Eli Zaretskii <eliz@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Received: (at 67269) by debbugs.gnu.org; 19 Nov 2023 06:38:24 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Nov 19 01:38:24 2023 Received: from localhost ([127.0.0.1]:49811 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1r4bRo-0005uH-6u for submit <at> debbugs.gnu.org; Sun, 19 Nov 2023 01:38:24 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:59196) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1r4bRl-0005tp-Er; Sun, 19 Nov 2023 01:38:23 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1r4bRe-0001AJ-Ni; Sun, 19 Nov 2023 01:38:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=qecxywyNtmDS2Bri6G30zFqXbBm5RKVHZZlBROKVV7w=; b=qYpQCXzcRwEL ld3S838eGdK1gdPWA2WdK9++vyAAZIg0pKWCLmh1540wPxxuVBYMB0aEk3UTHiuqYAz+bIhLYEiAM uRTkXe5w9gXFOdMJCAM8M0feecR8RXlzjBOcW7879jLnlanoiZ366WQ/DVW6kC7jjGJIIZGvwakif ovtY4TVi3ogOzb/49xqc/yUE4iEavUAwaas83n1RmZM4L4zf7b8lPATz9nxzqJcsVIJZIBxaYPIIT 7h97MfZ39Kweh7JDZXs8/saAhrx10dsbadOameKYMmdRAryOQYx2lD0uH0RuFy2NYfZ5eQJoCWt+q Tr0IctzWfgw6S4k+M2z2lw==; Date: Sun, 19 Nov 2023 08:37:55 +0200 Message-Id: <83leaul03g.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Po Lu <luangruo@HIDDEN> In-Reply-To: <87jzqejn8f.fsf@HIDDEN> (bug-gnu-emacs@HIDDEN) Subject: Re: bug#67269: 30.0.50; italic face fallback does not assume italic properties References: <87jzqejn8f.fsf.ref@HIDDEN> <87jzqejn8f.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 67269 Cc: 67269 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) tags 67269 notabug thanks > Date: Sun, 19 Nov 2023 14:01:04 +0800 > From: Po Lu via "Bug reports for GNU Emacs, > the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> > > When the default font doesn't supply an Italic variant, the italic face > is assigned an underline propery in its place. But when the italic face > is merged with another face whose font does supply such a variant, the > underline is applied all the same while the slant that would ideally be > also is disregarded. > > Hence if the default font is set to Droid Sans Mono (with no Italic > variant) while shr-text is set to Times New Roman, italic text rendered > by shr: > > (shr-text italic) > > is underlined rather than slanted. Moreover, no underline or slant is > manifested if there is an Italic variant to the default font but not the > face being merged with italic, depriving such italic text of any visual > distinctiveness. I see no bug here. You are talking about faces defined with defface, which are always based on the default font. Given that fact, there's not much we can do here, except perhaps keep the :slant attribute together with :underline (although that's questionable, and I'm not sure we should do that). Removing the underline when a non-default font does have the italic variant is not TRT, since it will cause parts of the text appear with an underline and other parts without it. Basically, choosing a default font that doesn't have the italic variant is simply a bad idea, so what you describe is a cockpit error, not an Emacs bug.
bug-gnu-emacs@HIDDEN:bug#67269; Package emacs.
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Hermes SMTP Server) with ESMTPA ID 943b02deb19ab224af37d73dc6726b05; Sun, 19 Nov 2023 06:01:17 +0000 (UTC) From: Po Lu <luangruo@HIDDEN> To: bug-gnu-emacs@HIDDEN Subject: 30.0.50; italic face fallback does not assume italic properties Date: Sun, 19 Nov 2023 14:01:04 +0800 Message-ID: <87jzqejn8f.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain References: <87jzqejn8f.fsf.ref@HIDDEN> X-Mailer: WebService/1.1.21896 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 713 Received-SPF: pass client-ip=66.163.185.146; envelope-from=luangruo@HIDDEN; helo=sonic305-20.consmr.mail.ne1.yahoo.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: 1.7 (+) X-Spam-Report: Spam detection software, running on the system "debbugs.gnu.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: When the default font doesn't supply an Italic variant, the italic face is assigned an underline propery in its place. But when the italic face is merged with another face whose font does supply such [...] Content analysis details: (1.7 points, 10.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (luangruo[at]yahoo.com) -0.0 SPF_HELO_PASS SPF: HELO matches SPF record 0.7 SPF_NEUTRAL SPF: sender does not match SPF record (neutral) 1.0 FORGED_YAHOO_RCVD 'From' yahoo.com does not match 'Received' headers -0.0 T_SCC_BODY_TEXT_LINE No description available. X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: 0.7 (/) When the default font doesn't supply an Italic variant, the italic face is assigned an underline propery in its place. But when the italic face is merged with another face whose font does supply such a variant, the underline is applied all the same while the slant that would ideally be also is disregarded. Hence if the default font is set to Droid Sans Mono (with no Italic variant) while shr-text is set to Times New Roman, italic text rendered by shr: (shr-text italic) is underlined rather than slanted. Moreover, no underline or slant is manifested if there is an Italic variant to the default font but not the face being merged with italic, depriving such italic text of any visual distinctiveness.
Po Lu <luangruo@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#67269; Package emacs.
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