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
80
| #!/usr/bin/env php
<?php
/**
* Creates a TOC (table of contents) from a given HTML file.
* <h1> is ignored; all other headings are used.
*
* @author Christian Weiske <cweiske@cweiske.de>
*
* Alternative if you have an XSLT 2 processor: http://xmlplease.com/tocxhtml
*/
if ($argc < 2) {
echo "Please pass a file\n";
exit(1);
}
$file = $argv[1];
if (!file_exists($file)) {
echo "File does not exist: $file\n";
exit(2);
}
if (substr($file, -4) != '.htm') {
echo "build-toc.php works only on htm files\n";
exit(3);
}
$sx = simplexml_load_file($file);
if ($sx === false) {
echo "Failed to load XML\n";
exit(4);
}
$body = $sx->body;
$body->registerXPathNamespace('h', 'http://www.w3.org/1999/xhtml');
$elems = $body->xpath(
'//*['
//XHTML
. 'self::h:h2 or self::h:h3 or self::h:h4 or self::h:h5 or self::h:h6'
//HTML
. ' or self::h2 or self::h3 or self::h4 or self::h5 or self::h6'
. ']'
);
$data = array();
$n = -1;
foreach ($elems as $elem) {
$name = $elem->getName();
$level = (int) $name{1};
$data[] = (object) array(
'title' => (string) $elem,
'id' => (string) $elem['id'],
'level' => $level,
'nextLevel' => null
);
if (++$n >= 1) {
$data[$n - 1]->nextLevel = $level;
}
}
$html = "<ul class=\"toc\">\n";
foreach ($data as $h) {
$i = str_repeat(' ', ($h->level -1) * 2 - 1);
$html .= $i
. '<li><a href="#' . $h->id . '">'
. htmlspecialchars($h->title)
. '</a>';
if ($h->nextLevel > $h->level) {
$html .= "\n"
. $i . ' <ul>' . "\n";
} else {
$html .= '</li>' . "\n";
}
if ($h->nextLevel < $h->level) {
$html .= substr($i, 0, -1) . "</ul>\n"
. substr($i, 0, -2) . "</li>\n";
}
}
$html .= "</ul>\n";
echo $html;
?>
|
