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diff --git a/deps/icu-small/source/common/normlzr.cpp b/deps/icu-small/source/common/normlzr.cpp
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+/*
+ *************************************************************************
+ * COPYRIGHT:
+ * Copyright (c) 1996-2012, International Business Machines Corporation and
+ * others. All Rights Reserved.
+ *************************************************************************
+ */
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_NORMALIZATION
+
+#include "unicode/uniset.h"
+#include "unicode/unistr.h"
+#include "unicode/chariter.h"
+#include "unicode/schriter.h"
+#include "unicode/uchriter.h"
+#include "unicode/normlzr.h"
+#include "unicode/utf16.h"
+#include "cmemory.h"
+#include "normalizer2impl.h"
+#include "uprops.h" // for uniset_getUnicode32Instance()
+
+U_NAMESPACE_BEGIN
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(Normalizer)
+
+//-------------------------------------------------------------------------
+// Constructors and other boilerplate
+//-------------------------------------------------------------------------
+
+Normalizer::Normalizer(const UnicodeString& str, UNormalizationMode mode) :
+ UObject(), fFilteredNorm2(NULL), fNorm2(NULL), fUMode(mode), fOptions(0),
+ text(new StringCharacterIterator(str)),
+ currentIndex(0), nextIndex(0),
+ buffer(), bufferPos(0)
+{
+ init();
+}
+
+Normalizer::Normalizer(const UChar *str, int32_t length, UNormalizationMode mode) :
+ UObject(), fFilteredNorm2(NULL), fNorm2(NULL), fUMode(mode), fOptions(0),
+ text(new UCharCharacterIterator(str, length)),
+ currentIndex(0), nextIndex(0),
+ buffer(), bufferPos(0)
+{
+ init();
+}
+
+Normalizer::Normalizer(const CharacterIterator& iter, UNormalizationMode mode) :
+ UObject(), fFilteredNorm2(NULL), fNorm2(NULL), fUMode(mode), fOptions(0),
+ text(iter.clone()),
+ currentIndex(0), nextIndex(0),
+ buffer(), bufferPos(0)
+{
+ init();
+}
+
+Normalizer::Normalizer(const Normalizer &copy) :
+ UObject(copy), fFilteredNorm2(NULL), fNorm2(NULL), fUMode(copy.fUMode), fOptions(copy.fOptions),
+ text(copy.text->clone()),
+ currentIndex(copy.currentIndex), nextIndex(copy.nextIndex),
+ buffer(copy.buffer), bufferPos(copy.bufferPos)
+{
+ init();
+}
+
+void
+Normalizer::init() {
+ UErrorCode errorCode=U_ZERO_ERROR;
+ fNorm2=Normalizer2Factory::getInstance(fUMode, errorCode);
+ if(fOptions&UNORM_UNICODE_3_2) {
+ delete fFilteredNorm2;
+ fNorm2=fFilteredNorm2=
+ new FilteredNormalizer2(*fNorm2, *uniset_getUnicode32Instance(errorCode));
+ }
+ if(U_FAILURE(errorCode)) {
+ errorCode=U_ZERO_ERROR;
+ fNorm2=Normalizer2Factory::getNoopInstance(errorCode);
+ }
+}
+
+Normalizer::~Normalizer()
+{
+ delete fFilteredNorm2;
+ delete text;
+}
+
+Normalizer*
+Normalizer::clone() const
+{
+ return new Normalizer(*this);
+}
+
+/**
+ * Generates a hash code for this iterator.
+ */
+int32_t Normalizer::hashCode() const
+{
+ return text->hashCode() + fUMode + fOptions + buffer.hashCode() + bufferPos + currentIndex + nextIndex;
+}
+
+UBool Normalizer::operator==(const Normalizer& that) const
+{
+ return
+ this==&that ||
+ (fUMode==that.fUMode &&
+ fOptions==that.fOptions &&
+ *text==*that.text &&
+ buffer==that.buffer &&
+ bufferPos==that.bufferPos &&
+ nextIndex==that.nextIndex);
+}
+
+//-------------------------------------------------------------------------
+// Static utility methods
+//-------------------------------------------------------------------------
+
+void U_EXPORT2
+Normalizer::normalize(const UnicodeString& source,
+ UNormalizationMode mode, int32_t options,
+ UnicodeString& result,
+ UErrorCode &status) {
+ if(source.isBogus() || U_FAILURE(status)) {
+ result.setToBogus();
+ if(U_SUCCESS(status)) {
+ status=U_ILLEGAL_ARGUMENT_ERROR;
+ }
+ } else {
+ UnicodeString localDest;
+ UnicodeString *dest;
+
+ if(&source!=&result) {
+ dest=&result;
+ } else {
+ // the source and result strings are the same object, use a temporary one
+ dest=&localDest;
+ }
+ const Normalizer2 *n2=Normalizer2Factory::getInstance(mode, status);
+ if(U_SUCCESS(status)) {
+ if(options&UNORM_UNICODE_3_2) {
+ FilteredNormalizer2(*n2, *uniset_getUnicode32Instance(status)).
+ normalize(source, *dest, status);
+ } else {
+ n2->normalize(source, *dest, status);
+ }
+ }
+ if(dest==&localDest && U_SUCCESS(status)) {
+ result=*dest;
+ }
+ }
+}
+
+void U_EXPORT2
+Normalizer::compose(const UnicodeString& source,
+ UBool compat, int32_t options,
+ UnicodeString& result,
+ UErrorCode &status) {
+ normalize(source, compat ? UNORM_NFKC : UNORM_NFC, options, result, status);
+}
+
+void U_EXPORT2
+Normalizer::decompose(const UnicodeString& source,
+ UBool compat, int32_t options,
+ UnicodeString& result,
+ UErrorCode &status) {
+ normalize(source, compat ? UNORM_NFKD : UNORM_NFD, options, result, status);
+}
+
+UNormalizationCheckResult
+Normalizer::quickCheck(const UnicodeString& source,
+ UNormalizationMode mode, int32_t options,
+ UErrorCode &status) {
+ const Normalizer2 *n2=Normalizer2Factory::getInstance(mode, status);
+ if(U_SUCCESS(status)) {
+ if(options&UNORM_UNICODE_3_2) {
+ return FilteredNormalizer2(*n2, *uniset_getUnicode32Instance(status)).
+ quickCheck(source, status);
+ } else {
+ return n2->quickCheck(source, status);
+ }
+ } else {
+ return UNORM_MAYBE;
+ }
+}
+
+UBool
+Normalizer::isNormalized(const UnicodeString& source,
+ UNormalizationMode mode, int32_t options,
+ UErrorCode &status) {
+ const Normalizer2 *n2=Normalizer2Factory::getInstance(mode, status);
+ if(U_SUCCESS(status)) {
+ if(options&UNORM_UNICODE_3_2) {
+ return FilteredNormalizer2(*n2, *uniset_getUnicode32Instance(status)).
+ isNormalized(source, status);
+ } else {
+ return n2->isNormalized(source, status);
+ }
+ } else {
+ return FALSE;
+ }
+}
+
+UnicodeString & U_EXPORT2
+Normalizer::concatenate(const UnicodeString &left, const UnicodeString &right,
+ UnicodeString &result,
+ UNormalizationMode mode, int32_t options,
+ UErrorCode &errorCode) {
+ if(left.isBogus() || right.isBogus() || U_FAILURE(errorCode)) {
+ result.setToBogus();
+ if(U_SUCCESS(errorCode)) {
+ errorCode=U_ILLEGAL_ARGUMENT_ERROR;
+ }
+ } else {
+ UnicodeString localDest;
+ UnicodeString *dest;
+
+ if(&right!=&result) {
+ dest=&result;
+ } else {
+ // the right and result strings are the same object, use a temporary one
+ dest=&localDest;
+ }
+ *dest=left;
+ const Normalizer2 *n2=Normalizer2Factory::getInstance(mode, errorCode);
+ if(U_SUCCESS(errorCode)) {
+ if(options&UNORM_UNICODE_3_2) {
+ FilteredNormalizer2(*n2, *uniset_getUnicode32Instance(errorCode)).
+ append(*dest, right, errorCode);
+ } else {
+ n2->append(*dest, right, errorCode);
+ }
+ }
+ if(dest==&localDest && U_SUCCESS(errorCode)) {
+ result=*dest;
+ }
+ }
+ return result;
+}
+
+//-------------------------------------------------------------------------
+// Iteration API
+//-------------------------------------------------------------------------
+
+/**
+ * Return the current character in the normalized text.
+ */
+UChar32 Normalizer::current() {
+ if(bufferPos<buffer.length() || nextNormalize()) {
+ return buffer.char32At(bufferPos);
+ } else {
+ return DONE;
+ }
+}
+
+/**
+ * Return the next character in the normalized text and advance
+ * the iteration position by one. If the end
+ * of the text has already been reached, {@link #DONE} is returned.
+ */
+UChar32 Normalizer::next() {
+ if(bufferPos<buffer.length() || nextNormalize()) {
+ UChar32 c=buffer.char32At(bufferPos);
+ bufferPos+=U16_LENGTH(c);
+ return c;
+ } else {
+ return DONE;
+ }
+}
+
+/**
+ * Return the previous character in the normalized text and decrement
+ * the iteration position by one. If the beginning
+ * of the text has already been reached, {@link #DONE} is returned.
+ */
+UChar32 Normalizer::previous() {
+ if(bufferPos>0 || previousNormalize()) {
+ UChar32 c=buffer.char32At(bufferPos-1);
+ bufferPos-=U16_LENGTH(c);
+ return c;
+ } else {
+ return DONE;
+ }
+}
+
+void Normalizer::reset() {
+ currentIndex=nextIndex=text->setToStart();
+ clearBuffer();
+}
+
+void
+Normalizer::setIndexOnly(int32_t index) {
+ text->setIndex(index); // pins index
+ currentIndex=nextIndex=text->getIndex();
+ clearBuffer();
+}
+
+/**
+ * Return the first character in the normalized text. This resets
+ * the <tt>Normalizer's</tt> position to the beginning of the text.
+ */
+UChar32 Normalizer::first() {
+ reset();
+ return next();
+}
+
+/**
+ * Return the last character in the normalized text. This resets
+ * the <tt>Normalizer's</tt> position to be just before the
+ * the input text corresponding to that normalized character.
+ */
+UChar32 Normalizer::last() {
+ currentIndex=nextIndex=text->setToEnd();
+ clearBuffer();
+ return previous();
+}
+
+/**
+ * Retrieve the current iteration position in the input text that is
+ * being normalized. This method is useful in applications such as
+ * searching, where you need to be able to determine the position in
+ * the input text that corresponds to a given normalized output character.
+ * <p>
+ * <b>Note:</b> This method sets the position in the <em>input</em>, while
+ * {@link #next} and {@link #previous} iterate through characters in the
+ * <em>output</em>. This means that there is not necessarily a one-to-one
+ * correspondence between characters returned by <tt>next</tt> and
+ * <tt>previous</tt> and the indices passed to and returned from
+ * <tt>setIndex</tt> and {@link #getIndex}.
+ *
+ */
+int32_t Normalizer::getIndex() const {
+ if(bufferPos<buffer.length()) {
+ return currentIndex;
+ } else {
+ return nextIndex;
+ }
+}
+
+/**
+ * Retrieve the index of the start of the input text. This is the begin index
+ * of the <tt>CharacterIterator</tt> or the start (i.e. 0) of the <tt>String</tt>
+ * over which this <tt>Normalizer</tt> is iterating
+ */
+int32_t Normalizer::startIndex() const {
+ return text->startIndex();
+}
+
+/**
+ * Retrieve the index of the end of the input text. This is the end index
+ * of the <tt>CharacterIterator</tt> or the length of the <tt>String</tt>
+ * over which this <tt>Normalizer</tt> is iterating
+ */
+int32_t Normalizer::endIndex() const {
+ return text->endIndex();
+}
+
+//-------------------------------------------------------------------------
+// Property access methods
+//-------------------------------------------------------------------------
+
+void
+Normalizer::setMode(UNormalizationMode newMode)
+{
+ fUMode = newMode;
+ init();
+}
+
+UNormalizationMode
+Normalizer::getUMode() const
+{
+ return fUMode;
+}
+
+void
+Normalizer::setOption(int32_t option,
+ UBool value)
+{
+ if (value) {
+ fOptions |= option;
+ } else {
+ fOptions &= (~option);
+ }
+ init();
+}
+
+UBool
+Normalizer::getOption(int32_t option) const
+{
+ return (fOptions & option) != 0;
+}
+
+/**
+ * Set the input text over which this <tt>Normalizer</tt> will iterate.
+ * The iteration position is set to the beginning of the input text.
+ */
+void
+Normalizer::setText(const UnicodeString& newText,
+ UErrorCode &status)
+{
+ if (U_FAILURE(status)) {
+ return;
+ }
+ CharacterIterator *newIter = new StringCharacterIterator(newText);
+ if (newIter == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ delete text;
+ text = newIter;
+ reset();
+}
+
+/**
+ * Set the input text over which this <tt>Normalizer</tt> will iterate.
+ * The iteration position is set to the beginning of the string.
+ */
+void
+Normalizer::setText(const CharacterIterator& newText,
+ UErrorCode &status)
+{
+ if (U_FAILURE(status)) {
+ return;
+ }
+ CharacterIterator *newIter = newText.clone();
+ if (newIter == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ delete text;
+ text = newIter;
+ reset();
+}
+
+void
+Normalizer::setText(const UChar* newText,
+ int32_t length,
+ UErrorCode &status)
+{
+ if (U_FAILURE(status)) {
+ return;
+ }
+ CharacterIterator *newIter = new UCharCharacterIterator(newText, length);
+ if (newIter == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ delete text;
+ text = newIter;
+ reset();
+}
+
+/**
+ * Copies the text under iteration into the UnicodeString referred to by "result".
+ * @param result Receives a copy of the text under iteration.
+ */
+void
+Normalizer::getText(UnicodeString& result)
+{
+ text->getText(result);
+}
+
+//-------------------------------------------------------------------------
+// Private utility methods
+//-------------------------------------------------------------------------
+
+void Normalizer::clearBuffer() {
+ buffer.remove();
+ bufferPos=0;
+}
+
+UBool
+Normalizer::nextNormalize() {
+ clearBuffer();
+ currentIndex=nextIndex;
+ text->setIndex(nextIndex);
+ if(!text->hasNext()) {
+ return FALSE;
+ }
+ // Skip at least one character so we make progress.
+ UnicodeString segment(text->next32PostInc());
+ while(text->hasNext()) {
+ UChar32 c;
+ if(fNorm2->hasBoundaryBefore(c=text->next32PostInc())) {
+ text->move32(-1, CharacterIterator::kCurrent);
+ break;
+ }
+ segment.append(c);
+ }
+ nextIndex=text->getIndex();
+ UErrorCode errorCode=U_ZERO_ERROR;
+ fNorm2->normalize(segment, buffer, errorCode);
+ return U_SUCCESS(errorCode) && !buffer.isEmpty();
+}
+
+UBool
+Normalizer::previousNormalize() {
+ clearBuffer();
+ nextIndex=currentIndex;
+ text->setIndex(currentIndex);
+ if(!text->hasPrevious()) {
+ return FALSE;
+ }
+ UnicodeString segment;
+ while(text->hasPrevious()) {
+ UChar32 c=text->previous32();
+ segment.insert(0, c);
+ if(fNorm2->hasBoundaryBefore(c)) {
+ break;
+ }
+ }
+ currentIndex=text->getIndex();
+ UErrorCode errorCode=U_ZERO_ERROR;
+ fNorm2->normalize(segment, buffer, errorCode);
+ bufferPos=buffer.length();
+ return U_SUCCESS(errorCode) && !buffer.isEmpty();
+}
+
+U_NAMESPACE_END
+
+#endif /* #if !UCONFIG_NO_NORMALIZATION */
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