Segue abaixo a gramática da linguagem reconhecida pelo tiziu expression.
Expression : EOF Instruction EOF Instruction : Factor LogicalInstruction RelationalInstruction ArithmeticInstruction Factor : Identifier Literal Function ( Instruction ) LogicalInstruction : Factor LogicalOperator Factor [LogicalInstructionRest] LogicalInstructionRest : LogicalOperator Factor [LogicalInstructionRest] RelationalInstruction : Factor RelationalOperator Factor ArithmeticInstruction : Factor ArithmeticOperator Factor [ArithmeticInstructionRest] ArithmeticInstructionRest : ArithmeticOperator Factor [ArithmeticInstructionRest] Function : Identifier ( [Arguments] ) Arguments : Instruction [ArgumentsRest] ArgumentsRest : , Arguments