Hello everybody,
I am trying to figure out how to use the zippers. And I wrote the following
code
https://gist.github.com/1172883
It seems to get in-to an infinite loop ..can somebody help me figure it out.
The purpose of the last s-expression is to simply return a new s where all
the values
as it always happens.. I figured the problem as soon as I posted it . I just
had to replace the branch? function from (constantly true) with identity .
The problem was it was treating even nil values as valid nodes and hence
getting into an infinite loop.
Sorry for this.
Thanks again,
Sunil.
On
Hello,
I have an application written that gets deployed using a uberjar built with
leiningen. Works perfectly fine.
For training purposes, I want to give a training version of that application
that does not start the application (the -main routine) but a REPL so users
can interactively use
On Thu, Aug 25, 2011 at 5:41 PM, Tal Liron tal.li...@gmail.com wrote:
So, after setting up a JVM 7 environment to play with Clojure, and
enthusiastically rummaging through the codebase, I have good news and bad
news. :)
So, when Clojure calls a function, it either already has the instance in
On Thu, Aug 25, 2011 at 6:05 PM, Tal Liron tal.li...@gmail.com wrote:
Hmm... If you didn't have to worry about Java 7 compatibility, for one
thing with invokedynamic you could remove a lot of code from Clojure. No
more IFn or AFn. You simply have a method handle.
Actually, Clojure's
On Aug 25, 2011, at 11:39 PM, Dave Ray wrote:
user.dir is the directory from which the JVM was launched, i.e. the
initial working directory of the process. So, you're probably
double-clicking the Clooj jar which resides in your Downloads folder
and thus all further file system operations
On 25 Sie, 23:10, Lars Rune Nøstdal larsnost...@gmail.com wrote:
It's hanging here too, but I have no idea why; I'm not including swank.
Is there any verbose mode for lein?
Maybe there is some problem with network (firewall or something)
and you can not get jars from remote repository.
Does
I disagree.
Simply use: (System/getProperty user.home)
This will give you a useful path to work with, no matter where you
start from.
Works on my Mac. Should work on Windows.
From there I would build a simple library which tests which OS I am
on, and gives me the paths to the conventional
On Aug 26, 2011, at 9:15 AM, Terje Dahl wrote:
I disagree.
Simply use: (System/getProperty user.home)
This will give you a useful path to work with, no matter where you
start from.
Works on my Mac. Should work on Windows.
From there I would build a simple library which tests which
Adding the additional zero did trigger the issue for me. I have bumped
the ticket into Release.Next. Thanks for the clarification.
Cheers,
Aaron Bedra
--
Clojure/core
http://clojure.com
On 08/25/2011 01:21 PM, Alan Malloy wrote:
Update: just built master, and issue still exists. If you
I find myself making alot of mistakes when dealing with atoms.
I usually remember the datatype and/or structure returned by a
function, or held in a binding or symbol - but not wether it is an
atom or not.
Any naming-conventions for atoms, such as ending with ? for
predicate, or ! for sideeffect?
I guess the first question is; why so many atoms? But regardless,
there is no standard for naming such things. If you know you're
dealing with atoms only (as opposed to a reference in general) then
something like `foo-atom` would suffice I'd say.
--
You received this message because you are
Hi all,
I'm toying around with the lazy, tail-recursive quick-sort
implementation Michael Fogus and Chris Houser present in their book The
Joy of Clojure:
--8---cut here---start-8---
(in-ns 'user)
(defn sort-parts
Lazy, tail-recursive, incremental
Friends,
Thank you for the replies. I think you have proved my point.
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You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient
you mean this? http://clojure.org/lazy
maybe this can be helpful: http://en.wikipedia.org/wiki/Lazy_evaluation
On Wed, Aug 24, 2011 at 1:48 PM, xiaoguizi87 xiaogui...@gmail.com wrote:
I feel it is too difficult to understand the 'lazy-seq'.Can someone
recommend something may help me? I have
Hello.
This is with Clojure 1.2.
This works:
(gen-class
:namecom.nsn.isar.saxon.ext_funcs.ClojureReceiver
:extends net.sf.saxon.event.ProxyReceiver
:exposes {nextReceiver { :get getReceiver :set setReceiver } }
:exposes-methods { startDocument superStartDocument,
You might want to check out this excellent article by Andrew Brehaut that
covers a typical web stack in clojure with many examples -
http://brehaut.net/blog/2011/ring_introduction
Jaskirat
On Wed, Aug 24, 2011 at 6:43 PM, Michael Jaaka michael.ja...@googlemail.com
wrote:
RESTFUL in Clojure?
Any reason not to use a Set ?
On Wed, Aug 24, 2011 at 3:57 PM, Ken Wesson kwess...@gmail.com wrote:
On Wed, Aug 24, 2011 at 5:58 PM, octopusgrabbus
octopusgrab...@gmail.com wrote:
(defn f1
[in-seq]
(loop [new-seq [] cur-seq in-seq]
(if (nil? (first cur-seq))
This means I can read the rest of the logs
http://clojure-log.n01se.net/date/2008-09-03.html
and it stills hold up ? i.e we want tagged numbers ?
/Kevin
On Thu, Aug 25, 2011 at 2:51 PM, Aaron Bedra aaron.be...@gmail.com wrote:
That's correct. That is why Clojure/core hasn't prioritized this
Dear Clojurians,
while playing with http://4clojure.com I found a perplexing behavior
when I submit my own code for implementing my own poor implementation
of my-flatten for problem 28:
(defn my-flatten
[coll]
(loop [acc [] coll coll]
(if-let [[a coll] coll]
(if (or (list? a)
Looking at the stack trace, I suspect this is the old problem of
layering too many filters on top of the same seq. If I understand the
issue correctly, when you have enough layers of filter on top of a
seq, when you finally try to access elements, as it evaluates each
layer, it is going to be
On Thu, Aug 25, 2011 at 9:05 AM, Kevin Ilchmann Jørgensen kijm...@gmail.com
wrote:
This means I can read the rest of the logs
http://clojure-log.n01se.net/date/2008-09-03.html
and it stills hold up ? i.e we want tagged numbers ?
/Kevin
1.3 went a different route. Fast path for 64bit
Hi
On 25 August 2011 18:16, Shouxun Yang yang.shou...@gmail.com wrote:
Dear Clojurians,
while playing with http://4clojure.com I found a perplexing behavior
when I submit my own code for implementing my own poor implementation
of my-flatten for problem 28:
(defn my-flatten
[coll]
(loop
Shouxun Yang yang.shou...@gmail.com writes:
(defn my-flatten
[coll]
(loop [acc [] coll coll]
(if-let [[a coll] coll]
(if (or (list? a) (vector? a))
(recur acc (if (empty? coll)
(vec a)
(conj (vec a) coll)))
Michael,
thank you very much. I never paid much attention to the chunked seq feature
before. The effect is surprising to my Common Lisp / OCaml background.
I thought my code good enough to cover the test cases. Always new thing to
learn.
shouxun
在 2011-8-26 下午11:42，Michael Wood
Hi
On 26 August 2011 17:44, Tassilo Horn tass...@member.fsf.org wrote:
[...]
BTW2: Instead of (empty? coll), use the idiomatic (seq coll) recipe.
You have that one backwards :)
user= (doc empty?)
-
clojure.core/empty?
([coll])
Returns true if coll has no items - same
2011/8/26 Lee Spector lspec...@hampshire.edu
On Aug 25, 2011, at 9:27 PM, Ken Wesson wrote:
On Thu, Aug 25, 2011 at 6:49 PM, Lee Spector lspec...@hampshire.edu
wrote:
While slurp and spit are beautifully elegant it's not so elegant to tell
slurp how to find the file you want it to slurp.
在 2011-8-26 下午11:44，Tassilo Horn tass...@member.fsf.org写道：
Shouxun Yang yang.shou...@gmail.com writes:
(defn my-flatten
[coll]
(loop [acc [] coll coll]
(if-let [[a coll] coll]
(if (or (list? a) (vector? a))
(recur acc (if (empty? coll)
On Aug 26, 2011, at 12:01 PM, Laurent PETIT wrote:
What kind of problem with Eclipse / CCW ?
CCW uses a standard java launcher, so to say it uses the Eclipse Java
Development Tools defaults, which are to create a launch configuration with
the project's path as the current directory (of
Michael Wood esiot...@gmail.com writes:
BTW2: Instead of (empty? coll), use the idiomatic (seq coll) recipe.
You have that one backwards :)
Ah, that must be the reason my apps don't ever work! ;-)
So BTW3: Use (seq coll) and swich the then/else parts of the if.
Bye,
Tassilo
--
You
Paul Mooser taron...@gmail.com writes:
Hi Paul,
Looking at the stack trace, I suspect this is the old problem of
layering too many filters on top of the same seq. If I understand the
issue correctly, when you have enough layers of filter on top of a
seq, when you finally try to access
Tassilo Horn tass...@member.fsf.org writes:
I've seen people solve these issues by forcing the intermediate seqs,
but that doesn't work well for a lazy situation such as this.
Indeed, putting a doall around the filter and remove seems to prevent
the stack overflow.
A better solution seems
On Thu, 25 Aug 2011 19:24:13 +0300
Mats Rauhala mats.rauh...@gmail.com wrote:
The simplest way is to slurp or spit. slurp reads a file into a
string, and spit writes a string into a file.
Yes, true, but first you have to know them. And slurp is not the
first think I am looking for when
If you search for filter and StackOverflowError in this group, you
will find people discussing related issues.
On Aug 26, 10:30 am, Tassilo Horn tass...@member.fsf.org wrote:
Do you have a link to the issue? I've tried searching for filter or
layer at dev.clojure.org, but I can't find
Tassilo Horn tass...@member.fsf.org writes:
Now I'm really a bit confused. I've just added atom counters and
increased them in the comparison functions in order to check if the lazy
variants really test less than the standard sort.
A better solution [that doesn't overrun the stack] seems to be
Paul Mooser taron...@gmail.com writes:
Hi Paul,
If you search for filter and StackOverflowError in this group, you
will find people discussing related issues.
Thanks, I've found some explanation by Meikel Brandmeier who explains
the layering issue. But do we really have to live with that?
On Aug 26, 12:40 pm, Tassilo Horn tass...@member.fsf.org wrote:
Paul Mooser taron...@gmail.com writes:
Hi Paul,
If you search for filter and StackOverflowError in this group, you
will find people discussing related issues.
Thanks, I've found some explanation by Meikel Brandmeier who
On Fri, Aug 26, 2011 at 1:15 AM, finbeu info_pe...@t-online.de wrote:
How can I build such a uberjar that starts a repl instead of -main? The
REPL
should have also some nice editing features (I think I have to add jLine
or
how is it called?)
For a raw repl you should be able to do:
$ lein
OK. Thanks.
Regarding why so many atoms:
I have rewritten a GUI-based (Swing) app to Clojure (our company's
product: A Java applet), and where I previously typically had extended
JPanels, adding variables and methods to them, I have (for now)
replaced them with maps in atoms, where the maps
Hi!
I have got
(def *g)
(def *g1)
(def *g2)
(def *g3)
(def *g4)
(def *g5)
(def *g6)
(defmacro grep[ pat in body ]
`(do (when-let[ r# (re-matches (re-pattern ~pat) ~in) ]
(binding [ *g (first r#) *g1 (get r# 1) *g2 (get r# 2)
*g3 (get
r# 3)
I've just started going through the problems on http://4clojure.com .
Very fun.
Does anyone know if there's a discussion forum dedicated to that
site? I've searched but nothing jumps out.
I'm looking for a hint on how to solve the Nth Element problem
(without cheating and using the nth
This is the best summary of how Clojure *could* benefit from invokedynamic.
Clojure doesn't dispatch as dynamically as JRuby, but there is a dynamic
component...specifically, you have to go get the fn. That repeated get
would disappear with invokedynamic,
In fact, anywhere you're going after
Is there a recovery group for 4clojure.com addicts?
Stop now!
Don't go further before it's too late and you are checking the website
every five minutes waiting for the next problem, obsessing over every
character in your code so you can get one of the best code golf
scores, etc.
But seriously,
do you know about the re-groups function, or are you just doing this
for an exercise?
On Fri, Aug 26, 2011 at 6:57 PM, Michael Jaaka
michael.ja...@googlemail.com wrote:
Hi!
I have got
(def *g)
(def *g1)
(def *g2)
(def *g3)
(def *g4)
(def *g5)
(def *g6)
(defmacro grep[ pat in body ]
Well I think that this is a different case.
On 27 Sie, 03:15, gaz jones gareth.e.jo...@gmail.com wrote:
do you know about the re-groups function, or are you just doing this
for an exercise?
On Fri, Aug 26, 2011 at 6:57 PM, Michael Jaaka
michael.ja...@googlemail.com wrote:
Hi!
I
I haven't heard of one either, and I'm maintainer and co-founder of
4clojure. If someone (that means you!) starts such a forum, I'm happy
to link to it from 4clojure proper.
On Aug 26, 5:59 pm, Bob Shock shock...@gmail.com wrote:
Is there a recovery group for 4clojure.com addicts?
Stop now!
You might want to give Pack200 a try; it's a Java classfile-aware compression
algorithm that can produce jars that are far more compact than e.g. if you were
to only gzip applet jars on their way out to your users. Lots of info about it
if you feel like googling.
Using a build from the
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