Restore to a stage where it works and is easier to manage (#5)

Everything in the parser that needs to be normed is in a single .c + .h file
(also there is the scanner.c file)

flake.nix

@@ -0,0 +1,25 @@
+{
+  description = "Flake utils demo";
+
+  inputs.flake-utils.url = "github:numtide/flake-utils";
+  inputs.generic_c.url = "github:Maix0/generic_c";
+
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+    generic_c,
+  }:
+    flake-utils.lib.eachDefaultSystem (
+      system: let
+        pkgs = nixpkgs.legacyPackages.${system};
+      in {
+        devShell = pkgs.mkShell {
+          packages = with pkgs; [clang valgrind gnumake readline.out readline.dev generic_c.packages.${system}.default];
+          shellHook = ''
+            alias 'valgrind'='valgrind --supressions=${./valgrind_readline_leaks_ignore.txt}';
+          '';
+        };
+      }
+    );
+}