This concrete class implements the Encoder API where the Output destination is a Cpl::Io::Output stream. More...

Detailed Description

This concrete class implements the Encoder API where the Output destination is a Cpl::Io::Output stream.

There is no checking/enforcement of the content of the Frame (e.g. it will accept non-ASCII character) except for the SOF, EOF, and ESC characters.

#include <StreamEncoder.h>

Inheritance diagram for Cpl::Text::Frame::StreamEncoder:

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Collaboration diagram for Cpl::Text::Frame::StreamEncoder:

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Public Member Functions
	StreamEncoder (Cpl::Io::Output *dstPtr, char startOfFrame, char endOfFrame, char escapeChar, bool appendNewline=true)
	Constructor.

void	setOutput (Cpl::Io::Output &newOutfd) noexcept
	Allow the consumer to change/Set the Output stream handle. Note: No guarantees on what happens if this method is called in the 'middle of a frame'.

Public Member Functions inherited from Cpl::Text::Frame::Encoder_
bool	startFrame (void) noexcept
	See Cpl::Text::Frame::Encoder.

bool	output (char src) noexcept
	See Cpl::Text::Frame::Encoder.

bool	output (const char *src) noexcept
	See Cpl::Text::Frame::Encoder.

bool	output (const char *src, size_t numBytes) noexcept
	See Cpl::Text::Frame::Encoder.

bool	endFrame (void) noexcept
	See Cpl::Text::Frame::Encoder.

Public Member Functions inherited from Cpl::Text::Frame::Encoder
virtual	~Encoder ()
	Virtual Destructor.

Protected Member Functions
bool	start (char src) noexcept
	See Cpl::Text::Frame::Encoder_.

bool	start () noexcept
	See Cpl::Text::Frame::Encoder_.

bool	append (char src) noexcept
	See Cpl::Text::Frame::Encoder_.

Protected Member Functions inherited from Cpl::Text::Frame::Encoder_
	Encoder_ (char startOfFrame, char endOfFrame, char escapeChar, bool appendNewline=true)
	Constructor.

virtual char	encodeChar (char charToBeEscaped)
	Returns the encoded/escaped value for the specified special character.

Protected Attributes
Cpl::Io::Output *	m_dstPtr
	Output stream.

Protected Attributes inherited from Cpl::Text::Frame::Encoder_
bool	m_inFrame
	Output/Frame state.

const char	m_sof
	SOF character.

const char	m_eof
	EOF character.

const char	m_esc
	Escape character.

const bool	m_appendNewline
	Remember my newline option.

Constructor & Destructor Documentation

◆ StreamEncoder()

Cpl::Text::Frame::StreamEncoder::StreamEncoder	(	Cpl::Io::Output *	dstPtr,
		char	startOfFrame,
		char	endOfFrame,
		char	escapeChar,
		bool	appendNewline = true )

Constructor.

The Output Stream is not required to be specified at construction time (i.e. 'dstPtr' can be zero). However, the encoder must have a valid Output Stream handle BEFORE the start() method is called. When 'appendNewline' argument is set to true - encoder will append a newline character to the output stream AFTER the EOF character (this can make for more human readable output stream).

NOTE: If 'startOfFrame' is '\0', then Encoder will begin the frame WITHOUT inserting a SOF character. This is useful when there application desires/has multiple start-of-frame characters for a given frame.