Mathescape and escape inside broken?

[kellertuer]

Something in this package is strange. I just spent a lot of time trying to get math into this. An MWE

\documentclass{standalone}
\usepackage{amsmath, amssymb, jlcode}
\begin{document}
\lstinline{LieGroups.jl}
% does not work just prints the code from `{...}` as is
\lstinline[escapeinside={(*}{*)}]{inner((*$\mathfrak g$*), X, Y)}
% errors:
\lstinline[mathescape]{norm((*$\mathfrak g$*), X)}
\end{document}

While this does work if I load listings (i.e. load that instead of jlcode). Why? How can I do math in here?

[kellertuer]

As an addition: Sure I would use UTF8 symbols and XeLaTeX, but I am not sure JuliaCon proceedings (which use this package) are expected to be compiled with XeLaTeX, their rules seem to state, that complication is done with pdflatex. In that, I have to write the gothic g in math.

[wg030]

I don't want to get to technical here, but since we literate a lot of stuff this package can't really support mathescape by its desgin.

However, as far as I can see what you want is to display this letter, right?!

If that's the case you can add this math symbol (and all other symbols that are missing) yourself to the package. For example, starting from line 1897 in jlcode.sty I have already added all latin fraktur capital letters, so if you need support for the latin fraktur small letters, you could add them yourself in complete analogy.

[kellertuer]

“By design”? Uff that sounds like a rough design.

To be honest, while I did contribute a bit here with #29, I actually added those letters back then, but I moved to using minted for most my projects, since it is much more flexible in code markup and colouring, and I usually hit walls using this package (sorry).

Also telling me to add them myself, would not only mean editing stuff here, but also over on the Journal side? Not sure that is possible.

But then, I probably stick to just using several \verbs for my use case here (within JuliaCon proceedings actually), when this package is so super restrictive not disable options from a package that it is build upon. I feel that is not a good design here then.

[wg030]

Well, the desgin was actually kind of forced by the choice to go with the listings package, which in turn was not really desgined to support special unicode characters.

Also telling me to add them myself, would not only mean editing stuff here, but also over on the Journal side? Not sure that is possible.

No idea, how the Journal side works with this package, but if they always use the current version of jlcode, you would only need to edit stuff here and I would, of course, merge your edits. But I understand that his is probably to much efforts when you have a quicker alternative way to get what you want.

[kellertuer]

Currently everything is hard coded \verbs, because I wasted too much time trying to fix the math escape. I still do not understand why that is not possible. That to some extend solves the problem but its a bit like the 80s called and want their LaTeX back.

I can try to find time adding that, but for now, I am fixing bugs people ask me to fix on my package and when I report bugs I am asked to fix them as well... I can not yet say when I find time.

[kellertuer]

I am also not convinced math escape has to be disabled here, bit fixing that on a package here, I do neither use nor currently recommend, that is really beyond my free time spent on open source code.