diff options
Diffstat (limited to 'i18npool/source/breakiterator/breakiteratorImpl.cxx')
| -rw-r--r-- | i18npool/source/breakiterator/breakiteratorImpl.cxx | 685 |
1 files changed, 685 insertions, 0 deletions
diff --git a/i18npool/source/breakiterator/breakiteratorImpl.cxx b/i18npool/source/breakiterator/breakiteratorImpl.cxx new file mode 100644 index 000000000..5037a7c63 --- /dev/null +++ b/i18npool/source/breakiterator/breakiteratorImpl.cxx @@ -0,0 +1,685 @@ +/* -*- 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 <config_locales.h> + +#include <breakiteratorImpl.hxx> +#include <cppuhelper/supportsservice.hxx> +#include <unicode/uchar.h> +#include <i18nutil/unicode.hxx> +#include <rtl/ustrbuf.hxx> + +#include <com/sun/star/i18n/CharType.hpp> +#include <com/sun/star/i18n/ScriptType.hpp> +#include <com/sun/star/i18n/WordType.hpp> +#include <com/sun/star/uno/XComponentContext.hpp> + +using namespace ::com::sun::star; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::i18n; +using namespace ::com::sun::star::lang; + +namespace i18npool { + +BreakIteratorImpl::BreakIteratorImpl( const Reference < XComponentContext >& rxContext ) : m_xContext( rxContext ) +{ +} + +BreakIteratorImpl::BreakIteratorImpl() +{ +} + +BreakIteratorImpl::~BreakIteratorImpl() +{ +} + +#define LBI getLocaleSpecificBreakIterator(rLocale) + +sal_Int32 SAL_CALL BreakIteratorImpl::nextCharacters( const OUString& Text, sal_Int32 nStartPos, + const Locale &rLocale, sal_Int16 nCharacterIteratorMode, sal_Int32 nCount, sal_Int32& nDone ) +{ + if (nCount < 0) + throw RuntimeException("BreakIteratorImpl::nextCharacters: expected nCount >=0, got " + + OUString::number(nCount)); + + return LBI->nextCharacters( Text, nStartPos, rLocale, nCharacterIteratorMode, nCount, nDone); +} + +sal_Int32 SAL_CALL BreakIteratorImpl::previousCharacters( const OUString& Text, sal_Int32 nStartPos, + const Locale& rLocale, sal_Int16 nCharacterIteratorMode, sal_Int32 nCount, sal_Int32& nDone ) +{ + if (nCount < 0) + throw RuntimeException("BreakIteratorImpl::previousCharacters: expected nCount >=0, got " + + OUString::number(nCount)); + + return LBI->previousCharacters( Text, nStartPos, rLocale, nCharacterIteratorMode, nCount, nDone); +} + +#define isZWSP(c) (ch == 0x200B) + +static sal_Int32 skipSpace(const OUString& Text, sal_Int32 nPos, sal_Int32 len, sal_Int16 rWordType, bool bDirection) +{ + sal_uInt32 ch=0; + sal_Int32 pos=nPos; + switch (rWordType) { + case WordType::ANYWORD_IGNOREWHITESPACES: + if (bDirection) + while (nPos < len) + { + ch = Text.iterateCodePoints(&pos); + if (!u_isWhitespace(ch) && !isZWSP(ch)) + break; + nPos = pos; + } + else + while (nPos > 0) + { + ch = Text.iterateCodePoints(&pos, -1); + if (!u_isWhitespace(ch) && !isZWSP(ch)) + break; + nPos = pos; + } + break; + case WordType::DICTIONARY_WORD: + if (bDirection) + while (nPos < len) + { + ch = Text.iterateCodePoints(&pos); + if (!u_isWhitespace(ch) && !isZWSP(ch) && (ch == 0x002E || u_isalnum(ch))) + break; + nPos = pos; + } + else + while (nPos > 0) + { + ch = Text.iterateCodePoints(&pos, -1); + if (!u_isWhitespace(ch) && !isZWSP(ch) && (ch == 0x002E || u_isalnum(ch))) + break; + nPos = pos; + } + break; + case WordType::WORD_COUNT: + if (bDirection) + while (nPos < len) + { + ch = Text.iterateCodePoints(&pos); + if (!u_isUWhiteSpace(ch) && !isZWSP(ch)) + break; + nPos = pos; + } + else + while (nPos > 0) + { + ch = Text.iterateCodePoints(&pos, -1); + if (!u_isUWhiteSpace(ch) && !isZWSP(ch)) + break; + nPos = pos; + } + break; + } + return nPos; +} + +Boundary SAL_CALL BreakIteratorImpl::nextWord( const OUString& Text, sal_Int32 nStartPos, + const Locale& rLocale, sal_Int16 rWordType ) +{ + sal_Int32 len = Text.getLength(); + if( nStartPos < 0 || len == 0 ) + result.endPos = result.startPos = 0; + else if (nStartPos >= len) + result.endPos = result.startPos = len; + else { + result = LBI->nextWord(Text, nStartPos, rLocale, rWordType); + + nStartPos = skipSpace(Text, result.startPos, len, rWordType, true); + + if ( nStartPos != result.startPos) { + if( nStartPos >= len ) + result.startPos = result.endPos = len; + else { + result = LBI->getWordBoundary(Text, nStartPos, rLocale, rWordType, true); + // i88041: avoid startPos goes back to nStartPos when switching between Latin and CJK scripts + if (result.startPos < nStartPos) result.startPos = nStartPos; + } + } + } + return result; +} + +static bool isCJK( const Locale& rLocale ) { + return rLocale.Language == "zh" || rLocale.Language == "ja" || rLocale.Language == "ko"; +} + +Boundary SAL_CALL BreakIteratorImpl::previousWord( const OUString& Text, sal_Int32 nStartPos, + const Locale& rLocale, sal_Int16 rWordType) +{ + sal_Int32 len = Text.getLength(); + if( nStartPos <= 0 || len == 0 ) { + result.endPos = result.startPos = 0; + return result; + } else if (nStartPos > len) { + result.endPos = result.startPos = len; + return result; + } + + sal_Int32 nPos = skipSpace(Text, nStartPos, len, rWordType, false); + + // if some spaces are skipped, and the script type is Asian with no CJK rLocale, we have to return + // (nStartPos, -1) for caller to send correct rLocale for loading correct dictionary. + result.startPos = nPos; + if (nPos != nStartPos && nPos > 0 && !isCJK(rLocale) && getScriptClass(Text.iterateCodePoints(&nPos, -1)) == ScriptType::ASIAN) { + result.endPos = -1; + return result; + } + + return LBI->previousWord(Text, result.startPos, rLocale, rWordType); +} + + +Boundary SAL_CALL BreakIteratorImpl::getWordBoundary( const OUString& Text, sal_Int32 nPos, const Locale& rLocale, + sal_Int16 rWordType, sal_Bool bDirection ) +{ + sal_Int32 len = Text.getLength(); + if( nPos < 0 || len == 0 ) + result.endPos = result.startPos = 0; + else if (nPos > len) + result.endPos = result.startPos = len; + else { + sal_Int32 next, prev; + next = skipSpace(Text, nPos, len, rWordType, true); + prev = skipSpace(Text, nPos, len, rWordType, false); + if (prev == 0 && next == len) { + result.endPos = result.startPos = nPos; + } else if (prev == 0 && ! bDirection) { + result.endPos = result.startPos = 0; + } else if (next == len && bDirection) { + result.endPos = result.startPos = len; + } else { + if (next != prev) { + if (next == nPos && next != len) + bDirection = true; + else if (prev == nPos && prev != 0) + bDirection = false; + else + nPos = bDirection ? next : prev; + } + result = LBI->getWordBoundary(Text, nPos, rLocale, rWordType, bDirection); + } + } + return result; +} + +sal_Bool SAL_CALL BreakIteratorImpl::isBeginWord( const OUString& Text, sal_Int32 nPos, + const Locale& rLocale, sal_Int16 rWordType ) +{ + sal_Int32 len = Text.getLength(); + + if (nPos < 0 || nPos >= len) return false; + + sal_Int32 tmp = skipSpace(Text, nPos, len, rWordType, true); + + if (tmp != nPos) return false; + + result = getWordBoundary(Text, nPos, rLocale, rWordType, true); + + return result.startPos == nPos; +} + +sal_Bool SAL_CALL BreakIteratorImpl::isEndWord( const OUString& Text, sal_Int32 nPos, + const Locale& rLocale, sal_Int16 rWordType ) +{ + sal_Int32 len = Text.getLength(); + + if (nPos <= 0 || nPos > len) return false; + + sal_Int32 tmp = skipSpace(Text, nPos, len, rWordType, false); + + if (tmp != nPos) return false; + + result = getWordBoundary(Text, nPos, rLocale, rWordType, false); + + return result.endPos == nPos; +} + +sal_Int32 SAL_CALL BreakIteratorImpl::beginOfSentence( const OUString& Text, sal_Int32 nStartPos, + const Locale &rLocale ) +{ + if (nStartPos < 0 || nStartPos > Text.getLength()) + return -1; + if (Text.isEmpty()) return 0; + return LBI->beginOfSentence(Text, nStartPos, rLocale); +} + +sal_Int32 SAL_CALL BreakIteratorImpl::endOfSentence( const OUString& Text, sal_Int32 nStartPos, + const Locale &rLocale ) +{ + if (nStartPos < 0 || nStartPos > Text.getLength()) + return -1; + if (Text.isEmpty()) return 0; + return LBI->endOfSentence(Text, nStartPos, rLocale); +} + +LineBreakResults SAL_CALL BreakIteratorImpl::getLineBreak( const OUString& Text, sal_Int32 nStartPos, + const Locale& rLocale, sal_Int32 nMinBreakPos, const LineBreakHyphenationOptions& hOptions, + const LineBreakUserOptions& bOptions ) +{ + return LBI->getLineBreak(Text, nStartPos, rLocale, nMinBreakPos, hOptions, bOptions); +} + +sal_Int16 SAL_CALL BreakIteratorImpl::getScriptType( const OUString& Text, sal_Int32 nPos ) +{ + return (nPos < 0 || nPos >= Text.getLength()) ? ScriptType::WEAK : + getScriptClass(Text.iterateCodePoints(&nPos, 0)); +} + + +/** Increments/decrements position first, then obtains character. + @return current position, may be -1 or text length if string was consumed. + */ +static sal_Int32 iterateCodePoints(const OUString& Text, sal_Int32 &nStartPos, sal_Int32 inc, sal_uInt32& ch) { + sal_Int32 nLen = Text.getLength(); + if (nStartPos + inc < 0 || nStartPos + inc >= nLen) { + ch = 0; + nStartPos = nStartPos + inc < 0 ? -1 : nLen; + } else { + ch = Text.iterateCodePoints(&nStartPos, inc); + // Fix for #i80436#. + // erAck: 2009-06-30T21:52+0200 This logic looks somewhat + // suspicious as if it cures a symptom... anyway, had to add + // nStartPos < Text.getLength() to silence the (correct) assertion + // in rtl_uString_iterateCodePoints() if Text was one character + // (codepoint) only, made up of a surrogate pair. + //if (inc > 0 && nStartPos < Text.getLength()) + // ch = Text.iterateCodePoints(&nStartPos, 0); + // With surrogates, nStartPos may actually point behind string + // now, even if inc is only +1 + if (inc > 0) + ch = (nStartPos < nLen ? Text.iterateCodePoints(&nStartPos, 0) : 0); + } + return nStartPos; +} + + +sal_Int32 SAL_CALL BreakIteratorImpl::beginOfScript( const OUString& Text, + sal_Int32 nStartPos, sal_Int16 ScriptType ) +{ + if (nStartPos < 0 || nStartPos >= Text.getLength()) + return -1; + + if(ScriptType != getScriptClass(Text.iterateCodePoints(&nStartPos, 0))) + return -1; + + if (nStartPos == 0) return 0; + sal_uInt32 ch=0; + while (iterateCodePoints(Text, nStartPos, -1, ch) >= 0 && ScriptType == getScriptClass(ch)) { + if (nStartPos == 0) return 0; + } + + return iterateCodePoints(Text, nStartPos, 1, ch); +} + +sal_Int32 SAL_CALL BreakIteratorImpl::endOfScript( const OUString& Text, + sal_Int32 nStartPos, sal_Int16 ScriptType ) +{ + if (nStartPos < 0 || nStartPos >= Text.getLength()) + return -1; + + if(ScriptType != getScriptClass(Text.iterateCodePoints(&nStartPos, 0))) + return -1; + + sal_Int32 strLen = Text.getLength(); + sal_uInt32 ch=0; + while(iterateCodePoints(Text, nStartPos, 1, ch) < strLen ) { + sal_Int16 currentCharScriptType = getScriptClass(ch); + if(ScriptType != currentCharScriptType && currentCharScriptType != ScriptType::WEAK) + break; + } + return nStartPos; +} + +sal_Int32 SAL_CALL BreakIteratorImpl::previousScript( const OUString& Text, + sal_Int32 nStartPos, sal_Int16 ScriptType ) +{ + if (nStartPos < 0) + return -1; + if (nStartPos > Text.getLength()) + nStartPos = Text.getLength(); + + sal_Int16 numberOfChange = (ScriptType == getScriptClass(Text.iterateCodePoints(&nStartPos, 0))) ? 3 : 2; + + sal_uInt32 ch=0; + while (numberOfChange > 0 && iterateCodePoints(Text, nStartPos, -1, ch) >= 0) { + if (((numberOfChange % 2) == 0) != (ScriptType != getScriptClass(ch))) + numberOfChange--; + else if (nStartPos == 0) { + return -1; + } + } + return numberOfChange == 0 ? iterateCodePoints(Text, nStartPos, 1, ch) : -1; +} + +sal_Int32 SAL_CALL BreakIteratorImpl::nextScript( const OUString& Text, sal_Int32 nStartPos, + sal_Int16 ScriptType ) + +{ + if (nStartPos < 0) + nStartPos = 0; + sal_Int32 strLen = Text.getLength(); + if (nStartPos >= strLen) + return -1; + + sal_Int16 numberOfChange = (ScriptType == getScriptClass(Text.iterateCodePoints(&nStartPos, 0))) ? 2 : 1; + + sal_uInt32 ch=0; + while (numberOfChange > 0 && iterateCodePoints(Text, nStartPos, 1, ch) < strLen) { + sal_Int16 currentCharScriptType = getScriptClass(ch); + if ((numberOfChange == 1) ? (ScriptType == currentCharScriptType) : + (ScriptType != currentCharScriptType && currentCharScriptType != ScriptType::WEAK)) + numberOfChange--; + } + return numberOfChange == 0 ? nStartPos : -1; +} + +sal_Int32 SAL_CALL BreakIteratorImpl::beginOfCharBlock( const OUString& Text, sal_Int32 nStartPos, + const Locale& /*rLocale*/, sal_Int16 CharType ) +{ + if (CharType == CharType::ANY_CHAR) return 0; + if (nStartPos < 0 || nStartPos >= Text.getLength()) return -1; + if (CharType != static_cast<sal_Int16>(u_charType( Text.iterateCodePoints(&nStartPos, 0)))) return -1; + + sal_Int32 nPos=nStartPos; + while(nStartPos > 0 && CharType == static_cast<sal_Int16>(u_charType(Text.iterateCodePoints(&nPos, -1)))) { nStartPos=nPos; } + return nStartPos; // begin of char block is inclusive +} + +sal_Int32 SAL_CALL BreakIteratorImpl::endOfCharBlock( const OUString& Text, sal_Int32 nStartPos, + const Locale& /*rLocale*/, sal_Int16 CharType ) +{ + sal_Int32 strLen = Text.getLength(); + + if (CharType == CharType::ANY_CHAR) return strLen; // end of char block is exclusive + if (nStartPos < 0 || nStartPos >= strLen) return -1; + if (CharType != static_cast<sal_Int16>(u_charType(Text.iterateCodePoints(&nStartPos, 0)))) return -1; + + sal_uInt32 ch=0; + while(iterateCodePoints(Text, nStartPos, 1, ch) < strLen && CharType == static_cast<sal_Int16>(u_charType(ch))) {} + return nStartPos; // end of char block is exclusive +} + +sal_Int32 SAL_CALL BreakIteratorImpl::nextCharBlock( const OUString& Text, sal_Int32 nStartPos, + const Locale& /*rLocale*/, sal_Int16 CharType ) +{ + if (CharType == CharType::ANY_CHAR) return -1; + if (nStartPos < 0 || nStartPos >= Text.getLength()) return -1; + + sal_Int16 numberOfChange = (CharType == static_cast<sal_Int16>(u_charType(Text.iterateCodePoints(&nStartPos, 0)))) ? 2 : 1; + sal_Int32 strLen = Text.getLength(); + + sal_uInt32 ch=0; + while (numberOfChange > 0 && iterateCodePoints(Text, nStartPos, 1, ch) < strLen) { + if ((CharType != static_cast<sal_Int16>(u_charType(ch))) != (numberOfChange == 1)) + numberOfChange--; + } + return numberOfChange == 0 ? nStartPos : -1; +} + +sal_Int32 SAL_CALL BreakIteratorImpl::previousCharBlock( const OUString& Text, sal_Int32 nStartPos, + const Locale& /*rLocale*/, sal_Int16 CharType ) +{ + if(CharType == CharType::ANY_CHAR) return -1; + if (nStartPos < 0 || nStartPos >= Text.getLength()) return -1; + + sal_Int16 numberOfChange = (CharType == static_cast<sal_Int16>(u_charType(Text.iterateCodePoints(&nStartPos, 0)))) ? 3 : 2; + + sal_uInt32 ch=0; + while (numberOfChange > 0 && iterateCodePoints(Text, nStartPos, -1, ch) >= 0) { + if (((numberOfChange % 2) == 0) != (CharType != static_cast<sal_Int16>(u_charType(ch)))) + numberOfChange--; + if (nStartPos == 0 && numberOfChange > 0) { + numberOfChange--; + if (numberOfChange == 0) return nStartPos; + } + } + return numberOfChange == 0 ? iterateCodePoints(Text, nStartPos, 1, ch) : -1; +} + + +sal_Int16 SAL_CALL BreakIteratorImpl::getWordType( const OUString& /*Text*/, + sal_Int32 /*nPos*/, const Locale& /*rLocale*/ ) +{ + return 0; +} + +namespace +{ +sal_Int16 getScriptClassByUAX24Script(sal_uInt32 currentChar) +{ + int32_t script = u_getIntPropertyValue(currentChar, UCHAR_SCRIPT); + return unicode::getScriptClassFromUScriptCode(static_cast<UScriptCode>(script)); +} + +struct UBlock2Script +{ + UBlockCode from; + UBlockCode to; + sal_Int16 script; +}; + +static const UBlock2Script scriptList[] = +{ + {UBLOCK_NO_BLOCK, UBLOCK_NO_BLOCK, ScriptType::WEAK}, + {UBLOCK_BASIC_LATIN, UBLOCK_SPACING_MODIFIER_LETTERS, ScriptType::LATIN}, + {UBLOCK_GREEK, UBLOCK_ARMENIAN, ScriptType::LATIN}, + {UBLOCK_HEBREW, UBLOCK_MYANMAR, ScriptType::COMPLEX}, + {UBLOCK_GEORGIAN, UBLOCK_GEORGIAN, ScriptType::LATIN}, + {UBLOCK_HANGUL_JAMO, UBLOCK_HANGUL_JAMO, ScriptType::ASIAN}, + {UBLOCK_ETHIOPIC, UBLOCK_ETHIOPIC, ScriptType::COMPLEX}, + {UBLOCK_CHEROKEE, UBLOCK_RUNIC, ScriptType::LATIN}, + {UBLOCK_KHMER, UBLOCK_MONGOLIAN, ScriptType::COMPLEX}, + {UBLOCK_LATIN_EXTENDED_ADDITIONAL, UBLOCK_GREEK_EXTENDED, ScriptType::LATIN}, + {UBLOCK_NUMBER_FORMS, UBLOCK_NUMBER_FORMS, ScriptType::WEAK}, + {UBLOCK_CJK_RADICALS_SUPPLEMENT, UBLOCK_HANGUL_SYLLABLES, ScriptType::ASIAN}, + {UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS, UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS, ScriptType::ASIAN}, + {UBLOCK_ARABIC_PRESENTATION_FORMS_A, UBLOCK_ARABIC_PRESENTATION_FORMS_A, ScriptType::COMPLEX}, + {UBLOCK_CJK_COMPATIBILITY_FORMS, UBLOCK_CJK_COMPATIBILITY_FORMS, ScriptType::ASIAN}, + {UBLOCK_ARABIC_PRESENTATION_FORMS_B, UBLOCK_ARABIC_PRESENTATION_FORMS_B, ScriptType::COMPLEX}, + {UBLOCK_HALFWIDTH_AND_FULLWIDTH_FORMS, UBLOCK_HALFWIDTH_AND_FULLWIDTH_FORMS, ScriptType::ASIAN}, + {UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B, UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS_SUPPLEMENT, ScriptType::ASIAN}, + {UBLOCK_CJK_STROKES, UBLOCK_CJK_STROKES, ScriptType::ASIAN}, + {UBLOCK_LATIN_EXTENDED_C, UBLOCK_LATIN_EXTENDED_D, ScriptType::LATIN} +}; + +#define scriptListCount SAL_N_ELEMENTS(scriptList) + +//always sets rScriptType + +//returns true for characters historically explicitly assigned to +//latin/weak/asian + +//returns false for characters that historically implicitly assigned to +//weak as unknown +bool getCompatibilityScriptClassByBlock(sal_uInt32 currentChar, sal_Int16 &rScriptType) +{ + bool bKnown = true; + //handle specific characters always as weak: + // 0x01 - this breaks a word + // 0x02 - this can be inside a word + // 0x20 & 0xA0 - Bug 102975, declare western space and non-break space as WEAK char. + if( 0x01 == currentChar || 0x02 == currentChar || 0x20 == currentChar || 0xA0 == currentChar) + rScriptType = ScriptType::WEAK; + // Few Spacing Modifier Letters that can be Bopomofo tonal marks. + else if ( 0x2CA == currentChar || 0x2CB == currentChar || 0x2C7 == currentChar || 0x2D9 == currentChar ) + rScriptType = ScriptType::WEAK; + // workaround for Coptic + else if ( 0x2C80 <= currentChar && 0x2CE3 >= currentChar) + rScriptType = ScriptType::LATIN; + else + { + UBlockCode block=ublock_getCode(currentChar); + size_t i = 0; + while (i < scriptListCount) + { + if (block <= scriptList[i].to) + break; + ++i; + } + if (i < scriptListCount && block >= scriptList[i].from) + rScriptType = scriptList[i].script; + else + { + rScriptType = ScriptType::WEAK; + bKnown = false; + } + } + return bKnown; +} +} + +sal_Int16 BreakIteratorImpl::getScriptClass(sal_uInt32 currentChar) +{ + static sal_uInt32 lastChar = 0; + static sal_Int16 nRet = ScriptType::WEAK; + + if (currentChar != lastChar) + { + lastChar = currentChar; + + if (!getCompatibilityScriptClassByBlock(currentChar, nRet)) + nRet = getScriptClassByUAX24Script(currentChar); + } + + return nRet; +} + +bool BreakIteratorImpl::createLocaleSpecificBreakIterator(const OUString& aLocaleName) +{ + // to share service between same Language but different Country code, like zh_CN and zh_TW + for (const lookupTableItem& listItem : lookupTable) { + if (aLocaleName == listItem.aLocale.Language) { + xBI = listItem.xBI; + return true; + } + } + +#if !WITH_LOCALE_ALL && !WITH_LOCALE_ja + if (aLocaleName == "ja") + return false; +#endif +#if !WITH_LOCALE_ALL && !WITH_LOCALE_zh + if (aLocaleName == "zh" || aLocaleName == "zh_TW") + return false; +#endif +#if !WITH_LOCALE_ALL && !WITH_LOCALE_ko + if (aLocaleName == "ko") + return false; +#endif +#if !WITH_LOCALE_ALL && !WITH_LOCALE_th + if (aLocaleName == "th") + return false; +#endif + + Reference < uno::XInterface > xI = m_xContext->getServiceManager()->createInstanceWithContext( + "com.sun.star.i18n.BreakIterator_" + aLocaleName, m_xContext); + + if ( xI.is() ) { + xBI.set(xI, UNO_QUERY); + if (xBI.is()) { + lookupTable.emplace_back(Locale(aLocaleName, aLocaleName, aLocaleName), xBI); + return true; + } + } + return false; +} + +Reference < XBreakIterator > +BreakIteratorImpl::getLocaleSpecificBreakIterator(const Locale& rLocale) +{ + if (xBI.is() && rLocale == aLocale) + return xBI; + else if (m_xContext.is()) { + aLocale = rLocale; + + for (const lookupTableItem& listItem : lookupTable) { + if (rLocale == listItem.aLocale) + { + xBI = listItem.xBI; + return xBI; + } + } + + OUStringLiteral under("_"); + + sal_Int32 l = rLocale.Language.getLength(); + sal_Int32 c = rLocale.Country.getLength(); + sal_Int32 v = rLocale.Variant.getLength(); + + if ((l > 0 && c > 0 && v > 0 && + // load service with name <base>_<lang>_<country>_<variant> + createLocaleSpecificBreakIterator(rLocale.Language + under + + rLocale.Country + under + rLocale.Variant)) || + (l > 0 && c > 0 && + // load service with name <base>_<lang>_<country> + createLocaleSpecificBreakIterator(rLocale.Language + under + + rLocale.Country)) || + (l > 0 && c > 0 && rLocale.Language == "zh" && + (rLocale.Country == "HK" || + rLocale.Country == "MO" ) && + // if the country code is HK or MO, one more step to try TW. + createLocaleSpecificBreakIterator(rLocale.Language + under + + "TW")) || + (l > 0 && + // load service with name <base>_<lang> + createLocaleSpecificBreakIterator(rLocale.Language)) || + // load default service with name <base>_Unicode + createLocaleSpecificBreakIterator("Unicode")) { + lookupTable.emplace_back( aLocale, xBI ); + return xBI; + } + } + throw RuntimeException("getLocaleSpecificBreakIterator: iterator not found"); +} + +OUString SAL_CALL +BreakIteratorImpl::getImplementationName() +{ + return "com.sun.star.i18n.BreakIterator"; +} + +sal_Bool SAL_CALL +BreakIteratorImpl::supportsService(const OUString& rServiceName) +{ + return cppu::supportsService(this, rServiceName); +} + +Sequence< OUString > SAL_CALL +BreakIteratorImpl::getSupportedServiceNames() +{ + return { "com.sun.star.i18n.BreakIterator" }; +} + +} + +extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface * +com_sun_star_i18n_BreakIterator_get_implementation( + css::uno::XComponentContext *context, + css::uno::Sequence<css::uno::Any> const &) +{ + return cppu::acquire(new i18npool::BreakIteratorImpl(context)); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |