blob: fb73b9c7faf493755d220bb916cf36a4f64f4670 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
* SonarQube
* Copyright (C) 2009-2025 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.markdown;
import org.sonar.channel.RegexChannel;
/**
* Headings are triggered by equal signs at the beginning of a line. The depth of the heading is determined by the number
* of equal signs (up to 6).
*
* E.g., the input:
* <pre>
* = Level 1
* == Level 2
* === Level 3
* ==== Level 4
* ===== Level 5
* ====== Level 6
* </pre>
* will produce:
* <pre>
* {@literal<h1>}Level 1{@literal</h1>}
* {@literal<h2>}Level 2{@literal</h2>}
* {@literal<h3>}Level 3{@literal</h3>}
* {@literal<h4>}Level 4{@literal</h4>}
* {@literal<h5>}Level 5{@literal</h5>}
* {@literal<h6>}Level 6{@literal</h6>}
* </pre>
* @since 4.4
*
*/
public class HtmlHeadingChannel extends RegexChannel<MarkdownOutput> {
private static final int MAX_HEADING_DEPTH = 6;
public HtmlHeadingChannel() {
super("\\s*=+\\s[^\r\n]*+[\r\n]*");
}
@Override
protected void consume(CharSequence token, MarkdownOutput output) {
int index = 0;
int headingLevel = 0;
while (index < token.length() && Character.isWhitespace(token.charAt(index))) {
index++;
}
while (index < token.length() && token.charAt(index) == '=') {
if (index < MAX_HEADING_DEPTH) {
headingLevel++;
}
index++;
}
while (index < token.length() && Character.isWhitespace(token.charAt(index))) {
index++;
}
CharSequence headingText = token.subSequence(index, token.length());
output.append("<h" + headingLevel + ">");
output.append(headingText.toString().trim());
output.append("</h" + headingLevel + ">");
}
}
|
