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David Majda 1b2279e026 Error handling: Make predicates always return |undefined| ... After making the |?| operator return |null| instead of an empty string in the previous commit, empty strings were still returned from predicates. This didn't make much sense. Return value of a predicate is unimportant (if you have one in hand, you already know the predicate succeeded) and one could even argue that predicates shouldn't return any value at all. The closest thing to "return no value" in JavaScript is returning |undefined|, so I decided to make predicates return exactly that. Implements part of #198.		11 years ago
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generate-bytecode.js	Error handling: Make predicates always return |undefined|	11 years ago
generate-javascript.js	Error handling: Use a special value (not |null|) to indicate failure	11 years ago
remove-proxy-rules.js	Move options handling from passes to |PEG.compiler.compile|	12 years ago
report-left-recursion.js	Make |GrammarError| require work also in the browser version	12 years ago
report-missing-rules.js	Make |GrammarError| require work also in the browser version	12 years ago