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by tom_mellior 2382 days ago
> Compiles to NFAs.

No. It cannot, since NFAs cannot parse languages that are not regular. Rather, the algorithm executes like a pushdown automaton. I don't think it's correct to call this compilation.

> I cannot decipher from the article the exact expressive power.

To me it seems to suggest being able to parse (exactly) all context-free languages.