completion help

completion help

[Michael Drzal]

I apologize in advance if this question has been asked before and
answered, but I spent the last couple of days searching the web and
reading docs, and I came up empty handed.

I love the zsh completion system, but I'm having a little trouble
trying to figure out how to setup a specific completion.  I work in an
environment where hosts have DNS entries in multiple domains.  There
is one domain for normal host access, another domain for some form of
inband access (think DRAC on dells or SP/SC on sun hosts), and a third
for out of band access (serial console).  I would like to be able to
complete the domain name for various commands (ssh, ping, traceroute,
...).  I would envision something like:

% ssh host<TAB>
host host.regular host.inband host.outofband

I realize that I could enumerate all of the possible hosts with the
hosts style, but this seems like overkill.  Is there some way that I
could do something like:

zstyle context domains domain1 domain2 domain3 ...

and get the effect that I'm looking for?

  Mike

Re: completion help

[Bart Schaefer]

On Apr 14, 10:08am, Michael Drzal wrote:
}
} % ssh host<TAB>
} host host.regular host.inband host.outofband
} 
} I realize that I could enumerate all of the possible hosts with the
} hosts style, but this seems like overkill.  Is there some way that I
} could do something like:
} 
} zstyle context domains domain1 domain2 domain3 ...
} 
} and get the effect that I'm looking for?

zstyle -e ':completion:*:(ssh|scp):*' hosts \
    'reply=( ${${words[CURRENT]%.*}#*@}.{domain1,domain2,domain3,...} )'

This will complete the domains directly (with a leading dot) if you
have't already typed the host part.  A conditional test on
$words[CURRENT] could be added to set reply only if there is already
at least one dot.  Additional complexity is of course possible.  You
might also want to put the list of domain names in a variable where
it's more easily edited:

host_domains=( domain1 domain2 domain3 ... )

zstyle -e ':completion:*:(ssh|scp):*' hosts \
    '[[ $words[CURRENT] = *.* ]] && 
     reply=( ${${words[CURRENT]%.*}#*@}.${^host_domains} )'

If you're starting to get really complex conditions, I suggest putting
them into a function and replacing the string value of the style with
a call to the function.

completion help

[Dwight Shih]

After years of avoidance, I've finally decided to start playing with
completion. Here's what I've got:

typeset -A opt_args
local contest state line

_arguments -s -S \
  "1:build:(build test start stop deploy validate help)" \
  "*:file:_files" \
  "-conf[specify configuration file]:file:_files" \
  "-a[automate deploy actions]" \
  "-f[force more or copy]" \
  "-m[move jar]" \
  "-c[copy jar]" \
  "-v(vv vvv)[validate output level 1]" \
  "-vv(v vvv)[validate output level 2]" \
  "-vvv(v vv)[validate output level 3]" \
  && return 0

which works as far as it goes.

What I would like to group options by major mode (the first set of
mutually exclusive options: build test start stop deploy validate and
help) so that only valid options for each mode would apply. So -a -f -m
-c would only apply in the deploy mode and -v -vv -vvv would only apply
in the validate mode.

I'd also like to restrict file completions. For example, I would like to
restrict the -conf file completion to be limited to *.xml and the general
file completion to be limited to *.jar.

Thanks for any help that you can provide.

Dwight Shih

Re: completion help

[Eric Mangold]

On Sat, 14 Feb 2004 15:09:22 -0500, Dwight Shih <zshlist@ideoplex.com> 
wrote:

> After years of avoidance, I've finally decided to start playing with
> completion. Here's what I've got:
>
> typeset -A opt_args
> local contest state line
>
> _arguments -s -S \
>   "1:build:(build test start stop deploy validate help)" \
>   "*:file:_files" \
>   "-conf[specify configuration file]:file:_files" \
>   "-a[automate deploy actions]" \
>   "-f[force more or copy]" \
>   "-m[move jar]" \
>   "-c[copy jar]" \
>   "-v(vv vvv)[validate output level 1]" \
>   "-vv(v vvv)[validate output level 2]" \
>   "-vvv(v vv)[validate output level 3]" \
>   && return 0
>
> which works as far as it goes.
>
> What I would like to group options by major mode (the first set of
> mutually exclusive options: build test start stop deploy validate and
> help) so that only valid options for each mode would apply. So -a -f -m
> -c would only apply in the deploy mode and -v -vv -vvv would only apply
> in the validate mode.

I could easily be way off on this but I think you want to use "sets". See 
the _arguments documentation.

> I'd also like to restrict file completions. For example, I would like to
> restrict the -conf file completion to be limited to *.xml and the general
> file completion to be limited to *.jar.

The _files documentation explains this. You want to use the -g argument as 
in:
_files -g "*.xml"


	-Eric