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What is “lookahead”?

April 26, 2017lookahead

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What is “lookahead”?

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To use JavaCC effectively you have to understand how it looks ahead in the token stream to decide what to do. Your maintainer strongly recommends reading the lookahead mini-tutorial in the JavaCC documentation. (See Question1.9) . The following questions of the FAQ address some common problems and misconceptions about lookahead. Ken Beesley has kindly contributed some supplementary documentation.