some cleaning up

modules/drivers/vt52.lua

@@ -53,7 +53,7 @@ function tty(gA,sA,sI,fg,bg)
     elseif c == "\r" then cx=1
     elseif c == "\f" then cx=1 cy=1 gP.fill(1, 1, sx, sy, " ")
     elseif c == "\t" then cx=(cx+8-((cx+8)%8))+1
-    elseif c == "\127" then cx=cx-1 gP.set(cx,cy,"  ")
+    elseif c == "\127" then cx=cx-1 gP.set(cx,cy,(" "):rep(2))
     else gP.set(cx,cy,c) cx=cx+1
    end
    end cv()

modules/lib/buffer.lua

@@ -1,35 +1,4 @@
 _G.buffer = {}
---[[function buffer.create(w,c) -- worker, close
- local t={}
- t.b=""
- function t.w(s,d)
-  s.b=s.b..tostring(d)
- end
- t.write = t.w
- function t.r(s,l)
-  if type(l) == "number" then
-   local ns,bs=s.b:sub(1,l+1),s.b:sub(l+2)
-   s.b=bs
-   return ns
-  elseif type(l) == "string" then
-   local oS=s.b
-   if l == "*a" then
-    s.b=""
-    return oS
-   elseif l == "*l" then
-    S=s.b:find("\n") or #s.b
-    s.b=s.b:sub(S+1)
-    rS = oS:sub(1,S-1)
-    if rS:len() < 1 then return nil end
-    return rS
-   end
-  end
- end
- t.read = t.r
- t.close = c
- w(t)
- return t
-end]]--
 function buffer.ucreate()
  local b = {}
  b.b,b.s = "","open"

strip.lua

@@ -31,7 +31,7 @@ for k,v in ipairs(replacements) do
   no=no+1
  end
 end
-print("\nBefore: "..sl.."\nAfter: "..tostring(ss:len()).."\n"..tostring(no).." optimisations made.\n")
+print("\nBefore: "..sl.."\nAfter: "..tostring(ss:len()).."\nDelta: "..tostring(sl-ss:len()))
 
 f=io.open(tA[2],"wb")
 f:write(ss)