Danger, danger, high voltage, it can explode.

plugins/eval.rb

@@ -0,0 +1,22 @@
+include EventMachine::IRC::Commands
+
+Client.register_trigger("PRIVMSG") { |msg|
+    message = msg[:params][1]
+    destination = msg[:params][0]
+    if message[0..5] == ":eval " then
+        prog = message[6..-1]
+        puts "will try to eval: #{prog}"
+        begin
+            retval = proc {
+                $SAFE = 4
+                eval(prog)
+            }.call
+
+            Client.privmsg(destination, String.try_convert(retval.to_s))
+        rescue Exception => e
+            Client.privmsg(destination, e.inspect)
+            puts e.inspect
+            puts e.backtrace
+        end
+    end
+}