I friend of mine recently asked me what I thought of Lua. It is, after all, the first language that I chose to integrate with the rewrite of the Crate Game Engine. The language itself, the syntax and structure, I am somewhat indifferent about. However, I am interested in it for other reasons:
Very lenient license restrictions: The site specifies:
Lua is free software: it can be used for any purpose, including commercial purposes, at absolutely no cost. No paperwork, no royalties, no GNU-like “copyleft” restrictions, either.
Tiny interpreter which is easily embedded in another application. From the website (no longer exists):
Under Linux, the Lua interpreter built with all standard Lua libraries takes 144K and the Lua library takes 196K.