<?php

/**
 * Pre-transform that changes deprecated name attribute to ID if necessary
 */
class HTMLPurifier_AttrTransform_Name extends HTMLPurifier_AttrTransform {
	
	/**
	 *
	 * @param array $attr        	
	 * @param HTMLPurifier_Config $config        	
	 * @param HTMLPurifier_Context $context        	
	 * @return array
	 */
	public function transform($attr, $config, $context) {
		// Abort early if we're using relaxed definition of name
		if ($config->get ( 'HTML.Attr.Name.UseCDATA' )) {
			return $attr;
		}
		if (! isset ( $attr ['name'] )) {
			return $attr;
		}
		$id = $this->confiscateAttr ( $attr, 'name' );
		if (isset ( $attr ['id'] )) {
			return $attr;
		}
		$attr ['id'] = $id;
		return $attr;
	}
}

// vim: et sw=4 sts=4