def postParse(self, instring, loc, token_list):
        """Create ConfigTree from tokens

        :param instring:
        :param loc:
        :param token_list:
        :return:
        """
        config_tree = ConfigTree(root=self.root)
        for element in token_list:
            expanded_tokens = element.tokens if isinstance(element, ConfigInclude) else [element]

            for tokens in expanded_tokens:
                # key, value1 (optional), ...
                key = tokens[0].strip()
                operator = '='
                if len(tokens) == 3 and tokens[1].strip() in [':', '=', '+=']:
                    operator = tokens[1].strip()
                    values = tokens[2:]
                elif len(tokens) == 2:
                    values = tokens[1:]
                else:
                    raise ParseSyntaxException("Unknown tokens {tokens} received".format(tokens=tokens))
                # empty string
                if len(values) == 0:
                    config_tree.put(key, '')
                else:
                    value = values[0]
                    if isinstance(value, list) and operator == "+=":
                        value = ConfigValues([ConfigSubstitution(key, True, '', False, loc), value], False, loc)
                        config_tree.put(key, value, False)
                    elif isinstance(value, unicode) and operator == "+=":
                        value = ConfigValues([ConfigSubstitution(key, True, '', True, loc), ' ' + value], True, loc)
                        config_tree.put(key, value, False)
                    elif isinstance(value, list):
                        config_tree.put(key, value, False)
                    else:
                        existing_value = config_tree.get(key, None)
                        if isinstance(value, ConfigTree) and not isinstance(existing_value, list):
                            # Only Tree has to be merged with tree
                            config_tree.put(key, value, True)
                        elif isinstance(value, ConfigValues):
                            conf_value = value
                            value.parent = config_tree
                            value.key = key
                            if isinstance(existing_value, list) or isinstance(existing_value, ConfigTree):
                                config_tree.put(key, conf_value, True)
                            else:
                                config_tree.put(key, conf_value, False)
                        else:
                            config_tree.put(key, value, False)
        return config_tree
Create ConfigTree from tokens

        :param instring:
        :param loc:
        :param token_list:
        :return: