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// -*- C++ -*-
//=============================================================================
/**
* @file StrCharStream.h
*
* $Id$
*
* @author Nanbor Wang <nanbor@cs.wustl.edu>
*/
//=============================================================================
#ifndef _ACEXML_STRCHARSTREAM_H_
#define _ACEXML_STRCHARSTREAM_H_
#include /**/ "ace/pre.h"
#include "ACEXML/common/ACEXML_Export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
#pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ACEXML/common/CharStream.h"
/**
* @class ACEXML_StrCharStream StrCharStream.h "common/StrCharStream.h"
*
* An implementation of ACEXML_CharStream for reading
* input from a null-terminated ACEXML_Char string.
*/
class ACEXML_Export ACEXML_StrCharStream : public ACEXML_CharStream
{
public:
/// Default constructor.
ACEXML_StrCharStream (void);
/// Destructor
virtual ~ACEXML_StrCharStream (void);
/// Initializing StrCharStream with @a str and @a name
int open (const ACEXML_Char *str, const ACEXML_Char* name);
/**
* Returns the available ACEXML_Char in the buffer. -1
* if the object is not initialized properly.
*/
virtual int available (void);
/**
* Close this stream and release all resources used by it.
*/
virtual int close (void);
/**
* Determine the encoding of the file.
*/
virtual int determine_encoding (void);
/**
* Read the next ACEXML_Char. Return -1 if we are not able to
* return an ACEXML_Char, 0 if EOS is reached, or 1 if succeed.
*/
virtual int get (ACEXML_Char& ch);
/**
* Read the next batch of ACEXML_Char strings
*/
virtual int read (ACEXML_Char *str, size_t len);
/**
* Peek the next ACEXML_Char in the CharStream. Return the
* character if succeess, -1 if EOS is reached.
*/
virtual int peek (void);
/*
* Get the character encoding for a byte stream or URI.
*/
virtual const ACEXML_Char *getEncoding (void);
/*
* Get the systemId for the underlying CharStream
*/
virtual const ACEXML_Char* getSystemId (void);
/**
* Resets the pointer to the beginning of the stream.
*/
virtual void rewind (void);
private:
ACEXML_Char *start_;
ACEXML_Char *ptr_;
ACEXML_Char *end_;
ACEXML_Char* encoding_;
ACEXML_Char* name_;
};
#include /**/ "ace/post.h"
#endif /* _ACEXML_STRCHARSTREAM_H_ */
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