icuSources/i18n/remtrans.h

   1 /*
   2 **********************************************************************
   3 *   Copyright (c) 2001, International Business Machines
   4 *   Corporation and others.  All Rights Reserved.
   5 **********************************************************************
   6 *   Date        Name        Description
   7 *   04/02/2001  aliu        Creation.
   8 **********************************************************************
   9 */
  10 #ifndef REMTRANS_H
  11 #define REMTRANS_H
  12
  13 #include "unicode/utypes.h"
  14
  15 #if !UCONFIG_NO_TRANSLITERATION
  16
  17 #include "unicode/translit.h"
  18
  19 U_NAMESPACE_BEGIN
  20
  21 /**
  22  * A transliterator that removes text.
  23  * @author Alan Liu
  24  */
  25 class U_I18N_API RemoveTransliterator : public Transliterator {
  26
  27 public:
  28
  29     /**
  30      * Constructs a transliterator.
  31      */
  32     RemoveTransliterator();
  33
  34     /**
  35      * Destructor.
  36      */
  37     virtual ~RemoveTransliterator();
  38
  39     /**
  40      * System registration hook.
  41      */
  42     static void registerIDs();
  43
  44     /**
  45      * Transliterator API.
  46      * @return A copy of the object.
  47      */
  48     Transliterator* clone(void) const;
  49
  50     /**
  51      * Implements {@link Transliterator#handleTransliterate}.
  52      * @param text          the buffer holding transliterated and
  53      *                      untransliterated text
  54      * @param offset        the start and limit of the text, the position
  55      *                      of the cursor, and the start and limit of transliteration.
  56      * @param incremental   if true, assume more text may be coming after
  57      *                      pos.contextLimit. Otherwise, assume the text is complete.
  58      */
  59     virtual void handleTransliterate(Replaceable& text, UTransPosition& offset,
  60                                      UBool isIncremental) const;
  61
  62     /**
  63      * ICU "poor man's RTTI", returns a UClassID for the actual class.
  64      *
  65      * @draft ICU 2.2
  66      */
  67     virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); }
  68
  69     /**
  70      * ICU "poor man's RTTI", returns a UClassID for this class.
  71      *
  72      * @draft ICU 2.2
  73      */
  74     static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
  75
  76  private:
  77
  78     /**
  79      * Factory method
  80      */
  81     static Transliterator* _create(const UnicodeString& ID, Token context);
  82
  83     /**
  84      * The address of this static class variable serves as this class's ID
  85      * for ICU "poor man's RTTI".
  86      */
  87     static const char fgClassID;
  88 };
  89
  90 U_NAMESPACE_END
  91
  92 #endif /* #if !UCONFIG_NO_TRANSLITERATION */
  93
  94 #endif