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sporkmonger/gist:31013

Created December 2, 2008 05:28
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This is NOT how to generate valid UUIDs.
Raw
gistfile1.rb
def rand_hex_3(l)
"%0#{l}x" % rand(1 << l*4)
end
def rand_uuid
[8,4,4,4,12].map {|n| rand_hex_3(n)}.join('-')
end
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