Space-Project/dependencies/physx-4.1/source/fastxml/include/PsFastXml.h
2021-01-16 17:11:39 +01:00

168 lines
5.1 KiB
C++

//
// 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) 2008-2019 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 PSFASTXML_PSFASTXML_H
#define PSFASTXML_PSFASTXML_H
#include "foundation/PxSimpleTypes.h" // defines basic data types; modify for your platform as needed.
#include "foundation/PxIO.h"
#include "foundation/PxAssert.h"
#include "PsAllocator.h"
namespace physx
{
namespace shdfnd
{
class FastXml
{
PX_NOCOPY(FastXml)
public:
class AttributePairs
{
int argc;
const char** argv;
public:
AttributePairs() : argc(0), argv(NULL)
{
}
AttributePairs(int c, const char** v) : argc(c), argv(v)
{
}
PX_INLINE int getNbAttr() const
{
return argc / 2;
}
const char* getKey(uint32_t index) const
{
PX_ASSERT((index * 2) < uint32_t(argc));
return argv[index * 2];
}
const char* getValue(uint32_t index) const
{
PX_ASSERT((index * 2 + 1) < uint32_t(argc));
return argv[index * 2 + 1];
}
const char* get(const char* attr) const
{
int32_t count = argc / 2;
for(int32_t i = 0; i < count; ++i)
{
const char* key = argv[i * 2], *value = argv[i * 2 + 1];
if(strcmp(key, attr) == 0)
return value;
}
return NULL;
}
};
/***
* Callbacks to the user with the contents of the XML file properly digested.
*/
class Callback
{
public:
virtual ~Callback()
{
}
virtual bool processComment(const char* comment) = 0; // encountered a comment in the XML
// 'element' is the name of the element that is being closed.
// depth is the recursion depth of this element.
// Return true to continue processing the XML file.
// Return false to stop processing the XML file; leaves the read pointer of the stream right after this close
// tag.
// The bool 'isError' indicates whether processing was stopped due to an error, or intentionally canceled early.
virtual bool processClose(const char* element, uint32_t depth, bool& isError) = 0; // process the 'close'
// indicator for a previously
// encountered element
// return true to continue processing the XML document, false to skip.
virtual bool processElement(const char* elementName, // name of the element
const char* elementData, // element data, null if none
const AttributePairs& attr, // attributes
int32_t lineno) = 0; // line number in the source XML file
// process the XML declaration header
virtual bool processXmlDeclaration(const AttributePairs&, // attributes
const char* /*elementData*/, int32_t /*lineno*/)
{
return true;
}
virtual bool processDoctype(const char* /*rootElement*/, // Root element tag
const char* /*type*/, // SYSTEM or PUBLIC
const char* /*fpi*/, // Formal Public Identifier
const char* /*uri*/) // Path to schema file
{
return true;
}
virtual void* allocate(uint32_t size)
{
return getAllocator().allocate(size, "FastXml", __FILE__, __LINE__);
}
virtual void deallocate(void* ptr)
{
getAllocator().deallocate(ptr);
}
};
virtual bool processXml(PxInputData& buff, bool streamFromMemory = false) = 0;
virtual const char* getError(int32_t& lineno) = 0; // report the reason for a parsing error, and the line number
// where it occurred.
FastXml()
{
}
virtual void release(void) = 0;
protected:
virtual ~FastXml()
{
}
};
FastXml* createFastXml(FastXml::Callback* iface);
} // shdfnd
} // physx
#endif // PSFASTXML_PSFASTXML_H