From: Oliver Kiddle <okiddle@yahoo.co.uk>
To: Matt Armstrong <matt+dated+1010258681.d5e28d@lickey.com>
Cc: zsh-users@sunsite.dk
Subject: Re: I wonder if this can be improved a bit
Date: Wed, 02 Jan 2002 16:24:52 +0000 [thread overview]
Message-ID: <3C333453.9CB23105@yahoo.co.uk> (raw)
In-Reply-To: <87ellbxkek.fsf@squeaker.lickey.com>
Matt Armstrong wrote:
>
> I'm implementing a completion system for Perforce's
> a=( ${(f)"$(p4 -s help commands 2>&1)"} )
> a=( ${(M)a:#info: *} )
> a=( ${a/(#b)info: #([a-z0-9]##) */$match[1]} )
you can nest those substitutions if you want, not that it makes
much difference.
> typeset -A _p4_cmds
> _p4_cmds=()
> for i in $a; do
> _p4_cmds[$a]=""
should that not be _p4_cmds[$i]=""
> So now _p4_cmds is an associative array of available sub commands.
> Here I have annotated questions about this code.
>
> # This requires EXTENDED_GLOB to be set
> setopt extendedglob
>
> Can I depend on the completion widgets setting EXTENDED_GLOB for me?
Yes. The _comp_options array contains the list of options set for
completion.
>
> local a
> a=( ${(f)"$(p4 -s help commands 2>&1)"} )
>
> I will eventually change this to the more correct
> "$(_call_program commands p4 -s help commands) ".
I'd use $words[1] instead of p4 so that it will work if p4 is not in
the path but is specified with its location.
> a=( ${(M)a:#info: *} )
>
> ^^^
> The whitespace there is a space followed by a tab character. Is there
> any more readable way to include a tab character? A \t escape sequence?
$'\t'
In some circumstances, you may also be able to make use of [[:blank:]].
> Is there a simple way to turn an array (a b c) into (a "" b "" c "")?
> Then I could assign _p4_cmds in one statement and dump the loop.
See my -workers post on this question.
Oliver
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prev parent reply other threads:[~2002-01-02 16:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-31 19:24 Matt Armstrong
2002-01-02 16:24 ` Oliver Kiddle [this message]
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