Re: PATCH: Problem with _expand, _path_files, and $(command)

["Bart Schaefer" <schaefer@candle.brasslantern.com>]

On Jul 4, 10:04am, Sven Wischnowsky wrote:
} Subject: Re: PATCH: Problem with _expand, _path_files, and $(command)
}
} Is the eval in line 324 [of _path_files] still needed?

It appears not.

} I found another one: completion after something like `../$[4+]/'
[...]
} Blah. Very ugly. For now I had to add some $(print...)s, does anyone
} see a better solution?

Yes:  Use `eval'.  `$(print -r ...)' won't do the right thing in the
array context, will it?  For file names with embedded spaces, etc.?

The one remaining problem is that zwarn() calls trashzle() even when
stderr has been redirected away from the terminal.  Does anyone see a
problem with the utils.c patch below?

Index: Completion/Core/_expand
===================================================================
@@ -61,9 +61,9 @@
    zstyle -T ":completion:${curcontext}:" substitute; then
   [[ ! -o ignorebraces && "${#${exp}//[^\{]}" = "${#${exp}//[^\}]}" ]] &&
       eval exp\=\( ${${(q)exp}:gs/\\{/\{/:gs/\\}/\}/} \)
-  exp=( $(print -r ${${(e)exp//\\[ 	
+  eval 'exp=( ${${(e)exp//\\[ 	
 ]/ }//(#b)([ 	
-])/\\$match[1]}) ) 2>/dev/null
+])/\\$match[1]} )' 2>/dev/null
 else
   exp=( ${exp:s/\\\$/\$} )
 fi
@@ -95,7 +95,7 @@
 
 zstyle -s ":completion:${curcontext}:" keep-prefix tmp || tmp=changed
 if [[ "$word" = [\~\$]*/* && "$tmp" = (yes|true|on|1|changed) ]]; then
-  epre=( $(print -r ${(e)~${word%%/*}}) ) 2>/dev/null
+  eval 'epre=( ${(e)~${word%%/*}} )' 2>/dev/null
   if [[ -n "$epre" && $#epre -eq 1 ]]; then
     opre="${word%%/*}"
     pre="$epre[1]"
Index: Completion/Core/_path_files
===================================================================
@@ -247,9 +247,10 @@
   # after the first slash after the parameter expansion.
   # This fails for things like `f/$foo/b/<TAB>' where the first `f' is
   # meant as a partial path.
+
   linepath="${(M)pre##*\$[^/]##/}"
-  realpath=$(print -r ${(e)~linepath}) 2>/dev/null
-    [[ -z "$realpath" || "$realpath" = "$linepath" ]] && return 1
+  eval 'realpath=${(e)~linepath}' 2>/dev/null
+  [[ -z "$realpath" || "$realpath" = "$linepath" ]] && return 1
   pre="${pre#${linepath}}"
   i="${#linepath//[^\\/]}"
   orig="${orig[1,(in:i:)/][1,-2]}"
@@ -321,7 +322,7 @@
     else
       compfiles -p$cfopt tmp1 accex "$skipped" "$_matcher" '' fake "$pats[@]"
     fi
-    eval 'tmp1=( $~tmp1 )' 2>/dev/null
+    tmp1=( $~tmp1 )
 
     if [[ -n "$PREFIX$SUFFIX" ]]; then
       # See which of them match what's on the line.
Index: Src/utils.c
===================================================================
@@ -67,7 +67,8 @@
 {
     if (errflag || noerrs)
 	return;
-    trashzle();
+    if (isatty(2))
+	trashzle();
     /*
      * scriptname is set when sourcing scripts, so that we get the
      * correct name instead of the generic name of whatever

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net