Ok,
I had assumed from this
https://groups.google.com/d/topic/clojure/KQ6AM-nxlTQ/discussion
that I could
Is there anything else not safe to extend?
Cheers
D
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It could create interop problems with other JavaScript libraries (including
Google Closure). extending Object modifies its prototype. The problem is
that objects are used as maps in JavaScript and these new properties will
appear if someone tries to iterate through the keys with for..in.
It's unfo
Clojure> (require '(clojure [string :as string]))
nil
Clojure> (string/replace-first "a" #"b" "c")
"a"
Clojure> (string/replace-first "a" #"b" (comp str last))
nil
when pass a pattern and a function to the replace-first function, and
the pattern doesn't match the string (first argument), replace-f
The amount of effort that's gone into ClojureScript One initiative is
very impressive!
Just one question. I've tried following the instructions on the page:
https://github.com/brentonashworth/one/wiki/Getting-started
All goes well until the step where I evaluate the expression (js/alert
"hello")
Hi,
New to Clojure, excited to take a peek at ClojureScriptOne. Installed
it, now running script/run; repl appears, application visible at
localhost:8080, clicked 'Development'. Now trying to enter forms at
the repl, as per
https://github.com/brentonashworth/one/wiki/Getting-started
However if
Computers don't accuse, they process data. And they are not (yet?)
capable of reading a user's intentions.
On 11 Jan., 19:02, Cedric Greevey wrote:
> It seems dubious to me that it accuses users of cheating when they
> clearly had no intent to cheat. Is this intended behavior of 4Clojure
> or a b
Thank you very much! This is earthshaking stuff.
And me too hope to contribute soon :)
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Known bug, fix forthcoming.
http://dev.clojure.org/jira/browse/CLJ-753
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I was able to get org-babel evaluation working with Clojure. Requires
latest versions of Clojure mode, Org mode, and Lein. Check out my dotfiles
repo for examples.
https://github.com/stuartsierra/dotfiles
-S
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Hi,
first of thank you putting this together. As I'm working my way through the
documentation, I'm experiencing a strange error.
I have a Clojurescript REPL up and running in Emacs (tested with (js/alert
"..")) and I try
ClojureScript:one.sample.view> (def fiv 5)
I get this:
(def fiv 5)
"Error
Hi,
you're probably still in the Clojure REPL, read "Manually starting a
ClojureScript REPL"
and then refresh the development view in your browser and you're all set.
L
2012/1/12 Huft
> Hi,
>
> New to Clojure, excited to take a peek at ClojureScriptOne. Installed
> it, now running script/run;
Clojure relase 1.4.0-alpha4 has been uploaded to oss.sonatype.org and
should be on Maven Central within 24 hours.
Patches included in this alpha release:
- CLJ-890: tagged reader literals (early draft)
- toString caching
- Only capture a shallow copy of the current Frame in
binding-conveyor-fn
Oops! Need to refresh the browser. Works - thanks.
On Jan 13, 2:41 pm, László Török wrote:
> Hi,
>
> you're probably still in the Clojure REPL, read "Manually starting a
> ClojureScript REPL"
>
> and then refresh the development view in your browser and you're all set.
>
> L
>
> 2012/1/12 Huft
>
Ah - RTFM - difference between Clojure- and Clojurescript- REPLs -
thanks
So now I have the Clojurescript REPL running; but entering '(js/alert
"hello")' just causes the REPL to hang [doesn't return]
On Jan 13, 2:41 pm, László Török wrote:
> Hi,
>
> you're probably still in the Clojure REPL, rea
You are trying to evaluate ClojureScript in a Clojure REPL.
The easiest way to get a ClojureScript REPL is to run:
script/cljs-repl
If you start a ClojureScript REPL manually then you always need to
load/reload the development page afterwords to establish the
connection.
On Jan 12, 5:07 pm, ute
The ClojureScript REPL will hang if it is not connected to the
browser. Make sure you are on the development page of ClojureScript
One, which is the only page that will allow a REPL connection. If you
are already there then just refresh the page.
The best way to start a ClojureScript REPL is descr
I can't reproduce this problem. What you are showing here should work.
The following steps work for me:
script/cljs-repl
ClojureScript:cljs.user> (in-ns 'one.sample.view)
ClojureScript:one.sample.view> (def fiv 5)
(def fiv 5)
5
On Jan 13, 9:36 am, László Török wrote:
> Hi,
>
> first of thank yo
I have a few issues. What do the following warnings mean and what should I
do about them?
user=> (require 'mypackage)
Warning: *default-encoding* not declared dynamic and thus is not
dynamically rebindable, but its name suggests otherwise. Please either
indicate ^:dynamic *default-encoding*
Clojure> (use 'clojure.data)
nil
Clojure> (doc diff)
-
clojure.data/diff
([a b])
Recursively compares a and b, returning a tuple of
[things-only-in-a things-only-in-b things-in-both].
Comparison rules:
* For equal a and b, return [nil nil a].
* Maps are subdiffed where key
Have seen this as well. For efficiency sake 1.3.0 requires :dynamic
meta for convention based ear-muffed vars (intended for rebinding).
The warning actually is quite descriptive if you think about it.
See more in-depth discussion at
http://blog.japila.pl/2011/03/cant-dynamically-bind-non-dynamic-va
On Fri, Jan 13, 2012 at 17:47, wrote:
> I have a few issues. What do the following warnings mean and what should I
> do about them?
Did you read them?
"*default-encoding* not declared dynamic and thus is not dynamically rebindable"
;; wont' work:
(binding [*default-encoding* some-value]
(do-
funny, if I start the cljs repl via script/cljs-repl it works
I will look into it, maybe it's Emacs
thx
2012/1/13 Brenton
> I can't reproduce this problem. What you are showing here should work.
>
> The following steps work for me:
>
> script/cljs-repl
> ClojureScript:cljs.user> (in-ns 'one.sa
On Fri, Jan 13, 2012 at 12:16 PM, László Török wrote:
> funny, if I start the cljs repl via script/cljs-repl it works
>
> I will look into it, maybe it's Emacs
>
> thx
>
Out of curiosity, how were you starting it before?
David
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Right. I had several tabs open, and I was reading the Clojure One tutorial
and the same thing happened.
Then I switched to the tab with the Development page and then when I ran
alert, I saw it there and it returns.
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I've just merged to ClojureScript master the new property lookup
syntax as outlined in the ticket http://dev.clojure.org/jira/browse/CLJS-89
and the design page at
http://dev.clojure.org/display/design/Unified+ClojureScript+and+Clojure+field+access+syntax.
This is a potentially *breaking* change t
How about using (extend-type default ...) ? Is it safe to use it?
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Andrew writes:
> Eric asks: The only function ob-clojure uses from swank-clojure is
> swank:interactive-eval-region' (used with `slime-eval') in the
> org-babel-execute:clojure' function. Which function would now be used
> to evaluate a region of clojure code? Would `slime-eval-region'
> suffice?
On Fri, Jan 13, 2012 at 1:32 PM, Jozef Wagner wrote:
> How about using (extend-type default ...) ? Is it safe to use it?
The question is how to implement that efficiently.
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On Thu, Jan 12, 2012 at 3:31 AM, markus wrote:
> Computers don't accuse, they process data. And they are not (yet?)
> capable of reading a user's intentions.
Technically no, but it's doubtful that a user using a macro like "for"
intends to "cheat", so from the *programmer's* standpoint it's not
c
I have installed clr in a folder called "clr" and have net installed.
I can click on main exe and get the clr to give me a repl . When I get
ready to create the ui. file in the example where am i storing files
In leiningen i create a folder for the project all the files are
stored in the project
I'm playing around with a basic map/reduce pattern with the following
code:
(ns read-lines.core
(:gen-class)
(:use [clojure.java.io :only (reader)]))
(defn -main [& args]
(with-open [rdr (reader "/tmp/mydata.txt")]
(let [file-handle (line-seq rdr)]
(println (reduce (fn [m x] (inc
Wow, just by changing pmap to map, the same code runs to completion in
1 minute 35 seconds. I'm guessing this means that context switching
caused a huge performance penalty in this case since the "work" being
executed was so miniscule?
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If I am reading your example correctly, that pmap is simply being used to
iterate over the characters of a line read into a string, then yes, you are
using pmap in a very inefficient way. pmap creates a future for every
element of the sequence you give it, and that is significantly more
computatio
> pmap creates a future for every
> element of the sequence you give it, and that is significantly more
> computation work (allocating, initializing, and invoking future objects)
> than your function that simply returns 1 regardless of the value of its
> argument.
Makes perfect sense. Thanks for c
Hi,
I noticed that `extends?`, `class` and `type` are not implemented on
ClojureScript (yet) – will they eventually be implemented? Is there a
way beside these to determine if a reified object implements a certain
protocol?
Shantanu
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On Fri, Jan 13, 2012 at 3:36 PM, Shantanu Kumar wrote:
> Hi,
>
> I noticed that `extends?`, `class` and `type` are not implemented on
> ClojureScript (yet) – will they eventually be implemented? Is there a
> way beside these to determine if a reified object implements a certain
> protocol?
>
> Sha
Notes from the trenches.
I successfully migrated both ClojureScript One and Domina to the new
syntax in about ~35 minutes (including tests). I had an unfair
advantage having worked on the ClojureScript change, but for your own
purposes the following techniques for migration should help:
- length
FYI: You can see my changes to ClojureScript One at
https://github.com/brentonashworth/one/tree/props and those to Domina
at
https://github.com/fogus/domina/commit/cc2ee723b28fd3de6023156cab23b86daaa72210
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I have Emacs 24 with and clojure-mode, etc. packages from marmelade under
Mac OS 10.6.8.
I followed the instructions for Emacs:
https://github.com/brentonashworth/one/wiki/Emacs
("For this example, we will start the Clojure REPL ...")
When I get to the point, where I have both a Clojure and a C
On Fri, Jan 13, 2012 at 2:21 PM, jayvandal wrote:
> I have installed clr in a folder called "clr" and have net installed.
> I can click on main exe and get the clr to give me a repl . When I get
> ready to create the ui. file in the example where am i storing files
> In leiningen i create a folde
Add meta data in your definitions as in
(def ^{:dynamic true} *earmuff*
Luc
> I have a few issues. What do the following warnings mean and what should I
> do about them?
>
> user=> (require 'mypackage)
> Warning: *default-encoding* not declared dynamic and thus is not
> dynamically re
I replied a bit too fast, I didn't realized you wanted to such an advanced
thing
It is probably more a JVM question than a Clojure question then.
On Fri, Jan 13, 2012 at 3:42 AM, jaime wrote:
> Well actually I also tried commons-exec but it's the same as
> clojure.java.shell - they run system c
Now I understand...that makes sense - thanks, D
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To
When I run leiningen , I can execute lein within any folder. For instance I
have a folder c:\projects, i run lein new abc. I then have a folder "abc"
that is created ,and all the projects files are stored within folder "abc".
I installed clojure clr in a folder "clr". I can run clojure.main.exe
Clojail errs on the side of safety and not on the side of "Oh, well maybe
he wasn't trying to break the sandbox. Let's allow it anyway.". Treating
macros as opaque is just another hole in what is already difficult
sandboxing. Macros are not even remotely close to functions. They *create*
code.
Brenton writes:
> Today we are releasing ClojureScript One. A project to help you get
> started writing single-page applications in ClojureScript.
The "script/run" script does not work on cygwin. Here is a patch
to fix it.
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On Fri, Jan 13, 2012 at 6:47 PM, Anthony Grimes wrote:
> Clojail errs on the side of safety and not on the side of "Oh, well maybe he
> wasn't trying to break the sandbox. Let's allow it anyway.". Treating macros
> as opaque is just another hole in what is already difficult sandboxing.
> Macros ar
trying do something like this
(def my-keys [a b c])
(defn my-func [m] (let [{:keys my-keys} m] (prn a b c)))
(my-func {:a 1 :b 2 :c 3})
tried '[a b c], ['a 'b 'c], and ["a" "b" "c"] for my-keys but they all
give a Don't know how to create ISeq from: clojure.lang.Symbol error
thanks
andy
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An alternative solution to trying to make macros opaque is just to
disallow the macros which depend on disallowed functions. It should be
a relatively simple matter to generate this list programmatically from
clojure.core source. So instead of just saying "You can't use count."
It would say "You c
On Fri, Jan 13, 2012 at 7:49 PM, Andrew Xue wrote:
> trying do something like this
>
> (def my-keys [a b c])
>
> (defn my-func [m] (let [{:keys my-keys} m] (prn a b c)))
>
> (my-func {:a 1 :b 2 :c 3})
>
>
> tried '[a b c], ['a 'b 'c], and ["a" "b" "c"] for my-keys but they all
> give a Don't know
On Jan 13, 2012, at 4:47 PM, Anthony Grimes wrote:
> Clojail errs on the side of safety and not on the side of "Oh, well maybe he
> wasn't trying to break the sandbox. Let's allow it anyway.". Treating macros
> as opaque is just another hole in what is already difficult sandboxing.
> Macros ar
On Fri, Jan 13, 2012 at 11:47 AM, wrote:
> Warning: *default-encoding* not declared dynamic and thus is not dynamically
> rebindable, but its name suggests otherwise. Please either indicate
More indirectly, stop using clojure-contrib and move to
http://dev.clojure.org/display/design/Where+Did+Cl
On Fri, 2012-01-13 at 09:03 -0800, vitalyper wrote:
> Clojure> (diff ["a" "b" "c"] ["c" "d"])
> [["a" "b" "c"] ["c" "d"] nil]
>
> Looks like the result doesn't match documentation:
> "Recursively compares a and b, returning a tuple of
> [things-only-in-a things-only-in-b things-in-both]."
It does
I responded to this earlier, but I accidentally hit the 'reply to author'
button instead of 'reply to post', and thus it went directly to Cedric
rather than to the group. I'll respond here and quote the previous emails:
On Fri, Jan 13, 2012 at 8:57 PM, Anthony Grimes
wrote:
> 4Clojure uses cl
given something like
(defn my-func [a b c] (str a b c))
is there something like (extract-parameters my-func) which returns (a
b c)?
thanks,
andy
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Something like (:arglists (meta #'my-func)) ?
Regards,
BG
On Sat, Jan 14, 2012 at 12:01 PM, Andrew Xue wrote:
> given something like
>
> (defn my-func [a b c] (str a b c))
>
> is there something like (extract-parameters my-func) which returns (a
> b c)?
>
> thanks,
> andy
>
> --
> You received t
Hi,
I want to set a default behavior on a protocol.
The following article describes how to implement inheritance in
Clojure by using `extend`, but `extend` doesn't exist in
ClojureScript.
Is there a way to set a default behavior on a protocol in
ClojureScript?
(david-mcneil.com :blog), Implementat
;; BigDecimal comparisons do not appear to work as I
;; would have expected them to:
(= 2e+3M 2000M) ;; -> false
;; Looking at the definition of '=', I can see that
;; it defers to clojure.lang.Util/equiv, which
;; compares them as Object, by reference. Fine.
;; I thought I could use equals,
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