RegEx - reusing subexpressions

Question

Say I have a regex matching a hexadecimal 32 bit number:

([0-9a-fA-F]{1,8})

When I construct a regex where I need to match this multiple ti

Answer 1

To reuse regex named capture group use this syntax: \k or \k'name'

So the answer is:

(?[0-9a-fA-F]{1,8})\s*:\s*\k

More info: http://www.regular-expressions.info/named.html