/*

* Copyright (c) 2002 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:  DM tree etc.

*

*/

#include "nsmldmuri.h"

// ------------------------------------------------------------------------------------------------

//  NSmlDmURI

// ------------------------------------------------------------------------------------------------

// ------------------------------------------------------------------------------------------------

// TPtrC8 NSmlDmURI::ParentURI(const TDesC8& aURI)

// returns parent uri, i.e. removes last uri segment

// ------------------------------------------------------------------------------------------------

TPtrC8 NSmlDmURI::ParentURI(const TDesC8& aURI)

	{

	TBool onlyOneSeg = ETrue;

	TInt i;

	for(i=aURI.Length()-1;i>=0;i--)

		{

		if(aURI[i]==KNSmlDMUriSeparator)

			{

			onlyOneSeg = EFalse;

			break;

			}

		}

	if(onlyOneSeg)

		{

		return KNSmlDmRootUri();

		}

	else

		{

		return aURI.Left(i);

		}

	}

// ------------------------------------------------------------------------------------------------

// TPtrC8 NSmlDmURI::LastURISeg(const TDesC8& aURI)

// Returns only the last uri segemnt

// ------------------------------------------------------------------------------------------------

TPtrC8 NSmlDmURI::LastURISeg(const TDesC8& aURI)

	{

	TInt i;

	for(i=aURI.Length()-1;i>=0;i--)

		{

		if(aURI[i]==KNSmlDMUriSeparator)

			{

			break;

			}

		}

	if(i==0)

		{

		return aURI;

		}

	else

		{

		return aURI.Mid(i+1);

		}

	}

// ------------------------------------------------------------------------------------------------

// TPtrC8 NSmlDmURI::RemoveDotSlash(const TDesC8& aURI)

// return uri without dot and slash in start

// ------------------------------------------------------------------------------------------------

TPtrC8 NSmlDmURI::RemoveDotSlash(const TDesC8& aURI)

	{

	TInt offset = 0;

	TInt endSlash = 0;

	if(aURI.Find(KNSmlDmUriDotSlash)==0)

		{

		offset = 2;

		}

	else if( aURI.Find(KNSmlDmUriSlash)==0)

		{

		offset = 1;

		}		

	else

		{

		return aURI;

		}

	if(aURI.Length()>2&&aURI[aURI.Length()-1]==KNSmlDMUriSeparator)

		{

		endSlash = 1;

		}

	return aURI.Mid(offset,aURI.Length()-endSlash-offset);

	}

// ------------------------------------------------------------------------------------------------

// TPtrC8 NSmlDmURI::RemoveProp(const TDesC8& aURI)

// removes property from the uri

// ------------------------------------------------------------------------------------------------

TPtrC8 NSmlDmURI::RemoveProp(const TDesC8& aURI)

	{

	TInt offset = aURI.Find(KNSmlDmQuestionMark);

	if(offset!=KErrNotFound)

		{

		return aURI.Left(offset); 

		}

	return aURI;

	}

// ------------------------------------------------------------------------------------------------

// TPtrC8 NSmlDmURI::RemoveLastSeg(const TDesC8& aURI)

// Removes last uri segment

// ------------------------------------------------------------------------------------------------

TPtrC8 NSmlDmURI::RemoveLastSeg(const TDesC8& aURI)

	{

	TInt i;

	for(i=aURI.Length()-1;i>=0;i--)

		{

		if(aURI[i]==KNSmlDMUriSeparator)

			{

			break;

			}

		}

	if(i>0)

		{

		return aURI.Left(i);

		}

	else

		{

		return KNullDesC8();

		}

	}

// ------------------------------------------------------------------------------------------------

// TPtrC8 NSmlDmURI::URISeg(const TDesC8& aURI,TInt aLocation,TInt aSegCount=1)

// Returns the aLocation:th URI segment

// ------------------------------------------------------------------------------------------------

TPtrC8 NSmlDmURI::URISeg(const TDesC8& aURI,TInt aLocation,TInt aSegCount/*=1*/)

	{

    TInt i, start;

    if(aLocation < 0)

        {

            return aURI.Mid(0, 0);

        }

    if(aLocation > 0)

        {

        for (start=0, i=0; (start<aURI.Length()) && (i<aLocation); start++)

            {

            if(aURI[start]=='/')

                {

                i++;

                }

            if(i==aLocation)

                {

                break;

                }

            }

        }

    else

        {

            start=-1;

        }

    // empty segment

    if(start+1 >= aURI.Length())

        {

        return aURI.Mid(0, 0);

        }        

    // start points to beginning of segment

    for (i=start+1; i<aURI.Length(); i++)

        {

        if(aURI[i]=='/')

            {

            aSegCount--;

            if(aSegCount == 0)

                {

                break;

                }

            }

        }

    // i points to end of segment   

    return aURI.Mid(start+1, i-start-1);

	}

// ------------------------------------------------------------------------------------------------

// TInt NSmlDmURI::NumOfURISegs(const TDesC8& aURI)

// Returns the num of uri segs

// ------------------------------------------------------------------------------------------------

TInt NSmlDmURI::NumOfURISegs(const TDesC8& aURI)

	{

	TInt numOfURISegs = 1;

	for(TInt i=0;i<aURI.Length();i++)

		{

		if(aURI[i]==KNSmlDMUriSeparator)

			{

			numOfURISegs++;

			}

		}

	return numOfURISegs;

	}