Razvan,
I think that you can implement your idea of "extending the class with
proxy" in the following way (originally suggested to me by Rich Hickey
& Chris Houser for use with the pretty printer):
(let [extra-fields (ref {:field1 extra-value1, :field2 extra-value2}]
(proxy [Writer IDeref]
You also probably want more efficiency. Try something closer to:
(defn lazy-reader [filename]
(let [rd (fn [rdr]
(let [buf (char-array 4096)
n (.read rdr buf 0 4096)]
(condp == n
-1 (.close rdr)
0 (recur rdr)
Hi Linus,
Zippers and their associated helpers are woefully undocumented, so I'm
not surprised you fell into the swamp.
I think that the help you're looking for can be found in the
clojure.data contrib project (see https://github.com/clojure/data.zip
for the source and http://clojure.github.com/d
On Mon, 2011-12-12 at 20:03 -0800, Simone Mosciatti wrote:
> Any suggest of how fix that ?
In general, avoid loop.
Specifically, try using letfn or (fn SOME-NAME-HERE [args...] ...) as
your recursion target.
--
Stephen Compall
^aCollection allSatisfy: [:each|aCondition]: less is better
--
You
Ok, I found a possible problem, if i try to put all together, so write
something like this:
(defn lazy-reader [filename]
(with-open [fl (clojure.java.io/reader filename)]
(loop [bite (.read fl)]
(lazy-seq
(cons (bite) (recur (.read fl)))
Obviously doesn't work...
Any su
On Mon, 2011-12-12 at 10:54 -0800, Razvan Rotaru wrote:
> - function returns a value which is a java instance (not possible to
> change here, or at least not from what I see - it needs to be a java
> instance)
> - i need to be able to call some function which gets some values that
> are not part of
Intuitively it sounds like you are making something much more complicated
than it needs to be. I'd say to return from your computation a vector with
the two values, or possibly a map with them.
If you need to create some kind of Java interop object, then map the result
of the computation to that
On Mon, Dec 12, 2011 at 10:54 AM, Razvan Rotaru wrote:
> Hi,
>
> I read that there's no such thing as lisp-like multiple values return
> in clojure. We can use vectors, and the destructuring feature helps
> also.
>
> However, for what I'm trying to do I need to emulate somehow the
> following beha
On 12 December 2011 18:54, Razvan Rotaru wrote:
> - function returns a value which is a java instance (not possible to
> change here, or at least not from what I see - it needs to be a java
> instance)
Why does it need to be a Java instance?
- James
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Hi,
I read that there's no such thing as lisp-like multiple values return
in clojure. We can use vectors, and the destructuring feature helps
also.
However, for what I'm trying to do I need to emulate somehow the
following behavior:
- function returns a value which is a java instance (not possibl
Thanks to all for responses.
I just wanted to use that in higher-order composition in mind, not to
construct any data structures.
I have tweaked a bit the function:
(defn conr[ col item ]
(lazy-seq
(if (seq col)
(cons (first col) (conr (rest col) ite
I thought to just put it into a take...
(take number-of-byte-necessary (lazy-reader (clojure.java.io/reader
"path/to/file")))
On Dec 12, 12:34 pm, Stephen Compall
wrote:
> On Mon, 2011-12-12 at 10:21 -0800, Simone Mosciatti wrote:
> > (defn lazy-reader [fl]
> > (lazy-seq
> > (cons (.
On Mon, 2011-12-12 at 10:21 -0800, Simone Mosciatti wrote:
> (defn lazy-reader [fl]
> (lazy-seq
> (cons (.read fl) (lazy-reader fl
>
> Can work ? (0.03696 ms for 500 char)
> Possible problem ?
You need a termination case; your lazy-reader currently always yields an
infinite sequen
If I do just something like that:
(def fl (clojure.java.io/reader "/path/to/file"))
(defn lazy-reader [fl]
(lazy-seq
(cons (.read fl) (lazy-reader fl
Can work ? (0.03696 ms for 500 char)
Possible problem ?
On Dec 11, 9:49 pm, Stephen Compall wrote:
> On Sat, 2011-12-10 at 23:13
David
Thanks. Nice design!
(extend-type java.util.HashMap
ma/IMatchLookup
(val-at* [this k not-found]
(or (.get this k) not-found)))
2011/12/13 David Nolen :
> You can extend-type to IMatchLookup.
>
> David
>
>
> On Mon, Dec 12, 2011 at 10:56 AM, Takahiro Hozumi
> wrote:
>>
>>
Midje 1.3's most important feature is compatibility with Clojure 1.3.
https://github.com/marick/Midje
Midje is a test framework for Clojure that supports top-down as well as
bottom-up testing, encourages readable tests, provides a smooth migration path
from clojure.test, supports a balance betw
You can extend-type to IMatchLookup.
David
On Mon, Dec 12, 2011 at 10:56 AM, Takahiro Hozumi wrote:
> Hi,
>
> I'd like to use core.match with java.util.HashMap without converting
> into {}.
> The core.match doesn't support it as below.
>
> (let [m (java.util.HashMap. {"a" 1})]
>(match m
>
Hi,
I'd like to use core.match with java.util.HashMap without converting
into {}.
The core.match doesn't support it as below.
(let [m (java.util.HashMap. {"a" 1})]
(match m
{"a" 1} true))
;=> nil
Is it difficult?
Thanks.
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Hello!
What's the clever way to read the E-tags "thisone" and "andthis" in the
XML-file below given I don't know their id on beforehand?
bla bla
bla bla
My solution so far would be something like
(def mz (zip/xml-zip (xml/parse "dataabove.xml")
It's hard to do this efficiently, unfortunately. See my notes & comments on
http://dev.clojure.org/display/design/Byte+Sequences
I did experiment with creating "chunked" binary sequences once, but never
had time to finish it.
-S
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I found that clojure-jack-in worked fine for me once I installed the latest
clojure-mode from Marmalade. Don't use the one in the gnu repo. Be sure
to use the package.el linked to on the marmalade-repo.org home page in
order to access the repo.
On Dec 11, 2011 10:11 PM, "Richard "Tiger" Melville
Just do like this:
1.clone https://github.com/technomancy/clojure-mode.git into preferred
directory e.g ./~git.
add (add-to-list 'load-path "~/git/clojure-mode")
(require 'clojure-mode)
to .emacs
2.Install leiningen
3.(from terminal) lein plugin install swank-clojure 1.3.3
4.(from terminal )
If this is your code: http://www.lisperati.com/clojure-spels/code.html
Then (spel-print (describe-paths 'living-room game-map)) will work.
spel-print takes a list that is returned from describe-paths.
/Kevin
On Mon, Dec 12, 2011 at 7:51 AM, jayvandal wrote:
> I am trying castin spels in cloju
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