Improper color markup on Lua

[Otto Robba]

I was testing Scratch as a lua editor (the terminal extension makes it pretty good at that! :D) and I noticed a few oddities. This one is about the color markup in it.

The operators (both boolean and arithmetic), variables, loops, numbers and brackets are all colored the same.

This greatly hinders usability, specially with long, concatenated strings (line 27 on the attached screenshot).

The printscreen shows how it looks on Scratch and how it looks on ZeroBrane, for reference.
I am willing to help properly color the markup but I know nothing of Vala.

[Cameron Norman (cameronnemo)]

It looks like there is simply no syntax highlighting for those elements.

[Robert Roth (evfool)]

Bug reported upstream, as this is not a scratch issue, this should affect gedit too, and everything using gtksourceview.

[Otto Robba (otto-ottorobba)]

I modified the original lang file for Lua, now it includes proper syntax highlighting for most cases (might be some oddities that escaped my regex powers).

[Otto Robba (otto-ottorobba)]

Submitted the file upstream - hopefully it will get fixed there soon.
Either way, adding the file to /home/username/.local/share/gtksourceview-3.0/language-specs fixes it, if anyone is in a hurry to use it.

[Otto Robba (otto-ottorobba)]

I uploaded a patch into upstream, Scratch should get it in the next gtkSourceview update - marking bug as fixed :)