[type] Parser [grammar] grammar T; s @after {} : ID | ID {} ; ID : 'a'..'z'+; WS : (' '|'\t'|'\n')+ -> skip ; [start] s [input] abc [output] Decision 0: s0-ID->:s1^=>1 [errors] """line 1:0 reportAttemptingFullContext d=0 (s), input='abc' """ [flags] showDiagnosticErrors