diff -r cbc2270c2938 -r 4758a6155878 progs/crawler2.scala
--- a/progs/crawler2.scala	Thu Sep 26 10:36:24 2013 +0100
+++ b/progs/crawler2.scala	Thu Sep 26 10:39:23 2013 +0100
@@ -5,7 +5,7 @@
 import scala.util.matching.Regex
 import scala.util._
 
-// gets the first ~10K of a page
+// gets the first ~10K of a web-page
 def get_page(url: String) : String = {
   Try(Source.fromURL(url).take(10000).mkString) getOrElse 
     { println(s"  Problem with: $url"); ""}
@@ -28,7 +28,7 @@
 // visits pages potentially more than once
 def crawl(url: String, n: Int) : Unit = {
   if (n == 0) ()
-  //else if (my_urls.findFirstIn(url) == None) ()
+  else if (my_urls.findFirstIn(url) == None) ()
   else {
     println(s"Visiting: $n $url")
     for (u <- get_all_URLs(get_page(url))) crawl(u, n - 1)