1 // Copyright (C) 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 Transliterator* clone(void) 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 105