On Tue, Mar 24, 2009 at 11:05 PM, Korny Sietsma <ko...@sietsma.com> wrote:
> It'd be nice to have a macro that worked more like the first example -
> "spit" is great for one-liners, but the fact that it opens and closes the
> file each time you call it seems a bit painful for anything more complex.
> Something that ends up working like:
>
> (with-out-as "test.txt"
> (println "hello")
> (println "world"))
WARNING: spoilers ahead:
(use 'clojure.contrib.duck-streams)
(defmacro with-out-as
[f & body]
`(with-open [w# (writer ~f)]
(binding [*out* w#]
~...@body)))
(with-out-as "/tmp/test.txt"
(print "hola,")
(println " crayola...."))
Cheers,
Victor Rodriguez.
> Hmm - I've never written a macro, maybe I should give this a try...
>
> - Korny
>
> On Wed, Mar 25, 2009 at 5:10 AM, Stuart Sierra <the.stuart.sie...@gmail.com>
> wrote:
>>
>> On Mar 24, 12:42 pm, Parth Malwankar <parth.malwan...@gmail.com>
>> wrote:
>> > user=> (with-open [f (writer (file "test.txt"))]
>> > (binding [*out* f]
>> > (println "hello world !!!")))
>>
>> Or even more simply:
>>
>> (use 'clojure.contrib.duck-streams)
>> (spit "test.txt" "Hello, world!\n")
>>
>> -Stuart Sierra
>>
>
>
>
> --
> Kornelis Sietsma korny at my surname dot com
> "Every jumbled pile of person has a thinking part
> that wonders what the part that isn't thinking
> isn't thinking of"
>
> >
>
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