MAPSCRN(8)		    System Manager's Manual		    MAPSCRN(8)

NAME
       mapscrn - load screen output mapping table

SYNOPSIS
       mapscrn [options] mapfile

DESCRIPTION
       The mapscrn command is obsolete - its function is now built-in into
       setfont.	 However, for backwards compatibility it is still available as
       a separate command.

       The mapscrn command loads a user defined output character mapping table
       into the console driver. The console driver may be later put into use
       user-defined mapping table mode by outputting a special escape sequence
       to the console device.  This sequence is <esc>(K for the G0 character
       set and <esc>)K for the G1 character set.  When the -o option is given,
       the old map is saved in map.orig.

USE
       There are two kinds of mapping tables: direct-to-font tables, that give
       a font position for each user byte value, and user-to-unicode tables
       that give a unicode value for each user byte. The corresponding glyph
       is now found using the unicode index of the font.  The command
	      mapscrn trivial
       sets up a one-to-one direct-to-font table where user bytes directly
       address the font. This is useful for fonts that are in the same order
       as the character set one uses.  A command like
	      mapscrn 8859-2
       sets up a user-to-unicode table that assumes that the user uses ISO
       8859-2.

INPUT FORMAT
       The mapscrn command can read the map in either of two formats:
       1. 256 or 512 bytes binary data
       2. two-column text file
       Format (1) is a direct image of the translation table. The 256-bytes
       tables are direct-to-font, the 512-bytes tables are user-to-unicode
       tables.	Format (2) is used to fill the table as follows: cell with
       offset mentioned in the first column is filled with the value mentioned
       in the second column.  When values larger than 255 occur, or values are
       written using the U+xxxx notation, the table is assumed to be a user-
       to-unicode table, otherwise it is a direct-to-font table.

       Values in the file may be specified in one of several formats:
       1. Decimal: String of decimal digits not starting with '0'
       2. Octal: String of octal digits beginning with '0'.
       3. Hexadecimal: String of hexadecimal digits preceded by "0x".
       4. Unicode: String of four hexadecimal digits preceded by "U+".
       5. Character: Single character enclosed in single quotes. (And the
       binary value is used.)  Note that blank, comma, tab character and '#'
       cannot be specified with this format.
       6. UTF-8 Character: Single (possibly multi-byte) UTF-8 character,
       enclosed in single quotes.

       Note that control characters (with codes < 32) cannot be re-mapped with
       mapscrn because they have special meaning for the driver.

OPTIONS
       -o, --output=FILE
	      save the old map to the FILE.

       -C, --console=DEV
	      the console device to be used.

       -v, --verbose
	      be more verbose.

       -V, --version
	      print version number.

       -h, --help
	      print this usage message.

FILES
       /usr/share/kbd/consoletrans
	      The default directory for screen mappings.

SEE ALSO
       setfont(8)

AUTHOR
       Copyright (C) 1993 Eugene G. Crosser
       <crosser@pccross.msk.su>
       This software and documentation may be distributed freely.

kbd				24 October 2024			    MAPSCRN(8)