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Re: Bug: _oldlist and automatic coloring of matched



On Sat, 24 Apr 2010 10:35:06 -0700
Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx> wrote:
> On Fri, Apr 23, 2010 at 3:28 PM, Julius Plenz <julius@xxxxxxxxx> wrote:
> >
> > Â Âautoload -U compinit && compinit
> > Â Âzmodload -i zsh/complist
> > Â Âzstyle ':completion:*' completer _oldlist _complete
> > Â Âzstyle ':completion:*' menu select select=long-list
> >
> > If you hit Tab the first time, the listing of filenames is not
> > colored. But once you hit Tab again (and the _oldlist completer comes
> > into play) suddenly some matches are colored.
> 
> This is actually coming from _main_complete, here:
> 
> if [[ "$compstate[old_list]" = keep ]]; then
>   ZLS_COLORS="$_saved_colors"
> elif (( $#_comp_colors )); then
>   ZLS_COLORS="${(j.:.)_comp_colors}"
> else
>   unset ZLS_COLORS
> fi
> 
> I guess there should be a second test that $_saved_colors is non-empty
> before assigning it to ZLS_COLORS ... but I'm not sure that's correct
> either, because we don't know at this point *why* $_saved_colors is
> empty, i.e., whether the value when saved was empty or unset.

Should it be something like this?

Index: Completion/Base/Core/_main_complete
===================================================================
RCS file: /cvsroot/zsh/zsh/Completion/Base/Core/_main_complete,v
retrieving revision 1.11
diff -p -u -r1.11 _main_complete
--- Completion/Base/Core/_main_complete	1 Apr 2009 10:57:12 -0000	1.11
+++ Completion/Base/Core/_main_complete	25 Apr 2010 21:21:25 -0000
@@ -30,7 +30,8 @@ local func funcs ret=1 tmp _compskip for
       _saved_lastprompt="${compstate[last_prompt]}" \
       _saved_list="${compstate[list]}" \
       _saved_insert="${compstate[insert]}" \
-      _saved_colors="$ZLS_COLORS"
+      _saved_colors="$ZLS_COLORS" \
+      _saved_colors_set=${+ZLS_COLORS}
 
 # _precommand sets this to indicate we are following a precommand modifier
 local -a precommands
@@ -325,7 +326,11 @@ fi
     compstate[list]="${compstate[list]//messages} force"
 
 if [[ "$compstate[old_list]" = keep ]]; then
-  ZLS_COLORS="$_saved_colors"
+  if [[ $_saved_colors_set = 1 ]]; then
+    ZLS_COLORS="$_saved_colors"
+  else
+    unset ZLS_COLORS
+  fi
 elif (( $#_comp_colors )); then
   ZLS_COLORS="${(j.:.)_comp_colors}"
 else


-- 
Peter Stephenson <p.w.stephenson@xxxxxxxxxxxx>
Web page now at http://homepage.ntlworld.com/p.w.stephenson/



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