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posting-host="blaine.gmane.org:116.202.254.214"; logging-data="1614"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (windows-nt) Cc: Yuan Fu , cpitclaudel@gmail.com, monnier@iro.umontreal.ca, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Jul 30 00:59:29 2021 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1m9Ezv-0000BI-R8 for ged-emacs-devel@m.gmane-mx.org; Fri, 30 Jul 2021 00:59:28 +0200 Original-Received: from localhost ([::1]:55264 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m9Ezu-0007w8-Eh for ged-emacs-devel@m.gmane-mx.org; Thu, 29 Jul 2021 18:59:26 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46978) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m9EzI-00077t-K8 for emacs-devel@gnu.org; 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:271802 Archived-At: Eli Zaretskii writes: >> From: Yuan Fu >> Date: Wed, 28 Jul 2021 12:36:33 -0400 >> Cc: Eli Zaretskii , >> emacs-devel , >> Cl=C3=A9ment Pit-Claudel , >> monnier@iro.umontreal.ca >>=20 >> > So don't send a change that deletes the hidden text; just send changes >> > in the visible part of the text (that's the only place the user can ma= ke >> > changes). tree-sitter will only run the scanner on the change regions, >> > so it will only request text from the visible part of the buffer; >> > all the requests will succeed. >>=20 >> Then we are not hiding the hidden text from tree-sitter. The >> implementation you described, IIUC, is essentially do nothing >> special when the buffer is narrowed. > > If the TS parser is called while the narrowing is in effect, it will > be unable to access text beyond BEGV..ZV. So in that case the > narrowing _will_ affect TS. Please read again; TS is affected in principle, but in practice, in the absence of programming errors, it will never try to access text outside the narrowing, so it won't notice. --=20 -- Stephe