regex in sublime text for change [0-9]th

Question

In my several pages I'd like to change all

43th 
12th

in UTF-8 code

43&th;
12&th;

how can I do this in sublime text 2 using regex?

Thanks in advance

Luca

Answer 1

To find the element, you can use a regular expression like this:

([0-9][0-9])th

Then replace with:

$1&th;