1 /*
 2  * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.  Oracle designates this
 8  * particular file as subject to the "Classpath" exception as provided
 9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 package hat.tools.textmodel.tokens;
26 
27 public interface Span {
28     int startOffset();
29 
30     int endOffset();
31 
32     default boolean includes(int offset) {
33         return offset >= startOffset() && offset <= endOffset();
34     }
35     default boolean includes(Span span)  {
36         return includes(span.startOffset()) && includes(span.endOffset());
37     }
38     default boolean overlaps(Span span)  {
39         return includes(span.startOffset()) ||  includes(span.endOffset()) || span.overlaps(this);
40     }
41 
42     record Impl(int startOffset, int endOffset) implements Span {
43 
44     }
45 }