func isIgnorable(m *Matcher, e colltab.Elem) bool {
if e.Primary() > 0 {
return false
}
if e.Secondary() > 0 {
if !m.ignoreDiacritics {
return false
}
// Primary value is 0 and ignoreDiacritics is true. In this case we
// ignore the tertiary element, as it only pertains to the modifier.
return true
}
// TODO: further distinguish once we have the new implementation.
if !(m.ignoreWidth || m.ignoreCase) && e.Tertiary() > 0 {
return false
}
// TODO: we ignore the Quaternary level for now.
return true
}
// TODO: remove this function once Elem is internal and Tertiary returns int.
func tertiary(e colltab.Elem) int {
return int(e.Tertiary())
}