Provided by: sam_4.3-18.2_i386 bug


       font, subfont - external format for fonts and subfonts


       #include <libc.h>
       #include <libg.h>


       Fonts and subfonts are described in cachechars(3g).

       External  fonts  are  described  by  a plain text file that can be read
       using rdfontfile.  The format of the file is a header followed  by  any
       number  of  subfont  range  specifications.   The  header  contains two
       numbers: the height and the  ascent.   The  height  is  the  inter-line
       spacing  and the ascent is the distance from the top of the line to the
       baseline.  These numbers are chosen to  display  consistently  all  the
       subfonts  of  the  font.   A  subfont  range specification contains two
       numbers and a font name.   The  numbers  are  the  inclusive  range  of
       characters  covered by the subfont, and name specifies the name of an X
       font suitable for getsubfont.  The minimum number of a covered range is
       mapped  to  the  first  defined character of the corresponding subfont.
       Each field must be followed by some white space.   Each  numeric  field
       may be C-format decimal, octal, or hexadecimal.

       Subfonts may be loaded using getsubfont, see graphics(3g).


       Some  X  font names contain spaces which will terminate the field.  For
       some fonts this can be worked  around  by  replacing  the  spaces  with
       characters  in  an  attempt  to  fool  the X font name pattern matching


       graphics(3g), bitblt(3g), cachechars(3g).