/*

 * 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

        {

        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;

    }