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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/.
*
* 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 <oox/helper/attributelist.hxx>
#include <cassert>
#include <osl/diagnose.h>
#include <rtl/ustrbuf.hxx>
#include <sax/fastattribs.hxx>
#include <oox/token/tokenmap.hxx>
namespace oox {
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::xml::sax;
namespace {
const sal_Int32 XSTRING_ENCCHAR_LEN = 7;
bool lclAddHexDigit( sal_Unicode& orcChar, sal_Unicode cDigit, int nBitShift )
{
if( ('0' <= cDigit) && (cDigit <= '9') ) { orcChar |= ((cDigit - '0') << nBitShift); return true; }
if( ('a' <= cDigit) && (cDigit <= 'f') ) { orcChar |= ((cDigit - 'a' + 10) << nBitShift); return true; }
if( ('A' <= cDigit) && (cDigit <= 'F') ) { orcChar |= ((cDigit - 'A' + 10) << nBitShift); return true; }
return false;
}
sal_Unicode lclGetXChar( const sal_Unicode*& rpcStr, const sal_Unicode* pcEnd )
{
sal_Unicode cChar = 0;
if( (pcEnd - rpcStr >= XSTRING_ENCCHAR_LEN) &&
(rpcStr[ 0 ] == '_') &&
(rpcStr[ 1 ] == 'x') &&
(rpcStr[ 6 ] == '_') &&
lclAddHexDigit( cChar, rpcStr[ 2 ], 12 ) &&
lclAddHexDigit( cChar, rpcStr[ 3 ], 8 ) &&
lclAddHexDigit( cChar, rpcStr[ 4 ], 4 ) &&
lclAddHexDigit( cChar, rpcStr[ 5 ], 0 ) )
{
rpcStr += XSTRING_ENCCHAR_LEN;
return cChar;
}
return *rpcStr++;
}
} // namespace
sal_Int32 AttributeConversion::decodeToken( const OUString& rValue )
{
return TokenMap::getTokenFromUnicode( rValue );
}
OUString AttributeConversion::decodeXString( const OUString& rValue )
{
// string shorter than one encoded character - no need to decode
if( rValue.getLength() < XSTRING_ENCCHAR_LEN )
return rValue;
OUStringBuffer aBuffer;
const sal_Unicode* pcStr = rValue.getStr();
const sal_Unicode* pcEnd = pcStr + rValue.getLength();
while( pcStr < pcEnd )
aBuffer.append( lclGetXChar( pcStr, pcEnd ) );
return aBuffer.makeStringAndClear();
}
sal_Int32 AttributeConversion::decodeInteger( const OUString& rValue )
{
return rValue.toInt32();
}
sal_uInt32 AttributeConversion::decodeUnsigned( const OUString& rValue )
{
return getLimitedValue< sal_uInt32, sal_Int64 >( rValue.toInt64(), 0, SAL_MAX_UINT32 );
}
sal_Int64 AttributeConversion::decodeHyper( const OUString& rValue )
{
return rValue.toInt64();
}
sal_Int32 AttributeConversion::decodeIntegerHex( const OUString& rValue )
{
// It looks like all Office Open XML attributes containing hexadecimal
// values are based on xsd:hexBinary and so use an unsigned representation:
return static_cast< sal_Int32 >(rValue.toUInt32( 16 ));
//TODO: Change this function to return sal_uInt32 and get rid of the
// cast, but that will have a ripple effect
}
AttributeList::AttributeList( const Reference< XFastAttributeList >& rxAttribs ) :
mxAttribs( rxAttribs ),
mpAttribList( nullptr )
{
OSL_ENSURE( mxAttribs.is(), "AttributeList::AttributeList - missing attribute list interface" );
}
sax_fastparser::FastAttributeList *AttributeList::getAttribList() const
{
if( mpAttribList == nullptr )
{
mpAttribList = sax_fastparser::FastAttributeList::castToFastAttributeList( mxAttribs );
}
return mpAttribList;
}
bool AttributeList::hasAttribute( sal_Int32 nAttrToken ) const
{
return mxAttribs->hasAttribute( nAttrToken );
}
// optional return values -----------------------------------------------------
OptValue< sal_Int32 > AttributeList::getToken( sal_Int32 nAttrToken ) const
{
sal_Int32 nToken = mxAttribs->getOptionalValueToken( nAttrToken, XML_TOKEN_INVALID );
return OptValue< sal_Int32 >( nToken != XML_TOKEN_INVALID, nToken );
}
OptValue< OUString > AttributeList::getString( sal_Int32 nAttrToken ) const
{
// check if the attribute exists (empty string may be different to missing attribute)
if( mxAttribs->hasAttribute( nAttrToken ) )
return OptValue< OUString >( mxAttribs->getOptionalValue( nAttrToken ) );
return OptValue< OUString >();
}
OptValue< OUString > AttributeList::getXString( sal_Int32 nAttrToken ) const
{
// check if the attribute exists (empty string may be different to missing attribute)
if( mxAttribs->hasAttribute( nAttrToken ) )
return OptValue< OUString >( AttributeConversion::decodeXString( mxAttribs->getOptionalValue( nAttrToken ) ) );
return OptValue< OUString >();
}
OptValue< double > AttributeList::getDouble( sal_Int32 nAttrToken ) const
{
double nValue;
bool bValid = getAttribList()->getAsDouble( nAttrToken, nValue );
return OptValue< double >( bValid, nValue );
}
OptValue< sal_Int32 > AttributeList::getInteger( sal_Int32 nAttrToken ) const
{
sal_Int32 nValue;
bool bValid = getAttribList()->getAsInteger( nAttrToken, nValue );
return OptValue< sal_Int32 >( bValid, nValue );
}
OptValue< sal_uInt32 > AttributeList::getUnsigned( sal_Int32 nAttrToken ) const
{
OUString aValue = mxAttribs->getOptionalValue( nAttrToken );
bool bValid = !aValue.isEmpty();
return OptValue< sal_uInt32 >( bValid, AttributeConversion::decodeUnsigned( aValue ) );
}
OptValue< sal_Int64 > AttributeList::getHyper( sal_Int32 nAttrToken ) const
{
OUString aValue = mxAttribs->getOptionalValue( nAttrToken );
bool bValid = !aValue.isEmpty();
return OptValue< sal_Int64 >( bValid, bValid ? AttributeConversion::decodeHyper( aValue ) : 0 );
}
OptValue< sal_Int32 > AttributeList::getIntegerHex( sal_Int32 nAttrToken ) const
{
OUString aValue = mxAttribs->getOptionalValue( nAttrToken );
bool bValid = !aValue.isEmpty();
return OptValue< sal_Int32 >( bValid, bValid ? AttributeConversion::decodeIntegerHex( aValue ) : 0 );
}
OptValue< bool > AttributeList::getBool( sal_Int32 nAttrToken ) const
{
const char *pAttr;
// catch the common cases as quickly as possible first
bool bHasAttr = getAttribList()->getAsChar( nAttrToken, pAttr );
if( !bHasAttr )
return OptValue< bool >();
if( !strcmp( pAttr, "false" ) )
return OptValue< bool >( false );
if( !strcmp( pAttr, "true" ) )
return OptValue< bool >( true );
// now for all the crazy stuff
// boolean attributes may be "t", "f", "true", "false", "on", "off", "1", or "0"
switch( getToken( nAttrToken, XML_TOKEN_INVALID ) )
{
case XML_t: return OptValue< bool >( true ); // used in VML
case XML_true: return OptValue< bool >( true );
case XML_on: return OptValue< bool >( true );
case XML_f: return OptValue< bool >( false ); // used in VML
case XML_false: return OptValue< bool >( false );
case XML_off: return OptValue< bool >( false );
}
OptValue< sal_Int32 > onValue = getInteger( nAttrToken );
return OptValue< bool >( onValue.has(), onValue.get() != 0 );
}
OptValue< util::DateTime > AttributeList::getDateTime( sal_Int32 nAttrToken ) const
{
OUString aValue = mxAttribs->getOptionalValue( nAttrToken );
util::DateTime aDateTime;
bool bValid = (aValue.getLength() == 19) && (aValue[ 4 ] == '-') && (aValue[ 7 ] == '-') &&
(aValue[ 10 ] == 'T') && (aValue[ 13 ] == ':') && (aValue[ 16 ] == ':');
if( bValid )
{
aDateTime.Year = static_cast< sal_uInt16 >( aValue.copy( 0, 4 ).toInt32() );
aDateTime.Month = static_cast< sal_uInt16 >( aValue.copy( 5, 2 ).toInt32() );
aDateTime.Day = static_cast< sal_uInt16 >( aValue.copy( 8, 2 ).toInt32() );
aDateTime.Hours = static_cast< sal_uInt16 >( aValue.copy( 11, 2 ).toInt32() );
aDateTime.Minutes = static_cast< sal_uInt16 >( aValue.copy( 14, 2 ).toInt32() );
aDateTime.Seconds = static_cast< sal_uInt16 >( aValue.copy( 17, 2 ).toInt32() );
}
return OptValue< util::DateTime >( bValid, aDateTime );
}
// defaulted return values ----------------------------------------------------
sal_Int32 AttributeList::getToken( sal_Int32 nAttrToken, sal_Int32 nDefault ) const
{
return mxAttribs->getOptionalValueToken( nAttrToken, nDefault );
}
OUString AttributeList::getString( sal_Int32 nAttrToken, const OUString& rDefault ) const
{
// try to avoid slow exception throw/catch if we can
if (rDefault.isEmpty())
return mxAttribs->getOptionalValue( nAttrToken );
try
{
return mxAttribs->getValue( nAttrToken );
}
catch( Exception& )
{
}
return rDefault;
}
OUString AttributeList::getXString( sal_Int32 nAttrToken, const OUString& rDefault ) const
{
return getXString( nAttrToken ).get( rDefault );
}
const char* AttributeList::getChar( sal_Int32 nAttrToken ) const
{
const char* p = nullptr;
bool bValid = getAttribList()->getAsChar(nAttrToken, p);
if (!bValid)
p = nullptr;
return p;
}
double AttributeList::getDouble( sal_Int32 nAttrToken, double fDefault ) const
{
return getDouble( nAttrToken ).get( fDefault );
}
sal_Int32 AttributeList::getInteger( sal_Int32 nAttrToken, sal_Int32 nDefault ) const
{
return getInteger( nAttrToken ).get( nDefault );
}
sal_uInt32 AttributeList::getUnsigned( sal_Int32 nAttrToken, sal_uInt32 nDefault ) const
{
return getUnsigned( nAttrToken ).get( nDefault );
}
sal_Int64 AttributeList::getHyper( sal_Int32 nAttrToken, sal_Int64 nDefault ) const
{
return getHyper( nAttrToken ).get( nDefault );
}
sal_Int32 AttributeList::getIntegerHex( sal_Int32 nAttrToken, sal_Int32 nDefault ) const
{
return getIntegerHex( nAttrToken ).get( nDefault );
}
sal_uInt32 AttributeList::getUnsignedHex( sal_Int32 nAttrToken, sal_uInt32 nDefault ) const
{
return getIntegerHex( nAttrToken ).get( nDefault );
}
bool AttributeList::getBool( sal_Int32 nAttrToken, bool bDefault ) const
{
return getBool( nAttrToken ).get( bDefault );
}
util::DateTime AttributeList::getDateTime( sal_Int32 nAttrToken, const util::DateTime& rDefault ) const
{
return getDateTime( nAttrToken ).get( rDefault );
}
std::vector<sal_Int32> AttributeList::getTokenList(sal_Int32 nAttrToken) const
{
std::vector<sal_Int32> aValues;
OUString sValue = getString(nAttrToken, "");
sal_Int32 nIndex = 0;
do
{
aValues.push_back(AttributeConversion::decodeToken(sValue.getToken(0, ' ', nIndex)));
} while (nIndex >= 0);
return aValues;
}
} // namespace oox
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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