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From: Bart Schaefer <schaefer@brasslantern.com>
To: Sebastian Gniazdowski <sgniazdowski@gmail.com>
Cc: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: $history[@] doesn't contain last element from $HISTFILE
Date: Fri, 14 Oct 2016 12:10:20 -0700	[thread overview]
Message-ID: <CAH+w=7b3pY7-c18oGH7MS=nfyX0s6dssQ5nLQkfALCf9cRNrnQ@mail.gmail.com> (raw)
In-Reply-To: <CAKc7PVCPb8gXtLF3Sy6O4Hkens_BTLG+wxkhC42nf-sjL1epDQ@mail.gmail.com>

On Fri, Oct 14, 2016 at 11:35 AM, Sebastian Gniazdowski
<sgniazdowski@gmail.com> wrote:
>
> It's fine if it's not an unpredictable thing, I can stick to the
> workaround (now not actually a workaround), not having to do an
> is-at-least call in return. Although I'm not sure if by
> $history[$HISTNO] you mean $history[$size], if there is something
> unexpected there, it would be a problem.

$history is not an array, it's a hash whose keys are the history event
numbers.  So (( $#history < HISTSIZE )) is always true but (( HISTNO >
HISTSIZE )) is possible.  The largest possible defined index into
$history is $HISTNO, but of course that's only valid inside ZLE.

If you're manipulating history in an "fc -p" scope or the like there's
really only $(( ${${(k)history[@]}[1]} + 1)) to get the equivalent,
which does seem like an oversight.


      reply	other threads:[~2016-10-14 19:15 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-14 16:32 Sebastian Gniazdowski
2016-10-14 17:44 ` Bart Schaefer
2016-10-14 18:35   ` Sebastian Gniazdowski
2016-10-14 19:10     ` Bart Schaefer [this message]

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