From: Sebastian Gniazdowski <sgniazdowski@gmail.com>
To: Daniel Shahaf <d.s@daniel.shahaf.name>
Cc: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: [Bug] S-flag imposes non-greedy match where it shouldn't
Date: Fri, 27 Dec 2019 05:54:12 +0100 [thread overview]
Message-ID: <CAKc7PVC8NAxT+k7SHsQmBbo7Gzg8MORJLoz_1awKZhFOxdpucQ@mail.gmail.com> (raw)
In-Reply-To: <CAKc7PVDOMz1wvMGWYOki7ca5dHodMJx30eq8UEzgj=D+W7E4aQ@mail.gmail.com>
The trick is not right. I'll try to update it or otherwise change the
description.
On Thu, 26 Dec 2019 at 19:35, Sebastian Gniazdowski
<sgniazdowski@gmail.com> wrote:
>
> I've attached the extended description. It includes a trick to
> work-around the unintuitive behavior of S. It looks as follows:
>
> http://psprint.blinkenshell.org/S_flag.png
>
> I think that the way the S flag works is a bit of an inconsistency,
> Because ${str%%X##**} would not stop at the first from the right
> match, it would try other matches starting from the right and go on up
> to the final first from the left X. I think that (S) shouldn't change
> this, but on the other hand should ${(S)str%%X##} match the first
> three X? Rather not, as it would resemble ## then... Intuitively,
> however, it should match all the three right X.
>
> On Thu, 19 Dec 2019 at 16:30, Daniel Shahaf <d.s@daniel.shahaf.name> wrote:
> >
> > Sebastian Gniazdowski wrote on Wed, 18 Dec 2019 20:44 +00:00:
> > > Or rather not a bug… It seems that it's the result of how % searches
> > > the substrings from the end – it stops at the first match, i.e.: after
> > > finding a first X from the right.
> >
> > Could we improve the documentation of (S), then?
>
>
>
> --
> Sebastian Gniazdowski
> News: https://twitter.com/ZdharmaI
> IRC: https://kiwiirc.com/client/chat.freenode.net:+6697/#zplugin
> Blog: http://zdharma.org
--
Sebastian Gniazdowski
News: https://twitter.com/ZdharmaI
IRC: https://kiwiirc.com/client/chat.freenode.net:+6697/#zplugin
Blog: http://zdharma.org
next prev parent reply other threads:[~2019-12-27 4:55 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-18 20:41 Sebastian Gniazdowski
2019-12-18 20:44 ` Sebastian Gniazdowski
2019-12-19 15:29 ` Daniel Shahaf
2019-12-26 18:35 ` Sebastian Gniazdowski
2019-12-27 4:54 ` Sebastian Gniazdowski [this message]
2019-12-27 5:09 ` Sebastian Gniazdowski
2019-12-27 5:29 ` Daniel Shahaf
2019-12-28 19:04 ` Sebastian Gniazdowski
2019-12-28 20:34 ` Bart Schaefer
2019-12-28 21:00 ` Daniel Shahaf
2019-12-29 0:56 ` Sebastian Gniazdowski
2019-12-29 2:05 ` Daniel Shahaf
2019-12-29 3:14 ` Sebastian Gniazdowski
2019-12-30 18:00 ` [PATCH] zshexpn: Expand documentation of (S) (was: Re: [Bug] S-flag imposes non-greedy match where it shouldn't) Daniel Shahaf
2019-12-30 18:11 ` Roman Perepelitsa
[not found] ` <CAKc7PVAXLpKqZvmbazZK=mvcz8T-AHJXKusut6aEjkkSLzgdbw@mail.gmail.com>
2019-12-30 20:01 ` Roman Perepelitsa
2019-12-30 20:20 ` Sebastian Gniazdowski
2019-12-30 21:24 ` ${(S)%%*} doesn't match the empty string (was: Re: [PATCH] zshexpn: Expand documentation of (S) (was: Re: [Bug] S-flag imposes non-greedy match where it shouldn't)) Daniel Shahaf
2019-12-30 21:44 ` Roman Perepelitsa
2019-12-30 22:11 ` Sebastian Gniazdowski
2019-12-30 22:34 ` Peter Stephenson
2019-12-30 21:40 ` [PATCH] zshexpn: Expand documentation of (S) (was: Re: [Bug] S-flag imposes non-greedy match where it shouldn't) Roman Perepelitsa
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