Bug#930674: automatically generated menus prevent some applications from running

[Jeremy Sowden]

On 2019-06-19, at 19:39:12 +0200, Andreas Metzler wrote:
> On 2019-06-19 Jeremy Sowden <jeremy at azazel.net> wrote:
> [...]
> > Your patch truncates any string value at the first %.  I don't think
> > that's the right way to go.
> [...]
>
> https://repo.or.cz/wmaker-crm.git/commit/e037ae3684928a2fbf4a3994562a322f5d3b0c71
>
> is supposed to fix this.

That patch seems to be intended to stop parsing after the first section
of a desktop file like this:

  [Desktop Entry]
  Name=Rxvt Color Unicode Terminal
  Comment=Use the command line
  TryExec=urxvt
  Exec=urxvt
  Icon=urxvt_48x48.xpm
  Type=Application
  Categories=Utility;TerminalEmulator;
  StartupNotify=true
  Keywords=Run;
  Actions=New
  StartupWMClass=URxvt

  [Desktop Action New]
  Name=New Rxvt Color Unicode Terminal
  Exec=urxvt
  OnlyShowIn=Unity

This bug is about what to do with an Exec like this:

  Exec=/usr/bin/chromium %U

The comments in the source file suggest trying TryExec in preference to
Exec and discarding the arguments from the latter if used.  However, in
fact, if Exec is used, it is used as-is.

For %U and %F, I think we can replace them with an empty list, i.e.,
"".  For %u and %f, I think we can _probably_ do likewise.

J.
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