Re: Path with spaces in _canonical_paths

[thomas@coldfix.de]

> I'm not able to reproduce this using nothing but compinit plus the
> compdef above.  I get just one completion, "/tmp/My\ File", regardless
> of whether that file exists or not.
> 
> Try this:
> 
> debug_canonical_paths () {
>    _canonical_paths -N files files /tmp/My\ File
> }
> compdef '_complete_debug debug_canonical_paths' cmd

Thanks for your answer! I can't reproduce with the minimal example 
anymore either.

However, I still get similar behaviour by first doing:

     sudo ln -s /tmp /foo

And then, same as before (with or without debug, with or without extra 
function, with or without -N):

     debug_canonical_paths () {
        _canonical_paths -N files files /tmp/My\ File
     }
     compdef '_complete_debug debug_canonical_paths' cmd

     cmd <Tab><Tab>

Results in:

     /foo/My File
     /tmp/My\ File

This is with blank zsh configuration `zsh -f` plus:

     autoload -U compinit; compinit


 > Pressing TAB then drops a file in /tmp with a debug trace of the
 > execution of _canonical_paths.  In particular look at which "zstyle"
 > lookups are being done and which of those might be causing the extra
 > entries.  You can also look at the context around elements being added
 > to the "matches" array.

The trace shows:

        +_canonical_paths_add_paths:19> '(anon)'
        [...]
         +(anon):3> matches+=( '/tmp/My\ File' )

but later:

         +_canonical_paths_add_paths:28> matches+=( '/foo/My File' )

which explains why `compadd -Q` handles those differently. So the 
different unintended behaviour seems to appear only in the "alternative" 
paths.

I originally encountered this behaviour with a file in 
/var/run/media/thomas/ which is symlinked to /media on my system. I get 
the same problem with files in /usr/bin/ which has several symlinks 
/usr/sbin/, /bin, /sbin on archlinux.

I suspect when I previously also got a similar behaviour with my 
original minimal example without the symlink, there might have been 
tmpfs remounts or something(?), not sure what has changed, I did reboot 
in between.

Best, Thomas