ts ::= ws tests ws => ts tests ::= test */ ws ws !::= w* test ::= ^"testcase" "{" input output +/ ws grammar "}" /ws | ^"testcase" "{" input grammar "}" /ws | ^"tibcase" "{" input output +/ ws grammar "}" /ws | ^"tibcase" "{" input grammar "}" /ws output ::= ^"output" quoted ";" /ws input ::= "input" quoted ";" /ws