diff -r e2face1be50e -r 3975fa5ed630 scan.lua
--- a/scan.lua	Tue Mar 17 21:39:41 2009 +0200
+++ b/scan.lua	Sat Sep 12 21:27:57 2009 +0300
@@ -1,4 +1,8 @@
+
+module("scan", package.seeall)
+
 require('lfs')
+require('path')
 
 local function filtered_dir(d) 
     local f, s_, v_ = lfs.dir(d)
@@ -13,7 +17,6 @@
     return g, s_, v_
 end
 
-
 function scan(d)
     local h={}
     for f in filtered_dir(d) do
@@ -23,7 +26,7 @@
             local nh=scan(n)
             h[n]=nh
         elseif a.mode=='file' then
-            h[n]=true
+            h[f]=true
         end
     end
     return h
@@ -38,3 +41,16 @@
         end
     end
 end
+
+function map(h, g)
+    local function dir(prefix, name)
+        return path.join(prefix, name)
+    end
+    
+    local function file(prefix, name)
+        local f=path.join(prefix, name)
+        g(f)
+    end
+    
+    hfold(h, "", dir, file)
+end