in reply to Re^3: COVID-19 data analytics, cryptography, and some things you should know
in thread COVID-19 data analytics, cryptography, and some things you should know
... and throws if it is not "valid."
... and may accept what is not valid, e.g., '9999.9999.9999.9999' :)
Give a man a fish: <%-{-{-{-<
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