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Subject: Re: regex issue / asterisk / musl / sed
Date: Mon, 29 Feb 2016 14:53:48 +0100
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* Bastian Bittorf <bittorf@bluebottle.com> [2016-02-29 13:57:36 +0100]:
> root@box:~ echo 'o*o' | sed -e 's/*/asterisk/g'
> sed: bad regex '*': Invalid regexp
> root@box:~ echo 'o*o' | sed -e 's/\*/asterisk/g'
> oasterisko
> 
> it's musl 1.1.14 on OpenWrt / r48814
> both commands are working fine with glibc and uclibc
> but the first invokation fails with musl 1.1.14 but
> works with musl 1.1.13. unsre if the prob is on my
> side, maybe $you have an idea...

yes, i introduced this regression in
http://git.musl-libc.org/cgit/musl/commit/?id=7eaa76fc2e7993582989d3838b1ac32dd8abac09

because i missed the special * behaviour for BRE,
but even before that ^* was broken so just reverting
the patch is not enough, handling * after an anchor
or assertion correctly needs more code changes.