From: Tassilo Horn <tassilo@member.fsf.org>
To: Juri Linkov <juri@jurta.org>
Cc: 5102@emacsbugs.donarmstrong.com, harven <harven@free.fr>
Subject: bug#5102: 23.1; doc-view on a buffer not linked to a file
Date: Fri, 04 Dec 2009 23:43:56 +0100 [thread overview]
Message-ID: <87zl5ygy1f.fsf@thinkpad.tsdh.de> (raw)
In-Reply-To: <87bpiezfov.fsf@mail.jurta.org> (Juri Linkov's message of "Fri, 04 Dec 2009 23:50:20 +0200")
Juri Linkov <juri@jurta.org> writes:
Hi Juri,
>> There is a problem when trying to display postscript code
>> in a ps-mode buffer if the buffer is not linked to a file.
>>
>> Starting with emacs -Q,
>> - open a new buffer,
>> - insert in that buffer the content of a postscript file,
>> - start ps-mode.
>> Now if we type C-c C-c to view the postscript, we are prompted whether
>> we want to save the content of the buffer. If we answer "no", we get the error
>>
>> Wrong type argument: stringp, nil
>>
>> Message buffer reports that this was issued by doc-view-mode.
>
> With `debug-on-error' enabled it displays:
>
> Debugger entered--Lisp error: (wrong-type-argument stringp nil)
> file-readable-p(nil)
> doc-view-mode()
> doc-view-toggle-display()
> call-interactively(doc-view-toggle-display nil nil)
>
> Tassilo, please tell whether DocView is designed to work in non-file
> buffers?
No, it cannot handle non-file buffers, because ghostscript and friends
only handle input files and don't support piping in the output. So the
best we could do was to autosave to a temp directory. But that might be
wrong with respect to security issues. So I think asking the user to
save is the best we can do. Of course, an explanatory message would be
better than an error.
Bye,
Tassilo
next prev parent reply other threads:[~2009-12-04 22:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <jwv638i610l.fsf-monnier+emacsbugreports@gnu.org>
2009-12-02 12:17 ` bug#5102: 23.1; doc-view on a buffer not linked to a file harven
2009-12-04 21:50 ` Juri Linkov
2009-12-04 22:43 ` Tassilo Horn [this message]
2009-12-04 23:18 ` Drew Adams
2009-12-05 10:12 ` Tassilo Horn
2009-12-05 18:49 ` Stefan Monnier
2009-12-05 23:23 ` Juri Linkov
2009-12-07 2:38 ` Stefan Monnier
2009-12-07 17:51 ` Juri Linkov
2009-12-07 19:30 ` bug#5102: marked as done (23.1; doc-view on a buffer not linked to a file) Emacs bug Tracking System
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