[plt-scheme] Borrowing #' aka quote-syntax
On Sat, 2006-12-09 at 00:03 +0100, Jens Axel Søgaard wrote:
> Today I wanted to borror #' for my own purpose, so I tried
> the same trick:
>
> > (let-syntax ([quote-syntax
> (lambda (stx)
> (display "foo\n")
> (syntax-case stx ()
> [(_ datum) #'42]))])
> (list #'abc #'(1 2 3)))
> (.#<syntax:22:12> .#<syntax:22:18>)
>
> The first syntax-object contains abc and the other (1 2 3).
#' is an abbreviation for syntax, not quote-syntax.
(let-syntax ([syntax
(lambda (stx)
(display "foo\n")
(syntax-case stx ()
[(_ datum) (syntax 42)]))])
(list #'abc #'(1 2 3)))
foo
foo
(42 42)
sam th