Re: Problem using cdrtools for iso contents display with MC

[Paul Hartman <paul hartman+gentoo gmail com>]

On Thu, Sep 23, 2010 at 3:35 PM, Paul Marwick <paul marwick gmail com> wrote:
> Paul Hartman wrote:
> > On Sun, Sep 19, 2010 at 5:29 PM, Paul Marwick<paul marwick gmail com>
> >  wrote:
> >
> > > I've recently hit a problem trying to read iso files with MC. Looking at
> > > /etc/mc/mc.ext, viewing iso contents is handled by this code:
> > >
> > > # ISO9660
> > > regex/\.([iI][sS][oO])$
> > >        Open=%cd %p#iso9660
> > >        View=%view{ascii} isoinfo -l -i %f
> > >
> > > I'm not sure if this is a recent version, but under Salix, isoinfo is
> > > provided by cdrtools-2.01.01a78 (a Slackware package). Using this, a
> > > number
> > > of iso files give a series of parsing errors, followed by a double
> > > message
> > > setting UTF.8 to match locale settings. After these messages are passed,
> > > an
> > > empty directory is shown - nothing of the contents of the iso is
> > > displayed.
> >
> > I'm using mc 4.7.4 with cdrtools 3.00 and have similar parsing errors,
> > but not UTF error. This happens only on some ISO files.
>
> Sounds like the same error. What is your LANG variable set to? Mine is
> en_GB.utf8, which is probably the reason for the utf8 error.  Only happens
> on some iso files.

My LANG=en_US

I just did this experiment: I saved a copy of the isoinfo output from
cdrools 3.00 then removed it and installed cdrkit-1.1.10 and ran the
same commands. Comparing the output, it seems the cdrkit file size
"column" in the output is 6 characters wider than the cdrtools
version.  Like you, MC is happy with cdrkit and can view the files
normally.

When I strip whitespace and compare the files produced by the 2
programs, they are identical, md5sum matches. So it seems the column
width from cdrtools isoinfo may be the reason.

Maybe some regexp guru can fix up the patterns in extfs.d/iso9660 so
that they work with both versions of isoinfo?