# File lib/vcard.rb, line 221
  def self.encode_paramvalue(value)
    if value =~ Bnf::ALL_SAFECHARS
      value
    elsif value =~ Bnf::ALL_QSAFECHARS
      %Q{"#{value}"}
    else
      raise ::Vcard::Unencodable, "param-value #{value.inspect}"
    end
  end