Support for LaTeX strings

[Roger-luo]

Does Luxor support LaTeX Strings? Any idea how to support it?

This doesn't work (as expected)

using Luxor, LaTeXStrings

@png begin
       fontsize(30)
       text(L"\alpha", O, halign=:center, valign=:middle)
end

[cormullion]

I think you've asked this before... :) (#32)

If you use the Pro text interface, some of these will work. If you use the Toy text interface, few of them will...

If Cairo/Luxor had decent Pango support, of course... :)

[Roger-luo]

Err, sorry, I guess this might be a solution:

https://github.com/SimonDanisch/UnicodeFun.jl

I notice this is also missed in Gadfly, but I guess some latex symbols is enough for most plotting.

GiovineItalia/Gadfly.jl#1094