A Bytecode VM for Arithmetic in Haskell: The Parser

This post details the first part of a project to build a bytecode virtual machine for arithmetic expressions in Haskell. The VM will parse, compile, interpret, and run simple arithmetic expressions, including let bindings and nested let expressions. The author explains the expression grammar, parser implementation (using the attoparsec library), and error handling. Unit tests are presented to validate the parser's correctness. A brief overview of the AST interpreter's implementation and testing is also included. Future posts will cover the compiler and virtual machine.