class SafeYAML::Transform::ToSymbol

def transform?(value, options=SafeYAML::OPTIONS)
  if options[:deserialize_symbols] && value =~ /\A:./
    if value =~ /\A:(["'])(.*)\1\Z/
      return true, $2.sub(/^:/, "").to_sym
    else
      return true, value.sub(/^:/, "").to_sym
    end
  end
  return false
end