GNU bug report logs - #32989
26.1; Opening PDF attachments in Gnus with doc-view-mode causes error on Windows

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#32989: closed (26.1; Opening PDF attachments in Gnus with
 doc-view-mode causes error on Windows)
Date: Sat, 03 Nov 2018 08:33:02 +0000

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Your message dated Sat, 03 Nov 2018 10:32:09 +0200
with message-id <83k1lufto6.fsf <at> gnu.org>
and subject line Re: bug#32989: 26.1; Opening PDF attachments in Gnus with doc-view-mode causes error on Windows
has caused the debbugs.gnu.org bug report #32989,
regarding 26.1; Opening PDF attachments in Gnus with doc-view-mode causes error on Windows
to be marked as done.

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From: Jordan Wilson <jordan.t.wilson <at> gmx.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 26.1;
 Opening PDF attachments in Gnus with doc-view-mode causes error on
 Windows
Date: Mon, 08 Oct 2018 15:44:55 +0100

Hi,

I'm running Emacs 26.1 on Windows 10. I've replicated this with "emacs -Q"

In a gnus article buffer, opening a PDF attachment in doc-view causes
doc-view to fail with the error:
  File error: "Opening output file", "Invalid argument", "c:/Users/Jordan/Emacs/.cache/docview-cache/ *mm*-012345" 

this leaves a buffer showing the file literally. If I rename that buffer
to something not containing an asterisk, it displays fine when running
"doc-view-mode". Windows apparently can't handle asterisks in
directory/file names.

Thanks



In GNU Emacs 26.1 (build 1, x86_64-w64-mingw32)
 of 2018-05-29 built on TPW550S
Windowing system distributor 'Microsoft Corp.', version 10.0.17134

Configured using:
 'configure --without-compress-install --without-dbus --with-modules
 'CFLAGS= -O2 -g3''

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND NOTIFY ACL GNUTLS LIBXML2
ZLIB TOOLKIT_SCROLL_BARS MODULES THREADS LCMS2

Important settings:
  value of $LANG: ENG
  locale-coding-system: cp1252

-- 
Jordan Wilson
    Sent from Gnus v5.13, GNU Emacs 26.1

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Jordan Wilson <jordan.t.wilson <at> gmx.com>
Cc: 32989-done <at> debbugs.gnu.org
Subject: Re: bug#32989: 26.1;
 Opening PDF attachments in Gnus with doc-view-mode causes error on
 Windows
Date: Sat, 03 Nov 2018 10:32:09 +0200

> From: Jordan Wilson <jordan.t.wilson <at> gmx.com>
> Cc: 32989 <at> debbugs.gnu.org
> Date: Wed, 10 Oct 2018 11:45:57 +0100
> 
> 
> [1:text/plain Hide]
> 
> On 2018-10-08 (Mon) at 23:02 (ZZZ), Eli Zaretskii <eliz <at> gnu.org> wrote:
> >> From: Jordan Wilson <jordan.t.wilson <at> gmx.com>
> >> Date: Mon, 08 Oct 2018 15:44:55 +0100
> >> 
> >>   File error: "Opening output file", "Invalid argument", "c:/Users/Jordan/Emacs/.cache/docview-cache/ *mm*-012345" 
> >> 
> >> this leaves a buffer showing the file literally. If I rename that buffer
> >> to something not containing an asterisk, it displays fine when running
> >> "doc-view-mode". Windows apparently can't handle asterisks in
> >> directory/file names.
> >
> > Windows doesn't allow '*' (and a few other characters) in any file
> > name, not just in directory name.  Gnus should run the file name
> > through convert-standard-filename to get something that is guaranteed
> > to work on any filesystem.
> Looking, it seems to be on doc-view's side -- if a buffer isn't
> associated with a file, it uses the buffer name for the file's cache
> directory. Here's a patch to the 26 and trunk branches of doc-view.el to
> run the file names through `convert-standard-filename'. It fixes the
> problem for me, at least.

Thanks, pushed to the emacs-26 branch (will be merged to master from
there shortly).

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