/*

* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

* Name          : SIPSyntaxCheck.h

* Part of       : Codec

* Parsing utilities class 

* Version       : SIP/4.0 

*

*/

/**

 @internalComponent

*/

#ifndef SIPSYNTAXCHECK_H

#define SIPSYNTAXCHECK_H

#include "siphostport.h"

#include <e32std.h>

// Parsing utilities class

class SIPSyntaxCheck

	{

public:

	static TBool AlphaMaxSize8 (const TDesC8& aValue);

	static TBool Host (const TDesC8& aValue);

	static TBool Word (const TDesC8& aValue);

	static TBool User (const TDesC8& aUser);

	static TBool Password (const TDesC8& aPassword);

	static TBool StartsAndEndsWithQuotes (const TDesC8& aValue);

	static TBool QuotedString (const TDesC8& aValue);

	static TBool QuotedStringValue (const TDesC8& aValue, 

	                                const TChar& aExtraChr = 0);

	static TBool SIPVersion (const TDesC8& aValue);

	static TBool ReasonPhrase (const TDesC8& aValue);

	static TBool UInt (const TDesC8& aValue);

	static TBool UInt (const TDesC8& aValue, TUint& aResult);

	static TBool Real (const TDesC8& aValue);

	static TBool Real (const TDesC8& aValue, TReal& aResult);

	static TBool GenericParamValue (const TDesC8& aValue);

	static TBool QValue (const TDesC8& aValue);

	static TBool TtlValue (const TDesC8& aValue);

	static TBool HexValue (const TDesC8& aValue, TInt aLength=-1);

	static TBool ExtensionHeaderValue (const TDesC8& aValue);

	static TBool QuotedTokenWithComma (const TDesC8& aValue);

    static TInt HostType (const TDesC8& aHost, CSIPHostPort::TType& aHostType);

    static TBool Comment(const TDesC8& aComment);

    static TBool FeatureValue(const TDesC8& aValue);

    static TBool Base64Encoded(const TDesC8& aValue);

private:

	static TBool SkipAndCheckEscaped (TLex8& aLex);

	static TBool SkipAndCheckNonAscii (const TChar& aChr, TLex8& aLex);

	static TBool SkipAndCheckContChars (TLex8& aLex, TInt aCount);

	static TBool ValidHostName(const TDesC8& aHost);

	static TBool NextHostLabelOk(TLex8& aLex, TPtrC8& aLabel);

private: // For testing purposes

	UNIT_TEST(CSIPSyntaxCheckTest)

	};

#endif // SIPSYNTAXCHECK_H

// End of File