https://tomcat.apache.org/: Tomcat Connectors and HTTP parser 
/*
 *  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.tomcat.util.modeler;

public class Util {

    private Util() {
        // Utility class. Hide default constructor.
    }

    public static boolean objectNameValueNeedsQuote(String input) {
        for (int i = 0; i < input.length(); i++) {
            char ch = input.charAt(i);
            if (ch == ',' || ch == '=' || ch == ':' || ch == '*' || ch == '?') {
                return true;
            }
        }
        return false;
    }
}