[NTG-context] What does --errors and --noconsole do?

[Wolfgang Schuster]

Sylvain Hubert schrieb am 04.11.2020 um 16:15:
> Moreover, is there any way to let context give an error at all when 
> encountering something like `\setuppagenumbering[position=footer]` ?

ConTeXt has a function to check assignment list for valid keys but

1. The function doesn't work with the normal setup command,

2. one has to register all valid keys

3. you can't create new keys on the fly which is used in a few styles and

4. it performance issues and leads to a noticeable performance drop.

Wolfgang