 this module implements anchor . local getargs require 'module arguments .getargs local tabletools require 'module tabletools local pu800 function pu800u82emain frame getu800 theu800 positional arguments from #invoke remove anyu800 nilu800 values andu800 pass them tou800 pu800u82e_main. local args getargs frame local argarray tabletoolsu82ecompresssparsearray args return pu800u82e_main unpack argarray endu800 function pu800u82e_main ... generate theu800 list ofu800 anchors. local anchors ... local retu800 foru800 _u800 anchor inu800 ipairs anchors dou800 retu800 #retu800 1u800 ' ' endu800 return tableu82econcat retu800 endu800 return pu800 