January 2013
Intermediate to advanced
328 pages
8h 5m
English
Content preview from The Definitive ANTLR 4 Reference, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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What’s So Cool About ANTLR V4?
The v4 release of ANTLR has some important new capabilities that reduce the learning curve and make developing grammars and language applications much easier. The most important new feature is that ANTLR v4 gladly accepts every grammar you give it (with one exception regarding indirect left recursion, described shortly). There are no grammar conflict or ambiguity warnings as ANTLR translates your grammar to executable, human-readable parsing code. If you give your ANTLR-generated parser valid input, the parser will always recognize the input properly, no matter how complicated the grammar. Of course, it’s up to you to make sure the grammar accurately describes the language in question.
ANTLR parsers use a new ...
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