In my local Clojure Users Group last week, we encountered an odd behavior
with r/fold.
Specifically, it seems like the three-arity version (r/fold combiner-fn
reducer-fn coll) doesn't call the combiner-fn if the coll has fewer
elements than the default partition-size (512).
This leads to some
Hi!..given than clojure contrib is deprecated, which could be the option
now?...(thread-stopper or set-break-handler from clojure.repl maybe?)
2) this could work with a non ring server?..I'm using other server which
doesnt provide a function for shutdown nor restart, how could use it for
this
Divya,
Here's a simple example for converting text from an input stream (which you can
convert any file into):
(ns sample.tika
(:require [clj-tika.core :as tika])
(defn extract-text
"Extracts the text from the input stream"
[input-stream]
(tika/parse input-stream))
If all you need is the text, you could use Apache Tika to extract
it: http://tika.apache.org/
There's a simple clojure lib to get you
started: https://github.com/alexott/clj-tika
I've used it to pull text out of .doc, .pdf, and .odt files.
Ron
On Wednesday, January 1, 2014 11:49:3
e to see you there!
Ron
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As for portability, we started with everything on Heroku, but we've been
slowly migrating to aws as our needs scale up. Our configuration makes this
really easy: we can move the rabbitmq piece over one week, then the clojure
the next, without changing anything but a few lines in a config file.
At Rewryte, we use Rails for the web frontend and Clojure for the data
processing backend for exactly the reasons you described.
We use RabbitMQ to communicate between the two. This maintains separation
between the two apps (no JRuby required), and lets us scale them both
independently, while t
At rewryte.com, we use Clojure for all our back- end data processing.
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Zack: It only accepts plain txt files at the moment. We're working on
supporting other formats. :)
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So I'd like to log the AssertionError using clojure.tools.logging
library. For example if my function throws the following:
#
How do I "redirect it" to be printed in the console using the
clojure.tools.logging library?
Thanks,
R.
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hello,
How to group a collection of maps by multiple keys?
For example
(def m1 [{:a 1 :b 2 :c 3}{:a 1 :b 2 :c 4}{:a 1 :b 4 :c 3}{:a 1 :b 4 :c
3}])
(group-by-x [:a :b] m1)
I'd it like to return this:
[{:a 1 :b 2}[{:a 1 :b 2 :c 3}{:a 1 :b 2 :c 4}], {:a 1 :b 4}[{:a 1 :b
4 :c 3}{:a 1 :b 4 :c 3}]]
Hi everybody..I've a little question..the way in than clojure
implement curry is affected for the jvm or it is a "Rick
decision" ...in haskell every function accept only one parameter and
if you call a function with >1 parameter it use currying...I feel than
it is really natural and more clean than
hi everybody...I'm trying install clojurescript on windows...I'm
follow the steps but I'm not sure with this specific step:
Create a goog.jar file and copy to lib
cd closure\library\closure
jar cf goog.jar goog
copy goog.jar ..\..\..\lib
now..I've downloaded clojure, closure and the closure
a String and a
> String[]. Use into-array to create a string array, and pass that as
> the second arg.
>
> On Sep 13, 6:21 pm, ron peterson wrote:
>
>
>
>
>
>
>
> > I have a following API call that I need to make from Clojure:
>
> > class A
>
>
I have a following API call that I need to make from Clojure:
class A
doSomething(java.lang.String arg1, String... args)
so I tried
(def a (new A)) ;this works
(.doSomething a "abc" "efg" "hij")
;this doesn't work giving me no matching method found: doSomething for
class A
--
You received
from contrib 1.2.0). You might try:
>
> [org.clojure.contrib/standalone "1.3.0-SNAPSHOT"]
>
> instead but at this point you might need to start looking at the new
> contrib libraries and migrating to those:
>
> http://dev.clojure.org/display/design/Contrib+Library+
I've upgraded my projects in Eclipse 3.7 to use Clojure 1.3 beta1
release, however when I try running it in Eclipse the REPL console
throws the following exception. Other versions of Clojure 1.3 alpha
gave the same exception: (but clojure 1.2.1 works fine)
Warning: *print-detail-on-error* not dec
Thank you everyone for the solution.
Ron.
On May 25, 6:24 pm, Luc Prefontaine
wrote:
> Use:
>
> (read-string (read-string "[{:a \"blah\" :b 23} {:d 34 :c \"hello\"}]")
>
> I believe your expression is wrong, (:d should be {:d.
>
> Luc P.
&
Hi,
If I have a following string for example:
[{:a "blah" :b 23}(:d 34 :c "hello"}]
how can I convert it to a clojure data structure?
Thanks,
Ron.
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I'm using the [clojureql "1.0.0"] library.
(:require [clojureql.core :as sq])
The following query doesn't generate correct sql:
(-> (sq/select (sq/join (sq/table db :tableA)(sq/table db :tableB)(sq/
where (= :tableA.id 27219)))
(sq/where (= :tableA.group_id 27202)))
(sq/union (sq/select (sq/join
user=> (- (new Double "1786.28") (read-string "1786.28"))
0.0
Following uip on what Hugo said, modifying your code to a double
returns the following.
On Nov 27, 1:32 pm, "Hugo Duncan"
wrote:
> On Fri, 27 Nov 2009 14:50:27 -0500, Nathan Cunningham
>
> wrote:
> > Apparently there are cases whe
Works for me: I just overwrote my copy of resultset-seq with one that
uses getColumnLabel, and I am now getting the results I expected from
complex queries (in Interbase, at least).
On Feb 23, 9:33 am, Rich Hickey wrote:
> Sounds good to me - any drawbacks to this? Does it require that the
> col
I am trying to build Clojure on Fedora 10. When I first run ant, I get
a message about the compliance level 1.4 not supporting target version
1.5. So I add source="1.5" to the javac task. Then I get a lot of
warnings and the following 3 errors.
[javac] 354. ERROR in /home/rdp/lisp/clj/cloju
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