Re: _path_files prefix handling

[Peter Stephenson <pws@xxxxxxx>]

Peter Stephenson wrote:
> 1. At the least we could test [[ -d pathcomponent ]] at each stage and
> trust the system to get this right, rather than rely on pathcomponent
> appearing in the list of entries in the current directory.  This ought
> to be relatively simple, and I think fixes all the problems I know about
> --- this test works for all components of /cygdrive/c/Program\ Files
> under Cygwin, for example, making half of `fake's properties redundant
> (you still need it to be offered the choice, but don't need it for the
> system to recognise that the choice is a valid path component).

Here's an attempt which seems to do more or less the right thing with
Cygwin and ClearCase without fake-files.  I'm not claiming this is The
Right Way To Do It.  I have tried it with a filename with a space in,
however.

Index: Completion/Unix/Type/_path_files
===================================================================
RCS file: /cvsroot/zsh/zsh/Completion/Unix/Type/_path_files,v
retrieving revision 1.20
diff -u -r1.20 _path_files
--- Completion/Unix/Type/_path_files	6 Nov 2002 08:03:44 -0000	1.20
+++ Completion/Unix/Type/_path_files	12 Feb 2003 15:05:06 -0000
@@ -343,6 +343,22 @@
     if [[ -n "$PREFIX$SUFFIX" ]]; then
       # See which of them match what's on the line.
 
+      # pws non-canonical hack which seems to work so far...
+      # if we didn't match by globbing, check that there is
+      # something to match by explicit name.  This is for
+      # `clever' filing systems where names pop into existence
+      # when referenced.
+      if (( ! $#tmp1 )); then
+	  for tmp3 in "$tmp2[@]"; do
+	      if [[ -n $tmp3 && $tmp3 != */ ]]; then
+		  tmp3+=/
+	      fi
+	      if [[ -e "$tmp3${(Q)PREFIX}${(Q)SUFFIX}" ]] then
+		  tmp1+=("$tmp3${(Q)PREFIX}${(Q)SUFFIX}")
+	      fi
+	  done
+      fi
+
       if (( ! $#tmp1 )); then
         tmp2=( ${^tmp2}/$PREFIX$SUFFIX )
       elif [[ "$tmp1[1]" = */* ]]; then


-- 
Peter Stephenson <pws@xxxxxxx>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 692070


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