First draft grammar of Xeph, a non-pure functional language, a superset of ASDL. Input is needed. (+ guide on reading EBNF)

Please tell me what you honestly think of it --- this is not a 'labor of love' exactly, I only spent a few hours on it. But I think its a strong foundation for what comes next. The implementation, I hope, will be an orgy of love!

I am intentionally not giving an example because I want people to give one, just to make sure how 'comprehensible' my grammar-writing skills are. So, what do you think it looks like?

I will give an example for the upcoming versions.

Also, I think there is not need for an example, it's just your run-off-the-mill ML-like language.

Thanks.