From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Yuan Fu Newsgroups: gmane.emacs.bugs Subject: bug#60953: The :match predicate with large regexp in tree-sitter font-lock seems inefficient Date: Mon, 30 Jan 2023 15:57:05 -0800 Message-ID: References: <7624dddc-4600-9a03-ac8b-d3c9e0ab618c@yandex.ru> <04729838-b7d4-8a08-2b71-12536a28aebb@yandex.ru> <83wn5ag4nc.fsf@gnu.org> <01b5d074-fb12-6b1f-cbfb-5e759833b854@yandex.ru> <838rhpg57n.fsf@gnu.org> <5026D975-983F-4D18-8690-BE139C92825D@gmail.com> <83pmb1emxi.fsf@gnu.org> <6f318afc-ca71-8b7e-c822-52e6635b5718@yandex.ru> <83sffxcfxw.fsf@gnu.org> <83pmb1cbg5.fsf@gnu.org> <2da844d3-ea31-289e-2821-aa174e365ffd@yandex.ru> <6784f9e7-844b-374d-2a1e-8a61cebe0d7e@yandex.ru> <83zga03yne.fsf@gnu.org> <373a575f-c683-1581-c3e6-502e9897fb04@yandex.ru> <83mt603vrc.fsf@gnu.org> <83e58a1b-2e4a-356a-36d8-c756ff105b62@yandex.ru> <83bkmf52va.fsf@gnu.org> <33cad4c1-4af5-37bb-05bc-79a4d9c1a700@yandex.ru> <83wn533lut.fsf@gnu.org> <19892f55-498e-1109-2229-2ddd984849a4@yandex.ru> <83tu073ksp.fsf@gnu.org> Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3731.300.101.1.3\)) Content-Type: text/plain; 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[172.117.161.177]) by smtp.gmail.com with ESMTPSA id f6-20020a17090274c600b001885d15e3c1sm2275808plt.26.2023.01.30.15.57.19 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 30 Jan 2023 15:57:20 -0800 (PST) In-Reply-To: X-Mailer: Apple Mail (2.3731.300.101.1.3) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:254494 Archived-At: > On Jan 30, 2023, at 11:58 AM, Dmitry Gutov wrote: >=20 > On 30/01/2023 21:05, Eli Zaretskii wrote: >>> Date: Mon, 30 Jan 2023 21:01:02 +0200 >>> Cc:casouri@gmail.com,60953@debbugs.gnu.org >>> From: Dmitry Gutov >>>=20 >>> But that doesn't answer the question "Could it?". >> I don't understand what you are asking. "Could" in what sense? >=20 > Like, would it make sense to try to modify it that way, or extract a = function that would do that, without writing it from scratch. >=20 > Or create a new function which would reuse some common code. >=20 > We would call the new function something like match_buffer_substring. = Optionally, also expose it to Lisp. Another option is to change user/programmer=E2=80=99s expectation of the = anchor: we could say that the regexp must match the entirety of the node = text. IOW, \\` \\' are implied.=20 Yuan=