GNU bug report logs - #39595
M-x compile still very line-length weak

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Message #40 received at 39595-done <at> debbugs.gnu.org (full text, mbox):

From: Mattias Engdegård <mattiase <at> acm.org>
To: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
Cc: 39595-done <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>,
 Stefan Monnier <monnier <at> iro.umontreal.ca>,
 Paul Pogonyshev <pogonyshev <at> gmail.com>
Subject: Re: #39595: M-x compile still very line-length weak
Date: Mon, 17 Feb 2020 12:07:37 +0100

16 feb. 2020 kl. 16.37 skrev 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>:

> I bet it does!
> (All I know is I just use Debian sid. So in two years...)

Very well, pushed to emacs-27.

For future work, there seem to be more opportunities for speeding up the remaining regexps. In particular:

* Try to anchor matches at bol when possible.
* Avoid infinite repetitions (of spaces, etc) when the exact amount is known.
* Reject impossible matches as early as possible.

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