More sophisticated regex for parsing links.

earwigbot/commands/dictionary.py

@@ -128,7 +128,7 @@ class Dictionary(Command):
     def parse_body(self, body):
         substitutions = [
             ("<!--(.*?)-->", ""),
-            ("\[\[(.*?)\|(.*?)\]\]", r"\2"),
+            ("\[\[[^\]|]*?\|([^\]|]*?)\]\]", r"\1"),
             ("\{\{(.*?) of\|(.*?)\}\}", r"\1 of \2."),
             ("\{\{w\|(.*?)\}\}", r"\1"),
             ("\{\{surname(.*?)\}\}", r"A surname."),