On Thu, Oct 26, 2023, at 7:01 PM, Greg Wooledge wrote: > On Thu, Oct 26, 2023 at 10:50:13AM -0700, Dan Bornstein wrote: >> I found a case where the regex evaluator doesn't seem to be finding the >> longest possible match for a given expression. The expression works as >> expected on an older version of Bash (3.2.57(1)-release >> (arm64-apple-darwin22)). > > Bash uses the system's (libc) version of regex(3), so the difference > you're seeing is presumably caused by the apple-darwin22 part, rather > than the bash 3.2 part. (Or conversely, caused by the linux-gnu part > rather than the bash 5.2 part.)
Indeed, on my macOS system *both* 3.2.57 and 5.2.15 output $'foo\' x' and on shbot (the Linux IRC bot used in #bash) *both* 3.2.48 and 5.2.9 output $'foo\' -- vq