i18nlevel

type Backend interface {
	// I18NLevel returns the internationalization level supported by backend.
	//
	// See RFC 5255 4.2, 4.3 and 4.6 sections for requirements of each level.
	//
	// If this method returns 1, the User objects do not have to implement the
	// User interface.
	I18NLevel() int
}

type Client struct {
	// contains filtered or unexported fields
}

type ComparatorCmd struct {
	Comparators []string
}

type ComparatorHandler struct {
	ComparatorCmd
}

type Comparators struct {
	Active  string
	Matched []string
}

type User interface {
	// UseComparator changes active comparator for the session.
	//
	// cmps is a non-empty list of comparators client wishes to use in the
	// preference order. The backend selects the first supported comparator and
	// changes the active session comparator to it. The return value contains
	// the identifier of selected comparator. And a list of  comparators which
	// matches any of the arguments to the COMPARATOR command and is present
	// only if more than one match is found.
	//
	// Special value "default" refers to the comparator that is used when no
	// UseComparator is called. Note that with I18NLevel() == 2, the default
	// comparator SHOULD be "i;unicode-casemap".
	UseComparator(cmps []string) (string, []string, error)

	// ActiveComparator returns the currently active comparator for the
	// session.
	ActiveComparator() string
}