From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Questions about isearch Date: Wed, 25 Nov 2015 20:41:49 +0200 Message-ID: <83lh9lx6oi.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE X-Trace: ger.gmane.org 1448476947 31403 80.91.229.3 (25 Nov 2015 18:42:27 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 25 Nov 2015 18:42:27 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Nov 25 19:42:17 2015 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1a1f1E-0000Af-4k for ged-emacs-devel@m.gmane.org; Wed, 25 Nov 2015 19:42:16 +0100 Original-Received: from localhost ([::1]:47155 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a1f1F-0002St-Jp for ged-emacs-devel@m.gmane.org; Wed, 25 Nov 2015 13:42:17 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44267) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a1f0x-0002QC-8n for emacs-devel@gnu.org; Wed, 25 Nov 2015 13:42:00 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a1f0t-0005Lj-U8 for emacs-devel@gnu.org; Wed, 25 Nov 2015 13:41:59 -0500 Original-Received: from mtaout25.012.net.il ([80.179.55.181]:38428) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a1f0t-0005Lf-M5 for emacs-devel@gnu.org; Wed, 25 Nov 2015 13:41:55 -0500 Original-Received: from conversion-daemon.mtaout25.012.net.il by mtaout25.012.net.il (HyperSendmail v2007.08) id <0NYD00400VJ0CV00@mtaout25.012.net.il> for emacs-devel@gnu.org; Wed, 25 Nov 2015 20:39:11 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([84.94.185.246]) by mtaout25.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NYD00IFEVTBYKA0@mtaout25.012.net.il> for emacs-devel@gnu.org; Wed, 25 Nov 2015 20:39:11 +0200 (IST) X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 80.179.55.181 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:195241 Archived-At: These questions came out of review and extensive updates of the searc= h and replace sections of the Emacs manual: 1. Character folding doesn't catch ligatures, such as =C3=A6 (should = it match the two characters "ae")? 2. It also doesn't match =C3=A4 (a single character) with a=CC=88 (2 = characters, which Emacs correctly composes into 1 grapheme cluster). Should it? 3. With the default value t of isearch-hide-immediately, one match in invisible text is not hidden, and remains on display. To repro: emacs -Q C-x C-f etc/NEWS RET C-c C-q C-s require C-s This leaves the match and its surrounding hidden text on screen. I can understand the rationale, but the doc string doesn't say anything about this feature. On the contrary, it says: Whatever the value, all opened invisible text is hidden again after exiting the search. ^^^ 4. What is the equivalent of case-replace and the letter-case related behavior of replace commands to character folding? E.g., if the replace command specifies to replace "foo" with "bar", and we found "f=C3=B6o", should we replace it with "b=C3=A4r" or something, by ana= logy with letter-case behavior?