From: Sebastian Gniazdowski <sgniazdowski@gmail.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: [Bug] S-flag imposes non-greedy match where it shouldn't
Date: Wed, 18 Dec 2019 21:44:48 +0100 [thread overview]
Message-ID: <CAKc7PVCPPeE36W4aSKu5rid2Vem+Q+h5XZTX+k7=E9qLU0nPhw@mail.gmail.com> (raw)
In-Reply-To: <CAKc7PVCUBKfsOSakwNwrcx1Xkf09b5CFJJDxjKFYU42oAUFZ-g@mail.gmail.com>
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.
On Wed, 18 Dec 2019 at 21:41, Sebastian Gniazdowski
<sgniazdowski@gmail.com> wrote:
>
> Hi,
> str="aXXXXXbXXXXc"; print ${(S)str##X##}
> Output: abXXXXc
>
> As it can be seen, the flag worked correctly. However, when %% will be
> used instead of ##:
>
> str="aXXXXXbXXXXc"; print ${(S)str%%X##}
> Output: aXXXXXbXXXc
>
> Then the (S) flag seems to impose also non-greedy matching, not only
> substring searching.
> --
> 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:[~2019-12-18 20:45 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 [this message]
2019-12-19 15:29 ` Daniel Shahaf
2019-12-26 18:35 ` Sebastian Gniazdowski
2019-12-27 4:54 ` Sebastian Gniazdowski
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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