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
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).