pbmlife – apply Conway’s rules of Life to a portable bitmap
Reads a portable bitmap as input. Applies the rules of Life to it for
one generation, and produces a portable bitmap as output.
A white pixel in the image is interpreted as a live beastie, and a
black pixel as an empty space.
Copyright (C) 1988, 1991 by Jef Poskanzer.
21 February 1991 pbmlife