[matheusmoreira]

I love Earley's algorithm! I wonder why it's so rare. Nearley is the only implementation I know. Why? It handles every possible grammar and yet it is a relatively simple algorithm. Would make an excellent choice for a standard library parse(grammar, input) function.

Is it because the papers are hard to understand? All those symbols make no sense to the uninitiated. I definitely struggled to gain an understanding of how it works.