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Unified Diff: icu46/source/i18n/quant.cpp

Issue 5516007: Check in the pristine copy of ICU 4.6... (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/
Patch Set: Created 10 years ago
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Index: icu46/source/i18n/quant.cpp
===================================================================
--- icu46/source/i18n/quant.cpp (revision 0)
+++ icu46/source/i18n/quant.cpp (revision 0)
@@ -0,0 +1,146 @@
+/*
+**********************************************************************
+* Copyright (C) 2001-2008, International Business Machines
+* Corporation and others. All Rights Reserved.
+**********************************************************************
+* Date Name Description
+* 07/26/01 aliu Creation.
+**********************************************************************
+*/
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_TRANSLITERATION
+
+#include "quant.h"
+#include "unicode/unistr.h"
+#include "util.h"
+
+U_NAMESPACE_BEGIN
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(Quantifier)
+
+Quantifier::Quantifier(UnicodeFunctor *adoptedMatcher,
+ uint32_t _minCount, uint32_t _maxCount) {
+ // assert(adopted != 0);
+ // assert(minCount <= maxCount);
+ matcher = adoptedMatcher;
+ this->minCount = _minCount;
+ this->maxCount = _maxCount;
+}
+
+Quantifier::Quantifier(const Quantifier& o) :
+ UnicodeFunctor(o),
+ UnicodeMatcher(o),
+ matcher(o.matcher->clone()),
+ minCount(o.minCount),
+ maxCount(o.maxCount)
+{
+}
+
+Quantifier::~Quantifier() {
+ delete matcher;
+}
+
+/**
+ * Implement UnicodeFunctor
+ */
+UnicodeFunctor* Quantifier::clone() const {
+ return new Quantifier(*this);
+}
+
+/**
+ * UnicodeFunctor API. Cast 'this' to a UnicodeMatcher* pointer
+ * and return the pointer.
+ */
+UnicodeMatcher* Quantifier::toMatcher() const {
+ return (UnicodeMatcher*) this;
+}
+
+UMatchDegree Quantifier::matches(const Replaceable& text,
+ int32_t& offset,
+ int32_t limit,
+ UBool incremental) {
+ int32_t start = offset;
+ uint32_t count = 0;
+ while (count < maxCount) {
+ int32_t pos = offset;
+ UMatchDegree m = matcher->toMatcher()->matches(text, offset, limit, incremental);
+ if (m == U_MATCH) {
+ ++count;
+ if (pos == offset) {
+ // If offset has not moved we have a zero-width match.
+ // Don't keep matching it infinitely.
+ break;
+ }
+ } else if (incremental && m == U_PARTIAL_MATCH) {
+ return U_PARTIAL_MATCH;
+ } else {
+ break;
+ }
+ }
+ if (incremental && offset == limit) {
+ return U_PARTIAL_MATCH;
+ }
+ if (count >= minCount) {
+ return U_MATCH;
+ }
+ offset = start;
+ return U_MISMATCH;
+}
+
+/**
+ * Implement UnicodeMatcher
+ */
+UnicodeString& Quantifier::toPattern(UnicodeString& result,
+ UBool escapeUnprintable) const {
+ result.truncate(0);
+ matcher->toMatcher()->toPattern(result, escapeUnprintable);
+ if (minCount == 0) {
+ if (maxCount == 1) {
+ return result.append((UChar)63); /*?*/
+ } else if (maxCount == MAX) {
+ return result.append((UChar)42); /***/
+ }
+ // else fall through
+ } else if (minCount == 1 && maxCount == MAX) {
+ return result.append((UChar)43); /*+*/
+ }
+ result.append((UChar)123); /*{*/
+ ICU_Utility::appendNumber(result, minCount);
+ result.append((UChar)44); /*,*/
+ if (maxCount != MAX) {
+ ICU_Utility::appendNumber(result, maxCount);
+ }
+ result.append((UChar)125); /*}*/
+ return result;
+}
+
+/**
+ * Implement UnicodeMatcher
+ */
+UBool Quantifier::matchesIndexValue(uint8_t v) const {
+ return (minCount == 0) || matcher->toMatcher()->matchesIndexValue(v);
+}
+
+/**
+ * Implement UnicodeMatcher
+ */
+void Quantifier::addMatchSetTo(UnicodeSet& toUnionTo) const {
+ if (maxCount > 0) {
+ matcher->toMatcher()->addMatchSetTo(toUnionTo);
+ }
+}
+
+/**
+ * Implement UnicodeFunctor
+ */
+void Quantifier::setData(const TransliterationRuleData* d) {
+ matcher->setData(d);
+}
+
+U_NAMESPACE_END
+
+#endif /* #if !UCONFIG_NO_TRANSLITERATION */
+
+//eof
Property changes on: icu46/source/i18n/quant.cpp
___________________________________________________________________
Added: svn:eol-style
+ LF
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