Parsers (#3)

* argonaut codecs

* arbitrary instances

* parsers

* comments, foreachE

* updated ejson dep

Author: cryogenian

README.md

@@ -13,10 +13,7 @@ bower install purescript-sqlsquare
 
 ## Documentation
 
-There are two examples (extracted from [slamdata](https://github.com/slamdata/slamdata))
+There is an example (extracted from [slamdata](https://github.com/slamdata/slamdata))
 + Extraction sql fields from array of jsons: [here](test/src/Argonaut.purs)
-+ Interpretation query language of [purescript-search](https://github.com/slamdata/purescript-search):
-[here](test/src/Search.purs)
-
 
 Module documentation is published on Pursuit: [http://pursuit.purescript.org/packages/purescript-sqlsquare](http://pursuit.purescript.org/packages/purescript-sqlsquare)

bower.json

@@ -20,7 +20,7 @@
     "purescript-pathy": "^3.0.2",
     "purescript-profunctor": "^2.0.0",
     "purescript-profunctor-lenses": "^2.6.0",
-    "purescript-ejson": "^7.0.0"
+    "purescript-ejson": "^8.0.0"
   },
   "devDependencies": {
     "purescript-argonaut": "^2.0.0",

src/SqlSquare.purs

@@ -1,9 +1,41 @@
 module SqlSquare
-  ( module AST
+  ( Sql
+  , print
+  , encodeJson
+  , decodeJson
+  , arbitrarySqlOfSize
+  , module Sig
   , module Lenses
   , module Constructors
+  , module Parser
   ) where
 
-import SqlSquare.AST as AST
+import Prelude
+
+import Data.Argonaut as J
+import Data.Either (Either)
+import Data.Functor.Mu (Mu)
+import Data.Json.Extended as EJ
+
+import Matryoshka (cata, anaM)
+
+import SqlSquare.Signature as Sig
 import SqlSquare.Lenses as Lenses
 import SqlSquare.Constructors as Constructors
+import SqlSquare.Parser as Parser
+
+import Test.StrongCheck.Gen as Gen
+
+type Sql = Mu (Sig.SqlF EJ.EJsonF)
+
+print ∷ Sql → String
+print = cata $ Sig.printSqlF EJ.renderEJsonF
+
+encodeJson ∷ Sql → J.Json
+encodeJson = cata $ Sig.encodeJsonSqlF EJ.encodeJsonEJsonF
+
+decodeJson ∷ J.Json → Either String Sql
+decodeJson = anaM $ Sig.decodeJsonSqlF EJ.decodeJsonEJsonF
+
+arbitrarySqlOfSize ∷ Int → Gen.Gen Sql
+arbitrarySqlOfSize = anaM $ Sig.arbitrarySqlF EJ.arbitraryEJsonF