * @stable ICU 2.0
484 */
485 static UnicodeString& U_EXPORT2 getDisplayName(const Locale& objectLocale,
486 const Locale& displayLocale,
487 UnicodeString& name);
488
489 /**
490 * Get name of the object for the desired Locale, in the language of the
491 * default locale.
492 * @param objectLocale must be from getMatchingLocales
493 * @param name the fill-in parameter of the return value
494 * @return user-displayable name
495 * @stable ICU 2.0
496 */
497 static UnicodeString& U_EXPORT2 getDisplayName(const Locale& objectLocale,
498 UnicodeString& name);
499
500 #ifndef U_FORCE_HIDE_DEPRECATED_API
501 /**
502 * Deprecated functionality. Use clone() instead.
503 *
504 * Thread safe client-buffer-based cloning operation
505 * Do NOT call delete on a safeclone, since 'new' is not used to create it.
506 * @param stackBuffer user allocated space for the new clone. If NULL new memory will be allocated.
507 * If buffer is not large enough, new memory will be allocated.
508 * @param BufferSize reference to size of allocated space.
509 * If BufferSize == 0, a sufficient size for use in cloning will
510 * be returned ('pre-flighting')
511 * If BufferSize is not enough for a stack-based safe clone,
512 * new memory will be allocated.
513 * @param status to indicate whether the operation went on smoothly or there were errors
514 * An informational status value, U_SAFECLONE_ALLOCATED_ERROR, is used if any allocations were
515 * necessary.
516 * @return pointer to the new clone
517 *
518 * @deprecated ICU 52. Use clone() instead.
519 */
520 virtual BreakIterator * createBufferClone(void *stackBuffer,
521 int32_t &BufferSize,
522 UErrorCode &status) = 0;
523 #endif // U_FORCE_HIDE_DEPRECATED_API
524
525 #ifndef U_HIDE_DEPRECATED_API
526
527 /**
528 * Determine whether the BreakIterator was created in user memory by
529 * createBufferClone(), and thus should not be deleted. Such objects
530 * must be closed by an explicit call to the destructor (not delete).
531 * @deprecated ICU 52. Always delete the BreakIterator.
532 */
533 inline UBool isBufferClone(void);
534
535 #endif /* U_HIDE_DEPRECATED_API */
536
537 #if !UCONFIG_NO_SERVICE
538 /**
539 * Register a new break iterator of the indicated kind, to use in the given locale.
540 * The break iterator will be adopted. Clones of the iterator will be returned
541 * if a request for a break iterator of the given kind matches or falls back to
542 * this locale.
543 * Because ICU may choose to cache BreakIterators internally, this must
544 * be called at application startup, prior to any calls to
545 * BreakIterator::createXXXInstance to avoid undefined behavior.
546 * @param toAdopt the BreakIterator instance to be adopted
547 * @param locale the Locale for which this instance is to be registered
548 * @param kind the type of iterator for which this instance is to be registered
549 * @param status the in/out status code, no special meanings are assigned
550 * @return a registry key that can be used to unregister this instance
551 * @stable ICU 2.4
552 */
553 static URegistryKey U_EXPORT2 registerInstance(BreakIterator* toAdopt,
554 const Locale& locale,
555 UBreakIteratorType kind,
556 UErrorCode& status);
557
558 /**
559 * Unregister a previously-registered BreakIterator using the key returned from the
560 * register call. Key becomes invalid after a successful call and should not be used again.
561 * The BreakIterator corresponding to the key will be deleted.
562 * Because ICU may choose to cache BreakIterators internally, this should
563 * be called during application shutdown, after all calls to
564 * BreakIterator::createXXXInstance to avoid undefined behavior.
565 * @param key the registry key returned by a previous call to registerInstance
566 * @param status the in/out status code, no special meanings are assigned
567 * @return TRUE if the iterator for the key was successfully unregistered
568 * @stable ICU 2.4
569 */
570 static UBool U_EXPORT2 unregister(URegistryKey key, UErrorCode& status);
571
572 /**
573 * Return a StringEnumeration over the locales available at the time of the call,
574 * including registered locales.
575 * @return a StringEnumeration over the locales available at the time of the call
576 * @stable ICU 2.4
577 */
578 static StringEnumeration* U_EXPORT2 getAvailableLocales(void);
579 #endif
580
581 /**
582 * Returns the locale for this break iterator. Two flavors are available: valid and
583 * actual locale.
584 * @stable ICU 2.8
585 */
586 Locale getLocale(ULocDataLocaleType type, UErrorCode& status) const;
587
588 #ifndef U_HIDE_INTERNAL_API
589 /** Get the locale for this break iterator object. You can choose between valid and actual locale.
590 * @param type type of the locale we're looking for (valid or actual)
591 * @param status error code for the operation
592 * @return the locale
593 * @internal
594 */
595 const char *getLocaleID(ULocDataLocaleType type, UErrorCode& status) const;
596 #endif /* U_HIDE_INTERNAL_API */
597
598 /**
599 * Set the subject text string upon which the break iterator is operating
600 * without changing any other aspect of the matching state.
601 * The new and previous text strings must have the same content.
602 *
603 * This function is intended for use in environments where ICU is operating on
604 * strings that may move around in memory. It provides a mechanism for notifying
605 * ICU that the string has been relocated, and providing a new UText to access the
606 * string in its new position.
607 *
608 * Note that the break iterator implementation never copies the underlying text
609 * of a string being processed, but always operates directly on the original text
610 * provided by the user. Refreshing simply drops the references to the old text
611 * and replaces them with references to the new.
612 *
613 * Caution: this function is normally used only by very specialized,
614 * system-level code. One example use case is with garbage collection that moves
615 * the text in memory.
616 *
617 * @param input The new (moved) text string.
618 * @param status Receives errors detected by this function.
619 * @return *this
620 *
621 * @stable ICU 49
622 */
623 virtual BreakIterator &refreshInputText(UText *input, UErrorCode &status) = 0;
624
625 private:
626 static BreakIterator* buildInstance(const Locale& loc, const char *type, UErrorCode& status);
627 static BreakIterator* createInstance(const Locale& loc, int32_t kind, UErrorCode& status);
628 static BreakIterator* makeInstance(const Locale& loc, int32_t kind, UErrorCode& status);
629
630 friend class ICUBreakIteratorFactory;
631 friend class ICUBreakIteratorService;
632
633 protected:
634 // Do not enclose protected default/copy constructors with #ifndef U_HIDE_INTERNAL_API
635 // or else the compiler will create a public ones.
636 /** @internal */
637 BreakIterator();
638 /** @internal */
639 BreakIterator (const BreakIterator &other);
640 #ifndef U_HIDE_INTERNAL_API
641 /** @internal */
642 BreakIterator (const Locale& valid, const Locale &actual);
643 /** @internal. Assignment Operator, used by RuleBasedBreakIterator. */
644 BreakIterator &operator = (const BreakIterator &other);
645 #endif /* U_HIDE_INTERNAL_API */
646
647 private:
648
649 /** @internal (private) */
650 char actualLocale[ULOC_FULLNAME_CAPACITY];
651 char validLocale[ULOC_FULLNAME_CAPACITY];
652 };
653
654 #ifndef U_HIDE_DEPRECATED_API
655
656 inline UBool BreakIterator::isBufferClone()
657 {
658 return FALSE;
659 }
660
661 #endif /* U_HIDE_DEPRECATED_API */
662
663 U_NAMESPACE_END
664
665 #endif /* #if !UCONFIG_NO_BREAK_ITERATION */
666
667 #endif /* U_SHOW_CPLUSPLUS_API */
668
669 #endif // BRKITER_H
670 //eof