/*
 * Copyright (C) 2016 The Guava Authors
 *
 * 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.
 */

package com.google.common.base;

import com.google.common.annotations.GwtIncompatible;
import java.io.Serializable;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

A regex pattern implementation which is backed by the Pattern.
/** A regex pattern implementation which is backed by the {@link Pattern}. */
@GwtIncompatible final class JdkPattern extends CommonPattern implements Serializable { private final Pattern pattern; JdkPattern(Pattern pattern) { this.pattern = Preconditions.checkNotNull(pattern); } @Override CommonMatcher matcher(CharSequence t) { return new JdkMatcher(pattern.matcher(t)); } @Override String pattern() { return pattern.pattern(); } @Override int flags() { return pattern.flags(); } @Override public String toString() { return pattern.toString(); } @Override public int hashCode() { return pattern.hashCode(); } @Override public boolean equals(Object o) { if (!(o instanceof JdkPattern)) { return false; } return pattern.equals(((JdkPattern) o).pattern); } private static final class JdkMatcher extends CommonMatcher { final Matcher matcher; JdkMatcher(Matcher matcher) { this.matcher = Preconditions.checkNotNull(matcher); } @Override boolean matches() { return matcher.matches(); } @Override boolean find() { return matcher.find(); } @Override boolean find(int index) { return matcher.find(index); } @Override String replaceAll(String replacement) { return matcher.replaceAll(replacement); } @Override int end() { return matcher.end(); } @Override int start() { return matcher.start(); } } private static final long serialVersionUID = 0; }