Modul:TwitterSnowflake: Unterschied zwischen den Versionen
(convert user-inputted epoch to number) |
(fix weird edge case with 574608900537761792 returning a date of April 11, 2011) |
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| Zeile 17: | Zeile 17: | ||
else hiexp = hiexp + 1 end | else hiexp = hiexp + 1 end | ||
end | end | ||
hi = hi * 10^(hiexp-1) | |||
local timestamp = math.floor((hi * 1024 + math.floor(lo / 4194304)) / 1000) + epoch | local timestamp = math.floor((hi * 1024 + math.floor(lo / 4194304)) / 1000) + epoch | ||
return os.date(format, timestamp) | return os.date(format, timestamp) | ||
Version vom 13. Januar 2021, 06:20 Uhr
Die Dokumentation für dieses Modul kann unter Modul:TwitterSnowflake/doc erstellt werden
local p = {};
p.snowflakeToDate = function (frame)
format = frame.args["format"] or "!%c"
epoch = tonumber(frame.args["epoch"]) or 1288834974
id_str = frame.args["id_str"]
if type(id_str) ~= "string" then error("bad argument #1 (expected string, got " .. type(id_str) .. ")", 2) end
if type(format) ~= "string" then error("bad argument #2 (expected string, got " .. type(format) .. ")", 2) end
if type(epoch) ~= "number" then error("bad argument #3 (expected number, got " .. type(epoch) .. ")", 2) end
local hi, lo = 0, 0
local hiexp = 1
for c in id_str:gmatch "." do
lo = lo * 10 + tostring(c)
if lo >= 2^32 then
hi, lo = hi * 10^hiexp + math.floor(lo / 2^32), lo % 2^32
hiexp = 1
else hiexp = hiexp + 1 end
end
hi = hi * 10^(hiexp-1)
local timestamp = math.floor((hi * 1024 + math.floor(lo / 4194304)) / 1000) + epoch
return os.date(format, timestamp)
end
return p