Fwd: Registration of new charset KOI7-switched

[Paul Hoffman / IMC <phoffman@imc.org>]

IANA: Please insert the enclosed registration into the charset registry.

--Paul Hoffman, acting as charset reviewer

>Date: Sun, 30 Mar 2003 18:37:23 -0800 (PST)
>From: msokolov@ivan.Harhan.ORG (Michael Sokolov)
>Subject: Registration of new charset KOI7-switched
>To: ietf-charsets@iana.org
>Spam-test: False ; 1.9 / 4.5
>
>Charset name: KOI7-switched
>
>Charset aliases: None
>
>Suitability for use in MIME text: Yes
>
>Published specifications:
>
>The charset is a 7-bit Character Encoding Scheme (CES) as follows. Each octet
>MUST have value between 0 and 177 octal, inclusive. Octets with values 0
>through 15 octal (inclusive) and 20 through 177 octal (inclusive) are to be
>interpreted per one of two Coded Character Sets (CCS's): ISO_646.irv:1983 and
>ISO_5427. The CCS to use is determined by the switch state. Octet 
>with value 16
>octal selects ISO_5427 and octet with value 17 octal selects ISO_646.irv:1983.
>The initial CCS is ISO_646.irv:1983.
>
>HISTORICAL NOTE: This charset was used in Soviet computer systems as a
>replacement for ASCII. It was intended to do for Soviet computer systems what
>ASCII does for American ones. The only additional feature required by the
>former is encoding of Russian letters. To achieve the above goal Soviet
>standards defined several 7-bit charsets, all of which were called KOI-7.
>KOI-7 N0 was the Soviet name for ISO 646 IRV, which is the same as US-ASCII
>except for rendering 44 octal as the international currency symbol instead of
>the dollar sign, and KOI-7 N1 (registered as ISO_5427) had English letters and
>some special characters replaced with Russian letters. The two KOI-7 
>CCS's were
>commonly used with the CES described above to achieve functionality which is a
>superset of ASCII and Russian.
>
>An ISO 2022 compliant terminal can be prepared for displaying KOI7-switched
>text with the following sequence:
>
>ESC ( @ ESC ) N LS0
>
>Additional information:
>
>Person & email address to contact for further information:
>
>Michael Sokolov
>International Free Computing Task Force (IFCTF)
>msokolov@ivan.Harhan.ORG
>
>Intended usage: LIMITED USE
>
>This charset is not as convenient as the several 8-bit CCS's available for
>Latin/Cyrillic encoding, however, when a 7-bit communication channel must be
>used using this charset is much more efficient than using an 8-bit CCS such as
>ISO_8859-5 or KOI-8 and then encoding it with a scheme such as uuencode, MIME
>base64, or MIME quoted-printable.