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CHARMAP(5)                     Linux User Manual                    CHARMAP(5)



NAME
       charmap - character symbols to define character encodings

DESCRIPTION
       A character set description (charmap) defines a character set of available characters and their encodings.  All
       supported character sets should have the portable character set as a proper subset.

   Syntax
       The charmap file starts with a header, that may consist of the following keywords:

       <codeset>
              is followed by the name of the codeset.

       <mb_cur_max>
              is followed by the max number of bytes for a multibyte-character.  Multibyte  characters  are  currently
              not supported.  The default value is 1.

       <mb_cur_min>
              is  followed  by  the  min  number  of  bytes  for  a  character.  This value must be less or equal than
              mb_cur_max.  If not specified, it defaults to mb_cur_max.

       <escape_char>
              is followed by a character that should be used as the escape-character for the rest of the file to  mark
              characters that should be interpreted in a special way.  It defaults to the backslash ( \ ).

       <comment_char>
              is  followed  by  a  character  that will be used as the comment-character for the rest of the file.  It
              defaults to the number sign ( # ).

       The charmap-definition itself starts with the keyword CHARMAP in column 1.

       The following lines may have one of the two following forms to define the character-encodings:

       <symbolic-name> <encoding> <comments>
              This form defines exactly one character and its encoding.

       <symbolic-name>...<symbolic-name> <encoding> <comments>
              This form defines a couple of characters.  This is only useful for multibyte-characters, which are  cur-
              rently not implemented.

       The last line in a charmap-definition file must contain END CHARMAP.

   Symbolic Names
       A  symbolic  name  for  a character contains only characters of the portable character set.  The name itself is
       enclosed between angle brackets.  Characters following an <escape_char> are interpreted as itself; for example,
       the sequence <\\\>> represents the symbolic name \> enclosed in angle brackets.

   Character Encoding
       The encoding may be in each of the following three forms:

       <escape_char>d<number>
              with a decimal number

       <escape_char>x<number>
              with a hexadecimal number

       <escape_char><number>
              with an octal number.

FILES
       /usr/share/i18n/charmaps/*

CONFORMING TO
       POSIX.2.

SEE ALSO
       locale(1), localedef(1), localeconv(3), setlocale(3), locale(5)

COLOPHON
       This  page  is part of release 3.22 of the Linux man-pages project.  A description of the project, and informa-
       tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



                                  1994-11-28                        CHARMAP(5)