PECengine/Parser2/SrcXmlParser/CPEngParserStack.cpp
changeset 0 094583676ce7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PECengine/Parser2/SrcXmlParser/CPEngParserStack.cpp	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,139 @@
+/*
+* Copyright (c) 2004 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:  Stack to hold the data start and end markers
+*
+*/
+
+// INCLUDE FILES
+#include "CPEngParserStack.h"
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CPEngParserStack::CPEngParserStack
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CPEngParserStack::CPEngParserStack()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CPEngParserStack::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CPEngParserStack* CPEngParserStack::NewL()
+    {
+    CPEngParserStack* self = new( ELeave ) CPEngParserStack;
+    return self;
+    }
+
+
+// Destructor
+CPEngParserStack::~CPEngParserStack()
+    {
+    iStartArray.Reset();
+    iEndArray.Reset();
+    }
+
+
+// -----------------------------------------------------------------------------
+// CPEngParserStack::PushStartL
+// Pushes a start element to the stack
+// -----------------------------------------------------------------------------
+//
+TInt CPEngParserStack::PushStart( TUint aItem )
+    {
+    return iStartArray.Append( aItem );
+    }
+
+// -----------------------------------------------------------------------------
+// CPEngParserStack::PushEndL
+// Pushes an end element to the stack
+// -----------------------------------------------------------------------------
+//
+TInt CPEngParserStack::PushEnd( TUint aItem )
+    {
+    return iEndArray.Append( aItem );
+    }
+
+// ---------------------------------------------------------
+// CPEngParserStack::PopStart
+// Pops a start element from the stack
+// ---------------------------------------------------------
+//
+TUint CPEngParserStack::PopStart()
+    {
+    TUint pos( iStartArray.Count() - 1 ); // take the last one
+    TUint returnable( iStartArray[pos] );
+
+    iStartArray.Remove( pos );
+
+    return returnable;
+    }
+
+// ---------------------------------------------------------
+// CPEngParserStack::PopEnd
+// Pops an end element from the stack
+// ---------------------------------------------------------
+//
+TUint CPEngParserStack::PopEnd()
+    {
+    TUint pos( iEndArray.Count() - 1 ); // take the last one
+    TUint returnable( iEndArray[pos] );
+
+    iEndArray.Remove( pos );
+
+    return returnable;
+    }
+
+// ---------------------------------------------------------
+// CPEngParserStack::Pop
+// Pops the start&end markers pair from the stack.
+// ---------------------------------------------------------
+//
+TPoint CPEngParserStack::Pop()
+    {
+    TPoint returnablePoint;
+
+    if ( ( iStartArray.Count() > 0 ) &&
+         ( iEndArray.Count() > 0 ) )
+        {
+        returnablePoint.iX = PopStart();
+        returnablePoint.iY = PopEnd();
+        }
+    else    // something wrong with the array, set negative values
+        {   // shouldn't happen, because the WV engine checks the XML
+        returnablePoint.iX = KErrCorrupt;
+        returnablePoint.iY = KErrCorrupt;
+        }
+
+    return returnablePoint;
+    }
+
+// ---------------------------------------------------------
+// CPEngParserStack::Reset
+// Resets the element arrays
+// ---------------------------------------------------------
+//
+void CPEngParserStack::Reset()
+    {
+    iEndArray.Reset();
+    iStartArray.Reset();
+    }
+
+//  End of File