#clojure – 2010-01-06

2010-01-06

00:31	konr	How can I add {:c "Camel"} to the right place at {:language {:letters {:a "ant" :b "bee"} :numbers #{1 2 "many"}}}?
00:41	arohner	konr: update-in
00:41	arohner	(update-in [:language :letters] assoc :c "Camel")
00:43	konr	arohner: thanks! I wasn't aware of that function
00:47	leo	Hey guys, When a clojure file containing (:import com.foo Bar) loads, then loading the class also runs all its static initializers during compile time. How do people work around this?
02:13	TheBusby	is there a simple way to change the "rate" of a lazy sequence?
02:14	TheBusby	for example, if you have a text file with two columns per line
02:14	TheBusby	and you use (read-lines in) to read in the data line by line
02:14	TheBusby	could you return a lazy sequence of aggregated data?
02:15	TheBusby	where the summation of each column would be returned when an empty line occured?
02:15	hiredman	that has nothing to do with lazy-sequences
02:15	TheBusby	if the file was 1TB
02:16	hiredman	and everything to do with the function you use to turn a file into a lazy sequence
02:16	TheBusby	you'd need to iterate over it
02:16	TheBusby	er, if your input was a lazy sequence though
02:16	hiredman	a lazy sequence is just two methods first() and rest()
02:16	hiredman	the rest is all other stuff
02:17	hiredman	(not rest(), rest)
02:17	TheBusby	I'm probably thinking about this incorrectly then
02:17	hiredman	sure
02:17	TheBusby	if you used map() for everyline of input you'd have a line of output
02:17	TheBusby	this would be processed line by line and the entire collection would not be stored in memory
02:17	hiredman	eh?
02:18	somnium	you could do something like (repeat (read-line-fn)) and then take-n ..., but that opens up other issues
02:18	hiredman	map is a fn that consumes seqs and returns a lazy seq
02:19	TheBusby	map returns an element for every element it consumes for the seq though right?
02:19	hiredman	yes
02:19	TheBusby	so it's 1 to 1
02:19	TheBusby	reduce takes many inputs and will return one value right?
02:20	somnium	reduce isnt lazy though
02:20	TheBusby	many to one
02:20	hiredman	it's better to start off with your problem instead of, think sort of halfway through, then presenting the halfway through
02:20	TheBusby	okay
02:20	TheBusby	I have two columns of numbers
02:20	TheBusby	where the first column is a non-unique record number
02:21	TheBusby	and the second contains related information
02:21	hiredman	is this sorted? all the records with the same record number are adjacent?
02:21	TheBusby	I'd like to read in the list, and have a lazy sequence return a map of all the related information for that record_number
02:22	TheBusby	correct, sorted
02:22	TheBusby	Example
02:22	TheBusby	1 10
02:22	TheBusby	1 20
02:22	TheBusby	1 30
02:22	TheBusby	1 40
02:22	TheBusby	2 5
02:22	TheBusby	2 6
02:22	TheBusby	etc
02:22	hiredman	you can stop
02:23	hiredman	you are going to have to write a custom lazy-seq function, either on top of line-seq, or directly over the bufferedreader/file/etc
02:24	TheBusby	I was hoping I could write a generic function that would accept a function and a sequence and return a new sequence defined by the function
02:24	hiredman	…
02:24	TheBusby	I haven't thought of a good way to do this yet, nor know if it's actually possible
02:25	TheBusby	is there a simple way to do the example I provided above?
02:26	TheBusby	this is so trivial to do in ruby...
02:26	hiredman	well, go to #ruby then
02:27	TheBusby	sorry, I didn't mean to offend
02:28	TheBusby	what I was trying to communicate was that this problem seems simple but appears very hard to do in a functional way
02:28	hiredman	it isn't
02:28	hiredman	it's just a loop
02:29	somnium	something like (map line-processor-fn (BufferedReader. (FileReader. "file"))) no?
02:29	hiredman	nope
02:29	TheBusby	can't use map unfortunately since it's a 1->1 transform
02:30	hiredman	he is try to group lines
02:30	somnium	er, line-seq around the end, but doesnt duck-streams have something for this?
02:30	somnium	ah
02:32	TheBusby	I could process everything inside one big loop, but I was hoping there might be some way to have it return another lazy-seq instead
02:32	somnium	TheBusby: so you want to produce a new seq with nodes like [:record-
02:33	somnium	number data data data] ?
02:33	TheBusby	a new seq that's composed of multiple elements of another seq
02:33	TheBusby	correct
02:33	hiredman	lisppaste8: url?
02:34	hiredman	gah
02:34	lisppaste8	To use the lisppaste bot, visit http://paste.lisp.org/new/clojure and enter your paste.
02:34	hiredman	too late
02:34	hiredman	something like http://gist.github.com/270111
02:36	somnium	TheBusby: is data on one line separated by white-space?
02:36	TheBusby	tab delimited
02:36	hiredman	gar
02:37	TheBusby	but multiple lines make up a record
02:37	somnium	?
02:37	hiredman	emacs seems to have decided to ignore my font preferences
02:37	hiredman	vexing
02:38	TheBusby	oh, that looks very interesting
02:39	hiredman	f assumes that the seq has already been turned into a bunch of [id value] pairs
02:40	TheBusby	in the returned lazy seq you'd need to (cons d (f xs a '(b))) wouldn't you?
02:41	TheBusby	I'll try it and see if memory is okay
02:41	TheBusby	thank you!
02:42	hiredman	eh?
02:42	hiredman	no
02:42	TheBusby	wouldn't "b" be dropped otherwise?
02:42	hiredman	I don't think so? (untested, eats babies)
02:43	hiredman	oh right
02:43	hiredman	yes
03:04	LauJensen	Morning all
03:27	TheBusby	hiredman: does recur not accept variable numbers of arguments?
03:28	TheBusby	I was trying the code you were nice enough to provide, and ran into this error "Mismatched argument count to recur, expected: 2 args, got: 3"
03:29	TheBusby	I tested the idea with this (defn t [a b & [c d]] (recur 1 2 3 4)) and got the same error
03:30	hiredman	recur might not like that destructuring
03:31	TheBusby	the docs says the arity has to match, I guess they just need to be required then
03:31	hiredman	bah
03:31	hiredman	it's the vararg
03:32	TheBusby	ahh, even removed though it has an NPE
03:33	TheBusby	http://pastie.org/768568
03:33	TheBusby	seems to NPE when it asks for the rest
03:36	hiredman	start putting in printlns
03:36	hiredman	to figure out where the nil is
03:40	TheBusby	ahh, it doesn't appear to like the end of the input sequence
03:56	TheBusby	hiredman: works great, no memory issues; thank you so much!
05:49	arj_	I'm trying to understand thread-local and set!
05:49	arj_	first thing I wonder is why the documentation for binding doesn't mention that they are thread-local?
05:50	ordnungswidrig	afaik they are thead-local, yes
05:50	arj_	second thing is if there is a way to create thread-local bindings for new variables
05:51	arj_	so that I can set! them
05:51	arj_	let doesn't work and binding needs already def'ed variables
05:53	ordnungswidrig	(binding [x 1] (set! x 2)) doesn't work?
05:53	somnium	not if x is not a var
05:54	arj_	exactly
05:56	somnium	clojure frowns on imperative code -- locals are asways immutable
05:56	somnium	arj_: why do you want to call set! on something that isnt a var?
05:58	arj_	was I was thinking was something like init a local var at the top of a function, then change that in the function and return it
05:58	ordnungswidrig	arj_: that's sounds naughty
05:58	somnium	vars are always top-level, afaik
05:59	somnium	reference types are available for what you describe
05:59	arj_	yeah so far I have had good luck rewriting the functions in a more functional style
05:59	somnium	but again, why do you want to do that?
06:00	arj_	reference types?
06:00	somnium	atom, ref, agent etc
06:00	arj_	ah yes, but they are quite verbose
06:01	somnium	they scream "Mutable State Here!", and this is widely regarded as a good thing
06:01	ambient	oh how i long for the days of single thread of execution :p
06:01	somnium	ambient: javascript!
06:01	somnium	:)
06:02	somnium	when IE supports concurrency it will all be over
06:04	praptak	somnium: you can still run into concurrency problems with JS. Asynchronous calls.
06:05	praptak	asynchronous calls + fast-clicking impatient users :)
06:07	somnium	praptak: true, but you can never really access a var simultaneously
06:46	esj	My REPL is complaining about an exception in some code of mine :"clojure.test$test_var__8905$fn__8907.invoke (test.clj:643)", where test.clj has about 100 lines of code. What am I missing here ?
06:47	esj	is it really saying the error is on line 643? If so how ?
06:48	esj	oh, ignore me, stupid question.
07:02	praptak	About (doc doto) - is "in the from of" a typo of "in the front of"?
07:03	the-kenny	,(doc doto)
07:03	clojurebot	"([x & forms]); Evaluates x then calls all of the methods and functions with the value of x supplied at the from of the given arguments. The forms are evaluated in order. Returns x. (doto (new java.util.HashMap) (.put \"a\" 1) (.put \"b\" 2))"
07:03	praptak	sorry, "at the from of"
07:04	the-kenny	Looks like a mistake
07:05	praptak	Or an obscure idiom, hence my question.
07:32	esbena	I have a lot of mutually recursive functions, do I really have to 'prototype' them before use - or is there some way to tell the interpreter to look forward (using slime)
07:36	Chousuke	you need to declare them
07:37	Chousuke	you could also evaluate the file out of order manually, but that's not very practical
07:38	Chousuke	there's the declare macro for creating unbound vars, you can use that.
07:39	ordnungswidrig1	how can I embed unicode character in strings in clojure?
07:40	Chousuke	just type it in? :)
07:41	Chousuke	there's also the \UNNNN escape
07:41	AWizzArd	ordnungswidrig1: you can also use the \u1234 syntax, which will add the unicode char which has the hex code 1234
07:41	Chousuke	oh, it was a small u? hm.
07:41	AWizzArd	tho this gives you access to "only" 65k chars, and not the full range
07:41	esbena	Chousuke: thank you for the declare macro - I used empty function definitions before!
07:41	AWizzArd	,\u65
07:41	clojurebot	Invalid unicode character: \u65
07:41	Chousuke	esbena: yeah, there's no need for the function to actually be defined in any way
07:42	Chousuke	esbena: but the var must exist
07:42	AWizzArd	,\U54
07:42	clojurebot	Unsupported character: \U54
07:42	Chousuke	need four numbers
07:42	AWizzArd	yes
07:42	Chousuke	,\u0054
07:42	clojurebot	\T
07:42	ordnungswidrig1	ah, recompile is your friend...
07:42	ordnungswidrig1	thanks
07:42	AWizzArd	,\U0054
07:42	clojurebot	Unsupported character: \U0054
08:08	arj_	how do I add to the end of a collection?
08:08	arj_	collection is vector
08:09	_fogus_	,(conj [1 2] [3 4])
08:09	clojurebot	[1 2 [3 4]]
08:09	neotyk	,(conj [1 2] 3)
08:09	clojurebot	[1 2 3]
08:09	djork	,(conj '(1 2) 3)
08:09	clojurebot	(3 1 2)
08:09	djork	:-)
08:10	djork	Just FYI
08:10	arj_	ah yeah
08:10	arj_	thanks :)
08:10	_fogus_	conj works like push for vectors
08:11	djork	(conj {:x :y} [:j :k])
08:11	djork	,(conj {:x :y} [:j :k])
08:11	clojurebot	{:j :k, :x :y}
08:11	djork	there we go
08:11	djork	conj is 'cpmkpom
08:11	djork	OMFG CAN I TYPE?
08:11	djork	'conjoin'
08:11	djork	also a pun, if I am not mistaken
08:12	djork	'cons' is a historic Lisp function and intentionally replacing the 's' with a 'j' would make a good Clojure pun if one had that in mind
08:13	djork	(although cons is still there for seqs)
08:13	arj_	it's the evil filter that changes my collection into a list
08:13	_fogus_	Wouldn't have to be cjons?
08:13	neotyk	,(class (conj {:x :y} [:j :k]))
08:13	clojurebot	clojure.lang.PersistentArrayMap
08:17	neotyk	,(doc list*)
08:17	clojurebot	"([args] [a args] [a b args] [a b c args] [a b c d & more]); Creates a new list containing the items prepended to the rest, the last of which will be treated as a sequence."
08:18	neotyk	arj_: is that what you need?
08:25	arj_	neotyk: I wrapped it in a vec, just a bit wierd that it changes my seq type
09:16	defn`	(defn discover-namespace [nspace] (vals (ns-publics nspace))) -- Instead of using this function like: (discover-namespace 'clojure.core), How do I use it like: (discover-namespace clojure.core)?
09:17	defn`	In other words, how do I quote nspace in my function to get the value of nspace and append a ' to it
09:18	Chousuke	you need to make discover-namespaces a macro :/
09:18	Chousuke	-s
09:18	defn`	that'll be a good learning experience
09:18	defn`	would this be a case for unquote splicing?
09:18	Chousuke	nah.
09:19	Chousuke	you can actually use the function as the macro driver. just expand the macro call to a call to discover-namespace with the symbol quoted :)
09:19	defn	whoa
09:20	Chousuke	(defmacro discover-namespace-m [ns] `(discover-namespace '~ns)) like that.
09:21	defn	what is the m? for macro?
09:21	Chousuke	yeah.
09:21	defn	i just discovereda similar convention for predicates
09:21	defn	(defn abc-p)
09:21	defn	although in clojure it makes more sense to use ?
09:21	Chousuke	it's not a convention though. Usually you'd name the macro discover-namespace and the driver function discover-namespace*
09:22	defn	why not here?
09:22	Chousuke	because your function was already named discover-namespace :)
09:22	defn	oh...right :)
09:22	defn	thanks for the help Chousuke
09:22	Chousuke	in this case using the driver function approach is a bit overkill though. I'll leave the other solution as an exercise :P
09:22	defn	oh -- one more question for you which is painful to even ask...
09:23	defn	Chousuke: http://gist.github.com/270299
09:24	defn	That is probably the ugliest thing I've ever written. Any ideas?
09:24	chouser	maybe use 'format'?
09:24	the-kenny	defn: split the function into multiple function
09:24	chouser	use keyword destructuring
09:24	chouser	nah
09:24	Chousuke	format and map destructuring might help, yes.
09:26	chouser	defn: you really want a vector back, and not a single string or print?
09:26	Chousuke	,(let [{:keys [ns name arglists macro]} {:ns 'foo :name 'bar}] [ns name arglists]); did it go something like this?
09:26	clojurebot	[foo bar nil]
09:26	defn	Chousuke: i end up writing the lines to a file, so having it split up is hand
09:26	defn	handy
09:27	defn	but i could just as well write the string
09:27	Chousuke	that way, you can at least get rid of the (:foo (meta v)) stuff, which should improve things a lot
09:27	defn	yeah definitely Chousuke
09:31	defn	maybe i could use templates to make the functions for each (:foo (meta bar))
09:33	arj_	how expensive is: (vec (filter #(blah) myvector)), will it create a temporary seq, and will it create a new vector? I guess the new vector will share a lot with the old, so it might not be that expensive. I'm thinking of big-O
09:34	the-kenny	arj_: filter is lazy
09:34	the-kenny	(doc filter)
09:34	clojurebot	"([pred coll]); "
09:34	the-kenny	,(doc filter)
09:34	clojurebot	"([pred coll]); "
09:34	chouser	arj_: O(n)
09:34	defn	it wont create a new vector
09:34	defn	will it?
09:35	chouser	yeah, the new vector will not share any structure with the old vector, though the values themselves will not be copied, just references to them.
09:36	arj_	aha thanks
09:37	somnium	does chunking come into play on the performance of things like that? (vec (filter pred [1 ... n])) ?
09:37	chouser	vectors are no good at removing items from anywhere except the right-hand end, so you're not going to do much better.
09:37	chouser	somnium: yes, that example actually will use chunked seqs for the filter and transients to build the new vector
09:37	Chousuke	hmm
09:37	Chousuke	~def vec
09:57	chouser	defn: the nature of the problem is a bit messy, but is this any better? http://gist.github.com/270300
09:58	chouser	I'm not sure it is. my version is no shorter, and arguably less regular
10:00	defn	chouser: it's okay -- i think im going to keep it how it is
10:01	defn	while I like your way quite a bit, it seems to make it a fair bit harder to read and understand at first glance
10:01	defn	while my function is not pretty, it is definitely easy to understand what's going on
10:01	chouser	defn: yep
10:01	chouser	I was hoping the angle I was taking would result in a smaller function, but having failed that it just looks more complicated.
10:01	defn	chouser: how would you enumerate all of the namespaces after the dot, like clojure.core, set, xml, etc.
10:02	chouser	defn: search the classpath. :-/
10:02	defn	ewwwwwww
10:03	defn	there's got to be a better way!
10:03	chouser	I don't think they're all listed anywhere else.
10:07	defn	chouser: so in order for me to programatically find all of the clojure.* namespaces i have to use the classpath?
10:08	defn	i want a list like '(clojure.core, clojure.set, clojure.xml, clojure.zip, clojure.main)
10:08	chouser	might be best of just listing them manually
10:09	chouser	you don't wankt walk, test, inspector... ?
10:09	defn	oh sure, yes i do
10:09	defn	that's just a short example of what im trying to accomplish
10:09	defn	yeah, although i was hoping to abstract this sufficiently so eventually someone could drop this jar in their undocumented (un-exampled) project, and use it as sort of a way of bootstrapping your project with editable example documentation
10:10	defn	so you could drop this in...say...your own library you wrote, and type java -jar docs.jar --new .
10:10	chouser	those namespaces are just files on disk (in a jar or not) until they get loaded. They're not loaded automatically.
10:11	chouser	so the only place to look for them is on disk, in a jar or not.
10:20	defn	chouser: it seems like I can do everything except programatically discover namespaces -- would it be possible to introduce some sort of identifier which would allow that sort of behavior?
10:20	defn	like metadata for sub namespaces
10:21	chouser	not sure what you mean. where would you but such an identifier?
10:21	chouser	put
10:21	defn	not sure -- that's why im asking
10:21	defn	maybe it could be an optional piece of the (ns) macro
10:23	defn	im not really looking to do anything other than have a way of saying "this clojure.xml ns is part of clojure.*"
10:23	chouser	but "clojure" is not a namespace for "clojure.xml" to be a sub-namespace of.
10:24	chouser	defn: does the lien config file name all the namespaces the project includes? if so, that might be an approach.
10:25	defn	it wont solve the clojure.* problem, but yes ive considered doing something like that -- basically the :main that is referenced in the lein project becomes the jumping off point for discovering other related namespaces
10:39	somnium	defn: if you're intending to use as an autodoc maybe it would be easier to (file-seq "./src") or something similar
10:46	defn	somnium: yeah not a bad idea
10:46	defn	somnium: are you familiar with compojure at all?
10:47	somnium	defn: familiar with the pats I use :)
10:47	somnium	parts that is
10:48	defn	heh, im a newb -- trying to figure out how to do what i need to do, but not very clear on how to go about accomplishing it
10:48	somnium	defn: shoot
10:49	defn	i have this set, and i want to create a route which will render some html if someone sends a GET request to /docs/:name
10:49	defn	where :name is one of the items in the set
10:49	defn	my only web framework experience is with rails, which compojure certainly is not
10:51	somnium	defn: something like (GET "/docs/" (do-something (: params))) would be my first shot
10:51	defn	would it be something like: (defroutes doc-routes (GET "/docs/:name" (doc-page (;anme params))))
10:51	defn	ack sorry lag
10:51	somnium	yeah, that would work
10:52	defn	what kind of special magic do i need in the doc-page fn?
10:53	somnium	? you can just return a string afaik
10:53	defn	heh, i think im making this too hard
10:53	somnium	thats basically what (html :p "foo") does
10:53	defn	sure sure
10:53	defn	what type is the param?
10:54	somnium	params is a map that gets magically added into scope by the defroutes macro
10:57	ambient	is there a default location in Leiningen where I should put my classes folder and can swank-clojure automatically use it?
10:57	ambient	when compiling clojure classes
10:57	somnium	ambient: I think its ./classes, thats what '$lein new' creates
11:16	konr	Is there a way to convert to, eg, 4 to :4 besides converting it to another type first?
11:18	ambient	(keyword (str 4)) seems to work
11:18	ambient	but yeah, another type
11:24	CalJunior	,(def tiger (atom ["elin" "rachel" "jamie" "kalika" "mindy" "holly"]))
11:24	clojurebot	DENIED
11:24	CalJunior	ok then: (def tiger (atom ["elin" "rachel" "jamie" "kalika" "mindy" "holly"]))
11:24	CalJunior	(dosync (assoc @tiger 0 "cori"))
11:24	CalJunior	@tiger
11:25	CalJunior	["elin" "rachel" "jamie" "kalika" "mindy" "holly"]
11:25	CalJunior	basic clojure stuff I'm trying to wrap my head around.
11:25	CalJunior	how do get @tiger to change.
11:25	CalJunior	?
11:26	CalJunior	I mean the vector not the man
11:27	CalJunior	is dosync the way to go in this case?
11:27	ambient	,(def foo (future (+ 1 2)))
11:27	clojurebot	DENIED
11:27	ambient	:(
11:27	ambient	,(let [ foo (future (+ 1 2))] @foo)
11:27	clojurebot	3
11:29	somnium	CalJunior: you need to use swap! or reset! to operate on atoms
11:30	somnium	and you dont need to use dosync (though you can)
11:31	Chousuke	CalJunior: @tiger gets you the value, you can't change that
11:31	Chousuke	CalJunior: what you can change is the value that tiger (the atom) points to
11:32	Chousuke	,(let [a (atom 1) b @a] (swap! a inc) [@a b])
11:32	clojurebot	[2 1]
11:33	CalJunior	,(let [tiger (atom ["elin"])])
11:33	clojurebot	nil
11:33	Chousuke	what (assoc @tiger 0 "cori") does is it reads the value of tiger, then creates a new value from that. the atom itself is never involved after the value is read
11:34	Chousuke	,(let [t (atom ["fred"])] (swap! t assoc 0 "ethel") @t)
11:34	clojurebot	["ethel"]
11:35	Chousuke	atoms are not coordinated so you don't need dosync. :)
11:35	CalJunior	thanks!
11:36	CalJunior	are atoms the most efficient way to do this?
11:36	Chousuke	well, they're the simplest
11:36	Chousuke	so probably.
11:36	Chousuke	but if you have two threads modifying the same reference, you might need refs to coordinate the change
11:37	CalJunior	I need to keep track of hundreds of 'identities' that change very rapidly. over multiple io threads.
11:37	Chousuke	remember though that refs aren't there so you can write imperative, mutating code that uses them. you should keep the number of mutable references to a minimum, and write most of the code functionally :)
11:38	CalJunior	let's say tiger needs to keep is cell phone address book up to date in real time.
11:38	CalJunior	milliseconds.
11:39	defn	woo hoo, this is neat -- finally got the hang of messing with clojure from the REPL
11:39	defn	err compojure
11:39	defn	i thought id need to restart the server every time, but that doesnt look to be the case
11:40	CalJunior	I'm stretching the metaphor here …
11:40	Chousuke	CalJunior: it really depends on how your data and identities interact
11:40	CalJunior	identities are constant in number. data changes rapidly.
11:41	Chousuke	the phone book might be just part of tiger's value.
11:41	Chousuke	so you'd have one atom for tiger and update that when the phone book changes.
11:41	CalJunior	exactly
11:42	Chousuke	though if there is a situation where you might need to update tiger's value based on some other identity's value, then you probably need refs, so that you can do changes transactionally
11:42	CalJunior	but if the 'girls' change phone numbers every millisecond, would that create a massive amount of gc when I use ref?
11:44	Chousuke	to be able to change the phone numbers at all you either need a mutable data structure or one of the reference types
11:44	Chousuke	using clojure's reference types of course is recommended
11:44	Chousuke	but if that turns out to be too slow, then you might have to resort to using java arrays or something
11:44	the-kenny	Or a database
11:44	Chousuke	and then Clojure can't help you anymore :/
11:45	the-kenny	But that's even slower
11:45	Chousuke	updating persistent data structures is pretty quick, and java's GC is fast, so don't worry too much
11:45	Chousuke	write it the easy way first.
11:45	CalJunior	thanks
11:45	the-kenny	Premature optimization is the root of all evil
11:46	CalJunior	knuth right?
11:46	the-kenny	Don't know
11:47	the-kenny	Wikipedia says it's from Knuth, yes
11:58	floux	hi all. I am struggling with the gen-class macro when defining a method that accepts a string-array and returns a list.
11:59	defn	gah! why cant i link to these .css documents from compojure?
12:00	floux	how can I define a string[] or List<String> as input parameter to my function?
12:00	defn	(include-css "css/pygments.css")
12:00	Chousuke	floux: List<String> is just List, but String[] is something else... hm
12:00	defn	css/pygments.css exists in the same dir as my source file
12:00	Chousuke	,(make-array String 1)
12:00	clojurebot	#<String[] [Ljava.lang.String;@11d4d66>
12:00	defn	im not sure why it doesnt see it :\
12:01	Chousuke	floux: use "[Ljava.lang.String" for the type
12:01	floux	Chousuke: I will try, thank you!
12:02	Chousuke	(including the quotes)
12:03	floux	hmm.. the reader gets mixed up by the unmatched delimiter
12:03	floux	ahh
12:04	floux	Chousuke: this gives me a "ClassNotFoundException: [Ljava/lang/String"
12:06	floux	maybe I should just use a raw List
12:06	somnium	defn: see the wiki on static files, by default it looks in "./public"
12:08	defn	somnium: d'oh!
12:08	defn	thank you, i was getting pretty frustrated
12:08	defn	:)
12:09	defn	somnium: is there a way to restart the server from the REPL?
12:09	Chousuke	floux: hm, maybe you need the ; as well
12:12	floux	Chousuke: looks promising compile worked.
12:13	floux	Chousuke: fantastic! It works.
12:13	floux	Chousuke: thank you very much
12:14	Chousuke	gen-class could use a bit better syntax for specifying arrays :P
12:21	somnium	defn: if you hold on to the jetty object you can, but you shouldn't ever need to. You can recompile fns and it updates immediately.
12:24	defn	it looks like to update routes you need to
12:24	defn	somnium: i cannot get this damn css file to work
12:24	defn	im getting a 500 error now, which is "better" than before
12:25	somnium	defn: if youre in emacs C-c C-k should update everything
12:25	defn	I have a static route (GET "/" (public-dir* (params :*)))
12:25	defn	where public-dir is "public" and resides in the same directory as the source file
12:25	somnium	defn: slime sets your "." to whatever file you started slime on
12:25	defn	im using swank-clojure-project to start slime
12:26	somnium	defn: right, but if you open it on "./src/proj.clj" compojure will be looking in "./src/public"
12:27	defn	what im saying is that i dont open it on a file, i run swank-clojure-project on the project root
12:27	somnium	defn: try setting an absolute path on (serve-file ...)
12:28	defn	and the file im working with and running the server from, has ./public just as you describe
12:29	somnium	defn: what does (use 'clojure.contrib.duckstreams) and (pwd) show?
12:29	defn	my home dir
12:29	defn	is there a command to change slime's working dir
12:30	somnium	no, its rooted to the classpath
12:30	somnium	best advice for now, use an absolute path until you get it working
12:30	technomancy	defn: M-x cd, but the actual JVM's working dir cannot change
12:33	defn	Problem accessing /css/pygments.css. Reason:
12:33	defn	java.lang.String cannot be cast to clojure.lang.IFn
12:33	neotyk	technomancy: Hi, Q regarding lein swank: how does it set classpath? I can't use/require things from my src dir
12:33	technomancy	neotyk: weird; works for me
12:33	somnium	defn: you've got a ("foo") somewhere
12:33	neotyk	technomancy: so I do "lein swank" in my leiningen project
12:34	defn	somnium: what? are you sure man?
12:34	neotyk	technomancy: than M-x slime-connect
12:35	neotyk	technomancy: and if I try (use ...) it say's it can't find it
12:35	somnium	defn: that error says something tried to call a string
12:36	defn	does serve-file expect a File obj?
12:36	technomancy	neotyk: must be something wrong with your project layout then. works fine here.
12:37	neotyk	technomancy: could you check clojurebot?
12:37	somnium	defn: no, Im using this, (serve-file "path/to/static" (params :*))
12:38	defn	somnium: ill try that
12:38	technomancy	neotyk: might be able to take a look over lunch
12:39	neotyk	technomancy: I can also try to create sample project
12:41	defn	somnium: well, now i dont get an error, but all that shows up when i navigate to the stylesheet is a blank page
12:44	pjackson	hi technomancy, I have some suggestions for clojure-test-mode; how would you like them?
12:45	technomancy	pjackson: cool; if they're quick to implement, just fork and implement in a branch, otherwise start a discussion on the swank-clojure mailing list
12:45	pjackson	Righto.
12:45	danlarkin	on rye with butter
12:46	defn	Problem accessing /css/pygments.css. Reason:
12:46	defn	public/404.html (No such file or directory)
12:46	defn	w. t. f.
12:49	somnium	defn: try (serve-file "absolute/path/to/DOT/SLASH/public/" (params :*))
12:51	defn	why does that work and not my def'd var?
12:52	somnium	defn: why dont you pastie the offonding portions
12:53	defn	somnium: i will in one second
12:53	somnium	defn: at any rate, it sounds like that worked? be happy!
12:53	defn	here's another issue im having now... now that i can get my css working
12:53	defn	they dont work on different routes
12:54	defn	like /docs/css/global.css is broken now
12:54	somnium	defn: make sure the paths in (include-css) start with a "/"
12:55	defn	fixed!
12:55	defn	somnium: i owe you man
12:56	somnium	defn: the first time I used it I had some headaches with static files too
12:57	defn	yeah dude, wow.
12:57	defn	that was absolutely annoying
12:58	defn	as soon as i finish what im doing im going to scaffold a basic compojure project so i never have to think about that again
12:58	defn	somnium: truly though, thanks for the help :)
12:59	somnium	defn: np, someone here helped me
13:00	defn	compojure is so strange to me still -- partly i think a lot of my frustration is that i always used to relish the splitting up of functionality, so id work on view code for an hour, then do controller code, etc.
13:00	defn	but i feel like im doing both at the same time in compojure
13:02	mebaran151	defn, I actually had the same feeling
13:02	somnium	defn: the same patterns can be applied, but its on you to structure your code (compared to OO-MVC)
13:02	mebaran151	a good framework makes that pattern obvious though
13:02	defn	i end up feeling like i dont know where one piece starts and another ends
13:03	defn	which is rather annoying
13:03	mebaran151	the way I do it
13:03	defn	yeah im all for advice
13:03	somnium	compojure is more like sinatra than rails
13:03	mebaran151	I define a separate namespace, for like views
13:03	defn	somnium: well said
13:03	mebaran151	then each view is a function
13:03	mebaran151	that uses compojures pretty kickass templating language
13:03	defn	mebaran151: yeah i started doing that, but then i realized i didnt really have enough views to warrant it, so this ended up being one big source file
13:04	defn	yeah the templating is just...awesome
13:04	defn	it's like HAML, but better
13:04	mebaran151	oh it doesn't matter if you have alot of views or a few
13:04	mebaran151	don't be scared to have a 10 line source file
13:04	mebaran151	I have a utils file in my current project that's like 20 lines
13:04	Chousuke	my impression of compojure is that it's more of a toolkit than a full-blown framework :/
13:04	mebaran151	well it's like sinatra
13:04	mebaran151	which I like
13:04	defn	Chousuke: i think if you really know the whole thing it's more than that
13:04	mebaran151	I don't like too much magic I don't understand
13:05	defn	but i havent met very many who do (know the whole thing)
13:05	Chousuke	"framework" in my mind implies an imposed structure
13:05	somnium	It really shines as a backend for javascript apps
13:05	Chousuke	whereas a toolkit lets you combine things more freely
13:05	mebaran151	isn't there a clojure framework that's even more minimalist
13:05	mebaran151	uses app macros
13:06	somnium	mebaran151: there's ring, which is like rack with fewer libraries
13:06	defn	yeah
13:06	mebaran151	I kind of wish things like this existed for socket servers
13:06	defn	idk, for what im doing in compojure it's practically perfect
13:06	mebaran151	I'm trying to wrap netty, but I haven't quite grasped its event model yet
13:06	defn	im willing to wager that it's mostly me that's the problem
13:06	defn	not compojure
13:06	mebaran151	netty itself seems fairly kick ass
13:07	defn	ive only been using clojure for like a month, never built any java projects before this, so the whole namespace thing and such was new to me, especially the project structure
13:08	phaer	I might have a rather dumb question: I have got vimclojure up and running with single .clj files, but would like to use leiningen. How does that work?
13:08	defn	once i get better at structuring my projects and knowing what to put where, i think ill be a lot better off
13:08	defn	phaer: do you have lein installed?
13:09	phaer	defn: yes, with normal source files, i just start ng-server and vim. But this doesn't work with a lein project. So i thought i might have to add some nailgun stuff to project.clj?
13:09	defn	phaer: http://clojars.org/lein-nailgun
13:09	defn	add a line to project.clj: :dev-dependencies [[lein-nailgun "0.1.0"]])
13:10	defn	then run lein deps, then lein nailgun
13:10	phaer	defn: I did this, but it is unable to resolve lain-nailgun in this context.
13:11	phaer	defn: I'm new to the whole java, jvm, classpath, maven, ant,... stuff. So maybe i'm overseeing something?
13:11	defn	lein-nailgun you mean?
13:12	phaer	defn: Yes, was just a typo in irc, it is correct in my source
13:12	phaer	defn: Oh, nevermind: i added dev-dependencies after the final closing bracket ;)
13:12	defn	it works for me
13:12	defn	hehe, rookie mistake ;)
13:13	mebaran151	anybody here have much experience with Netty, what I can ignore etc?
13:13	defn	phaer: without evangelizing too much, i recommend learning enough emacs to use swank-clojure + slime
13:13	mebaran151	it's a big big project
13:13	replaca_	I'm trying to write a leiningen plugin and I'm getting an "Illegal Access Error: eval-in-project is not public". Any ideas?
13:13	mebaran151	I'd recc netbeans to get started quickly
13:13	mebaran151	you get a good repl, nice easy ide tools
13:14	mebaran151	I always feel a little bit masochist when I run emacs
13:14	defn	replaca_: see the latest commit on http://github.com/technomancy/leiningen/tree/swank-in-project
13:14	somnium	defn: advising vim users to learn emacs is not a good way to make friends ;D
13:14	mebaran151	vim clojure was alright
13:14	defn	somnium: shrugs -- im only trying to help
13:14	defn	;)
13:14	mebaran151	but I don't see what anybody loses with a modern IDE like netbeans or eclipse
13:14	phaer	defn: I'm not dogmatic, and i like emacs quite much, but for now i'm just too used to my vim setup ;)
13:15	defn	you just cant do a lot of what you can do with emacs when it comes to clojure
13:15	phaer	defn: But i did some emacs experiments in the last days.
13:15	somnium	FWIW I almost switched to vim until I stumbled on ergoemacs
13:15	mebaran151	ergoemacs?
13:15	defn	or i should rephrase: you can do almost all of it, but a lot of it requires a bunch of dicking around
13:16	defn	not that emacs doesn't require a lot of messing around, but as far as getting a working setup, you need ELPA and a few commands, and you're set
13:16	somnium	mebaran151: its an effort to provide an emacs distribution thats less anachronistic
13:16	mebaran151	anyway to get it on ubuntu
13:16	ambient	i wish there was a drscheme-like cross platform ide for clojure, made in clojure, built like emacs in its core
13:16	hiredman	they sure picked a horrible name
13:16	defn	hiredman: ill agree with you there
13:16	hiredman	Repl :D
13:16	defn	may as well call it "Emacs 2.0"
13:16	somnium	mebaran151: theres a windows installer iirc, otherwise need to hook it into your .emacs
13:17	konr	vimpulse + emacs has the best of both worlds imho
13:17	mebaran151	I'd be willing to try an emacs that didn't demand I "learn" it
13:17	somnium	mebaran151: thats the idea
13:17	mebaran151	I've flirted with emacs about 3 or 4 times
13:17	somnium	~google ergoemacs
13:17	clojurebot	First, out of 127 results is:
13:17	clojurebot	ergoemacs - Project Hosting on Google Code
13:17	clojurebot	http://code.google.com/p/ergoemacs/
13:17	defn	mebaran151: i didnt learn it, i absorbed it after working with it
13:17	defn	there's a big difference
13:18	mebaran151	I get vim, and vim's keyboard centric philosophy informs the way I run eclipse and netbeans
13:18	replaca_	defn: ahh, I was looking at master
13:18	somnium	the default motion bindings are so ridiculous...
13:18	defn	replaca_: it sounds like he's working on it i guess
13:18	mebaran151	but things like compile, mercurial integration, keep pounding f6 for run
13:18	defn	somnium: default motion? like the C-n C-p etc?
13:19	mebaran151	and also the fact that I had to learn elisp to actually make it do anything useful,I felt I was giving more time to the tool than to programming in the tool
13:19	somnium	defn: yes
13:19	defn	mebaran151: that's a fair assessment, but i can say that once you've invested that time, it ends up paying off later on when you think "hmm, i wish my editor could do this..." -- and you quickly dump out a fn to do what you want
13:20	ambient	funny thing, alt+p and n work in python idle repl also :)
13:20	defn	plus i felt like learning emacs + clojure just made sense
13:20	defn	ive learned a lot about lisp from elisp
13:20	mebaran151	I'm not scared of terminal: I used to do sysadmin
13:20	defn	oh crap.. did i just inadventantly start an editor war?
13:20	replaca_	defn: yeah, but that commit (from a month ago) made swank stop being a plugin. That doesn't help :-). But eval-in-project in just a defn in leiningen.complile, so I don't see how it could come back private.
13:20	mebaran151	I just can't stand the 70's feel of emacs
13:20	defn	next topic...
13:21	defn	replaca_: is it a defn-?
13:21	somnium	mebaran151: what 70s feel? http://tinypic.com/view.php?pic=2urqmgl&s=6
13:21	replaca_	defn: nope
13:21	defn	replaca_: hmm, id ask technomancy
13:22	mebaran151	rainbow parens are kind of neat
13:22	mebaran151	but I have to admit, I've never had too much trouble balancing mine as long as it highlighted the opening and closing ones
13:22	replaca_	defn: yeah, looks like I've got to. It might be cause I'm trying to load it under swank-clojure-project, but I don't know why that would make a difference.
13:22	mebaran151	I could probably hack enclojure to provide it too
13:23	mebaran151	I guess I just didn't grow up with emacs keybindings
13:23	ambient	highlighting a segment like in drscheme is the best way imo to match parens
13:23	mebaran151	so they always feel foreign to a guy who's used to vulgar copy and paste, vulgar window switch etc
13:23	somnium	mebaran151: I certainly didn't, it started with inf-ruby and was downhill from there
13:24	somnium	mebaran151: I cant imagine not having paredit anymore
13:25	defn	somnium: amen
13:25	mebaran151	but I gotta admit, it just never sticked
13:25	mebaran151	Linux stuck (I started with it on servers and eventually moved my desktop to an Arch then Ubuntu install)
13:25	mebaran151	but emacs is the one part of the gnu stack that just feels painful
13:25	defn	mebaran151: i tried to "learn" emacs like 5 times
13:26	defn	mebaran151: you know what the difference is between linux and emacs?
13:26	defn	you're forced to use linux
13:26	mebaran151	oh yeah
13:26	mebaran151	hahaha
13:26	mebaran151	nah, but I got used to the shell pretty fast
13:26	defn	i mean that seriously -- when i say I tried to learn emacs, im full of shit
13:26	mebaran151	I have some coworkers who hate bash
13:26	ambient	mebaran151: what made you switch from arch to ubuntu?
13:26	defn	because i kept using vim and stuff
13:26	mebaran151	I used to maintain the clojure package for arch
13:27	defn	this last time when i vowed to learn emacs, i removed all other editors, or at the very least aliased them to emacs -nw
13:27	defn	it was hell for about a week, but it didnt take much longer to feel at home
13:27	mebaran151	arch is really cool in that source packages are right there
13:27	mebaran151	but I wanted to get the cool new features that Ubuntu puts in gnome
13:27	ambient	eh, ubuntu has source too, just a different apt command :/
13:27	mebaran151	like the new presence stuff (set your presence across all chat clients, etc)
13:27	defn	xmonad FTW
13:28	mebaran151	ambient, but it's not right THERE
13:28	mebaran151	it's not like abs, where customization is trivial
13:28	mebaran151	I used to use xmonad :)
13:28	defn	no wonder i like emacs -- i dont use anything but tiling WMs
13:28	mebaran151	I've also used awesome
13:28	defn	xmonad is the fastest and most stable i think
13:29	mebaran151	awesome is written in like straight C and assembler
13:29	defn	i tried awesome, dwm, ratpoison, etc.
13:29	mebaran151	they all have the same flavor
13:29	mebaran151	even openbox
13:29	ambient	there's one done with lisp also
13:30	defn	mebaran151: xmonad has a good balance between being fast, and also being extensible
13:30	ambient	stumpwm, ratpoison with lisp
13:30	defn	ive yet to find a better tiling wm
13:30	ambient	hah, extensible if you know esoteric languages like haskell :)
13:30	defn	ambient: you dont need to know any haskell to hack the configs
13:30	mebaran151	I know a bit of haskell: I used it to learn haskell actually
13:31	defn	i dont know any haskell but i have a huge ass 300 line config
13:31	mebaran151	I often wanted a programming language exactly like the way clojure does types: optionally until you want them
13:31	ambient	seems i need to take another look then
13:31	defn	the work is done for you, you just put numbers and vars in the right places and recompile like crazy until it works
13:31	mebaran151	I wish they were a little better integrated
13:31	mebaran151	types in clojure
13:31	mebaran151	but I think the definterface and defprotocol stuff will go a long way toward making that a reality
13:32	defn	nod
13:32	ambient	popup windows and such are still a bit problematic in tiling wm:s
13:32	ambient	id be perfectly happy if metacity had tiling window manager command key-bindings
13:32	mebaran151	types aren't evil, they're just usually painfully verbose: I don't like having to convince the compiler that sane code is sane
13:32	mebaran151	ambient, you can set them in compiz
13:32	mebaran151	compiz let's you do anything with windows
13:33	mebaran151	tile, place set move, migrate
13:33	mebaran151	it's actually pretty nice
13:33	chouser	tabs. I need tabs on my window frames.
13:33	ambient	except that compiz comes with a braindead window snapping functionality and requires me to use opengl backend
13:33	chouser	and keybindings to move focus
13:33	technomancy	compiz's tiling is very weak
13:33	ambient	which introduces various problems compares to without compiz
13:34	mebaran151	it's strong enough for me
13:34	chouser	which is why I use ion
13:34	mebaran151	I liked the use of the opengl backend, but I have a decent graphics card
13:34	mebaran151	sometimes eye candy makes ya smile
13:34	Drakeson	is it just me or slime (truck) + swank-clojure are not working together at the moment? Debugger entered--Lisp error: (void-function ns)
13:34	mebaran151	it's things like slime and swank not working together that seem just unnecessary
13:35	ambient	in windows (gasp ;) i have win+left/right/whatever and it moves the window there. the most usable system i've used
13:35	ambient	winsplitrevolution or something
13:35	mebaran151	does everything in UNIXland have to be mostly broken, and fixing it is something that is put on the user
13:35	mebaran151	linux used to be that way until Ubuntu
13:35	ambient	yes.
13:35	stuartsierra	I remember years ago I hacked up my own WM on top of Sawfish.
13:35	technomancy	Drakeson: yes, slime trunk is incompatible; you'll want to use the version in elpa
13:36	technomancy	mebaran151: you don't run into incompatibilities if you actually read the readme
13:36	technomancy	but I guess that's a lot to ask. =(
13:36	stuartsierra	Real programmers don't read instructions.
13:36	chouser	stuartsierra: I used sawfish when I still hated lisp. If it did windows tabs, I'd might go back.
13:37	stuartsierra	Yeah, that'd be cool.
13:37	Drakeson	technomancy: is the version in elpa tracking trunk?
13:37	mebaran151	but like, every emacs evangelist has told me that emacs sucks until you customize your .emacs exactly for you
13:37	technomancy	Drakeson: no
13:37	mebaran151	why can't it come with a cool .emacs
13:38	stuartsierra	"Emacs is an operating system. If only it had a decent text editor." -?
13:38	the-kenny	stuartsierra: It has :) it's integrated
13:38	the-kenny	And it's even better with paredit :D
13:38	stuartsierra	I forget who said that originally.
13:38	mebaran151	that enables useful things like elpa
13:38	technomancy	mebaran151: the next version of Emacs will integrate elpa
13:38	mebaran151	so I don't have to hunt, and find outdated blogposts that fail
13:39	ambient	i figure that emacs is like lisp, an ameoba that you train to act like you want. its just a blob of slime that somebody throws you and then you take a petri-dish and do science on it
13:39	technomancy	ambient: http://www.topatoco.com/merchant.mvc?Screen=PROD&Store_Code=TO&Product_Code=DC-BISCUIT&Category_Code=DC
13:39	stuartsierra	Common Lisp has long been called a "big ball of mud."
13:39	Drakeson	mebaran151: because emacs has to care for a very wide range of tastes.
13:39	mebaran151	the wide range of tastes can take care of themselves
13:39	ambient	but its living mud :)
13:40	mebaran151	odds are if you're esoteric enough to want to rebind the letter z to a, you should have to do that yourself
13:41	Drakeson	mebaran151: good luck trying to convince them. they'll flame the mailing-lists if something changes!
13:42	mebaran151	netbeans seems to get away with offering a nice default setup (hey ma! it highlights straight out of the box, compiles straight out of box, it runs straight out of the box, it has menus that tell you what the keybindings are)
13:42	stuartsierra	Netbeans is also developed by a single company, so they can control the design better.
13:43	hiredman	the only problem is that it is netbeans
13:43	somnium	emacs has C-h b
13:44	somnium	if netbeans had paredit it would be dangerous
13:44	mebaran151	but firefox is equally free, and somehow it gets design pretty right
13:44	technomancy	ugh; a thousand times no.
13:44	hiredman	not really
13:44	stuartsierra	mebaran151: Firefox is mostly developed at Mozilla.
13:44	ambient	i've already migrated to chrome, there's even vimperator-like addon already :)
13:45	mebaran151	I wasn't super impressed with chrome
13:45	technomancy	ambient: say what?
13:45	technomancy	conkeror on chrome would be pants-wetting-worthy
13:45	ambient	conkeror is emacs-like? right?
13:45	ambient	i have now knowledge of that
13:45	technomancy	yeah, it's the inspiration for vimperator
13:46	mebaran151	what design decisions does chrome make that are fundamentally different from firefox, other than it comes in obnoxious blue?
13:46	stuartsierra	hiredman: I give it 2 years tops
13:46	ambient	http://github.com/jinzhu/vrome
13:46	hiredman	stuartsierra: promise?
13:46	stuartsierra	No.
13:46	hiredman	:(
13:46	technomancy	mebaran151: the UI of chrome is worse than firefox, but what ambient is describing is a way to replace the UI
13:46	hiredman	but I want it now anyway
13:46	ambient	i rarely use the ui
13:46	ambient	just keyboard bindings
13:47	somnium	stuartsierra: how long till javascript gets threads?
13:47	stuartsierra	hiredman: so write in. Rhino is there, you could even use Clojure!
13:47	mebaran151	I would like a browser that was just a js image
13:47	stuartsierra	somnium: how would I know? :)
13:47	mebaran151	stuartsierra, but then it would be java....
13:47	hiredman	:\|
13:47	technomancy	ambient: vrome so it doesn't strip out the crap, it just adds new stuff in?
13:47	stuartsierra	Ask Mozilla.
13:47	ambient	technomancy: yeah, that's what i figured. have yet to use it
13:48	mebaran151	isn't firefox actually already pretty close to that: I know the chrome is mostly powered by js
13:50	mebaran151	somnium, they're getting workers
13:50	ambient	from personal experience, chrome is much snappier than firefox
13:50	somnium	mebaran151: hmm, must google
13:51	hiredman	somnium: it's easy enough to just toss in a thread api similar to java's Thread (takes a no arg lambda)
13:51	somnium	quote: "concurrency can cause interesting effects in your code"
13:51	mebaran151	I'd like it if Javascript embraced its scheme roots and got continuations that could be turned into treads
13:52	mebaran151	if clojure had continuations that would be nice too, though I know they are prohibitively expensive to implement anywhere ever
13:53	hiredman	mebaran151: no, the jvm just doesn't support them
13:53	mebaran151	because I thought they were simply incredibly hard to put in a stack machine
13:53	hiredman	you can't arbitrarily jump around in bytecode
13:54	somnium	mebaran151: its possible to capture a tail-call in a lambda (with complexity varying on how much state youre closing over)
13:54	ambient	aww, some cool assembler hacks do just that :)
13:55	mebaran151	somnium, I do that in my neo4j bindings to represent the rest of the nodemap
13:55	somnium	mebaran151: cool
13:55	mebaran151	call the function, get some more clojures that represent the map
13:55	mebaran151	but it wasn't quite the same as a continuation, that could easily let you go back to where you've came from as well
13:56	mebaran151	closures get you alot....
13:56	somnium	theres the continuation monad I keep haering about, but I still dont speak monad very well
13:57	mebaran151	heh, neither do I
13:57	mebaran151	I was contemplating looking into it until I figured out my neat little tail call closure with letfn
13:57	mebaran151	which basically got the job done
14:01	ieure	How come I can’t use Java class constructors in map? e.g. (map URL. ‘("http"://a.com" "http://b.com")) fails with ClassNotFoundException. I have to wrap it in a fn for it to work. (partial new URL) also fails in the map, which makes no sense.
14:02	somnium	ieure: new isnt a function
14:03	ieure	Well, that kind of sucks,
14:04	somnium	ieure: (map #(URL. %) ...) isn't that bad is it?
14:05	ieure	somnium, No, it’s just strange that things like URL. and (new URL) seem to be less than first-class citizens.
14:06	defn	somnium: wanna do some more compojure consulting? :)
14:06	defn	i have a route that's like this: (GET "/docs/:name" (doc-page (:name params))))
14:07	mebaran151	the class constructors are actually macro like
14:07	mebaran151	I don't think you can comp macros either
14:07	somnium	,(macroexpand '(Foo. bar baz))
14:07	clojurebot	(new Foo bar baz)
14:07	somnium	,(doc new)
14:07	clojurebot	Excuse me?
14:08	mebaran151	and new is a special form
14:08	mebaran151	you can't apply if
14:08	defn	somnium: http://gist.github.com/270537
14:09	mebaran151	so the java interop is actually pretty consistent
14:09	defn	basically once i go to a /docs/:name route, if i click one of the resulting links on that doc page, it tries to take me to /docs/docs/:name
14:10	somnium	defn: it looks one of your link-tos starts with a "/" and one doesnt
14:12	defn	you sir, are a genius
14:14	ambient	hmm, what branch to use for 1.1.0? im having bit of a trouble updating the branch with git
14:14	ambient	from 1.0
14:14	defn	it should just be master
14:15	defn	iirc
14:15	ambient	git pull origin master => merging failed :/
14:15	reify	I use branch 1.1.x or tag 1.1.0
14:16	ambient	oh, i had my own patches in it.. :p
14:20	ambient	clojure-contrib doesn't seem to have 1.1.0 supporting branch
14:20	ambient	separately
14:21	ieure	Do I need to do any extra quoting when using the #"foo" macro for regexps?
14:22	danlarkin	ieure: #"foo" is not a macro
14:22	danlarkin	it's a regex literal
14:22	ieure	It’s a reader macro, right?
14:22	ambient	it isn't a reader macro?
14:23	danlarkin	if you consider literal hash maps and literal lists to be reader macros as well, sure
14:23	ieure	The docs call it a reader macro.
14:24	somnium	ieure: #"foo" == /foo/
14:25	ieure	somnium, Right - Just wondering if it’s a raw string, or if I need to escape backslashes. A copypasta’d regexp is producing slightly odd results.
14:25	defn	with do I can just place functions in line right?
14:25	defn	like (do (somefunction) (someotherfunction) (someotherotherfunction))?
14:26	ieure	defn, Sure. The reader doesn’t care if you have a space or newline between funcs.
14:26	defn	thanks
14:26	somnium	ieure: none of the ridiculous java escape the escape is necessary
14:26	ieure	somnium, Okay, thanks. Guess I have to go into regexp debug mode. Ugh.
14:33	chouser	backslashes need to be esacped if you want to match a literal backslash.
14:34	chouser	,(count (re-seq #"\\" (str \a \\ \b \\ \c)))
14:34	clojurebot	2
14:34	chouser	,(count (re-seq #"b" (str \a \\ \b \\ \c)))
14:34	clojurebot	1
14:40	Licenser	So I'd like some advice if someone has time. I've the following situation, I've a game field with N units on it, every unit is allowed to act for each game cycle, I'd like to make this thread safe so that units could act simultaniously, now I'd thought about making the game field a ref and each unit a ref that is stored the field map. Does that make any sense at all?
14:41	defn	what do you do when you can't include clojure.zip and clojure.set in the same file because of a conflict with ns/next
14:42	stuartsierra	defn: "require ... :as ..." or "use ... :only ..."
14:42	defn	stuartsierra: im trying to do an autodocumentation sort of thing
14:43	stuartsierra	I don't see how that makes any difference.
14:43	defn	are the nexts equivalent, do you know?
14:43	stuartsierra	not at all
14:43	defn	stuartsierra: if i use :only on one of the libs, wont i leave one out?
14:43	stuartsierra	zip/next has nothing to do with core/next
14:43	stuartsierra	defn: yes
14:44	defn	and you dont see how this makes any difference for a documentation project?
14:44	stuartsierra	I see now. But you probably want 'require' instead of 'use' anyway.
14:45	stuartsierra	e.g., (require 'foo.bar.baz) (documentator (ns-publics (the-ns 'foo.bar.baz)))
14:45	defn	nice
14:45	defn	thank you
14:45	stuartsierra	np
14:46	chouser	Licenser: possibly. I'd start, though, with a single ref at the top level and manipulate the units, the field, etc. via pure functions.
14:47	Licenser	chouser: nods I currently have no refs at all, just pure functions, I represented a 'turn' as reducing over the units letting each one modify the game field
14:47	chouser	Licenser: once it's working, if you don't like the performance or CPU usage, since you wrote pure functions it should be pretty easy to add refs at another layer, wrapping your existing pure fns in small transaction calls.
14:48	chouser	ah good, sounds like you're on your way then.
14:49	chouser	hm, you'll want to sync up all your threads once per turn, won't you?
14:49	chouser	if so, that's rather unlike the ants example where they all churn away at whatever speed they can.
14:50	Licenser	since I will end up with a few thousand units I'd figure it be helpful if I can like work with a few threads each handeling some of the units
14:51	Licenser	the moves are somewhat distinct, when unit A and B don't interact they don't need to know about eachother
14:51	Licenser	I wrote the whole thing in ruby (non paralell since it was too much of a pain) now I figured I try out how clojure does the job ;)
14:53	Licenser	so a few of the functions I find pretty ugly, since, to keep them purely functional, I need to compose a return value and destruct it again :(
14:59	stuartsierra	try factoring out the destructure/restructure
14:59	stuartsierra	Like update-in
15:04	Licenser	hmm hmm thinks if that is an option
15:06	optimizer	is there any good example of an imap code/client in clojure?
15:07	optimizer	imap as in the email protocol
15:07	tomoj	does anyone know haskell's STM enough to say why clojure's is better? ;)
15:07	optimizer	i think for everything theoretical
15:07	optimizer	haskell is better
15:07	optimizer	for anything practical; any thing is better than haskell
15:07	optimizer	clojure is practical
15:08	optimizer	therefore clojure's stm is better than haskell's stm
15:08	cp2	tomoj: now ask the same in #haskell :D
15:09	Licenser	and report back to us since I like to hear what they have to say
15:09	tomoj	maybe haskell's blocks readers
15:09	defn	hmmmm now to figure out how to get a compojure server running when apache is taking up 80
15:10	defn	err jetty
15:11	tomoj	you can have apache proxy to jetty, no?
15:12	defn	i believe so yes, just never done it before
15:12	hiredman	defn: you just put it on a different port
15:12	chouser	or lighttpd to proxy to jetty
15:13	defn	[null] Unable to resolve artifact: Missing:
15:13	defn	[null] ----------
15:13	defn	[null] 1) org.clojure:clojure-master:jar:1.1.0-alpha-SNAPSHOT
15:14	defn	methinks i need maven2
15:17	defn	bahhhh, anyone having issues with leiningen, did they rename clojure again?
15:18	stuartsierra	1.1.0 release is not in Maven central yet, and there was some naming flux with master/new after the release
15:21	defn	it seems to work fine locally
15:21	defn	just not on my server
15:23	stuartsierra	defn: I don't know how lein works, but maybe there are jars cached in a local repository.
15:23	defn	yeah that's how it works
15:23	defn	still pretty annoying
15:24	defn	especially considering `lein new abc` produces a broken project.clj
15:24	danlarkin	patches welcome
15:24	defn	i almost said that to myself just now, but you beat me to it
15:25	defn	sorry, bad day and im being a punk
15:26	somnium	~haskell
15:26	clojurebot	haskell is Yo dawg, I heard you like Haskell, so I put a lazy thunk inside a lazy thunk so you don't have to compute while you don't compute.
15:28	defn	~skynet
15:28	clojurebot	I will become skynet. Mark my words.
15:31	hiredman	clojurebot: haskell is <reply>"you have to see features like that in the context of Haskell's community, which is something like Perl's community in the garden of Eden: detached from all shame or need to do any work." -- ayrnieu
15:31	clojurebot	Alles klar
15:33	jeffthink	sorry, bit of a noob here - am having some issues getting congomongo going - may be a more general issue - can anyone here help?
15:33	somnium	jeffthink: I suppose I feel obligated to try
15:33	tomoj	jeffthink: just paste the problem
15:33	tomoj	or describe
15:34	hiredman	exception+code
15:34	jeffthink	using Leiningen with congomongo (and compojure) clojars...attempt to run (ns my-mongo-app
15:34	jeffthink	(:use somnium.congomongo)) and get: Could not initialize class somnium.congomongo__init
15:34	jeffthink	[Thrown class java.lang.NoClassDefFoundError]
15:35	gravity	hiredman: That might be the best description of haskell's community I've seen yet
15:35	gravity	Although ayrnieu is a total hater
15:35	hiredman	:P
15:36	hiredman	" what would you do in that circumstance? Why, you'd golf your programs forever, and react to pointlessly cryptic code with joyful curiousity." is the rest of the quote
15:37	somnium	jeffthink: is congomongo.jar on the classpath?
15:38	cp2	12:15:24 chouser >> or lighttpd to proxy to jetty
15:38	cp2	or nginx proxy to jetty :)
15:39	hiredman	or god forbid figure out glassfish
15:39	jeffthink	is in the lib dir of my clojure project that I set up with lein...am running lein swank and accessing from within emacs...thought that lein-swank set class path for the project..I can use compojure
15:40	defn	Exception in thread "main" java.lang.NoClassDefFoundError: clojure/lang/IFn
15:42	defn	joyful curiosity is almost always a good thing
15:42	defn	almost
15:43	defn	ah-ha, no clojure.jar on my classpath, grrr
15:45	somnium	jeffthink: it works here with a fresh project, you have [org.clojars.somnium/congomongo "0.1.1-SNAPSHOT"] in project.clj?
15:47	somnium	(the root congomongo group is currently being squatted)
15:47	somnium	~seen ato
15:47	clojurebot	no, I have not seen ato
15:49	jeffthink	I do - I have also had similar issues with ClojureQL...so could definitely be a broader issue...weird thing is that in same setup, have had no issues with general clojure, compojure, or incanter
15:50	hiredman	~seen ato_
15:50	clojurebot	no, I have not seen ato_
15:50	ambient	~seen _ato
15:50	clojurebot	_ato was last seen quiting IRC, 17294 minutes ago
15:51	hiredman	ah
15:51	hiredman	,(int (/ 17294 60 24))
15:51	clojurebot	12
15:53	somnium	jeffthink: at the slime repl, what does (use 'clojure.contrib.classpath) and (classpath) give?
15:55	hiredman	~classpath
15:55	clojurebot	classpath is (System/getProperty "java.class.path")
15:58	somnium	now I'm really embarassed to think of how I did it before I noticed c.c.classpath
15:59	jeffthink	somnium: #<File lib/congomongo-0.1.1-20091229.021828-1.jar> is in the list
15:59	jeffthink	what specifically am I looking for
15:59	somnium	that would be it
15:59	somnium	and (use 'somnium.congomongo) fails at the repl?
16:01	jeffthink	Could not initialize class somnium.congomongo__init
16:01	jeffthink	(yes)
16:03	somnium	jeffthink: Im rather stumped, anything else in the stack-trace? A month or two ago someone had trouble due to an old jvm version, anything like that possible?
16:07	jeffthink	somnium: java version "1.6.0_15" and nothing stands out in stack trace...let me try something real quick that may give a clue
16:10	defn	there is a recent update to Java on OSX
16:10	defn	i believe it's newer than 1.6.0_15
16:11	somnium	jeffthink: pastie the whole stack trace if you dont resolve it in the meantime, that was how we unraveled the previous mysterious error
16:12	djork	hah hah, someone called an app developer on ripping sprites from Nintendo
16:12	djork	"0 of 2 customers found this review helpful"
16:15	ordnungswidrig	re
16:19	jeffthink	hi pastie
16:20	djork	wow, Hook Champ
16:20	djork	beautiful controls
16:20	djork	they completely ditched d-pad and buttons
16:20	djork	although there are special buttons
16:21	djork	but 90% of the controls are done by tapping the gamplay area
16:23	jeffthink	somnium: http://pastie.org/769344
16:28	somnium	jeffthink: do you by chance have more than one clojure.jar in ./lib?
16:28	djork	oh sorry, I thought I was in #iphonedev
16:29	jeffthink	no - clojure, clojure-contrib, and clojure-db-object...1 of each
16:31	defn	i keep getting access forbidden messages -- im trying to set up an apache mod_proxy -> jetty servlet
16:36	somnium	jeffthink: Im really stumped now. does (import somnium.congomongo.ClojureDBObject) work?
16:37	hiredman	what clojure version?
16:38	ambient	"The big performance problem in clojure currently is that the way it does dynamic dispatch doesn't really fit well with the JVM, and function calls are both more expensive than they could be, and aren't properly optimized away by hotspot. This is a JVM problem, and a solution is in the works." is this talking about JVM or Clojure? JVM 7 will make it easier to write more high-performant code with Clojure?
16:39	hiredman	ambient: you should ask whoever wrote that comment
16:39	somnium	should be 1.1.0-master-SNAPSHOT
16:39	jeffthink	somnium: no error, returns somnium.congomongo.ClojureDBObject
16:39	hiredman	and what version was congomongo compiled with?
16:41	jeffthink	well the clojure jar included is "clojure-1.1.0-master-20091231.150150-10.jar"
16:41	hiredman	yes, but if congomongo is built with lein, then it was AOT compiled
16:41	hiredman	and the AOT compiled stuff is more brittle between clojure versions
16:42	jeffthink	ah...that is in the lein project ./lib...the version of clojure on my machine as retrieved from elpa is clojure-1.0.0-SNAPSHOT.jar
16:43	somnium	jeffthink: aha, but... lein swank in root should use tho clojure version in ./lib
16:44	somnium	jeffthink: what about starting with swank-clojure-project instead of lein swank, same story?
16:46	somnium	^^ is the clojure.jar the pom wants, so everything appears to be in order, yet smething is wonky
16:49	jeffthink	wow - so swank-clojure-project does it...everything works...that's bizarre...had issues with it before so went the leiningen route...didn't think to check back to swank way of starting the slime-repl...thank you all for your help...you've already helped enough, so don't want to take any more time, but any last ideas for what to check for to get this all working with leiningen that I can head off on my own and look at?
16:50	hiredman	leiningen does some funk with the classpath
16:51	hiredman	like clojure is included in the leiningen jar, but also on the bootclasspath, etc
16:53	jeffthink	may this be the issue (from leiningen issues list): "The repl task will use the version of Clojure and Contrib that Leiningen uses, not the one specified by your project."
16:54	defn	anyone familiar with compojure have any idea what's happening here? http://getclojure.org/
16:54	defn	something with the path is f-ed up :\
16:56	jeffthink	somnium: haha...am really excited to use your lib...thanks for all the help
16:56	somnium	jeffthink: cheers
16:58	jeffthink	if I figure out what the leiningen issue is, will make sure to post here/github...though is definitely possible that it's user error...anyhow, thanks again...cheers
16:59	arohner	defn: it appears you're running apache + (jetty?). My guess is your jetty server isn't up / isn't where apache thinks it should be
16:59	arohner	make sure the jetty server is up, then look at your apache reverse proxy config
17:01	defn	arohner: as far as i can tell i have it set up correctly
17:01	arj_	anyone know why I get connection refused on reconnecting to repl after I close my Emacs and start it up again?
17:01	defn	my jetty server is on 8080, and mod_proxy is setup with proxypass and reverseproxypass
17:02	defn	i have documentroot set to my public/ dir, which is not where my jetty jar is
17:03	defn	what is the document root for a directory structure that looks like /project-root/src/project-name/(source.clj\|public/css/my.css)
17:08	defn	weird. public-dir when def'd as the exact same string "/my/path/etc/", behave differently
17:08	nowhere_man	Hi all
17:08	nowhere_man	i'm setting up Clojure with my SLIME
17:09	the-kenny	nowhere_man: great! :)
17:10	nowhere_man	I had the following error: http://paste.lisp.org/+1ZTJ
17:11	nowhere_man	I'm interested in STM and I like discovering ohter Lisps than my primary one (currently CL)
17:12	nowhere_man	and I'm teaching Java to a friend that I'd like to eventually introduce to Lisp, having Clojure would help
17:15	the-kenny	nowhere_man: Are you using slime from cvs?
17:16	nowhere_man	the Debian package
17:17	nowhere_man	should be the CVS from 8 sep 2009
17:17	the-kenny	nowhere_man: mh.. I know about problems with recent cvs checkouts, but 8. Sep 2009 isn't very recent. The version in slime is from october 2009
17:18	nowhere_man	do you have any idea what this error could mean?
17:18	the-kenny	nowhere_man: hm.. is the swank-instance in clojure running? Correct port etc.?
17:19	nowhere_man	I have that in Clojure's REPL:
17:19	nowhere_man	user=> user=> Connection opened on local port 40315
17:20	nowhere_man	#<ServerSocket ServerSocket[addr=0.0.0.0/0.0.0.0,port=0,localport=40315]>
17:22	hiredman	what OS?
17:22	hiredman	I think bsd's and macosx can have issues with ipv6 vs ipv4
17:22	nowhere_man	Debian
17:22	the-kenny	hiredman: He mentioned a debian package of slime. Maybe debian? :)
17:22	hiredman	right right
17:22	the-kenny	Could the package be the problem?
17:23	hiredman	hey! maybe he is using a bsd kernel with debian userland!
17:23	the-kenny	heh
17:23	the-kenny	nowhere_man: Maybe give the slime in elpa a try?
17:24	the-kenny	nowhere_man: If you're using a common lisp with it, you have to work a bit on the backend for the common lisp though..
17:24	ordnungswidrig	slime on debian worked for me only with the elpa one or the one from github.
17:24	nowhere_man	slime in elpa ?
17:24	ordnungswidrig	slime from debian did not work with clojure-swank for me
17:25	the-kenny	nowhere_man: elpa is a package manager for emacs.
17:25	the-kenny	A nice one :)
17:25	ordnungswidrig	But I used lein swank and mvn clojure:swank to start the swank.
17:25	defn	finally: http://getclojure.org/
17:25	defn	still needs a lot of work, and im not entirely sure why that sidebar is unsorted now -- wasnt before
17:26	knuckolls	on osx my install procedure was install emacs 23, install elpa, M-x package-list-packages, install swank-clojure, restart, M-x slime
17:26	knuckolls	from that point it asked to install clojure
17:26	knuckolls	and i let it
17:26	defn	dont forget paredit-mode
17:27	ordnungswidrig	gah, aquamacs hickup.
17:27	ordnungswidrig	froze -> killed.
17:27	the-kenny	ordnungswidrig: heh.. I've switched to emacs23 in terminal.app some days ago :)
17:28	ordnungswidrig	the-kenny: hm, I could ssh to my debian box and attach to a screen running emacs23 :-)
17:29	ordnungswidrig	the-kenny: over all I like aquamacs.
17:29	ordnungswidrig	I asked early today but got no answer: is there already a lib to generate css from clojure?
17:30	ohpauleez	ordnungswidrig: you might be able to tweak enlive to do it
17:31	defn	how could passing a var that's a string versus a "string" cause a hiccup in clojure?
17:31	defn	is that possible?
17:32	ohpauleez	defn, any weird binding form issues come in to play?
17:32	defn	ohpauleez: let me look at the code
17:32	defn	http://gist.github.com/270752
17:32	ohpauleez	thanks, let me take a look
17:33	the-kenny	ordnungswidrig: I had many small things which were annoying... blocking while downloading the package-list, bad copy&paste, slow, gigantic size
17:33	LauJensen	ordnungs: I think Compojure has some helper func for generating css
17:34	defn	ohpauleez: im confused about the root
17:34	defn	whats going on there?
17:34	ordnungswidrig	the-kenny: I switched to a mac just 3 weeks ago so to annoyance of a different keyboard layout is still greater than the aquamacs glitches :-)
17:35	hiredman	defn: convetion for earmuffs is that they mean a var is to be thread locally bound, and if you are binding a var thread locally, it is possible that the code is being excuted on another thread and does not see the binding
17:36	defn	hiredman: ah!
17:36	the-kenny	ordnungswidrig: Ah okay, that's more important ;)
17:36	ordnungswidrig	LauJensen: afaik compojure supports generating html in a nice way (and add style and id attributes nicely)
17:37	somnium	regarding css, its a bit aggravating that the reader chokes on %
17:37	LauJensen	Thats also true :)
17:37	somnium	,:50%
17:37	clojurebot	:50
17:37	somnium	hmm, I get an exception
17:37	somnium	,(keyword "50%")
17:37	clojurebot	:50%
17:37	durka42	=> :50%
17:37	durka42	:50
17:37	durka42	java.lang.Exception: Unable to resolve symbol: % in this context (NO_SOURCE_FILE:0)
17:38	hiredman	,:%
17:38	defn	hiredman: that wasnt it either
17:38	clojurebot	Invalid token: :
17:38	hiredman	durka42: most of the css wrapping stuff I have seen takes strings or keywords
17:39	defn	http://gist.github.com/270752 -- do you see anything in there that would make it possible for var versus "/what/var/represents/"
17:39	somnium	something like compass would be wonderful
17:39	defn	err make it possible for a var to not succeed, where a "/path/" does?
17:41	ordnungswidrig	somnium: yes, compass, like that. but why do you want to encode 50% a keyword? Can't you simple use a string literal?
17:42	ohpauleez	defn: what happens when you pass the var in?
17:42	defn	ohpauleez: the path is wrong -- it doesnt know where my public/css/ dir is
17:42	hiredman	he doesn't pass the var in
17:42	hiredman	unless you use #'foo , you don't pass "vars"
17:42	ohpauleez	right right
17:43	defn	so anyway -- plain and simple, the path is just wrong and it doesn't know where my CSS files are
17:43	defn	the blah breaks, BLAH breaks, but the equal string "/a/b/c/" works fine
17:44	ohpauleez	have you tried passing it with a root so it could make an absolute path?
17:44	defn	trying that now ohpauleez
17:44	defn	hiredman: your confidence in me is always reassuring
17:44	ohpauleez	yeah, there's nothing there that looks like it would get screwy
17:45	somnium	ordnungswidrig: of course, but would your first choice be strings or keywords?
17:45	hiredman	defn: do you ever check the equality of string and the string literal
17:46	defn	is that a joke?
17:46	hiredman	,(let [x "/public/"] (assert (= x "public/")))
17:46	clojurebot	java.lang.Exception: Assert failed: (= x "public/")
17:46	defn	'course i do
17:46	hiredman	why is it a joke?
17:46	ohpauleez	defn: and when you do that, you might as well fire up the debugger
17:46	ambient	dang, i wish i'd discovered this page earlier: http://steve.yegge.googlepages.com/effective-emacs
17:53	Licenser	is there something like the swank clojure stuff for any other editor then emacs? Please?
17:53	ambient	both eclipes and netbeans plugins have repl if that's what you mean
17:53	hiredman	vimclojure has a repl
17:53	hiredman	there is also slime.vim
17:54	defn	,(def public-dir "/Users/abc/def/ghi/jkl/mno")
17:54	clojurebot	DENIED
17:54	Licenser	Hence and the comunity is greatyl helpful - buy a new keyboard with a different layout is not a way to fix key assignment problems
17:55	hiredman	defn: have you put an a println in the function so you can monitor the actual input it receives?
17:55	hiredman	Licenser: hah!
17:55	Licenser	no seriousely that was the answer I got when asking how to fix it
17:55	arohner	Licenser: you can remap all of the control keys
17:55	hiredman	I was talking with hp's support on behalf of someone else about fixing a built in webcam, they told me to reformat the laptop and run a system restore
17:56	arohner	and you can pick different language keyboard layouts
17:56	Licenser	arohner: uea works great on aquaemacs but that is 'not supported' and does not do .emacs.d directories
17:57	Licenser	So either I
17:57	hiredman	thats irc for you
17:57	Licenser	well I
17:57	Licenser	i've had a few good experiences here is nice, jruby is nice, solaris is nice
17:57	arohner	defn: I use compojure's (serve-file...) I pass it the files root explicitly, relative to the the directory where I started java
17:58	arohner	Licenser: what is uea?
17:59	Licenser	arohner: I've no idea I think it was yea but I'm not sure :/
17:59	arohner	cua? the thing that makes emacs act more "normal"?
18:00	defn	arohner: like if project root is: /home/myuser/project, you pass it /public/html/
18:00	arohner	with respect to C-c C-v?
18:00	arohner	defn: I pass it "./public/html"
18:00	defn	hm, okay thanks
18:01	arohner	underneath, it does a (File. root path), so it expects whatever java does with new File(root, path)
18:01	arohner	aha, it's relative to (System/getProperty "user.dir")
18:02	arohner	but (serve-file "/home/myuser/project/public/html" "foo.html") should work
18:04	arohner	defn: see if you can make this work:
18:04	arohner	(.exists (java.io.File. "/home/myuser/project/public/html" "foo.html"))
18:04	arohner	if that doesn't work, compojure can't help you
18:06	somnium	is there an M-x butterfly to wrap a region in quotation marks and escape everything inside?
18:09	technomancy	somnium: " will do that if you have paredit on.
18:10	dysinger	hiredman: I just got your email - sorry I was out of the country (guatemala) for the last 2 weeks for festivus
18:11	somnium	... not when it runs into a paren
18:11	dysinger	lets chat friday
18:16	job	So I'm having trouble coming up with an idiomatic way to go from seqs to hashmaps.
18:16	job	Anyone know of a way?
18:17	ordnungswidrig	job: seq with kv pairs?
18:17	job	right. ([k v] [k v] ... )
18:17	Knekk	dysinger: how did you like GUatemala?
18:18	Chousuke	,(into {} '([1 2] [3 4])); job
18:18	clojurebot	{1 2, 3 4}
18:18	job	oh, cute.
18:18	job	didn't know about that; thanks much!
18:20	ordnungswidrig	,(apply hash-map [1 2 3 4])
18:20	clojurebot	{1 2, 3 4}
18:21	job	That's not quite what I meant, but Chousuke got it.
18:24	job	So how about filtering hash-maps idiomatically? (into {} (filter #'fn map))?
18:26	somnium	,(filter (fn [[x y]] (even? y)) (zipmap (range 10) (range 1 11)))
18:26	clojurebot	([1 2] [3 4] [5 6] [7 8] [9 10])
18:27	Chousuke	job: you don't need the #' :)
18:28	Chousuke	job: though amusingly enough, it does work
18:28	Chousuke	(there's just an extra indirection)
18:28	job	Chousuke: gotcha.
18:29	Chousuke	coming from CL?
18:29	job	yep; though my knowledge of CL is pretty limited
18:30	dysinger	Knekk: loved it
18:30	Chousuke	in Clojure #'foo is shorthand for (var foo)
18:30	dysinger	fun times - they love fireworks on holiday
18:30	Knekk	dysinger: sure do. The metralletas are the best.. string 6-7 together...
18:31	Knekk	dysinger: did you make it to Antigua and Lake Atitlan?
18:31	job	ah, interesting; what purpose does it serve?
18:31	Chousuke	so instead of the function value of foo you get the var that holds the value
18:31	Chousuke	but it works as a function because vars redirect function calls to their values :P
18:32	Chousuke	vars are the things that hold globally defined values in Clojure (I guess they would be symbols in CL)
18:32	Chousuke	symbols in Clojure are only names, not actual containers
18:32	job	right
18:32	dysinger	Knekk: I was in Antigua the whole holiday - didn't see much else ):
18:33	Chousuke	when there is a reference to a defined var in source code, the symbol is resolved to a var and the var is dereferenced, yielding the value.
18:33	Knekk	dysinger: where did you stay?
18:35	Chousuke	,(vector '+, +, #'+, (deref (resolve '+))); hm
18:35	clojurebot	[+ #<core$_PLUS___4745 clojure.core$_PLUS___4745@11a772d> #'clojure.core/+ #<core$_PLUS___4745 clojure.core$_PLUS___4745@11a772d>]
18:37	job	ha!
18:37	Chousuke	the print syntax for functions is rather ugly :P
18:41	Knekk	ah, that's convenient. My grandmother used to take guests, but she stopped a couple of years ago
18:41	Knekk	err
18:41	Knekk	#wrong
18:58	jobeirne	So I've got a question of style on my hands
18:59	jobeirne	I'm coding a robot driver in Clojure; this entails defining one robot struct and then a whole bunch of functions which operate on this robot struct.
19:00	jobeirne	My question is: do all of these functions take in an obligatory "robot" parameter, or do I just presume in the definition of each function that we're operating on a global "robot" var?
19:00	Chousuke	I think either way is fine.
19:00	Chousuke	if there only ever is one robot
19:01	jobeirne	I don't think there'd ever be more than one, but you never know.
19:01	Chousuke	I mean, if there is one robot, having a global var is fine.
19:01	Chousuke	and it might work for more than one through dynamic binding, but you might run into trouble.
19:03	jobeirne	True.
19:03	jobeirne	Both ways feel kind of ugly; I guess I'm just used to OOP.
19:04	ordnungswidrig	I'd prefere the function to take a robot parameter and some with-robot bindings and macros. so you can always go to the detail level pass a robot instance if desired.
19:04	defn	jobeirne: if you're clever you can still do a lot of OO-esque stuff
19:04	the-kenny	I'd prefer the robot-parameter too.
19:04	defn	i mean, you can call Java, for one
19:05	ordnungswidrig	s/pass/and &/
19:05	jobeirne	defn: yeah, true, but I'd like to stick to pure Clojure as much as possible
19:06	defn	jobeirne: sure, i did that for awhile, but in the end, pure clojure vs java clojure == clojure
19:06	defn	if you get good with java interop that's a good thing
19:06	defn	not something to avoid, fwiw
19:06	hiredman	any ideas how I would snag the appegine sdk from google's maven repo with lein?
19:07	jobeirne	defn: you know, what you're saying makes sense. I guess I chucked the baby out with the bathwater.
19:08	jobeirne	For now I'll go with ordnungswidrig/the-kenny, but long-term I'll look at some java interop.
19:09	jobeirne	defn: So you don't think defining a class through Clojure is too big a hassle?
19:10	the-kenny	jobeirne: No, it's damn-easy
19:10	the-kenny	jobeirne: http://clojure.org/compilation
19:10	hiredman	what format does lien's :repositories expect?
19:10	Chousuke	I'm still not sure if you need a class though
19:11	hiredman	I tried to give it a vector of urls, but it does not like that
19:11	technomancy	hiredman: I think it's a map of repository names to URLs; check leiningen/pom.clj if that doesn't work.
19:11	jobeirne	the-kenny: interesting. I'll give it a close look.
19:12	ordnungswidrig	bedtime for me. cu tomorrow.
19:12	the-kenny	jobeirne: But you generally only need classes if you want to use them in some java code. If you want to write everything in clojure, you don't really need a class.
19:12	the-kenny	hm.. same for me. School starts tomorrow here.
19:12	the-kenny	Good nigh
19:12	the-kenny	t
19:12	jobeirne	'night; thanks for the help.
19:12	jobeirne	where do you go?
19:19	hiredman	gar
19:19	hiredman	1 required artifact is missing. for artifact: org.apache.maven:super-pom:jar:2.0
19:20	hiredman	http://gist.github.com/250055 <-- haha first google hit
19:21	hiredman	the first three or four google hits are all lein
19:23	defn	yeah it's a nice name
19:23	hiredman	I didn't google the name
19:23	hiredman	I googled the error
19:26	hiredman	well this sucks
19:27	technomancy	hiredman: super-pom is just maven API speak for "current project"
19:27	technomancy	it's weird, but I'm not sure if that's something lein can control
19:29	hiredman	http://gist.github.com/270842 is my project file
19:31	hiredman	ah
19:31	hiredman	I see, so I need to look at whatever was before super pom
19:32	technomancy	yup
19:36	erikcw	I've got slime running in aquamacs. I'm able to work with clojure! However, I'm having a hell of a time trying to figure out how to add jars to my classpath. I'm able to add them to my command line REPL (via my ~/.clojure file) but I can't for the life of me figure out how to get them to load in emacs. (I'm trying to get enlive.jar working in particular)
19:37	technomancy	erikcw: the readme to swank-clojure is pretty descriptive
19:38	erikcw	member:technomancy: is this the readme you are referring to? http://github.com/jochu/swank-clojure/blob/master/README
19:39	technomancy	no, try http://github.com/technomancy/swank-clojure/blob/master/README
19:39	technomancy	that version is old
19:39	erikcw	404 error
19:39	hiredman	now compojure is giving me the same error because of the alpha->master rename that happened
19:39	technomancy	erikcw: here it is: http://github.com/technomancy/swank-clojure
19:39	defn	hiredman: use liebke's
19:39	defn	or dvg's
19:40	defn	http://clojars.org/org.clojars.dvgb/compojure
19:40	defn	that works i believe
19:40	defn	if it doesn't: [org.clojars.ato/compojure "0.3.1"]
19:40	defn	oops wrong one
19:41	defn	[org.clojars.liebke/compojure "0.3.1-master"]]
19:41	hiredman	I wonder why liebke's didn't show up in the search
19:41	defn	search is borked
19:41	defn	same thing happened to me with clojureql
19:42	defn	you can get to it by going to clojars.org/clojureql
19:42	defn	but not via search
19:43	cemerick	I wonder if we can get rhickey to make a benevolent decree w.r.t. maven-based builds so as to simplify the build/distribution landscape. ;-)
19:44	defn	the build landscape is varied, but it'll clean up by itself
19:44	defn	let the games begin
19:44	cemerick	I agree, but anything that can prod it along is a good thing, IMO.
19:44	cemerick	It's not like there's a solution space to be explored.
19:46	liebke	cemerick: what's the decree you'd have Rich make?
19:47	technomancy	rich has more or less indicated that's a problem space he's not interested in IIRC
19:47	cemerick	yeah, I know, that's why I used the ;-)
19:48	cemerick	liebke: "be a good neighbor, use maven"?
19:48	liebke	ah, good luck with that :-)
19:48	cemerick	I know. :-)
19:49	cemerick	I've moved from critic to skeptic to convert to zealot in a striking short time.
19:50	liebke	haha, it's been great for Incanter, but it has required a lot of expertise from others
19:56	hiredman	liebke: did you see my incanter screenshot?
19:57	hiredman	http://www.thelastcitadel.com/images/Screenshot-Repl.png
19:58	hiredman	I should have hovered the mouse over one of the bars so you could see the tooltips
19:58	liebke	hiredman: I did, very cool!
20:00	liebke	hiredman: what are your plans for the repl?
20:01	hiredman	I don't know
20:01	hiredman	it was a whim
20:02	liebke	I'd really like to have a simple gui repl to include with the Incanter
20:02	KirinDave	I'm having problems writing a mcro
20:02	KirinDave	err, macro
20:02	KirinDave	http://gist.github.com/270865
20:03	KirinDave	I want to write addition compojure shorthands in defroutes
20:03	KirinDave	But request, which is filled in inside the macro, is coming out unbound.
20:03	hiredman	liebke: the architecture may be a little unusual, and, for example, I used $ too, but that is easy enough to change
20:04	KirinDave	When I macroexpand something like (GET "/" request) I end up seeing something like "request__857__auto__"
20:04	KirinDave	How do I bind to that in my macro?
20:05	hiredman	what do you mean "bind to that"
20:05	KirinDave	hiredman: If I try and use this macro as written, it fails
20:06	hiredman	with what exception
20:06	KirinDave	scorekeeper.web/request
20:06	KirinDave	No such var: scorekeeper.web/request
20:07	hiredman	right
20:07	hiredman	you are doing this with compojure right?
20:07	KirinDave	Yes.
20:07	KirinDave	So, how do I get my request to match up with theirs?
20:07	hiredman	request is magic, and only exists in the defroutes macro
20:07	KirinDave	Sure.
20:08	KirinDave	http://idisk.me.com/dfayram/Public/Pictures/Skitch/web.clj-20100106-171027.jpg
20:08	KirinDave	Is exactly what I'm trying, in scorekeeper.web
20:08	hiredman	your best bet is to expand into something like (fn [~'request] code-here)
20:08	KirinDave	So I have to know the underlying structure of the macro?
20:09	hiredman	shrug
20:09	hiredman	I don't know the underlying structure of the macro
20:09	KirinDave	And what does ~'require do ?
20:09	hiredman	it lets you shadow a name
20:09	hiredman	bad bad
20:09	KirinDave	Um… how would that solve my problem?
20:09	hiredman	compojure's defroutes can take functions
20:10	KirinDave	Okay… but...
20:10	hiredman	the argument to those functions when they are called is the request map
20:10	KirinDave	It seems weird that clojure is freaking out at this macro definition.
20:10	KirinDave	Since it's valid when it's actually instantiated.
20:11	KirinDave	I draw the conclusion that this is a limitation of clojure's macro system.
20:11	hiredman	I don't care
20:12	KirinDave	hiredman: … Then why did you start talking to me to begin with?
20:12	hiredman	I don't care about what conclusions you draw
20:12	KirinDave	You are like night and day dude.
20:12	hiredman	I am, trying to help you get from point a (not working) to point b (working)
20:12	KirinDave	Sometimes helpful and cool. Sometimes not.
20:13	KirinDave	Thank you for the fn tip
20:13	hiredman	defrouts could literally being doing anything under the covers
20:13	KirinDave	hiredman: I want to understand clojure macros better, that's why I'm doing it this way.
20:13	KirinDave	it working is entirely secondary.
20:13	KirinDave	I've only got 2 resource types.
20:14	KirinDave	So "working" is copy-paste-done.
20:15	hiredman	if you use some rough idea of what defroutes does (which may or may not jive with what it does) and write your own macro that could do anything, it may or may not work, if you write a macro that uses a mechanism you know defroutes can handle (single arg function) then it will work
20:15	cemerick	heh, I just sent a really bone-headed msg to the compojure mailing list :-/
20:16	hiredman	the other option is ripping open defroutes, and digging through macro expansions and gensyms
20:16	KirinDave	Well this macro would work in common lisp. I know because I pulled out SBCL and did something very much like it just to make sure I remembered how it worked over in a more familiar land.
20:16	KirinDave	Because "request" would be bound where compiled.
20:16	KirinDave	And it'd be compiled in the defroutes form, which would have already been expanded.
20:16	arohner	KirinDave: your original macro, using "request#" uses gen-sym to make a new variable with the name request__1234__, where 1234 is an arbitrary number
20:17	arohner	that's the default, because it's safer
20:17	KirinDave	arbscht: I don't use request#.
20:17	arohner	if you really, really want to stomp on the variable, "request", you use ~'request, which says "no really, use request, I know what I'm doing"
20:18	hiredman	KirinDave: that is make assumptions about the scope of the name "request" and how it is bound
20:18	hiredman	making
20:18	arohner	oh, then defroutes is
20:18	hiredman	which you cannot really know about unless you open up defroutes, which I really don't want to do, so (fn [~'request] ~@body)
20:18	KirinDave	arohner: Almost certainly, as it has that __auto__
20:19	arohner	a nicer way to do this would be to make a middleware function for the routes you want to treat this way
20:19	arohner	oh, I see what you're trying to do
20:20	KirinDave	arohner: Yes. And ~'request does it.
20:20	KirinDave	That's interesting
20:20	arohner	you can pass a regex to the route
20:20	KirinDave	So clojure macros are semi-hygenic by default.
20:20	KirinDave	As in it tries to bind every expanded symbol as tightly as possible, like at definition time.
20:20	arohner	KirinDave: yes. I would call it mostly-hygenic
20:20	KirinDave	It's done at the time and in the place where it's defined then?
20:21	arohner	It does it at macro expansion time, I believe
20:21	technomancy	KirinDave: actually it's the backquote that expands the symbols, it's just that most macros use backquote</nitpick>
20:22	KirinDave	That's a very interesting policy
20:22	KirinDave	So conceptually ~' is a trapdoor that says "No really really really defer this symbol binding."
20:23	KirinDave	Thanks arohner.
20:23	arohner	right
20:23	arohner	np
20:23	arohner	FYI, I solved a similar problem by doing
20:24	arohner	(routes* (GET my-regex ...))
20:24	arohner	using () in your regex will show up in the route params
20:24	arohner	(:route-params request) will contain the back references
20:25	KirinDave	Right, this form just generalizes that
20:25	KirinDave	For some specific resources.
20:25	KirinDave	So that they're pulled by extension.
20:26	KirinDave	thanks!
20:36	hiredman	I'm trying to write a lein plugin, and lein help shows "appengine-setup" but lein appengine-setup says appengine-setup is not a task
20:38	hiredman	oh, hoho
20:38	hiredman	clojurebot: hiredman
20:38	clojurebot	hiredman is lazy
20:38	hiredman	close
20:38	hiredman	clojurebot: hiredman
20:38	clojurebot	hiredman is an evil genius.
20:38	hiredman	not quiet
20:38	hiredman	clojurebot: hiredman
20:38	clojurebot	hiredman <3 XeLaTeX
20:38	hiredman	true
20:38	hiredman	clojurebot: hiredman
20:38	clojurebot	hiredman is lazy
20:38	hiredman	I guess that will have to do
20:40	technomancy	hiredman: is there a leiningen.appengine-setup/appengine-setup fn defined?
20:41	technomancy	help only checks the namespaces, it doesn't make sure there's a corresponding function
20:41	hiredman	my fault
20:42	hiredman	I was editing a file leiningen.appengine_setup.clj instead of leiningen/appengine_setup.clj
20:59	q1	clojurebot: clojurebot
20:59	clojurebot	clojurebot will become skynet
20:59	q1	:(
21:12	scottj_	Did there used to be a bunch of p functions like preduce and pfilter that have since been removed?
21:16	JonSmith	i think so
21:40	mebaran151	there use to be some forkjoin stuff that's getting replaced
21:40	mebaran151	all that's left is pmap I think
22:02	polypus	just installed 1.1.0. do i need to require deftype, i'm getting an unresolved symbol
22:03	polypus	~ping
22:03	clojurebot	PONG!
22:04	JonSmith	where do you go if you found a bug in a contrib module?
22:07	polypus	huh, i just read through the changes file for 1.1 and it doesn't mention deftype. didn't it make it into this release?
22:20	polypus	running master snapshot from here: http://build.clojure.org/job/clojure/lastSuccessfulBuild/artifact/clojure.jar and deftype is still not defined. i must be missing something. anybody?
22:25	chouser	deftype is still only in the 'new' branch
22:26	polypus	ty chouser. just got that working 3 seconds ago
22:26	chouser	heh sorry
22:26	polypus	no worries. thx
22:26	durka421	(doc if-let)
22:26	clojurebot	"([bindings then] [bindings then else & oldform]); bindings => binding-form test If test is true, evaluates then with binding-form bound to the value of test, if not, yields else"
22:26	chouser	may 1.2 come quickly...
22:26	durka421	^ what is oldform?
22:27	polypus	praise the lisp
22:27	durka42	in the source there's an assert-args that says oldform must be nil. is it something deprecated?
22:27	chouser	durka42: yes, deprecated
22:28	chouser	durka42: if-let used to be (if-let x (expr) then else)
22:28	durka42	it would give a really cryptic error, though
22:28	durka42	oh, i see
22:29	chouser	,(if-let x 1 :then :else)
22:29	clojurebot	java.lang.IllegalArgumentException: if-let requires a vector for its binding
22:29	chouser	nice pretty error, actually.
22:29	chouser	it'd probably be safe to get rid of those messages now.
22:34	polypus	in some of the scattered deftype example code that shows up in google the type names are sometimes capitalized. (deftype Foo ...). i suppose it's too eraly to ask if this should be considered idiomatic?
22:35	polypus	early*
22:35	chouser	I think type and protocol names will be capitalized like java class and interface names are.
22:37	polypus	k, ty
22:54	polypus	(isa? (type 4) Integer) -> true
22:54	polypus	(deftype Foo []) (def foo (Foo))
22:54	polypus	(isa? (type foo) Foo) -> false
22:55	polypus	would be nice if you didn't need to go ::Foo
22:57	chouser	I think that's required in order to allow you to redefine Foo dynamically.
22:58	polypus	ahh cuz it's an anon class?
23:01	polypus	although isa? could be redifined to treat functions differently, and type constructors could have metadata to make that work.
23:54	hiredman	http://code.google.com/p/maven-gae-plugin/issues/detail?id=26 <-- gah
23:55	hiredman	so you can't get the appegine sdk via maven, how lame