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620 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <breakiterator_unicode.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <localedata.hxx>
#include <i18nlangtag/languagetag.hxx>
#include <i18nlangtag/languagetagicu.hxx>
#include <unicode/uchar.h>
#include <unicode/locid.h>
#include <unicode/rbbi.h>
#include <unicode/udata.h>
#include <rtl/strbuf.hxx>
#include <rtl/ustring.hxx>
#include <com/sun/star/i18n/BreakType.hpp>
#include <com/sun/star/i18n/CharacterIteratorMode.hpp>
#include <com/sun/star/i18n/WordType.hpp>
U_CDECL_BEGIN
extern const char OpenOffice_dat[];
U_CDECL_END
using namespace ::com::sun::star;
using namespace ::com::sun::star::i18n;
using namespace ::com::sun::star::lang;
namespace i18npool {
// Cache map of breakiterators, stores state information so has to be
// thread_local.
thread_local static BreakIterator_Unicode::BIMap theBIMap;
BreakIterator_Unicode::BreakIterator_Unicode()
: cBreakIterator( "com.sun.star.i18n.BreakIterator_Unicode" ) // implementation name
, lineRule( "line" )
, icuBI( nullptr )
{
}
BreakIterator_Unicode::~BreakIterator_Unicode()
{
}
namespace {
/*
Wrapper class to provide public access to the icu::RuleBasedBreakIterator's
setbreakType method.
*/
class OOoRuleBasedBreakIterator : public icu::RuleBasedBreakIterator
{
public:
#if (U_ICU_VERSION_MAJOR_NUM < 58)
// icu::RuleBasedBreakIterator::setBreakType() is private as of ICU 58.
void publicSetBreakType(int32_t type)
{
setBreakType(type);
};
#endif
OOoRuleBasedBreakIterator(UDataMemory* image,
UErrorCode &status)
: icu::RuleBasedBreakIterator(image, status)
{ };
};
}
// loading ICU breakiterator on demand.
void BreakIterator_Unicode::loadICUBreakIterator(const css::lang::Locale& rLocale,
sal_Int16 rBreakType, sal_Int16 nWordType, const char *rule, const OUString& rText)
{
bool bNewBreak = false;
UErrorCode status = U_ZERO_ERROR;
sal_Int16 breakType = 0;
switch (rBreakType) {
case LOAD_CHARACTER_BREAKITERATOR: icuBI=&character; breakType = 3; break;
case LOAD_WORD_BREAKITERATOR:
assert (nWordType >= 0 && nWordType<= WordType::WORD_COUNT);
icuBI=&words[nWordType];
switch (nWordType) {
case WordType::ANY_WORD: break; // odd but previous behavior
case WordType::ANYWORD_IGNOREWHITESPACES:
breakType = 0; rule = "edit_word"; break;
case WordType::DICTIONARY_WORD:
breakType = 1; rule = "dict_word"; break;
default:
case WordType::WORD_COUNT:
breakType = 2; rule = "count_word"; break;
}
break;
case LOAD_SENTENCE_BREAKITERATOR: icuBI=&sentence; breakType = 5; break;
case LOAD_LINE_BREAKITERATOR: icuBI=&line; breakType = 4; break;
}
// Using the cache map prevents accessing the file system for each
// udata_open() where ICU tries first files then data objects. And that for
// two fallbacks worst case... for each new allocated EditEngine, layout
// cell, ... *ouch* Also non-rule locale based iterators can be mapped.
// This also speeds up loading iterators for alternating or generally more
// than one language/locale in that iterators are not constructed and
// destroyed en masse.
// Four possible keys, locale rule based with break type, locale rule based
// only, rule based only, locale based with break type. A fifth global key
// for the initial lookup.
// Multiple global keys may map to identical value data.
// All enums used here should be in the range 0..9 so assert that and avoid
// expensive numeric conversion in append() for faster construction of the
// always used global key.
assert( 0 <= breakType && breakType <= 9 && 0 <= rBreakType && rBreakType <= 9 && 0 <= nWordType && nWordType <= 9);
const OString aLangtagStr( LanguageTag::convertToBcp47( rLocale).toUtf8());
OStringBuffer aKeyBuf(64);
aKeyBuf.append( aLangtagStr).append(';');
if (rule)
aKeyBuf.append(rule);
aKeyBuf.append(';').append( static_cast<char>('0'+breakType)).append(';').
append( static_cast<char>('0'+rBreakType)).append(';').append( static_cast<char>('0'+nWordType));
// langtag;rule;breakType;rBreakType;nWordType
const OString aBIMapGlobalKey( aKeyBuf.makeStringAndClear());
if (icuBI->maBIMapKey != aBIMapGlobalKey || !icuBI->mpValue || !icuBI->mpValue->mpBreakIterator)
{
auto aMapIt( theBIMap.find( aBIMapGlobalKey));
bool bInMap = (aMapIt != theBIMap.end());
if (bInMap)
icuBI->mpValue = aMapIt->second;
else
icuBI->mpValue.reset();
if (!bInMap && rule) do {
const uno::Sequence< OUString > breakRules = LocaleDataImpl::get()->getBreakIteratorRules(rLocale);
status = U_ZERO_ERROR;
udata_setAppData("OpenOffice", OpenOffice_dat, &status);
if ( !U_SUCCESS(status) ) throw uno::RuntimeException();
std::shared_ptr<OOoRuleBasedBreakIterator> rbi;
if (breakRules.getLength() > breakType && !breakRules[breakType].isEmpty())
{
// langtag;rule;breakType
const OString aBIMapRuleTypeKey( aLangtagStr + ";" + rule + ";" + OString::number(breakType));
aMapIt = theBIMap.find( aBIMapRuleTypeKey);
bInMap = (aMapIt != theBIMap.end());
if (bInMap)
{
icuBI->mpValue = aMapIt->second;
icuBI->maBIMapKey = aBIMapGlobalKey;
theBIMap.insert( std::make_pair( aBIMapGlobalKey, icuBI->mpValue));
break; // do
}
rbi = std::make_shared<OOoRuleBasedBreakIterator>(udata_open("OpenOffice", "brk",
OUStringToOString(breakRules[breakType], RTL_TEXTENCODING_ASCII_US).getStr(), &status), status);
if (U_SUCCESS(status))
{
icuBI->mpValue = std::make_shared<BI_ValueData>();
icuBI->mpValue->mpBreakIterator = rbi;
theBIMap.insert( std::make_pair( aBIMapRuleTypeKey, icuBI->mpValue));
}
else
{
rbi.reset();
}
}
//use icu's breakiterator for Thai, Tibetan and Dzongkha
else if (rLocale.Language != "th" && rLocale.Language != "lo" && rLocale.Language != "bo" && rLocale.Language != "dz" && rLocale.Language != "km")
{
// language;rule (not langtag, unless we'd actually load such)
OString aLanguage( LanguageTag( rLocale).getLanguage().toUtf8());
const OString aBIMapRuleKey( aLanguage + ";" + rule);
aMapIt = theBIMap.find( aBIMapRuleKey);
bInMap = (aMapIt != theBIMap.end());
if (bInMap)
{
icuBI->mpValue = aMapIt->second;
icuBI->maBIMapKey = aBIMapGlobalKey;
theBIMap.insert( std::make_pair( aBIMapGlobalKey, icuBI->mpValue));
break; // do
}
status = U_ZERO_ERROR;
OString aUDName = rtl::OStringView(rule) + "_" + aLanguage;
UDataMemory* pUData = udata_open("OpenOffice", "brk", aUDName.getStr(), &status);
if( U_SUCCESS(status) )
rbi = std::make_shared<OOoRuleBasedBreakIterator>( pUData, status);
if ( U_SUCCESS(status) )
{
icuBI->mpValue = std::make_shared<BI_ValueData>();
icuBI->mpValue->mpBreakIterator = rbi;
theBIMap.insert( std::make_pair( aBIMapRuleKey, icuBI->mpValue));
}
else
{
rbi.reset();
// ;rule (only)
const OString aBIMapRuleOnlyKey( OStringLiteral(";") + rule);
aMapIt = theBIMap.find( aBIMapRuleOnlyKey);
bInMap = (aMapIt != theBIMap.end());
if (bInMap)
{
icuBI->mpValue = aMapIt->second;
icuBI->maBIMapKey = aBIMapGlobalKey;
theBIMap.insert( std::make_pair( aBIMapGlobalKey, icuBI->mpValue));
break; // do
}
status = U_ZERO_ERROR;
pUData = udata_open("OpenOffice", "brk", rule, &status);
if( U_SUCCESS(status) )
rbi = std::make_shared<OOoRuleBasedBreakIterator>( pUData, status);
if ( U_SUCCESS(status) )
{
icuBI->mpValue = std::make_shared<BI_ValueData>();
icuBI->mpValue->mpBreakIterator = rbi;
theBIMap.insert( std::make_pair( aBIMapRuleOnlyKey, icuBI->mpValue));
}
else
{
rbi.reset();
}
}
}
if (rbi) {
#if (U_ICU_VERSION_MAJOR_NUM < 58)
// ICU 58 made RuleBasedBreakIterator::setBreakType() private
// instead of protected, so the old workaround of
// https://ssl.icu-project.org/trac/ticket/5498
// doesn't work anymore. However, they also claim to have fixed
// the cause that an initial fBreakType==-1 would lead to an
// endless loop under some circumstances.
// Let's see ...
switch (rBreakType) {
case LOAD_CHARACTER_BREAKITERATOR: rbi->publicSetBreakType(UBRK_CHARACTER); break;
case LOAD_WORD_BREAKITERATOR: rbi->publicSetBreakType(UBRK_WORD); break;
case LOAD_SENTENCE_BREAKITERATOR: rbi->publicSetBreakType(UBRK_SENTENCE); break;
case LOAD_LINE_BREAKITERATOR: rbi->publicSetBreakType(UBRK_LINE); break;
}
#endif
}
} while (false);
if (!icuBI->mpValue || !icuBI->mpValue->mpBreakIterator) do {<--- First condition
// langtag;;;rBreakType (empty rule; empty breakType)
const OString aBIMapLocaleTypeKey( aLangtagStr + ";;;" + OString::number(rBreakType));
aMapIt = theBIMap.find( aBIMapLocaleTypeKey);
bInMap = (aMapIt != theBIMap.end());
if (bInMap)
{
icuBI->mpValue = aMapIt->second;
icuBI->maBIMapKey = aBIMapGlobalKey;
theBIMap.insert( std::make_pair( aBIMapGlobalKey, icuBI->mpValue));
break; // do
}
icu::Locale icuLocale( LanguageTagIcu::getIcuLocale( LanguageTag( rLocale)));
std::shared_ptr< icu::BreakIterator > pBI;
status = U_ZERO_ERROR;
switch (rBreakType) {
case LOAD_CHARACTER_BREAKITERATOR:
pBI.reset( icu::BreakIterator::createCharacterInstance(icuLocale, status) );
break;
case LOAD_WORD_BREAKITERATOR:
pBI.reset( icu::BreakIterator::createWordInstance(icuLocale, status) );
break;
case LOAD_SENTENCE_BREAKITERATOR:
pBI.reset( icu::BreakIterator::createSentenceInstance(icuLocale, status) );
break;
case LOAD_LINE_BREAKITERATOR:
pBI.reset( icu::BreakIterator::createLineInstance(icuLocale, status) );
break;
}
if ( !U_SUCCESS(status) || !pBI ) {
throw uno::RuntimeException();
}
icuBI->mpValue = std::make_shared<BI_ValueData>();
icuBI->mpValue->mpBreakIterator = pBI;
theBIMap.insert( std::make_pair( aBIMapLocaleTypeKey, icuBI->mpValue));
} while (false);
if (!icuBI->mpValue || !icuBI->mpValue->mpBreakIterator) {<--- Second condition
throw uno::RuntimeException();
}
icuBI->maBIMapKey = aBIMapGlobalKey;
if (!bInMap)
theBIMap.insert( std::make_pair( aBIMapGlobalKey, icuBI->mpValue));
bNewBreak=true;
}
if (!(bNewBreak || icuBI->mpValue->maICUText.pData != rText.pData))
return;
const UChar *pText = reinterpret_cast<const UChar *>(rText.getStr());
status = U_ZERO_ERROR;
icuBI->mpValue->mpUt = utext_openUChars(icuBI->mpValue->mpUt, pText, rText.getLength(), &status);
if (!U_SUCCESS(status))
throw uno::RuntimeException();
icuBI->mpValue->mpBreakIterator->setText(icuBI->mpValue->mpUt, status);
if (!U_SUCCESS(status))
throw uno::RuntimeException();
icuBI->mpValue->maICUText = rText;
}
sal_Int32 SAL_CALL BreakIterator_Unicode::nextCharacters( const OUString& Text,
sal_Int32 nStartPos, const lang::Locale &rLocale,
sal_Int16 nCharacterIteratorMode, sal_Int32 nCount, sal_Int32& nDone )
{
if (nCharacterIteratorMode == CharacterIteratorMode::SKIPCELL ) { // for CELL mode
loadICUBreakIterator(rLocale, LOAD_CHARACTER_BREAKITERATOR, 0, "char", Text);
icu::BreakIterator* pBI = character.mpValue->mpBreakIterator.get();
for (nDone = 0; nDone < nCount; nDone++) {
nStartPos = pBI->following(nStartPos);
if (nStartPos == icu::BreakIterator::DONE)
return Text.getLength();
}
} else { // for CHARACTER mode
for (nDone = 0; nDone < nCount && nStartPos < Text.getLength(); nDone++)
Text.iterateCodePoints(&nStartPos);
}
return nStartPos;
}
sal_Int32 SAL_CALL BreakIterator_Unicode::previousCharacters( const OUString& Text,
sal_Int32 nStartPos, const lang::Locale& rLocale,
sal_Int16 nCharacterIteratorMode, sal_Int32 nCount, sal_Int32& nDone )
{
if (nCharacterIteratorMode == CharacterIteratorMode::SKIPCELL ) { // for CELL mode
loadICUBreakIterator(rLocale, LOAD_CHARACTER_BREAKITERATOR, 0, "char", Text);
icu::BreakIterator* pBI = character.mpValue->mpBreakIterator.get();
for (nDone = 0; nDone < nCount; nDone++) {
nStartPos = pBI->preceding(nStartPos);
if (nStartPos == icu::BreakIterator::DONE)
return 0;
}
} else { // for BS to delete one char and CHARACTER mode.
for (nDone = 0; nDone < nCount && nStartPos > 0; nDone++)
Text.iterateCodePoints(&nStartPos, -1);
}
return nStartPos;
}
Boundary SAL_CALL BreakIterator_Unicode::nextWord( const OUString& Text, sal_Int32 nStartPos,
const lang::Locale& rLocale, sal_Int16 rWordType )
{
loadICUBreakIterator(rLocale, LOAD_WORD_BREAKITERATOR, rWordType, nullptr, Text);
Boundary rv;
rv.startPos = icuBI->mpValue->mpBreakIterator->following(nStartPos);
if( rv.startPos >= Text.getLength() || rv.startPos == icu::BreakIterator::DONE )
rv.endPos = result.startPos;
else {
if ( (rWordType == WordType::ANYWORD_IGNOREWHITESPACES ||
rWordType == WordType::DICTIONARY_WORD ) &&
u_isWhitespace(Text.iterateCodePoints(&rv.startPos, 0)) )
rv.startPos = icuBI->mpValue->mpBreakIterator->following(rv.startPos);
rv.endPos = icuBI->mpValue->mpBreakIterator->following(rv.startPos);
if(rv.endPos == icu::BreakIterator::DONE)
rv.endPos = rv.startPos;
}
return rv;
}
Boundary SAL_CALL BreakIterator_Unicode::previousWord(const OUString& Text, sal_Int32 nStartPos,
const lang::Locale& rLocale, sal_Int16 rWordType)
{
loadICUBreakIterator(rLocale, LOAD_WORD_BREAKITERATOR, rWordType, nullptr, Text);
Boundary rv;
rv.startPos = icuBI->mpValue->mpBreakIterator->preceding(nStartPos);
if( rv.startPos < 0)
rv.endPos = rv.startPos;
else {
if ( (rWordType == WordType::ANYWORD_IGNOREWHITESPACES ||
rWordType == WordType::DICTIONARY_WORD) &&
u_isWhitespace(Text.iterateCodePoints(&rv.startPos, 0)) )
rv.startPos = icuBI->mpValue->mpBreakIterator->preceding(rv.startPos);
rv.endPos = icuBI->mpValue->mpBreakIterator->following(rv.startPos);
if(rv.endPos == icu::BreakIterator::DONE)
rv.endPos = rv.startPos;
}
return rv;
}
Boundary SAL_CALL BreakIterator_Unicode::getWordBoundary( const OUString& Text, sal_Int32 nPos, const lang::Locale& rLocale,
sal_Int16 rWordType, sal_Bool bDirection )
{
loadICUBreakIterator(rLocale, LOAD_WORD_BREAKITERATOR, rWordType, nullptr, Text);
sal_Int32 len = Text.getLength();
Boundary rv;
if(icuBI->mpValue->mpBreakIterator->isBoundary(nPos)) {
rv.startPos = rv.endPos = nPos;
if((bDirection || nPos == 0) && nPos < len) //forward
rv.endPos = icuBI->mpValue->mpBreakIterator->following(nPos);
else
rv.startPos = icuBI->mpValue->mpBreakIterator->preceding(nPos);
} else {
if(nPos <= 0) {
rv.startPos = 0;
rv.endPos = len ? icuBI->mpValue->mpBreakIterator->following(sal_Int32(0)) : 0;
} else if(nPos >= len) {
rv.startPos = icuBI->mpValue->mpBreakIterator->preceding(len);
rv.endPos = len;
} else {
rv.startPos = icuBI->mpValue->mpBreakIterator->preceding(nPos);
rv.endPos = icuBI->mpValue->mpBreakIterator->following(nPos);
}
}
if (rv.startPos == icu::BreakIterator::DONE)
rv.startPos = rv.endPos;
else if (rv.endPos == icu::BreakIterator::DONE)
rv.endPos = rv.startPos;
return rv;
}
sal_Int32 SAL_CALL BreakIterator_Unicode::beginOfSentence( const OUString& Text, sal_Int32 nStartPos,
const lang::Locale &rLocale )
{
loadICUBreakIterator(rLocale, LOAD_SENTENCE_BREAKITERATOR, 0, "sent", Text);
sal_Int32 len = Text.getLength();
if (len > 0 && nStartPos == len)
Text.iterateCodePoints(&nStartPos, -1); // issue #i27703# treat end position as part of last sentence
if (!sentence.mpValue->mpBreakIterator->isBoundary(nStartPos))
nStartPos = sentence.mpValue->mpBreakIterator->preceding(nStartPos);
// skip preceding space.
sal_uInt32 ch = Text.iterateCodePoints(&nStartPos);
while (nStartPos < len && u_isWhitespace(ch)) ch = Text.iterateCodePoints(&nStartPos);
Text.iterateCodePoints(&nStartPos, -1);
return nStartPos;
}
sal_Int32 SAL_CALL BreakIterator_Unicode::endOfSentence( const OUString& Text, sal_Int32 nStartPos,
const lang::Locale &rLocale )
{
loadICUBreakIterator(rLocale, LOAD_SENTENCE_BREAKITERATOR, 0, "sent", Text);
sal_Int32 len = Text.getLength();
if (len > 0 && nStartPos == len)
Text.iterateCodePoints(&nStartPos, -1); // issue #i27703# treat end position as part of last sentence
nStartPos = sentence.mpValue->mpBreakIterator->following(nStartPos);
sal_Int32 nPos=nStartPos;
while (nPos > 0 && u_isWhitespace(Text.iterateCodePoints(&nPos, -1))) nStartPos=nPos;
return nStartPos;
}
LineBreakResults SAL_CALL BreakIterator_Unicode::getLineBreak(
const OUString& Text, sal_Int32 nStartPos,
const lang::Locale& rLocale, sal_Int32 nMinBreakPos,
const LineBreakHyphenationOptions& hOptions,
const LineBreakUserOptions& /*rOptions*/ )
{
LineBreakResults lbr;
if (nStartPos >= Text.getLength()) {
lbr.breakIndex = Text.getLength();
lbr.breakType = BreakType::WORDBOUNDARY;
return lbr;
}
loadICUBreakIterator(rLocale, LOAD_LINE_BREAKITERATOR, 0, lineRule, Text);
icu::BreakIterator* pLineBI = line.mpValue->mpBreakIterator.get();
bool GlueSpace=true;
while (GlueSpace) {
if (pLineBI->preceding(nStartPos + 1) == nStartPos) { //Line boundary break
lbr.breakIndex = nStartPos;
lbr.breakType = BreakType::WORDBOUNDARY;
} else if (hOptions.rHyphenator.is()) { //Hyphenation break
sal_Int32 boundary_with_punctuation = (pLineBI->next() != icu::BreakIterator::DONE) ? pLineBI->current() : 0;
pLineBI->preceding(nStartPos + 1); // reset to check correct hyphenation of "word-word"
sal_Int32 nStartPosWordEnd = nStartPos;
while (pLineBI->current() < nStartPosWordEnd && u_ispunct(static_cast<sal_uInt32>(Text[nStartPosWordEnd]))) // starting punctuation
nStartPosWordEnd --;
Boundary wBoundary = getWordBoundary( Text, nStartPosWordEnd, rLocale,
WordType::DICTIONARY_WORD, false);
nStartPosWordEnd = wBoundary.endPos;
while (nStartPosWordEnd < Text.getLength() && (u_ispunct(static_cast<sal_uInt32>(Text[nStartPosWordEnd])))) // ending punctuation
nStartPosWordEnd ++;
nStartPosWordEnd = nStartPosWordEnd - wBoundary.endPos;
if (hOptions.hyphenIndex - wBoundary.startPos < nStartPosWordEnd) nStartPosWordEnd = hOptions.hyphenIndex - wBoundary.startPos;
#define SPACE 0x0020
while (boundary_with_punctuation > wBoundary.endPos && Text[--boundary_with_punctuation] == SPACE);
uno::Reference< linguistic2::XHyphenatedWord > aHyphenatedWord = hOptions.rHyphenator->hyphenate(Text.copy(wBoundary.startPos,
wBoundary.endPos - wBoundary.startPos), rLocale,
static_cast<sal_Int16>(hOptions.hyphenIndex - wBoundary.startPos - ((hOptions.hyphenIndex == wBoundary.endPos)? nStartPosWordEnd : 0)), hOptions.aHyphenationOptions);
if (aHyphenatedWord.is()) {
lbr.rHyphenatedWord = aHyphenatedWord;
if(wBoundary.startPos + aHyphenatedWord->getHyphenationPos() + 1 < nMinBreakPos )
lbr.breakIndex = -1;
else
lbr.breakIndex = wBoundary.startPos; //aHyphenatedWord->getHyphenationPos();
lbr.breakType = BreakType::HYPHENATION;
// check not optimal hyphenation of "word-word" (word with hyphens)
if (lbr.breakIndex > -1 && wBoundary.startPos + aHyphenatedWord->getHyphenationPos() < pLineBI->current()) {
lbr.breakIndex = pLineBI->current();
lbr.breakType = BreakType::WORDBOUNDARY;
}
} else {
lbr.breakIndex = pLineBI->preceding(nStartPos);
lbr.breakType = BreakType::WORDBOUNDARY;
}
} else { //word boundary break
lbr.breakIndex = pLineBI->preceding(nStartPos);
lbr.breakType = BreakType::WORDBOUNDARY;
// Special case for Slash U+002F SOLIDUS in URI and path names.
// TR14 defines that as SY: Symbols Allowing Break After (A).
// This is unwanted in paths, see also i#17155
if (lbr.breakIndex > 0 && Text[lbr.breakIndex-1] == '/')
{
// Look backward and take any whitespace before as a break
// opportunity. This also glues something like "w/o".
// Avoid an overly long path and break it as was indicated.
// Overly long here is arbitrarily defined.
const sal_Int32 nOverlyLong = 66;
sal_Int32 nPos = lbr.breakIndex - 1;
while (nPos > 0 && lbr.breakIndex - nPos < nOverlyLong)
{
if (u_isWhitespace(Text.iterateCodePoints( &nPos, -1)))
{
lbr.breakIndex = nPos + 1;
break;
}
}
}
}
#define WJ 0x2060 // Word Joiner
GlueSpace=false;
if (lbr.breakType == BreakType::WORDBOUNDARY) {
nStartPos = lbr.breakIndex;
if (nStartPos >= 0 && Text[nStartPos--] == WJ)
GlueSpace=true;
while (nStartPos >= 0 &&
(u_isWhitespace(Text.iterateCodePoints(&nStartPos, 0)) || Text[nStartPos] == WJ)) {
if (Text[nStartPos--] == WJ)
GlueSpace=true;
}
if (GlueSpace && nStartPos < 0) {
lbr.breakIndex = 0;
break;
}
}
}
return lbr;
}
OUString SAL_CALL
BreakIterator_Unicode::getImplementationName()
{
return OUString::createFromAscii(cBreakIterator);
}
sal_Bool SAL_CALL
BreakIterator_Unicode::supportsService(const OUString& rServiceName)
{
return cppu::supportsService(this, rServiceName);
}
uno::Sequence< OUString > SAL_CALL
BreakIterator_Unicode::getSupportedServiceNames()
{
uno::Sequence< OUString > aRet { OUString::createFromAscii(cBreakIterator) };
return aRet;
}
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
com_sun_star_i18n_BreakIterator_Unicode_get_implementation(
css::uno::XComponentContext *,
css::uno::Sequence<css::uno::Any> const &)
{
return cppu::acquire(new i18npool::BreakIterator_Unicode());
}
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