Take a look at Itsy, a similar but simpler project written in Clojure
https://github.com/dakrone/itsy
Regards,
BG
On Sun, Jun 17, 2012 at 4:31 AM, pvt liweijian.h...@gmail.com wrote:
Hello Clojure fans.
I'am new to clojure, I've learned clojure for sometime, wow~ it's an
interesting
Hi ALL,
Thanks that is exactly what i was looking for :)
On Saturday, June 16, 2012 12:30:45 AM UTC+10, Baishampayan Ghose wrote:
Hi Baishampayan,
(defn get-events-hlpr []
Retrieves events from MongoDB.
(vec (mc/find-maps events)))
Is that Emacs Lisp or Common Lisp?
Hi Sean,
That works just perfect !!!
JS
On Saturday, June 16, 2012 11:58:30 AM UTC+10, Sean Corfield wrote:
On Fri, Jun 15, 2012 at 7:30 AM, Baishampayan Ghose b.gh...@gmail.com
wrote:
This is how it should be done, really -
(defn get-events-hlpr
Retrieves events from MongoDB.
Never heard of it before, but it seems interesting. Thank you for pointing
to it.
воскресенье, 17 июня 2012 г., 5:51:33 UTC+6 пользователь Christian
Guimaraes написал:
Hi,
Anybody here already used catnip (https://github.com/bodil/catnip) to
do some web developement? I saw this video
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Java has queues that will do just what you want, as well as thread pools to
process the jobs. It's reasonable and idiomatic to use this stuff from
Clojure.
http://docs.oracle.com/javase/1.5.0/docs/api/java/util/concurrent/ConcurrentLinkedQueue.html
-Jeff
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On Jun 16, 11:37 am, David Nolen dnolen.li...@gmail.com wrote:
Not possible in Clojure and a source of hassle in Scheme and Common Lisp.
If you have dotted pairs you can never know if you have a proper list.
I'm probably missing some context, but I've heard this argument before
and had a hard
Thanks for replying, Sean. This was related to a similar post I made
earlier. The problem was that I had switched to Leiningen 2 and my
project.clj was still using :source-path instead of the new
:source-paths []. An oversight on my part.
Dave
On Saturday, June 16, 2012 11:21:57 PM UTC-5,
Hi guys,
everyone suggested that I don't need to use '.' when calling methods
from a record and in fact doing this gets rid of reflection...However,
now that I moved my records in different namespaces than the protocols
they satisfy it seems that I can no longer do that! example follows:
Yes, importing the 2 records I have so far into the core namespace where
the protocols live solves the problem but I have to use dot notation to
call the methods even from within the definition of the record. That is
not what worries me the most though...
the real problem now is the fact that
Forget about .method thing. It's an interop form and, strictly speaking,
has nothing to do with protocols. The fact that defining record with
protocol implementation inline will create class with corresponding methods
is just an implementation detail.
Protocol functions are just functions; you
aha!!! Protocols produce namespaced functions!!! I don't need to import
anything to core...I just need to call the functions with core/f since
the protocol exists in core...so simple!
sorry to bother you with something so trivial on a Sunday!
Jim
On 17/06/12 14:27, Jim - FooBar(); wrote:
On 17/06/12 14:44, Vinzent wrote:
Forget about .method thing. It's an interop form and, strictly
speaking, has nothing to do with protocols. The fact that defining
record with protocol implementation inline will create class with
corresponding methods is just an implementation detail.
You're welcome :)
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Well, if those assertions are violated, you can't do anything with it
anyway - you program is written wrong and you have to release new version
which'll fix it.
воскресенье, 17 июня 2012 г., 1:41:17 UTC+6 пользователь Alex Baranosky
написал:
To test for violations of those assertions,
This still requires changing your code to @(:emails contact). If you use
(emails contact) you need change your code in only one place.
The name emails implies that it's a sequence. Lazy sequence.
Property is just the OO word for function, semantically they are the same.
OO doesn't
A really good clojure specific example of data vs api is the discussion
regarding if the clojurescript analyzer should contain children or if
children should be a multimethod
https://groups.google.com/forum/m/?fromgroups#!topic/clojure-dev/vZLVKmKX0oc
By the way, I have read the whole
On Sunday, June 17, 2012 8:48:58 AM UTC-6, Vinzent wrote:
Well, if those assertions are violated, you can't do anything with it
anyway - you program is written wrong and you have to release new version
which'll fix it.
Yes, but if data in your database become corrupt then you may need to
On Sunday, June 17, 2012 9:09:23 AM UTC-6, Vinzent wrote:
This still requires changing your code to @(:emails contact). If you use
(emails contact) you need change your code in only one place.
The name emails implies that it's a sequence. Lazy sequence.
Yes it is... emails was not
Yes it is... emails was not the best example in this case.. think the
area example instead as this is single value rather than collection.
Well, I thought we've already came to the agreement that area is a
(polymorphic) function and it has nothing to do with structure of your
data, no?
Thanks Mark that was it!
On Friday, June 15, 2012 6:07:56 AM UTC-7, mwillson wrote:
On Wednesday, 13 June 2012 20:35:41 UTC+1, fenton wrote:
For some reason I cannot create an XML node. Sample code
here.https://gist.github.com/ce66585542f4b426381c Any
assistance much appreciated.
I
A cons is essentially just a struct with two fields. In Clojure, it's sort
of like:
(defrecord Cons [car cdr])
(defn cons [x y] (Cons. x y))
(defn first [x] (:car x))
(defn rest [x] (:cdr x))
The amazing thing is that you can represent any collection of arbitrary
length, just by nesting these
In the previous post, I accidentally deleted a dot when pasting:
user= (clojure.lang.MapEntry :a 1)
should have been
user= (clojure.lang.MapEntry. :a 1)
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The answer I get from IRC is always that 'Rich likes to hedge'.
On Sat, Jun 16, 2012 at 3:24 AM, László Török ltoro...@gmail.com wrote:
Hi,
I was reviewing some of the docstrings of programming constructs in the
clojure.core namespace.
I noticed that deftype and defrecord is still marked as
On Jun 17, 2012, at 10:45 AM, Vinzent ru.vinz...@gmail.com wrote:
Yes it is... emails was not the best example in this case.. think the
area example instead as this is single value rather than collection.
Well, I thought we've already came to the agreement that area is a
(polymorphic) function
A very nice section of SICP[1] describes how cons/car/cdr can be built only
with functions. Translated to Clojure it might look like
(defn cons [a b]
#(condp = %
:car a
:cdr b))
(defn car [cons-cell]
(cons-cell :car))
(defn cdr [cons-cell]
Basically, the issue is:
When a deftype/defrecord named class is used from Java, its containing
namespace is not loaded automatically, so even calling a function in
the same namespace will raise an exception like this:
java.lang.IllegalStateException: Attempting to call unbound fn ...
An
Thank you all for the suggestions. I decided to use Java as lamina seems an
overkill for me and I may lose some control over things I want to have. I
was wishing for a pure Clojure solution, but a wrapping layer over the Java
works fine.
On Sunday, June 17, 2012 4:43:17 AM UTC-4, Jeff Rose
Hi all,
I'm running into a problem with the clojure/java.jdbc wrapper. In my
program, I'm reading out a large text file and inserting around 24000
items into one table. After around 18000 items I get the following
error message:
NoRouteToHostException Cannot assign requested address
Data structure is an implementation detail...
It's not. Not in clojure. It is in OO, but clojure is not an OO language,
so it's not an implementation detail in clojure.
interfaces are contracts, if the data representation changes in OO you
need only change one class...
Well, but if
Hi,
I have been subscribed to a couple of groups as well as other stuff
and find it useful to have a Subject line prefix indicating the source
of conversation.
Would it be possible to add something like that [clojure]
Thx,
Andy
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I still hope we'll get rid of those ugly -Foo constructors some day. Also,
protocols aren't fully implemented yet (no way to get implementation of a
protocol for the given type, no way to resolve confilcts (like
prefer-method), etc)
суббота, 16 июня 2012 г., 13:24:04 UTC+6 пользователь Las
That is my point, representations SHOULD be considered implementation
details, because representations change... if you treat them as contracts
your code will break everywhere, if you wrap them with abstractions your
code will only need to change in one place...
As I mentioned above,
Your first lisp ? I suggest you immersed yourself in it. Clojure is my third.
Clojure is different from past languages because it allows features
that have existed for a number of years separately to coexist together nicely.
Many languages in the past have been created based on a couple of these
On Sunday, June 17, 2012 1:41:22 PM UTC-6, Vinzent wrote:
That is my point, representations SHOULD be considered implementation
details, because representations change... if you treat them as contracts
your code will break everywhere, if you wrap them with abstractions your
code will
On Jun 17, 2012, at 1:45 PM, Andy Coolware wrote:
I have been subscribed to a couple of groups as well as other stuff
and find it useful to have a Subject line prefix indicating the source
of conversation.
+1
-
Brian Marick, Artisanal Labrador
Now working at http://path11.com
Contract
Have you considered a more capable client?
-Phil
On Jun 17, 2012 11:45 AM, Andy Coolware andy.coolw...@gmail.com wrote:
Hi,
I have been subscribed to a couple of groups as well as other stuff
and find it useful to have a Subject line prefix indicating the source
of conversation.
Would it
On Jun 17, 2012, at 6:22 PM, Phil Hagelberg wrote:
Have you considered a more capable client?
My client is OSX Mail. I don't think it's a marginal client.
What inconvenience would users of more capable clients suffer if a [clojure]
were added?
Given that the change to Google Groups is
Since you don't see the problem with connection pooling in play, I
suspect your code is structured so that it is holding connections open
over the inserts. Without connection pooling, a new connection is
created for each DB operation.
It's also possible you've found a bug in c.j.jdbc that is
Having [clojure] in front of the subject obscures the subject with redundant
information. It's wasting valuable space at the front of the subject line that
could be used for, well, the subject, which I'm actually interested in.
The mail is already from clojure@googlegroups, to
On Sun, Jun 17, 2012 at 11:59 AM, Kurt Harriger kurtharri...@gmail.com wrote:
That is my point, representations SHOULD be considered implementation
details, because representations change... if you treat them as contracts
your code will break everywhere, if you wrap them with abstractions your
On Sun, Jun 17, 2012 at 1:32 PM, Kurt Harriger kurtharri...@gmail.com wrote:
If you follow the
hollywood principle you don't need getters... but you do need side-effects.
This might be where you're getting stuck then? Perhaps the hollywood
principle isn't the best approach? If you think it
On Sun, Jun 17, 2012 at 5:23 PM, Peter Buckley buckmeist...@gmail.com wrote:
Having [clojure] in front of the subject obscures the subject with redundant
information. It's wasting valuable space at the front of the subject line
that could be used for, well, the subject, which I'm actually
On Jun 17, 2012, at 8:23 PM, Peter Buckley wrote:
Having [clojure] in front of the subject obscures the subject with redundant
information. It's wasting valuable space at the front of the subject line
that could be used for, well, the subject, which I'm actually interested in.
The mail
On Sun, Jun 17, 2012 at 5:54 PM, Lee Spector lspec...@hampshire.edu wrote:
Mac OS X Mail.app does indeed allow filtering by addresses, etc. Nonetheless,
for some people and some workflows (including me any my workflow) it'd be
helpful to have a textual marker in the subject line. Not a huge
On Sunday, June 17, 2012 6:31:34 PM UTC-6, Sean Corfield wrote:
On Sun, Jun 17, 2012 at 11:59 AM, Kurt Harriger kurtharri...@gmail.com
wrote:
That is my point, representations SHOULD be considered implementation
details, because representations change... if you treat them as
I have also found that clojure code lacks cohesion we hate objects so we are
just going to throw everything into one large namespace and say we have
none... In OO I might call this a god class? I don't know, I'm not sold
yet... but I'll keep watching.
That depends. In OOP we might call it
On Sun, Jun 17, 2012 at 8:06 PM, Kurt Harriger kurtharri...@gmail.com wrote:
One of the sayings I hear reiterated is it is better to have 100 methods
that operate on one data structure than 10 methods that operate on 10 data
structures. Yet how is this different from one large interface with a
On Jun 17, 2012, at 9:38 PM, Timothy Baldridge tbaldri...@gmail.com wrote:
I have also found that clojure code lacks cohesion we hate objects so we
are just going to throw everything into one large namespace and say we have
none... In OO I might call this a god class? I don't know, I'm not
On Jun 17, 2012, at 9:46 PM, Sean Corfield seancorfi...@gmail.com wrote:
On Sun, Jun 17, 2012 at 8:06 PM, Kurt Harriger kurtharri...@gmail.com wrote:
One of the sayings I hear reiterated is it is better to have 100 methods
that operate on one data structure than 10 methods that operate on 10
On Jun 17, 2012, at 7:23 PM, Peter Buckley wrote:
I know mac products are designed for non-technical people and leave out most
common options, but can't they do something so simple and 1980's-esque as
filter on a field other than subject?
I've been using gmail and have had a rule for the
On Sun, Jun 17, 2012 at 9:31 PM, Brian Marick mar...@exampler.com wrote:
The complaint about reading the mailing list on phones is valid. I do wonder
how many people use phones as their main, workaday interface, and how much an
extra inconvenience 9 characters is when they're already trying
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