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mapscrn



SYNOPSIS

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


DESCRIPTION

       The  mapscrn  command  is  obsolete  - its function is now
       built-in into setfont.  However, for backwards compatibil­
       ity 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 for­
       mats:
       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 val­
       ues 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 for­
       mats:
       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".
       /usr/share/kbd/consoletrans is 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.

Local                     20 March 1993                MAPSCRN(8)
  
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