http://www.w3.org/2001/XMLSchema
simpleType language

{http://www.w3.org/2001/XMLSchema}anySimpleType
  {http://www.w3.org/2001/XMLSchema}string
      {http://www.w3.org/2001/XMLSchema}normalizedString
          {http://www.w3.org/2001/XMLSchema}token
              {http://www.w3.org/2001/XMLSchema}language

Model

{token: pattern = ([a-zA-Z]{1,8})(-[a-zA-Z0-9]{1,8})*}

Fundamental Facets

equality, non-numeric, unbounded, unordered, countable infinite value space

White Space Processing

collapse

Pattern Facet

([a-zA-Z]{1,8})(-[a-zA-Z0-9]{1,8})*