Konrad Hinsen a écrit :
> On 03.03.2009, at 00:53, Laurent PETIT wrote:
>
>
>> I'm able to do that from the REPL when done one by one :
>> (clojure.core/ns-unmap *ns* (quote filter))
>> (clojure.core/defn filter [] "oh my!")
>>
>> thus correctly redefining the binding of filter for the rest of
So there we are with a version of defn, which I called defn! because it is
even more agressive than defn in its side effects, that could solve your
problem :
(defmacro defn!
"Like defn, but first ensures that if name is bound to something (e.g. the
name of a function
in a 'used' or 'required'
Now that I rethink about it, wouldn't this version using eval be less than
ideal as far as AOT compilation is concerned ?
2009/3/3 Laurent PETIT
> So there we are with a version of defn, which I called defn! because it is
> even more agressive than defn in its side effects, that could solve your
On 02.03.2009, at 19:52, Konrad Hinsen wrote:
> At first look it seems your simplified version is indeed equivalent.
> I will look at it again tomorrow after a good night's sleep :-)
At second look, I still agree, so I update the implementation in
clojure.contrib.monads.
Konrad.
--~--~-
On 27.02.2009, at 15:14, Itay Maman wrote:
> Revision 148 is available for download at
> http://sourceforge.net/project/platformdownload.php?group_id=249246
> It addresses some of the requests that were raised in this discussion:
>
> * Changed default location of the divider
> * Fixed the "comman
Please forgive about this defn! macro, it does not seem to play well in
practice.
I now share Konrad's thoughts : I don't know if what he want is feasible
without changes in clojure, or use of clojure non-public APIs.
2009/3/3 Laurent PETIT
> Now that I rethink about it, wouldn't this version u
If you pull trunk out of subversion you can build it locally with Ant.
Would that do it?
https://waterfront.svn.sourceforge.net/svnroot/waterfront/trunk
Cheers
Tom
2009/3/3 Konrad Hinsen
>
> On 27.02.2009, at 15:14, Itay Maman wrote:
>
> > Revision 148 is available for download at
> > http:/
Here's a little toy to practice my basic Clojure skills. I didn't see
any similar topic in the archives, so here we go...
This code performs conversions between Roman and Arabic numerals.
Roman numerals are represented as strings and Arabic numerals are
just integers. Arabic numerals in the
On Mar 2, 8:40 pm, Mark Volkmann wrote:
> On Mon, Mar 2, 2009 at 7:05 PM, Chouser wrote:
>
> > On Mon, Mar 2, 2009 at 7:53 PM, Mark Volkmann
> > wrote:
>
> >> Currently what the article says about Vectors is "They are ideal when
> >> items need to be retrieved by index, but not efficient whe
I'm just larning Clojure and have been able to figure out everything
so far via trial-and-error. However, I cannot for the LIFE of me
figure out how to compile anything. I have tried every possible setup
I can think of and I all I have is a sneaking suspicion that its a
Vista issue.
Below I hav
On Tue, Mar 3, 2009 at 6:22 AM, Rich Hickey wrote:
>
> On Mar 2, 8:40 pm, Mark Volkmann wrote:
>> On Mon, Mar 2, 2009 at 7:05 PM, Chouser wrote:
>>
>> > On Mon, Mar 2, 2009 at 7:53 PM, Mark Volkmann
>> > wrote:
>>
>> >> Currently what the article says about Vectors is "They are ideal when
>>
On Mon, Mar 2, 2009 at 8:45 PM, MikeM wrote:
>
>> At the end of the Vectors section I say this:
>> "All the code examples provided above for lists also work for vectors."
>>
>> Do you think I should provide more detail than that?
>
> I missed that sentence. I think it's helpful to know that some
On Tue, Mar 3, 2009 at 12:58 AM, zodoz wrote:
>
> I'm just larning Clojure and have been able to figure out everything
> so far via trial-and-error. However, I cannot for the LIFE of me
> figure out how to compile anything. I have tried every possible setup
> I can think of and I all I have is
Hi folks;
I have an intermittent problem that's driving me nuts.
I'm running the emacs-starter-kit setup for editing clojure, recently
updated from git, and when I first run "M-x slime", I often get the
following messages:
user=> user=> java.lang.IllegalArgumentException: URI has an authority
com
On Mar 3, 1:58 am, Raffael Cavallaro
wrote:
> On Mar 2, 10:41 pm, Jeffrey Straszheim
> wrote:
>
> > First off, Clojure is not Common Lisp (to say the least), so I don't think
> > we necessarily need to create as stateful a library as the original Cells.
> > I've used Cells-like architectures b
On Mar 2, 10:41 pm, Jeffrey Straszheim
wrote:
> There are a lot of "toy" cells implementations for Clojure, but as far as I
> can tell none of them are really full-production ready libraries like K.
> Tilton's. I'm planning on starting a GUI based project and something cell's
> like would be v
>
> The only function I could find that takes a vector and returns a list
> instead of a vector or a sequence is the reverse function. Are there
> others?
Map and other lazy functions currently return a LazySeq -
(map #(+ %) [1 2 3]) => (2 3 4)
cons currently returns a Cons type -
(cons 0 [1 2
On Mar 3, 1:04 pm, Rich Hickey wrote:
> I think it is important to embrace asynchrony and concurrency as
> Clojure does. Any Cells-for-Clojure that presumes the world is a
> single synchronous chain of events would be a misfit. The whole notion
> of a 'current step' is suspect.
I'd appreciate it
On Mar 3, 2009, at 11:46, Tom Ayerst wrote:
> If you pull trunk out of subversion you can build it locally with
> Ant. Would that do it?
Definitely, thanks! I pulled the latest revision and built it by
typing "ant". No compilation errors, but I can't run it either:
Can't load plugin custo
On Mar 3, 4:46 am, Korny Sietsma wrote:
> Hi folks;
>
> I have an intermittent problem that's driving me nuts.
> I'm running the emacs-starter-kit setup for editing clojure, recently
> updated from git, and when I first run "M-x slime", I often get the
> following messages:
> user=> user=> java.l
On Tue, Mar 3, 2009 at 6:40 AM, David Sletten wrote:
>
> I'd appreciate any feedback regarding my Clojure style. Any more
> natural ways to do things?
Looks good, thanks for sharing.
> (defn roman? [roman-string]
> (and (not (empty? roman-string))
> (re-matches
> #"(?:M{0,3})(?
Does this seem like a good way to choose between doall, dorun, doseq
and for to evaluate all the items in sequences?
Ask these questions:
Do you already have the lazy sequence in a variable or do you still
need to build it?
If you already have it, use dorun or doall. Otherwise use doseq or for.
Hello Mark,
Just one point :
2009/3/3 Mark Volkmann
>
> Does this seem like a good way to choose between doall, dorun, doseq
> and for to evaluate all the items in sequences?
>
> Ask these questions:
>
> Do you already have the lazy sequence in a variable or do you still
> need to build it?
> I
On Tue, Mar 3, 2009 at 9:12 AM, Laurent PETIT wrote:
> Hello Mark,
>
> Just one point :
>
> 2009/3/3 Mark Volkmann
>>
>> Does this seem like a good way to choose between doall, dorun, doseq
>> and for to evaluate all the items in sequences?
>>
>> Ask these questions:
>>
>> Do you already have th
On Mar 3, 8:04 am, Rich Hickey wrote:
> If B and C depend on A in such
> a way that their values must be coordinated in order to be valid and
> consistent, then maybe they shouldn't independently depend on A,
> instead a transaction should fire on changes to A, which in turn
> updates B and C
2009/3/3 Mark Volkmann
>
> On Tue, Mar 3, 2009 at 9:12 AM, Laurent PETIT
> wrote:
> > Hello Mark,
> >
> > Just one point :
> >
> > 2009/3/3 Mark Volkmann
> >>
> >> Does this seem like a good way to choose between doall, dorun, doseq
> >> and for to evaluate all the items in sequences?
> >>
> >>
Access to the previous value is an interesting idea. I'm thinking of
putting together a lib where all updates are collection into
transactions (which would run *inside* of Clojure transactions, but
would have their own semantics also). Something like this:
(update-model
(update x 3)
(upda
I've actually been looking at Rete. However, for my present purposes
I want something that just does computation dependency graphs. Rete
is way heavier than I'm currently thinking.
On Mar 3, 8:12 am, Rich Hickey wrote:
> On Mar 2, 10:41 pm, Jeffrey Straszheim
> wrote:
>
>
>
> > There are a lo
I've actually been looking at Rete. However, for my present purposes
I want something that just does computation dependency graphs. Rete
is way heavier than I'm currently thinking.
On Mar 3, 8:12 am, Rich Hickey wrote:
> On Mar 2, 10:41 pm, Jeffrey Straszheim
> wrote:
>
>
>
> > There are a lo
I'm pretty sure I don't want an agent based model. I want clear
transactional semantics. However, there is no reason both should not
exist.
On Mar 3, 9:11 am, Anand Patil
wrote:
> On Mar 3, 1:04 pm, Rich Hickey wrote:
>
> > I think it is important to embrace asynchrony and concurrency as
> >
RE: Side Effects
What about logging? Without a debugger I use lots of print's to debug
my code... and that often produces confusing results as things may not
get evaluated in the order I expect.
For that matter, now that we have integrated Java debuggers, what does
setting a breakpoint real
On Tue, Mar 3, 2009 at 10:03 AM, Mark Volkmann
wrote:
>
> Does this seem like a good way to choose between doall, dorun, doseq
> and for to evaluate all the items in sequences?
>
> Ask these questions:
>
> Do you already have the lazy sequence in a variable or do you still
> need to build it?
> I
*sigh*... Still no joy. I've looked around for how to use the
command and I finally got it to stop giving me directory permission
errors, but Java still does not seem to be liking it. I am now
running it with "java -classpath .;src;classes -jar clojure.jar", but
when I run (compile 'test) or (c
On Mar 3, 3:22 pm, Raffael Cavallaro
wrote:
> On Mar 3, 8:04 am, Rich Hickey wrote:
>
> > If B and C depend on A in such
> > a way that their values must be coordinated in order to be valid and
> > consistent, then maybe they shouldn't independently depend on A,
> > instead a transaction shou
You cannot have both a classpath full of jars and directories (via the -cp
option) and run directly from a jar.
Try java -classpath .;src;classes;clojure.jar clojure.main" instead
(http://clojure.org/repl_and_main)
2009/3/3 zodoz
>
> *sigh*... Still no joy. I've looked around for how to use
Hi,
Am 03.03.2009 um 16:42 schrieb Chouser:
If you have a lazy sequence with side-effects, you almost certainly
don't want to let it out of your sight. You're likely to get very
strange behavior unless you're exceedingly careful. Most likely, if
you've got a lazy seq with side effects you sho
On Mar 3, 10:45 am, Anand Patil
wrote:
> Cells don't update until all of their parents have reported in, ie
> reached the current step.
This bit is important (i.e., no update until all parents are current)
and
constitutes an implicit notion of current step.
It still doesn't get you time lags
2009/3/3 Meikel Brandmeyer
> Hi,
>
> Am 03.03.2009 um 16:42 schrieb Chouser:
>
> If you have a lazy sequence with side-effects, you almost certainly
>> don't want to let it out of your sight. You're likely to get very
>> strange behavior unless you're exceedingly careful. Most likely, if
>> yo
On Mar 3, 3:38 pm, Jeffrey Straszheim
wrote:
> I'm pretty sure I don't want an agent based model. I want clear
> transactional semantics. However, there is no reason both should not
> exist.
I think you can get solid transactions with lazy agents, since an
update corresponds to a single step/d
Hi Laurent,
Am 03.03.2009 um 17:03 schrieb Laurent PETIT:
Why should there ever be the need to call dorun?
If you still want to force a veeerry long seq for side effect,
without fearing to face an OutOfMemory error ?
(let [some-lng-seq ]
(dorun some-lng-seq)
...)
H
On Tue, Mar 3, 2009 at 10:56 AM, Meikel Brandmeyer wrote:
>>
>> This means that dorun should almost always show up right next to the
>> form producing the lazy seq, which means doseq is very likely a better
>> choice, as it is more efficient and usually more succinct than dorun
>> combined with a
Correct. It seems that we are agreeing that we agree :-)
2009/3/3 Meikel Brandmeyer
> Hi Laurent,
>
> Am 03.03.2009 um 17:03 schrieb Laurent PETIT:
>
> Why should there ever be the need to call dorun?
>>>
>>
>>
>> If you still want to force a veeerry long seq for side effect, without
>> fearing
I don't think I gain anything here, however, over just updating the graph in
a dosync block, except I add a bunch of asynchronicity that I then have to
block to avoid. With agents it also becomes more difficult to do static
analysis on the graph.
On Tue, Mar 3, 2009 at 11:12 AM, Anand Patil <
ana
Konrad,
Your installation is probably fine. The problem lies in the
FileNameExtensionFilter class. It was only introduced in Java6.
Therefore, despite the fact
that you now have binaries that are compatible with your JVM, the
program does not run. I'll try to fix this soon. I'll post a message
w
On Mar 2, 10:41 pm, Jeffrey Straszheim
wrote:
> There are a lot of "toy" cells implementations for Clojure, but as far as I
> can tell none of them are really full-production ready libraries like K.
> Tilton's. I'm planning on starting a GUI based project and something cell's
> like would be ver
Same thing. I even tried putting (compile 'test.test) in the src/test/
test.clj file and loading it with "java -
classpath .;src;classes;clojure.jar clojure.main src/test/test.clj".
If it helps, the full error I am getting now is:
java.io.IOException: The system cannot find the path specified
(t
Warning: if you're using a clone of my Git repository, you will
probably need to reclone from scratch, otherwise things will no longer
work. Because of some changes in the upstream Buildr SVN repository,
everybody on the project has been doing a ton of rebasing lately.
This means that the latest
Itay,
> Alternatively hoping that this is the only Java6-only dependency in
> the code, you can also apply this patch to clj/net/sourceforge/
> waterfront/ide/plugins/file.clj (I didn't test is though - I am away
> from my machine, so no warranty...)
Thanks for the quick fix, it works!
I can no
Small questions on error-kit—which I love and think that all clojure-
contrib libraries should use—why do defined errors such as *error*,
*number-error*, etc. have names surrounded by asterisks? According to
this thread—http://groups.google.com/group/clojure/browse_thread/
thread/65d98eda2d1154b2—
On Tue, Mar 3, 2009 at 9:42 AM, Chouser wrote:
>
> If you have a lazy sequence with side-effects, you almost certainly
> don't want to let it out of your sight. You're likely to get very
> strange behavior unless you're exceedingly careful. Most likely, if
> you've got a lazy seq with side effe
Hi,
I'm using linux (Ubuntu) and none of the above scripts worked for me.
I added the ${DP}/bin directory to the classpath list to get it to
work.
#!/bin/sh
DP="${0%/*}"
java -cp ~/src/clojure/clojure.jar:${DP}/clj:${DP}/java -
Dnet.sourceforge.waterfront.plugins=${DP}/clj/net/sourceforge/
water
Hi Christophe Grand or other contrib committers,
clojure.contrib.javadoc should be removed from the list of libs to
compile in the build.xml file; as it stands, building with ant throws
the Exception that fires when c.c.javadoc is compiled.
Best,
Perry
--~--~-~--~~~--
Hi Christophe Grand or other contrib committers,
clojure.contrib.javadoc should be removed from the list of libs to
compile in the build.xml file; as it stands, building with ant throws
the Exception that fires when c.c.javadoc is compiled.
Best,
Perry
Fixed. Thanks for the report!
--Steve
I've written a small example of Conway's Game of Life using Clojure
and Swing. Comments/critiques are welcome.
http://lpsherrill.blogspot.com/2009/02/conways-game-of-life.html
Thanks,
Larry
--~--~-~--~~~---~--~~
You received this message because you are subscribe
lps540 writes:
> I've written a small example of Conway's Game of Life using Clojure
> and Swing. Comments/critiques are welcome.
Interesting program!
(for [x (range 32) y (range 48)]
(ref-set cells
(assoc (deref cells) [x y] (= 0 (rand-int 5)
While
There is a problem with the latest Clojure SVN version. Try running in
clojure-contrib: ant test_clojure
It generates failures and errors. There is some confusion between
"nil" and "()" by the reader/compiler it seems.
Also:
user=> (pop '(1 2 3))
java.lang.ClassCastException: clo
Hi Phil,
Thanks for the tips. Yes, alter and doseq do look better.
As far as the "running" variable, there is one thread painting the
squares and another thread responding to the mouse click on start/
stop. This was the only way I could think of that the user could stop
the paint thread, using a
Adler, Konard:
Thank you guys for the patches.
-Itay
On Mar 3, 9:14 pm, aperotte wrote:
> Hi,
>
> I'm using linux (Ubuntu) and none of the above scripts worked for me.
> I added the ${DP}/bin directory to the classpath list to get it to
> work.
>
> #!/bin/sh
> DP="${0%/*}"
> java -cp ~/src/clo
On Tue, Mar 3, 2009 at 2:03 PM, lps540 wrote:
>
> I've written a small example of Conway's Game of Life using Clojure
> and Swing. Comments/critiques are welcome.
>
> http://lpsherrill.blogspot.com/2009/02/conways-game-of-life.html
The paint-cells function can be shorted by using doseq and destr
On Mar 3, 2009, at 3:39 PM, Frantisek Sodomka wrote:
There is a problem with the latest Clojure SVN version. Try running in
clojure-contrib: ant test_clojure
I confirmed that r1321 passes the tests and r1322 fails.
To run the tests, I use:
cd /the/path/to/my/clojure-contrib
a
On Tue, Mar 3, 2009 at 2:03 PM, lps540 wrote:
>
> I've written a small example of Conway's Game of Life using Clojure
> and Swing. Comments/critiques are welcome.
Instead of all the uses of (- x 1), (- y 1), (+ x 1) and (+ y 1), I
think it's more idiomatic to use (dec x), (dec y), (inc x) and (i
On Mar 3, 2009, at 3:03 PM, lps540 wrote:
I've written a small example of Conway's Game of Life using Clojure
and Swing. Comments/critiques are welcome.
Very nice example!
Here's a more compact determine-new-state:
(defn determine-new-state [x y]
(let [count (reduce + (for [dx [-1 0 1] dy
I found the solution (though I'm still in the process of understanding
why it works):
java -cp clojure.jar;.\src;.\classes clojure.lang.Repl
user=> (compile 'test.test)
On Mar 3, 10:56 am, zodoz wrote:
> Same thing. I even tried putting (compile 'test.test) in the src/test/
> test.clj file and
Hi!
Are you using the release version from clojure.org? I remember this
one having a strange *compile-path* default when started as
clojure.main (something like "/Users/rich/..."), but defaulting to
"classes" when started as clojure.lang.Repl ...
Kind regards,
achim
Am 03.03.2009 um 22:2
Hello,
Chouser has commented extensively, so I'll just put in my two cents.
On Mar 3, 6:40 am, David Sletten wrote:
>
> Incidentally, the "cond" form in roman-to-arabic-aux seems to me
> harder to read in Clojure than it would be in CL with its additional
> set of grouping parentheses. When
On Mar 3, 3:58 pm, "Stephen C. Gilardi" wrote:
> On Mar 3, 2009, at 3:39 PM, Frantisek Sodomka wrote:
>
> > There is a problem with the latest Clojure SVN version. Try running in
> > clojure-contrib: ant test_clojure
>
> I confirmed that r1321 passes the tests and r1322 fails.
>
> To run the te
Thanks - that seemed to fix it!
- Korny
On Wed, Mar 4, 2009 at 1:34 AM, Bradbev wrote:
>
> On Mar 3, 4:46 am, Korny Sietsma wrote:
>> Hi folks;
>>
>> I have an intermittent problem that's driving me nuts.
>> I'm running the emacs-starter-kit setup for editing clojure, recently
>> updated from
I've done some more work on Clojure + Terracotta. I moved my code into
a Terracotta Integration Module (TIM), which allows the bundling and
reuse of the Terracotta configuration, but also provides for class
replacement so that clustered versions of some classes can be written
without necessarily h
Thanks everyone for the suggestions. Very helpful.
On Mar 3, 2:03 pm, "Stephen C. Gilardi" wrote:
> On Mar 3, 2009, at 3:03 PM, lps540 wrote:
>
> > I've written a small example of Conway's Game of Life using Clojure
> > and Swing. Comments/critiques are welcome.
>
> Very nice example!
>
> Here's
Hello Larry,
is there a reason why the code of this port of Game of Life does not seem to
be under an open source license (e.g. EPL, etc.) ?
I was interested in playing with your code, but I'm a bit reluctant when I
see an "all rights reserved" in the top of the file ...
It seems to me like your
On Mar 3, 2009, at 4:03 PM, Stephen C. Gilardi wrote:
(defn determine-new-state [x y]
(let [count (reduce + (for [dx [-1 0 1] dy [-1 0 1]]
(if (cells [(+ x dx) (+ y dy)]) 1 0)))]
(or (and (cells [x y]) (> count 2) (< count 5))
(= count 3
I'm guessing
On Tue, Mar 3, 2009 at 2:54 PM, Mark Volkmann wrote:
>
> I agree that using doseq instead of dorun results in code that is
> easier to read. I don't understand though why it is more efficient.
> They both walk the entire sequence, neither holds onto the head and
> both return nil. Why is doseq mo
On Tue, Mar 3, 2009 at 2:10 PM, samppi wrote:
>
> Small questions on error-kit—which I love and think that all clojure-
> contrib libraries should use—why do defined errors such as *error*,
> *number-error*, etc. have names surrounded by asterisks?
Thanks for the endorsement! Have you used cont
I appreciate that they stand out. Again, this is similar to the constants
conversation earlier, visually marking the intended use is a good habit,
IMHO. Of course this doesn't mean that error-kit should define the base
error this way, but I intend to keep on wrapping my errors in earmuffs :)
Davi
On Tue, Mar 3, 2009 at 10:36 PM, David Nolen wrote:
> I appreciate that they stand out. Again, this is similar to the constants
> conversation earlier, visually marking the intended use is a good habit,
> IMHO. Of course this doesn't mean that error-kit should define the base
> error this way,
Just because there is always another way :P
(defn determine-new-state [x y]
(let [alive (count (for [dx [-1 0 1] dy [-1 0 1]
:when (cells [(+ x dx) (+ y dy)])]
:alive))]
(if (cells [x y])
(< 2 alive 5)
(= alive 3
--~--~--
> Am I "over interpreting" the meaning of the copyright clause at the top of
> the published code ?
Yes. I hesitated to put it there but went ahead out of habit. :> I'll
either remove it or stick some minimal open source license on it.
Thanks for pointing that out.
On Mar 3, 4:53 pm, Laurent PE
capitals seems pretty weird for a Lisp. Now that I think about it, perhaps
foo-error isn't so bad.
David
On Tue, Mar 3, 2009 at 10:54 PM, Chouser wrote:
>
> On Tue, Mar 3, 2009 at 10:36 PM, David Nolen
> wrote:
> > I appreciate that they stand out. Again, this is similar to the
> constants
> >
On Mar 3, 2009, at 11:01 PM, Timothy Pratley wrote:
Just because there is always another way :P
(defn determine-new-state [x y]
(let [alive (count (for [dx [-1 0 1] dy [-1 0 1]
:when (cells [(+ x dx) (+ y dy)])]
:alive))]
(if (cells [x y])
Stephen C. Gilardi a écrit :
>> Hi Christophe Grand or other contrib committers,
>>
>> clojure.contrib.javadoc should be removed from the list of libs to
>> compile in the build.xml file; as it stands, building with ant throws
>> the Exception that fires when c.c.javadoc is compiled.
>>
>> Best,
>
On Tue, Mar 3, 2009 at 9:14 PM, aperotte wrote:
>
> Hi,
>
> I'm using linux (Ubuntu) and none of the above scripts worked for me.
> I added the ${DP}/bin directory to the classpath list to get it to
> work.
>
> #!/bin/sh
> DP="${0%/*}"
> java -cp ~/src/clojure/clojure.jar:${DP}/clj:${DP}/java -
>
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