Edit File: AttrTransform.php
<?php /** * Processes an entire attribute array for corrections needing multiple values. * * Occasionally, a certain attribute will need to be removed and popped onto * another value. Instead of creating a complex return syntax for * HTMLPurifier_AttrDef, we just pass the whole attribute array to a * specialized object and have that do the special work. That is the * family of HTMLPurifier_AttrTransform. * * An attribute transformation can be assigned to run before or after * HTMLPurifier_AttrDef validation. See HTMLPurifier_HTMLDefinition for * more details. */ abstract class HTMLPurifier_AttrTransform { /** * Abstract: makes changes to the attributes dependent on multiple values. * * @param array $attr Assoc array of attributes, usually from * HTMLPurifier_Token_Tag::$attr * @param HTMLPurifier_Config $config Mandatory HTMLPurifier_Config object. * @param HTMLPurifier_Context $context Mandatory HTMLPurifier_Context object * @return array Processed attribute array. */ abstract public function transform($attr, $config, $context); /** * Prepends CSS properties to the style attribute, creating the * attribute if it doesn't exist. * @param array &$attr Attribute array to process (passed by reference) * @param string $css CSS to prepend */ public function prependCSS(&$attr, $css) { $attr['style'] = isset($attr['style']) ? $attr['style'] : ''; $attr['style'] = $css . $attr['style']; } /** * Retrieves and removes an attribute * @param array &$attr Attribute array to process (passed by reference) * @param mixed $key Key of attribute to confiscate * @return mixed */ public function confiscateAttr(&$attr, $key) { if (!isset($attr[$key])) { return null; } $value = $attr[$key]; unset($attr[$key]); return $value; } } // vim: et sw=4 sts=4
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