rename justify property to align

This commit is contained in:
kepler155c@gmail.com
2019-02-27 17:15:44 -05:00
parent 5af2bb1e91
commit 177533b760
11 changed files with 78 additions and 55 deletions

View File

@@ -2,41 +2,49 @@
-- By KillaVanilla
-- see: http://www.computercraft.info/forums2/index.php?/topic/12450-killavanillas-various-apis/
Base64 = { }
local Base64 = { }
local bit = _G.bit
local _brshift = bit.brshift
local _bor = bit.bor
local _blshift = bit.blshift
local _band = bit.band
local _sub = string.sub
local os = _G.os
local alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
local function sixBitToBase64(input)
return string.sub(alphabet, input+1, input+1)
return _sub(alphabet, input+1, input+1)
end
local function base64ToSixBit(input)
for i=1, 64 do
if input == string.sub(alphabet, i, i) then
if input == _sub(alphabet, i, i) then
return i-1
end
end
end
local function octetToBase64(o1, o2, o3)
local i1 = sixBitToBase64(bit.brshift(bit.band(o1, 0xFC), 2))
local i2 = "A"
local i1 = sixBitToBase64(_brshift(_band(o1, 0xFC), 2))
local i2
local i3 = "="
local i4 = "="
if o2 then
i2 = sixBitToBase64(bit.bor( bit.blshift(bit.band(o1, 3), 4), bit.brshift(bit.band(o2, 0xF0), 4) ))
i2 = sixBitToBase64(_bor( _blshift(_band(o1, 3), 4), _brshift(_band(o2, 0xF0), 4) ))
if not o3 then
i3 = sixBitToBase64(bit.blshift(bit.band(o2, 0x0F), 2))
i3 = sixBitToBase64(_blshift(_band(o2, 0x0F), 2))
else
i3 = sixBitToBase64(bit.bor( bit.blshift(bit.band(o2, 0x0F), 2), bit.brshift(bit.band(o3, 0xC0), 6) ))
i3 = sixBitToBase64(_bor( _blshift(_band(o2, 0x0F), 2), _brshift(_band(o3, 0xC0), 6) ))
end
else
i2 = sixBitToBase64(bit.blshift(bit.band(o1, 3), 4))
i2 = sixBitToBase64(_blshift(_band(o1, 3), 4))
end
if o3 then
i4 = sixBitToBase64(bit.band(o3, 0x3F))
i4 = sixBitToBase64(_band(o3, 0x3F))
end
return i1..i2..i3..i4
end
@@ -45,31 +53,31 @@ end
-- octet 3 needs characters 3/4
local function base64ToThreeOctet(s1)
local c1 = base64ToSixBit(string.sub(s1, 1, 1))
local c2 = base64ToSixBit(string.sub(s1, 2, 2))
local c3 = 0
local c4 = 0
local o1 = 0
local o2 = 0
local o3 = 0
if string.sub(s1, 3, 3) == "=" then
local c1 = base64ToSixBit(_sub(s1, 1, 1))
local c2 = base64ToSixBit(_sub(s1, 2, 2))
local c3
local c4
local o1
local o2
local o3
if _sub(s1, 3, 3) == "=" then
c3 = nil
c4 = nil
elseif string.sub(s1, 4, 4) == "=" then
c3 = base64ToSixBit(string.sub(s1, 3, 3))
elseif _sub(s1, 4, 4) == "=" then
c3 = base64ToSixBit(_sub(s1, 3, 3))
c4 = nil
else
c3 = base64ToSixBit(string.sub(s1, 3, 3))
c4 = base64ToSixBit(string.sub(s1, 4, 4))
c3 = base64ToSixBit(_sub(s1, 3, 3))
c4 = base64ToSixBit(_sub(s1, 4, 4))
end
o1 = bit.bor( bit.blshift(c1, 2), bit.brshift(bit.band( c2, 0x30 ), 4) )
o1 = _bor( _blshift(c1, 2), _brshift(_band( c2, 0x30 ), 4) )
if c3 then
o2 = bit.bor( bit.blshift(bit.band(c2, 0x0F), 4), bit.brshift(bit.band( c3, 0x3C ), 2) )
o2 = _bor( _blshift(_band(c2, 0x0F), 4), _brshift(_band( c3, 0x3C ), 2) )
else
o2 = nil
end
if c4 then
o3 = bit.bor( bit.blshift(bit.band(c3, 3), 6), c4 )
o3 = _bor( _blshift(_band(c3, 3), 6), c4 )
else
o3 = nil
end
@@ -102,12 +110,25 @@ function Base64.encode(bytes)
return output
end
local function Throttle()
local ts = os.clock()
local timeout = .095
return function()
local nts = os.clock()
if nts > ts + timeout then
os.sleep(0)
ts = os.clock()
end
end
end
function Base64.decode(str)
local bytes = {}
local blocks = {}
local blockNum = 1
local throttle = Throttle()
for i=1, #str, 4 do
blocks[blockNum] = string.sub(str, i, i+3)
blocks[blockNum] = _sub(str, i, i+3)
blockNum = blockNum+1
end
for i=1, #blocks do
@@ -115,9 +136,7 @@ function Base64.decode(str)
table.insert(bytes, o1)
table.insert(bytes, o2)
table.insert(bytes, o3)
if (i % 1000) == 0 then
os.sleep(0)
end
throttle()
end
-- Remove padding:
--[[