From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Alan Mackenzie Newsgroups: gmane.emacs.bugs Subject: bug#23594: 25.0.94; Display errors on Linux tty Date: Sun, 22 May 2016 20:03:04 +0000 Message-ID: <20160522200304.GF2136@acm.fritz.box> References: <20160521104720.GA2987@acm.fritz.box> <83k2in72de.fsf@gnu.org> <20160521190110.GB2987@acm.fritz.box> <83d1of6xe5.fsf@gnu.org> <20160522093813.GA2136@acm.fritz.box> <838tz26rkh.fsf@gnu.org> <20160522161651.GE2136@acm.fritz.box> <83y4725967.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1463947469 9639 80.91.229.3 (22 May 2016 20:04:29 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 22 May 2016 20:04:29 +0000 (UTC) Cc: 23594@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun May 22 22:04:18 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1b4Zbm-0008Tc-3r for geb-bug-gnu-emacs@m.gmane.org; Sun, 22 May 2016 22:04:18 +0200 Original-Received: from localhost ([::1]:44504 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b4Zbi-0001xB-5p for geb-bug-gnu-emacs@m.gmane.org; Sun, 22 May 2016 16:04:14 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:60940) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b4Zba-0001wC-N7 for bug-gnu-emacs@gnu.org; Sun, 22 May 2016 16:04:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b4ZbW-0001X1-GR for bug-gnu-emacs@gnu.org; Sun, 22 May 2016 16:04:05 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:48962) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b4ZbW-0001Ww-DK for bug-gnu-emacs@gnu.org; Sun, 22 May 2016 16:04:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1b4ZbW-0008MR-6l for bug-gnu-emacs@gnu.org; Sun, 22 May 2016 16:04:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Alan Mackenzie Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 22 May 2016 20:04:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 23594 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 23594-submit@debbugs.gnu.org id=B23594.146394738632077 (code B ref 23594); Sun, 22 May 2016 20:04:02 +0000 Original-Received: (at 23594) by debbugs.gnu.org; 22 May 2016 20:03:06 +0000 Original-Received: from localhost ([127.0.0.1]:33066 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1b4Zac-0008LJ-4M for submit@debbugs.gnu.org; Sun, 22 May 2016 16:03:06 -0400 Original-Received: from mail.muc.de ([193.149.48.3]:27761) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1b4ZaZ-0008L9-VB for 23594@debbugs.gnu.org; Sun, 22 May 2016 16:03:04 -0400 Original-Received: (qmail 41641 invoked by uid 3782); 22 May 2016 20:03:02 -0000 Original-Received: from acm.muc.de (p4FC467AB.dip0.t-ipconnect.de [79.196.103.171]) by colin.muc.de (tmda-ofmipd) with ESMTP; Sun, 22 May 2016 22:03:01 +0200 Original-Received: (qmail 6014 invoked by uid 1000); 22 May 2016 20:03:04 -0000 Content-Disposition: inline In-Reply-To: <83y4725967.fsf@gnu.org> User-Agent: Mutt/1.5.24 (2015-08-30) X-Delivery-Agent: TMDA/1.1.12 (Macallan) X-Primary-Address: acm@muc.de X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:118545 Archived-At: Hello, Eli. On Sun, May 22, 2016 at 07:50:24PM +0300, Eli Zaretskii wrote: > > Date: Sun, 22 May 2016 16:16:51 +0000 > > Cc: 23594@debbugs.gnu.org > > From: Alan Mackenzie > > could it be that the display engine is actually outputting a raw > > 0x0a byte > Of course! Isn't that what I said at the beginning of this > discussion? Yes it was, but that was rather a long time ago. ;-) I've been poring over code since then, which left me somewhat confused. It's difficult stuff. > > rather than handling it sensibly? > It was forbidden from doing "sensible" things by the composition > trick. OK. > I think the best fix that is safe for Emacs 25.1 is simply to avoid > displaying the "decomposition" part for low control characters -- they > cannot be composed anyway, AFAIU. OK, I'll come with a patch to do that. -- Alan Mackenzie (Nuremberg, Germany).