breakiterator_unicode.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * 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
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 *   ownership. The ASF licenses this file to you under the Apache
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 */
#pragma once
 
#include "breakiteratorImpl.hxx"
 
#include <unicode/brkiter.h>
#include <unicode/utext.h>
#include <memory>
#include <unordered_map>
 
namespace i18npool {
 
#define LOAD_CHARACTER_BREAKITERATOR    0
#define LOAD_WORD_BREAKITERATOR         1
#define LOAD_SENTENCE_BREAKITERATOR     2
#define LOAD_LINE_BREAKITERATOR         3
 
 
 
class BreakIterator_Unicode : public BreakIteratorImpl
{
public:
    BreakIterator_Unicode();
    virtual ~BreakIterator_Unicode() override;
 
    virtual sal_Int32 SAL_CALL previousCharacters( const OUString& Text, sal_Int32 nStartPos,
        const css::lang::Locale& nLocale, sal_Int16 nCharacterIteratorMode, sal_Int32 nCount,
        sal_Int32& nDone ) override;
    virtual sal_Int32 SAL_CALL nextCharacters( const OUString& Text, sal_Int32 nStartPos,
        const css::lang::Locale& rLocale, sal_Int16 nCharacterIteratorMode, sal_Int32 nCount,
        sal_Int32& nDone ) override;
 
    virtual css::i18n::Boundary SAL_CALL previousWord( const OUString& Text, sal_Int32 nStartPos,
        const css::lang::Locale& nLocale, sal_Int16 WordType) override;
    virtual css::i18n::Boundary SAL_CALL nextWord( const OUString& Text, sal_Int32 nStartPos,
        const css::lang::Locale& nLocale, sal_Int16 WordType) override;
    virtual css::i18n::Boundary SAL_CALL getWordBoundary( const OUString& Text, sal_Int32 nPos,
        const css::lang::Locale& nLocale, sal_Int16 WordType, sal_Bool bDirection ) override;
 
    virtual sal_Int32 SAL_CALL beginOfSentence( const OUString& Text, sal_Int32 nStartPos,
        const css::lang::Locale& nLocale ) override;
    virtual sal_Int32 SAL_CALL endOfSentence( const OUString& Text, sal_Int32 nStartPos,
        const css::lang::Locale& nLocale ) override;
 
    virtual css::i18n::LineBreakResults SAL_CALL getLineBreak( const OUString& Text, sal_Int32 nStartPos,
        const css::lang::Locale& nLocale, sal_Int32 nMinBreakPos,
        const css::i18n::LineBreakHyphenationOptions& hOptions,
        const css::i18n::LineBreakUserOptions& bOptions ) override;
 
    //XServiceInfo
    virtual OUString SAL_CALL getImplementationName() override;
    virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
 
protected:
    const char *cBreakIterator, *lineRule;
 
    struct BI_ValueData
    {
        OUString                                maICUText;
        UText*                                  mpUt;
        std::shared_ptr< icu::BreakIterator >   mpBreakIterator;
 
        BI_ValueData() : mpUt(nullptr)
        {
        }
        ~BI_ValueData()
        {
            utext_close(mpUt);
        }
    };
 
    struct BI_Data
    {
        std::shared_ptr< BI_ValueData > mpValue;
        OString                         maBIMapKey;
    } character, sentence, line, *icuBI;
    BI_Data words[4]; // 4 is css::i18n::WordType enumeration size
 
    void loadICUBreakIterator(const css::lang::Locale& rLocale,
        sal_Int16 rBreakType, sal_Int16 rWordType, const char* name, const OUString& rText);
 
public:
    typedef std::unordered_map< OString, std::shared_ptr< BI_ValueData > > BIMap;
};
 
}
 
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