| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| package org.apache.commons.text; |
| |
| /** |
| * <p> |
| * Commonly used implementations of {@link CharacterPredicate}. Per the interface |
| * requirements, all implementations are thread safe. |
| * </p> |
| * |
| * @since 1.0 |
| */ |
| public enum CharacterPredicates implements CharacterPredicate { |
| |
| /** |
| * Tests code points against {@link Character#isLetter(int)}. |
| * |
| * @since 1.0 |
| */ |
| LETTERS { |
| @Override |
| public boolean test(final int codePoint) { |
| return Character.isLetter(codePoint); |
| } |
| }, |
| |
| /** |
| * Tests code points against {@link Character#isDigit(int)}. |
| * |
| * @since 1.0 |
| */ |
| DIGITS { |
| @Override |
| public boolean test(final int codePoint) { |
| return Character.isDigit(codePoint); |
| } |
| }, |
| |
| /** |
| * Tests if the code points represents a number between 0 and 9. |
| * |
| * @since 1.2 |
| */ |
| ARABIC_NUMERALS { |
| @Override |
| public boolean test(final int codePoint) { |
| return codePoint >= '0' && codePoint <= '9'; |
| } |
| }, |
| |
| /** |
| * Tests if the code points represents a letter between a and z. |
| * |
| * @since 1.2 |
| */ |
| ASCII_LOWERCASE_LETTERS { |
| @Override |
| public boolean test(final int codePoint) { |
| return codePoint >= 'a' && codePoint <= 'z'; |
| } |
| }, |
| |
| /** |
| * Tests if the code points represents a letter between A and Z. |
| * |
| * @since 1.2 |
| */ |
| ASCII_UPPERCASE_LETTERS { |
| @Override |
| public boolean test(final int codePoint) { |
| return codePoint >= 'A' && codePoint <= 'Z'; |
| } |
| }, |
| |
| /** |
| * Tests if the code points represents a letter between a and Z. |
| * |
| * @since 1.2 |
| */ |
| ASCII_LETTERS { |
| @Override |
| public boolean test(final int codePoint) { |
| return ASCII_LOWERCASE_LETTERS.test(codePoint) || ASCII_UPPERCASE_LETTERS.test(codePoint); |
| } |
| }, |
| |
| /** |
| * Tests if the code points represents a letter between a and Z or a number between 0 and 9. |
| * |
| * @since 1.2 |
| */ |
| ASCII_ALPHA_NUMERALS { |
| @Override |
| public boolean test(final int codePoint) { |
| return ASCII_LOWERCASE_LETTERS.test(codePoint) || ASCII_UPPERCASE_LETTERS.test(codePoint) |
| || ARABIC_NUMERALS.test(codePoint); |
| } |
| } |
| } |