Lreng – My small programming language written in C
This is my side project for the past few months. I started it because I just learned about functional programming and at the same time want to write something cool in C. Web playground: https://leonw774.github.io/lreng
Lreng – My small programming language written in C launched on February 9, 2025 with 5 votes and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
A simple interpreted programming language. Contribute to leonw774/lreng development by creating an account on GitHub.
Lreng is a simple interpreted programming language. The main idea is to build a minimal language that works on binary tree: it is parsed into a binary AST and has "Pair" as its only container data type. It has strong, dynamic typing and supports first-class citizen anonymous function and closure. gcc and make are required to build the program, and optionally emscripten if you want to build the web playground. ./lreng [-d] {code_file_path} The optional -d flag outputs debug information only when you build with make debug . Variable identifiers should match regex [_A-Za-z][_A-Za-z0-9]* . Variable is global when it is not initialized in a function, otherwise, it is scoped. Everything is…from github.com
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