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 DOMNode; |
11
|
|
|
use DOMXPath; |
12
|
|
|
use RuntimeException; |
13
|
|
|
use s9e\TextFormatter\Renderer; |
14
|
|
|
use s9e\TextFormatter\Utils\XPath; |
15
|
|
|
|
16
|
|
|
abstract class PHP extends Renderer |
17
|
|
|
{ |
18
|
|
|
/** |
19
|
|
|
* @var array[] Stack of dictionaries used by the Quick renderer [[attrName => attrValue]] |
20
|
|
|
*/ |
21
|
|
|
protected $attributes; |
22
|
|
|
|
23
|
|
|
/** |
24
|
|
|
* @var array Dictionary of replacements used by the Quick renderer [id => [match, replace]] |
25
|
|
|
*/ |
26
|
|
|
protected $dynamic; |
27
|
|
|
|
28
|
|
|
/** |
29
|
|
|
* @var bool Whether to enable the Quick renderer |
30
|
|
|
*/ |
31
|
|
|
public $enableQuickRenderer = false; |
32
|
|
|
|
33
|
|
|
/** |
34
|
|
|
* @var string Renderer's output |
35
|
|
|
*/ |
36
|
|
|
protected $out; |
37
|
|
|
|
38
|
|
|
/** |
39
|
|
|
* @var string Regexp that matches XML elements to be rendered by the quick renderer |
40
|
|
|
*/ |
41
|
|
|
protected $quickRegexp = '((?!))'; |
42
|
|
|
|
43
|
|
|
/** |
44
|
|
|
* @var string Regexp that matches nodes that SHOULD NOT be rendered by the quick renderer |
45
|
|
|
*/ |
46
|
|
|
protected $quickRenderingTest = '((?<=<)[!?])'; |
47
|
|
|
|
48
|
|
|
/** |
49
|
|
|
* @var array Dictionary of static replacements used by the Quick renderer [id => replacement] |
50
|
|
|
*/ |
51
|
|
|
protected $static; |
52
|
|
|
|
53
|
|
|
/** |
54
|
|
|
* @var DOMXPath XPath object used to query the document being rendered |
55
|
|
|
*/ |
56
|
|
|
protected $xpath; |
57
|
|
|
|
58
|
|
|
/** |
59
|
|
|
* Render given DOMNode |
60
|
|
|
* |
61
|
|
|
* @param DOMNode $node |
62
|
|
|
* @return void |
63
|
|
|
*/ |
64
|
|
|
abstract protected function renderNode(DOMNode $node); |
65
|
|
|
|
66
|
5 |
|
public function __serialize(): array |
67
|
|
|
{ |
68
|
5 |
|
return [ |
69
|
|
|
'enableQuickRenderer' => $this->enableQuickRenderer, |
70
|
|
|
'params' => $this->params |
71
|
|
|
]; |
72
|
|
|
} |
73
|
|
|
|
74
|
|
|
/** |
75
|
|
|
* Render the content of given node |
76
|
|
|
* |
77
|
|
|
* Matches the behaviour of an xsl:apply-templates element |
78
|
|
|
* |
79
|
|
|
* @param DOMNode $root Context node |
80
|
382 |
|
* @param string $query XPath query used to filter which child nodes to render |
81
|
|
|
* @return void |
82
|
382 |
|
*/ |
83
|
|
|
protected function at(DOMNode $root, $query = null) |
84
|
|
|
{ |
85
|
198 |
|
if ($root->nodeType === XML_TEXT_NODE) |
86
|
|
|
{ |
87
|
|
|
// Text nodes are outputted directly |
88
|
|
|
$this->out .= htmlspecialchars($root->textContent, ENT_NOQUOTES); |
89
|
382 |
|
} |
90
|
382 |
|
else |
91
|
|
|
{ |
92
|
382 |
|
$nodes = (isset($query)) ? $this->xpath->query($query, $root) : $root->childNodes; |
93
|
|
|
foreach ($nodes as $node) |
94
|
|
|
{ |
95
|
|
|
$this->renderNode($node); |
96
|
|
|
} |
97
|
|
|
} |
98
|
|
|
} |
99
|
|
|
|
100
|
|
|
/** |
101
|
|
|
* Test whether given XML can be rendered with the Quick renderer |
102
|
|
|
* |
103
|
815 |
|
* @param string $xml |
104
|
|
|
* @return bool |
105
|
815 |
|
*/ |
106
|
|
|
protected function canQuickRender($xml) |
107
|
|
|
{ |
108
|
|
|
return ($this->enableQuickRenderer && !preg_match($this->quickRenderingTest, $xml) && substr($xml, -4) === '</r>'); |
109
|
|
|
} |
110
|
|
|
|
111
|
|
|
/** |
112
|
|
|
* Ensure that a tag pair does not contain a start tag of itself |
113
|
|
|
* |
114
|
|
|
* Detects malformed matches such as <X><X></X> |
115
|
|
|
* |
116
|
|
|
* @param string $id |
117
|
184 |
|
* @param string $xml |
118
|
|
|
* @return void |
119
|
184 |
|
*/ |
120
|
|
|
protected function checkTagPairContent($id, $xml) |
121
|
1 |
|
{ |
122
|
|
|
if (strpos($xml, '<' . $id, 1) !== false) |
123
|
|
|
{ |
124
|
|
|
throw new RuntimeException; |
125
|
|
|
} |
126
|
|
|
} |
127
|
|
|
|
128
|
|
|
/** |
129
|
|
|
* Return a parameter's value as an XPath expression |
130
|
|
|
* |
131
|
4 |
|
* @param string $paramName |
132
|
|
|
* @return string |
133
|
4 |
|
*/ |
134
|
|
|
protected function getParamAsXPath($paramName) |
135
|
|
|
{ |
136
|
|
|
return (isset($this->params[$paramName])) ? XPath::export($this->params[$paramName]) : "''"; |
137
|
|
|
} |
138
|
|
|
|
139
|
|
|
/** |
140
|
|
|
* Extract the text content from given XML |
141
|
|
|
* |
142
|
|
|
* NOTE: numeric character entities are decoded beforehand, we don't need to decode them here |
143
|
|
|
* |
144
|
10 |
|
* @param string $xml Original XML |
145
|
|
|
* @return string Text content, with special characters decoded |
146
|
10 |
|
*/ |
147
|
|
|
protected function getQuickTextContent($xml) |
148
|
|
|
{ |
149
|
|
|
return htmlspecialchars_decode(strip_tags($xml)); |
150
|
|
|
} |
151
|
|
|
|
152
|
|
|
/** |
153
|
|
|
* Test whether given array has any non-null values |
154
|
|
|
* |
155
|
4 |
|
* @param array $array |
156
|
|
|
* @return bool |
157
|
4 |
|
*/ |
158
|
|
|
protected function hasNonNullValues(array $array) |
159
|
3 |
|
{ |
160
|
|
|
foreach ($array as $v) |
161
|
2 |
|
{ |
162
|
|
|
if (isset($v)) |
163
|
|
|
{ |
164
|
|
|
return true; |
165
|
2 |
|
} |
166
|
|
|
} |
167
|
|
|
|
168
|
|
|
return false; |
169
|
|
|
} |
170
|
|
|
|
171
|
|
|
/** |
172
|
|
|
* Capture and return the attributes of an XML element |
173
|
|
|
* |
174
|
|
|
* NOTE: XML character entities are left as-is |
175
|
|
|
* |
176
|
266 |
|
* @param string $xml Element in XML form |
177
|
|
|
* @return array Dictionary of [attrName => attrValue] |
178
|
266 |
|
*/ |
179
|
|
|
protected function matchAttributes($xml) |
180
|
126 |
|
{ |
181
|
|
|
if (strpos($xml, '="') === false) |
182
|
|
|
{ |
183
|
|
|
return []; |
184
|
183 |
|
} |
185
|
|
|
|
186
|
183 |
|
// Match all name-value pairs until the first right bracket |
187
|
|
|
preg_match_all('(([^ =]++)="([^"]*))S', substr($xml, 0, strpos($xml, '>')), $m); |
188
|
|
|
|
189
|
|
|
return array_combine($m[1], $m[2]); |
190
|
|
|
} |
191
|
|
|
|
192
|
|
|
/** |
193
|
|
|
* Render an intermediate representation using the Quick renderer |
194
|
|
|
* |
195
|
423 |
|
* @param string $xml Intermediate representation |
196
|
|
|
* @return string |
197
|
423 |
|
*/ |
198
|
423 |
|
protected function renderQuick($xml) |
199
|
423 |
|
{ |
200
|
423 |
|
$this->attributes = []; |
201
|
423 |
|
$xml = $this->decodeSMP($xml); |
202
|
423 |
|
$html = preg_replace_callback( |
203
|
|
|
$this->quickRegexp, |
204
|
|
|
$this->renderQuickCallback(...), |
205
|
422 |
|
substr($xml, 1 + strpos($xml, '>'), -4) |
206
|
|
|
); |
207
|
|
|
|
208
|
|
|
return str_replace('<br/>', '<br>', $html); |
209
|
|
|
} |
210
|
|
|
|
211
|
|
|
/** |
212
|
|
|
* Render a string matched by the Quick renderer |
213
|
|
|
* |
214
|
|
|
* This stub should be overwritten by generated renderers |
215
|
|
|
* |
216
|
413 |
|
* @param string[] $m |
217
|
|
|
* @return string |
218
|
413 |
|
*/ |
219
|
|
|
protected function renderQuickCallback(array $m) |
220
|
77 |
|
{ |
221
|
|
|
if (isset($m[3])) |
222
|
|
|
{ |
223
|
413 |
|
return $this->renderQuickSelfClosingTag($m); |
224
|
|
|
} |
225
|
|
|
|
226
|
232 |
|
if (isset($m[2])) |
227
|
|
|
{ |
228
|
|
|
// Single tag |
229
|
|
|
$id = $m[2]; |
230
|
|
|
} |
231
|
184 |
|
else |
232
|
184 |
|
{ |
233
|
|
|
// Tag pair |
234
|
|
|
$id = $m[1]; |
235
|
412 |
|
$this->checkTagPairContent($id, $m[0]); |
236
|
|
|
} |
237
|
179 |
|
|
238
|
|
|
if (isset($this->static[$id])) |
239
|
352 |
|
{ |
240
|
|
|
return $this->static[$id]; |
241
|
97 |
|
} |
242
|
|
|
if (isset($this->dynamic[$id])) |
243
|
|
|
{ |
244
|
266 |
|
return preg_replace($this->dynamic[$id][0], $this->dynamic[$id][1], $m[0], 1); |
245
|
|
|
} |
246
|
|
|
|
247
|
|
|
return $this->renderQuickTemplate($id, $m[0]); |
248
|
|
|
} |
249
|
|
|
|
250
|
|
|
/** |
251
|
|
|
* Render a self-closing tag using the Quick renderer |
252
|
|
|
* |
253
|
77 |
|
* @param string[] $m |
254
|
|
|
* @return string |
255
|
77 |
|
*/ |
256
|
|
|
protected function renderQuickSelfClosingTag(array $m) |
257
|
77 |
|
{ |
258
|
77 |
|
unset($m[3]); |
259
|
|
|
|
260
|
77 |
|
$m[0] = substr($m[0], 0, -2) . '>'; |
261
|
77 |
|
$html = $this->renderQuickCallback($m); |
262
|
77 |
|
|
263
|
|
|
$m[0] = '</' . $m[2] . '>'; |
264
|
77 |
|
$m[2] = '/' . $m[2]; |
265
|
|
|
$html .= $this->renderQuickCallback($m); |
266
|
|
|
|
267
|
|
|
return $html; |
268
|
|
|
} |
269
|
|
|
|
270
|
|
|
/** |
271
|
|
|
* Render a string matched by the Quick renderer using a generated PHP template |
272
|
|
|
* |
273
|
|
|
* This stub should be overwritten by generated renderers |
274
|
|
|
* |
275
|
|
|
* @param integer $id Tag's ID (tag name optionally preceded by a slash) |
276
|
1 |
|
* @param string $xml Tag's XML or tag pair's XML including their content |
277
|
|
|
* @return string Rendered template |
278
|
1 |
|
*/ |
279
|
|
|
protected function renderQuickTemplate($id, $xml) |
280
|
|
|
{ |
281
|
|
|
throw new RuntimeException('Not implemented'); |
282
|
|
|
} |
283
|
|
|
|
284
|
815 |
|
/** |
285
|
|
|
* {@inheritdoc} |
286
|
815 |
|
*/ |
287
|
|
|
protected function renderRichText($xml) |
288
|
|
|
{ |
289
|
|
|
$this->setLocale(); |
290
|
815 |
|
|
291
|
|
|
try |
292
|
423 |
|
{ |
293
|
422 |
|
if ($this->canQuickRender($xml)) |
294
|
|
|
{ |
295
|
814 |
|
$html = $this->renderQuick($xml); |
296
|
|
|
$this->restoreLocale(); |
297
|
|
|
|
298
|
1 |
|
return $html; |
299
|
|
|
} |
300
|
|
|
} |
301
|
|
|
catch (RuntimeException $e) |
302
|
|
|
{ |
303
|
393 |
|
// Do nothing |
304
|
382 |
|
} |
305
|
382 |
|
|
306
|
382 |
|
$dom = $this->loadXML($xml); |
307
|
382 |
|
$this->out = ''; |
308
|
382 |
|
$this->xpath = new DOMXPath($dom); |
309
|
382 |
|
$this->at($dom->documentElement); |
310
|
|
|
$html = $this->out; |
311
|
382 |
|
$this->reset(); |
312
|
|
|
$this->restoreLocale(); |
313
|
|
|
|
314
|
|
|
return $html; |
315
|
|
|
} |
316
|
|
|
|
317
|
|
|
/** |
318
|
|
|
* Reset object properties that are populated during rendering |
319
|
382 |
|
* |
320
|
|
|
* @return void |
321
|
382 |
|
*/ |
322
|
382 |
|
protected function reset() |
323
|
382 |
|
{ |
324
|
|
|
unset($this->attributes); |
325
|
|
|
unset($this->out); |
326
|
|
|
unset($this->xpath); |
327
|
|
|
} |
328
|
|
|
} |