001/*
002 * Java Genetic Algorithm Library (jenetics-7.2.0).
003 * Copyright (c) 2007-2023 Franz Wilhelmstötter
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 *
017 * Author:
018 *    Franz Wilhelmstötter (franz.wilhelmstoetter@gmail.com)
019 */
020package io.jenetics.ext.internal.util;
021
022/**
023 * @author <a href="mailto:franz.wilhelmstoetter@gmail.com">Franz Wilhelmstötter</a>
024 * @version 5.0
025 * @since 5.0
026 */
027public final class Names {
028        private Names() {
029        }
030
031        /**
032         * Checks whether the given {@code name} is a valid (Java) identifier.
033         *
034         * @param name the name to check
035         * @return {@code true} if the given {@code name} is a valid identifier,
036         *         {@code false} otherwise
037         */
038        public static boolean isIdentifier(final String name) {
039                if (name.isEmpty()) {
040                        return false;
041                }
042                int cp = name.codePointAt(0);
043                if (!Character.isJavaIdentifierStart(cp)) {
044                        return false;
045                }
046                for (int i = Character.charCount(cp);
047                         i < name.length();
048                         i += Character.charCount(cp))
049                {
050                        cp = name.codePointAt(i);
051                        if (!Character.isJavaIdentifierPart(cp)) {
052                                return false;
053                        }
054                }
055                return true;
056        }
057
058}