Best way to create code completion (DSL) support in IntelliJ?

Hi all,

I've got a small question: we've got an internally developed configuration language, which has some keywords and parameters, a bit like the following:

expect mode=ALL match=TEXT api.returnCode=OK securityproxy.resultCode=OK

Where 'expect' is the keyword, and then followed by some key/value pairs, which are always in this format.

I thought it would be nice if I could use something like GroovyDSL to create some code completion for this. At least for the keywords, but possibly also for the key/value pairs.

I was wondering if something like this was possible in IntelliJ, and, if so, what the best way forward is.

Suggestions welcome!

Kind regards,

Erik pragt