#clojure – 2009-03-15

2009-03-15

00:01	durka42	got it to parse wiki markup did you?
00:02	hiredman	no
00:02	hiredman	I got it to parse something
00:03	hiredman	in this case, it just parses out odd and even digits (seperately), as a result I get a sequence composed of numbers that each are composed of either all odd or all even digits
00:04	durka42	cool
00:04	hiredman	it is a start
04:21	Lau_of_DK	Morning all
04:24	slashus2	hi Lau_of_DK
04:29	Lau_of_DK	Can somebody please explain to me, why we are told to use 'rest' in recursive calls, instead of next?
04:35	Lau_of_DK	Can somebody please explain to me, why we are told to use 'rest' in recursive calls, instead of next?
04:35	Lau_of_DK	someone like kotarak
04:35	Lau_of_DK	:)
04:38	cmvkk_	who's telling us that?
04:38	Lau_of_DK	The Rich Man
04:39	Lau_of_DK	Recipe - Porting
04:39	Lau_of_DK	To move to the new model you'll need to take the following steps, in this order:
04:39	Lau_of_DK	* Rename all your calls to rest to call next
04:39	Lau_of_DK	* If you were defining your own lazy sequence functions, using lazy-cons, switch them over to lazy-seq using the recipe above. Make sure to call rest and not next in your recursive call.
04:39	Lau_of_DK	from clojure.org/lazy
04:39	cmvkk_	ohhh.
04:39	cmvkk_	that's when you're defining a lazy seq.
04:39	Lau_of_DK	thats right
04:40	cmvkk_	if you're defining a lazy-seq on top of an already existing seq (lazy or not)
04:40	cmvkk_	it won't be totally lazy unless you use rest instead of next.
04:40	cmvkk_	i think?
04:41	Lau_of_DK	I would have thought the opposite, because rest is eager
04:41	cmvkk_	what do you mean by that?
04:41	Lau_of_DK	But I guess when youre on top of another seq, you cant use the head, you need the frest
04:41	Lau_of_DK	,(rest [1 2 3 4 5])
04:41	clojurebot	(2 3 4 5)
04:41	Lau_of_DK	rest wil realize those 4 numbers, next will realize the first and remain lazy
04:41	cmvkk_	,(next [1 2 3 4 5])
04:41	clojurebot	(2 3 4 5)
04:42	Lau_of_DK	yes, when printing you get the same ofc :)
04:42	cmvkk_	that's realizing the numbers is what prints them out onto the screen.
04:42	cmvkk_	rest is lazier than next: it doesn't even evaluate the very next item.
04:42	cmvkk_	in fact, next is the same as (seq (rest ...))
04:43	Lau_of_DK	from the same page : "rest is fundamentally eager"
04:43	Lau_of_DK	You'll have to email Rich your findings :)
04:43	cmvkk_	(next aseq) === (seq (rest aseq))
04:43	cmvkk_	from that page
04:44	cmvkk_	the "rest is fundamentally eager" line is from the section about how it was before.
04:44	cmvkk_	"the current seq model" refers to the old model.
04:44	Lau_of_DK	(doc next)
04:44	clojurebot	Returns a seq of the items after the first. Calls seq on its argument. If there are no more items, returns nil.; arglists ([coll])
04:44	Lau_of_DK	(doc rest)
04:44	clojurebot	Returns a possibly empty seq of the items after the first. Calls seq on its argument.; arglists ([coll])
04:45	slashus2	So they are the same except next returning nil and rest returning an empty seq?
04:45	cmvkk_	rest returns a seq that MIGHT be empty.
04:45	slashus2	of course
04:45	cmvkk_	what makes next eager is that it evaluates the next item in line to check to see if it even exists at all.
04:45	cmvkk_	if you want to see if the return value of rest is empty or not, you have to call 'seq' on it.
04:45	cmvkk_	which is why nil punning doesn't work anymore...
04:46	Lau_of_DK	ah ok
04:46	Lau_of_DK	Then I get it - thanks
04:46	slashus2	Is rest deprecated?
04:46	cmvkk_	no; sometimes that's the behavior you want.
04:46	Lau_of_DK	No just altered
04:57	javuchi	hello
04:57	javuchi	when to learn clojure?
04:57	javuchi	any recomended website'
04:57	Lau_of_DK	clojure.org -> screencasts
04:58	javuchi	hello Lau_of_DK: the problem is that i have a slow connection
04:58	Lau_of_DK	ok, www.projecteuler.net , solve 1 - 50 in clojure, compare with clojure-euler.wikispaces.com once you've solved everyone
04:59	hoeck	javuchi: or http://www.ociweb.com/mark/clojure/article.html if you're new to lisp
05:00	javuchi	thank you
05:01	javuchi	do you think clojure is gonna be the lisp of the future?
05:02	Lau_of_DK	"gonna be" ?
05:02	Lau_of_DK	No other Lisp can go toe to toe with Clojure atm - If the world will ever catch on, I dont know
05:04	javuchi	what is atm?
05:05	hoeck	it's the best lisp for now, and it has lots of possiblities to develop
05:05	arbscht	javuchi: I doubt the future can only handle one lisp at a time
05:05	javuchi	but i mean: the mainstream lisp
05:06	javuchi	do you think clojure is going to catch up CL?
05:07	arbscht	I don't think clojure is trying to
05:07	Lau_of_DK	catch up? :)
05:07	Lau_of_DK	Where is it falling behind ?
05:13	javuchi	Lau_of_DK: some people says that clojure is worst because it lacks CLOS and can't modify its reader
05:14	Lau_of_DK	I dont think that the reader mods missing is a bad thing, and what do you need clos for? If you want objects just extends Java structure, which already surpasses CLs
05:14	hiredman	cough
05:15	hiredman	I don't know if surpasses would be word
05:15	kotarak	javuchi: some people have opions, other people have other opinions, such general remarks show, that some people have a very limited view of the world.
05:16	hiredman	the bookkeeper at work likes to say "opinions are like assholes, everyone has got one"
05:20	javuchi	i think most people that are against clojure lives in comp.lang.lisp
05:21	Lau_of_DK	Common Lisp is an emotion- It was the first Lisp I got into - and I was very happy to get out it again :)
05:22	hiredman	javuchi: let them eat cake
05:22	hiredman	and hopefuly stay in c.l.l
05:23	javuchi	hiredman: do you think they are problematic?
05:24	hiredman	just blind to anything that is not common lisp
05:24	hiredman	and, just, ugh
05:25	hiredman	reading c.l.l makes me want to alternate smacking my head with my hand and yelling
05:26	javuchi	i think the same
05:26	kotarak	javuchi: stay a while in c.l.l and in #clojure and you will see that CLOS is not everything. That's what they are missing. For me Clojure is better than CL because it throws away old cruft and brings a fresh breeze of air and because of the community, where Clojure really shines compared to CL
05:26	hiredman	the expression from the bookkeeper is most apt for c.l.l
05:27	hiredman	clojurebot: what is #clojure?
05:27	clojurebot	clojure is the brand
05:27	hiredman	bah
05:27	hiredman	clojurebot: this?
05:27	clojurebot	this is not a bug
05:27	kotarak	~blabla and this
05:27	clojurebot	this is not a bug
05:27	kotarak	hehe
05:27	hiredman	clojurebot: you are pretty worthless sometimes
05:27	javuchi	kotarak: completely agree, i've been intermitently in c.l.l for some years, and they are insupportable at times. they seem to be the most hostile nerds in the world
05:27	clojurebot	It's greek to me.
07:12	Lau_of_DK	ping
07:19	eevar_	can I make swank-clojure-extra-classpaths load all jars in a given directory? "/my/dir/*.jar" doesn't seem to work
07:22	hoeck	eevar_: "/my/dir/*" (without the .jar") works for me
07:22	eevar_	hoeck, ok, thanks
08:25	Lau_of_DK	durka durka
08:25	Lau_of_DK	hiredman, Cant we get that automated by Clojurebot?
08:25	Lau_of_DK	I mean, I enjoy doing it, but I might skip a beat once in a while
12:20	hiredman	clojurebot: jar directory?
12:20	clojurebot	jar directory is find .jars/ -type f -name \*.jar -print0\|xargs -0\|sed "s/ /:/g"
12:22	hiredman	clojurebot: jar directory is <reply>on with java6(jdk1.6) CLASSPATH can contain a "" so /jar/dir/ will suck in all the jars in the /jar/dir directory, this also works with swank-clojure-extra-classpaths in emacs, alternatively you can use this shell snippet: find .jars/ -type f -name \*.jar -print0\|xargs -0\|sed "s/ /:/g"
12:22	clojurebot	You don't have to tell me twice.
12:22	hiredman	clojurebot: jar directory?
12:22	clojurebot	on with java6(jdk1.6) CLASSPATH can contain a "" so /jar/dir/ will suck in all the jars in the /jar/dir directory, this also works with swank-clojure-extra-classpaths in emacs, alternatively you can use this shell snippet: find .jars/ -type f -name \*.jar -print0\|xargs -0\|sed "s/ /:/g"
12:23	hiredman	er
12:23	hiredman	clojurebot: jar directory is <reply>with java6(jdk1.6) CLASSPATH can contain a "" so /jar/dir/ will suck in all the jars in the /jar/dir directory, this also works with swank-clojure-extra-classpaths in emacs, alternatively you can use this shell snippet: find .jars/ -type f -name \*.jar -print0\|xargs -0\|sed "s/ /:/g"
12:23	clojurebot	You don't have to tell me twice.
12:24	eevar_	clojurebot: wiki?
12:24	clojurebot	wiki is http://en.wikibooks.org/wiki/Clojure_Programming
12:24	eevar_	clojurebot: clojure-mode?
12:24	clojurebot	clojure-mode is an Emacs mode for Clojure, found at git://github.com/jochu/clojure-mode.git
12:25	kotarak	clojurebot: vimclojure is http://kotka.de/projects/clojure/vimclojure.html
12:25	clojurebot	'Sea, mhuise.
12:25	eevar_	should clojure-mode do tab completion?
12:26	kotarak	clojurebot: gorilla is now merged with vimclojure http://kotka.de/projects/clojure/vimclojure.html
12:26	clojurebot	Alles klar
13:40	marklar	how does one implement a Java static interface in clojure? I thought I could just import it and then use proxy, but it keeps giving a ClassNotFoundException so I figure I'm doing something wrong
13:41	kotarak	marklar: then it's not in your classpath? I'm also not sure, whether you have to fully qualify the interface name or not. At least for gen-class have to do so.
13:41	marklar	kotarak: I'm able to extend classes in the same jar, so I was assuming it was some different with an interface vs a class
13:43	kotarak	marklar: then you should be able to just use it. Also importing should work. (import 'clojure.lang.IFn) (proxy [IFn] [])
13:44	kotarak	did you check the backtrace where the CNFE comes from?
13:45	marklar	its from the import statement
13:45	kotarak	marklar: maybe a typo?
13:45	marklar	(import '(android.view.View OnClickListener))
13:45	marklar	I hoped so :(
13:45	kotarak	I this an inner interface?
13:46	marklar	kotarak: good question
13:47	kotarak	I would expect (import '(android.view View OnClickListener)) or (import 'android.view.View) and then (proxy [View$OnClickListener] [])
13:47	kotarak	depending on the OCL being inside View or not.
13:47	marklar	kotarak: ah, yeah it is
13:47	marklar	kotarak: Thanks, I'll give that a shot
13:59	gnuvince_	I'm trying to convert a Clojure program to Haskell; just getting the FFI to work is probably gonna be as much work as the entire Clojure project :-/
14:02	Lau_of_DK	gnuvince, I actually yawned just from reading that
14:04	gnuvince_	Lau_of_DK: good for you
14:05	Lau_of_DK	yea it was nice
14:05	Lau_of_DK	I'll need some coffee now though
14:26	danlarkin	hey hey play nice
14:26	Lau_of_DK	~its his fault danlarkin, I was just minding my own business when suddenly...
14:26	clojurebot	CLABANGO!
14:28	Chousuke	... what the hell is that about.
14:28	danlarkin	it's #clojure's new favorite meme
14:28	Lau_of_DK	Chousuke, www.clabango.com
14:29	Lau_of_DK	Man I lolled at that
14:31	danlarkin	yeah it's pretty good
15:22	spacema__	hey guys - say I want to merge a set of lists of hashes, like ({:id 1, :value 6} {:id 5, :value 2}) and ({:id 1, :value 4}) and sum the value part when the id's are equal - what's the right approach?
15:25	slashus2	spacema__: (merge-with + {:id 1 :value 6} {:id 5 :value 2} {:id 1 :value 4})
15:25	slashus2	oh wait
15:31	cgrand	,(vals (clojure.set/index (apply concat '#{({:id 1, :value 6} {:id 5, :value 2}) ({:id 1, :value 4})}) #{:id}))
15:31	clojurebot	(#{{:id 5, :value 2}} #{{:id 1, :value 4} {:id 1, :value 6}})
15:31	cgrand	and then reduce on each item to sum?
15:39	spacema__	cgrand: Clever, thanks. DIdn't know about index
15:50	slashus2	,(vals (clojure.set/index #{{:id 1 :value 6} {:id 5 :value 2} {:id 1 :value 4}} #{:id}))
15:50	clojurebot	(#{{:id 5, :value 2}} #{{:id 1, :value 4} {:id 1, :value 6}})
15:51	slashus2	Why the apply concat?
15:54	slashus2	,(map #(apply merge-with + %) (vals (clojure.set/index #{{:id 1 :value 6} {:id 5 :value 2} {:id 1 :value 4}} #{:id})))
15:54	clojurebot	({:id 5, :value 2} {:id 2, :value 10})
15:55	spacema__	since the data comes in as lists of hashes
15:57	slashus2	spacema__: embedded in random lists? (hash1 hash2) (hash3) (hash4 hash5) ?
15:57	spacema__	yeah, that's how I've got it now. I'm thinking it'd make sense to reshape it to take advantage of merge-with
16:00	slashus2	,(map #(apply merge-with + %) (vals (clojure.set/index (set (concat [{:id 1 :value 6} {:id 5 :value 2}] [{:id 1 :value 4}])) #{:id})))
16:00	clojurebot	({:id 5, :value 2} {:id 2, :value 10})
16:01	slashus2	I made them vectors for clarity.
16:02	spacema__	yeah. the problem is that merge-with is applying + to both the id's and other fields
16:03	slashus2	You don't want it to add the values?
16:03	spacema__	I want to add the vals, but the id's should be preserved; that is, the output should be ({:id 5, :value 2} {:id 1, :value 10})
16:13	cmvkk_	i can't see the beginning of your conversation, but it seems like your problem would be easier if the ID were a key and the value were a value, rather than both being key-value pairs.
16:13	cmvkk_	{5 2} rather than {:id 5 :value 2}
16:13	spacema__	yep, absolutely
16:14	spacema__	I'm gonna change it to work like that
16:16	spacema__	Thanks for the help thinking it over guys
16:22	kib2	Hi. I've just setup my EMacs to work with Clojure (using SLIME).
16:22	kib2	Now, I just want to learn how to use it :)
16:22	kib2	It's quiet confusing : you've got a Clojure and a SLIME menu.
16:22	kib2	Any advice ?
16:24	Hun	don't use the menus too much
16:24	Hun	(slime-setup '(slime-fancy))
16:24	Hun	use this.
16:24	Hun	most important stuff: load a file with C-c C-k, single defs with C-M-x
16:24	Hun	use the inspector with C-c I
16:24	Hun	try paredit for editing
16:25	kib2	Hur: thanks! I've tried paredit but found it very annoying : once on an open par, I just can't delete it.
16:26	kib2	Hur --> Hun, sorry
16:26	Hun	you can when there's nothing between
16:26	kib2	ah? ok, thanks for the tip.
16:26	Hun	navigate by C-M-[fbud], delete stuff with C-M-k and move it around
16:26	Hun	works pretty fast once you're used to it
16:27	Hun	you can jump into stuff with M-. and out via M-,. try it, works also on core-clojure-stuff
16:48	Lau_of_DK	({:a 1, :b 2} {:a 2, :b 3} {:a 3, :b 4})
16:48	Lau_of_DK	({:a 41, :b 42} {:a 52, :b 53} {:a 63, :b 64})
16:48	Lau_of_DK	Ok, lets say I have these 2 lists of hash-maps, and I want to merge them into 1 big hash-map
16:49	Lau_of_DK	I need a very fast an effecient way to do this, since Im merging more than 150K maps
16:51	achim_p	Lau_of_DK: what's the result supposed to look like for these two lists?
16:52	Lau_of_DK	({:a 1, :b 2} {:a 2, :b 3} {:a 3, :b 4} {:a 41, :b 42} {:a 52, :b 53} {:a 63, :b 64})
16:56	achim_p	hmm, list concatenation is linear time
16:57	Lau_of_DK	No chance of blowing the heap with that?
16:57	slashus2	(merge (concat [{:a 1, :b 2} {:a 2, :b 3} {:a 3, :b 4}] [{:a 41, :b 42} {:a 52, :b 53} {:a 63, :b 64}]))
16:57	slashus2	,(merge (concat [{:a 1, :b 2} {:a 2, :b 3} {:a 3, :b 4}] [{:a 41, :b 42} {:a 52, :b 53} {:a 63, :b 64}]))
16:57	clojurebot	({:a 1, :b 2} {:a 2, :b 3} {:a 3, :b 4} {:a 41, :b 42} {:a 52, :b 53} {:a 63, :b 64})
16:59	slashus2	You don't even need merge
16:59	slashus2	concat alone works.
16:59	cmvkk_	yep, this is a list concatenation problem.
16:59	Lau_of_DK	hmm, cool
16:59	Lau_of_DK	I figured concat would give me 2 lists in a list
16:59	cmvkk_	that would be conj.
16:59	cmvkk_	or cons maybe.
17:00	cmvkk_	or list.
17:00	Lau_of_DK	or both
17:01	Raynes	,(conj [{:a 1 :b 2} {:a 2 :b 3}])
17:01	clojurebot	java.lang.IllegalArgumentException: Wrong number of args passed to: core$conj
17:01	Raynes	Of course.
17:01	cmvkk_	,(apply conj [{:a 1 :b 2} {:a 2 :b 3}])
17:01	clojurebot	{:a 2, :b 3}
17:02	Raynes	,(conj [{:a 1 :b 2} {:a 2 :b 3}] [{:a 2 :b 4])
17:02	clojurebot	Unmatched delimiter: ]
17:02	Raynes	Damn it!
17:02	Raynes	,(conj [{:a 1 :b 2} {:a 2 :b 3}] [{:a 2 :b 4}])
17:02	clojurebot	[{:a 1, :b 2} {:a 2, :b 3} [{:a 2, :b 4}]]
17:02	Raynes	There. -_-
17:03	slashus2	,(conj [{:a 1 :b 2} {:a 2 :b 3}] {:a 2 :b 4})
17:03	clojurebot	[{:a 1, :b 2} {:a 2, :b 3} {:a 2, :b 4}]
17:04	Raynes	So there.
17:05	Raynes	I have lemon cookies!
17:08	hiredman	it is girl scout season
17:09	Raynes	Not those kind of lemon cookies.
17:15	achim_p	Lau_of_DK: but if the lists are long, linear time is pretty bad. if you're accessing the maps sequentially, you could as well keep the lists and build vectors or lists of them (instead of concatenating them), which you can then do a tree-walk on
17:16	Lau_of_DK	achim_p, I pretty fast going over 200000 lines, so no need to optimize
17:41	Mec	is there a way to cache the return values of a function?
17:42	dnolen	,(doc memoize)
17:42	clojurebot	"([f]); Returns a memoized version of a referentially transparent function. The memoized version of the function keeps a cache of the mapping from arguments to results and, when calls with the same arguments are repeated often, has higher performance at the expense of higher memory use."
17:42	Retonator	i thought you could use memoization for that or are you looking for something in the lang?
17:42	Retonator	lol, didn't know it was in the lang already
17:43	Mec	wow that's nifty
17:43	dnolen	;) sometimes it's plain shocking how much stuff is already there, I'm surprised constantly.
17:43	Retonator	have to dive into it ;), just found out about clojure 2 days ago
17:45	Mec	,([#(* 2 %)])
17:45	clojurebot	java.lang.IllegalArgumentException: Wrong number of args passed to: LazilyPersistentVector
17:45	Mec	shouldnt that work then?
17:45	Chousuke	,`memoize
17:46	clojurebot	clojure.core/memoize
17:46	Chousuke	hm
17:46	Mec	or should it be (memoize #(* 2 %))
17:46	Chousuke	Mec: yeah. and you need to store the result somewhere
17:46	Mec	ok, so what does the ([f]) mean
17:47	Chousuke	function
17:47	durka42	that's the arglists for the function
17:47	Retonator	arg
17:47	Chousuke	(def memosquare (memoize #(* % %)))
17:47	durka42	(doc +)
17:47	clojurebot	Returns the sum of nums. (+) returns 0.; arglists ([] [x] [x y] [x y & more])
17:47	Mec	ah ok then
17:47	Chousuke	Mec: it corresponds to the arg vectors used when defining the function
17:47	durka42	+ has more than one permissible arglist, they are listed at the end there
17:48	Chousuke	Mec: so if you (defn foo [a b c]) then (doc foo) will say it has arglists [a b c]
17:48	Mec	right right, just the way it was formatted threw me off
17:48	Chousuke	(doc memoize)
17:48	clojurebot	Returns a memoized version of a referentially transparent function. The memoized version of the function keeps a cache of the mapping from arguments to results and, when calls with the same arguments are repeated often, has higher performance at the expense of higher memory use.; arglists ([f])
17:48	Chousuke	doc is so common it gets some special treatment :)
17:49	Mec	doc memoize
17:49	Chousuke	(note there's no dot)
17:49	Chousuke	you still need the parens.
17:49	Mec	ah well, back to programming :D
17:49	Chousuke	and comma, not dot :P
17:49	Chousuke	there's also:
17:49	Chousuke	~source memoize
17:49	Chousuke	(clojurebot is not very consistent.)
17:49	Retonator	is clojurebot coded in clojure or is it using eggbot or something?
17:50	Chousuke	it's clojure
17:50	Chousuke	using PIRCbot
17:50	Chousuke	clojurebot: source
17:50	clojurebot	source is http://github.com/hiredman/clojurebot/tree/master
17:50	Retonator	thanks
17:51	Chousuke	it started off as a simple script on gist so it's not very designed :P
17:52	Chousuke	all of its history has been preserved though so you can look at what it used to be :)
17:52	Retonator	nevermind i still have to learn so some pratical stuff is pretty nice for me
17:52	Retonator	i like git ;)
17:52	Chousuke	yeah, me too.
17:53	Chousuke	it was pretty fun making the github project and then merging the gist history into it.
17:54	tashafa	hello all
17:54	tashafa	is there a way to turn a string to a clojure regexp?
17:55	Retonator	i am still learning git too, but i find github and git very inspiring
17:55	Chousuke	if you look at the network graph there's a long line of "auto ci" commits and then it merges and there's some funky stuff
17:55	Retonator	as a developer i have been working with M$ most of my time
17:56	Retonator	but i always had an intrest for functional languages
17:56	Retonator	haskell, clean, f#
17:57	slashus2	tashafa: #"\w+"
17:57	danlarkin	tashafa: re-pattern
17:58	danlarkin	(doc re-pattern)
17:58	clojurebot	Returns an instance of java.util.regex.Pattern, for use, e.g. in re-matcher.; arglists ([s])
17:58	tashafa	ah thanks
17:58	durka42	also, Pattern/compile, but that's what re-pattern does :p
17:58	tashafa	i need to read stus book more insead of hacking :P
17:59	tashafa	,(doc find-doc)
17:59	clojurebot	"([re-string-or-pattern]); Prints documentation for any var whose documentation or name contains a match for re-string-or-pattern"
18:00	tashafa	,(find-doc "re-")
18:00	clojurebot	------------------------- clojure.core/binding ([bindings & body]) Macro binding => var-symbol init-expr Creates new bindings for the (already-existing) vars, with the supplied initial values, executes the exprs in an implicit do, then re-establishes the bindings that existed before. ------------------------- clojure.core/compare-and-set! ([atom oldval newval]) Atomically sets the value of atom to newval if and
18:00	slashus2	..
18:01	Chousuke	it doesn't do reformatting :)
18:01	Lau_of_DK	tashafa, If you install emacs, you can have slime/repl in 1 window, and #clojure in the one side beside it :) Then you get (doc foo) w/o any pressure on your line
18:02	tashafa	l-o-dk: i use emac and slime... for some reason i just like using clojorebot :)
18:02	tashafa	clojure*
18:03	Retonator	what is a good starting point for learing emacs/slime (i have already installed everything and runing using the ubuntu tutorial)
18:05	tashafa	whats the key bindings to the emacs tutorial again?
18:05	dnolen	I always post this about emacs http://home.uchicago.edu/~gan/file/emacs.pdf
18:05	dnolen	it will save you a lot of time
18:05	dnolen	also the pdf of the gnu emacs manual
18:06	dnolen	slime isn't so tough, you have the menu commands, eventually you'll memorize the key-bindings
18:06	Retonator	that pdf should be hanging on a wall somewhere ;)
18:07	tashafa	its on my office wall
18:07	Retonator	if i do a C-x C-e on a line of code, should i see this line back in the slime-mode or is it just executed?
18:08	Mec	so memoize creates a map, is there a way to seed values?
18:10	dnolen	memoize creates a closure over an atom
18:11	dnolen	you might want to suggest on the mailing list providing a version that can be seeded
18:11	dnolen	in any case you should look at the source of memoize
18:11	dnolen	it's only 8 lines of code ;)
18:11	Mec	i have, looks pretty easy to use seeds
18:13	hiredman	,(class (memoize #(prn :foo)))
18:13	clojurebot	clojure.core$memoize__5054$fn__5056
18:13	hiredman	~def memoie
18:13	hiredman	~def memoize
18:14	tashafa	im sorry im being a hassle..but how do you set the case sensitiviy of a clojure regexp pattern?
18:15	hiredman	(?i) will make a pattern case insensitive
18:16	hiredman	,(re-find #"(?i)foo" "FOO")
18:16	clojurebot	"FOO"
18:16	tashafa	cool thanks
18:19	tashafa	another one... when you map over a sequece is the sequence created lazy and if not is there a lazy-map fn?
18:20	hiredman	clojurebot: map?
18:20	clojurebot	map is LAZY
18:20	Lau_of_DK	Good one :)
18:20	Mec	hmm memoize doesnt work for a function called form recur
18:20	Mec	from*
18:20	tashafa	hiredman: i cant thank you enough
18:20	hiredman	~def map
18:21	tashafa	actually i'm giving clojurebot credit for that one
18:21	tashafa	:)
18:21	hiredman	you should
18:22	hiredman	clojurebot: if you were a super hero, what would your origin story be?
18:22	clojurebot	http://clojure-log.n01se.net/date/2008-11-21.html#13:04
18:25	Raynes	~and suddenly...
18:25	clojurebot	CLABANGO!
18:28	tashafa	,(doc re-replace)
18:28	clojurebot	java.lang.Exception: Unable to resolve var: re-replace in this context
18:28	tashafa	are we still using java api for regex replace
18:28	tashafa	?
18:29	hiredman	the replace method on strings takes a regex
18:29	hiredman	well, a string object that it uses as a regex
18:29	tashafa	(.replace "tester" #"^t" "b")
18:29	tashafa	,(.replace "tester" #"^t" "b")
18:29	clojurebot	java.lang.IllegalArgumentException: No matching method found: replace for class java.lang.String
18:29	hiredman	nah
18:30	hiredman	,(.replace "tester" "^t" "b")
18:30	clojurebot	"tester"
18:30	hiredman	er
18:30	hiredman	hm
18:30	hiredman	ah
18:30	hiredman	.replace takes a string
18:30	Retonator	lol, i am scrolling through the clojurebot source and i see this line: "Ik begrijp" i don't know if this is intended but this is not "proper" dutch ;)
18:31	tashafa	,(.replaceAll "tester" "^t" "b")
18:31	clojurebot	"bester"
18:31	hiredman	I forget where I got that
18:31	slashus2	hiredman: Are you going to add a javaDoc function?
18:31	hiredman	~jdoc String
18:31	Retonator	it should be "Ik begrijp het" 'nitpicking'
18:33	slashus2	cool
18:35	Mec	is there a way to define a function in a function so that the inner function doesnt get redefined every time the outer function is called
18:39	gnuvince_	Mec: the compiler will take care of that.
19:02	kib2	Is there any solution to the last comment on http://www.newartisans.com/2009/03/hello-haskell-goodbye-lisp.html ?
19:03	Raynes	LISPers and Haskellers are meant to fight.
19:03	Raynes	The rivalry will never end.
19:04	kib2	No, I don't think it's a fight here. It's a real question.
19:07	durka42	well the solution is to streamline it :p
19:07	durka42	once upon a time it must have been really hard to get GHC to do "simple" things
19:07	hiredman	hmmm
19:07	durka42	i think it will get better
19:07	durka42	um
19:08	hiredman	that should be it
19:08	hiredman	sorry about that
19:08	durka42	this is like when i fix the wifi and my screen fills up with email notifications
19:08	durka42	streams are in now?
19:09	hiredman	the java side is
19:09	durka42	ah
19:09	durka42	hmm i was confused there for a second -- wondering what kind of genetic algorithms for math are going into contrib
19:11	Mec	is there a way to make reduce compare (5 4 3 2 1) as 1 &2, 3, 4, 5?
19:12	Mec	actually 2 & 1, 3, 4, 5. otherwise it's a simple reverse
19:13	hiredman	what?
19:13	gnuvince_	Mec: no, reduce is foldl and there is not foldr
19:13	Mec	poo, ok guess i can just rewrite the function i pass to filter
19:14	gnuvince_	What do you want to do?
19:15	Mec	reducing thru a list of lists
19:15	Mec	i figured it out tho, pretty easy fix
19:20	gnuvince_	kib2: that's an implementation problem, not a language problem.
19:21	kib2	gnuvince_: sorry, I don't really catch your answer.
19:23	durka42	kib2: as in, there's no real reason that should be hard, and a shell script or a small clojure program could smooth things over
19:24	durka42	(i think that's what gnuvince_ meant)
19:26	gnuvince_	Yeah
19:26	kib2	durka42: ok, thanks. I was just asking this because I have already seen this problems in CL world, and I expected Clojure to solve the issue easily.
19:26	gnuvince_	The CLs usually ship the entire compiler+runtime with the program, which explains why they're huge
19:26	kib2	but you're right, writting a script is rather easy.
19:27	gnuvince_	And Clojure... well, I don't know Java well enough, but I'm guessing it's bound by the same limits Java is.
19:27	kib2	gnuvince_: oh yes!
19:27	gnuvince_	If you strip everything like Haskell does, well then you just have something that a C compiler could've compiled.
19:28	gnuvince_	Which means it's a static program, not something that you can extend and rework as it's running.
19:28	Hun	you can do similar stunts with a CL-Compiler if you try hard enough. it's usually not worth it
19:29	kib2	indeed, there are pros and cons with each system.
19:29	Hun	in my case, used ecl to compile lisp to c to binary. try to debug that when something crashes...
19:29	Raynes	Scala sends out shell scripts for compiling and such with it's distros.
19:30	Raynes	Simple "Scala scala.scala" wewt compiled.
19:30	gnuvince_	I think there was a discussion on the mailing list a few months ago on such a tool, and there were technical limitations to getting something to work
19:31	kib2	Raynes: good idea. But you'll then have to write such script for each platform you run on ?
19:31	Raynes	kib2: They do that, and have multiple distros for each platform.
19:32	Raynes	There /has/ to be some way to make it easier without completely screwing everything up.
19:32	Raynes	:\|
19:33	kib2	Raynes: why not, in fact you just have to write them once
19:34	Hun	be aware that stuff gets really ugly when there's a bug in that code-generation stage.
19:35	Hun	i had one that outputted the name of an internal symbol. i removed any reference to that symbol from my code, recompiled. it still was output
19:35	Raynes	I do know for people not coming from Java that the whole setup-clojure-with-perfected-classpaths thing jars them a good bit. When I came into Clojure I had no clue what a classpath was. I still haven't successfully compiled anything and jarred it. Of course I'm using netbeans and don't have too.
19:35	Hun	what happened? the compiler had an exotic crash and included the symbol in the linked in libraries
19:36	kib2	Hun: weird !
19:36	Hun	true. took me a whole day to sort that out
19:37	Hun	it's like that old story, about kernighan infecting his own compiler
19:37	Hun	my code was infecting other code, though i never wrote it that way
19:37	Hun	afterwards, the bug was in the statical library of cl-ppcre.
19:37	Hun	fun
19:37	kib2	Raynes: sure, classpaths are voodoo for me too.
19:38	Raynes	kib2: What got me is the whole, put Clojure here, start it with these classpaths make sure your class files are here and there, put this here and over there and then compile stuff.
19:39	durka42	what we need are some apt, yum, darwinports and windows installer packages
19:39	Raynes	It just makes you wish you could just type "Clojure Main.clj" ??? profit.
19:39	Mec	is there a way to for loop over the lines of a file?
19:40	durka42	well it's more like $ clojure -cp ??? profit
19:40	durka42	(doc line-seq)
19:40	clojurebot	Returns the lines of text from rdr as a lazy sequence of strings. rdr must implement java.io.BufferedReader.; arglists ([rdr])
19:41	Mec	yuck i remember bad things of java bufferreaders
19:41	durka42	then you should look at contrib.duck-streams
19:42	hiredman	Mec: what bad things?
19:43	Hun	here-be-dragons
19:43	Mec	like 5 lines of code to setup a reader just to read a file
19:43	Raynes	But this isn't Java.
19:43	hiredman	pfft
19:43	hiredman	yeah
19:43	Raynes	This is teh Clojure.
19:43	Mec	line-seq still wants a bufferedreader, so what do you do in clojure
19:43	kib2	Raynes: +1
19:43	Hun	at least you don't have to do the cylinder juggling by hand (which reminds me that i wanted to write a driver. damn)
19:44	durka42	use clojure.contrib.duck-streams/reader
19:44	Raynes	^
19:44	durka42	Attempts to coerce its argument into an open
19:44	durka42	java.io.BufferedReader. Argument may be an instance of Reader,
19:44	durka42	BufferedReader, InputStream, File, URI, URL, or String.
19:44	Mec	i dont have .contrib
19:44	Raynes	Mec: Get it.
19:44	durka42	well, you should get it
19:45	durka42	or you can do the gyrations (BufferedReader. (InputStream. (File. "blah...... or whatever
19:45	hiredman	(-> "file.txt" File. BufferedReader.)
19:45	hiredman	er
19:45	Raynes	(doc ->)
19:45	clojurebot	Threads the expr through the forms. Inserts x as the second item in the first form, making a list of it if it is not a list already. If there are more forms, inserts the first form as the second item in second form, etc.; arglists ([x form] [x form & more])
19:45	hiredman	you need a FileReader in there
19:46	Hun	that reads like forth :)
19:46	Mec	see what i mean :D why must reading a file be so difficult
19:46	durka42	(doc slurp)
19:46	clojurebot	Reads the file named by f into a string and returns it.; arglists ([f])
19:47	Mec	ya, right now im using (for [line (.split "slurp file.txt") "\r\n")])
19:47	Raynes	Then I just trim out the line breaks and slice it apart at the spaces.
19:47	hiredman	ugh
19:48	durka42	you should use (System/getProperty "line.separator") instead of "\r\n"
19:48	Raynes	...
19:49	durka42	Clojure=> (System/getProperty "line.separator")
19:49	durka42	"\n"
19:49	hiredman	reada whole file into a string is just icky
19:49	Raynes	durka42: Why didn't you tell me that /before/ I did this (.replaceAll (slurp f) "\r(\n)?" " "))?
19:49	Mec	that wouldnt work
19:49	Raynes	hiredman: It works pretty well for what I'm using the file for.
19:49	Mec	,(System/getProperty "line.seperator")
19:49	clojurebot	java.security.AccessControlException: access denied (java.util.PropertyPermission line.seperator read)
19:49	Mec	well it just returns nil for me
19:50	durka42	separator
19:50	Mec	ah hah
19:50	Mec	not being able to spell has some serious drawbacks
19:50	Raynes	Mec: Spell separator right :p
19:51	Raynes	Yay.
19:51	Raynes	Now I don't have to use a regex.
19:51	Raynes	<3
19:56	kib2	Have to go. Good night.
19:59	keithb	Ruby has IO.read to read the entire contents (like slurp), and IO.readlines to read the file into an array of lines. They're quite useful when the file is known to be of manageable size. A readlines type function would be useful. (Maybe I'll write one, but if someone wants to beat me to it... ;)
20:00	Mec	how come i keep getting unable to resolve classname for File, FileReader, and BufferedReader?
20:00	keithb	Mec, import java.io
20:00	durka42	(import '[java.io File FileReader BufferedReader])
20:01	achim_p	(doc line-seq)
20:01	keithb	That's what I meant. ;)
20:01	clojurebot	Returns the lines of text from rdr as a lazy sequence of strings. rdr must implement java.io.BufferedReader.; arglists ([rdr])
20:01	Mec	ClassNotFoundException
20:01	durka42	on which one
20:02	Mec	hmm i guess (import 'java.io) doesnt work, but (import '[java.io File FileReader BufferedReader]) does
20:02	durka42	clojure doesn't have an equivalent for java's "import java.io.*"
20:02	durka42	you have to name each class that you want
20:02	Mec	ah ok
20:03	keithb	Mec, sorry, I was a bit careless when i said import java.io, I should not have assumed anything...
20:03	Mec	no problem :D clojure api really needs an example for each function and it would clarify a lot
20:04	durka42	this is entirely true
20:04	durka42	Drakeson is compiling something i think
20:04	durka42	~api examples
20:04	clojurebot	excusez-moi
20:04	durka42	~examples
20:04	clojurebot	Excuse me?
20:04	durka42	what?
20:04	durka42	it used to know
20:05	durka42	clojurebot: api examples are http://en.wikibooks.org/wiki/Clojure_Programming/Examples/API_Examples
20:05	clojurebot	Huh?
20:05	durka42	clojurebot: api examples is http://en.wikibooks.org/wiki/Clojure_Programming/Examples/API_Examples
20:05	Mec	so after importing it should be (-> "file.txt" File FileReader BufferedReader line-seq) right? :D
20:05	clojurebot	'Sea, mhuise.
20:05	durka42	you may be able to skip the File. there
20:05	durka42	oh you will need dots after the classnames
20:05	durka42	to get the constructors
20:06	durka42	,(String "boo")
20:06	clojurebot	java.lang.Exception: Expecting var, but String is mapped to class java.lang.String
20:06	durka42	,(String. "boo")
20:06	clojurebot	"boo"
20:06	Mec	right
20:07	Mec	I dont know whats worse, (-> "file.txt" File. FileReader. BufferedReader. line-seq)
20:07	Mec	or (.split (slurp "file.txt") (System/getProperty "line.separator"))
20:08	hiredman	slurp is worse
20:10	hiredman	clojurebot: slurp?
20:10	clojurebot	No entiendo
20:10	hiredman	clojurebot: slurp is worse
20:10	clojurebot	'Sea, mhuise.
20:11	Mec	~def slurp
20:12	gnuvince_	(with-open [rdr (reader "/etc/passwd")] (doall (line-seq rdr)))
20:18	Mec	if I do java.io.FileReader i don't have to import it right?
20:20	gnuvince_	Nope
20:32	Mec	any reason java.util.GregorianCalendar might not exist?
20:33	drewr	Mec: Not with a recent JVM.
20:35	Mec	i've got java 6u10
20:37	Mec	gah inability to spell strikes again
20:37	Raynes	!
20:38	gnuvince_	Anyone knows what Rich said at QCon regarding Qi?
20:40	Raynes	Why would anyone acknowledge Qi's existence.
20:41	gnuvince_	Why?
20:41	gnuvince_	It's an interesting project; I'm especially interested in hearing about what Rich thinks of the optional static typing that Qi offers.
20:41	Raynes	Qi is boring :(
20:42	Raynes	Rich should add static typing, just to piss Stuart Halloway off.
20:43	Raynes	"Buy our book and you get to use Qi!"
20:44	gnuvince_	Raynes: regardless of the "boringness" of Qi, I think that if a language has interesting features, they should be investigated.
20:44	Raynes	I'm sorry, I just don't find it interesting.
20:44	gnuvince_	And I think Rich made it pretty clear that he's against static typing through-and-through.
20:45	gnuvince_	He's mentioned in the past that he would be interested in an � la carte static typing system, citing specifically Qi.
20:45	gnuvince_	Apparently this topic came up at Qcon, and I was wondering if anything more was said about the matter.
20:46	Raynes	Mention it on the group.
20:47	cmvkk_	would creating a system like that allow for a speed boost for statically typed forms and functions?
20:48	cmvkk_	or would it just be for the benefit of easier debugging or whatever.
20:49	albino	Why are we pissing off Stuart Halloway? IIRC he's the first one to write a book on clojure. It seem we ought to thank him for that not piss him off.
20:49	cmvkk_	actually, i was going to ask that too...
20:50	gnuvince_	albino: that was a joke
20:50	gnuvince_	albino: Stu's been through a lot of big changes
20:50	albino	gnuvince_: oh, it was lost on me, sorry
20:51	gnuvince_	cmvkk_: I don't know about performance, I think the more interesting aspect is being able to prove properties of the code at compile time to prevent errors at runtime.
20:51	Raynes	albino: It was a joke. Stu knows the consequences of writing a book this early. He knows it's going to be outdated probably soon after being distributed.
20:51	albino	free unit tests
20:52	cmvkk_	oh i get it, it would piss him off because he'd have to change the whole book. i thought maybe he didn't like static typing or something.
20:52	albino	if the system lets me specify types after the fact then I'm good with it
20:53	albino	I like to add my assertions after the initial problem is solved
20:53	Raynes	cmvkk_: I believe it's too late for him to change the book now anyways, when he updated it for lazy sequences he said it was just in time then.
20:53	Raynes	If he would have made the book open on a website like real world haskell, he could of updated it any time :\.
20:53	cmvkk_	i wonder what that means for the impact of deciding to make breaking changes?
20:53	Raynes	But, not my story.
20:54	cmvkk_	like, maybe we're less likely to see them now that the way it is now is going to be hardwritten into a book.
20:54	Raynes	I feel if Rich decides to make a change that book darn sure wont stop him.
20:55	albino	I must have missed something on the lists. When did all this tension happen between Stuart's book and Rich's language
20:55	cmvkk_	i certainly think he would take the book into account...i think he looks at the community when he makes decisions like that
20:56	gnuvince_	albino: no "tension"; Rich took the language where it needed to go, and Stu had to rewrite many chapters to reflect those changes.
20:56	albino	gnuvince_: sounds fair to me, did Stu complain a lot when he had to make those changes?
20:57	gnuvince_	Stu has joked about it, but I'm sure he feels it's more important that the language be done right than that his book be up to date for a longer period of time.
20:57	Raynes	cmvkk_: Yes of course. Rich almost always looks to the community for opinions. I <3 Rich. I'm just saying that if it was important enough the book would be irrelevant.
20:57	Raynes	gnuvince_: Exactly.
20:57	gnuvince_	No complaining, he took it like a champ.
20:58	albino	sounds like I need to buy a copy
20:58	albino	or digital copy if it's not in dead tree form yet
20:58	Raynes	albino: You can buy both and get the book when it's in dead tree form.
20:59	gnuvince_	albino: both are available.
20:59	Raynes	You save ca$h that way too.
20:59	Raynes	Oh really?
20:59	Raynes	Cool.
21:00	gnuvince_	I meant that you can have the book in digital and dead tree format. The beta PDF is available now, the book in a couple months maybe?
21:00	Raynes	Oh, yeah, that's what I was saying.
21:06	Mec	cant you have clojure use static typing with metadata?
21:08	hiredman	Mec: more or less
21:08	hiredman	the main issues is fn's interface is defined in turms of Object
21:09	hiredman	so there is overhead for passing primitives through functions
21:09	Raynes	Haha turms. That made me giggle.
21:10	Mec	even if you define a function like: (defn foo [#^String s])
21:10	Jedi_Stannis	the tag metadata gives you speed ups, but it doesn't type-check at compile time. If you want to learn about static type checking, you shoul dlook into haskell - it has a real, powerful type checking system. java/c/c++ type checking is not very good in comparison
21:11	hiredman	Mec: I am not 100% on this, but I believe the type hinting only helps within the function
21:11	hiredman	but String is not a primitive so it would not matter in that case
21:11	hiredman	,(ancestors String)
21:11	clojurebot	#{java.lang.Comparable java.lang.Object java.lang.CharSequence java.io.Serializable}
21:12	Mec	ah
21:12	Raynes	Clojure will poke you if you get a type screwed up. Haskell will beat your ass in a dark alley and then cut you.
21:12	Raynes	He might even piss on you.
21:12	Jedi_Stannis	I took a break from clojure for a little bit to explore with haskell, it's a really cool language
21:12	Raynes	Jedi_Stannis: It's the other way around for me.
21:13	Mec	how is it's type checking different from java/c/c++?
21:13	Jedi_Stannis	made me appreciate functional style a lot more
21:13	hiredman	rhickey has mentioned possibly making special purpose fn interfaces, for say functions that take doubles as arguments and return a double
21:13	Raynes	I took a break from Hasekll to explore Clojure and here I am.
21:13	hiredman	Mec: you don't have to do it?
21:13	hiredman	oh
21:13	hiredman	you meant haskell
21:13	Mec	yes
21:13	Jedi_Stannis	but I miss the dynamic nature of lisp and the homoiconicty
21:13	Raynes	Mec: If Java's type system is a dinosaur, then Haskell's is GODZILLA.
21:14	p_l	wasn't it possible to make haskell's type system turing-complete?
21:14	hiredman	(a nuclear dinosaur)
21:14	Jedi_Stannis	Mec: its very hard to explain, you really have to look into it, its very in depth
21:14	Raynes	p_l: Yes.
21:14	Mec	i know some newer feature of c++ was touring complete, but i cant remember the name of it... something with <>
21:15	p_l	otoh, clojure works on JVM, which has many advantages :D
21:15	Jedi_Stannis	ill try to explain though: it has type inference, so you can get by without declaring types if you don't have to
21:15	p_l	Mec: templates :P
21:15	Mec	ya c++ templates are turing complete
21:15	p_l	and possibly the scariest part of the language
21:15	Raynes	p_l: Plenty of advantages with some disadvantages such as no TCO and the stupid classpath stuff.
21:16	p_l	Raynes: it gives me possibility to target places I can't with CL or Haskell (or "can but it's a royal PITA and/or expensive")
21:16	p_l	frankly speaking, my main interest right now is in making android apps :)
21:16	Jedi_Stannis	raynes: I agree on the cp stuff, but once you get it right you can stop worrying about it. and no tco is somewhat overcome with recur, trampoline (although I agree, its inelegant)
21:18	hiredman	the classpath stuff is not that bad
21:18	Raynes	The classpath stuff itself is not that bad, the fact that in order to compile /anything/ you have to worry about it that's bad.
21:18	hiredman	you just need to know how the classpath works
21:18	Jedi_Stannis	its not that bad, but its not good
21:19	hiredman	shrug*
21:19	hiredman	Works For Me
21:19	Raynes	It's just weird to me to have to set up a directory structure and stuff. I'm spoiled by just calling a compiler and compiling shit.
21:19	Jedi_Stannis	its kinda a pain for those not coming from java land
21:19	hiredman	clojurebot: works on my machine is <reply>http://haacked.com/images/haacked_com/WindowsLiveWriter/IConfigMapPathIsInaccessibleDueToItsProt_1446B/works-on-my-machine-starburst.png
21:19	clojurebot	c'est bon!
21:22	hiredman	not being able to dynamically alter the classpath in a reliable way is kind of a pain
21:23	hiredman	it would be neat to have compiled class written into a jar
21:23	hiredman	classes
21:25	hiredman	hmm
21:25	hiredman	~def gen-class
21:30	Raynes	Liskell is neat.
21:31	p_l	Jedi_Stannis: I'd say that's because other environments don't have Java land problems :P
21:31	Jedi_Stannis	p_l: agreed
21:32	Raynes	p_l: Enclojure eliminates that problem for me, hence the reason I'm still using Clojure and loving it all the way.
21:33	Jedi_Stannis	never found an IDE I like more than using vim, good thing for vimclojure : )
21:34	Raynes	I use Emacs for Haskell and Factor and usually anything else that isn't something to do with the JVM.
21:35	Jedi_Stannis	I've never used emacs, but im pretty happy with the features of vim clojure
21:35	Jedi_Stannis	maybe its better that I don't know what im missing out on
21:36	Raynes	Yeah, I get told everything I'm "missing out on" by using Enclojure whenever Lau_Of_DK is around.
21:36	Raynes	I just smile and nod.
21:36	Raynes	At least whenever I mention I'm using Enclojure.
21:37	Jedi_Stannis	does enclojure have any sort of integrated repl?
21:37	Raynes	Yes.
21:37	Raynes	And you can M-x load files into it too ^_^
21:37	Raynes	Scratch that.
21:38	Raynes	M-l
21:38	Raynes	:)
21:39	Jedi_Stannis	that's good then, I feel like that's the killer feature
21:39	Raynes	Damn right.
21:39	Raynes	Couldn't live without it.
21:40	AntonyBlakey	raynes: as an enclojure user, do you know where the instructions to build/install from tip are? I can't find any and I'd like to use it with tip NetBeans.
21:41	Raynes	What's tip? o_o
21:41	AntonyBlakey	head
21:42	AntonyBlakey	Latest from SVN, rather than prebuilt
21:42	Raynes	Oh.
21:42	Raynes	I believe there is a post on the group somewhere that links to build instructions.
21:43	Raynes	Oh yeah, that was my post.
21:44	AntonyBlakey	got it - Eric Thorsen ?
21:44	AntonyBlakey	Dec 24 2008
21:44	Raynes	http://groups.google.com/group/enclojure/browse_thread/thread/93ecc3522607c5c9?hl=en
21:44	Raynes	That was it.
21:44	Raynes	I never actually built it though.
21:44	AntonyBlakey	Was expecting instructions on the site, sorry, should have searched the group.
21:44	Raynes	I'm too good to build my own software.
21:45	AntonyBlakey	:) Current build doesn't work with nice new OSX L&F in NetBeans.
21:46	gnuvince_	How do you declare a case-insensitive pattern?
21:46	gnuvince_	re-pattern doesn't take any extra arguments
21:47	Chouser	#"(?i)foobar"
21:47	Raynes	(?i)
21:47	Raynes	FUCK.
21:47	Raynes	-_-
21:47	Raynes	:(
21:47	Chouser	sorry, I'll leave you to it. :-)
21:48	Raynes	Chouser: I think you look into the future and find out what questions will be asked and keep the answers in a text file to copy and paste when needed.
21:48	Raynes	:\|
21:50	Raynes	,(.replaceAll "(?i)chouserbot" "CHOUSERBOT" "Chouser")
21:50	clojurebot	"(?i)chouserbot"
21:50	Raynes	,(.replaceAll #"(?i)chouserbot" "CHOUSERBOT" "Chouser")
21:50	clojurebot	java.lang.IllegalArgumentException: No matching method found: replaceAll for class java.util.regex.Pattern
21:51	Raynes	:\| It worked on my machine.
21:51	danlarkin	Raynes: please stop with the profanity
21:51	Raynes	Er...
21:52	hiredman	Raynes: you have the arguments in the wrong order
21:52	Raynes	hiredman: I just realized that. :\| I've been playing with factor all day.
21:52	Raynes	It's got me thinking all postfixy.
21:53	Raynes	,(.replaceAll "CHOUSERBOT" "(?i)chouserbot" "Hai Chouser :)")
21:53	clojurebot	"Hai Chouser :)"
22:10	Mec	J looks a whole lot like a comic character throwing up
22:36	hiredman	hmmm
22:37	hiredman	clojurebot: how much do you know?
22:37	clojurebot	I know 5 things
22:37	hiredman	uh
22:37	hiredman	that is not good
22:39	hiredman	how the hell
22:40	Mec	clojurebot: what do you know
22:41	hiredman	~how much do you know?
22:41	clojurebot	I know 203 things
22:41	hiredman	restored from an old backup
22:41	hiredman	but, uh, scary
22:42	hiredman	how did that happen
22:42	albino	he's not serializing his knowledge?
22:42	Mec	is clojure.contrib on google code?
22:42	tashafa	should be
22:43	tashafa	anyone know if there is an emacs irc mode?
22:43	hiredman	albino: he is, but something happened to the file
22:44	hiredman	this machine had an unscheduled power cycle
22:44	hiredman	very annoying
22:45	gnuvince_	tashafa: there's erc and rcirc. rcirc is included with Emacs, just to M-x irc
22:45	gnuvince_	s/to/do
22:46	hiredman	clojurebot: slurp?
22:46	clojurebot	Titim gan �ir� ort.
22:46	albino	ahh, time for an ups
22:49	hiredman	~latest
22:49	clojurebot	latest is 1327
22:51	Mec	any simple way to flatten 1 layer of a list?
22:51	Chouserbot	apply concat
22:51	Mec	ah ha, thanks
22:54	Mec	i thought count was O(1)
22:55	Mec	oh nvm, lazy squence
22:55	Chouserbot	you can find out with 'counted?'
22:56	Chouserbot	,(counted '(1 2 3))
22:56	clojurebot	java.lang.Exception: Unable to resolve symbol: counted in this context
22:56	Raynes	Hey, when we get to rev 1337 let me know, because I'm celebrating.
22:56	Chouserbot	,(counted? '(1 2 3))
22:56	clojurebot	true
22:56	Mec	hmm i dont have counted?
22:56	Chouserbot	,(counted? (map identity '(1 2 3)))
22:56	clojurebot	false
22:57	Chouserbot	'counted?' was introduced in svn rev 1268
22:57	tashafa	thanks gnuvince
22:58	tashafa	,(doc counted?)
22:58	clojurebot	"([coll]); Returns true if coll implements count in constant time"
22:59	digash	is there a function somewhere to read-lines from the stream and re-find patterns w/ ability to stop at the first match?
23:03	Mec	if i want to (reduce +) a sequence that is too large for memory, I cant define it can I
23:04	hiredman	filter is lazy
23:04	hiredman	Mec: nope
23:04	Chouser	digash: (some #(re-find #"^chouser.*" %) (line-seq (BufferedReader. (FileReader. "/etc/passwd"))))
23:04	hiredman	so (comp first filter)
23:05	hiredman	~how much do you know?
23:05	clojurebot	I know 225 things
23:06	digash	Chouser: i was looking at clojure.contrib.duck-streams/read-lines but could not see how to close the stream if match is found.
23:06	digash	Chouser: thank you, i will use line-seq.
23:07	Chouser	good point, I always forget that.
23:07	Mec	hmm i thought numbers were automatically promoted to bignum, but I just got a wraparound from a large addition
23:08	dreish	Sounds like a bug.
23:10	Chouser	Mec: what opeartion? 'inc'?
23:10	Mec	(reduce +)
23:11	dreish	,(reduce + (range 10000000))
23:11	clojurebot	49999995000000
23:11	Mec	that was fast
23:12	Mec	,(reduce + (range 48000000))
23:12	clojurebot	Execution Timed Out
23:13	dreish	,(Thread/sleep 5000)
23:13	clojurebot	nil
23:13	digash	,(with-open [rdr (java.io.BufferedReader. (java.io.FileReader. "/etc/passwd"))] (some #(re-find #"^chouser.*" %) (line-seq rdr)))
23:13	clojurebot	java.security.AccessControlException: access denied (java.io.FilePermission /etc/passwd read)
23:14	digash	oops, did not mean to raise some security alarms
23:18	dreish	,(.. Runtime getRuntime availableProcessors)
23:18	clojurebot	1
23:18	dreish	Wow, where do you get a one-core machine these days?
23:19	Mec	mine is one core :*(
23:20	Mec	is it even usefull to have multiple threads on a single core machine, with pipelining and whatnot
23:22	Chouser	Mec: it's useful to have threads blocking on IO instead of having to manage a select loop yourself.
23:23	Mec	true, but just calculation performance wise?
23:24	Chouser	You could profile it, but I'd be a bit surprised if there a noticable improvment.
23:46	hiredman	man