Dear all,
I've just pushed two libraries which I've been working on since summer
now and which have already proven themselves in production too
(regardless of their baby age):
===
http://hg.postspectacular.com/simplecl
==
Thanks Jordan - I just couldn't quite get that magic combination :)
On Sunday, December 9, 2012 11:38:50 PM UTC+1, Jordan wrote:
>
>
>
>
> On Sun, Dec 9, 2012 at 4:45 PM, mond >wrote:
>
>> ; I have these records defined
>>
>> (defrecord Customer [firstName lastName emailAddress deliveryAddress
On Sun, Dec 9, 2012 at 6:03 PM, Mikera wrote:
> Any thoughts / ideas / feedback?
What if you try keeping it pretty close to the current POV syntax/format?
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Are you only interested in static scenes? Or are you interested in
simulations too?
On Sunday, December 9, 2012 4:03:36 PM UTC-8, Mikera wrote:
>
> Hi all,
>
> I'm working on a hobby project to implement a Clojure raytracer, something
> along the lines of POV-Ray:
> https://github.com/mikera/enl
I wanted something like this to create an AST validator for ClojureScript!
Will have to find some time to study your approach.
On Sunday, November 25, 2012 3:22:04 PM UTC-8, Alex Baranosky wrote:
>
> Clj-schema is a library for defining and validating schemas for maps, as
> well as for using tho
There's no magic here, everyone tuning their app hit this wall eventually,
tweaking the JVM memory options :)
Luc
>
> On Dec 9, 2012, at 6:25 AM, Softaddicts wrote:
>
> > If the number of object allocation mentioned earlier in this thread are
> > real,
> > yes vm heap management can be a bott
I don't have the answer, but I would strongly recommend webbit:
https://github.com/webbit/webbit
I've been using it for quite awhile and I've been very happy with it.
On Sun, Dec 9, 2012 at 8:55 PM, larry google groups
wrote:
>
> I am still fairly new to Clojure, the JVM and Java, so I get lost
I am still fairly new to Clojure, the JVM and Java, so I get lost trying to
read some of the stuff that assumes knowledge of any of those 3. I want to
build a Clojure app using Jetty and offering WebSocket connections.
I have already built an app with Clojure and Jetty, so that part is easy.
Hi all,
I'm working on a hobby project to implement a Clojure raytracer, something
along the lines of POV-Ray:
https://github.com/mikera/enlight
It's a a fairly preliminary stage right now, but I'm interested in ideas on
how to create the scene description language. Roughly the objectives are:
On Sun, Dec 9, 2012 at 4:45 PM, mond wrote:
> ; I have these records defined
>
> (defrecord Customer [firstName lastName emailAddress deliveryAddress
> invoiceAddress])
> (defrecord Address [street number town postcode])
>
This looks fine
>
> ; I have this small sample data
> (def customers
>
You are right. I am referring to the querying function, not datomic on the
whole.
I have my own understanding about the differences but I was interested in
hearing others. Please don't feel pressured to answer my question. I'm
trying to compile understanding akin to stackoverflow, where as lon
; I have these records defined
(defrecord Customer [firstName lastName emailAddress deliveryAddress
invoiceAddress])
(defrecord Address [street number town postcode])
; I have this small sample data
(def customers
{
(->Customer "Drongo" "Bongo" "dro...@bongo.co"
(->Address "Gongo" "3
Hi Laurent,
It was originally written as loose-only, because that is an easier problem
to solve, but since these schemas are being used at work to make sure no
bad data gets stored in HBase we decided collectively that strictness was
more of what we wanted.
I'm open to exploring ways to make the
First of all, stop saying 'on datomic'. Datomic as a Database, witch in its
Peer library has a implmentation of Datalog. This implmentation of Datalog
has basicly nothing to do with the rest of datomic, it can be used as a
query language for data from all sources, it just comes with the Datomic
When I'm working on a number of interdependent projects, I'm making symbolic
links of the src directories of the dependent project inside my main project.
In that way, I can easily make changes in the multiple projects without having
to go thru the update version/jar/pom/install cycles for all a
Not exactly: my initial acc value is usually something like #{} or [] but
I've got the idea.
On Sunday, December 9, 2012 9:29:25 PM UTC+3, Alan Malloy wrote:
>
> You seem to have written (reduce (fn [acc [a b]] ...) (partition 2 1
> coll)).
>
> On Sunday, December 9, 2012 7:39:21 AM UTC-8, Alexa
On Dec 9, 2012, at 6:25 AM, Softaddicts wrote:
> If the number of object allocation mentioned earlier in this thread are real,
> yes vm heap management can be a bottleneck. There has to be some
> locking done somewhere otherwise the heap would corrupt :)
>
> The other bottleneck can come from ga
I think Typed Clojure and clj-schema could work very nicely together. I'll
look at it again in a few months.
Thanks,
Ambrose
On Wed, Nov 28, 2012 at 11:18 AM, Alex Baranosky <
alexander.barano...@gmail.com> wrote:
> Hi Stathis,
>
> Thanks for your interestin clj-schema. If you use it and have an
You seem to have written (reduce (fn [acc [a b]] ...) (partition 2 1 coll)).
On Sunday, December 9, 2012 7:39:21 AM UTC-8, Alexander Semenov wrote:
>
> Hi, folks.
>
> I'm wondering if Clojure library has 'reduce' function version which is
> like (reduce f coll) - i.e. it applies function to coll
Hello,
this is exactly the kind of library I was probably going to rewrite
for myself rather sooner than later, cool !
One question, though : if I understant it correctly, the default
behaviour once you start defining a schema is for it to be "strict"
rather than "loose", meaning that any extra k
Andy Fingerhut writes:
> My current best guess is the JVM's memory allocator, not Clojure code.
I didn’t mean to imply the problem was in Clojure itself, but I don’t
believe the issue is in the memory allocator either. I now believe the
problem is in a class of JIT optimization HotSpot is perfo
Okay thanks, I just wanted to make sure that I'm not re-inventing something
already ready.
On Sunday, December 9, 2012 8:07:24 PM UTC+3, puzzler wrote:
>
> Essentially, you are using two accumulators: acc and (first coll).
>
> You can probably use reduce for this purpose by
> (reduce f [acc (firs
On Dec 9, 2012, at 4:48 AM, Marshall Bockrath-Vandegrift wrote:
>
> It’s like there’s a lock of some sort sneaking in on the `conj` path.
> Any thoughts on what that could be?
My current best guess is the JVM's memory allocator, not Clojure code.
Andy
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Thanks
On Sunday, December 9, 2012 3:11:02 PM UTC, Jim foo.bar wrote:
>
> Rich explains why here:
>
> https://groups.google.com/forum/?fromgroups=#!msg/clojure/-gCg_0wmT5o/H7WobsV-yt0J
>
> Jim
>
>
> On 09/12/12 15:06, Yinka Erinle wrote:
>
> Thanks Jim.
> I wonder why.
>
> On Sunday, December
On Dec 8, 2012, at 9:37 PM, Lee Spector wrote:
>
> On Dec 8, 2012, at 10:19 PM, meteorfox wrote:
>>
>> Now if you run vmstat 1 while running your benchmark you'll notice that the
>> run queue will be most of the time at 8, meaning that 8 "processes" are
>> waiting for CPU, and this is due to m
Hi,
I'm trying embed clojure into a proprietary system.
That system can be configured to create instances of specified Java classes
and calling specified methods.
So I want to use gen-class to create these proxies.
The only problem is that both clojure and my proprietary system handle
class l
Yeah, cond will probably do the trick as well.
I do consider if complex (and yeah my argument is true for a lot of
functions)
What i'm talking about is some accidental complexity of the language. That
I must constantly be aware of what parameter of the function I'm looking
at.
My point is not so
Essentially, you are using two accumulators: acc and (first coll).
You can probably use reduce for this purpose by
(reduce f [acc (first coll)] (rest coll))
adjusting the starting accumulator accordingly and altering f to be (fn
[[acc coll-acc] item] ...)
Frankly, it would probably be more readab
How about cond?
(cond
test true
:else false)
BTW I personally don't consider if complected. If reverse order is more
appropriate, I use if-not.
On Sunday, December 9, 2012 12:02:54 AM UTC+1, Thomas Goossens wrote:
>
> One of the issues i had and still have with the if function is that
>
Hi, folks.
I'm wondering if Clojure library has 'reduce' function version which is
like (reduce f coll) - i.e. it applies function to coll elements without
the initial value but at the same time allows to use external accumulator
which is passed to f as well. Better look at the code:
(defn red
Hi
Can someone give example of parsing using zetta-parser for the case that
the input stream is intermittent (i.e. possibly incomplete at a particular
moment).
The author of zetta-parser refers to this very possibility in his readme
(for example parsing messages arriving at a socket or such).
Can you elaborate on the zebra puzzle? What particular aspect is required?
What would need to be implemented to get it to work on datomic?
On Sunday, December 9, 2012 5:48:55 AM UTC-5, Nick Zbinden wrote:
>
> You have a misunderstanding.
>
> core.logic and datomic datalog are not the same thing.
Rich explains why here:
https://groups.google.com/forum/?fromgroups=#!msg/clojure/-gCg_0wmT5o/H7WobsV-yt0J
Jim
On 09/12/12 15:06, Yinka Erinle wrote:
Thanks Jim.
I wonder why.
On Sunday, December 9, 2012 2:43:54 PM UTC, Jim foo.bar wrote:
Unfortunately you have to import each class separ
Thanks Jim.
I wonder why.
On Sunday, December 9, 2012 2:43:54 PM UTC, Jim foo.bar wrote:
>
> Unfortunately you have to import each class separately...no wild-cards
> in ns declarations :-(
>
> Jim
>
> On 09/12/12 14:21, Yinka Erinle wrote:
> > Hi,
> >
> > Is it possible to import multiple j
Here[1] is an enhancement to parenface[2] that adds support for the
editor and REPL for Clojure, Jess, and Elisp.
1 http://marmalade-repo.org/packages/parenface-plus
2 http://marmalade-repo.org/packages/parenface
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Unfortunately you have to import each class separately...no wild-cards
in ns declarations :-(
Jim
On 09/12/12 14:21, Yinka Erinle wrote:
Hi,
Is it possible to import multiple java classes using import?
e.g (import '(java.naming.*))
Or will I have to import each class separately?
Thanks,
Yin
If the number of object allocation mentioned earlier in this thread are real,
yes vm heap management can be a bottleneck. There has to be some
locking done somewhere otherwise the heap would corrupt :)
The other bottleneck can come from garbage collection which has to freeze
object allocation com
Hi,
Is it possible to import multiple java classes using import?
e.g (import '(java.naming.*))
Or will I have to import each class separately?
Thanks,
Yinka.
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have a wonderful journey like I had
mimmo
On Dec 7, 2012, at 4:16 AM, Xiaodan Yuan wrote:
> Yeah!
>
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Yeah!
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Thanks Jim, that worked like a charm. For anyone lurking this is what I
used in my project.clj:
[org.codehaus.jsr166-mirror/jsr166y "1.7.0"]
On Sun, Dec 9, 2012 at 4:55 AM, Jim - FooBar(); wrote:
> jsr166
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Use java 7 with clojure 1.5.0-beta1 or use java6 with the jsr166.jar
already in your classpath...Alternatively, if you use some clojure
version older than 1.5.0-beta1 with Java 7 you may need to build clojure
on your system...
Hope that helps...
Jim
On 09/12/12 12:44, Alex Baranosky wrote:
cameron writes:
> Interesting problem, the slowdown seems to being caused by the reverse
> call (actually the calls to conj with a list argument).
Excellent analysis, sir! I think this points things in the right
direction.
> fast-reverse : map-ms: 3.3, pmap-ms 0.7, speedup 4.97
> list-cons
Using 1.5.0-beta1, attempting to load the reducers namespace, `(require
'[clojure.core.reducers :as r])`, is generating this exception:
CompilerException java.lang.ClassNotFoundException: jsr166y.ForkJoinPool,
compiling:(clojure/core/reducers.clj:56:21)
TERMINAL> java -version
java version "1.6.0_
Hi Lee,
Would it be difficult to try the following version of 'pmap'? It doesn't
use futures but executors instead so at least this could help narrow the
problem down... If the problem is due to the high number of futures
spawned by pmap then this should fix it...
(defn- with-thread-pool* [
Cool thanks!
On Sunday, December 9, 2012 11:52:32 AM UTC+1, Alex Baranosky wrote:
>
> The version I just posted also has the benefit that it does not cause
> multiple evaluations of its branches.
>
> On Sun, Dec 9, 2012 at 2:39 AM, Herwig Hochleitner
>
> > wrote:
>
>> 2012/12/9 Ben Wolfson >
>>
Hi,
I saw clojure-contrib datalog has not made it into modular contribs:
https://github.com/clojure/clojure-contrib/tree/master/modules/datalog
http://dev.clojure.org/display/design/Where+Did+Clojure.Contrib+Go
http://dev.clojure.org/display/doc/Clojure+Contrib+Libraries
Does anybody know if it'
You have a misunderstanding.
core.logic and datomic datalog are not the same thing.
core.logic is a turing complet logic engine, datomic datalog is only a
querying subpart of this. You can not solve the zebra problem with datomic
datalog, its impossible.
Think of datomic datalog as if it would
You could add check for other keys than :then and :else being used.
For documentation, I'd add a docstring "Macro, similar to if but with
branches labeled by keywords :then, :else." + the usage examples you posted.
Also, have you looked at cond and if-not?
Using cond to me feels like labeling the
>>
>> (defmacro iff [test & {:keys [then else]}]
You probably want a different name for this, 'iff' already has a well
understood meaning as 'if and only if'
See
http://en.m.wikipedia.org/wiki/If_and_only_if
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Nice :)
On Sunday, December 9, 2012 1:17:48 AM UTC+1, Michał Marczyk wrote:
>
> Better yet,
>
> (defmacro iff [test & {:keys [then else]}]
> `(if ~test ~then ~else))
>
> (that's doing the lookup for then and else in the map constructing
> from the macro's rest argument at compilation time ra
Has anyone looked at how to manage snapshots and dependencies in projects
with checkouts - where the checkouts (also snapshots) are being edited
along with the main project?
As I look at my layers of projects, they looks like a lot of rather tedious
manual work for each project to: bump the pro
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