Lua

What is /prog/'s opinion on Lua?

Well, I don't know it, but I heard it's used in many remarkable programs. By example Awesome.

DEJA VU

its fas but it isnt listp

>>3
MOAR LIEK DEJA VUA, AMIRITE?

JavaScript is the future.

Has anybody used it in anything substantial? Any gotchas coming from other languages? Any notable quirks or missing features compared to other scripting languages? Does its embedding API influence the design of the host project in any way?

>>1
Good language for embedding in to C/C++.

The only purpose of Lua is to substitute Sepples in certain places and thus make life of Crusis DEVELOPERS a bit easier.

>>7
Has anybody used it in anything substantial?
Started a project using it, but dropped it after a few months.

Any gotchas coming from other languages?
Undeclared variables are treated as globals instead of errors.  This can be changed using metatables though.

Any notable quirks or missing features compared to other scripting languages?
Dictionaries/arrays are one type (tables).  Arrays are 1-based (before anyone complains, yes you can use 0 but some built in functions assume 1).

Does its embedding API influence the design of the host project in any way?
Not that I can think of.  An interpreter instance is single threaded but are there scripting without this limitation?

It's used often in games for a reason; fastest un-JIT'd scripting language around, light (no API other than C standard), and has the nice scripting features necessary for easily handling events (first-class functions and closures).