Ezy Scripting Language

System Overview & Problem Solved

Ezy is a minimalist, dynamically-typed scripting language crafted to explore compiler architecture and deterministic runtime execution. Engineered without third-party parser generators, it implements custom lexical analysis, Abstract Syntax Tree (AST) construction, scope environments with lexical closures, and an interactive terminal REPL.

Architecture & Pipeline Design

Custom Hand-written Lexer (indentation-aware), Recursive-Descent Parser, Tree-Walking AST Interpreter, Runtime Scope Environments, and CLI REPL.

Key Engineering Deliverables

• Custom lexical tokenizer supporting indentation-based block syntax
• Pure recursive-descent parser generating clean Abstract Syntax Trees
• First-class functions, lexical scoping, closures, and control flow primitives
• Zero external compiler dependencies — built entirely in pure Python