ImageJ is considered as an excellent lib for image processing :
http://rsbweb.nih.gov/ij/
It is a java lib so integration in clojure is direct. You can even
find a fork with clojure inside (Fiji) :
http://pacific.mpi-cbg.de/wiki/index.php/Clojure_Scripting
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Hello,
without going too deep in the detail of your implementation, I just can't
keep thinking that, as far as I know, it's currently impossible with clojure
to extend the scope of the transaction outside the STM, without changes in
the STM itself (STM being aware of TransactionManagers being
Hi,
On Dec 9, 10:16 pm, Richard Newman holyg...@gmail.com wrote:
However, if you would want to do something like an evolvable trade-off
between epitopes and mutations in viruses, you would like to be able
to store the functions inside each virus.
And you can do that if you change how you
Hey everyone,
I haven't been in #clojure that often lately, but when I have been
there were people asking about Terracotta integration on two separate
occasions. What are the chances of that?! :)
There is a new repo at http://github.com/pjstadig/tim-clojure-1.0.0/
that has a 1.0 compatible
Hi,
update-in is an especially useful function but I find the update
function inevitably requires a check for nil. If I could supply a not-
found value then my code would get better golf scores.
When I reach for update-in, I usually want to pass it a numerical
operator like inc or +, but these
On Tue, Dec 8, 2009 at 3:51 PM, Krukow karl.kru...@gmail.com wrote:
I am writing a function that has to wrap other code. One simple
approach is to do
user (defn wrap-fun [f]
(fn [ args]
(println pre-processing)
(let [res (apply f args)]
(println
In my earlier posts this week I was talking about integrating a repl
into our application; thanks to your help I was able to get this to
work. I appreciate it!
So we actually have a number of scripting languages we have done
this with, such as Jython and SISC Scheme. We have a primitive
One of the objectives of Clojure is to reduce incidental complexity.
And one of the biggest sources of incidental complexity in Clojure was
the retention of the head of a lazy sequence due to its being
referenced by some local (argument or local (let) binding). One might
expect that, if no
Hi,
I want to ask about code arrangement and understandability
(readability).
Consider this normal code:
x = 1
...
f(x)
...
y = x + 2
...
g(y)
x, f, y, g have the same abstractness level, so they are indented to
the same level.
My Clojure code:
(let [x 1]
...
(f x)
...
(let [y (+ x 2)]
Rockin'.
On Thu, Dec 10, 2009 at 9:10 AM, Rich Hickey richhic...@gmail.com wrote:
One of the objectives of Clojure is to reduce incidental complexity.
And one of the biggest sources of incidental complexity in Clojure was
the retention of the head of a lazy sequence due to its being
On Thu, Dec 10, 2009 at 9:15 AM, ngocdaothanh ngocdaoth...@gmail.com wrote:
Hi,
I want to ask about code arrangement and understandability
(readability).
Consider this normal code:
x = 1
...
f(x)
...
y = x + 2
...
g(y)
x, f, y, g have the same abstractness level, so they are
On Dec 10, 2009, at 9:10 AM, Rich Hickey wrote:
I'm happy to announce I have implemented this fine-grained locals
clearing in the compiler, in the 'new' branch. It should automatically
cover all cases in which the code doesn't explicitly reuse the head -
including non-tail usage,
I'm not sure either what you mean by abstraction level, but I would say
that I tend more to think about abstraction level to be at function
definition level.
2009/12/10 ngocdaothanh ngocdaoth...@gmail.com
Hi,
I want to ask about code arrangement and understandability
(readability).
Tom,
I like the idea of an added in version, javadocs do it too. Perhaps
it could go in the metadata?
There is an issue to figure out, though. In the upgrade to 1.1, slurp
got a new arity. In JavaLand this would be a non issue, because the
new arity would have its own docs. However, in
If you want to rewrite from scratch, it's not very difficult, given that you
have clojure.core/ns-* (e.g. ns-public ...) functions at your disposal for
free.
The code in VimClojure is particularly clear, stable and complete, I guess
(at least for the clojure part of the story, don't know about
On Thu, Dec 10, 2009 at 9:15 AM, ngocdaothanh ngocdaoth...@gmail.com wrote:
My Clojure code:
(let [x 1]
...
(f x)
...
(let [y (+ x 2)]
...
(g y)))
It is very difficult to capture the algorithm behind the Clojure
code because things of the same abstractness level do not have
Tim,
I like both of these ideas. I agree, get-in2 seems to make sense as a
drop in replacement.
With update-in2 I prefer a new name, because I do occasionally write
code that constructs lists of functions. I'd hate to get a weird bug
while doing this.
Sean
On Dec 10, 7:20 am, Timothy Pratley
A few things might help:
* Judging by you examples, I looks like you're still getting used to
the lisp style of coding. Everything is a chained function call.
Write your code to support with that in mind.
* Practice using comp partial. Write a few small apps where you
NEVER use a let form.
*
On Thu, Dec 10, 2009 at 09:26:07AM -0500, Graham Fawcett wrote:
(let [x 1
_ (f x)
y (+ x 2)
_ (g y)]
...)
What do people in general think of this style? I remember using this
trick a lot with O'Caml, and I've certainly used it a few times in
Clojure, but something feels icky
+1 As cool as the new branch is, this is the first compelling reason
I've seen to go to my boss and say we need to switch to it now.
Thanks Rich!
On Dec 10, 6:40 am, Stephen C. Gilardi squee...@mac.com wrote:
On Dec 10, 2009, at 9:10 AM, Rich Hickey wrote:
What a great change! We ran into
If it's for side-effects, then using _ is fine, in my opinion—they're
nicely identifiable.
They're especially useful for inserting println calls for seeing the
value of something when I'm debugging; in fact, this is the primary
way I do debugging. I would say, though, that usually if you're going
Hi,
On Dec 10, 4:06 pm, Laurent PETIT laurent.pe...@gmail.com wrote:
If you want to rewrite from scratch, it's not very difficult, given that you
have clojure.core/ns-* (e.g. ns-public ...) functions at your disposal for
free.
The code in VimClojure is particularly clear, stable and
On 10 dec, 09:25, Frédéric Morain-Nicolier f.nicol...@gmail.com
wrote:
ImageJ is considered as an excellent lib for image processing
:http://rsbweb.nih.gov/ij/
It is a java lib so integration in clojure is direct. You can even
find a fork with clojure inside (Fiji)
Doh...
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How to rearrange the Clojure code for understandability?
One approach I've used in Common Lisp to avoid multiple lets is to do
(let* ((x (let ((v 1))
(f v) ; for side-effects
v))
(y (+ x 2)))
(g y))
This calls to mind Clojure's doto, which instantiates a
They're especially useful for inserting println calls for seeing the
value of something when I'm debugging; in fact, this is the primary
way I do debugging.
(defn tee (x)
(println Debug: (prn-str x))
x)
(let [x (tee (foo 1))]
...)
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+1 As cool as the new branch is, this is the first compelling reason
I've seen to go to my boss and say we need to switch to it now.
Thanks Rich!
Speaking of which... I know the new branch is where Rich publishes his
current work. Does anyone (Rich included!) have any opinion on whether
I'm having some trouble with Alex's macro. I can type in the debug-
repl, but when I hit enter, it just hangs and nothing happens.
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Hi Folks,
So, I have a search string, for example rabble. And a map which
contains keyword keys, and vectors of strings as values:
(def players
{
:amit [a b c]
:roger [rabble x y]
})
Is there an idiomatic way to search for rabble in the vector values,
then return the keyword that matches it?
Try this...
(second (first (filter (comp (partial some #{rabble}) val)
players)))
On Dec 10, 2:40 pm, mudphone kyle...@gmail.com wrote:
Hi Folks,
So, I have a search string, for example rabble. And a map which
contains keyword keys, and vectors of strings as values:
(def players
{
:amit
Oops! Slight mistake
(ffirst (filter (comp (partial some #{rabble}) val) players))
On Dec 10, 3:27 pm, Sean Devlin francoisdev...@gmail.com wrote:
Try this...
(second (first (filter (comp (partial some #{rabble}) val)
players)))
On Dec 10, 2:40 pm, mudphone kyle...@gmail.com wrote:
Hi
are you using slime? Currently, you need to use a non-slime repl, (I
think because of how slime handles io redirection)
On Dec 10, 12:14 pm, kyle smith the1physic...@gmail.com wrote:
I'm having some trouble with Alex's macro. I can type in the debug-
repl, but when I hit enter, it just hangs
Yes, I just figured that out. Is there a way to use this with slime?
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On Thu, Dec 10, 2009 at 2:26 PM, Richard Newman holyg...@gmail.com wrote:
+1 As cool as the new branch is, this is the first compelling reason
I've seen to go to my boss and say we need to switch to it now.
Thanks Rich!
Speaking of which... I know the new branch is where Rich publishes his
I can't express how thrilled I am that you did this work.Thanks so
much - since I've run into a few of these classes of bugs, I'll see if
I can switch over to new and try to run against some big data sets and
give some feedback, if I can find the time.
On Dec 10, 6:10 am, Rich Hickey
Hi folks,
To whom should I send a pull-request for an enhancement for
clojure.contrib.sql? I see that scgilardi is listed as the author, but
I'm not very clear on how the contrib community works.
My patch provides an :external key to (get-connection), which lets you
pass in an existing db
Hi,
Am 10.12.2009 um 20:40 schrieb mudphone:
So, I have a search string, for example rabble. And a map which
contains keyword keys, and vectors of strings as values:
(def players
{
:amit [a b c]
:roger [rabble x y]
})
(defn key-from-match [search-str]
(let [key-of-str? (fn
Hi, I am interested in expanding the unit test coverage for clojure, I
have signed and mailed in the Agreement and my name now appears on the
clojure contributer page. Could someone PLEASE take my patches and
apply it to the code ?
Yes I did read Before you invest time working on a change,
I've posted an attempt to teach duck-streams to be as convenient for
byte streams as it now is for textual streams. I'm looking for review
and feedback and hoping for inclusion in clojure-contrib.
http://wiki.github.com/bpsm/clojure-contrib/about-branch-ducks-byte
Also, it may be very useful to try all your code on 'new' *without*
taking
advantage of the new features, and reporting back on any
breakage.
That's more what I was thinking. While I find the new features
interesting, I'm less jazzed about spending the time to build on
features that
HI,
I have just watched Rich's QCon talk and in some parts he is referring
to the slides that are not displayed in the video. Of, course, the
talk is perfectly fine without that, but I need to understand some
specific tricky details, and I believe that the referred slides would
help. Are they
Is it a good idea, from the performance standpoint, to use many refs
in the program? By many, I mean thousands or even millions?
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It looks like renaming the version of Clojure in the build.clojure.org
repository from 1.1.0-alpha-SNAPSHOT to 1.1.0-master-SNAPSHOT will
require every project previously uploaded to Clojars, using the former
name, to rewrite its pom and resubmit.
I like the new naming scheme, but would it be
Hi Steve,
On Thu, Dec 10, 2009 at 4:53 PM, Stephen C. Gilardi squee...@mac.com wrote:
Hi Graham,
To whom should I send a pull-request for an enhancement for
clojure.contrib.sql? I see that scgilardi is listed as the author, but
I'm not very clear on how the contrib community works.
The
Dragan Djuric draga...@gmail.com writes:
Is it a good idea, from the performance standpoint, to use many refs
in the program? By many, I mean thousands or even millions?
The question isn't how many refs you should instantiate, it's how many
refs you should read or write to at once in a
Thanks for updating my clojure-dev membership
On Dec 10, 1:33 pm, devender devender.gollapa...@gmail.com wrote:
Hi, I am interested in expanding the unit test coverage for clojure, I
have signed and mailed in the Agreement and my name now appears on the
clojure contributer page. Could someone
On Dec 10, 2009, at 7:18 PM, Graham Fawcett wrote:
Thank you! I'm already a registered Clojure contributor. Tomorrow I'll
prepare a ticket and attach the patch.
Excellent!
If you'd rather discuss it first on or off-list, let me know I'll
hold off on the ticket.
Please do put in a ticket
Seconded; I like the intention of both changes, and do something
similar in a lot of my code (e.g., parsing functions that take an
extra arg if the parse is unsuccessful). Also, testing the type of
update-in2's second arg is a bad idea, imo.
As for the breaking change of adding another arg to
On Dec 10, 11:02 am, Richard Newman holyg...@gmail.com wrote:
They're especially useful for inserting println calls for seeing the
value of something when I'm debugging; in fact, this is the primary
way I do debugging.
(defn tee (x)
(println Debug: (prn-str x))
x)
(let [x (tee
The spy macro from c.c.logging does that. ;)
I knew it was there somewhere; I just couldn't remember where, or what
it was called! :)
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It's definitely on my todo list. But probably like yours, that list
ain't short.
On Dec 10, 12:56 pm, kyle smith the1physic...@gmail.com wrote:
Yes, I just figured that out. Is there a way to use this with slime?
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On Dec 9, 2009, at 3:54 PM, HerbM wrote:
As I was preparing the post a message requesting help for
an error (see below) generated when I entered the quick start
suggest, I realized that suggestion is generic, and not technically
accurate.
java -cp clojure.jar clojure.lang.Repl
Many
I'd like to say
(union #{1} #{2})
but I'm forced to say
(clojure.set/union #{1} #{2})
what'd I do wrong, please thanks?
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(clojure.set/union #{1} #{2})
what'd I do wrong, please thanks?
Nothing wrong!
Try this:
(use 'clojure.set)
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On Dec 11, 12:21 am, Dragan Djuric draga...@gmail.com wrote:
HI,
I have just watched Rich's QCon talk and in some parts he is referring
to the slides that are not displayed in the video. Of, course, the
talk is perfectly fine without that, but I need to understand some
specific tricky
liebke lie...@gmail.com writes:
I like the new naming scheme, but would it be possible to add 1.1.0-
alpha-SNAPSHOT back to the repository (in addition to the new names),
so that builds dependent on projects in Clojars will be able to
download their dependencies correctly again, at least
On Thu, Dec 10, 2009 at 09:13:33AM -0800, samppi wrote:
notation before, and it is fine. For my tastes, however, I think that
it repeats the symbol (in this case, 'x) too much. Sometimes it may be
the best way, but usually I would instead use -, -, and/or letfn.
The problem I have using - and -
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