diff --git a/src/Data/Char/Frame.hs b/src/Data/Char/Frame.hs
--- a/src/Data/Char/Frame.hs
+++ b/src/Data/Char/Frame.hs
@@ -260,3 +260,10 @@
           (_, Parts (Vertical True False) (Horizontal True True)) -> adapt '\x2567'
           (_, Parts (Vertical True True) (Horizontal True True)) -> adapt '\x256A'
 
+
+{-
+'\x254C' Parts Light DOUBLE DASH HORIZONTAL
+'\x254D' Parts Heavy DOUBLE DASH HORIZONTAL
+'\x254E' Parts Light DOUBLE DASH VERTICAL
+'\x254F' Parts Heavy DOUBLE DASH VERTICAL
+-}
diff --git a/src/Data/Char/Number.hs b/src/Data/Char/Number.hs
--- a/src/Data/Char/Number.hs
+++ b/src/Data/Char/Number.hs
@@ -4,6 +4,11 @@
 import Data.Map (Map)
 
 
+{-
+fractionMaybe :: (Ord a, Fractional a) => a -> Maybe Char
+fractionMaybe x = Map.lookup x fractionMap
+-}
+
 fractionMap :: (Ord a, Fractional a) => Map a Char
 fractionMap =
    Map.fromList $
@@ -27,3 +32,8 @@
       (7/8, '\x215E') :
       []
 
+
+{-
+circled number
+\x2776
+-}
diff --git a/unicode.cabal b/unicode.cabal
--- a/unicode.cabal
+++ b/unicode.cabal
@@ -1,10 +1,10 @@
 Name:             unicode
-Version:          0.0.1.1
+Version:          0.0.1.2
 License:          BSD3
 License-File:     LICENSE
 Author:           Henning Thielemann <haskell@henning-thielemann.de>
 Maintainer:       Henning Thielemann <haskell@henning-thielemann.de>
-Homepage:         http://hub.darcs.net/thielema/unicode/
+Homepage:         https://hub.darcs.net/thielema/unicode/
 Category:         Text
 Synopsis:         Construct and transform unicode characters
 Description:
@@ -26,7 +26,7 @@
   * @rfc5051@: sorting of characters
 
 Tested-With:      GHC==7.4.2, GHC==8.4.1
-Cabal-Version:    >=1.8
+Cabal-Version:    >=1.10
 Build-Type:       Simple
 
 Flag buildExamples
@@ -34,20 +34,21 @@
   default:     False
 
 Source-Repository this
-  Tag:         0.0.1.1
+  Tag:         0.0.1.2
   Type:        darcs
-  Location:    http://hub.darcs.net/thielema/unicode/
+  Location:    https://hub.darcs.net/thielema/unicode/
 
 Source-Repository head
   Type:        darcs
-  Location:    http://hub.darcs.net/thielema/unicode/
+  Location:    https://hub.darcs.net/thielema/unicode/
 
 Library
   Build-Depends:
-    containers >=0.4 && <0.7,
-    semigroups >=0.1 && <1.0,
+    containers >=0.4 && <0.9,
+    semigroups >=0.1 && <1,
     base >=4 && <5
 
+  Default-Language: Haskell98
   GHC-Options:      -Wall
   Hs-Source-Dirs:   src
   Exposed-Modules:
@@ -55,6 +56,8 @@
     Data.Char.Frame
     Data.Char.Number
     Data.Char.Small
+--    Data.Char.Arrow
+--    Data.Char.Card
 
 Executable visualize-unicode
   If flag(buildExamples)
@@ -65,9 +68,10 @@
       base
   Else
     Buildable: False
-  Main-Is:          Visualize.hs
+  Default-Language: Haskell98
   GHC-Options:      -Wall
   Hs-source-dirs:   vis
+  Main-Is:          Visualize.hs
   Other-Modules:
     Visualize.Data.Char.Block
     Visualize.Data.Char.Frame
@@ -82,9 +86,10 @@
     containers,
     utility-ht >=0.0.1 && <0.1,
     base
-  Main-Is:          Test.hs
+  Default-Language: Haskell98
   GHC-Options:      -Wall
   Hs-source-dirs:   test
+  Main-Is:          Test.hs
   Other-Modules:
     Test.Data.Char.Block
     Test.Data.Char.Frame