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Re: New virtual package x-image-viewer?

On Wed, Jul 08, 2009 at 11:45:27AM -0700, Steve Langasek wrote:
> On Wed, Jul 08, 2009 at 08:00:26PM +0200, Jan Hauke Rahm wrote:
> > On Wed, Jul 08, 2009 at 07:55:59PM +0200, Jakub Wilk wrote:
> > > * Jan Hauke Rahm <info@jhr-online.de>, 2009-07-08, 19:36:
> > > >I'd like to have a new virtual package 'x-image-viewer'. All packages
> > > >providing that virtual package should be able to view images in common
> > > >formats (png, jpeg etc.). I'm thinking but that's pretty much all I can
> > > >say... It's obvious that I would want all image viewers to provide that
> > > >virtual package then.
> > > And such a package is needed because...?
> > ...I'm working on a QA upload of xcftools which recommends basically all
> > x-image-viewers. It contains a program that is a wrapper script that
> > flattens an XCF image and displays it using an external PNG/PPM viewer.
> > I thought there might be more cases out there and thus started this
> > thread. If you all scream no, I'm fine with that, too. Just tell me :-P
> How does xcftools actually invoke the external viewer?  Does it have a long
> list of commands to try?


egrep '^image/(png|x-portable-pixmap)\s*;\s*((\S*).*?)\s*($|;.*)' /etc/mailcap

> A virtual package only makes sense if it will also provide a standard
> interface that other packages will invoke.

It doesn't have such, it just chooses one out the list provided by the
command above (it's actually perl but anyways).


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