For this particular case, you could also use regexps:
user> (require '[clojure.string :as s])
nil
user> (s/replace " bb cc" #" +" " ")
" bb cc"
Regards,
Stuart
On 31 May 2011 08:15, iz bash wrote:
> so clojures like my first programming language. most of the time
> now ,i
I'm using some legacy inhouse java libraries that are pretty
complicated (lots of boilerplate and ugly code bloat to produce
something useful). I would like to build a facade in clojure and
provide a jar file so that this clojure facade can be easily used by
java developers that do not know anythin
I don't have Enclojure installed at the moment, but the error you're getting
indicates that the jars you've pulled out do not contain the
org.enclojure.repl.main class. You'll need the jar file that contains an entry
at org/enclojure/repl/main.class. As a last resort, you could grab the source
Hi Finn,
On Tue, May 31, 2011 at 4:19 PM, finbeu wrote:
> I would like to build a facade in clojure and
> provide a jar file so that this clojure facade can be easily used by
> java developers that do not know anything at all about clojure
> (they're scared to death when I show them clojure code
Hi Ambrose,
actually, I want to write this facade to learn how the java interop
works. I'm still a beginner but calling java from clojure already
works pretty good and I'm able to get things done faster with less
code. The next step is then to make this clojure facade available for
the java develo
Indeed, I switched from Vim to Emacs with Viper and Vimpulse and so far it
has been a very pleasant experience, giving me best of both worlds.
On Tue, May 31, 2011 at 4:18 AM, Joop Kiefte wrote:
> And Emacs has Viper-mode (and other Vi-keybinding-stuff) :)
>
> 2011/5/30 J.R. Garcia :
> > Having
The main thing that we have run into is leiningen's inability to build a
native dependency. We have a few projects where we had to build some
wrappers and those have to be built and installed with a shell script
before running leiningen. Is that in the pipeline?
Cheers,
Aaron Bedra
--
Clojur
I noticed the following behavior in Clojure 1.3 related to the new
object literal syntax [1]:
Clojure 1.3.0-master-SNAPSHOT
user=> (defrecord Foo [a b])
user.Foo
user=> (:a #user.Foo{:a 1 :b 2})
1
user=> #java.awt.Point[10 20]
#
user=> (.getX #java.awt.Point[10 20])
CompilerException java.lang.Run
A couple of aspects of records that I have found useful:
* they provide a type for dispatching. Rather than rooting around in
the map to find out what it is, a multi-method can dispatch directly
on the type of the object.
* having a central definition of the main keys contained in the
structure is
Just uploaded fs 0.8.0 to clojars with your changes. Thanks!
(I've changed the assert in your code to :pre checks)
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Hi,
I'm playing around with the latest commit on core.logic with Clojure 1.2.1.
There's a snippet of minikanren in the paper "Relational Programming in
miniKanren: Techniques, Applications, and Implementations"
that I'm having trouble translating.
(Page 13, http://pqdtopen.proquest.com/#abstract
Whoops, I forgot to translate the literal list syntax to [] vector syntax.
user=> (run 2 [q]
(exist [x y z]
(conde
((== [x y z x] q))
((== [z y x z] q)
([_.0 _.1 _.2 _.0] [_.0 _.1 _.2 _.0])
Still puzzled at the semantics
On Tue, May 31, 2011 at 1:02 PM, Ambrose Bonnaire-Sergeant <
abonnaireserge...@gmail.com> wrote:
> user=> (run 2 [q]
> (exist [x y z]
>(conde
> ((== (x y z x) q))
> ((== (z y x z) q)
>
You have to take note of the forma
On Tue, May 31, 2011 at 1:10 PM, Ambrose Bonnaire-Sergeant <
abonnaireserge...@gmail.com> wrote:
> From the paper:
>
> We use conde to get several values--syntactically, conde looks like cond
>> but
>> without => or else.
>
>
> What does it mean by "get" several values?
>
> Thanks,
> Ambrose
>
U
Don't forget gen-interface. In fact, you may want to have just one
gen-class with a static factory method, which produces an anonymous
implementation of one of the interfaces, which is an abstract factory
for making other objects that implement other interfaces. This
provides the least coupling bet
On Tue, May 31, 2011 at 11:30 AM, David McNeil wrote:
> A couple of aspects of records that I have found useful:
>
> * they provide a type for dispatching. Rather than rooting around in
> the map to find out what it is, a multi-method can dispatch directly
> on the type of the object.
And you can
On Tue, Apr 19, 2011 at 2:29 PM, Christopher Redinger
wrote:
> I've created a home to store the answer to this question.
> http://dev.clojure.org/display/community/Clojure+Success+Stories
...
> If you have successfully deployed Clojure code, let the world know.
> Send an email with a brief (one pa
Hi everyone,
I just wanted to announce release 1.0 of my latest project: stockings.
https://github.com/fxtlabs/stockings
http://stockings.fxtlabs.com
http://clojars.org/com.fxtlabs/stockings
I mentioned some of this work to some of you at the last Bonjure
(Montreal Clojure User Group) meeting, so
Hi *! I've tried a few searches on parsing XML files larger than
memory, didn't find anything and wrote a simple framework for parsing
XML via STAX to lazy sequence of defrecords. It is therefore capable
of reading several GB of xml without much problems. It is quite
declarative but also quite ugly
On May 31, 5:57 am, Aaron Bedra wrote:
> The main thing that we have run into is leiningen's inability to build a
> native dependency. We have a few projects where we had to build some
> wrappers and those have to be built and installed with a shell script
> before running leiningen. Is that in
thanks everyone!! that was really great help.
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To u
Forgot to mention some things:
- https://github.com/alamar/clojure-xml-stream on github.
- I'm yet to figure out that Lenin thing, so ant.
- The two-step handler system (there's a function that takes a method
and returns a handler, and handler accepts item being constructed and
stream-reader) seem
Just a quick comment on a generic, similar issue.
I need to parse Gigabyte files of multi-line JSON ( which is a similar
problem to parsing Gigabytes of XML) where the record delimiter is not
a newline. My strategy is to determine record separators (e.g. by
counting the level of nestings) as chun
jackson can read/parse large JSON files through its streaming API:
http://wiki.fasterxml.com/JacksonInFiveMinutes#Streaming_API_Example
U
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No
Interestingly, I had planned on using Jackson, but found that because
my JSON data in fact was not always well-formed and needed minor
cleaning steps (e.g. double newline without interleave commas between
JSON chunks), I needed to create better chunks of well-formed JSON
first in a streaming sort o
I certainly will have a look. I'm working on a technical analysis library so
you're lib will certainly be useful.
Andreas
On 01/06/2011, at 5:09 AM, fxt wrote:
> Hi everyone,
>
> I just wanted to announce release 1.0 of my latest project: stockings.
> https://github.com/fxtlabs/stockings
> http
On Tue, May 31, 2011 at 3:45 PM, iz bash wrote:
>
> thanks everyone!! that was really great help.
You're welcome.
Hopefully, reading and understanding the code posted here (not just
mine) will both get you a better grasp of the various ways these kinds
of things can be tackled using HOFs like ma
Hi,
I've to use clojure.contrib.sql's insert-records fn.
Usage: (insert-records table & records)
Inserts records into a table. records are maps from strings or
keywords (identifying columns) to values.
So, for ex. this works -
(clojure.contrib.sql/insert-records :blogs
Hi Manoj,
On Wed, Jun 1, 2011 at 12:35 PM, mmwaikar wrote:
> Hi,
>
> I've to use clojure.contrib.sql's insert-records fn.
>
> Usage: (insert-records table & records)
>
> Inserts records into a table. records are maps from strings or
> keywords (identifying columns) to values.
>
> So, for ex. thi
On Wed, Jun 1, 2011 at 12:35 AM, mmwaikar wrote:
> Hi,
>
> I've to use clojure.contrib.sql's insert-records fn.
>
> Usage: (insert-records table & records)
>
> Inserts records into a table. records are maps from strings or
> keywords (identifying columns) to values.
>
> So, for ex. this works -
>
On Wed, Jun 1, 2011 at 12:56 AM, Ken Wesson wrote:
> On Wed, Jun 1, 2011 at 12:35 AM, mmwaikar wrote:
> => [2 x :q]
> [2 x :q]
WTF? I wrote [2 42 :q] there, of course. What the devil happened to my
email in transit?
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insert-records is a function, so you should be able to just apply it?
(apply insert-records :blogs (map #(zipmap [:a :b :c :d] %)
[[1 2 3 4] [5 6 7 8]]))
FWIW, the * notation around the parens makes it very difficult (for
me) to read the code example. Just write
Hi all,
I find myself using the following pattern quite often:
(assoc m :key (inc (or (:kay m) 0))
To increment or somehow transform a value in a map that I'm not sure it exists.
Is there an idiomatic way of doing this sort of thing in a short and concise
way?
Kind Regards
Andreas
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On Wed, Jun 1, 2011 at 1:05 AM, Andreas Kostler
wrote:
> Hi all,
> I find myself using the following pattern quite often:
> (assoc m :key (inc (or (:kay m) 0))
>
> To increment or somehow transform a value in a map that I'm not sure it
> exists.
> Is there an idiomatic way of doing this sort of
Thanks Ken,
I should have known the (m :key 0) solution as I've used that before :(
Oh well :)
Andreas
On 01/06/2011, at 3:11 PM, Ken Wesson wrote:
> On Wed, Jun 1, 2011 at 1:05 AM, Andreas Kostler
> wrote:
>> Hi all,
>> I find myself using the following pattern quite often:
>> (assoc m :key (i
You're welcome.
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For the record, you can also use fnil:
=> (defn mystery [m k] (update-in m [k] (fnil inc 0)))
#'user/mystery
=> (mystery {} :a)
{:a 1}
=> (mystery {:a 4} :a)
{:a 5}
2011/6/1 Ken Wesson :
> On Wed, Jun 1, 2011 at 1:05 AM, Andreas Kostler
> wrote:
>> Hi all,
>> I find myself using the following pa
2011/6/1 Andreas Kostler :
> Thanks Ken,
> I should have known the (m :key 0) solution as I've used that before :(
> Oh well :)
=> (:k {} 0)
0
works too
> Andreas
>
> On 01/06/2011, at 3:11 PM, Ken Wesson wrote:
>
>> On Wed, Jun 1, 2011 at 1:05 AM, Andreas Kostler
>> wrote:
>>> Hi all,
>>> I fi
My preferred method is
(update-in m [:key] (fnil inc 0))
On May 31, 10:05 pm, Andreas Kostler
wrote:
> Hi all,
> I find myself using the following pattern quite often:
> (assoc m :key (inc (or (:kay m) 0))
>
> To increment or somehow transform a value in a map that I'm not sure it
> exists.
>
Hey Miki,
On 31 May 2011 17:52, Miki wrote:
> Just uploaded fs 0.8.0 to clojars with your changes. Thanks!
I'm glad to contribute something and I'll be glad to remove some code
from my project!
> (I've changed the assert in your code to :pre checks)
Ah yes that sounds better.
Cheers,
David
On 1 June 2011 07:00, Alan Malloy wrote:
[...]
> FWIW, the * notation around the parens makes it very difficult (for
> me) to read the code example. Just write code as-is, and let the
> reader notice that the parens are what's different (it's not hard).
[...]
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