[type]
Parser

[grammar]
grammar T;
s @after {<ToStringTree("$ctx"):writeln()>} : e;
e : a=e op=('*'|'/') b=e  {}
  | INT {}
  | '(' x=e ')' {}
  ;
INT : '0'..'9'+ ;
WS : (' '|'\n') -> skip ;

[start]
s

[input]
(1/2)*3

[output]
"""(s (e (e ( (e (e 1) / (e 2)) )) * (e 3)))
"""