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From: Eli Zaretskii <eliz@gnu.org>
To: Keith David Bershatsky <esq@lawlist.com>
Cc: 20537@debbugs.gnu.org
Subject: bug#20537: 25.0.50; `compose-string-internal` does not work properly on OSX.
Date: Sat, 09 May 2015 21:52:57 +0300	[thread overview]
Message-ID: <83h9rloa5y.fsf@gnu.org> (raw)
In-Reply-To: <m2d229wqrg.wl%esq@lawlist.com>

> Date: Sat, 09 May 2015 11:27:15 -0700
> From: Keith David Bershatsky <esq@lawlist.com>
> 
> The function `compose-string-internal` does not work properly when running Emacs built on OSX.  The following example works on Windows, but not OSX -- it "should be" the letter A with a pipe running through the center of the letter A.  Depending upon the arguments passed to `compose-string-internal` when using Emacs on OSX, the pipe is either displayed to the right (at various distances) or is not visible at all -- it never displays "on top of" the target character.
> 
> (defun test-fn ()
> (interactive)
>   (message (compose-string-internal "A|" 0 (length "A|"))))

Character composition depends on the font driver doing TRT.  Which
font driver does your Emacs use, and does that driver support complex
text layout?





  reply	other threads:[~2015-05-09 18:52 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-09 18:27 bug#20537: 25.0.50; `compose-string-internal` does not work properly on OSX Keith David Bershatsky
2015-05-09 18:52 ` Eli Zaretskii [this message]
2015-05-09 19:25 ` Keith David Bershatsky
2015-05-10 17:34 ` Jan D.
2015-05-12  8:40 ` Keith David Bershatsky

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