1 /*
2 ********************************************************************************
3 *   Copyright (C) 1997-2014, International Business Machines
4 *   Corporation and others.  All Rights Reserved.
5 ********************************************************************************
6 *
7 * File brkiter.h
8 *
9 * Modification History:
10 *
11 *   Date        Name        Description
12 *   02/18/97    aliu        Added typedef for TextCount.  Made DONE const.
13 *   05/07/97    aliu        Fixed DLL declaration.
14 *   07/09/97    jfitz       Renamed BreakIterator and interface synced with JDK
15 *   08/11/98    helena      Sync-up JDK1.2.
16 *   01/13/2000  helena      Added UErrorCode parameter to createXXXInstance methods.
17 ********************************************************************************
18 */
19 
20 #ifndef BRKITER_H
21 #define BRKITER_H
22 
23 #include "unicode/utypes.h"
24 
25 /**
26  * \file
27  * \brief C++ API: Break Iterator.
28  */
29 
30 #if UCONFIG_NO_BREAK_ITERATION
31 
32 U_NAMESPACE_BEGIN
33 
34 /*
35  * Allow the declaration of APIs with pointers to BreakIterator
36  * even when break iteration is removed from the build.
37  */
38 class BreakIterator;
39 
40 U_NAMESPACE_END
41 
42 #else
43 
44 #include "unicode/uobject.h"
45 #include "unicode/unistr.h"
46 #include "unicode/chariter.h"
47 #include "unicode/locid.h"
48 #include "unicode/ubrk.h"
49 #include "unicode/strenum.h"
50 #include "unicode/utext.h"
51 #include "unicode/umisc.h"
52 
53 U_NAMESPACE_BEGIN
54 
55 /**
56  * The BreakIterator class implements methods for finding the location
57  * of boundaries in text. BreakIterator is an abstract base class.
58  * Instances of BreakIterator maintain a current position and scan over
59  * text returning the index of characters where boundaries occur.
60  * <p>
61  * Line boundary analysis determines where a text string can be broken
62  * when line-wrapping. The mechanism correctly handles punctuation and
63  * hyphenated words.
64  * <p>
65  * Sentence boundary analysis allows selection with correct
66  * interpretation of periods within numbers and abbreviations, and
67  * trailing punctuation marks such as quotation marks and parentheses.
68  * <p>
69  * Word boundary analysis is used by search and replace functions, as
70  * well as within text editing applications that allow the user to
71  * select words with a double click. Word selection provides correct
72  * interpretation of punctuation marks within and following
73  * words. Characters that are not part of a word, such as symbols or
74  * punctuation marks, have word-breaks on both sides.
75  * <p>
76  * Character boundary analysis allows users to interact with
77  * characters as they expect to, for example, when moving the cursor
78  * through a text string. Character boundary analysis provides correct
79  * navigation of through character strings, regardless of how the
80  * character is stored.  For example, an accented character might be
81  * stored as a base character and a diacritical mark. What users
82  * consider to be a character can differ between languages.
83  * <p>
84  * The text boundary positions are found according to the rules
85  * described in Unicode Standard Annex #29, Text Boundaries, and
86  * Unicode Standard Annex #14, Line Breaking Properties.  These
87  * are available at http://www.unicode.org/reports/tr14/ and
88  * http://www.unicode.org/reports/tr29/.
89  * <p>
90  * In addition to the C++ API defined in this header file, a
91  * plain C API with equivalent functionality is defined in the
92  * file ubrk.h
93  * <p>
94  * Code snippets illustrating the use of the Break Iterator APIs
95  * are available in the ICU User Guide,
96  * http://icu-project.org/userguide/boundaryAnalysis.html
97  * and in the sample program icu/source/samples/break/break.cpp
98  *
99  */
100 class U_COMMON_API BreakIterator : public UObject {
101 public:
102     /**
103      *  destructor
104      *  @stable ICU 2.0
105      */
106     virtual ~BreakIterator();
107 
108     /**
109      * Return true if another object is semantically equal to this
110      * one. The other object should be an instance of the same subclass of
111      * BreakIterator. Objects of different subclasses are considered
112      * unequal.
113      * <P>
114      * Return true if this BreakIterator is at the same position in the
115      * same text, and is the same class and type (word, line, etc.) of
116      * BreakIterator, as the argument.  Text is considered the same if
117      * it contains the same characters, it need not be the same
118      * object, and styles are not considered.
119      * @stable ICU 2.0
120      */
121     virtual UBool operator==(const BreakIterator&) const = 0;
122 
123     /**
124      * Returns the complement of the result of operator==
125      * @param rhs The BreakIterator to be compared for inequality
126      * @return the complement of the result of operator==
127      * @stable ICU 2.0
128      */
129     UBool operator!=(const BreakIterator& rhs) const { return !operator==(rhs); }
130 
131     /**
132      * Return a polymorphic copy of this object.  This is an abstract
133      * method which subclasses implement.
134      * @stable ICU 2.0
135      */
136     virtual BreakIterator* clone(void) const = 0;
137 
138     /**
139      * Return a polymorphic class ID for this object. Different subclasses
140      * will return distinct unequal values.
141      * @stable ICU 2.0
142      */
143     virtual UClassID getDynamicClassID(void) const = 0;
144 
145     /**
146      * Return a CharacterIterator over the text being analyzed.
147      * @stable ICU 2.0
148      */
149     virtual CharacterIterator& getText(void) const = 0;
150 
151 
152     /**
153       *  Get a UText for the text being analyzed.
154       *  The returned UText is a shallow clone of the UText used internally
155       *  by the break iterator implementation.  It can safely be used to
156       *  access the text without impacting any break iterator operations,
157       *  but the underlying text itself must not be altered.
158       *
159       * @param fillIn A UText to be filled in.  If NULL, a new UText will be
160       *           allocated to hold the result.
161       * @param status receives any error codes.
162       * @return   The current UText for this break iterator.  If an input
163       *           UText was provided, it will always be returned.
164       * @stable ICU 3.4
165       */
166      virtual UText *getUText(UText *fillIn, UErrorCode &status) const = 0;
167 
168     /**
169      * Change the text over which this operates. The text boundary is
170      * reset to the start.
171      * @param text The UnicodeString used to change the text.
172      * @stable ICU 2.0
173      */
174     virtual void  setText(const UnicodeString &text) = 0;
175 
176     /**
177      * Reset the break iterator to operate over the text represented by
178      * the UText.  The iterator position is reset to the start.
179      *
180      * This function makes a shallow clone of the supplied UText.  This means
181      * that the caller is free to immediately close or otherwise reuse the
182      * Utext that was passed as a parameter, but that the underlying text itself
183      * must not be altered while being referenced by the break iterator.
184      *
185      * All index positions returned by break iterator functions are
186      * native indices from the UText. For example, when breaking UTF-8
187      * encoded text, the break positions returned by next(), previous(), etc.
188      * will be UTF-8 string indices, not UTF-16 positions.
189      *
190      * @param text The UText used to change the text.
191      * @param status receives any error codes.
192      * @stable ICU 3.4
193      */
194     virtual void  setText(UText *text, UErrorCode &status) = 0;
195 
196     /**
197      * Change the text over which this operates. The text boundary is
198      * reset to the start.
199      * Note that setText(UText *) provides similar functionality to this function,
200      * and is more efficient.
201      * @param it The CharacterIterator used to change the text.
202      * @stable ICU 2.0
203      */
204     virtual void  adoptText(CharacterIterator* it) = 0;
205 
206     enum {
207         /**
208          * DONE is returned by previous() and next() after all valid
209          * boundaries have been returned.
210          * @stable ICU 2.0
211          */
212         DONE = (int32_t)-1
213     };
214 
215     /**
216      * Sets the current iteration position to the beginning of the text, position zero.
217      * @return The offset of the beginning of the text, zero.
218      * @stable ICU 2.0
219      */
220     virtual int32_t first(void) = 0;
221 
222     /**
223      * Set the iterator position to the index immediately BEYOND the last character in the text being scanned.
224      * @return The index immediately BEYOND the last character in the text being scanned.
225      * @stable ICU 2.0
226      */
227     virtual int32_t last(void) = 0;
228 
229     /**
230      * Set the iterator position to the boundary preceding the current boundary.
231      * @return The character index of the previous text boundary or DONE if all
232      * boundaries have been returned.
233      * @stable ICU 2.0
234      */
235     virtual int32_t previous(void) = 0;
236 
237     /**
238      * Advance the iterator to the boundary following the current boundary.
239      * @return The character index of the next text boundary or DONE if all
240      * boundaries have been returned.
241      * @stable ICU 2.0
242      */
243     virtual int32_t next(void) = 0;
244 
245     /**
246      * Return character index of the current interator position within the text.
247      * @return The boundary most recently returned.
248      * @stable ICU 2.0
249      */
250     virtual int32_t current(void) const = 0;
251 
252     /**
253      * Advance the iterator to the first boundary following the specified offset.
254      * The value returned is always greater than the offset or
255      * the value BreakIterator.DONE
256      * @param offset the offset to begin scanning.
257      * @return The first boundary after the specified offset.
258      * @stable ICU 2.0
259      */
260     virtual int32_t following(int32_t offset) = 0;
261 
262     /**
263      * Set the iterator position to the first boundary preceding the specified offset.
264      * The value returned is always smaller than the offset or
265      * the value BreakIterator.DONE
266      * @param offset the offset to begin scanning.
267      * @return The first boundary before the specified offset.
268      * @stable ICU 2.0
269      */
270     virtual int32_t preceding(int32_t offset) = 0;
271 
272     /**
273      * Return true if the specfied position is a boundary position.
274      * As a side effect, the current position of the iterator is set
275      * to the first boundary position at or following the specified offset.
276      * @param offset the offset to check.
277      * @return True if "offset" is a boundary position.
278      * @stable ICU 2.0
279      */
280     virtual UBool isBoundary(int32_t offset) = 0;
281 
282     /**
283      * Set the iterator position to the nth boundary from the current boundary
284      * @param n the number of boundaries to move by.  A value of 0
285      * does nothing.  Negative values move to previous boundaries
286      * and positive values move to later boundaries.
287      * @return The new iterator position, or
288      * DONE if there are fewer than |n| boundaries in the specfied direction.
289      * @stable ICU 2.0
290      */
291     virtual int32_t next(int32_t n) = 0;
292 
293    /**
294      * For RuleBasedBreakIterators, return the status tag from the
295      * break rule that determined the most recently
296      * returned break position.
297      * <p>
298      * For break iterator types that do not support a rule status,
299      * a default value of 0 is returned.
300      * <p>
301      * @return the status from the break rule that determined the most recently
302      *         returned break position.
303      * @see RuleBaseBreakIterator::getRuleStatus()
304      * @see UWordBreak
305      * @stable ICU 52
306      */
307     virtual int32_t getRuleStatus() const;
308 
309    /**
310     * For RuleBasedBreakIterators, get the status (tag) values from the break rule(s)
311     * that determined the most recently returned break position.
312     * <p>
313     * For break iterator types that do not support rule status,
314     * no values are returned.
315     * <p>
316     * The returned status value(s) are stored into an array provided by the caller.
317     * The values are stored in sorted (ascending) order.
318     * If the capacity of the output array is insufficient to hold the data,
319     *  the output will be truncated to the available length, and a
320     *  U_BUFFER_OVERFLOW_ERROR will be signaled.
321     * <p>
322     * @see RuleBaseBreakIterator::getRuleStatusVec
323     *
324     * @param fillInVec an array to be filled in with the status values.
325     * @param capacity  the length of the supplied vector.  A length of zero causes
326     *                  the function to return the number of status values, in the
327     *                  normal way, without attemtping to store any values.
328     * @param status    receives error codes.
329     * @return          The number of rule status values from rules that determined
330     *                  the most recent boundary returned by the break iterator.
331     *                  In the event of a U_BUFFER_OVERFLOW_ERROR, the return value
332     *                  is the total number of status values that were available,
333     *                  not the reduced number that were actually returned.
334     * @see getRuleStatus
335     * @stable ICU 52
336     */
337     virtual int32_t getRuleStatusVec(int32_t *fillInVec, int32_t capacity, UErrorCode &status);
338 
339     /**
340      * Create BreakIterator for word-breaks using the given locale.
341      * Returns an instance of a BreakIterator implementing word breaks.
342      * WordBreak is useful for word selection (ex. double click)
343      * @param where the locale.
344      * @param status the error code
345      * @return A BreakIterator for word-breaks.  The UErrorCode& status
346      * parameter is used to return status information to the user.
347      * To check whether the construction succeeded or not, you should check
348      * the value of U_SUCCESS(err).  If you wish more detailed information, you
349      * can check for informational error results which still indicate success.
350      * U_USING_FALLBACK_WARNING indicates that a fall back locale was used.  For
351      * example, 'de_CH' was requested, but nothing was found there, so 'de' was
352      * used.  U_USING_DEFAULT_WARNING indicates that the default locale data was
353      * used; neither the requested locale nor any of its fall back locales
354      * could be found.
355      * The caller owns the returned object and is responsible for deleting it.
356      * @stable ICU 2.0
357      */
358     static BreakIterator* U_EXPORT2
359     createWordInstance(const Locale& where, UErrorCode& status);
360 
361     /**
362      * Create BreakIterator for line-breaks using specified locale.
363      * Returns an instance of a BreakIterator implementing line breaks. Line
364      * breaks are logically possible line breaks, actual line breaks are
365      * usually determined based on display width.
366      * LineBreak is useful for word wrapping text.
367      * @param where the locale.
368      * @param status The error code.
369      * @return A BreakIterator for line-breaks.  The UErrorCode& status
370      * parameter is used to return status information to the user.
371      * To check whether the construction succeeded or not, you should check
372      * the value of U_SUCCESS(err).  If you wish more detailed information, you
373      * can check for informational error results which still indicate success.
374      * U_USING_FALLBACK_WARNING indicates that a fall back locale was used.  For
375      * example, 'de_CH' was requested, but nothing was found there, so 'de' was
376      * used.  U_USING_DEFAULT_WARNING indicates that the default locale data was
377      * used; neither the requested locale nor any of its fall back locales
378      * could be found.
379      * The caller owns the returned object and is responsible for deleting it.
380      * @stable ICU 2.0
381      */
382     static BreakIterator* U_EXPORT2
383     createLineInstance(const Locale& where, UErrorCode& status);
384 
385     /**
386      * Create BreakIterator for character-breaks using specified locale
387      * Returns an instance of a BreakIterator implementing character breaks.
388      * Character breaks are boundaries of combining character sequences.
389      * @param where the locale.
390      * @param status The error code.
391      * @return A BreakIterator for character-breaks.  The UErrorCode& status
392      * parameter is used to return status information to the user.
393      * To check whether the construction succeeded or not, you should check
394      * the value of U_SUCCESS(err).  If you wish more detailed information, you
395      * can check for informational error results which still indicate success.
396      * U_USING_FALLBACK_WARNING indicates that a fall back locale was used.  For
397      * example, 'de_CH' was requested, but nothing was found there, so 'de' was
398      * used.  U_USING_DEFAULT_WARNING indicates that the default locale data was
399      * used; neither the requested locale nor any of its fall back locales
400      * could be found.
401      * The caller owns the returned object and is responsible for deleting it.
402      * @stable ICU 2.0
403      */
404     static BreakIterator* U_EXPORT2
405     createCharacterInstance(const Locale& where, UErrorCode& status);
406 
407     /**
408      * Create BreakIterator for sentence-breaks using specified locale
409      * Returns an instance of a BreakIterator implementing sentence breaks.
410      * @param where the locale.
411      * @param status The error code.
412      * @return A BreakIterator for sentence-breaks.  The UErrorCode& status
413      * parameter is used to return status information to the user.
414      * To check whether the construction succeeded or not, you should check
415      * the value of U_SUCCESS(err).  If you wish more detailed information, you
416      * can check for informational error results which still indicate success.
417      * U_USING_FALLBACK_WARNING indicates that a fall back locale was used.  For
418      * example, 'de_CH' was requested, but nothing was found there, so 'de' was
419      * used.  U_USING_DEFAULT_WARNING indicates that the default locale data was
420      * used; neither the requested locale nor any of its fall back locales
421      * could be found.
422      * The caller owns the returned object and is responsible for deleting it.
423      * @stable ICU 2.0
424      */
425     static BreakIterator* U_EXPORT2
426     createSentenceInstance(const Locale& where, UErrorCode& status);
427 
428     /**
429      * Create BreakIterator for title-casing breaks using the specified locale
430      * Returns an instance of a BreakIterator implementing title breaks.
431      * The iterator returned locates title boundaries as described for
432      * Unicode 3.2 only. For Unicode 4.0 and above title boundary iteration,
433      * please use Word Boundary iterator.{@link #createWordInstance }
434      *
435      * @param where the locale.
436      * @param status The error code.
437      * @return A BreakIterator for title-breaks.  The UErrorCode& status
438      * parameter is used to return status information to the user.
439      * To check whether the construction succeeded or not, you should check
440      * the value of U_SUCCESS(err).  If you wish more detailed information, you
441      * can check for informational error results which still indicate success.
442      * U_USING_FALLBACK_WARNING indicates that a fall back locale was used.  For
443      * example, 'de_CH' was requested, but nothing was found there, so 'de' was
444      * used.  U_USING_DEFAULT_WARNING indicates that the default locale data was
445      * used; neither the requested locale nor any of its fall back locales
446      * could be found.
447      * The caller owns the returned object and is responsible for deleting it.
448      * @stable ICU 2.1
449      */
450     static BreakIterator* U_EXPORT2
451     createTitleInstance(const Locale& where, UErrorCode& status);
452 
453     /**
454      * Get the set of Locales for which TextBoundaries are installed.
455      * <p><b>Note:</b> this will not return locales added through the register
456      * call. To see the registered locales too, use the getAvailableLocales
457      * function that returns a StringEnumeration object </p>
458      * @param count the output parameter of number of elements in the locale list
459      * @return available locales
460      * @stable ICU 2.0
461      */
462     static const Locale* U_EXPORT2 getAvailableLocales(int32_t& count);
463 
464     /**
465      * Get name of the object for the desired Locale, in the desired langauge.
466      * @param objectLocale must be from getAvailableLocales.
467      * @param displayLocale specifies the desired locale for output.
468      * @param name the fill-in parameter of the return value
469      * Uses best match.
470      * @return user-displayable name
471      * @stable ICU 2.0
472      */
473     static UnicodeString& U_EXPORT2 getDisplayName(const Locale& objectLocale,
474                                          const Locale& displayLocale,
475                                          UnicodeString& name);
476 
477     /**
478      * Get name of the object for the desired Locale, in the langauge of the
479      * default locale.
480      * @param objectLocale must be from getMatchingLocales
481      * @param name the fill-in parameter of the return value
482      * @return user-displayable name
483      * @stable ICU 2.0
484      */
485     static UnicodeString& U_EXPORT2 getDisplayName(const Locale& objectLocale,
486                                          UnicodeString& name);
487 
488     /**
489      * Deprecated functionality. Use clone() instead.
490      *
491      * Thread safe client-buffer-based cloning operation
492      *    Do NOT call delete on a safeclone, since 'new' is not used to create it.
493      * @param stackBuffer user allocated space for the new clone. If NULL new memory will be allocated.
494      * If buffer is not large enough, new memory will be allocated.
495      * @param BufferSize reference to size of allocated space.
496      * If BufferSize == 0, a sufficient size for use in cloning will
497      * be returned ('pre-flighting')
498      * If BufferSize is not enough for a stack-based safe clone,
499      * new memory will be allocated.
500      * @param status to indicate whether the operation went on smoothly or there were errors
501      *  An informational status value, U_SAFECLONE_ALLOCATED_ERROR, is used if any allocations were
502      *  necessary.
503      * @return pointer to the new clone
504      *
505      * @deprecated ICU 52. Use clone() instead.
506      */
507     virtual BreakIterator *  createBufferClone(void *stackBuffer,
508                                                int32_t &BufferSize,
509                                                UErrorCode &status) = 0;
510 
511 #ifndef U_HIDE_DEPRECATED_API
512 
513     /**
514      *   Determine whether the BreakIterator was created in user memory by
515      *   createBufferClone(), and thus should not be deleted.  Such objects
516      *   must be closed by an explicit call to the destructor (not delete).
517      * @deprecated ICU 52. Always delete the BreakIterator.
518      */
519     inline UBool isBufferClone(void);
520 
521 #endif /* U_HIDE_DEPRECATED_API */
522 
523 #if !UCONFIG_NO_SERVICE
524     /**
525      * Register a new break iterator of the indicated kind, to use in the given locale.
526      * The break iterator will be adopted.  Clones of the iterator will be returned
527      * if a request for a break iterator of the given kind matches or falls back to
528      * this locale.
529      * Because ICU may choose to cache BreakIterators internally, this must
530      * be called at application startup, prior to any calls to
531      * BreakIterator::createXXXInstance to avoid undefined behavior.
532      * @param toAdopt the BreakIterator instance to be adopted
533      * @param locale the Locale for which this instance is to be registered
534      * @param kind the type of iterator for which this instance is to be registered
535      * @param status the in/out status code, no special meanings are assigned
536      * @return a registry key that can be used to unregister this instance
537      * @stable ICU 2.4
538      */
539     static URegistryKey U_EXPORT2 registerInstance(BreakIterator* toAdopt,
540                                         const Locale& locale,
541                                         UBreakIteratorType kind,
542                                         UErrorCode& status);
543 
544     /**
545      * Unregister a previously-registered BreakIterator using the key returned from the
546      * register call.  Key becomes invalid after a successful call and should not be used again.
547      * The BreakIterator corresponding to the key will be deleted.
548      * Because ICU may choose to cache BreakIterators internally, this should
549      * be called during application shutdown, after all calls to
550      * BreakIterator::createXXXInstance to avoid undefined behavior.
551      * @param key the registry key returned by a previous call to registerInstance
552      * @param status the in/out status code, no special meanings are assigned
553      * @return TRUE if the iterator for the key was successfully unregistered
554      * @stable ICU 2.4
555      */
556     static UBool U_EXPORT2 unregister(URegistryKey key, UErrorCode& status);
557 
558     /**
559      * Return a StringEnumeration over the locales available at the time of the call,
560      * including registered locales.
561      * @return a StringEnumeration over the locales available at the time of the call
562      * @stable ICU 2.4
563      */
564     static StringEnumeration* U_EXPORT2 getAvailableLocales(void);
565 #endif
566 
567     /**
568      * Returns the locale for this break iterator. Two flavors are available: valid and
569      * actual locale.
570      * @stable ICU 2.8
571      */
572     Locale getLocale(ULocDataLocaleType type, UErrorCode& status) const;
573 
574 #ifndef U_HIDE_INTERNAL_API
575     /** Get the locale for this break iterator object. You can choose between valid and actual locale.
576      *  @param type type of the locale we're looking for (valid or actual)
577      *  @param status error code for the operation
578      *  @return the locale
579      *  @internal
580      */
581     const char *getLocaleID(ULocDataLocaleType type, UErrorCode& status) const;
582 #endif  /* U_HIDE_INTERNAL_API */
583 
584     /**
585      *  Set the subject text string upon which the break iterator is operating
586      *  without changing any other aspect of the matching state.
587      *  The new and previous text strings must have the same content.
588      *
589      *  This function is intended for use in environments where ICU is operating on
590      *  strings that may move around in memory.  It provides a mechanism for notifying
591      *  ICU that the string has been relocated, and providing a new UText to access the
592      *  string in its new position.
593      *
594      *  Note that the break iterator implementation never copies the underlying text
595      *  of a string being processed, but always operates directly on the original text
596      *  provided by the user. Refreshing simply drops the references to the old text
597      *  and replaces them with references to the new.
598      *
599      *  Caution:  this function is normally used only by very specialized,
600      *  system-level code.  One example use case is with garbage collection that moves
601      *  the text in memory.
602      *
603      * @param input      The new (moved) text string.
604      * @param status     Receives errors detected by this function.
605      * @return           *this
606      *
607      * @stable ICU 49
608      */
609     virtual BreakIterator &refreshInputText(UText *input, UErrorCode &status) = 0;
610 
611  private:
612     static BreakIterator* buildInstance(const Locale& loc, const char *type, int32_t kind, UErrorCode& status);
613     static BreakIterator* createInstance(const Locale& loc, int32_t kind, UErrorCode& status);
614     static BreakIterator* makeInstance(const Locale& loc, int32_t kind, UErrorCode& status);
615 
616     friend class ICUBreakIteratorFactory;
617     friend class ICUBreakIteratorService;
618 
619 protected:
620     // Do not enclose protected default/copy constructors with #ifndef U_HIDE_INTERNAL_API
621     // or else the compiler will create a public ones.
622     /** @internal */
623     BreakIterator();
624     /** @internal */
625     BreakIterator (const BreakIterator &other) : UObject(other) {}
626     /** @internal */
627     BreakIterator (const Locale& valid, const Locale& actual);
628 private:
629 
630     /** @internal */
631     char actualLocale[ULOC_FULLNAME_CAPACITY];
632     char validLocale[ULOC_FULLNAME_CAPACITY];
633 
634     /**
635      * The assignment operator has no real implementation.
636      * It's provided to make the compiler happy. Do not call.
637      */
638     BreakIterator& operator=(const BreakIterator&);
639 };
640 
641 #ifndef U_HIDE_DEPRECATED_API
642 
643 inline UBool BreakIterator::isBufferClone()
644 {
645     return FALSE;
646 }
647 
648 #endif /* U_HIDE_DEPRECATED_API */
649 
650 U_NAMESPACE_END
651 
652 #endif /* #if !UCONFIG_NO_BREAK_ITERATION */
653 
654 #endif // _BRKITER
655 //eof
656