rot13 plugin: provide a filter

1 files changed, 16 insertions, 1 deletions

diff --git a/data/rbot/plugins/rot13.rb b/data/rbot/plugins/rot13.rb
index 447d0803..36155962 100644
--- a/data/rbot/plugins/rot13.rb
+++ b/data/rbot/plugins/rot13.rb
@@ -1,9 +1,24 @@
+#-- vim:sw=2:et
+#++
+#
+# :title: ROT13 plugin
+#
 class RotPlugin < Plugin
+  def initialize
+    super
+    @bot.register_filter(:rot13) { |s|
+      ss = s.dup
+      ss[:text] = s[:text].tr("A-Za-z", "N-ZA-Mn-za-m")
+      ss
+    }
+  end
+
   def help(plugin, topic="")
     "rot13 <string> => encode <string> to rot13 or back"
   end
+
   def rot13(m, params)
-    m.reply params[:string].join(" ").tr("A-Za-z", "N-ZA-Mn-za-m");
+    m.reply @bot.filter(:rot13, params[:string].to_s)
   end
 end
 plugin = RotPlugin.new