jit.str.regexp QUESTION

Hi List,

I am trying to filter images and websnapr from a xml, but can't figure out the following...:

I have the search as

jit.str.regexp @re src="[\w|/|:|?|.|=|&]*?\.(?:jpg|gif|png|htm|com|html|php)"

all works well, but I also want to include .co.uk... but don't know how... Help would be much appreciated ... thanks
I tried
jit.str.regexp @re src="[\w|/|:|?|.|=|&]*?\.(?:jpg|gif|png|htm|com|html|php|co.uk)" but no luck

please help