/**
* 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.hadoop.yarn.webapp.view;
import java.util.regex.Pattern;
import org.apache.hadoop.classification.InterfaceAudience;
/**
* This class holds utility functions for HTML
*/
@InterfaceAudience.LimitedPrivate({"YARN", "MapReduce"})
public class Html {
static final Pattern validIdRe = Pattern.compile("^[a-zA-Z_.0-9]+$");
public static boolean isValidId(String id) {
return validIdRe.matcher(id).matches();
}
}