Return local sign of the operand . For example , in the expr a - b - ( c ) , local signs of the operands are + a , - b , + c
def adjSign ( s , i ) : NEW_LINE INDENT if ( i == 0 ) : NEW_LINE INDENT return True ; NEW_LINE DEDENT if ( s [ i - 1 ] == ' - ' ) : NEW_LINE INDENT return False ; NEW_LINE DEDENT return True ; NEW_LINE DEDENT