On Fri, Dec 4, 2009 at 7:40 PM, Luc Préfontaine lprefonta...@softaddicts.ca
wrote:
I was about to say that. There's no need for the id's to be contiguous,
only to get them to grow to preserve ordering.
If you can find a way in your design to increment the atom each time a
transaction is
On Fri, Dec 4, 2009 at 2:49 PM, Richard Newman holyg...@gmail.com wrote:
The problem is that it is an unreasonably high barrier to entry.
There MUST be an electronic-only way (and it must not require a cell
phone, CC#, c.) if the full potential of this community is to be
unleashed upon
On Thu, Dec 3, 2009 at 10:41 AM, Stephen C. Gilardi squee...@mac.comwrote:
On Dec 3, 2009, at 10:31 AM, Roman Roelofsen wrote:
Are there any plans to add -$ to core or contrib?
The rules on contrib are that the work must be original to the author. Even
with Andrew's disclaimer that it be
On Thu, Dec 3, 2009 at 6:31 PM, Sergey Didenko sergey.dide...@gmail.comwrote:
Well, I'm not fluent with git yet. I'll create the github project, that can
not be hard.
In comparison with Prevayler, the persister does not block the reads,
because it relies on Clojure STM. However it blocks
On Fri, Dec 4, 2009 at 4:41 AM, Lauri Pesonen lauri.peso...@iki.fi wrote:
2009/12/2 Matthew Williams matthew.d.willi...@gmail.com:
Using the Cocoa build of Emacs 23 (http://www.emacsformacosx.com) I
was able to get up and running extremely quickly with Technomancy's
swank-clojure install.
On Fri, Dec 4, 2009 at 6:51 AM, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
On 4 Dez., 05:17, John Harrop jharrop...@gmail.com wrote:
The rules on contrib are that the work must be original to the author.
Even
with Andrew's disclaimer that it be considered public domain, he would
still
On Fri, Dec 4, 2009 at 8:57 AM, Miron Brezuleanu mbr...@gmail.com wrote:
On Fri, Dec 4, 2009 at 2:33 PM, John Harrop jharrop...@gmail.com wrote:
The problem is that it is an unreasonably high barrier to entry. There
MUST
be an electronic-only way (and it must not require a cell phone, CC
On Wed, Dec 2, 2009 at 5:43 PM, Don josereyno...@gmail.com wrote:
I am having difficulty approaching this problem. I'm not sure if it
can be done in one swoop, or requires a few steps.
I have 5 vectors as such:
a [2 4 6 7]
b [1 3 9 2]
c [2 4 5 6]
d [6 1 3 8]
e [4 8 2 1]
And I want to
On Mon, Nov 30, 2009 at 9:57 PM, Base basselsm...@gmail.com wrote:
Hi
I have a database that has a table with complex java objects stored in
a binary field.
In java i would do something like:
protected Object read(byte[] buf){
Object obj = null;
if (buf==null) return obj;
On Tue, Dec 1, 2009 at 8:30 PM, Alex Osborne a...@meshy.org wrote:
Clojure would be challenging language to start with, as (all?) the books
and documentation are aimed at people who are already programmers. But
if you like a challenge then perhaps that's even a good thing. If
you're already
On Mon, Nov 30, 2009 at 7:07 AM, Joseph Smith j...@uwcreations.com wrote:
setScale returns a new BigDecimal with a given scale, it does not change
the original value.
I did not claim otherwise. The effect of with-precision is like an implicit
(.setScale foo) around every BigDecimal foo, only
One benefit of having a REPL: it makes regular expressions usable. So easy
to test and tweak your RE compared to the traditional compile/test/debug
cycle! I never even bothered with the java.util.regex package before Clojure
as it was too painful to use.
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On Thu, Nov 26, 2009 at 4:37 AM, Chris Jenkins cdpjenk...@gmail.com wrote:
(defn flip-cell [b x y]
(let [row (nth b y)
cell (nth row x)
new-cell (- 1 cell)
new-row (assoc row x new-cell)]
(assoc b y new-row)))
(defn flip-cell [b x y]
(update-in b [y x] #(- 1 %)))
:)
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On Fri, Nov 27, 2009 at 8:45 AM, Stefan Kamphausen
ska2...@googlemail.comwrote:
Why? Well because #^ attaches the metadata to the next read form.
What's the next read form? It's 'greet. But in fact 'greet is just
sugar for (quote greet). So we're actually affixing the metadata to a
We're maintaining a large database of tagged images and had a need to
perform fuzzy search of the database. The existing search tool takes exact
queries only. So it was necessary to hack up a little tool to sit between
the query source and the engine and transform the query into a fuzzy
query. You
On Fri, Nov 27, 2009 at 12:46 PM, Richard Newman holyg...@gmail.com wrote:
Maybe this ought to be fixed; i.e., if the reader sees #^{meta} 'foo
it applies the metadata to foo first, then quotes it, resulting in
the same thing as (quote #^{meta} foo).
Why introduce that special case, when
On Fri, Nov 27, 2009 at 1:23 PM, John Harrop jharrop...@gmail.com wrote:
On Fri, Nov 27, 2009 at 12:46 PM, Richard Newman holyg...@gmail.comwrote:
Maybe this ought to be fixed; i.e., if the reader sees #^{meta} 'foo
it applies the metadata to foo first, then quotes it, resulting
On Fri, Nov 27, 2009 at 7:48 PM, André Thieme
splendidl...@googlemail.comwrote:
Let‘s say we have the functions A, B, C, D, E, F and G.
A is calling B, B is calling C, C is calling D, and so on.
Now a request R1 comes in, function A is called and this chain
continues to,
say, E.
Now a
On Wed, Nov 25, 2009 at 12:40 PM, Gabi bugspy...@gmail.com wrote:
Very interesting indeed. I am not sure I understand completely, but by
intuition I presume that the recursive call actually creates a new
heap allocated LazySeq (with the function definition inside) .
Not quite; it creates a
On Tue, Nov 24, 2009 at 1:04 AM, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
On Nov 24, 6:06 am, John Harrop jharrop...@gmail.com wrote:
Oh, I have no problem with making money by using open source software,
when
it's done in the manner that companies like Red Hat do it. It's the use
On Tue, Nov 24, 2009 at 6:01 AM, kony kulakow...@gmail.com wrote:
Hi,
I found that resolve does not work correctly (I guess) when it is
called from other thread than main:
e.g.
let define
(def zz 123)
and afterwords call:
(.start (new Thread #(println (resolve 'zz
for me it
On Mon, Nov 23, 2009 at 4:34 PM, Sergey Didenko sergey.dide...@gmail.comwrote:
Hi,
Andre, Danny's first approach is about syncing only on the root
object, so that every piece of data is behind one deref:
(def root (ref {:persons [ ... no other refs here... ]))
This approach is simpler to
On Mon, Nov 23, 2009 at 8:35 PM, Phlex ph...@telenet.be wrote:
i'd be interested to hear who has successfully used clojure in
production.
Hello,
1- We have this license server, used to control the use of a
professional software (this one written using delphi).
What are the ethics of
On Mon, Nov 23, 2009 at 9:47 PM, Richard Newman holyg...@gmail.com wrote:
1- We have this license server, used to control the use of a
professional software (this one written using delphi).
What are the ethics of using an open source product like Clojure to
implement DRM restrictions for
On Sun, Nov 22, 2009 at 6:05 AM, Michael Wood esiot...@gmail.com wrote:
You've got some kind of system problem confounding your results, I'll
bet.
It got slower? One test actually hung?
My suspicion, of course, lies with the emacs environment you've just
confessed to using. Half the
On Sun, Nov 22, 2009 at 7:54 AM, Emeka emekami...@gmail.com wrote:
John,
You should have added that you code came from Programming Clojure.
It didn't. If it's the same as, or closely similar to, code from there, it's
entirely coincidental.
In Clojure there's usually several ways to do
How is it pronounced anyway, at the start? LINE... or LANE...?
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On Sun, Nov 22, 2009 at 12:55 PM, David Brown cloj...@davidb.org wrote:
java.nio.channels.FileChannel contains some .write methods:
[27] write : int (ByteBuffer)
[28] write : int (ByteBuffer,long)
[29] write : long (ByteBuffer[])
[30] write : long (ByteBuffer[],int,int)
I have an array of
Is there an explanation of monads out there that doesn't require the reader
to know Haskell to understand it? One that's generic to any FP-capable
language?
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On Sun, Nov 22, 2009 at 4:32 PM, samppi rbysam...@gmail.com wrote:
Does a function that does this:
(vary coll :x fn-x, :y fn-y)
; Equivalent to (assoc coll :x (fn-x (:x coll)), :y (fn-y (:y
coll)))
exist in the core or contrib APIs?
I'm surprised that I can't find any. It's a very
On Sun, Nov 22, 2009 at 4:25 PM, Martin DeMello martindeme...@gmail.comwrote:
On Mon, Nov 23, 2009 at 2:40 AM, John Harrop jharrop...@gmail.com wrote:
Is there an explanation of monads out there that doesn't require the
reader
to know Haskell to understand it? One that's generic to any FP
One place where interop needs improvement: imports.
This is ridiculous:
#CompilerException java.lang.ClassNotFoundException: java.awt
(NO_SOURCE_FILE:0)
sandbox=
#CompilerException java.lang.ClassCastException:
clojure.lang.LazilyPersistentVector cannot be cast to clojure.lang.Symbol
On Sat, Nov 21, 2009 at 8:30 PM, David Brown cloj...@davidb.org wrote:
On Fri, Nov 20, 2009 at 06:37:18PM +, Jim Downing wrote:
I might have misunderstood, but isn't the problem the same as in Java;
you can't know from a static analysis which classes are going to be
loaded?
Except that
On Sat, Nov 21, 2009 at 8:47 PM, David Brown cloj...@davidb.org wrote:
On Fri, Nov 20, 2009 at 03:54:45PM -0800, Mike Hinchey wrote:
It's the . special form that makes the difference. In (. System
(getProperty)), the dot interprets System as a class and looks for a
static
method (at
On Sat, Nov 21, 2009 at 8:57 PM, David Brown cloj...@davidb.org wrote:
On Sat, Nov 21, 2009 at 08:42:26PM -0500, John Harrop wrote:
Are you talking about binding things like String.class to vars referenced
by
symbols like String?
Not just String.class, every single class referenced
On Sat, Nov 21, 2009 at 11:21 PM, David Brown cloj...@davidb.org wrote:
On Sat, Nov 21, 2009 at 11:14:52PM -0500, John Harrop wrote:
1 second instead of 1/6 of a second. Yeah, like users will notice that
difference in startup times. :)
I'm not actually complaining, but I do notice every
On Sat, Nov 21, 2009 at 11:43 PM, Alex Osborne a...@meshy.org wrote:
John Harrop wrote:
On Sat, Nov 21, 2009 at 9:03 PM, Alex Osborne a...@meshy.org
(:import package1 class class class) (:import package2 class class)
I am. Especially since the latter already works.
Alternatively
On Fri, Nov 20, 2009 at 2:28 PM, Richard Newman holyg...@gmail.com wrote:
But I should be able to know, through class inspection, whether my
'main' program depends on a class which uses, say, the clojure.zip
namespace, and decide whether or not to include it. Or so I am
wondering.
There
On Fri, Nov 20, 2009 at 5:16 PM, Raoul Duke rao...@gmail.com wrote:
Try with a 1.6 JVM...
wow. it actually got worse than when i was using 1.5. ... so much for
hallowed write-once-run-the-same-anywhere-ish of the jvm, d'oh.
Clojure 1.1.0-alpha-SNAPSHOT
user= (load-file /tmp/test.clj)
On Thu, Nov 19, 2009 at 4:31 AM, Lauri Pesonen lauri.peso...@iki.fi wrote:
(clojure.walk/macroexpand-all '(cond (even? 2) :foo (odd? 2) :bar :else
:baz))
(if (even? 2) :foo (if (odd? 2) :bar (if :else :baz nil)))
Eeeuw. Perhaps the cond macro should check if the last condition is
On Thu, Nov 19, 2009 at 1:23 PM, Sean Devlin francoisdev...@gmail.comwrote:
Try clojure.contrib.seq-utils :)
As a learning exercise, I'd recommend re-writing it to be lazy. Your
version is eager because it uses loop. In order to make it lazy,
you'd want to construct a lazy-seq. See the
On Thu, Nov 19, 2009 at 2:39 PM, Timothy McDowell tmcdow...@gmail.comwrote:
unsubscribe
Interesting. Most mailing lists I subscribe to get one of these a week, or
even a day. This is the first missent unsubscribe the clojure list's had in
months.
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On Thu, Nov 19, 2009 at 7:00 PM, Sean Devlin francoisdev...@gmail.comwrote:
That's why there are two separate functions do do what you suggest
user=(interleave [1 2 3 4] [1 2 3 4])
(1 1 2 2 3 3 4 4)
user= (concat [1 2 3 4] [1 2 3 4])
(1 2 3 4 1 2 3 4)
Poor choice of example. I think he
On Thu, Nov 19, 2009 at 7:15 PM, Alex Osborne a...@meshy.org wrote:
John Harrop wrote:
On Thu, Nov 19, 2009 at 7:00 PM, Sean Devlin francoisdev...@gmail.com
mailto:francoisdev...@gmail.com wrote:
That's why there are two separate functions do do what you suggest
user
On Thu, Nov 19, 2009 at 7:51 PM, Alex Osborne a...@meshy.org wrote:
John Harrop wrote:
This is just (sort (concat [1 2 3 4 5 6 7] [3 2 7])) though.
I think he also wants the original order of the first input coll to be
preserved, though. Sort wouldn't do that.
Hmmm.. that's
On Thu, Nov 19, 2009 at 9:17 PM, Mark Triggs mark.h.tri...@gmail.comwrote:
A good example is:
(take 10 (repeatedly #(rand-int 100)))
to get a bunch of random integers. I actually quite like this idiom,
even if there's a bit of ascii involved :)
Why not abstract it some, though?
(defn
On Tue, Nov 17, 2009 at 8:40 AM, Jacek Laskowski ja...@laskowski.net.plwrote:
Hi,
I'm wondering what part is missing in which provides a means for
nested contexts to communicate with code before it the call stack. at
http://clojure.org/vars? I think the wording is broken at the end.
On Tue, Nov 17, 2009 at 1:46 PM, Sean Devlin francoisdev...@gmail.comwrote:
I *THINK* what is meant by the non-numeric is anything that matches
#[a-zA-z]
Nah, it'll be anything that's allowed elsewhere AND is not a digit.
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On Tue, Nov 17, 2009 at 2:17 PM, Stefan Kamphausen
ska2...@googlemail.comwrote:
Hi,
On Nov 17, 8:12 pm, John Harrop jharrop...@gmail.com wrote:
On Tue, Nov 17, 2009 at 1:46 PM, Sean Devlin francoisdev...@gmail.com
wrote:
I *THINK* what is meant by the non-numeric is anything
On Tue, Nov 17, 2009 at 2:31 PM, Chouser chou...@gmail.com wrote:
On Tue, Nov 17, 2009 at 8:40 AM, Jacek Laskowski ja...@laskowski.net.pl
wrote:
I'm wondering what part is missing in which provides a means for
nested contexts to communicate with code before it the call stack. at
On Tue, Nov 17, 2009 at 3:59 PM, nchubrich nicholas.chubr...@gmail.comwrote:
How do you def a symbol that you make using (symbol)? I.E. if I try
to do (def (symbol x) 2) I get:
java.lang.Exception: Second argument to def must be a Symbol. (And
why does it say the \second argument must be a
On Tue, Nov 17, 2009 at 4:22 PM, Chouser chou...@gmail.com wrote:
On Tue, Nov 17, 2009 at 4:11 PM, John Harrop jharrop...@gmail.com wrote:
On Tue, Nov 17, 2009 at 3:59 PM, nchubrich nicholas.chubr...@gmail.com
wrote:
How do you def a symbol that you make using (symbol)? I.E. if I try
On Tue, Nov 17, 2009 at 5:06 PM, Sean Devlin francoisdev...@gmail.comwrote:
Heh. Learn something new every day.
This also works
(into {} (System/getProperties))
And I'd much prefer it. Passing a mutable Java map around to functions that
expect a map but assume it will never change out
On Tue, Nov 17, 2009 at 6:24 PM, Richard Newman holyg...@gmail.com wrote:
I wonder if perhaps (into {} a-java-map) should work but no other
substitutions of a potentially-mutable map for a Clojure map.
Baby, bathwater. Making a persistent map out of a Java map is
expensive. Not everything
On Mon, Nov 16, 2009 at 2:16 AM, Michael Wood esiot...@gmail.com wrote:
This is what I get with or without rlwrap from the command line. No
IDE or anything like that:
Clojure 1.1.0-alpha-SNAPSHOT
user= ; some comment
user= #! something
(println blah)
blah
nil
user=
i.e. the same as
On Sun, Nov 15, 2009 at 8:28 PM, Rich Hickey richhic...@gmail.com wrote:
On Sun, Nov 15, 2009 at 4:49 AM, ajuc aju...@gmail.com wrote:
On 15 Lis, 00:21, John Harrop jharrop...@gmail.com wrote:
On Sat, Nov 14, 2009 at 3:03 PM, ajuc aju...@gmail.com wrote:
I have to install java one more
On Mon, Nov 16, 2009 at 12:42 AM, solussd solu...@gmail.com wrote:
I just finished an implementation of the Conway's Game of Life
derivative, Highlife, in Clojure. It consists of a simple swing GUI
and makes good use of Refs for coordinating grid updates. A more
detailed description, source,
On Mon, Nov 16, 2009 at 7:20 PM, Kent squi...@aol.com wrote:
Hi,
I am trying to use clojure to implement a plugin for some vendor
supplied software.
Here is a little background on the vendor supplied software. It
expects me to implement a particular interface and then put the jar
file
On Sun, Nov 15, 2009 at 4:49 AM, ajuc aju...@gmail.com wrote:
On 15 Lis, 00:21, John Harrop jharrop...@gmail.com wrote:
On Sat, Nov 14, 2009 at 3:03 PM, ajuc aju...@gmail.com wrote:
I have to install java one more time, when I try to start java -
server, I get:
Error: no `server' JVM
On Sun, Nov 15, 2009 at 8:45 AM, Michael Wood esiot...@gmail.com wrote:
2009/11/14 John Harrop jharrop...@gmail.com:
On Sat, Nov 14, 2009 at 1:42 PM, Richard Newman holyg...@gmail.com
wrote:
I like CL's package support for this kind of situation, where
unexported symbols can still
Interesting. It looks like Clojure's missing a few obvious optimizations,
and is reconstructing the literal structure each time the function is
called, or each time the value is used if the literal is directly at point
of use.
On the other hand, deref of a global is not exactly blindingly fast
On Sat, Nov 14, 2009 at 6:03 PM, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
Am 14.11.2009 um 20:31 schrieb John Harrop:
For situations like this, I find it handy to discover what reader-macros
are expanding to. This works well:
user=(defmacro expand [arg] (println arg))
#'user/expand
On Sun, Nov 15, 2009 at 7:32 PM, Alex Osborne a...@meshy.org wrote:
ajuc wrote:
I would like to somehow hide the global hilbert-map into my function,
but I can't see how to do that.
Is this possible? I know that I can just inert literal into my let,
but that degrades performance, when
On Sun, Nov 15, 2009 at 8:17 PM, David Brown cloj...@davidb.org wrote:
On Sun, Nov 15, 2009 at 04:20:19PM -0500, John Harrop wrote:
That's weird. It's not documented anywhere on the site. And it seems to
hang
the REPL:
user= nil #!foo
and nothing. Enter doesn't print nil and a fresh
On Sat, Nov 14, 2009 at 3:45 AM, Mark Engelberg mark.engelb...@gmail.comwrote:
On Fri, Nov 13, 2009 at 12:58 AM, Konrad Hinsen
konrad.hin...@fastmail.net wrote:
Coming from a Python background, I don't think access restrictions are
necessary. However, flagging fields as not meant for use by
On Sat, Nov 14, 2009 at 8:55 AM, Albert Cardona sapri...@gmail.com wrote:
On Fri, Nov 13, 2009 at 11:26 PM, Mike Hogye stacktra...@gmail.com
wrote:
Why is there an easy way to def a private function (defn-), but no
similarly easy way to def an arbitrary var as private?
The way I see it,
On Sat, Nov 14, 2009 at 6:19 AM, ajuc aju...@gmail.com wrote:
I would like to somehow hide the global hilbert-map into my function,
but I can't see how to do that.
Just put the literal directly into the function.
Is this possible? I know that I can just inert literal into my let,
On Sat, Nov 14, 2009 at 11:42 AM, André Thieme
splendidl...@googlemail.comwrote:
Dereferencing *persons* will result in:
{Tina #r...@7ae6d: {:name Tina, :age 19, :friends []},
Jeff #r...@125d92c: {:name Jeff, :age 22, :friends []},
Karl #r...@14fa0ef: {:name Karl, :age 20, :friends []}}
On Sat, Nov 14, 2009 at 2:11 PM, John Harrop jharrop...@gmail.com wrote:
On Sat, Nov 14, 2009 at 11:42 AM, André Thieme
splendidl...@googlemail.com wrote:
Dereferencing *persons* will result in:
{Tina #r...@7ae6d: {:name Tina, :age 19, :friends []},
Jeff #r...@125d92c: {:name Jeff, :age
On Sat, Nov 14, 2009 at 12:49 PM, Kevin Q kevin.jing@gmail.com wrote:
I have a list of agents, each of which has a hasmap state. I want to
get a list of values from the list of agents, naturally I used the map
function and print the result of the map:
(println
(map #(@%) agents))
On Sat, Nov 14, 2009 at 1:42 PM, Richard Newman holyg...@gmail.com wrote:
I like CL's package support for this kind of situation, where
unexported symbols can still be reached via foo::bar, at the cost of
an obvious code smell.
This suggests an alternate fix for the private functions in
On Sat, Nov 14, 2009 at 3:03 PM, ajuc aju...@gmail.com wrote:
I have to install java one more time, when I try to start java -
server, I get:
Error: no `server' JVM at `F:\Program Files\Java\jre6\bin\server
\jvm.dll
You need to use the one in F:\Program Files\Java\jdk6 instead.
I'm
On Sat, Nov 14, 2009 at 2:51 PM, Kevin Q kevin.jing@gmail.com wrote:
Hi,
Thanks for the hint. I tried (map deref agents) and it did work. I
don't know if this is a bug?
Nah, it's just being really sneaky.
(fn* [p1__6536] ((clojure.core/deref p1__6536)))
Even I didn't notice it
On Sat, Nov 14, 2009 at 3:24 PM, John Harrop jharrop...@gmail.com wrote:
On Sat, Nov 14, 2009 at 2:51 PM, Kevin Q kevin.jing@gmail.com wrote:
Hi,
Thanks for the hint. I tried (map deref agents) and it did work. I
don't know if this is a bug?
Nah, it's just being really sneaky
On Fri, Nov 13, 2009 at 1:23 PM, Chouser chou...@gmail.com wrote:
On Wed, Nov 11, 2009 at 4:24 PM, John Harrop jharrop...@gmail.com wrote:
One question: how would Java class imports be dealt with? I think it
should
be unified:
(ns foo
(uses java.io :only [File FileInputStream] :as io
On Fri, Nov 13, 2009 at 6:48 PM, ajuc aju...@gmail.com wrote:
Hello.
I've tried to translate nice Hilbert-curve-index calculating function
to clojure (http://blog.notdot.net/2009/11/Damn-Cool-Algorithms-
Spatial-indexing-with-Quadtrees-and-Hilbert-Curves).
I've got sth like that:
(def
On Fri, Nov 13, 2009 at 8:50 PM, Mark Engelberg mark.engelb...@gmail.comwrote:
Rich, thanks for the extended explanation of the overlap between the
old and new constructs; I found this explanation much clearer than
what is currently on the wiki. Basically, the key for me was
realizing that
On Wed, Nov 11, 2009 at 1:12 PM, Stephen C. Gilardi squee...@mac.comwrote:
Before:
(:refer-clojure :exclude [read])
(:require (clojure.contrib [graph :as graph] [fcase :as fcase])
[clojure.contrib.stream-utils :as su])
(:use [clojure.contrib def except server-socket]
On Wed, Nov 11, 2009 at 3:54 PM, Laurent PETIT laurent.pe...@gmail.comwrote:
2009/11/11 Andrew Boekhoff boekho...@gmail.com:
(:uses [clojure.core :exclude [read])
[clojure.contrib.graph]
[clojure.contrib.fcase]
[clojure.contrib.stream-utils :as su]
On Wed, Nov 11, 2009 at 2:04 PM, Nick Day nicke...@gmail.com wrote:
Hi,
I've been trying to implement a topological sort and have been
struggling a bit. I have a map of symbol vs collection of symbols
like:
{a [b c], b [c], c [nil]}
which can be read as 'a' depends on 'b' and 'c', 'b'
On Wed, Nov 11, 2009 at 10:46 PM, Kevin Tucker tuckerke...@gmail.comwrote:
Yeah, sorry, missed that.
How does making the gensyms unreadable make things worse for
macroexpand than they are in CL?
It doesn't. Just worse than they currently are in Clojure. :)
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On Mon, Nov 9, 2009 at 10:04 PM, Kevin Tucker tuckerke...@gmail.com wrote:
I in CL they can be read but aren't interned in any package so every
time you read it you get a different symbol.
Yes, I know; I said that myself in the first post. But your first post
inspired in me the idea of simply
On Tue, Nov 10, 2009 at 1:00 AM, Richard Newman holyg...@gmail.com wrote:
I have a vector a [ [2 3] [4 5] [6 7] ]
And I want to be able to get [2 3 4 5 6 7]
user= (reduce into [ [2 3] [4 5] [6 7] ])
[2 3 4 5 6 7]
This and another solution have already been posted, but there's also:
On Tue, Nov 10, 2009 at 7:21 AM, Rich Hickey richhic...@gmail.com wrote:
Right - pervasive locals clearing will definitely do the trick here.
Interestingly, when I was at Microsoft and asked them about handling
this issue for the CLR they stated plainly it wasn't an issue at all -
their
On Tue, Nov 10, 2009 at 10:41 AM, pmf phil.fr...@gmx.de wrote:
On Nov 10, 7:07 am, David Brown cloj...@davidb.org wrote:
Ok. So, it's the existence of this future-like entity that blocks
upon deref until filled is indeed somewhat missing. It's not
particularly difficult to implement.
On Tue, Nov 10, 2009 at 11:41 AM, John Harrop jharrop...@gmail.com wrote:
user= (take 10 (p-lazy-seq 3 true (thread-local-rand 10)))
(1 2 6 1 5 1 7 8 4 3)
This should generate the random numbers on multiple threads, using multiple
RNGs. In the limit, on multicore hardware and with a slow
So I have
(ns foo.bar.baz)
and I want to grab clojure.contrib.core/seqable?
What do I do?
(ns foo.bar.baz
(use clojure.contrib.core :only seqable?))
#CompilerException java.lang.IllegalArgumentException: Don't know how to
create ISeq from: Boolean (NO_SOURCE_FILE:0)
(ns foo.bar.baz
(use
On Tue, Nov 10, 2009 at 9:11 PM, Richard Newman holyg...@gmail.com wrote:
(ns foo.bar.baz
(:use [clojure.contrib.core :only (seqable?)]))
(and thus violates the usual clojure rule of using vectors rather
than lists for groupings that are not invocations -- that is,
function calls,
On Sun, Nov 8, 2009 at 5:56 PM, Kevin Tucker tuckerke...@gmail.com wrote:
This is something that I have been wondering about too. In CL the
symbols gensym produces can not be read by the reader so there can be
no collision cause the only way to get a handle on the symbol is to
create it with
On Mon, Nov 9, 2009 at 12:52 PM, Andrew Boekhoff boekho...@gmail.comwrote:
Hi.
And gives very different results. 'for' iterates over it's sequences
in a nested fasion. For your particular example, it will return the
sequence from (+ 31 1) (+ 31 2) and so on, and never get to the second
On Mon, Nov 9, 2009 at 4:31 PM, Rock rocco.ro...@gmail.com wrote:
I've been following this thread, and I must say I'm puzzled that Rich
hasn't said anything at all about this issue yet. It seems important
enough to hear his own opinion.
My observation over the past few months is that Rich
On Mon, Nov 9, 2009 at 4:28 PM, Howard Lewis Ship hls...@gmail.com wrote:
It looks very nice ... still I'd love to see something like what
clj-doc does (http://github.com/mmcgrana/clj-doc) ... it adds a text
field that you can type into and it matches the available names
against what you
Even more interesting is the behavior of contains? when passed strings:
user= (contains? foo \o)
false
user= (contains? foo 2)
true
user= (contains? foo 3)
false
user= (contains? 'foo 2)
false
It seems to treat strings as it does vectors, seeing if an index is in
bounds or not. It doesn't treat
On Mon, Nov 9, 2009 at 5:50 PM, Alex Osborne a...@meshy.org wrote:
Mark Engelberg wrote:
2009/11/9 Tiago Antão tiagoan...@gmail.com:
What is the rationale for even? and contains? having different
behaviors for the exact same error (ie, one throws the other works
fine and just returns
On Mon, Nov 9, 2009 at 8:28 PM, John Harrop jharrop...@gmail.com wrote:
Why not:
static public Object contains(Object coll, Object key){
if(coll == null)
return F;
else if(coll instanceof Map)
return ((Map) coll).containsKey(key) ? T : F
On Mon, Nov 9, 2009 at 8:41 PM, John Harrop jharrop...@gmail.com wrote:
In the meantime, the main thing still missing from Clojure is a convenient
queue. Lists and vectors both add and remove efficiently only at one end,
and at the same end for add and remove in both cases. Doubly-linked lists
On Mon, Nov 9, 2009 at 8:53 PM, Mark Engelberg mark.engelb...@gmail.comwrote:
On Mon, Nov 9, 2009 at 5:41 PM, John Harrop jharrop...@gmail.com wrote:
In the meantime, the main thing still missing from Clojure is a
convenient
queue.
What's wrong with clojure.lang.PersistentQueue
On Mon, Nov 9, 2009 at 10:37 PM, Mark Engelberg mark.engelb...@gmail.comwrote:
Yes, it's in Clojure 1.0, it just doesn't have a convenient name.
So give it a convenient name like this:
(def empty-queue clojure.lang.PersistentQueue/EMPTY)
and then you're ready to go.
conj, peek, pop, into
You have a bug:
(defn exp-mod [base exp m]
(cond
(zero? exp) 1
(even? exp) (mod (Math/sqrt (exp-mod base (/ exp 2) m)) m)
:else (mod (* base (exp-mod base (inc exp) m)) m)))
should be
(defn exp-mod [base exp m]
(cond
(zero? exp) 1
(even? exp) (mod (Math/sqrt (exp-mod
On Sun, Nov 8, 2009 at 7:33 AM, Michael Jaaka
michael.ja...@googlemail.comwrote:
Hi! How would you solve such problem:
I have a collection of pairs (key, value) -
[ [ tom 32 ] [ tom 2333 ] [ anne 12 ] [ anne 55 ] ]
As you can see keys can occur more than once, also that collection is very
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