Lexer integration.

bang.cabal

@@ -14,14 +14,31 @@ cabal-version:       >=1.10
 
 executable bang
   main-is:             Main.hs
-  build-depends:       base                 >= 4.8     && < 4.9,
+  build-depends:
+                       array                >= 0.5.1.0 && < 0.7,
+                       base                 >= 4.8     && < 4.9,
                        bytestring           >= 0.10    && < 0.11,
-                       optparse-applicative >= 0.12.1  && < 0.14
+                       lens                 >= 4.14    && < 4.18,
+                       monadLib             >= 3.7.3   && < 3.9,
+                       optparse-applicative >= 0.12.1  && < 0.14,
+                       text                 >= 1.2.2.1 && < 1.4
   hs-source-dirs:      src
   build-tools:         alex, happy
+  ghc-options:         -Wall
   default-language:    Haskell2010
-  other-extensions:    DeriveDataTypeable
+  other-extensions:    CPP,
+                       DeriveDataTypeable,
+                       DeriveFunctor,
+                       GeneralizedNewtypeDeriving,
+                       MagicHash,
+                       MultiParamTypeClasses,
+                       OverloadedStrings,
+                       TemplateHaskell
   other-modules:
-                       Paths_bang,
-                       Syntax.CommandLine
+                       Bang.CommandLine,
+                       Bang.Syntax.Lexer,
+                       Bang.Syntax.Location,
+                       Bang.Syntax.Name,
+                       Bang.Syntax.Token,
+                       Paths_bang