From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Noam Postavsky Newsgroups: gmane.emacs.bugs Subject: bug#29854: 25.3; Eshell buffer editing gets slower as colored output grows Date: Wed, 03 Jan 2018 08:33:53 -0500 Message-ID: <87incjrrr2.fsf@users.sourceforge.net> References: <87vagt6a7d.fsf@gmail.com> <87mv1ytjpg.fsf@users.sourceforge.net> <87r2r8s72c.fsf@users.sourceforge.net> <87tvw3cgh9.fsf@gmail.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1514986402 3068 195.159.176.226 (3 Jan 2018 13:33:22 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 3 Jan 2018 13:33:22 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.90 (gnu/linux) Cc: 29854@debbugs.gnu.org To: Pierre Neidhardt Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Jan 03 14:33:18 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eWjAM-0008Kv-Ap for geb-bug-gnu-emacs@m.gmane.org; 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Wed, 03 Jan 2018 05:33:56 -0800 (PST) Original-Received: from zebian ([45.2.119.34]) by smtp.googlemail.com with ESMTPSA id o71sm775127itb.28.2018.01.03.05.33.54 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 03 Jan 2018 05:33:55 -0800 (PST) In-Reply-To: <87tvw3cgh9.fsf@gmail.com> (Pierre Neidhardt's message of "Wed, 03 Jan 2018 12:46:26 +0100") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:141744 Archived-At: Pierre Neidhardt writes: >> The question is then whether there is some case where using overlays is >> necessary, or is it just a pessimization? For reference, I took the >> text property using definition from man.el (so it at least works for >> that case): > > Any idea what the original intent was? > I can't seem to see why an overlay would be needed for Eshell's output. Hard to say. It might just be a case of going with ansi-color.el's default. ansi-color-apply-on-region was changed to use overlays in [1: 0e3c1e3ea6], but it's unclear why. The commit message just says (ansi-color-apply-on-region): Use extents or overlays instead of text-properties. [1: 0e3c1e3ea6]: 2001-01-09 11:38:28 +0000 (ansi-color-process-output): Use markers instead of positions for start and end of region.[...] https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=0e3c1e3ea6a27e20d0252661336afe9fc84b21f5