// Copyright (c) 2004-2009 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:

// TSqlParser2 class. "DBMS Security" related - full support.

// 

//

#include "UQ_STD.H"

/**

This method is used to extract the table name from a particular sql

string - aTableName parameter. Also, the function determines the sql string type -

Sql::EDDL, Sql::EDML or Sql::ENone (SELECT sql string).

*/

void TSqlParser2::ParseL(const TDesC& aSql)

	{

	TSqlParser sqlParser(aSql);

	iStatementType = sqlParser.Type();

	iTableName.Set(NULL, 0);

	switch(iStatementType)

		{

		case Sql::ENone: 

			//It may be a "SELECT" statement. Check the sql and get the table name.

			if(sqlParser.ParseL(ESqlKeyword_select) == ESqlAsterisk)

				{

				sqlParser.NextToken();

				}

			else

				{

				for(;;)

					{

					TSqlTokenType t = sqlParser.NextToken();

					if(t != ESqlComma)

						break;

					sqlParser.NextToken();

					}

				}

			sqlParser.ParseL(ESqlKeyword_from);

			sqlParser.IdentifierL(iTableName);

			break;

		case Sql::EDDL:

			//CREATE/DROP/ALTER statement. There is a table name, but we do not need it.

			//The caller has to have "SCHEMA" access level, so we do not bother with the table name.

			break;

		case Sql::EDML:

			//INSERT/UPDATE/DELETE statement. Get the table name.

			if(sqlParser.Parse(ESqlKeyword_insert))

				{

				sqlParser.ParseL(ESqlKeyword_into);

				}

			else if(sqlParser.Parse(ESqlKeyword_update))

				{

				}

			else 

				{

				sqlParser.ParseL(ESqlKeyword_delete);

				sqlParser.ParseL(ESqlKeyword_from);

				}

			sqlParser.IdentifierL(iTableName);

			break;

		default:

			__ASSERT(EFalse);

			break;

		}

	}