Lucas Rangel
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Lucas Rangel

Software Engineer passionate about computer science and distributed systems.

Welcome to my blog where I write about programming languages, distributed systems, and software engineering. Currently exploring topics in Rust, Elixir, and programming language design.

Recent work includes OxyLisp, a Lisp interpreter written in Rust that covers lexing, parsing, and evaluation from scratch, and a language server for the Emmet abbreviation syntax in Phlex templates. Posts aim to be practical: real implementations, real trade-offs, and code you can run yourself rather than abstract theory.

Latest posts

Bringing Emmet to Phlex: Building a Language Server for Ruby View Components

How I built a Rust language server that turns a practical subset of Emmet syntax into Phlex Ruby code.

RubyRustLSPDeveloper Tools

Writing a Lisp Interpreter in Rust - Part 3: Evaluation

Bringing our Lisp to life - evaluating the AST to run programs.

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Writing a Lisp Interpreter in Rust - Part 2: Parsing

How Oxylisp uses recursive descent and delimiter matching to turn a flat token stream into a nested abstract syntax tree.

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Writing a Lisp Interpreter in Rust - Part 1: Lexing

Build Oxylisp's Rust lexer, then examine where delimiter padding, regular expressions, and lossy number handling break down.

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