Wow. Do you also parse Scheme?
Yes, but currently using brute-force (based on the EBNF, using many infinite look-aheads).
Actually, I'm using antlr, which is a predictive LL(k) parser, so I need to convert from LR to LL. However, my specification is to "accept all valid input and disallow most invalid inputs", and this goal is closer and closer.
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