Hi!
I've noticed that there is group-by in clojure 1.2. However it uses
reduce and conj.
Doesn't it consume all sequence at once?
Here I have lazy version I have written once:
(defn group-by
[input]
(lazy-seq
(when-let [s (seq input)]
(let [k (ffirst s
On Mon, May 24, 2010 at 05:41, Drew Colthorp wrote:
> A few weeks ago I announced a pattern matching library called
> matchure. I'm excited to say it's being merged into clojure.contrib as
> clojure.contrib.match. I'd like some feedback on ideas for some
> backward-incompatible changes I'm plannin
ka wrote:
Tim,
I don't know much about either lisp or latex :). But it looks like a
really neat idea at a first thought to me. Have two remarks-
1. From the developer's pov - I'm not sure how the developer, who is
accustomed to looking at just code + some comments, will manage
working with t
hello mike,
hello tim
thank you for this detailed insights into your experience
and knowledge.
lately i had to implement a generator for a big catalog of
products and i used docbook for it, but that was not a
satisfying experience at all. docbook locks you into
its predefined document-structures
Another view.
On 25 May 2010 07:25, ka wrote:
> Tim,
>
> I don't know much about either lisp or latex :). But it looks like a
> really neat idea at a first thought to me. Have two remarks-
> 1. From the developer's pov - I'm not sure how the developer, who is
> accustomed to looking at just cod
Hi,
I've just installed the Counterclockwise plugin and written a hello
world program in a file named "hello.clj"
---
(ns hello)
(defn "a method" method [args] (println "Hello" args))
-
Is there a library for generating PDF pages/reports with Clojure? (Or
a Java library that interoperates more naturally than others?)
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> I've noticed that there is group-by in clojure 1.2. However it uses
> reduce and conj.
> Doesn't it consume all sequence at once?
Yes. But then, it would have to:
-
clojure.contrib.seq/group-by
([f coll])
Returns a sorted map of the elements of coll keyed by the result
I'm happy to announce Clojure/core, a joint endeavor between myself
and Relevance, Inc. Clojure/core is a specialized technical practice
within Relevance, focused on Clojure. Featuring myself and Stuart
Halloway as advisors, the team also includes Clojure experts such as
David Liebke (Incanter), S
I am not enough of a functional programming / Clojure expert to
comment on which library would integrate best with Clojure.
However I have always found iText to be badly designed (even though
historically it has been the mindshare leader with most features)
Also the licence on iText is GPL 3 with
> I'm happy to announce Clojure/core, a joint endeavor between myself
> and Relevance, Inc.
Congratulations to everyone involved! Very exciting!
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On 24 May 2010 19:50, faenvie wrote:
> lately i had to implement a generator for a big catalog of
> products and i used docbook for it, but that was not a
> satisfying experience at all. docbook locks you into
> its predefined document-structures and is difficult to
> customize - i really hate th
(defn "a method" method [args] (println "Hello" args))
ok so im gonna gess that you should putt the docstring after the name
(defn method
"a method"
[args]
(println "hello" args))
2010/5/24 Shikhar
> Hi,
> I've just installed the Counterclockwise plugin and written a hello
> world program
Hi Shikhar -
I strongly recommend checking out the labrepl example created by stu
halloway. It is a great starting point for eclipse/counterclockwise
and helped me quite a bit as a framework for starting new projects.
http://github.com/relevance/labrepl
cheers.
On May 24, 10:08 am, Shikhar wr
woo hoo! Look forward to it.
On May 25, 7:48 am, Craig Andera wrote:
> > I'm happy to announce Clojure/core, a joint endeavor between myself
> > and Relevance, Inc.
>
> Congratulations to everyone involved! Very exciting!
>
> --
> You received this message because you are subscribed to the Googl
Thanks you! Just noticed that after publishing that post. The clojure
1.2 group-by doesn't require sequence to be ordered by a grouping key.
My func. is easy to modify to accept grouping selector and mapping
function for grouped sequence.
Thanks again.
On 25 Maj, 14:23, Craig Andera wrote:
> >
Hi Rich,
Still can't reply on that thread, but I was able to start this one.
"MVCC history in Clojure's STM is dynamic, created by need. There
is no
read tracking, and more important for this case, no transaction
tracking."
What's the issue with keeping a singly linked list of transa
There are several libraries that I have heard of. Here is a list of
several.
http://java-source.net/open-source/pdf-libraries
I have only tried out iText and FOP with mixed results.
On May 24, 5:22 pm, Jim Tittsler wrote:
> Is there a library for generating PDF pages/reports with Clojure? (
On Mon, 24 May 2010 11:50:41 -0700 (PDT)
faenvie wrote:
> hello mike,
> hello tim
>
> thank you for this detailed insights into your experience
> and knowledge.
>
> lately i had to implement a generator for a big catalog of
> products and i used docbook for it, but that was not a
> satisfying e
Hi :
(def a (cycle '(1 2 3 4)))
and
(= a (drop 4 a))
I suppose it would return true, but it cannot return.
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On May 25, 9:38 am, Peter wrote:
> Hi Rich,
>
> Still can't reply on that thread, but I was able to start this one.
>
> "MVCC history in Clojure's STM is dynamic, created by need. There
> is no
> read tracking, and more important for this case, no transaction
> tracking."
>
> What's
since cycle is an infinite sequence, it will keep running forever.
On Tue, May 25, 2010 at 11:05 AM, sailormoo...@gmail.com
wrote:
> Hi :
>
> (def a (cycle '(1 2 3 4)))
>
> and
>
> (= a (drop 4 a))
>
> I suppose it would return true, but it cannot return.
>
> --
> You received this message becaus
On May 25, 2010, at 7:30 AM, Rich Hickey wrote:
> Note: clojure.com will now resolve to the Clojure/core site. Come
> check it out!
Does this mean Clojure itself is to be directly associated with Relevance, Inc.?
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On 2010/05/21 15:32, Remco van 't Veer wrote:
> BTW the latest clojure may work on dalvik but probably won't due to
> issue #199[1]. Checkout my clojure fork[2] for an ancient version of
> clojure that does work on dalvik.
I just confirmed the current master branch does run on dalvikvm. See my
On May 25, 11:18 am, Michael Gardner wrote:
> On May 25, 2010, at 7:30 AM, Rich Hickey wrote:
>
> > Note: clojure.com will now resolve to the Clojure/core site. Come
> > check it out!
>
> Does this mean Clojure itself is to be directly associated with Relevance,
> Inc.?
>
Not at all. Clojure a
On 25 May 2010 15:04, Mike Meyer
wrote:
> On Mon, 24 May 2010 11:50:41 -0700 (PDT)
> faenvie wrote:
> A literate programming tool on the other hand only has to
> deal with one type of document - literate programs. So while such a
> tool might well be everything you're looking for, it might also
Hi Rich,
If you set up your object dependencies correctly then the objects you
want will stay in memory. Your history list would be a list of
WeakReference so it could be GC'd.
This is nothing about read tracking, more about setting the correct
object dependencies so that the GC doesn't remove ob
This seems to have been fixed in master at some point.
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Folks,
i would like advice,
cause since im starting something that will be eventually big data
intensive, from scratch
and i really like the options already built in in clojure like STM,
parallelizing data and concurrency logic implemented on it
i think its wonderfully tuned to use as database...
You might want to look at FleetDB
http://fleetdb.org/
http://github.com/mmcgrana/fleetdb
On May 25, 2:08 pm, Fabio Kaminski wrote:
> Folks,
>
> i would like advice,
> cause since im starting something that will be eventually big data
> intensive, from scratch
> and i really like the options alre
I agree with Meikel on this one. Java isn't the best language, but
they figured out how to package code in a way that makes it easy to
reuse - the JAR. Maven may not be the easiest thing in the world to
work with, but they got dependency management right.
clojure-contrib should probably be broke
Yes, I realized it immediately after send this post. :) Even with the
correction I could not get (method "world") to work in eclipse console
REPL.
I'm going to follow the http://github.com/relevance/labrepl link suggested
by another responder.
Thanks.
On Tue, May 25, 2010 at 7:59 AM, patrik karl
set the cursor somewhere in your (defn...) expression then press Ctrl
+ Alt + x (evaluate in REPL). After that you method call should work.
Matt
On May 24, 5:08 pm, Shikhar wrote:
> Hi,
> I've just installed the Counterclockwise plugin and written a hello
> world program in a file named "hello.
Hi Shikhar,
Please also note that by hitting F1 (windows) , Help (Mac) or Ctrl+F1
(Linux/GTK), while in the editor, you go to the help page from within
eclipse.
Regards,
--
Laurent
2010/5/25 Matthias von Rohr
> set the cursor somewhere in your (defn...) expression then press Ctrl
> + Alt + x
I'm experimenting w/ protocols * proxy (I have an Abstract Base Class
I need). So far everything is awesome, then I get some first rate
wierdness:
http://gist.github.com/413571
Why does me unit-div fn work right, but my unit-mult fn totally go
haywire?
Confused.
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I've made a small library for annotating Clojure programs with todo
statements during development. The library is inspired by the //TODO:
functionality in Eclipse and the fixme package in LaTeX.
To use the lib, simply use (or require) clj-todo, and use the todo
macro around your existing code.
(t
On Tue, 25 May 2010 15:33:20 -0400, Sean Devlin
wrote:
I'm experimenting w/ protocols * proxy (I have an Abstract Base Class
I need). So far everything is awesome, then I get some first rate
wierdness:
http://gist.github.com/413571
Why does me unit-div fn work right, but my unit-mult fn to
Ah, yeah, you're right. Thanks!
On May 25, 3:57 pm, "Hugo Duncan"
wrote:
> On Tue, 25 May 2010 15:33:20 -0400, Sean Devlin
> wrote:
>
> > I'm experimenting w/ protocols * proxy (I have an Abstract Base Class
> > I need). So far everything is awesome, then I get some first rate
> > wierdness:
Congratulation!
This is an especially great news for full time clojure programmers.
It gives me an additional biz points when selling clojure to
customers.
On May 25, 8:30 am, Rich Hickey wrote:
> I'm happy to announce Clojure/core, a joint endeavor between myself
> and Relevance, Inc. Clojure/c
May have found a bug, here is how to duplicate it. Hopefully someone
can confirm this.
Here is expected behavior when run in the repl:
Clojure 1.2.0-master-SNAPSHOT
user=> (ns foo)
nil
foo=> (defmacro f []
`(eval `(def ~'~'x 'foo)))
#'foo/f
foo=> (ns bar)
nil
bar=> (defn b []
(foo/f))
#'bar/b
ba
On 05/25/2010 01:36 PM, Sean Devlin wrote:
> You might want to look at FleetDB
>
> http://fleetdb.org/
> http://github.com/mmcgrana/fleetdb
I have not found the system to be incredibly well documented, but I have
discovered that if you want to embed fleetdb in your app, you will need
(use 'fleet
Hi there
I built a simple csv parsing library[1] last weekend which I want to
show you guys. It follows the RFC 4180[2] pretty closely but it allows
for any character as separator and quote mark. It would be great if
someone would take time and read the code. I would like to know:
a) Can performa
Hi,
On May 26, 12:17 am, Brent Millare wrote:
> ^^ That should read #'bar/x instead of #'user/x
No. foo/f expands into a macro calling eval on a def. This eval
is put into a function bar/b. When you call the function the
namespace "in charge" is user. So everything is correct.
Usual disclaimer
Hi Meikel,
Well if #'user/x is the correct behavior, then the repl behavior needs
to be fixed. Either one may be "correct" but that does not explain the
discrepancy. Also I agree that eval should be avoided, but I found an
extreme case where it was necessary (due to the desired side effect of
star
Ah wait, I may have read that wrong. So what I understand is because I
am calling it from the the -e, it is ran in the user ns. Ok that makes
sense.
On May 26, 2:28 am, Brent Millare wrote:
> Hi Meikel,
>
> Well if #'user/x is the correct behavior, then the repl behavior needs
> to be fixed. Eith
Hi,
On May 26, 8:35 am, Brent Millare wrote:
> Ah wait, I may have read that wrong. So what I understand is because I
> am calling it from the the -e, it is ran in the user ns. Ok that makes
> sense.
Exactly! And in the Repl you are still in the bar namespace.
Doing a (in-ns 'user) and then cal
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