1 /* 2 ********************************************************************** 3 * Copyright (c) 2001-2011, 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 #include "unicode/unifilt.h" 17 18 static const UChar CURR_ID[] = {65, 110, 121, 45, 0x52, 0x65, 0x6D, 0x6F, 0x76, 0x65, 0x00}; /* "Any-Remove" */ 19 20 U_NAMESPACE_BEGIN 21 22 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(RemoveTransliterator) 23 24 /** 25 * Factory method 26 */ 27 static Transliterator* RemoveTransliterator_create(const UnicodeString& /*ID*/, 28 Transliterator::Token /*context*/) { 29 /* We don't need the ID or context. We just remove data */ 30 return new RemoveTransliterator(); 31 } 32 33 /** 34 * System registration hook. 35 */ 36 void RemoveTransliterator::registerIDs() { 37 38 Transliterator::_registerFactory(UnicodeString(TRUE, ::CURR_ID, -1), 39 RemoveTransliterator_create, integerToken(0)); 40 41 Transliterator::_registerSpecialInverse(UNICODE_STRING_SIMPLE("Remove"), 42 UNICODE_STRING_SIMPLE("Null"), FALSE); 43 } 44 45 RemoveTransliterator::RemoveTransliterator() : Transliterator(UnicodeString(TRUE, ::CURR_ID, -1), 0) {} 46 47 RemoveTransliterator::~RemoveTransliterator() {} 48 49 Transliterator* RemoveTransliterator::clone(void) const { 50 Transliterator* result = new RemoveTransliterator(); 51 if (result != NULL && getFilter() != 0) { 52 result->adoptFilter((UnicodeFilter*)(getFilter()->clone())); 53 } 54 return result; 55 } 56 57 void RemoveTransliterator::handleTransliterate(Replaceable& text, UTransPosition& index, 58 UBool /*isIncremental*/) const { 59 // Our caller (filteredTransliterate) has already narrowed us 60 // to an unfiltered run. Delete it. 61 UnicodeString empty; 62 text.handleReplaceBetween(index.start, index.limit, empty); 63 int32_t len = index.limit - index.start; 64 index.contextLimit -= len; 65 index.limit -= len; 66 } 67 U_NAMESPACE_END 68 69 #endif /* #if !UCONFIG_NO_TRANSLITERATION */ 70
