50-100 lines? How horrifying. function mklist(v, ...) if v==nil then return nil end return {value=v, next=mklist(...)} end function listeq(a,b)

50-100 lines? How horrifying. function mklist(v, ...) if v==nil then return nil end return {value=v, next=mklist(...)} end function listeq(a,b) if a==nil or b==nil then return a==b end if a.value==b.value then return listeq(a.next, b.next) end return false end function revlist(list, sofar) if list == nil then return sofar end local next = list.next list.next = sofar return revlist(next, list) end function test() assert(mklist(1,2,3).next.next.value==3) assert(mklist(1,2,3).next.next.next==nil) assert(listeq(mklist(1,2,3),mklist(1,2,3))) assert(not listeq(mklist(1,2,3),mklist(1,2,5))) assert(not listeq(mklist(1,2,3),mklist(1,2))) assert(listeq(mklist(1,2,3), revlist(mklist(3,2,1)))) assert(not listeq(mklist(1,2,3), revlist(mklist(1,2,3)))) end