01 /*
02 * Java Genetic Algorithm Library (jenetics-5.1.0).
03 * Copyright (c) 2007-2019 Franz Wilhelmstötter
04 *
05 * Licensed under the Apache License, Version 2.0 (the "License");
06 * you may not use this file except in compliance with the License.
07 * You may obtain a copy of the License at
08 *
09 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 * Author:
18 * Franz Wilhelmstötter (franz.wilhelmstoetter@gmail.com)
19 */
20 package io.jenetics.ext.internal;
21
22 /**
23 * @author <a href="mailto:franz.wilhelmstoetter@gmail.com">Franz Wilhelmstötter</a>
24 * @version 5.0
25 * @since 5.0
26 */
27 public final class Names {
28 private Names() {
29 }
30
31 /**
32 * Checks whether the given {@code name} is a valid (Java) identifier.
33 *
34 * @param name the name to check
35 * @return {@code true} if the given {@code name} is a valid identifier,
36 * {@code false} otherwise
37 */
38 public static boolean isIdentifier(final String name) {
39 if (name.isEmpty()) {
40 return false;
41 }
42 int cp = name.codePointAt(0);
43 if (!Character.isJavaIdentifierStart(cp)) {
44 return false;
45 }
46 for (int i = Character.charCount(cp);
47 i < name.length();
48 i += Character.charCount(cp))
49 {
50 cp = name.codePointAt(i);
51 if (!Character.isJavaIdentifierPart(cp)) {
52 return false;
53 }
54 }
55 return true;
56 }
57
58 }
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