iso2022jp man page on DigitalUNIX

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iso2022jp(5)							  iso2022jp(5)

       iso2022jp,  iso-2022-jp,	 ISO-2022-JP  -	 A  character  encoding system
       (codeset) for Japanese

       The ISO-2022-JP codeset consists of the following character sets: ASCII

	      For information on the ASCII character set, refer	 to  ascii(5).
	      JIS X0201-1976

	      Only  the	 Roman letters in this character set are included. For
	      details, refer to deckanji(5).  JIS X0208-1978 JIS X0208-1983

	      JIS X0208-1983 is	 a  revised  version  of  JIS  X0208-1978  and
	      remapped some characters of JIS X0208-1978 to other positions.

       Before  a  character  is	 used, its corresponding character set must be
       designated. In ISO-2022-JP, the designation of a character set is  done
       by using an escape sequence as follows:

       Escape Sequence	 Character Set
       ESC ( B		 ACSII
       ESC ( J		 JIS X0201-1976 (left-hand part)
       ESC $ @		 JIS X0208-1978
       ESC $ ( 0	 User-defined	characters  (This  range  of
			 characters is proprietary to HP.)
       ESC $ B		 JIS X0208-1983

       It is assumed that the starting code of a line is ASCII	(including  CR
       alone  and  LF alone, but not including the combination CRLF). If there
       are JIS X0208 characters on a line, there must be a switch to ASCII  or
       to  the	left-hand  part of JIS X0201 (Roman letters) before the end of
       the line (in other words, before the CRLF, or carriage return and  line

       For  example,  if a line starts with the ASCII character 9, followed by
       the JIS X0208-1978 character at row 16 column 1, the line is encoded as

       39h ESC $ @ 30h 21h .... ESC ( B .... CRLF

       If  a line starts with the JIS X0208-1978 character at row 16 column 1,
       followed by the ASCII character 9, then the line is encoded as follows:

       ESC $ @ 30h 21h ESC ( B 39h .... CRLF

       Once a character set is designated, there is no need to redesignate the
       character  set  if the adjacent character belongs to the same character
       set. For example, the following practice is not recommended:

       ESC $ B .... ESC $ B ....

       Currently, the operating system supports the ISO 2022-JP	 codeset  only
       through	codeset converters; there is no direct support through locales
       or fonts. For your options in printing and displaying Japanese  charac‐
       ters, refer to i18n_printing(5) and Japanese(5).

   Codeset Conversion
       The  following codeset converter pairs are available for converting Ja‐
       panese characters between ISO-2022-JP and other encoding	 formats.   In
       converter  names,  the  string  ISO-2022-JP indicates that user-defined
       characters  are	not  included  in  the	conversion  while  the	string
       ISO-2022-JPext  indicates  that user-defined characters are included in
       the conversion. Refer to iconv_intro(5) for an introduction to  codeset
       conversion.  For	 more  information  about  the other codeset for which
       ISO-2022-JP or ISO-2022-JPext is the input or output, see the reference
       page  specified	in  the	 list  item.   deckanji_ISO-2022-JP  or	 deck‐
       anji_ISO-2022-JPext, ISO-2022-JP_deckanji or ISO-2022-JPext_deckanji

	      Converting from and  to  the  DEC	 Kanji	codeset:  deckanji(5).
	      eucJP_ISO-2022-JP	 or eucJP_ISO-2022-JPext, ISO-2022-JP_eucJP or

	      Converting from and to Japanese Extended	UNIX  Code:  eucJP(5).
	      sdeckanji_ISO-2022-JP	   or	     sdeckanji_ISO-2022-JPext,
	      ISO-2022-JP_sdeckanji or ISO-2022-JPext_sdeckanji

	      Converting from and to  the  Super  DEC  Kanji  codeset:	sdeck‐
	      anji(5).	     SJIS_ISO-2022-JP	   or	  SJIS_ISO-2022-JPext,
	      ISO-2022-JP_SJIS or ISO-2022-JPext_SJIS

	      Converting from and to the Shift JIS codeset: SJIS(5).

	      Note that SJIS encoding is equivalent to the Microsoft code-page
	      format used on PC systems. Therefore, you can use these convert‐
	      ers to convert Japanese characters between the ISO  2022-JP  and
	      PC  code-page  formats.  See code_page(5) for information on how
	      the operating system supports PC code pages.   UTF-8_ISO-2022-JP
	      or	UTF-8_ISO-2022-JPext,	    ISO-2022-JP_UTF-8	    or

	      Converting from and to the UTF-8 codeset: Unicode(5).

       Commands: locale(1)

       Others: ascii(5), code_page(5), deckanji(5),  eucJP(5),	i18n_intro(5),
       i18n_printing(5), iconv_intro(5), iso2022(5), Japanese(5), jiskanji(5),
       l10n_intro(5), sdeckanji(5), shiftjis(5)


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