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      1 /*
      2 *******************************************************************************
      3 *
      4 *   Copyright (C) 2001-2008, International Business Machines
      5 *   Corporation and others.  All Rights Reserved.
      6 *
      7 *******************************************************************************
      8 *   file name:  casetrn.h
      9 *   encoding:   US-ASCII
     10 *   tab size:   8 (not used)
     11 *   indentation:4
     12 *
     13 *   created on: 2004sep03
     14 *   created by: Markus W. Scherer
     15 *
     16 *   Implementation class for lower-/upper-/title-casing transliterators.
     17 */
     18 
     19 #ifndef __CASETRN_H__
     20 #define __CASETRN_H__
     21 
     22 #include "unicode/utypes.h"
     23 
     24 #if !UCONFIG_NO_TRANSLITERATION
     25 
     26 #include "unicode/translit.h"
     27 #include "ucase.h"
     28 
     29 U_NAMESPACE_BEGIN
     30 
     31 /**
     32  * A transliterator that performs locale-sensitive
     33  * case mapping.
     34  */
     35 class CaseMapTransliterator : public Transliterator {
     36 public:
     37     /**
     38      * Constructs a transliterator.
     39      * @param loc the given locale.
     40      * @param id  the transliterator ID.
     41      * @param map the full case mapping function (see ucase.h)
     42      */
     43     CaseMapTransliterator(const UnicodeString &id, UCaseMapFull *map);
     44 
     45     /**
     46      * Destructor.
     47      */
     48     virtual ~CaseMapTransliterator();
     49 
     50     /**
     51      * Copy constructor.
     52      */
     53     CaseMapTransliterator(const CaseMapTransliterator&);
     54 
     55     /**
     56      * Transliterator API.
     57      * @return a copy of the object.
     58      */
     59     virtual Transliterator* clone(void) const = 0;
     60 
     61     /**
     62      * ICU "poor man's RTTI", returns a UClassID for the actual class.
     63      */
     64     //virtual UClassID getDynamicClassID() const;
     65 
     66     /**
     67      * ICU "poor man's RTTI", returns a UClassID for this class.
     68      */
     69     U_I18N_API static UClassID U_EXPORT2 getStaticClassID();
     70 
     71 protected:
     72     /**
     73      * Implements {@link Transliterator#handleTransliterate}.
     74      * @param text        the buffer holding transliterated and
     75      *                    untransliterated text
     76      * @param offset      the start and limit of the text, the position
     77      *                    of the cursor, and the start and limit of transliteration.
     78      * @param incremental if true, assume more text may be coming after
     79      *                    pos.contextLimit.  Otherwise, assume the text is complete.
     80      */
     81     virtual void handleTransliterate(Replaceable& text,
     82                                      UTransPosition& offsets,
     83                                      UBool isIncremental) const;
     84 
     85     const UCaseProps *fCsp;
     86     UCaseMapFull *fMap;
     87 
     88 private:
     89     /**
     90      * Assignment operator.
     91      */
     92     CaseMapTransliterator& operator=(const CaseMapTransliterator&);
     93 
     94 };
     95 
     96 U_NAMESPACE_END
     97 
     98 /** case context iterator using a Replaceable. This must be a C function because it is a callback. */
     99 U_CFUNC UChar32 U_CALLCONV
    100 utrans_rep_caseContextIterator(void *context, int8_t dir);
    101 
    102 #endif /* #if !UCONFIG_NO_TRANSLITERATION */
    103 
    104 #endif
    105