Provided by: sam_4.3-18.2_i386
font, subfont - external format for fonts and subfonts
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 num‐
bers: 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 base‐
line. These numbers are chosen to display consistently all the sub‐
fonts 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 suit‐
able 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 char‐
acters in an attempt to fool the X font name pattern matching mecha‐
graphics(3g), bitblt(3g), cachechars(3g).