Method __execute

PyBasic/program.py:281–320

Execute the statement with the specified line number :param line_number: The line number :return: The FlowSignal to indicate to the program how to branch if necessary, None otherwise

(self, line_number, infile,tmpfile)

        return statement

    def __execute(self, line_number, infile,tmpfile):
        """Execute the statement with the
        specified line number

        :param line_number: The line number

        :return: The FlowSignal to indicate to the program
        how to branch if necessary, None otherwise

        """
        if line_number not in self.__program.keys():
            raise RuntimeError("Line number " + line_number +
                               " does not exist")

        statement = self.getprogram(line_number,infile,tmpfile)

        number_of_stmts = 1
        for e in statement:
            if e.category == Token.COLON:
                number_of_stmts += 1
            elif e.category == Token.IF:
                # any colons after an IF statement are seperators for the THEN or ELSE clause
                # and will be processed by the recursive call to PARSE within the PARSE method
                break

        for cstmt_number in range(0,number_of_stmts):
            try:
            #if True:
                tmp_flow = self.__parser.parse(statement, line_number, cstmt_number, infile, tmpfile, self.__data)

            except RuntimeError as err:
                raise RuntimeError(str(err))

            except KeyboardInterrupt:
                return FlowSignal(ftype=FlowSignal.STOP)

            if tmp_flow:
                break

        return tmp_flow


    def execute(self,infile,tmpfile):