1 /*

     2 * Copyright (c) 2001-2008 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 #include "cfileparser.h"

    19 

    20 #include <S32FILE.H>

    21 #include <VERSIT.H> 

    22 

    23 

    24 CFileParser::CFileParser()

    25     {

    26    

    27     }

    28 

    29 CFileParser::~CFileParser()

    30     {

    31     iFileServ.Close();    

    32     

    33     }

    34 

    35 CFileParser* CFileParser::NewLC()

    36     {

    37     CFileParser* self = new (ELeave) CFileParser();

    38     CleanupStack::PushL(self);

    39     self->ConstructL();

    40     return self;

    41     }

    42 

    43 CFileParser* CFileParser::NewL()

    44     {

    45     CFileParser* self = CFileParser::NewLC();

    46     CleanupStack::Pop(); // self;

    47     return self;

    48     }

    49 

    50 void CFileParser::ConstructL()

    51     {

    52     iFileServ.Connect();

    53     iStart = false;

    54     SetMediaType(CFileParser::ENone);   //no  specific folder

    55     

    56     }

    57 

    58 void CFileParser::SetMediaType(TMediaType aType)

    59     {

    60     iCurMediaType = aType;

    61     }

    62     

    63 CFileParser::TMediaType CFileParser::GetMediaType()

    64     {

    65     return iCurMediaType;

    66     }

    67 

    68 /*

    69  * aFileName - is the file to be parsed

    70  * this contain the text in the form

    71  * [photos]

    72  * --

    73  * --

    74  * [/photos]

    75  * [music]

    76  * --

    77  * --[/music]

    78  * [videos]

    79  * ---

    80  * --

    81  * [/videos]

    82  * ParseFile function takes such a file & parses the sections

    83  * and writes the photo filename to aPhotoFile,

    84  * music file names to aMusicFile &

    85  * video file names to aVideoFile

    86  * 

    87  */

    88 

    89 

    90 void CFileParser::ParseFile( const TDesC& aFileName,const TDesC& aPhotoFile,const TDesC& aMusicFile,const TDesC& aVideoFile )

    91     {

    92     TFileText lineReader;

    93     TFileName name;

    94     RBuf8 fileName;

    95     RFile photoFile, musicFile, videoFile;

    96     

    97     //declare the start & end tags

    98     _LIT(KPhotoStart,"[photos]");

    99     _LIT(KMusicStart,"[music]");

   100     _LIT(KVideoStart,"[videos]");

   101     _LIT(KPhotoEnd,"[/photos]");

   102     _LIT(KMusicEnd,"[/music]");

   103     _LIT(KVideoEnd,"[/videos]");

   104     

   105     _LIT(KStartTag,"[%s]");

   106     _LIT(KEndTag,"[/%s]");

   107     

   108     TBuf<KMaxFileName> buf;

   109     name.Copy(aFileName);

   110     RFileReadStream readStream;

   111     readStream.PushL();

   112 

   113     User::LeaveIfError(readStream.Open(iFileServ, name, EFileRead));

   114     CLineReader* myReader = CLineReader::NewL(readStream);

   115     TInt aPos = 0;

   116     TInt aErr = 0;

   117     

   118     photoFile.Replace(iFileServ,aPhotoFile,EFileWrite);

   119     musicFile.Replace(iFileServ,aMusicFile,EFileWrite);

   120     videoFile.Replace(iFileServ,aVideoFile,EFileWrite);

   121     

   122     while(aErr!=KErrEof)

   123        {

   124           myReader->ReadLineL(aPos, aErr);

   125         // Do your parsing here ..          

   126           fileName.CreateL(KMaxFileName);

   127           buf.Copy(myReader->iBufPtr);          

   128           //compare buf with the start & end tags

   129           //if it is the start or end tag, dont write to the file          

   130           if( buf.Compare(KPhotoStart)== 0){  //photo tag start

   131               SetMediaType(CFileParser::EPhotos); 

   132               iStart = true;

   133           }

   134           else if( buf.Compare(KPhotoEnd)== 0){        //photo tag end

   135               SetMediaType(CFileParser::ENone);  

   136           }

   137           else if( buf.Compare(KMusicStart)== 0 ){       //music tag start

   138               SetMediaType(CFileParser::EMusic);

   139               iStart = true;

   140           }

   141           else if( buf.Compare(KMusicEnd)== 0){

   142               SetMediaType(CFileParser::ENone);       //music tag end

   143           }

   144           else if( buf.Compare(KVideoStart)== 0 ){

   145               SetMediaType(CFileParser::EVideos);  

   146               iStart = true;//video tag start

   147           }

   148           else if( buf.Compare(KVideoEnd)== 0 ){       

   149               SetMediaType(CFileParser::ENone);       //video tag end

   150           }

   151           else 

   152               {

   153                   fileName.Copy(buf);

   154                   switch( GetMediaType() )

   155                     {

   156                       case EPhotos:

   157                           {

   158                           if(!iStart){

   159                               photoFile.Write(_L8("\n"));

   160                           }

   161                           else {

   162                               iStart = false;

   163                           }

   164                           photoFile.Write(fileName);

   165                           }            

   166                               break;

   167                       case EMusic:

   168                           {

   169                           if(!iStart){

   170                               musicFile.Write(_L8("\n"));

   171                           }

   172                           else {

   173                               iStart = false;

   174                           }

   175                           musicFile.Write(fileName);

   176                           }

   177                               break;

   178                       case EVideos:

   179                           {

   180                           if(!iStart){

   181                               videoFile.Write(_L8("\n"));

   182                           }

   183                           else {

   184                                iStart = false;

   185                            }

   186                           videoFile.Write(fileName);

   187                           }

   188                               break;

   189                       default:

   190                               break;

   191                     }

   192               }

   193           

   194        }

   195     //close all file handles

   196     photoFile.Close();

   197     musicFile.Close();

   198     videoFile.Close();

   199     //close the filename rbuf

   200     fileName.Close();

   201     CleanupStack::PopAndDestroy();    

   202     delete myReader;

   203     }