In this string "13 12", I like to find if there is an occurrence of '3', but I am not interested in char '3' which is part of "13". In other word I am looking for number 3 not 13.
By using the following code in python I always get a match,
match = re.match('3','13 12')
Any help regarding how to find isolated occurrences of characters or sequence of characters will be appreciated.