Readme: Project Midnight

Basic implementaion of lisp based off of http://www.buildyourownlisp.com/

Extra features:

Evaluation:

• Power
• Modulus
• support for commands add, sub, mul (text representations of mathematical evaluations)
• support for and, not, or (&&, !, ||)
• join, head, tail work with string-types
• read -> turn a string into a single q-expression

Q-Expressions:

• Add a builtin function cons that takes a value and a Q-Expression and appends it to the front.
• Add a builtin function len that returns the number of elements in a Q-Expression.
• Add a builtin function init that returns all of a Q-Expression except the final element.
• Add a function "printall {}" which prints all symbols stored in the environment

Error-Handling

• Macros for handling type errors, count errors (expected vs. received), empty erros
• command to exit

Data Structures:

• Added "op_codes" for functions (add, subtract, join, etc...) to make for easy debugging and handling special cases

Standard Library:

• standard library "lib.lspy" is loaded on startup

Garbage Collector:

• Utilize a garbage collector instead of the copy-everywhere structure of original code

Todo:

• enable support for disk access: fopen, fget, fwrite, fread, fgetc
• Support for more types in computation --> double
• User defined data types--> like structs
• Hash tables for builtin functions
• Use while instead of recursion for performance gains