60 lines
1.2 KiB
Lua
60 lines
1.2 KiB
Lua
local tArgs = {...}
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local input = tArgs[1]
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local output = tArgs[2]
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local tKeywords = {"%[%[","]]","function","local","return","end","elseif","then","true","false"}
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local tAvoid = {}
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local tCodes = {}
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local tReplace = {}
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tAvoid[10] = true
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tAvoid[27] = true
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for i = 1, 31 do
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if not tAvoid[i] then
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tCodes[#tCodes+1] = i
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end
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end
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for k,v in pairs(tKeywords) do
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local newchar = table.remove(tCodes,1)
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tReplace[#tReplace+1] = {v,string.char(newchar)}
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end
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local f = io.open(input,"rb")
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if not f then return false end
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local c = f:read("*a")
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f:close()
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local origSize = c:len()
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for k,v in pairs(tReplace) do
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v[3] = c:find(v[1])
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c=c:gsub(v[1],v[2])
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end
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local mSize = c:len()
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c="c=[["..c.."]]for k,v in pairs({"
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for k,v in pairs(tReplace) do
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if v[3] then
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c=c.."{'"..v[2].."','"..v[1].."'}"
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if k < #tReplace then
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c=c..","
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end
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end
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end
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c=c.."})do c=c:gsub(v[1],v[2])end load(c)()"
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--c=c.."})do c=c:gsub(v[1],v[2])end print(c)"
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local fullSize = c:len()
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if output then
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f=io.open(output,"wb")
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f:write(c)
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f:close()
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end
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io.write("Original size: ")
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print(origSize)
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io.write("Minified size: ")
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io.write(mSize)
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io.write("; delta: ")
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print(origSize - mSize)
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io.write("RtR size: ")
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io.write(fullSize)
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io.write("; delta: ")
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print(origSize - fullSize)
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