Browsable EBNF Grammar

Grammar extracted by Vadim Zaytsev, see the Grammar Zoo entry for details: §wip/metasyntax/ebnf-sdf/extracted
Source used for this grammar: Paul Klint, W3C version of, EBNF.sdf, 27 March 2007

Summary

• Total 5 production rules with 12 top alternatives and 44 symbols.
• Vocabulary: 13 = 5 nonterminals + 8 terminals + 0 labels + 0 markers.
• Total 5 nonterminal symbols: 5 defined (Grammar, Rule, IdCon, Expression, String), 1 root (Grammar), 0 top (—), 0 bottom (—).
• Total 8 terminal symbols: 0 keywords (—), 0 letters (—), 0 numerics (—), 8 signs ("::=", "(", ")", "?", "*", "+", "|", """ ²).

Syntax

Grammar ::=
	Rule*

Rule ::=
	IdCon "::=" Expression

IdCon ::=
	string

Expression ::=
	IdCon
	String
	"(" Expression ")"
	Expression "?"
	Expression "*"
	Expression "+"
	Expression "|" Expression
	Expression Expression

String ::=
	""" string """

Maintained by Dr. Vadim Zaytsev a.k.a. @grammarware. Last updated in September 2015. [↑]