Re: "Text is read-only"... except it isn't... or shouldn't be

[Eli Zaretskii]

> Date: Tue, 14 May 2013 16:39:59 -0400
> From: ken <gebser@mousecar.com>
> CC: help-gnu-emacs@gnu.org
> 
> On 05/14/2013 09:39 AM Eli Zaretskii wrote:
> >> Date: Tue, 14 May 2013 08:22:00 -0400
> >> From: ken <gebser@mousecar.com>
> >> CC: Eli Zaretskii <eliz@gnu.org>, help-gnu-emacs@gnu.org
> >>
> >> [...] overly simplistic strategy for determining a file type merely
> >> by looking at the filename extension, especially when this can be
> >> more suitably and accurately and intelligently accomplished by
> >> determining a file's magic number as the Linux "file" utility does.
> >
> > Emacs does look at the magic signature, see magic-mode-alist.
> >
> 
> They why didn't it see that my file was (obviously) a text file and not 
> an image file?

I have no idea, and won't have one, unless you disclose the name of
that file.