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QDirModel and filenames with spaces

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tillias

Trainee

  • "tillias" started this thread

Posts: 60

Location: Russian Federation, Voronezh

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1

Thursday, April 26th 2007, 5:59am

QDirModel and filenames with spaces

Hi!

My QProcess doesn't run command if it contains spaces in filenames.
E.g. if I run such a line from command line ( bash or sh ):
$mplayer dvd://1 -dvd-device /mnt/work/video/torrents/HQ/Film\ 1\ 2\ 3
it works.
But if I run exactly the same line from QProcess -- it doesn't work:

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QProcess my_process;
my_process.start(QString(mlayer dvd://1 -dvd-device /mnt/work/video/torrents/HQ/Film\ 1\ 2\ 3));


Here we go:

1. extract filename from QTreeView ( QDirModel ):

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QModelIndex cur_index = directory_browser->currentIndex();
QString dvd_dir_name = directories->filePath( cur_index )


dvd_dir_name == "dir 1 2 3" ( for example )

2. replace all spaces with '\ ' construction:

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dvd_dir_name.replace( QRegExp( " " ), "\\ " );


dvd_dir_name == "dir\ 1\ 2\ 3"

3. Prepare command line:

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QString command_line = "some_process";
     command_line += dvd_dir_name;


command_line == "some_process dir\ 1\ 2\ 3"

4. Finally run process with command_line:

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QProcess mplayer_process;
mplayer_process.start( command_line);


On my Linux machine QProcess runs such a command:

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$mplayer dvd://1 -dvd-device /mnt/work/video/torrents/HQ/Film\ 1\ 2\ 3


The problem is if I run mplayer from QProcess -- it fails, but if I run exactly the same command from bash or sh it works fine...
What may it be with QProcess and spaces in dir filename?

P.S. here is log for mplayer:

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Playing dvd://1.


Playing 1\.


Playing 2\.


Playing 3.
God bless you!

Junior

Professional

  • "Junior" is male

Posts: 1,613

Location: San Antonio, TX USA

Occupation: Senior Secure Systems Engineer

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2

Thursday, April 26th 2007, 1:38pm

RE: QDirModel and filenames with spaces

tillias,

Use the QProcess start( program, args ) instead of the start(program).

Something like:


QString program = "mplayer";
QStringList args;
args << "dvd://1";
args << "-dev-device";
args << etc......

my_process.start( program, args );

....


Hope this helps.

Junior