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bug#32989: 26.1; Opening PDF attachments in Gnus with doc-view-mode caus

From: Jordan Wilson
Subject: bug#32989: 26.1; Opening PDF attachments in Gnus with doc-view-mode causes error on Windows
Date: Wed, 10 Oct 2018 11:45:57 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (windows-nt)

On 2018-10-08 (Mon) at 23:02 (ZZZ), Eli Zaretskii <address@hidden> wrote:
>> From: Jordan Wilson <address@hidden>
>> 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.

Attachment: doc-view-26.diff
Description: Text Data

Attachment: doc-view-trunk.diff
Description: Text Data

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

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