Can I get the REPL in Juno (or anywhere in Windows) to show Unicode above U+010000?

Tooling Juno
1

If I use the bold face characters (as used in Unitful and entered with \bfM) such as

julia> c
'�': Unicode U+01d40c (category Lu: Letter, uppercase)

they display correctly in the Workspace window
Clipboard01
but do not display correctly in the REPL, either in Juno or in a command shell.

I don’t think it is a font issue because it is displayed correctly in the Workspace (although it’s also not displaying here in my browser even in the preview pane, instead giving me a question-mark-in-diamond.

Some googling suggests that Windows console doesn’t support Unicode above the BMP (Basic Multilingual Plane) meaning it only supports characters from 0x0000 up to 0x10000.

Is there a workaround (aside from installing Linux, virtually installing Linux, etc.)?

2

I feel like it is a font issue. � is the “unknown” or unrepresentable character. Did you change the font used by the editor? Or are you using the default?

3

The issue is that the Windows console does not support fallback fonts. See e.g. \mscr unicode character display in REPL with Windows - #13 by stevengj

Workaround: use a different terminal. Either mintty or the new Windows Terminal or …

4 Likes
4

Thanks for that link - I can confirm that julia, run directly from git-bash under Windows does display those characters correctly (as does my phone under Termux!), but if I launch Atom from bash (tried several different ways), it still doesn’t display them correctly in the REPL window.