noun_arb_hack.js

var noun_arb_text = {
  _name: "text",
  rankLast: true,
  _magicWords: {
    url: {
      re: /\burl\b/ig,
      fn: function() Application.activeWindow.activeTab.document.URL,
    },
  },
  suggest: function( text, html, callback, selectionIndices ) {
    var suggestion = CmdUtils.makeSugg(text, html);
    /* If the input comes all or in part from a text selection,
     * we'll stick some html tags into the summary so that the part
     * that comes from the text selection can be visually marked in
     * the suggestion list.
     */
    if (selectionIndices) {
      var pre = suggestion.summary.slice(0, selectionIndices[0]);
      var middle = suggestion.summary.slice(selectionIndices[0],
                                            selectionIndices[1]);
      var post = suggestion.summary.slice(selectionIndices[1]);
      suggestion.summary = pre + "<span class='selection'>" +
        middle + "</span>" + post;
    }
    var suggs = [suggestion];
    for each(var p in this._magicWords) if(p.re.test(text))
      suggs.push(CmdUtils.makeSugg(text.replace(p.re, p.fn)));
    return suggs;
  }
};

nountype.js.diff

--- feed-parts/header/en/nountypes.js.orig	2008-12-30 16:08:16.000000000 +0900
+++ feed-parts/header/en/nountypes.js	2009-01-11 16:40:37.758800000 +0900
@@ -116,6 +116,12 @@
 var noun_arb_text = {
   _name: "text",
   rankLast: true,
+  _magicWords: {
+    url: {
+      re: /\burl\b/ig,
+      fn: function() Application.activeWindow.activeTab.document.URL,
+    },
+  },
   suggest: function( text, html, callback, selectionIndices ) {
     var suggestion = CmdUtils.makeSugg(text, html);
     /* If the input comes all or in part from a text selection,
@@ -131,7 +137,10 @@
       suggestion.summary = pre + "<span class='selection'>" +
 			     middle + "</span>" + post;
     }
-    return [suggestion];
+    var suggs = [suggestion];
+    for each(var p in this._magicWords) if(p.re.test(text))
+      suggs.push(CmdUtils.makeSugg(text.replace(p.re, p.fn)));
+    return suggs;
   }
 };