On Jan 25, 6:34 am, Sean Devlin wrote:
> Hello everyone,
> I'm having a blast making the Full Disclojure series. It's one the
> best projects I've had a chance to work on.
>
> However, there's going to be a problem soon. I only have a few more
> topics left before I run out. No more topics, n
2010/1/25 Mark Engelberg :
> Debugging techniques, including:
> * How to make sense of Clojure's stack traces.
> * How to use Java debugging and profiling tools with Clojure.
+1
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On 25 Jan, 06:50, Mark Engelberg wrote:
> Debugging techniques, including:
> * How to make sense of Clojure's stack traces.
> * How to use Java debugging and profiling tools with Clojure.
+1 for this. I haven't had the energy to try any debugging or
profiling tools yet.
Would be nice with demo o
> * How to make sense of Clojure's stack traces.
> * How to use Java debugging and profiling tools with Clojure.
1+
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I see you did one recently on Leiningen - how about a companion piece
on the maven-clojure-plugin [1] and native maven ( covering automated
test script generation/running, repl and slime integration ), or going
completely experimental the polyglot maven clojure stuff ( adding
dynamic scripting to c
Debugging techniques, including:
* How to make sense of Clojure's stack traces.
* How to use Java debugging and profiling tools with Clojure.
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Hello everyone,
I'm having a blast making the Full Disclojure series. It's one the
best projects I've had a chance to work on.
However, there's going to be a problem soon. I only have a few more
topics left before I run out. No more topics, no more videos.
This is where you come in. I'm inter
That's very thoughtful Travis. I was also considering generalizing
regular expressions to apply to arbitrary ordered collections for this
question. That is the most elegant abstraction for this problem. I
suppose there just isn't enough real-world use for a regex on
collections to justify the effor
As has been discussed here previously, one way to generate an uncached
stream of numbers is:
(defn incs [i]
(proxy [clojure.lang.ASeq] []
(first [] i)
(next [] (incs (inc i)
ASeq implements most of the machinery of sequences, so you can just
implement the parts that differ.
I'd like
Thanks for correcting me. I agree you would need to hang on to the
Method object.
On Jan 24, 5:09 pm, "Steven E. Harris" wrote:
> ".Bill Smith" writes:
> > you can use java.lang.reflect.Method.setAccessible to make an
> > otherwise protected method available for public access.
>
> It looks like
> I was wondering if anyone has tried somehow calling Jython functions
> from within Clojure, and how you went about doing this if so. I have
> not used Jython, but I would imagine the Jython interpreter can be
> invoked in the same way as any other java code, and Python programs
> can be run with
Occasionally things like this remind me of the similarities between
parsing character sequences and dealing with unpredictably ordered
collections. For character sequences, the regular expression mechanism
has been invented. I wonder if any one else has ever wished for the
ability to write a regula
Location: DC (central and lots of Clojurers in the area) or Atlanta
(cheap)
Days of week: Any, suggest Fri-Sat
There seem to be at least an equal (probably greater) number of east
coast Clojure users in North America and the east coast is an easier
destination for any European attendees.
I'm happ
Richard,
Agreed - I'm not committing to anything right now, just throwing out
what we might target, if those numbers sounds reasonable to people.
Like Tim said, our goal is to keep costs low, so we can keep the price
low.
Regards,
Amit.
On Jan 24, 2:51 pm, Tim Dysinger wrote:
> We don't know wh
".Bill Smith" writes:
> you can use java.lang.reflect.Method.setAccessible to make an
> otherwise protected method available for public access.
It looks like one would have to hang on to the Method object and reuse
it, as setting one Method instance's accessibility has no influence over
/other/
We don't know what the cost is going to be yet - I want to keep it _low_ but
we don't have any sponsors yet nor do we have a small (narrowed) list of
locations picked out. We plan on working on these items this month and will
release more info soon as we know more.
On Sun, Jan 24, 2010 at 9:42 AM
This is using a sledgehammer to drive in a nail, but you can use
java.lang.reflect.Method.setAccessible (http://java.sun.com/javase/7/
docs/api/java/lang/reflect/AccessibleObject.html#setAccessible
%28boolean%29) to make an otherwise protected method available for
public access. It's a sledgehamme
Hi,
I was wondering if anyone has tried somehow calling Jython functions
from within Clojure, and how you went about doing this if so. I have
not used Jython, but I would imagine the Jython interpreter can be
invoked in the same way as any other java code, and Python programs
can be run within it
The former is a lot clearer to read, as it uses standard Clojure
datastructures.
... which offers other advantages beyond the human, such as
(def page-names keys)
user=> (page-names foobar)
(:page :posts :post)
Power comes from algorithms × data structures, and hiding the data
structures —
On Jan 24, 5:05 pm, joel r wrote:
> It's meant to be called like this:
> (define-template some-template-name
> page some-function-1
> posts some-function-2
> post some-function-3)
>
> It defs a var called some-template-name bound to a map that looks like this:
> {:page some-function-1
> :p
The documentation for the `proxy' macro mentions lack of access in the
defined implementation to protected members:
,[ proxy ]
| Note that while method fns can be provided to override protected
| methods, they have no other access to protected members, nor to super,
| as these capabilities can
On Jan 24, 9:05 am, joel r wrote:
> Hi,
>
> I was wondering whether there was an elegant way to make this macro do
> more work:
>
> (defmacro define-template [template-name & template-params]
> `(def ~template-name (apply merge (map (fn [[k# v#]]
> {
2010/1/24 Gabi :
> As a side note, I didn't see anywhere in clojure docs that cyclic
> references are forbidden.
Yeah, and that's why I didn't employ (or intend to ?) the word
"forbidden", but rather the words "smells" and "software principles".
Smells and principles and general guidelines. Somet
As a side note, I didn't see anywhere in clojure docs that cyclic
references are forbidden.
And if it is forbidden, the Exception raised by the runtime should
reflect this instead of the odd "No
such var->.." exception
On Jan 24, 10:44 pm, Laurent PETIT wrote:
> Some software principle are certai
It's an elegant puzzle. Thanks Sean!
Here's my take:
(defn sift [pred? s]
(lazy-seq
(if (seq s)
(let [key (first s)
[vals remaining] (split-with #(not (pred? %)) (rest s))]
(cons [key vals] (sift pred? remaining))
Running:
(sift string? ["a" 2 "b" 3 4 "c" "d" 4
Some software principle are certainly above the languages used to
solve a problem, even probably above programming paradigms (OOP,
purely functional, etc.).
Java certainly has good parts, and having promoted the role and
importance of interfaces must certainly be accounted to its credit.
But conc
Manfred,
The (:require clojure.contrib.classpath) tuple tells the ns function
to load the clojure.contrib.classpath library if it has not already
been loaded. Clojure looks for clojure/contrib/classpath.clj (or the
equivalent class file) somewhere in your classpath, which in your
case would be i
I recently found a scheme problem that I think would be a good
exercise for a new Clojure developer. I've written about it here:
http://fulldisclojure.blogspot.com/2010/01/code-kata-data-sifter.html
Have fun.
Sean
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as far as pricing goes, how does something in the $199 range sound? we
can probably add a tutorial day Friday for a small additional cost,
say $149...? we can certainly have some well-known clojurians conduct
the tutorials, I'm sure we'll have plenty of real world clojure
experience in the house..
interesting. thanks for the thoughtful reply.
On Sun, Jan 24, 2010 at 2:08 PM, Richard Newman wrote:
> That said (and I'm not trying to make this a "charged" statement ... just a
>> way to learn more) I had always thought that one of the key things that made
>> lisp so complete was that program
That said (and I'm not trying to make this a "charged" statement ...
just a way to learn more) I had always thought that one of the key
things that made lisp so complete was that programs don't just
crash ... that debugging is fully-baked into the *core* of
everything. Now, I don't remembe
Ah! Never mind! I just got an email telling me that I had to verify
the account! I did that, and I can now send messages to the room (I
think). Thanks a lot!
On Jan 24, 12:00 pm, joshua-choi wrote:
> Thanks for the link; it's helpful. I've registered with Freenode as
> joshua-choi with a password
Thanks for the link; it's helpful. I've registered with Freenode as
joshua-choi with a password and nickname, and my IRC client informs me
when I reconnect that the server has identified me as joshua-choi.
However, when I try to send a message, I still get the same error.
Could anything else be a
Perhaps this might help:
http://freenode.net/faq.shtml#userregistration
On Sun, Jan 24, 2010 at 1:30 PM, joshua-choi wrote:
> Sorry for asking this here, but it's about the Clojure IRC room, which
> is kind of related to Clojure, being this group's sister help
> resource.
>
> I know nothing abou
Sorry for asking this here, but it's about the Clojure IRC room, which
is kind of related to Clojure, being this group's sister help
resource.
I know nothing about IRC, but I've been using the Colloquy application
for Mac OS X to connect to the Clojure IRC room on irc.freenode.net.
It was working
On Sun, Jan 24, 2010 at 10:28 AM, Manfred Lotz wrote:
> user=> (ns my (:require clojure.contrib.classpath))
> nil
> my=>
>
> which to me looks fine.
>
> But why does this fail?
>
> my=> (classpath)
> java.lang.Exception: Unable to resolve symbol: classpath in this
> context (NO_SOURCE_FILE:2)
>
r
ok folks, we need some more real opinions... :)
we're thinking it will be in the Bay Area, some time during early
fall. weekend seems logical from the responses so far...
as far as pricing goes, how does something in the $199 range sound? we
can probably add a tutorial day Friday for a small addi
Hi,
I was wondering whether there was an elegant way to make this macro do
more work:
(defmacro define-template [template-name & template-params]
`(def ~template-name (apply merge (map (fn [[k# v#]]
{(keyword k#) (var-get
(resolve v#))})
A little progress update.
I havent had much time to work on this since my initial effort. But
this weekend I have gotten structures to work.
The reason that special support for structures is needed is to support
C api's that pass them by value.
Most of the effort to make this work went into how I
Sorry, I meant (cp/classpath) ..
On Jan 24, 6:06 pm, Gabi wrote:
> Maybe try
> (ns my (:require [clojure.contrib.classpath :as cp]))
> (cp.classpath)
>
> On Jan 24, 5:28 pm, Manfred Lotz wrote:
>
> > Hi all,
> > I'm stumbling about the very basics.
>
> > Calling clojure like this:
>
> > rlwrap j
On Jan 24, 2010, at 17:12 , Stuart Halloway wrote:
> If the collaboration is deeply entwined, the two modules should be one
> module. If one module uses another, but with occasional callbacks in the
> other direction, use an interface or a protocol to define the backchannel.
That sounds horribl
It has confused me since the day I tried to mess around with clojure that
this topic isn't brought up more (not that I follow clj regularly) ... so
I'm happy to learn that someone added trace capabilities.
That said (and I'm not trying to make this a "charged" statement ... just a
way to learn mor
If the collaboration is deeply entwined, the two modules should be one
module. If one module uses another, but with occasional callbacks in
the other direction, use an interface or a protocol to define the
backchannel.
Think about it from the point of view of someone wanting to call your
Maybe try
(ns my (:require [clojure.contrib.classpath :as cp]))
(cp.classpath)
On Jan 24, 5:28 pm, Manfred Lotz wrote:
> Hi all,
> I'm stumbling about the very basics.
>
> Calling clojure like this:
>
> rlwrap java
> -cp
> /home/manfred/clojure/clojure.jar:/home/manfred/clojure/clojure-contrib.j
Hi all,
I'm stumbling about the very basics.
Calling clojure like this:
rlwrap java
-cp /home/manfred/clojure/clojure.jar:/home/manfred/clojure/clojure-contrib.jar
clojure.main
I try:
user=> (ns my (:require clojure.contrib.classpath))
nil
my=>
which to me looks fine.
But why does this fai
You know what? I am not sure that it smells so bad actually. What if I
have 2 modules that collaborate with each other and use each other
functions ? Why is this so bad?
On Jan 24, 5:32 pm, Laurent PETIT wrote:
> Short answer: you can't. And yes, it's a "smell" (a bad one) if you
> want to achi
2010/1/24 CuppoJava :
> That makes sense Jarkko, thanks for the explanation.
>
> So then, for my example, using a binding and set! would be the proper
> way of going about it right? Because I don't intend for multiple
> threads to access the job queue.
>
> And is there a way to change the bound val
Short answer: you can't. And yes, it's a "smell" (a bad one) if you
want to achieve this.
You have to somehow break the cycle :
* maybe acknowledge that ns a & b are strongly coupled since there's
the need for a cyclic dependency, and merge them.
* sometimes one wants to have a & b to have th
This thing is driving me nuts. If I do a cyclic require(ns-a requires
ns-b and ns-b requires ns-a) I get exceptions complaining about "No
such var->.."
How can cyclic dependencies be done correctly in Clojure ? I know it
might be bad practice. But I really need it.
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That makes sense Jarkko, thanks for the explanation.
So then, for my example, using a binding and set! would be the proper
way of going about it right? Because I don't intend for multiple
threads to access the job queue.
And is there a way to change the bound value for another thread?
The reason
When: weekends
Where: DC, Boston, NY, San Fran
Who: at least one, probably more
Newsgroups are such a painful way to vote on things. Google Wave or
some other wiki-like thing would make it much easier to aggregate
everyone's input.
On Jan 24, 8:37 am, Jeff Schwab wrote:
> +1 Boston.
>
>
>
> Bren
+1 Boston.
Brent Millare wrote:
Weekend, and East coast, either near the DC area or New York Area,
maybe Boston area is OK too.
On Jan 22, 12:36 pm, dysinger wrote:
We will be organizing a conference in the next month for 2010
(probably in the fall). One question I would like to ask is, give
Be careful of deftrace. It has a bug that crashes when the defn'ed
funcs have string comment on the top of the func
On Jan 23, 7:02 am, ataggart wrote:
> On Jan 22, 6:27 pm, Mike Meyer
>
>
> 620...@mired.org> wrote:
> > On Fri, 22 Jan 2010 17:25:39 -0800
>
> > ajay gopalakrishnan wrote:
> > > I
+1 to Boston/NY/DC/Bay Area in that order
On Sun, Jan 24, 2010 at 3:44 AM, Chad Harrington
wrote:
> - Friday / Saturday
> - SF Bay Area
> Chad Harrington
> chad.harring...@gmail.com
>
>
> On Fri, Jan 22, 2010 at 9:36 AM, dysinger wrote:
>>
>> We will be organizing a conference in the next month
2010/1/24 Eric Lavigne :
> lein run
Great! Very handy thanks.
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2010/1/23 ataggart :
> If the authors of of c.c.trace are
> amenable, I'm inclined to add this functionality to a variant of the
> c.c.logging/spy macro
Great idea!
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On Jan 24, 6:40 am, CuppoJava wrote:
> Thanks for the reply. That seems to match well with how I thought they
> were supposed to work.
>
> I'm just a little confused by the
> set!, with-local-vars, functions. What are they supposed to be used
> for?
>
> -Patrick
Vars are mutable reference types
Greetings, Mr. Wampler,
Actually, I was thinking about doing a short cross-comparison of the advantages
and disadvantages of Mozart/Oz and Scheme in multiparadigm programming in the
textbooks SICP and CTM; however, currently, because of the economic depression,
my company has been forced to dow
- Friday / Saturday
- SF Bay Area
Chad Harrington
chad.harring...@gmail.com
On Fri, Jan 22, 2010 at 9:36 AM, dysinger wrote:
> We will be organizing a conference in the next month for 2010
> (probably in the fall). One question I would like to ask is, given
> the conference is probably going
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