<?php

// this MUST be placed in post, as it assumes that any value in dir is valid

/**
 * Post-trasnform that ensures that bdo tags have the dir attribute set.
 */
class HTMLPurifier_AttrTransform_BdoDir extends HTMLPurifier_AttrTransform {
	
	/**
	 *
	 * @param array $attr        	
	 * @param HTMLPurifier_Config $config        	
	 * @param HTMLPurifier_Context $context        	
	 * @return array
	 */
	public function transform($attr, $config, $context) {
		if (isset ( $attr ['dir'] )) {
			return $attr;
		}
		$attr ['dir'] = $config->get ( 'Attr.DefaultTextDir' );
		return $attr;
	}
}

// vim: et sw=4 sts=4