A repertoire is a type specifier for a subtype of type
character. This term is generally used when describing a
collection of characters independent of their coding. Characters
in repertoires are only identified by name, by glyph, or by
character description. A repertoire can contain characters from
several scripts, and a character can appear in more than one
repertoire. For some examples of repertoires, see the coded
character standards ISO 8859/1, ISO 8859/2, and ISO 6937/2.
Note, however, that although the term ``repertoire'' is chosen
for definitional compatibility with ISO terminology, no
conforming implementation is required to use repertoires
standardized by ISO or any other standards organization.