Namespaces

Classes

Interfaces

Exceptions

Functions

1: <?php
2:
3: // Enum = Enumerated
4: /**
5: * Validates a keyword against a list of valid values.
6: * @warning The case-insensitive compare of this function uses PHP's
7: * built-in strtolower and ctype_lower functions, which may
8: * cause problems with international comparisons
9: */
10: class HTMLPurifier_AttrDef_Enum extends HTMLPurifier_AttrDef
11: {
12:
13: /**
14: * Lookup table of valid values.
15: * @type array
16: * @todo Make protected
17: */
18: public $valid_values = array();
19:
20: /**
21: * Bool indicating whether or not enumeration is case sensitive.
22: * @note In general this is always case insensitive.
23: */
24: protected $case_sensitive = false; // values according to W3C spec
25:
26: /**
27: * @param array $valid_values List of valid values
28: * @param bool $case_sensitive Whether or not case sensitive
29: */
30: public function __construct($valid_values = array(), $case_sensitive = false)
31: {
32: $this->valid_values = array_flip($valid_values);
33: $this->case_sensitive = $case_sensitive;
34: }
35:
36: /**
37: * @param string $string
38: * @param HTMLPurifier_Config $config
39: * @param HTMLPurifier_Context $context
40: * @return bool|string
41: */
42: public function validate($string, $config, $context)
43: {
44: $string = trim($string);
45: if (!$this->case_sensitive) {
46: // we may want to do full case-insensitive libraries
47: $string = ctype_lower($string) ? $string : strtolower($string);
48: }
49: $result = isset($this->valid_values[$string]);
50:
51: return $result ? $string : false;
52: }
53:
54: /**
55: * @param string $string In form of comma-delimited list of case-insensitive
56: * valid values. Example: "foo,bar,baz". Prepend "s:" to make
57: * case sensitive
58: * @return HTMLPurifier_AttrDef_Enum
59: */
60: public function make($string)
61: {
62: if (strlen($string) > 2 && $string[0] == 's' && $string[1] == ':') {
63: $string = substr($string, 2);
64: $sensitive = true;
65: } else {
66: $sensitive = false;
67: }
68: $values = explode(',', $string);
69: return new HTMLPurifier_AttrDef_Enum($values, $sensitive);
70: }
71: }
72:
73: // vim: et sw=4 sts=4
74:
API documentation generated by ApiGen v7.0.0-alpha.6