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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2008-2018 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef PX_SIMPLEXMLWRITER_H
#define PX_SIMPLEXMLWRITER_H
#include "PsArray.h"
#include "SnXmlMemoryPoolStreams.h"
#include "CmPhysXCommon.h"
namespace physx { namespace Sn {
class SimpleXmlWriter
{
public:
struct STagWatcher
{
typedef SimpleXmlWriter TXmlWriterType;
TXmlWriterType& mWriter;
STagWatcher( const STagWatcher& inOther );
STagWatcher& operator-( const STagWatcher& inOther );
STagWatcher( TXmlWriterType& inWriter, const char* inTagName )
: mWriter( inWriter )
{
mWriter.beginTag( inTagName );
}
~STagWatcher() { mWriter.endTag(); }
protected:
STagWatcher& operator=(const STagWatcher&);
};
virtual ~SimpleXmlWriter(){}
virtual void beginTag( const char* inTagname ) = 0;
virtual void endTag() = 0;
virtual void addAttribute( const char* inName, const char* inValue ) = 0;
virtual void writeContentTag( const char* inTag, const char* inContent ) = 0;
virtual void addContent( const char* inContent ) = 0;
virtual PxU32 tabCount() = 0;
private:
SimpleXmlWriter& operator=(const SimpleXmlWriter&);
};
template<typename TStreamType>
class SimpleXmlWriterImpl : public SimpleXmlWriter
{
PxProfileAllocatorWrapper mWrapper;
TStreamType& mStream;
SimpleXmlWriterImpl( const SimpleXmlWriterImpl& inOther );
SimpleXmlWriterImpl& operator=( const SimpleXmlWriterImpl& inOther );
PxProfileArray<const char*> mTags;
bool mTagOpen;
PxU32 mInitialTagDepth;
public:
SimpleXmlWriterImpl( TStreamType& inStream, PxAllocatorCallback& inAllocator, PxU32 inInitialTagDepth = 0 )
: mWrapper( inAllocator )
, mStream( inStream )
, mTags( mWrapper )
, mTagOpen( false )
, mInitialTagDepth( inInitialTagDepth )
{
}
virtual ~SimpleXmlWriterImpl()
{
while( mTags.size() )
endTag();
}
PxU32 tabCount() { return mTags.size() + mInitialTagDepth; }
void writeTabs( PxU32 inSize )
{
inSize += mInitialTagDepth;
for ( PxU32 idx =0; idx < inSize; ++idx )
mStream << "\t";
}
void beginTag( const char* inTagname )
{
closeTag();
writeTabs(mTags.size());
mTags.pushBack( inTagname );
mStream << "<" << inTagname;
mTagOpen = true;
}
void addAttribute( const char* inName, const char* inValue )
{
PX_ASSERT( mTagOpen );
mStream << " " << inName << "=" << "\"" << inValue << "\"";
}
void closeTag(bool useNewline = true)
{
if ( mTagOpen )
{
mStream << " " << ">";
if (useNewline )
mStream << "\n";
}
mTagOpen = false;
}
void doEndOpenTag()
{
mStream << "</" << mTags.back() << ">" << "\n";
}
void endTag()
{
PX_ASSERT( mTags.size() );
if ( mTagOpen )
mStream << " " << "/>" << "\n";
else
{
writeTabs(mTags.size()-1);
doEndOpenTag();
}
mTagOpen = false;
mTags.popBack();
}
static bool IsNormalizableWhitespace(char c) { return c == 0x9 || c == 0xA || c == 0xD; }
static bool IsValidXmlCharacter(char c) { return IsNormalizableWhitespace(c) || c >= 0x20; }
void addContent( const char* inContent )
{
closeTag(false);
//escape xml
for( ; *inContent; inContent++ )
{
switch (*inContent)
{
case '<':
mStream << "<";
break;
case '>':
mStream << ">";
break;
case '&':
mStream << "&";
break;
case '\'':
mStream << "'";
break;
case '"':
mStream << """;
break;
default:
if (IsValidXmlCharacter(*inContent)) {
if (IsNormalizableWhitespace(*inContent))
{
char s[32];
Ps::snprintf(s, 32, "&#x%02X;", unsigned(*inContent));
mStream << s;
}
else
mStream << *inContent;
}
break;
}
}
}
void writeContentTag( const char* inTag, const char* inContent )
{
beginTag( inTag );
addContent( inContent );
doEndOpenTag();
mTags.popBack();
}
void insertXml( const char* inXml )
{
closeTag();
mStream << inXml;
}
};
struct BeginTag
{
const char* mTagName;
BeginTag( const char* inTagName )
: mTagName( inTagName ) { }
};
struct EndTag
{
EndTag() {}
};
struct Att
{
const char* mAttName;
const char* mAttValue;
Att( const char* inAttName, const char* inAttValue )
: mAttName( inAttName )
, mAttValue( inAttValue ) { }
};
struct Content
{
const char* mContent;
Content( const char* inContent )
: mContent( inContent ) { }
};
struct ContentTag
{
const char* mTagName;
const char* mContent;
ContentTag( const char* inTagName, const char* inContent )
: mTagName( inTagName )
, mContent( inContent ) { }
};
inline SimpleXmlWriter& operator<<( SimpleXmlWriter& inWriter, const BeginTag& inTag ) { inWriter.beginTag( inTag.mTagName ); return inWriter; }
inline SimpleXmlWriter& operator<<( SimpleXmlWriter& inWriter, const EndTag& inTag ) { PX_UNUSED(inTag); inWriter.endTag(); return inWriter; }
inline SimpleXmlWriter& operator<<( SimpleXmlWriter& inWriter, const Att& inTag ) { inWriter.addAttribute(inTag.mAttName, inTag.mAttValue); return inWriter; }
inline SimpleXmlWriter& operator<<( SimpleXmlWriter& inWriter, const Content& inTag ) { inWriter.addContent(inTag.mContent); return inWriter; }
inline SimpleXmlWriter& operator<<( SimpleXmlWriter& inWriter, const ContentTag& inTag ) { inWriter.writeContentTag(inTag.mTagName, inTag.mContent); return inWriter; }
inline void writeProperty( SimpleXmlWriter& inWriter, MemoryBuffer& tempBuffer, const char* inPropName )
{
PxU8 data = 0;
tempBuffer.write( &data, sizeof(PxU8) );
inWriter.writeContentTag( inPropName, reinterpret_cast<const char*>( tempBuffer.mBuffer ) );
tempBuffer.clear();
}
template<typename TDataType>
inline void writeProperty( SimpleXmlWriter& inWriter, MemoryBuffer& tempBuffer, const char* inPropName, TDataType inValue )
{
tempBuffer << inValue;
writeProperty( inWriter, tempBuffer, inPropName );
}
} }
#endif
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