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// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine" and the "irrXML" project.
// For conditions of distribution and use, see copyright notice in irrlicht.h and/or irrXML.h
#include "irrXML.h"
#include "irrString.h"
#include "irrArray.h"
#include "fast_atof.h"
#include "CXMLReaderImpl.h"
namespace irr
{
namespace io
{
//! Implementation of the file read callback for ordinary files
class CFileReadCallBack : public IFileReadCallBack
{
public:
//! construct from filename
CFileReadCallBack(const char* filename)
: File(0), Size(-1), Close(true)
{
// open file
File = fopen(filename, "rb");
if (File)
getFileSize();
}
//! construct from FILE pointer
CFileReadCallBack(FILE* file)
: File(file), Size(-1), Close(false)
{
if (File)
getFileSize();
}
//! destructor
virtual ~CFileReadCallBack()
{
if (Close && File)
fclose(File);
}
//! Reads an amount of bytes from the file.
virtual int read(void* buffer, int sizeToRead)
{
if (!File)
return 0;
return (int)fread(buffer, 1, sizeToRead, File);
}
//! Returns size of file in bytes
virtual long getSize() const
{
return Size;
}
private:
//! retrieves the file size of the open file
void getFileSize()
{
fseek(File, 0, SEEK_END);
Size = ftell(File);
fseek(File, 0, SEEK_SET);
}
FILE* File;
long Size;
bool Close;
}; // end class CFileReadCallBack
// FACTORY FUNCTIONS:
//! Creates an instance of an UFT-8 or ASCII character xml parser.
IRRLICHT_API IrrXMLReader* IRRCALLCONV createIrrXMLReader(const char* filename)
{
return createIrrXMLReader(new CFileReadCallBack(filename), true);
}
//! Creates an instance of an UFT-8 or ASCII character xml parser.
IRRLICHT_API IrrXMLReader* IRRCALLCONV createIrrXMLReader(FILE* file)
{
return createIrrXMLReader(new CFileReadCallBack(file), true);
}
//! Creates an instance of an UFT-8 or ASCII character xml parser.
IRRLICHT_API IrrXMLReader* IRRCALLCONV createIrrXMLReader(IFileReadCallBack* callback,
bool deleteCallback)
{
if (callback && (callback->getSize() >= 0))
{
return new CXMLReaderImpl<char, IXMLBase>(callback, deleteCallback);
}
else
{
if(callback && deleteCallback)
delete callback;
return 0;
}
}
//! Creates an instance of an UTF-16 xml parser.
IRRLICHT_API IrrXMLReaderUTF16* IRRCALLCONV createIrrXMLReaderUTF16(const char* filename)
{
return createIrrXMLReaderUTF16(new CFileReadCallBack(filename), true);
}
//! Creates an instance of an UTF-16 xml parser.
IRRLICHT_API IrrXMLReaderUTF16* IRRCALLCONV createIrrXMLReaderUTF16(FILE* file)
{
return createIrrXMLReaderUTF16(new CFileReadCallBack(file), true);
}
//! Creates an instance of an UTF-16 xml parser.
IRRLICHT_API IrrXMLReaderUTF16* IRRCALLCONV createIrrXMLReaderUTF16(IFileReadCallBack* callback,
bool deleteCallback)
{
if (callback && (callback->getSize() >= 0))
{
return new CXMLReaderImpl<char16, IXMLBase>(callback, deleteCallback);
}
else
{
if(callback && deleteCallback)
delete callback;
return 0;
}
}
//! Creates an instance of an UTF-32 xml parser.
IRRLICHT_API IrrXMLReaderUTF32* IRRCALLCONV createIrrXMLReaderUTF32(const char* filename)
{
return createIrrXMLReaderUTF32(new CFileReadCallBack(filename), true);
}
//! Creates an instance of an UTF-32 xml parser.
IRRLICHT_API IrrXMLReaderUTF32* IRRCALLCONV createIrrXMLReaderUTF32(FILE* file)
{
return createIrrXMLReaderUTF32(new CFileReadCallBack(file), true);
}
//! Creates an instance of an UTF-32 xml parser.
IRRLICHT_API IrrXMLReaderUTF32* IRRCALLCONV createIrrXMLReaderUTF32(
IFileReadCallBack* callback, bool deleteCallback)
{
if (callback && (callback->getSize() >= 0))
{
return new CXMLReaderImpl<char32, IXMLBase>(callback, deleteCallback);
}
else
{
if(callback && deleteCallback)
delete callback;
return 0;
}
}
} // end namespace io
} // end namespace irr
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