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Date: Mon, 2 Mar 2015 11:19:25 -0800
Message-ID: <CAH+w=7YoHjN85hqOZVywOfYGZqvU74vZrbE84Ln+V2HQi-6nSA@mail.gmail.com>
Subject: Re: grammar triviality with '&&'
From: Bart Schaefer <schaefer@brasslantern.com>
To: Zsh Users <zsh-users@zsh.org>
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--f46d0438951baae06e051053182c
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On Mar 2, 2015 3:17 AM, "Peter Stephenson" <p.stephenson@samsung.com> wrote:
>
>
> % andfn() {
>    integer stat=$?
>    (( $stat > 0 )) && return $stat
>    return 0
> }
> % alias and='andfn &&'

% alias and='(){ return $? } && '

(Trailing space thrown in to expand aliases again in the next word.)

Heck, for most purposes you don't even need $? preserved:

% alias and='(( $? )) || '

Heck #2, let's just invent some new operators:

alias -g @@=';(){ return $? } && '
alias -g ::=';(){ return $? } || '

--f46d0438951baae06e051053182c--