Hi,
another one which caught me recently is nthnext. I expected (nthnext 5
some-seq), but Clojure complained about 5 being not a sequence. :]
Sincerely
Meikel
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Hi,
indeed. On the other hand the atom has the advantage of making the loop
easily interuptible from the outside. YMMV. :)
Sincerely
Meikel
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On Jun 15, 12:41 pm, Christian Schuhegger
wrote:
> Ah, sorry, perhaps I misunderstand you, but if you use multimethods
> (defmulti) in Clojure you do not need to "attach" methods to anything.
> The defmulti will allow you "dispatch-on-type" based on the key which
> is present in the map (e.g. if
Could someone add this as a Jira ticket or similar to be reviewed?
Ambrose
On Wed, Jun 15, 2011 at 2:43 AM, Ambrose Bonnaire-Sergeant <
abonnaireserge...@gmail.com> wrote:
> Inspired by "seq"/"empty?" docstrings.
>
> not-any?
>
> Returns false if (pred x) is logical true for any x in coll,
> els
On Wed, Jun 15, 2011 at 9:14 AM, CuppoJava wrote:
> There is one use of any? over some which hasn't been mentioned:
> checking whether a list contains a nil.
>
> ie. (when (any? nil? xs) (do stuff))
> vs. (when (some nil? xs) (do stuff))
>
>
Actually, this case works with `some`.
user=> (def any?
Hi Meikel,
it surprised me that you used an atom to run the event loop. A simple
loop/recur also works, at least in clojure 1.2.1:
(loop []
(let [input (read-line)]
(when (pos? (count input))
(println (pick phrases))
(recur
Just for the record.
Best,
Albert
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Ah, sorry, perhaps I misunderstand you, but if you use multimethods
(defmulti) in Clojure you do not need to "attach" methods to anything.
The defmulti will allow you "dispatch-on-type" based on the key which
is present in the map (e.g. if :delete is present or if :insert is
present).
The nice th
On Jun 15, 11:51 am, Mark Engelberg wrote:
> On Tue, Jun 14, 2011 at 7:41 PM, Matthew Phillips wrote:
> > Yes. I agree that can work, and that's what I've done in some other
> > situations, but it has the downside of lots of "recur" points
> > sprinkled around the loop body, which I think makes i
On Tue, Jun 14, 2011 at 7:41 PM, Matthew Phillips wrote:
> Yes. I agree that can work, and that's what I've done in some other
> situations, but it has the downside of lots of "recur" points
> sprinkled around the loop body, which I think makes it almost as hard
> to reason about as having lots of
On Jun 14, 4:40 pm, Alex Osborne wrote:
> Matthew Phillips writes:
> > The only way I can think of to write it in Clojure is:
>
> > (reduce
> > (fn [items op]
> > (let [items1 (if (:delete op) (drop-index (:delete op) items)
> > items)]
> > (if (:insert op) (cons (:insert op) items1)
On Jun 14, 12:30 pm, Mark Engelberg wrote:
> On Mon, Jun 13, 2011 at 7:37 PM, Matthew Phillips wrote:
> > List items = initialItems ();
>
> > for (Op op : operations)
> > {
> > if (op.requiresDelete ())
> > items.remove (op.indexToDelete ());
>
> > if (op.requiresAdd ())
> > items.add (op
On Jun 14, 12:05 pm, gaz jones wrote:
> if i was writing the java i would probably do a "tell dont ask"
> refactoring so that the operations had an applyTo method:
>
> List items = initialItems ();
>
> for (Op op : operations)
> {
> op.applyTo(items);
>
> }
>
> not sure what your op data structu
I think the basic problem is Clojure is not able to find the
clojure-csv jar file. I'm afraid I'm not quite clear enough on your
specific setup to know exactly what has gone wrong. I'm not sure where
you have this jar, or what exactly the shell scripting stuff is in
that command you're using to lau
On Tue, Jun 14, 2011 at 5:00 PM, Sean Corfield wrote:
> On Tue, Jun 14, 2011 at 10:29 AM, Chris Redinger wrote:
>> http://clojure-conj.org
>> Ticket, venue and initial speaker information has been posted. Sign up
>> today!
>
> Already bought my ticket :)
>
> The link to the hotel reservation syst
There is one use of any? over some which hasn't been mentioned:
checking whether a list contains a nil.
ie. (when (any? nil? xs) (do stuff))
vs. (when (some nil? xs) (do stuff))
-Patrick
On Jun 14, 9:00 pm, Ken Wesson wrote:
> On Tue, Jun 14, 2011 at 12:29 PM, Ambrose Bonnaire-Sergeant
>
> w
On Tue, Jun 14, 2011 at 12:29 PM, Ambrose Bonnaire-Sergeant
wrote:
> "some" is a poster boy for Clojure's well thought out truthyness system,
> this is a great example of the types of general functions it allows.
Notably, with a map as first argument it returns the first (truthy)
mapped value for
On Tue, Jun 14, 2011 at 8:12 PM, Sean Corfield wrote:
> On Tue, Jun 14, 2011 at 1:28 PM, Nick Zbinden wrote:
>> Stu said:
>> Objects should be the first parameter to a function (like it would be
>> in traditional OO).
>> Collections sould be in the last place in th parameter list.
>>
>> This is b
On Tue, Jun 14, 2011 at 3:26 PM, octopusgrabbus
wrote:
> This fails:
>
> (ns test-csv
> (:import (java.io BufferedReader)))
> (use clojure-csv.core)
>
> with java.lang.ClassNotFoundException: clojure-csv.core
> (NO_SOURCE_FILE:6)
>
> What am I doing wrong?
One thing that stands out is that it s
On Tue, Jun 14, 2011 at 1:28 PM, Nick Zbinden wrote:
> Stu said:
> Objects should be the first parameter to a function (like it would be
> in traditional OO).
> Collections sould be in the last place in th parameter list.
>
> This is because it makes the use of the threading operater easy -> for
>
On Tue, Jun 14, 2011 at 10:29 AM, Chris Redinger wrote:
> http://clojure-conj.org
> Ticket, venue and initial speaker information has been posted. Sign up
> today!
Already bought my ticket :)
The link to the hotel reservation system doesn't seem to be working at
the moment tho'...
--
Sean A Cor
In regards to the extra_classpath question, this is what Synaptic
installed in /usr/bin/clojure
#!/bin/sh
if [ "x$CLASSPATH" = "x" ] ; then
extra_classpath=""
else
extra_classpath=":$CLASSPATH"
fi
while true ; do
case "$1" in
-cp | -classpath)
Thanks. You've answered my question. I've got to set up a real
projects directory and build the jar file.
I appreciate everyone's patience during this "cockpit error" phase of
my learning Clojure.
On Jun 14, 4:04 pm, Chas Emerick wrote:
> clojure-csv is not a part of clojure-contrib. What is at
Awesome! Looking forward to it. :)
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Hallo all,
I just watched the talk Radical Simplicity (bit.ly/lsub9h) by Stuart
Halloway. Very Intressting but one little thing he says I wanted to
threw in the groupe because its kind of a half know thing and it
should really move into the Clojure Coding Standard.
Stu said:
Objects should be th
Thanks for the hint. And don't worry about the meaning of this
function. :) Name parameter has no use. And the regex stuff's for the
url.
Razvan
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clojure-csv is not a part of clojure-contrib. What is at $extra_classpath?
For this to work, it would need to include the jar for clojure-csv.
- Chas
P.S. Mostly off-topic: the sooner you can get away from whatever re-packaging
your distro has put together for Clojure, the better off you'll b
It might get people to quit looking at their infernal phones and laptops for 5
minutes. ;)
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Devin Walters
On Tuesday, June 14, 2011 at 2:50 PM, Laurent PETIT wrote:
> Would be very funny if for the upcoming clojure conj, attendants as
> well as speakers were all lying in hammocks !
> That c
Would be very funny if for the upcoming clojure conj, attendants as
well as speakers were all lying in hammocks !
That certainly would make the Buzz ! :-D
2011/6/12 Nick Brown :
> Going for walks also helps me. Having some form a mild physical
> activity that I don't have to concentrate on seems
You may also want to have a look at slimv.
http://www.vim.org/scripts/script.php?script_id=2531
It performs quite nice (can't compare it with vimclojure though,
'cause I don't know vimclojure).
Razvan
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I am trying to use clojure-csv, but am having a lot of cockpit error.
Here is my current configuration:
Running Clojure 1.2.1.
Modified a shell script installed by Synaptic to include clojure-
contrib.jar:
exec java -cp /usr/share/java/clojure.jar:/usr/share/java/clojure-
contrib.jar"$extra_class
Looks good to me.
I wasn't familiar with the docs around (seq x) vs (not (empty? x)). That
seems like a good place to draw the language from.
-kb
On Tue, Jun 14, 2011 at 1:43 PM, Ambrose Bonnaire-Sergeant <
abonnaireserge...@gmail.com> wrote:
> Inspired by "seq"/"empty?" docstrings.
>
> not-any
Inspired by "seq"/"empty?" docstrings.
not-any?
Returns false if (pred x) is logical true for any x in coll,
else true - same as (not (some pred coll)).
some
Returns the first logical true value of (pred x) for any x in coll,
else nil. One common idiom is to use a set as pred, for example
this
I actually had the same thought as the OP when reading through docs not too
long ago.
+1 for adding a pointer to "some" in the docstring of "not-any?"
-kb
On Tue, Jun 14, 2011 at 11:29 AM, Ambrose Bonnaire-Sergeant <
abonnaireserge...@gmail.com> wrote:
> Hi David,
>
> any? would be redundant an
Yes that is correct. These forms are equivalent:
(defn login-page [] ...)
(def login-page (fn [] ))
Thanks,
Ambrose
On Wed, Jun 15, 2011 at 1:51 AM, octopusgrabbus wrote:
> In the following code (from Brian Carper's cow-blog)
>
> (defn login-page
> "Page to let an admin log in."
> []
>
In the following code (from Brian Carper's cow-blog)
(defn login-page
"Page to let an admin log in."
[]
{:title "Login"
:body [:div [:h3 "Log in"]
(form-to [:post "/login"]
(form-row "Username" "username" text-field)
(form-row "Password" "pa
http://clojure-conj.org
Ticket, venue and initial speaker information has been posted. Sign up
today!
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Clojure/core
http://clojure.com
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Hi David,
any? would be redundant and less general than some, if I am not mistaken.
Compare the docstrings for the hypothetical "any?".
(some p coll)
Returns the *first logical true value* of (pred x) for any x in coll,
else *nil*.
(any? p coll)
Returns *true* if (pred x) is logical true for a
Thanks Meikel. This did exactly what I wanted. Thanks for your efforts.
From: clojure@googlegroups.com [mailto:clojure@googlegroups.com] On
Behalf Of Meikel Brandmeyer
Sent: Tuesday, June 14, 2011 7:25 AM
To: clojure@googlegroups.com
Subject: Aw: Vim Nailgun se
On Tue, Jun 14, 2011 at 1:56 AM, alsor wrote:
> Just out of curiosity, are these some implementation's peculiarities or
> it's intentional design?
Intentional design.
David
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>From my emacs start up file:
;; prevent slime to crash when encountering non ascii char
(set-language-environment "UTF-8")
(setq slime-net-coding-system 'utf-8-unix)
Le 14 juin 2011 06:16, "jlk" a écrit :
> Hello
>
> Is there a trick to making this work in emacs/slime?
>
> If I enter pi in the *
Yes, you're right - if I'm going to use transients, then I have to be sure
that .search is single-threaded. Because I can't have both - transient's
mutable properties and STM's properties of atom.
So, in my case I can use combination of atom and transients - because I know
exact Searcher's impl
Hello everyone. In looking through the API documentation, I've noticed
that there is a "not-any?" function available, but there is no
corresponding inverse "any?" function that I can find. There are,
however, "every?" and "not-every?" functions available. The closest I
could find was "some", but wo
Oh no, now the swap! might be a problem... from its doc: "Note that f may be
called multiple times, and thus should be free of side effects", and I think
it's no more side-effect free when we are using transients.
So close! :-)
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Wow, that's really good idea! Returned value of conj! is not ignored, and
overall function should not produce unnecessary garbage on the heap. Thanks!
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Just out of curiosity, are these some implementation's peculiarities or it's
intentional design?
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The thing is, this .search method will invoke MyCustomCollector.collect
method many times, for each matching document.
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Note that posts from
Thanks for the interesting point about possible parallel implementation of
search method.
I think I will stay with atom implementation, because in this particular
case I don't need to squeeze out maximum performance from this function.
But I wonder, what if in some similar case the performance
Although it may be overkill for you, take a look at Teiid: http://teiid.org
On Jun 14, 5:30 am, finbeu wrote:
> Hello,
>
> I have a couple of csv files that are actually dumped data from SQL
> tables. These tables have proper relationships with key, foreign keys
> so they can be easily joined u
Hello,
I have a couple of csv files that are actually dumped data from SQL
tables. These tables have proper relationships with key, foreign keys
so they can be easily joined using SQL.
I would like to load them into memory and then appy SQL queries on
that data. So in fact, I'm looking for a cloj
If you need extra libraries in your classpath, you can give lein-oneoff
plugin a try:
https://github.com/mtyaka/lein-oneoff
Using lein-oneoff, you should first define your dependencies in a clojure
file (mydeps.clj) and then issuing the following command:
lein oneoff --swank mydeps.clj
This will
2011/6/14 Vincent :
>
> Dear all ,
> I am using emacs with lein
> I want to try out repl in emacs , but without creating a new project using
> lien
> Presently , following steps i have to do to start repl
> 1. lein new project1 ( dummy project as i have only run repl )
> 2. cd project1
> 3
Hi,
do it the other way around. First start the repl. Then do a "(require
'vimclojure.nails) (vimclojure.nails/start-server-thread)". This will setup
the vim backend in the background while you can still work with the repl.
Hope that helps.
Sincerely
Meikel
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I setup Vim to use nailgun server. I start the nailgun server using
"lein vimclojure" plugin and use the VimClojure vim plugin to connect
to it. Everything works great and I can start a REPL inside Vim using
the command :ClojureRepl. All of this is on Windows 7.
However, I want to start a REPL on
Vincent writes:
Hi!
> I am using emacs with lein
Depending on you clojure-mode version (I think you need 1.9.1), it's
possible that
M-x clojure-jack-in RET
does everything needed to fire up a SLIME REPL in emacs. Have a look at
the thread "Radically simplified Emacs and SLIME setup" start
Dear all ,
I am using emacs with lein
I want to try out repl in emacs , but without creating a new project using
lien
Presently , following steps i have to do to start repl
1. lein new project1 ( dummy project as i have only run repl )
2. cd project1
3. modifying project.clj to set
I don't think either is worse or better, the lack of consistency
is imho worse than either of the approaches. One has to
remember that in the corner case function A behaves this
way but function B behaves the other way.
jarek
--
In theory, there is no difference between theory and practice.
But
Matthew Phillips writes:
> The only way I can think of to write it in Clojure is:
>
> (reduce
> (fn [items op]
> (let [items1 (if (:delete op) (drop-index (:delete op) items)
> items)]
> (if (:insert op) (cons (:insert op) items1) items1)))
> items ops)
>
> i.e. I'm using a cascade
On 14 June 2011 12:37, Matthew Phillips wrote:
> The only way I can think of to write it in Clojure is:
>
> (reduce
> (fn [items op]
>(let [items1 (if (:delete op) (drop-index (:delete op) items)
> items)]
> (if (:insert op) (cons (:insert op) items1) items1)))
> items ops)
>
> i.e. I'
Hi again,
ok. This is not entirely correct. It depends on how your searcher works. If
it works on several threads in parallel, there would be an issue, but the
transient would barf in that case anyway. So you would get an exception and
hence be safe.
Sincerely
Meikel
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