FX::FXParseBuffer Class Reference

FXParseBuffer manages pointers to a buffer for various file format parsers. More...

#include <FXParseBuffer.h>

Inheritance diagram for FX::FXParseBuffer:

Public Types
enum	Direction { Stop = 0, Save = 1, Load = 2 }

Public Member Functions
	FXParseBuffer ()
	Initialize parse buffer to empty.
	FXParseBuffer (FXchar *buffer, FXuval sz=4096, Direction d=Load)
	Initialize parse buffer with given size and direction. More...
FXbool	open (FXchar *buffer=nullptr, FXuval sz=4096, Direction d=Load)
	Open parse buffer with given size and direction.
Direction	direction () const
	Return current direction.
FXuval	size () const
	Return current buffer size.
virtual FXival	fill (FXival count)
	Read at least count bytes into buffer; return bytes available, or -1 for error.
virtual FXival	flush (FXival count)
	Write at least count bytes from buffer; return space available, or -1 for error.
FXbool	close ()
	Close parse buffer.
virtual	~FXParseBuffer ()
	Clean up and close buffer.

Protected Member Functions
FXbool	need (FXival count)
FXbool	emit (FXchar ch, FXint count)
FXbool	emit (const FXchar *str, FXint count)

Protected Attributes
FXchar *	begptr
FXchar *	endptr
FXchar *	wptr
FXchar *	rptr
FXchar *	sptr
Direction	dir

Detailed Description

FXParseBuffer manages pointers to a buffer for various file format parsers.

It is intended to be subclassed for the particular syntax. Additional subclasses are expected to override fill() and flush() to read or write to different destinations. The default implementation works on in-memory buffer containing the entire dataset.

Member Enumeration Documentation

Direction

enum FX::FXParseBuffer::Direction

Enumerator
Save	Not active.
Load	Save to device.

Constructor & Destructor Documentation

FXParseBuffer()

FX::FXParseBuffer::FXParseBuffer	(	FXchar *	buffer,
		FXuval	sz = 4096,
		Direction	d = Load
	)

Initialize parse buffer with given size and direction.

Read pointer, scan pointer, and write pointer are set to beginning of buffer, unless direction is Load. When direction is Load, the write pointer is set to the end of the buffer.

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The documentation for this class was generated from the following file:

• /home/jeroen/FOX/fox/fox-1.7.86/include/FXParseBuffer.h