Julia style with unicode characters

[mforets]

Hi,

First off, thanks for your work on this great submission template.

I have found that the listings package doesn't like some unicode characters that we use in our Julia library, eg.

\begin{lstlisting}[label=composition, numbers=left, mathescape]
Ω₀ = CH(X₀, Φ*X₀ ⊕ E₊(X₀))
\end{lstlisting}

gives an error.

A workaround is to escape the math commands like this:

\begin{lstlisting}[label=composition, numbers=left, mathescape]
$\Omega_0$ = CH($X_0, \Phi*X_0 \oplus E_+$)
\end{lstlisting}

While this shows the code, I find this is not great because the colors are wrong (all math characters in dollar signs are shown in red).

[mforets]

Another solution is to add the missing characters to the jlcode.sty style sheet. For example, if I add {⊕}{{\ucc{$\oplus$}}}{1} then such symbol can be used in listings, and it is displayed in the expected color (black). Do you accept that we make modifications to such file?