Re: Probably bug in lib/regexec.c with possessive quantifier

[Dmitry V. Levin]

Hi,

On Tue, May 25, 2021 at 12:33:06PM +0300, Egor Ignatov wrote:
> Hi,
> 
> So, after updating gnulib, some test cases in 
> augeas(https://github.com/hercules-team/augeas) related to regex started 
> to fail.
> I found a commit in gnulib that introduced this behavior:
> 
> 70b673eb768eb7288639cbbe4642c2912b7d204e
> 
> I simplified the bug case to the following:
> 
> /re_syntax_options = RE_NO_BK_PARENS;
> pattern = "(.*+)";//

I'm pretty sure this is the same bug I reported a month ago:
https://lists.gnu.org/archive/html/bug-gnulib/2021-04/msg00134.html

The workaround is replacing "(.*+)" with either "(.*)" or "(.+)" depending
on what's appropriate.


-- 
ldv