> Lua's are "up-vars" too. This is a fact that's noted in a couple > places (I think there's some discussion in PiL) -- "upvalue" is an > unfortunately inaccurate name kept around for historical reasons. Right. We have also used the term "external local variable" in other places, such as the HOPL paper. PiL uses it too: http://www.lua.org/pil/6.1.html and so does the manual: http://www.lua.org/manual/5.1/manual.html#2.6 http://www.lua.org/manual/5.2/manual.html#3.5