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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 *
      6 *   Copyright (C) 2001-2008, International Business Machines
      7 *   Corporation and others.  All Rights Reserved.
      8 *
      9 *******************************************************************************
     10 *   file name:  casetrn.h
     11 *   encoding:   UTF-8
     12 *   tab size:   8 (not used)
     13 *   indentation:4
     14 *
     15 *   created on: 2004sep03
     16 *   created by: Markus W. Scherer
     17 *
     18 *   Implementation class for lower-/upper-/title-casing transliterators.
     19 */
     20 
     21 #ifndef __CASETRN_H__
     22 #define __CASETRN_H__
     23 
     24 #include "unicode/utypes.h"
     25 
     26 #if !UCONFIG_NO_TRANSLITERATION
     27 
     28 #include "unicode/translit.h"
     29 #include "ucase.h"
     30 
     31 U_NAMESPACE_BEGIN
     32 
     33 /**
     34  * A transliterator that performs locale-sensitive
     35  * case mapping.
     36  */
     37 class CaseMapTransliterator : public Transliterator {
     38 public:
     39     /**
     40      * Constructs a transliterator.
     41      * @param loc the given locale.
     42      * @param id  the transliterator ID.
     43      * @param map the full case mapping function (see ucase.h)
     44      */
     45     CaseMapTransliterator(const UnicodeString &id, UCaseMapFull *map);
     46 
     47     /**
     48      * Destructor.
     49      */
     50     virtual ~CaseMapTransliterator();
     51 
     52     /**
     53      * Copy constructor.
     54      */
     55     CaseMapTransliterator(const CaseMapTransliterator&);
     56 
     57     /**
     58      * Transliterator API.
     59      * @return a copy of the object.
     60      */
     61     virtual Transliterator* clone(void) const = 0;
     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      * Implements {@link Transliterator#handleTransliterate}.
     76      * @param text        the buffer holding transliterated and
     77      *                    untransliterated text
     78      * @param offset      the start and limit of the text, the position
     79      *                    of the cursor, and the start and limit of transliteration.
     80      * @param incremental if true, assume more text may be coming after
     81      *                    pos.contextLimit.  Otherwise, assume the text is complete.
     82      */
     83     virtual void handleTransliterate(Replaceable& text,
     84                                      UTransPosition& offsets,
     85                                      UBool isIncremental) const;
     86 
     87     UCaseMapFull *fMap;
     88 
     89 private:
     90     /**
     91      * Assignment operator.
     92      */
     93     CaseMapTransliterator& operator=(const CaseMapTransliterator&);
     94 
     95 };
     96 
     97 U_NAMESPACE_END
     98 
     99 /** case context iterator using a Replaceable. This must be a C function because it is a callback. */
    100 U_CFUNC UChar32 U_CALLCONV
    101 utrans_rep_caseContextIterator(void *context, int8_t dir);
    102 
    103 #endif /* #if !UCONFIG_NO_TRANSLITERATION */
    104 
    105 #endif
    106