Is there a good plce to find information on all the available special characters, switches, options that can be used in a REGEXP string matching & searches? I feel comfortable with REGEXPs to a point, but I want to learn more about how they are used in matching, with things like m//g or s// or tr//isgcemx and all those letters that come BEFORE and AFTER the first and last slashes... Do I need to buy a book? Or is there a good webpage/site on this?