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From: "Ernest Adrogué" <nfdisco@gmail.com>
To: guile-user@gnu.org
Subject: combining ~{ with v paramaters in format string
Date: Mon, 26 Jun 2017 15:08:10 +0200	[thread overview]
Message-ID: <20170626130810.bvpacb2di54ei5mx@doriath.local> (raw)

Hi,

I'm having a little trouble with a format string, using the "format"
module.  The following two lines produce the same output: "a b".

(format #t "~a ~a~%" "a" "b")
(format #t "~{~a ~a~%~}" '("a" "b"))

Now the same thing but adding an argument to give the length of the
first element:

(format #t "~va ~a~%" 6 "a" "b")
(format #t "~{~va ~a~%~}" '(6 "a" "b"))

The first one works as expected, it prints "a      b", whereas the
second one doesn't, it says "error in format".

Is it not possible to use ~{ together with parameters given as
arguments?

Cheers.




                 reply	other threads:[~2017-06-26 13:08 UTC|newest]

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