This directory contains the source code for S.
fun	All of the functions in S, in separate little directories for
        each command.
graph	The underlying graphics library.
icomp	The interface-language compiler.
lang	Routines that make up the "lang" library -- support for the
	various language features in S.
main	The S executive.
psl	The basic support library for all S algorithms.  Includes the
	common printing routines, storage allocators, numerical algorithms,
	and much more.  Creates the "psl" library.
util	Various utilities for S, such as extract and scandata.
yacc	Our very own version of yacc that knows how to produce
	ratfor output (with m4's help).
