1
|
|
|
<?php |
2
|
|
|
namespace Thunder\Shortcode\Parser; |
3
|
|
|
|
4
|
|
|
use Thunder\Shortcode\HandlerContainer\HandlerContainer; |
5
|
|
|
use Thunder\Shortcode\Shortcode\ParsedShortcode; |
6
|
|
|
use Thunder\Shortcode\Shortcode\Shortcode; |
7
|
|
|
|
8
|
|
|
/** |
9
|
|
|
* IMPORTANT NOTE: USE THIS PARSER **ONLY** IF YOU WANT THE FULL COMPATIBILITY |
10
|
|
|
* WITH WORDPRESS AND REPORT BUGS **ONLY** IF ITS BEHAVIOR IS DIFFERENT. |
11
|
|
|
* |
12
|
|
|
* This is a direct port of WordPress' shortcode parser with code copied from |
13
|
|
|
* its latest release (4.3.1 at the moment) adjusted to conform to this library. |
14
|
|
|
* Main regex was copied from get_shortcode_regex(), changed to handle all |
15
|
|
|
* shortcode names and folded into single string ($shortcodeRegex property), |
16
|
|
|
* method parseParameters() is a copy of function shortcode_parse_atts(). Code |
17
|
|
|
* was only structurally refactored for better readability. Read the comment |
18
|
|
|
* at the bottom of ParserTest::provideShortcodes() to understand the |
19
|
|
|
* limitations of this parser. |
20
|
|
|
* |
21
|
|
|
* @see https://core.trac.wordpress.org/browser/tags/4.3.1/src/wp-includes/shortcodes.php#L239 |
22
|
|
|
* @see https://core.trac.wordpress.org/browser/tags/4.3.1/src/wp-includes/shortcodes.php#L448 |
23
|
|
|
* |
24
|
|
|
* @author Tomasz Kowalczyk <[email protected]> |
25
|
|
|
*/ |
26
|
|
|
final class WordpressParser implements ParserInterface |
27
|
|
|
{ |
28
|
|
|
private static $shortcodeRegex = '/\\[(\\[?)(<NAMES>)(?![\\w-])([^\\]\\/]*(?:\\/(?!\\])[^\\]\\/]*)*?)(?:(\\/)\\]|\\](?:([^\\[]*+(?:\\[(?!\\/\\2\\])[^\\[]*+)*+)\\[\\/\\2\\])?)(\\]?)/s'; |
29
|
|
|
private static $argumentsRegex = '/([\w-]+)\s*=\s*"([^"]*)"(?:\s|$)|([\w-]+)\s*=\s*\'([^\']*)\'(?:\s|$)|([\w-]+)\s*=\s*([^\s\'"]+)(?:\s|$)|"([^"]*)"(?:\s|$)|(\S+)(?:\s|$)/'; |
30
|
|
|
|
31
|
|
|
private $names; |
32
|
|
|
|
33
|
1 |
|
public static function createFromHandlers(HandlerContainer $handlers) |
34
|
|
|
{ |
35
|
1 |
|
return static::createFromNames($handlers->getNames()); |
36
|
|
|
} |
37
|
|
|
|
38
|
2 |
|
public static function createFromNames(array $names) |
39
|
|
|
{ |
40
|
2 |
|
foreach($names as $name) { |
41
|
2 |
|
if(false === is_string($name)) { |
42
|
1 |
|
throw new \InvalidArgumentException('Shortcode name must be a string!'); |
43
|
|
|
} |
44
|
2 |
|
} |
45
|
|
|
|
46
|
1 |
|
$self = new self(); |
47
|
1 |
|
$self->names = $names; |
48
|
|
|
|
49
|
1 |
|
return $self; |
50
|
|
|
} |
51
|
|
|
|
52
|
|
|
/** |
53
|
|
|
* @param string $text |
54
|
|
|
* |
55
|
|
|
* @return ParsedShortcode[] |
56
|
|
|
*/ |
57
|
32 |
|
public function parse($text) |
58
|
|
|
{ |
59
|
32 |
|
$names = $this->names |
60
|
32 |
|
? implode('|', array_map('preg_quote', $this->names)) |
61
|
32 |
|
: '[a-zA-Z-]+'; |
62
|
32 |
|
$regex = str_replace('<NAMES>', $names, static::$shortcodeRegex); |
|
|
|
|
63
|
32 |
|
preg_match_all($regex, $text, $matches, PREG_OFFSET_CAPTURE); |
64
|
|
|
|
65
|
32 |
|
$shortcodes = array(); |
66
|
32 |
|
$count = count($matches[0]); |
67
|
32 |
|
for($i = 0; $i < $count; $i++) { |
68
|
25 |
|
$name = $matches[2][$i][0]; |
69
|
25 |
|
$parameters = static::parseParameters($matches[3][$i][0]); |
|
|
|
|
70
|
25 |
|
$content = $matches[5][$i][0] ?: null; |
71
|
25 |
|
$match = $matches[0][$i][0]; |
72
|
25 |
|
$offset = mb_strlen(substr($text, 0, $matches[0][$i][1]), 'utf-8'); |
73
|
|
|
|
74
|
25 |
|
$shortcode = new Shortcode($name, $parameters, $content, null); |
75
|
25 |
|
$shortcodes[] = new ParsedShortcode($shortcode, $match, $offset); |
76
|
25 |
|
} |
77
|
|
|
|
78
|
32 |
|
return $shortcodes; |
79
|
|
|
} |
80
|
|
|
|
81
|
25 |
|
private static function parseParameters($text) |
82
|
|
|
{ |
83
|
25 |
|
$text = preg_replace('/[\x{00a0}\x{200b}]+/u', ' ', $text); |
84
|
|
|
|
85
|
25 |
|
if(!preg_match_all(static::$argumentsRegex, $text, $matches, PREG_SET_ORDER)) { |
|
|
|
|
86
|
13 |
|
return ltrim($text) ? array(ltrim($text) => null) : array(); |
87
|
|
|
} |
88
|
|
|
|
89
|
14 |
|
$parameters = array(); |
90
|
14 |
|
foreach($matches as $match) { |
91
|
14 |
|
if(!empty($match[1])) { |
92
|
11 |
|
$parameters[strtolower($match[1])] = stripcslashes($match[2]); |
93
|
14 |
|
} elseif(!empty($match[3])) { |
94
|
1 |
|
$parameters[strtolower($match[3])] = stripcslashes($match[4]); |
95
|
9 |
|
} elseif(!empty($match[5])) { |
96
|
5 |
|
$parameters[strtolower($match[5])] = stripcslashes($match[6]); |
97
|
9 |
|
} elseif(isset($match[7]) && strlen($match[7])) { |
98
|
1 |
|
$parameters[stripcslashes($match[7])] = null; |
99
|
5 |
|
} elseif(isset($match[8])) { |
100
|
4 |
|
$parameters[stripcslashes($match[8])] = null; |
101
|
4 |
|
} |
102
|
14 |
|
} |
103
|
|
|
|
104
|
14 |
|
foreach($parameters as $key => $value) { |
105
|
14 |
|
if(false !== strpos($value, '<') && 1 !== preg_match('/^[^<]*+(?:<[^>]*+>[^<]*+)*+$/', $value)) { |
106
|
1 |
|
$parameters[$key] = ''; |
107
|
1 |
|
} |
108
|
14 |
|
} |
109
|
|
|
|
110
|
14 |
|
return $parameters; |
111
|
|
|
} |
112
|
|
|
} |
113
|
|
|
|
Late static binding only has effect in subclasses. A
final
class cannot be extended anymore so late static binding cannot occurr. Consider replacingstatic::
withself::
.To learn more about late static binding, please refer to the PHP core documentation.