#clojure – 2012-09-02

2012-09-02

00:07	Frozenlock	Where does lein store the libraries?
00:07	bbloom	you mean dependencies?
00:08	Frozenlock	er, yes
00:08	Frozenlock	I've found my .lein with profile and all, but no dependencies.
00:09	xeqi	~/.m2
00:09	clojurebot	I don't understand.
00:10	bbloom	yup, what xeqi said. it shares/reuses your local maven cache
00:10	Raynes	Frozenlock: lein doesn't store them or reuse anything. It uses maven for dependency resolution.
00:10	Raynes	And maven stores them in ~/.m2.
00:11	Frozenlock	Thanks guys, found it! (I would have never guessed it..)
00:11	Raynes	Don't make me get all pedantic on you, bbloom.
00:11	bbloom	Raynes: sorry :-) didn't it used to use ivy or something?
00:11	xeqi	well.. to be pedantic is uses aether for dependency resolution
00:11	Raynes	bbloom: Nosir.
00:12	xeqi	it used to use maven, through ant.. I think
00:12	bbloom	ah
00:12	xeqi	much prettier just to use pomegranate now
00:12	bbloom	i've had to interact with maven a tad at the office lately
00:12	bbloom	what a nightmare.
00:13	Raynes	xeqi: aether is maven.
00:13	Raynes	As of 3.0, right?
00:13	xeqi	maven uses aether
00:13	Raynes	Right.
00:13	xeqi	they're owned by seperate groups
00:13	Raynes	Is there really any point in making a distinction?
00:13	xeqi	apache -> maven ; eclipse -> aether
00:13	Raynes	I'd like to arrange a bout with you, sir.
00:13	xeqi	no, I usually just say maven cause people know what I mean
00:15	xeqi	http://www.thefreedictionary.com/bout .. "a period of time doing something, such as drinking"
00:15	bbloom	seems like you guys know this stuff… let me ask a java question of you folks, since i don't think i'd like the answer from java people :-)
00:16	bbloom	if i have a bunch of java projects, each with it's own git repository, but i want dependencies between them
00:16	bbloom	is there a decent build system that lets me have source dependencies between them in a sane way?
00:16	Raynes	Isn't that lein checkouts?
00:16	xeqi	git submodules ?
00:17	bbloom	git submodules are sure to be involved ;-)
00:17	bbloom	lein*
00:17	Raynes	lein works for java too, fwiw.
00:17	xeqi	you can use checkouts in that way...
00:18	bbloom	holy non-idiomatic close parens batman! https://github.com/guv/lein-checkouts/blob/master/src/leiningen/checkouts.clj
00:18	xeqi	yeah.. thats not what we're refering to
00:18	bbloom	link?
00:18	clojurebot	your link is dead
00:19	xeqi	https://github.com/technomancy/leiningen/blob/master/doc/FAQ.md - question 5
00:19	michaelr`	google chrome changed their menu icon.. wow
00:19	shoky	hotdogs
00:19	shoky	they call it
00:19	michaelr`	grill?
00:20	shoky	3 bland hotdogs.
00:20	bbloom	xeqi: ah thanks
00:20	michaelr`	three hotdogs sounds too much while on the other hand 3 cucumbers would be just fine..
00:20	bbloom	not exactly what i want
00:20	bbloom	somebody suggested gradle & the multiple-project-builds support
00:21	bbloom	which i looked at the docs for, and it seemed much closer to what i imagined
00:21	casion	what's the proper way to round or truncate decimals in clojure?
00:21	bbloom	(find-doc "round")
00:21	bbloom	there are several options
00:22	bbloom	,(int 1.7)
00:22	xeqi	$findfn 2.33 2.0
00:22	clojurebot	1
00:22	lazybot	[]
00:22	xeqi	$findfn 2.33 2
00:22	lazybot	[clojure.core/long clojure.core/short clojure.core/unchecked-long clojure.core/rand-int clojure.core/unchecked-short clojure.core/unchecked-int clojure.core/byte clojure.core/biginteger clojure.core/int clojure.core/bigint clojure.core/unchecked-byte]
00:22	xeqi	$findfn 2.33 3
00:22	lazybot	[clojure.core/unchecked-inc-int]
00:22	Frozenlock	bbloom: What's up with those parens?!
00:22	bbloom	Frozenlock: shrug i didn't write them!
00:22	xeqi	hmm, not sure I like those options
00:23	casion	yeah, I haven't found anything other than going it java-y
00:23	casion	which is not very fun
00:23	bbloom	shrug yeah, it seems like round should be in core....
00:24	xeqi	$findfn 2.55 3
00:24	lazybot	[clojure.core/unchecked-inc-int]
00:24	bbloom	haha yeah, not what you want at all
00:25	bbloom	,((fn [x] (int (+ x 0.5)) 2.55)
00:25	clojurebot	#<ExecutionException java.util.concurrent.ExecutionException: java.lang.RuntimeException: EOF while reading>
00:25	bbloom	,((fn [x] (int (+ x 0.5))) 2.55)
00:25	clojurebot	3
00:25	mpan	,(doc unchecked-inc-int)
00:25	clojurebot	"([x]); Returns a number one greater than x, an int. Note - uses a primitive operator subject to overflow."
00:25	mpan	is there a difference between the various bots who evaluate?
00:26	bbloom	https://github.com/flatland/lazybot & https://github.com/hiredman/clojurebot
00:26	mpan	thanks
00:27	mpan	clojure/jruby interop?
00:28	casion	,(bigdec (/ (int (* 0.000234234 100000)) 100000.0))
00:28	clojurebot	0.00023M
00:28	casion	meh.
00:29	mpan	oh, that sounds like a cool plugin
00:29	mpan	in general, is there a common way to do interop with other dynamic jvm languages?
00:30	bbloom	mpan: unlikely for any generic mechanism, as most other dynamic jvm languages have their own wrapper objects and calling conventions
00:30	xeqi	call it the java way?
00:30	casion	I shouldnt be so annoyed that I have to write this myself, but it seems odd that neither java nor clojure has this function
00:30	casion	unless I'm missing something still, which is quite likely
00:31	bbloom	casion: java doesn't have round?
00:31	bbloom	i'm sure it does...
00:31	mpan	and just pass data around as java objects?
00:31	bbloom	what do you need?
00:33	casion	bbloom: round or truncate a decimal to x significant digits
00:34	casion	there is java.lang.Math/round, but that rounds to int/long
00:35	casion	so you still have to mult/div to round decimals
00:35	casion	obviously a very short function to write, but strange that it's not already there
00:35	mpan	is there something for making desktop guis that isn't swing?
00:36	casion	mpan: my brother and I both use swt (http://www.eclipse.org/swt/)
00:37	mpan	thanks
00:39	mindbender1	How much do I have to pay to look at the datomic source code!
00:39	michaelr`	mindbender1: one atomic transaction ;)
00:39	mindbender1	michaelr`: How much quantity is that?
00:40	michaelr`	mindbender1: 4
00:40	xeqi	(let [df (java.text.format.DecimalFormat. "#.##")] (->> 2.33 (.format df) (.parse df)))
00:41	xeqi	&(let [df (java.text.format.DecimalFormat. "#.##")] (->> 2.33 (.format df) (.parse df)))
00:41	lazybot	java.lang.ClassNotFoundException: java.text.format.DecimalFormat
00:41	mindbender1	michaelr`: you mean a decimal 4?
00:41	xeqi	&(let [df (java.text.DecimalFormat. "#.##")] (->> 2.33 (.format df) (.parse df)))
00:41	lazybot	⇒ 2.33
00:41	xeqi	blah
00:41	michaelr`	mindbender1: i mean 4 ever ;)
00:42	mindbender1	michaelr`: wow that looks like infinity!
00:42	michaelr`	mindbender1: no it's much more but also could be a bit less
00:43	mindbender1	michaelr`: then it should look more like a duality
00:44	casion	xeqi: i lookend into DecimalFormat, and not only does it return a string… it's slow at even that :(
00:45	casion	just plain round with mult/div is almost 100x faster than DecimalFormat, not including casting back to decimal
00:45	xeqi	yeah, I was surprised I found it mentioned so many places
00:47	casion	I found it funny that I found a forum suggesting to use Decimalformat and converting back to double… with 20+ posts lecturing the OP on why not to use doubles for currency
00:47	casion	it was somewhat ironic
00:47	xeqi	heh, its even used in the javadoc for DecimalFormat
00:48	xeqi	in the example
00:51	michaelr`	flatten
00:51	xeqi	~flatten
00:51	clojurebot	flatten is rarely the right answer. Suppose you need to use a list as your "base type", for example. Usually you only want to flatten a single level, and in that case you're better off with concat. Or, better still, use mapcat to produce a sequence that's shaped right to begin with.
00:52	michaelr`	i keep forgetting it all the time
00:53	michaelr`	it would be wise imho to make flatten do what is suggested above
00:56	michaelr`	what was the solution for this using (into)?
00:56	michaelr`	I remember i liked it the best
00:57	xeqi	michaelr`: what are you trying to do?
00:57	tolstoy	Are folks using nrepl much these days? Anyone know how to disconnect from emacs?
00:58	xeqi	tolstoy: I think theres a ticket to add one; in the meantime you can kill nrepl-connection
00:58	michaelr`	xeqi: hmm.. well i need to flatten a seq
00:59	tolstoy	xeqi: Ah, thanks. Kinda missing C-c C-c, too. ;)
00:59	Frozenlock	Eh.. can't I just require in a cljs repl? --> (require [siren.core :as s])
01:00	tolstoy	xeqi: And it seems that lein repl :headless was key to working in that way. I suppose it's still not as persnickety as swank/slime et, al.
01:01	bbloom	Frozenlock: unfortunately not
01:01	Frozenlock	Is there something vaguely near?
01:01	bbloom	i don't know of anyone working on it
01:02	Frozenlock	So I have to require directly in my namespace declaration?
01:02	bbloom	it's generally problematic because it couldn't work after advanced compilation or in the browser or whatnot
01:02	bbloom	yeah, you have to do it in the ns form
01:04	bbloom	Frozenlock: if you look in the cljs source at (defmethod parse 'ns ...
01:05	bbloom	look for analyze-deps
01:05	bbloom	in theory, you could add require, use, etc to clojurescript for interactive development
01:05	bbloom	but it would take some work: both design & implementation
01:06	Frozenlock	I would like to, however at the moment I lack the necessary knowledge :(
01:06	Frozenlock	... but coming along, a week ago I was strugling getting my cljs repl up and running :)
01:08	tomoj	how would you do require?
01:10	tomoj	just compile all the cljs files on the classpath beforehand?
01:13	bbloom	tomoj: depends
01:14	bbloom	if you're just in a cljs repl on rhino or something, you can just run the file through the analyzer
01:14	bbloom	but if you're in the browser, it's much trickier
01:14	bbloom	the real issue is advanced compilation
01:14	bbloom	in which case, i think it's impossible
02:17	samrat	is it safe to store passwords in Noir's session? a session is stored on the server-side right?
02:23	tolstoy	samrat: Yes, it's in memory on the server.
02:24	samrat	tolstoy: so, is it safe to keep the username and password saved in a session? the user and pass are of another app, which wierdly do not support oauth
02:25	tolstoy	If you're confident no one can hack into your JVM and take a look at things, I guess its relatively safe.
02:25	tolstoy	I'm no exper.
02:26	tolstoy	What I've done is encrypt the user/pass, the b64 encode it and use that as a cookie.
02:26	tolstoy	Then store the key on the server side somewhere, so it's about as secure as where/how I store that key.
02:27	samrat	thank, will keep that in mind
02:40	tolstoy	I'm no security expert, but, generally, if you use HTTPS for client/server interaction, you're much better off.
02:41	tolstoy	If you're working internal server to another internal server, https is STILL a good idea. ;)
02:41	samrat	i'm using clj-http to login by sending user,pass and apikey as a POST request, but when the password is incorrect clj-http gives me a 401 exception
02:42	samrat	..which means I can't access the actual response, is that a bug?
02:42	samrat	tolstoy: ok, I am using https
02:42	tolstoy	Nope. 401 is the actual response.
02:42	amalloy	$google http 401 not authorized
02:42	samrat	what I get is this: ExceptionInfo clj-http: status 401 clj-http.client/wrap-exceptions/fn--1189 (client.clj:95)
02:42	lazybot	[HTTP Error 401 Unauthorized Explained] http://www.checkupdown.com/status/E401.html
02:43	samrat	thats quite different from what I get if i get a 200 code
02:43	tolstoy	401 means unauth… yeah, what lazybot said.
02:43	tomoj	if you want to get the actual response, pass :throw-exceptions false
02:44	amalloy	oh, yeah. clj-http's default behavior of throwing slingshot exceptions is kinda a pain
02:45	amalloy	an http client getting a 4xx response is not exceptional - it's part of the expected behavior of an http client
02:46	samrat	tomoj: thanks, that was what I was looking for
02:48	tomoj	you can build your own request fn that doesn't use wrap-exceptions :/
02:54	michaelr`	why GET params get keywordized, but POST aren't?
02:54	michaelr`	compojure
03:13	tomoj	lol I wrote (apply merge-with merge maps)
03:13	tomoj	actually, that's what I wanted
03:13	tomoj	:)
03:54	bbloom	scala ANF transform? < 500 lines…. my clojure ANF transform? < 50 lines
03:54	bbloom	if i meet rich hickey, i think i'm going to give him a hug
03:54	bbloom	:-)
03:55	Raynes	Congratulations, you've written code in a language without classes and curly brackets.
03:55	Raynes	:p
03:56	bbloom	it's much more than that. the scala transform uses a mutable AST with a big transform visitor pattern thing
03:56	bbloom	https://github.com/scala/scala/blob/master/src/continuations/plugin/scala/tools/selectivecps/SelectiveANFTransform.scala
03:56	bbloom	but the cljs AST is so much more pleasant to work with:
03:56	bbloom	https://github.com/brandonbloom/cljs-cps/blob/master/cps.cljs
03:57	bbloom	oops
03:57	bbloom	i mean:
03:57	bbloom	https://github.com/brandonbloom/cljs-cps/blob/master/cps.clj
04:20	samrat	how do I turn {:a 5} to "{:a 5}"?
04:21	Sgeo	,(str {:a 5})
04:21	clojurebot	"{:a 5}"
04:21	Sgeo	There might be additional something or other needed in order to ensure that it can be read back in by the reader, I'm not sure
04:22	Sgeo	,(doc str)
04:22	clojurebot	"([] [x] [x & ys]); With no args, returns the empty string. With one arg x, returns x.toString(). (str nil) returns the empty string. With more than one arg, returns the concatenation of the str values of the args."
04:22	Sgeo	Not especially helpful
04:22	Sgeo	,(str "\n")
04:22	clojurebot	"\n"
04:22	Sgeo	,(str {:a "\n"})
04:22	clojurebot	"{:a \"\\n\"}"
04:22	bbloom	use pr-str
04:22	bbloom	,(pr-str {:a 5})
04:22	clojurebot	"{:a 5}"
04:22	bbloom	,(doc pr)
04:22	clojurebot	"([] [x] [x & more]); Prints the object(s) to the output stream that is the current value of out. Prints the object(s), separated by spaces if there is more than one. By default, pr and prn print in a way that objects can be read by the reader"
04:23	bbloom	,(doc str)
04:23	clojurebot	"([] [x] [x & ys]); With no args, returns the empty string. With one arg x, returns x.toString(). (str nil) returns the empty string. With more than one arg, returns the concatenation of the str values of the args."
04:23	bbloom	,(doc print)
04:23	clojurebot	"([& more]); Prints the object(s) to the output stream that is the current value of out. print and println produce output for human consumption."
04:23	Sgeo	Admittedly, samrat didn't specifically ask about readable in particular
04:23	Sgeo	>.>
04:25	raek	pr-str is the right one if you want something you can read back
04:25	raek	(its inverse is read-string)
04:26	raek	,(str {:x "abc"})
04:26	clojurebot	"{:x \"abc\"}"
04:26	bbloom	raek: it's PARTIAL inverse...
04:26	raek	hrm
04:26	samrat	thanks guys
04:26	raek	bbloom: partial?
04:27	Sgeo	Can't read in an object that can only be printed in an unreadable manner
04:27	raek	because it only holds for readable/printable types?
04:27	bbloom	right
04:27	Sgeo	,(pr-str java.lang.Object)
04:27	clojurebot	"java.lang.Object"
04:27	Sgeo	Hmm
04:28	bbloom	,(pr-str (java.lang.Object.))
04:28	clojurebot	"#<Object java.lang.Object@55f16c1e>"
04:28	bbloom	,(read-string (pr-str (java.lang.Object.)))
04:28	clojurebot	#<RuntimeException java.lang.RuntimeException: Unreadable form>
04:28	Sgeo	Darn, I was about to try that
04:28	bbloom	:-)
04:29	Sgeo	,(pr-str (java.lang.Class.))
04:29	clojurebot	#<CompilerException java.lang.IllegalArgumentException: No matching ctor found for class java.lang.Class, compiling:(NO_SOURCE_PATH:0)>
04:29	Sgeo	Can Classes be constructed manually?
04:30	bbloom	Sgeo: well i'd assume so, considering Clojure does it at the repl!
04:30	Sgeo	Good point.
04:30	Sgeo	Is it as easy as new Class(...)?
04:30	bbloom	I believe Clojure uses a library that emits JVM byte codes
04:30	bbloom	but you may also be able to do it with the reflection namespace
04:31	bbloom	clojurescript emits javascript strings and the repl evals them
04:31	Sgeo	In Smalltalk it's as simple as sending the appropriate message to the class you want to subclass
04:32	Sgeo	The IDE typically shows you the code it will execute
04:32	bbloom	in clojure, it's as simple as evaluating deftype…. java… not so much….
04:32	bbloom	but still doable!
04:33	Chousuke	Sgeo: the Class class has a newInstance method for creating new instances.
04:34	Sgeo	Neat
04:35	Sgeo	Wait, new instances? As in, new instances of classes where the class is known at runtime? I was expecting methods for making new classes at runtime
04:35	amalloy	Class/newInstance is generally pretty useless. you usually need to reflect to find its constructors
04:37	amalloy	Sgeo: constructing classes at runtime is absurdly heavy-weight. don't go down that road
04:38	Sgeo	Isn't that what Clojure does? Or does REPL usage mean that all Clojure's usage of such is in circumstances where it doesn't really matter?
04:39	Sgeo	(As in, if the code is being compiled it can do it at compile-time, and most run-time creation of classes would be at the REPL where some latency is expected?
04:39	amalloy	yes, it is what clojure does. and if you feel like spending four years inventing a new language to do it, that's a good reason to go down such a heavyweight road
04:44	Sgeo	Wait, by heavy-weight, do you mean slow performance-wise, or difficult/annoying to write correct code to do, or both?
04:49	amalloy	all of the above
04:49	amalloy	(but mostly the latter, i expect)
04:50	Sgeo	mostly both? </kidding>
05:05	michaelr`	is there a core function like group-by where the value is item and not a collection of items
05:05	michaelr`	?
05:06	michaelr`	something like:
05:06	michaelr`	(into {} (map (fn [field] {(field :name) field}) col))
05:15	noidi	michaelr`, you could use zipmap
05:15	noidi	,(zipmap (map :name c) [{:name "foo"} {:name "bar"}])
05:15	clojurebot	#<CompilerException java.lang.RuntimeException: Unable to resolve symbol: c in this context, compiling:(NO_SOURCE_PATH:0)>
05:16	noidi	oops
05:16	noidi	,(let [c [{:name "foo"} {:name "bar"}]] (zipmap (map :name c) c))
05:16	clojurebot	{"bar" {:name "bar"}, "foo" {:name "foo"}}
05:28	michaelr`	noidi: ah cool
05:28	michaelr`	thanks
07:12	hughfdjackson	this is a daft question, but is there any obvious reason why in lein's repl, "(use '[clojure.core.logic :as l])" should result in "java.io.FileNotFoundException: Could not locate clojure/core/logic__init.class or clojure/core/logic.clj on classpath: (NO_SOURCE_FILE:0)"
07:13	hughfdjackson	?
07:17	hughfdjackson	i'm running clojure 1.2.1, btw
07:21	nbeloglazov	hughfdjackson: it seems core.logic is not in classpath. Do you use lein to manage dependencies?
07:22	hughfdjackson	i'm attempting to ;)
07:22	hughfdjackson	i'd imagined that anything in core didn't require installation before usage in the repl
07:22	hughfdjackson	i'm assuming i was wrong in this
07:22	nbeloglazov	Yes. core.logic is standalone lib
07:23	hughfdjackson	:D okay
07:23	hughfdjackson	thanks
09:24	tomoj	hmm
09:24	tomoj	since clojure is AOT compiled, do you have to compile your own clojure for 1.7?
09:24	tomoj	java 1.7 I mean
09:25	tomoj	e.g. reducers appears to be compiled against jsr166y
09:36	wmealing_	is it just me, or does paradit mode / emac suck for inserting square brackets
09:39	wmealing_	it doesn't treat hightlighted areas like it would for ( or {
09:42	tomoj	highlighted areas?
09:44	wmealing_	for example
09:44	wmealing_	say i selected "this is a dog" in this sentence.. i use the mouse to highlight it, make aregion i think the word is.. then if it was the ( style brackets, i wanted i,d hit super shift (
09:44	wmealing_	and it would put it at the start and end of the highlight
09:44	wmealing_	but if i do the same with [ , it doesn't work.
09:45	tomoj	hmm, super shift (?
09:45	skoodge	is there any API overview for core.logic similar to http://clojure.org/api ?
09:46	wmealing_	super, the windows key..
09:46	wmealing_	s-( in the emacs speak iirc
09:47	tomoj	do `C-h k` that
09:47	tomoj	I don't think I have such a binding
09:47	tomoj	for me, just typing ( or [ wraps the region appropriately
09:47	tomoj	M-( and M-[ also work
09:50	wmealing_	it tells me M-[ is undefined
09:50	wmealing_	so.. i need to figure out why my paredit is being dumb
09:51	wmealing_	M-( works.. and brings up the help
09:51	wmealing_	but M-[ does not
10:02	wmealing_	tomoj: looks like i dont need M-[ just highlight and [
10:03	wmealing_	thanks though, you got me on the right path
10:07	tomoj	hmm
10:07	tomoj	C-h v paredit-version ?
10:08	tomoj	if it's not 23, maybe upgrade
10:08	tomoj	http://mumble.net/~campbell/emacs/paredit-beta.el
10:09	tomoj	oh
10:09	tomoj	I have this in my init.el
10:09	tomoj	(define-key paredit-mode-map (kbd "M-[") 'paredit-wrap-square)
10:09	tomoj	(define-key paredit-mode-map (kbd "M-{") 'paredit-wrap-curly)
10:13	wmealing_	ah, yep, the warp did it
10:13	wmealing_	thanks
10:13	wmealing_	tomoj: the wrap did it
10:13	clojurebot	I don't understand.
10:16	tomoj	wtf ? https://raw.github.com/gist/3bab917287a7fd635a84/f38bfe3e270556e467f3fc02062af7ea10781390/gistfile1.txt
10:21	wmealing_	tomoj: that'll teach you
10:22	tomoj	hmm
10:23	tomoj	https://gist.github.com/3c8677f8cdb5e95683f9 the line in the try is in my stacktrace
10:23	tomoj	//aargh ??
10:23	lazybot	tomoj: What are you, crazy? Of course not!
10:24	tomoj	oh
10:54	wmealing_	I'll ask before i invest into this, i'm interested in adding a web gui to configure a daemon i'm writing, noir looks easy enough.. is it easy to integrate that into an existing daemon (via threads.. or something else ?)
10:54	wmealing_	any suggestions, or better ways to do it ?
10:55	wmealing_	or should i write it as anoir app, and thread off the daemon.
10:56	xeqi	wmealing_: can your daemon call run-jetty?
10:58	wmealing_	i guess it could.
10:58	casion	why would you want the daemon to run the gui? that seems backwards to me
10:59	wmealing_	so you think the gui should run the daemon ?
11:00	wmealing_	or rather, the noir application, should fire it up
11:00	casion	I'd think that would make more sense
11:01	xeqi	how is your web frontend going to interact with the daemon?
11:01	wmealing_	essentially just write the configuration files for it
11:01	wmealing_	the daemon watches for config changes
11:01	wmealing_	and re-reads it when they do
11:02	casion	they can just be separate then can't they?
11:02	casion	why any relation at all
11:02	wmealing_	users.
11:02	casion	you can just have a parent that launches both
11:02	wmealing_	if they have to start two things
11:02	wmealing_	its complicated
11:02	wmealing_	so, make these into jars.
11:03	wmealing_	and call webapp/start and daemon/start
11:03	wmealing_	hmm, thats not a bad idea
11:03	wmealing_	keeps the code base separate
11:04	wmealing_	i like that best
11:04	wmealing_	that way i can pull out the webui if its not required
11:04	wmealing_	easily
11:04	xeqi	yeah, that would be my recommendation
11:04	wmealing_	thankyou both for talking it through with me.
11:05	casion	thank you for having an updated version of clj-audio ;)
11:05	wmealing_	which reminds me, i added recording support.. the guy hasn't responded to my pull / mail about that
11:06	casion	I'm writing a clj-audiofile atm
11:06	wmealing_	on github ?
11:06	casion	so better handle format and file handling beyond what javax.sound.sampled does
11:06	casion	it will be there soon
11:06	wmealing_	please let me know when
11:06	wmealing_	yeah, sampled is preetty limited.
11:06	casion	I just figured out all the specifics last night, implementing stuff today
11:07	wmealing_	i'd like to be able to hook that up to clj-audio to read and write directly into different formats.
11:07	casion	I had that working in repl last night quite thoroughly
11:07	casion	along with getting lazy-seqs of various formats, and a few basic dsp ops
11:07	wmealing_	nice.
11:08	casion	I should have at least a basic file->seq setup online today
11:08	casion	maybe with some dsp, not sure… stuff is slow and that makes me queesy
11:26	tomoj	"select is not broken"
11:27	wmealing_	except when it is
11:27	tomoj	well, the fact that PHM fold can silently skip over exceptions in the reduce function and descend into a stack overflow is sorta broken
11:27	tomoj	but the reason it did that is cus my code is broken
11:28	tomoj	I assumed it was a bug in clojure from the stacktrace..
11:28	tomoj	wonder why they catch those exceptions
11:29	wmealing_	https://bugzilla.redhat.com/show_bug.cgi?id=812148 <-- select being broken.
11:29	wmealing_	hopefully that is public enough
11:39	tomoj	huh "You are not authorized to access bug #812148"
11:39	tomoj	secret bug?
11:40	gfredericks	does lein-cljsbuild support turning assertions off?
11:40	zenoli	Does core.logic work on collections other than vectors? Specifically, I've got a bunch of sets that I'm working with.
11:41	gfredericks	zenoli: it only works naturally with seqs; depending on what you're doing exactly you might be able to make it work
11:41	gfredericks	but if you want to do set-logic then you probably can't
11:43	wmealing_	tomoj: ah sorry dude.. yeah i think it has specific customer details in it
11:43	wmealing_	and they opted not to share.
11:44	zenoli	gfredericks: Thanks. It's actually worse than that, since I'm actually using a custom multiset collection. I might be able to do something with a seq of the key-multiplicity pairs, then, but I'll have to mull it over.
11:45	gfredericks	zenoli: I just mean if you can treat them like a seq you'll be okay, but if what you want to do involves logic statements like (intersectiono a b c), then it'll at best be fairly inefficient
11:46	gfredericks	I guess you could do sets in a decent way if you had an ordering...
11:46	gfredericks	a multiset is just a sorted seq :)
11:49	casion	I guess today is better than never to learn how to use git(hub)
11:49	wmealing_	good luck
11:49	casion	you people and your fancy idea sharing :P
11:49	wmealing_	:)
11:56	zenoli	gfredericks: Well, clustered if not exactly sorted, based on how seq emits it. If I can keep the set-specific stuff out of the rules and just unify on the tricky element-specific relations, it might be possible to use without paying too horrible of a performance penalty.
12:04	gfredericks	zenoli: I just meant that multisets biject naturally with sorted seqs; not that the multiset would naturally emit sorted elements
12:05	gfredericks	e.g., if you represented your multisets within core.logic as sorted seqs, then you could do relatively efficient set operations
12:19	samrat	why is Noir giving me a "Key must be Integer" error even though I am passing an integer(using GET)?
12:20	samrat	...any way to convert all keys to Integers?
12:21	gfredericks	&(get [1 2] :foo)
12:21	lazybot	⇒ nil
12:21	gfredericks	huh
12:24	gensymv	hello, does clojure support pattern matching?
12:25	gfredericks	not natively, but there's a core.match library that is pretty good
12:25	duck1123	gensymv: not exactly, but there are plenty of ways you can get a similar effect
12:25	gfredericks	it does have destructuring though
12:26	AimHere	If you mean regex string patterns, then yes, otherwise, what those other guys said
12:26	gensymv	gfredericks: thanks
12:26	duck1123	multimethods are also pretty good for a lot of things
12:28	gensymv	duck1223: are multimethods overloaded functions?
12:29	gensymv	i.e java styled polymorph methods?
12:30	AimHere	Well it's polymorphism, but you're dispatching on anything-you-like, instead of on the type of the argument
12:31	gensymv	i see, thanks.
12:31	AimHere	You could take a date as an argument, and call one function when there's an 'r' in the month, and another otherwise, sort of thing
12:33	xeqi	([1 2] :foo)
12:33	xeqi	&([1 2] :foo)
12:33	lazybot	java.lang.IllegalArgumentException: Key must be integer
12:35	gfredericks	oh that's it; weird.
12:36	gfredericks	I guess get just uses the generic map interface, so vectors aren't special to it
12:37	gfredericks	well the Vector#get could still throw :/
12:37	gfredericks	&([1 2] 70)
12:37	lazybot	java.lang.IndexOutOfBoundsException
12:53	BreadMonster	How do I install Clojure on Windows, guys?
12:54	nbeloglazov	BreadMonster: do you have JDK installed?
12:55	BreadMonster	Yup.
12:55	BreadMonster	Wait, how do I check?
12:55	BreadMonster	javac, right?
12:55	nbeloglazov	yes
12:55	BreadMonster	Okay, I don't have JDK.
12:55	raek	then you install Leiningen
12:55	BreadMonster	Don't you get precompiled binaries?
12:55	BreadMonster	I mean .jar files?
12:56	nbeloglazov	BreadMonster: check Program Files. You may have jdk but it's not in the PATH variable.
12:56	jkkramer	BreadMonster: http://dev.clojure.org/display/doc/Clojure+Tools and https://github.com/technomancy/leiningen#readme
12:57	BreadMonster	Nope, I lack JDK.
12:57	BreadMonster	Very unfortunate.
12:57	BreadMonster	And I'm on my family PC, so I can't install anything.
12:58	jkkramer	BreadMonster: http://tryclj.com/ and http://www.4clojure.com/ if you want to play with Clojure without installing
12:58	nbeloglazov	Does lighttable requires installed clojure and jdk?
13:03	BreadMonster	alright, thanks guys :0
13:03	BreadMonster	Also, I'm working on a To Do application.
13:03	BreadMonster	can I do that in Clojure?
13:05	nbeloglazov	You can do all kind of things in clojure. Except may be low level coding.
13:08	BreadMonster	Really?
13:08	BreadMonster	Is there a tutorial of some sorts?
13:08	Frozenlo`	BreadMonster: I might get flamed for saying this here, but if you just want a todo application (not to learn the language), you can just go with org-mode :P
13:08	gensymv	is there a way to make the clojure repl more verbose (i.e like sbcl or clisp)? the error messages can get a little hard to decipher sometimes.
13:09	BreadMonster	Oh, I can do it in C, Python, Java, Mathematica, NASM, and half a different languages.
13:09	BreadMonster	I had no idea how to do it in LISP.
13:09	BreadMonster	Hence I watned to start with thtat.
13:13	Frozenlock	BreadMonster: Are you looking for clojure or clojurescript?
13:13	dansalmo	http://stackoverflow.com/questions/12238024/is-there-a-clojure-function-between-read-string-and-load-string
13:15	Frozenlock	dansalmo: I answered.
13:15	dansalmo	thank you
13:15	Frozenlock	Hope it's enough for you ^^
13:16	samrat	why is this doseq not working inside Noir's defpage? https://www.refheap.com/paste/4802
13:17	ivaraasen	samrat: doesn't doseq return nil?
13:18	Frozenlock	samrat: Also, why 'when-let'? Couldn't it be 'when'?
13:18	dansalmo	FrozenLock: Works perfectly, but I seems like magic. How does it make read-string read all of the objects?
13:20	Frozenlock	,(doc read-eval)
13:20	clojurebot	"; When set to logical false, the EvalReader (#=(...)) is disabled in the read/load in the thread-local binding. Example: (binding [read-eval false] (read-string \"#=(eval (def x 3))\")) Defaults to true"
13:21	samrat	ivaraasen: thanks
13:21	samrat	Frozenlock: oh, yeah. something was missing there too
13:23	dansalmo	, (+ 1 1)
13:23	clojurebot	2
13:26	Sgeo	,(map (partial + 1) [1 2 3 4 5])
13:26	clojurebot	(2 3 4 5 6)
13:45	gfredericks	&(let [s " S I I ( S I I)"] (read-string s))
13:45	lazybot	⇒ S
13:46	gfredericks	&(let [s " S I I ( S I I)"] (read-string (str "[" s "]")))
13:46	lazybot	⇒ [S I I (S I I)]
13:46	Frozenlock	Is there a way to get a function metadata in cljs? The docstrings, the arguments list and all.
13:46	gfredericks	Frozenlock: I think that's normally only attached to the var
13:47	Frozenlock	So there's no '(doc some-fn)' in cljs?
13:48	gfredericks	oh you said cljs
13:48	gfredericks	is there metadata at all in cljs?
13:48	gfredericks	certainly there are no vars, so I think docstrings are ignored
13:48	casion	is there a bug in nrepl that makes it clear the current namespace and not be able to load another?
13:49	Frozenlock	gfredericks: This is very very sad.
13:49	gfredericks	there does seem to be metadata generally
13:50	gfredericks	looks like you can't put metadata on functions though
13:50	dansalmo	Frozenlock: I am such a noob. I am glad to find out about the safe read, but it seems that my original issue was solved by adding ()'s around the form, which I did inadvertently when trying the safe-read.
13:50	gfredericks	dansalmo: yeah that's what I was trying to point out above; I wasn't sure why you thought Frozenlock's code worked
13:51	dansalmo	, (read-string "( S I I( S II ))"
13:51	clojurebot	#<ExecutionException java.util.concurrent.ExecutionException: java.lang.RuntimeException: EOF while reading>
13:51	dansalmo	, (read-string "( S I I( S II ))")
13:51	clojurebot	(S I I (S II))
13:51	dansalmo	0, (last (read-string "( S I I( S II ))"))
13:51	dansalmo	, (last (read-string "( S I I( S II ))"))
13:51	clojurebot	(S II)
13:51	dansalmo	, (last (read-string "( S I I( S I I ))"))
13:51	clojurebot	(S I I)
13:52	dansalmo	It was magic! The magic of the perfect mistake in my application of his advice
13:53	Frozenlock	Weird, I had to change the read-eval binding otherwise it would sometime choke on the string.
13:53	dansalmo	I did not think read-string did any eval
13:53	gfredericks	it only does if you have a #= form
13:53	dansalmo	I thought only load-string did.
13:53	Sgeo	,(read-string "#=(+ 1 1)")
13:53	clojurebot	#<RuntimeException java.lang.RuntimeException: EvalReader not allowed when read-eval is false.>
13:54	Sgeo	,(binding [read-eval true] (read-string "#=(+ 1 1)"))
13:54	clojurebot	2
13:54	gfredericks	I think read-eval should be off by default now that there are data readers
13:56	Sgeo	,(meta 'read-eval)
13:56	clojurebot	nil
13:56	Sgeo	?
13:56	Sgeo	,(meta #'read-eval)
13:56	clojurebot	{:ns #<Namespace clojure.core>, :name read-eval, :added "1.0", :doc "When set to logical false, the EvalReader (#=(...)) is disabled in the \n read/load in the thread-local binding.\n Example: (binding [read-eval false] (read-string \"#=(eval (def x 3))\"))\n\n Defaults to true"}
13:56	Frozenlock	dansalmo: My apologies, I was totally wrong :)
13:57	Sgeo	,(:dynamic (meta #'read-eval))
13:57	clojurebot	nil
13:57	Sgeo	??
13:57	lazybot	Sgeo: What are you, crazy? Of course not!
13:57	Sgeo	If it's nil, how come I'm able to binding it?
13:58	Sgeo	,(doc binding)
13:58	clojurebot	"([bindings & body]); binding => var-symbol init-expr Creates new bindings for the (already-existing) vars, with the supplied initial values, executes the exprs in an implicit do, then re-establishes the bindings that existed before. The new bindings are made in parallel (unlike let); all init-exprs are evaluated before the vars are bound to their new values."
14:01	bbloom	,(.isDynamic #'read-eval)
14:01	clojurebot	true
14:01	bbloom	seems like the metadata and the Var object are out of sync
14:01	bbloom	looks like a bug
14:03	bbloom	,((juxt (comp :dynamic meta) #(.isDynamic %)) #'agent)
14:03	clojurebot	[nil true]
14:04	bbloom	seems like a consistent bug for all of the dynamic vars in RT.java
14:04	Sgeo	gasp someone used comp instead of ->? I'm in shock
14:05	Sgeo	,(doc juxt)
14:05	clojurebot	"([f] [f g] [f g h] [f g h & fs]); Takes a set of functions and returns a fn that is the juxtaposition of those fns. The returned fn takes a variable number of args, and returns a vector containing the result of applying each fn to the args (left-to-right). ((juxt a b c) x) => [(a x) (b x) (c x)]"
14:06	bbloom	,((juxt #(-> % meta :dynamic) #(.isDynamic %)) #'warn-on-reflection)
14:06	clojurebot	[nil true]
14:06	bbloom	just for you :-)
14:06	bbloom	anyway, yeah, setDynamic should set the :dynamic metadata too :-P
14:08	Sgeo	Possibly including a function that combines those
14:09	bbloom	that's an interesting idea...
14:10	hyPiRion	,(doc comp)
14:10	clojurebot	"([] [f] [f g] [f g h] [f1 f2 f3 & fs]); Takes a set of functions and returns a fn that is the composition of those fns. The returned fn takes a variable number of args, applies the rightmost of fns to the args, the next fn (right-to-left) to the result, etc."
14:11	bbloom	,(let [$ (fn [& args] (apply comp (reverse args)))] (($ meta :doc) #'read-eval))
14:11	clojurebot	"When set to logical false, the EvalReader (#=(...)) is disabled in the \n read/load in the thread-local binding.\n Example: (binding [read-eval false] (read-string \"#=(eval (def x 3))\"))\n\n Defaults to true"
14:11	bbloom	i like it....
14:13	Sgeo	Not quite my suggestion, but I think you can see I'm getting at a less macro-y, more functional and more general replacement for ->
14:13	bbloom	ah, i overlooked the x
14:13	gfredericks	$google clojure thrush
14:13	lazybot	[fogus: Thrush in Clojure – Redux] http://blog.fogus.me/2010/09/28/thrush-in-clojure-redux/
14:14	gfredericks	Sgeo: ^
14:15	bbloom	gfredericks: welere there you go :-)
14:15	bbloom	well there my keyboard failed me
14:16	yankov	is lazyseq good for both random access and appending/prepending elements?
14:16	gfredericks	nope
14:16	bbloom	seq implies linear operations starting from the head
14:16	Sgeo	gfredericks, awesome. Why wasn't that put in Clojure instead of -> and ->>?
14:16	yankov	dammit
14:17	gfredericks	Sgeo: heckiphino
14:17	bbloom	vectors are what you want if you need logorithmic access
14:17	bbloom	Sgeo: I quite like -> and ->>
14:17	gfredericks	but vectors won't get you prepension
14:17	yankov	bbloom: yeah, but vectors are bad for appending/prepending stuff?
14:17	yankov	yep
14:17	bbloom	saves the need for the extra # and % symbols
14:17	gfredericks	vectors are good for appending
14:18	gfredericks	yankov: if you need something more general, look at finger trees
14:18	hyPiRion	-> and ->> are more general and more succinct. That's not to say they should be used everywhere.
14:18	bbloom	yankov: they are logorithmic for both prepends and appends. seqs have constant time prepends and linear appends
14:18	gfredericks	bbloom: not for prepends
14:18	Sgeo	hyPiRion, more succint in some cases I get, but more general?
14:19	bbloom	gfredericks: what not for prepends?
14:19	yankov	gotcha.. thanks. I'll look more
14:19	Sgeo	-> always stuffs into second argument, ->> into last argument
14:19	gfredericks	bbloom: vectors are linear time for prepends
14:19	bbloom	Sgeo: first argument. second element of forms
14:19	hyPiRion	Sgeo: True enough, not more general. I forgot you can use #() to simulate -> and ->>.
14:19	gfredericks	bbloom: at least if you want a vector as the result
14:20	bbloom	hm. yeah, clearly you can prepend constant time and get a seq
14:20	bbloom	but i'm surprised it's linear…. i guess i'll need to check my internal assumption about their tree structure
14:20	bbloom	i've read the map/set implementations
14:20	bbloom	but not vec
14:20	gfredericks	bbloom: it's related to the array-mappedness
14:20	pyykkis	oh, $ form is interesting
14:20	gfredericks	particularly the fact that the underlying arrays are all the same length
14:22	bbloom	gfredericks: are you sure….?
14:22	bbloom	this looks like how i expected the tree to work
14:22	gfredericks	bbloom: 99%
14:23	gfredericks	enough to bet $20 on it
14:23	bbloom	i'm looking at PersistentVector.java
14:23	bbloom	public PersistentVector cons(Object val)
14:23	gfredericks	cons appands to the end
14:23	gfredericks	appends*
14:23	bbloom	no, that's conj
14:23	gfredericks	conj calls PersistentVector#cons
14:23	gfredericks	just to be confusing
14:24	Sgeo	conj appends to the most efficient place to append, I think
14:24	gfredericks	which is determined by CollectionClass#cons
14:25	bbloom	well that's very confusing
14:25	bbloom	lol
14:25	bbloom	but you're right:
14:25	bbloom	,(.cons [1 2 3] 4)
14:25	clojurebot	[1 2 3 4]
14:25	bbloom	the definitions of cons and conj seem like copy paste....
14:25	bbloom	<look-of-disapproval/>
14:26	gfredericks	I know, let's make clojure.core/empty call .full!
14:27	bbloom	gfredericks: it's somewhat funny to me how beautiful clojure is, but how ugly the java that goes into it is
14:28	gfredericks	yeah
14:29	bbloom	one of the things clojure (and it's source!) has taught me is to ignore superficial beauty. the awkward shape of the average lisp function is ugly, but the beauty of the underlying approach sines through once you look past the parens :-)
14:29	bbloom	shines*
14:30	bbloom	dammit. i had things to do man. now you got me watching houser's talk about finger trees
14:30	gfredericks	haha
14:33	samrat	if I want to rename a lein project, is there an easier way than to rename each directory?
14:33	samrat	maybe a plugin or something?
14:44	xeqi	samrat: nothing I know of; and don't forget to change the namespaces in the files
14:45	yankov	bbloom: can you share a link to the houser's talk? :)
14:45	yankov	looks like finger trees is what i need. checking out the library
14:45	casion	anyone know of an easy way to cast a byte-array of arbitrary size to a long?
14:45	casion	#java seems to not know atm
14:45	bbloom	yankov: heh, funny you should ask…. https://github.com/clojure/data.finger-tree/pull/2
14:45	bbloom	i'm 12m ahead of you :-)
14:45	weavejester	casion: Which endian?
14:45	yankov	haha
14:46	casion	weavejester: both. I don't get to know until the function gets the array
14:46	casion	I do have a map with the byte-array and endianness that's being passed around
14:47	casion	I'm processing audio files, which can be 8/16/24/32(int or float)/64(int or float) bit, all signed or unsigned
14:47	casion	and can be either big or little
14:48	weavejester	casion: Oh, okay. So just a bitwise and then a bitshift left, right?
14:48	casion	weavejester: yes
14:48	weavejester	casion: You might have to write the function yourself, I think...
14:49	casion	issue so far is that I have do reverse the array depending on endianess, and bit-and for signed, but not for signed
14:49	casion	I thought maybe java had a better way :(
14:49	casion	and a loop that shifts based on index
14:51	weavejester	casion: You don't have to reverse the array - just bitshift the value instead of the output
14:52	weavejester	casion: Though since you'd have to maintain an index, reversing would probably be less code
14:53	Frozenlock	bbloom: stop posting interesting videos!
14:54	casion	weavejester: that was my thought too, but reversing every frame is quite slow when processing a 3gb file
14:54	bbloom	i know, videos are killer.
14:54	bbloom	and papers/pdfs
14:54	bbloom	easy way to lose a perfectly good side project day!
14:54	bbloom	sorry :-/
14:54	casion	treading the line between speed and complexity I guess
14:55	Frozenlock	Meh, at my stade learning more won't hurt :P
14:55	Frozenlock	I wonder why they film the slides instead of using the video output to the projector.
15:01	bbloom	Frozenlock: for the same reason that conference calls are always still awkward as hell
15:01	bbloom	ie. a grand mystery
15:07	black_joe	I am new to Lisp in general and would like to start learning Clojure (since I already know Java). Is there a book that the community supports for a clojure newbie?
15:08	technomancy	black_joe: I'm a fan of clojurebook.com
15:09	bbloom	black_joe: i also recommend following some of the top users on http://www.4clojure.com/
15:09	bbloom	(and of course doing the puzzles)
15:09	black_joe	Clojurebook is what I was considering too. It looks like the standard book for Clojure.
15:09	black_joe	Kind of like what "The C programming language" is to C.
15:13	nDuff	...opinions are split on whether JoC is good for beginners or not -- personally, I think it is, because IMHO it's more important to understand the "why" than the "how", but that may depend on how you learn.
15:13	black_joe	I think I will just get the O' Reilly book for now. The only reason I didn't just buy that at first was because it is O' Reilly.
15:13	Sgeo	Oh huh cemerick wrote Clojure Programming
15:13	nDuff	...the O'Reilly book does some why, and a whole lot of very good how, but JoC completely nails the why.
15:14	cemerick	Sgeo: I had some help, of course. :-)
15:23	casion	there's always programming clojure as well
15:27	clojure-newcomer	hi guys… how do I convert a string to a number type in clojurescript ?
15:28	gfredericks	you can use cljs.reader/read-string at least
15:28	gfredericks	js/parseDouble or something like that also?
15:29	clojure-newcomer	gfredericks: thanks, I'll look it up
15:29	Sgeo	gfredericks, parseDouble might be a bad idea if clojure-newcomer wants to do money stuff
15:30	Sgeo	So would read-string I would assume
15:30	gfredericks	Sgeo: well doubles are all clojurescript has at the moment
15:30	gfredericks	so should be equilavent
15:30	clojure-newcomer	sgeo: I just need something like "1234567" -> 1234567
15:30	Sgeo	So why not js/parseInt
15:31	clojure-newcomer	it is getting passed into clojure later on the server side where it needs to be a Long
15:31	gfredericks	read-string for forwards compatibility; maybe someday we'll have proper integers :)
15:31	Sgeo	cljs.user> (cljs.reader/read-string "123")
15:31	Sgeo	123
15:31	Sgeo	That works
15:32	clojure-newcomer	I'm going to have to dig up read-string… unfamiliar but looks good, thx guys
15:32	Sgeo	I think there should be a reader-level way to distinguish platform
15:33	Sgeo	Something similar to Common Lisp's #+ and #-
15:33	gfredericks	I think there was a design page for that
15:37	S11001001	Sgeo: on the other hand, the lack of reader conditionals has led to creativity in platform detection, e.g. ##(first [+' nil])
15:37	lazybot	⇒ #<core$_PLUS__SINGLEQUOTE_ clojure.core$_PLUS__SINGLEQUOTE_@115edb0>
15:37	Sgeo	...o.O huh?
15:37	gfredericks	presumably +' exists in jvm-clj but not cljs
15:38	S11001001	Sgeo: that's how you write 1.2/1.3-compatible safe +
15:38	S11001001	don't know about cljs; never looked at it
15:57	Frozenlock	Lighttable is supposed to be licenced under the GPL, but I can't find any source (either on ibdknox or kodowa repo). Is it because it has not been released yet?
16:51	technomancy	Frozenlock: it was originally distributed under the EPL, but I asked him about that and he said that was unintentional
16:53	Frozenlock	Oh that's a shame.
16:54	Frozenlock	I was basing my assumptions one "Nope! The plan is still for the platform to be open source, likely under a GPLish license." http://news.ycombinator.com/item?id=3992101
16:54	Frozenlock	*on
16:55	technomancy	I'm not sure what we should do about Clojars distributing jars that don't have a license declared; it's probably not completely legal
16:59	Frozenlock	(get jar :license "EPL") tada :)
17:00	xeqi	technomancy: register a dmca agent, and wait for takedowns?
17:01	rod	hi - i've been trying to use ring + compojure with clojure 1.4.0, but the params and session middleware wasn't working, so i changed back to 1.3.0 and it's fine. are there known issues with this? thanls
17:02	weavejester	rod: No… I'm using 1.4.0 right now and it works fine.
17:02	weavejester	rod: What version of Ring/Compojure?
17:02	rod	compojure 1.1.1
17:03	weavejester	rod: Could you provide an example project where it goes wrong?
17:03	rod	params and session just seemed to have no effect, so i toggled back to 1.3.0 in my project.clj and it's dandy again. odd...
17:04	weavejester	rod: I'm using the same version with 1.4.0 and params and sessions work okay for me.
17:04	Frozenlock	technomancy: what's the clojurers opinion on GPL?
17:05	rod	weavejester: here's my work in progress (don't judge me! :P) https://github.com/rodnaph/weare/tree/require-login
17:06	rod	just clone and lein run if ur gonna try it.
17:08	weavejester	Okay, I'm trying it out
17:11	technomancy	Frozenlock: I love it, but I don't know if it's compatible with the EPL. I'm happy that the community has taken strongly to a copyleft license with the EPL in any case.
17:12	weavejester	EPL isn't compatible with GPL, because GPL says "no more restrictions" and EPL says "you need to grant a license for any patents you have that cover the modifications you made"
17:13	weavejester	rod: I'm running it; no difference on 1.3.0 and 1.4.0, but neither seem to do a whole lot.
17:13	weavejester	Clicking "create job" just prints to the console
17:13	technomancy	it's ironic that the EPL's further protection of your freedom prevents GPL compatibility
17:14	technomancy	it bugs me that people don't consider patent protection in ruby-land; most people just slap the MIT-X11 license on it and don't think twice about it
17:14	rod	weavejester: yeah it's not a functional example sorry... i was trying to integrate friend, but when dumping the request when i was POSTing a login, there were no :query-params, :params, etc... in the req.
17:14	rod	weavejester: nm, it's probably my fault anyway, and it's working now so i'll just crack on.
17:15	weavejester	weavejester: Was friend above or below the handler/site middleware?
17:15	weavejester	I should have really called that wrap-defaults instead of site
17:19	rod	if it happens again i'll look into it more closely. thanks for your help weavejester. :)
17:19	weavejester	rod: no problem
17:53	dansalmo	, (seq (str (first '(xyz))))
17:53	clojurebot	(\x \y \z)
17:54	dansalmo	is their a simpler way to get a seq from a symbol?
17:54	dansalmo	, (seq (str (first '(xyz))))
17:54	clojurebot	(\x \y \z)
17:56	gfredericks	,(-> xyz quote str seq)
17:56	clojurebot	(\x \y \z)
17:56	gfredericks	if that's what you want, that's probably the easiest way to get it. but it's a weird thing to want
17:58	dansalmo	It seems I always want weird things. :)
17:58	gfredericks	if mine was hard to understand, equivalent is ##(seq (str 'xyz))
17:58	lazybot	⇒ (\x \y \z)
17:59	dansalmo	but the thread is the same thing, isn't it?
17:59	gfredericks	basically the same thing you did but there's no reason to put the symbol in a list and pull it back out
17:59	dansalmo	ah, thats better
18:00	dansalmo	I am trying to find a way of determining if a certain character is in a symbol
18:00	gfredericks	why do you have symbols? wouldn't strings be more natural?
18:00	dansalmo	like y in symbol xyz
18:00	gfredericks	,(.indexOf "xyz" "y")
18:00	clojurebot	1
18:01	dansalmo	I have the symbol directly
18:02	oich	How can I run swank-clojure with leinigen 2? There is no "lein swank". I'm an emacs user new to clojure. I'm trying to setup clojure-mode.
18:06	dansalmo	:gfredericks (.indexOf (-> xyx quote str) "y")
18:06	dansalmo	, (.indexOf (-> xyx quote str) "y")
18:06	clojurebot	1
18:06	gfredericks	yep
18:06	gfredericks	,(-> xyx quote str (.indexOf "y"))
18:06	clojurebot	1
18:06	technomancy	oich: you can put it in your user profile, or you could use nrepl.el
18:06	dansalmo	is there no purely clojure way that would give true or false?
18:07	gfredericks	$findfn "xyx" "y" 1
18:07	lazybot	[]
18:07	gfredericks	,(-> xyx quote str (.indexOf "y") neg? not)
18:07	clojurebot	true
18:07	gfredericks	$findfn "xyx" "y" true
18:07	lazybot	[clojure.core/not= clojure.core/distinct?]
18:08	tomoj	&(.contains (name 'xyz) "y")
18:08	lazybot	⇒ true
18:09	dansalmo	:tomoj I like that, thakns\
18:10	gfredericks	,(map (juxt name str) 'foo 'bar/baz)
18:10	clojurebot	#<ExecutionException java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: Don't know how to create ISeq from: clojure.lang.Symbol>
18:10	gfredericks	,(map (juxt name str) '[foo bar/baz])
18:10	clojurebot	(["foo" "foo"] ["baz" "bar/baz"])
18:11	gfredericks	dansalmo: since we have no idea why you're using symbols you should note the difference between str and name
18:12	dansalmo	I am so new to clojure, just hacking around
18:13	gfredericks	that justifies just about anything
18:13	dansalmo	I need a boolean value for the presence of a character in a symbol
18:14	gfredericks	,((fn [sym char] (.contains (str sym) (str char))) 'foobledooble \d)
18:14	clojurebot	true
18:16	hyPiRion	,(some #{\d} (str 'foobledooble))
18:16	clojurebot	\d
18:17	S11001001	oich: https://groups.google.com/d/msg/clojure/xzvI_kCaeNI/zvCA1Nfaad4J
18:17	S11001001	oich: oh I see technomancy already said something
18:19	dansalmo	:gfredericks I see what you mean re: name vs string.
18:19	dansalmo	, (name :xyz)
18:19	clojurebot	"xyz"
18:19	dansalmo	, (str :xyz)
18:19	clojurebot	":xyz"
18:19	dansalmo	I need string
18:19	gfredericks	dansalmo: I was going on about your use of symbols because they're generally only used for actual code; for data, strings and keywords are more idiomatic
18:20	dansalmo	I am using if for code
18:20	oich	technomancy thanks and thanks S11001001. So far things appear to be working.
18:41	samaaron	hey - anyone in here mess around with jayq and clojurescript much?
18:46	gfredericks	samaaron: I'm doing it right now
18:47	gfredericks	though the use of jayq is rather minimal
18:47	samaaron	gfredericks: i'm trying to understand how all this stuff fits together
18:48	samaaron	so, for example, if I include jayq in my project.clj, how does cljs interact with it?
18:48	gfredericks	well the jayq code gets put on the classpath
18:48	gfredericks	so you can require the cljs files therein
18:49	samaaron	gfredericks: yup, i'm with that part
18:49	samaaron	so all the cljs fns are available
18:49	gfredericks	sure
18:49	samaaron	but what of the resources?
18:49	gfredericks	the resources in jayq?
18:49	samaaron	jayq seems to ship with jquery.js
18:50	gfredericks	oh I was supplying my own
18:50	samaaron	ok, that makes some sense
18:50	gfredericks	in fact it might be the case that my usage of jayq could be replaced with js/$
18:51	samaaron	hmmm, so this is where i start to lose the plot :-)
18:51	gfredericks	(js/$ foo bar) should emit $(foo bar)
18:51	samaaron	but jayq has ($ :foo)
18:51	gfredericks	but I don't know if that usage is recommended or guaranteed to be supported
18:51	gfredericks	what does that doo?
18:52	samaaron	to be honest, i don't know :-)
18:52	gfredericks	lets you use keywords instead of strings?
18:52	samaaron	i've just seen it being used
18:52	gfredericks	I oughta try it
18:52	samaaron	i'm still yet to get a working app set up to play about
18:53	gfredericks	any concrete blockers?
18:53	samaaron	well, i still don't know what to do about jquery.js
18:53	gfredericks	do you get browser errors about $ not being defined?
18:53	samaaron	is supplying your own idiomatic?
18:54	gfredericks	I don't know how much idiomacy there is in cljs so far
18:54	samaaron	hahaha
18:54	gfredericks	if you want to use the one in the jayq jar you'll probably just have to figure out the appropriate way to wire it down to your browser
18:55	samaaron	i'm just wondering why there's a jquery.js in the jayq jar at all...
18:55	gfredericks	just in case?
18:55	gfredericks	could be an accident even
18:55	samaaron	the jayq docs don't say anything about jquery.js
18:56	gfredericks	I think you are looking too hard for the answer to the ultimate question of life, the universe, and everything
18:56	samaaron	haha
18:56	samaaron	i just like to understand things
18:56	gfredericks	the clojurescript ecosystem is a giant vacuum of explanations
18:56	samaaron	oh hey, i just found this line: (include-js "https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js")]
18:57	samaaron	in the defpartial in the overtone clojurescript example
18:57	samaaron	looks like he doesn't use the bundled jquery.js
18:58	Frozenlock	samaaron: do you have any particular function that you need in jquery? Otherwise you could try enfocus and domina
18:58	samaaron	Frozenlock: to be honest, I know no javascript
18:59	Frozenlock	samaaron: welcome to my world, a week ago!
18:59	samaaron	and thought that somethign jquery based would be good from a tutorial perspective
19:02	Frozenlock	You might have to do direct js call often, but yeah :P
19:02	samaaron	Frozenlock: what kind of thing(s) are you doing with cljs and which tools are you using?
19:04	Frozenlock	Mostly Domina and Enfocus to play with the DOM. Everything else is pretty much clojure.
19:05	Frozenlock	https://github.com/Frozenlock/siren For notifications on a webpage
19:05	Frozenlock	https://github.com/Frozenlock/zyzanie because I'm an emacs junkie :P
19:06	samaaron	Frozenlock: so are you using enfocus?
19:06	Frozenlock	Indeed
19:06	samaaron	and how are you finding it?
19:08	Frozenlock	I must say I prefer Domina most of the time. But Enfocus provide some higher function that are really neat. (Chaining animation, for example)
19:08	Frozenlock	But I'm not using the Enlive-style templates, so I might be missing most of what Enfocus can give.
19:08	samaaron	ah ok
19:09	samaaron	i'll play with domina for a bit :-)
19:17	Frozenlock	Anyone else working with cljs have suggestions?
19:18	samaaron	Frozenlock: so i'm having issues with domina. I've referenced the jar in project.clj, :required the ns and then compiling throws up a whole heap of "Use of undeclared Var domina/*" erors.
19:21	Frozenlock	Yes, there's a pull request for that. It should work anyway.
19:21	samaaron	Frozenlock: hmm, seems I had a bug, and errors were unrelated
19:22	Frozenlock	No there is some undeclared variable errors
19:22	samaaron	yey, i've successfully appended something to my dom via cljs
19:22	Frozenlock	\o/
19:22	Frozenlock	,hurray
19:22	clojurebot	#<CompilerException java.lang.RuntimeException: Unable to resolve symbol: hurray in this context, compiling:(NO_SOURCE_PATH:0)>
19:23	Frozenlock	aw....
19:23	samaaron	haha
19:43	gfredericks	~hurray
19:43	clojurebot	No entiendo
19:43	gfredericks	clojurebot: hurray is <reply> \o/
19:43	clojurebot	Ik begrijp
19:43	gfredericks	~hurray
19:43	clojurebot	\o/
19:44	gfredericks	that bot just got 50% more useful
19:50	Frozenlo`	I'm a fan
19:50	Frozenlo`	,hurray
19:50	clojurebot	#<CompilerException java.lang.RuntimeException: Unable to resolve symbol: hurray in this context, compiling:(NO_SOURCE_PATH:0)>
19:50	Frozenlo`	~hurray
19:50	clojurebot	\o/
19:50	Frozenlo`	clojurebot doesn't like commas?
19:50	gfredericks	commas are for eval
19:51	gfredericks	(eval 'hurray) doesn't do anything meaningful
19:51	gfredericks	because hurray is not defined
19:51	Frozenlock	Oh I see, ',' for serious stuff, '~' for fun.
19:52	gfredericks	that is precisely the case
19:52	Raynes	&hurray
19:52	lazybot	java.lang.RuntimeException: Unable to resolve symbol: hurray in this context
19:52	gfredericks	Raynes: wat? lazybot hates ampersands?
19:52	Raynes	&(let [gfred 1] (+ gfred gfred))
19:52	lazybot	⇒ 2
19:53	gfredericks	which keyboard character is the most uselessest for the average person? the tilde?
19:53	Raynes	¿
19:53	gfredericks	that is not on my keyboard
19:53	Raynes	Isn't on mine either.
19:53	gfredericks	oh; perhaps you were saying something unrelated then
19:59	Frozenlock	right ctrl and escape
19:59	Frozenlock	Oh no: the pause key
20:00	gfredericks	the F keys take up an awful lot of space
20:04	amalloy	gfredericks: scroll lock
20:04	gfredericks	I was interested in actual character things but these are good answers too
20:04	gfredericks	on my work computer I have scroll-lock set to change keyboard layouts
20:05	gfredericks	delete is used 70000% more than the other five keys in its group
20:06	amalloy	i think i use home/end more
20:06	gfredericks	bet we're talking about the hoi polloi
20:07	brehaut	i've just noticed that my keyboard as an eject key in that group. what kind of weirdo anachronism is that
20:08	nDuff	Did Apple stop having eject keys standard?
20:08	amalloy	brehaut: i'd guess it's a newism, not an oldism
20:08	clojurebot	brehaut: I think struct embedding is monkey patching / mixins, and interface embedding is duck typing / typeclasses
20:09	brehaut	amalloy: its probably an inbetweenish
20:11	brehaut	nDuff: yes
20:11	brehaut	nDuff: it looks like what was the eject key on the older MBPs is now a power key
20:11	brehaut	on the retina MBP anyway
20:17	casion	how do I get clojure to recognize a 2 byte value (say 0xd9) as a signed short (-39) rather than an int (217)
20:17	brehaut	(doc short)
20:17	clojurebot	"([x]); Coerce to short"
20:18	casion	,(short 0xd9
20:18	clojurebot	#<ExecutionException java.util.concurrent.ExecutionException: java.lang.RuntimeException: EOF while reading>
20:18	casion	,(short 0xd9)
20:18	clojurebot	217
20:18	casion	nope :\|
20:18	gfredericks	,(.toString (short 0xd9))
20:18	clojurebot	"217"
20:19	gfredericks	,(.toString ^short (short 0xd9))
20:19	clojurebot	#<CompilerException java.lang.IllegalArgumentException: Unable to resolve classname: short, compiling:(NO_SOURCE_PATH:0)>
20:19	gfredericks	,(.toString ^Short (short 0xd9))
20:19	clojurebot	"217"
20:19	casion	short is 4 bytes I guess
20:19	casion	seems I want to cast to byte
20:19	casion	,(byte 0xd9)
20:19	clojurebot	#<IllegalArgumentException java.lang.IllegalArgumentException: Value out of range for byte: 217>
20:20	casion	but that happens
20:20	gfredericks	short is two bytes I think
20:20	brehaut	well no
20:20	casion	I thought short was 2 bytes too, but I just looked it up and it's 4 16-bit)
20:20	brehaut	0xd9 isnt a byte pattern, its a hex description of a number right?
20:20	gfredericks	16-bit is 2 bytes
20:20	gfredericks	brehaut: right
20:20	casion	gfredericks: err.. yeah
20:20	casion	this is all hurting my brain now
20:20	gfredericks	,(Byte/valueOf "d9" 16)
20:20	clojurebot	#<NumberFormatException java.lang.NumberFormatException: Value out of range. Value:"d9" Radix:16>
20:21	brehaut	casion: and you want it to read as a particular byte format?
20:21	casion	I just want the byte-value of it reliably
20:21	gfredericks	why is 0xd9 insufficent for your purposes?
20:21	gfredericks	what are you doing with tthe "byte-value"?
20:22	casion	here, give me a sec, I'll get an example
20:23	amalloy	&(unchecked-byte 0xd9)
20:23	lazybot	⇒ -39
20:24	casion	oooo, that does it
20:24	gfredericks	man I was even going to make a joke 3 minutes ago about waiting for amalloy to come by and tell us the real answer
20:24	gfredericks	what a fool I was
20:25	casion	thanks again amalloy :)
20:34	Frozenlock	Can a function name mess with clojurescript?
20:35	gfredericks	O_O?
20:36	Frozenlock	Nvm, I must be doing something wrong...
20:38	weavejester	Has anyone tried lein-sub with lein2?
20:40	weavejester	Ah, nevermind, I was using an outdated version
21:34	clj_newb_23894	has anyone here got a example of red5 + clojure working?
21:34	clj_newb_23894	it seems like both clojure and red5 wants to "own the JVM"
21:34	clj_newb_23894	and I haven't found a single tutorial on how to import red5 as a leiningen dependency
21:36	akhudek	clj_newb_23894: you need to find a maven repository to import with lein
21:36	clj_newb_23894	I don't think any of them has red5
21:36	akhudek	http://code.google.com/p/red5-maven-repository/ ?
21:37	clj_newb_23894	doh; thanks;
21:38	clj_newb_23894	though I am suspicious of people who say "u" rather than "you"
21:38	akhudek	you'll also need to add the repository to your project.clj
21:38	SegFaultAX	Suppose I have a tree like this: {27 [9], 9 [3], 8 [4], 4 [2]} where 27->9, 9->3 and so on. Now lets say I want to collect all of the children and subchildren of some node. Eg, (children 27) => (9 3) because 27->9 and 27->9->3
21:38	SegFaultAX	What's the best way to do that?
21:38	akhudek	clj_newb_23894: hah, the "u" thing also drives me crazy
21:39	akhudek	SegFaultAX: if it's not very deep just use recursion
21:39	amalloy	yeah, recursion and mapcat
21:39	SegFaultAX	akhudek: Go on.
21:42	SegFaultAX	I'm having trouble working it out in Clojure.
21:42	akhudek	SegFaultAX: I guess something like https://www.refheap.com/paste/4816
21:43	amalloy	&((fn children [m key depth] (when-not (zero? depth) (concat (m key) (mapcat #(children m % (dec depth)) (m key))))) {27 [9], 9 [3], 8 [4], 4 [2]} 27 2)
21:43	lazybot	⇒ (9 3)
21:44	SegFaultAX	amalloy: Why do you track the depth?
21:45	amalloy	because otherwise i'll get the wrong answer
21:45	amalloy	how's that for an unhelpful answer! poke around the code and see
21:45	SegFaultAX	amalloy: But the depth in this case is not fixed.
21:45	SegFaultAX	amalloy: And not known ahead of itme.
21:45	SegFaultAX	Time, even.
21:46	amalloy	oh. your question was not very clear
21:46	amalloy	you said specifically children and subchildren
21:46	SegFaultAX	amalloy: All subchildren, recursively.
21:52	akhudek	SegFaultAX: You want this https://www.refheap.com/paste/4818
21:52	akhudek	but need to have it exclude the first node
21:52	akhudek	as that includes the argument
21:54	akhudek	can just do (rest (children {27 [9], 9 [3], 8 [4], 4 [2]} 27))
21:54	akhudek	Since the initial argument will always be the last thing added
21:54	SegFaultAX	akhudek: Thanks, I'll try it out.
21:54	Frozenlock	Any js savvy can tell me why this doesn't work? (.fromCharCode 65)
22:02	Frozenlock	Oh, got it! (String.fromCharCode 97,108,101,114,116) works :D
22:03	jkkramer	what's the mime type for clojure data? "application/clojure"?
22:05	xeqi	jkkramer: thats what most people have been using
22:06	jkkramer	xeqi: k. doesn't quite seem correct but I'll go with the crowd
22:08	dnolen	Frozenlock: (.fromCharCode js/String ...) probably a bit more idiomatic.
22:14	Frozenlock	dnolen: Thanks!
22:36	jkkramer	clojuresphere updated -- http://www.clojuresphere.com/ - refreshed index, added some features
22:44	cemerick	jkkramer: awesome! :-)
22:44	dnolen	jkkramer: curious that ClojureScript doesn't show up as a Clojure project
22:45	jkkramer	dnolen: it's in there - http://www.clojuresphere.com/org.clojure/clojurescript
22:47	SegFaultAX	amalloy: Is there an API for 4clojure? It'd be cool if I could grab all my solutions.
22:48	amalloy	one or two things are exposed with an API, but not that
22:48	SegFaultAX	amalloy: Would it be possible to get a dump?
22:49	wmealing_	cemerick: your post on maven repo on github ( http://cemerick.com/2010/08/24/hosting-maven-repos-on-github/ ) do you know if anyone has turned that into a lein task yet ?
22:49	amalloy	SegFaultAX: yeah, probably. step into #4clojure
22:51	cemerick	wmealing_: Don't do that. Use s3 instead. I need to put a warning prefix on that post. https://github.com/technomancy/s3-wagon-private
22:52	wmealing_	damn it looked so promising too
22:52	wmealing_	hmm
22:52	cemerick	It offers no advantages over s3.
22:53	wmealing_	except that i'm likely to forget
22:53	wmealing_	and push my s3 details into github
22:54	wmealing_	ah no
22:54	wmealing_	its in a different file
22:56	cemerick	wmealing_: yes, credentials should never ever seriously ever go in project.clj.
22:57	dnolen	jkkramer: that's not the official clojurescript project
22:59	jkkramer	dnolen: ah you're right. clojuresphere has some issues with forked projects, since github doesn't include them in its API responses
23:00	wmealing_	s3 is so dirt cheap, i'll use it, thanks cemerick.
23:03	jkkramer	dnolen: looks like clojurescript also uses pom.template.xml, which doesn't get picked up. might have to write a special case for it
23:09	dnolen	jkkramer: awesome resource btw!
23:10	dnolen	jkkramer: a great way to discover which projects are using which libraries.
23:10	jkkramer	dnolen: yeah, a nice resource for lib authors too
23:35	technomancy	jkkramer: nice work. did those github search results end up giving you what you needed?
23:35	technomancy	nice to see the project count graph isn't dropping off anymore
23:36	technomancy	I wonder if it'd be interesting to have a delta page per refresh
23:36	jkkramer	technomancy: thanks, and thanks for your help getting the ball rolling on the updates. Github api results are ok, not perfect
23:36	technomancy	"compojure jumped 3 positions while swank dropped 2..."
23:36	jkkramer	the biggest problem with the github api is that searches don't include forks
23:37	technomancy	oh, so you have to determine the fork root yourself? =\
23:37	jkkramer	also, because a search term is required, you don't necessarily get all results, just ones that mention "clojure" somewhere
23:37	technomancy	ah, shame
23:37	technomancy	jkkramer: oh. dude. idea. have a clojuresphere bot that opens issues on projects that don't have a :url and :description in the resulting pom that gets published to clojars
23:38	jkkramer	technomancy: heh, nice.
23:38	jkkramer	technomancy: pull requests welcome
23:38	technomancy	I'll open an issue for it if you think it's a good idea
23:38	jkkramer	technomancy: sure
23:39	technomancy	maybe it could be done as a separate codebase that shares the same DB once we've got it running on neo4j
23:39	jkkramer	technomancy: yeah you'll notice I made no effort to move the db. I did however change the graph format. it no longer groups projects by artifact id. that was just a bad idea
23:40	technomancy	sure
23:40	jkkramer	I think it lends itself to an alternate db format better now
23:40	amalloy	technomancy: a bot that opens issues sounds pretty unpleasant; i'd block such a bot just for being rude. but if it sent a pull request instead...
23:40	technomancy	good to hear =)
23:41	technomancy	amalloy: can't do that for :url and :description; there's no heuristic to reliably determine it
23:42	jkkramer	well, there is the clojars & github url & description
23:42	amalloy	technomancy: don't you have the github page? that's a uri
23:42	technomancy	true. I wonder how common the github description is.
23:42	jkkramer	pretty common
23:43	technomancy	I guess a pull request would be better then
23:43	amalloy	seriously though if you start a bot to nag me about putting metadata in my project.clj i'll ask if github can close his account
23:43	technomancy	amalloy: there's precedent
23:44	technomancy	I got a pull request from a gun.io bot removing a bunch of trailing whitespace
23:44	amalloy	right, that's a pull request
23:44	amalloy	help is useful, issues are just nagging
23:44	technomancy	gotcha
23:48	tomoj	wow automated trailing whitespace pull requests..?
23:48	tomoj	that seems more annoying than a real issue
23:49	amalloy	tomoj: git's default behavior is to warn you when introducing trailing whitespace, so it doesn't seem crazy to me
23:51	tomoj	I was trying to figure out how to get those warnings recently
23:51	tomoj	seems they are default only when applying a patch?
23:53	tomoj	but anyway, isn't the reason they warn you to help keep the history from getting mucked up with whitespace changes?
23:53	jkkramer	according to the clojuresphere data, there are only 23 projects with a github description and no clojars description
23:54	technomancy	huh; how about urls?
23:54	jkkramer	also, 4 projects with github homepage set, but no clojars homepage set