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On Thu, Jul 07, 2005 at 02:14:03PM +0100, Tony Garnock-Jones wrote:
> Another alternative might be to have either
> (hash-table-get ht key [failure-thunk])
> (hash-table-get/default ht key default)
Yet another alternative would be to have
(hash-table-get* ht key [thunk])
and
(define-syntax hash-table-get
(syntax-rules ()
((_ ht key) (hash-table-get* ht key))
((_ ht key expr ...) (hash-table-get* ht key (lambda () expr ...)))))
but maybe people don't like macros for such simple stuff.
Panu
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