Completion question

[Byron Foster <byron@xxxxxxxx>]

Hello,

     I can't figure out how to configure the completion system so that 
only directories are listed after typing 'rm -r ' at the command line, 
but without the the '-r' option only list files.  Can I do this by only 
using styles, or do I need to write an _rm function? Im using zsh 4.0.4

so far for only listing files I have

zstyle ':completion:*:complete:rm:*' file-patterns '*(^-/):files'

Of course this breaks 'rm -r'


Thanks,
Byron