RFC 1345 (rfc1345) - Page 1 of 103

Character Mnemonics and Character Sets

Network Working Group                                        K. Simonsen
Request for Comments: 1345                   Rationel Almen Planlaegning
                                                               June 1992


                  Character Mnemonics & Character Sets

Status of the Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard.  Distribution of this memo is
   unlimited.

Summary

   This memo lists a selection of characters and their presence in some
   coded character sets. To facilitate the coded character set
   tabulations an unambiguous mnemonic for each character is used, and a
   format for tabulating the coded character sets is defined. The coded
   character sets are given names for easy reference. A family of coded
   character sets called the mnemonic character sets and conversion
   between these coded character set without information loss is
   defined.

   The character set names are registered with the Internet Assigned
   Numbers Authority (IANA).  Additional character sets not described in
   this memo should be registered with the IANA. This memo may be
   updated periodically, or additional specifications may be published,
   to reflect other coded character sets.

   Please send any comments including comments about the accuracy of the
   tables to the author, Keld Simonsen [email protected]>.

1.  INTRODUCTION

   With the growing internationalization of the Internet, support for
   many coded character sets is required. It is the intention of this
   memo to document precisely the mapping between all characters and
   their corresponding coded representations in various coded character
   sets, and give names to these coded character sets, so they can be
   referenced unambiguously in Internet standards.

   This memo does not indicate anything about the validity of using
   these specifications in any Internet standard, so you should consult
   each individual Internet standard to see which coded character sets
   and names are allowed there.

   Unambiguous character mnemonics are specified, which provide a
   practical way of identifying a character, without reference to a
   coded character set and its code in this coded character set.  The
   mnemonics are written in a minimal set of characters, namely the
   invariant 83 graphical characters of ISO 646, which is a kind of
   greatest common subset to be found between the majority of coded

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