From what you have posted it looks like a domain-specific language to me. You didn't post any links to anything that you didn't understand so it's pretty much impossible for anybody to look at those things. But even if you had, it wouldn't really help. When you ask a question on a forum it should be a specific question.
For general advice, I would say if this language is badly documented and too much trouble for you to learn,
you should try something else. I don't know why you decided to learn this language (you didn't mention that aspect of your requirements either) so perhaps that's not helpful advice, but your post doesn't have much scope for any helpful replies.