// tregexarg.h

//

// Copyright (c) 2005 - 2006, Google Inc.

// All rights reserved.

//

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are

// met:

//

//     * Redistributions of source code must retain the above copyright

// notice, this list of conditions and the following disclaimer.

//     * Redistributions in binary form must reproduce the above

// copyright notice, this list of conditions and the following disclaimer

// in the documentation and/or other materials provided with the

// distribution.

//     * Neither the name of Google Inc. nor the names of its

// contributors may be used to endorse or promote products derived from

// this software without specific prior written permission.

//

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

//

// Author: Sanjay Ghemawat

//

// Heavily refactored for Symbian OS by Accenture.

#ifndef TREGEXARG_H_

#define TREGEXARG_H_

#include <e32base.h>

class TRegExArg

	{

 public:

	 // Empty constructor so we can declare arrays of TRegExArg

	  TRegExArg();

	 // Constructor specially designed for NULL arguments

	 inline TRegExArg(TAny*);

	 typedef TBool (*Parser)(const TDesC8& aString, TAny* aDestination);

// Type-specific parsers

#define PCRE_MAKE_PARSER(type,name)															\

	inline TRegExArg(type* aType) : iArg(aType), iParser(name) { }						\

	inline TRegExArg(type* aType, Parser aParser) : iArg(aType), iParser(aParser) { }	

	PCRE_MAKE_PARSER(TChar,				ParseTChar)

	PCRE_MAKE_PARSER(TInt8,				ParseTInt8)

	PCRE_MAKE_PARSER(TInt16,			ParseTInt16)

	PCRE_MAKE_PARSER(TInt32,			ParseTInt32)

	PCRE_MAKE_PARSER(TInt64,			ParseTInt64)

	PCRE_MAKE_PARSER(TInt,				ParseTInt)

	PCRE_MAKE_PARSER(TUint8,			ParseTUint8)

	PCRE_MAKE_PARSER(TUint16,			ParseTUint16)

	PCRE_MAKE_PARSER(TUint32,			ParseTUint32)

	PCRE_MAKE_PARSER(TUint,				ParseTUint)

	PCRE_MAKE_PARSER(TReal32,			ParseTReal32)

	PCRE_MAKE_PARSER(TReal64,			ParseTReal64)

	PCRE_MAKE_PARSER(TDes8,				ParseTDes8)

	PCRE_MAKE_PARSER(TPtrC8,			ParseTPtrC8)

	#undef PCRE_MAKE_PARSER

	// Generic constructors

	template <class T> inline TRegExArg(T*, Parser aParser);

	template <class T> inline TRegExArg(T* aArg);	

	// TBuf constructors - cannot seem to nest the template parameters

	template <TInt S>

	inline TRegExArg(TBuf8<S>* aArg, Parser aParser);

	template <TInt S>

	inline TRegExArg(TBuf8<S>* aArg);

	// Parse the data

	inline TBool Parse(const TDesC8& aString) const;

private:

	TAny*         iArg;

	Parser        iParser; // Pointer to parsing function

	IMPORT_C static TBool ParseNull			(const TDesC8& aString, TAny* aDestination);

	IMPORT_C static TBool ParseTChar		(const TDesC8& aString, TAny* aDestination);

	IMPORT_C static TBool ParseTInt8		(const TDesC8& aString, TAny* aDestination);

	IMPORT_C static TBool ParseTInt16		(const TDesC8& aString, TAny* aDestination);

	IMPORT_C static TBool ParseTInt32		(const TDesC8& aString, TAny* aDestination);

	IMPORT_C static TBool ParseTInt			(const TDesC8& aString, TAny* aDestination);

	IMPORT_C static TBool ParseTReal32		(const TDesC8& aString, TAny* aDestination);

	IMPORT_C static TBool ParseTReal64		(const TDesC8& aString, TAny* aDestination); 

	IMPORT_C static TBool ParseTDes8		(const TDesC8& aString, TAny* aDestination);

	IMPORT_C static TBool ParseTDes16		(const TDesC8& aString, TAny* aDestination);

	IMPORT_C static TBool ParseTPtrC8		(const TDesC8& aString, TAny* aDestination);

#define PCRE_DECLARE_INTEGER_PARSER(name)															\

private:																							\

	IMPORT_C static TBool Parse ## name(const TDesC8& aString, TAny* aDestination);					\

	IMPORT_C static TBool Parse ## name ## Radix(													\

				const TDesC8& aString, TAny* aDestination, TRadix aRadix);							\

public:																								\

	IMPORT_C static TBool Parse ## name ## Hex(const TDesC8& aString, TAny* aDestination);			\

	IMPORT_C static TBool Parse ## name ## Octal(const TDesC8& aString, TAny* aDestination);		\

	PCRE_DECLARE_INTEGER_PARSER(TInt64)

	PCRE_DECLARE_INTEGER_PARSER(TUint8)

	PCRE_DECLARE_INTEGER_PARSER(TUint16)

	PCRE_DECLARE_INTEGER_PARSER(TUint32)

	PCRE_DECLARE_INTEGER_PARSER(TUint)	

#undef PCRE_DECLARE_INTEGER_PARSER

	};

#include "tregexarg.inl"

#endif /* TREGEXARG_H_ */