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.devel Subject: Re: How to add pseudo vector types Date: Mon, 26 Jul 2021 15:45:56 -0400 Message-ID: References: <83h7gw6pyj.fsf@gnu.org> <83y2a764oy.fsf@gnu.org> <83v95b60fn.fsf@gnu.org> <00DD5BFE-D14E-449A-9319-E7B725DEBFB3@gmail.com> <83r1fz5xr9.fsf@gnu.org> <1AAB1BCC-362B-4249-B785-4E0530E15C60@gmail.com> <83czri67h0.fsf@gnu.org> <46BBFF88-76C3-4818-8805-5437409BEA93@gmail.com> <83wnpq46uk.fsf@gnu.org> <533BD53B-4E85-4E9E-B46A-346A5BBAD0F5@gmail.com> <258CB68D-1CC1-42C8-BDCD-2A8A8099B783@gmail.com> <1a776770-50b7-93cd-6591-c9a5b3a56eb8@gmail.com> <8335s64v10.fsf@gnu.org> <5380C92B-6C15-4490-A1E0-1C3132DBB16A@gmail.com> <83k0li2shw.fsf@gnu.org> <86wnpg82v3.fsf@stephe-leake.org> <83lf5wyn0z.fsf@gnu.org> <86pmv66yqg.fsf@stephe-leake.org> <83a6maw705.fsf@gnu.org> <83r1fluikh.fsf@gnu.org> <88007ACB-31E5-440F-876D-9F43C8EE02CC@gmail.com> <83pmv4vr9u.fsf@gnu.org> <2F54BF2A-702C-414B-8B9A-12AEAFBF4DA2@gmail.com> <83im0wvq4f.fsf@gnu.org> Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.60.0.2.21\)) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31391"; mail-complaints-to="usenet@ciao.gmane.io" Cc: cpitclaudel@gmail.com, Stephen Leake , 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 Mon Jul 26 21:47:12 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 1m86ZD-000841-U9 for ged-emacs-devel@m.gmane-mx.org; Mon, 26 Jul 2021 21:47:11 +0200 Original-Received: from localhost ([::1]:55102 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m86ZC-0006q9-UY for ged-emacs-devel@m.gmane-mx.org; Mon, 26 Jul 2021 15:47:10 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:47140) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m86Y5-0004Jf-8k for emacs-devel@gnu.org; Mon, 26 Jul 2021 15:46:01 -0400 Original-Received: from mail-qv1-xf2a.google.com ([2607:f8b0:4864:20::f2a]:43703) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1m86Y3-0000At-MB; Mon, 26 Jul 2021 15:46:01 -0400 Original-Received: by mail-qv1-xf2a.google.com with SMTP id db14so4948933qvb.10; Mon, 26 Jul 2021 12:45:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=uBF6SDupDsQ5MJa2wxohWRMRlsXFMELmCnAEr5WPDOY=; b=Dg2t9w6drfRasCwkQ3ttNvDmTD+bez9jsyXeg91bOyiAN39lMUJpqU52Xo8qaJMG3V GRw/VKKIXlbz5/3D2cgr0zTnLG+5zNXFHCWORXno869VXf/Kz/4nhx71oNM8WBL87K2C cjhjQBM/Tt+16ylwo1de1Z3Y05dTjHfXqasYcla09wdi8LhCIArMxzsh0Mg8F4q4w7uu QqVZ966V1H6dgLLJgXXhM9N0bo8c4XIcEpIKyhMxPfbLiSui08vukIi0rxciKZidP6Vy 1AgCC8EGjCL+QeLx4dwRXYjcaPjTqNBCsvXIY/qXP8s6JpIe6PuHCJ33j0NzMqLEyRFb Q1qw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=uBF6SDupDsQ5MJa2wxohWRMRlsXFMELmCnAEr5WPDOY=; b=eCe7Ls8hg59dbxy70cFKeUzvxVQqVCcIt/xseQityCRIBeJIzf9jx65l7XSB8FWs4J fWGel4RxI7JfD+ar7xNdduxcSUAfBpSGXI1et7eKDi67kOlwT+qLzU/q9Q0Qa/Tve4Cz hKHs/OfZwXv/a2BsaLTMhOAPoKa36ZlWuWjEiSh8S7cjR0YEkinHfvj1HkMEWC4xvozQ mbgU4rHgDV0IlEhkiXajVy5f3xFj92lLSCVSjGi2QNg9IeokQpay3Jx/rop+mj2dV4mR NGtJIfgSBh6LWvww8o3Bb55YLp45b1sZ+4Olswo0EceJPbIlVGVGkmdAOA+IvzuDUwtS ayYQ== X-Gm-Message-State: AOAM530DZEf9b8M8IzvkmURun6TLChn8ID61VMshoxXcK4XGJLepRZDP UuvFtMctcf5b6GhdiciVvMfX1PqwwIDyhQ== X-Google-Smtp-Source: ABdhPJywLmWFHKKx3VaLtzCbcncELDzjRxppFRA4LSWQps/zyFq7KZInCy513NcrIjtZuh27sdNI6A== X-Received: by 2002:a05:6214:1bcf:: with SMTP id m15mr19222316qvc.55.1627328758069; Mon, 26 Jul 2021 12:45:58 -0700 (PDT) Original-Received: from 2603-7080-0302-635e-540d-2222-3fe9-1314.res6.spectrum.com (2603-7080-0302-635e-540d-2222-3fe9-1314.res6.spectrum.com. [2603:7080:302:635e:540d:2222:3fe9:1314]) by smtp.gmail.com with ESMTPSA id a21sm504158qkk.74.2021.07.26.12.45.57 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 26 Jul 2021 12:45:57 -0700 (PDT) In-Reply-To: <83im0wvq4f.fsf@gnu.org> X-Mailer: Apple Mail (2.3654.60.0.2.21) Received-SPF: pass client-ip=2607:f8b0:4864:20::f2a; envelope-from=casouri@gmail.com; helo=mail-qv1-xf2a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." 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:271665 Archived-At: >>>>> If we let TS look where it wants, we will lose the ability to = restrict >>>>> it to a certain part of the buffer text. This is needed at least = for >>>>> some specialized modes, and is generally desirable, as it gives = Lisp >>>>> programs an easy way to impose such restrictions whenever they = need. >>>>=20 >>>> Tree-sitter lets you set ranges for a parser to limit it self = within, in order to support multi-language files. >>>=20 >>> That's okay, but why would we want to expose this to Lisp as the = means >>> to restrict the accessible portion, when we already have such a = means? >>=20 >> Tree-sitter lets you set multiple discontinuous ranges, whereas = narrowing can only narrow to a single continuous range. Multiple = discontinuous range is much more useful for HTML+CSS+JS, or PHP + HML. >=20 > I understand. But forcing various Emacs features to use these ranges > where a simple restriction will do makes little sense. >=20 > Last time something like these discontinuous ranges was discussed as a > general feature in Emacs, we couldn't come up with an agreed-upon > design and implementation. So adding something like that to Emacs is > not an easy job. We can provide both. Those who needs the more powerful ranges could use = that, and those who don=E2=80=99t can use narrowing. Yuan=