[plt-scheme] Including standard functionality

G. Saini wrote:
> For the life of me, I cannot get plt scheme to recognize a handful of
> "standard functions" that are supposed to come with Scheme.

The functions in question are not standard.  For the basic definition of
standard Scheme, see R5RS:
http://www.schemers.org/Documents/Standards/R5RS/

Also, some SRFIs ought to be considered part of the standard Scheme library,
particularly SRFI-1:
http://srfi.schemers.org/final-srfis.html

> Currently I am trying to use the stream special forms
> (stream-car, stream-cdr, cons-stream).

There are some definitions of these functions here:
http://list.cs.brown.edu/pipermail/plt-scheme/2003-March/001945.html

Also, the draft SRFI-40 defines a more comprehensive stream library, and
gives a portable reference implementation:
http://srfi.schemers.org/srfi-40/srfi-40.txt

> In the past it has been NIL and trace

Neither of these are standard Scheme, either.

Anton