emptySetLexer top-level property
identifies emptySets
Implementation
final Parser<EmptySetParser> emptySetLexer =
(char('{') & whitespace().optional() & char('}'))
.flatten()
.map((_) => EmptySetParser());
identifies emptySets
final Parser<EmptySetParser> emptySetLexer =
(char('{') & whitespace().optional() & char('}'))
.flatten()
.map((_) => EmptySetParser());