Re: s48_extract_string?

Another question:

On page 14 of the v1.8 manual, it says:

"For example, use

,exec ,load filename

to load a file containing commands"

I have a little file, test.scm, that contains commands, but when I
attempt the above, I get

Welcome to Scheme 48 1.8 (made by root on Sat Jan 31 20:53:50 EST 2009)
Copyright (c) 1993-2008 by Richard Kelsey and Jonathan Rees.
Please report bugs to [email protected].
Get more information at http://www.s48.org/.
Type ,? (comma question-mark) for help.
> ,exec ,load "test.scm"

Error: undefined variable
       unquote
       (package exec)
1 exec>

Looks like there is confusion between the command processor ","
construct and quasiquote?

/Don