--- autolink.original.user.js	2005-08-29 20:14:36.000000000 +0200
+++ autolink.user.js	2005-08-29 21:48:08.000000000 +0200
@@ -30,6 +30,9 @@
 
   Version history:
 
+    2005-08-29 21:00: Scope filter parameter regexp added by Johan Sundström. See
+                      http://ecmanaut.blogspot.com/2005/08/adopting-and-adapting-autolink.html
+
     2005-05-25 00:30: Fixed a bug where inserting a leaf made AutoLink re-examine 
                       the entire document from that leaf on.  This slowed down
                       the DHTML at http://www.tiddlywiki.com/, for example.
@@ -59,7 +62,7 @@
 
   I encourage you to create new filters in your copy of AutoLink. 
 
-  Filters have three fields:
+  Filters have three (or four) fields:
 
    * name (string)
        Used for tooltip on created links, e.g. "Link added by AutoLink filter: Plain Text Links".
@@ -74,7 +77,10 @@
        Arguments: |match|, an output of regexp.exec.  (May also treat RegExp.leftContext, etc. as inputs.)
        Returns: The URL to be used for a link, or |null| to cancel link creation.
        Must not use filter.regexp, but may use other regular expressions.
-    
+
+   * scope (regular expression, optional field)
+       The filter will only be processed on pages matching the URL, if given.
+
   This regular expression reference might be useful:
   http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:RegExp
   
@@ -362,6 +370,10 @@
   k=0;
   
   for (j = 0; filter = filters[j]; ++j) {
+    if (filter.scope && !filter.scope.test(location.href)) {
+      //GM_log( filter.name + ' filter does not apply to this URL.');
+      continue;
+    }
     regexp = filter.regexp;
     
     if (regexp.test(source)) {