icuSources/i18n/remtrans.cpp

   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
  11 #include "unicode/utypes.h"
  12
  13 #if !UCONFIG_NO_TRANSLITERATION
  14
  15 #include "remtrans.h"
  16
  17 static const UChar ID[] = {65, 110, 121, 45, 0x52, 0x65, 0x6D, 0x6F, 0x76, 0x65, 0x00}; /* "Any-Remove" */
  18
  19 U_NAMESPACE_BEGIN
  20
  21 const char RemoveTransliterator::fgClassID=0;
  22
  23 /**
  24  * System registration hook.
  25  */
  26 void RemoveTransliterator::registerIDs() {
  27
  28     Transliterator::_registerFactory(::ID, _create, integerToken(0));
  29
  30     Transliterator::_registerSpecialInverse(UNICODE_STRING_SIMPLE("Remove"),
  31                                             UNICODE_STRING_SIMPLE("Null"), FALSE);
  32 }
  33
  34 /**
  35  * Factory method
  36  */
  37 Transliterator* RemoveTransliterator::_create(const UnicodeString& ID,
  38                                               Token /*context*/) {
  39     return new RemoveTransliterator();
  40 }
  41
  42 RemoveTransliterator::RemoveTransliterator() : Transliterator(::ID, 0) {}
  43
  44 RemoveTransliterator::~RemoveTransliterator() {}
  45
  46 Transliterator* RemoveTransliterator::clone(void) const {
  47     return new RemoveTransliterator();
  48 }
  49
  50 void RemoveTransliterator::handleTransliterate(Replaceable& text, UTransPosition& index,
  51                                                UBool /*isIncremental*/) const {
  52     // Our caller (filteredTransliterate) has already narrowed us
  53     // to an unfiltered run.  Delete it.
  54     UnicodeString empty;
  55     text.handleReplaceBetween(index.start, index.limit, empty);
  56     int32_t len = index.limit - index.start;
  57     index.contextLimit -= len;
  58     index.limit -= len;
  59 }
  60 U_NAMESPACE_END
  61
  62 #endif /* #if !UCONFIG_NO_TRANSLITERATION */