OC-KittenOS/com2/bundiv.lua

74 lines
1.5 KiB
Lua

-- This is released into the public domain. XX
-- No warranty is provided, implied or otherwise. XX
local sector = io.write -- XX
-- BUNDIVIDE reference implementation for integration XX
local Cs,Cbu,Cb,Cw,Cp,Ct,Ci,CP,CB,CD={},128,"",128,"",""
CP = function(d,b)
Ct = Ct .. d
while#Ct>2 do
b = Ct:byte()
Ct = Ct:sub(2)
if b == 127 then
b = Ct:byte()
Ct = Ct:sub(2)
if b == 127 then
b = Ct:byte()+254
if b > 255then
b = b - 256
end
Ct = Ct:sub(2)
else
b = b + 127
end
end
Cp = Cp..string.char(b)
if #Cp == 512 then
sector(Cp)
Cp = ""
end
end
end
for i = 128, 127 + Cbu do
Cs[i] = ("\x00"):rep(512)
end
Cs[Cw] = ""
CB = function (d, i, d2, x, y)
i=1
while i <= #d - 2 do
b=d:byte(i)
d2=d:sub(i,i)
i=i+1
if not Ci then
if b==0then
Ci=1
end
else
if b >= 128 then
x = d:byte(i)
i = i + 1
y=d:byte(i) + ((x % 2) * 256)
i = i + 1
d2=Cs[b]:sub(y + 1,y + 3 + math.floor(x / 2))
end
Cs[Cw]=Cs[Cw]..d2
if #Cs[Cw]>=512 then
CP(Cs[Cw])
Cw=((Cw-127)%Cbu)+128
Cs[Cw]=""
end
end
end
return i
end
CD = function(d)
Cb = Cb .. d
Cb = Cb:sub(CB(Cb))
end
CD(io.read("*a")) -- XX
--D.remove("init-bdivide.lua")--
--D.rename("init.lua","init-bdivide.lua")--
--local Ch=D.open("init-bdivide.lua","rb")--
--dieCB=function()D.close(Ch)D.remove("init-bdivide.lua")end--
--while true do local t=D.read(Ch, 64)if not t then break end CD(t)end--
CD("\x00\x00")CP(Cs[Cw] .. "\x00\x00")