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Date: Fri, 29 May 2015 14:24:45 -0700
Message-ID: <CAH+w=7ZGUW-57-HVqy9kAVdH_xysyHvxadPmRyYJq1LTRWWDhA@mail.gmail.com>
Subject: Re: Arith parsing bug with minus after $#
From: Bart Schaefer <schaefer@brasslantern.com>
To: ZyX <kp-pav@yandex.ru>
Cc: Zsh hackers list <zsh-workers@zsh.org>, Martijn Dekker <martijn@inlv.org>
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On May 29, 2015 1:54 PM, "ZyX" <kp-pav@yandex.ru> wrote:
>
> But later it explicitly says that not enclosed in single braces may only
be names or single-character variables. I.e. $#- is ${#}-, $10 is ${1}0, =
=E2=80=A6

Yes, but $#name to return the length of the value of $name is already a zsh
extension, so unless we're in some emulation mode, treating $#- as the
length of $- is perfectly reasonable.

I vaguely recall having a similar discussion about the meaning of $## ...
Related, is ${##foo} parsed like ${#name#foo} with an empty name, or ...?

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