I've written several of the Clojure programs on the site. I'm not omniscient
when it comes to writing efficient Clojure code, but I know a few of the
techniques. Several, if not most, of the Clojure solutions already take
advantage of mutable data structures, for example.
There are some
So, this started when I read Keith Swallow's article on a simple web server:
http://keithcelt.com/a-simple-web-server-in-clojure
I took his code and ran lein new to create a new project and I copy and
pasted his code to core.clj and made some minor adjustments, adding
gen-class and main so I
Hi Stuart,
can I ask what platform are you sshing from and what terminal you are
using?
I use emacs over ssh a lot and while I have encountered some of the issues
you mention, they are in a far more limited way. For example, I have found
different behaviour between delete and sometimes, Alt
2012/8/27 Denis Labaye denis.lab...@gmail.com
Fetch JSON with clj-http AND extract informations from it with enlive.
Does anyone know what's the most straightforward way to do that?
Enlive currently is tied to selecting and transforming XML. I have a branch
of enlive on my computer, on which
I've got my stickers!
So happy...
On Friday, July 6, 2012 11:09:29 AM UTC+2, dmirylenka wrote:
+1
On Sunday, June 10, 2012 3:03:46 AM UTC+2, aboy021 wrote:
Is there anywhere that I can get a Clojure sticker?
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Yes. Look at test.benchmark. Java is the baseline there. We don't accept
Clojure versions that are not competitive.
On Monday, August 27, 2012, Ben Mabey wrote:
Looking at clojure's benchmarks they seem to already be highly optimized
(in terms of employing all the standard tricks). Does
The ctor call for ServerSocket should be (ServerSocket. port localhost).
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Command line arguments that are not strings need to be converted prior to
use by your main function.
Look at the code for the port number and do the same for the service.
--jon
On Aug 28, 2012, at 2:42, larry google groups lawrencecloj...@gmail.com
wrote:
So, this started when I read Keith
Check the type of `port'. Seems like arguments from the command line
gets passed as strings. You need to convert them to a number:
(Integer. port-string)
Cheers,
Moritz
larry google groups writes:
So, this started when I read Keith Swallow's article on a simple web server:
And service should not be a string.
Am Dienstag, 28. August 2012 13:49:54 UTC+2 schrieb Fogus:
The ctor call for ServerSocket should be (ServerSocket. port localhost).
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One possibly confusing titbit I came across recently relates to how Clojure
handles destructuring of variable-length argument lists. The essence is
that the destructuring form can appear to influence the 'shape' of the
collection of arguments. Here is what I mean:
take nothing off the head of
SSH in iTerm 2 from an OS X machine to a Linux server. $TERM is
xterm-256color at both ends. We use this for pair-programming, so X and
tramp are not helpful.
-S
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On Thu, Aug 23, 2012 at 11:22 AM, Alexsandro Soares
prof.asoa...@gmail.com wrote:
Can you provide the code for this?
Certainly.
The parser's current source position is stored in the InputState
record's `pos` field. That field is a SourcePos record consisting of
the current line and column
Thanks Andy for the insightful report! I knew you and others have worked
hard on the benchmarks so this kind of analysis is very helpful.
Thanks for all your work on them,
Ben
On 8/28/12 12:07 AM, Andy Fingerhut wrote:
I've written several of the Clojure programs on the site. I'm not
Vector-as-map destructuring makes sense when you consider that vectors are
associative: they map index to value.
(let [{a 1 b 3 :as c} [:a 1 :b 2]] [a b c])
= [1 2 [:a 1 :b 2]]
Justin
On Tuesday, August 28, 2012 8:30:58 AM UTC-4, Douglas Orr wrote:
One possibly confusing titbit I came across
Maybe a long shot, but are any Clojurians going to the Parallel Problem
Solving from Nature conference in Sicily later this week
(http://www.dmi.unict.it/ppsn2012/)?
I'll be giving a tutorial there that will cover genetic programming work
currently being done in Clojure
With Tim's pointer, I worked around the completion exception on namespace
by redefining the resolve-class. However, there is still another problem:
If my cursor stops at the end of a namespace without any slash, like this
(clojure.set, I got an exception again. This time, the exception is
Armando, Nate and Panduranga
Many thanks for the answers.
Regards,
Alex
2012/8/28 Nate Young youn...@gmail.com
On Thu, Aug 23, 2012 at 11:22 AM, Alexsandro Soares
prof.asoa...@gmail.com wrote:
Can you provide the code for this?
Certainly.
The parser's current source position is
The ctor call for ServerSocket should be (ServerSocket. port localhost).
Thanks, but the code doesn't get that far. It's the line before that throws
the error:
(defn run-server [port what-to-do]
On Tuesday, August 28, 2012 7:49:54 AM UTC-4, Fogus wrote:
The ctor call for
Command line arguments that are not strings need to be converted
prior to use by your main function.
That makes sense, I need to cast it to a symbol, yes? I have a problem with
that though. At the REPL I tried something like this:
(def hey (resolve (symbol what-to-do)))
which worked great
I'm playing around with a parser combinator library from the paper Monadic
Parser Combinators by Hutton and Meijer [1] and came up with this:
https://gist.github.com/3501273
That's just enough to show the error I'm getting when (expr) calls (factor):
Clojure 1.4.0
user= (load-file expr.clj)
Did you guys settle on having more meetings? The Farmers Branch location
works for me.
On Thursday, March 10, 2011 7:28:10 AM UTC-6, Alex Robbins wrote:
Anyone else in the north Dallas area using/interested in Clojure? I'd
love to get together.
Alex
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Hey guys, sorry about the radio silence. Unofficially, it looks like
the meetup will be:
Third Wednesday of the month, 6:30-8:30 PM
At Improving Enterprises in Addison, just off the Dallas North Tollway
We are also working on getting a meetup group set up so that there
will be a place to get
On Tue, Aug 28, 2012 at 1:08 PM, Armando Blancas abm221...@gmail.com wrote:
I'm playing around with a parser combinator library from the paper Monadic
Parser Combinators by Hutton and Meijer [1] and came up with this:
https://gist.github.com/3501273
That's just enough to show the error I'm
Nelson, that explained the case quite nicely. I appreciate it.
On Tuesday, August 28, 2012 1:01:32 PM UTC-7, Nelson Morris wrote:
On Tue, Aug 28, 2012 at 1:08 PM, Armando Blancas
abm2...@gmail.comjavascript:
wrote:
I'm playing around with a parser combinator library from the paper
Observe:
user= (defn count-sequence [ seq]
(match [seq]
; [([so-far [x xs]] :seq)] (str 1: so-far x xs)
[([[ sequence]] :seq)] (str 2: sequence)))
user= (count-sequence [1 2 3])
2:[1 2 3]
Now uncomment the commented line:
user= (defn count-sequence [ seq]
(match [seq]
[([so-far
This may also be relevant.
The following works:
(defn factorial [ args]
(match [args]
[([n] :seq)](factorial 1 n)
[([so-far 1] :seq)] so-far
[([so-far n] :seq)] (factorial (* n so-far) (dec n
user= (factorial 5)
120
However, changing the order of clauses
I apologize about the beginner questions. I am new to Clojure.
If I do this:
(defn run-server [port what-to-do]
(let [server-socket (ServerSocket. port localhost)]
(while (not (. server-socket isClosed))
(listen-and-respond server-socket what-to-do
(defn -main [ args]
(let
On Tue, Aug 28, 2012 at 7:01 PM, Brian Marick mar...@exampler.com wrote:
Observe:
user= (defn count-sequence [ seq]
(match [seq]
; [([so-far [x xs]] :seq)] (str 1: so-far x xs)
[([[ sequence]] :seq)] (str 2: sequence)))
user= (count-sequence [1 2 3])
2:[1 2 3]
Now uncomment the
The issue with an exception when trying to find the doc of a namespace is a
known issue, and should be fixed in Clojure 1.5 when it is released:
http://dev.clojure.org/jira/browse/CLJ-902
You could try out clojure-1.5.0-alpha4 to see if it fixes the problem for you,
if that happens to be
See [1].
Valid ServerSocket constructors:
ServerSocket()
ServerSocket(int)
ServerSocket(int,int)
ServerSocket(int,int,InetAddress)
Your code is trying:
ServerSocket(int,string)
[1] http://docs.oracle.com/javase/1.4.2/docs/api/java/net/ServerSocket.html
On Tue, Aug 28, 2012 at 8:25 PM, larry
Larry,
You are missing a bit of important code from the example in the blog post.
In his original example, echo is a function (note the code block
that begins, (defn echo ...).
His listen-and-respond function is what handles reading from the
ServerSocket, and responding back on the
So, now I do this:
(defn run-server [port]
(let [server-socket (ServerSocket. port localhost)]
(while (not (. server-socket isClosed))
(listen-and-respond server-socket who-is-here-now
(defn -main [ args]
(let [port (Integer/parseInt (first args))]
(println Server is
That seems to be right. I just tested it and that seem to fix the problem.
I am confused about why Clojure appears to give the wrong line number? Is
there often a difference between the line number Emacs gives and line
number in the stack trace?
On Tuesday, August 28, 2012 10:34:16 PM
Thanks, Arron. I have a lot to learn about discerning the meaning of the
stack traces. It said line 27, but, as you point out, the real problem was
on line 28.
On Tuesday, August 28, 2012 10:36:15 PM UTC-4, Aaron Cohen wrote:
Larry,
You are missing a bit of important code from the
Hi,
I noticed that on the Clojure REPL, `format` works fine:
user= (format foo%s :s)
foo:s
user= (format foo%s 's)
foos
However, on the CLJS REPL (Rhino), I get this:
ClojureScript:cljs.user (format foo%s :s)
foo���'s
ClojureScript:cljs.user (format foo%s 's)
foo���'s
Wanted to first confirm
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