GEdit syntax highlighting for Catala

This is to support syntax highlighting of English and Chinese Catala code in GEdit.

Currently Chinese is not yet supported by Catala. The provided Chinese Catala syntax-highlighting plug-in allows experimenting with Chinese Catala syntax design.

How to use

Copy the file catala.lang to the directory below (create if it does not exist) and then restart GEdit.

~/.local/share/gtksourceview-4/language-specs

I use test.catala_en and test.catala_cn as test files for English and Chinese versions of the syntax respectively.

Reference

Here I collect further resources which helped me.

The code is modelled after the Catala syntax highlighting code for the iro compiler.

The posts below basically say that to provide gedit syntax highlighting support we simply need to write a XML file specifiying the syntax and put it under the gedit syntax highlighting directory.

https://unix.stackexchange.com/questions/4203/how-can-i-write-a-new-syntax-highlighter-for-gedit
https://askubuntu.com/questions/55494/how-do-i-add-a-syntax-highlighter-format-to-gedit
https://github.com/thomasysliu/Gedit-SPICE-syntax-highlighting

Below is a trouble shooting Q&A from a user who successfully added a custom syntax highlighting extension to gedit.

https://askubuntu.com/questions/295559/how-to-add-a-new-language-definition-for-syntax-highlighting-in-gedit

The definitive guide.

https://developer-old.gnome.org/gtksourceview/stable/syntax-highlighting-reference.html