zsh doesn't complete for tar, zip, possibly other files

[Lewis Thompson <purple@xxxxxxxxx>]

Hi guys

The subject is pretty much my problem.  I'd be very grateful if
anybody is able to help me resolve this one.

cheers, Lewis

partlow ~ % ls *.zip
First Ascent - Disk 2.zip  First Ascent - DVD Extras.zip  foo.zip
partlow ~ % unzip [hammering TAB]

Interestingly for tar I get different results:

partlow ~ % ls *.tar
foo.tar
partlow ~ % tar [TAB]
A  -- append to an archive
c  -- create a new archive
f  -- specify archive file or device
t  -- list archive contents
u  -- update archive
v  -- verbose output
x  -- extract files from an archive
partlow ~ % tar xvf [hammering TAB]

So clearly completion is trying to do something.  Other useful info:

partlow ~ % zsh --version
zsh 4.3.10 (x86_64-unknown-linux-gnu)

I believe these are all of my completion settings in .zshrc:

# The following lines were added by compinstall

zstyle ':completion:*' completer _complete _ignored _approximate _prefix
zstyle ':completion:*' expand suffix
zstyle ':completion:*' file-sort access
zstyle ':completion:*' ignore-parents parent pwd ..
zstyle ':completion:*' list-colors ''
zstyle ':completion:*' list-prompt '%SAt %p: Hit TAB for more, or the
character to insert%s
'
zstyle ':completion:*' matcher-list '' 'l:|=* r:|=*' 'r:|[._-]=**
r:|=**' 'm:{[:lower:][:up
per:]}={[:upper:][:lower:]}'
zstyle ':completion:*' max-errors 3 numeric
zstyle ':completion:*' menu select=1
zstyle ':completion:*' preserve-prefix '//[^/]##/'
zstyle ':completion:*' prompt 'list of corrections numerrs=%e'
zstyle ':completion:*' select-prompt '%SScrolling active: current
selection at %p%s'
zstyle ':completion:*' squeeze-slashes true
zstyle :compinstall filename '/home/lt203398/.zshrc'

autoload -Uz compinit
compinit
# End of lines added by compinstall

# kill pid/process tab-complete list
zstyle ':completion:*:*:kill:*' menu yes select
zstyle ':completion:*:kill:*'   force-list always