1: <?php
 2: 
 3: /**
 4:  * @copyright Copyright (c) 2009-2022 ThemeCatcher (https://www.themecatcher.net)
 5:  */
 6: class Quform_Validator_Regex extends Quform_Validator_Abstract
 7: {
 8:     const INVALID = 'regexInvalid';
 9:     const NOT_MATCH = 'regexNotMatch';
10: 
11:     /**
12:      * Returns true if the given value matches the regular expression pattern
13:      * Return false otherwise.
14:      *
15:      * @param   string   $value
16:      * @return  boolean
17:      */
18:     public function isValid($value)
19:     {
20:         $this->reset();
21: 
22:         if ( ! is_string($value)) {
23:             $this->error(self::INVALID);
24:             return false;
25:         }
26: 
27:         $pattern = $this->config('pattern');
28: 
29:         if (Quform::isNonEmptyString($pattern)) {
30:             $result = preg_match($pattern, $value);
31:             $invert = $this->config('invert');
32: 
33:             if ($invert && $result || ! $invert && ! $result) {
34:                 $this->error(self::NOT_MATCH, compact('pattern', 'value'));
35:                 return false;
36:             }
37:         }
38: 
39:         return true;
40:     }
41: 
42:     /**
43:      * Get all message templates or the single message with the given key
44:      *
45:      * @param   string|null   $key
46:      * @return  array|string
47:      */
48:     public static function getMessageTemplates($key = null)
49:     {
50:         $messageTemplates = array(
51:             self::INVALID => __('Invalid data type, string expected',  'quform'),
52:             self::NOT_MATCH => __('Invalid value given',  'quform')
53:         );
54: 
55:         if (is_string($key)) {
56:             return array_key_exists($key, $messageTemplates) ? $messageTemplates[$key] : null;
57:         }
58: 
59:         return $messageTemplates;
60:     }
61: 
62:     /**
63:      * Get the default config for this validator
64:      *
65:      * @param   string|null  $key  Get the config by key, if omitted the full config is returned
66:      * @return  array
67:      */
68:     public static function getDefaultConfig($key = null)
69:     {
70:         $config = apply_filters('quform_default_config_validator_regex', array(
71:             'pattern' => '',
72:             'invert' => false,
73:             'messages' => array(
74:                 self::INVALID => '',
75:                 self::NOT_MATCH => ''
76:             )
77:         ));
78: 
79:         $config['type'] = 'regex';
80: 
81:         if (Quform::isNonEmptyString($key)) {
82:             return Quform::get($config, $key);
83:         }
84: 
85:         return $config;
86:     }
87: }
88: