chibi-scheme/lib/srfi/2.module
2010-06-22 22:48:09 +09:00

16 lines
420 B
Text

(define-module (srfi 2)
(export and-let*)
(import-immutable (scheme))
(body
(define-syntax and-let*
(syntax-rules ()
((and-let* () . body)
(begin . body))
((and-let* ((var expr) . rest) . body)
(let ((var expr))
(and var (and-let* rest . body))))
((and-let* ((expr) . rest) . body)
(let ((tmp expr))
(and tmp (and-let* rest . body))))))))