nullLink :: URI -- ^linkHref
         -> Link
nullLink uri = Link
  { linkHref      = uri
  , linkRel       = Nothing
  , linkType      = Nothing
  , linkHrefLang  = Nothing
  , linkTitle     = Nothing
  , linkLength    = Nothing
  , linkAttrs     = []
  , linkOther     = []
  }
nullLink :: URI -- ^linkHref
         -> Link
nullLink uri = Link
  { linkHref      = uri
  , linkRel       = Nothing
  , linkType      = Nothing
  , linkHrefLang  = Nothing
  , linkTitle     = Nothing
  , linkLength    = Nothing
  , linkAttrs     = []
  , linkOther     = []
  }
nullLink uri = Link
  { linkHref      = uri
  , linkRel       = Nothing
  , linkType      = Nothing
  , linkHrefLang  = Nothing
  , linkTitle     = Nothing
  , linkLength    = Nothing
  , linkAttrs     = []
  , linkOther     = []
  }