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34 lines
924 B
Lua
34 lines
924 B
Lua
local format = function(str)
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if type(str) ~= "string" then
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return nil
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end
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local result = "Binary string length; " .. tostring(#str) .. " bytes\n"
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local i = 1
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local hex = ""
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local chr = ""
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while i <= #str do
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local byte = str:byte(i)
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hex = string.format("%s%2x ", hex, byte)
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if byte < 32 then
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byte = string.byte(".")
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end
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chr = chr .. string.char(byte)
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if math.floor(i / 16) == i / 16 or i == #str then
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-- reached end of line
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hex = hex .. string.rep(" ", 16 * 3 - #hex)
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chr = chr .. string.rep(" ", 16 - #chr)
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result = result .. hex:sub(1, 8 * 3) .. " " .. hex:sub(8 * 3 + 1, -1) .. " " .. chr:sub(1, 8) .. " " ..
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chr:sub(9, -1) .. "\n"
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hex = ""
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chr = ""
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end
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i = i + 1
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end
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return result
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end
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return format
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