uxadt 0.0.0.1 → 0.0.13.0

raw patch · 4 files changed

+163/−794 lines, 4 filesdep +jsondep +mtlPVP: major bump suggested

API removals or changes: PVP suggests a major version bump

Dependencies added: json, mtl

API changes (from Hackage documentation)

Files

• Data/UxADT.hs +139/−0
• LICENSE +18/−706
• Text/UxADT.hs +0/−82
• uxadt.cabal +6/−6

@@ -0,0 +1,139 @@+---------------------------------------------------------------------+-- +-- | UxADT+--+-- @Data\/UxADT.hs@+--+--   A library that supports a universal, cross-platform embedded+--   representation for algebraic data type (ADT) values.+--+--   Web:     uxadt.org+--   Version: 0.0.13.0+--+--++----------------------------------------------------------------+-- ++{-# LANGUAGE DeriveDataTypeable, ScopedTypeVariables #-}++module Data.UxADT+  where++import Data.Ratio+import Data.Data+import Text.JSON+import Control.Monad.State++----------------------------------------------------------------+-- | UxADT Data type definition.++type Variable = String+type Constructor = String++data UxADT =+    V Variable+  | B Bool+  | R Rational+  | S String+  | C Constructor [UxADT]+  | L [UxADT]+  | None+  deriving (Show, Eq)++----------------------------------------------------------------+-- | Conversion from arbitrary algebraic data type values to+--   UxADT values.++uxadt :: Data a => a -> UxADT+uxadt x =+  let -- Helper function for conversion from lists.+      mkCons :: [UxADT] -> UxADT+      mkCons [x, L xs] = L $ x:xs+      mkCons _         = None++      rep = dataTypeRep (constrType $ toConstr x)+      ty = dataTypeName $ dataTypeOf x      +  in if ty == "Prelude.Bool" then+       B (case show (toConstr x) of "True" -> True ; "False" -> False)+     else if rep == IntRep then+       R (toRational (read (show (toConstr x)) :: Integer))+     else if rep == FloatRep then+       R (toRational (read (show (toConstr x)) :: Float))+     else if ty == "Prelude.Double" then+       R (toRational (read (show (toConstr x)) :: Double))+     else if ty == "Prelude.[]" then+       case (show (toConstr x)) of+         "(:)" -> mkCons (gmapQ uxadt x)+         "[]" -> L []+     else if ty == "Prelude.(,)" then+       L (gmapQ uxadt x)+     else+       C (show (toConstr x)) (gmapQ uxadt x)++----------------------------------------------------------------+-- | Useful synonym.++toUxADT :: Data a => a -> UxADT+toUxADT = uxadt++----------------------------------------------------------------+-- | Conversion to an algebraic data type value from a UxADT+--   value.++fromUxADT :: Data a => DataType -> UxADT -> a+fromUxADT ty u =+  let constrByName :: String -> DataType -> Constr+      constrByName c' t = head [c | c <- dataTypeConstrs t, showConstr c == c']+  in case u of+    B b    -> fromConstr (constrByName (show b) (dataTypeOf True))+    R r    ->+      let nxt :: Data a => State [Integer] a+          nxt = do {(n:ns) <- get; put ns; return (fromConstr (toConstr n))}+      in evalState (fromConstrM nxt (constrByName ":%" (dataTypeOf r))) [numerator r, denominator r]+    C c [] -> fromConstr (constrByName c ty)+    C c us ->+      let nxt :: Data a => State [UxADT] a+          nxt = do {(u:us) <- get; put us; return (fromUxADT ty u)}+      in evalState (fromConstrM nxt (constrByName c ty)) us+    {-+    L [] -> fromConstr (constrByName "[]" (dataTypeOf []))+    L (u:us) ->+      let nxt :: Data a => State [UxADT] a+          nxt = do {(u:us) <- get; put us; return (fromUxADT ty u)}+      in evalState (fromConstrM nxt (constrByName c ty)) us+    -}+    _      ->+      error "UxADT value cannot be converted to native Haskell value."+       +----------------------------------------------------------------+-- | Translations between the native UxADT representation and a+--   native JSON representation.++instance JSON UxADT where+  showJSON u = case u of+    B b    -> JSBool b+    R r    -> JSRational True r+    S s    -> JSString $ toJSString s+    C c us -> makeObj [(c, showJSON us)]+    L us   -> JSArray (map showJSON us)+    _      -> JSNull++  readJSON j = case j of+    JSBool b          -> Ok $ B b+    JSRational True r -> Ok $ R $ r+    JSString s        -> Ok $ S $ fromJSString s+    JSObject o        ->+      case fromJSObject o of+        [(c, js)] ->+          case readJSONs js of +            Ok us -> Ok $ C c us+            _     -> Error "JSON not a value UxADT value."+        _ -> Error "JSON not a value UxADT value."+    JSArray js        ->+      case readJSONs j of +        Ok us -> Ok $ L us+        _     -> Error "JSON not a value UxADT value."+    _ -> Error "JSON not a value UxADT value."++--eof

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@@ -1,82 +0,0 @@----------------------------------------------------------------------- UxADT--- --- Text/UxADT.hs---   Universal (cross-language) extensible representation for---   algebraic data type instances.--------------------------------------------------------------------- --module Text.UxADT-  where--import Data.String.Utils (join)--------------------------------------------------------------------- Data type definition.--type Variable = String-type Constructor = String--data UxADT =-    B Bool-  | I Int-  | F Float-  | D Double-  | S String-  | V Variable-  | C Constructor [UxADT]-  | L [UxADT]-  | None-  deriving  (Eq)--class ToUxADT a where-  uxadt :: a -> UxADT--------------------------------------------------------------------- Default membership in ToUxADT.--instance ToUxADT Bool where-  uxadt = B--instance ToUxADT Int where-  uxadt = I--instance ToUxADT Float where-  uxadt = F--instance ToUxADT Double where-  uxadt = D--instance ToUxADT a => ToUxADT [a] where-  uxadt l = L $ map uxadt l--instance ToUxADT a => ToUxADT (Maybe a) where-  uxadt m = maybe None uxadt m--------------------------------------------------------------------- Conversion to Javascript in ASCII string representation.--instance Show UxADT where-  show u = to "" u where-    to ind u = case u of-      B b    -> show b-      I i    -> show i-      F f    -> show f-      D d    -> show d-      S s    -> "\"" ++ s ++ "\""-      V v    -> "uxadt.V(\"" ++ v ++ "\")"-      C c us -> "uxadt.C(\"" ++ c ++ "\", [" ++ join ", " [show u | u <- us] ++ "])"-      L   us -> "[" ++ join ", " [show u | u <- us] ++ "]"-      None   -> "uxadt.None"--------------------------------------------------------------------- Other useful functions.--javaScriptModule :: String -> UxADT -> String-javaScriptModule name u = -  "var " ++ name ++ " = (function(){return " ++ show u ++ ";})();"----eof

@@ -1,18 +1,18 @@ Name:              uxadt
-Version:           0.0.0.1
+Version:           0.0.13.0
 Cabal-Version:     >= 1.6
 License:           GPL-3
 License-File:      LICENSE
-Synopsis:          Cross-language extensible representation for algebraic data types.
-Description:       Universal (cross-language) extensible representation for algebraic data type instances.
-Category:          Text
+Synopsis:          Universal (cross-language) extensible representation for algebraic data type instances.
+Description:       A library that supports a universal, cross-platform embedded representation for algebraic data type (ADT) values.
+Category:          Data
 Author:            Andrei Lapets
 Maintainer:        Andrei Lapets <lapets@bu.edu>
 Build-Type:        Simple
 
 Library
-  Exposed-Modules: Text.UxADT
-  Build-Depends:   base >= 3 && < 5, MissingH
+  Exposed-Modules: Data.UxADT
+  Build-Depends:   base >= 3 && < 5, json, mtl, MissingH
 
 Source-Repository head
   Type:            git