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Re: Font support of UTF-8 chars differ between w32 Emacs and Cygwin Emacs

On 10/09/2014 19:49, Ken Brown wrote:
On 9/3/2014 8:41 AM, Sebastien Vauban wrote:

As you can see on, 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).



Any idea why such differences?

Best regards,


I've had a chance to look at this now, and it doesn't seem to have
anything to do with emacs.

I've created a text file 25b7.txt (attached) with a single line
containing the white right-pointing-triangle.  When I issue the command
"cat 25b7.txt" in a mintty terminal, I sometimes see an empty rectangle
(meaning the character can't be displayed), and I sometimes see the
white right-pointing triangle, depending on which font I select in the
mintty options.

mintty is using windows fonts as such it needs
that MS provides a full set.

Using charmap (windows Character Map) I can see that 25B7
is not available in Consolas while for example 25B8 (small black )
and 25BA (large black) are available.
In other fonts (like Courier new) only 25BA is available and 25B8
is missing...

I don't know enough about fonts and UTF-8 encoding to be able to shed
any more light on this.  Maybe someone else can help.


It seems not a cygwin fault...


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