Fix for slashdot bug, I think.

plugins/RSS.py

@@ -159,11 +159,16 @@ class RSS(callbacks.Privmsg):
                 oldheadlines = []
             newresults = self.getFeed(url)
             newheadlines = self.getHeadlines(newresults)
-            for headline in oldheadlines:
+            def headlineEq(h1, h2):
+                return h1.lower().split() == h2.lower().split()
+            for (i, oldheadline) in enumerate(oldheadlines):
                 try:
-                    newheadlines.remove(headline)
-                except ValueError:
-                    pass
+                    newheadline = newheadlines[i]
+                except IndexError:
+                    break
+                if headlineEq(oldheadline, newheadline):
+                    newheadlines[i] = None
+            newheadlines = filter(None, newheadlines) # Removes Nones.
             if newheadlines:
                 for channel in channels:
                     bold = self.registryValue('bold', channel)

test/test_RSS.py

@@ -44,6 +44,8 @@ if network:
 
         def testRss(self):
             self.assertNotError('rss %s' % url)
+            m = self.assertNotError('rss %s' % url)
+            self.failUnless(m.args[1].count('||') == 1)
 
         def testRssAdd(self):
             self.assertNotError('rss add advogato %s' % url)