[LAD] Whitespaces in jack client/port names / jack_connect

[Philipp Überbacher]

Excerpts from drew Roberts's message of 2010-08-27 01:56:15 +0200:
> On Thursday 26 August 2010 19:34:04 Philipp wrote:
> > Hi,
> > I have issues with jack client names that contain whitespaces.
> > Example:
> >
> > $ jack_connect MPlayer [19079]:out_0 system:playback_2
> > ERROR [19079]:out_0 not a valid port
> >
> > Any idea how I can make this work? I tried:
> >
> > $ jack_connect "MPlayer [19079]:out_0" "system:playback_2"
> > ERROR MPlayer [19079]:out_0 not a valid port
> >
> > $ jack_connect 'MPlayer [19079]:out_0' 'system:playback_2'
> > ERROR MPlayer [19079]:out_0 not a valid port
> >
> > So I wonder whether spaces in jack client names and ports are even
> > allowed, since imho jack_connect is a rather fundamental tool, and
> > either the tool or those clients are broken.
> 
> Do you need to escape the space?
> 
> http://digitaldub.wordpress.com/2009/12/16/linux-audio-session-scripting/
> 
> "The backslash in the string USB\ Device:1 is an escape character. When 
> interpreted on execution, the character following the escape character (here 
> whitespace, wich happened to be part of the device name listed by aconnect) 
> will loose its special function as a seperator. An other option would be to 
> use quoting and write
> 
> aconnect 'USB Device':1 aeolus:0
> 
> Read more about quoting here if you want."
> 
> all the best,
> 
> drew

Thanks!

Both variants work:
jack_connect MPlayer\ [5818]:out_0 system:playback_1
jack_connect 'MPlayer [5818]':out_0 system:playback_2

But what a pain..
-- 
Philipp

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