From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Werner LEMBERG Newsgroups: gmane.emacs.bugs Subject: bug#31316: Emacs hangs in `font_open_entity' Date: Mon, 30 Apr 2018 22:20:13 +0200 (CEST) Message-ID: <20180430.222013.1019708698891364018.wl@gnu.org> References: <838t94sot3.fsf@gnu.org> <20180430.192218.1552282367861674790.wl@gnu.org> <83wowoqy1a.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: blaine.gmane.org 1525119547 16233 195.159.176.226 (30 Apr 2018 20:19:07 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 30 Apr 2018 20:19:07 +0000 (UTC) Cc: 31316@debbugs.gnu.org To: eliz@gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Apr 30 22:19:02 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fDFGH-000447-Tm for geb-bug-gnu-emacs@m.gmane.org; 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Mon, 30 Apr 2018 22:20:17 +0200 In-Reply-To: <83wowoqy1a.fsf@gnu.org> X-Mailer: Mew version 6.7 on Emacs 27.0.50 / Mule 6.0 (HANACHIRUSATO) X-Provags-ID: V03:K1:+Fjk52k0gBUgv0up89/NdTrK5eM88sV0rOmRX56DP3CDsQr4G1W Zri3hrmTHOQh5TsNYkTlU0VaWYdO3nv6FiDrDnY0yZfb8RbdhqONVs1ymLu0gJr9+lpi8f5 Izf72dn4A1efrsXNM1Aa+A36s4SL6IOBDczlmNPIPgWiRLoStTgNDjrJjIL1MyNbcr8UCgp NXwrXEerX1Shp13EFN5Hg== X-UI-Out-Filterresults: notjunk:1;V01:K0:daHH/UisrEE=:ZxWFnl6B5g05Sfg2jPi7cl QAYHNnzKhiA0UB/nYTojjW2OCGwnoI1aglqW9alt0QbRRJOJ12muq33NbvD/ud6fPnBjXIyYL t4AjE4Lc8pfR3dhnSTT+Gb1zY9/4nfkkg76s9M/40exaa0Qmfc86cvm1KP6DlTSXanLU02EG9 GsIrUSgNzFUcU1UJ6eJQp9Un18DsxSuTci4F2TAPyKeKQQMSXrTfwj0wMV+lUKGKZnaUFT5mc o214mRNXCRtnPd5KyWCJaaGBBEN2eYPBmOL/+ZNKjMTc+p1MHtzcBpZgqHPc7uYOGjrfB2y6Q 2SuIPqpLUjCk+Z9U3HKMgmGbVw2/xf0o+2uO1ZJooEeKOZ0mQW+wAVVCJ8CRBEgtg5eED7NGQ j+ItRKWYHMpb9KO8K6J1DwO3CIb2vfE3wD8unxgRi6t88tEx6dDP/uhgbBK0Y6mywu/TuIncs 2ZFEo30xw3jHGgdaNyYZT7/nn6Y4r1zI/zJTOKdpPLag/HMrQAuYuXsyczMuiIrbCP9jupFzT S7tocobpxJrwGr0lAeFRKUvM0WKpBy30xmbEtHrEUDRlm5bIQjhdQr8QntsjKsc5D+8xAb35P I283mejH/lWBgQ/MV8YMSFFqTuJ1aTtAij3LOsizFRMSS9cFB9EOj0PLMcSLEOvzjySfkX/sq vR1SQ9CzU6XY79G14FXUs3ewDaoyg3JIbS2leaXSnUCY3FSe961MceGKAyqX1pVVhOAI4eypI VFdvowg3Vo0TyzvUfiEHV317ftmXiavQmx5Bfe73qbVqfhc62YjQOOyzVP3Ke6jvdXirJFHm 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:145880 Archived-At: Eli, thanks for the `pp' tip. >> Sort of, thanks. After waiting a few seconds, Emacs now displays >> three characters, but navigation is hard: it takes a few seconds to >> move from character to character (I guess Emacs tries to reload the >> missing glyph again and again). > > Well, maybe I went overboard with the 100 figure, and we should use > a much smaller number, like 10 or 20? Maybe, yes. I don't know enough of Emacs code to have an opinion on that. > And anyway, some delays are better than an infloop, yes? Certainly. However, I wonder why Emacs doesn't cache this... >> >> Both `average_width' and `height' are always zero for `font' >> >> regardless of `psize'; this effectively makes the above code an >> >> endless loop. >> >> > What kind of strange font has both of these always zero? I have to correct me: Only `average_width' is zero, not value `height'. The font is called `emmentaler-brace.otf' (part of lilypond, containing system braces for musical scores). However, I wonder how this font can ever be considered as a fallback, since its SFNT (3,1) Unicode cmap contains only PUA character codes in the range 0xe100-0xe33f (and `fc-list -v' correctly lists that). In other words, this font definitely doesn't contain anything relevant to the CJK character codes originally reported. Werner