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/*
 * 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;

/**
 * 

* Commonly used implementations of {@link CharacterPredicate}. Per the interface * requirements, all implementations are thread safe. *

* * @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); } } }




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