Update haskell setup.

haskell/.ghc.hs

@@ -0,0 +1,9 @@
+import Control.Applicative
+import Control.Monad
+import Data.Monoid
+import Data.Maybe
+import Data.List
+import Data.Bool
+import qualified Data.Set as S
+import qualified Data.Map as M
+import qualified Data.Text as T

haskell/.ghci

@@ -1 +1,5 @@
 :set prompt "λ "
+:set -XPackageImports
+:set -XOverloadedStrings
+:set -XScopedTypeVariables -XRankNTypes
+:l ~/.ghc.hs

haskell/.profile.d/10-path-haskell.sh

@@ -1,3 +1,3 @@
 # haskell/.profile.d/10-path-haskell.sh
-PATH="${HOME}/.cabal/bin:${PATH}:${HOME}/.cabin/bin"
+PATH="${PATH}:${HOME}/.cabal/bin"
 export PATH

haskell/.profile.d/20-functions-haskell.sh

@@ -0,0 +1,15 @@
+# haskell/.profile.d/20-functions-haskell.sh
+hmap()
+{
+  ghc -e "interact ($*)"
+}
+
+hmapl()
+{
+  hmap "unlines.($*).lines"
+}
+
+hmapw()
+{
+  hmapl "map (unwords.($*).words)"
+}

haskell/.profile.d/99-alias-haskell.sh

@@ -0,0 +1,2 @@
+# haskell/.profile.d/99-alias-haskell.sh
+alias ghce="ghc -e ':l ~/.ghc.hs' -e"