i18npool/inc/breakiterator_unicode.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #pragma once
  20
  21 #include "breakiteratorImpl.hxx"
  22
  23 #include <unicode/brkiter.h>
  24 #include <unicode/utext.h>
  25 #include <memory>
  26 #include <unordered_map>
  27
  28 namespace i18npool {
  29
  30 #define LOAD_CHARACTER_BREAKITERATOR    0
  31 #define LOAD_WORD_BREAKITERATOR         1
  32 #define LOAD_SENTENCE_BREAKITERATOR     2
  33 #define LOAD_LINE_BREAKITERATOR         3
  34
  35
  36
  37 class BreakIterator_Unicode : public BreakIteratorImpl
  38 {
  39 public:
  40     BreakIterator_Unicode();
  41     virtual ~BreakIterator_Unicode() override;
  42
  43     virtual sal_Int32 SAL_CALL previousCharacters( const OUString& Text, sal_Int32 nStartPos,
  44         const css::lang::Locale& nLocale, sal_Int16 nCharacterIteratorMode, sal_Int32 nCount,
  45         sal_Int32& nDone ) override;
  46     virtual sal_Int32 SAL_CALL nextCharacters( const OUString& Text, sal_Int32 nStartPos,
  47         const css::lang::Locale& rLocale, sal_Int16 nCharacterIteratorMode, sal_Int32 nCount,
  48         sal_Int32& nDone ) override;
  49
  50     virtual css::i18n::Boundary SAL_CALL previousWord( const OUString& Text, sal_Int32 nStartPos,
  51         const css::lang::Locale& nLocale, sal_Int16 WordType) override;
  52     virtual css::i18n::Boundary SAL_CALL nextWord( const OUString& Text, sal_Int32 nStartPos,
  53         const css::lang::Locale& nLocale, sal_Int16 WordType) override;
  54     virtual css::i18n::Boundary SAL_CALL getWordBoundary( const OUString& Text, sal_Int32 nPos,
  55         const css::lang::Locale& nLocale, sal_Int16 WordType, sal_Bool bDirection ) override;
  56
  57     virtual sal_Int32 SAL_CALL beginOfSentence( const OUString& Text, sal_Int32 nStartPos,
  58         const css::lang::Locale& nLocale ) override;
  59     virtual sal_Int32 SAL_CALL endOfSentence( const OUString& Text, sal_Int32 nStartPos,
  60         const css::lang::Locale& nLocale ) override;
  61
  62     virtual css::i18n::LineBreakResults SAL_CALL getLineBreak( const OUString& Text, sal_Int32 nStartPos,
  63         const css::lang::Locale& nLocale, sal_Int32 nMinBreakPos,
  64         const css::i18n::LineBreakHyphenationOptions& hOptions,
  65         const css::i18n::LineBreakUserOptions& bOptions ) override;
  66
  67     //XServiceInfo
  68     virtual OUString SAL_CALL getImplementationName() override;
  69     virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
  70     virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
  71
  72 protected:
  73     OUString cBreakIterator;
  74     const char *lineRule;
  75
  76     /** Used as map value. */
  77     struct BI_ValueData
  78     {
  79         OUString                                maICUText;
  80         UText*                                  mpUt;
  81         std::shared_ptr< icu::BreakIterator >   mpBreakIterator;
  82
  83         BI_ValueData() : mpUt(nullptr)
  84         {
  85         }
  86         ~BI_ValueData()
  87         {
  88             utext_close(mpUt);
  89         }
  90     };
  91
  92     struct BI_Data
  93     {
  94         std::shared_ptr< BI_ValueData > mpValue;
  95         OString                         maBIMapKey;
  96     } character, sentence, line, *icuBI;
  97     BI_Data words[4]; // 4 is css::i18n::WordType enumeration size
  98
  99     /// @throws css::uno::RuntimeException
 100     void loadICUBreakIterator(const css::lang::Locale& rLocale,
 101         sal_Int16 rBreakType, sal_Int16 rWordType, const char* name, const OUString& rText);
 102
 103 public:
 104     typedef std::unordered_map< OString, std::shared_ptr< BI_ValueData > > BIMap;
 105 };
 106
 107 }
 108
 109 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */