Thanks. Something got out of whack when I copied it.
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Works fine for me. Here it is in a leiningen REPL session:
$ lein repl
REPL started; server listening on localhost port 53116
user=> (defn skeleton
[tree]
(map skeleton (filter seq? tree)))
#'user/skeleton
user=> (def test_data1 '(1 (2 3) ( ) (( )) :a))
#'user/test_data1
user=> (skeleton
Lee:
I tried
(defn skeleton
[tree]
(map skeleton (filter seq? tree)))
with
(def test_data1 '(1 (2 3) ( ) (( )) :a))
and got a Java out of memory error.
Where is the condition end recursion condition?
tnx
cmn
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http://www.cis.upenn.edu/~matuszek/cis554-2010/Assignments/clojure-01-exercises.html
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Which exercises are those? Are they online somewhere?
On Sep 7, 11:38 pm, octopusgrabbus wrote:
> When I started learning Clojure, I did not want to be a casual user that
> shyed away from Clojure's native syntax, preferring to do as much as
> possible in Java. To that end, I discovered some gra
Thanks.
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You can certainly do this without zippers. Here's one simple way:
(defn skeleton
[tree]
(map skeleton (filter seq? tree)))
This style of recursion consumes memory proportionate to the depth of the tree,
and will run out for enormously deep trees. But for reasonable trees it should
be fine
This isn't a request to get help w/ a 4Clojure problem, and I am not
specifically asking for help with producing the skeleton (the tree structure
without the leaves) of the sequences show below, although I would be
appreciative of help. Instead I am asking if a solution to do this is simple
or
I am confused by your question. If you are looking for help on a
4clojure problem, you may post to the new Google 4clojure group
(http://groups.google.com/group/4clojure).
If not, please give more details on the skeleton of a tree problem and
I'm sure someone here can help.
On Sep 7, 3:38 pm, oct
When I started learning Clojure, I did not want to be a casual user that
shyed away from Clojure's native syntax, preferring to do as much as
possible in Java. To that end, I discovered some graduate computer science
Clojure exercises and started working them.
I know about 4Clojure, but these
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