.. This file is part of Logtalk https://logtalk.org/ SPDX-FileCopyrightText: 1998-2024 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.

.. rst-class:: align-right

built-in method

.. index:: pair: eos//0; Built-in method .. _methods_eos_0:

eos//0

Description

::

eos

This non-terminal matches the end-of-input. It is implemented by checking that the implicit difference list unifies with []-[].

Modes and number of proofs

::

eos - zero_or_one

Errors

(none)

Examples

::

abc --> a, b, c, eos.

.. seealso::

:ref:methods_call_1, :ref:methods_phrase_1, :ref:methods_phrase_2, :ref:methods_phrase_3