textinputstream.h

来自「这是VCF框架的代码」· C头文件 代码 · 共 158 行

#ifndef _VCF_TEXTINPUTSTREAM_H__
#define _VCF_TEXTINPUTSTREAM_H__
//TextInputStream.h

/*
Copyright 2000-2004 The VCF Project.
Please see License.txt in the top level directory
where you installed the VCF.
*/


#if _MSC_VER > 1000
#   pragma once
#endif


namespace VCF
{

/**
*TextInputStream is used for interpreting data from another stream as text.
*This assumes the data in the stream was originally written as text. For example,
*a FileStream that has been used to write a binary file, and is then passed into
*a new instance of TextInputStream to read the same file, will cause unpredicatable
*results in the decoding of the stream, since the TextInputStream is taking advantage of
*certain layout assumptions in how the source stream is organized.
*So consider yourself warned !
*/
class FOUNDATIONKIT_API TextInputStream : public InputStream
{
public:
	TextInputStream( InputStream* inStream );

	virtual ~TextInputStream();

	virtual void seek(const unsigned long& offset, const SeekType& offsetFrom);

	virtual unsigned long getSize();

	virtual char* getBuffer();

	virtual unsigned long read( unsigned char* bytesToRead, unsigned long sizeOfBytes );

	/**
	*all numbers are written out as the number converted to text, followed by a
	*space character ( ' ' ), so the value 2 becomes "2 "
	*/

	virtual void read( short& val );

	virtual void read( long& val );

	virtual void read( int& val );

	virtual void read( bool& val );

	virtual void read( float& val );

	virtual void read( double& val );

	virtual void read( String& val );

	void init();

	void readLine( String& line );

	virtual bool isEOS()
	{
		return totCharRead_ >= size_? true:false;
	}

	virtual ulong32 getCurrentSeekPos() ;
private:
	InputStream* inStream_;
	unsigned long size_;
	unsigned long totCharRead_;
	String readTillWhiteSpace();

	/**
	*reads to the starting point of the token and then accumalates anything in the buffer
	*till the next occurence of the token
	*@return String the accumalted text
	*/
	String readTillTokenPair( const char& token );
};


};


/**
*CVS Log info
*$Log$
*Revision 1.3  2006/04/07 02:35:35  ddiego
*initial checkin of merge from 0.6.9 dev branch.
*
*Revision 1.2.6.1  2005/09/21 02:21:53  ddiego
*started to integrate jpeg support directly into graphicskit.
*
*Revision 1.2  2004/08/07 02:49:15  ddiego
*merged in the devmain-0-6-5 branch to stable
*
*Revision 1.1.2.3  2004/06/06 07:05:33  marcelloptr
*changed macros, text reformatting, copyright sections
*
*Revision 1.1.2.2  2004/04/29 04:07:13  marcelloptr
*reformatting of source files: macros and csvlog and copyright sections
*
*Revision 1.1.2.1  2004/04/28 03:29:40  ddiego
*migration towards new directory structure
*
*Revision 1.9.4.1  2004/04/26 21:58:45  marcelloptr
*changes for dir reorganization: _VCF_MACRO_H__
*
*Revision 1.9  2003/12/18 05:15:59  ddiego
*merge from devmain-0-6-2 branch into the stable branch
*
*Revision 1.8.4.1  2003/10/23 04:24:51  ddiego
*more musical chairs with headers again, in yet another attempt to make
*them more efficent to speed up compiles.
*Removed all teh template RTTI classes and put them all in one header
*called VCFRTTIImpl.h. This should help compile speeds a bit.
*The next step is to look at some of the event classes and remove ones
*that aren't really neccessary - I'd estimate that 50% of the current
*event classes are unneccessary and can be removed.
*
*Revision 1.8  2003/05/17 20:37:15  ddiego
*this is the checkin for the 0.6.1 release - represents the merge over from
*the devmain-0-6-0 branch plus a few minor bug fixes
*
*Revision 1.7.22.2  2003/03/23 03:23:52  marcelloptr
*3 empty lines at the end of the files
*
*Revision 1.7.22.1  2003/03/12 03:11:46  ddiego
*switched all member variable that used the "m_"<name> prefix to
* <name>"_" suffix nameing standard.
*Also changed all vcf builder files to accomadate this.
*Changes were made to the Stream classes to NOT multiple inheritance and to
*be a little more correct. Changes include breaking the FileStream into two
*distinct classes, one for input and one for output.
*
*Revision 1.7  2002/02/28 01:07:09  ddiego
*fixed bug [ 523259 ] InputStream::read(String&) is incorrect
*added new virtual function Stream::getCurrentSeekPos to help fix the problem.
*Made apropriate changes to all stream headers and implementation to account
*for thisd
*
*Revision 1.6  2002/01/24 01:46:48  ddiego
*added a cvs "log" comment to the top of all files in vcf/src and vcf/include
*to facilitate change tracking
*
*/


#endif // _VCF_TEXTINPUTSTREAM_H__