(declare (unit util-bst-bdict))

(import duck)

(module*
 util-bst-bdict
 #:doc ("Reimplementation of old number-only BST dictionary.")
 (
  list->bdict
  bdict-find-value
  bdict-ref
  bdict-filter-values
  bdict-keys
  bdict-map-list
  bdict-map-dict
  bdict-update
  )

 (import scheme
	 util-bst)

 (define (list->bdict lst)
   (list->bst lst 'fixnum eq? <))

 (define (bdict-find-value d p?)
   (let ((kv (bst-find-pair d p?)))
     (if kv
	 (cdr kv)
	 #f)))

 (define bdict-ref bst-ref)

 (define (bdict-filter-values d p?)
   (map cdr (bst-filter-pairs d p?)))

 (define bdict-keys bst-keys)

 (define bdict-map-list bst-map-list)

 (define bdict-map-dict bst-map-bst)

 (define bdict-update bst-update)

 )