scsh-0.6/scheme/alt/table.scm

16 lines
450 B
Scheme

; Copyright (c) 1993-1999 by Richard Kelsey and Jonathan Rees. See file COPYING.
; unworthy of copyright notice
(define (make-table . hash-procedure-option) (list 'table))
(define (table-ref table key)
(let ((probe (assq key (cdr table))))
(if probe (cdr probe) #f)))
(define (table-set! table key value)
(let ((probe (assq key (cdr table))))
(if probe
(set-cdr! probe value)
(set-cdr! table (cons (cons key value) (cdr table))))))