[type]
Parser
[grammar]
grammar T;
a : LETTERS* 'd' {<InputText():writeln()>} ;
// Note the double-backslash to avoid Java passing
// unescaped values as part of the grammar.
LETTERS : ('a'|'\\u{1F600}'..'\\u{1F943}');
[start]a[input]a😉🥂🜀d
[output]
"""a😉🥂🜀d
"""