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Re: (forw) --help able programs and completion
- X-seq: zsh-users 3208
- From: Sven Wischnowsky <wischnow@xxxxxxxxxxxxxxxxxxxxxxx>
- To: zsh-users@xxxxxxxxxxxxxx
- Subject: Re: (forw) --help able programs and completion
- Date: Mon, 26 Jun 2000 12:45:01 +0200 (MET DST)
- In-reply-to: Matthias Kopfermann's message of Mon, 26 Jun 2000 12:30:49 +0200
- Mailing-list: contact zsh-users-help@xxxxxxxxxxxxxx; run by ezmlm
Matthias Kopfermann wrote:
> On Mon, Jun 26, 2000 at 11:20:20AM +0100, Peter Stephenson wrote:
> > Use compinstall. I would like feedback, but the format is restricted by
> > the fact that it will be written in zsh, so there are menus but no dialogue
> > boxes.
> Which is really an approach in the right direction. Now my
> question is: Where do i find the `--help' completion here?
Nowhere. compinstall is about configuration with styles (mostly).
What you need is to tell the completion system to use a certain
function to complete after the commands in question. That's done with
compdef <func-to-call> <commands...>
We have a function to complete the options described by the `--help'
output, it's called `_use_lo', so, once you have identified all the
commands for which completion should call the command with `--help'
and complete the options, you can do:
compdef _use_lo cmd1 cmd2 cmd3 ...
In normal setup, _use_lo is only used for `gls' because we have to be
careful. Not every Unix supports `--help' for (almost) every command
and to complete the options, we have to call the command which may be
dangerous if it doesn't understand `--help', obviously.
To -workers (and to anyone who wants to use the above): it seems
_use_lo wasn't updated for quite some time, the patch below should
make it more user-friendly.
RCS file: /cvsroot/zsh/zsh/Completion/User/_use_lo,v
retrieving revision 220.127.116.11
diff -u -r18.104.22.168 _use_lo
--- Completion/User/_use_lo 2000/03/11 00:05:30 22.214.171.124
+++ Completion/User/_use_lo 2000/06/26 10:41:34
@@ -3,4 +3,4 @@
# This is for GNU-like commands which understand the --help option,
# but which do not otherwise require special completion handling.
-_arguments -- || _default
+_arguments '*:arg: _default' --
Sven Wischnowsky wischnow@xxxxxxxxxxxxxxxxxxxxxxx
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