16:39:20pjbI don't remember it in scheme. It's called copy-sequence in emacs lisp. (if you don't require 'cl)
16:40:44pjbnothing in r5rs ressembling copy-seq: https://groups.csail.mit.edu/mac/ftpdir/scheme-reports/r5rs-html/r5rs_14.html#SEC88 there's only string-copy.
16:41:24pjbHave a look at (intersection common-lisp emacs-lisp scheme) http://www.informatimago.com/develop/lisp/com/informatimago/small-cl-pgms/intersection-r5rs-common-lisp-emacs-lisp/