1   /* Copyright 2002-2025 CS GROUP
2    * Licensed to CS GROUP (CS) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * CS licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *   http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.orekit.files.ccsds.utils.parsing;
18  
19  import org.orekit.files.ccsds.utils.lexical.MessageParser;
20  import org.orekit.files.ccsds.utils.lexical.ParseToken;
21  
22  /**
23   * Interface for processing parsing tokens for CCSDS NDM files.
24   * <p>
25   * This interface is intended for use as the state in
26   * state design pattern, the {@link MessageParser message parser}
27   * itself being used as the context that holds the active state.
28   * </p>
29   * @see MessageParser
30   *
31   * @author Luc Maisonobe
32   * @since 11.0
33   */
34  public interface ProcessingState {
35  
36      /** Process one token.
37       * @param token token to process
38       * @return true if token was processed, false otherwise
39       */
40      boolean processToken(ParseToken token);
41  
42  }