How to find two digit number that is not part of a date using regular expression

Question

I have this long string value:

"10 12 10/05/2014 p4=34"

I would like to get only the two digit numbers (underlined):

"10 12 10/05/2014 p4=34"
 -- --               -- 

So the result should be

10 12 34

Answer 1

Have a try with:

(?<![\d/])\d\d(?![\d/])

Where:

(?<![\d/])  : negative lookbehind, assumes there're no digits nor slashes before.
\d\d        : 2 digits.
(?![\d/])   : negative lookahead, assumes there're no digits nor slashes after.