Merge pull request #12 from purescript/alternative

Add Alt, Plus, MonadPlus, update Alternative

Author: garyb

README.md

@@ -4,6 +4,8 @@
 
 ### Type Class Instances
 
+    instance altArray :: Alt Prim.Array
+
     instance alternativeArray :: Alternative Prim.Array
 
     instance applicativeArray :: Applicative Prim.Array
@@ -16,6 +18,10 @@
 
     instance monadArray :: Monad Prim.Array
 
+    instance monadPlusArray :: MonadPlus Prim.Array
+
+    instance plusArray :: Plus Prim.Array
+
     instance semigroupArray :: Semigroup [a]
 
 

bower.json

@@ -18,6 +18,7 @@
     "package.json"
   ],
   "dependencies": {
-    "purescript-maybe": "*"
+    "purescript-maybe": "~0.2.0",
+    "purescript-control": "~0.2.0"
   }
 }

src/Data/Array.purs

@@ -42,6 +42,10 @@ module Data.Array
   , span
   ) where
 
+import Control.Alt
+import Control.Plus
+import Control.Alternative
+import Control.MonadPlus
 import Data.Maybe
 import Prelude.Unsafe (unsafeIndex)
 
@@ -363,6 +367,12 @@ instance monadArray :: Monad []
 instance semigroupArray :: Semigroup [a] where
   (<>) = append
 
-instance alternativeArray :: Alternative [] where
-  empty = []
+instance altArray :: Alt [] where
   (<|>) = append
+  
+instance plusArray :: Plus [] where
+  empty = []
+  
+instance alternativeArray :: Alternative []
+
+instance monadPlusArray :: MonadPlus []