This task is a split in 3 tasks of a major task T115561 .

We voted in Arabic Wikipedia for the exclusive use of Western Arabic numerals (WAN) (0, 1, 2 ) instead of allowing the use of Eastern Arabic numerals (EAN) (٠‎ - ١‎ - ٢) when editing.
21 for / none against
https://ar.wikipedia.org/wiki/%D9%88%D9%8A%D9%83%D9%8A%D8%A8%D9%8A%D8%AF%D9%8A%D8%A7:%D8%A7%D9%84%D9%85%D9%8A%D8%AF%D8%A7%D9%86/%D8%B3%D9%8A%D8%A7%D8%B3%D8%A7%D8%AA/10/2015

And the related policy have been updated
https://ar.wikipedia.org/w/index.php?title=%D9%88%D9%8A%D9%83%D9%8A%D8%A8%D9%8A%D8%AF%D9%8A%D8%A7%3A%D8%AF%D9%84%D9%8A%D9%84_%D8%A7%D9%84%D8%A3%D8%B3%D9%84%D9%88%D8%A8&type=revision&diff=17231844&oldid=16952006

Task : script to help readers using Eastern Arabic numerals
In the discussion of the vote above, someone said that it is possible to automatically change E to W numerals when saving the edits. Can you add this feature to Arabic projects ? Some editors (specially those editing from cellphones) still use the EAN (٠‎ - ١‎ - ٢). If not, we are going to use a bot to periodically change numerals and make some exceptions (articles about the Indian numbering system, .. ).