From: Harald van Dijk <harald@gigawatt.nl>
To: Zdenek Kaspar <zkaspar82@gmail.com>, dash@vger.kernel.org
Subject: Re: dash 0.5.9: break and continue bug
Date: Tue, 23 Aug 2016 22:41:50 +0200 [thread overview]
Message-ID: <377a8f04-2ecb-0171-7fb4-5baeacefab26@gigawatt.nl> (raw)
In-Reply-To: <c8a328b0-1ed7-cb35-5a9c-95b7f592cb9e@gmail.com>
On 23/08/16 22:23, Zdenek Kaspar wrote:
> Hi, I've noticed 0.5.9 does ignore break and continue statements, here
> is simple reproducer:
>
>
> one() {
> echo " one"
> break
> }
>
> two() {
> echo " two"
> }
>
> for i in 1 2
> do
> echo "loop $i:"
> one
> two
> done
>
>
> dash-0.5.9:
> $ dash dash-break-test
> loop 1:
> one
> two
> loop 2:
> one
> two
>
> dash-0.5.8-4.fc24.x86_64:
> $ dash dash-break-test
> loop 1:
> one
break and continue now need to appear in the loop directly, they cannot
be wrapped in a function any more. Although this is a visible change in
behaviour, it is intentional:
<https://www.mail-archive.com/dash%40vger.kernel.org/msg00929.html>
The standard is a bit unclear on how break and continue are meant to
behave in these situations, as it refers to the "enclosing loop" without
defining what counts and doesn't count as the enclosing loop, but the
next version of the standard will make it clear that your script is not
required to behave the way you expect:
<http://austingroupbugs.net/view.php?id=842>
That said, shells are still allowed to treat your script the way you expect.
> HTH, Z.
next prev parent reply other threads:[~2016-08-23 20:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-23 20:23 dash 0.5.9: break and continue bug Zdenek Kaspar
2016-08-23 20:41 ` Harald van Dijk [this message]
2016-08-23 22:24 ` Zdenek Kaspar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=377a8f04-2ecb-0171-7fb4-5baeacefab26@gigawatt.nl \
--to=harald@gigawatt.nl \
--cc=dash@vger.kernel.org \
--cc=zkaspar82@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).