Warning: this is an htmlized version!
The original is across this link,
and the conversion rules are here.
Lua 5.1.5  Copyright (C) 1994-2012 Lua.org, PUC-Rio
> dofile "newrect.lua"
> PP(copyopts("8pt", {}))
 {"cellfont"="\\scriptsize", "celllower"="2pt", "scale"="8pt"}
> PP(copyopts({hello=1, meta="8pt"}, {}))
 {"cellfont"="\\scriptsize", "celllower"="2pt", "hello"=1, "scale"="8pt"}
> 
>