update roadmap and program syntax

TODO.md

@@ -0,0 +1,27 @@
+# Roadmap for building the pity interpreter
+
+- Build the AST data structure
+- Build pity lexer and test
+- Implement the basic functionality of Pity objects just for the sake of completely accomplish the parsing process and test
+- Write a module for interacting with PRCE2 and implement the `Regex` and `Match` object
+- Build AST by parsing Tokens. test, test, and test the AST AST
+- Setup the list of pity vm opcodes
+- Implement the compiler and its debugger (While compiling, apply Tail Call optimization and NaN Boxing). Test, test, and test
+- Implement the bytecode runner. Test, test and test
+- Complete the implementation of pity objects, test, test and test
+- Optimize the AST with the following optimizations
+
+1. Constant folding, test AST
+2. Common subexpression elimination, test AST
+3. Dead code elimination, test AST
+
+- Apply the following optimization during the compilation process
+
+1. Constant propagation, test compiler
+2. Code hoisting, test compiler
+3. (Maybe)? Register Allocation
+
+- Test language features
+- Test objects
+- Write 150 rosetta codes to test, test and test
+- Write documentation

hacking_pity/pity.md

@@ -297,6 +297,7 @@ each types here.
 
 - Bool
 - Pity
+- Any
 - Num
 - Rat
 - Str
@@ -313,6 +314,9 @@ each types here.
 - Range
 - Date
 - Sys
+- Supply
+- Promise
+- Laziness
 
 # Flow control