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With inspiration from other libraries

There is a newer version: 2.12.15

/**
 * MVEL 2.0
 * Copyright (C) 2007 The Codehaus
 * Mike Brock, Dhanji Prasanna, John Graham, Mark Proctor
 *
 * 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 org.mvel2.templates.res;

import org.mvel2.integration.VariableResolverFactory;
import org.mvel2.templates.TemplateRuntime;
import org.mvel2.templates.util.TemplateOutputStream;

public class CommentNode extends Node {
  public CommentNode() {
  }

  public CommentNode(int begin, String name, char[] template, int start, int end) {
    this.name = name;
    this.end = this.cEnd = end;
  }

  public CommentNode(int begin, String name, char[] template, int start, int end, Node next) {
    this.begin = begin;
    this.end = this.cEnd = end;
    this.next = next;
  }

  public Object eval(TemplateRuntime runtime, TemplateOutputStream appender, Object ctx, VariableResolverFactory factory) {
    if (next != null)
      return next.eval(runtime, appender, ctx, factory);
    else
      return null;
  }

  public boolean demarcate(Node terminatingNode, char[] template) {
    return false;
  }
}