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efrain |
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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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