This processor is intended for use in Daux.io normalizing urls

processor.php

<?php 

/**
 * This processor is intended for use in Daux.io
 * It may be dangerous in case you're not carefull while naming directories
 * 
 * File Xxx.md and xxX.md would be translated into xxx.md
 * File geś.md and gęs.md would become ges.md 
 * 
 * You've been warned :)
 * 
 * @license dunno, some kind of free license, do whatever you want with this processor
 * 
 * @author Grzegorz Zawadzki <kontakt@seigi.eu>
 * 
 */

namespace Todaymade\Daux\Extension;

use Todaymade\Daux\Tree\Root;

class Processor extends \Todaymade\Daux\Processor
{
    public function manipulateTree(Root $root)
    {
		$this->parseDirectory($root);
    }
	
	private function parseDirectory(\Todaymade\Daux\Tree\Directory $object) {
		foreach($object->getEntries() as $tempname => $val) {
			$this->updateUri($val);
			if($val instanceof \Todaymade\Daux\Tree\Directory)
				$this->parseDirectory($val);
		}
	}
	
	private function updateUri(\Todaymade\Daux\Tree\Entry $object) {
		$object->setUri($x = $this->fixString($object->getUri()));
	}
	private function fixString($str) {
		// Taken from: https://stackoverflow.com/questions/3371697/replacing-accented-characters-php
		
		$unwanted_array = array(
			'Š'=>'S', 'š'=>'s', 'Ž'=>'Z', 'ž'=>'z', 'À'=>'A', 'Á'=>'A', 'Â'=>'A', 'Ã'=>'A', 'Ä'=>'A', 'Å'=>'A', 'Æ'=>'A', 'Ç'=>'C', 'È'=>'E', 'É'=>'E',
			'Ê'=>'E', 'Ë'=>'E', 'Ì'=>'I', 'Í'=>'I', 'Î'=>'I', 'Ï'=>'I', 'Ñ'=>'N', 'Ò'=>'O', 'Ó'=>'O', 'Ô'=>'O', 'Õ'=>'O', 'Ö'=>'O', 'Ø'=>'O', 'Ù'=>'U',
			'Ú'=>'U', 'Û'=>'U', 'Ü'=>'U', 'Ý'=>'Y', 'Þ'=>'B', 'ß'=>'Ss', 'à'=>'a', 'á'=>'a', 'â'=>'a', 'ã'=>'a', 'ä'=>'a', 'å'=>'a', 'æ'=>'a', 'ç'=>'c',
			'è'=>'e', 'é'=>'e', 'ê'=>'e', 'ë'=>'e', 'ì'=>'i', 'í'=>'i', 'î'=>'i', 'ï'=>'i', 'ð'=>'o', 'ñ'=>'n', 'ò'=>'o', 'ó'=>'o', 'ô'=>'o', 'õ'=>'o',
			'ö'=>'o', 'ø'=>'o', 'ù'=>'u', 'ú'=>'u', 'û'=>'u', 'ý'=>'y', 'þ'=>'b', 'ÿ'=>'y' );
		return mb_strtolower(strtr( $str, $unwanted_array));

	}
}