Megatest

		(if (null? tala) ;; we are done
		    talb
		    (loop (car tala)
			  (cdr tala)
			  (car talb)
			  (cdr talb)))
		#f)))))

;; Needed for long lists to be sorted where (apply max ... ) dies
;;
(define (common:max inlst)
  (let loop ((max-val (car inlst))
	     (hed     (car inlst))
	     (tal     (cdr inlst)))
    (if (null? tal)
	(loop (max hed max-val)
	      (car tal)
	      (cdr tal))
	(max hed max-val))))


;;======================================================================
;; Munge data into nice forms
;;======================================================================

;; Generate an index for a sparse list of key values
;;   ( (rowname1 colname1 val1)(rowname2 colname2 val2) )