> Does clojure have a facility for creating a value that
> will never be considered equal to any other value?
Duh, brainfart. Gensym will work nicely, of course.
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"Cloju
Well, I expected someone to tell my that was a horrible idea, not to
implement it for me. Thanks!
One thing that concerns me is that :* could conceivable be used as a
key in a hash-map. Perhaps a separate distinct value should be used as
a wildcard? Does clojure have a facility for creating a val
(use '[clojure.contrib.generic.functor :only (fmap)])
(defn update-in-wildcard
"Like update-in, but with :* as a wildcard matcher"
([m [k & ks] f & args]
(condp = [(= k :*) (boolean ks)]
[true true] (fmap #(apply update-in-wildcard % ks f args) m)
[true false] (fmap f m)
[fa
I have a structure of nested Maps and Vectors as follows:
(def document
{:sections
[{:items
[{:quantity 1}
{:quantity 2}]}
{:items
[{:quantity 3}
{:quantity 4}]}]})
The document has a vector of sections (one, in this case), each
section has a v
