From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.bugs Subject: bug#52394: 27.2; Isearch with char folding enabled =?UTF-8?Q?doesn=E2=80=99t?= match equivalent strings Date: Sat, 11 Dec 2021 21:46:05 +0200 Organization: LINKOV.NET Message-ID: <86czm2ncfe.fsf@mail.linkov.net> References: <86ilvwkidx.fsf@mail.linkov.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="15764"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (x86_64-pc-linux-gnu) Cc: 52394@debbugs.gnu.org To: Andrea Greselin Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Dec 11 21:00:15 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1mw8XX-0003w7-80 for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 11 Dec 2021 21:00:15 +0100 Original-Received: from localhost ([::1]:43602 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mw8XV-0006ra-Iq for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 11 Dec 2021 15:00:13 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:55606) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mw8XM-0006pB-Qb for bug-gnu-emacs@gnu.org; Sat, 11 Dec 2021 15:00:04 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:38488) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mw8XL-0000sp-57 for bug-gnu-emacs@gnu.org; Sat, 11 Dec 2021 15:00:04 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mw8XL-0000Ep-1E for bug-gnu-emacs@gnu.org; Sat, 11 Dec 2021 15:00:03 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Juri Linkov Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 11 Dec 2021 20:00:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 52394 X-GNU-PR-Package: emacs Original-Received: via spool by 52394-submit@debbugs.gnu.org id=B52394.1639252769839 (code B ref 52394); Sat, 11 Dec 2021 20:00:02 +0000 Original-Received: (at 52394) by debbugs.gnu.org; 11 Dec 2021 19:59:29 +0000 Original-Received: from localhost ([127.0.0.1]:50033 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mw8Wm-0000DT-NO for submit@debbugs.gnu.org; Sat, 11 Dec 2021 14:59:28 -0500 Original-Received: from relay6-d.mail.gandi.net ([217.70.183.198]:41861) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mw8Wk-0000D2-Bw for 52394@debbugs.gnu.org; Sat, 11 Dec 2021 14:59:28 -0500 Original-Received: (Authenticated sender: juri@linkov.net) by relay6-d.mail.gandi.net (Postfix) with ESMTPSA id BD572C0002; Sat, 11 Dec 2021 19:59:17 +0000 (UTC) In-Reply-To: (Andrea Greselin's message of "Fri, 10 Dec 2021 12:00:21 +0100") 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" Xref: news.gmane.io gmane.emacs.bugs:222140 Archived-At: >> Please note that when the search string is too long for char folding, >> then it displays the message at the end of the Isearch prompt >> before disabling char folding: > > Emacs doesn’t display any message, I’ve tried catching it with > ‘(setq debug-on-message "Too")’ but got nothing. > >> But the regexp have limitations when matching runs out of >> internal stack space. This is described in the Info node: >> (info "(elisp) Regexp Problems") > > I’ve found the Info node on [1] but not in my Emacs nor on [2]. > Could it be that both the node and the message are new features of > versions > 27.2? Indeed, thanks for pointing to the version number 27.2. That message was added in 28.1. And also the regexp stack size was increased too in 28.1. And the new node exists also only in 28.1. So unless someone has an idea how to implement the search for regexps of arbitrary lengths, this report could be closed.