Build a line from tokens and run all logical checks on it.

def check_logical(self):
        """
        Build a line from tokens and run all logical checks on it.
        """
        options.counters['logical lines'] = \
            options.counters.get('logical lines', 0) + 1
        self.build_tokens_line()
        first_line = self.lines[self.mapping[0][1][2][0] - 1]
        indent = first_line[:self.mapping[0][1][2][1]]
        self.previous_indent_level = self.indent_level
        self.indent_level = expand_indent(indent)
        if options.verbose >= 2:
            print self.logical_line[:80].rstrip()
        for name, check, argument_names in self.logical_checks:
            if options.verbose >= 3:
                print '   ', name
            result = self.run_check(check, argument_names)
            if result is not None:
                offset, text = result
                if type(offset) is tuple:
                    original_number, original_offset = offset
                else:
                    for token_offset, token in self.mapping:
                        if offset >= token_offset:
                            original_number = token[2][0]
                            original_offset = (token[2][1]
                                               + offset - token_offset)
                self.report_error(original_number, original_offset,
                                  text, check)
        self.previous_logical = self.logical_line