CCITT T.51 (ISO2022?) and multiple-byte codes designated to GR/GL?

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#1061

From: Markku Savela
Date: Mon, 28 Jan 1991 13:12

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  Have I understood the standard right? Assuming the following in
8-bit environment:

   1) I have designated single byte code set (like normal "ASCII")
      into G0 and invoked it into GL with LS0.
   2) I have designated multi-byte code set (like JISC 6226 (kanji))
      into G1 and invoked it into GR with LS1R. 

  With this setup ASCII and Kanji can be mixed without any additional
escape sequences? Every single code that does not have the 8th bit
set will be normal ascii, and each consecutive pair of bytes that
have 8th bit set will be single kanji character.

  What is the correct procedure to handle error cases, like when
there is only one byte with 8th bit set? Do I blindly take the
next byte regardless of the 8th bit setting or ignore this single
byte?
--
Markku Savela (savela@tel.vtt.fi), Technical Research Centre of Finland
Telecommunications Laboratory, Otakaari 7 B, SF-02150 ESPOO, Finland

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!samsung!uakari.primate.wisc.edu!hemuli.tik.vtt.fi!Markku.Savela
From: Markku.Savela@tel.vtt.fi (Markku Savela)
Newsgroups: comp.protocols.iso
Subject: CCITT T.51 (ISO2022?) and multiple-byte codes designated to GR/GL?
Message-ID: <5356@hemuli.tik.vtt.fi>
Date: 28 Jan 91 13:12:59 GMT
Sender: news@hemuli.tik.vtt.fi
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Organization: Technical Research Centre of Finland
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