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CElementParser Class Reference

class CElementParser : public CBase

Parser for SDP attribute values.

The class parses an input buffer containing an attribute value into its constituent data elements. It calls an MSdpElementBuilder object each time a data element is decoded.

This parser can parse incrementally, and be fed new data as it arrives.

MSdpElementBuilder

Inherits from

CElementParser
- CBase

Nested Classes and Structures

CElementParser::CLinearBuf

Public Member Functions
	~CElementParser ()
IMPORT_C TBool	BufferedParseL (const TDesC8 &)
IMPORT_C MSdpElementBuilder *	Builder ()
IMPORT_C CElementParser *	NewL ( MSdpElementBuilder *)
IMPORT_C TInt	ParseElementsL (const TDesC8 &)
IMPORT_C void	Reset ()
IMPORT_C void	Reset ( MSdpElementBuilder *)
IMPORT_C void	SetBuilder ( MSdpElementBuilder *)

Private Member Functions
	CElementParser ( MSdpElementBuilder *)
void	CloseListsL ()
void	ConstructL ()
TBool	IsComposite ( TUint8 )

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()

Private Attributes
MSdpElementBuilder *	iBuilder
CSdpStackFix < TInt > *	iListStack
CLinearBuf *	iRemainderBuf

Constructor & Destructor Documentation

CElementParser(MSdpElementBuilder *)

CElementParser

(

MSdpElementBuilder *

aBuilder

)

[private]

Parameters

MSdpElementBuilder * aBuilder

~CElementParser()

IMPORT_C

~CElementParser

(

)

Destructor.

Member Functions Documentation

BufferedParseL(const TDesC8 &)

IMPORT_C TBool

BufferedParseL

(

const TDesC8 &

aData

)

Parse out some encoded data, with transparent buffering of unparsed data between calls.

The function stores any incompletely parsed data from a previous call, and automatically prepends to the data buffer when it is next called.

If the function leaves, the unparsed data will be deleted. This means it will not be possible to continue with this data stream; Reset() should be called before the next call to this function.

Parameters

const TDesC8 & aData

Buffer to parse

Builder()

IMPORT_C MSdpElementBuilder *

Builder

(

)

CloseListsL()

void

CloseListsL

(

)

[private]

ConstructL()

void

ConstructL

(

)

[private]

IsComposite(TUint8)

TBool

IsComposite

(

TUint8

aType

)

[private, static]

Parameters

TUint8 aType

NewL(MSdpElementBuilder *)

IMPORT_C CElementParser *

NewL

(

MSdpElementBuilder *

aBuilder

)

[static]

Allocates and constructs a new CElementParser object.

Parameters

MSdpElementBuilder * aBuilder

Object into which to build data element

ParseElementsL(const TDesC8 &)

IMPORT_C TInt

ParseElementsL

(

const TDesC8 &

aData

)

Parses a data buffer into the currently set MSdpElementBuilder interface.

If a whole number of data elements can not be parsed out of aData, the number of bytes left unparsed is returned. Those bytes should be prepended to the buffer when the function is next called.