xref: /trunk/main/i18npool/source/transliteration/fullwidthToHalfwidth.cxx (revision 449ab281255486d6ec349c45a6ad7906d6939331)

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 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_i18npool.hxx"

// prevent internal compiler error with MSVC6SP3
#include <utility>

#include <i18nutil/widthfolding.hxx>
#define TRANSLITERATION_fullwidthToHalfwidth
#define TRANSLITERATION_fullwidthKatakanaToHalfwidthKatakana
#define TRANSLITERATION_fullwidthToHalfwidthLikeASC
#include <transliteration_OneToOne.hxx>

using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace rtl;

namespace com { namespace sun { namespace star { namespace i18n {

fullwidthToHalfwidth::fullwidthToHalfwidth()
{
    func = (TransFunc) 0;
    table = &widthfolding::getfull2halfTable();
    transliterationName = "fullwidthToHalfwidth";
    implementationName = "com.sun.star.i18n.Transliteration.FULLWIDTH_HALFWIDTH";
}

/**
 * Transliterate fullwidth to halfwidth.
 * The output is a reference of OUString. You MUST delete this object when you do not need to use it any more
 * The output string contains a transliterated string only, not whole string.
 */
OUString SAL_CALL
fullwidthToHalfwidth::transliterate( const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >& offset )
  throw(RuntimeException)
{
    // Decomposition: GA --> KA + voice-mark
    const OUString& newStr = widthfolding::decompose_ja_voiced_sound_marks (inStr, startPos, nCount, offset, useOffset);

    // One to One mapping
    useOffset = sal_False;
    const OUString &tmp = transliteration_OneToOne::transliterate( newStr, 0, newStr.getLength(), offset);
    useOffset = sal_True;
    return tmp;
}

sal_Unicode SAL_CALL
fullwidthToHalfwidth::transliterateChar2Char( sal_Unicode inChar)
  throw(RuntimeException, MultipleCharsOutputException)
{
    sal_Unicode newChar = widthfolding::decompose_ja_voiced_sound_marksChar2Char (inChar);
    if (newChar == 0xFFFF)
        throw MultipleCharsOutputException();
    return transliteration_OneToOne::transliterateChar2Char(inChar);
}

fullwidthKatakanaToHalfwidthKatakana::fullwidthKatakanaToHalfwidthKatakana()
{
    func = (TransFunc) 0;
    table = &widthfolding::getfullKana2halfKanaTable();
    transliterationName = "fullwidthKatakanaToHalfwidthKatakana";
    implementationName = "com.sun.star.i18n.Transliteration.FULLWIDTHKATAKANA_HALFWIDTHKATAKANA";
}

/**
 * Transliterate fullwidth katakana to halfwidth katakana.
 */
OUString SAL_CALL
fullwidthKatakanaToHalfwidthKatakana::transliterate( const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >& offset )
  throw(RuntimeException)
{
    // Decomposition: GA --> KA + voice-mark
    const OUString& newStr = widthfolding::decompose_ja_voiced_sound_marks (inStr, startPos, nCount, offset, useOffset);

    // One to One mapping
    useOffset = sal_False;
    const OUString &tmp = transliteration_OneToOne::transliterate( newStr, 0, newStr.getLength(), offset);
    useOffset = sal_True;
    return tmp;
}

sal_Unicode SAL_CALL
fullwidthKatakanaToHalfwidthKatakana::transliterateChar2Char( sal_Unicode inChar )
  throw(RuntimeException, MultipleCharsOutputException)
{
    sal_Unicode newChar = widthfolding::decompose_ja_voiced_sound_marksChar2Char (inChar);
    if (newChar == 0xFFFF)
        throw MultipleCharsOutputException();
    return transliteration_OneToOne::transliterateChar2Char(inChar);
}

fullwidthToHalfwidthLikeASC::fullwidthToHalfwidthLikeASC()
{
    func = (TransFunc) 0;
    table = &widthfolding::getfull2halfTableForASC();
    transliterationName = "fullwidthToHalfwidthLikeASC";
    implementationName = "com.sun.star.i18n.Transliteration.FULLWIDTH_HALFWIDTH_LIKE_ASC";
}

/**
 * Transliterate fullwidth to halfwidth like Excel's ASC function.
 */
OUString SAL_CALL
fullwidthToHalfwidthLikeASC::transliterate( const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >& offset )
  throw(RuntimeException)
{
    // Decomposition: GA --> KA + voice-mark
    const OUString& newStr = widthfolding::decompose_ja_voiced_sound_marks (inStr, startPos, nCount, offset, useOffset);

    // One to One mapping
    useOffset = sal_False;
    const OUString &tmp = transliteration_OneToOne::transliterate( newStr, 0, newStr.getLength(), offset);
    useOffset = sal_True;

    return tmp;
}

sal_Unicode SAL_CALL
fullwidthToHalfwidthLikeASC::transliterateChar2Char( sal_Unicode inChar )
  throw(RuntimeException, MultipleCharsOutputException)
{
    sal_Unicode newChar = widthfolding::decompose_ja_voiced_sound_marksChar2Char (inChar);
    if (newChar == 0xFFFF)
        throw MultipleCharsOutputException();
    return transliteration_OneToOne::transliterateChar2Char(inChar);
}

} } } }