Clean up

README.md

@@ -1,6 +1,6 @@
 # sapling
 
-sapling is a "micro-language" that I'm working on to investigate [Tree Calculus](https://treecalcul.us/specification) .
+sapling is a "micro-language" that I'm working on to investigate [Tree Calculus](https://github.com/barry-jay-personal/typed_tree_calculus/blob/main/typed_program_analysis.pdf) .
 
 It offers a minimal amount of syntax sugar:
 
@@ -9,10 +9,10 @@ It offers a minimal amount of syntax sugar:
 - Lambda abstractions
 - List, Integer, and String literals
 
-This is an active experimentation project by someone who has no idea what they're doing.
+This is an active experimentation project by [someone who has no idea what they're doing](https://eversole.co).
 
 ## Acknowledgements 
 
 Tree Calculus was discovered by [Barry Jay](https://github.com/barry-jay-personal/blog). 
 
-[treecalcul.us](https://treecalcul.us) is an excellent website with an intuitive playground created by [Johannes Bader](https://johannes-bader.com/) that introduced me to Tree Calculus. If sapling sounds interesting but you don't want to figure out how to compile Haskell, check his site out.
+[treecalcul.us](https://treecalcul.us) is an excellent website with an intuitive playground created by [Johannes Bader](https://johannes-bader.com/) that introduced me to Tree Calculus. If sapling sounds interesting but compiling this repo sounds like a hassle, you should check out his site.

flake.nix

@@ -41,26 +41,5 @@
         };
         devShell = self.devShells.${system}.default;
 
-        packages.${containerPackageName} = pkgs.dockerTools.buildImage {
-          name = "sapling";
-
-          copyToRoot = pkgs.buildEnv {
-            name = "image-root";
-            paths = [ sapling ];
-            pathsToLink = [ "/bin" ];
-          };
-          tag = "latest";
-          config = {
-            Cmd = [
-              "/bin/sapling"
-            ];
-            WorkingDir = "/app";
-            ExposedPorts = {
-              "3000/tcp" = {};
-            };
-            extraCommands = ''
-            '';
-          };
-        };
       });
 }

sapling.cabal

@@ -2,7 +2,7 @@ cabal-version: 1.12
 
 name:           sapling
 version:        0.0.1
-description:    Tree Calculus Experiment
+description:    Tree Calculus experiment repository
 author:         James Eversole
 maintainer:     james@eversole.co
 copyright:      James Eversole
@@ -10,8 +10,7 @@ license:        ISC
 license-file:   LICENSE
 build-type:     Simple
 extra-source-files:
-    README
+    README.md
-    ChangeLog.md
 
 executable sapling
   main-is: Main.hs

src/Research.hs

@@ -5,10 +5,7 @@ import Control.Monad.State
 import qualified Data.Map as Map
 import Data.Map (Map)
 
-data T
+data T = Leaf | Stem T | Fork T T
-  = Leaf     -- t
-  | Stem T   -- t t
-  | Fork T T -- t a b
   deriving (Show, Eq, Ord)
 
 apply :: T -> T -> T
@@ -40,14 +37,6 @@ _K = Stem Leaf
 _I :: T
 _I = apply (apply _S _K) _K -- Fork (Stem (Stem Leaf)) (Stem Leaf)
 
--- Lambda
-data Lambda
-  = Var String
-  | App Lambda Lambda
-  | Lam String Lambda
-  | TC T
-  deriving (Show, Eq)
-
 -- Booleans
 _false :: T
 _false = Leaf