1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* File containing the {@see Mailcode_Parser_Statement_Info_Pruner} class. |
4
|
|
|
* |
5
|
|
|
* @package Mailcode |
6
|
|
|
* @subpackage Parser |
7
|
|
|
* @see Mailcode_Parser_Statement_Info_Pruner |
8
|
|
|
*/ |
9
|
|
|
|
10
|
|
|
declare(strict_types=1); |
11
|
|
|
|
12
|
|
|
namespace Mailcode; |
13
|
|
|
|
14
|
|
|
/** |
15
|
|
|
* Statement pruning utility: allows applying rules to |
16
|
|
|
* an existing statement's tokens to retrieve only the |
17
|
|
|
* relevant tokens. |
18
|
|
|
* |
19
|
|
|
* @package Mailcode |
20
|
|
|
* @subpackage Parser |
21
|
|
|
* @author Sebastian Mordziol <[email protected]> |
22
|
|
|
*/ |
23
|
|
|
class Mailcode_Parser_Statement_Info_Pruner |
24
|
|
|
{ |
25
|
|
|
/** |
26
|
|
|
* @var Mailcode_Parser_Statement_Info |
27
|
|
|
*/ |
28
|
|
|
private $info; |
29
|
|
|
|
30
|
|
|
/** |
31
|
|
|
* @var string[] |
32
|
|
|
*/ |
33
|
|
|
private $exclude = array(); |
34
|
|
|
|
35
|
|
|
/** |
36
|
|
|
* @var string[] |
37
|
|
|
*/ |
38
|
|
|
private $classNames = array(); |
39
|
|
|
|
40
|
|
|
public function __construct(Mailcode_Parser_Statement_Info $info) |
41
|
|
|
{ |
42
|
|
|
$this->info = $info; |
43
|
|
|
} |
44
|
|
|
|
45
|
|
|
public function excludeToken(Mailcode_Parser_Statement_Tokenizer_Token $token) : Mailcode_Parser_Statement_Info_Pruner |
46
|
|
|
{ |
47
|
|
|
$id = $token->getID(); |
48
|
|
|
|
49
|
|
|
if(!in_array($id, $this->exclude)) |
50
|
|
|
{ |
51
|
|
|
$this->exclude[] = $id; |
52
|
|
|
} |
53
|
|
|
|
54
|
|
|
return $this; |
55
|
|
|
} |
56
|
|
|
|
57
|
|
|
public function limitToStringLiterals() : Mailcode_Parser_Statement_Info_Pruner |
58
|
|
|
{ |
59
|
|
|
return $this->limitByClassName(Mailcode_Parser_Statement_Tokenizer_Token_StringLiteral::class); |
60
|
|
|
} |
61
|
|
|
|
62
|
|
|
public function limitToNumbers() : Mailcode_Parser_Statement_Info_Pruner |
63
|
|
|
{ |
64
|
|
|
return $this->limitByClassName(Mailcode_Parser_Statement_Tokenizer_Token_Number::class); |
65
|
|
|
} |
66
|
|
|
|
67
|
|
|
public function limitByClassName(string $className) : Mailcode_Parser_Statement_Info_Pruner |
68
|
|
|
{ |
69
|
|
|
if(!in_array($className, $this->classNames)) |
70
|
|
|
{ |
71
|
|
|
$this->classNames[] = $className; |
72
|
|
|
} |
73
|
|
|
|
74
|
|
|
return $this; |
75
|
|
|
} |
76
|
|
|
|
77
|
|
|
/** |
78
|
|
|
* Retrieves all tokens in the statement matching the |
79
|
|
|
* current criteria. |
80
|
|
|
* |
81
|
|
|
* @return Mailcode_Parser_Statement_Tokenizer_Token[] |
82
|
|
|
*/ |
83
|
|
|
public function getTokens() : array |
84
|
|
|
{ |
85
|
|
|
$tokens = $this->info->getTokens(); |
86
|
|
|
$keep = array(); |
87
|
|
|
|
88
|
|
|
foreach($tokens as $token) |
89
|
|
|
{ |
90
|
|
|
if(in_array($token->getID(), $this->exclude)) |
91
|
|
|
{ |
92
|
|
|
continue; |
93
|
|
|
} |
94
|
|
|
|
95
|
|
|
$keep[] = $token; |
96
|
|
|
} |
97
|
|
|
|
98
|
|
|
return $keep; |
99
|
|
|
} |
100
|
|
|
} |
101
|
|
|
|