From: Richard Wordingham <richard.wordingham@ntlworld.com>
To: 20173@debbugs.gnu.org
Subject: bug#20173: 24.4; Rendering misallocates combining marks on ligatures
Date: Mon, 23 Mar 2015 01:06:26 +0000 [thread overview]
Message-ID: <20150323010626.530d3395@JRWUBU2> (raw)
When a ligature of two base characters has two combining marks on the
first component but none on the second, the second combining mark is
rendered as though it applied to the second component. A good example
is the Arabic sequence لَّا (lam, shadda, fatha, alef - <U+0644, U+0651,
U+064E, U+0627), where the shadda is rendered on the lam part of
lam-alif ligature and the fatha on the alif part. This problem is not
restricted to right-to-left scripts; I encountered the problem when
debugging left-to-right rendering. Lam-alif is one of the most
reliably generated ligatures bearing marks on different components.
next reply other threads:[~2015-03-23 1:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-23 1:06 Richard Wordingham [this message]
2015-03-23 15:38 ` bug#20173: 24.4; Rendering misallocates combining marks on ligatures Eli Zaretskii
2015-03-23 22:41 ` Richard Wordingham
2015-03-24 3:42 ` Eli Zaretskii
2015-03-24 8:28 ` Richard Wordingham
2015-03-24 17:03 ` Eli Zaretskii
2015-03-24 20:22 ` Richard Wordingham
2015-03-27 9:04 ` Richard Wordingham
2015-03-27 9:54 ` Eli Zaretskii
2020-08-17 22:45 ` Stefan Kangas
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150323010626.530d3395@JRWUBU2 \
--to=richard.wordingham@ntlworld.com \
--cc=20173@debbugs.gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).