On 23 Mar 2010, at 02:31, Lee Spector wrote:
Someone else mentioned that maybe part of the problem is that there
are several different simple ways to get started, and this may
have been part of my own problem.
What we have currently is lots of individuals who have figured out a
good
On Mar 17, 4:56 pm, Eugen Dück eu...@dueck.org wrote:
The complete jnlp can be found athttp://dueck.org/kanshiki-boom/.
I plan to introduce and document this beta-grade app soon, but if
there's any Japanese learner out there interested in or in need of
Kanji handwriting recognition, check
On Tue, Mar 23, 2010 at 12:03 AM, cageface milese...@gmail.com wrote:
Perhaps it would be useful to at least included a ready-to-go clj
shell/batch script in the default distribution?
Thanks to some awesome work by contributors, I think the one in
ClojureX became fairly good over time:
Hello, and thanks in advance for suffering a beginner question ;)
Is it possible to do a compound condition, such as if this test AND
that test?
And while I do want to know if there's a Clojure way to do multiple
tests in one condition, my reason in this case for needing it is to
test a number
Hi,
On Mar 23, 10:09 am, Michael Teter tot...@gmail.com wrote:
Is it possible to do a compound condition, such as if this test AND
that test?
(if (and (this test) (that test))
...
...)
or is left as an exercise. ;)
For example, if 0 = x = 10. I realize there may be a proper Clojure
Excellent, exactly the information I was seeking.
Thanks much!
On Mar 23, 4:18 am, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
On Mar 23, 10:09 am, Michael Teter tot...@gmail.com wrote:
Is it possible to do a compound condition, such as if this test AND
that test?
(if (and (this test)
On 23 March 2010 00:13, Luc Préfontaine lprefonta...@softaddicts.ca wrote:
I looked at these videos and they are a very good starting point.
Then do we have a communication problem getting these things known ?
Are these videos listed on the Getting started page ?
Let's see if I can get this
Subject: Re: mvn clojujure:repl - no keyboard echo
If jline is a problem, does removing it from the pom's dependencies
solve the problem?
Umm. Looks like I guessed wrong about jline. Took out the refs to jline in
the Incanter pom,
and got same problem.
So I backed up a step, copied
Maybe it'd be helpful to draw up several of the most common use-cases
and target those with instructions. There are programmers new to some
combination of Lisp/Clojure/Java either wanting to just get a taste of
Clojure, or wanting to get a IDE/text editor (of their choosing) going
to program in
I think that he made a good point, despite his rantings.
As an experienced java developer, these are the steps I took while
setting my environment up and running.
- downloaded the jar, launched java -jar clojure.jar. I was able to
fiddle with the repl, but when it came to code something dependent
I need a little help. I need to convert a 4-byte array to an integer
as quickly as possible. (I use this operation in a tool I am writing,
and I need to process millions of records per second, so performance
matters.)
In a half-Clojure, half-Java operation, I see:
(time
(dotimes [x 2400]
Hello,
my name's Thomas and I'm a Clojure newbie. :) My background consists
of plenty of enterprise Java, a whole lot of JavaScript, some Ruby,
plus some Scheme (The Little Schemer). I'm finally getting off my butt
and looking at Clojure - looking forward to it. The community looks
really nice
Last week, Per Vognsen answered my first version of this question, how
can I number just the vowels in a string: http://groups.google.com/group/clojure/msg/22186113b36041f1?hl=en
But that got me thinking that numbering was just an instance of
consuming from the (iterate inc 0) sequence.
As I
On 23.03.2010, at 08:55, Raph wrote:
I have tried various hinting methods, but I cannot increase the speed.
What can I do to make the clojure operations as fast as the native
Java operations?
Get rid of the reduce and unroll the bit-or computations instead:
(defn arr-to-int [#^ints x]
Hi Eric,
Eric Thorsen ethor...@enclojure.org writes:
This is more of a maven question probably, but I have an app that
needs versions of the jars built with jdk 1.5 and I'm using the
http://build.clojure.org/snapshots repo where they appear to be built
with 1.6. Are there versions (or plans
Hi,
here some notes:
On Mar 23, 12:53 pm, Douglas Philips d...@mac.com wrote:
(semi-map vowel? list \Hellow Word\ (iterate inc 1))
- (\\H (\\e 1) \\l \\l (\\o 2) \\w \\space \\W (\\o 3) \\r \\d)
I would use vector instead of list in the example since vector is more
idiomatic in
Hi Thomas,
Thomas Kjeldahl Nilsson tho...@kjeldahlnilsson.net writes:
Question: I'm in the very first pages of the 'Programming Clojure'
book. I understand that the language is still young and evolving, and
thus a moving target. What's the best way of getting up to speed? Can
I just go
Hi,
one difference which shows up everywhere, is the method and
constructor notation. While in the book the old is used - (. obj
(method args ...)) - one should stick to the new one - (.method obj
args ...). Similar for Contructors. (note trailing dot) and Static/
methodCalls.
Since I haven't
In addition, right now his Clojure code isn't directly analogous to
his Java code. If he used an array of bytes instead of integers, he
wouldn't need the bit-masking.
Getting this to work revealed a big surprise to me. Java has only
signed integer types: byte, short, int and long. Clojure reads
Sorry, I didn't put that right. 0xFF would only be -1 as a signed
byte. What I'm saying is that the interaction between the type system
of integers and the reader's hexadecimal notation is pretty surprising
to me. In particular, (byte 0xFF) throws an error.
-Per
On Tue, Mar 23, 2010 at 7:35 PM,
I was grabbing the snapshots of clojure and clojure-contrib and using
them in a Netbeans plugin (which needs 1.5. Netbeans just crashes in
an RT call).
(System/getProperty java.vm.version)
The above returns the running jvm version. I was looking at the jar
manifest to see what it was built with
On Mar 22, 9:40 pm, Michael Richter ttmrich...@gmail.com wrote:
On 23 March 2010 00:13, Luc Préfontaine lprefonta...@softaddicts.ca wrote:
I looked at these videos and they are a very good starting point.
Then do we have a communication problem getting these things known ?
Are these
Remember the one-liner I gave you last time?
(defn indexed-pred [pred coll]
(map #(if (pred %1) [%2 %1] [%1]) coll (reductions + 0 (map #(if
(pred %) 1 0) coll
Here's how little it has to change:
(defn funkymonkey [pred src coll]
(map #(if (pred %1) [(first %2) %1] [%1]) coll
I am pretty sure the book uses the idiomatic Java interop forms except
where specifically demonstrating the other forms exist. If that is not
true it is an erratum, please let me know.
Stu
Hi,
one difference which shows up everywhere, is the method and
constructor notation. While in the
Hi,
On Mar 23, 2:18 pm, Stuart Halloway stuart.hallo...@gmail.com wrote:
I am pretty sure the book uses the idiomatic Java interop forms except
where specifically demonstrating the other forms exist. If that is not
true it is an erratum, please let me know.
Uh. Sorry. I was told in the
On Mar 23, 9:08 am, Eric Thorsen eric.thor...@gmail.com wrote:
Having the target=1.5 property set for the clojure-contrib build might
get me where I need to be. I just have not had a chance to try it
yet.
The clojure-contrib build does not call javac, so it shouldn't matter.
-SS
--
You
On Mar 23, 9:08 am, Eric Thorsen eric.thor...@gmail.com wrote:
The above returns the running jvm version. I was looking at the jar
manifest to see what it was built with which is where I saw the 1.6
reference for clojure-contrib.
Oh, it's the JAR manifest that's the problem? Maybe this will
Current version of clojure.contrib.json on the github master branch
uses protocols, and should have better type coverage.
-SS
On Mar 22, 2:24 pm, Jieren Chen jieren.c...@gmail.com wrote:
Hey everyone
I've come across a few situations where the print-json multi-method
does not cover certain
I understand how conj works.But how do you add a value to a
persistent vector?You have to add the new item to the vector with
(conj vector item), but how do you assign the return value to the
persistent vector. So far I have it working with a def -- (def
vector (conj vector item)) --
On Tue, Mar 23, 2010 at 9:35 AM, WoodHacker ramsa...@comcast.net wrote:
I understand how conj works.But how do you add a value to a
persistent vector?You have to add the new item to the vector with
(conj vector item), but how do you assign the return value to the
persistent vector.
On Mar 23, 9:43 am, Stuart Sierra the.stuart.sie...@gmail.com wrote:
If the JAR manifest is the problem, the following pom.xml lines will
change it:
Yet another option is to supply a completely custom manifest file that
omits the Build-Jdk line altogether.
But I still think the correct
By definition, persistent data structures are never mutable. But there
are various kinds of mutable references (vars, refs, atoms, agents)
that can _refer_ to persistent (hence unchanging) data structures.
While David has given you an answer to your immediate query, I would
ask you to step back
The labrepl project (http://github.com/relevance/labrepl) is a
tutorial environment for learning Clojure. It is open source under the
same license as Clojure. Whether you are learning Clojure on your own,
or teaching or learning in a classroom environment, I want labrepl to
be useful to
First off, great work on labrepl! I told people about it last night at
our functional programming user group and they seemed to like the
concept a lot :-)
On Tue, Mar 23, 2010 at 3:13 PM, Stuart Halloway
stuart.hallo...@gmail.com wrote:
(5) Out-of-box experience audit. Is the leiningen-based
On Mar 23, 2010, at 10:13 AM, Stuart Halloway wrote:
The labrepl project (http://github.com/relevance/labrepl) is a
tutorial environment for learning Clojure. It is open source under
the same license as Clojure. Whether you are learning Clojure on
your own, or teaching or learning in a
On Tue, Mar 23, 2010 at 8:40 AM, Per Vognsen per.vogn...@gmail.com wrote:
Sorry, I didn't put that right. 0xFF would only be -1 as a signed
byte. What I'm saying is that the interaction between the type system
of integers and the reader's hexadecimal notation is pretty surprising
to me. In
GIt just needed a little push. It's there now. Thanks Rich!
On Mar 23, 2010, at 10:13 AM, Stuart Halloway wrote:
The labrepl project (http://github.com/relevance/labrepl) is a
tutorial environment for learning Clojure. It is open source under
the same license as Clojure. Whether you are
Hi,
I was experimenting with some code and I had an largish sequence I
did a doseq over. The memory hit the ceiling, which you expect since
even though the head isn't retained GC doesn't happen until you hit
your memory limit (is there a way to change that). Once it hit the
memory limit, 1.2
Interesting. It's Clojure 1.2.0-master-SNAPSHOT as of last week:
Clojure 1.2.0-master-SNAPSHOT
user= 0xff
255
user= (byte 0xff)
java.lang.IllegalArgumentException: Value out of range for byte: 255
(NO_SOURCE_FILE:0)
So, this looks like a new issue. Rich?
-Per
On Tue, Mar 23, 2010 at 8:39 PM,
It doesn't seem very accidental: the namespace binding for 'trees' is
retaining the head. You probably want to wrap it in a function:
(defn trees []
...)
-Per
On Tue, Mar 23, 2010 at 9:40 PM, aria42 ari...@gmail.com wrote:
Hi,
I was experimenting with some code and I had an largish
Whoops duh. That was silly, far to early on the west coast.
On Mar 23, 7:46 am, Per Vognsen per.vogn...@gmail.com wrote:
It doesn't seem very accidental: the namespace binding for 'trees' is
retaining the head. You probably want to wrap it in a function:
(defn trees []
...)
-Per
On
So perhaps it would be worthwhile to create, like jruby, a single zip/
tgz file containing clojure, clojure-contrib, and a reasonable bin/clj
file that will find at least the core clojure jar files on its own? I
don't see how you're going to actually deploy any clojure apps, or
connect to a
On Tue, Mar 23, 2010 at 11:07 AM, cageface milese...@gmail.com wrote:
So perhaps it would be worthwhile to create, like jruby, a single zip/
tgz file containing clojure, clojure-contrib, and a reasonable bin/clj
file that will find at least the core clojure jar files on its own? I
don't see
By the way, you seem to misunderstand some of the workings of GC. In
the kind of generational scheme used in virtually all modern
algorithms, a collection of the nursery (where allocations are first
hatched) will only be forced when the memory assigned to the nursery
is exhausted--not the memory
Stuart's book is by all accounts excellent, but I'm not sure we want
to be in the situation that Ruby once was in, where buying a book
(PragProg's Pickaxe book) was virtually a prerequisite for getting
started.
-Per
On Tue, Mar 23, 2010 at 10:11 PM, Brian Hurt bhur...@gmail.com wrote:
On Tue,
Hello
Stuart Halloway at Tue, 23 Mar 2010 10:37:51 -0400 wrote:
SH GIt just needed a little push. It's there now. Thanks Rich!
It's better to add
plugins
plugin
groupIdcom.theoryinpractise/groupId
artifactIdclojure-maven-plugin/artifactId
version1.3/version
This is awesome, Stuart. With the live web server, a great addition
would be if the embedded code snippets would be interactively runnable
and tweakable right there in the web page. I'll see about hacking that
in myself.
-Per
On Tue, Mar 23, 2010 at 9:13 PM, Stuart Halloway
I just posted a new tutorial about doing logic programming in Clojure.
It makes use of the mini-Kanren port to Clojure I did last year. It's
intended to reduce the learning curve when reading The Reasoned
Schemer, which is an excellent book.
http://intensivesystems.net/tutorials/logic_prog.html
You also get this with the labrepl (http://github.com/relevance/
labrepl) which is free. Plus I am attempting (with a little help from
you all) to keep the labrepl working with various IDEs.
Stu
Stuart's book is by all accounts excellent, but I'm not sure we want
to be in the situation that
I think it is important to be clear about the difference between:
(A) exploring Clojure (non trivially, including interesting Java
libraries)
(B) deploying Clojure into production.
I nominate the labrepl (http://github.com/relevance/labrepl) as a
solution for (A). It already includes
Hi,
On Mar 23, 3:13 pm, Stuart Halloway stuart.hallo...@gmail.com wrote:
(1) NetBeans
(2) CounterClockwise
(3) IDEA
(x) Emacs
Are you also interested in Vim integration?
Sincerely
Meikel
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Hey folks,
I'm looking to add to my bookshelf. I was wondering what this groups
experience with the Schemer series of books is?
Sean
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Absolutely! (Shameful admission: I have never touched Vim in my life.)
I figured leaving it out entirely was the fastest way to entice a
contributor. :-)
Stu
Hi,
On Mar 23, 3:13 pm, Stuart Halloway stuart.hallo...@gmail.com wrote:
(1) NetBeans
(2) CounterClockwise
(3) IDEA
(x) Emacs
The Little Schemer is very basic. The Reasoned Schemer is quite
advanced and definitely a worthwhile read.
If you're looking for excellent Lisp reading material, you can't go
wrong with Steele and Sussman's The Art of the Interpreter and their
Lambda: The Ultimate X series of papers. One of my
At 10:45 AM 3/23/2010, Per Vognsen wrote:
The Little Schemer is very basic. The Reasoned Schemer is quite
advanced and definitely a worthwhile read.
If you're looking for excellent Lisp reading material, you can't go
wrong with Steele and Sussman's The Art of the Interpreter and their
Lambda: The
On 23.03.2010, at 16:45, Per Vognsen wrote:
The Little Schemer is very basic. The Reasoned Schemer is quite
advanced and definitely a worthwhile read.
+1 for The Reasoned Schemer. I never read the other parts.
Lambda: The Ultimate X series of papers. One of my favorite Lisp books
is
Very interesting write up.
What advantages would prolog have over such a language. Or if we are
trying to move beyond language wars - what styles of logic programming
would be more natural in either one or the other?
I say that because my first thought is if you could build a logic
language on
On 23 March 2010 14:13, Stuart Halloway stuart.hallo...@gmail.com wrote:
The labrepl project (http://github.com/relevance/labrepl) is a tutorial
environment for learning Clojure. It is open source under the same license
as Clojure. Whether you are learning Clojure on your own, or teaching or
On Mar 23, 10:37 am, Sean Devlin francoisdev...@gmail.com wrote:
Hey folks,
I'm looking to add to my bookshelf. I was wondering what this groups
experience with the Schemer series of books is?
Sean
Little, seasoned, + the little MLer are awesome, only thing that comes
close in terms of
Sounds like it is time to improve the README. :-)
Run the repl and browse to localhost:8080. Click on a lab to get
started. That's it.
Better than plain HTML:
* Code less susceptible to copy paste errors: it is evaluated in
Clojure before being rendered in the browser. (This doesn't matter
On Tue, Mar 23, 2010 at 4:07 PM, cageface milese...@gmail.com wrote:
So perhaps it would be worthwhile to create, like jruby, a single zip/
tgz file containing clojure, clojure-contrib, and a reasonable bin/clj
file that will find at least the core clojure jar files on its own?
On 23.03.2010, at 18:26, Quzanti wrote:
I say that because my first thought is if you could build a logic
language on top of LISP then would prolog be needed as the other AI
language?
Why do we need the hundreds of programming languages we have? We don't. It's
just that different people have
On Mar 23, 11:09 am, Michael Kohl citizen...@gmail.com wrote:
http://github.com/citizen428/ClojureX/archives/1.1.0
Sorry, really not trying to pitch my project here, but the archive
above basically contains what you are asking for.
Cool. Maybe we could link this and/or Stuart's labrepl from
I love the Little/Seasoned Schemer books. They feel lightweight, both
physically and in content, and I managed to work through them fairly
quickly. It was surprisingly fun. SICP/HTDP/PAIP, on the other hand,
have more of the textbook feel which has so far kept me from working
through them.
The
Hi,
On Tue, Mar 23, 2010 at 11:37:13AM -0400, Stuart Halloway wrote:
Absolutely! (Shameful admission: I have never touched Vim in my life.)
I figured leaving it out entirely was the fastest way to entice a
contributor. :-)
Hehe. And I should learn to stay quiet. :)
Sincerely
Meikel
--
I've got to say that I'm not a logic programming guru. Mostly I just
see the promise there. The observation about graph search came from
the book Simply Logical that I linked to at the end, I believe. I
certainly didn't originate it.
If you check out Oleg's page, you'll find a lot of papers about
I like where this is going but I would suggest that there's a significant
audience (including me and most of my students) in what we might call category
A.01: Want to explore and even do some real work, but not necessarily work
involving deploying apps, connecting to databases, working with
As well as optimizing compilers, there are many knowledge bases
available for prolog. Most people with a practical application that
needs an expert system are probably far more invested in that
knowledge base (the prolog code is a 'knowledge base') than in
anything else.
--
You received this
Lein is a command line tool that you can use independently of your
environment. 99.9% sure you won't break anything by installing it.
Is this right Phil?
Sean
On Mar 23, 2:53 pm, Lee Spector lspec...@hampshire.edu wrote:
I like where this is going but I would suggest that there's a
Labrepl (via leiningen) puts jars in a local lib directory. They
shouldn't collide with to break anything else.
Stu
Lein is a command line tool that you can use independently of your
environment. 99.9% sure you won't break anything by installing it.
Is this right Phil?
Sean
On Mar 23,
I'll know that this problem is solved when the Setup and Getting
Started sections of the main Getting Started page resemble this:
-
For debian and Ubuntu users:
apt-get install clojure
For Fedora and CentOS users:
yum install clojure
For other distributions:
wget XXX.tgz
tar
On 23 March 2010 23:11, Brian Hurt bhur...@gmail.com wrote:
On Tue, Mar 23, 2010 at 11:07 AM, cageface milese...@gmail.com wrote:
So perhaps it would be worthwhile to create, like jruby, a single zip/
tgz file containing clojure, clojure-contrib, and a reasonable bin/clj
file that will find
On Mar 23, 10:13 am, Stuart Halloway stuart.hallo...@gmail.com
wrote:
The labrepl project (http://github.com/relevance/labrepl) is a
tutorial environment for learning Clojure. It is open source under the
same license as Clojure. Whether you are learning Clojure on your own,
or teaching
On 2010 Mar 23, at 9:14 AM, Per Vognsen wrote:
Remember the one-liner I gave you last time?
Yup. It was the 'hard coded + 0' parts that had been ruminating in the
back of my mind as being something that could be abstracted out. :)
Since the one you just posted didn't have all the features
Sorry, I copied the wrong snippet from my repl - the correct one is:
...
user (= (.getBytes a)(.getBytes a))
false
user (= (seq (.getBytes a)) (seq (.getBytes a)))
true
...
although the previous extra (bytes...) doesn't change the example, it may add
to the confusion ;-)
-FS/
On Mar 23,
My REPL shows:
...
user (= (bytes (.getBytes a))(bytes (.getBytes a)))
false
user (= (seq (bytes (.getBytes a))) (seq (bytes (.getBytes a
true
...
in other words, equality for java byte arrays is defined differently than
their seq'ed version.
It seems that the native arrays are compared on
On 2010 Mar 23, at 8:26 AM, Meikel Brandmeyer wrote:
here some notes:
Thanks!
I would use vector instead of list in the example since vector is more
idiomatic in Clojure.
Ok. Just my old lisp roots showing. Still haven't gotten the fingers/
spine
rewired to use [] around defn parameters.
I second Lee's thought -- my work as a grad student is AI research,
not application development. I'm glad I discovered Incanter's package
(three lines of instructions [1]) that allows me to run a Swank server
that I can easily connect to from Emacs (and Slime from the Emacs end
can be easily
I'm trying to reproduce ProcessBuilder example from java documentation
http://java.sun.com/javase/6/docs/api/java/lang/ProcessBuilder.html
This is that example:
ProcessBuilder pb = new ProcessBuilder(myCommand, myArg1,
myArg2);
MapString, String env = pb.environment();
env.put(VAR1, myValue);
On Tue, 23 Mar 2010 08:37:06 -0700 (PDT)
Sean Devlin francoisdev...@gmail.com wrote:
I'm looking to add to my bookshelf. I was wondering what this groups
experience with the Schemer series of books is?
Yes, The Little Schemer is nice when you need to learn recursion. I
currently read The
I am considering developing for Android using clojure, but I gather
it's slow to start up. I'm wondering whether the startup delay would
be substantially reduced in a dumped version of clojure. This would
be an image which already contains initialized versions of most of the
data structures
Does anyone know of any existing libraries for clojure that has code
which is optimized to list all of the factors of any given integer?
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I'm starring that post. Still haven't gotten Aquamacs working with
clojure. will try yet again tonight.
On Tue, Mar 23, 2010 at 3:28 PM, Carson c.sci.b...@gmail.com wrote:
I second Lee's thought -- my work as a grad student is AI research,
not application development. I'm glad I discovered
On 23 March 2010 12:31, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
one difference which shows up everywhere, is the method and
constructor notation. While in the book the old is used - (. obj
(method args ...)) - one should stick to the new one - (.method obj
args ...). Similar for
On Tue, Mar 23, 2010 at 8:57 PM, Alex Coventry coven...@gmail.com wrote:
I am considering developing for Android using clojure, but I gather
it's slow to start up.
I thought there are some issues re the Dalvik VM and Clojure? Does
anyone have experience with this?
--
You received this message
Hi,
On Tue, Mar 23, 2010 at 01:33:54PM -0400, Douglas Philips wrote:
(let [[s1 s1tail] seq1
Don't use this destructuring in this case, because it forces again the
realisation of the seq one step ahead.
If I need s1 anyways, what is the one step ahead part that you
refer to?
On Mar 23, 1:04 pm, Robert Lally rob.la...@gmail.com wrote:
On 23 March 2010 12:31, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
one difference which shows up everywhere, is the method and
constructor notation. While in the book the old is used - (. obj
(method args ...)) - one should
Stuart Halloway stuart.hallo...@gmail.com writes:
The labrepl project (http://github.com/relevance/labrepl) is a
tutorial environment for learning Clojure. It is open source under the
same license as Clojure. Whether you are learning Clojure on your own,
or teaching or learning in a classroom
On Mar 23, 1:02 pm, Glen Rubin rubing...@gmail.com wrote:
Does anyone know of any existing libraries for clojure that has code
which is optimized to list all of the factors of any given integer?
(defn factors [x]
integer - vector[integers]
(loop [xf [] i 2]
(if ( (* i i) x)
(vec
On 23 March 2010 20:16, ataggart alex.tagg...@gmail.com wrote:
On Mar 23, 1:04 pm, Robert Lally rob.la...@gmail.com wrote:
On 23 March 2010 12:31, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
one difference which shows up everywhere, is the method and
constructor notation. While
1.3.2 is the latest version of the plugin and fixes some issues with the
replScript settings ( it actually continues to run the repl, and not just
exits - doh!)
--
Pull me down under...
On Wed, Mar 24, 2010 at 4:16 AM, Alex Ott alex...@gmail.com wrote:
Hello
Stuart Halloway at Tue, 23 Mar
I'll do the counterclockwise review tonight, review soon to come
2010/3/23 Stuart Halloway stuart.hallo...@gmail.com:
The labrepl project (http://github.com/relevance/labrepl) is a tutorial
environment for learning Clojure. It is open source under the same license
as Clojure. Whether you are
Hi,
On Tue, Mar 23, 2010 at 08:04:34PM +, Robert Lally wrote:
I ask because I found that every time I wanted to change my code from
(.method1 object) to (.. object method1 method2) it would have been easier
if the code were (. object method1) moving to (.. object method1 method2)
and,
Hi Konstantin,
From JDK docs (
http://java.sun.com/j2se/1.5.0/docs/api/java/lang/ProcessBuilder.html#environment%28%29
):
The behavior of the returned map is system-dependent. A system may not allow
modifications to environment variables or may forbid certain variable names
or values. For this
You want Clojure to treat 'env' as a Map instead of its implementation
class, which is not public. Just add the type hint #^Map to 'env''s
def:
user= (def pb (new ProcessBuilder [myCommand myArg]))
#'user/pb
user= (def #^Map env (.environment pb))
#'user/env
user= (.put env VAR1, myValue)
myValue
Whoops... I completely glazed over the fact that the equivalent Java code
worked perfectly :(
On 24 March 2010 11:19, Armando Blancas armando_blan...@yahoo.com wrote:
You want Clojure to treat 'env' as a Map instead of its implementation
class, which is not public. Just add the type hint #^Map
On 2010 Mar 23, at 4:13 PM, Meikel Brandmeyer wrote:
(let [[s1 s1tail] seq1
In the above destructuring the first element of s1tail is also
realised.
That is what I mean with one step ahead. I'm not sure why it is done
like this. I does not seem necessary. But I'm not an expert in
For laziness analysis, I typically use code like this:
(defn trace-seq* [name xs]
(for [x xs]
(do (println (str name : x))
x)))
(defmacro trace-seq [xs]
`(trace-seq* ~(str xs) ~xs))
If I use it on the code I posted, I get this:
user (take 3 (scan-filter-zip even? (trace-seq
I'm sure that code would be useful if he were looking for a slow
implementation of a slow algorithm. I believe he asked for an
optimized algorithm. An example might be Lenstra's elliptic curve
factorization or the general number field sieve. I don't know of any
implementations in Clojure but there
On 2010 Mar 23, at 9:28 PM, Per Vognsen wrote:
So you can see that scan-filter-zip is lazy in the source sequence but
apparently not the primary input sequence. That was surprising to me
because I see nothing in my code that should have forced that. Then I
remember that some functions like range
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