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Diffstat (limited to 'connectivity/source/commontools/dbcharset.cxx')
| -rw-r--r-- | connectivity/source/commontools/dbcharset.cxx | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/connectivity/source/commontools/dbcharset.cxx b/connectivity/source/commontools/dbcharset.cxx new file mode 100644 index 000000000..ebe45c028 --- /dev/null +++ b/connectivity/source/commontools/dbcharset.cxx @@ -0,0 +1,190 @@ +/* -*- 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 . + */ + +#include <connectivity/dbcharset.hxx> +#include <osl/diagnose.h> +#include <rtl/tencinfo.h> + + +namespace dbtools +{ + + OCharsetMap::OCharsetMap() + { + } + + + void OCharsetMap::lateConstruct() + { + const rtl_TextEncoding eFirstEncoding = RTL_TEXTENCODING_DONTKNOW; + const rtl_TextEncoding eLastEncoding = 100; // TODO: a define in rtl/textenc.h would be fine here ... + OSL_ENSURE( 0 == eFirstEncoding, "OCharsetMap::OCharsetMap: somebody changed the numbers!" ); + + rtl_TextEncodingInfo aInfo; aInfo.StructSize = sizeof( rtl_TextEncodingInfo ); + for ( rtl_TextEncoding eEncoding = eFirstEncoding; eEncoding < eLastEncoding; ++eEncoding ) + { + if ( ( RTL_TEXTENCODING_DONTKNOW == eEncoding ) // this is always allowed - it has the special meaning "system encoding" + || ( rtl_getTextEncodingInfo( eEncoding, &aInfo ) + && approveEncoding( eEncoding, aInfo ) + ) + ) + { + m_aEncodings.insert( eEncoding ); + } + } + + OSL_ENSURE( find( RTL_TEXTENCODING_MS_1252 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding ANSI!" ); + OSL_ENSURE( find( RTL_TEXTENCODING_APPLE_ROMAN ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding macintosh!" ); + OSL_ENSURE( find( RTL_TEXTENCODING_IBM_437 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM437!" ); + OSL_ENSURE( find( RTL_TEXTENCODING_IBM_850) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM850!" ); + OSL_ENSURE( find( RTL_TEXTENCODING_IBM_860 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM860!" ); + OSL_ENSURE( find( RTL_TEXTENCODING_IBM_861 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM861!" ); + OSL_ENSURE( find( RTL_TEXTENCODING_IBM_863 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM863!" ); + OSL_ENSURE( find( RTL_TEXTENCODING_IBM_865 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM865!" ); + OSL_ENSURE( find( RTL_TEXTENCODING_IBM_866 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM866!" ); + OSL_ENSURE( find( RTL_TEXTENCODING_DONTKNOW ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding SYSTEM!" ); + OSL_ENSURE( find( RTL_TEXTENCODING_UTF8 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding UTF-8!" ); + OSL_ENSURE( find( RTL_TEXTENCODING_BIG5_HKSCS ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding Big5-HKSCS!" ); + } + + + bool OCharsetMap::approveEncoding( const rtl_TextEncoding _eEncoding, const rtl_TextEncodingInfo& _rInfo ) const + { + bool bIsMimeEncoding = 0 != ( _rInfo.Flags & RTL_TEXTENCODING_INFO_MIME ); + OSL_ENSURE( !bIsMimeEncoding || rtl_getMimeCharsetFromTextEncoding( _eEncoding ), + "OCharsetMap::OCharsetMap: inconsistence in rtl!" ); + return bIsMimeEncoding; + } + + + OCharsetMap::~OCharsetMap() + { + } + + + OCharsetMap::CharsetIterator OCharsetMap::begin() const + { + ensureConstructed( ); + return CharsetIterator(this, m_aEncodings.begin() ); + } + + + OCharsetMap::CharsetIterator OCharsetMap::find(const rtl_TextEncoding _eEncoding) const + { + ensureConstructed( ); + return CharsetIterator( this, m_aEncodings.find( _eEncoding ) ); + } + + + OCharsetMap::CharsetIterator OCharsetMap::findIanaName(const OUString& _rIanaName) const + { + ensureConstructed( ); + + rtl_TextEncoding eEncoding = RTL_TEXTENCODING_DONTKNOW; + if ( !_rIanaName.isEmpty() ) + { + // byte string conversion + OString sMimeByteString( _rIanaName.getStr(), _rIanaName.getLength(), RTL_TEXTENCODING_ASCII_US ); + // look up + eEncoding = rtl_getTextEncodingFromMimeCharset( sMimeByteString.getStr() ); + + if ( RTL_TEXTENCODING_DONTKNOW == eEncoding ) + { // if we're here, the name is not empty, but unknown -> this is an invalid name + return end(); + } + } + + return find( eEncoding ); + } + + + OCharsetMap::CharsetIterator OCharsetMap::end() const + { + ensureConstructed( ); + + return CharsetIterator( this, m_aEncodings.end() ); + } + + + CharsetIteratorDerefHelper::CharsetIteratorDerefHelper( const CharsetIteratorDerefHelper& _rSource ) + :m_eEncoding( _rSource.m_eEncoding ) + ,m_aIanaName( _rSource.m_aIanaName ) + { + } + + + CharsetIteratorDerefHelper:: CharsetIteratorDerefHelper(const rtl_TextEncoding _eEncoding, const OUString& _rIanaName ) + :m_eEncoding( _eEncoding ) + ,m_aIanaName( _rIanaName ) + { + } + + OCharsetMap::CharsetIterator::CharsetIterator(const OCharsetMap* _pContainer, OCharsetMap::TextEncBag::const_iterator const & _aPos ) + :m_pContainer( _pContainer ) + ,m_aPos( _aPos ) + { + OSL_ENSURE( m_pContainer, "OCharsetMap::CharsetIterator::CharsetIterator : invalid container!" ); + } + + CharsetIteratorDerefHelper OCharsetMap::CharsetIterator::operator*() const + { + OSL_ENSURE( m_aPos != m_pContainer->m_aEncodings.end(), "OCharsetMap::CharsetIterator::operator*: invalid position!"); + + rtl_TextEncoding eEncoding = *m_aPos; + OUString sIanaName; + + if ( RTL_TEXTENCODING_DONTKNOW != eEncoding ) + { // it's not the virtual "system charset" + const char* pIanaName = rtl_getMimeCharsetFromTextEncoding( eEncoding ); + OSL_ENSURE( pIanaName, "OCharsetMap::CharsetIterator: invalid mime name!" ); + if ( pIanaName ) + sIanaName = OUString::createFromAscii( pIanaName ); + } + return CharsetIteratorDerefHelper( eEncoding, sIanaName ); + } + + + const OCharsetMap::CharsetIterator& OCharsetMap::CharsetIterator::operator++() + { + OSL_ENSURE( m_aPos != m_pContainer->m_aEncodings.end(), "OCharsetMap::CharsetIterator::operator++ : invalid position!" ); + if ( m_aPos != m_pContainer->m_aEncodings.end()) + ++m_aPos; + return *this; + } + + + const OCharsetMap::CharsetIterator& OCharsetMap::CharsetIterator::operator--() + { + OSL_ENSURE( m_aPos != m_pContainer->m_aEncodings.begin(), "OCharsetMap::CharsetIterator::operator-- : invalid position!" ); + if ( m_aPos != m_pContainer->m_aEncodings.begin() ) + --m_aPos; + return *this; + } + + + bool operator==(const OCharsetMap::CharsetIterator& lhs, const OCharsetMap::CharsetIterator& rhs) + { + return ( lhs.m_pContainer == rhs.m_pContainer ) && ( lhs.m_aPos == rhs.m_aPos ); + } + + +} // namespace dbtools + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |