From: Bart Schaefer <firstname.lastname@example.org>
To: Peter Stephenson <email@example.com>
Cc: Philippe Altherr <firstname.lastname@example.org>,
Zsh hackers list <email@example.com>
Subject: Re: Subscript flag (i) not working correctly on empty strings?
Date: Fri, 6 Jan 2023 10:12:17 -0800 [thread overview]
Message-ID: <CAH+w=7Z5=ncO6JXa=qhbXkXkpC_3V5gBSv4eCv=ASXjYmT1zVA@mail.gmail.com> (raw)
On Fri, Jan 6, 2023 at 9:24 AM Peter Stephenson
> > On 06/01/2023 16:01 Philippe Altherr <firstname.lastname@example.org> wrote:
> > > s=; echo $s[(i)z];
> > > 0
> > Why is the last line 0 and not 1?
> Certainly looks plain wrong.
> None of the existing tests fail with this change.
I thought there was a discussion about this at some point in the past
... but it may have been limited to array cases. I have the feeling
we concluded that (i) and (I) should produce the same result on empty
string for purposes of boolean tests, but I can't find such a
conversation in the archives. I remain a little concerned that some
scripts are going to unexpectedly break, but can't point to anything,
and $anUnsetName[(i)z] returns nothing rather than 0, so it's probably
an unfounded worry.
next prev parent reply other threads:[~2023-01-06 18:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-06 16:01 Philippe Altherr
2023-01-06 17:23 ` Peter Stephenson
2023-01-06 18:12 ` Bart Schaefer [this message]
2023-01-07 13:45 ` Philippe Altherr
2023-01-07 13:52 ` Roman Perepelitsa
2023-01-07 13:54 ` Roman Perepelitsa
2023-01-08 19:47 ` Peter Stephenson
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