FM / unicode

/opt/alt/libicu/usr/include/unicode

Name	Size	Mode	Actions
alphaindex.h	27056	0644	edit dl rm
appendable.h	8632	0644	edit dl rm
basictz.h	9055	0644	edit dl rm
brkiter.h	28195	0644	edit dl rm
bytestream.h	9767	0644	edit dl rm
bytestrie.h	19718	0644	edit dl rm
bytestriebuilder.h	7186	0644	edit dl rm
calendar.h	107581	0644	edit dl rm
caniter.h	7550	0644	edit dl rm
casemap.h	25871	0644	edit dl rm
char16ptr.h	7331	0644	edit dl rm
chariter.h	24573	0644	edit dl rm
choicfmt.h	24418	0644	edit dl rm
coleitr.h	14033	0644	edit dl rm
coll.h	56928	0644	edit dl rm
compactdecimalformat.h	6971	0644	edit dl rm
curramt.h	3782	0644	edit dl rm
currpinf.h	7412	0644	edit dl rm
currunit.h	3606	0644	edit dl rm
datefmt.h	41334	0644	edit dl rm
dbbi.h	1133	0644	edit dl rm
dcfmtsym.h	20584	0644	edit dl rm
decimfmt.h	88478	0644	edit dl rm
docmain.h	6878	0644	edit dl rm
dtfmtsym.h	38548	0644	edit dl rm
dtintrv.h	3848	0644	edit dl rm
dtitvfmt.h	43898	0644	edit dl rm
dtitvinf.h	18903	0644	edit dl rm
dtptngen.h	25626	0644	edit dl rm
dtrule.h	8831	0644	edit dl rm
edits.h	21169	0644	edit dl rm
enumset.h	2130	0644	edit dl rm
errorcode.h	4894	0644	edit dl rm
fieldpos.h	8838	0644	edit dl rm
filteredbrk.h	5364	0644	edit dl rm
fmtable.h	24946	0644	edit dl rm
format.h	12741	0644	edit dl rm
fpositer.h	3047	0644	edit dl rm
gender.h	3347	0644	edit dl rm
gregocal.h	32331	0644	edit dl rm
icudataver.h	1051	0644	edit dl rm
icuplug.h	12166	0644	edit dl rm
idna.h	12938	0644	edit dl rm
listformatter.h	6331	0644	edit dl rm
localpointer.h	17284	0644	edit dl rm
locdspnm.h	7224	0644	edit dl rm
locid.h	46001	0644	edit dl rm
measfmt.h	12298	0644	edit dl rm
measunit.h	39427	0644	edit dl rm
measure.h	4361	0644	edit dl rm
messagepattern.h	34460	0644	edit dl rm
msgfmt.h	44398	0644	edit dl rm
normalizer2.h	34789	0644	edit dl rm
normlzr.h	31476	0644	edit dl rm
nounit.h	2693	0644	edit dl rm
numberformatter.h	89164	0644	edit dl rm
numberrangeformatter.h	29430	0644	edit dl rm
numfmt.h	50322	0644	edit dl rm
numsys.h	6895	0644	edit dl rm
parseerr.h	3155	0644	edit dl rm
parsepos.h	5581	0644	edit dl rm
platform.h	27754	0644	edit dl rm
plurfmt.h	25786	0644	edit dl rm
plurrule.h	17834	0644	edit dl rm
ptypes.h	3577	0644	edit dl rm
putil.h	6487	0644	edit dl rm
rbbi.h	27047	0644	edit dl rm
rbnf.h	50984	0644	edit dl rm
rbtz.h	15838	0644	edit dl rm
regex.h	86943	0644	edit dl rm
region.h	9342	0644	edit dl rm
reldatefmt.h	14812	0644	edit dl rm
rep.h	9726	0644	edit dl rm
resbund.h	18440	0644	edit dl rm
schriter.h	6410	0644	edit dl rm
scientificnumberformatter.h	6474	0644	edit dl rm
search.h	22742	0644	edit dl rm
selfmt.h	14579	0644	edit dl rm
simpleformatter.h	11701	0644	edit dl rm
simpletz.h	46389	0644	edit dl rm
smpdtfmt.h	72442	0644	edit dl rm
sortkey.h	11383	0644	edit dl rm
std_string.h	1015	0644	edit dl rm
strenum.h	10279	0644	edit dl rm
stringoptions.h	5926	0644	edit dl rm
stringpiece.h	6610	0644	edit dl rm
stringtriebuilder.h	15636	0644	edit dl rm
stsearch.h	21801	0644	edit dl rm
symtable.h	4312	0644	edit dl rm
tblcoll.h	37272	0644	edit dl rm
timezone.h	41862	0644	edit dl rm
tmunit.h	3371	0644	edit dl rm
tmutamt.h	4918	0644	edit dl rm
tmutfmt.h	7977	0644	edit dl rm
translit.h	67339	0644	edit dl rm
tzfmt.h	43846	0644	edit dl rm
tznames.h	17190	0644	edit dl rm
tzrule.h	36170	0644	edit dl rm
tztrans.h	6214	0644	edit dl rm
ubidi.h	91711	0644	edit dl rm
ubiditransform.h	12950	0644	edit dl rm
ubrk.h	24547	0644	edit dl rm
ucal.h	56526	0644	edit dl rm
ucasemap.h	15546	0644	edit dl rm
ucat.h	5484	0644	edit dl rm
uchar.h	143314	0644	edit dl rm
ucharstrie.h	21569	0644	edit dl rm
ucharstriebuilder.h	7316	0644	edit dl rm
uchriter.h	13457	0644	edit dl rm
uclean.h	11474	0644	edit dl rm
ucnv.h	85085	0644	edit dl rm
ucnvsel.h	6283	0644	edit dl rm
ucnv_cb.h	6748	0644	edit dl rm
ucnv_err.h	21492	0644	edit dl rm
ucol.h	62864	0644	edit dl rm
ucoleitr.h	9684	0644	edit dl rm
uconfig.h	11949	0644	edit dl rm
ucpmap.h	5709	0644	edit dl rm
ucptrie.h	22824	0644	edit dl rm
ucsdet.h	15018	0644	edit dl rm
ucurr.h	15947	0644	edit dl rm
udat.h	61572	0644	edit dl rm
udata.h	15905	0644	edit dl rm
udateintervalformat.h	6950	0644	edit dl rm
udatpg.h	26664	0644	edit dl rm
udisplaycontext.h	6029	0644	edit dl rm
uenum.h	7970	0644	edit dl rm
ufieldpositer.h	4461	0644	edit dl rm
uformattable.h	11198	0644	edit dl rm
ugender.h	2052	0644	edit dl rm
uidna.h	34169	0644	edit dl rm
uiter.h	23319	0644	edit dl rm
uldnames.h	10702	0644	edit dl rm
ulistformatter.h	5148	0644	edit dl rm
uloc.h	51971	0644	edit dl rm
ulocdata.h	11533	0644	edit dl rm
umachine.h	13509	0644	edit dl rm
umisc.h	1365	0644	edit dl rm
umsg.h	24812	0644	edit dl rm
umutablecptrie.h	8477	0644	edit dl rm
unifilt.h	3716	0644	edit dl rm
unifunct.h	4079	0644	edit dl rm
unimatch.h	6184	0644	edit dl rm
unirepl.h	3403	0644	edit dl rm
uniset.h	65796	0644	edit dl rm
unistr.h	178587	0644	edit dl rm
unorm.h	20938	0644	edit dl rm
unorm2.h	25254	0644	edit dl rm
unum.h	54666	0644	edit dl rm
unumberformatter.h	24335	0644	edit dl rm
unumsys.h	7314	0644	edit dl rm
uobject.h	10958	0644	edit dl rm
upluralrules.h	6880	0644	edit dl rm
uregex.h	73784	0644	edit dl rm
uregion.h	10073	0644	edit dl rm
ureldatefmt.h	12518	0644	edit dl rm
urename.h	130791	0644	edit dl rm
urep.h	5507	0644	edit dl rm
ures.h	37404	0644	edit dl rm
uscript.h	27153	0644	edit dl rm
usearch.h	39038	0644	edit dl rm
uset.h	40958	0644	edit dl rm
usetiter.h	9719	0644	edit dl rm
ushape.h	18432	0644	edit dl rm
uspoof.h	67613	0644	edit dl rm
usprep.h	8331	0644	edit dl rm
ustdio.h	39469	0644	edit dl rm
ustream.h	1844	0644	edit dl rm
ustring.h	74211	0644	edit dl rm
ustringtrie.h	3224	0644	edit dl rm
utext.h	59503	0644	edit dl rm
utf.h	8046	0644	edit dl rm
utf8.h	30734	0644	edit dl rm
utf16.h	22866	0644	edit dl rm
utf32.h	763	0644	edit dl rm
utf_old.h	44827	0644	edit dl rm
utmscale.h	14113	0644	edit dl rm
utrace.h	14219	0644	edit dl rm
utrans.h	26157	0644	edit dl rm
utypes.h	31212	0644	edit dl rm
uvernum.h	6206	0644	edit dl rm
uversion.h	6865	0644	edit dl rm
vtzone.h	20651	0644	edit dl rm

Edit: /opt/alt/libicu/usr/include/unicode/brkiter.h (28195B)

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
********************************************************************************
*   Copyright (C) 1997-2016, International Business Machines
*   Corporation and others.  All Rights Reserved.
********************************************************************************
*
* File brkiter.h
*
* Modification History:
*
*   Date        Name        Description
*   02/18/97    aliu        Added typedef for TextCount.  Made DONE const.
*   05/07/97    aliu        Fixed DLL declaration.
*   07/09/97    jfitz       Renamed BreakIterator and interface synced with JDK
*   08/11/98    helena      Sync-up JDK1.2.
*   01/13/2000  helena      Added UErrorCode parameter to createXXXInstance methods.
********************************************************************************
*/

#ifndef BRKITER_H
#define BRKITER_H

#include "unicode/utypes.h"

/**
 * \file
 * \brief C++ API: Break Iterator.
 */

#if UCONFIG_NO_BREAK_ITERATION

U_NAMESPACE_BEGIN

/*
 * Allow the declaration of APIs with pointers to BreakIterator
 * even when break iteration is removed from the build.
 */
class BreakIterator;

U_NAMESPACE_END

#else

#include "unicode/uobject.h"
#include "unicode/unistr.h"
#include "unicode/chariter.h"
#include "unicode/locid.h"
#include "unicode/ubrk.h"
#include "unicode/strenum.h"
#include "unicode/utext.h"
#include "unicode/umisc.h"

U_NAMESPACE_BEGIN

/**
 * The BreakIterator class implements methods for finding the location
 * of boundaries in text. BreakIterator is an abstract base class.
 * Instances of BreakIterator maintain a current position and scan over
 * text returning the index of characters where boundaries occur.
 * 
 * Line boundary analysis determines where a text string can be broken
 * when line-wrapping. The mechanism correctly handles punctuation and
 * hyphenated words.
 * 
 * Sentence boundary analysis allows selection with correct
 * interpretation of periods within numbers and abbreviations, and
 * trailing punctuation marks such as quotation marks and parentheses.
 * 
 * Word boundary analysis is used by search and replace functions, as
 * well as within text editing applications that allow the user to
 * select words with a double click. Word selection provides correct
 * interpretation of punctuation marks within and following
 * words. Characters that are not part of a word, such as symbols or
 * punctuation marks, have word-breaks on both sides.
 * 
 * Character boundary analysis allows users to interact with
 * characters as they expect to, for example, when moving the cursor
 * through a text string. Character boundary analysis provides correct
 * navigation of through character strings, regardless of how the
 * character is stored. For example, an accented character might be
 * stored as a base character and a diacritical mark. What users
 * consider to be a character can differ between languages.
 * 
 * The text boundary positions are found according to the rules
 * described in Unicode Standard Annex #29, Text Boundaries, and
 * Unicode Standard Annex #14, Line Breaking Properties. These
 * are available at http://www.unicode.org/reports/tr14/ and
 * http://www.unicode.org/reports/tr29/.
 * 
 * In addition to the C++ API defined in this header file, a
 * plain C API with equivalent functionality is defined in the
 * file ubrk.h
 * 
 * Code snippets illustrating the use of the Break Iterator APIs
 * are available in the ICU User Guide,
 * http://icu-project.org/userguide/boundaryAnalysis.html
 * and in the sample program icu/source/samples/break/break.cpp
 *
 */
class U_COMMON_API BreakIterator : public UObject {
public:
 /**
 * destructor
 * @stable ICU 2.0
 */
 virtual ~BreakIterator();

/**
 * Return true if another object is semantically equal to this
 * one. The other object should be an instance of the same subclass of
 * BreakIterator. Objects of different subclasses are considered
 * unequal.
 * 
 * Return true if this BreakIterator is at the same position in the
 * same text, and is the same class and type (word, line, etc.) of
 * BreakIterator, as the argument. Text is considered the same if
 * it contains the same characters, it need not be the same
 * object, and styles are not considered.
 * @stable ICU 2.0
 */
 virtual UBool operator==(const BreakIterator&) const = 0;

/**
     * Returns the complement of the result of operator==
     * @param rhs The BreakIterator to be compared for inequality
     * @return the complement of the result of operator==
     * @stable ICU 2.0
     */
    UBool operator!=(const BreakIterator& rhs) const { return !operator==(rhs); }

/**
     * Return a polymorphic copy of this object.  This is an abstract
     * method which subclasses implement.
     * @stable ICU 2.0
     */
    virtual BreakIterator* clone(void) const = 0;

/**
     * Return a polymorphic class ID for this object. Different subclasses
     * will return distinct unequal values.
     * @stable ICU 2.0
     */
    virtual UClassID getDynamicClassID(void) const = 0;

/**
     * Return a CharacterIterator over the text being analyzed.
     * @stable ICU 2.0
     */
    virtual CharacterIterator& getText(void) const = 0;

/**
      *  Get a UText for the text being analyzed.
      *  The returned UText is a shallow clone of the UText used internally
      *  by the break iterator implementation.  It can safely be used to
      *  access the text without impacting any break iterator operations,
      *  but the underlying text itself must not be altered.
      *
      * @param fillIn A UText to be filled in.  If NULL, a new UText will be
      *           allocated to hold the result.
      * @param status receives any error codes.
      * @return   The current UText for this break iterator.  If an input
      *           UText was provided, it will always be returned.
      * @stable ICU 3.4
      */
     virtual UText *getUText(UText *fillIn, UErrorCode &status) const = 0;

/**
     * Change the text over which this operates. The text boundary is
     * reset to the start.
     *
     * The BreakIterator will retain a reference to the supplied string.
     * The caller must not modify or delete the text while the BreakIterator
     * retains the reference.
     *
     * @param text The UnicodeString used to change the text.
     * @stable ICU 2.0
     */
    virtual void  setText(const UnicodeString &text) = 0;

/**
     * Reset the break iterator to operate over the text represented by
     * the UText.  The iterator position is reset to the start.
     *
     * This function makes a shallow clone of the supplied UText.  This means
     * that the caller is free to immediately close or otherwise reuse the
     * Utext that was passed as a parameter, but that the underlying text itself
     * must not be altered while being referenced by the break iterator.
     *
     * All index positions returned by break iterator functions are
     * native indices from the UText. For example, when breaking UTF-8
     * encoded text, the break positions returned by next(), previous(), etc.
     * will be UTF-8 string indices, not UTF-16 positions.
     *
     * @param text The UText used to change the text.
     * @param status receives any error codes.
     * @stable ICU 3.4
     */
    virtual void  setText(UText *text, UErrorCode &status) = 0;

/**
     * Change the text over which this operates. The text boundary is
     * reset to the start.
     * Note that setText(UText *) provides similar functionality to this function,
     * and is more efficient.
     * @param it The CharacterIterator used to change the text.
     * @stable ICU 2.0
     */
    virtual void  adoptText(CharacterIterator* it) = 0;

enum {
        /**
         * DONE is returned by previous() and next() after all valid
         * boundaries have been returned.
         * @stable ICU 2.0
         */
        DONE = (int32_t)-1
    };

/**
     * Sets the current iteration position to the beginning of the text, position zero.
     * @return The offset of the beginning of the text, zero.
     * @stable ICU 2.0
     */
    virtual int32_t first(void) = 0;

/**
     * Set the iterator position to the index immediately BEYOND the last character in the text being scanned.
     * @return The index immediately BEYOND the last character in the text being scanned.
     * @stable ICU 2.0
     */
    virtual int32_t last(void) = 0;

/**
     * Set the iterator position to the boundary preceding the current boundary.
     * @return The character index of the previous text boundary or DONE if all
     * boundaries have been returned.
     * @stable ICU 2.0
     */
    virtual int32_t previous(void) = 0;

/**
     * Advance the iterator to the boundary following the current boundary.
     * @return The character index of the next text boundary or DONE if all
     * boundaries have been returned.
     * @stable ICU 2.0
     */
    virtual int32_t next(void) = 0;

/**
     * Return character index of the current iterator position within the text.
     * @return The boundary most recently returned.
     * @stable ICU 2.0
     */
    virtual int32_t current(void) const = 0;

/**
     * Advance the iterator to the first boundary following the specified offset.
     * The value returned is always greater than the offset or
     * the value BreakIterator.DONE
     * @param offset the offset to begin scanning.
     * @return The first boundary after the specified offset.
     * @stable ICU 2.0
     */
    virtual int32_t following(int32_t offset) = 0;

/**
     * Set the iterator position to the first boundary preceding the specified offset.
     * The value returned is always smaller than the offset or
     * the value BreakIterator.DONE
     * @param offset the offset to begin scanning.
     * @return The first boundary before the specified offset.
     * @stable ICU 2.0
     */
    virtual int32_t preceding(int32_t offset) = 0;

/**
     * Return true if the specified position is a boundary position.
     * As a side effect, the current position of the iterator is set
     * to the first boundary position at or following the specified offset.
     * @param offset the offset to check.
     * @return True if "offset" is a boundary position.
     * @stable ICU 2.0
     */
    virtual UBool isBoundary(int32_t offset) = 0;

/**
     * Set the iterator position to the nth boundary from the current boundary
     * @param n the number of boundaries to move by.  A value of 0
     * does nothing.  Negative values move to previous boundaries
     * and positive values move to later boundaries.
     * @return The new iterator position, or
     * DONE if there are fewer than |n| boundaries in the specified direction.
     * @stable ICU 2.0
     */
    virtual int32_t next(int32_t n) = 0;

/**
 * For RuleBasedBreakIterators, return the status tag from the break rule
 * that determined the boundary at the current iteration position.
 * 
 * For break iterator types that do not support a rule status,
 * a default value of 0 is returned.
 * 
 * @return the status from the break rule that determined the boundary at
 * the current iteration position.
 * @see RuleBaseBreakIterator::getRuleStatus()
 * @see UWordBreak
 * @stable ICU 52
 */
 virtual int32_t getRuleStatus() const;

/**
 * For RuleBasedBreakIterators, get the status (tag) values from the break rule(s)
 * that determined the boundary at the current iteration position.
 * 
 * For break iterator types that do not support rule status,
 * no values are returned.
 * 
 * The returned status value(s) are stored into an array provided by the caller.
 * The values are stored in sorted (ascending) order.
 * If the capacity of the output array is insufficient to hold the data,
 * the output will be truncated to the available length, and a
 * U_BUFFER_OVERFLOW_ERROR will be signaled.
 * 
 * @see RuleBaseBreakIterator::getRuleStatusVec
 *
 * @param fillInVec an array to be filled in with the status values.
 * @param capacity the length of the supplied vector. A length of zero causes
 * the function to return the number of status values, in the
 * normal way, without attempting to store any values.
 * @param status receives error codes.
 * @return The number of rule status values from rules that determined
 * the boundary at the current iteration position.
 * In the event of a U_BUFFER_OVERFLOW_ERROR, the return value
 * is the total number of status values that were available,
 * not the reduced number that were actually returned.
 * @see getRuleStatus
 * @stable ICU 52
 */
 virtual int32_t getRuleStatusVec(int32_t *fillInVec, int32_t capacity, UErrorCode &status);

/**
     * Create BreakIterator for word-breaks using the given locale.
     * Returns an instance of a BreakIterator implementing word breaks.
     * WordBreak is useful for word selection (ex. double click)
     * @param where the locale.
     * @param status the error code
     * @return A BreakIterator for word-breaks.  The UErrorCode& status
     * parameter is used to return status information to the user.
     * To check whether the construction succeeded or not, you should check
     * the value of U_SUCCESS(err).  If you wish more detailed information, you
     * can check for informational error results which still indicate success.
     * U_USING_FALLBACK_WARNING indicates that a fall back locale was used.  For
     * example, 'de_CH' was requested, but nothing was found there, so 'de' was
     * used.  U_USING_DEFAULT_WARNING indicates that the default locale data was
     * used; neither the requested locale nor any of its fall back locales
     * could be found.
     * The caller owns the returned object and is responsible for deleting it.
     * @stable ICU 2.0
     */
    static BreakIterator* U_EXPORT2
    createWordInstance(const Locale& where, UErrorCode& status);

/**
     * Create BreakIterator for line-breaks using specified locale.
     * Returns an instance of a BreakIterator implementing line breaks. Line
     * breaks are logically possible line breaks, actual line breaks are
     * usually determined based on display width.
     * LineBreak is useful for word wrapping text.
     * @param where the locale.
     * @param status The error code.
     * @return A BreakIterator for line-breaks.  The UErrorCode& status
     * parameter is used to return status information to the user.
     * To check whether the construction succeeded or not, you should check
     * the value of U_SUCCESS(err).  If you wish more detailed information, you
     * can check for informational error results which still indicate success.
     * U_USING_FALLBACK_WARNING indicates that a fall back locale was used.  For
     * example, 'de_CH' was requested, but nothing was found there, so 'de' was
     * used.  U_USING_DEFAULT_WARNING indicates that the default locale data was
     * used; neither the requested locale nor any of its fall back locales
     * could be found.
     * The caller owns the returned object and is responsible for deleting it.
     * @stable ICU 2.0
     */
    static BreakIterator* U_EXPORT2
    createLineInstance(const Locale& where, UErrorCode& status);

/**
     * Create BreakIterator for character-breaks using specified locale
     * Returns an instance of a BreakIterator implementing character breaks.
     * Character breaks are boundaries of combining character sequences.
     * @param where the locale.
     * @param status The error code.
     * @return A BreakIterator for character-breaks.  The UErrorCode& status
     * parameter is used to return status information to the user.
     * To check whether the construction succeeded or not, you should check
     * the value of U_SUCCESS(err).  If you wish more detailed information, you
     * can check for informational error results which still indicate success.
     * U_USING_FALLBACK_WARNING indicates that a fall back locale was used.  For
     * example, 'de_CH' was requested, but nothing was found there, so 'de' was
     * used.  U_USING_DEFAULT_WARNING indicates that the default locale data was
     * used; neither the requested locale nor any of its fall back locales
     * could be found.
     * The caller owns the returned object and is responsible for deleting it.
     * @stable ICU 2.0
     */
    static BreakIterator* U_EXPORT2
    createCharacterInstance(const Locale& where, UErrorCode& status);

/**
     * Create BreakIterator for sentence-breaks using specified locale
     * Returns an instance of a BreakIterator implementing sentence breaks.
     * @param where the locale.
     * @param status The error code.
     * @return A BreakIterator for sentence-breaks.  The UErrorCode& status
     * parameter is used to return status information to the user.
     * To check whether the construction succeeded or not, you should check
     * the value of U_SUCCESS(err).  If you wish more detailed information, you
     * can check for informational error results which still indicate success.
     * U_USING_FALLBACK_WARNING indicates that a fall back locale was used.  For
     * example, 'de_CH' was requested, but nothing was found there, so 'de' was
     * used.  U_USING_DEFAULT_WARNING indicates that the default locale data was
     * used; neither the requested locale nor any of its fall back locales
     * could be found.
     * The caller owns the returned object and is responsible for deleting it.
     * @stable ICU 2.0
     */
    static BreakIterator* U_EXPORT2
    createSentenceInstance(const Locale& where, UErrorCode& status);

/**
     * Create BreakIterator for title-casing breaks using the specified locale
     * Returns an instance of a BreakIterator implementing title breaks.
     * The iterator returned locates title boundaries as described for
     * Unicode 3.2 only. For Unicode 4.0 and above title boundary iteration,
     * please use Word Boundary iterator.{@link #createWordInstance }
     *
     * @param where the locale.
     * @param status The error code.
     * @return A BreakIterator for title-breaks.  The UErrorCode& status
     * parameter is used to return status information to the user.
     * To check whether the construction succeeded or not, you should check
     * the value of U_SUCCESS(err).  If you wish more detailed information, you
     * can check for informational error results which still indicate success.
     * U_USING_FALLBACK_WARNING indicates that a fall back locale was used.  For
     * example, 'de_CH' was requested, but nothing was found there, so 'de' was
     * used.  U_USING_DEFAULT_WARNING indicates that the default locale data was
     * used; neither the requested locale nor any of its fall back locales
     * could be found.
     * The caller owns the returned object and is responsible for deleting it.
     * @stable ICU 2.1
     */
    static BreakIterator* U_EXPORT2
    createTitleInstance(const Locale& where, UErrorCode& status);

/**
 * Get the set of Locales for which TextBoundaries are installed.
 * Note: this will not return locales added through the register
 * call. To see the registered locales too, use the getAvailableLocales
 * function that returns a StringEnumeration object 
 * @param count the output parameter of number of elements in the locale list
 * @return available locales
 * @stable ICU 2.0
 */
 static const Locale* U_EXPORT2 getAvailableLocales(int32_t& count);

/**
     * Get name of the object for the desired Locale, in the desired language.
     * @param objectLocale must be from getAvailableLocales.
     * @param displayLocale specifies the desired locale for output.
     * @param name the fill-in parameter of the return value
     * Uses best match.
     * @return user-displayable name
     * @stable ICU 2.0
     */
    static UnicodeString& U_EXPORT2 getDisplayName(const Locale& objectLocale,
                                         const Locale& displayLocale,
                                         UnicodeString& name);

/**
     * Get name of the object for the desired Locale, in the language of the
     * default locale.
     * @param objectLocale must be from getMatchingLocales
     * @param name the fill-in parameter of the return value
     * @return user-displayable name
     * @stable ICU 2.0
     */
    static UnicodeString& U_EXPORT2 getDisplayName(const Locale& objectLocale,
                                         UnicodeString& name);

/**
     * Deprecated functionality. Use clone() instead.
     *
     * Thread safe client-buffer-based cloning operation
     *    Do NOT call delete on a safeclone, since 'new' is not used to create it.
     * @param stackBuffer user allocated space for the new clone. If NULL new memory will be allocated.
     * If buffer is not large enough, new memory will be allocated.
     * @param BufferSize reference to size of allocated space.
     * If BufferSize == 0, a sufficient size for use in cloning will
     * be returned ('pre-flighting')
     * If BufferSize is not enough for a stack-based safe clone,
     * new memory will be allocated.
     * @param status to indicate whether the operation went on smoothly or there were errors
     *  An informational status value, U_SAFECLONE_ALLOCATED_ERROR, is used if any allocations were
     *  necessary.
     * @return pointer to the new clone
     *
     * @deprecated ICU 52. Use clone() instead.
     */
    virtual BreakIterator *  createBufferClone(void *stackBuffer,
                                               int32_t &BufferSize,
                                               UErrorCode &status) = 0;

#ifndef U_HIDE_DEPRECATED_API

/**
     *   Determine whether the BreakIterator was created in user memory by
     *   createBufferClone(), and thus should not be deleted.  Such objects
     *   must be closed by an explicit call to the destructor (not delete).
     * @deprecated ICU 52. Always delete the BreakIterator.
     */
    inline UBool isBufferClone(void);

#endif /* U_HIDE_DEPRECATED_API */

#if !UCONFIG_NO_SERVICE
    /**
     * Register a new break iterator of the indicated kind, to use in the given locale.
     * The break iterator will be adopted.  Clones of the iterator will be returned
     * if a request for a break iterator of the given kind matches or falls back to
     * this locale.
     * Because ICU may choose to cache BreakIterators internally, this must
     * be called at application startup, prior to any calls to
     * BreakIterator::createXXXInstance to avoid undefined behavior.
     * @param toAdopt the BreakIterator instance to be adopted
     * @param locale the Locale for which this instance is to be registered
     * @param kind the type of iterator for which this instance is to be registered
     * @param status the in/out status code, no special meanings are assigned
     * @return a registry key that can be used to unregister this instance
     * @stable ICU 2.4
     */
    static URegistryKey U_EXPORT2 registerInstance(BreakIterator* toAdopt,
                                        const Locale& locale,
                                        UBreakIteratorType kind,
                                        UErrorCode& status);

/**
     * Unregister a previously-registered BreakIterator using the key returned from the
     * register call.  Key becomes invalid after a successful call and should not be used again.
     * The BreakIterator corresponding to the key will be deleted.
     * Because ICU may choose to cache BreakIterators internally, this should
     * be called during application shutdown, after all calls to
     * BreakIterator::createXXXInstance to avoid undefined behavior.
     * @param key the registry key returned by a previous call to registerInstance
     * @param status the in/out status code, no special meanings are assigned
     * @return TRUE if the iterator for the key was successfully unregistered
     * @stable ICU 2.4
     */
    static UBool U_EXPORT2 unregister(URegistryKey key, UErrorCode& status);

/**
     * Return a StringEnumeration over the locales available at the time of the call,
     * including registered locales.
     * @return a StringEnumeration over the locales available at the time of the call
     * @stable ICU 2.4
     */
    static StringEnumeration* U_EXPORT2 getAvailableLocales(void);
#endif

/**
     * Returns the locale for this break iterator. Two flavors are available: valid and
     * actual locale.
     * @stable ICU 2.8
     */
    Locale getLocale(ULocDataLocaleType type, UErrorCode& status) const;

#ifndef U_HIDE_INTERNAL_API
    /** Get the locale for this break iterator object. You can choose between valid and actual locale.
     *  @param type type of the locale we're looking for (valid or actual)
     *  @param status error code for the operation
     *  @return the locale
     *  @internal
     */
    const char *getLocaleID(ULocDataLocaleType type, UErrorCode& status) const;
#endif  /* U_HIDE_INTERNAL_API */

/**
     *  Set the subject text string upon which the break iterator is operating
     *  without changing any other aspect of the matching state.
     *  The new and previous text strings must have the same content.
     *
     *  This function is intended for use in environments where ICU is operating on
     *  strings that may move around in memory.  It provides a mechanism for notifying
     *  ICU that the string has been relocated, and providing a new UText to access the
     *  string in its new position.
     *
     *  Note that the break iterator implementation never copies the underlying text
     *  of a string being processed, but always operates directly on the original text
     *  provided by the user. Refreshing simply drops the references to the old text
     *  and replaces them with references to the new.
     *
     *  Caution:  this function is normally used only by very specialized,
     *  system-level code.  One example use case is with garbage collection that moves
     *  the text in memory.
     *
     * @param input      The new (moved) text string.
     * @param status     Receives errors detected by this function.
     * @return           *this
     *
     * @stable ICU 49
     */
    virtual BreakIterator &refreshInputText(UText *input, UErrorCode &status) = 0;

private:
    static BreakIterator* buildInstance(const Locale& loc, const char *type, UErrorCode& status);
    static BreakIterator* createInstance(const Locale& loc, int32_t kind, UErrorCode& status);
    static BreakIterator* makeInstance(const Locale& loc, int32_t kind, UErrorCode& status);

friend class ICUBreakIteratorFactory;
    friend class ICUBreakIteratorService;

protected:
    // Do not enclose protected default/copy constructors with #ifndef U_HIDE_INTERNAL_API
    // or else the compiler will create a public ones.
    /** @internal */
    BreakIterator();
    /** @internal */
    BreakIterator (const BreakIterator &other);
#ifndef U_HIDE_INTERNAL_API
    /** @internal */
    BreakIterator (const Locale& valid, const Locale &actual);
    /** @internal. Assignment Operator, used by RuleBasedBreakIterator. */
    BreakIterator &operator = (const BreakIterator &other);
#endif  /* U_HIDE_INTERNAL_API */

private:

/** @internal (private) */
    char actualLocale[ULOC_FULLNAME_CAPACITY];
    char validLocale[ULOC_FULLNAME_CAPACITY];
};

#ifndef U_HIDE_DEPRECATED_API

inline UBool BreakIterator::isBufferClone()
{
    return FALSE;
}

#endif /* U_HIDE_DEPRECATED_API */

U_NAMESPACE_END

#endif /* #if !UCONFIG_NO_BREAK_ITERATION */

#endif // BRKITER_H
//eof

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