1 ///////////////////////////////////////////////////////////////////////////////////////////////
2 // checkstyle: Checks Java source code and other text files for adherence to a set of rules.
3 // Copyright (C) 2001-2026 the original author or authors.
4 //
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU Lesser General Public
7 // License as published by the Free Software Foundation; either
8 // version 2.1 of the License, or (at your option) any later version.
9 //
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // Lesser General Public License for more details.
14 //
15 // You should have received a copy of the GNU Lesser General Public
16 // License along with this library; if not, write to the Free Software
17 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 ///////////////////////////////////////////////////////////////////////////////////////////////
19
20 package com.puppycrawl.tools.checkstyle.checks;
21
22 import java.nio.charset.StandardCharsets;
23
24 /**
25 * Represents the options for line ending settings.
26 *
27 * @see LineEndingCheck
28 */
29 public enum LineEndingOption {
30
31 /** Unix-style line ending. **/
32 LF("\n"),
33
34 /** Windows-style line ending. **/
35 CRLF("\r\n"),
36
37 /** Mac-style line ending. **/
38 CR("\r");
39
40 /** The line ending representation. */
41 private final String lineEnding;
42
43 /**
44 * Creates a new {@code LineEndingOption} instance.
45 *
46 * @param end the line ending, e.g. "\n"
47 */
48 LineEndingOption(String end) {
49 lineEnding = end;
50 }
51
52 /**
53 * Checks that bytes is equal to the byte representation of this line ending.
54 *
55 * @param bytes a bytes array to check
56 * @return true if bytes is equal to the byte representation of this line ending.
57 */
58 public boolean matches(byte... bytes) {
59 return lineEnding.equals(new String(bytes, StandardCharsets.US_ASCII));
60 }
61
62 }