Expand description
Additional traits for comparisions.
These traits exist because there are several ways of compare domain
names included in composite structures. Normally, names are compared
ignoring ASCII case. This is what PartialEq and PartialOrd do for
domain names. Consequently, when comparing resource records and record
data that contain domain names, ASCII case should also be ignored.
However, the canonical form of most resource type’s record data (apart
from a small set of well-known types) requires names to be considered
as they are for comparisons. In order to make it clear when this mode
of comparision is used, this module defines a new trait CanonicalOrd
that allows types to define how they should be compared in the context of
DNSSEC. The trait is accompanied by compose_canonical methods on all
types that have or may have a canonical form.
Traits
- A trait for the canonical sort order of values.