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htmlpurifier/library/HTMLPurifier/AttrTransform.php
Edward Z. Yang 66ddc4cc5a Add lots of documentation.
git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@293 48356398-32a2-884e-a903-53898d9a118a
2006-08-17 20:29:34 +00:00

33 lines
1.0 KiB
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.
*/
class HTMLPurifier_AttrTransform
{
/**
* Abstract: makes changes to the attributes dependent on multiple values.
*
* @param $attr Assoc array of attributes, usually from
* HTMLPurifier_Token_Tag::$attributes
* @param $config Mandatory HTMLPurifier_Config object.
* @returns Processed attribute array.
*/
function transform($attr, $config) {
trigger_error('Cannot call abstract function', E_USER_ERROR);
}
}
?>