Hi!
I have been programming in clojure for a few months now. I really like
the language.
Something that I have noted is that it is very easy to write slow
Clojure code.
After doing some programming and spending time optimizing things, I
decided to write on my blog some points on how to write
Any news on this item? Does what I'm saying make sense?
I understand most people who use clojure are probably English-speaking
and couldn't care less about internationalization, but this has to be
addressed if clojure is to get any semblance of semi-mainstream
adoption. In fact, one of the
On Fri, Mar 13, 2009 at 2:18 AM, Sergio bigmonac...@gmail.com wrote:
There are a couple of obvious ones, but also some others that I
haven't seen documented (like, map is much faster on lists than on
vectors since rest is O(1) for lists).
You're right that 'rest' is O(1) for lists, but it's
On Fri, Mar 13, 2009 at 8:46 AM, max3000 maxime.lar...@gmail.com wrote:
Any news on this item? Does what I'm saying make sense?
I understand most people who use clojure are probably English-speaking
and couldn't care less about internationalization, but this has to be
addressed if clojure
Sorry =( I am horribly mistaken
I should have taken my time before posting..
But still, I really thought cons on vectors was O(n) base on
PersistentVector.java, line 148 (The version I'm reading is not the
current SVN head, so I don't know if it is that line for you)
Here is the snippet:
Jerry K jerryk...@gmail.com writes:
Hi Jerry,
Glad your problem is resolved. Miller-Rabin is quite zippy... and
practical for real use. If you want a next cool exercise to take a
crack at, the direction one often goes is to improve the speed of the
underlying multiplications using the
I paste below what I got. It's doing something for sure, but just for
*out* I think.
Thanks.
user= (println abcd)
����abcd
nil
user= (binding [*in* (new LineNumberingPushbackReader (new
InputStreamReader
System/in))
*out* (new OutputStreamWriter System/out)]
(println
Is it fair to say that Clojure shines in algorithmic processing, string
processing, concurrency management, but that there are better choices in
other areas:
not an answer, but a follow-on question: how well does clojure
currently support multimedia programming? i realize it supports it to
In my environment, same error occurs ... although I have erased
Gorilla and previous vimclojure packages. I install it using my
installer script. If wrong, let me know.
--
#!/bin/sh
# installer.sh - a simple vimclojure installer.
# Please rewrite CLOJURE, CLOJURECONTRIB and VIMCLOJUREHOME.
#
list doesn't do what you think it does. You've just created a list of
one element.
On Fri, Mar 13, 2009 at 12:10 AM, Sergio bigmonac...@gmail.com wrote:
(def ls (list (range 100)))
--~--~-~--~~~---~--~~
You received this message because you are subscribed
I think the could be a problem in generating your path in .vimrc. Try...
let vimclojure#NailgunClient='/your_path/vimclojure-2.0.0/ng'
and don't forget also for .vimrc
let g:clj_want_gorilla = 1
Rgds, Adrian.
On Fri, Mar 13, 2009 at 2:09 AM, Yasuto TAKENAKA y.taken...@gmail.com wrote:
In my
Thanks Meikel, this is really useful!
I noticed that the C-Up and C-Down key bindings used for the
history navigation work fine in MacVim.app, but not from the terminal
in OS X.
So for any VimClojurians on OS X with the same problem, suggested
workarounds:
- use MacVim.app, or
- add alternative
On Fri, Mar 13, 2009 at 7:49 AM, Chouser chou...@gmail.com wrote:
On Fri, Mar 13, 2009 at 2:18 AM, Sergio bigmonac...@gmail.com wrote:
There are a couple of obvious ones, but also some others that I
haven't seen documented (like, map is much faster on lists than on
vectors since rest is
Christian Vest Hansen a écrit :
I think that count is O(n) for lists, no?
Count is O(1) for lists but O(n) for a chain of conses.
Clojure
user= (let [l (apply list (range 10))] (time (dotimes [_ 100]
(count l
Elapsed time: 169.710116 msecs
nil
user= (let [l (apply list (range
Hi,
Am 13.03.2009 um 05:51 schrieb rzeze...@gmail.com:
1) In the preview window it says Use \p to close this buffer!, but I
have m LocalLeader mapped to ,. I'm guessing maybe you hardcoded
this by accident?
Yes. I should read the maplocalleader option to show the right key.
Will be fixed.
OK, so I think the consensus is on the names .?. and -? . No problem with
me.
I'm willing to write the patch, but which patch ? I mean, do these macros
deserve their own file (maybe not) ?
Maybe adding them to the existing clojure.contrib.macros ?
Or else, I was thinking about creating a new file
On 12 Mrz., 07:48, tristan tristan.k...@gmail.com wrote:
my clojure version
http://github.com/tristan/project-euler-code/blob/4a17bc271b4b2743ee1...
Not about speed, but about readability:
(loop [c primes n #{}]
(let [r (loop [b primes n n]
(let [r (loop [a primes n n]
...)))
You
Hi,
Am 13.03.2009 um 09:08 schrieb MattH:
I noticed that the C-Up and C-Down key bindings used for the
history navigation work fine in MacVim.app, but not from the terminal
in OS X.
I don't use Vim in a terminal anymore. The I don't do much testing
there.
So for any VimClojurians on OS
here is some background info on the change:
http://groups.google.com/group/clojure/browse_thread/thread/123ef17d7c650018/e1da76a4a273aa5a
max3000 a écrit :
The default character set on WinXP (which I use) is windows-1252
(cp1252). Check out http://www.rgagnon.com/javadetails/java-0505.html.
It wont solve your performance problem but I think that your python code
translates to:
(defn f[a b c]
(+ (* c c c c) (* b b b) (* a a)))
(count
(into #{}
(for [c primes :while ( (f (first primes) (first primes) c) limit)
b primes :while ( (f (first primes) b c) limit)
Hi folks - are there any frameworks out there for mocking?
Stubbing functions is pretty straightforward (and I see that fact comes with
a stubbing function built in), but I'd really like something that can do
mocking and mock expectations - something similar to stub, but with checking
that the
On Fri, Mar 13, 2009 at 2:50 AM, Adrian Cuthbertson
adrian.cuthbert...@gmail.com wrote:
I think the could be a problem in generating your path in .vimrc. Try...
let vimclojure#NailgunClient='/your_path/vimclojure-2.0.0/ng'
and don't forget also for .vimrc
let g:clj_want_gorilla = 1
I
I come across some functions in clojure/core that are really useful in
tool building but often are private.
Is it possible to make these public?
spread
assert-args
sigs
libspec?
root-resource
root-directory
Let me know and I'll submit a patch.
Thanks,
Eric
Hi Mark, I'm also running on OSX 10.5. I couldn't get it working with
the vim that comes with leopard - vim version 7.0.x
I first downloaded and tried MacVim 7.2 from
http://code.google.com/p/macvim/ but I couldn't unpack the .tbz files.
I then tried the Vim.app 7.2 from
On Mar 13, 2009, at 8:19 AM, Eric Thorsen wrote:
I come across some functions in clojure/core that are really useful in
tool building but often are private.
Is it possible to make these public?
An alternative to private that I've used in some of my contribs is to
have a separate namespace
Since this is a thread on VimClojure. First of all to say I am looking
forward to vimclojure working perfectly. Here are some problems I don't
understand:
If I open a .clj file without the ng server running, it complains loudly
and does not switch on syntax highlighting for clojure. Why no
On Fri, Mar 13, 2009 at 7:27 AM, Adrian Cuthbertson
adrian.cuthbert...@gmail.com wrote:
Hi Mark, I'm also running on OSX 10.5. I couldn't get it working with
the vim that comes with leopard - vim version 7.0.x
I first downloaded and tried MacVim 7.2 from
http://code.google.com/p/macvim/ but
Well! You learn something new every day.
Ironically, I knew about octal, but back in the day when I was
learning Java, the book I was reading didn't have a typeface that
distinguished O and 0 very well, and since I never had to use them I
never was corrected. Interesting.
Thanks!
On Mar 12,
On Mar 13, 1:19 pm, Eric Thorsen ethor...@enclojure.org wrote:
I come across some functions in clojure/core that are really useful in
tool building but often are private.
Is it possible to make these public?
I'm using the following hack to access private functions (for example
generate-class
On Fri, Mar 13, 2009 at 2:14 PM, Luke VanderHart
luke.vanderh...@gmail.com wrote:
Well! You learn something new every day.
Ironically, I knew about octal, but back in the day when I was
learning Java, the book I was reading didn't have a typeface that
distinguished O and 0 very well, and
On Mar 13, 2009, at 3:07 AM, Michael Wood wrote:
This is pretty standard behaviour.
On the other hand, it's not universal.
sbcl:
* 07
7
* 08
8
Common Lisp uses a separate syntax for binary/octal/hex literals. Legal:
#b1011, #o377, #xDEADBEEF, #36rZZZ (Base 36 anyone?)
Illegal:
Do you try to run the command, ./ng
de.kotka.vimclojure.nails.NamespaceOfFile ?
The following is the result when I tried to run this after starting a
ngserver:
cd your-vimcljure-directory
./ng de.kotka.vimclojure.nails.NamespaceOfFile
java.lang.ClassNotFoundException:
Hi Albert,
Am 13.03.2009 um 13:42 schrieb Albert Cardona:
If I open a .clj file without the ng server running, it complains
loudly
and does not switch on syntax highlighting for clojure. Why no
syntax on?
This happens for me if I open a file via the NerdTree plugin.
I'm not sure why this
Hi,
Am 13.03.2009 um 13:45 schrieb Mark Volkmann:
Hi Mark, I'm also running on OSX 10.5. I couldn't get it working with
the vim that comes with leopard - vim version 7.0.x
So this casts a new light on the problem. It appears to be specific to
the vim that is a standard part of Mac OS X.
pmf a écrit :
On Mar 13, 1:19 pm, Eric Thorsen ethor...@enclojure.org wrote:
I come across some functions in clojure/core that are really useful in
tool building but often are private.
Is it possible to make these public?
I'm using the following hack to access private functions
I've been struggling with the same issues (on Windows, not that it
appears to matter).
The line 23 in the error means the 23rd line of the function
vimclojure#ExecuteNailWithInput(nail, input, ...) in vimfiles/autoload/
vimclojure.vim. It's unrelated to the code you're trying to execute.
I dug
I've seen discussions over time suggesting that Clojure's readability
is enhanced by having more bracketing characters in play that just
parentheses. I agree with that.
I recall Chouser (corrections welcome) noting that in Clojure code,
parentheses are used primarily for forms
On Mar 13, 10:05 am, Stephen C. Gilardi squee...@mac.com wrote:
Should we consider changing the canonical form for ns to use vectors
for all of its sequential sub-forms?
One thing to consider: ns is a bit special,
because :import/:use/:require/:load mimic the syntax and behavior of
the
Hi Meikel,
Thank you for the prompt response.
I will point this out more clearly in the documentation.
And future users will be greateful for that!
VimClojure is looking great Meikel.
Albert
--
Albert Cardona
http://albert.rierol.net
On Fri, Mar 13, 2009 at 8:45 AM, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
Am 13.03.2009 um 13:45 schrieb Mark Volkmann:
Hi Mark, I'm also running on OSX 10.5. I couldn't get it working with
the vim that comes with leopard - vim version 7.0.x
So this casts a new light on the problem. It
Hi,
Am 13.03.2009 um 15:02 schrieb Mark Feeney:
So you could try \rf, but for me this still doesn't quite work for
me. If I have just one file:
foo.clj
(ns foo)
(+ 1 1)
I can't \ef it. I get the same line 23 error you get. If I \rf it
I get:
(clojure.core/load /foo)
Here's my experience...
I was primarily interested in Clojure as a scripting language. I
wanted a nice layer to control code written in Java. I had used
Groovy successfully, but missed macros and an extensible syntax. I
used to work at Lisp Machines, so I jumped on a LISP that compiled to
the
Hi,
Would it be better if resultset-seq mapped column names like ITEM_ID
to :item-id rather than :item_id?
I am using a variation of Itay Maman's Application Context Pattern
which, among other things, keeps state in a map wrapped in a closure.
I have a lot of keywords being passed around. that
Hi,
Am 13.03.2009 um 16:13 schrieb Mark Volkmann:
The version of the Vim that my Mac uses when a launch it from a
Terminal window isn't ancient. It's 7.2.22. It seems likely that the
issue is related to configuration instead of the version of Vim being
used. What happens if you try to use
test-expect actually only depends on test-is for its own tests, and
I'm planning on breaking the tests out into their own file. I thought
it was an interesting idea having the tests and code in the same file,
but in practice it ended up being less attractive than anticipated.
- Matt
On Mar 13,
Any other options out there?
I posted a patch for test-is a while ago that never made it in, and I
don't know why.
http://groups.google.com/group/clojure/browse_frm/thread/883d4833f869f764/47a45325c8f29599?lnk=gstq=test-is+expect+patch#47a45325c8f29599
The patch handles creating stub
Hi Allen,
Sorry I haven't kept up with this. I think, though, that it's best to
have it as a standalone library in clojure-contrib, so that people can
use it with other testing frameworks if they want to.
-Stuart
On Mar 13, 3:20 pm, Allen Rohner aroh...@gmail.com wrote:
Any other options out
On Mar 13, 2009, at 4:10 PM, Stuart Sierra wrote:
Hi Allen,
Sorry I haven't kept up with this. I think, though, that it's best to
have it as a standalone library in clojure-contrib, so that people can
use it with other testing frameworks if they want to.
-Stuart
Allen,
I see you have a
hi,
when i have a repl going and get errors, it says NO_SOURCE_FILE:0 so
it is hard for newbie-me to figure out what i'm doing wrong in my
syntax. does slime do something more helpful here? am i mis-diagnosing
the issue? any other helpful thoughts?
thanks!
i just tried using (load-file foo.clj) to see if that loaded file
line numbers, but the errors still say no source found zero sorry
charlie. :-(
On Fri, Mar 13, 2009 at 4:41 PM, Raoul Duke rao...@gmail.com wrote:
hi,
when i have a repl going and get errors, it says NO_SOURCE_FILE:0 so
it is
hi,
i'm up to date with the clojure jar. the error messages i get seem
awfully terse and not particularly helpful in learning what i'm doing
wrong. for example, with the code below, when i try (bs 0 (vector 1 2
3)) i get java.lang.ClassCastException:
clojure.lang.LazilyPersistentVector
On Mar 13, 11:50 pm, Raoul Duke rao...@gmail.com wrote:
i'm up to date with the clojure jar. the error messages i get seem
awfully terse and not particularly helpful in learning what i'm doing
wrong. for example, with the code below, when i try (bs 0 (vector 1 2
3)) i get
Issue 34 ( http://code.google.com/p/clojure-contrib/issues/detail?id=34 )
created with patch (both -? and .?. defined in clojure.contrib.core, with
unit tests in clojure.contrib.core.tests
--
Laurent
3/13 Laurent PETIT laurent.pe...@gmail.com
OK, so I think the consensus is on the names .?.
On Mar 13, 2009, at 7:50 PM, Raoul Duke wrote:
i'm up to date with the clojure jar. the error messages i get seem
awfully terse and not particularly helpful in learning what i'm doing
wrong. for example, with the code below, when i try (bs 0 (vector 1 2
3)) i get java.lang.ClassCastException:
On Fri, Mar 13, 2009 at 11:31 AM, opus111 opus...@gmail.com wrote:
Here's my experience...
I was primarily interested in Clojure as a scripting language. I
wanted a nice layer to control code written in Java. I had used
Groovy successfully, but missed macros and an extensible syntax. I
thanks, all, for the notes! i will try those out.
sincerely.
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