Regex and Option trick

Neat trick:

def findBetween(s: String, p1: String, p2: String) = (
  ("\\Q"+p1+"\\E(.*?)\\Q"+p2+"\\E").r 
  findFirstMatchIn s 
  map (_ group 1) 
  getOrElse ""
)

The trick here is that map, on an Option, applies the function if the option is Some, otherwise returns None. So I get to convert my Match into a particular group before I check if I got anything at all and return a default if not.