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Re: PATCH: _diff (new), _prcs (upgrade)
- X-seq: zsh-workers 9460
- From: Sven Wischnowsky <wischnow@xxxxxxxxxxxxxxxxxxxxxxx>
- To: zsh-workers@xxxxxxxxxxxxxx
- Subject: Re: PATCH: _diff (new), _prcs (upgrade)
- Date: Fri, 28 Jan 2000 16:11:19 +0100 (MET)
- In-reply-to: Alexandre Duret-Lutz's message of 28 Jan 2000 16:04:23 +0100
- Mailing-list: contact zsh-workers-help@xxxxxxxxxxxxxx; run by ezmlm
Alexandre Duret-Lutz wrote:
> ...
>
> Sven> So the style would only be used to get the command (including: how it
> Sven> should be invoked, i.e. with `command' or not) and any options the
> Sven> user wants to give to it. If the style is not set we use some standard
> Sven> way, so we don't have to set up default styles for this.
>
> This (your last sentence) assume that no option is used by default (like
> the call to ps in _pids). This seems restrictive (but I don't have an
> example where options are needed by default, and where the user would want
> to change them).
Err, either I misunderstand you here, or... options the completion
function wants to give would be give to _call, as in the example for
diff I had in my last answer (`_call diff -- -v').
The only problem is that this means that such options will always be
combined with the ones a user might define in a style. I.e. there are
actually two types of options a completion function might give to a
command: those that *have* to be there to make it work in the way the
function needs it (like the -v for diff) and those the completion
functions *suggests* to use -- which may be overridden by a user's
style. Ideally, we should support both cases...
> >> ...
> >>
> >> Another point about the $+functions[<name>] test: what if I am writting a
> >> completion function for a shell function? say I need to call it, how do I
> >> do?
>
> Sven> Good point. Also testing $+commands and $+builtins might help here,
> Sven> but could still be wrong. Hm, I just wanted to make this cleverer but
> Sven> since the style would allow one to override it anyway, we should
> Sven> probably just call it without any pre-command modifier in the default
> Sven> case. Or let _call accept options like -c and -b to say that the
> Sven> default should use `command' or `builtin'.
>
> Given I am writting a _call in a completion function, how do I decide
> whether I must use -[bc] or not? We ne a rule here, that should be used
> consistently in the completion system (see the first paragraph for what I
> suggest).
>
> And if a rule is chosen, _call can apply it, and therefore -[bc] parameters
> may not be needed anymore.
I suggested that to enable completion functions to make it as you
described in 9453: if we are completing for the command, call it
without a `command', otherwise with it. And that can't be decided in
_call.
Bye
Sven
--
Sven Wischnowsky wischnow@xxxxxxxxxxxxxxxxxxxxxxx
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