#clojure – 2014-08-24

2014-08-24

00:27	zeebrah	is there any plans for a standard document for clojure?
00:35	andyf	zeebrah: You mean like the Common Lisp HyperSpec and/or standards document? I don't think so
00:36	zeebrah	andyf: or like C99 yep
00:38	andyf	Like most recent languages I can think of other than JavaScript, it is defined by its doc strings and implementation
00:48	zeebrah	andyf: yeah but you'd rather be in the C/Java/Scheme/CL camp than Ruby/bf/etc in terms of being a legitimate language with a standard imho
00:49	andyf	Examples where I'd think it is in good company: Perl, Python, Go, and yes even Ruby
00:50	andyf	The main reason for standards are if you have multiple implementations and you want programs to work on all of them that conform to standard
00:54	zeebrah	i'm not sure the company of perl and ruby inspire confidence though
00:54	andyf	Because?
00:56	zeebrah	if there was a standard you could have multiple competing implementations with different strengths and weaknesses
00:57	andyf	You can have that without a standard
00:58	zeebrah	not really though because you have to make choices based on implementation quirks
00:58	andyf	Python and Ruby have several implementations
01:01	andyf	But I guess I don't really see multiple competing implementations as an advantage, if the main one is open source and works well enough
01:05	zeebrah	im sure there are a lot of advantages, better performance, correctness, more use cases where one impl is better suited than another one, etc
01:06	zeebrah	you can rest on your laurels less like python did with the GIL thing all those years
01:06	zeebrah	documentation and understand how your code will behave for users too
01:07	aravindh	Hello! Why does (= [1 2 3] (sorted-set 1 2 3)) return false?
01:07	andyf	Sets are never equal to vectors in Clojure
01:08	andyf	You would get true if you wrapped seq call around sorted-set exit
01:08	andyf	Replace "exit" with "expr" there
01:09	aravindh	@andy - thanks, got it
01:09	zeebrah	andyf: you can't really say 'never equal to vectors in clojure' without having a standard either :P that could change in the next release hah
01:10	mthvedt	zeebrah: the behavior of collection equality comes over from the java standard
01:11	zeebrah	mthvedt: not really the point
01:11	mthvedt	zeebrah: the point is there’s a ‘standard’, if implicit
01:12	andyf	zeebrah: I can say it if I qualify with "in any Clojure version releases so far, up to 1.6". But I understand your point.
07:46	razum2um	hi folks, could be a newbie q, but why cannot I get a full stacktrace with my lines of code? https://gist.github.com/razum2um/497e677f44e9e693688c
07:50	razum2um	oh, nevermind, just wonder why default depth of stacktrace is 12
07:51	pyrtsa	(doc pst)
07:51	clojurebot	"([] [e-or-depth] [e depth]); Prints a stack trace of the exception, to the depth requested. If none supplied, uses the root cause of the most recent repl exception (*e), and a depth of 12."
07:51	pyrtsa	razum2um: That's why. ^
07:52	razum2um	pyrtsa: yep, thx but I think in lot of cases it's too small default
07:53	pyrtsa	AFAICT, pst was intended to be used manually on the REPL so if it isn't long enough for you, just give another number. Otherwise, you can always dig out the full stack trace from the exception yourself. :)
08:04	razum2um	btw, is there an automatic way to start a repl in a repl? and subsequently - rescue all the expections and start a repl it that context (i.e. get the best debugger ever thought) ?
08:10	razum2um	found (clojure.main/repl) will try to use technique like in tools.trace to redefine all functions in a ns
08:10	razum2um	just wonder if such attempt exist
08:13	justin_smith	razum2um: there is ritz, which kind of fits that bill. But in my experience better than the best debugger is to write stateless functions and verify their behavior with the sort of input and output they will get. Exceptions should be for things that are out of your control at runtime (user or hardware problems), and not for buggy code
08:15	razum2um	justin_smith: it's a beautiful theory. i'm importing db records and some of them fail importing, besides, this code is not mine, but inherited, i need to dig in why it's happening on some rear data
08:16	justin_smith	razum2um: maybe you want preconditions or assertions on your importing function
08:16	razum2um	i need some kind of rescue + break
08:16	justin_smith	that's what (try ... (catch ...)) is for
08:17	justin_smith	if it's an exception you think you can work around
08:17	razum2um	yep, doing so, but ideally want to have smth like tools.trace to redefine functions and automatically doing so
08:18	justin_smith	I think technomancy 's robert-hooke library can do that. https://github.com/technomancy/robert-hooke/
08:19	justin_smith	but do you really have that many different functions you need to wrap in try blocks?
08:19	razum2um	yep, saw this, but didnt think is this context, thanks!
08:21	razum2um	currently my data has changed dramatically and failures are happening in many places at random rows, besides some attempts took 5min to reach the point of failure
08:22	razum2um	just tired of this start->inject try->restart process
08:23	justin_smith	razum2um: another technique I like is (def failures (atom [])) ... and then inside the function (try .... (catch Exception e (swap! failures conj args))) - then inside the repl, make unit tests or assertions based on the the data that provokes errors
08:24	razum2um	justin_smith: good idea, remembers me of let it fail :)
08:24	justin_smith	and if not doing so already, you need to be doing all this in a repl for this to work of course
08:24	razum2um	btw, inside (clojure.main/repl) how to access the parent binding?
08:24	justin_smith	parent binding?
08:25	razum2um	(catch Exception e (clojure.main/repl))))
08:25	razum2um	how to access locals in this function
08:25	justin_smith	I don't think that will let you access locals from inside the form that launched it
08:25	justin_smith	it's not meant to do so
08:26	razum2um	can i pass binding manyally?
08:26	justin_smith	razum2um: you could use something like my above failures atom trick to pass the locals up to the namespace level
08:28	razum2um	hm :\| sounds like ugly trick in this context
08:29	justin_smith	razum2um: it seems like you want recoverable conditions like common lisp has. This isn't really a clojure feature, and I suspect any emulation of it will be an ugly trick.
09:51	razum2um1	justin_smith: yeah, found this - https://github.com/GeorgeJahad/debug-repl
10:45	Chousuke	spwa tampere population density
10:45	Chousuke	oops.
12:13	luxbock	when using cider-stacktrace, cider-stacktrace-jump works in clojure.core files, i.e. it pops up the buffer with the relevant source and line number, but for some reason it's not working with my own source files
12:14	luxbock	do others have this same problem and is there a solution to it? I quite like the new stacktrace mode
12:15	justin_smith	you may want to ask on #clojure-emacs - I think that should work with your own namespaces in cider
13:01	annapawlicka	Does anyone have any esperience with accessing Clojars data feeds? (https://github.com/ato/clojars-web/wiki/Data) I'm seeing Access-Control-Allow-Origin error on my GET requests, no matter whether I request json or jsonp or the default.
13:33	shekibobo	anyone in here use expectations for testing?
13:36	shekibobo	I'm trying to get my first test set up, but don't understand this error:
13:36	shekibobo	Error refreshing environment: java.io.FileNotFoundException: Could not locate test/myproject/core__init.class or test/myproject/core.clj on classpath:
13:37	shekibobo	using lein-autoexpect
13:39	shekibobo	test file is in /test/myproject/core.clj
14:11	gfredericks	shekibobo: what command do you use to start that?
14:12	gfredericks	my guess is that you or something is prepending 'test' to a namespace name
14:13	justin_smith	shekibobo: do your core ns and your core test ns have the same relative path?
14:13	justin_smith	because it looks like they would
14:13	justin_smith	and that breaks thing
14:13	shekibobo	I actually switched to speclj
14:14	shekibobo	that got things working
14:14	shekibobo	but they probably did
14:14	justin_smith	just saying, if you have src/myproject/core.clj and test/myproject/core.clj that is intrinsically broken
14:15	shekibobo	well, I think it was called test/myproject/core_test.clj
14:15	justin_smith	that's not what you said above
14:15	justin_smith	or maybe the issue is the name of the test ns
14:17	gfredericks	lol
14:17	gfredericks	"was having trouble running my tests, so I tried switching test libraries, and that worked."
14:18	gfredericks	"I kept getting this syntax error, so I switched to python and it went away."
14:19	shekibobo	well, I came across a site that talked about deprecating expectations
14:20	shekibobo	pretty new to this ecosystem, so I'm just trying things out
14:21	gfredericks	huh; I don't think it's deprecated
14:21	shekibobo	looks like it's not deprecated, though
14:21	shekibobo	now that I check github
14:21	shekibobo	last update 19 days ago
14:21	shekibobo	shrug
14:30	gfredericks	shekibobo: was it http://blog.jayfields.com/2012/11/clojure-deprecating-expectationsscenari.html
14:48	shekibobo	yeah, that was it. just didn't remember exactly what triggered me to switch libs
16:35	kqr	is there a function (fn [f x] (if x (f x))) that I'm missing?
16:36	kqr	or a macro, rather, I suppose
16:36	kqr	or maybe not
16:36	kqr	i'm so used to non-strict evaluation
16:37	kqr	...I think I mean a function, yeah
16:37	justin_smith	a macro would not be needed there - since you need to fully evaluate x regardless of the branch taken
16:38	justin_smith	(I guess you could have a version where x is nil and f is not a valid function, and avoid that error with a macro...)
16:38	justin_smith	maybe?
16:38	kqr	probably, but that's not going to be the case in my code
16:38	justin_smith	there is fnil to give f a default argument for a nil input
16:38	kqr	i'm just curious if that function exists as part of clojure.core or something like that, and I'm just not finding it
16:39	kqr	i saw fnil, but i want the call to be ignored entirely if the argument is nil
16:39	justin_smith	but I don't think there is #(and %2 (% %2))
16:39	amalloy	kqr: it's a bit like one of the things added in 1.5, i think test->?
16:39	amalloy	,(test-> nil inc)
16:39	clojurebot	#<CompilerException java.lang.RuntimeException: Unable to resolve symbol: test-> in this context, compiling:(NO_SOURCE_PATH:0:0)>
16:39	amalloy	ugh, i don't remember what names he settled on
16:40	kqr	cond->? some->?
16:40	amalloy	cond->
16:40	amalloy	,(cond-> nil inc)
16:40	clojurebot	#<AssertionError java.lang.AssertionError: Assert failed: (even? (count clauses))>
16:40	justin_smith	,(clojure.repl/apropos "->")
16:40	clojurebot	(cond->> -> as-> some->> ->VecSeq ...)
16:40	amalloy	man, i give up
16:40	kqr	hehe
16:40	amalloy	i don't use those things
16:40	kqr	some->
16:40	kqr	looks right
16:41	kqr	,(some-> nil inc)
16:41	clojurebot	nil
16:41	kqr	,(some-> 3 inc)
16:41	clojurebot	4
16:41	kqr	yay
16:41	kqr	thanks
16:42	kqr	when you say "he", are you talking about hickey or someone else?
16:47	amalloy	hickey
16:49	kqr	is he like the BDFL of clojure or does he just happen to be very active in development?
16:50	mercwithamouth	....
16:50	catern	he is the creator and BDFL
16:50	kqr	i knew he was the creator, I just wasn't sure about the BDFL part :>
16:53	catern	he is King Hickey, first of his line, BKFL, champion of the order of the curved line
16:55	kqr	haha
16:55	kqr	it's so weird coming to a new PL community
16:55	clojurebot	No entiendo
16:55	kqr	and going from knowing a lot to knowing nothing
16:55	rpaulo	King Hickey, GBE
16:58	kqr	if I have moved a function from one namespace to another, and try to reload the namespace that now has the function in it, the REPL complains about "f already refers to <old-namespace>/f" even though that's been removed. how do I fix that without restarting the REPL?
17:04	zoldar	kqr: maybe try ns-unmap ?
17:04	zoldar	kqr: http://stackoverflow.com/a/5571144
17:05	kqr	zoldar, that did the trick
17:06	kqr	zoldar, do you happen to know why f was in the user namespace, even though I, as far as I know, never imported it to there?
17:06	justin_smith	kqr: also, if you require :as instead of use this stuff comes up less often (though it's slightly more verbose)
17:06	justin_smith	kqr: wait, you were getting those warnings without calling use? that's weird
17:07	zoldar	kqr: I have no idea
17:07	justin_smith	kqr: if you require or use, the function is not "in" the user ns, but it has a binding there
17:07	justin_smith	the error is about the binding, not about where it is defined
17:07	kqr	justin_smith, I require :as in all my files
17:08	justin_smith	OK, what about in the repl?
17:08	kqr	justin_smith, I haven't use'd or required anything in the REPL as far as I know
17:08	justin_smith	then how the hell is that function even defined?
17:08	kqr	does leiningen do some requiring when I run lein repl?
17:08	kqr	or wait a minute
17:09	justin_smith	how are you loading this code into your repl?
17:09	kqr	I reload the namespaces with (use 'name.space :reload)
17:09	justin_smith	right
17:09	justin_smith	and use creates bindings
17:09	kqr	that maybe counts
17:09	kqr	yeah
17:09	justin_smith	the error says two bindings have the same name
17:09	justin_smith	which they do
17:09	justin_smith	because you are using use
17:09	kqr	that makes a lot of sense!
17:09	kqr	things making sense makes me happy
17:10	zoldar	usually, you don't use use
17:10	kqr	is there a better way to reload your project?
17:10	justin_smith	so, going back to my first comment on this subject, if you (require '[foo.bar :as bar] :reload) instead of (use 'foo.bar :reload), this problem disappears
17:10	zoldar	sorry, couldn't resist
17:10	kqr	justin_smith, ah
17:11	kqr	justin_smith, is that what people normally do when they work with their project in the REPL or am I missing something?
17:11	justin_smith	that's what I normally do
17:11	kqr	it feels awkwardly verbose, is all I'm thinking
17:11	justin_smith	I think most people do a keystroke that makes their editor do some equivalent for them
17:11	kqr	ah
17:11	justin_smith	there is also :reload-all
17:11	justin_smith	for recursive reloading
17:11	kqr	that sounds more like what I want
17:12	justin_smith	this still doesn't cover the more subtle problem that reloading can only add things to namespaces
17:12	justin_smith	it doesn't remove things even if the definition is no longer there
17:12	justin_smith	(you also have to watch out for defonce, and things like defmulti that have defonce semantics)
17:13	justin_smith	,(doc ns-unmap)
17:13	clojurebot	"([ns sym]); Removes the mappings for the symbol from the namespace."
17:13	justin_smith	that solves that problem
17:14	zoldar	kqr: afaik, tools.namespace provides some tooling to make such operations easier
17:14	kqr	where do I start looking when I get error messages like "ClassCastException java.lang.Boolean cannot be cast to clojure.lang.Symbol clojure.core/alias (core.clj:3940)"?
17:14	kqr	zoldar, i saw that mentioned somewhere else, yeah
17:14	justin_smith	kqr: (pst) - then look for calls in your own code
17:14	kqr	zoldar, i'll have to look at it once I'm slightly more comfortable with just the default system
17:15	justin_smith	one thing with clojure is we end up with very deep call stacks
17:15	kqr	justin_smith, that's a good idea for future errors, thanks. in this case, it happens when I try to :reload-all, so there are no calls that are mine hehe
17:16	justin_smith	kqr: weird, maybe one of your namespaces being recursively reloaded has a broken ns form
17:17	justin_smith	alias is a function that implements the namespace binding for use / require
17:17	justin_smith	,(doc alias)
17:17	clojurebot	"([alias namespace-sym]); Add an alias in the current namespace to another namespace. Arguments are two symbols: the alias to be used, and the symbolic name of the target namespace. Use :as in the ns macro in preference to calling this directly."
17:17	kqr	what I'm trying to eval is (require 'my-project.core :as 'my-project :reload-all)
17:17	justin_smith	ok, that's malformed
17:17	kqr	ah
17:18	justin_smith	(require '[my-project.core :as my-project] :reload-all)
17:18	kqr	oh
17:18	kqr	I see
17:18	kqr	I can't believe I missed that – you even typed it correctly before!
17:18	kqr	thanks
17:18	justin_smith	np
17:18	kqr	clojure certainly feels a lot different from my main work horse – haskell
17:19	kqr	but in a sort of "i'm finally coming home" way
17:19	kqr	it's difficult to put into words
17:19	justin_smith	yes, the branch between the ml family and the lisp family happened decades ago, and they are hardly a typical ml and typical lisp :)
17:20	kqr	my main problem so far (beyond the normal beginner ones, such as getting lost in the ecosystem) is that the syntax looks sort of...messy
17:20	kqr	I'm not sure why that is though
17:20	justin_smith	I'm glad to hear you're getting to feel comfortable with clojure, it's a great language imho
17:20	justin_smith	(inc clojure)
17:20	lazybot	⇒ 18
17:21	justin_smith	it's not much of a syntax, and it has little to no sugar in it
17:22	andyf	I know I've seen examples of this before, but I can't recall where right now. I want to require or use a namespace conditionally at a certain point in my code, and then call functions inside of it after that. And I want the file to compile. Examples you can point me at?
17:22	justin_smith	resolve
17:22	zoldar	kqr: end of the comment for the example antlr grammar for clojure by parr describes it well ;) https://github.com/antlr/grammars-v4/blob/master/clojure/Clojure.g4
17:24	kqr	zoldar, hehe. what's weird is that when I did a little common lisp a few years ago, I remember the syntax not being a problem at all. the parens disappeared after a few days and so on
17:24	kqr	zoldar, I guess I expected that to happen quicker with clojure, but maybe it'll take some time
17:26	zoldar	kqr: probably, there's still a bit more sugar, like literals for vectors, sets, maps, anonymous fns etc.
17:26	kqr	yeah those things are great though
17:27	sveri	Hi, how can I assert that a function is returned by one of my methods with midje?
17:27	kqr	i should probably be put into rehab for my abuse of maps for all kinds of communication between functions...
17:27	amalloy	the vector literals aren't actually syntax sugar for anything, though
17:28	amalloy	like, (defn foo [x] x). how do you "de-sugar" the []s?
17:37	andyf	kqr: It is hard to go too far with maps :)
17:37	kenrestivo	has anyone tried using friend-oauth2 with google apps oauth2 login system?
18:09	schmee	I get a strange error with core.async, "No method in multimethod '-item-to-ssa' for dispatch value: :fn", from this code: https://gist.github.com/schmee/6d6bbeff46a40c28a7ac (<15 LOC)
18:24	Bronsa	schmee: go blocks cannot cross fn boundaries
18:25	Bronsa	schmee: a >!/<! operation must be in the same lexical scope of the go block, and in the same fn
18:25	schmee	Bronsa: aha!
18:25	schmee	Bronsa: do you have any idea how I could rewrite that so that it works?
18:25	schmee	just move in the go-block?
18:26	Bronsa	schmee: I'm no core.async expert, but I think you can just write that as (sloop socket #(put! c %))
18:27	schmee	Bronsa: I'll try that, thanks!
18:30	schmee	(inc Bronsa)
18:30	lazybot	⇒ 46
20:07	shekibobo	I'm trying to understand and solve the 0-1 knapsack problem, which seems to depend on maintaining a matrix of values that can be updated over the process of running a recursive function
20:07	shekibobo	since everything is immutable, how would I even go about recording those values somewhere?
20:08	amalloy	shekibobo: loop (or reduce) over a vector of vectors
20:19	kristof	shekibobo: Are you familiar with the technique of passing state as an explicit argument?
20:19	kristof	shekibobo: loop and recur with the state explicitly
20:19	shekibobo	if you mean passing the mutated version of something to a recursive function, yeah
20:19	kristof	shekibobo: Right, but if you try that in clojure you might blow the stack, so use recur :)
20:20	shekibobo	does recur have to be used with loop?
20:20	justin_smith	recur also works with functions
20:20	shekibobo	ok
20:20	justin_smith	but is an error if not in the tail position
20:20	shekibobo	ok
20:20	justin_smith	(unlike scheme where a self call may or may not be a tail call, with no error checking from the compiler)
20:29	shekibobo	what does memoize do?
20:29	justin_smith	shekibobo: it remembers the return value it got with a particular set of arguments, with the same args in the future it returns the same result again, from the cache
20:30	justin_smith	shekibobo: so it's great, as long as you don't count on any side effects
20:30	shekibobo	ok
20:30	justin_smith	(and as long as you know you will be getting the same args over and over)
20:30	justin_smith	so like memoizing + would likely be a waste of ram
20:30	shekibobo	right
20:30	justin_smith	but memoizing fib, and fib being recursive, is a smart plan
20:31	shekibobo	because it remembers all the past arguments->return values that it received?
20:31	justin_smith	because then you can implement a naive recursive fib, and still get decent performance after the first call
20:31	justin_smith	right
20:31	shekibobo	that might be what I'm looking for, then, thanks
20:31	justin_smith	so it only needs to recurse the first time it hits a particular arg - after that it just gets the result from cache
20:31	justin_smith	shekibobo: depending on the flexibility you need, there is also core.cached
20:31	justin_smith	for ttl caching etc.
20:32	shekibobo	ok, thanks
20:32	shekibobo	probably memoize for my purposes
20:33	kristof	justin_smith: "with no error checking from the compiler" What's wrong with a self call that isn't in tail position? A lot of functions on trees look like that.
20:34	amalloy	kristof: nothing is wrong with it. justin_smith's point is that you don't want to write something that you think is tail recursive if it actually isn't
20:34	justin_smith	kristof: sure, but I mean recur is checked for tail position
20:34	kristof	gotcha
20:34	kristof	Carry on
20:55	shekibobo	ahh, good ol' stack overflow...
21:06	danielcompton	Headlining feature of clojure 1.8: dissoc-in
21:06	catern	oh boy
21:07	gtrak	lol finally
21:07	gtrak	it's going to break so many codebases
21:07	gtrak	make them spew warnings
21:14	TimMc	danielcompton: whaaat, really?
21:15	amalloy	TimMc: i'm pretty sure danielcompton was saying that as some kind of mix of hope and irony
21:19	danielcompton	Hope and irony, also will come with disco-in, a function that returns you to the 70's
21:20	amalloy	y'know, TimMc, i'm always complaining that the behavior of dissoc-in wouldn't be obvious, but you've come up with a behavior so intuitive i can't object
21:24	justin_smith	danielcompton: only if we get disco-stu as well
21:24	TimMc	amalloy: No, no, this is dissco-in
21:25	TimMc	diss + disco in
21:25	danielcompton	justin_smith: disco-stuart-halloway
21:26	justin_smith	lol
21:26	TimMc	What about disco-stuart-sierra?
21:26	danielcompton	the other Stuart
21:27	justin_smith	sounds like there will need to be a dance-fight to establish the true holder of the disco-stu title
21:31	TEttinger	the simpsons marathon is pretty great right now
21:32	TimMc	What mile are they on?
21:34	sritchie	just pushed an announcement for om-bootstrap to the mailing list: https://github.com/racehub/om-bootstrap
21:34	sritchie	doc site with live examples, if anyone’s interested: http://om-bootstrap.herokuapp.com/
21:35	sritchie	launching a project on a sunday night, woohoo!!
21:35	justin_smith	nice
21:37	TEttinger	278 hours of one show, wow
21:38	justin_smith	that's 151.78053237410072 meters of show per hour
21:38	justin_smith	pretty slow pace for a marathon
21:39	justin_smith	#units
21:40	catern	lol
21:41	catern	good ole units
22:19	maravillas	sritchie: that looks incredibly handy
22:19	sritchie	yeah, it’s been great
22:19	sritchie	maravillas: still missing some of the more awesome components, but I should be able to knock those out this week
22:20	mynomoto	sritchie: looks amazing!
22:20	sritchie	thanks!
22:22	sritchie	it was fun to write the doc site using the library :)
22:22	mynomoto	sritchie: looks like you have more than react-bootstrap itself.
22:26	gtrak	is the pedestal lein template out of date? I can't get interactive reload going with run-dev.. other question, is pedestal use growing?
22:30	beamso	is anyone using schema with clojurescript?
22:32	gtrak	beamso: lots of people are
22:33	beamso	i'm having an issue where my attempt to check/validate data against a schema gives me a 'No protocol method Schema.walker defined for type undefined:' message in the console of my web browser. any ideas?
22:38	amalloy	beamso: that's what a null pointer exception looks like in javascript
22:38	amalloy	your schema is undefined, instead of a schema
22:44	beamso	oh, okay
22:46	sritchie	beamso: yeah, I’ve had that
22:46	sritchie	typo
22:59	danielcompton	gtrak: Pedestal App has been 'put on ice', Pedestal Service is still being developed
22:59	gtrak	yes, I knew that already, I figured out the issue with the template.
22:59	danielcompton	'put on ice' -> taken to the great garbage collector in the sky
22:59	gtrak	haha
23:00	gtrak	well, I wonder if it'll ever get critical mass, I've been using compojure for a long time already, ready to branch out.
23:00	gtrak	and the async stuff + transit is appealing.
23:04	danielcompton	gtrak: is Pedestal using Transit?
23:05	gtrak	i don't think it is, I'm just thinking ahead.
23:05	gtrak	i mean, obviously that's something they'll do eventually
23:05	gtrak	if not internally already
23:06	danielcompton	gtrak: do you know how much Cognitect is using Pedestal internally?
23:06	sarcher	hi anyone around that is familiar with clojure data.xml?
23:06	sarcher	and is willing to help a newb.
23:06	gtrak	danielcompton: I know they use it for some client projects.
23:06	gtrak	but that's about it
23:06	gtrak	that's about all I know, rather.
23:12	amalloy	~anyone
23:12	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 ..."
23:13	lpvb	every channel on freenode has this rule lol
23:29	arrdem	(inc justin_smith)
23:29	lazybot	⇒ 65
23:32	TEttinger	sarcher, did you have a question?
23:32	catern	"has anyone ever dealt with people falling prey to the XY problem?"
23:33	TEttinger	has anyone seen how ~anyone works?
23:42	sarcher	TEttinger: http://stackoverflow.com/q/25478704/1310
23:43	sarcher	TEttinger: I took the time to write it up on stackoverflow.
23:43	TEttinger	cool
23:43	sarcher	I'm trying to learn clojure and the first thing I know I'll need to do is parse xml and do something with it.
23:44	sarcher	so i'm reimplementing something i've done before in java.
23:44	sarcher	it didn't take me long to get stuck :)
23:45	TEttinger	conveniently linked by that stack overflow is http://stackoverflow.com/questions/14333637/how-can-i-lazily-parse-big-xhtml-file-in-clojure?rq=1
23:45	kristof	I wonder how clojure performs on Zing. :o
23:45	TEttinger	it's great how stack overflow waits for you to post to suggest stuff that might make you not have to post :P
23:46	TEttinger	this first answer here too, sarcher. http://stackoverflow.com/questions/9939844/huge-xml-in-clojure
23:48	TEttinger	there's a hidden comment there that could be helpful: Got this working with wikipedia dumps - nice. You'll want to wrap it in with-open and dorun to get it to lazily work through a large list: (with-open [rdr (fn-that-opens-a-reader)] (dorun (->> ...as above...
23:50	sarcher	TEttinger: I actually looked at the suggested answers when i typed up the question.
23:50	sarcher	I think the links you posted will get me what I need. Thanks!
23:50	TEttinger	no prob.
23:51	TEttinger	I can make an answer if I need the karma, I'm at like 13...
23:51	TEttinger	nah
23:51	sarcher	feel free to put in an answer
23:51	sarcher	i'll up vote / accept it haha.
23:51	sarcher	I wasn't searching for "HUGE XML CLOJURE"
23:51	sarcher	hehe
23:51	sarcher	it may help someone in the future
23:51	sarcher	if not i'll write the answer once I get it working.
23:56	arrdem	anyone know of a text formatting library in Clojure?
23:57	arrdem	I'm toying with the idea of a "document" as a sequence of nodes describing plain text formatting operations, and transformers to and from raw strings to enable restructuring/reformatting by blocks.
23:58	arrdem	say {:op :indent :width 2 :children [:text] :text "my two space indented block"} etc.