diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,20 +1,13 @@
-Copyright (c) 2008 Wang, Jinjing
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
+(c) 2008 Wang, Jinjing
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENMPS. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
+This work ‘as-is’ we provide.
+No warranty, express or implied.
+We’ve done our best,
+to debug and test.
+Liability for damages denied.
 
+Permission is granted hereby,
+to copy, share, and modify.
+Use as is fit,
+free or for profit.
+On this notice these rights rely.
diff --git a/MPS/Snippets.hs b/MPS/Snippets.hs
--- a/MPS/Snippets.hs
+++ b/MPS/Snippets.hs
@@ -20,9 +20,9 @@
 import qualified Text.ParserCombinators.Parsec as P
 import Data.Foldable
 import Debug.Trace
-import Text.Pandoc.UTF8
 import Text.Pandoc
-
+import qualified Codec.Binary.UTF8.String as Codec
+import System.Directory
 
 import Prelude hiding ((.), sum, product, maximum, minimum, 
   foldl, foldr, foldl1, foldr1, concat, concatMap, and, or, any, all, elem)
@@ -319,10 +319,9 @@
 
 
 
-
 -- Text
-markdown = fromUTF8 >>> readMarkdown defaultParserState >>> writeHtml defaultWriterOptions
-markdown' = fromUTF8 >>> readMarkdown defaultParserState >>> writeHtmlString defaultWriterOptions >>> toUTF8
+markdown = from_utf8 >>> readMarkdown defaultParserState >>> writeHtml defaultWriterOptions
+markdown' = from_utf8 >>> readMarkdown defaultParserState >>> writeHtmlString defaultWriterOptions >>> to_utf8
 
 
 -- Monad
@@ -331,3 +330,18 @@
 
 a <.> b = a .liftM b
 infixl 9 <.>
+
+
+-- String
+lower = map toLower
+upper = map toUpper
+
+-- IO
+ls s = getDirectoryContents s <.> (\\ [".", ".."])
+
+-- Text
+filter_comment = lines >>> map strip >>> reject null >>> reject (head >>> (== '#')) >>> unlines
+
+-- UTF8
+from_utf8 = Codec.decodeString
+to_utf8 = Codec.encodeString
diff --git a/mps.cabal b/mps.cabal
--- a/mps.cabal
+++ b/mps.cabal
@@ -1,17 +1,18 @@
-Name:                mps
-Version:             0.0
-Build-type: 		 Simple
-Synopsis:            message passing style helpers
-Description:         message passing style helpers
-License:             BSD3
-Author:              Wang, Jinjing
-Maintainer:          Wang, Jinjing <nfjinjing@gmail.com>
-Build-Depends:       base
-Cabal-version:		 >= 1.2
-data-files:			 README.markdown
-category:			 Development
-license-file:	     LICENSE
+Name:                 mps
+Version:              0.0.0.1
+Build-type: 		      Simple
+Synopsis:             message passing style helpers
+Description:          message passing style helpers
+License:              BSD3
+Author:               Wang, Jinjing
+Maintainer:           Wang, Jinjing <nfjinjing@gmail.com>
+Build-Depends:        base
+Cabal-version:        >= 1.2
+data-files:			      README.markdown
+category:			        Development
+license-file:	        LICENSE
+homepage:             http://github.com/nfjinjing/mps/
 
 library
-  build-depends: base, containers, array, parallel, fgl, QuickCheck, time, bytestring >= 0.9.1.2, pandoc >= 0.46, regexpr >= 0.2.9, parsec >= 3.0.0
+  build-depends: base, containers, array, parallel, fgl, QuickCheck, time, bytestring >= 0.9.1.2, pandoc >= 1.0.0.1, regexpr >= 0.2.9, parsec >= 2.1.0, utf8-string >= 0.3.1, directory >= 1.0.0.1
   exposed-modules: MPS, MPS.Snippets, MPS.Hack.Dot