Read mixed encoding string

Question

I read some string with (windows-1256) encoding but the numbers in that string encoded using (UTF-8) and as a result all text except numbers (encoded with utf-8) read but numbers displays as (?) which is acceptable. but i want to know how can i read complete text without problem, how can i know when to switch between encodings to read correct text.
NOTE: Browsers displays these kind of text correctly so they know when they should switch

Any solution or code ?

Answer 1

The lower half of the windows-1256 code page is the same as ASCII. Digits in UTF-8 are also the same as ASCII - if you read the string with windows-1256 encoding, it should work just fine.