projects / apple / icu.git / blame
| Commit | Line | Data |
|---|---|---|
| b75a7d8f A |
1 | /* |
| 2 | ********************************************************************** | |
| 4388f060 | 3 | * Copyright (c) 2001-2011, International Business Machines |
| b75a7d8f A |
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" | |
| 73c04bcf | 16 | #include "unicode/unifilt.h" |
| b75a7d8f | 17 | |
| 73c04bcf | 18 | static const UChar CURR_ID[] = {65, 110, 121, 45, 0x52, 0x65, 0x6D, 0x6F, 0x76, 0x65, 0x00}; /* "Any-Remove" */ |
| b75a7d8f A |
19 | |
| 20 | U_NAMESPACE_BEGIN | |
| 21 | ||
| 374ca955 | 22 | UOBJECT_DEFINE_RTTI_IMPLEMENTATION(RemoveTransliterator) |
| b75a7d8f | 23 | |
| 73c04bcf A |
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 | ||
| b75a7d8f A |
33 | /** |
| 34 | * System registration hook. | |
| 35 | */ | |
| 36 | void RemoveTransliterator::registerIDs() { | |
| 37 | ||
| 4388f060 A |
38 | Transliterator::_registerFactory(UnicodeString(TRUE, ::CURR_ID, -1), |
| 39 | RemoveTransliterator_create, integerToken(0)); | |
| b75a7d8f A |
40 | |
| 41 | Transliterator::_registerSpecialInverse(UNICODE_STRING_SIMPLE("Remove"), | |
| 42 | UNICODE_STRING_SIMPLE("Null"), FALSE); | |
| 43 | } | |
| 44 | ||
| 4388f060 | 45 | RemoveTransliterator::RemoveTransliterator() : Transliterator(UnicodeString(TRUE, ::CURR_ID, -1), 0) {} |
| b75a7d8f A |
46 | |
| 47 | RemoveTransliterator::~RemoveTransliterator() {} | |
| 48 | ||
| 49 | Transliterator* RemoveTransliterator::clone(void) const { | |
| 73c04bcf | 50 | Transliterator* result = new RemoveTransliterator(); |
| 46f4442e | 51 | if (result != NULL && getFilter() != 0) { |
| 73c04bcf A |
52 | result->adoptFilter((UnicodeFilter*)(getFilter()->clone())); |
| 53 | } | |
| 54 | return result; | |
| b75a7d8f A |
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 */ |