Lua is a powerful, fast, lightweight, embeddable scripting language.
This Reference Manual is 51 pages long..
Lua is dynamically typed, runs by interpreting bytecode for a register-based virtual machine, and has automatic memory management with incremental garbage collection, making it ideal for configuration, scripting, and rapid prototyping.
Lua combines simple procedural syntax with powerful data description constructs based on associative arrays and extensible semantics.
Lua is a powerful, fast, lightweight, embeddable scripting language