1 -- reads luac listings and reports global variable usage
2 -- lines where a global is written to are marked with "*"
3 -- typical usage: luac -p -l file.lua | lua globals.lua | sort | lua table.lua
7 if s==nil then break end
8 local ok,_,l,op,g=string.find(s,"%[%-?(%d*)%]%s*([GS])ETGLOBAL.-;%s+(.*)$")
10 if op=="S" then op="*" else op="" end
11 io.write(g,"\t",l,op,"\n")