2 **********************************************************************
3 * Copyright (C) 2001-2012, International Business Machines
4 * Corporation and others. All Rights Reserved.
5 **********************************************************************
6 * Date Name Description
7 * 07/26/01 aliu Creation.
8 **********************************************************************
11 #include "unicode/utypes.h"
13 #if !UCONFIG_NO_TRANSLITERATION
16 #include "unicode/unistr.h"
21 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(Quantifier)
23 Quantifier::Quantifier(UnicodeFunctor *adoptedMatcher,
24 uint32_t _minCount, uint32_t _maxCount) {
25 // assert(adopted != 0);
26 // assert(minCount <= maxCount);
27 matcher = adoptedMatcher;
28 this->minCount = _minCount;
29 this->maxCount = _maxCount;
32 Quantifier::Quantifier(const Quantifier& o) :
35 matcher(o.matcher->clone()),
41 Quantifier::~Quantifier() {
46 * Implement UnicodeFunctor
48 UnicodeFunctor* Quantifier::clone() const {
49 return new Quantifier(*this);
53 * UnicodeFunctor API. Cast 'this' to a UnicodeMatcher* pointer
54 * and return the pointer.
56 UnicodeMatcher* Quantifier::toMatcher() const {
57 Quantifier *nonconst_this = const_cast<Quantifier *>(this);
58 UnicodeMatcher *nonconst_base = static_cast<UnicodeMatcher *>(nonconst_this);
63 UMatchDegree Quantifier::matches(const Replaceable& text,
67 int32_t start = offset;
69 while (count < maxCount) {
71 UMatchDegree m = matcher->toMatcher()->matches(text, offset, limit, incremental);
75 // If offset has not moved we have a zero-width match.
76 // Don't keep matching it infinitely.
79 } else if (incremental && m == U_PARTIAL_MATCH) {
80 return U_PARTIAL_MATCH;
85 if (incremental && offset == limit) {
86 return U_PARTIAL_MATCH;
88 if (count >= minCount) {
96 * Implement UnicodeMatcher
98 UnicodeString& Quantifier::toPattern(UnicodeString& result,
99 UBool escapeUnprintable) const {
101 matcher->toMatcher()->toPattern(result, escapeUnprintable);
104 return result.append((UChar)63); /*?*/
105 } else if (maxCount == MAX) {
106 return result.append((UChar)42); /***/
109 } else if (minCount == 1 && maxCount == MAX) {
110 return result.append((UChar)43); /*+*/
112 result.append((UChar)123); /*{*/
113 ICU_Utility::appendNumber(result, minCount);
114 result.append((UChar)44); /*,*/
115 if (maxCount != MAX) {
116 ICU_Utility::appendNumber(result, maxCount);
118 result.append((UChar)125); /*}*/
123 * Implement UnicodeMatcher
125 UBool Quantifier::matchesIndexValue(uint8_t v) const {
126 return (minCount == 0) || matcher->toMatcher()->matchesIndexValue(v);
130 * Implement UnicodeMatcher
132 void Quantifier::addMatchSetTo(UnicodeSet& toUnionTo) const {
134 matcher->toMatcher()->addMatchSetTo(toUnionTo);
139 * Implement UnicodeFunctor
141 void Quantifier::setData(const TransliterationRuleData* d) {
147 #endif /* #if !UCONFIG_NO_TRANSLITERATION */