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To: Zsh hackers list <zsh-workers@zsh.org>
From: TS <debts@xk2c.de>
Subject: Re: PATCH: search XDG_DATA_DIRS in _setxkbmap completion
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Date: Wed, 19 Sep 2018 06:53:22 +0200
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Hello

> How should empty array elements in XDG_DATA_DIRS be handled?  E.g.,
> XDG_DATA_DIRS=/foo:/bar::/baz ?

how about s.th. around the lines of:

tosh ~ %
XDG_DATA_DIRS=/usr/lib/X11/xkb:/usr/share/X11/xkb:/usr/local/lib/X11/xkb:/usr/local/share/X11/xkb
tosh ~ % typeset -aU searchdirs
tosh ~ % searchdirs=(${(s.:.)XDG_DATA_DIRS}
{/usr/lib,/usr/share,/usr/local/lib,/usr/local/share}/X11/xkb ${XDG_DATA_HOME}
~/.local/share/X11/xkb)
tosh ~ % ev searchdirs
array-unique  searchdirs:
1='/usr/lib/X11/xkb'
2='/usr/share/X11/xkb'
3='/usr/local/lib/X11/xkb'
4='/usr/local/share/X11/xkb'
5='/home/heinb/.local/share/X11/xkb'
tosh ~ % searchdirs+=('')      << just for example
tosh ~ % ev searchdirs
array-unique  searchdirs:
1='/usr/lib/X11/xkb'
2='/usr/share/X11/xkb'
3='/usr/local/lib/X11/xkb'
4='/usr/local/share/X11/xkb'
5='/home/heinb/.local/share/X11/xkb'
6=''                          <<------ empty
tosh ~ % searchdirs=(${^~searchdirs}(N/))
tosh ~ % ev searchdirs
array-unique  searchdirs:
1='/usr/share/X11/xkb'




kind regards,

     Thilo