Here a different version, without the sequence abstraction. I realise
its idiomatically obsolete, but thought you guys might enjoy it.
(defn sift
Sift. Old Skool.
[key-pred in-s]
(reduce
(fn [coll elem]
(if (key-pred elem)
(conj coll [(str elem) []])
(conj
(pop
I would be interested in native / C interoperability; perhaps either
(or both) of these libraries:
http://github.com/bagucode/clj-native
http://github.com/Chouser/clojure-jna
And others, if there are similar ones. In general, the Clojure way of
interacting with native code.
Best Regards,
Joonas
Hi,
I am new to clojure. I want to use try-catch block to the (.getPage
*wc* ~url) statement of code. But I am getting this error:
java.lang.Exception: Can't bind qualified name:nlplabs.webfetch.agent/
exception
Would u pls help me to sort out this problem?
Thanx in advance
Code snippet:
(ns
2010/1/25 Manish manish.zed...@gmail.com:
Hi,
I am new to clojure. I want to use try-catch block to the (.getPage
*wc* ~url) statement of code. But I am getting this error:
java.lang.Exception: Can't bind qualified name:nlplabs.webfetch.agent/
exception
Would u pls help me to sort out this
Nothing is declared in this namespace as exception
On Jan 25, 5:03 pm, Michael Wood esiot...@gmail.com wrote:
2010/1/25 Manish manish.zed...@gmail.com:
Hi,
I am new to clojure. I want to use try-catch block to the (.getPage
*wc* ~url) statement of code. But I am getting this error:
Thanx for ur quick response,
And its not making difference by changing exception to e.
I am still getting this error:
java.lang.Exception: Can't bind qualified name:nlplabs.webfetch.agent/
e
Thanx
Regards
Manish Zedwal
On Jan 25, 5:03 pm, Michael Wood esiot...@gmail.com wrote:
2010/1/25 Manish
I think you'll have to use exception# instead of exception, in order to
generate a local symbol. Otherwise, the quoting will try to resolve exception
in the current namespace.
Also, don't expand ~url more than once -- what if the expression passed for
url has side effects? It would get
Hi
On Mon, Jan 25, 2010 at 12:41 PM, Manish manish.zed...@gmail.com wrote:
Hi,
I am new to clojure. I want to use try-catch block to the (.getPage
*wc* ~url) statement of code. But I am getting this error:
java.lang.Exception: Can't bind qualified name:nlplabs.webfetch.agent/
exception
* (ns) in depth, or at least why namespaces need at least one .
* What's this error kit people keep talking about? duck streams?
* Using Nailgun to avoid the JVM startup cost for tests in Leiningen
(still in flight, see its group)
* love, don't fear paredit (I really need this)
Thanks for putting
It might be nice to have a built-in mechanism to get with a timeout.
Maybe (await-for ...) could be modified to work on both agents and
promises?
Note though, that getting a promise with a timeout doesn't require
explicitly closing over the promise. The anonymous function that is
created in the
On 25 Jan, 12:18, Joonas Pulakka joonas.pula...@gmail.com wrote:
I would be interested in native / C interoperability; perhaps either
(or both) of these libraries:
http://github.com/bagucode/clj-native
http://github.com/Chouser/clojure-jna
And others, if there are similar ones. In general,
This group works as wave group as well :)
2010/1/24 Seth seth.schroe...@gmail.com:
When: weekends
Where: DC, Boston, NY, San Fran
Who: at least one, probably more
Newsgroups are such a painful way to vote on things. Google Wave or
some other wiki-like thing would make it much easier to
One approach is to compile the Jython code into a class file. This
requires some work on the Python side (similar to using gen-class in
Clojure so that Clojure code can be called from Java), and the Python
class of interest can't use multiple-inheritance. This approach is
discussed in the
Golf! Yeah!
Here the low-level version:
(defn sift
[pred coll]
(letfn [(step
[sep [f :as s] xs]
(if (or (not s) (pred f))
(cons [sep xs] (sift pred s))
(recur sep (next s) (conj xs f]
(lazy-seq
(when-let [s (seq coll)]
I am trying to learn clojure by learning the programing by example
open wiki book. For an excercise demonstrating iteration they give
the following example:
(defn factorial
([n]
(factorial n 1))
([n acc]
(if (= n 0) acc
(recur (dec n) (* acc n)
first
You may find this ns cheatsheet helpful:
http://gist.github.com/284277
Justin
On Jan 24, 10:28 am, Manfred Lotz manfred.l...@arcor.de wrote:
Hi all,
I'm stumbling about the very basics.
Calling clojure like this:
rlwrap java
-cp
I would suggest Estonia, but Germany is good as well! :)
Br,
Jevgeni
On Jan 23, 3:45 pm, Heinz N. Gies he...@licenser.net wrote:
On Jan 23, 2010, at 12:04 , Boštjan Jerko wrote:
On 23.1.2010, at 10:33, Edmund wrote:
East coast for we Europeans ?
On Jan 23, 8:53 am, Christophe
Hi,
On Jan 25, 12:41 pm, Manish manish.zed...@gmail.com wrote:
I am new to clojure. I want to use try-catch block to the (.getPage
*wc* ~url) statement of code. But I am getting this error:
java.lang.Exception: Can't bind qualified name:nlplabs.webfetch.agent/
exception
Would u pls help
Greetings,
I'm new to Clojure and working my way through Project Euler problems
for learning. I stuck with problem 7, not with solution, but with
performance. My code needs about 90sec to find solution.
(ns problem7)
(defn no-dividers?
checks if number can be divided with any of
Hi Group,
thought this nice puzzle would make a good occasion for a first
post. :-)
A solution to the original problem from c.l.s, with keywords replacing
symbols:
(ns sogaard-kata
(:use clojure.contrib.seq-utils))
(defn sogaard-kata [xs]
(map (fn [[k ys]] (into (vec k) (vec ys)))
I concur. Columbus, OH is a pretty good location :D [But then, I am
just being selfish]
In all seriousness, it does act as a pretty central location in the
midwest region IMO.
Raju
On Jan 22, 4:15 pm, Wilson MacGyver wmacgy...@gmail.com wrote:
I vote let's turn this into a clojure vacation,
Dear Mr Wampler,
I'm interested in reviewing manuscripts for SI of IEEE Software on
Multiparadigm Programming.
Best regards,
Dr. Violeta Damjanovic
http://sites.google.com/site/vdamjanovic/
On Jan 23, 6:59 pm, Dean Wampler deanwamp...@gmail.com wrote:
Hi, all,
Apologies for duplicate
Hi, I'm an experienced C# / .Net developer and a relative Lisp newbie.
In my .Net programming I have taken a lot of design inspiration Domain
Driven Design and Eric Evans book in particular. The idea that a
developing a strong model of the problem domain is the most important
part of application
On Sat, Jan 23, 2010 at 1:24 PM, Konrad Hinsen
konrad.hin...@fastmail.net wrote:
On 22 Jan 2010, at 22:15, Wilson MacGyver wrote:
I vote let's turn this into a clojure vacation, and hold it in an
exotic location.
Otherwise, hey, Columbus Ohio is as good as any other city. :)
My vote is for
On Sun, Jan 24, 2010 at 11:26 PM, rob r.p.l...@gmail.com wrote:
Hi,
I was wondering if anyone has tried somehow calling Jython functions
from within Clojure, and how you went about doing this if so. I have
not used Jython, but I would imagine the Jython interpreter can be
invoked in the
On 22 Jan, 22:06, Conrad drc...@gmail.com wrote:
http://lisperati.com/vijual/
Hope some of you find this library useful. Let me know if you have
feature requests or want to help me improve this library.
Many thanks! I shall most certainly use this.
--
You received this message because you
Hi,
On Jan 25, 8:58 am, rb raphi...@gmail.com wrote:
* interacting with a database in general, and covering clojureql in
particular
Beware the redesign: the ClojureQL DSL is currently revised. The end
result is not clear, yet. However it will change.
Sincerely
Meikel
--
You received this
No support for cyclical dependencies is biting me too. I'm trying to
use one .clj file per protocoltype, which doesn't seem *too* smelly.
It's a habit that goes way back... maybe time to revise my
worldview :-)
If a namespace is intended to be a stratum then I will refactor to fit
that. Fewer,
I think I have a good topic.
How about the intricacies of syntax-quotes and in particular, nested
syntax-quotes?
When I was first learning Lisp (Common Lisp), I had to struggle with
nested syntax-quotes (backquotes) very much. That was until I read
Alan Bawden's superb paper on the subject, and
While I'm in Paris to do some Tapestry training, I'll also be doing a
FREE talk on Clojure:
Clojure: Towards the Essence of Programming
The talk is sponsored by SkillsMatter; it's aimed at people who
haven't used Clojure before, but if people on the list want to come
out to show some support,
That's defining a function factorial that can be called with either one or
two arguments. When called with one argument, it immediately calls itself
with two arguments. So the (factorial n 1) call provides acc with an
initial value of 1. The ([n] and ([n acc] lines are the declarations of the
How about the intricacies of syntax-quotes and in particular, nested
syntax-quotes?
Yeah, +1.
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated
Rock,
Could you please proved a link to Alan Bawden's paper?
Thanks,
Sean
On Jan 25, 9:06 am, Rock rocco.ro...@gmail.com wrote:
I think I have a good topic.
How about the intricacies of syntax-quotes and in particular, nested
syntax-quotes?
When I was first learning Lisp (Common Lisp), I
wow!
So if it is called with 1 argument, then the body of the function is:
(factorial n 1)
But if it is called with 2 arguments then the body of the function
is:
(if (= n 0) acc
(recur (dec n) (* acc n)))
Is this a standard feature of lisp? Sorry I am very noobish.
thx!
On
I agree that at least part (well I guess that would be half) of the
conference should be on a weekend to permit attendance for those with
work conflicts. A suggestion that I recall seeing a while ago was to
dovetail
ICFP 2010 http://www.icfpconference.org/. That would be late
September in the
Hello,
So far, i've encountered the term of kata applied to software in a
somewhat similar sense as in the martial arts: very detailed
step-by-step explanation of how one things about the problem, solves
it bit by bit (does he first play with some functions at the REPL,
does he start to code from
On Mon, Jan 25, 2010 at 3:42 AM, Richard Newman holyg...@gmail.com wrote:
The former is a lot clearer to read, as it uses standard Clojure
datastructures.
... which offers other advantages beyond the human, such as
(def page-names keys)
user= (page-names foobar)
(:page :posts :post)
On Mon, Jan 25, 2010 at 3:09 AM, ataggart alex.tagg...@gmail.com wrote:
(zipmap
(map keyword (take-nth 2 ~params))
(map (comp var-get resolve) (take-nth 2 (next ~params
Neat :-) Thanks!
- Joel Rosario.
--
You received this message because you are subscribed to the Google
Groups
Sean Devlin napisał(a):
Rock,
Could you please proved a link to Alan Bawden's paper?
I guess Rock meant Quasiquotation in Lisp:
https://eprints.kfupm.edu.sa/60346/1/60346.pdf
BTW many thanks for your awesome videos. :)
Br,
Rob
--
You received this message because you are subscribed to the
Laurent,
This thread is a set up. Specifically, I'm hoping these guys pick up
the blog post:
http://www.katacasts.com/
I plan on posting a video in about a week going through everything.
Demonstrate the power of the sequence abstraction, and the
similarities of regexs and predicates. Show how
Hi,
On Sun, 24 Jan 2010 17:07:23 +0100
Meikel Brandmeyer m...@kotka.de wrote:
But why does this fail?
my= (classpath)
java.lang.Exception: Unable to resolve symbol: classpath in this
context (NO_SOURCE_FILE:2)
Because you used require. Try clojure.contrib.classpath/classpath
Yes, that's basically right. I don't know if common lisp has a similar
syntax for defining functions with multiple parameter lists, but you'll
definitely see it a lot in Clojure code.
On Mon, Jan 25, 2010 at 10:22 AM, Glen Rubin rubing...@gmail.com wrote:
wow!
So if it is called with 1
Thank you for these good ideas! I'm going to try it. My goal is to
use the Natural Language Toolkit in Clojure. I also posted the same
question here: http://stackoverflow.com/questions/2129253/clojure-jython-interop
Rob
On Jan 24, 7:08 pm, Eric Lavigne lavigne.e...@gmail.com wrote:
I was
Glen, learning by example is good, but you should consider backing it
with also taking a look at the main documentation pages from
clojure.org !
Concerning the topic at hand, you need to get :
* the syntax for defn :
http://richhickey.github.com/clojure/clojure.core-api.html#clojure.core/defn
Not a precise subject, but something along the lines : here is how
one would do stuff X in a classical mainstream OO language, and now
here is how one would do same thing in lisp could help e.g. java devs
cross the bridge.
There's been a recent question on the ml regarding the management of
big
Yeah, Quasiquotation in Lisp https://eprints.kfupm.edu.sa/
60346/1/60346.pdf, that's the one.
I've already posted some material regarding syntax-quote in the
Learning Clojure Wiki.
As for Bawden's and Graham's tips, it basically all boils down to this
(adapted from ACL by Graham):
Syntax-quote
Laurent,
Which thread are you referring to?
Sean
On Jan 25, 11:45 am, Laurent PETIT laurent.pe...@gmail.com wrote:
Not a precise subject, but something along the lines : here is how
one would do stuff X in a classical mainstream OO language, and now
here is how one would do same thing in lisp
Amit Rathore amitrath...@gmail.com wrote:
ok folks, we need some more real opinions... :)
we're thinking it will be in the Bay Area, some time during early
fall. weekend seems logical from the responses so far...
I've only counted two votes for the Bay Area as a first choice so far
in this
For anyone interested, I have just added the above material to the
Learning Clojure Wiki. I hope you find it useful.
Here's the link:
http://en.wikibooks.org/w/index.php?title=Learning_Clojurestable=0shownotice=1#Nested_Syntax-quotes
--
You received this message because you are subscribed to
2010/1/25 Sean Devlin francoisdev...@gmail.com:
Laurent,
Which thread are you referring to?
Found it !, here :
http://groups.google.com/group/clojure/browse_thread/thread/2cfb3335f3e5f940#
Sean
On Jan 25, 11:45 am, Laurent PETIT laurent.pe...@gmail.com wrote:
Not a precise subject, but
On Sun, 24 Jan 2010 12:28:16 -0800 (PST)
Justin Kramer jkkra...@gmail.com wrote:
You may find this ns cheatsheet helpful:
http://gist.github.com/284277
Justin
A good pointer.
--
Thanks,
Manfred
--
You received this message because you are subscribed to the Google
Groups Clojure
Hello all,
We are finally ready to release clojure-contrib 1.0.0 and 1.1.0!
Major/minor version numbers of contrib match major/minor version
numbers of Clojure.
So if you're using Clojure 1.0, use contrib 1.0.0;
if you're using Clojure 1.1, use contrib 1.1.0.
Get pre-built ZIP distributions
Thanks again Marc, I made a note of it on the StackOverflow thread.
On Jan 25, 2:41 pm, Marc Downie m...@openendedgroup.com wrote:
On Mon, Jan 25, 2010 at 5:34 PM, rob r.p.l...@gmail.com wrote:
Thank you for these good ideas! I'm going to try it. My goal is to
use the Natural Language
hi,
are there plans for the stm to expose parameters sorta like how jvm
gc's do, so people can if need be tweak the stm to better fit their
personal application?
thanks.
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send
Changing (concat primes [k]) to (conj primes k) gave me an order of
magnitude performance increase.
On Jan 24, 1:19 pm, Nebojsa Stricevic nebojsa.strice...@gmail.com
wrote:
Greetings,
I'm new to Clojure and working my way through Project Euler problems
for learning. I stuck with problem 7,
Small things (read: I didn't notice any performance change in my
tests)...
You can also pull the (. Math sqrt number) into the let binding so
it's not calculated every time the anonymous function is called.
Also the reduce call in no-dividers? doesn't short-circuit when it
hits a false. I'd
Thanks a lot for the videos you've done so far. I watch them all.
Here are some ideas for shows, from more Clojure centric to just
interesting:
* defprotocol, deftype, reify, ...
* data-flow programming
* pattern matching
* monads
* performance tuning (unboxed numbers, type hints, ...?)
* making
I think of defprotocol/deftype as a dispatching mechanism to the
functions named in the protocol. As such, it doesn't make sense
(within the scope of a single namespace) to declare the same function
name in two protocols any more than it would make sense to call defn
twice with the same name.
In
On Mon, Jan 25, 2010 at 4:29 PM, ataggart alex.tagg...@gmail.com wrote:
In the example you present, I'd say you have one protocol with
toString, and say two other protocols, each declaring their own
relevant functions, and a deftype can implement what protocols it
wishes.
thanks, that sounds
Justin Kramer jkkra...@gmail.com writes:
You may find this ns cheatsheet helpful:
http://gist.github.com/284277
That is most helpful.
What's not helpful is the weird mix of lists and vectors used by these
forms. When I finally made it to :rename accepting a map, I had to take
a break.
--
What's not helpful is the weird mix of lists and vectors used by these
forms. When I finally made it to :rename accepting a map, I had to take
a break.
so, like, this means i /not/ the only one who finds the whole
(whatever you want to call it) include/import syntax kinda crazy?
phew.
--
You
Thanks for the thoughts everyone, I'm having a read through that paper
now. I'm still looking for some code to read because while what you
are saying makes, I've done so much OOP my brain is having a hard time
making the jump.
Also added it as an suggestion in this thread if anyone else is
At the REPL, in 1.2.0-master
(meta (second '(a #^b c)))
nil
In 1.1.0-new (and I believe all previous versions)
(meta (second '(a #^b c)))
{:tag b}
Is this intentional, or a bug? Is the new type hint syntax being
introduced in 1.2?
--
You received this message because you are subscribed to
Works for me.
user [*clojure-version* (meta (second '(a #^b c)))]
[{:interim true, :major 1, :minor 2, :incremental 0, :qualifier
master} {:tag b}]
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to
I've double-checked I have the latest from github, cleaned and
recompiled, and I'm still getting the same results.
user= [*clojure-version* (meta (second '(a #^b c)))]
[{:interim true, :major 1, :minor 2, :incremental 0, :qualifier
master} nil]
Does anyone have an idea what's going on here?
On
On Mon, Jan 25, 2010 at 10:52 PM, Zach Tellman ztell...@gmail.com wrote:
At the REPL, in 1.2.0-master
(meta (second '(a #^b c)))
nil
In 1.1.0-new (and I believe all previous versions)
(meta (second '(a #^b c)))
{:tag b}
Is this intentional, or a bug? Is the new type hint syntax being
Hi all,
I am writing a distributed program using Clojure. I am trying to write
some code to pass structs around to different nodes on the network by
serializing and deserializing strings. I do not fully understand how
to use *print-dup* and read to do this.
The last line of the following gives
Any plans to add SVG support? Seems it would, if anything, be easier
than formatting ascii. You could then open it up and color/move stuff.
Any ideas about compatibility with graphviz(.org)? Maybe a .dot file
export?
I've considered making a .dot builder myself.
--
You received this message
This looks pretty nice - one question though: is there an API provided
that would let me build callbacks and structs programmatically - as
opposed to the declarative style of defclib?
Not currently but it's definetly doable. I already use clojure.asm to
generate classes on the fly.
I have
On Jan 25, 7:20 pm, Roman Roelofsen roman.roelof...@googlemail.com
wrote:
After playing around with clojureql I noticed how well the relational
data model maps to a functional language. Processing lists (result
sets), joining, filter, group by, etc. are ideas I found in both
worlds. I am
70 matches
Mail list logo
