GNU bug report logs - #26014
25.1; `browse-url-of-buffer' fails on Windows 10 if the path contains spaces

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Klaus-Dieter Bauer <bauer.klaus.dieter <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.1; `browse-url-of-buffer' fails on Windows 10 if the path contains
 spaces
Date: Tue, 7 Mar 2017 16:53:41 +0100

[Message part 1 (text/plain, inline)]

It seems that w32-shell-execute cannot handle file://-URIs with url-escaped
spaces, causing browse-url-of-file to fail. I observed this issue when
trying to to markdown-export-and-preview from markdown-mode.el, but the
issue also occurs with browse-url-of-buffer.

To reproduce, create a file C-x f c:/tmp/file with spaces.html and execute M-:
(browse-url-of-buffer).

It will generate the backtrace

Debugger entered--Lisp error: (error "ShellExecute failed: Das System
kann die angegebene Datei nicht finden.")
  w32-shell-execute("open" "file:///c:/tmp/a%20file%20with%20spaces.html")
  browse-url-default-windows-browser("file:///c:/tmp/a%20file%20with%20spaces.html"
nil)
  apply(browse-url-default-windows-browser
"file:///c:/tmp/a%20file%20with%20spaces.html" nil)
  browse-url-default-browser("file:///c:/tmp/a%20file%20with%20spaces.html" nil)
  apply(browse-url-default-browser
"file:///c:/tmp/a%20file%20with%20spaces.html" nil)
  browse-url("file:///c:/tmp/a%20file%20with%20spaces.html")
  browse-url-of-file("c:/tmp/a file with spaces.html")
  browse-url-of-buffer()

For reference, calling

(browse-url "file:///c:/tmp/a file with spaces.html")

works as intended.
------------------------------

In GNU Emacs 25.1.1 (x86_64-w64-mingw32)
 of 2016-09-17 built on KAEL
Windowing system distributor 'Microsoft Corp.', version 10.0.14393
Configured using:
 'configure --prefix=/tmp/emacs --without-imagemagick 'CFLAGS=-O2
 -fomit-frame-pointer -g0''

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND DBUS NOTIFY ACL GNUTLS LIBXML2 ZLIB
TOOLKIT_SCROLL_BARS

[Message part 2 (text/html, inline)]

Message #8 received at 26014 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Klaus-Dieter Bauer <bauer.klaus.dieter <at> gmail.com>
Cc: 26014 <at> debbugs.gnu.org
Subject: Re: bug#26014: 25.1;
 `browse-url-of-buffer' fails on Windows 10 if the path contains spaces
Date: Tue, 07 Mar 2017 18:39:41 +0200

> From: Klaus-Dieter Bauer <bauer.klaus.dieter <at> gmail.com>
> Date: Tue, 7 Mar 2017 16:53:41 +0100
> 
> It seems that w32-shell-execute cannot handle file://-URIs with url-escaped spaces, causing browse-url-of-file
> to fail. I observed this issue when trying to to markdown-export-and-preview from markdown-mode.el, but the
> issue also occurs with browse-url-of-buffer.
> 
> To reproduce, create a file C-x f c:/tmp/file with spaces.html and execute M-: (browse-url-of-buffer).
> 
> It will generate the backtrace

Thanks, I think I fixed that now.

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