use Arabic characters in slug

[EsmailKasem]

hi , this is perfect work but i want use Arabic characters in slug

[NetTecture]

You are aware that this is a nightmare? How do you do htat - LTR when arabic is RTL? Spell the words backwarrds? What if the arabic speaker works on an english language PC. What if he sends the URL to a non arabic speaker to enter it and download something?
There is a reason that most language spakers stiuck to english common letters. There is a reason for the slug rules as they are. I work ona CMS with that and I had DAYS of discussions about handling the multi lingual aspects - and it is a nighmare, and it is even worse so when you go not only into other langague but also other direction.