1// Copyright (c) 2011, Mike Samuel
2// All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions
6// are met:
7//
8// Redistributions of source code must retain the above copyright
9// notice, this list of conditions and the following disclaimer.
10// Redistributions in binary form must reproduce the above copyright
11// notice, this list of conditions and the following disclaimer in the
12// documentation and/or other materials provided with the distribution.
13// Neither the name of the OWASP nor the names of its contributors may
14// be used to endorse or promote products derived from this software
15// without specific prior written permission.
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
19// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
20// COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
22// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
24// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
26// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27// POSSIBILITY OF SUCH DAMAGE.
28
29package org.owasp.html;
30
31import javax.annotation.concurrent.Immutable;
32
33@Immutable
34final class HtmlToken {
35  final int start;
36  final int end;
37  final HtmlTokenType type;
38
39  static HtmlToken instance(int start, int end, HtmlTokenType type) {
40    return new HtmlToken(start, end, type);
41  }
42
43  boolean tokenInContextMatches(String context, String match) {
44    int n = end - start;
45    if (n != match.length()) { return false; }
46    return context.regionMatches(start, match, 0, n);
47  }
48
49  private HtmlToken(int start, int end, HtmlTokenType type) {
50    this.start = start;
51    this.end = end;
52    this.type = type;
53  }
54}
55