On 14 Oct 2010, at 21:52, clwham...@gmail.com wrote:
I need a function that produces the 'next' value from a lazy-seq --
something like a Python generator. I imagine it would have to be some
sort of closure like:
(def next-sine
(let [sines (atom (cycle (map sin (range 0 6.28 0.01]
2010/10/15 B Smith-Mannschott bsmith.o...@gmail.com
On Fri, Oct 15, 2010 at 04:13, David Jacobs
develo...@allthingsprogress.com wrote:
I've just started learning Clojure and I'm excited about what I see. The
combination of power and sophistication in the language is refreshing, and
I've
On Thu 14/10/10 20:58 , Mark Engelberg mark.engelb...@gmail.com sent:
Since no one chimed in with support or reasoning for resultset-seq's
current lower-casing behavior, can we discuss changing it to
case-maintaining behavior, or at least make it something you can set
with an optional flag?
I get that. However, broken can describe code on several different levels,
not just on the level of compilation or execution.
I would say that for a young aspiring language like Clojure, having readable,
presentable source code is key, and that not having these things amounts to
being broken,
i could get it down to around 1.6/1.7 seconds
s...@sid-:~$ time clojure dummy.clj
woohoo palindrome: eve
woohoo palindrome: ranynar
real0m1.739s
user0m2.088s
sys 0m0.124s
made a couple of changes
- only call 'palindrome?' for substrings between identical
characters(between
It's all about priorities. At this point the goal is to write Clojure in
Clojure, so the useful lifecycle of Java indentation fixes is hopefully modest.
If you are looking to spend time on Clojure, there are many tickets that need
patches. :-)
Ah, I see, thank you. Multimethods take a while getting used to I guess :)
Definitely better for my problem than defprotocol though.
On 14/10/10 22:13, Armando Blancas wrote:
Maybe something like this. Those calls polymorphic on the returrn
value of the anynimous function, so this is more
Hello,
I am new to clojure, so sorry if this is a stupid question, but:
How portable are clojure programs between clojure clr and clojure jvm?
For example, can i use clojure contrib in clr? How about Enlive or
other libraries?
Can I write one clj program that will run both in jvm and clr? Or is
Hi,
I'm just starting to get my head wrapped around STM just by reading
about it so I can make a decision on whether to port a Java project to
Clojure.
a) can STM transactions contain calculations that take a 'long' time,
let's say computing the cryptographic hash of a plaintext. I'd
'ensure'
I can't answer most of these, but I'll take a crack at a)
From my understanding of the clojure code, the answer to long running
transactions will depend on your application. If you have one writer,
and 100 readers, you'll be fine. The readers will read the old value
while the writer is updating
From what I've been seeing of both clojure and clojure-clr...they
aren't very portable at all. Pure clojure code should be fine. But
since clojure likes to use the underlying VM for almost everything it
can, you'll have issues. FileStream in CLR may not be the same as
FileStream in Java. As a CLR
dosync is a way of ensuring whole stateful operation is done atomically.
(ie as if everything was happening in one step.)
That contradicts b). During a whole dosync, you can only see one state
of the world.
If you do not need atomicity, do multiple dosync.
You should create another abstraction
Hello,
I'm a developping a Swing GUI in Clojure and follow the MVC patterns.
The view implements a protocol for displaying data, and another one to
register Swing listeners. Callbacks registered with the second
protocol only access the UI through the view protocol.
Each of this protocol has ~50
Hi all,
I need to perform string replacement a number of times and currently
achieve this using:
(.replace (.replace (.replace (.replace string old new...
Is there a more succinct and 'clojurish' way to do this?
Thanks,
P.
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Hi,
On 15 Okt., 16:25, Paul paul_bow...@yahoo.com wrote:
(.replace (.replace (.replace (.replace string old new...
Is there a more succinct and 'clojurish' way to do this?
(- string
(.replace old1 new1)
(.replace old1 new1)
...
(.replace oldN newN))
Sincerely
Meikel
--
You
From my experience, protocols are essentially contracts between
various modules of the code base - the fewer they are (in number) the
better my peace of mind! IMHO if you just need to pass around function
implementations, consider using defrecord.
(defrecord OrderProcessingView [fn1 fn2 fn3...])
On Fri, Oct 15, 2010 at 16:25, Paul paul_bow...@yahoo.com wrote:
Hi all,
I need to perform string replacement a number of times and currently
achieve this using:
(.replace (.replace (.replace (.replace string old new...
Is there a more succinct and 'clojurish' way to do this?
Instead of
user= (reduce (fn [s [old new]] (.replace s old new)) abcd [[a b]
[b c] [c d]])
user=
2010/10/15 Paul paul_bow...@yahoo.com
Hi all,
I need to perform string replacement a number of times and currently
achieve this using:
(.replace (.replace (.replace (.replace string old new...
Is
Ooooh, lovely!
P.
On Oct 15, 3:31 pm, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
On 15 Okt., 16:25, Paul paul_bow...@yahoo.com wrote:
(.replace (.replace (.replace (.replace string old new...
Is there a more succinct and 'clojurish' way to do this?
(- string
(.replace old1 new1)
2010/10/15 K. kotot...@gmail.com
Hello,
I'm a developping a Swing GUI in Clojure and follow the MVC patterns.
The view implements a protocol for displaying data,
Stop!. When I read this, my mind cries Alert! potential java-in-clojure
code here !.
clojure promotes a generic approach to data
Thanks Tim that with the readers and writers is what I figured.
On Oct 16, 12:12 am, Timothy Baldridge tbaldri...@gmail.com wrote:
I can't answer most of these, but I'll take a crack at a)
From my understanding of the clojure code, the answer to long running
transactions will depend on your
Hi group,
I'm playing around with Clojure for a few weeks now and quite like it.
Today however I noticed one thing which puzzles me a lot, and maybe
points at something very basic I've misunderstood, so I wanted to ask
here:
Why doesn't
(do (map #(throw (Exception. %)) '(a)) true)
throw any
Stop!. When I read this, my mind cries Alert! potential java-in-clojure
code here !.
Sorry I didn't want to frighten you with the words MVC and Clojure
in the same sentence :-).
However, I think it's just the right approach to separate the
presentation from the logic. I may be wrong and then
2010/10/15 K. kotot...@gmail.com
Stop!. When I read this, my mind cries Alert! potential
java-in-clojure
code here !.
Sorry I didn't want to frighten you with the words MVC and Clojure
in the same sentence :-).
However, I think it's just the right approach to separate the
presentation
Hello everybody,
The evaluation of
(when-first [[x y z] [1 2 3 4 5]] (+ x y z))
is returning
nil
I was expecting it to return 6 ..
am I missing something ?
Thanks,
Sunil.
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Hello everybody,
The evaluation of
(when-first [[x y z] [1 2 3 4 5]] (+ x y z))
is returning
nil
I was expecting it to return 6 ..
am I missing something ?
when-first is a macro which will, in the above example get expanded to -
(when (seq [1 2 3 4 5])
(let [[x y z] (first [1 2 3 4
sorry ...
the expression should have been .. the expression should have been
(when-first [x [1 2 3 4 5]] (+ x 1 2))
and it works fine...
Thanks ..
:)
Sunil.
On Fri, Oct 15, 2010 at 9:38 PM, Sunil S Nandihalli
sunil.nandiha...@gmail.com wrote:
Hello everybody,
The evaluation of
Map returns a lazy seq (which I suspect you already knew). Try it with
doall instead of do. The do only wraps the map expression, it
doesn't actually realize the seq.
On Fri, Oct 15, 2010 at 11:39 AM, bleibmoritztreu jlewa...@uos.de wrote:
Hi group,
I'm playing around with Clojure for a few
Hi All,
This is how i see the package in package explorer.
IEssbase.class
(I) IEssbase
(C, s f) Home
(M, s) create(String) IEssbase
(M, c) Home()
(P, s f) JAPI_VERSION
I can import like this in Clojure
=(import `(com.essbase.api.session IEssbase))`
I can
On Fri, Oct 15, 2010 at 1:49 AM, David Powell djpow...@djpowell.net wrote:
I'm in favour of down-casing - at least by default. Some processing is going
to happen anyway, as column names might contain spaces, which wouldn't
be allowed in keywords.
--
Dave
One of the more significant
In this case I would most certainly use multimethods. This is the
perfect use case for them.
If you want your views themselves to have certain forms, you may
consider applying protocols there.
Paul
On Oct 15, 8:57 am, Laurent PETIT laurent.pe...@gmail.com wrote:
2010/10/15 K.
Try using IEssbase/JAPI_VERSION instead (replace dot with slash).
On Oct 15, 11:32 am, oak ismail.oka...@gmail.com wrote:
Hi All,
This is how i see the package in package explorer.
IEssbase.class
(I) IEssbase
(C, s f) Home
(M, s) create(String) IEssbase
Very cool! I've been working on something similar. Will check it out!
On Oct 3, 4:49 pm, jmis jmis@gmail.com wrote:
It's very encouraging to see others interested in the project. I've
added the licensing information to the grammar file. There's a few
other attributions I need to take
I've been using Clojure 1.2 and appengine-clj for a project on
AppEngine and two days ago it stopped working after the Google team
released some newly refactored code to production. Short discussion of
this problem on the AppEngine-Java discussion group is here:
If your protocol functions generally look like : display that data on this
view, then why not leverage multimethods and double dispatch ?
I think I choose a misleading example, sorry about that.
I'm working mainly with one kind of data, but there a lot of
functions.
For instance one function
2010/10/15 Mark Engelberg mark.engelb...@gmail.com
On Fri, Oct 15, 2010 at 1:49 AM, David Powell djpow...@djpowell.net
wrote:
I'm in favour of down-casing - at least by default. Some processing is
going to happen anyway, as column names might contain spaces, which wouldn't
be allowed in
On Oct 15, 2:51 pm, hobnob hob...@ml1.net wrote:
Hi,
I'm just starting to get my head wrapped around STM just by reading
about it so I can make a decision on whether to port a Java project to
Clojure.
a) can STM transactions contain calculations that take a 'long' time,
let's say
On Oct 15, 7:57 pm, peter veentjer alarmnum...@gmail.com wrote:
On Oct 15, 2:51 pm, hobnob hob...@ml1.net wrote:
Hi,
I'm just starting to get my head wrapped around STM just by reading
about it so I can make a decision on whether to port a Java project to
Clojure.
a) can STM
Nested classes require the syntax AClass$NestedClass -- this being the
real name of the class in the JVM.
Static members of classes are referenced as AClass/member --
essentially treating the class as a namespace of its static members.
So this should do it:
(IEssbase$Home/create
On Fri, Oct 15, 2010 at 09:32, oak ismail.oka...@gmail.com wrote:
Hi All,
This is how i see the package in package explorer.
IEssbase.class
(I) IEssbase
(C, s f) Home
(M, s) create(String) IEssbase
(M, c) Home()
(P, s f) JAPI_VERSION
Out of interest
Should autocomplete work in the swank repl? It works perfectly in a
clj buffer but nothing happens in the repl.
On Aug 19, 7:46 am, Phil Hagelberg p...@hagelb.org wrote:
On Thu, Aug 19, 2010 at 6:21 AM, Steve Purcell st...@sanityinc.com wrote:
I guess Phil's very busy, but if he can apply
Works for me in repl. I have too much slime/clojure customization code, not
really sure what does what :)
Maybe this:
(defun slime-clojure-repl-setup ()
(when (string-equal clojure (slime-connection-name))
(message Setting up repl for clojure)
(when (slime-inferior-process)
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