add commandline completion to 'defsearch'

NEWS

@@ -3,6 +3,7 @@
     * version 2.0 (probably)
     * IMPORTANT: renamed Startup and Quit autocmd events to VimperatorEnter and
       VimperatorLeave respectively
+    * add commandline completion to 'defsearch'
     * add 'helpfile' option
     * add 'wildignore' option
     * add :finish command

content/bookmarks.js

@@ -100,7 +100,17 @@ liberator.Bookmarks = function () //{{{
 
     liberator.options.add(["defsearch", "ds"],
         "Set the default search engine",
-        "string", "google");
+        "string", "google",
+        {
+            completer: function (filter)
+            {
+                return liberator.completion.url("", "s")[1]; 
+            },
+            validator: function (value)
+            {
+                return liberator.completion.url("", "s")[1].some(function (s) s[0] == value);
+            }
+        });
 
     liberator.options.add(["preload"],
         "Speed up first time history/bookmark completion",

content/options.js

@@ -700,7 +700,7 @@ liberator.Options = function () //{{{
                         if (option.hasName(filter))
                         {
                             if (option.completer)
-                                return [filter.length + 1, option.completer(filter)];
+                                return [filter.length + 1, option.completer(filter)]; // FIXME: filter should be component after "option="
                             return [filter.length + 1, [[option.value + "", ""]]];
                         }
                     }