<i>you can't parse any non-regular language on any given computer</i><p>It is nice how the author completely ignored LALR <i>parsers</i>[1], peg parsers[2], and so on.<p>[1] <a href="http://en.wikipedia.org/wiki/LALR_parser" rel="nofollow">http://en.wikipedia.org/wiki/LALR_parser</a><p>[2] <a href="http://en.wikipedia.org/wiki/Parsing_expression_grammar" rel="nofollow">http://en.wikipedia.org/wiki/Parsing_expression_grammar</a>