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<fizzie> revert 942e964c81c1
author HackBot
date Sun, 25 Sep 2016 20:17:31 +0000
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Augmented Backus-Naur Form, an update on the popular Backus-Naur Form programming language, introduces support for "Augmented Production", e.g. `foo +::= bar`. The older `::=` syntax will continue to be supported for orthogonal-compatibility purposes.