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/* -*- 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/.
*/
#include <comphelper/sequence.hxx>
#include <rtl/ustrbuf.hxx>
#include <transliteration_Ignore.hxx>
#include <unicode/translit.h>
namespace i18npool {
ignoreDiacritics_CTL::ignoreDiacritics_CTL()
{
func = nullptr;
table = nullptr;
map = nullptr;
transliterationName = "ignoreDiacritics_CTL";
implementationName = "com.sun.star.i18n.Transliteration.ignoreDiacritics_CTL";
UErrorCode nStatus = U_ZERO_ERROR;
m_transliterator = icu::Transliterator::createInstance("NFD; [:M:] Remove; NFC",
UTRANS_FORWARD, nStatus);
if (U_FAILURE(nStatus))
m_transliterator = nullptr;
}
sal_Unicode SAL_CALL
ignoreDiacritics_CTL::transliterateChar2Char(sal_Unicode nInChar)
{
if (!m_transliterator)
throw css::uno::RuntimeException();
icu::UnicodeString aChar(nInChar);
m_transliterator->transliterate(aChar);
if (aChar.isEmpty())
return 0xffff; // Skip this character.
if (aChar.length() > 1)
return nInChar; // Don't know what to do here, return the original.
return aChar[0];
}
OUString
ignoreDiacritics_CTL::foldingImpl(const OUString& rInStr, sal_Int32 nStartPos,
sal_Int32 nCount, css::uno::Sequence<sal_Int32>& rOffset, bool useOffset)
{
if (!m_transliterator)
throw css::uno::RuntimeException();
if (nStartPos < 0 || nStartPos + nCount > rInStr.getLength())
throw css::uno::RuntimeException();
if (useOffset)
{
OUStringBuffer aOutBuf(nCount);
std::vector<sal_Int32> aOffset;
aOffset.reserve(nCount);
sal_Int32 nPosition = nStartPos;
while (nPosition < nStartPos + nCount)
{
sal_Int32 nIndex = nPosition;
UChar32 nChar = rInStr.iterateCodePoints(&nIndex);
icu::UnicodeString aUStr(nChar);
m_transliterator->transliterate(aUStr);
aOutBuf.append(reinterpret_cast<const sal_Unicode*>(aUStr.getBuffer()), aUStr.length());
std::fill_n(std::back_inserter(aOffset), aUStr.length(), nPosition);
nPosition = nIndex;
}
rOffset = comphelper::containerToSequence(aOffset);
return aOutBuf.makeStringAndClear();
}
else
{
icu::UnicodeString aUStr(reinterpret_cast<const UChar*>(rInStr.getStr()) + nStartPos, nCount);
m_transliterator->transliterate(aUStr);
return OUString(reinterpret_cast<const sal_Unicode*>(aUStr.getBuffer()), aUStr.length());
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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