MDL is a lisp descendent so you might find lisp an avenue worth investigating. I'd never seen MDL (or heard of it) before looking at this, but even before I goo

MDL is a lisp descendent so you might find lisp an avenue worth investigating. I'd never seen MDL (or heard of it) before looking at this, but even before I googled to make sure, I could tell that it was heavily based on lisp.