1: <?php
 2: /**
 3:  * Sastrawi (https://github.com/sastrawi/sastrawi)
 4:  *
 5:  * @link      http://github.com/sastrawi/sastrawi for the canonical source repository
 6:  * @license   https://github.com/sastrawi/sastrawi/blob/master/LICENSE The MIT License (MIT)
 7:  */
 8: 
 9: namespace Sastrawi\Morphology\Disambiguator;
10: 
11: /**
12: * Disambiguate Prefix Rule 3
13: * Rule 3 : berCAerV -> ber-CAerV where C != 'r'
14: *
15: */
16: class DisambiguatorPrefixRule3 implements DisambiguatorInterface
17: {
18:     /**
19:      * Disambiguate Prefix Rule 3
20:      * Rule 3 : berCAerV -> ber-CAerV where C != 'r'
21:      * return string|null
22:      */
23:     public function disambiguate($word)
24:     {
25:         $matches  = null;
26:         $contains = preg_match('/^ber([bcdfghjklmnpqrstvwxyz])([a-z])er([aiueo])(.*)$/', $word, $matches);
27: 
28:         if ($contains === 1) {
29:             if ($matches[1] === 'r') {
30:                 return;
31:             }
32: 
33:             return $matches[1] . $matches[2] . 'er' . $matches[3] . $matches[4];
34:         }
35:     }
36: }
37: