LPeg

vismartanne/vis

A vi-like text editor that combines modal editing with Plan 9's structural regular expressions for powerful text manipulation.

lua-httpdaurnimator/lua-http

A comprehensive HTTP library for Lua supporting HTTP(S) 1.0, 1.1, and 2.0 for both client and server applications.

Typed Luaandremm/typedlua

An optional type system for Lua that adds compile-time type checking and class-based OOP.

lua-pbNeopallium/lua-pb

A Lua library for dynamic loading and processing of Protocol Buffers message definition files (.proto).

luajsonharningt/luajson

A fast and flexible JSON parser and encoder for Lua, built with LPeg for high performance and configurable parsing.