EmBdecode Class Reference

Decoder class, needs an external buffer to collect the incoming data. More...

#include <EmBencode.h>

Public Types
enum	{   T_STRING = 0, T_NUMBER = 251, T_DICT, T_LIST,   T_POP, T_END }
	Types of tokens, as returned by nextToken().

Public Member Functions
	EmBdecode (char *buf, uint8_t len)
	Initialize a decoder instance with the specified buffer space. More...
uint8_t	reset ()
	Reset the decoder - can be called to prepare for a new round of decoding.
uint8_t	process (char ch)
	Process a single incoming caharacter. More...
uint8_t	nextToken ()
	Call this after process() is done, to extract each of the data tokens. More...
const char *	asString (uint8_t *plen=0)
	Extract the last token as string (works for T_STRING and T_NUMBER). More...
long	asNumber ()
	Extract the last token as number (also works for strings if numeric). More...

Protected Member Functions
void	AddToBuf (char ch)

Protected Attributes
char	level
char *	bufPtr
uint8_t	bufLen
uint8_t	count
uint8_t	next
uint8_t	last
uint8_t	state

Detailed Description

Decoder class, needs an external buffer to collect the incoming data.

Constructor & Destructor Documentation

EmBdecode::EmBdecode ( char *  buf, uint8_t  len  )

inline

Initialize a decoder instance with the specified buffer space.

Parameters

buf	Pointer to the buffer which will be used by the decoder.
len	Size of the buffer, must be in the range 50 to 255.

Member Function Documentation

long EmBdecode::asNumber

(

)

Extract the last token as number (also works for strings if numeric).

Returns

Returns the decoded integer, max 32-bit signed in this version.

const char * EmBdecode::asString

(

uint8_t *

plen = 0

)

Extract the last token as string (works for T_STRING and T_NUMBER).

Parameters

plen	This variable will receive the size, if present.

Returns

Returns pointer to a zero-terminated string in the decode buffer.

uint8_t EmBdecode::nextToken

(

)

Call this after process() is done, to extract each of the data tokens.

Returns

Returns one of the T_STRING .. T_END enumeration codes.

uint8_t EmBdecode::process

(

char

ch

)

Process a single incoming caharacter.

Returns

Returns a count > 0 when the buffer contains a complete packet.

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

• EmBencode.h
• EmBencode.cpp