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Date: Wed, 03 Sep 2014 10:00:30 -0400
From: Ken Brown <kbrown AT cornell DOT edu>
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To: cygwin AT cygwin DOT com
Subject: Re: Font support of UTF-8 chars differ between w32 Emacs and Cygwin Emacs
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On 9/3/2014 8:41 AM, Sebastien Vauban wrote:
> Hello,
>
> As you can see on http://screencast.com/t/XTTv9DSAC, win32 binaries of
> Emacs and Cygwin Emacs can't display the white right-pointing
> triangle [1] coherently for the same fonts:
>
> - win32 Emacs always can display it, in all fonts,
>
> - Cygwin Emacs can't display it with Consolas, Courier New and Lucida
>    (among others).
>
> MWE:
>
> --8<---------------cut here---------------start------------->8---
> ;; these fonts only display (special?) UTF-8 chars (here: the white
> ;; right-pointing triangle) in win32 binary of Emacs
>
> (modify-all-frames-parameters '((font . "Consolas-10")))
> (char-displayable-p ?\u25B7)
>
> (modify-all-frames-parameters '((font . "Courier New-9")))
> (char-displayable-p ?\u25B7)
>
> (modify-all-frames-parameters '((font . "Lucida Console-9")))
> (char-displayable-p ?\u25B7)
>
> ;; these work for both win32 binary of Emacs + Cygwin Emacs
>
> (modify-all-frames-parameters '((font . "DejaVu Sans Mono-9")))
> (char-displayable-p ?\u25B7)
>
> (modify-all-frames-parameters '((font . "Lucida Sans Typewriter-9")))
> (char-displayable-p ?\u25B7)
> --8<---------------cut here---------------end--------------->8---
>
> Any idea why such differences?

I'm on vacation, but I'll look into this next week when I get back.  In 
the meantime, could you say which version of Cygwin emacs you're using? 
  Is it emacs-X11 or emacs-w32?

Ken

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