Modul:TwitterSnowflake: Unterschied zwischen den Versionen
Keine Bearbeitungszusammenfassung |
(convert user-inputted epoch to number) |
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Zeile 3: | Zeile 3: | ||
p.snowflakeToDate = function (frame) | p.snowflakeToDate = function (frame) | ||
format = frame.args["format"] or "!%c" | format = frame.args["format"] or "!%c" | ||
epoch = frame.args["epoch"] or 1288834974 | epoch = tonumber(frame.args["epoch"]) or 1288834974 | ||
id_str = frame.args["id_str"] | 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(id_str) ~= "string" then error("bad argument #1 (expected string, got " .. type(id_str) .. ")", 2) end |
Version vom 9. Januar 2021, 21:43 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 local timestamp = math.floor((hi * 1024 + math.floor(lo / 4194304)) / 1000) + epoch return os.date(format, timestamp) end return p