We are using Ace in our tools, and we wondered if we can add a custom language definition to create our own autocomplete?
Seems to be possible: Ace - The High Performance Code Editor for the Web
I quickly had a look at the link you shared. It seems to be focused on syntax highlighting but do you think it allows to add your custom autocompletion?
If you think it’s something that should go into Panel, feel free to open a feature request to see what people think about it.