#clojure – 2012-01-10

2012-01-10

01:59	adiabatic	If I'm trying to figure out how to make (require 'clojure.string) work inside of a fn, does that mean I'm getting way off track on http://www.4clojure.com/problem/29 (filter all non-capital-letters out of a string)?
02:04	tufflax	adiabatic i don't know if that's possible, but probably the easiest way to do it is something with regular expressions
02:04	tufflax	...maybe :p
02:05	adiabatic	I got an idea to do something with reduce that isn't + or *. Now I need to get the "is capital letter" bit working again…
02:07	tufflax	adiabatic take a look at this, should work pretty well http://clojuredocs.org/clojure_core/clojure.core/re-seq
02:10	tufflax	adiabatic at least that's what I would use. Some re-thing could be made to do the "is capital letter" fn
02:17	tufflax	adiabatic is it working out? :p
02:17	adiabatic	All the other things that I thought would be simpler aren't. Trying it now…
02:17	tufflax	hehe
02:21	adiabatic	(fn caps [s] (reduce str (re-seq #"[A-Z]" s))) ; jwz was wrong this time,
02:21	adiabatic	s/,//
02:22	Raynes	&(.isUpperCase \A)
02:22	lazybot	java.lang.IllegalArgumentException: No matching field found: isUpperCase for class java.lang.Character
02:22	adiabatic	Turns out the overwhelming majority of the useful methods for java.lang.Character are static
02:22	adiabatic	and I never figured out how to call them
02:22	Raynes	&(Character/isUpperCase \A)
02:22	lazybot	⇒ true
02:22	tufflax	I'd to it like this #(apply str (re-seq #"[A-Z]" %))
02:23	Raynes	Hahaha.
02:23	Raynes	So you resorted to regex over figuring out how to call static methods?
02:24	tufflax	I kind of suggested that he should, I just looked at the String class and didn't find anything useful :P
02:24	Raynes	:)
02:25	adiabatic	if tufflax's hint hadn't been staring me in the face I probably would have
02:28	tufflax	Raynes maybe you could answer this too: can/should one use require etc inside fns and such? I can't imagine where one'd want to...
02:29	Raynes	No. There is generally never a good reason to do that.
02:29	Raynes	Only under very special circumstances.
02:29	amalloy	tufflax: it's like jumping off a cliff. you generally shouldn't do it, but if you're in a big hurry to get to the bottom...
02:29	tufflax	hehe
02:29	Raynes	Smooth.
02:38	adiabatic	There isn't a relative of concat that adds just one item to the 'end' of a seq, is there?
02:40	nickmbailey	conj?
02:40	clojurebot	(conj {:a 1} (when true {:b 2}))
02:41	G0SUB	adiabatic: `end` of a seq? that's an O(n) operation. you might just use concat for that.
02:42	amalloy	adiabatic: re your earlier adventures with scoping: in (let [x 1] (loop [x x] ...)), the [x x] only contains one symbol that's evaluated
02:42	amalloy	the first x creates a new local named x, entirely unrelated to the x in the outer scope; the second x causes this new local's initial value to be the value of x in the outer scope (since its initializer is, necessarily, evaluated before the new x enters scope)
02:42	adiabatic	amalloy: I figured that's how it worked because my function wouldn't have worked otherwise
02:44	adiabatic	G0SUB: well, since it is O(n), having it be clunky and ugly is probably the better option…but (concat coll [x]) still seems silly
02:44	amalloy	adiabatic: if it's a vector, conj is what you want
02:45	adiabatic	I'm doing http://www.4clojure.com/problem/30. vector…icity isn't guaranteed.
02:45	amalloy	for a general collection, adding to the end is generally not very nice, so i sorta support it being inconvenient
02:45	amalloy	&(let [coll '(1 2 3)] `(~@coll 4)) ;; this is another option
02:45	lazybot	⇒ (1 2 3 4)
02:46	G0SUB	heh
02:46	amalloy	one of the neatest things i learned from 4clojure is some creative ways to abuse ` outside of macros
03:29	Blkt	good morning everyone
03:29	jowag	good morning
03:29	kedoodek	good morning!
03:29	kedoodek	though in what time zone?
03:29	kedoodek	it's jus past midnight here in cali
03:29	Blkt	:D
03:29	jowag	I'm in CET
03:36	frankvilhelmsen_	good morning (UTC time)
03:39	kral	morning
03:53	amalloy	kedoodek: it's morning in UGT
03:53	amalloy	$google universal greeting time irc
03:53	lazybot	[UGT] http://thinkmoult.com/ugt.html
03:55	Fossi	that's a nice concept :)
04:10	kedoodek	haha
04:15	kral	sorry, never thought about different timezones :)
04:15	Fossi	kral: that wasn't directed at you :)
04:15	Fossi	your greeting was pretty ugt conform ;)
06:59	casperc	I am having a bit of a problem getting gen-class to work
07:00	casperc	when I run the following (ns some.Example (:gen-class)) and then (some.Example.) I get a CompilerException java.lang.RuntimeException: java.lang.ClassNotFoundException: some.Example
07:01	casperc	any tips on why this is not working? This is a direct copy from some tutorial site, so I have no idea why this is messing up
07:09	raek	casperc: evaluating the ns form is not enough (see the docs for 'gen-class'). you also need to perform ahead of time compilation of the namespace
07:09	raek	for example via lein compile
07:10	raek	(lein help compile)
10:39	dak__	hi@all
10:39	dak__	have smb used clojuratica with clojure 1.3 with Wolfram Math 8?
10:40	dak__	it's serious
10:41	dak__	joly, have you used WM8 + clojure1.3 + clojuratica ?
10:42	Vinzent	dak__, it'd be better if you ask the actual question
10:43	joly	I have used clojure 1.3; no idea on the other two
10:44	dak__	Vinzent, ok, i think problem with ^:dynamic for varibales that defined in clojuratica
10:45	dak__	i'm new in clojure after common lisp, so it's have a lot of java-specific things
10:46	Vinzent	dak__, https://github.com/gasc/Clojuratica - looks like it wasn't updated for 2 years
10:46	noidi	hmm.. I just noticed that my keywords are no longer highlighted in clojure-mode
10:46	noidi	has this changed at some point, or is my emacs broken :)
10:47	noidi	ah, the issue might be in the color theme as well, gotta check that next
10:48	noidi	yup, that's it
10:54	dak__	Vinzent, yes, it's true, but it's too small proj - simply bindings for java api of wolf mathematica... in some moments i will try clojure 1.2
10:55	Vinzent	dak__, you can fork it and make 1.3-compatible. That would be cool :)
10:58	pandeiro	Is there a way to create a new type that encompasses a previously defined type and changes one or two method definitions?
10:58	dak__	yep,
10:58	dak__	pandeiro, "yes" for Vinzent )
10:59	pandeiro	dak__: i figured :)
10:59	pandeiro	...but i hope you're right :)
10:59	TimMc	pandeiro: Do you mean subclassing concrete classes or overriding multimethods for a subtype?
11:01	dak__	oh, cljouratica still works with clojure-1.2 and WM8
11:02	TimMc	You could probably make it compatible with both.
11:04	pandeiro	TimMc: I'm not sure... sorry I am still learning about interfaces and protocols... it is a deftype statement from a different piece of code, and I want to implement something very similar but with one method defined differently - just wondering if I need to copy all that code, or if I can use some kind of inheritance
11:05	pandeiro	(I am unclear if a deftype statement creates a "concrete class"... it does, right?)
11:05	TimMc	It does
11:05	pandeiro	So I want to subclass a concrete class, ahem
11:05	TimMc	Clojure really tries to get away from subclassing concrete classes, but you gotta do what ya gotta do.
11:06	pandeiro	I see... would reify help me here at all?
11:06	TimMc	I'm not sure. reify, proxy, deftype... something in there.
11:08	pandeiro	ok I guess I will just repl away at it
11:10	AWizzArd	pandeiro: you can use proxy, which should work for most cases.
11:10	AWizzArd	But there are limitations for protected methods.
11:12	raek	pandeiro: extend takes the methods as a map from keywords to functions. you can store the "base map" somewhere and then do (extend FooType SomeProto base-map) (extend BarType SomeProto (assoc base-map :method1 (fn ...) :method2 (fn ...)))
11:14	raek	pandeiro: clojure does not endorse subclassing concrete classes, but there is probably another way of solving the problem.
11:15	pandeiro	raek: thanks yes i'm seeing that i am swimming against the current with this... i am going to look at solving this at the protocol level instead
11:15	pandeiro	AWizzArd: thanks for the tip re: proxy, too
11:15	tscheibl	damn... clojureql, korma, carte or clj-record? ...that's the question...
11:16	raek	pandeiro: can you tell us about the situation where you need to define a new type that changes a method?
11:16	Vinzent	tscheibl, what's the carte>
11:16	Vinzent	*?
11:16	clojurebot	#<ClassCastException java.lang.ClassCastException: clojure.lang.Cons cannot be cast to clojure.lang.IPersistentStack>
11:16	tscheibl	https://github.com/brentonashworth/carte
11:17	raek	(e.g. if it is like in InputStream where you have a lot of convenience methods that all call one abstract method that the subclasses is supposed to implement)
11:17	tscheibl	Vinzent: a database dsl like korma or clj-record...
11:17	pandeiro	raek: yes I am actually trying to implement something mentioned here: https://gist.github.com/1485920
11:18	raek	pandeiro: a rule of thumb: only put the functions that actually are polymorphic in the protocol. the other ones can be implemented as ordinary functions that call the protocol methods.
11:18	raek	no need to put them in" the protocol
11:18	Vinzent	tscheibl, never heard of it, thanks. But I'd choose between clojureql and korma, according to what you need
11:19	pandeiro	raek: in the linked example, a couchdb "view" represents an object very similar to a couchdb, except the seq would be built from a different uri
11:19	tscheibl	Vinzent: what about clj-record? It's activiely developed...
11:19	pandeiro	so what i was hoping to do was just 'inherit' all of CouchDB's implementation, and overwrite seq
11:21	tscheibl	Vinzent: ok :) that's clj-records problem: For the time being, the primary key column of the table must be named ‘id’.
11:21	raek	pandeiro: is the implementation of seqable the only difference?
11:21	tscheibl	don't like that kind of restrictions
11:22	Vinzent	tscheibl, I haven't use it, but I thought it's part of some web framework... Cascade, if I recall correctly
11:22	tscheibl	COnjure
11:22	Vinzent	ah, right!
11:23	pandeiro	raek: yes
11:24	tscheibl	Vinzent: hmm I'll propably go for Lobos (DDL) and Korma next time .. if only Korma would support recursive queries :(
11:24	raek	pandeiro: then you probably want to use extend + a map (chech the extend docs)
11:25	pandeiro	raek: ok, yeah i was looking at it but i couldn't understand if it created a new type or not
11:25	raek	pandeiro: proxy is not really a solution here since it works with Java concepts (interfaces and classes) and not Clojure ones (protocols and types)
11:25	Vinzent	tscheibl, but korma generates db scheme itself, no?
11:25	tscheibl	Vinzent: don't think so
11:25	pandeiro	Vinzent: nope
11:26	raek	pandeiro: no, it doesn't. remember that types, protocols, and implementations of protocols can be specified completely separately
11:26	pandeiro	I think ibdknox is working on adding that to it eventually though, i asked him a while back
11:26	tscheibl	Vinzent: Lobos looks quite interesting for that purpose
11:26	tscheibl	it supports quite some DBs
11:26	raek	(deftype Foo [x y z] Proto ...) is an optimized shortcut for (deftype Foo [x y z]) (extend Foo Proto ...)
11:27	tscheibl	pandeiro: If' he did that I would be his biggest fan :)
11:28	raek	(deftype has some additional feature too, though. for example x, y, and z will be bound in the method bodies)
11:28	tscheibl	pandeiro: I've adapted clojureql for that purpose in the meantime using modified code from bendlas
11:28	pandeiro	raek: gotcha... gonna take me a while to wrap my head around this and figure out what i am really trying to do... but much thanks for the explanations
11:29	Vinzent	pandeiro, then maybe I've heard that there is plans to implement it and because of it thiught that it's implemented already :)
11:29	Vinzent	tscheibl, yeah lobos is cool
11:29	pandeiro	tscheibl: yeah I was very close to using clj-record or korma for my current project, but decided to stick with Couch
11:32	tscheibl	pandeiro: apache couchdb or the commercial couchbase branch?
11:34	pandeiro	tscheibl: apache
11:35	tscheibl	I was really excited by starting off my current project using OrientDB in Graph mode.. but couldn't cope with fixing the many bugs it contained after weeks of struggling with it...
11:35	tscheibl	although I really like the graph abstraction
11:36	pandeiro	tscheibl: not sure if you like couchdb or not but I think the abstractions cemerick came up with here are very cool: https://gist.github.com/1485920
11:36	pandeiro	admit i know nothing about graph databases... have about 7 other rabbitholes i need to fall down first
11:36	tscheibl	pandeiro: some 2 years ago I've used CouchDB in a project and really liked it but haven't used it since...
11:37	tscheibl	I'll take a look at cemericks stuff :)
12:01	johncourtland	hi everyone, i'm working on a macro that constructs a defprotocol/deftype pair, and i'm having a pretty hard time figuring out how to put type annotations on the deftype methods.
13:02	pandeiro	cemerick: https://gist.github.com/1565537 - very feeble attempt to add views to your CouchDB type, curious your opinion of the semantics
13:05	cemerick	back in a sec
13:07	cemerick	Sorry, colloquy was flipping out.
13:08	cemerick	pandeiro: why add-view?
13:08	pandeiro	cemerick: sugar?
13:08	pandeiro	i really wasn't sure how to try to implement it
13:08	cemerick	that is, why not (get-view db design-doc view-name opts)?
13:08	cemerick	It all ends up calling through to clutch's get-view anyway
13:09	pandeiro	right, so i guess i wanted to ask you how you planned to include views since that was your first bulletpoint
13:09	cemerick	Or, are you trying to set up a db value that has all of the view config stuff set up once?
13:10	pandeiro	cemerick: tbh i'm not really sure what i was going for... i liked the CouchDB type abstraction but I wanted to be able to iterate over different views easily
13:10	pandeiro	i guess the CouchView protocol doesn't really save much work though in that regard, as opposed to (get-view ...)
13:11	cemerick	Looking at your usage, it seems you'd want to be able to define the different views you're going to be using, perhaps each with different query defaults, etc.
13:11	cemerick	Then be able to say (view db :name-of-your-configured-view {:additional :opts})
13:11	pandeiro	yeah, that is the basic use case... some descending, some limit, etc
13:12	cemerick	Some more Clojuresque view introspection and such would be nice, too.
13:12	pandeiro	right, that's what i wanted to get your opinion on
13:12	pandeiro	what would be the way to think about views
13:12	cemerick	(list-views db) and (list-views db "_design/foo") could list all and just one ddoc's views, etc.
13:13	zakwilson	I have an app that uses swank and is AOT-compiled as a jar. It starts swank on startup. Sometimes, a while after loading new code through swank, I'll get random NoClassDefFoundErrors.
13:14	cemerick	I think it's perfectly reasonable to be able to define "named views" (bad term) on a CouchDB instance. Especially on views where you have one set of query params for reduce=true and one for reduce=false, (same with group), it's surely common to have multiple logical views springing from a single ddoc/view-name combination.
13:15	pandeiro	right, maybe even a view shortcut that takes a param? ie for pagination purposes with skip?
13:15	pandeiro	maybe that's too much, just brainstorming
13:15	pandeiro	i guess the goal is to reduce the amount of boilerplate stuff
13:17	cemerick	right
13:17	pandeiro	cemerick: one other question - at what point (if any) do you think a db would be too large to load into an object like the CouchDB type does?
13:18	cemerick	the CouchDB type doesn't retain any data at all
13:18	cemerick	it's just a more convenient abstraction than com.ashafa.clutch
13:18	pandeiro	So it gets the seq each time I do (count...) etc?
13:18	cemerick	(count db) uses the database metadata — that's a very small call.
13:18	pandeiro	Ah ok of course
13:18	cemerick	If you seq over a very large database, well, that's a full table scan :-)
13:19	cemerick	"table scan"
13:19	unlink	Reading through many clojure projects, I've found that many library developers structure the extension points of their APIs as application specific macros (e.g. defroute, defsynth, deftemplate, etc.), where other programming languages might use interfaces, monads, or classes. I prefer to avoid macros on general principle. What are some popular alternatives for expressing complex APIs in Clojure?
13:20	cemerick	I guess one of the hazards of a type like that is that it gives people the opportunity to think that something clever is going on re: caching, when it's really just a higher-level API
13:20	cemerick	;-)
13:20	cemerick	pandeiro: so what would have kept you from thinking something more clever was going on?
13:21	pandeiro	knowing where to look for the implementation details of the different clojure protocols
13:21	cemerick	you mean conj, assoc, etc? Those aren't protocols (yet).
13:22	pandeiro	clojure.lang.ILookup for instance
13:22	pandeiro	I had never seen this valAt thing
13:23	Vinzent	cemerick, so they will be?
13:23	cemerick	pandeiro: the atlas provides a decent way to browse / discover these sorts of things, FWIW.
13:24	cemerick	Vinzent: who knows. Maybe, hopefully someday.
13:24	pandeiro	cemerick: i will check it out, thanks... gotta run but i will keep going at this and try not to bother you too much about it :) cheers
13:24	cemerick	pandeiro: no worries, I like getting the feedback/ideas. :-)
13:24	TimMc	unlink: Usually (I hope) each API macro is backed by a function or two that can be composed to the user's desire.
13:28	unlink	TimMc: Yes, although often one wants to express a more declarative or rich API than a single function. For example, there might be qualitatively different events the library might want to call you back on, or instance-global configuration which affects the behavior of your callbacks (e.g. what events to subscribe to). It would be nice to expose this and not lose composability.
13:56	boodle	anyone know why log4j.properties still not found in <projectroot>/resources even though that shows on the class path (lein classpath) in a noir project?
13:56	anntzer	I am trying to run lein-marginalia 0.6.1 with lein 1.6.2
13:56	anntzer	but I get some unmatched delimiter error
13:56	clojurebot	excusez-moi
13:56	anntzer	though my code runs fine otherwise
13:56	anntzer	anyone has some idea of why?
13:57	TimMc	You'd have to be more specific about the error.
13:57	anntzer	sure
13:58	anntzer	so I do lein plugin install lein-marginalia "0.6.1"
13:58	anntzer	now lein marg outputs
13:58	anntzer	Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.RuntimeException: clojure.lang.LispReader$ReaderException: java.lang.Exception: Unmatched delimiter: ] (NO_SOURCE_FILE:0)
13:58	anntzer	(etc etc.)
14:02	anntzer	I have the nagging feeling this has something to do with the versions of clojure / leiningen / marginalia
14:02	anntzer	but has anyone experienced this before?
14:02	technomancy	anntzer: can you repro on a fresh "lein new scratch" project?
14:04	anntzer	hum
14:04	anntzer	indeed no :p
14:07	anntzer	does that mean there is some problem with the parsing of my source file (which runs fine)?
14:07	anntzer	I guess so...
14:07	technomancy	yeah, IIRC marginalia doesn't use Clojure's reader exactly?
14:08	anntzer	ugh
14:10	TimMc	But it reuses LispReader?
14:26	Magnars	I've got a problem with char-encoding (shiver) ... My .clj file is in UTF-8. My terminal is in UTF-8. My project.clj has :jvm-opts ["-Dfile.encoding=utf-8"] ... and still doing 'lein run' on the terminal results in '?' in place of non-ascii chars. Any ideas?
14:27	johncourtland	i have a macro that looks like this: https://gist.github.com/1590658 and i can't seem to get the meta information for my deftypes formatted quite right
14:28	johncourtland	right now they come out looking like: (clojure.core/deftype clojure.core/name [] ITest (^"test" (index [this] "foo")) (^"test" (blah [this] "bar"))))
14:29	johncourtland	i've tried like 4 different mechanisms for getting the metadata and the method declaration on the same level and i keep running into the same issue
14:30	Magnars	* spitting the text into a file does work tho, it's just println that misbehaves
14:30	clj_newb	is there ever a valid reason to wrap a let around a defn, say: (let [x 20] (defn foo [] x))
14:30	clj_newb	why does clojure not require all defns to be at the "top level" ?
14:30	amalloy	clj_newb: i do that all the time
14:31	clj_newb	amalloy: why is this useful?
14:31	raek	Magnars: ok, could you try installing rlwrap? by default leiningen uses JLine (which breaks UTF-8) if it's not available.
14:31	clj_newb	amalloy: there is this mental hurdle for me how that a "global level" defn is syntatically embedded within a "let"
14:31	raek	Magnars: at least Leiningen uses it for "lein repl". I'm not sure about "lein run"
14:31	jweiss	what would cause resolve to return nil, like (resolve 'myns/myvar) when I've already done a :require myns in the current ns? seems to happen in during 'lein run' but not in the repl.
14:32	technomancy	jweiss: resolve uses the value of ns
14:32	amalloy	it avoids repeated work, and "privatizes" the things that defn depends on. for example, (let [x (expensive-calculation)] (defn foo [a b] (blah a b x))
14:32	technomancy	maybe you want ns-resolve?
14:32	hiredman	technomancy: he is using a namespace qualified symbol
14:33	clj_newb	amalloy: so now "x" (1) is only calculated once and (2) does not pollute the global namespace? and clojure cna get away with this since let does NOT create var bindings?
14:33	jweiss	yeah, i want to pass in a ns qualified symbol
14:33	Magnars	raek: thanks for the answer. I tried installing rlwrap using brew, but no change. Got this warning tho: In order to prevent conflicts when programs look for libreadline we are
14:33	Magnars	defaulting this GNU Readline installation to keg-only.
14:33	technomancy	oh hey, look who's not paying attention
14:33	amalloy	johncourtland: holy smokes, all those hashes make the code hard to read. none of them are actually creating gensyms, so step one is to just remove all of them
14:34	jweiss	thought there might be some kind of weird timing issue where even after i've called :require maybe that namespace hasn't been loaded somehow?
14:34	hiredman	called :require?
14:34	raek	Magnars: could you try setting that option in an environment variable?
14:34	hiredman	:require is a keyword
14:34	johncourtland	amalloy: you mean in the initial let bindings?
14:34	jweiss	hiredman - i mean in the (ns ... ) declaration at the top of the current file
14:34	hiredman	can you show the exect line you are using?
14:34	amalloy	i mean every hash in that entire gist
14:35	raek	Magnars: also, the reason this is broken on OS X is that Java is told that the OS default encoding is Mac Roman, but actually it is UTF-8
14:36	Magnars	raek: I see, thanks. Which option should I be setting?
14:36	raek	Magnars: another way to debug this: run "java -jar lib/clojure-...jar" and try evaluating (seq "åäö") in the repl
14:36	jweiss	hiredman: https://github.com/weissjeffm/fn.trace/blob/clojure-1.3/src/fn/trace.clj#L82
14:36	johncourtland	guess i went a little overboard w/ the gensyms
14:36	johncourtland	i had issues with variable capture earlier
14:36	raek	Magnars: -Dfile.encoding=utf-8
14:36	jweiss	i'm getting NPE on that line, looks like resolve returns nil, and then i try a var-get on it
14:37	hiredman	jweiss: fuh, that is not the same as what you said at all
14:37	Raynes	johncourtland: Yeah, but they aren't actually gensyms because they aren't being created inside of syntax quote.
14:37	raek	Magnars: the best way is if you could set that option globally
14:37	Raynes	So you've got a bunch of hideous names there is all.
14:37	jweiss	hiredman: that's the code i'm calling, i don't have a simple example of the calling code, since it always works at the repl
14:37	Magnars	raek: I'll try that.
14:37	TimMc	johncourtland: You still do -- "name" in the deftype.
14:38	johncourtland	yeah that was a typo
14:38	jweiss	hiredman: oh and that was also the wrong link. sorry ;)
14:38	amalloy	TimMc: eh?
14:38	johncourtland	i was trying to make a smaller, more succinct version of what i have and forgot to quote it
14:38	TimMc	amalloy: (deftype name ...) should be (deftype ~name ...)
14:39	amalloy	oh, right
14:40	johncourtland	ok, i've yanked the #'s out of the gist: https://gist.github.com/1590658 and quoted the name
14:40	jweiss	hiredman: https://github.com/weissjeffm/fn.trace/blob/use-var/src/fn/trace.clj#L76
14:41	raek	Magnars: the (seq "åäö") should evaluate to (\å \ä \ö) if the encoding of stdin/stdout from the JVM's point of view patches that of your terminal
14:41	hiredman	jweiss: are you actually using a namespace qualified symbol?
14:42	hiredman	(as you indicated you were)
14:42	raek	if you get another number of chars in that seq, or if any of the chars are jumbled, then something is wrong
14:42	Magnars	raek: in 'lein repl' the seq-command above worked like it should.
14:42	Magnars	raek: but not in 'lein run'
14:42	anntzer	ok I got it
14:43	jweiss	hiredman: well that's where i get a little fuzzy. if i do (:require [long.name.myns :as myns]) and then (resolve 'myns/myvar) does that count?
14:43	hiredman	no
14:43	amalloy	so...what typehinting are you trying to do here, johncourtland? i don't think any hints on protocol signatures are meaningful
14:43	raek	Magnars: what does it result in in 'lein run'?
14:43	johncourtland	amalloy: i'm actually trying to add annotations to the methods
14:43	Magnars	raek: question marks
14:43	johncourtland	this is a part of a grails plugin
14:44	anntzer	marginalia doesn't like ' (primes) in symbols
14:44	amalloy	ah
14:44	jweiss	hiredman: ok that would explain it, then. the compiler knows which var i'm referring to, so how do i make the same query?
14:44	johncourtland	and it looks like it wants @Action on all controller actions
14:44	hiredman	jweiss: do like technomancy said
14:44	johncourtland	this works if i manually type it all in
14:44	jweiss	hiredman: ok will try, thanks
14:45	johncourtland	haha
14:45	clj_newb	given an variable "obj", I want to figure out if "obj" has type defrecord or java.lang.*****. Is there a better way to do this than (str (type obj)) <-- and doing string comparison on some prefix? [this method seems awfully inefficient]
14:46	clj_newb	is there something like (record?) that goes along with defrecord?
14:46	Raynes	Has type 'defrecord'?
14:46	Raynes	You mean, you want to check if an object is an instance of some defrecord?
14:46	clj_newb	has a type created by defrecord
14:46	clj_newb	Raynes: exactly
14:47	jweiss	hiredman: i don't see why this works at the repl: (require '[clojure.set :as set]) (resolve 'set/difference) -> #'clojure.set/difference
14:47	jweiss	i think that is what i want ^
14:47	hiredman	jweiss: read what technomancy said
14:48	Raynes	clj_newb: https://refheap.com/paste/228
14:48	Raynes	clj_newb: Creating a record creates a Java class.
14:48	amalloy	johncourtland: it seems to work for me, afaict. i've forked to https://gist.github.com/1590781 and cleaned up the code without changing semantics
14:48	Raynes	With a name like any other.
14:48	Magnars	raek: running the script with 'java -Dfile.encoding=utf-8 -cp clojure-1.3.0.jar' outputs the correct chars.
14:48	jweiss	hiredman: yeah, resolve uses the current value of ns. i am trying to think of what would cause ns to not be what I want.
14:49	Magnars	raek: seems like a problem with leiningen
14:49	hiredman	jweiss: what makes you think it should be what you want?
14:49	raek	Magnars: yes. I'd expect 'lein repl' and 'lein run' to behave the same.
14:49	clj_newb	Raynes: is there a way to make this check if it's an instance of "any defrecord" rather than if it's an instance of "defrecord Foo" ?
14:49	Vinzent	clj_newb, why do you need this?
14:49	Raynes	So you don't care which defrecord, you just want to know if it is an instance of a record?
14:50	clj_newb	Raynes: yes
14:50	Magnars	raek: yes, must be the rlwrap issue - and that brew didn't install it properly for leiningen.
14:50	clj_newb	Vinzent: part of the type system I'm building
14:50	jweiss	hiredman: from the docs of ns-resolve: "Returns the var or Class to which a symbol will be resolved in the namespace...". the namespace i want it to resolve in is the current one.
14:50	raek	Magnars: maybe it's best to ask in #leiningen or on the leiningen mail list if this is a known problem and/or file a bug
14:50	Raynes	I doubt there is a trivial way to do that. Records produce Java classes.
14:50	hiredman	jweiss: ns is a compile time thing, it is almost never set to your namespace at runtime
14:50	hiredman	it happens that in the repl it is
14:50	jweiss	hiredman: ah
14:50	Magnars	raek: aye, I'll look at that. Thanks a lot for your help!
14:50	jweiss	i see the problem now. ok thanks hiredman
14:50	Vinzent	clj_newb, wow! I don't think it's possible. Records are just classes implementing IMeta and PersistentMap
14:51	raek	Magnars: I'd expect 'lein repl' to fail and 'lein run' to succeed if rlwrap/jline was the problem
14:51	raek	(assuming the java option worked in both cases)
14:52	Magnars	raek: yes, those are the symptoms
14:52	raek	Magnars: not the other way around?
14:52	johncourtland	amalloy: thanks for tidying it up, i still have a bad sense for idiomatic clojure, however i believe the annotations must go in the same paren level as the method declaration, directly before the name, like this (^"test" x [this a] (inc a))
14:53	Magnars	raek: oh, no, it's the other way around. repl works, run fails.
14:54	amalloy	oh right. i did change the semantics of that part, because what you were doing was clearly broken. but it seems i guessed the wrong intent
14:55	johncourtland	yeah i can't figure out how to... make it good
14:55	amalloy	updated https://gist.github.com/1590781 to reflect desires
14:58	johncourtland	amalloy: thank you, i was so stuck with the way i was doing it
14:59	johncourtland	didn't even think of pulling the let bindings out
15:01	amalloy	eh, that doesn't matter so much except for readability. i think all you were doing "wrong" was putting metadata on something other than the thing you wanted metadata on :P
15:02	amalloy	oh, and sneezing hashes all over the screen
15:03	johncourtland	see i thought i was going to cause variable capture if i didn't use hashes
15:03	johncourtland	i guess i still don't "get" it
15:03	amalloy	those are intended for symbols you're introducing in the expanded code
15:03	amalloy	&(let [x 1] `(let [var# ~x] var#))
15:03	lazybot	⇒ (clojure.core/let [var__11566__auto__ 1] var__11566__auto__)
15:04	amalloy	x is not captured here because it's not included in the expanded code; it's just a local that the macro uses to decide what code to expand into
15:06	johncourtland	i see
15:07	johncourtland	since all of my vars were in bindings of some kind they weren't going to capture
15:07	johncourtland	thanks again
15:33	Guest51270	Bronsa : )
15:33	Bronsa	oh.
15:33	Guest51270	anche qui mi kickerai?
15:35	bart1	hey
15:35	bart1	(first '(a b))
15:35	bart1	is:
15:35	bart1	a
15:35	bart1	(def x "(a b)")
15:35	bart1	(first (>>some-functions-here<< x))
15:35	bart1	and should give:
15:35	bart1	a
15:35	bart1	What should I put in 'some-functions' place?
15:36	metajack	read-string
15:36	bart1	this is correct, thanks :)
15:43	TimMc	bart1: Read about read-eval, by the way.
15:43	TimMc	http://clojuredocs.org/clojure_core/clojure.core/read-eval
15:47	clj_newb	(let [private-x ...] (defmacro Foo [ ] ... )) (Foo ...) <-- is it somehow possible to reference the value of private-x here?
15:47	clj_newb	(let [private-x ...] (defmacro Foo [ ] ... )) (Foo ...) <-- is it somehow possible to reference the value of private-x here? [EDIT: I don't actually need this (yet); I'm just curious if it's possible.]
15:49	joegallo	my inclination is to say no, but i await a more authoritative answer with bated breath.
15:49	joegallo	hiredman?
15:49	clojurebot	#<ClassCastException java.lang.ClassCastException: clojure.lang.Cons cannot be cast to clojure.lang.IPersistentStack>
15:49	hiredman	depends
15:49	hiredman	"reference" is very vague
15:50	hiredman	reference how, for what purpose? at macroexpand time? at runtime?
15:50	clj_newb	[computing]
15:51	clj_newb	runtime
15:51	hiredman	you should have enough data to come up with the answer for yourself
15:52	hiredman	think about it and play with macroexpand
15:52	clj_newb	the "obvious" ansewr is "NO" since defmacro just returns a list, which is spliced in
15:52	clj_newb	however, this does not prevent some trick to make it work
15:53	clj_newb	maybe the problem is my lack of understanding clojure's execution system
15:53	clj_newb	in my mind, clojure first sees the defmacro and it's like "okay; I have some shit registered for Foo"
15:53	clj_newb	then it goes on, sees (Foo ....) , and it's like "alright; let's call the macro Foo, get a list, and splice the code in"
15:53	clj_newb	so this whole "splice the code in" , taking the output of Foo as a list, would imply that private-x is NOT reachable
15:54	clj_newb	however, I can't prove that other tricks can't work.
15:54	clj_newb	hiredman: can you point out where I'm going wrong?
15:55	hiredman	how would such a trick work, what would it have to do? how could a compiler support something like that?
15:55	hiredman	(actually I think I could make it work, but it would be really really nasty)
15:55	clj_newb	I do not know; but I assume lisp/clojure language developers are smarter than me.
15:55	clj_newb	so I can't rule out the possibility.
15:56	clj_newb	I.e. my ignorance != proof of non-existence.
15:57	hiredman	you would have to refence prive-x in the macro, so it would get closed over by the fn class, and then emit reflective calls to pull it out
15:59	hiredman	clj_newb: locals (bindings of names to values using let) don't really exist at runtime, so there is nothing a macro can emit to get at the runtime value
15:59	hiredman	(unless you want to do horrible things)
16:03	clj_newb	hiredman: above, "locals" refers to "locals accessible by the defmacro" right?
16:33	amalloy	hm, interesting. in 1.3 if you call (with-meta f {...}) on a function, you get something back that doesn't print nearly as nicely as it did in 1.2
16:34	amalloy	eg, compare ##[first (with-meta first {})]
16:34	lazybot	⇒ [#<core$first clojure.core$first@8f905c> #< clojure.lang.AFunction$1@14ec5da>]
16:34	amalloy	in 1.2 those printed similarly, because https://github.com/clojure/clojure/commit/877c875235aaa7d9bc1bf5392f1c4991e9ea3f63 hadn't happened yet
16:35	hiredman	fn metadata has been iffy since it was added
16:36	hiredman	the idea is kind of iffy even
16:38	amalloy	how so? it seems like a good way to be able to add additional information like "here's how the function behaves in certain edge cases", which particular consumers might care about but most will just want a function
16:44	hiredman	amalloy: (with-meta x y) conceptually returns x' which is = to x and has metadata y, but does with-meta on a function return a new function? and is it equal the old one?
16:44	hiredman	I don't mean it's not useful, the implementation is just sketchy
16:45	amalloy	nod i'll buy that
16:45	hiredman	http://code.google.com/p/dexmaker/ who wants to port the clojure compiler to generate dex code?
16:49	amalloy	on a related note, (set! print-meta true) (with-meta (fn[]) {:x 1}) doesn't print the metadata map, on either 1.2 or 1.3. this makes some sense because the resulting form isn't readable anyway, but it would be nice if i could see the metadata on my functions without calling (meta) on them
16:55	bobhope	Hi, I have a question about how agents are run
16:56	bobhope	When multiple actions are enqueued to an agent, is there any attempt at making sure those actions run back-to-back on the same core?
16:56	bobhope	*same thread?
16:56	hiredman	no
16:56	bobhope	Would that be a useful enhancement?
16:57	hiredman	no
16:57	bobhope	why not?
16:57	bobhope	It seems like you could improve perf. of certain classes of problems by improving the locality tremendously
16:58	hiredman	it would complicate the design a lot, you would basically have to implement a fair scheduler for agent actions to guard against starvation and so loose guarantees of "back-to-back on the same core" anyway
16:59	bobhope	I was thinking you could bundle up to K agent actions on a single stealable task, and use transactions to either add a new action to a task that's currently running/queued, and if that task has already run >100[0] actions, then a new task is inserted in the back
17:00	bobhope	so you'd end up with an approximation of fairness
17:00	bobhope	and yet for workloads that have more communication/concurrency, they naturally tend to execute on several cores less often
17:01	bobhope	That is, I think that the work-stealing thread pool could form a good basis for this
17:01	hiredman	your checks have most likely killed any locality benefit
17:01	bobhope	what checks are you referring to?
17:02	bobhope	you'd only have to do a transactional addition of an action to a collection when you enqueue
17:02	hiredman	well, the thread is going to run an action and then check for more work
17:02	bobhope	everything else relies on the immutability
17:03	bobhope	the thread could have a private array of work to-be-done
17:03	hiredman	that check is really the same in both cases, and is going to kill any benefit
17:03	hiredman	how big of an array? arrays are not immutable
17:03	bobhope	so that the task that gets executed in the thread pool has a list of the actions to-be-executed
17:04	bobhope	the size of the array controls the amount of locality and frequency of round-robining
17:04	bobhope	it would either be fixed at 100-10000, or it would require a change to the agent api to pass parameters, or it could be dynamically tuned
17:04	hiredman	do it if you like, but I would be very surprised if you got a decent return on the added complexity
17:05	hiredman	if you have a tight loop you really should be using loop
17:05	bobhope	I have some applications for agents that have to do with making big graphs of agents that send actions all over
17:06	hiredman	sounds horrid
17:06	bobhope	sometimes an agent needs to receieve 3-4 messages before it can do the "computationally intense" part of the workload
17:06	bobhope	so the first several actions do something trivial, so it'd be great to make them happen back-to-back
17:06	hiredman	I would write it first and profile it
17:07	bobhope	why would a graph of computation be horrid?
17:07	hiredman	very complex, and it's going to be a real pain to debug and make changes to.
17:08	bobhope	some problems are like that
17:08	bobhope	I like trying to solve them :)
17:08	hiredman	have you considered jsut using fork join?
17:09	bobhope	yeah, but it's really a kind of dataflow problem
17:09	bobhope	with a huge number of discrete elements
17:09	bobhope	100k+
17:09	bobhope	fork-join doesn't seem suited for this problem, but I'd use the fork-join thread pool for it
17:10	bobhope	the problem is making big enough "chunks" of work so that the work-stealing scheduling would be efficient
17:10	bobhope	which is why I thought of the transactionally-updated lists that are sitting in the work queues
17:10	bobhope	those lists coarsen the granularity of the problem a bit
17:13	hiredman	it's a shame revelytix's forkjoin stuff isn't available
17:13	bobhope	I think that if forkjoin included reducers I could implement a decent dataflow executor
17:13	bobhope	but without them, it's hard
17:13	bobhope	what is revelytix's forkjoin stuff?
17:14	solussd	how can I tell, from clojure, if a file is a symlink?
17:14	hiredman	they have this while async forkjoin workflow for processing graphs
17:14	hiredman	whole
17:15	hiredman	they had a presentation about it at the conj
17:15	bobhope	solussd, there is no java way to detect symlinks as I recall
17:15	bobhope	solussd, you best bet is http://stackoverflow.com/questions/813710/java-1-6-determine-symbolic-links
17:15	bobhope	but with clojure
17:15	solussd	k. found that- was hoping someone wrote an io lib that does it. :)
17:16	bobhope	hiredman, did they say there were ever planning on open-sourcing it?
17:17	adiabatic	I've been working on http://www.4clojure.com/problem/30 and I've got a tangential question. In Usual Imperative Languages it's easy to process an array of things when you need to look ahead a bit or behind a bit because instead of referring to `things[i]` you can peek ahead and/or behind with `things[i-1]` or somesuch. However, when I'm using a single-assignment language — or just normal iterators in multipl
17:17	adiabatic	e-assignment languages — that sort of thing seems much harder to do. What are some lispy ways to map, filter, and/or reduce when you need to peek ahead or behind when processing? Are there some functions in clojure.core that I should be looking at?
17:18	hiredman	bobhope: it sounded like it
17:18	amalloy	&(partition 2 1 (range 4)) ;; adiabatic
17:18	lazybot	⇒ ((0 1) (1 2) (2 3))
17:19	adiabatic	Oooooh…
17:19	amalloy	solussd: Raynes would probably accept a pull request to https://github.com/Raynes/fs/blob/master/src/fs/core.clj if you want to implement that for him
17:19	adiabatic	Thanks!
17:21	solussd	amalloy: think Ill do it in a more ugly way-- since I'm already using clojure.java.shell/sh to get the permission's string (e.g. rwxr-xr-x), I can tell if it is a link from that too. :/
17:22	bobhope	hiredman, do you know if there are slides posted? or what type of graph processing they were doing?
17:24	hiredman	bobhope: executing sparql queries on large data sets I believe, dunno about slides
17:25	mabes	I seem to remember a handy slime/emacs function that would take you do the function defnition.. M-. I thought was the default key binding, but I can't seem to use/find it.. does that sound familiar to anyone?
17:25	llasram	mabes: slime-edit-definition, which is on M-. by default
17:26	mabes	llasram: thats the one! thanks
17:30	bobhope	I'm trying to understand how best to use vimclojure's repl. Should I be using \et, \ef, etc. to execute expressions in my code? If so, do they each exist in separate repl instances, or is it as if every expression I send to nailgun is running in the same repl? What about using \sr or \sR? Is there a way to make \et send the expression under my cursor to that repl?
17:36	nican	Hello, could somebody help me with this: https://gist.github.com/1591641 I do not seem to find the right function to acomplish it.
17:39	llasram	nican: at first glance, note that `def', `defn', etc always create a top-level var in the current namespace
17:40	nican	I see.
17:40	nican	I just started this; What would be the recommended way?
17:41	adiabatic	flatten?
17:41	clojurebot	#<ClassCastException java.lang.ClassCastException: clojure.lang.Cons cannot be cast to clojure.lang.IPersistentStack>
17:41	adiabatic	(sorry, I was trying to pump one of the bots for Why You Shouldn't Use Flatten)
17:41	nican	erm, give me a moment
17:41	llasram	nican: You can create a closure bound to a local identifier using either (let [name (fn name [] ...)]) or (letfn [(name [] ...)])
17:42	amalloy	~flatten
17:42	clojurebot	flatten just means you failed to use ->> and mapcat correctly
17:42	amalloy	haha, that's a new one
17:42	hiredman	~botsnack
17:42	clojurebot	Thanks! Can I have chocolate next time
17:43	llasram	nice
17:43	amalloy	clojurebot: who taught you that?
17:43	clojurebot	I don't understand.
17:43	amalloy	hiredman: can we get that feature for future factoids?
17:43	hiredman	oh sure, yeah, in the future
17:43	nican	Thanks, llasarm.
17:44	nican	Now, is possible to create a lazy seq, given a function that intakes the whole sequence, it returns the next element?
17:45	llasram	nican: Check out the `lazy-seq' macro :-)
17:45	adiabatic	~flatten
17:45	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.
17:46	adiabatic	oh right, concat
17:46	nican	Doing more research I will take a look. Thanks again.
17:46	amalloy	hiredman: i can't tell if you're sarcastically saying "yes, someday in the future that might happen", or reaffirming that it would not work retroactively for existing factoids
17:48	hiredman	amalloy: can't it be both?
17:48	amalloy	chuckle
18:47	adiabatic	w.t.f
18:48	adiabatic	I clicked on the "guest" thingy in the top right corner of http://clojure.org/cheatsheet and now I can't click on URLs past the first screenful
18:49	amro	"guest" isn't clickable
18:50	adiabatic	something up there
18:50	hiredman	looks like wikispaces decided to add broken html to everything
18:50	adiabatic	I fiddled with it and now 3/4 of the page is broken because some piece of javascript written by a lobotomized crab throws in a div#pageEditor.editorWrapper.editorLayer
18:51	adiabatic	oh, it's broken for everyone?
18:52	adiabatic	well, it's broken for Chrome, too. Hopefully someone will notice, then.
18:57	arohner	does anyone get an error with slime, where you just get "Evaluation aborted", with no stacktrace, no return value? Seems to happen when a command at the repl throws
18:57	amalloy	adiabatic: you can delete that element with the Inspector, at least, and get back to browsing
18:57	adiabatic	Entirely true, but I shouldn't have to do that once, much less on every page load
18:58	amalloy	of course not
18:58	amalloy	really clojure.org is not very well maintained, so i'm a bit surprised someone has gone to the trouble of adding something that breaks it
18:58	adiabatic	Might be wikispaces-level silly.
18:59	amalloy	could be. i don't know anything about wikispaces
19:00	johncourtland	hey amalloy, remember that hash riddled monster you helped me with earlier?
19:00	amalloy	i may never be able to forget :)
19:00	johncourtland	heh
19:01	johncourtland	well, apparently, clojure 1.3 + 1.4 don't read annotations from metadata in macros like that
19:01	johncourtland	i wrote a little proof
19:02	Raynes	Clojure should just do everything on Github. Even the sure should be github pages.
19:02	johncourtland	https://gist.github.com/1592051
19:02	Raynes	site
19:02	Raynes	Typing on a phone while on a bumpy ride in the rain.
19:07	johncourtland	i'm curious if that's by design or not
19:08	amalloy	dunno. i'm not the one to ask
19:10	hiredman	johncourtland: you may need to quote the classname in the macro
19:12	franks42	Q: can I use slurp somehow on in to keep reading from stdin until EOF?
19:12	johncourtland	hiredman: you mean the annotated class name or the deftype classname?
19:12	hiredman	the annotation name
19:12	johncourtland	the syntax-quote is expanding the annotation correctly as far as i can tell
19:12	johncourtland	but i will rty
19:12	johncourtland	*or try
19:12	hiredman	right
19:13	hiredman	but the code that is looking to add annotations looks for symbols, not classes
19:13	johncourtland	wonderful
19:14	johncourtland	that worked
19:14	johncourtland	if you don't mind me asking, as a complete newbie to clojure, how could i have figured that out on my own?
19:15	hiredman	read the source
19:15	hiredman	I opened up compiler.java, looked for annotations, which pointed be back to the add-annotations function in core.clj
19:16	franks42	(slurp in) simply doesn't seem to return...
19:16	JohnnyL	is there a API for making basic graphics easily in clojure?
19:18	johncourtland	makes sense, i guess i should have been more diligent, i had those open as well from rich's original commits to add annotations, thanks for your help
19:19	hiredman	sure
19:20	hiredman	http://groups.google.com/group/clojure-dev/browse_thread/thread/dc46c4e80e895dd6?hl=en we'll see who bites
19:21	franks42	same for (slurp (java.io.BufferedReader. in))
19:23	tmciver	franks42: looks like in is a Reader; slurp is expecting a File.
19:24	johncourtland	cool, i'll keep an eye on that
19:26	franks42	tmciver: yup - slurp seems to accept a lot of file-like things… like reader - just don't understand if I can convert in into something that slurp could use...
19:26	JorgeB	are there any good debuggers that work with Clojure atm?
19:27	hiredman	JorgeB: define good? jvm level debuggers work with clojure (jswat, etc) there are some tools built on top of jvm debuggers, but those can run into issues with clojure's locals clearing
19:28	hiredman	cdt is integrated to some extent in the next version of swank-clojure
19:28	hiredman	(clojure debugging toolkit)
19:30	JorgeB	hiredman, I am trying to get a sense of how they compare to pure-Java debuggers as found in the main IDEs
19:47	JohnnyL	is there a clojure to javascript convertor?
19:47	espringe	clojurescript
19:48	JohnnyL	ok
19:48	JohnnyL	thanks espringe
20:19	TimMc	JohnnyL: It's not done.
20:20	JohnnyL	TimMc: At the present moment I only wanted it for turtle graphics , perhaps on an html5 canvas.
20:21	brehaut	JohnnyL: are you wanting html based turtle graphics in particular, or just turtle graphics in general?
20:21	TimMc	You can use the Swing canvas just fine from Clojure.
20:21	adiabatic	Ew, Java-in-a-browser.
20:21	JohnnyL	TimMc: well, thats fine, but I wanted to use browser only.
20:21	TimMc	Ah, OK.
20:22	JohnnyL	brehaut: browser.
20:23	adiabatic	like this?: http://www.calormen.com/Logo/
20:27	JohnnyL	yah thats nice but I was looking at http://nakkaya.com/2010/01/09/a-simple-turtle-graphics-implementation-in-clojure/ from a developer's standpoint.
21:02	sritchie	is anyone seeing this from clojars?
21:02	sritchie	Caused by: org.apache.maven.artifact.versioning.OverConstrainedVersionException: No versions are present in the repository for the artifact with a range [1.2.0,1.2.0],[1.2.1,1.2.1],[1.3.0,1.3.0]
21:02	sritchie	this just started happening right now with [midje "1.3.0"] in dev-dependencies or dependencies
21:04	sritchie	@alexbaranosky I'm not seeing it with anything but midje, actually
21:17	TimMc	Here's a surprising error message:
21:17	TimMc	,(require '[clojure.main :as m clojure.core :as c])
21:17	clojurebot	#<IllegalArgumentException java.lang.IllegalArgumentException: No value supplied for key: true>
21:21	pandeiro	sritchie: were you planning on bumping the clutch version of your couch-session for ring?
21:29	sritchie	pandeiro: good call, I need to do that
21:29	pandeiro	sritchie: i just made the necessary changes here on my local copy, will test later tonight
21:30	sritchie	great, thanks
21:30	sritchie	did you upgrade ring as well?
21:30	pandeiro	yes
21:56	adiabatic	I'm trying to drop every nth item from a list. I've threaded 'coll' through to the end of this line:
21:56	adiabatic	(map #([%1 %2]) (cycle (range 1 n)))
21:56	technomancy	sritchie: that's a problem with maven version ranges, not with clojars.
21:56	technomancy	(apologies if I'm repeating myself; wifi is spotty)
21:57	sritchie	technomancy: no worries, I don't know why it just started happening with me
21:57	adiabatic	but I keep getting an error — wrong number of args (0) passed to PersistentVector. How have I got the lambda wrong?
21:57	sritchie	try #(vector %1 %2)
21:58	adiabatic	Why that and not #((vector %1 %2))?
21:58	technomancy	one of your deps needs to stop using version ranges; they suck.
21:58	sritchie	technomancy: that's midje
21:59	adiabatic	sritchie: doesn't work — can't class Boolean to IFn
21:59	sritchie	adiabatic: yeah, sorry about that, I just looked at the lambda and thought you were trying to make 2-vectors
22:00	adiabatic	https://gist.github.com/1592765
22:01	adiabatic	I was actually surprised that there's no zip function
22:05	sritchie	adiabatic: https://gist.github.com/1592781
22:07	TimMc	adiabatic: Is this for 4clojure?
22:07	adiabatic	yeah, #41
22:07	TimMc	OK, then I won't tell you the one function call that will do it for you. :-)
22:08	TimMc	(OK, there's a little setup for the args...)
22:13	alexbaranosky	midje?
22:13	alexbaranosky	something needs a fixin?
22:16	sritchie	alexbaranosky: looks like these version ranges are giving me some trouble!
22:17	sritchie	though it just started happening, not sure why
22:17	tmciver	TimMc: submitted my solution for #73. It's much better than what I had earlier but not nearly as Clojur-ish as your and chouser's solutions.
22:17	tmciver	TimMc: love the use of some with a map!
22:17	tmciver	TimMc: I'm still trying to figure out the diagonal part.
22:18	alexbaranosky	sritchie, would you mind opening an issue for your troubles?
22:18	sritchie	no problem, will do
22:18	alexbaranosky	thanks
22:21	sritchie	alexbaranosky: https://github.com/marick/Midje/issues/88
22:22	alexbaranosky	sritchie, I want Brian to see it. He's likely to know if there is any good reason we are using version ranges
22:22	sritchie	nathanmarz couldn't recreate it when he ran that example project, and it just started for me
22:22	sritchie	not really sure what's going on
22:22	sritchie	but that sounds good
22:55	amalloy	~zip
22:55	clojurebot	zip is not necessary in clojure, because map can walk over multiple sequences, acting as a zipWith. For example, (map list '(1 2 3) '(a b c)) yields ((1 a) (2 b) (3 c))
22:55	amalloy	adiabatic: ^