Contextual Autocomplete

[Yusuf Ismail]

Introduce some kind of system that allows autocompletion contextual to the command being used.

E.g autocomplete enum names when the argument is an enum, etc

[José Arias Coso]

Or define function that return a list of posible items when a parameter of define type is needed (passes as parameters the command and the other parameters)

[Yusuf Ismail]

This is now finished for V2.6.0, including a user extensible system for suggestion sources and filters