/* -*- 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 .
*/
#ifndef INCLUDED_SAX_INC_XML2UTF_HXX
#define INCLUDED_SAX_INC_XML2UTF_HXX
#include <sal/config.h>
#include <memory>
#include <sal/types.h>
#include <rtl/string.hxx>
#include <com/sun/star/io/XInputStream.hpp>
namespace sax_expatwrap {
class Text2UnicodeConverter
{
public:
Text2UnicodeConverter(
const OString & sEncoding );
~Text2UnicodeConverter();
css::uno::Sequence < sal_Unicode > convert(
const css::uno::Sequence<sal_Int8> & );
bool canContinue()
const {
return m_bCanContinue; }
private:
void init( rtl_TextEncoding encoding );
rtl_TextToUnicodeConverter m_convText2Unicode;
rtl_TextToUnicodeContext m_contextText2Unicode;
bool m_bCanContinue;
bool m_bInitialized;
css::uno::Sequence<sal_Int8> m_seqSource;
};
/*----------------------------------------
*
* Unicode2TextConverter
*
**-----------------------------------------*/
class Unicode2TextConverter
{
public:
Unicode2TextConverter( rtl_TextEncoding encoding );
~Unicode2TextConverter();
css::uno::Sequence<sal_Int8> convert(
const sal_Unicode * , sal_Int32 nLength );
private:
rtl_UnicodeToTextConverter m_convUnicode2Text;
rtl_UnicodeToTextContext m_contextUnicode2Text;
css::uno::Sequence<sal_Unicode> m_seqSource;
};
/*----------------------------------------
*
* XMLFile2UTFConverter
*
**-----------------------------------------*/
class XMLFile2UTFConverter
{
public:
XMLFile2UTFConverter( ):
m_bStarted(
false )
{}
void setInputStream( css::uno::Reference< css::io::XInputStream >
const &r ) { m_in = r; }
void setEncoding(
const OString &s ) { m_sEncoding = s; }
// @param nMaxToRead The number of chars, that should be read. Note that this is no exact number. There
// may be returned less or more bytes than ordered.
/// @throws css::io::IOException
/// @throws css::io::NotConnectedException
/// @throws css::io::BufferSizeExceededException
/// @throws css::uno::RuntimeException
sal_Int32 readAndConvert( css::uno::Sequence<sal_Int8> &seq , sal_Int32 nMaxToRead );
private:
// Called only on first Sequence of bytes. Tries to figure out file format and encoding information.
// @return TRUE, when encoding information could be retrieved
// @return FALSE, when no encoding information was found in file
bool scanForEncoding( css::uno::Sequence<sal_Int8> &seq );
// Called only on first Sequence of bytes. Tries to figure out
// if enough data is available to scan encoding
// @return TRUE, when encoding is retrievable
// @return FALSE, when more data is needed
static bool isEncodingRecognizable(
const css::uno::Sequence< sal_Int8 > & seq );
// When encoding attribute is within the text (in the first line), it is removed.
static void removeEncoding( css::uno::Sequence<sal_Int8> &seq );
// Initializes decoding depending on m_sEncoding setting
void initializeDecoding();
private:
css::uno::Reference< css::io::XInputStream > m_in;
bool m_bStarted;
OString m_sEncoding;
std::unique_ptr<Text2UnicodeConverter> m_pText2Unicode;
std::unique_ptr<Unicode2TextConverter> m_pUnicode2Text;
};
}
#endif // INCLUDED_SAX_INC_XML2UTF_HXX
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