why on earth is this a macro and not a regular fn?
Jim
On 14/08/13 16:19, Daniel Meneses wrote:
Hi!
Thanks for your answer Sean I got it solved using clj-time
Also I found the problem with my macro attempt
user> (defmacro is
[s instant]
`(= (.get ~instant Calendar/DAY_OF_WEEK)
(. Calendar ~s)))
#'current-day.core/is
user> (is FRIDAY (Calendar/getInstance))
false
user> (is WEDNESDAY (Calendar/getInstance))
true
I was quoting the symbol !!
On Tuesday, August 13, 2013 8:21:39 PM UTC-4, Sean Corfield wrote:
Perhaps clj-time might help you?
https://github.com/clj-time/clj-time
<https://github.com/clj-time/clj-time>
(ns time.core
(:require [clj-time.core :as time]
[clj-time.local :as local]
[clj-time.predicates :as p]))
(p/monday? (time/now)) ;; false
(p/tuesday? (time/now)) ;; false
(p/wednesday? (time/now)) ;; true (for me in California since
(time/now) is UTC)
(p/monday? (local/local-now)) ;; false
(p/tuesday? (local/local-now)) ;; true (for me)
(p/wednesday? (local/local-now)) ;; false (not yet in California)
Sean
On Tue, Aug 13, 2013 at 3:14 PM, Daniel Meneses Báez
<dap...@gmail.com <javascript:>> wrote:
> Hi :)
>
> I really want to know if there is a way to do this:
>
> (ns ...
> (:import [java.util Calendar]))
>
> (defsomething ;; if it is possible using a macro I'm ok with that
> calendar-member
> [member]
> (symbol (str "Calendar/" member)))
>
> what I want to know if an instance of Calendar "isMonday",
"isFriday"
> "isSunday" etc...
>
> so I was thinking to write something like
>
> (defn- isss [day instant]
> (= (.get instant Calendar/DATE) (calendar-member day)))
>
> and then use it like (def is-friday (partial isss 'FRIDAY)) ;;
>
> am I being to crazy?
>
> btw I'm really loving the language.
>
>
>
> --
> Daniel Meneses Báez
>
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