From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#54646: 29.0.50; set-fontset-font and font clipping issues Date: Sun, 03 Apr 2022 13:06:49 +0300 Message-ID: <83y20m32h2.fsf@gnu.org> References: <875ynuokqt.fsf@gmail.com> <83r16i7kim.fsf@gnu.org> <871qyiob70.fsf@gmail.com> <83lewq7g1j.fsf@gnu.org> <87czi27bnu.fsf@gmail.com> <83h77e7as6.fsf@gnu.org> <874k3e79mc.fsf@gmail.com> <83fsmy793g.fsf@gnu.org> <87v8vu5j9k.fsf@gmail.com> <837d8a6wm7.fsf@gnu.org> <87lewqjh41.fsf@gmail.com> <83wnga5ap3.fsf@gnu.org> <87a6d69g46.fsf@gmail.com> <87h77dk3zn.fsf@gmail.com> <87a6d5jyat.fsf@gmail.com> <87wng989ym.fsf@gmail.com> <83ilrt5b1v.fsf@gnu.org> <87h77cetq9.fsf@gmail.com> <831qyg6cyt.fsf@gnu.org> <87czi0eoyx.fsf@gmail.com> <83wng84rf8.fsf@gnu.org> <874k3aede0.fsf@gmail.com> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="20297"; mail-complaints-to="usenet@ciao.gmane.io" Cc: rpluim@gmail.com, 54646@debbugs.gnu.org To: Visuwesh Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Apr 03 12:08:10 2022 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 1nax9V-00058C-A3 for geb-bug-gnu-emacs@m.gmane-mx.org; 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Original-Received: from [87.69.77.57] (port=1960 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nax8F-0001d3-Ko; Sun, 03 Apr 2022 06:06:56 -0400 In-Reply-To: <874k3aede0.fsf@gmail.com> (message from Visuwesh on Sun, 03 Apr 2022 14:45:35 +0530) 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:229322 Archived-At: > From: Visuwesh > Cc: rpluim@gmail.com, 54646@debbugs.gnu.org > Date: Sun, 03 Apr 2022 14:45:35 +0530 > > > It's hard to understand what you printed out, or where is the > > difference. It is best to print only the data for the characters for > > which you see display problems, because all the rest is just clutter. > > And in any case, please print the character with the data, otherwise > > it is impossible to know what to compare. > > I used the %c printf format control to print the character in > question---chars[char_idx]. comment-section-good is the "good" case and > comment-section-bad is the "bad" case. The URL I browsed in eww is > https://www.dinamalar.com/news_detail.asp?id=2998931 (isearch for > "Suppon" to get to the comment section). Unfortunately, all the > characters are in raw bytes so if there's a better to print the > characters, please let me know. The %c format is only good for single-byte characters, which these ones aren't. Please use %x to print them (in hex). Also, I think printing everything is too much, and doesn't allow to focus. Please print only when the character's code is one of those involved in the problematic display. "C-u C-x =" will tell you the codepoints of the characters involved: the one that is displayed incorrectly and the ones surrounding it: please add an 'if' clause there which would only print the metrics data for the characters in which we are interested. Something like this: if (chars[char_idx] == CHAR1 || chars[char_idx] == CHAR2 || chars[char_idx] == CHAR3) printf (... where CHAR1, CHAR2, and CHAR3 are the characters involved in the problematic display, according to "C-u C-x =". May I suggest that you show me the code you add to hbfont.c before you run it? This would avoid unnecessary iterations for you. Thanks.