1: <?php
 2: 
 3: namespace Deimos\Flow;
 4: 
 5: abstract class FlowFunction
 6: {
 7: 
 8:     const REGEXP_CALLBACK = '[\w"\[\]\(\)\$-\>]+';
 9:     const REGEXP_VARIABLE = '\$[\w"\'\[\]\(\)\$-\>]+';
10: 
11:     /**
12:      * @var array
13:      */
14:     public $data;
15: 
16:     /**
17:      * @var Flow
18:      */
19:     public $flow;
20: 
21:     /**
22:      * @var Configure
23:      */
24:     public $configure;
25: 
26:     /**
27:      * FlowFunction constructor.
28:      *
29:      * @param Flow      $flow
30:      * @param Configure $configure
31:      * @param array     $data
32:      */
33:     public function __construct(Flow $flow, Configure $configure, array $data)
34:     {
35:         $this->flow      = $flow;
36:         $this->configure = $configure;
37:         $this->data      = $data;
38:     }
39: 
40:     /**
41:      * @param $variable
42:      *
43:      * @return string
44:      */
45:     protected function variable($variable)
46:     {
47:         $variable = preg_replace('~(\$)(.*)\.([\w-_]+)~', '$1$2[\'$3\']', $variable);
48: 
49:         return trim($variable, '"\' ');
50:     }
51: 
52:     /**
53:      * @return int
54:      */
55:     public function random()
56:     {
57:         return $this->flow->random();
58:     }
59: 
60:     abstract public function view();
61: 
62: }