|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Vanderlee\Comprehend\Builder; |
|
4
|
|
|
|
|
5
|
|
|
use Exception; |
|
6
|
|
|
use InvalidArgumentException; |
|
7
|
|
|
use Vanderlee\Comprehend\Core\Context; |
|
8
|
|
|
use Vanderlee\Comprehend\Match\Failure; |
|
9
|
|
|
use Vanderlee\Comprehend\Match\Success; |
|
10
|
|
|
use Vanderlee\Comprehend\Parser\Parser; |
|
11
|
|
|
|
|
12
|
|
|
/** |
|
13
|
|
|
* Description of Factory |
|
14
|
|
|
* |
|
15
|
|
|
* @author Martijn |
|
16
|
|
|
*/ |
|
17
|
|
|
class Implementation extends Parser |
|
18
|
|
|
{ |
|
19
|
|
|
|
|
20
|
|
|
/** |
|
21
|
|
|
* @var Parser|callable|null |
|
22
|
|
|
*/ |
|
23
|
|
|
private $parser = null; |
|
24
|
|
|
|
|
25
|
|
|
/** |
|
26
|
|
|
* @var callable|null |
|
27
|
|
|
*/ |
|
28
|
|
|
public $validator = null; |
|
29
|
|
|
|
|
30
|
|
|
/** |
|
31
|
|
|
* @var callable|null |
|
32
|
|
|
*/ |
|
33
|
|
|
public $processor = null; |
|
34
|
|
|
public $processorKey = null; |
|
35
|
|
|
|
|
36
|
|
|
/** |
|
37
|
|
|
* @var Definition |
|
38
|
|
|
*/ |
|
39
|
|
|
private $definition = null; |
|
40
|
|
|
private $arguments = null; |
|
41
|
|
|
|
|
42
|
|
|
/** |
|
43
|
|
|
* @param Definition $definition |
|
44
|
|
|
* @param array $arguments |
|
45
|
|
|
*/ |
|
46
|
38 |
|
public function __construct(Definition &$definition, array $arguments = []) |
|
47
|
|
|
{ |
|
48
|
38 |
|
$this->definition = $definition; |
|
49
|
38 |
|
$this->arguments = $arguments; |
|
50
|
38 |
|
} |
|
51
|
|
|
|
|
52
|
|
|
/** |
|
53
|
|
|
* @param $name |
|
54
|
|
|
* @return callable|null|Parser |
|
55
|
|
|
*/ |
|
56
|
5 |
|
public function __get($name) |
|
57
|
|
|
{ |
|
58
|
5 |
|
if ($name === 'parser') { |
|
59
|
|
|
try { |
|
60
|
4 |
|
$this->build(); |
|
61
|
2 |
|
} catch (Exception $exception) { |
|
62
|
2 |
|
$this->parser = null; |
|
63
|
|
|
} |
|
64
|
|
|
|
|
65
|
4 |
|
return $this->parser; |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
1 |
|
throw new InvalidArgumentException("Property `{$name}` does not exist"); |
|
69
|
|
|
} |
|
70
|
|
|
|
|
71
|
|
|
/** |
|
72
|
|
|
* @throws \Exception |
|
73
|
|
|
*/ |
|
74
|
167 |
|
private function build() |
|
75
|
|
|
{ |
|
76
|
167 |
|
if ($this->parser === null) { |
|
77
|
163 |
|
$this->parser = $this->definition->generator; |
|
78
|
163 |
|
if (!$this->parser instanceof Parser) { |
|
79
|
18 |
|
if (!is_callable($this->parser)) { |
|
80
|
5 |
|
throw new Exception('Parser not defined'); |
|
81
|
|
|
} |
|
82
|
|
|
|
|
83
|
13 |
|
$parser = ($this->parser); |
|
84
|
13 |
|
$this->parser = $parser(...$this->arguments); |
|
85
|
|
|
} |
|
86
|
|
|
} |
|
87
|
162 |
|
} |
|
88
|
|
|
|
|
89
|
|
|
/** |
|
90
|
|
|
* @param string $input |
|
91
|
|
|
* @param int $offset |
|
92
|
|
|
* @param Context $context |
|
93
|
|
|
* @return Failure|Success |
|
94
|
|
|
* @throws Exception |
|
95
|
|
|
*/ |
|
96
|
162 |
|
protected function parse(&$input, $offset, Context $context) |
|
97
|
|
|
{ |
|
98
|
162 |
|
$this->build(); |
|
99
|
|
|
|
|
100
|
160 |
|
$match = $this->parser->parse($input, $offset, $context); |
|
101
|
|
|
|
|
102
|
160 |
|
$localResults = []; // this is redundant, but suppresses PHP scanner warnings |
|
103
|
160 |
|
if ($match instanceof Success) { |
|
104
|
125 |
|
$localResults = $match->results; |
|
105
|
125 |
|
foreach ($this->definition->validators as $validator) { |
|
106
|
4 |
|
if (!($validator(substr($input, $offset, $match->length), $localResults))) { |
|
107
|
4 |
|
return $this->failure($input, $offset, $match->length); |
|
108
|
|
|
} |
|
109
|
|
|
} |
|
110
|
|
|
} |
|
111
|
|
|
|
|
112
|
|
|
// Copy match into new match, only pass original callbacks if processor not set |
|
113
|
160 |
|
$successes = empty($this->definition->processors) |
|
114
|
159 |
|
? $match |
|
115
|
160 |
|
: []; |
|
116
|
160 |
|
$match = ($match instanceof Success) |
|
117
|
125 |
|
? $this->success($input, $offset, $match->length, $successes) |
|
118
|
160 |
|
: $this->failure($input, $offset, $match->length); |
|
119
|
|
|
|
|
120
|
160 |
|
if ($match instanceof Success |
|
121
|
160 |
|
&& !empty($this->definition->processors)) { |
|
122
|
|
|
|
|
123
|
1 |
|
foreach ($this->definition->processors as $key => $processor) { |
|
124
|
1 |
|
$match->addResultCallback(function (&$results) use ($key, $processor, $localResults) { |
|
125
|
1 |
|
$results[$key] = $processor($localResults, $results); |
|
126
|
1 |
|
}); |
|
127
|
|
|
} |
|
128
|
|
|
} |
|
129
|
|
|
|
|
130
|
160 |
|
return $match; |
|
131
|
|
|
} |
|
132
|
|
|
|
|
133
|
|
|
/** |
|
134
|
|
|
* @return string |
|
135
|
|
|
*/ |
|
136
|
132 |
|
public function __toString() |
|
137
|
|
|
{ |
|
138
|
|
|
try { |
|
139
|
132 |
|
$this->build(); |
|
140
|
1 |
|
} catch (Exception $e) { |
|
141
|
|
|
// ignore |
|
142
|
|
|
} |
|
143
|
|
|
|
|
144
|
132 |
|
return (string)$this->parser; |
|
145
|
|
|
} |
|
146
|
|
|
|
|
147
|
|
|
} |
|
148
|
|
|
|
vanderlee /
Comprehend
