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This file is part of Logtalk https://logtalk.org/ SPDX-FileCopyrightText: 1998-2023 Paulo Moura <pmoura@logtalk.org> SPDX-License-Identifier: Apache-2.0

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

% start by loading the design pattern sample implementations:

| ?- logtalk_load(design_patterns('behavioral/template_method/loader')). ...

% print the steps for a car trip:

| ?- travel_by_car::journey.

Rent a car Put book, pajamas, and toothbrush in luggage Drive car to destination Put book and pajamas in nightstand and toothbrush in bathroom yes

% print the steps for a airplane trip:

| ?- travel_by_airplane::journey.

Make a flight reservation Put book, pajamas, and toothbrush in luggage Check luggage weight against airline policy Go to the airport and board the airplane Put book and pajamas in nightstand and toothbrush in bathroom yes