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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) 2008-2015, International Business Machines
	6	* Corporation and others. All Rights Reserved.
	7	**********************************************************************
	8	* Date Name Description
	9	* 05/11/2008 Andy Heninger Ported from Java
	10	**********************************************************************
	11	*/
	12	#ifndef BRKTRANS_H
	13	#define BRKTRANS_H
	14
	15	#include "unicode/utypes.h"
	16
	17	#if !UCONFIG_NO_TRANSLITERATION && !UCONFIG_NO_BREAK_ITERATION
	18
	19	#include "unicode/translit.h"
	20
	21	#include "unicode/localpointer.h"
	22
	23
	24	U_NAMESPACE_BEGIN
	25
	26	class UVector32;
	27
	28	/**
	29	* A transliterator that pInserts the specified characters at word breaks.
	30	* To restrict it to particular characters, use a filter.
	31	* TODO: this is an internal class, and only temporary.
	32	* Remove it once we have \b notation in Transliterator.
	33	*/
	34	class BreakTransliterator : public Transliterator {
	35	public:
	36
	37	/**
	38	* Constructs a transliterator.
	39	* @param adoptedFilter the filter for this transliterator.
	40	*/
	41	BreakTransliterator(UnicodeFilter* adoptedFilter = 0);
	42
	43	/**
	44	* Destructor.
	45	*/
	46	virtual ~BreakTransliterator();
	47
	48	/**
	49	* Copy constructor.
	50	*/
	51	BreakTransliterator(const BreakTransliterator&);
	52
	53	/**
	54	* Transliterator API.
	55	* @return A copy of the object.
	56	*/
	57	virtual BreakTransliterator* clone() const;
	58
	59	virtual const UnicodeString &getInsertion() const;
	60
	61	virtual void setInsertion(const UnicodeString &insertion);
	62
	63	/**
	64	* ICU "poor man's RTTI", returns a UClassID for the actual class.
	65	*/
	66	virtual UClassID getDynamicClassID() const;
	67
	68	/**
	69	* ICU "poor man's RTTI", returns a UClassID for this class.
	70	*/
	71	U_I18N_API static UClassID U_EXPORT2 getStaticClassID();
	72
	73	protected:
	74
	75	/**
	76	* Implements {@link Transliterator#handleTransliterate}.
	77	* @param text the buffer holding transliterated and
	78	* untransliterated text
	79	* @param offset the start and limit of the text, the position
	80	* of the cursor, and the start and limit of transliteration.
	81	* @param incremental if true, assume more text may be coming after
	82	* pos.contextLimit. Otherwise, assume the text is complete.
	83	*/
	84	virtual void handleTransliterate(Replaceable& text, UTransPosition& offset,
	85	UBool isIncremental) const;
	86
	87	private:
	88	LocalPointer<BreakIterator> cachedBI;
	89	LocalPointer<UVector32> cachedBoundaries;
	90	UnicodeString fInsertion;
	91
	92	static UnicodeString replaceableAsString(Replaceable &r);
	93
	94	/**
	95	* Assignment operator.
	96	*/
	97	BreakTransliterator& operator=(const BreakTransliterator&);
	98	};
	99
	100	U_NAMESPACE_END
	101
	102	#endif /* #if !UCONFIG_NO_TRANSLITERATION */
	103
	104	#endif