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MAPSCRN(8) International Support MAPSCRN(8)


mapscrn – load screen output mapping table


mapscrn [-v] [-o map.orig] mapfile


The mapscrn command is obsolete – its function is now built-in into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 (K for the G0 character
set and )K for the G1 character set. When the -o option is given,
the old map is saved in map.orig.

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

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. FILES /usr/share/consoletrans is the default directory for screen mappings.




Copyright (C) 1993 Eugene G. Crosser

This software and documentation may be distributed freely.

Local 20 March 1993 MAPSCRN(8)

Ils en parlent aussi

setfont Man page – Tochirobot