Hello, On 12/09/18 12:02 AM, Assaf Gordon wrote:
$ echo 1 | grep -E "(\'|^)(\1|)" grep: regexec.c:1375: pop_fail_stack: Assertion `num >= 0' failed. Aborted
I don't have a fix yet, but I reduced the crash to this interesting case: $ echo 1 | grep -E '(^|$)\1' 1 $ echo 1 | grep -E '($|^)\1' grep: regexec.c:1375: pop_fail_stack: Assertion `num >= 0' failed. Aborted