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1   /**
2    * Copyright (c) 2008-2011, http://www.snakeyaml.org
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package examples.resolver;
18  
19  import java.util.regex.Pattern;
20  
21  import org.yaml.snakeyaml.nodes.Tag;
22  import org.yaml.snakeyaml.resolver.Resolver;
23  
24  public class CustomIntResolver extends Resolver {
25      public static final Pattern PURE_INT = Pattern.compile("^[0-9]+$");
26  
27      /*
28       * do not resolve int if it has underscores
29       */
30      protected void addImplicitResolvers() {
31          addImplicitResolver(Tag.BOOL, BOOL, "yYnNtTfFoO");
32          addImplicitResolver(Tag.FLOAT, FLOAT, "-+0123456789.");
33          // define simple int pattern
34          addImplicitResolver(Tag.INT, PURE_INT, "0123456789");
35          addImplicitResolver(Tag.MERGE, MERGE, "<");
36          addImplicitResolver(Tag.NULL, NULL, "~nN\0");
37          addImplicitResolver(Tag.NULL, EMPTY, null);
38          addImplicitResolver(Tag.TIMESTAMP, TIMESTAMP, "0123456789");
39          addImplicitResolver(Tag.VALUE, VALUE, "=");
40      }
41  }