Method Standards.IDNA.nameprep()

Method nameprep: string nameprep(string s, int(0..1)|void allow_unassigned)
Description: Prepare a Unicode string for ACE transcoding. Used by to_ascii . Nameprep is a profile of Stringprep, which is described in RFC 3454.
Parameter s: The string to prep.
Parameter allow_unassigned: Set this flag the the string to transform is a "query string", and not a "stored string". See RFC 3454.