Module:Guid

Documentation for this module may be created at Module:Guid/doc

local p = {}

function p.seed()
  math.randomseed( tonumber( tostring( os.time() ):reverse():sub( 1, 6 ) ) )
end

function p.new()
  local template ='xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'
  local g = string.gsub( template, '[xy]', function ( c )
    local v = ( c == 'x' ) and math.random( 0, 0xf ) or math.random( 8, 0xb )
    return string.format( '%x', v )
  end)
  return g
end

return p