#clojure – 2012-09-07

2012-09-07

00:02	Frozenlock	Err.. how does one do this in cljs?: goog.i18n.DateTimeSymbols = goog.i18n.DateTimeSymbols_en_ISO;
00:03	Frozenlock	I was thinking of bindings, but the variable isn't declared as dynamic
00:05	xeqi	(set! goog.i18n/DateTimeSymbols goog.i18n/DateTimeSymbols_en_ISO) ?
00:06	tomoj	djanatyn: thanks for what?
00:06	tomoj	I was going to recommend (zero? x) instead of (= 0 x)
00:12	Frozenlock	xeqi: Thanks! (still untested). Is there the same function in clj? I don't remember ever using it! o_O
00:13	xeqi	Frozenlock: you can use set! to change public fields in java, but its rare to see them
00:14	xeqi	that was a guess btw, but I imagine its something similar
00:15	xeqi	I'm using it to play with three.js
00:16	Frozenlock	It does work, thank you very much :)
00:20	Frozenlock	Oh wow, the demos are impressive!
00:44	dansalmo	Is there a way to bind a symbol during run time based on an evaluation besides using (load-string (str "(def "...
00:45	tomoj	why?
00:45	clojurebot	Why is the ram gone is <reply>I blame UTF-16. http://www.tumblr.com/tagged/but-why-is-the-ram-gone
00:47	tomoj	wat?
00:47	clojurebot	For Jswat: start clojure with -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8888
00:47	tomoj	othx
00:53	dansalmo	Can list of symbols '(x y z) be defined at run time?
01:00	oyvindn	hmm, why is up to 5 arguments explicitly defined for "apply" with & args and not just args used (the first signature)?
01:04	antares_	dansalmo: (list (symbol "x") (symbol "y") (symbol "z"))
01:05	antares_	,(list (symbol "x") (symbol "y") (symbol "z"))
01:05	clojurebot	(x y z)
01:39	dysinger	Is there an easier way to go from an EntrySet to a hash than this ? (reduce conj {} (.entrySet {:one 1 :two 2}))
01:39	dysinger	,(reduce conj {} (.entrySet {:one 1 :two 2}))
01:39	clojurebot	{:two 2, :one 1}
01:40	tomoj	reduce conj is into
01:40	dysinger	thanx
01:40	dysinger	that's better
01:40	dysinger	I'm uber rusty :)
01:41	tomoj	where'd you get an entryset?
01:41	dysinger	java interop
01:41	tomoj	ah
01:45	samrat	in noir, how do I set up routes so that calling a route with params sends a different respnse than without params
01:45	samrat	like /api would redirect to api-docs, but /api?url=.. would respond with json
01:46	samrat	can I do this without using if; something like function overloading?
01:47	tomoj	"without using if" is a strange requirement
01:48	samrat	tomoj: no, I just wanted to know if it was possible
01:51	amalloy	samrat: lambdas are turing complete; anything is possible
01:52	muhoo	ok, weird (for [i bar] (apply hash-map i)) works, but (map #(apply hash-map) bar) pukes
01:52	muhoo	aren't they the same thing?
01:52	tomoj	#(apply hash-map) is nullary
01:53	muhoo	oh, duh %
01:53	muhoo	(map #(apply hash-map %) bar) works, sorry for noise
01:54	tomoj	is consensus that defpage is not evil?
02:01	dansalmo	antares_: I'm sorry, I meant is there a way to bind a value to each symbol in the list of symbols '(x y z)
02:02	antares_	,(let [x y z] [1 2 3] y)
02:02	clojurebot	#<ExecutionException java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: let requires an even number of forms in binding vector in sandbox:>
02:02	antares_	,(let [[x y z] [1 2 3]] y)
02:02	clojurebot	2
02:03	dysinger	argh I'm so rusty - what's the clojure equiv to haskell flip again ?
02:03	dansalmo	The symbols are in the list received as input, not avail during compile
02:04	dansalmo	the symbols in the list are not available until the program is running.
02:04	antares_	dysinger: (apply f (reverse args)) is the best I can think of
02:05	dansalmo	Can you show me a form that uses the list '(x y z)?
02:06	dansalmo	, (def (last '(x y z)))
02:06	clojurebot	#<Exception java.lang.Exception: SANBOX DENIED>
02:06	antares_	dansalmo: I am afraid there is no such thing
02:07	dansalmo	ok, thanks
02:07	antares_	dansalmo: if you know the structure of your list of values, my example with let will still work
02:07	antares_	,(let [xs '(1 2 3) [x y z] xs] y)
02:07	clojurebot	2
02:08	dansalmo	my list is a list of undefined symbols, that I would like to define
02:11	antares_	dansalmo: but you know the structure of the list of values?
02:12	antares_	if you don't, I am not sure how you would use those locals later
02:12	antares_	dansalmo: consider using a map instead
02:12	antares_	it has exactly the key/value relationship you need
02:14	dansalmo	, (let [[x y z] [1 2 3]] (map eval '(x y z)))
02:14	clojurebot	#<Exception java.lang.Exception: SANBOX DENIED>
02:15	dansalmo	this form picks up values from outside the form
02:15	amalloy	no it doesn't. it just breaks
02:16	dansalmo	actually, my list is nested, with repeated symbols, '(x z (y z))
02:16	dansalmo	you mean the form is not valid?
02:22	dansalmo	' (let [[x y z] [1 2 3]] [(eval y)])
02:22	dansalmo	,(let [[x y z] [1 2 3]] [(eval y)])
02:22	clojurebot	#<Exception java.lang.Exception: SANBOX DENIED>
02:22	antares_	eval is disabled for clojurebot
02:23	dansalmo	this works, but I can not eval the list
02:23	antares_	dansalmo: instead of trying to do that just use maps
02:23	dansalmo	but I think what I am trying to do would have duplicate keys
02:24	antares_	dansalmo: use a proplist https://github.com/michaelklishin/chash/blob/master/src/clojure/clojurewerkz/chash/proplists.clj but what you are trying to do is crying for associative data structures
02:25	dansalmo	thanks, I will look at this
02:48	dansalmo	antares: nested list of maps ( {:x '()} {:z '()} ( {:y '()} {:z '()} ) ) and list of keys with new values '(:x '1 :y '2 :z '3) will work
02:48	dansalmo	I just need to figure out the most efficient way to apply the new values
02:49	dansalmo	antares_: nested list of maps ( {:x '()} {:z '()} ( {:y '()} {:z '()} ) ) and list of keys with new values '(:x '1 :y '2 :z '3) will work
02:50	dansalmo	can not map a func to a nested list
02:51	dansalmo	antares_: thanks for the help, I think it will work.
02:52	antares_	dansalmo: nice
03:24	kral	'morning (here)
04:33	andersf_	g'morning (there)
04:38	ro_st	not for long!
04:38	ro_st	anyone using datomic and can answer questions about how to go about writing maps of data to it?
04:44	AustinYun	ro_st: elaborate?
04:45	ro_st	so it allows you to make arbitrary entities and then pin attributed values to it
04:46	ro_st	i'm wondering if anyone's gone through the process of taking a map of data and converted it into a series of datomic calls, and how that process went
04:48	ro_st	eg, how to sanely and clearly marry keys in the map to attributes in the schema. simplest would be to use attribute idents in the map, but if, say you don't want to expose that information, due to the map coming in off the web, there'd need to be some lookups or whatever to link them together
04:48	ro_st	this is more of an opinion-about-approach question than a how-do-i? question
04:55	AustinYun	so youre getting a map of kvps from the internet, and you want to update an entity in datomic? or add to the schema?
04:56	ro_st	add/update an entity in datomic
04:57	ro_st	the use case is storing client-side user events. clicked this button, checked that box, visited this url, entered that text.
04:58	AustinYun	and why dont you want to use the datomic attributes in the map you get from clients?
04:59	ro_st	i'm not sure :-) some vague idea that it might be prudent not to
05:04	ro_st	ok. i need to play more and pontificate less, obviously
05:05	AustinYun	well if you insist on basically translating the db keys to something else for the client, it seems the path of least resistance would be to write a translation fn that takes a client map, reduces through the keys and translates them, and then sends that off as a datomic transaction (also a map)
05:05	AustinYun	but i seriously must be missing something here and im well known as an idiot
05:06	ro_st	yes. my idiocy is that i haven't actually spent time in the repl with datomic yet. i'm sure that when i do, it'll all fall into place
05:07	AustinYun	i only started messing with it last week, so...
05:09	ro_st	what do you think, so far?
05:09	AustinYun	i'm testing it out because it seems like a natural fit for what i'm trying to do because of the way it deals with time
05:13	AustinYun	so far the whole immutable, simple data structures, which are also transactions, thing seems really cool
05:14	ro_st	yeah. i'm very enthusiastic
05:16	AustinYun	basically the fact that database transactions are just vectors of facts, is <3
05:16	AustinYun	ro_st: https://gist.github.com/2635666 was interesting to me
05:16	AustinYun	comes from http://pelle.github.com/Datomic/2012/07/09/transactions-as-entities/
05:19	ro_st	very cool
05:20	ro_st	gotta go!
05:22	clgv	,(doc dissoc-in)
05:22	clojurebot	No entiendo
05:22	clgv	:/
05:22	clgv	there is assoc-in but not dissoc-in?
05:25	jml	say I've got a vector of [x y] pairs and I want to filter on the 'x' bit, is there a more idiomatic way than (filter (fn [[x y]] (predicate? x)) x-y-pairs)
05:26	clgv	jml: (filter #(-> % first predicate?)) will work too with less pain
05:27	jml	clgv: ah, thanks.
05:27	jml	I confess I still have a bit of trouble reading '->'
05:28	jml	clearly I need to spend more time reading & writing clojure code :)
05:30	clgv	jml: it's semantically like piping ^^
05:30	AustinYun	so, on the tools side of things for writing clojure
05:30	clgv	with sequences it's ofter pretty handy to use ->>
05:31	AustinYun	i use vim normally but paredit is too nice to pass up -- anyone write keybindings for evil mode in emacs to rebind vim's movement keys to paredit ones?
05:31	jml	clgv: or like composition, but backwards!
05:31	jml	clgv: looking up ->> now.
05:32	AustinYun	jml: ->> is basically ->, but puts stuff last instead of second
05:33	jml	AustinYun: thanks.
05:35	AustinYun	it's hard to google for operator names sometimes :p
05:36	jml	yeah. and the description in the API docs is rather technical.
05:39	AustinYun	jml: http://clojuredocs.org/clojure_core/clojure.core/-%3E%3E#example_191
05:43	AustinYun	-> is ridiculously useful for accessing stuff from nested data structures, ->> more for chaining functions in my experience
05:45	AustinYun	(-> person :emplyer :address :city) is like person.employer.address.city in javascript or something
05:46	AustinYun	it literally never occurred to me to use -> to go through data structures until i read the docs, lol
05:46	jml	AustinYun: yeah, I've seen it mostly used for that in the stuff I've read.
05:46	AustinYun	i was like, "that's so clever! I'm an idiot for not thinking of that"
05:47	jml	I guess a lot falls out from keywords being functions.
05:47	AustinYun	the keyword <-> data structure function relationship is really useful
05:53	weavejester	Hm, the latest released versions of Lamina/Aleph seem to be incompatible in places.
05:55	weavejester	Or maybe the class names are misleading. Perhaps the ResultChannel is actually a pipeline in 0.5.0
05:55	AustinYun	man if nobody's done a vim keybinding thing for emacs' paredit, i'm going to have to do it :\
05:56	AustinYun	i can't stand the emacs chords for moving around
05:56	weavejester	There's evil mode, which doesn't have bindings for paredit, but is quite customisable
05:56	weavejester	However, Vim and paredit operate under two fundementally different philosophies
05:57	weavejester	Vim is all about action + movement
05:57	weavejester	While paredit treats the document as a tree
05:58	AustinYun	im actually using evil and paredit right now and the keyboard shortcuts kind of step on eachother, especially with xmonad
05:58	AustinYun	since M-( moves my friggin emacs window to workspace 9 lol
06:00	pyr	hey everyone, just to let you know that there is now a leiningen plugin in jenkins
06:02	AustinYun	i was thinking about for example, in evil normal mode, rebinding ( and ) to paredit-backwards and paredit-forwards
06:03	weavejester	AustinYun: That'll work so long as you don't treat them as proper movement keys
06:03	weavejester	AustinYun: i.e. d) will probably not work
06:09	mpenet	weavejester: just curious, what is the issue with pipelines/result-channel ?
06:10	weavejester	mpenet: In 0.4.0 result-channel seemed to be a type of channel, but in 0.5.0 I think it's a pipeline
06:14	AustinYun	odd
06:14	mpenet	it is a separate type now, I dont think it's built on top of pipelines. But yes, 0.5.0 is almost a total rewrite in this respect I think
06:15	AustinYun	paredit-forward/backward outright do not work correctly in evil mode
06:15	AustinYun	but to the extent they DO work, they work properly as movement commands
06:16	weavejester	mpenet: It works like a pipeline anyway. merge-results works on the output of http-request
06:16	AustinYun	for some reason paredit-forward won't properly move from top level sexp to top level sexp, and paredit-backward basically just is move backwards by a word it seems
06:16	mpenet	yep, pipelines return a result-channel so that makes sense
06:18	weavejester	mpenet: Do you know if there's a function in aleph for reading netty ChannelBuffers?
06:18	weavejester	mpenet: That's what's returned for the body of the http response
06:18	mpenet	weavejester: probably in aleph.formats, not sure though
06:18	weavejester	mpenet: Ah, thank you!
06:19	mpenet	there are a couple apparently
06:20	mpenet	weavejester: you can also use :autotransform depending on what you are doing
06:20	weavejester	Like (http-request {:method :get :url url :autotransform true}) ?
06:21	mpenet	almost: :auto-transform true
06:22	mpenet	but yes
06:22	weavejester	mpenet: Ah, perfect
06:23	weavejester	mpenet: Well, except that I probably want to filter out content types, so I probably don't want them as strings right away
06:23	weavejester	But channel-buffer->string works
06:23	mpenet	I think auto-transform checks for json and a couple of others
06:28	weavejester	mpenet: Do you know how you'd catch errors in an Aleph http-request ?
06:28	mpenet	weavejester: it seems it decodes the body for text json and xml content-types, and returns the raw body if unknown
06:28	weavejester	Ohh, wait, on-realized
06:29	mpenet	weavejester: it s just result channels, so you can use on-realize from lamina or run-pipeline
06:29	weavejester	mpenet: Can the callbacks on on-realized return a result, do you know?
06:29	mpenet	I almost always end up using run-pipeline
06:29	weavejester	mpenet: i.e. return the response on success, nil if not.
06:30	mpenet	weavejester: I wouldn't think so, you will need to check the status yourself
06:30	weavejester	mpenet: Ah, no, they do! :)
06:31	mpenet	oh, interesting
06:31	weavejester	mpenet: (on-realized response identity (constantly nil))
06:31	mpenet	weavejester: ah yes like this
06:31	weavejester	Now I just need to figure out how to apply that to merge-results
06:31	weavejester	Oh, unless it already works...
06:31	mpenet	weavejester: but this wont work in practice
06:32	weavejester	mpenet: Hm? Why not?
06:32	mpenet	weavejester: 404 for instance wont emit an error
06:32	mpenet	weavejester: the response completed successfully (no exceptions etc), you will have to check the status in the success handler or in a pipleline stage
06:33	mpenet	weavejester: to be double checked, but I think that is how it works
06:33	Cheiron	Hi, would you please have a look at this macro http://pastie.org/4679152
06:33	weavejester	mpenet: But in on-realized you supply a success and failure callback, right?
06:33	weavejester	mpenet: So if the success is identity, and the failure is (constantly nil) that should work?
06:34	mpenet	weavejester: yes, but result-channel failure and http response error code arent the same thing
06:34	mpenet	weavejester: you wont get 500 errors 404 etc as an error
06:35	weavejester	Cheiron: You need to "~" the first request on line 2. Also, you could maybe use a function instead of a macro?
06:35	weavejester	mpenet: Oh yeah
06:36	weavejester	mpenet: I'll make sure anything with a status >= 400 is converted to nil
06:36	Cheiron	oh, true
06:37	mpenet	weavejester: yup, if you are in a pipeline you can throw an error to trigger the error handler, not sure that is what you want to do though
06:38	weavejester	mpenet: Hm, merge-results returns nil if there are any errors in its components. That makes sense, but...
06:38	weavejester	I can use on-realized to realize a single result
06:39	weavejester	But I really want to realized many at once
06:39	Cheiron	sorry but what is wrong this time? http://pastie.org/4679182
06:39	mpenet	weavejester: imo it might be better just to check that in a pipeline stage and return (complete nil) if the http code >= 400
06:40	weavejester	mpenet: Yeah, but I'm more thinking about how to handle exceptions like connection errors
06:40	mpenet	weavejester: what do you mean by realize many at once? parallelization of queries?
06:40	weavejester	mpenet: Well, many HTTP requests can be made in parallel with NIO
06:44	weavejester	I wonder if I could do it by having...
06:44	weavejester	(task (on-realized response indentity (constantly nil)))
06:44	mpenet	weavejester: yes, but this is handled by aleph under the hood, not sure what you mean. If you want some way to manage the responses (like handle then in the order they come back etc), you might want to use a channel or some sort of queue
06:45	weavejester	mpenet: I want to kick off N http-requests and discard the results of those that except.
06:45	mpenet	weavejester: you dont need task I think, http-request is non blocking by default, as long as you dont deref it straight away
06:46	weavejester	mpenet: Right, but how do I merge the results?
06:46	weavejester	mpenet: If I do (merge-results good-resp bad-resp) then it will error for the whole
06:47	weavejester	mpenet: "If any of the inputs are realized as an error, the async-result returned by merge-results will also be realized as that error."
06:49	mpenet	weavejester: you could use a channel where you enqueue the responses only if they are valid, and from there I think you can use fns (like reduce*) to do the merging
06:50	weavejester	mpenet: Hm, yes, that's a good idea...
06:51	weavejester	I'm still getting used to thinking in terms of channels :)
06:51	mpenet	weavejester: there might be some higher level solution in Lamina to handle that, not sure
06:52	weavejester	mpenet: There's a join function that operates on channels, which I assume joins two channels into one. But… wait, I don't need that I don't think.
06:52	weavejester	mpenet: I mean, I just need one channel for the results
06:53	weavejester	mpenet: And the on-realized will enqueue on success and do nothing on error
06:53	weavejester	mpenet: Then I just consume the channel
06:53	mpenet	weavejester: exactly
06:53	mpenet	weavejester: that is how I would do it I think
06:54	weavejester	mpenet: I think you're right. I'm just too used to thinking functionally :)
06:56	mpenet	weavejester: there is some necessary evil in channels :)
07:05	Cheiron	sorry, network problems. what is wrong with this macro? http://pastie.org/4679301
07:08	mpenet	Cheiron: you need to quote what you want to expand
07:09	mpenet	(macroexpand-1 '(resource-operations request :get get-fn))
07:09	mpenet	Cheiron: also it seems the cond could be rewritten with case, avoiding some repetitions
07:10	Cheiron	why calling (resource-operations request :post get-fn) is giving: CompilerException java.lang.IllegalArgumentException: Can't call nil, compiling:(NO_SOURCE_PATH:14)
07:12	Apage43	grumble
07:12	mpenet	Cheiron: get-fn is nil as the Exception suggests
07:12	Apage43	trying to get at a java method that has both an int and a string overload
07:12	Apage43	specifically, trying to get the int form
07:12	Apage43	but it always winds up looking for a Long or long form, and not finding the right overload
07:13	Sgeo	Has anyone in here used JNAerator to make a Java wrapper for a C library and then used it from Clojure?
07:13	Apage43	even if I wrap it in (int)
07:13	Sgeo	Because I'm planning on doing something like that soonish
07:15	Apage43	.. fixed it
07:32	grayzone	hello to all : can anyone describe what is significate of[ #^Atrribute attr ]
08:13	Cheiron	for (defn resource-operations [request & {:keys [get post put delete head]}]) , is it possible to assign a name to the last named args map?
08:17	Cheiron	yes it is
08:17	Cheiron	:as
08:34	pepijndevos	What is the difference between the BitmapIndexedNode and the ArrayNode?
08:34	pepijndevos	$mail
08:41	pepijndevos	(in the implementation of PersistentHashMap)
08:53	bosie	i have a weird question as i am new to FP. how do i iterate through a list and keep information from previous entries at hand
08:53	bosie	in java i would simply use state to do it
08:54	hoeck1	bosie: depends on the kind of information you need
08:55	bosie	hoeck1: information i extract from previous entries
08:55	hoeck1	bosie: using reduce, you can keep and return single value
08:55	bosie	hoeck1: at the moment its up to 9 values
08:55	bosie	of a different type
08:55	cmiles74	bosie: well, you could build up a map or a vector or something.
08:55	hoeck1	with partition and partition-by in combination with map, you can access the n+1 or n-1 elements while mapping over a sequence
08:56	bosie	cmiles74: which i return plus the map i am already returning?
08:56	bosie	hoeck1: yes but i don't want to access elements. i want to access my distilled information, otherwise the algorithm would be n^2 instead of n
08:56	cmiles74	bosie: It's messy, but you could do that.
08:57	bosie	cmiles74: wouldn't that double the memory requirement?
08:57	bosie	cmiles74: since each iteration stores two instead of 1 map?
08:57	hoeck1	bosie: if its a tuned imperative algorithm, I personally wouldn't bother to convert it to FP style and just use (loop [] .. recur) to keep it fast
08:57	cmiles74	bosie: I don't wnat to argue too hard for this map in map thing. I was trying to say, you could build up your data structure through your use of reduce. I typed too slow, hoeck1 beat me to it.
08:58	bosie	cmiles74: oh no i just wanna know how i would code a similar usecase in clojure in the future
08:58	bosie	hoeck1: hmmm so there is no 'design pattern' for such use cases for FP?
08:59	Hodapp	I'm of the really pejorative opinion that design patterns are workarounds for weak languages...
08:59	bosie	Hodapp: well
08:59	hoeck1	bosie: there is, as cmiles74 suggested, using reduce and a map to store the loops state, but it may be inefficient and slower than the loop
08:59	bosie	Hodapp: so how do i solve my use case? ;)
09:00	bosie	Hodapp: there is no way clojure has no design patterns
09:00	hoeck1	bosie: maybe paste your code somewhere?
09:01	bosie	hoeck1: i have none as i don't know how to start….
09:01	bosie	hoeck1: i will try the reduce/map one
09:01	hoeck1	or the algorithms pseudocode? or the java version of it?
09:01	bosie	oh you don't wanna see the java version of it ;)
09:02	cmiles74	Myself, I use reduce to pull the bits I want out of a larger sequence (or map) and loop if I really am not reducing, for instance, when dealing with Java objects or something more complicated.
09:02	hoeck1	bosie: :), and what about simplified pseudocode?
09:02	bosie	ok lemme try
09:02	grayzone	Hello everyone, I'm new to clojure and I can not find the meaning of the characters # ^ Attributes, in the line: (startElement [uri local-name name-q # ^ Attributes atts] by xml.clj
09:03	cmiles74	grayzone: I believe that is hinting that the "atts" value is of the Java class Attributes.
09:05	grayzone	thanks cmiles74 ... at least now I have a track to follow
09:05	cmiles74	grayzone: Perhaps I read to fast, a hint is usually in the form (let [^Attribute atts] ...)...
09:06	cmiles74	Yes, that is a type hint. :) https://github.com/clojure/clojure/blob/master/src/clj/clojure/xml.clj#L35
09:07	grayzone	ok
09:07	nz-	how to get line numbers in emacs to start of every line? there is line-number-mode that puts number to bottom of each buffer
09:09	chronno	nz-: M-x global-linum-mode
09:11	nz-	chronno: thanks
09:11	chronno	nz-: np
09:17	nathanic	hello, i'm looking for clojure.tools.logging / log4j advice: how can i stop it from printing a line like "sun.reflect.GeneratedMethodAccessor3 invoke" before each log message?
09:20	uvtc	Hi grayzone. Clojure has syntactic sugar for a handful of things, and some of those use the hash mark as a prefix. Also, Clojure uses the caret for indicating metadata. #^foo is an older deprecated syntax for adding metadata.
09:23	grayzone	uvtc : thank's for clarification
09:25	grayzone	uvtc: ..... xml.clj version (https://github.com/clojure/clojure/blob/master/src/clj/clojure/xml.clj#L35) has and only ^ and not #^ and did not understand why : case closed
09:25	nz-	nathanic: i have used logback-classic instead of log4j
09:26	nathanic	nz-: interesting, was that still via clojure.tools.logging?
09:26	nz-	yes
09:27	nathanic	you were getting the GeneratedMethodAccessor spam like me, and that inspired you to switch?
09:27	nz-	nathanic: https://github.com/jsyrjala/ruuvitracker_server/blob/master/resources/logback.xml and https://github.com/jsyrjala/ruuvitracker_server/blob/master/project.clj#L22
09:28	nathanic	nz-: thanks!
09:28	nz-	nathanic: no, I have started using logback with java stuff before I started playing with clojure
09:29	nathanic	in real life java work i use slf4j in front of log4j, but i must admit i've never delved very deeply into their guts
09:29	nz-	I believe that tools.logging is also using slf4j
09:29	dsabanin	hey guys
09:30	dsabanin	I'm having big issues with clojure in production :) some weird issue with threading
09:30	nz-	basically log4j development has stopped and the guy behind the log4j works now with the slf4j/logback instead
09:31	clgv	dsabanin: what exactly?
09:32	dsabanin	basically I have a clojure-resque client that is sending work to agents on each new job in the queue. It runs fine for a while and then it gets stuck, all agent threads become listed as "waiting on condition" and nothing is happening until I restart the process. When I restart things start working again for a while. Sometimes it lasts for days, sometimes hours, sometimes 10 minutes is enough for it to get stuck again
09:33	nathanic	nz-: interesting re: logback. also this ruuvitracker seems like it's going to be very cool
09:33	dsabanin	I connected to stuck process through jdb, but I can't seem to find anything useful
09:33	chouser	you can't see what the stuck threads are waiting on?
09:34	nz-	nathanic: we shall see, currently the problem is lack of firmware developers
09:34	dsabanin	I have a trace but tells me nothing -- all clojure-agent-send-pool threads are stuck in this trace: http://pastie.org/4679976
09:35	wmealing_	dejavu
09:35	wmealing_	dsabanin: which kernel ?
09:35	dsabanin	2.6.32-5-amd64
09:35	wmealing_	ubuntu ?
09:35	dsabanin	Debian GNU/Linux 6.0
09:36	wmealing_	ok
09:36	wmealing_	i know there is a popen cow bug that may end up showing what you're saying happens
09:36	wmealing_	let me see if i can find the commit
09:38	dsabanin	wmealing_: thanks!
09:41	chouser	dsabanin: what version of java?
09:41	clojurebot	java.util.Date is the worst class in the entire JDK.
09:41	wmealing_	others can feel free to jump in and help..
09:42	wmealing_	it just sounds very familar to a problem i was solving
09:42	dsabanin	java version "1.7.0_04"
09:42	dsabanin	Java(TM) SE Runtime Environment (build 1.7.0_04-b20)
09:42	dsabanin	Java HotSpot(TM) 64-Bit Server VM (build 23.0-b21, mixed mode)
09:42	wmealing_	https://bugzilla.redhat.com/show_bug.cgi?id=664931
09:43	chouser	uvtc: fuzzy match between my use of "java" and "java.util.Date" would be my guess
09:43	uvtc	clojurebot: how was your date last night?
09:43	clojurebot	java.util.Date is the worst class in the entire JDK.
09:44	wmealing_	and he wonders why he can't keep a girl
09:44	chouser	dsabanin: http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/7-b147/java/util/concurrent/locks/AbstractQueuedSynchronizer.java#2043
09:44	chouser	Could it be that no more work is being sent to the agents?
09:45	dsabanin	chouser: hmmm, it could be
09:47	dsabanin	thanks for ideas and help guys
09:48	chouser	yeah, it looks to me like the agent threads are waiting for the next work item: http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/7-b147/java/util/concurrent/ThreadPoolExecutor.java?av=f#1043
09:53	dsabanin	good, so no bug in clojure at least :) probably a bug in resque-clojure lib
09:54	dsabanin	it probably doesn't handle well disconnects from redis server
09:55	wmealing_	dsabanin: -5 contains the patch.. they backported it
09:56	dsabanin	wmealing_: I asked our sysadmin guy, he says our kernel doesn't seem to be affected by that
09:56	wmealing_	ye
10:01	dfd	anyone here have experience with Chas Emerick's Friend library?
10:01	uvtc	~anyone
10:01	clojurebot	Just a heads up, you're more likely to get some help if you ask the question you really want the answer to, instead of "does anyone ..."
10:01	wmealing_	cemerick may have.
10:02	wmealing_	but i do agree with clojurebot
10:02	wmealing_	clojurebot: botsnack
10:02	dfd	haha, cemerick most definitely would.
10:02	clojurebot	Thanks! Can I have chocolate next time
10:03	dfd	yeah, sorry to be vague. I'm trying to write a workflow for an OAuth2 flow (app.net in particular), and I'm having trouble figuring out what to return. I thought I was returning the right auth-map, but I keep going back to the callback--I'm getting a endless loop.
10:04	mpenet	dsabanin: resque-clojure doesnt seem to use testOnBorrow on the connection pool, maybe you have a bunch of dead/rotten connections there
10:04	uvtc	$mail samflores Thanks again for the tip using clostache. I ran with it and did this https://github.com/fhd/clostache/wiki/Using-Partials-as-Includes .
10:04	lazybot	Message saved.
10:04	dsabanin	mpenet: I checked with lsof, there were only 2 connections, but both at CLOSE_WAIT state when the issue is happening
10:10	kryft	Hmm.. https://github.com/kingtim/nrepl.el doesn't mention SLIME in the requirements; should I still install it separately?
10:10	xeqi	dfd: are you returning a value from friend.workflows/make-auth ?
10:11	xeqi	kryft: no nrepl and slime are seperate
10:11	scriptor	kraft: nrepl.el should be all you need, it connects to the nrepl server on its own
10:12	scriptor	essentially, it's a slime/swank replacement
10:12	kryft	Ah
10:12	dfd	xeqi: hi, yeah, I return the ring redirect response for the oauth redirect url when we don't have the code to get a token, and then after we get the token, I return an auth-map.
10:12	kryft	Apparently swank-clojure (which is recommended on clojure.org, but claims to be deprecated in favor of nrepl) was also a stand-alone slime replacement?
10:14	xeqi	it was a version of swank that supported clojure
10:14	xeqi	* is
10:18	kryft	xeqi: Right, I'm just a bit confused because I've heard a lot of people talking about using SLIME and clojure, but apparently that's not strictly speaking true
10:18	dfd	xeqi: I know it's working up to a point, there's just some basic thing I'm not getting. This is a work in progress: https://gist.github.com/3666571
10:18	xeqi	kryft: nrepl.el just took over in the past couple weeks, its a transition point right now
10:19	xeqi	swank-clojure still works, but no one is maintaining it
10:25	xeqi	dfd: I think the :type needs to be ::friend/auth
10:26	xeqi	dfd: assuming you requires [cemerick.friend :as friend]
10:26	dfd	xeqi: I don't think that's it; I've been dumping out data from the authenticate* function in friend.clj, and auth? evaluates to true
10:26	dfd	I feel really dumb, there's something I'm just not getting no matter how many times I've read through friend.clj
10:27	duck11231	Does friend only work with Ring apps, or can it be used for other types of request/response applications?
10:27	xeqi	&::auth
10:27	lazybot	⇒ :clojure.core/auth
10:27	xeqi	&(= ::clojure.string/auth ::auth)
10:27	lazybot	⇒ false
10:27	dfd	duck11231: as far as I know, it's just ring apps; it uses the ring response format pretty extensively to store session data and whatnot
10:28	dfd	xeqi: I actually had it as ::friend/auth before and it was failing there.
10:28	duck11231	That's annoying. I support a couple different request types (all similar to ring) and was hoping I could use friend to replace my custom auth flow
10:29	dfd	duck11231: well, you could fork it. ;-)
10:34	xeqi	dfd: are you using 0.1.0?
10:35	dfd	xeqi: yes, in fact I'm using a checked out version from github so I can do some dumping of variables directly in the friend code.
10:39	xeqi	dfd: after https://github.com/cemerick/friend/blob/master/src/cemerick/friend.clj#L186 whats new-auth?, (-> request :session ::friend/unauthorized-uri), and (-> request ::friend/auth-config :default-landing-uri) ?
10:41	dfd	xeqi: good question...I don't get past this line in friend.clj: (if (and workflow-result (not (auth? workflow-result)))
10:41	dfd	sorry, I'll give you a line number
10:41	dfd	xeqi: line 175, https://github.com/cemerick/friend/blob/master/src/cemerick/friend.clj
10:42	cemerick	dfd: right, this goes back to the :type ::friend/auth issue that xeqi mentioned
10:42	dfd	xeqi: so, right before my code is dying, I print out auth? and my workflow-result. The workflow-result is a legit (I think) auth-map, and auth? evaluates to true. But that conditional fails.
10:43	cemerick	according to `(not (auth? workflow-result))`, it's not ;-)
10:43	dfd	cemerick: doh, yeah, it must be as you say. Let me see what I'm doing wrong...
10:44	dfd	cemerick, xeqi: okay, yeah, now it's starting to come clear; if I make :type ::friend/auth, I get the endless redirecting I was talking about talking to cemerick privately
10:45	dfd	so, um, apparently I guess maybe my identity binding isn't working...
10:45	cemerick	dfd: redirecting to…which URI?
10:46	xeqi	checkinng the unauthorized-uri and default-landing-uri might help for the redirecting
10:46	cemerick	dfd: this would be easier if we could see the whole file, plus your application of the authenticate middleware.
10:46	dfd	yeah, sorry, one sec--
10:48	dfd	https://github.com/ddellacosta/friend-example/tree/master/src/friend_test
10:48	dfd	cemerick: the handler code was largely stolen from your example code, and the oauth2.clj file is (obviously) in progress.
10:49	dfd	forgive my goofy comments, I talk to myself in my "in progress" code...
10:51	kryft	xeqi: The swank-clojure page gives the impression that swank is a version of SLIME: "be sure you don't have any other versions of SLIME loaded"
10:52	djanatyn	hey, where's the zip function?
10:52	dfd	cemerick: I didn't answer your previous question: it goes through the whole flow, first hitting the redirect URL then again getting the access token. As far as the OAuth flow itself, that seems to be fine.
10:52	djanatyn	like, it takes two lists and a predicate that takes two arguments
10:53	djanatyn	(zip + [1 2 3] [1 2 3]) => (2 4 6)
10:53	cemerick	dfd: it's an infinite loop because the workflow handles all requests; it should limit its action to a defined workflow URI (or set of URIs, if you need to define a separate callback URI, etc). See: https://github.com/cemerick/friend/blob/master/src/cemerick/friend/openid.clj#L109
10:53	djanatyn	I can't find it on clojuredocs
10:53	kryft	Ugh, maybe I should just try to use swank-clojure for now. It's confusing enough learning emacs, evil and clojure without trying to deduce what to do with nrepl based on what people say about slime or swank-clojure. :)
10:54	scriptor	djanatyn: for that example you can actually use map
10:54	dfd	djanaytn: zipper? http://clojuredocs.org/clojure_core/clojure.zip/zipper
10:54	scriptor	,(map + [1 2 3] [1 2 3])
10:54	clojurebot	(2 4 6)
10:54	djanatyn	oh! I remember that mapcar had that behavior too
10:54	scriptor	no, zipper is something else
10:54	djanatyn	I'm used to map :: (a -> b) -> [a] -> [b]
10:55	djanatyn	so, map can take an arbitrary number of arguments?
10:55	scriptor	djanatyn: yes, but map can take multiple collections
10:55	scriptor	and it passes the next element of each collection to the function, so it can function like zip
10:55	djanatyn	cool! thanks.
10:55	dfd	cemerick: okay, the dense fog is slowing lifting...
10:55	djanatyn	you guys are very helpful.
10:56	djanatyn	...I forgot why I wanted to use zip, though
10:56	dfd	cemerick: oh! how stupid of me, I think I get it--it's trying to process every request, but it should filter the url of the request...doh
10:58	djanatyn	Hodapp: haskell's type system is sometimes the most concise way to explain what I mean :)
11:00	hyPiRion	Is there a shorter way to write ##(map #(map inc %) [[1 2 3 4] [5 6 7 8]]) ?
11:00	lazybot	⇒ ((2 3 4 5) (6 7 8 9))
11:00	casion	where can I see good examples of (lazily) parsing input-streams in clojure?
11:00	hyPiRion	Or, well, maybe more idiomatic.
11:01	zerokarmaleft	when i call gen-class, if i specify :extends/:implements does the runtime automatically import the parent classes into the current ns?
11:02	zerokarmaleft	i suspect it does, but i'm needing a sanity check
11:03	jparishy	Does reify create a concrete class on the JVM? Because when I pass an object created by reify that implements an interface to .getClass, I definitely don't get what I expected
11:03	chouser	jparishy: yes
11:06	casion	hyPiRion: is it always 2d? to me a list comp would be more readable
11:08	hyPiRion	casion: so ##(for [x [[1 2 3 4] [5 6 7 8]]] (map inc x)) instead?
11:08	lazybot	⇒ ((2 3 4 5) (6 7 8 9))
11:09	hyPiRion	I don't know what's mor idiomatic, but it's a bit more readable, I agree.
11:09	casion	hyPiRion: that seems more in line with what I've seen done in the clojure code I've browsed
11:10	TimMc	hyPiRion: (map (partial map inc) ...)
11:11	zerokarmaleft	hyPiRion: i think your first nested map is still readable
11:12	zerokarmaleft	it follows the structure of the seq you're passing
11:13	hyPiRion	zerokarmaleft: it's more messier when you do something like this:
11:14	hyPiRion	(map (fn [is] (map #(get-in b %) is)) ...)
11:14	hyPiRion	and well, (map (partial (map (partial get-in b))) ...) isn't that beautiful either.
11:15	jparishy	chouser: so this would be expected? https://gist.github.com/3667031
11:16	zerokarmaleft	hyPiRion: i wonder if you could write a nested-map function that repeats those calls to an arbitrary depth
11:16	chouser	jparishy: yup, that's a classname believe it or not
11:17	zerokarmaleft	or at least depth 2, for the simple case
11:18	hyPiRion	Well, for me, it's all about readability, as long as one doesn't overengineer it.
11:19	jparishy	Heh, alright. thanks
11:26	casion	I am having a revelation… when you realize there isn't a library for something you think should be really simple, it's probably far from it.
11:44	Frozenlock	casion: Seems like a great thought
11:44	Frozenlock	I'll be sure to remember it.
11:45	casion	Frozenlock: great for you maybe, for me it's borderline infuriating ;)
11:46	Frozenlock	I have my own rule of thumb: If it looks simple, it will take you 4x as much time as you think. If it looks complicated, don't even start.
11:46	casion	haha :)
11:47	casion	every time I find a spec for a new format I want to support, I end up finding out that no one implements it correctly… and that's now my problem to support all the various bastardizations of it
11:48	uvtc	You guys, this is old hat stuff. The first one is well known as casion's conjecture, and the second is referred to as Frozenlock's formula.
11:49	Frozenlock	lol!
11:49	casion	woohoo, I'm e-famous!
11:49	Frozenlock	Yay, power to the pseudonym!
11:49	casion	when do the paychecks start rolling in?
12:03	Frozenlock	I can't believe the power cljs gives me over a webpage; I feel like a god!
12:03	casion	which one?
12:03	solussd	is there a way to provide a "transform", or something that happens when a auto generated constructor (e.g. ->Record or map->Record) is called?
12:04	Frozenlock	casion: Anubis, who else?
12:04	solussd	i'm guessing the answer is no, but it would be a nice feature- maybe something you specify when you declare the record
12:05	casion	Frozenlock: considering what cljs is, and how many gods ra absorbed… I'd think ra ;)
12:06	Frozenlock	But, but, Anubis almost destroyed earth! If it wasn't for SG1...
12:06	pepijndevos	Anyone familiar with clojure internals? I'm trying to understand https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/PersistentHashMap.java
12:07	pepijndevos	It seems the only difference between ArrayNode and BitmapIndexedNode is that the formar only contains nodes, while the other possibly contains leafs?
12:08	pepijndevos	Is that an optimization?
12:08	pepijndevos	I read this: http://blog.higher-order.net/2009/09/08/understanding-clojures-persistenthashmap-deftwice/ but it seems super simplified.
12:08	pepijndevos	on the other hand, the current implementation does not contain empty and single nodes.
12:15	chouser	pepijndevos: This stuff has changed quite a bit since I last looked at it, but it appears ArrayNode also don't bother with a bitmap mask -- it just always has a 32-node array.
12:17	pepijndevos	chouser: huh, so the bitmap mask is not a 32 element array?
12:17	pepijndevos	That is what I understood from the deftwice article
12:17	chouser	bitmap is an int: https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/PersistentHashMap.java#L571
12:18	pepijndevos	I need to study this. I'm beginning to see why my C implementation was slower than Clojure
12:19	pepijndevos	chouser: but it seems to be used like an array of bits?
12:28	chouser	pepijndevos: where? I see places where it's bit-shifted with >>>, counted with bitCount, bit-or'ed with \|
12:30	dnolen	pepijndevos: that's the whole idea being Bagwell's array mapped hash trie. rhickey changed the array into a integer in his implementations.
12:33	dnolen	pepijndevos: actually I'm probably wrong about that - http://en.wikipedia.org/wiki/Hash_array_mapped_trie
12:33	pepijndevos	dnolen: so what is this integer used for? I thought that was like an index into the array[32] of nodes
12:33	pepijndevos	oh
12:33	dnolen	pepijndevos: the path
12:34	pepijndevos	dnolen: right, in sections of 5 bits, which map to 32 elements per level
12:34	dnolen	pepijndevos: yes
12:35	pepijndevos	dnolen: so then both arraynode and bitmmapindexednodes have an array of 32 items, I think. Except, one is an array of nodes, and the other of object keys and values(acually 64 elements)
12:36	bobbywilson0	is there a way to do this?
12:36	bobbywilson0	,(conj '(1) '(2))
12:36	clojurebot	((2) 1)
12:36	bobbywilson0	and get ((2) (1))
12:37	pepijndevos	concat
12:37	pepijndevos	no
12:37	pepijndevos	seq?
12:37	clojurebot	seq is what
12:37	chouser	list
12:37	pepijndevos	,(list '(1) '(2))
12:37	clojurebot	((1) (2))
12:38	bobbywilson0	chouser: thanks!
12:38	cark	hello all, I think i found a little bug in algo.monad is there a maintainer i could talk to ?
12:39	bobbywilson0	pepijndevos: thanks! as well
12:39	cark	also an efficiency issue, got solution for both of these
12:39	cark	(simple solution)
12:40	uvtc	What database would you recommend using with a small/medium Clojure webapp? I don't expect a large amount of traffic. Was going to use something like SQLite as I'm already familiar with it... Have not yet tried CouchDB. Not sure exactly what to make of Datomic.
12:40	technomancy	uvtc: there are better embedded DBs on the JVM that SQLite
12:41	technomancy	SQLite has to do some crazy C interop
12:41	uvtc	technomancy: Right.
12:41	uvtc	technomancy: I've been pointed toward Derby and H2 and another one to use rather than SQLite.
12:42	uvtc	Not sure about hosting. I've heard Heroku is pretty easy to use.
12:42	technomancy	it's true! =)
12:42	ibdknox	lol
12:42	ibdknox	uvtc: technomancy works for heroku ;)
12:42	technomancy	if you're on Heroku then Postgres is the way to go
12:43	dnolen	pepijndevos: looking the ClojureScript implementations it seems like ArrayNodes don't hold values.
12:43	ibdknox	uvtc: though I will happily attest to its simplicity and ease of use
12:43	cark	postgres is awesome, why go for the lesser solutyion when it is so readily available
12:44	technomancy	if you know you're never going to grow beyond a single process or need redundancy then an embedded DB is a lot simpler to get going with
12:44	uvtc	ibdknox: thanks. I'm not too sure what to make of it (what with the manifolds and dynoplexes and control surfaces :) ).
12:44	pepijndevos	dnolen: right. just to save space? seems to add a lot of complexity
12:44	uvtc	lingo
12:44	technomancy	haha
12:45	cark	technomancy: yes and no, that's learning a whole new model, how are transactions behaving and such
12:45	pepijndevos	(dnolen, link?)
12:45	ibdknox	uvtc: haha, yeah don't worry about their terms. The only thing you need to know is that you can git push and then scale the number of processes running that
12:45	ibdknox	uvtc: that's basically all there is to it
12:45	technomancy	one of these days I'm going to give BDB a shot
12:45	ibdknox	BDB?
12:45	uvtc	Can I use an embedded db (where the db is just a file in my project dir) with Heroku?
12:45	dnolen	pepijndevos: I'm assuming it was done for performance reasons, look at the CLJS source man :)
12:46	dnolen	pepijndevos: relevant method is inode-lookup.
12:46	dnolen	pepijndevos: both BitmapIndexedNode & ArrayNode implement it.
12:46	technomancy	uvtc: no, the filesystem is ephemeral on Heroku, same as EC2
12:46	technomancy	ibdknox: berkeley DB
12:46	uvtc	cark: Thanks for the recommendation. I've used MySQL in the past, but not Postgres yet.
12:46	technomancy	embedded KV store
12:47	ibdknox	ah
12:47	pepijndevos	dnolen: ok, will try to navigate cljs
12:47	cark	uvtc: then go for mysql, unless you've got time to learn postgres. mysql is also available everywhere
12:48	technomancy	anyway, if you're not distributing the app to others who might have a low tolerance for complicated installation procedures then I'd go with postgres.
12:48	cark	uvtc: support is good for both in clojure and in the jvm
12:48	uvtc	technomancy: above you said, "if you know you're never going to grow beyond a single process or need redundancy then an embedded DB is a lot simpler to get going with", but just now you wrote that I can't use a little db file because the filesystem is ephemeral... (?)
12:48	technomancy	uvtc: right, because redundancy is built-in to the assumptions on heroku
12:49	chouser	uvtc: have you considered datomic? I'm itching for an excuse to use it, but haven't had one yet.
12:49	uvtc	Is "embedded db" == that little .sql file in my project dir?
12:49	technomancy	that is, you don't actually get redundancy on the free tier, but it forces you into patterns of application design that make redundancy easier
12:50	ibdknox	I wish they'd work on presenting datomic a bit better
12:50	cark	is it possible to have all of datomic in-process ?
12:50	madsy	Not far from NY and it's another state, lol
12:50	madsy	Sorry wrong channel
12:50	uvtc	chouser: Not sure what to make of datomic. That is to say, I'm not exactly sure what it is or how I'd use it. That's what I meant above by "not sure what to make of it".
12:50	Apage43	cark: there's an in-memory only way to use it, but I don't know that you get transactions?
12:51	technomancy	postgres unfortunately doesn't optimize for getting started at all
12:51	abalone	sorry if this question is dumb but is Light Table open for people to write plugins ? or is that for later?
12:52	ibdknox	abalone: the playground isn't yet
12:52	ibdknox	abalone: primarily because it makes big swings every couple of weeks and I will make absolutely no claim of stability
12:52	uvtc	technomancy: I'm looking at the postgres docs right now. Thanks for the tips.
12:52	solussd	mongodb + monger (clojure library) is the way to go for web apps, imo. Fast and better suited for storing data composed of arrays, maps, etc.
12:53	solussd	also, heroku has mongohq support via 'add-ons'.
12:53	technomancy	uvtc: I've been working on a simple postgres app on heroku if you want a sample to work from: https://github.com/heroku/buildkits
12:53	abalone	ibdknox: is there an old version that people can play with (in terms of practicing the mere act of writing a plugin) ?
12:53	technomancy	it also uses hstore, but the jdbc support for hstore is currently extremely sketchy, so I'd recommend waiting on that for now =(
12:54	ibdknox	abalone: no, though something along those lines might show up in not too long. Is there something specific you're wanting to do?
12:54	uvtc	technomancy: Thanks. Will read up on what "buildkits" and "buildpacks" are.
12:55	technomancy	uvtc: that's not really relevant to the topic at hand, but if you're interested ... =)
12:55	technomancy	uvtc: in particular see the instructions for running postgres in user-space
12:55	technomancy	when developing
12:55	abalone	ibdknox: i'd like to try paredit. i'm 100% sure that if paredit exists for light table in the future it will have been written by someone else much faster and in a better fashion but i'd like to try as an exercise
12:55	technomancy	typically postgres wants to run as a system daemon, which is appropriate for production but kinda crappy for dev.
12:55	ibdknox	abalone: so you can build paredit around codemirror directly. :)
12:56	abalone	ibdknox: oh ok :)
12:56	abalone	has someone already tried?
12:56	ibdknox	abalone: and that would be a very welcome project!
12:56	ibdknox	abalone: not that I know of
12:56	uvtc	technomancy: I can't think of any reason why it'd be a hassle to have postgres running locally for dev.
12:56	ibdknox	though I haven't done a ton of digging
12:57	pepijndevos	dnolen: okay, makes sense now. But… take a look at inode-assoc. ouch. Who implemented this? I'm curious to know the speed improvement.
12:57	dnolen	pepijndevos: speed improvement over what?
12:57	abalone	i'll look into it but i really must emphasize that i hope this doesn't cause The Right Person to skip doing it just because i said i'll make feeble efforts
12:58	ohpauleez	abalone: what's the project? (late to the party)
12:58	ibdknox	abalone: maybe "the right person" ends up being you, or helping with your impl
12:58	pepijndevos	dnolen: over just using one type of bitmap node that has nodes and leaves in a big array.
12:58	abalone	ohpauleez: paredit for codemirror
12:58	abalone	i just can't code without it, so i really want it for light table
12:58	ohpauleez	ahhh - that would indeed be absolutely great
12:58	dnolen	pepijndevos: because rhickey probably knows he's doing and we don't. We just ported the Java.
12:59	abalone	coding lisp without paredit feels like coding with a pen and paper
13:00	pepijndevos	dnolen: okay. to bad rhickey isn't on irc much lately. (read: since 1.2 or so)
13:00	kang	question: is there any corresponding function of the R's which.max function in clojure/incanter?
13:00	dnolen	pepijndevos: even if he was he probably say read the code like 10 more times ;)
13:01	dnolen	pepijndevos: I'm sure if you think about it some more you'll some kind of complexity advantage.
13:01	dnolen	see some
13:03	pepijndevos	dnolen: hah, probably.
13:03	pepijndevos	dnolen: maybe I can just strip the cljs from the arraynode and see what happens
13:04	dnolen	pepijndevos: getting that code to work under Clojure should require trivial changes ;)
13:05	pepijndevos	dnolen: dinner time. I'll ping you if I have any significant revelations.
13:08	serpent213	hi
13:09	serpent213	i have a function call (clj-http.client/get) which works fine on the repl but does not return in production. how can i debug this...?
13:10	serpent213	could it be a threading issue? i use futures here and there...
13:11	aperiodic	usually when someone runs into a difference between the repl and anywhere else, it's something to do with laziness
13:11	aperiodic	the REPL forces evaluation of lazy sequences
13:13	serpent213	the only argument is the URL, which looks good in the log directly before the "get"
13:14	serpent213	the logging call afterwards does not get evaluated
13:20	jkkramer	serpent213: could the call be throwing an exception? clj-http throws on 404 etc by default
13:21	serpent213	jkkramer: no, the call does not return, no log output
13:22	serpent213	the same code did already work in another callchain... i'm really puzzled :(
13:24	jkkramer	serpent213: what does "not return" mean if not an exception? it times out, returns nil, …?
13:27	casion	,(time (= (seq (byte-array (map byte (range 100)))) (seq (byte-array (map byte (range 100))))))
13:27	clojurebot	"Elapsed time: 11.256664 msecs"
13:27	clojurebot	true
13:27	casion	,(time (java.util.Arrays/equals (byte-array (map byte (range 100))) (byte-array (map byte (range 100)))))
13:27	clojurebot	"Elapsed time: 9.752234 msecs"
13:27	clojurebot	true
13:28	serpent213	jkkramer: good point. the following statement is never executed, so i assume it just hangs somewhere in the clj-http code forever...
13:28	casion	hum, seq is always faster here by a factor of 2
13:29	jkkramer	serpent213: if it's on another thread, it might be throwing an exception you're not seeing
13:33	jkkramer	,((fn [] (future (println "foo") (throw (Exception.)) (println "bar")) :done))
13:33	clojurebot	#<SecurityException java.lang.SecurityException: no threads please>
13:44	nz-	I am getting this error with clojurescript: Uncaught Error: No protocol method IWatchable.-notify-watches defined for type object: {}
13:45	nz-	I have an atom that holds {}, and I am using swap! to update it
13:46	nz-	what I am doing wrong?
13:47	serpent213	jkkramer: where do these exceptions end up...? how can i catch them?
13:47	nz-	I dont have any watches
13:50	nz-	seems that the value gets updated
13:52	fenton	can anyone comment on my inability to read a resource file defined in a clojure library from java? https://github.com/ftravers/PublicDocumentation/blob/master/clojure/resource-file.md
13:53	fenton	simple example at above url
13:54	jkkramer	serpent213: you catch them on the thread they're thrown on
14:00	pepijndevos	does vimclojure work with nrepl already? I see there is a branch.
14:01	tanzoniteblack	pepijndevos: somebody was asking about that yesterday, and the best response I heard was "um...maybe?". apparently it's still in progress, but can't hurt to go ahead and try it out if you see the branch so you can report what's broken
14:02	pepijndevos	tanzoniteblack: The problem is setting it up. Maybe I need to say wantnrepl = "paht/tonrepl/client"
14:02	serpent213	jkkramer: (log/info) does work in the thread, so i assumed exceptions would be printed out as well...
14:03	serpent213	jkkramer: i'll dig deeper in that direction, thanks a lot! :)
14:04	pepijndevos	tanzoniteblack: from what I can tell, the client is there, but the plugin itself is not.
14:05	aperiodic	serpent213: the exceptions will bubble up when the future is deref'd
14:07	tanzoniteblack	pepijndevos: I'd say that nrepl isn't up and working with vim yet then, which is a much more definitive answer then was given yesterday, so thanks for exploring that. Of course...by the next time someone asks that in #clojure the answer will probably have changed....but oh well
14:07	pepijndevos	tanzoniteblack: https://twitter.com/kotarak/status/240069366224416768
14:07	serpent213	aperiodic: i never deref some of them -- does clojure deal with this? or is it bad style?
14:08	pepijndevos	https://bitbucket.org/kotarak/vimclojure/issue/82/use-nrepl
14:12	nz-_	well, my problem was that I was trying to swap! a map, and not an atom
14:19	aperiodic	serpent213: this is mostly speculation, but i think those computations would just terminate, and the thread pool would move on to other things. should have no ill effects
14:22	dnolen	ninjudd: is drip supposed to work w/ lein 2 only?
14:28	serpent213	aperiodic: good to hear, thx :)
14:32	serpent213	jkkramer: connection refused -- you are my hero! :* ,)
14:33	jkkramer	serpent213: glad I could help
15:19	wting	Running `lein new foobar` gives me "Could not transfer artifact [...] from/to central [...] connection to http:// refused."
15:19	wting	I'm not sure what to do to get leiningen working
15:20	xeqi	wting: what version?
15:21	wting	xeqi: 20120722-1 from github.com/technomancy/leiningen
15:25	wting	The above was from Arch's package repo. I've downloaded and installed directly from the repo now with the same issue.
15:25	wting	from the GitHub repo*
15:26	xeqi	k, does it just say "http://" or does it have a full url?
15:26	wting	just http
15:26	wting	Well.. "Could not transfer artifact lein-newnew:lein-newnew:pom:0.3.5 from/to central (http://repo1.maven.org/maven2): Connection to http:// refused"
15:27	wting	and "Could not transfer artifact lein-newnew:lein-newnew:pom:0.3.5 from/to clojars (https://clojars.org/repo/): Connection to http:// refused"
15:28	xeqi	hmm, what does `lein version` give you?
15:28	chouser	How does one build clojure these days? Just typing "ant" failed on a test generative dep
15:28	wting	Same errors, here's the full error message: http://pastebin.com/yLciNDBV
15:29	xeqi	k, how are you installing it from the repo?
15:30	wting	Following the instructions from the repo: https://github.com/technomancy/leiningen#installation Basically downloading, chmod+x lein, ./lein repl
15:31	Bronsa	chouser: maven install?
15:32	xeqi	k, then you should have preview10
15:32	xeqi	can you browse to https://clojars.org/ ?
15:33	wting	yup, what's preview10?
15:33	xeqi	the version
15:33	chouser	Hm, skipping the tests works for now
15:33	serpent213	aperiodic: guess you were right: http://grokbase.com/t/gg/clojure/119wytxaph/are-futures-garbage-collected
15:36	xeqi	wting: do you have a ~/.lein/profiles.clj
15:38	wting	nope, only have ~/.lein/self-installs/leiningen-2.0.0-preview10-standalone.jar
15:39	dnolen	chouser: 'mvn package' works for me.
15:39	chouser	ah, ok. Didn't realize ant wasn't fully supported anymore.
15:39	wting	I just removed ~/.m2 and ~/.lein and tried running lein again, same result.
15:40	nbeloglazov	Is there a reason why map-indexed takes only 1 collection?
15:41	S11001001	nbeloglazov: 'cause if you're using more than one there's no real benefit, just pass (range) as one of them
15:41	nbeloglazov	S11001001: ah, cool. Thanks
15:42	nbeloglazov	Didn't think about range :\
15:42	S11001001	as it is map-indexed is kind of trading clarity for efficiency (quick, does the number come first or second?)
15:43	S11001001	as a fun challenge, implement map on two-or-three seqs with full chunking support :)
15:44	xeqi	wting: it sounds like its setup right. the refused connections are weird, almost like theres a proxy or something in the way messing it up
15:45	wting	xeqi: I don't know, I just logged into my Debian VPS, went through the same steps and got the same result.
15:48	wting	Same problems with Ubuntu. These 3 boxes (Arch, Debian, and Ubuntu) are in 3 separate states...
15:49	xeqi	hmm
15:49	xeqi	now I really don't want to delete my ~/.m2 and try it
15:49	wting	lol
15:49	wting	you can always just back up ~/.m2 and ~/.lein
15:49	wting	or create a new test user
15:50	wting	but thanks for your help anyway
15:50	xeqi	yeah, realized that after a moment
15:50	wting	I gotta run, I'll probably report it to GitHub issues tonight
15:52	xeqi	wting: https://www.refheap.com/paste/4927 works :/
15:53	wting	wth
15:53	wting	lemme ssh into a university CS machine and try it
15:54	wting	http://pastebin.com/20g0MaXg
15:54	wting	Same result. :-/
15:55	Sgeo	Why does awtbot provide a with-robot macro?
15:55	Sgeo	It doesn't seem to be significantly different from doto?
15:58	scriptor	Sgeo: readability, maybe?
15:58	xeqi	it is doto
15:58	Sgeo	I just played a bit with type-text
15:58	Sgeo	It seems to be a bit slow
15:59	xeqi	wting: try `lein self-install` before `lein new ..`
16:26	nz-_	is there a function for removing duplicates from a list? like unix command uniq?
16:26	Raynes	&(distinct [1 1 2 2 3 2 4 5 6])
16:26	lazybot	⇒ (1 2 3 4 5 6)
16:26	nz-	(doc distinct)
16:26	clojurebot	"([coll]); Returns a lazy sequence of the elements of coll with duplicates removed"
16:27	nz-	ok, how about one where I can provide function that decides what is "equal"?
16:28	Raynes	Can't help ya there.
16:28	Cheiron_	Hi, what is the recommended clojure lib to work with Kafka?
16:29	nz-	[{:a 1 :b 2} {:a 1 :c 3} {:a 2 :d 4}] here entries that have same value for :a would be identical and duplicates need to be dropped (doesn't matter which one gets dropped)
16:29	ohpauleez	nz-: I think at that point you're into filter territory
16:30	ohpauleez	and this question just came up a few months ago
16:30	ohpauleez	maybe a few weeks aog
16:30	ohpauleez	in here
16:30	ohpauleez	I din't recall the answer
16:30	aperiodic	maybe something with group-by :a?
16:31	nz-	ok, group-by :a, loop over list and take first item from each list
16:32	aperiodic	(for [[v dups] (group-by :a coll)] (first dups))
16:32	aperiodic	yeah
16:33	metellus	,(group-by :a [{:a 1 :b 2} {:a 1 :c 3} {:a 2 :d 4}])
16:33	clojurebot	{1 [{:a 1, :b 2} {:a 1, :c 3}], 2 [{:a 2, :d 4}]}
16:33	metellus	,(map first (vals (group-by :a [{:a 1 :b 2} {:a 1 :c 3} {:a 2 :d 4}])))
16:33	clojurebot	({:a 1, :b 2} {:a 2, :d 4})
16:34	nz-	thanks
16:35	metellus	or use partition-by
16:35	metellus	and you can get first of the (vals ...)
16:35	nz-	(doc parititon-by)
16:35	clojurebot	Pardon?
16:36	metellus	and you can get rid of the (vals ...)
16:36	nz-	(doc partition-by)
16:36	clojurebot	"([f coll]); Applies f to each value in coll, splitting it each time f returns a new value. Returns a lazy seq of partitions."
16:36	metellus	,(partition-by :a [{:a 1 :b 2} {:a 1 :c 3} {:a 2 :d 4}])
16:36	clojurebot	(({:a 1, :b 2} {:a 1, :c 3}) ({:a 2, :d 4}))
16:37	nz-	by the way, is there a faq or a cookbook like thing for these kinds of questions?
16:38	devn	clojurebot: the cheat sheet coupled with clojuredocs.org and a repl
16:38	clojurebot	clojure.repl in swank is not useful for two reasons: 0) everything it provides has an enhanced version in slime and 1) having to re-refer it every time you changed namespaces would be annoying
16:38	tmciver	metellus: partition-by only works for consecutive duplicates, yes?
16:38	devn	err nz- ^
16:39	metellus	oh, right. group-by it is, then
16:39	uvtc	nz- : There's this http://en.wikibooks.org/wiki/Clojure_Programming/Examples/Cookbook
16:39	devn	be careful!
16:39	devn	it's badly out of date
16:40	devn	unless someone has been giving it some time and energy
16:40	uvtc	Yeah, not sure who maintains that wiki. Changes seem to take a while to be approved.
16:41	Sgeo	,(doc assoc!)
16:41	clojurebot	"([coll key val] [coll key val & kvs]); Alpha - subject to change. When applied to a transient map, adds mapping of key(s) to val(s). When applied to a transient vector, sets the val at index. Note - index must be <= (count vector). Returns coll."
16:41	uvtc	There's http://rosettacode.org/wiki/Category:Clojure , but it's not quite a cookbook.
16:45	mefesto	is clojure.xml/emit meant to be used? it's public in the source but listed in the api docs
16:54	Raynes	$findfn [1 2 1 2 3 3] [1 2 3]
16:54	lazybot	[clojure.core/distinct]
16:54	Raynes	xeqi: Fixed findfn.
16:55	nz-	Raynes: findfn tries every function until it find match?
16:55	Raynes	Pretty much.
16:55	typeclassy	very cool
16:56	nz-	is there some doc that tell what tricks the bots can do?
16:56	Raynes	Not really.
16:56	Raynes	You can browse his plugins on irc
16:56	Raynes	$whatis source
16:56	lazybot	source is http://github.com/flatland/lazybot
16:56	Raynes	src/lazybot/plugins
16:56	Raynes	He can even tell you the weather.
16:56	Raynes	$conditions 35554
16:57	lazybot	Last Updated on September 7, 3:12 PM CDT; Partly Cloudy; Dewpoint: 74 F (23 C); Precipitation today: 0.00 in (0 mm); Temperature: 89 F (31.7 C); Windchill: NA; Wind speed: 2mph; Wind gust: 5.0mph; URL: http://www.wunderground.com/US/AL/Eldridge.html.
16:57	hyPiRion	Hot.
16:57	uvtc	lazybot: fortune
16:57	lazybot	Never Graduate
16:58	Raynes	hrm. I thought I deleted that plugin.
16:58	nz-	$source partition-by
16:58	lazybot	partition-by is http://is.gd/rB7Az4
16:58	Raynes	That one needs fixed too.
16:58	Raynes	It is pointing at the wrong tag and stuff.
16:58	uvtc	lazybot: leet this message
16:58	uvtc	$leet this message
16:58	muhoo	$40
16:59	Raynes	lazybot: elite this message
16:59	lazybot	7h!5 m355493
16:59	uvtc	Ooof.
16:59	tanzoniteblack	lazybot: elite Raynes: this plugin seems terribly unnecessary
16:59	lazybot	r4yn35: 7h!5 p1u9!n 533m5 73rr!81y unn3c3554ry
16:59	Raynes	Indeed, that was on my deletion list as well. :p
16:59	aperiodic	is there an inverse?
17:00	Raynes	Don't think so.
17:00	uvtc	lazybot: help
17:00	lazybot	You're going to need to tell me what you want help with.
17:00	ivaraasen	Raynes: I reckon the weather forecast only works for US zip codes?
17:00	Raynes	$help elite
17:00	lazybot	Raynes: Takes words and replaces them with their leetspeak alternatives.
17:00	muhoo	lazybot: leet 1337
17:00	Raynes	ivaraasen: You can give it names too. wunderground seems to have information for other countries.
17:01	Raynes	$conditions Melbourne, Australia
17:01	lazybot	Last Updated on September 8, 6:58 AM EST; Mostly Cloudy; Dewpoint: NA; Precipitation today: 0.00 in (0 mm); Temperature: 51.3 F (10.7 C); Windchill: NA; Wind speed: 7.6mph; Wind gust: 12.6mph; URL: http://www.wunderground.com/global/stations/94868.html.
17:01	uvtc	$timer 0:0:5 surprise!
17:01	lazybot	Timer added.
17:01	lazybot	surprise!
17:02	uvtc	tehehe
17:02	Raynes	That plugin needs rewritten so bad.
17:02	tanzoniteblack	$("$conditions Palo Alta, CA")
17:02	cemerick	Raynes: lazybot needs a timezone plugin.
17:02	tanzoniteblack	,("$conditions Palo Alta, CA")
17:02	clojurebot	#<ClassCastException java.lang.ClassCastException: java.lang.String cannot be cast to clojure.lang.IFn>
17:02	Raynes	cemerick: That would do?
17:03	uvtc	$pwd
17:03	cemerick	lazybot: time in Hong Kong
17:03	lazybot	cemerick: The time is now 2012-09-07T20:59:58Z
17:03	ivaraasen	$conditions Hell, Norway
17:03	lazybot	Last Updated on September 7, 4:55 PM EDT; Scattered Clouds; Dewpoint: 61 F (16 C); Precipitation today: 0.00 in (0 mm); Temperature: 80.3 F (26.8 C); Windchill: NA; Wind speed: 0.0mph; Wind gust: 5.0mph; URL: http://www.wunderground.com/US/MI/Hell.html.
17:03	cemerick	oh, there we go :-P
17:03	Raynes	cemerick: That didn't do what you thought it did.
17:03	hyPiRion	What, that can't be true
17:03	ivaraasen	wrong Hell :(
17:03	hyPiRion	ivaraasen: yeah, I wondered.
17:03	hyPiRion	$conditions Trondheim
17:03	lazybot	Last Updated on September 7, 10:50 PM CEST; Mostly Cloudy; Dewpoint: 41 F (5 C); Precipitation today: 0.00 in (0.0 mm); Temperature: 46 F (8 C); Windchill: 41 F (5 C); Wind speed: 12mph; Wind gust: 0mph; URL: http://www.wunderground.com/global/stations/01271.html.
17:04	tanzoniteblack	,(println "$conditions Palo Alto, CA")
17:04	clojurebot	$conditions Palo Alto, CA
17:04	lazybot	Location not found.
17:04	cemerick	Raynes: bummer.
17:04	Raynes	I don't think I ever fixed space handling in the weather plugtin
17:04	Raynes	It is probably looking for Alto, CA
17:04	tanzoniteblack	Raynes: that would explain why there's no Palo Alto, though I was really just curious if I could feed things from one bot to the other
17:05	ivaraasen	hyPiRion: pretty bad weather in Trondheim lately, but at least it's quite warm
17:05	Raynes	You can, but you can't really get them in a loop.
17:06	tanzoniteblack	,(println "$(println \",(println $conditions 94303)\")")
17:06	clojurebot	$(println ",(println $conditions 94303)")
17:06	tanzoniteblack	this is probably a good thing
17:07	Raynes	That didn't work because you used $ rather than &
17:07	tanzoniteblack	,(println "&(println \",(println $conditions 94303)\")")
17:07	clojurebot	&(println ",(println $conditions 94303)")
17:07	lazybot	⇒ ,(println $conditions 94303) nil
17:08	Raynes	That's as far as you can get.
17:08	hyPiRion	ivaraasen: yeah, it's still hot enough to not be horrible
17:11	duck11232	We just need a new bot that parses ⇒ as it's input character
17:11	tanzoniteblack	duck11232: I can only see that ending badly
17:12	shadowh511	yo, i'm having trouble with this basic clojure IRC bot
17:12	shadowh511	i found this sample: http://nakkaya.com/2010/02/10/a-simple-clojure-irc-client/
17:12	shadowh511	and I am wondering how to make it wait for and respond to commands
17:14	arohner	,((fn [] (println ",(println \"foo\")")))
17:14	clojurebot	,(println "foo")
17:15	arohner	,((fn [] (println "&(println \"foo\")")))
17:15	clojurebot	&(println "foo")
17:15	lazybot	⇒ foo nil
17:15	arohner	sounds like you can get them to loop, using fns
17:15	arohner	ah, no, because of the =>
17:15	muhoo	bot torture!
17:16	antares_	shadowh511: you can see more or less that happening in conn-handler, now generalize it (extracting a function for command identification and another one for each command is a good idea, too)
17:17	aperiodic	darn lazybot replacing newlines with whitespace
17:18	shadowh511	antares_: oh, I get it, it's in the let binding
17:18	tanzoniteblack	&(println (str \newline ",(println "gotcha")))
17:18	lazybot	java.lang.RuntimeException: EOF while reading string
17:19	tanzoniteblack	&(println (str \newline ",(println \"gotcha\")"))
17:19	lazybot	⇒ ,(println "gotcha") nil
17:19	aperiodic	tanzoniteblack: it probably does a `with-out-str` and does the newline replacement in that, which seems foolproof to me
17:20	tanzoniteblack	&(doc with-out-str)
17:20	lazybot	⇒ "Macro ([& body]); Evaluates exprs in a context in which out is bound to a fresh StringWriter. Returns the string created by any nested printing calls."
17:25	aperiodic	and now people would probably figure out what i'm up to if i tried to add inline evaluation to clojurebot :(
17:35	shadowh511	aperiodic: do you have the source code publically available?
17:35	Sgeo	##(+ 1 1)
17:35	lazybot	⇒ 2
17:36	Sgeo	&(println (str \backspace))
17:36	lazybot	⇒ nil
17:36	Sgeo	&(println (str \backspace \backspace \backspace \backspace))
17:36	lazybot	⇒ nil
17:36	dnolen	heh
17:36	dnolen	CLJS reveals a funny bug in CLJ
17:36	dnolen	,(case 'quote 'a :foo :bar)
17:36	clojurebot	:foo
17:36	metellus	&(println (str "abcde" \backspace \backspace \backspace \backspace))
17:36	lazybot	⇒ abcde nil
17:37	jkdufair	how would i access both the entire request and route params from a compojure route definition?
17:37	Sgeo	,(println (str "abcde" \backspace \backspace \backspace \backspace))
17:37	clojurebot	abcde
17:38	dnolen	actually I guess not given the description of case, since the tests are literals.
17:38	Sgeo	(Not helpful just I'm curious
17:40	Sgeo	Oh now I know what periodic meant by inline evaluation: The ## thing
17:41	aperiodic	$google clojurebot source code
17:41	lazybot	[hiredman/clojurebot · GitHub] https://github.com/hiredman/clojurebot
17:41	aperiodic	shadowh511: ^
17:44	xeqi_	jkdufair: (GET "/" request ...) would bind the entire request to request https://github.com/weavejester/compojure/wiki/Destructuring-Syntax
17:44	aperiodic	lol, apparently clojurebot is hardcoded to not eval messages from certain nicks
17:45	tanzoniteblack	itistoday: where do you see that?
17:45	itistoday	,(println "clojurebot, y u no listen to me??")
17:45	clojurebot	itistoday: Pardon?
17:47	Sgeo	,(println "clojurebot, y u listen to me??")
17:47	clojurebot	clojurebot, y u listen to me??
17:47	lazybot	clojurebot: Uh, no. Why would you even ask?
17:47	clojurebot	excusez-moi
17:47	Sgeo	Woah
17:47	aperiodic	tanzoniteblack: bottom of src/hiredman/clojurebot/sb.clj
17:48	antares_	can someone point me to that Simplicity/Freedom to focus/Empowerment diagram? I need it for a talk I am giving
17:49	tanzoniteblack	aperiodic: thanks
17:54	jkdufair	xeqi: that's what i'm doing now to get the entire request. what i'd also like is, i.e. (GET "/foo/:bar" ...) and bind somehow to get bar and request. perhaps it would be {foo :foo :as request} ?
17:57	xeqi	jkdufair: (GET "/" {{:keys [bar]} :params :as request} ...) maybe
17:58	jkdufair	i'll try. thx.
17:58	dslsd	I have a collection: [["foo" "bar"] ["foo" "baz"] ["bar" "qux"]] and I want {:foo ["bar" "baz"], :bar "qux"}
17:59	jkdufair	xeqi: that did it. thank you!
17:59	dslsd	ive been in imperative land for too long and im struggling to think of how to accomplish the above functionally
18:04	Sgeo	Related question: Does loop/recur count as functionally?
18:04	Sgeo	Although I do see a functional way to do it, I ... think
18:05	dslsd	im going to say no to loop/recur
18:05	Sgeo	dslsd, please note that I'm not a Clojure expert, so am trying to solve your problem with that limitation in mind
18:05	dslsd	just to spite you
18:05	jkdufair	dslsd: you should be able to use reduce i think
18:05	Chousuke	dslsd: sounds like you need something like group-by but not quite
18:05	dslsd	Chousuke: exactly
18:05	Sgeo	,(reduce {} (fn [acc vec] (assoc acc (first vec) (nth vec 1)))
18:05	clojurebot	#<ExecutionException java.util.concurrent.ExecutionException: java.lang.RuntimeException: EOF while reading>
18:05	Sgeo	,(reduce {} (fn [acc vec] (assoc acc (first vec) (nth vec 1))))
18:05	clojurebot	#<IllegalArgumentException java.lang.IllegalArgumentException: Don't know how to create ISeq from: sandbox$eval51$fn__52>
18:06	Sgeo	,(doc reduce)
18:06	clojurebot	"([f coll] [f val coll]); f should be a function of 2 arguments. If val is not supplied, returns the result of applying f to the first 2 items in coll, then applying f to that result and the 3rd item, etc. If coll contains no items, f must accept no arguments as well, and reduce returns the result of calling f with no arguments. If coll has only 1 item, it is returned and f is not called. If val i...
18:07	Sgeo	,(reduce (fn [acc vec] (assoc acc (first vec) (nth vec 1))) {} [["foo" "bar"] ["foo" "baz"] ["bar" "qux"]])
18:07	clojurebot	{"bar" "qux", "foo" "baz"}
18:07	nz-	,(group-by first [["foo" "bar"] ["foo" "baz"] ["bar" "qux"]])
18:08	clojurebot	{"foo" [["foo" "bar"] ["foo" "baz"]], "bar" [["bar" "qux"]]}
18:09	Sgeo	Is it generally considered acceptable to write out an fn like that that's tailored for use with reduce?
18:11	dansalmo	joy, I figured out my first regex
18:11	dansalmo	, (clojure.string/split "--(--)4*234/-/1-/1" #"(?<=[^-()])-" 2)
18:11	clojurebot	["--(--)4*234/" "/1-/1"]
18:11	Sgeo	On a related note, is there a nice parser combinator library for Clojure?
18:11	dansalmo	but I would like not to swallow the -
18:13	Chousuke	(reduce (fn [m [a b]] (let [item (m a [])] (assoc m a (conj item b)))) {} '[[foo bar] [foo zonk] [bar foo]])
18:13	Chousuke	,(reduce (fn [m [a b]] (let [item (m a [])] (assoc m a (conj item b)))) {} '[[foo bar] [foo zonk] [bar foo]])
18:13	clojurebot	{bar [foo], foo [bar zonk]}
18:15	Sgeo	Hmm http://brehaut.net/blog/2011/fnparse_introduction
18:15	Sgeo	It doesn't particularly look maintained though
18:15	Chousuke	dslsd: See above. It's way easier to write if you don't treat the one-item case specially
18:15	Chousuke	special cases are icky :P
18:16	dslsd	thanks Chousuke
18:16	dslsd	(reduce (fn [m [a b]] (let [item (m a [])] │ altivec
18:16	dslsd	\| (assoc m a (conj item b)))) {} '[[foo bar] [foo │ amalloy_
18:16	dslsd	oops, sorry
18:17	Sgeo	Not only is the function to do the transform easier to implement without a one-item case, it means code that uses the result doesn't need to think about it
18:17	xeqi	Raynes: I think its broke again
18:17	xeqi	$findfn 3 4 7
18:17	lazybot	java.lang.ClassCastException: clojure.lang.PersistentStructMap$Def cannot be cast to clojure.lang.IFn
18:17	Chousuke	yeah. special cases leak out :P
18:17	Sgeo	I think maybe Haskell would be good for hammering this into people's heads
18:17	Chousuke	if you have a special case somewhere down the stack it will spread everywhere
18:18	dansalmo	Is there a way to get ["----/" "-/"] from (clojure.string/split "----/-/" #"(?<=[^-])-" 2)? without having to add the "-" back the second result?
18:18	dansalmo	, (clojure.string/split "----/-/" #"(?<=[^-])-" 2)
18:18	clojurebot	["----/" "/"]
18:20	xeqi	Raynes: looks like eval too ##(+ 1 2)
18:20	lazybot	java.lang.ClassCastException: clojure.lang.PersistentStructMap$Def cannot be cast to clojure.lang.IFn
18:21	xeqi	,(clojure.string/split "---/-/" #"/")
18:21	clojurebot	["---" "-"]
18:21	xeqi	ah, right
18:22	pbostrom	,(reduce (fn [m [k v]] (update-in m [(keyword k)] conj v)) {} [["foo" "bar"] ["foo" "baz"] ["bar" "qux"]])
18:22	clojurebot	{:bar ("qux"), :foo ("baz" "bar")}
18:23	pbostrom	dslsd: ^ lists, but not vectors
18:25	dslsd	Chousuke: that's really cool -- that ({} :key []) thingamajig
18:25	dslsd	i didn't know you could get a sort of not-found by doing that
18:25	dslsd	pbostrom: cool thanks
18:26	Chousuke	dslsd: it's a kind of a hidden-in-plain-sight feature :P
18:26	xeqi	dansalmo: do you want to split after "/"s ?
18:27	Chousuke	,(:foo 'bar 1)
18:27	clojurebot	1
18:27	dslsd	Chousuke: thanks that's interesting
18:27	Chousuke	works that way too, even if your input is not actually associative.
18:27	Sgeo	Chousuke, hmm, I don't see what dslsd is looking at
18:27	Sgeo	Oh
18:27	dslsd	Chousuke: where the hell is that documented?
18:27	Chousuke	I have no idea.
18:28	Chousuke	probably on the clojure website
18:28	dslsd	Chousuke: are there any other magical "oh btw this thing is also a function" things?
18:28	Chousuke	maps, sets, vectors, symbols and keywords are all functions
18:29	dslsd	,({} '() [])
18:29	clojurebot	[]
18:30	Chousuke	,('[a b c] 2)
18:30	clojurebot	c
18:31	dslsd	,(let [rocket-to-the-sun (->(*))] rocket-to-the-sun)
18:31	clojurebot	1
18:31	Chousuke	the other way around unfortunately can't work :P
18:31	Sgeo	,(macroexpand-1 '(->(*)))
18:31	clojurebot	(*)
18:32	cemerick	weavejester: I wonder if you'd be open to splitting up the predicates in valip so that some subset would be cljs-safe?
18:32	Chousuke	while we're on the topic of non-obvious features...
18:32	cemerick	Or, just keeping the cljs-safe ones in a separate namespace, and immigrating them into valip.predicates, I suppose.
18:32	Chousuke	,(meta '^:bar [a b c])
18:32	clojurebot	{:bar true}
18:33	weavejester	weavejester: I haven't worked on valip for a while, though I may be looking at it again soon.
18:33	weavejester	But I'm not sure about sharing namespaces between cljs and clj
18:33	Chousuke	,(meta ^:bar [a b c])
18:33	clojurebot	#<CompilerException java.lang.RuntimeException: Unable to resolve symbol: a in this context, compiling:(NO_SOURCE_PATH:0)>
18:33	Chousuke	,(meta ^:bar '[a b c])
18:33	clojurebot	nil
18:33	Chousuke	can you tell why that is? :P
18:33	Chousuke	(pop quiz!)
18:33	cemerick	weavejester: I've actually had some good luck doing so so far. shrug
18:34	cemerick	I'll fork for now and you can see if you like what comes out of the other end when you get around to it :-)
18:34	thorbjornDX	can anyone recommend "Functional Programming for the Object-Oriented Programmer"?
18:34	weavejester	cemerick: Sure thing :)
18:40	Sgeo	I should try to implement that search across an infinite space thing I saw once
18:42	aperiodic	Chousuke: does it attach the metadata to the (quote [a b c]) form, which gets evaluated before it's passed to meta?
18:42	Chousuke	aperiodic: yeah.
18:43	aperiodic	Chousuke: what's going on with '^:bar [a b c]?
18:43	Chousuke	aperiodic: the metadata goes on the list in the quote form, whereas in the former example it goes on the vector, and the vector is what exists when meta is called.
18:44	Chousuke	aperiodic: it's just (quote ^:bar [a b c])
18:44	Chousuke	since ^ is a read time operation it needs to be that way around.
18:45	aperiodic	ah, right, because ^:bar isn't a form
18:45	Chousuke	right. it's just reader magic :P
18:46	Sgeo	If reader magic is acceptable here is reader magic unacceptable for a features mechanism?
18:47	Chousuke	what sort of features mechanism?
18:47	Chousuke	if you're looking for a way to make code portable between different clojure implementations, then you should know that that is an explicit non-goal :P
18:47	Sgeo	Chousuke, as in, a way to choose a form to read in based on which implementation of Clojure
18:47	Sgeo	Oh :(
18:48	Sgeo	Why?
18:48	clojurebot	http://clojure.org/rationale
18:48	Chousuke	I guess you can sort of do it with read-time evaluation? maybe
18:48	technomancy	Chousuke: an explicit non-goal for application code
18:49	technomancy	there's a thread about adding a features mechanism; it's not out of the question
18:49	Chousuke	I suppose it's not a bad idea for libraries
18:49	Sgeo	Common Lisp the language has no standard way to do threads or networking. Yet, various implementations have implementation specific threading and networking. There exist libraries that smooth over these to provide cross-implementation threading and networking
18:57	cemerick	Chousuke: portability is turning out to be less of a headache than I expected.
18:57	cemerick	Within reason, of course; interop-heavy stuff doesn't work well.
18:57	cemerick	s/work well/port easily
18:59	casion	can you lazily read from an input-stream using (with-open)?
19:05	hyPiRion	casion: if you use read, you can
19:05	hyPiRion	(repeatedly 3 read) - for instance.
19:07	casion	hyPiRion: ahhh. I keep getting java.io and clojure.java.io mixed up. I tried with .read and it wasn't working
19:08	casion	I guess (memfn read) would have worked (and been silly) though
19:12	casion	hyPiRion: (read) only works with PushBackReaders, I'm using input-stream
19:13	casion	or java.io.InputStream as it is
19:14	Hodapp	blugh, I hate trying to get vim to do anything with plugins
19:15	hyPiRion	casion: (repeatedly #(read-function-here stream)) should work fine
19:15	Hodapp	:he vimclojure just does nothing
19:15	hyPiRion	though lazy reading is kind of scary if you have multiple readers.
19:16	casion	hyPiRion: I get 'IOException Stream closed' when I try that
19:16	casion	I suspect because with-open closes the stream?
19:16	hyPiRion	casion: yeah - you have to force the reads within a with-open, otherwise you're out of luck
19:17	babilen	Hodapp: Just use a reasonable plugin manager such as vim-addon-manager, vundle or (meh) pathogen
19:17	casion	alright then, guess I have to rework how I'm thinking about this
19:17	casion	thanks
19:17	Hodapp	babilen: I'm trying to use pathogen. Things are silently failing.
19:18	hyPiRion	casion: Do you have to lazily read though? Can't you just eagerly read?
19:18	babilen	Hodapp: pathogen would be my third choice, but this is rather a dicussion for #vim than #clojure I guess.
19:18	Sgeo	casion, try to avoid lazy streams of IO requiring stuff
19:18	casion	hyPiRion: files can be, and are often, very large
19:19	Hodapp	babilen: I'm just following instructions for lein-tarsier...
19:19	casion	avg 4gb, often exceeding 10gb
19:19	Sgeo	casion, the Haskell community has come to view such things with distrust. The function in Haskell that enables it is called unsafeInterleaveIO, and it's called unsafe for a reason.
19:19	hyPiRion	casion: https://github.com/richhickey/clojure-contrib/blob/061f3d5b45657a89faa335ffa2bb80819f2e6918/src/main/clojure/clojure/contrib/duck_streams.clj#L235
19:19	Hodapp	okay, :ClojureRepl is working but :he vimclojure does nothing, that is annoying
19:19	casion	Is there another way to 'safely' handle large files then?
19:20	casion	hyPiRion: I need a stream, not a reader
19:20	technomancy	casion: you just have to find the right place for with-open
19:20	casion	unless I want to split the chars myself I guess
19:22	babilen	Hodapp: It's probably due to the fact that pathogen "forgets" to generate the helptags (or you forget it) -- IIRC it is :Helptags from pathogen. I would still strongly recommend to take a look at the other two though.
19:22	casion	actually, if I set encoding to UTF-8, I can read bytes with a reader then right?
19:22	Sgeo	I guess see if there's an Iteratee-like thing for Clojure?
19:22	Sgeo	Or Conduit-like
19:23	Hodapp	babilen: any recommendations between vim-addon-manager and vundle?
19:23	technomancy	babilen: do you know of any existing convention for a declarative alternative to Debian's update-java-alternatives?
19:23	Hodapp	most ofthese tools I only want to learn far enough that they get out of the way and let me do WTF I was going to do in the first place
19:23	babilen	Hodapp: I happily use v-a-m, but both are good.
19:23	technomancy	something appropriate for a config file that's included with an application
19:25	babilen	technomancy: Not really -- But you could just call whatever binary you want to call directly, can't you? I mean the paths are known and the alternatives system just manages symlinks to them.
19:25	casion	hah! that worked great. (reader "" :encoding "UTF-8") with line-seq to read a byte-stream
19:26	technomancy	babilen: no, it needs to be declarative since it's just read by the build process out of an application's source repo
19:26	technomancy	babilen: we will probably end up inventing our own convention, which I hate to do =(
19:26	technomancy	but we couldn't find any prior art
19:28	Hodapp	gah, finding vim-addon-manager installation to be... confusing
19:32	thorbjornDX	Hodapp: do you know about pathogen.vim?
19:33	thorbjornDX	Hodapp: https://github.com/tpope/vim-pathogen
19:33	babilen	(full circle)
19:33	Hodapp	ugh.
19:34	thorbjornDX	Hodapp: ah, sorry. Just saw the latest question
19:35	Hodapp	without knowing much about vim, I can hardly make heads or tails of the v-a-m installation instructions
19:39	Urthwhyte	Don't se pathogen
19:39	Urthwhyte	Vundle is much nicer
19:40	thorbjornDX	Urthwhyte: what don't you like about pathogen?
19:40	Hodapp	uggggggggh
19:40	XPherior	Evening, people.
19:41	Urthwhyte	Makes it wicked hard to just sync dtfiles across machines
19:41	thorbjornDX	Urthwhyte: how about pathogen + git + git submodules?
19:42	Hodapp	vim-addon-manager is making it wicked hard to comprehend WTF their installation documentation means.
19:42	Urthwhyte	Please excuse the typos, wifi latency is in the many seconds right now :(
19:42	thorbjornDX	Urthwhyte: No problem.
19:43	Urthwhyte	Because why complicate what could just be a single file sync?
19:44	thorbjornDX	Urthwhyte: I tend to hack on both my vimrc and the code in the submodules, so I like to have them source controlled
19:46	Urthwhyte	I avoid vimscript as much as possible
19:46	Urthwhyte	but I also have a very minimal vimrc
19:47	Urthwhyte	PRetty much just the bare minimum for working with whatever language I'm currently big into
19:47	Hodapp	that's all I'm trying to set up
19:49	Urthwhyte	I haven't actually worked out how to get the standard clojure stuff into vim, since all I've ben doing is 4clojure problems
19:52	Frozenlock	Friday evening on #clojure, let's party!
19:53	Sgeo	I'm having too much fun with awtbot
19:53	shaungilchrist	been partying hard since 3am last night. couldn't sleep so started working on edn parser for node.. you know because of because.
19:55	duck1123	I haven't gotten around to reading the spec just yet, keywords are still supported, right? Namespaced keywords?
19:55	shaungilchrist	totally
19:55	duck1123	I'm wondering if I can specify that Ciste's config format is just edn
19:56	technomancy	it's just an attempt to trick non-clojure-users into using the reader
19:57	duck1123	well, if it's going to be used as a data format anyway. Why not specify it apart from clojure
20:00	Frozenlock	Cmon guys, no need, we have json
20:00	thorbjornDX	Frozenlock: can't forget XML
20:01	duck1123	json puts colons in the wrong place and it's too picky about commas
20:01	Frozenlock	Oh right, we have xml!
20:02	S11001001	json in yaml in xml in s-exps
20:02	duck1123	csv?
20:02	Frozenlock	tsv, csv is for noob
20:03	Frozenlock	S11001001: s-exps aren't that bad
20:04	technomancy	whatever; I'm still using application/clojure as my mime type
20:04	shaungilchrist	I am going the other way and writing my code in csv and marshalling that to edn and then passing it to clojure
20:05	shaungilchrist	that way I can use excel macros to truly unleash the power
20:05	Frozenlock	https://sites.google.com/site/steveyegge2/the-emacs-problem
20:05	Frozenlock	shaungilchrist: You've won with the excel macros.
20:05	duck1123	has anyone ever tried encoding clojure code as xml? Second question: have they been shot?
20:06	shaungilchrist	I am sure adobe is working on that for flex4
20:07	thorbjornDX	I write my clojure code in powerpoint
20:07	shaungilchrist	every time I see thier </mediocrity> tag I almost lose my mind and drive off the road
20:09	duck1123	Years ago, I spent some time using a XForms/XSLT/XQuery/XPL system. It was XML all the way down. I'm sure everyone has things from their youth that they regret
20:09	Hodapp	shaungilchrist: </mediocrity>?
20:10	shaungilchrist	Hodapp: they really have a billboard w/ just a </mediocrity> tag as in "end your mediocre career and come work here slinging mad markups rockstar"
20:11	Hodapp	sigh.
20:11	technomancy	duck1123: https://code.google.com/p/xsharp/
20:12	shaungilchrist	if I were young again I'd totally deface it with an s-expression. that would show them.
20:14	duck1123	I'd probably add the open tag, just for symmetry.
20:16	xeqi	wonder if nrepl should change to using edn underneath
20:17	thorbjornDX	I just installed emacs, am I in for a good time? (vim-user)
20:17	xeqi	a world of pain, followed by acceptance, followed by a good time
20:17	xeqi	much like any new tool
20:17	Frozenlock	xeqi: Wasn't edn the description of clojure seqs?
20:18	thorbjornDX	I don't mind the non-modality of it so long as I'm just in the repl, but I can't bring myself to use the arrow keys when traversing my src
20:19	thorbjornDX	and C-n/p/b/f or w/e seem marginally worse than jkhl
20:19	aperiodic	you could always try evil-mode
20:19	thorbjornDX	</nitpicking>
20:19	duck1123	I can't remember the name, but there's a package that'll yell at yuou if you're arrowing around too much
20:19	thorbjornDX	aperiodic: this sounds like a whirlwind of pain, but I'll give it a shot
20:20	Frozenlock	no-easy-key
20:20	thorbjornDX	<M-x> package-install <CR> evil <CR>
20:22	technomancy	jkhl is awful in dvorak
20:23	thorbjornDX	technomancy: true, I tried prog dvorak a while back and couldn't make the switch because of vim
20:23	thorbjornDX	technomancy: if I was a nano slinger I would have been perfectly fine :(
20:23	hoover_damm	thorbjornDX, doubt it
20:24	hoover_damm	thorbjornDX, i've paired with nano coders... it's they feel awkward as heck in emacs
20:24	hoover_damm	thorbjornDX, when they cry out for vim is when you know they've had it.
20:24	aperiodic	i didn't have much trouble switching to programmer dvorak as a vim user
20:25	aperiodic	j and k are still right next to each other, in the same orientation
20:25	aperiodic	h and l i very rarely use
20:25	duck1123	I overheard some people talking about OSX's movement commands and was like, I know this! Emacs!
20:25	hoover_damm	aperiodic, I've been dealing with Unix since 1990 and started with vi
20:25	hoover_damm	aperiodic, I don't understand why people care so much
20:25	hoover_damm	emacs, vi, nano, ed
20:25	hoover_damm	it all works
20:25	cgag	vim just works best
20:25	hoover_damm	use what works best
20:26	hoover_damm	often that is personal so you shouldn't try and share that feeling with someone else
20:26	cgag	I'm trying to get korma to work with mysql, does anyone know if i'm doing anything obviously wrong here? https://www.refheap.com/paste/4932
20:26	thorbjornDX	I don't think I can force myself to use evil mode, I have a bit too much invested in my vimrc. I guess I can just use it as in interface to nrepl
20:27	shaungilchrist	I think thats enough for a day, I can now load datomic schemas/dtm files in node
20:28	shaungilchrist	I know the "easy" route would have been to go clojure script but I wanted something stand alone w/o the jvm deps
20:28	shaungilchrist	https://github.com/shaunxcode/jsedn if anyone wants to break it that would be cool
20:31	duck1123	shaungilchrist: add a bin that'll allow me to get-in among other things and that'll be cool
20:32	shaungilchrist	just like a simple repl that reads and prints edn forms?
20:33	duck1123	yeah, basically, That way if you want to extract a value from a edn file in a bash script or something, it'd be easy
20:35	duck1123	$ echo "{:foo 7}" \| jsedn -s :foo => 7
20:35	duck1123	not sure what args it would actually take
20:35	Sgeo	WTF
20:35	Sgeo	http://www.nsa.be/index.php/eng/Blog/Using-Jwt-yes-it-s-a-J-with-Clojure
20:36	Sgeo	The first create-listener macro defined on that page shouldn't work because the autogensym is outside of any quasiquote form
20:37	Sgeo	Oh "Update
20:37	Sgeo	With the Clojure bug mentioned above gone, and removing the unecessary gensym as it is outside the escaped code, the macro can be written:"
21:34	seancorfield	cgag: sorry, guess there's no korma users here at the moment...
21:37	cgag	seancorfield, i figured it out, it was putting quotes in places it shouldn't have, i just had to pass a :delimiters option somewhere to fix it
21:43	dansalmo	how to i get numeric value of char /0 as 0? not (int /0)?
21:43	dansalmo	, (int \0)
21:43	clojurebot	48
21:45	dansalmo	I hope it is not (read-string (str \0))
21:45	dansalmo	, (read-string (str \0))
21:45	clojurebot	0
21:46	dansalmo	is there a simpler way?
21:46	dansalmo	,(int (read-string (str \0)))
21:46	clojurebot	0
21:46	dansalmo	, (int (read-string (str \0)))
21:46	clojurebot	0
21:47	tmciver	dansalmo: do you want the character numbers to evaluate to their value? ##(- (int \1) (int \0))
21:47	lazybot	java.lang.ClassCastException: clojure.lang.PersistentStructMap$Def cannot be cast to clojure.lang.IFn
21:48	tmciver	,(- (int \1) (int \0))
21:48	clojurebot	1
21:48	dansalmo	yes
21:48	tmciver	dansalmo: just subtract 48 then.
21:48	tmciver	,(- (int \5) (int \0))
21:48	clojurebot	5
21:49	tmciver	,(map #(- (int %) (int \0)) "123456789")
21:49	clojurebot	(1 2 3 4 5 ...)
21:50	dansalmo	I want just one int like (int \0)
21:51	dansalmo	. ([ 1 2 3 4] (int \1))
21:51	dansalmo	, ([ 1 2 3 4] (int \1))
21:51	clojurebot	#<IndexOutOfBoundsException java.lang.IndexOutOfBoundsException>
21:51	mthvedt	woah what?
21:52	mthvedt	,([ 1 2 3 4] (int \1))
21:52	clojurebot	#<IndexOutOfBoundsException java.lang.IndexOutOfBoundsException>
21:52	tmciver	,(int \1)
21:52	clojurebot	49
21:53	tmciver	,({49 1 50 2} [(int \1) (int \2)])
21:53	clojurebot	nil
21:53	dansalmo	clojer gives easily the stuff you have to work for in other langs and make you work for the easy stuff
21:53	tmciver	,({49 1 50 2} (int \1))
21:53	clojurebot	1
21:53	mthvedt	how do vectors implement ifn
21:54	tmciver	mthvedt: they return the value at the index given as an arg.
21:54	tmciver	,([1 2 3 4] 1)
21:54	cgag	it's basically the same as nth isn't it?
21:54	clojurebot	2
21:55	mthvedt	so...
21:55	mthvedt	,([1 2 3 4] 1)
21:55	clojurebot	2
21:55	mthvedt	,([1 2 3 4] (int \1))
21:55	clojurebot	#<IndexOutOfBoundsException java.lang.IndexOutOfBoundsException>
21:55	mthvedt	,(int \1)
21:55	clojurebot	49
21:55	mthvedt	oh
21:55	mthvedt	that's boring
21:55	mthvedt	=/
21:56	mthvedt	i was hoping it would yield some interesting insights on the clojure language
22:01	dansalmo	it will for me :)
22:01	cgag	where does that actually get implemented in the clojure source? I think it kind of does
22:02	cgag	the way datastructures can implement the function protocol is an interesting insight imo
22:03	Sgeo	Does Eclipse have a thing for making Swing GUIs visually? Is that comfortable to use with Counterclockwise and Clojure?
22:03	dansalmo	, ([1 2 3 4] (read-string (str \1)))
22:03	clojurebot	2
22:04	dansalmo	is there no more direct way for char?
22:04	dansalmo	, ([1 2 3 4] \1)
22:04	clojurebot	#<IllegalArgumentException java.lang.IllegalArgumentException: Key must be integer>
22:04	Sgeo	So, doseq is a non-lazy for
22:04	tmciver	cgag: here's how vector implements IFn: https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/PersistentVector.java#L593
22:04	Sgeo	I don't know how to remember the difference between doall and dorun
22:05	Sgeo	doall is sequence and dorun is sequence_
22:06	tmciver	dansalmo: I would just subtract (int \0) from the chars you're interested in. Otherwise, you have to hard-code your 'vector of values'.
22:06	dansalmo	, ([1 2 3 4] (- (int \1) 48))
22:06	clojurebot	2
22:06	tmciver	dansalmo: actually, that's not terrible: ##([0 1 2 3 4 5 6 7 8 9] \3)
22:06	lazybot	java.lang.ClassCastException: clojure.lang.PersistentStructMap$Def cannot be cast to clojure.lang.IFn
22:07	tmciver	err
22:07	tmciver	,([0 1 2 3 4 5 6 7 8 9] \3)
22:07	clojurebot	#<IllegalArgumentException java.lang.IllegalArgumentException: Key must be integer>
22:07	tmciver	oh yeah, that won't work.
22:07	dansalmo	seems like there should be something better, but then when I run into these things, it means I am trying to do something the hard way.
22:09	cgag	Sgeo, doseq returns nil
22:09	Sgeo	Maybe doseq should be called dofor
22:10	cgag	dofor would be like calling (doall (for ....))
22:10	cgag	i've seen that macro in storm's source
22:18	dansalmo	, (Integer. (str \0))
22:18	clojurebot	0
22:18	dansalmo	, (Integer. \0)
22:18	clojurebot	#<IllegalArgumentException java.lang.IllegalArgumentException: No matching ctor found for class java.lang.Integer>
22:19	tmciver	dansalmo: works but that's terribly inefficient.
22:19	dansalmo	and more code than (- (int n) 48) :)
22:20	tmciver	and not very idiomatic either.
22:22	dansalmo	I am just astonished that there is not something simpler that is findable in docs
22:24	tmciver	dansalmo: I think it is rather succinct. If you want something simpler, just create a function to do that for you.
22:25	dansalmo	, (let [int-c (fn [x] (- (int x) 48))] (int-c \0))
22:25	clojurebot	0
22:26	dansalmo	that'l do
22:27	Sgeo	,(let [int-c (comp (partial + -48) int)] (int-c \0))
22:27	clojurebot	0
22:29	Sgeo	,(letfn [(int-c [x] (- (int x) 48))] (int-c \0))
22:29	clojurebot	0
22:29	dansalmo	:tmciver, thanks for your help, I was able to clean it up without the fn.
22:29	tmciver	dansalmo: np
22:30	Sgeo	Is my pointless version a bit too... err, pointless?
22:31	dansalmo	I right clojure code at about 1 line per hour. Re-writes go a little faster though.
22:32	tmciver	Sgeo: it's never pointless when you get to use comp and partial together. :)
22:32	dansalmo	I spell bad to.
22:33	tmciver	dansalmo: you mean 'too'. ;)
22:33	dansalmo	If I were going to use the fn, I would use yours for sure. ;)
22:33	dansalmo	Took too much effort to fix speel.
22:33	dansalmo	none left over for grammer
22:38	Sgeo	Clojure doesn't have a built-in flip, does it?
22:39	tmciver	Sgeo: what's flip? Swap?
22:40	Sgeo	Definable as (defn flip [f] (fn [arg1 arg2 & args] (apply f arg2 arg1 args)))
22:40	Sgeo	,(doc swap)
22:40	clojurebot	I don't understand.
22:41	tmciver	what does that do? It just looks like apply.
22:41	tmciver	Oh I see.
22:41	duck1123	reverses the 1st 2 args
22:41	Sgeo	tmciver, (flip f) returns a function that acts like f except with the first two arguments reversed
22:44	duck1123	I think the idea is, if all the libs are designed right, you should rarely need something like that, and when you do, #(f %2 %1)
22:44	dysinger	is there a shortcut to install a (missing) jar in the local repo like 'mvn install-file' ?
22:44	Sgeo	Instead of writing (partial + -48), with flip I could write (partial (flip -) 48)
22:44	dysinger	(for leiningen)
22:45	yankov	is there analogue of .indexOf for sorted-map/
22:45	duck1123	dysinger: I think install:install-file is it
23:08	riley526	Can anyone recommend their preferred Markdown library for Clojure?
23:09	dslsd	riley526: https://github.com/yogthos/markdown-clj
23:10	riley526	dslsd: Cool, thanks. I'll check it out.
23:11	dslsd	It's under active development which is the more important part in my opinion.
23:25	cemerick	Anyone know why ClojureScript requires a vector for e.g. :refer in require forms? Seems like a silly point on which to be strict on, and just one more stumbling block for clj/cljs portability…
23:26	hiredman	cemerick: a vector is clearly the correct choice
23:26	cemerick	hiredman: I'll just assume that's sarcasm. :-P
23:27	hiredman	look, the things you refering are all peers, so if you newline them each they should indent as a column one on top of each other
23:28	hiredman	where, because lists are typically function calls, lists usually indent differently
23:28	hiredman	sarcasm?
23:28	hiredman	me?
23:30	cemerick	never, I know
23:30	cemerick	parens in that position seem to be far more common, for the good reason that they stand out among the always-vectored libspecs
23:30	cemerick	Besides, editor peculiarities should stay out of language issues.
23:31	cemerick	Anyway, it's a gratuitous difference.
23:31	Sgeo	I think it's a popular opinion of the meaning of a literal vector in syntax vs a literal list
23:31	hiredman	I have a 34888 lines of clojure code here where it is always vectors
23:31	Sgeo	Rather than an editor concept
23:32	cemerick	Ah-ha, see, I've over 50K lines where it's always lists.
23:32	Sgeo	Lists look like function calls, so the first item should be important in some way
23:32	hiredman	~guards
23:32	clojurebot	SEIZE HIM!
23:32	Sgeo	If all the items are roughly the same importance-wise, a vector makes sense
23:34	cemerick	Sgeo: sorry, lists within libspecs have a long history, e.g. http://clojure.org/libs
23:34	cemerick	Probably from the repeated use of "list" in `refer`. http://clojure.github.com/clojure/clojure.core-api.html#clojure.core/refer
23:36	Sgeo	cemerick, in the line (require '(clojure.contrib def except sql))
23:36	Sgeo	?
23:37	Sgeo	In that case, the first item is significant, because it signifies the namespace those other things are found in
23:37	cemerick	Sgeo: No, talking about :only on the lib page
23:37	Sgeo	hmm
23:39	cemerick	Function position is "significant". When used to just denote a list (i.e. not a function calls or special forms), parens don't indicate anything about the first element.
23:39	cemerick	'(see — like this)
23:40	Sgeo	Yes, at a language level, but at a level of common conventions is what I'm referring to
23:41	cemerick	The language level is the only one where the first element of a list denotes anything significant.
23:41	cemerick	Beyond that, it's just people fuzzing because they see parens. :-)
23:52	duck1123	ahh, got a big chunk of my unpushed code all pushed to github and clojars
23:54	duck1123	I just ran "rm -rf ~/.m2/repository; lein midje" now we wait
23:55	duck1123	and it fails on bouncycastle. grumble