Keld has suggested more or less the following wording for the defintion
of "character set" -- please comment if you object:
The term "character set", wherever it is used in this document, refers
to the ISO definition of the term "coded character set": "a set of
unambiguous rules that establishes a character set and the one-to-one
relationship between the characters of the set and their coded
representation." This definition may be subject to different
interpretations. This memo does not put further restrictions on the
term of "coded character set" than the following: "A coded character set
is a set of rules that unambiguously and completely determines which
sequence of characters, if any, is represented by each possible sequence
of n-bit bytes for a certain value of n." This implies that e.g. a coded
character set extended with one or more other coded character sets by
means of the extension techniques of ISO 2022 constitutes a coded
character set in its own right. In this memo the term "charset" is used
to refer to the above interpretation of the ISO term "coded character
set"