@startebnf title All EBNF elements managed by PlantUML (* Nodes *) litteral = "a"; special = ? a ?; rule = a; (* Edges *) required = a; optional = [a]; zero_or_more = {a}; one_or_more = a, {a}; one_or_more_ebnf = {a}-; zero_or_more_with_separator = [a, {',', a}]; one_or_more_with_separator = a, {',', a}; zero_or_more_with_terminator = {a, ','}; one_or_more_with_terminator = a, ',', {a, ','}; one_or_more_with_terminator_ebnf = {a, ','}-; alternative = a | b; group = (a | b) , c; without_group = a | b , c; @endebnf