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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF 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.apache.commons.lang3.text.translate;
18  
19  import java.io.IOException;
20  import java.io.Writer;
21  
22  /**
23   * Translates codepoints to their XML numeric entity escaped value.
24   *
25   * @since 3.0
26   * @deprecated as of 3.6, use commons-text
27   * <a href="https://commons.apache.org/proper/commons-text/javadocs/api-release/org/apache/commons/text/translate/NumericEntityEscaper.html">
28   * NumericEntityEscaper</a> instead
29   */
30  @Deprecated
31  public class NumericEntityEscaper extends CodePointTranslator {
32  
33      private final int below;
34      private final int above;
35      private final boolean between;
36  
37      /**
38       * <p>Constructs a <code>NumericEntityEscaper</code> for the specified range. This is
39       * the underlying method for the other constructors/builders. The <code>below</code>
40       * and <code>above</code> boundaries are inclusive when <code>between</code> is
41       * <code>true</code> and exclusive when it is <code>false</code>. </p>
42       *
43       * @param below int value representing the lowest codepoint boundary
44       * @param above int value representing the highest codepoint boundary
45       * @param between whether to escape between the boundaries or outside them
46       */
47      private NumericEntityEscaper(final int below, final int above, final boolean between) {
48          this.below = below;
49          this.above = above;
50          this.between = between;
51      }
52  
53      /**
54       * <p>Constructs a <code>NumericEntityEscaper</code> for all characters. </p>
55       */
56      public NumericEntityEscaper() {
57          this(0, Integer.MAX_VALUE, true);
58      }
59  
60      /**
61       * <p>Constructs a <code>NumericEntityEscaper</code> below the specified value (exclusive). </p>
62       *
63       * @param codepoint below which to escape
64       * @return the newly created {@code NumericEntityEscaper} instance
65       */
66      public static NumericEntityEscaper below(final int codepoint) {
67          return outsideOf(codepoint, Integer.MAX_VALUE);
68      }
69  
70      /**
71       * <p>Constructs a <code>NumericEntityEscaper</code> above the specified value (exclusive). </p>
72       *
73       * @param codepoint above which to escape
74       * @return the newly created {@code NumericEntityEscaper} instance
75       */
76      public static NumericEntityEscaper above(final int codepoint) {
77          return outsideOf(0, codepoint);
78      }
79  
80      /**
81       * <p>Constructs a <code>NumericEntityEscaper</code> between the specified values (inclusive). </p>
82       *
83       * @param codepointLow above which to escape
84       * @param codepointHigh below which to escape
85       * @return the newly created {@code NumericEntityEscaper} instance
86       */
87      public static NumericEntityEscaper between(final int codepointLow, final int codepointHigh) {
88          return new NumericEntityEscaper(codepointLow, codepointHigh, true);
89      }
90  
91      /**
92       * <p>Constructs a <code>NumericEntityEscaper</code> outside of the specified values (exclusive). </p>
93       *
94       * @param codepointLow below which to escape
95       * @param codepointHigh above which to escape
96       * @return the newly created {@code NumericEntityEscaper} instance
97       */
98      public static NumericEntityEscaper outsideOf(final int codepointLow, final int codepointHigh) {
99          return new NumericEntityEscaper(codepointLow, codepointHigh, false);
100     }
101 
102     /**
103      * {@inheritDoc}
104      */
105     @Override
106     public boolean translate(final int codepoint, final Writer out) throws IOException {
107         if(between) {
108             if (codepoint < below || codepoint > above) {
109                 return false;
110             }
111         } else {
112             if (codepoint >= below && codepoint <= above) {
113                 return false;
114             }
115         }
116 
117         out.write("&#");
118         out.write(Integer.toString(codepoint, 10));
119         out.write(';');
120         return true;
121     }
122 }