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<?php |
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/** |
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* Provides lookup array of attribute types to HTMLPurifier_AttrDef objects |
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*/ |
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class HTMLPurifier_AttrTypes |
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{ |
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/** |
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* Lookup array of attribute string identifiers to concrete implementations. |
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* @type HTMLPurifier_AttrDef[] |
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*/ |
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protected $info = array(); |
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/** |
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* Constructs the info array, supplying default implementations for attribute |
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* types. |
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*/ |
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public function __construct() |
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{ |
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// XXX This is kind of poor, since we don't actually /clone/ |
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// instances; instead, we use the supplied make() attribute. So, |
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// the underlying class must know how to deal with arguments. |
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// With the old implementation of Enum, that ignored its |
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// arguments when handling a make dispatch, the IAlign |
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// definition wouldn't work. |
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// pseudo-types, must be instantiated via shorthand |
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$this->info['Enum'] = new HTMLPurifier_AttrDef_Enum(); |
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$this->info['Bool'] = new HTMLPurifier_AttrDef_HTML_Bool(); |
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$this->info['CDATA'] = new HTMLPurifier_AttrDef_Text(); |
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$this->info['ID'] = new HTMLPurifier_AttrDef_HTML_ID(); |
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$this->info['Length'] = new HTMLPurifier_AttrDef_HTML_Length(); |
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$this->info['MultiLength'] = new HTMLPurifier_AttrDef_HTML_MultiLength(); |
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$this->info['NMTOKENS'] = new HTMLPurifier_AttrDef_HTML_Nmtokens(); |
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$this->info['Pixels'] = new HTMLPurifier_AttrDef_HTML_Pixels(); |
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$this->info['Text'] = new HTMLPurifier_AttrDef_Text(); |
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$this->info['URI'] = new HTMLPurifier_AttrDef_URI(); |
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$this->info['LanguageCode'] = new HTMLPurifier_AttrDef_Lang(); |
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$this->info['Color'] = new HTMLPurifier_AttrDef_HTML_Color(); |
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$this->info['IAlign'] = self::makeEnum('top,middle,bottom,left,right'); |
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$this->info['LAlign'] = self::makeEnum('top,bottom,left,right'); |
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$this->info['FrameTarget'] = new HTMLPurifier_AttrDef_HTML_FrameTarget(); |
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$this->info['ContentEditable'] = new HTMLPurifier_AttrDef_HTML_ContentEditable(); |
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// unimplemented aliases |
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$this->info['ContentType'] = new HTMLPurifier_AttrDef_Text(); |
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$this->info['ContentTypes'] = new HTMLPurifier_AttrDef_Text(); |
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$this->info['Charsets'] = new HTMLPurifier_AttrDef_Text(); |
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$this->info['Character'] = new HTMLPurifier_AttrDef_Text(); |
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// "proprietary" types |
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$this->info['Class'] = new HTMLPurifier_AttrDef_HTML_Class(); |
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// number is really a positive integer (one or more digits) |
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// FIXME: ^^ not always, see start and value of list items |
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$this->info['Number'] = new HTMLPurifier_AttrDef_Integer(false, false, true); |
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} |
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private static function makeEnum($in) |
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{ |
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return new HTMLPurifier_AttrDef_Clone(new HTMLPurifier_AttrDef_Enum(explode(',', $in))); |
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} |
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/** |
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* Retrieves a type |
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* @param string $type String type name |
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* @return HTMLPurifier_AttrDef Object AttrDef for type |
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*/ |
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public function get($type) |
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{ |
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// determine if there is any extra info tacked on |
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if (strpos($type, '#') !== false) { |
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list($type, $string) = explode('#', $type, 2); |
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} else { |
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$string = ''; |
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} |
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if (!isset($this->info[$type])) { |
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trigger_error('Cannot retrieve undefined attribute type ' . $type, E_USER_ERROR); |
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return; |
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} |
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return $this->info[$type]->make($string); |
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} |
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/** |
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* Sets a new implementation for a type |
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* @param string $type String type name |
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* @param HTMLPurifier_AttrDef $impl Object AttrDef for type |
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*/ |
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public function set($type, $impl) |
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{ |
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$this->info[$type] = $impl; |
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} |
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} |
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// vim: et sw=4 sts=4 |
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