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EBNF rules grammar

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Olivier Duhart edited this page Nov 10, 2018 · 5 revisions 
rule : IDENTIFIER COLON clauses

clauses : clause clauses
clauses : clause 

# clause

clause : IDENTIFIER ZEROORMORE
clause : IDENTIFIER ONEORMORE
clause : IDENTIFIER OPTION
clause : IDENTIFIER DISCARD
clause : IDENTIFIER

# group

clause : LPAREN  groupclauses RPAREN
clause : LPAREN  groupclauses RPAREN ONEORMORE
clause : LPAREN  groupclauses RPAREN ZEROORMORE
clause : LPAREN  groupclauses RPAREN OPTION

groupclauses : groupclause groupclauses
groupclauses : groupclause
groupclause : IDENTIFIER
groupclause : IDENTIFIER DISCARD

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