Hi Sean, If it is only a "..." that you care about, it might be fastest just to use the functions string::find, string::rfind, string::find_first_of, string::find_first_not_of, string::find_last_of, and string::find_last_not_of. I believe there are also fairly sophisticated find functions in <algorithm>. However, the regular expressions might do you better if you need something more complicated. Graham. _____ From: programmingblind-bounce@xxxxxxxxxxxxx [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Sean Farrow Sent: November 20, 2007 2:07 AM To: programmingblind@xxxxxxxxxxxxx Subject: regular expressions in c++ Hi: What is the best library/way of doing regular expressions in c++. I need to find any string that contains "..." Any help apreciated. Sean.