On 8/5/21 10:39 AM, Robert Haas wrote: > On Thu, Aug 5, 2021 at 9:43 AM Andrew Dunstan <and...@dunslane.net> wrote: >> On 8/4/21 6:15 PM, Tom Lane wrote: >>> Here's a little finger exercise that improves a case that's bothered me >>> for awhile. In a POSIX regexp, parentheses cause capturing by default; >>> you have to write the very non-obvious "(?:...)" if you don't want the >>> matching substring to be reported by the regexp engine. >> It's not obscure to perl programmers :-) > Well, I consider myself a pretty fair perl programmer,
I also consider you one :-) Perhaps I should have said "many perl programmers". > and I know > there's a way to do that, but I never do it, and I would have had to > look up the exact syntax. So +1 from me for anything automatic that > avoids paying the overhead in some cases. Yeah, I'm not arguing against the idea. I also have to look it up, mainly because there is such a huge amount of stuff that can follow "(?", do "perldoc perlre" happens a lot when I'm doing that sort of work. cheers andrew -- Andrew Dunstan EDB: https://www.enterprisedb.com