|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* @package s9e\TextFormatter |
|
5
|
|
|
* @copyright Copyright (c) The s9e authors |
|
6
|
|
|
* @license http://www.opensource.org/licenses/mit-license.php The MIT License |
|
7
|
|
|
*/ |
|
8
|
|
|
namespace s9e\TextFormatter\Renderers; |
|
9
|
|
|
|
|
10
|
|
|
use s9e\TextFormatter\Renderer; |
|
11
|
|
|
use XSLTProcessor; |
|
12
|
|
|
|
|
13
|
|
|
class XSLT extends Renderer |
|
14
|
|
|
{ |
|
15
|
|
|
/** |
|
16
|
|
|
* @var XSLTProcessor The lazy-loaded XSLTProcessor instance used by this renderer |
|
17
|
|
|
*/ |
|
18
|
|
|
protected $proc; |
|
19
|
|
|
|
|
20
|
|
|
/** |
|
21
|
|
|
* @var bool Whether parameters need to be reloaded |
|
22
|
|
|
*/ |
|
23
|
|
|
protected $reloadParams = false; |
|
24
|
|
|
|
|
25
|
|
|
/** |
|
26
|
|
|
* @var string The stylesheet used by this renderer |
|
27
|
|
|
*/ |
|
28
|
|
|
protected $stylesheet; |
|
29
|
|
|
|
|
30
|
|
|
/** |
|
31
|
|
|
* Constructor |
|
32
|
|
|
* |
|
33
|
|
|
* @param string $stylesheet The stylesheet used to render intermediate representations |
|
34
|
|
|
*/ |
|
35
|
30 |
|
public function __construct($stylesheet) |
|
36
|
|
|
{ |
|
37
|
30 |
|
$this->stylesheet = $stylesheet; |
|
38
|
|
|
|
|
39
|
|
|
// Capture the parameters' values from the stylesheet |
|
40
|
30 |
|
preg_match_all('#<xsl:param name="([^"]+)"(?>/>|>([^<]+))#', $stylesheet, $matches); |
|
41
|
30 |
|
foreach ($matches[1] as $k => $paramName) |
|
42
|
|
|
{ |
|
43
|
8 |
|
$this->params[$paramName] = htmlspecialchars_decode($matches[2][$k]); |
|
44
|
|
|
} |
|
45
|
|
|
} |
|
46
|
|
|
|
|
47
|
|
|
public function __serialize(): array |
|
48
|
|
|
{ |
|
49
|
|
|
$props = get_object_vars($this); |
|
50
|
|
|
unset($props['proc']); |
|
51
|
|
|
|
|
52
|
4 |
|
if (empty($props['reloadParams'])) |
|
53
|
|
|
{ |
|
54
|
4 |
|
unset($props['reloadParams']); |
|
55
|
4 |
|
} |
|
56
|
|
|
|
|
57
|
4 |
|
return $props; |
|
58
|
|
|
} |
|
59
|
3 |
|
|
|
60
|
|
|
public function __unserialize(array $data): void |
|
61
|
|
|
{ |
|
62
|
4 |
|
foreach ($data as $k => $v) |
|
63
|
|
|
{ |
|
64
|
|
|
$this->$k = $v; |
|
65
|
|
|
} |
|
66
|
|
|
if (!empty($this->reloadParams)) |
|
67
|
|
|
{ |
|
68
|
|
|
$this->setParameters($this->params); |
|
69
|
|
|
$this->reloadParams = false; |
|
70
|
|
|
} |
|
71
|
|
|
} |
|
72
|
2 |
|
|
|
73
|
|
|
/** |
|
74
|
2 |
|
* {@inheritdoc} |
|
75
|
|
|
*/ |
|
76
|
1 |
|
public function setParameter($paramName, $paramValue) |
|
77
|
1 |
|
{ |
|
78
|
|
|
/** |
|
79
|
|
|
* @link https://bugs.php.net/64137 |
|
80
|
|
|
*/ |
|
81
|
|
|
if (strpos($paramValue, '"') !== false && strpos($paramValue, "'") !== false) |
|
82
|
|
|
{ |
|
83
|
|
|
$paramValue = str_replace('"', "\xEF\xBC\x82", $paramValue); |
|
84
|
6 |
|
} |
|
85
|
|
|
else |
|
86
|
|
|
{ |
|
87
|
|
|
$paramValue = (string) $paramValue; |
|
88
|
|
|
} |
|
89
|
6 |
|
|
|
90
|
|
|
if (!isset($this->params[$paramName]) || $this->params[$paramName] !== $paramValue) |
|
91
|
1 |
|
{ |
|
92
|
|
|
$this->load(); |
|
93
|
|
|
$this->proc->setParameter('', $paramName, $paramValue); |
|
94
|
|
|
$this->params[$paramName] = $paramValue; |
|
95
|
5 |
|
$this->reloadParams = true; |
|
96
|
|
|
} |
|
97
|
|
|
} |
|
98
|
6 |
|
|
|
99
|
|
|
/** |
|
100
|
6 |
|
* {@inheritdoc} |
|
101
|
6 |
|
*/ |
|
102
|
6 |
|
protected function renderRichText($xml) |
|
103
|
6 |
|
{ |
|
104
|
|
|
// Load the intermediate representation |
|
105
|
|
|
$dom = $this->loadXML($xml); |
|
106
|
|
|
|
|
107
|
|
|
// Load the stylesheet |
|
108
|
|
|
$this->load(); |
|
109
|
|
|
|
|
110
|
17 |
|
// Perform the transformation and cast it as a string because it may return NULL if the |
|
111
|
|
|
// transformation didn't output anything |
|
112
|
|
|
$this->setLocale(); |
|
113
|
17 |
|
$output = (string) $this->proc->transformToXml($dom); |
|
114
|
|
|
$this->restoreLocale(); |
|
115
|
|
|
|
|
116
|
13 |
|
// XSLTProcessor does not correctly identify <embed> as a void element. We fix it by |
|
117
|
|
|
// removing </embed> end tags |
|
118
|
|
|
$output = str_replace('</embed>', '', $output); |
|
119
|
|
|
|
|
120
|
13 |
|
// Remove the \n that XSL adds at the end of the output, if applicable |
|
121
|
13 |
|
if (substr($output, -1) === "\n") |
|
122
|
13 |
|
{ |
|
123
|
|
|
$output = substr($output, 0, -1); |
|
124
|
|
|
} |
|
125
|
|
|
|
|
126
|
13 |
|
// Force HTML attributes to use double quotes to be consistent with the PHP renderer |
|
127
|
|
|
if (strpos($output, "='") !== false) |
|
128
|
|
|
{ |
|
129
|
13 |
|
$output = $this->normalizeAttributes($output); |
|
130
|
|
|
} |
|
131
|
13 |
|
|
|
132
|
|
|
return $output; |
|
133
|
|
|
} |
|
134
|
|
|
|
|
135
|
13 |
|
/** |
|
136
|
|
|
* Create an XSLTProcessor and load the stylesheet |
|
137
|
2 |
|
* |
|
138
|
|
|
* @return void |
|
139
|
|
|
*/ |
|
140
|
13 |
|
protected function load() |
|
141
|
|
|
{ |
|
142
|
|
|
if (!isset($this->proc)) |
|
143
|
|
|
{ |
|
144
|
|
|
$xsl = $this->loadXML($this->stylesheet); |
|
145
|
|
|
|
|
146
|
|
|
$this->proc = new XSLTProcessor; |
|
147
|
|
|
$this->proc->importStylesheet($xsl); |
|
148
|
16 |
|
} |
|
149
|
|
|
} |
|
150
|
16 |
|
|
|
151
|
|
|
/** |
|
152
|
16 |
|
* Normalize given attribute's value to use double quotes |
|
153
|
|
|
* |
|
154
|
16 |
|
* @param string[] $m |
|
155
|
16 |
|
* @return string |
|
156
|
|
|
*/ |
|
157
|
|
|
protected function normalizeAttribute(array $m) |
|
158
|
|
|
{ |
|
159
|
|
|
if ($m[0][0] === '"') |
|
160
|
|
|
{ |
|
161
|
|
|
return $m[0]; |
|
162
|
|
|
} |
|
163
|
|
|
|
|
164
|
|
|
return '"' . str_replace('"', '"', substr($m[0], 1, -1)) . '"'; |
|
165
|
2 |
|
} |
|
166
|
|
|
|
|
167
|
2 |
|
/** |
|
168
|
|
|
* Normalize all attributes in given HTML to use double quotes |
|
169
|
2 |
|
* |
|
170
|
|
|
* @param string $html |
|
171
|
|
|
* @return string |
|
172
|
1 |
|
*/ |
|
173
|
|
|
protected function normalizeAttributes($html) |
|
174
|
|
|
{ |
|
175
|
|
|
return preg_replace_callback('(<\\S++ [^>]++>)', $this->normalizeElement(...), $html); |
|
176
|
|
|
} |
|
177
|
|
|
|
|
178
|
|
|
/** |
|
179
|
|
|
* Normalize attributes in given element to use double quotes |
|
180
|
|
|
* |
|
181
|
2 |
|
* @param string[] $m |
|
182
|
|
|
* @return string |
|
183
|
2 |
|
*/ |
|
184
|
|
|
protected function normalizeElement(array $m) |
|
185
|
|
|
{ |
|
186
|
|
|
if (strpos($m[0], "='") === false) |
|
187
|
|
|
{ |
|
188
|
|
|
return $m[0]; |
|
189
|
|
|
} |
|
190
|
|
|
|
|
191
|
|
|
return preg_replace_callback('((?:"[^"]*"|\'[^\']*\'))S', $this->normalizeAttribute(...), $m[0]); |
|
192
|
|
|
} |
|
193
|
|
|
} |
s9e /
TextFormatter
