From: "Wette, Matthew R (3441)" <matthew.r.wette@jpl.nasa.gov>
To: "guile-user@gnu.org" <guile-user@gnu.org>
Subject: perplexing syntax-rules bug
Date: Fri, 19 Dec 2014 20:14:22 +0000 [thread overview]
Message-ID: <D0B9C71A.F152%Matthew.R.Wette@jpl.nasa.gov> (raw)
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Sorry to bug, I can't figure out why "sval" in the second evaluation of "sect" is bound to the "sval" from the first evaluation of "sect". Anyone understand? This is guile 2.0.11. -- Matt
;; bug_syntax.scm
(define-syntax sect
(syntax-rules ()
((sect <name> <expr> ...)
(let ((sval '((name . <name>) (title . #f))))
(format #t "new sect: ~a\n" (quote <name>))
(format #t " sval= ~a\n\n" sval)
(assq-set! sval 'title "ABC")
(values)))))
(sect one (title "Section One"))
(sect two (title "Section Two"))
> (load "bug_syntax.scm")
new sect: one
sval= ((name . one) (title . #f))
new sect: two
sval= ((name . two) (title . ABC))
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next reply other threads:[~2014-12-19 20:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-19 20:14 Wette, Matthew R (3441) [this message]
2014-12-19 23:11 ` perplexing syntax-rules bug Panicz Maciej Godek
2014-12-20 7:39 ` Marco Maggi
2014-12-20 10:29 ` Thien-Thi Nguyen
2014-12-20 14:37 ` Wette, Matthew R (3441)
2014-12-20 15:02 ` Wette, Matthew R (3441)
2014-12-20 15:02 ` Panicz Maciej Godek
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