On Thu, Mar 12, 2009 at 11:26 AM, Jon Harrop j...@ffconsultancy.com wrote:
IME, the trouble can be well worth it. I once wasted two weeks trying to track
down bugs in a thousand lines of code using unit tests and never managed it.
When I finally caved in and tried to leverage the static type
Hi guys,
I'm loving Clojure, but i'm having a lot of trouble writing programs
in it that run as fast as my python equivalents.
One example is code i've written for projecteuler.net problem 87 (for
those who don't want to see any solutions don't click the links
below :))
my python version
I have now released the first version of my pretty printer as part
of my cl-format library. It is released under the EPL.
The pretty printer has two functions that you probably care about:
(pprint obj) will pretty print the given object, and
(pp) at the REPL will pretty print the last result
Can anyone point me to a PIL-like library that will work from Clojure?
Thanks.
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Jerry K jerryk...@gmail.com writes:
Hi Jerry,
Also, I've not looked at any of the math code in clojure contrib, but
expressed as such, I wouldn't expect the idiom (mod (expt n exp) m)
to be at all fast for reasons largely independent of the numeric
implementation underneath.
Yes, you're
On Mar 12, 3:22 am, Mark Engelberg mark.engelb...@gmail.com wrote:
I know of someone who tracked all his bugs in a year of coding in both
Scheme (dynamic) and ML (static). He said that there was no real
difference. The kind of bugs that are caught by static type systems
are also quickly
So, we're going to implement it in near-term future.
Thanks Ilya! I (and I'm sure others) will look forward to it.
It seems to be a good tactics to compile all files with namespaces
labeled by :gen-class to the same output path as vanilla java classes
before compiling Java part (to allow the
I'm interested too - got some ruby stuff using rmagick I'd like to
rewrite - there's jmagick but it sounds like a pain to get it working
on osx, and there's a library that wraps imagemagick command-line, but
something native that supports:
- 48 bits-per-pixel images
- colour profiles
- digital
On Mar 11, 2009, at 11:04 AM, Jerry K wrote:
Also, I've not looked at any of the math code in clojure contrib, but
expressed as such, I wouldn't expect the idiom (mod (expt n exp) m)
to be at all fast for reasons largely independent of the numeric
implementation underneath.
Computing the
I was just reading
thishttp://developer.amd.com/documentation/Articles/pages/01302008_jvm.aspx
and
wondering: Does Clojure's pure-functional design enhance VM-level bytecode
optimization by simplifying escape analysis?
Joshua
--~--~-~--~~~---~--~~
You received
On 11.03.2009, at 23:34, Chouser wrote:
Interacting directly with a class dict feels a little dirty, because
you could be circumventing the API provided by the class methods,
making it easy to get the object into a bad state. Clojure's maps
being immutable reduces the amount of trouble you
Setting that one
(set! *warn-on-reflection* true)
Helped a lot in my simulation model to find out where clojure/java
were having trouble. It pointed out that one of my main functions was
causing trouble, and could do with a bit of typehinting.
(defn #^Short find-all-epi
turns the rx and
On Mar 12, 2009, at 3:05 AM, Tom Faulhaber wrote:
I have now released the first version of my pretty printer as part
of my cl-format library. It is released under the EPL.
The pretty printer has two functions that you probably care about:
(pprint obj) will pretty print the given object,
Mod seems to have broken again
(mod 9 -3) gives -3
(map #(mod % 3) (range -10 10))
(2 3 1 2 3 1 2 3 1 2 0 1 2 0 1 2 0 1 2 0)
svn 1372.
Chouser wrote:
On Sat, Feb 14, 2009 at 12:45 AM, Stephen C. Gilardi squee...@mac.com wrote:
The new mod isn't working properly though:
On Mar 11, 2009, at 19:04, Jerry K wrote:
I had thought a while back about digging into building some math code
for clojure contrib for applications like algebra and number theory,
since Clojure's Lispyness makes it well suited for that, but wasn't
sure anybody else was especially
Konrad Hinsen wrote:
On 11.03.2009, at 23:34, Chouser wrote:
Interacting directly with a class dict feels a little dirty, because
you could be circumventing the API provided by the class methods,
making it easy to get the object into a bad state. Clojure's maps
being immutable reduces the
On Mar 12, 2009, at 10:59, Jeff Rose wrote:
My main conclusion is that Clojure's system is a lot more flexible
but also a lot more fragile. Any function can modify data of any
type (as defined by metadata), even without being aware of this.
Modifying type tags without being aware of it?
Latest SVN r1327 works ok:
user= (mod 9 -3)
0
user= (map #(mod % 3) (range -10 10))
(2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0)
Test-clojure runs ok too.
Frantisek
On Mar 12, 10:30 am, bOR_ boris.sch...@gmail.com wrote:
Mod seems to have broken again
(mod 9 -3) gives -3
(map #(mod % 3)
Hmm. might be mixing two versions of clojure on my system than. Thanks
for correcting me!
On Mar 12, 11:47 am, Frantisek Sodomka fsodo...@gmail.com wrote:
Latest SVN r1327 works ok:
user= (mod 9 -3)
0
user= (map #(mod % 3) (range -10 10))
(2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0)
I wrote these a while ago, and I'm not sure if they're still useful or not,
but I'll just send them along without any guarantee. I have used them like
(__FILE__) and (__DIR__) when I wanted to get access to things relative to
the current file.
(defmacro __FILE__ []
`(if *file*
(let [f#
On Thursday 12 March 2009 06:38:48 Korny Sietsma wrote:
But maybe you use unit tests some other way? How do you use unit
tests to track down bugs?
I mean: I had unit tests for each function but they were not identifying the
bug so I kept augmenting them with more tests in the hope that I
Mark Engelberg wrote:
Can anyone point me to a PIL-like library that will work from Clojure?
Hi Mark,
We use clojure to handle the java-only ImageJ application and library.
It's not what you'd call an industrial-strength library, but rather a
dedicated practical application for scientific
This is almost exactly my experience in PHX at our user groups.
Unfortunately I am also trying to hire people and I find the people
here have no interest in learning something new because they already
know java (at least the ones I've seen on interviews).
On Mar 11, 11:22 am, Howard Lewis Ship
Awesome! I expect I'll be trying it out tonight.
Oh, and I hope this goes into contrib -- it'll keep my classpath shorter.
On Thu, Mar 12, 2009 at 2:05 AM, Tom Faulhaber tomfaulha...@gmail.comwrote:
I have now released the first version of my pretty printer as part
of my cl-format library.
After a lot of experimentation with types and interfaces, I have
somewhat redesigned clojure.contrib.types. The new version contains
some breaking changes, but the changes are minor.
There are now two different ways to define types, one of them being
algebraic data types, which are now
Ok, duh, somehow didn't catch that this link was the code I was
wondering about:
http://github.com/remvee/clojure/tree/master/
Also, this is interesting:
http://translate.google.com/translate?sl=autotl=enu=http%3A%2F%2Fblog.remvee.net%2F2009%2F01%2F18%2FsetText_tv_Hello_Android_from_Clojure
Hi Michael,
This looks really interesting. One thing I noticed, though, is that
the page links to clojure.sourceforge.net as the Clojure web site.
Although that does redirect to the correct place (clojure.org) it
could give people the false impression that Clojure is still hosted on
I just checked in an almost complete reimplementation of
clojure.contrib.stream-utils. It is now centered around an interface
for data streams that consists of the single multimethod stream-next.
It takes a stream state as its argument and returns the next value of
the stream as well as
On Mar 11, 11:11 pm, e evier...@gmail.com wrote:
On Wed, Mar 11, 2009 at 6:28 PM, Stuart Sierra
the.stuart.sie...@gmail.comwrote:
Ok, here's a real one: if you need to use a lot of C/C++ libraries,
for which there are no Java replacements, Clojure won't be much fun,
because C/C++
You should profile your code.
A cousin of mine was solving a problem from programmingchallenges.com
in C++. I wrote a solution in Clojure.
At the beginning, my version was astronomically slower. After
profiling, I reduced it to about 2x slower.
After modifying it to use Java arrays, it actually
Hi Ilya,
I'm just wondering if it's possible for you to release a quick version
update with the latest changes incorporated. I'm interested in the
fixes to the namespace-qualified keywords, and the keyword indentation
rules specifically.
Thanks a lot
-Patrick
Konrad Hinsen wrote:
On Mar 12, 2009, at 10:59, Jeff Rose wrote:
My main conclusion is that Clojure's system is a lot more flexible
but also a lot more fragile. Any function can modify data of any
type (as defined by metadata), even without being aware of this.
Modifying type tags without
Amazing stuff. In particular this finally makes debugging macros sane.
For those of you that are using swank-clojure you only need to make minor
modifications to swank-clojure to pretty-print your macro expansions to the
macro expansion buffer. Even better you can move the cursor to subform
Hi Patrick.
I'd recommend to you to build plugin by yourself. It's very, very
simple. Just check-out it from following svn root:
http://svn.jetbrains.org/idea/Trunk/clojure-plugin
After that change clojure.properties file to make two variables point
to your $JAVA_HOME and IDEA installation
On Wed, 11 Mar 2009 21:51:51 -0700 (PDT)
Raffael Cavallaro raffaelcavall...@gmail.com wrote:
On Mar 11, 11:43 pm, Stephen C. Gilardi squee...@mac.com wrote:
Here are the expressions and results in a simplified notation:
#{a b c} - #{a b} = #{c}
#{a b} - #{a b c} = #{}
ok, so I was
On Mar 12, 2009, at 8:05, Tom Faulhaber wrote:
I have now released the first version of my pretty printer as part
of my cl-format library. It is released under the EPL.
From what I have seen in my first tests, this is likely to become an
essential part of my Clojure environment. Thanks!
Hi Albert
On Thu, Mar 12, 2009 at 4:06 PM, Albert Cardona sapri...@gmail.com wrote:
Hi Michael,
[...]
Because ImageJ's ij.jar became a library long after being just an
application. There is no concept of MVC, and thus GUI classes are mixed
with processing and controller constructs. What's
Hi Albert
On Thu, Mar 12, 2009 at 4:06 PM, Albert Cardona sapri...@gmail.com wrote:
Hi Michael,
[...]
Because ImageJ's ij.jar became a library long after being just an
application. There is no concept of MVC, and thus GUI classes are mixed
with processing and controller constructs. What's
Rich,
I would be happy to make it a contribution (it's the least I can do!).
I've had a CA sitting on my desk unread and unsigned for about 3
weeks. It is now read, signed, and in an envelope. I'll send it off
this morning.
Everyone,
Thanks for the kind words. I'm glad you like it.
David's
On Mar 12, 11:28 am, Kyle Schaffrick k...@raidi.us wrote:
clojure.set/difference implements the relative complement operation. I
don't see a symmetric difference operation in clojure.set, but it
might be useful:
exactly; I was naively thinking of symmetric difference since this is
the
On Sat, Feb 7, 2009 at 8:16 AM, David Powell djpow...@djpowell.net wrote:
Newer versions of JDK 1.6, eg Update 11, have an application called
'jvisualvm' in the bin directory. It lets you attach to any running
Java process and it has a profiler that you can switch on at runtime.
If you're
Expanding on David's earlier example of pretty printing, we can set
the dispatch to *code-dispatch* and bind *print-suppress-namespaces*
to true and get the following (apologies for google messing up my
formatting):
(do
(defmacro dft2 [tree]
(seq (concat (list '=dft2) (list '*cont*) (list
Are you planning to include scripts at some point that support pretty
printing a source file? For example, I'd like to do this from a
terminal window:
$ cljpp foo.clj foo2.clj
Mark,
Yeah, I've thought about that and the simple version is very straight-
forward and I'm planning to do that
The Erlang world has a tool called Dialyzer
w00t.
i've always very much liked that approach, and wish it were available
for other dynamic languages (maybe qi-lang is somewhat similar). it
seems to offer everybody whatever options they want, so we can all get
along. sorta in the vein of gradual
So that people can copy and paste the change in basic.clj
(defn- apply-macro-expander [expander string]
(binding [*print-suppress-namespaces* true]
(let [astr (with-out-str
(with-pprint-dispatch *code-dispatch*
(pprint (expander (read-from-string string)]
(subs astr 0 (dec
On Mar 12, 2009, at 10:54, Konrad Hinsen wrote:
Building a math environment is one of my long-term goals in working
with Clojure, and my recent experiments with types and interfaces are
partly motivated by this. What I have in mind is an infrastructure
consisting of a few well-designed
On Mar 12, 4:46 am, Joshua Fox joshuat...@gmail.com wrote:
wondering: Does Clojure's pure-functional design enhance VM-level bytecode
optimization by simplifying escape analysis?
Functional design doesn't necessarily make bytecode easy to optimize.
But Rich Hickey works hard on making Clojure
On Mar 9, 8:12 pm, Laurent PETIT laurent.pe...@gmail.com wrote:
When interacting with java code, and maybe in other pure clojure situations
as well (but I have not encountered the case myself), I was faced with
writing boiler plate code to check whether the return values of a chain of
calls
So, I'm doing the whole Euler thing, and I'm writing a function for
finding primes using wheel factorization in combination with the Sieve
of Eratosthenes.
The algorithm is correct, but very slow. I've managed to isolate the
part that's having unexpectedly bad performance.
I just can't see why
I suppose the following is more idiomatic:
(defn- apply-macro-expander [expander string]
(let [astr (with-out-str
(binding [*print-suppress-namespaces* true]
(with-pprint-dispatch *code-dispatch*
(pprint (expander (read-from-string string))]
(subs astr 0 (dec (count
On Thu, Mar 12, 2009 at 12:50 PM, Phil Hagelberg p...@hagelb.org wrote:
Paul Stadig p...@stadig.name writes:
I wrote these a while ago, and I'm not sure if they're still useful or
not, but I'll just send them along without any guarantee. I
have used them like (__FILE__) and (__DIR__) when
Works for me: I just overwrote my copy of resultset-seq with one that
uses getColumnLabel, and I am now getting the results I expected from
complex queries (in Interbase, at least).
On Feb 23, 9:33 am, Rich Hickey richhic...@gmail.com wrote:
Sounds good to me - any drawbacks to this? Does it
Ah thank you for those instructions. That's very helpful.
-Patrick
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On Mar 12, 10:56 am, Stuart Sierra the.stuart.sie...@gmail.com
wrote:
On Mar 12, 4:46 am, Joshua Fox joshuat...@gmail.com wrote:
wondering: Does Clojure's pure-functional design enhance VM-level bytecode
optimization by simplifying escape analysis?
Functional design doesn't necessarily
Also, union/difference/intersection/symmetric-diff are binary. Would
there be any interest in a patch to make them n-ary?
Union, difference, and intersection are all variadic as of a month or
so ago. Are you on the latest SVN?
-Jason
--~--~-~--~~~---~--~~
Works great.
On Thu, Mar 12, 2009 at 3:30 PM, Tom Faulhaber tomfaulha...@gmail.comwrote:
Write can produce pretty output directly to a string and without the
trailing newline, making this a little shorter:
(defn- apply-macro-expander [expander string]
(binding
Ok, sorry for posting this. I figured it out myself.
Turns out that my eratosthenes function took much, much longer on
primes and near-primes than it does on the average number. And, of
course, the numbers that pass through the wheel factorization filter
are just that.
So the good news is that
The README.txt file doesn't describe the files that need to be copied
to ~/.vim. I'm getting errors starting Vim now. I suspect it's because
I haven't copied all the necessary files to my ~/.vim directory. Which
files do I need to copy?
--
R. Mark Volkmann
Object Computing, Inc.
On Mar 12, 3:21 pm, Mark Volkmann r.mark.volkm...@gmail.com wrote:
The README.txt file doesn't describe the files that need to be copied
to ~/.vim. I'm getting errors starting Vim now. I suspect it's because
I haven't copied all the necessary files to my ~/.vim directory. Which
files do I
Hi,
Am 12.03.2009 um 21:30 schrieb Mark Volkmann:
On Mar 12, 3:21 pm, Mark Volkmann r.mark.volkm...@gmail.com wrote:
The README.txt file doesn't describe the files that need to be copied
to ~/.vim. I'm getting errors starting Vim now. I suspect it's
because
I haven't copied all the
On Thu, Mar 12, 2009 at 3:37 PM, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
Am 12.03.2009 um 21:30 schrieb Mark Volkmann:
On Mar 12, 3:21 pm, Mark Volkmann r.mark.volkm...@gmail.com wrote:
The README.txt file doesn't describe the files that need to be copied
to ~/.vim. I'm getting errors
Seems like there's a bug here. All the digits less than 8 work. If
leading zeros aren't allowed, at least the behavior ought to be
consistent.
(def n 01)
#'user/n
...
(def n 07)
#'user/n
BUT
(def n 08)
clojure.lang.LispReader$ReaderException:
java.lang.NumberFormatException: Invalid number:
In Java, numbers prefixed with a 0 are treated as octal. It should not
surprise us, then, that 08 and 09 blow up.
On Thu, Mar 12, 2009 at 4:08 PM, levand luke.vanderh...@gmail.com wrote:
Seems like there's a bug here. All the digits less than 8 work. If
leading zeros aren't allowed, at least
Hi,
Am 12.03.2009 um 22:08 schrieb levand:
Seems like there's a bug here. All the digits less than 8 work. If
leading zeros aren't allowed, at least the behavior ought to be
consistent.
Leading zeros indicate octal, which has no digits like 8 or 9...
In so far it's not a bug nor is it
On Thu, Mar 12, 2009 at 5:13 PM, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
Am 12.03.2009 um 22:08 schrieb levand:
Seems like there's a bug here. All the digits less than 8 work. If
leading zeros aren't allowed, at least the behavior ought to be
consistent.
Leading zeros indicate
I have to wonder a bit about the ability to optimize. Everything
boils down to one of the seven or so basic forms. That's a lot of
function calls to do even small things, like adding numbers. You might
think that simple math would be optimized and inlined, but it isn't:
Clojure
user= (doc +)
basically i am dealing with a 3rd party library, (interactive brokers
tws api), that takes an interface with lots of different methods that
it calls when an event occurs. like received market data, received
order, etc... It provides another interface that basically generates
these events.
Some
On Mar 12, 11:15 pm, Howard Lewis Ship hls...@gmail.com wrote:
I have to wonder a bit about the ability to optimize. Everything
boils down to one of the seven or so basic forms. That's a lot of
function calls to do even small things, like adding numbers. You might
think that simple math
On Thu, Mar 12, 2009 at 9:30 PM, Mark Volkmann
r.mark.volkm...@gmail.com wrote:
cp -r {autoload,bin,doc,ftdetect,ftplugin,indent,syntax} ~/.vim
You don't need the content of bin folder under ~/.vim
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You received this message because you are
Oh, I should have search through the ml first ...
I see that we came to almost exactly the same code ;-)
So it seems that finally, there are more than persons named Stuart that
would like to see this function somewhere in clojure or clojure-contrib.
I have the following questions :
*
Mark Engelberg mark.engelb...@gmail.com writes:
Hi Mark,
For number theory you often need things like
(mod (expt n exp) m)
Yes, and to make things like this fast, the trick is to perform the
mod at each multiplication step, rather than waiting until the end.
So now I added this
On Mar 12, 2009, at 5:45 PM, Laurent PETIT wrote:
* Concerning the name to give to this function : maybe -? instead
of ?-, if you think we can live with this violation to the
predicate convention ?
I like these:
.?.
-?
They fit with the criteria that Rich laid down in
I've had this one. For me it was failure to have vimclojure.jar in
the classpath of the nailgun server.
Here's how I start the server on Windows:
@echo off
set VIMCLOJURE_JAR=c:\vim\vimfiles\vimclojure.jar
set CLOJURE_JAR=c:\java\clojure-read-only\clojure.jar
set
Dear vimming Clojurians,
unfortunately there was a typo in the documentation.
It should read:
let clj_want_gorilla = 1
Without a 's'.
I'm sorry for the inconvenience.
Sincerely
Meikel
smime.p7s
Description: S/MIME cryptographic signature
Well, at some point I'll open up the code and check. Though I'll be
overly tempted to write some comments, fix the indentation and write
some tests if I do!
On Thu, Mar 12, 2009 at 2:36 PM, Jarkko Oranen chous...@gmail.com wrote:
On Mar 12, 11:15 pm, Howard Lewis Ship hls...@gmail.com wrote:
Hi,
Am 11.03.2009 um 01:20 schrieb Jeff Rose:
Awesome! This is really sweet. I've got it up and running, and
this is
really getting good now. I've got a couple quick questions:
* Is there a smart way to install it? I've been copying each .vim
file
into its place inside my $HOME/.vim
On Thu, 12 Mar 2009 12:45:00 -0700 (PDT)
Jason Wolfe jawo...@berkeley.edu wrote:
Also, union/difference/intersection/symmetric-diff are binary. Would
there be any interest in a patch to make them n-ary?
Union, difference, and intersection are all variadic as of a month or
so ago. Are
On Wed, 11 Mar 2009 00:36:39 +0100
Meikel Brandmeyer m...@kotka.de wrote:
Dear vimming Clojurians,
I'm proud to announce VimClojure 2.0!
Working fantastic here, thanks for this. I just cannot get comfortable
in Emacs. I really did try :)
More information on the installation can be
On Mar 12, 2009, at 3:34 PM, Kyle Schaffrick wrote:
On Thu, 12 Mar 2009 12:45:00 -0700 (PDT)
Jason Wolfe jawo...@berkeley.edu wrote:
Also, union/difference/intersection/symmetric-diff are binary. Would
there be any interest in a patch to make them n-ary?
Union, difference, and
On Thu, 12 Mar 2009 13:30:51 -0700 (PDT)
Mark Volkmann r.mark.volkm...@gmail.com wrote:
On Mar 12, 3:21 pm, Mark Volkmann r.mark.volkm...@gmail.com wrote:
The README.txt file doesn't describe the files that need to be
copied to ~/.vim. I'm getting errors starting Vim now. I suspect
it's
On Thu, 12 Mar 2009 15:50:16 -0700
Jason Wolfe jawo...@berkeley.edu wrote:
On Mar 12, 2009, at 3:34 PM, Kyle Schaffrick wrote:
On Thu, 12 Mar 2009 12:45:00 -0700 (PDT)
Jason Wolfe jawo...@berkeley.edu wrote:
Also, union/difference/intersection/symmetric-diff are binary.
Would there
union does an implicit distinct operation, as it returns a set. I
didn't think Clojure had multisets, unless we've had another Rich's
Time
Machine moment :)
Nope, it doesn't have multisets ... I somehow read that as apply
concat rather than apply union ... maybe I need some more sleep
On Thu, Mar 12, 2009 at 5:04 PM, Stephen C. Gilardi squee...@mac.com wrote:
On Mar 12, 2009, at 5:45 PM, Laurent PETIT wrote:
* Concerning the name to give to this function : maybe -? instead of ?-,
if you think we can live with this violation to the predicate convention ?
I like these:
I don't have trouble connecting from Emacs. I just added
(setq swank-clojure-extra-vm-args (list -
Dcom.sun.management.jmxremote=true )
to my clojure swank configuration.
On Mar 12, 10:47 am, Scott Jaderholm jaderh...@gmail.com wrote:
On Sat, Feb 7, 2009 at 8:16 AM, David Powell
On Mar 12, 2:45 pm, Tassilo Horn tass...@member.fsf.org wrote:
Mark Engelberg mark.engelb...@gmail.com writes:
Hi Mark,
For number theory you often need things like
(mod (expt n exp) m)
Yes, and to make things like this fast, the trick is to perform the
mod at each multiplication
On Mar 12, 2009, at 9:45 PM, Mark Volkmann wrote:
On Thu, Mar 12, 2009 at 5:04 PM, Stephen C. Gilardi
squee...@mac.com wrote:
I like these:
.?.
-?
Given a choice between the two, I'd choose -?
The proposal was for naming nil-safe versions of the existing .. and
-
Meikel, found a few more things that might need fixing.
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?
2) When doing a macroexpand (me or m1), the cursor is moved into the
REPL buffer. Is
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