The Tor Browser / file comparison
comparison: intl/icu/source/i18n/funcrepl.cpp
intl/icu/source/i18n/funcrepl.cpp
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
equal
deleted
inserted
replaced
| -1:000000000000 | 0:ee032a7c0f1d |
|---|---|
| 1 /* | |
| 2 ********************************************************************** | |
| 3 * Copyright (c) 2002-2012, International Business Machines Corporation | |
| 4 * and others. All Rights Reserved. | |
| 5 ********************************************************************** | |
| 6 * Date Name Description | |
| 7 * 02/04/2002 aliu Creation. | |
| 8 ********************************************************************** | |
| 9 */ | |
| 10 | |
| 11 #include "unicode/utypes.h" | |
| 12 | |
| 13 #if !UCONFIG_NO_TRANSLITERATION | |
| 14 | |
| 15 #include "unicode/translit.h" | |
| 16 #include "unicode/uniset.h" | |
| 17 #include "funcrepl.h" | |
| 18 | |
| 19 static const UChar AMPERSAND = 38; // '&' | |
| 20 static const UChar OPEN[] = {40,32,0}; // "( " | |
| 21 static const UChar CLOSE[] = {32,41,0}; // " )" | |
| 22 | |
| 23 U_NAMESPACE_BEGIN | |
| 24 | |
| 25 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(FunctionReplacer) | |
| 26 | |
| 27 /** | |
| 28 * Construct a replacer that takes the output of the given | |
| 29 * replacer, passes it through the given transliterator, and emits | |
| 30 * the result as output. | |
| 31 */ | |
| 32 FunctionReplacer::FunctionReplacer(Transliterator* adoptedTranslit, | |
| 33 UnicodeFunctor* adoptedReplacer) { | |
| 34 translit = adoptedTranslit; | |
| 35 replacer = adoptedReplacer; | |
| 36 } | |
| 37 | |
| 38 /** | |
| 39 * Copy constructor. | |
| 40 */ | |
| 41 FunctionReplacer::FunctionReplacer(const FunctionReplacer& other) : | |
| 42 UnicodeFunctor(other), | |
| 43 UnicodeReplacer(other) | |
| 44 { | |
| 45 translit = other.translit->clone(); | |
| 46 replacer = other.replacer->clone(); | |
| 47 } | |
| 48 | |
| 49 /** | |
| 50 * Destructor | |
| 51 */ | |
| 52 FunctionReplacer::~FunctionReplacer() { | |
| 53 delete translit; | |
| 54 delete replacer; | |
| 55 } | |
| 56 | |
| 57 /** | |
| 58 * Implement UnicodeFunctor | |
| 59 */ | |
| 60 UnicodeFunctor* FunctionReplacer::clone() const { | |
| 61 return new FunctionReplacer(*this); | |
| 62 } | |
| 63 | |
| 64 /** | |
| 65 * UnicodeFunctor API. Cast 'this' to a UnicodeReplacer* pointer | |
| 66 * and return the pointer. | |
| 67 */ | |
| 68 UnicodeReplacer* FunctionReplacer::toReplacer() const { | |
| 69 FunctionReplacer *nonconst_this = const_cast<FunctionReplacer *>(this); | |
| 70 UnicodeReplacer *nonconst_base = static_cast<UnicodeReplacer *>(nonconst_this); | |
| 71 | |
| 72 return nonconst_base; | |
| 73 } | |
| 74 | |
| 75 /** | |
| 76 * UnicodeReplacer API | |
| 77 */ | |
| 78 int32_t FunctionReplacer::replace(Replaceable& text, | |
| 79 int32_t start, | |
| 80 int32_t limit, | |
| 81 int32_t& cursor) | |
| 82 { | |
| 83 | |
| 84 // First delegate to subordinate replacer | |
| 85 int32_t len = replacer->toReplacer()->replace(text, start, limit, cursor); | |
| 86 limit = start + len; | |
| 87 | |
| 88 // Now transliterate | |
| 89 limit = translit->transliterate(text, start, limit); | |
| 90 | |
| 91 return limit - start; | |
| 92 } | |
| 93 | |
| 94 /** | |
| 95 * UnicodeReplacer API | |
| 96 */ | |
| 97 UnicodeString& FunctionReplacer::toReplacerPattern(UnicodeString& rule, | |
| 98 UBool escapeUnprintable) const { | |
| 99 UnicodeString str; | |
| 100 rule.truncate(0); | |
| 101 rule.append(AMPERSAND); | |
| 102 rule.append(translit->getID()); | |
| 103 rule.append(OPEN, 2); | |
| 104 rule.append(replacer->toReplacer()->toReplacerPattern(str, escapeUnprintable)); | |
| 105 rule.append(CLOSE, 2); | |
| 106 return rule; | |
| 107 } | |
| 108 | |
| 109 /** | |
| 110 * Implement UnicodeReplacer | |
| 111 */ | |
| 112 void FunctionReplacer::addReplacementSetTo(UnicodeSet& toUnionTo) const { | |
| 113 UnicodeSet set; | |
| 114 toUnionTo.addAll(translit->getTargetSet(set)); | |
| 115 } | |
| 116 | |
| 117 /** | |
| 118 * UnicodeFunctor API | |
| 119 */ | |
| 120 void FunctionReplacer::setData(const TransliterationRuleData* d) { | |
| 121 replacer->setData(d); | |
| 122 } | |
| 123 | |
| 124 U_NAMESPACE_END | |
| 125 | |
| 126 #endif /* #if !UCONFIG_NO_TRANSLITERATION */ | |
| 127 | |
| 128 //eof |
