env.rb in trac-wiki-0.3.22

- old
+ new

@@ -129,13 +129,19 @@
           cur = cur[subkey]
         elsif cur.is_a? Array
           cur = cur[subkey.to_i]
         else
           #print "at(#{key})->: default"
-          return default
+          cur = nil
         end
         #print "at(#{key}) -> default\n" if cur.nil?
-        return default if cur.nil?
+        if cur.nil?
+          if ! @parser.at_callback.nil?
+            val = @parser.at_callback.call(key, @env) 
+            return val if ! val.nil?
+          end
+          return default
+        end
       end
       #rint "at(#{key})->#{cur}\n"
       to_str ? cur.to_s : cur
     end
     def atput(key, val = nil)