Syntax
ANTLR-based
ANTLR4 ANother Tool for Language Recognition v4
ANTLR3 ANother Tool for Language Recognition v3
Parser generators
Bison Bison / Yacc - ISO/IEC compatible
BNF-based
BNF Backus-Naur Form
ABNF Augmented BNF — RFC 5234
EBNF Extended BNF — ISO 14977
WBNF W3C Extended BNF
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DIAGRAM
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