into-array without the extra seq
Hi, The other day I was trying to do an (into (long-array 0) xform some-vec) which doesn't work, then I realized there is *into-array* for that, however, it turns everything into a *seq* first. Is there any plans for extending *into* to hand primitive array, or rewriting *into-array* to do away with the extra allocation? Thanks, Laszlo -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
core.match: order of patterns
Hi, I started experimenting with core.match. One thing that isn't obvious to me, how it should work when matching more than one pattern. In the following example, the expression returns 3 or 4 depending on which pattern comes first: (require '[clojure.core.match :as cm]) (cm/match [:a true false] [_ _ true] 1 [:a _ true] 2 [:a true false] 4 [:a true _] 3 ) where as I'd expect it would go for the most-specific match at least where the choice is between a wildcard and non-wildcard option. Is it correct to assume, that the algorithm constructs an decision tree that will hit a minimum amount of patterns, however, if there are more than one matching clauses, its result is an arbitrary choice of the possible decisions? Thanks! Laszlo -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: CIDER 0.8.2 released!
This is fantastic! Congrats and kudos to all the contributors. One question: will the 0.8.2 release make it to MELPA-stable? Thanks! L 2014-12-21 11:54 GMT+01:00 Bozhidar Batsov bozhi...@batsov.com: Ladies and gentlemen, I’m happy to inform you that CIDER 0.8.2 is out! It’s a bugfix-only release (which means you totally want to use it). Have a look at the release notes ( https://github.com/clojure-emacs/cider/releases/tag/v0.8.2) for all the gory details. This will be the final release in the 0.8.x series (unless some terrible regression doesn’t pop up). There are no concrete plans for 0.9 yet, but I hope it will introduce some (or ideally all) of the following: * better cljs support * comint-based REPL buffers * boot support * better handling of multiple nREPL connections * and whatever else we manage to fit in :-) Please, report bugs and submit suggestions for improvements here https://github.com/clojure-emacs/cider/issues. If you like clojure-mode, CIDER and inf-clojure you can support their development via Gratipay https://gratipay.com/bbatsov/ P.S. In related news - squiggly-clojure ( https://github.com/clojure-emacs/squiggly-clojure), a flycheck extension for CIDER is now an official clojure-emacs project. -- Cheers, Bozhidar -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: futures + refs
Hi Sam, have you tried putting the incoming (hashtag,tweet) tuples into a queue and have another thread pull them out and upload them to couchdb? I'm unfamiliar with HBC, but I assume it has a callback-based API, so you should be able to have multiple callbacks/connections/streams feed the same queue and have a single thread do the upload (and maybe batch if necessary). I don't see refs being a particularly good fit for this problem, but I could be wrong. 2014-12-11 16:18 GMT+00:00 Sam Raker sam.ra...@gmail.com: I've got some code that's using Twitter's HoseBirdClient to pull tweets from the public stream, which I then preprocess and store with CouchDB. Right now, my HBC client is being forced to reconnect more than I'd like, which occasionally causes my app to hang, for reasons I'm not entirely clear on. Regardless, some preliminary research on HBC suggests that the reconnections are being caused by my code failing to keep up with the endpoint, which in turn suggests that my processing+uploading is taking too long. I tried wrapping the processing+uploading part in futures, which definitely sped things up, but caused 409 errors when uploading to CouchDB--briefly, Couch requires any update operation to include a git-style rev string, and if the rev you provide isn't the most recent one, it throws a 409 at you. I'm organizing things by hashtag, so tweets with multiple copies of the same hashtag, or series of tweets with the same hashtag are the culprit--future A gets the current doc from Couch, processes it, and uses the rev it got from the currently-existing doc, while future B does the same thing, but finishes first, so now future A has an outdated rev, and that causes the 409. The vague solution I've come up with involves using a map to store the rev values, with the last step of the processing/uploading function being to store the rev number Clutch helpfully returns to you after a successful update. From what I can tell, refs are the way to go, since each future is effectively a separate thread. My questions are as follows: 1) Would I have to store the map-of-refs in a ref? 2) Is this even feasible? Would the timing work out? 3) With the addition of all this dereferencing and `dosync`+`alter`-ing, would this actually end up speeding things up all that much? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török -- Checkout http://www.lollyrewards.com/ -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: futures + refs
Excellent. IF the problem is that your write rate to couchdb can't keep up with the incoming tweet stream (which may be the case) try batching the writes to couch, i.e. instead of firing an update on every single tweet build up a larger batch in that loop, and once you hit a threshold (of your choice) then you send it to couch. As you said, it could be something totally different. :) 2014-12-11 16:52 GMT+00:00 Sam Raker sam.ra...@gmail.com: So HBC actually does that already--it dumps tweets into a LinkedBlockingQueue. Right now, I'm doing `(loop [tweet (.take queue)]...`, which, I think, essentially amounts to what you're suggesting, but I could be misunderstanding you. There's a distinct possibility that all the reconnections are caused by my home's internet connection--my local ssh connections get dropped constantly, which suggests there might be a problem somewhere. I figured trying to optimize my code couldn't hurt, though. On Thu, Dec 11, 2014 at 11:43 AM, László Török ltoro...@gmail.com wrote: Hi Sam, have you tried putting the incoming (hashtag,tweet) tuples into a queue and have another thread pull them out and upload them to couchdb? I'm unfamiliar with HBC, but I assume it has a callback-based API, so you should be able to have multiple callbacks/connections/streams feed the same queue and have a single thread do the upload (and maybe batch if necessary). I don't see refs being a particularly good fit for this problem, but I could be wrong. 2014-12-11 16:18 GMT+00:00 Sam Raker sam.ra...@gmail.com: I've got some code that's using Twitter's HoseBirdClient to pull tweets from the public stream, which I then preprocess and store with CouchDB. Right now, my HBC client is being forced to reconnect more than I'd like, which occasionally causes my app to hang, for reasons I'm not entirely clear on. Regardless, some preliminary research on HBC suggests that the reconnections are being caused by my code failing to keep up with the endpoint, which in turn suggests that my processing+uploading is taking too long. I tried wrapping the processing+uploading part in futures, which definitely sped things up, but caused 409 errors when uploading to CouchDB--briefly, Couch requires any update operation to include a git-style rev string, and if the rev you provide isn't the most recent one, it throws a 409 at you. I'm organizing things by hashtag, so tweets with multiple copies of the same hashtag, or series of tweets with the same hashtag are the culprit--future A gets the current doc from Couch, processes it, and uses the rev it got from the currently-existing doc, while future B does the same thing, but finishes first, so now future A has an outdated rev, and that causes the 409. The vague solution I've come up with involves using a map to store the rev values, with the last step of the processing/uploading function being to store the rev number Clutch helpfully returns to you after a successful update. From what I can tell, refs are the way to go, since each future is effectively a separate thread. My questions are as follows: 1) Would I have to store the map-of-refs in a ref? 2) Is this even feasible? Would the timing work out? 3) With the addition of all this dereferencing and `dosync`+`alter`-ing, would this actually end up speeding things up all that much? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török -- Checkout http://www.lollyrewards.com/ -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to a topic in the Google Groups Clojure group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/clojure/zRy6dm1Vmcs/unsubscribe. To unsubscribe from this group and all its topics, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you
Re: clojure.edn won't accept clojure.java.io/reader? How to work around this and why isn't this documented anywhere?
2014-12-08 8:12 GMT+00:00 Fluid Dynamics a2093...@trbvm.com: On Monday, December 8, 2014 2:26:42 AM UTC-5, Andy Fingerhut wrote: In regards to your question Why isn't this documented anywhere?, it is documented somewhere -- in the documentation string for clojure.edn/read, the very function you were attempting to use: user= (doc clojure.edn/read) - clojure.edn/read ([] [stream] [opts stream]) Reads the next object from stream, which must be an instance of java.io.PushbackReader or some derivee. stream defaults to the current value of *in*. What's *not* documented is that io/reader doesn't output something that edn/read can use directly, nor is there documented an officially recommended workaround for this. FWIW I don't think that io/reader(v1.2) was intended to output something that edn/read can use directly, as it was added well before clojure.edn (v1.5). AFAICT just wrapping the reader output in (java.io.PushbackReader. ...) works. There you go. Still, this is awkward, verbose, and prevents the (nontrivial) use of edn in a platform-neutral way by referring only to Clojure functions without direct interop. Well, except for the even more awkward workaround of slurp and read-string, with the accompanying need to hold the entire file in memory *twice* for a short time. As far as why it requires a PushbackReader, I didn't design the API. Yes, some things in Clojure require using Java interop, and in many (but not all) cases, file I/O requires it. Perhaps io/reader should output a PushbackReader, if only for convenience's sake. io/reader is not meant to be used solely as an input to edn/read. Also, how does this work on ClojureCLR or ClojureScript? Neither of those platforms has a java.io.PushbackReader, and I'm not even sure what the equivalent of the clojure.java.io namespace is for them, unless the java in that name is misleading. Exactly! There is no clojure.java.io as they are on a different host. Different host implies likely different I/O capabilities. BTW cljs has cljs.reader/read-string -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
assert inside an if-let
Hi, the following form doesn't compile and I see no reason why it shouldn't: (if-let [a a] a (assert a)) IMHO it is a bug. If anyone is of a different opinion please share. Thanks, -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: assert inside an if-let
mea culpa, thanks, i should read the docs more closely next time 2014-11-19 14:47 GMT+00:00 Niels van Klaveren niels.vanklave...@gmail.com: From the docs If test is true, evaluates then with binding-form bound to the value of test, if not, yields else. So a is NEVER bound within the else block, and can't compile. On Wednesday, November 19, 2014 3:34:13 PM UTC+1, Las wrote: Hi, the following form doesn't compile and I see no reason why it shouldn't: (if-let [a a] a (assert a)) IMHO it is a bug. If anyone is of a different opinion please share. Thanks, -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török Checkout justonemorepoint.com - Know your true value -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Idiomatic way to return a single value from an async function
+1, this is mostly what we resort to. (defn some-async-func [param-a param-b [out-chan]] (let [ch (or out-chan (chan)] ... ) 2014-11-11 8:53 GMT+00:00 Daniel Kersten dkers...@gmail.com: You could do both: Make the channel optional. If it's provided, use that and return it. If it's not provided, create a new one and use and return that. This way the caller gets to decide which they wish to use based on who the owner of the channel should be or if the channel should be reused elsewhere. For example, for a once-off call, creating s new channel may make more sense but if the function is called frequently it might make more sense to reuse one channel, especially if this channel is used with other plumbing like pub/sub or mult which you would otherwise need to set up every time. On Mon, 10 Nov 2014 17:42 Mike Haney txmikes...@gmail.com wrote: Eric Normand has an interesting article on this here: http://www.lispcast.com/core-async-code-style -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török Checkout justonemorepoint.com - Know your true value -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: On Testing
I tweeted recently that I thought that Clojure is super testable, and I was genuinely surprised about the number of people who disagreed with me. My 2c. Without explicitly citing those complaints, it will be difficult to conduct a meaningful debate. 2014-10-31 14:52 GMT+00:00 Ashton Kemerling ashtonkemerl...@gmail.com: I tweeted recently that I thought that Clojure is super testable, and I was genuinely surprised about the number of people who disagreed with me. There's been a lively discussion about what the best testing frameworks in clojure currently are, and what the built in solutions (clojure.test and test.check) are lacking. While a lot of people recommend midje or expectations, I generally prefer the built in options (no offense to contributors of either of those libraries) and usually recommend people stick with clojure.test for its lack of magic. It's my opinion that these two libraries are largely complete aside from some human interface improvements (quality of output for example), but clearly not everyone agrees with me. So let's talk about what we could add to make the clojure testing experience superior compared to other languages. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török Checkout justonemorepoint.com - Know your true value -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Transducers: Why left to right rather than right to left?
Hi, on transducers generally, watch this https://www.youtube.com/watch?v=6mTbuzafcII . This part tackles your questions on ordering https://www.youtube.com/watch?v=6mTbuzafcII#t=1531 . 2014-10-30 15:44 GMT+00:00 Mars0i marsh...@logical.net: Caveat: I am still feeling around in the dark in my understanding of transducers. What I write below may just convey how clueless I am. (Meta-caveat: I'm probably spitting into the wind. I should no doubt use my time more wisely.) Normal function composition is done starting from the right. This is familiar from mathematics, other Lisps, most languages, and it's how Clojure's function application and 'comp' work. Sometimes it's easier to understand composition going from left to right, as in many natural languages and as in unix pipes, and Clojure provides '-' and '-' to do that. That's good. Best of both worlds. One thing I like about these operators is that their name clearly indicates the direction of function application. Transducers allow function composition with potential efficiency gains, but apply functions starting from left to right. But *it does this using the name 'comp'*, which otherwise applies functions from right to left. What?? Doesn't that seem like a Bad Thing? Why not use a different name? (It's like overloading the minus sign so that in some contexts, it subtracts the first argument from the second.) (Is Clojure is getting too popular? Its essential features--prefix notation, parentheses, purely functional operations, and laziness--aren't doing enough to scare away Java programmers? :-) -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török Checkout justonemorepoint.com - Know your true value -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Expanding The Use Of Transducers To Atoms?
IMHO, for what you describe, i.e. I'd like to view an atom's changes in state as a lazy sequence. there is no need to change the IAtom or add-watch function. Watchers are called for their side-effects, so if you want to consume their output as a lazy sequence, you have to do that transformation step in the watcher function that you attach to the atom/ref/agent. Having said that, as changes to an atom happen asynchronously, I don't think that exposing it as lazy-seq is very efficient way of consuming the values. However, with the advent of core.async, there is now a very elegant way of consuming them via a channel and that channel can have a transducer stack attached (clojure 1.7+), so something along the lines of (def atom-to-watch (atom 0)) (defn make-watcher [out-ch-with-transducer] (fn [x] (async/put! out-ch-with-transducer x (def ch (async/chan 100 your-transducer-stack)) (add-watch atom-to-watch (make-watcher ch)) ;; somewhere else in your code you can consume the values (go (loop [v (async/! ch)] ... )) Obviously you need to make sure that the values get consumed on the channel or use a dropping or sliding buffer. hope this helps, Las 2014-10-27 5:39 GMT+00:00 Mike Thompson m.l.thompson...@gmail.com: I've been reading about transducers with interest. The official docs at http://clojure.org/transducers say *Because transducers are decoupled from input or output sources, they can be used in many different processes - collections, streams, channels, observables, etc.* At this stage, there is direct support for collections and core.async. But, given the comment above about observables, this got me to wondering about another scenario ... I'd like to view an atom's changes in state as a lazy sequence. The first state of the atom is like the first item in the seq, the next time the atom changes state, its new state is the second item in the seq is generated, etc. An infinite seq of new states. (I want to do this in the context of clojurescript and a GUI library called reagent. Think FRP). Now imagine that I could attach a transducer to this seq of state changes, so that I end up with a modified seq of state changes. Now, I can figure out how to do this by gluing together an atom watcher with a core.sync channel. All doable with a small bit of work, I guess. But I wondered. Given the claim above about transducers and how they can be used in the case of observables, should this atom-as-seq-with-transducer be easier? Should the IAtom interface or the add-watcher function be changed to make this process easier? Just a thought. -- Mike -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török Checkout justonemorepoint.com - Know your true value -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] Async Ring 0.1.0
There seems to be a https://github.com/dgrnbrg/async-ring#comparison-with-pedestal section in the README 2014-09-09 16:34 GMT+01:00 Timothy Baldridge tbaldri...@gmail.com: How does this compare/contrast with Pedestal. Seems like there might be some overlap here? Timothy On Tue, Sep 9, 2014 at 9:24 AM, David Greenberg dsg123456...@gmail.com wrote: Announcing the release of Async Ring! Ring is a great foundation for building HTTP servers in Clojure. However, Ring fails to solve many problems that high-performance and transactional HTTP servers must solve: - What does the server do when it can't handle the request rate? - How can the server dedicate more or fewer resources to different requests? - How can long-running HTTP requests be easily developed, without blocking threads? Async Ring attempts to solve these problems by introducing a core.async based API that is backwards compatible with Ring and popular Ring servers, so that you don't need to rewrite your app to take advantage of these techniques. Async Ring comes with many features: - Ports of most ring middleware (just ask me and I'll port your favorites!) - Beauty, a compojure clout compatible concurrent quality-of-server router - Integration with Jetty and Http-Kit, more coming - Documentation and Examples Take a look here: https://github.com/dgrnbrg/async-ring Feedback and pull requests welcome! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- “One of the main causes of the fall of the Roman Empire was that–lacking zero–they had no way to indicate successful termination of their C programs.” (Robert Firth) -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török Checkout Lollyrewards.com http://www.lollyrewards.com - Giving credit, getting credit. Follow us on Twitter @lollyrewards https://twitter.com/lollyrewards Stay up to date on the latest offers by liking our Facebook page https://www.facebook.com/lollyrewards. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] Prone: Exception/debugging middleware
Fantastic! 2014-09-02 5:35 GMT+01:00 Kurt Schrader kschra...@gmail.com: Outstanding work! Just plugged it locally and used it to debug a particularly hairy issue on my side. This is super useful. -Kurt On Mon, Sep 1, 2014 at 10:48 PM, James Reeves ja...@booleanknot.com wrote: This looks rather nice. I'll certainly be trying it out. - James On 2 September 2014 01:06, Colin Fleming colin.mailingl...@gmail.com wrote: I don't do any web dev myself, but Prone looks really nice - congratulations! Great work. Cheers, Colin On 2 September 2014 02:05, Christian Johansen christ...@cjohansen.no wrote: Hi, Prone (http://clojars.org/prone - http://github.com/magnars/prone) is a new middleware for Ring apps that replaces the default exception page with an interactive page that presents the exception, stack trace and environment data in a more easily understandable way. It can also debug arbitrary data, and has a nice little client-side data browser. It's intention is to make it a lot easier to find the cause of errors when working on Clojure web applications. Here's a short video demoing it's use: https://dl.dropboxusercontent.com/u/3378230/prone-demo.mp4 Hope you find it useful! Christian -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török Checkout Lollyrewards.com http://www.lollyrewards.com - Giving credit, getting credit. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] core.async (and more) video tutorials
Hi, Btw When I click on the download video button, nothing gets downloaded. Tried on Firefox/Chrome - Mac. Is that a known issue? Same here. I could only download the videos I paid for, but not the free one. Also, I had sent you this email via support on that site but didn't get any reply, so resending it on this thread. +1 Thanks a lot. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Question: defrecord accessor efficiency without protocols
Hi, afaik the Clojure compiler will compile such calls to a direct field access, i.e. the fastest possible. This will happen whenever the compiler can infer the type information. You can facilitate this by using type hints if necessary. Regards, Las 2014-05-16 15:44 GMT+01:00 Dave Tenny dave.te...@gmail.com: (defrecord Foo [bar]) (:bar (Foo. 1)) Is clojure smart enough to make the :bar lookup O(1) as a known field of Foo? Or is it still a map-like O(logN) lookup? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török Checkout Lollyrewards.com http://www.lollyrewards.com - Giving credit, getting credit. Follow us on Twitter @lollyrewards https://twitter.com/lollyrewards Stay up to date on the latest offers by liking our Facebook pagehttps://www.facebook.com/lollyrewards . -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: data associated with a particular state
AFAIK the only thing that records do not support compared to StructMaps is namespaced keyword lookup, i.e. (:some-ns/a-key a-record). If you do not need this, you should consider using records. Las On Tue, Mar 25, 2014 at 4:52 PM, Moritz Ulrich mor...@tarn-vedra.de wrote: The data type created by defstruct isn't anything more than a map which can store the specified fields a bit more efficient than 'normal' maps. You can just `assoc' any other key-value pairs as in any other map. Also, have a look at records - I think StructMaps have been deprecated (or at least aren't recommended anymore) for some time now. A record (`defrecord') will do pretty much the same, just nicer ;-) On Tue, Mar 25, 2014 at 1:51 AM, cmhowa...@alaska.edu wrote: Hi. I'm very new to Clojure, but I've read most of the functional programming tutorial http://java.ociweb.com/mark/clojure/article.html. Suppose I have a data structure called node that can be in one of a number of different states -- namely, down, waiting, and running. Suppose that in the running state, the node has a job-id number associated with it, but such a number is not applicable in the other two states. Should I add an extra field, and only check that field in the running state, like so... (defstruct node :state :job-id) Or is there some better, or more clojure-ish, way to approach this? If I was doing this in Haskell, I think that I would perhaps make some kind of algebraic NodeState data type, and have the JobId only attached to the Running constructor. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: STM and persistent data structures performance on mutli-core archs
into uses reduce under the hood, you probably need fold to have the computation to run on FJ: (def a (time (r/foldcat (r/map #( Math/sin (* % %)) l) this runs more than 2x as fast on my macbook pro Las On Thu, Mar 20, 2014 at 10:34 AM, François Rey fmj...@gmail.com wrote: On 20/03/14 04:03, Andy C wrote: So, the following test puzzles me. Not because it takes virtually the same time (I know that Fork/Join is not cheap and memory is probably the biggest bottleneck here). But because I do not get why map (as opposed to r/ma) uses all 8 cores on my MacBookPro. All of them seem to be running according to Activity Monitor at more less the same level. user= (def l (into [] (range 6000))) #'user/l user= (time (def a (doall (map #(Math/sin (* % %)) l Elapsed time: 19986.18 msecs user= (time (def a (doall (into [] (r/map #( Math/sin (* % %)) l) Elapsed time: 18980.583 msecs I would also expect this code to run on a single CPU at any one time, however process/thread scheduling can make this thread run on different cores at different times. Depending on the sampling method the activity monitor may display another picture of what you would expect. On my linux machine, the cpu history graph shows it's using mostly one cpu at any one time, but it's not always the same cpu. I think the JVM uses all cores by default, and there's no standard way to specify thread affinityhttp://stackoverflow.com/questions/2238272/java-thread-affinity . -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- László Török Checkout Lollyrewards.com http://www.lollyrewards.com - Giving credit, getting credit. Follow us on Twitter @lollyrewards https://twitter.com/lollyrewards Stay up to date on the latest offers by liking our Facebook pagehttps://www.facebook.com/lollyrewards . -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Email delivery libs not working
same here, we are using Postal with Mailgun, no issues so far On Mon, Feb 24, 2014 at 1:42 PM, Dave Della Costa ddellaco...@gmail.comwrote: I'm sending authenticated emails via Mandrill with Postal and not having any trouble, and setting it up was pretty much a smooth workable out-of-the-gate solution. If you describe the errors or issues you're experiencing someone may be able to help, but it's absolutely not the case that these libraries don't work. (2014/02/24 19:33), The Dude (Abides) wrote: Hi, I'm new to clojure and have got a productive handle on CRUD, sessions, routing, writing functions. Last couple things are email delivery, image processing (resizing). So I looked on the clojure-toolbox site for email delivery libs with smtp authentication for a Mandrill acct fo transactional emails. I've used Mandrill in other langs right away zero glitch. Here's the results thus far in Clojure as a frame of reference for web domain use 2014: POSTAL https://github.com/drewr/postal#encryption-gmail-example Doesn't deliver. Tried number of examples in the docs. MAILER https://github.com/clojurewerkz/mailer Worked briefly, but not via Mandrill, no emails reached there. Authentication settings have no impact, uses Postal above lib for delivery. Tried number of examples in the docs. CLJ MAIL https://github.com/MayDaniel/clj-mail Out of date syntax. I googled and found a couple more in the quest to avoid having to do this via java heaven forbid: MMEmail http://blog.8thlight.com/micah-martin/2010/04/21/mmemail-my-first-clojure-open-source-contribution.html Says cannot connect to port 25 although my settings specify port 587 for Mandrill POSTMARK http://sjl.bitbucket.org/clojure-postmark/ Transactional email delivery service with a clojure lib. Will create an acct in morning and try it out. Doe anyone know of any other smooth workable out the gate solutions for email delivery? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
(go (loop [ ..] (try ... (catch ..)))) won't compile
Hi, I have a processing loop in a go block and I wanted to make sure that the processing continue with the next iteration if an exception is thrown. The following code doesn't seem to be accepted by the go macro: (go (loop [xs (range 10)] (when-let [x (first xs)] (try (println x) (recur (rest x)) (catch Throwable t nil) as it returns IllegalArgumentException No implementation of method: :emit-instruction of protocol: #'clojure.core.async.impl.ioc-macros/IEmittableInstruction found for class: clojure.core.async.impl.ioc_macros.Jmp I can't think of an alternative right now, any ideas? -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: (go (loop [ ..] (try ... (catch ..)))) won't compile
Sorry, too eager too soon. (loop (try ..) ) obviously doesn't work :) 2014/1/22 László Török ltoro...@gmail.com Hi, I have a processing loop in a go block and I wanted to make sure that the processing continue with the next iteration if an exception is thrown. The following code doesn't seem to be accepted by the go macro: (go (loop [xs (range 10)] (when-let [x (first xs)] (try (println x) (recur (rest x)) (catch Throwable t nil) as it returns IllegalArgumentException No implementation of method: :emit-instruction of protocol: #'clojure.core.async.impl.ioc-macros/IEmittableInstruction found for class: clojure.core.async.impl.ioc_macros.Jmp I can't think of an alternative right now, any ideas? -- László Török -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: (go (loop [ ..] (try ... (catch ..)))) won't compile
hi, that's what I ended up doing :) 2014/1/22 James Reeves ja...@booleanknot.com Just pull the exception out of the loop logic: (go (loop [xs (range 10)] (if-let [x (first xs)] (if (= ::error (try (println x) (catch Throwable t ::error))) (recur (rest x)) - James On 22 January 2014 11:05, László Török ltoro...@gmail.com wrote: Hi, I have a processing loop in a go block and I wanted to make sure that the processing continue with the next iteration if an exception is thrown. The following code doesn't seem to be accepted by the go macro: (go (loop [xs (range 10)] (when-let [x (first xs)] (try (println x) (recur (rest x)) (catch Throwable t nil) as it returns IllegalArgumentException No implementation of method: :emit-instruction of protocol: #'clojure.core.async.impl.ioc-macros/IEmittableInstruction found for class: clojure.core.async.impl.ioc_macros.Jmp I can't think of an alternative right now, any ideas? -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: contains? and transient set
Hi,
contains? is for checking whether a data structure contains the respective
key.
A more idiomatic way to check whether an element is in the set is
(#{1 2 3} 1) ;; = returns 1
(#{1 2 3} 0) ;; = returns nil
works for (transient #{1 2 3}) too.
Las
2013/12/4 Burt burkhardt.r...@googlemail.com
Does contains? and get not work with transient sets?
Examples:
(contains? #{1 2 3} 1)
; = true
(contains? (transient #{1 2 3}) 1)
; = IllegalArgumentException contains? not supported on type:
clojure.lang.PersistentHashSet$TransientHashSet
(get #{1 2 3} 1)
; = 1
(get (transient #{1 2 3}) 1)
; = nil
How can I check whether an element is contained in a transient set?
--
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
---
You received this message because you are subscribed to the Google Groups
Clojure group.
To unsubscribe from this group and stop receiving emails from it, send an
email to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
--
László Török
--
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
---
You received this message because you are subscribed to the Google Groups
Clojure group.
To unsubscribe from this group and stop receiving emails from it, send an email
to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
Re: contains? and transient set
cool! hope the patch is good for 1.6! :)
2013/12/4 Alex Miller a...@puredanger.com
Both contains? and get should work with transient sets imo.
This is already in jira: http://dev.clojure.org/jira/browse/CLJ-700.
Alex
On Wednesday, December 4, 2013 5:04:40 AM UTC-6, Burt wrote:
Does contains? and get not work with transient sets?
Examples:
(contains? #{1 2 3} 1)
; = true
(contains? (transient #{1 2 3}) 1)
; = IllegalArgumentException contains? not supported on type:
clojure.lang.PersistentHashSet$TransientHashSet
(get #{1 2 3} 1)
; = 1
(get (transient #{1 2 3}) 1)
; = nil
How can I check whether an element is contained in a transient set?
--
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
---
You received this message because you are subscribed to the Google Groups
Clojure group.
To unsubscribe from this group and stop receiving emails from it, send an
email to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
--
László Török
--
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
---
You received this message because you are subscribed to the Google Groups
Clojure group.
To unsubscribe from this group and stop receiving emails from it, send an email
to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
Re: ANN 2 years of ClojureWerkz
Hi Michael, outstanding work, thanks for taking the lead on this effort and many thanks to all the contributors. Las Sent from my phone On Nov 20, 2013 12:13 AM, Bruce Durling b...@otfrom.com wrote: Michael, Congrats and keep on going. I love using your libraries. cheers, Bruce On Tue, Nov 19, 2013 at 11:05 PM, Michael Klishin michael.s.klis...@gmail.com wrote: A couple of weeks ago ClojureWerkz [1] turned two years old. We are at 29 projects (not including failed experiments) and kicking. There have been dozens of contributors, entire major releases brilliantly managed by people outside of our tiny core team, and a pretty high bar in project quality sustained [2] [3]. I think it's fair to say that there have been positive changes in the overall Clojure library ecosystem, hopefully in part due to how vocal we've been (102 blog posts on blog.clojurewerkz.org this year alone). These days many world famous institutions and companies we respect use various ClojureWerkz projects to power their products and internal tools. Needless to say, we did not plan for it in 2011. So thank you, both users and contributors. There are some new projects in the pipeline and our values do not change: documentation, sane release practices, ease of contributing and backwards compatibility. We love all that boring stuff. Here's to another few years! 1. http://clojurewerkz.org 2. http://blog.clojurewerkz.org/blog/2013/04/20/how-to-make-your-open-source-project-really-awesome/ 3. http://www.slideshare.net/michaelklishin/open-source-responsibly -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- @otfrom | CTO co-founder @MastodonC | mastodonc.com See recent coverage of us in the Economist http://econ.st/WeTd2i and the Financial Times http://on.ft.com/T154BA -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: abysmal multicore performance, especially on AMD processors
Hi, I believe Clojure's original mission has been giving you tools for handling concurrency[1] in your programs in a sane way. However, with the advent of Reducers[2], the landscape is changing quite a bit. If you're interested in the concurrency vs. parallelism terminology and what language constructs supporting them are available, [3] should give you a very good overview. I understand, I haven't actually answered you're question, but I wasn't sure whether you're referring to concurrency or parallelism. :) Las [1] http://clojure.org/concurrent_programming [2] http://clojure.com/blog/2012/05/08/reducers-a-library-and-model-for-collection-processing.html [3] http://clojure-doc.org/articles/language/concurrency_and_parallelism.html 2013/11/6 Dave Tenny dave.te...@gmail.com As a person who has recently been dabbling with clojure for evaluation purposes I wondered if anybody wanted to post some links about parallel clojure apps that have been clear and easy parallelism wins for the types of applications that clojure was designed for. (To contrast the lengthy discussion and analysis of this topic that is *hopefully* the exception and not the rule). Any good links here? Any high profile stuff? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: always function?
Hi, (constantly 5) will return a function that takes any number of args and always returns 5. See http://clojuredocs.org/clojure_core/clojure.core/constantly. Las 2013/8/25 Christian Sperandio christian.speran...@gmail.com Hi, Is there a function builds a function that returns always the same value? In coder words, this sort of function: (defn always [v] (fn [ _] v)) If this function exists already, I prefer use it rather than reinvent the wheel :) Christian -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [ANN] Carmine (Redis client) v2, Nippy (serializer) v2 are out
Peter this is wonderful, kudos! I'll give it a spin tonight. Las Sent from my phone On Jul 22, 2013 7:04 PM, Peter Taoussanis ptaoussa...@gmail.com wrote: Hey all, quick update: just pushed *Carmine v2.0.0* and *Nippy v2.0.0* to Clojars. Carmine: GitHub https://github.com/ptaoussanis/carmine | Changeloghttps://github.com/ptaoussanis/carmine/blob/master/CHANGELOG.md| API docs http://ptaoussanis.github.io/carmine/ | [com.taousso/carmine 2.0.0.0] Nippy: GitHub https://github.com/ptaoussanis/nippy | Changeloghttps://github.com/ptaoussanis/nippy/blob/master/CHANGELOG.md | API docs http://ptaoussanis.github.io/nippy/ | [com.taousso/nippy 2.0.0.0] Thanks to all the folks that helped get these ready. Happy hacking, cheers! - Peter Taoussanis (taoensso.com https://www.taoensso.com/) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
clojure 1.5 cheatsheet?
Hi, is there a clojure 1.5 cheatsheet somewhere, the last I could find was 1.4. Thanks, -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: clojure 1.5 cheatsheet?
Thx, i saw that but the page says 1.3 and 1.4 :-) Sent from my phone On Jun 24, 2013 6:17 PM, Andy Fingerhut andy.finger...@gmail.com wrote: That link is also available near the top of http://clojure.org/cheatsheet(Download other versions with tooltips). There are a few things new in 1.5 on the latest version, but I haven't yet included any of the new reducers functions there yet. If anyone has a better suggestion for categorizing them, other than simply putting them all together into one category together, I am open to suggestions. Andy On Mon, Jun 24, 2013 at 3:18 AM, terjesb terj...@gmail.com wrote: http://jafingerhut.github.io kl. 11:38:41 UTC+2 mandag 24. juni 2013 skrev Las følgende: Hi, is there a clojure 1.5 cheatsheet somewhere, the last I could find was 1.4. Thanks, -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Clojure 1.6 API: clojure.lang.IFn and clojure.api.API
Thanks Kevin, it's all clear now. Sent from my phone On Jun 24, 2013 6:38 PM, Kevin Downey redc...@gmail.com wrote: On 6/24/13 7:53 AM, Jörg Winter wrote: Hi Stuart, ok, so my question is actually more about how to create some clojure Runtime, filling it with additional namespaces, i.e. more than just clojure.core. I just discovered the RT class which could be what I want ( though its not official API ?) I need to make clojure runtime avail. for an IDE plugin, thats the background here. What do you think of Using RT like that ? I mean instantiating a clojure environment by RT.doInit maybe I really dont need to have a REPL for this, as I just want to query for functions and vars via API Best, Joerg the ticket http://dev.clojure.org/jira/browse/CLJ-1188 for API might be enlightening. it has some discussion and also links to the design wiki page. -- And what is good, Phaedrus, And what is not good— Need we ask anyone to tell us these things? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Clojure 1.6 API: clojure.lang.IFn and clojure.api.API
Can you please provide an example for such a usw cause? Thanks Las On Jun 23, 2013 1:38 PM, Stuart Halloway stuart.hallo...@gmail.com wrote: Hi Joerg, I am not sure I understand your question. The API class is for intraprocess communication, not interprocess. All API does is provide a public, supported entry point for the kinds of things people are already doing with Var. The latter is undesirable because using Var makes it way too easy to marry implementation detail. Stu On Sat, Jun 22, 2013 at 6:01 AM, Jörg Winter jwin1...@gmail.com wrote: So these APIs are new in 1.6-SNAPSHOT and from what I understand provide an integration api between Java and Clojure-Runtime (symbols and their invocation). Apart from limitations which probably exist, what is the mode of execution for these API-calls ? For example if a tool/IDE starts a (REPL) _process_ by calling ClojureUtils.CLOJURE_MAIN, how am I supposed to call API.var(clojure.core, +); ? How would I get the JVMs class-instance of API if I don't add some kind of inter-process communication ? Any known projects using this new API already ? Joerg -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: multimethods for non constant values?
you need a dispatch functions that produces discrete dispatch values using your example: (defmulti x #(cond ( % 10) :less-than-10 ;;... further conditions producing different dispatch values )) ;; dispatch on the dispatch values (defmethod x :less-then-10 [x] (do )) Hope it helps Las 2013/6/23 Dennis Haupt d.haup...@gmail.com i found example that i can do (defmethod x 5 [y] (do stuff)) but can i do (defmethod #( % 10) [y] (do stuff)) somehow? like in a pattern match of haskell/scala? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Why does peek on a seq of vector fail?
Hi, I think it's by design. It only works with concrete data structure (list, vector, queue) types that implement clojure.lang.IPersistentStack Las 2013/6/20 Jason Gilman jason.gil...@gmail.com Also, I really appreciate anyone who takes the time to answer. My company is currently evaluating Clojure. I'm trying to determine if this is non-idiomatic use of the language or some other issue. Doing something like this can cause the bug to occur without directly calling seq on a vector: (defn bar [my-list n] (if (= n 0) (peek my-list) (bar (rest my-list) (dec n (bar [1 2 3] 1) Both rest and peek work on a vector without a problem but the combination of the two causes problems. On Thursday, June 20, 2013 3:54:43 PM UTC-4, Jason Gilman wrote: Why does (peek (seq [1])) result in: ClassCastException clojure.lang.PersistentVector$**ChunkedSeq cannot be cast to clojure.lang.IPersistentStack clojure.lang.RT.peek (RT.java:634) Peek documentation For a list or queue, same as first, for a vector, same as, but much more efficient than, last. If the collection is empty, returns nil. implies that there shouldn't be a problem working with vectors. This works without issue: (peek [1]) This is on Clojure 1.5.1 -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: cannot import namespace reducers
Hi, there are two ways to deal with this: a) use Java 7 2013/6/16 Johannes bra...@nordakademie.de Hi, trying (require '[clojure.core.reducers :as r]) at the repl prompt the error message CompilerException java.lang.ClassNotFoundException: jsr166y.ForkJoinPool, compiling:(clojure/core/reducers.clj:56:21) What is going wrong? Johannes -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: cannot import namespace reducers
.. sorry, gmail's new annoying keyboard shortcut b) include the dependency to the forkjoin library [1] that is not included in Java6 Las [1] http://mavenhub.com/mvn/central/org.coconut.forkjoin/jsr166y/070108 2013/6/16 László Török ltoro...@gmail.com Hi, there are two ways to deal with this: a) use Java 7 2013/6/16 Johannes bra...@nordakademie.de Hi, trying (require '[clojure.core.reducers :as r]) at the repl prompt the error message CompilerException java.lang.ClassNotFoundException: jsr166y.ForkJoinPool, compiling:(clojure/core/reducers.clj:56:21) What is going wrong? Johannes -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: cannot import namespace reducers
(require '[clojure.core.reducers :as r]) is correct. (:require '[clojure.core.reducers :as r]) only works within the ns macro: (ns 'yournamespace (:require '[clojure.core.reducers :as r])) Las 2013/6/16 Mayank Jain firesof...@gmail.com Try (:require '[clojure.core.reducers :as r]) i.e. :require On Mon, Jun 17, 2013 at 1:38 AM, Johannes bra...@nordakademie.de wrote: Hi, trying (require '[clojure.core.reducers :as r]) at the repl prompt the error message CompilerException java.lang.ClassNotFoundException: jsr166y.ForkJoinPool, compiling:(clojure/core/reducers.clj:56:21) What is going wrong? Johannes -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Regards, Mayank. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: cannot import namespace reducers
I'm on Java7 and OS X 10.8.4, no problem over here. :) 2013/6/16 Johannes Brauer bra...@nordakademie.de thank you, Las, for the quick tip. I will give Java 7 a try. I hope there are no problems on Mac OS 10.8.4 Johannes Am 16.06.2013 um 22:15 schrieb László Török ltoro...@gmail.com : .. sorry, gmail's new annoying keyboard shortcut b) include the dependency to the forkjoin library [1] that is not included in Java6 Las [1] http://mavenhub.com/mvn/central/org.coconut.forkjoin/jsr166y/070108 2013/6/16 László Török ltoro...@gmail.com Hi, there are two ways to deal with this: a) use Java 7 2013/6/16 Johannes bra...@nordakademie.de Hi, trying (require '[clojure.core.reducers :as r]) at the repl prompt the error message CompilerException java.lang.ClassNotFoundException: jsr166y.ForkJoinPool, compiling:(clojure/core/reducers.clj:56:21) What is going wrong? Johannes -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Staatlich anerkannte private Fachhochschule NORDAKADEMIE Gemeinnützige Aktiengesellschaft Köllner Chaussee 11 25337 Elmshorn Vorstand: Prof. Dr. Georg Plate (Vorsitzender), Dipl.-Ing. Jörg Meier (stellv. Vorstand) Vorsitzender des Aufsichtsrats: Dr. h.c. Hans-Heinrich Bruns Sitz: Elmshorn, Amtsgericht Pinneberg, HRB 1682 -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: cannot import namespace reducers
are you on clojure 1.5+ ? If I launch the REPL using lein repl and then (require 'clojure.core.reducers) it works ok for me. 2013/6/16 Johannes Brauer bra...@nordakademie.de now, I've Java 7 installed and get another error message: Exception namespace 'clojure.core.reducers' not found clojure.core/load-lib (core.clj:5380) any further hints? Johannes Am 16.06.2013 um 22:43 schrieb Johannes Brauer bra...@nordakademie.de : thank you, Las, for the quick tip. I will give Java 7 a try. I hope there are no problems on Mac OS 10.8.4 Johannes Am 16.06.2013 um 22:15 schrieb László Török ltoro...@gmail.com : .. sorry, gmail's new annoying keyboard shortcut b) include the dependency to the forkjoin library [1] that is not included in Java6 Las [1] http://mavenhub.com/mvn/central/org.coconut.forkjoin/jsr166y/070108 2013/6/16 László Török ltoro...@gmail.com Hi, there are two ways to deal with this: a) use Java 7 2013/6/16 Johannes bra...@nordakademie.de Hi, trying (require '[clojure.core.reducers :as r]) at the repl prompt the error message CompilerException java.lang.ClassNotFoundException: jsr166y.ForkJoinPool, compiling:(clojure/core/reducers.clj:56:21) What is going wrong? Johannes -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Staatlich anerkannte private Fachhochschule NORDAKADEMIE Gemeinnützige Aktiengesellschaft Köllner Chaussee 11 25337 Elmshorn Vorstand: Prof. Dr. Georg Plate (Vorsitzender), Dipl.-Ing. Jörg Meier (stellv. Vorstand) Vorsitzender des Aufsichtsrats: Dr. h.c. Hans-Heinrich Bruns Sitz: Elmshorn, Amtsgericht Pinneberg, HRB 1682 -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Staatlich anerkannte private Fachhochschule NORDAKADEMIE Gemeinnützige Aktiengesellschaft Köllner Chaussee 11 25337 Elmshorn Vorstand: Prof. Dr. Georg Plate (Vorsitzender), Dipl.-Ing. Jörg Meier (stellv. Vorstand) Vorsitzender des Aufsichtsrats: Dr. h.c. Hans-Heinrich Bruns Sitz: Elmshorn, Amtsgericht Pinneberg, HRB 1682 -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you
Re: cannot import namespace reducers
Then you are having a path problem. Your lein is still using java6 Check your $PATH and $JAVA_HOME env. variables. As this not strictly clojure related, let's not spam the list, im happy to help off list Sent from my phone On Jun 16, 2013 11:22 PM, Johannes Brauer bra...@nordakademie.de wrote: I am on clojure 1.5.1 and I use lein repl. But after (require '[clojure.core.reducers :as r]) I still get the same error message as with Java 6: CompilerException java.lang.ClassNotFoundException: jsr166y.ForkJoinPool, compiling:(clojure/core/reducers.clj:56:21) A second input of (require '[clojure.core.reducers :as r]) generates the message: Exception namespace 'clojure.core.reducers' not found clojure.core/load-lib (core.clj:5380) Johannes Am 16.06.2013 um 23:16 schrieb László Török ltoro...@gmail.com : are you on clojure 1.5+ ? If I launch the REPL using lein repl and then (require 'clojure.core.reducers) it works ok for me. 2013/6/16 Johannes Brauer bra...@nordakademie.de now, I've Java 7 installed and get another error message: Exception namespace 'clojure.core.reducers' not found clojure.core/load-lib (core.clj:5380) any further hints? Johannes Am 16.06.2013 um 22:43 schrieb Johannes Brauer bra...@nordakademie.de : thank you, Las, for the quick tip. I will give Java 7 a try. I hope there are no problems on Mac OS 10.8.4 Johannes Am 16.06.2013 um 22:15 schrieb László Török ltoro...@gmail.com : .. sorry, gmail's new annoying keyboard shortcut b) include the dependency to the forkjoin library [1] that is not included in Java6 Las [1] http://mavenhub.com/mvn/central/org.coconut.forkjoin/jsr166y/070108 2013/6/16 László Török ltoro...@gmail.com Hi, there are two ways to deal with this: a) use Java 7 2013/6/16 Johannes bra...@nordakademie.de Hi, trying (require '[clojure.core.reducers :as r]) at the repl prompt the error message CompilerException java.lang.ClassNotFoundException: jsr166y.ForkJoinPool, compiling:(clojure/core/reducers.clj:56:21) What is going wrong? Johannes -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Staatlich anerkannte private Fachhochschule NORDAKADEMIE Gemeinnützige Aktiengesellschaft Köllner Chaussee 11 25337 Elmshorn Vorstand: Prof. Dr. Georg Plate (Vorsitzender), Dipl.-Ing. Jörg Meier (stellv. Vorstand) Vorsitzender des Aufsichtsrats: Dr. h.c. Hans-Heinrich Bruns Sitz: Elmshorn, Amtsgericht Pinneberg, HRB 1682 -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Staatlich anerkannte private Fachhochschule NORDAKADEMIE Gemeinnützige Aktiengesellschaft Köllner Chaussee 11 25337 Elmshorn Vorstand: Prof. Dr. Georg Plate (Vorsitzender), Dipl.-Ing. Jörg Meier (stellv. Vorstand) Vorsitzender des Aufsichtsrats: Dr. h.c. Hans-Heinrich
Re: Looking for Clojure freelancers
Hi Peter, I might be interested. I am a PhD candidate in Munich, where are you based? Regards, Laszlo Török 2013/6/3 Peter Taoussanis ptaoussa...@gmail.com Hi all, From time to time I have need for one or two extra hands (or, would that be pairs of hands?) on larger projects. Specifically, am looking for Clojure developers that'd be interested in occasional adhoc/freelance development work. Most of my work is on the web application side, but it can vary. What I'd like to ask is this: if anyone's interested, drop me an email (*ptaoussanis at taoensso.com*) with some basic info including: - Contact details (would prefer an international telephone number also if possible). - Your experience / informal CV (open-source stuff is my preferred reference, especially if it's Clojure-based). - Any particular areas of interest/expertise (e.g. you especially want to work with Datomic, backend services, Clojurescript, whatever). - Your rate + how negotiable it'd be and/or how it'd scale with longer-term jobs. I can then keep your details on file and give an occasional shout if something comes up that I could potentially use you for. Whole thing'd be about as informal as it gets: terms will vary based on the particular job, but I'll include all of that in the email so you can decide if/when something grabs your fancy. Cheers! - Peter (taoensso.com https://www.taoensso.com) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Looking for Clojure freelancers
Damn Gmail, sorry this was not meant for the list. 2013/6/3 László Török ltoro...@gmail.com Hi Peter, I might be interested. I am a PhD candidate in Munich, where are you based? Regards, Laszlo Török 2013/6/3 Peter Taoussanis ptaoussa...@gmail.com Hi all, From time to time I have need for one or two extra hands (or, would that be pairs of hands?) on larger projects. Specifically, am looking for Clojure developers that'd be interested in occasional adhoc/freelance development work. Most of my work is on the web application side, but it can vary. What I'd like to ask is this: if anyone's interested, drop me an email (*ptaoussanis at taoensso.com*) with some basic info including: - Contact details (would prefer an international telephone number also if possible). - Your experience / informal CV (open-source stuff is my preferred reference, especially if it's Clojure-based). - Any particular areas of interest/expertise (e.g. you especially want to work with Datomic, backend services, Clojurescript, whatever). - Your rate + how negotiable it'd be and/or how it'd scale with longer-term jobs. I can then keep your details on file and give an occasional shout if something comes up that I could potentially use you for. Whole thing'd be about as informal as it gets: terms will vary based on the particular job, but I'll include all of that in the email so you can decide if/when something grabs your fancy. Cheers! - Peter (taoensso.com https://www.taoensso.com) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Problem seting up ritz nrepl in emacs
Hi,
I think ac-nrepl doesn't play nice with ritz, try disabling it.
Las
Sent from my phone
On Jun 3, 2013 5:28 PM, Novi Border novibor...@gmail.com wrote:
Hi
I am currently developing clojure in sublime text, and have tried eclipse
before, but I would like to switch to emacs for all the goodies it brings.
I have followed a number of tutorials for seting up emacs enviroment but I
can't get the ritz debuger to work.
I allways get the following error after nrepl-ritz-jack-in
java.io.FileNotFoundException: Could not locate complete/core__init.class
or complete/core.clj on classpath:
at clojure.lang.RT.load (RT.java:443)
clojure.lang.RT.load (RT.java:411)
clojure.core$load$fn__5018.invoke (core.clj:5530)
clojure.core$load.doInvoke (core.clj:5529)
clojure.lang.RestFn.invoke (RestFn.java:408)
clojure.core$load_one.invoke (core.clj:5336)
clojure.core$load_lib$fn__4967.invoke (core.clj:5375)
clojure.core$load_lib.doInvoke (core.clj:5374)
clojure.lang.RestFn.applyTo (RestFn.java:142)
clojure.core$apply.invoke (core.clj:619)
clojure.core$load_libs.doInvoke (core.clj:5413)
clojure.lang.RestFn.applyTo (RestFn.java:137)
clojure.core$apply.invoke (core.clj:619)
clojure.core$require.doInvoke (core.clj:5496)
clojure.lang.RestFn.invoke (RestFn.java:408)
user$eval2549.invoke (SOURCE_FORM_4:1)
clojure.lang.Compiler.eval (Compiler.java:6619)
clojure.lang.Compiler.eval (Compiler.java:6582)
clojure.core$eval.invoke (core.clj:2852)
ritz.repl_utils.compile$eval_region.invoke (compile.clj:55)
ritz.nrepl.middleware.tracking_eval$evaluate$fn__2006.invoke
(tracking_eval.clj:51)
clojure.lang.AFn.applyToHelper (AFn.java:159)
clojure.lang.AFn.applyTo (AFn.java:151)
clojure.core$apply.invoke (core.clj:617)
clojure.core$with_bindings_STAR_.doInvoke (core.clj:1788)
clojure.lang.RestFn.invoke (RestFn.java:425)
ritz.nrepl.middleware.tracking_eval$evaluate.invoke
(tracking_eval.clj:48)
ritz.nrepl.middleware.tracking_eval$eval_reply$fn__2020.invoke
(tracking_eval.clj:89)
clojure.core$comp$fn__4154.invoke (core.clj:2330)
clojure.tools.nrepl.middleware.interruptible_eval$run_next$fn__913.invoke
(interruptible_eval.clj:138)
clojure.lang.AFn.run (AFn.java:24)
java.util.concurrent.ThreadPoolExecutor.runWorker
(ThreadPoolExecutor.java:1145)
java.util.concurrent.ThreadPoolExecutor$Worker.run
(ThreadPoolExecutor.java:615)
java.lang.Thread.run (Thread.java:722)
I am using stock ubuntu version of emacs (24) and have installed the
following packages (tried both marmelade and melpa and the error persists).
I have installed ac-nrepl, nrepl, nrepl-ritz, clojure-more,
rainbow-delimiters, starterkit and paredit.
I have leiningen 2.1.3 installed. I have tried lein clean on the project
btw..
This is my profiles.clj:
{:user {:dependencies [[org.clojure/tools.namespace 0.2.3]
[spyscope 0.1.3]
[criterium 0.4.1]
[ritz/ritz-nrepl-middleware 0.7.0]]
:injections [(require '(clojure.tools.namespace repl find))
; try/catch to workaround an issue where `lein repl`
outside a project dir
; will not load reader literal definitions correctly:
(try (require 'spyscope.core)
(catch RuntimeException e))]
:plugins [[lein-pprint 1.1.1]
[lein-beanstalk 0.2.6]
[lein-clojars 0.9.1]
[lein-create-template 0.1.1]
[lein-marginalia 0.7.1]
[lein-ritz 0.7.0]
[lein-midje 3.0.0]]}
:repl-options {:nrepl-middleware
[ritz.nrepl.middleware.javadoc/wrap-javadoc
ritz.nrepl.middleware.simple-complete/wrap-simple-complete]}}
In the project I use clojure 1.5.1.
BR
--
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
---
You received this message because you are subscribed to the Google Groups
Clojure group.
To unsubscribe from this group and stop receiving emails from it, send an
email to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
--
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
Re: Problem seting up ritz nrepl in emacs
members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@**googlegroups.com For more options, visit this group at http://groups.google.com/**group/clojure?hl=enhttp://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+u...@**googlegroups.com. For more options, visit https://groups.google.com/**groups/opt_outhttps://groups.google.com/groups/opt_out . -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [ANN] Leiningen 2.2.0 released
This amazing! Thanks everyone who contributed! Sent from my phone On May 29, 2013 7:37 PM, Phil Hagelberg p...@hagelb.org wrote: Greetings fellow humans. I'm happy to announce the release of Leiningen 2.2.0. Notable new features include support for -javaagent, (used for certain VM-level instrumentation tools) and the ability to deploy arbitrary files from the filesystem rather than just project artifacts. There are a couple changes to watch out for. Firstly, the repl task no longer bundles the clojuredocs client. You can add it back in with the :dev profile, but keeping it out by default sidesteps a number of confusing dependency conflicts (in particular Jackson and the Apache HTTP Client) which only manifest in the repl task. The target directory is now scoped by profile sets, which means that things like class files produced by one set of profiles won't be visible to task runs with different profiles. This should mean fewer cases in which you need to run `lein clean` to fix things. The `uberjar` task now applies its own profile, so if you have something like a `:main` entry which is only needed for uberjars you can put it there in order to avoid having AOT in your regular development cycle. More changes: https://github.com/technomancy/leiningen/blob/e4b66b2/NEWS.md As usual, running `lein upgrade` should get you to the latest, though there's a bug in older versions where you might have to run it twice to get 2.2.0. Enjoy! -Phil -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [ANN] http-kit 2.0.0 released
Hi, regarding the perf. improvements, is it client or server? Thx Las 2013/5/3 Michael Klishin michael.s.klis...@gmail.com 2013/5/3 Feng Shen shen...@gmail.com Compare to 2.0.0, noticeable changes: 1. Much faster: about 30%~80% faster. 2. The client support HTTPS now 3. :as option to do client output coercion Not that noticeable changes: 1. few minor bugs fixes 2. less RAM usage The full update log: https://github.com/http-kit/http-kit/blob/master/history.md I'd highly recommend starting a new thread for each new version. Also, your change log is in chronological order. Keeping it in reverse chronological order (2.1.0 first) would make it much easier to quickly discover recent changes. Good job on the performance improvements! -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [ANN] Prismatic's Plumbing/Graph 0.1.0 is released with huge performance improvements
Hi, First all congratulations to the new release! Looking at the change log, I'm not sure I understand the following: Explicit output-schema metadata on a fnk is taken as gold, rather than being merged with explicit data by analyzing the fnk body, and must be explicit rather than a spec Thx Sent from my phone On May 1, 2013 8:46 PM, Jason Wolfe ja...@w01fe.com wrote: Version 0.1.0 of Prismatic's Plumbing/Graph has just been released. The biggest change is backwards-compatible performance improvements of up to 40x for eager compilation, brining Graph to within 20% or so of hand-coded performance for trivial node functions. This was work done by Leon Barrett on a 'sprintbatical' from the Climate Corp, and he's written a great blog post about the update [1]. There are also a handful of small changes and improvements described in the changelog [2]. We've also created a mailing list for Plumbing/Graph [3], so feel free to ask/answer questions, discuss feature requests/bugs, and generally talk about how you are or would like to use Plumbing/Graph there. Cheers, Jason [1] http://blog.getprismatic.com/blog/2013/5/1/graph-faster-abstractions-for-structured-computation [2] https://github.com/Prismatic/plumbing/blob/v0.1.0/CHANGELOG.md [3] https://groups.google.com/forum/#!forum/prismatic-plumbing -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [ANN] Prismatic's Plumbing/Graph 0.1.0 is released with huge performance improvements
Hi, Does this make more sense? Yes, it's all clear now. :) Do you forsee running into any issues with this change? NATM. thx Las 2013/5/2 Jason Wolfe ja...@w01fe.com Yes, I suppose that's not very clear. Fnk attempts to guess the output schema of your function by looking at the body -- if the return value has literal map structure, this is automatically taken as the output schema. Since this analysis is fragile (maps are created programatically, within a let, by a delegate fn, etc), you can also provide explicit ^:output-schema metadata on the argument vector of the fnk. The previous version of plumbing attempted to be smart and 'merge' these two sources of schema data. Your explicit schema could provide additional details about structure, but if it contradicted the literal map structure an exception was thrown. Unfortunately, this required calling 'eval' on the explicit output schema so that it could be analyzed at compile time, in the case that it was itself not literal. We decided that this was a bad idea, so now when you pass ^:output-schema metadata it's directly used as the output-schema rather than trying to reconcile with the fnk body, obviating the need for 'eval'. Moreover, there used to be a special shortcut syntax that could be used in ^:output-schema, which was undocumented -- this has been removed, so ^:output-schema needs to be an actual schema. Does this make more sense? Do you forsee running into any issues with this change? Thanks, Jason On Thursday, May 2, 2013 12:22:07 AM UTC-7, Las wrote: Hi, First all congratulations to the new release! Looking at the change log, I'm not sure I understand the following: Explicit output-schema metadata on a fnk is taken as gold, rather than being merged with explicit data by analyzing the fnk body, and must be explicit rather than a spec Thx Sent from my phone On May 1, 2013 8:46 PM, Jason Wolfe ja...@w01fe.com wrote: Version 0.1.0 of Prismatic's Plumbing/Graph has just been released. The biggest change is backwards-compatible performance improvements of up to 40x for eager compilation, brining Graph to within 20% or so of hand-coded performance for trivial node functions. This was work done by Leon Barrett on a 'sprintbatical' from the Climate Corp, and he's written a great blog post about the update [1]. There are also a handful of small changes and improvements described in the changelog [2]. We've also created a mailing list for Plumbing/Graph [3], so feel free to ask/answer questions, discuss feature requests/bugs, and generally talk about how you are or would like to use Plumbing/Graph there. Cheers, Jason [1] http://blog.getprismatic.com/**blog/2013/5/1/graph-faster-** abstractions-for-structured-**computationhttp://blog.getprismatic.com/blog/2013/5/1/graph-faster-abstractions-for-structured-computation [2] https://github.com/Prismatic/**plumbing/blob/v0.1.0/**CHANGELOG.mdhttps://github.com/Prismatic/plumbing/blob/v0.1.0/CHANGELOG.md [3] https://groups.google.com/**forum/#!forum/prismatic-**plumbinghttps://groups.google.com/forum/#!forum/prismatic-plumbing -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@**googlegroups.com For more options, visit this group at http://groups.google.com/**group/clojure?hl=enhttp://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+u...@**googlegroups.com. For more options, visit https://groups.google.com/**groups/opt_outhttps://groups.google.com/groups/opt_out . -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure
Re: Reducers newbie question
Hi, Not sure what you are trying to do, but xxx is a lazy seq, thus it can only be consumed sequentially and fold falls back to reduce You need a vector. Las Sent from my phone On Apr 26, 2013 4:46 PM, Stanislav Yurin jusk...@gmail.com wrote: I was assuming that following code will fold in parallel, but it is reduced sequentially (require '[clojure.core.reducers :as r]) (defn test1 [x] (Thread/sleep 1000) (println (str Finished: x)) x) (def xxx (r/map test1 (range 100))) (r/fold + xxx) What am I doing wrong? Thanks. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Prismatic Plumbing and Graph Open-Source Release
+1, was also wondering 2013/2/7 Valentin Golev m...@valyagolev.net Graph definitions really remind me of `do` syntax in Haskell, where you can bind values and then use them in later steps of the computation. On Tuesday, January 29, 2013 10:46:54 PM UTC+4, Aria Haghighi wrote: Hey all, Prismatic has open-sourced our Plumbing and Graph library on githubhttps://github.com/prismatic/plumbing. Jason Wolfe gave a talkhttp://blog.getprismatic.com/blog/2012/10/1/prismatics-graph-at-strange-loop.htmlabout how we use graph for systems composition at Strange loop last year. Please give the library a whirl and let us know if you're using it and if you find any issues or feature requests. We use this library very heavily throughout our code and hope others find it useful as well. Best, Aria -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Prismatic Plumbing and Graph Open-Source Release
Hi, Good stuff! I was wondering how do you guys deal with decision nodes or does is make sense to model such a thing at the nodel level. Imagine having a diamond topology e.g. N1 /\ N2aN2b \/ N3 based on some input to N1, either N2a or N2b gets computed on which N3 depends. Does this make sense or should this decision step be wrapped in a node N2. Thanks, Las 2013/1/29 Aria Haghighi m...@aria42.com Hey all, Prismatic has open-sourced our Plumbing and Graph library on githubhttps://github.com/prismatic/plumbing. Jason Wolfe gave a talkhttp://blog.getprismatic.com/blog/2012/10/1/prismatics-graph-at-strange-loop.htmlabout how we use graph for systems composition at Strange loop last year. Please give the library a whirl and let us know if you're using it and if you find any issues or feature requests. We use this library very heavily throughout our code and hope others find it useful as well. Best, Aria -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- László Török -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: is intellij idea a good ide for clojure development?
+1 emacs live Id seriously discourage any Emacs newbie trying vanilla Emacs for Clojure development. Here, I'd also like to express my greatest appreciation to the creators for publishing and maintaining it. Las Sent from my phone On Jan 29, 2013 7:48 PM, Jay Fields j...@jayfields.com wrote: I use it for Clojure, html, css, js - no sql tho, so I can't comment on that. Otherwise, everything is great. I use emacs-live, which you can add to a vanilla emacs install and get right started. All you need to nrepl-jack-in. On Tue, Jan 29, 2013 at 1:21 PM, Josh Kamau joshnet2...@gmail.com wrote: Question: Is this emacs also good in other stuff such as javascript/css/html/sql Most of my projects involve writing this as well . Does anyone have a link to an up to date instructions on how to setup emacs for clojure ? most of what i find are out of date... e.g some talk of swank-clojure and i read somewhere that i should use nRepl or something like that. regards. Josh. On Tue, Jan 29, 2013 at 9:17 PM, Jay Fields j...@jayfields.com wrote: Rich, almost all keystrokes have names you can use from M-x - if you prefer that to keystrokes. On Tue, Jan 29, 2013 at 11:59 AM, Rich Morin r...@cfcl.com wrote: On Jan 29, 2013, at 08:50, Dennis Haupt wrote: i don't know emacs, so i would like to know as well what the killer features are that make you more productive with emacs Me two. More generally, I'm interested in features that DON'T require filling my head with zillions of obscure key sequences. -r -- http://www.cfcl.com/rdmRich Morin http://www.cfcl.com/rdm/resume r...@cfcl.com http://www.cfcl.com/rdm/weblog +1 650-873-7841 Software system design, development, and documentation -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To
Re: Prismatic Plumbing and Graph Open-Source Release
Graph was THE library I've been waiting for to be open sourced! Yay, thanks! Las Sent from my phone On Jan 29, 2013 7:57 PM, Aria Haghighi m...@aria42.com wrote: Hey all, Prismatic has open-sourced our Plumbing and Graph library on githubhttps://github.com/prismatic/plumbing. Jason Wolfe gave a talkhttp://blog.getprismatic.com/blog/2012/10/1/prismatics-graph-at-strange-loop.htmlabout how we use graph for systems composition at Strange loop last year. Please give the library a whirl and let us know if you're using it and if you find any issues or feature requests. We use this library very heavily throughout our code and hope others find it useful as well. Best, Aria -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Is there a better way to update a map atom?
How about
(swap! game-objects (fn [objects] (into {} (for [[k v] objects] [k (apply f
v args)])))
?
For large maps, it will use a transient map and assoc! instead of assoc,
that may result in a speedup.
Laszlo
2013/1/22 Stephen Compall stephen.comp...@gmail.com
On Jan 21, 2013 3:28 PM, Jim - FooBar(); jimpil1...@gmail.com wrote:
...or you can go all the way, skipping reset! completely:
(swap! game-objects (fn [objects] (reduce-kv #(assoc % %2 (update-object
%3)) {} objects) ))
Which also has the benefit of being safe, unlike any reset!-based update.
--
Stephen Compall
If anyone in the MSA is online, you should watch this flythrough.
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
Re: core/group-by with optional value-mapper function
]} It would be so cool to have this in the core. What do you guys think? Regards, Daniel Dinnyes -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com For more options, visit this group at http://groups.google.com/**group/clojure?hl=enhttp://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Little namespace question
Try (in-ns 'user-ns) Las On Dec 18, 2012 7:50 AM, Alan Shaw noden...@gmail.com wrote: user= *ns* #Namespace user user= (def user-ns *ns*) #'user/user-ns user= user-ns #Namespace user user= (in-ns user-ns) ClassCastException clojure.lang.Namespace cannot be cast to clojure.lang.Symbol clojure.lang.RT$1.invoke (RT.java:226) It appears I'm not understanding how namespaces are represented. Also, is it just wrong of me to want to remember a namespace I was working in and try to go back to it later? The slightly larger context is: I'm saving an s-expression with unqualified names in it into a file as a string. Also saving a string indicating the name of the environment in which that string should be (read and) eval'ed so that the names will resolve to the appropriate functions. Advice on managing this would be appreciated. -Alan Shaw -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Little namespace question
ah, sorry, it's a bit early for me
(in-ns (ns-name user-ns))
if you could post a simple example for the second part of your question I
maybe able to help.
Las
Alan Shaw 2012. december 18., kedd napon a következőt írta:
Ah no, that puts me in a new user-ns namespace! Not what I wanted!
On Mon, Dec 17, 2012 at 10:51 PM, László Török
ltoro...@gmail.comjavascript:_e({}, 'cvml', 'ltoro...@gmail.com');
wrote:
Try (in-ns 'user-ns)
Las
On Dec 18, 2012 7:50 AM, Alan Shaw noden...@gmail.comjavascript:_e({},
'cvml', 'noden...@gmail.com');
wrote:
user= *ns*
#Namespace user
user= (def user-ns *ns*)
#'user/user-ns
user= user-ns
#Namespace user
user= (in-ns user-ns)
ClassCastException clojure.lang.Namespace cannot be cast to
clojure.lang.Symbol clojure.lang.RT$1.invoke (RT.java:226)
It appears I'm not understanding how namespaces are represented.
Also, is it just wrong of me to want to remember a namespace I was
working in and try to go back to it later?
The slightly larger context is: I'm saving an s-expression with
unqualified names in it into a file as a string. Also saving a string
indicating the name of the environment in which that string should be (read
and) eval'ed so that the names will resolve to the appropriate functions.
Advice on managing this would be appreciated.
-Alan Shaw
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to
clojure@googlegroups.comjavascript:_e({}, 'cvml',
'clojure@googlegroups.com');
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com javascript:_e({}, 'cvml',
'clojure%2bunsubscr...@googlegroups.com');
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to
clojure@googlegroups.comjavascript:_e({}, 'cvml',
'clojure@googlegroups.com');
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com javascript:_e({}, 'cvml',
'clojure%2bunsubscr...@googlegroups.com');
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to
clojure@googlegroups.comjavascript:_e({}, 'cvml',
'clojure@googlegroups.com');
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com javascript:_e({}, 'cvml',
'clojure%2bunsubscr...@googlegroups.com');
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
Re: Meaning of =
Hi, Equality is never subjective. There maybe different equality relations defined. In most cases (integer) one os well served by intuition. In other cases (clojure's =) the definition may not be intuitive, but never subjective. On Dec 12, 2012 12:32 AM, Raoul Duke rao...@gmail.com wrote: one of the things which seem to be true but nowhere completely successfully fleshed out is the fact that equality is very subjective. there can and should be many different ways to pose and answer the question a == b. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Meaning of =
Great paper btw! On Dec 12, 2012 12:42 AM, Phil Hagelberg p...@hagelb.org wrote: On Tue, Dec 11, 2012 at 3:32 PM, Raoul Duke rao...@gmail.com wrote: one of the things which seem to be true but nowhere completely successfully fleshed out is the fact that equality is very subjective. there can and should be many different ways to pose and answer the question a == b. There is a very good explanation of an objective equality predicate in Henry Baker's Equal Rights for Functional Objects paper: http://home.pipeline.com/~hbaker1/ObjectIdentity.html Anyone interested in equality, FP, or why CL and Elisp are so annoying to work with should read this paper. Keep in mind that Clojure cheats in a few places in the name of convenience and doesn't quite implement what he's described though. -Phil -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: group-by vs. reducers?
insight.
After spending a few hours with it, I'm still pretty much clueless, so
hope to find someone here to help me out:
So if I understood the reducer lingo introduced in [2],[3] and group-by
correctly, it reduces the following reducing function on a collection
(fn group-by-reducef [keyfn ret x]
(let [k (keyfn x)]
(assoc ret k (conj (get ret k []) x
where keyfn is provided by a partial function application.
fold needs a combining function that takes two result maps that have
already been grouped and merges them.
A naive implementation could look like
(defn group-by-combinef
([] {})
([g1 g2]
(persistent!
(reduce (fn [res k v]
(assoc! res k (into (get res k []) v)))
(transient g1) g2
(defn group-by [f coll]
(fold (partial gr-by-reducef f) gr-by-combinef coll))
Now couple of questions:
1) I expected fold to actually perform the operation, how can I force
it to give me the result?
2) Can somehow the actual reducing at the leaf nodes still take
advantage of transient collections?
3) I took a look at flatten as it seems the closest match. Again, if
I call (flatten [[1 2] [2 4]]), I don't actually get the result. How do I
get to the result?
Thanks!
[1] https://github.com/**clojure/clojure/blob/master/**
src/clj/clojure/core/reducers.**cljhttps://github.com/clojure/clojure/blob/master/src/clj/clojure/core/reducers.clj
[2] http://clojure.com/blog/**2012/05/08/reducers-a-library-**
and-model-for-collection-**processing.htmlhttp://clojure.com/blog/2012/05/08/reducers-a-library-and-model-for-collection-processing.html
[3]
http://clojure.com/blog/**2012/05/15/anatomy-of-reducer.**htmlhttp://clojure.com/blog/2012/05/15/anatomy-of-reducer.html
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
On Clojure http://clj-me.cgrand.net/
Clojure Programming http://clojurebook.com
Training, Consulting Contracting http://lambdanext.eu/
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
group-by vs. reducers?
Hi,
As I was trying to wrap my head around the reducers library[1], I thought
implementing group-by would be a good exercise to gain some insight.
After spending a few hours with it, I'm still pretty much clueless, so hope
to find someone here to help me out:
So if I understood the reducer lingo introduced in [2],[3] and group-by
correctly, it reduces the following reducing function on a collection
(fn group-by-reducef [keyfn ret x]
(let [k (keyfn x)]
(assoc ret k (conj (get ret k []) x
where keyfn is provided by a partial function application.
fold needs a combining function that takes two result maps that have
already been grouped and merges them.
A naive implementation could look like
(defn group-by-combinef
([] {})
([g1 g2]
(persistent!
(reduce (fn [res k v]
(assoc! res k (into (get res k []) v)))
(transient g1) g2
(defn group-by [f coll]
(fold (partial gr-by-reducef f) gr-by-combinef coll))
Now couple of questions:
1) I expected fold to actually perform the operation, how can I force it to
give me the result?
2) Can somehow the actual reducing at the leaf nodes still take advantage
of transient collections?
3) I took a look at flatten as it seems the closest match. Again, if I
call (flatten [[1 2] [2 4]]), I don't actually get the result. How do I get
to the result?
Thanks!
[1]
https://github.com/clojure/clojure/blob/master/src/clj/clojure/core/reducers.clj
[2]
http://clojure.com/blog/2012/05/08/reducers-a-library-and-model-for-collection-processing.html
[3] http://clojure.com/blog/2012/05/15/anatomy-of-reducer.html
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
Re: Easy update function for nested structures
Hi, how about (reduce #(update-in % %2 tf) arr2d list-of-coordinates) given you 2d array is a vector of vectors and you supply a tf update function? Las 2012/12/3 JvJ kfjwhee...@gmail.com I'm wondering if there's something that can be used like update-in, but with multiple key-lists and values. Like, for example, taking a list of [x y] coordinates for a 2-dimensional array, and changing the values at all of those coordinates. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Object identity and with-meta
Hi,
only for persistent data structures (with a few caveats) [1]. For other
objects, such as function objects, equality check falls back to .equals().
Since with-meta returns a new object instance of an anonymous class,
.equals will always be false.
[1]
https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/Util.java#L23
Hope it helps,
Las
2012/11/23 N8Dawgrr nathan.r.matth...@gmail.com
I have unexplained behavior for with-meta.
As far as I understand with-meta should not alter object identity. E.g. if
we have the (= a b) = true for some a and b then
(= (with-meta a ma) (with-meta b mb)) = true should also hold for any ma
and mb.
So why do I get the following behavior at the REPL?
user (def f (partial * 2))
user (= f f)
true
user (= (with-meta f {:a 1}) (with-meta f {:a 1}))
false
Any help appreciated.
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
Re: ease of use
Alternatively, do as Moritz suggested, except don't install packages manually via M-x package-list-packages, but rather go and get https://github.com/overtone/emacs-live then nrepl.el keybindings are documented at https://github.com/kingtim/nrepl.el Good luck! Las 2012/11/23 Moritz Ulrich mor...@tarn-vedra.de Don't use Aquamacs. I don't know of the current state, but some time ago experienced the same stuff. It somehow doesn't work when using Aquamacs. I recommend Emacs.app from http://emacsformacosx.com or installation via homebrew (brew install emacs --cocoa brew linkapps). M-x package-list-packages, select nrepl and clojure-mode, hit x, setup finished. Leiningen2 is the perfect companion for this setup. On Fri, Nov 23, 2012 at 12:24 AM, atucker agjf.tuc...@gmail.com wrote: On the Mac, I got it kinda working, but can't work out how to break on a misjudged command, and the namespaces are permanently misaligned (in-ns doesn't work, C-c M-n doesn't work). It feels like nothing really works, perhaps it didn't install properly (M-x install-package just hung). -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
macroexpand-1 for clojurescript macros
Hi, How can I use macroexpand et. al to check an output of a clojurescript macro? As far as I know, clojurescript macros are clojure macros. However if I start script/repl and enter = (require 'cljs.compiler) = (require 'cljs.core) = (macroexpand-1 (cljs.core/gen-apply-to)) CompilerException java.lang.RuntimeException: Unable to resolve symbol: *unchecked-if* in this context, compiling:(NO_SOURCE_PATH:5) Btw, if I don't require 'cljs.compiler first, I get CompilerException java.lang.ClassNotFoundException: cljs.compiler, compiling:(cljs/core.clj:411) -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: macroexpand-1 for clojurescript macros
damn, stupid mistake of mine, thanks! 2012/11/21 Herwig Hochleitner hhochleit...@gmail.com Try quoting the code you want to macro expand, like: (macroexpand-1 '(cljs.core/gen-apply-to)) Otherwise clojure would try to macroexpand the result of (gen-apply-to) Am 21.11.2012 13:07 schrieb László Török ltoro...@gmail.com: Hi, How can I use macroexpand et. al to check an output of a clojurescript macro? As far as I know, clojurescript macros are clojure macros. However if I start script/repl and enter = (require 'cljs.compiler) = (require 'cljs.core) = (macroexpand-1 (cljs.core/gen-apply-to)) CompilerException java.lang.RuntimeException: Unable to resolve symbol: *unchecked-if* in this context, compiling:(NO_SOURCE_PATH:5) Btw, if I don't require 'cljs.compiler first, I get CompilerException java.lang.ClassNotFoundException: cljs.compiler, compiling:(cljs/core.clj:411) -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Will the upcoming Clojure 1.5 stuff be available in Clojurescript too?
Hi, I understand that the development of Clojure and Clojurescript is being managed separately which makes sense. However, I also noticed that there has been considerable effort to maintain some level of compatibility between the two. There is some nice stuff coming in Clojure 1.5 in core and I was wondering whether that will become available in Clojurescript as soon as 1.5 is baked. Las -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Are agents suitable for c10k concurrency?
Hi I would only add, that with Clojure 1.5 you can supply your own Executor using (send-via ), the default threadpools are not hard-wired anymore. See https://github.com/clojure/clojure/commit/f5f4faf95051f794c9bfa0315e4457b600c84cef#src/jvm/clojure/lang/Agent.javafor further details. Las On Nov 17, 2012 3:24 PM, Philip Potter philip.g.pot...@gmail.com wrote: send-off works by submitting a Runnable to a newCachedThreadPool. http://stackoverflow.com/questions/11316737/managing-agent-thread-pools-in-clojure A Runnable sent to a thread pool will have exclusive use of that thread until it completes; therefore, greater concurrency can only be achieved by more threads, and 10k connections will need 10k threads. I don't know much about asynchronous IO implementations in Clojure, but agents probably aren't what you want. Phil On 17 November 2012 13:06, Elliot ell...@deck36.net wrote: Hi all, I'm writing a c10k-style service, i.e. suppose 10,000 concurrent connections, mostly IO-bound. Clojure agents with `send-off` are fantastically close to what I want conceptually, but I'm curious about the implementation details--can anyone confirm, this would end up forking 10,000 threads, which would presumably kill the system under context-switching load? From what I understand, Erlang/Go have lightweight actor processes which are not true threads and are designed to have 10,000 of them spawned at once handling async-IO without problem. I'd prefer to stick with Clojure if possible but need to be able to handle the connection/IO-load. Anyone know how this works and/or has tried this in a production system? Any thoughts appreciated. Thanks! - Elliot -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Proposed change to let- syntax
+1, looking at the latest master, I think they need a better docstring, or
rather an example of use that makes it easier to grasp.
Regards,
Laszlo
2012/11/16 Jay Fields j...@jayfields.com
another thought - a really nice thing about if, let, and if-let is
that if you know how to use if and let, if-let just makes sense. You
can't say the same about -, let, and let- with the current proposal.
On Fri, Nov 16, 2012 at 7:32 AM, Alex Nixon a...@swiftkey.net wrote:
On 16 November 2012 01:25, Mark Engelberg mark.engelb...@gmail.com
wrote:
On Thu, Nov 15, 2012 at 5:17 PM, Alan Malloy a...@malloys.org wrote:
The primary point of let- is that you can insert it into an existing
-
pipeline.
That makes sense.
It does - thanks for the clarification.
So is let- intended to be *never* used outside of -? If so, can an
argument be made for enforcing its use within - to avoid (as far as I'm
aware) introducing a 'new' (value first, name second, no destructuring
support) binding syntax into core? Despite it being more verbose, I'd
rather read (- 42 (let- meaning-of-life (inc))) than (let- 42
meaning-of-life (inc)).
And on destructuring - the closest I can get with keeping compatibility
with
existing - forms would be
(- {:foo 1}
(let- {:keys [foo] :as x}
(assoc x :bar :foo)))
The pro is that you get the power of destructuring. The con is that this
would be the first occurrence of destructuring from outside of an
explicit
binding form.
--
Alex Nixon
Software Engineer | SwiftKey
a...@swiftkey.net | http://www.swiftkey.net/
++
WINNER - MOST INNOVATIVE MOBILE APP - GSMA GLOBAL MOBILE AWARDS 2012
Head office: 91-95 Southwark Bridge Road, London, SE1 0AX TouchType is a
limited company registered in England and Wales, number 06671487.
Registered
office: 91-95 Southwark Bridge Road, London, SE1 0AX
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
Re: Coding Standard - ns usage
Hi, I thought :require with :refer superseded :use :only. Or am I mistaken? Las On Nov 8, 2012 6:03 PM, Jim - FooBar(); jimpil1...@gmail.com wrote: I'm pretty sure this is still valid :) Jim On 08/11/12 16:57, David McNeil wrote: I notice the following item at http://dev.clojure.org/** display/design/Library+Coding+**Standardshttp://dev.clojure.org/display/design/Library+Coding+Standards Be explicit and minimalist about dependencies on other packages. (Prefer the :only option to use and require). The page was last edited on Mar 29, 2011 and ns usage has been discussed a fair bit since then... this leads to the question: Is the item quoted above still the standard for Clojure Libraries? Thanks. -David -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscribe@**googlegroups.comclojure%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/**group/clojure?hl=enhttp://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscribe@**googlegroups.comclojure%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/**group/clojure?hl=enhttp://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Rich's The Value of Values and REST
Hi, in my understanding, RESTful system design (as described in Roy Fielding's dissertation) does not advocate hiding any state behind a bunch of methods. :) In REST, application state is carried by the representation that is passed back and forth between the server and the client. It seems to me that a truly RESTful system design is very much in line of what Rich was talking about. Las 2012/8/15 Conrad drc...@gmail.com Hi Everyone... Quick question about Rich's latest talk: In it he eloquently argues that you don't want to systems to communicate with each other by calling each other's methods. Instead it is better to just move values between systems that can also be queued. It occurs to me that RESTful web interfaces essentially hide a big chunk of state behind a bunch of methods (i.e. the URIs you can GET/PUT/POST to.) Am I right in thinking that Rich's talk is an argument AGAINST RESTful design? It seems to me his talk would suggest the best interface would almost be a SOAPy interface, where all communication is to a single URL. (Of course unlike SOAP the calls wouldn't consist of method invocations but instead consist of a stream of values.) Is this right? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ClojureScript instead of CoffeeScript for complete web app development?
Hi, using the reducers library also eliminates the per-step allocation of temporary results when the processing code is composed of multiple functions, AFAIK. Las 2012/7/4 Balint Erdi balint.e...@gmail.com Hey, AFAIK the clojure reducers library gains its performance boost since the underlying JVM can make use of multiple cores. I wonder how this changes with Javascript being the platform. Don't JS engines have a single execution thread? Balint On Thursday, June 28, 2012 11:47:46 PM UTC+2, David Nolen wrote: reducers are already available - though further perf work needs to be done to really deliver on the performance promises. Even so I wouldn't be surprised if they already outperform many chained sequence operations. David On Thu, Jun 28, 2012 at 5:45 PM, Ben Mabey b...@benmabey.com wrote: On 6/24/12 10:31 PM, Christian M. wrote: I think the only problem (if it is a problem at all), which won't be solved soon is ClojureScript's performance resulting from creating a lot of implicit objects in very high level computations. Something like (filter (map (reduce ... ... (map ... can't be as fast and as memory-efficient for loops and in-place array operations of JS. In theory, the same holds for Clojure and Java as well, however, in contrast to ClojureScript, I never faced this problem on JVM yet. Does the new reducers library[1] work in ClojureScript? One of its advantages is that it avoids the per-step allocation overhead that you are mentioning with the chain of filters/maps/reduce calls. -Ben 1. http://clojure.com/blog/2012/**0**5/08/reducers-a-library-and-**mo** del-for-collection-**processing.**htmlhttp://clojure.com/blog/2012/05/08/reducers-a-library-and-model-for-collection-processing.html -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscribe@**googlegrou**ps.comclojure%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/**group**/clojure?hl=enhttp://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Why cannot last be fast on vector?
Warren, I think the issue is this: You claim there is sg. broken in clojure while admitting that you know little about how the design decision was made. People that know clojure's implementation and the history of design decisions inside-out offered advice why they think it is not broken, they took time to explain the rationale for decision and even offerred advice how to fix it for yourself should you insist on your view of the matter. It seems to me you a) need to reread these arguments to perhaps get a better grasp b) have chosen to ignore them. While you have right to do either of them, if it's b) not even the clojure gods can really help you unless you actually spend some time with the internals of clojure. ;-). Las 2012/6/30 Warren Lynn wrn.l...@gmail.com Craig: If the dominant community attitude is before you know everything about Clojure, you have no right to comment, then that itself will be the reason not to use Clojure. But I think that is just you, not the community. Although I am glad some people paid attention to this post, I have far more important things to do than seeking some attention from strangers. I hope I stimulated some thinking here. I am a lisp lover, and I feel Clojure has a good potential of being a great and practical language, but it has its broken parts too and I wish they get fixed, so I will have a better experience using it. That is my goal (obvious I hope). On Saturday, June 30, 2012 12:17:39 PM UTC-4, Craig Brozefsky wrote: Warren Lynn wrn.l...@gmail.com writes: As I mentioned before, the issue here is not just a fast last. The issue here is I find the design of Clojure wrong, or confusing. That really shakes my confidence in the whole system. To say stuff like this, then be demure about digging into the code and understanding how things work, followed by asking for others to be do the coding and be and advocate for your rather vague feeling of unease, strikes me as passive-aggressive attention seeking. To do such while top posting, well, it's just too much for me. 8^) -- Craig Brozefsky cr...@red-bean.com Premature reification is the root of all evil -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: [ANN] C2 v0.2.0: now with cljs data binding
Great, can't wait to try it, note the http://keminglabs.com/c2/ page still refers to 0.1.0. 2012/6/28 Kevin Lynagh ke...@keminglabs.com Of course, you may want a link to the library itself: https://github.com/lynaghk/c2 As always, to use from Clojure/ClojureScript just add this to your `project.clj`: [com.keminglabs/c2 0.2.0] -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to read a file into a string up until a line? Any way to make it lazy?
Hi, untested but: (require '[clojure.string :as str]) (with-open [reader (clojure.java.io/reader path/to/the/file)] (let [lines (line-seq reader) records (map #(str/split % #\/\/) lines)] ... do your processing here on the lazy record list )) L 2012/6/21 Joseph Guhlin joseph.guh...@gmail.com I have a 2.5GB file, and will have other files, where the records are mutli-line (variable length) and are separated by // on a line by itself. What is the best way to read the record into a sequence of strings for parsing, and act on that record, and read the next record? It'd be great if it was lazy, as it's 2.5GB and there will be other / larger files in the future. I have it reading the file just fine if there is only one entry, it was nice and easy as well as fast and concise, so I'd love to be able to do the entire thing in clojure if possible. Thanks, --Joseph -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: A tutorial for how to setup your clojure development environment for: Emacs, Leiningen and Linux.
+1, I had the same experience as Chris, lot of frustration until I found Emacs-live On Jun 20, 2012 1:54 PM, Chris Zheng zcaud...@gmail.com wrote: I was using textmate and a repl for the longest time because I was put off by the intricacies of emacs.. and then I found this: https://github.com/overtone/emacs-live and the tutorial that recommended it http://www.vijaykiran.com/2012/01/11/web-application-development-with-clojure-part-1/ It's great. I'm completely sold on emacs.. On any computer, I install emacs, install lein, run one command: $ git clone https://github.com/overtone/emacs-live ~/emacs.d Now I have everything I need to develop in clojure like hinting, autocomplete and docs. Most importantly, it has a black background and fluro text by default. NO CUSTOMISATIONS! I remember how difficult it was for me as a complete newbie coming into the language. Thinking in a functional style was hard enough, let alone trying to get swank working and then frustrating over every aspect of emacs banging my head against the wall would have been more productive. It was so frusting because I just wanted something that worked and a bunch of tutorials that showed me how to get started. Things like autocomplete and documentation are essential for learning the concepts quickly. Its only recently that a spate of them has come out for the joe programmer and its really good to see that happening. My 2 cents: - New users don't want complication. Give them one 'product' to start off with and then slowly introduce them to more concepts later - Videos and Tutorials are a must. Its not about showing off about look how short I can make my code man... Its about helping others see a new way to think about the problem. The only way to do that besides sitting down with them is through tutorials. Longer tutorials and demonstrations that work through a complete problem are more helpful than short ones that are demonstrating the 'feature.. Hats off in particular to Brian Marick ( http://vimeo.com/19404746), Chas Emerick ( http://www.youtube.com/watch?v=VVd4ow-ZcX0), and Phil Hagelburg ( https://peepcode.com/products/functional-programming-with-clojure) for taking the time to show the world how they worked through a 'real-world' problem. So basically, if a 'lead clojure evangelist' can either 'officially' or 'unofficially' recommend ONE emacs setup, along with a bunch of videos/tutorials that demonstrate how to code and how fast it is to design and code using the repl. Then that be enough to get people at least interested. Expanding on that idea, If there were a set of peepcode-like 1 to 1.5h tutorials for clojure and its libraries (an episode on ring, an episode on agents futures and watches, an episode on incanter, an episode on writing a dsl, an episode on aleph..., an episode on writing a clojurescript application and also doing 'play-by-play' videos with top clojure developers), I'm sure newbies are going to take up the language much faster because they will have the crutches to allow them to explore the clojure landscape without worrying about how to go about entering text into a arcane text-editor. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Docstring state deftype, defrecord etc. are still alpha?
Hi, I was reviewing some of the docstrings of programming constructs in the clojure.core namespace. I noticed that deftype and defrecord is still marked as alpha, subject to change. These features have been introduced in 1.2, is this correct? Also, transients, introduced in 1.1, still alpha? Thanks! -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: [PATCH] RFC: Add Functions `tabify` And `untabify`
+1 On Jun 8, 2012 6:54 PM, Stuart Halloway stuart.hallo...@gmail.com wrote: Whatever we do let's make sure we think about how to make it available in all Clojure dialects. Stu On Jun 8, 2012, at 8:49 AM, Jay Fields wrote: I wouldn't mind seeing more in clojure.string. e.g. daserize, underscore, pascal-case, camel-case +1 - Brian Marick, Artisanal Labrador Contract programming in Ruby and Clojure Occasional consulting on Agile www.exampler.com, www.twitter.com/marick -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: [ANN] Itsy 0.1.0 released, a threaded web spider written in Clojure
Hi, interesting project. I was wondering though how do you make sure two crawlers do not crawl the same URL twice if there is no global state? :) If I read it correctly you're going to have to spawn a lot of threads to have at least a few busy with extraction at an point in time, as most of them will be blocked most of the time while waiting for the page to be retrieved. You may also consider using the sitemap as a source of urls per domain, although this depends on the crawling policy. Regards, Laszlo 2012/6/1 Lee Hinman matthew.hin...@gmail.com -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi all, I'm pleased to announce the initial 0.1.0 release of Itsy. Itsy is a threaded web spider written in Clojure. A list of some of the Itsy features: - - Multithreaded, with the ability to add and remove workers as needed - - No global state, run multiple crawlers with multiple threads at once - - Pre-written handlers for writing to text files and ElasticSearch - - Skip URLs that have been seen before - - Domain limiting to crawl pages only belonging to a certain domain You should be able to use it from Clojars[1] with the following: [itsy 0.1.0] Please give it a try and open any issues on the github repo[2] that you find. Check out the readme for the full information and usage. thanks, Lee Hinman [1]: https://clojars.org/itsy [2]: https://github.com/dakrone/itsy -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.12 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBAgAGBQJPyDu+AAoJEJ1kZdQ6zsrgseoP/0j4HZ4k0Ok0f2u4HB7xm1kc V5oE67kqXKCJq7Nb4LQexbxEwbpQF1u6Zg9o7CvtUeMtLkQXAozIjJkk0H05HtEy lXINNupW2AylXnTzMd75E0ydeY+pvyNrG1EY5W1i5CcKhiruNcAQUNxh4UeCmMw2 G/TBhENW+24KtFEJBd1sum2+o86atMHxvlNruwheLYtzq1iSUbpJe6oZu0EzZaa7 DlrG1r8Gv77Tgbf+pYtFr+Bpf+ILaojh1lBJwb/8jPbaLwrI/TE4qdnOA+BERn0F 7qtNErxq5UBVhrYh9Nit53ZEyDkHLYGWc0P39F8nFfWeWN9C8hAd9GWFddyZw3xL eop7IF0XerGdPaM93qfnKDMJLUFGfakBeP4hZIH1k5Ouoou+ffqbIZbzKK4yQwlt 9VFKq7z0CsoNQ+sMwPWHjXTqNj62k1DYo1iyGFc0RHLyujuGtOna6ksh10PopIpz JxZX+txYXI5MsxLo6zGqHbuartXxhNUtoloYBi3BkD1Knmf5qYR/Irlzcy4TUIov QK/UNtvESSapKO/95HUgnw9wi0UDpOLHFTBTFU2XZkvNAalLwMLX9YZwAH79+htY C4cKLZjkME7wkvgq/HaMbRsPNuuJN8oBqDpmNzKW2DlJ6TZIdcjlgAVDBFL9oI1+ mMlBkEVBNGMK+9dWMHur =BcLy -END PGP SIGNATURE- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: [ANN] Itsy 0.1.0 released, a threaded web spider written in Clojure
Hi, don't want to turn this to a lengthy discussion about crawling, but happy to continue off list. ;) Sitemaps work surprisingly well in certain domains (web shops powered by standard web shop software, large e-commerce sites) and can make life easier based on our experience. Another point: i nice addition would be to observe polite crawling (e.g. do not retrieve more than one page per sec from a domain), we got banned once due to excessive traffic from a single IP. Anyway thanks for sharing, I hope to get some hacking time and implement one of our extractors as a handler in clojure and take out Itsy for a spin. :) Las 2012/6/1 Michael Klishin michael.s.klis...@gmail.com László Török: I was wondering though how do you make sure two crawlers do not crawl the same URL twice if there is no global state? :) By adding sharing state, for a single app instance, typically an atom. As for separating different instances, it is not uncommon to hash seed URLs (or domains) in such a way that two instances simply won't crawl the same site in parallel. You may also consider using the sitemap as a source of urls per domain, although this depends on the crawling policy. That does not work in practice. One reason is, sitemaps are often incomplete, out of date or missing completely. Another one, for most news websites and blogs, you will discover site structure a lot faster by frequently (within reason, of course) recrawling either first level pages or a seed of known section pages. There is a really good workshop on Web mining video from Strata Santa Clara 2012, it highlights two dozens more common problems you face when designing Web crawlers: http://my.safaribooksonline.com/video/-/9781449336172 Highly recommended for people who are interested or work in this area (I think it can be purchased separately, O'Reilly Safari subscribers have access to the entire video set) I am by no means an expert (or even very experienced) in this area but Itsy has features that solve several very common problems out of the box in 0.1.0. Good job. MK -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ANN Welle 1.0 final
On May 23, 2012 11:35 AM, Peter Taoussanis ptaoussa...@gmail.com wrote: Looks great - well done! I passed over Riak a while back because of the lack of a good client- might be time to take a real look at it again. Love the ClojureWerkz pages btw. +1 - Peter Taoussanis -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: apply a function to every item in a sequence without realizing the sequence
Map IS lazy but it still returns the entire realized sequence, as expected. On May 2, 2012 8:31 AM, Sean Neilan s...@seanneilan.com wrote: I don't think so. On Wed, May 2, 2012 at 1:22 AM, Stuart Campbell stu...@harto.org wrote: On 2 May 2012 14:44, Baishampayan Ghose b.gh...@gmail.com wrote: You can't use `map` because `map` will return a sequence of the same size and that can blow your heap. Isn't `map` lazy too? Regards, Stuart -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: apply a function to every item in a sequence without realizing the sequence
You can also use doseq afaik, altough every element must realized at least once, you just have to make sure you don't hold onto the head of the sequence as you proceed. It is not immediately apparent to me why that doesn't happen with your loop-recur solution On May 2, 2012 6:27 AM, Sean Neilan s...@seanneilan.com wrote: I forgot to mention: (nth (file-seq (java.io.File. /DirectoryWithMillionsOfFiles/)) 20) works great because nth doesn't realize the sequence! For now, I'll look at nth's source code to see how it iterates. On Tue, May 1, 2012 at 11:24 PM, Sean Neilan sneil...@gmail.com wrote: Hi, I'm sure this has been discussed to death but I can't figure it out. I've got a file-seq sequence from (file-seq (java.io.File. /DirectoryWithMillionsOfFiles/)) that will cause an out of memory error if realized. I want to call a function such as println on every element in the sequence. I understand that naming the sequence will cause it to be realized. The problems 1. I can't use map as in (map println (file-seq (java.io.File. /DirectoryWithMillionsOfFiles))). Map realizes the sequence. 2. I can't use for as in (for [x (files)] (println x)). For realizes the sequence. 3. I can't use dorun because even though dorun doesn't realize the sequence, it can't execute a function on every element. 4. I can't use loop recur because it also realizes the sequence: (loop [a (files) b (first a)] (println b) (recur (rest a) (first a))) 5. I can't use refs because even though they provide state, they can't save the state of the sequence without realizing the sequence. My question *Should I try the new stream library?* * * Thank you for your time. -Sean -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: apply a function to every item in a sequence without realizing the sequence
Wow lot of active people in the early morning, all typing faster than me on my phone... :-) On May 2, 2012 6:36 AM, László Török ltoro...@gmail.com wrote: You can also use doseq afaik, altough every element must realized at least once, you just have to make sure you don't hold onto the head of the sequence as you proceed. It is not immediately apparent to me why that doesn't happen with your loop-recur solution On May 2, 2012 6:27 AM, Sean Neilan s...@seanneilan.com wrote: I forgot to mention: (nth (file-seq (java.io.File. /DirectoryWithMillionsOfFiles/)) 20) works great because nth doesn't realize the sequence! For now, I'll look at nth's source code to see how it iterates. On Tue, May 1, 2012 at 11:24 PM, Sean Neilan sneil...@gmail.com wrote: Hi, I'm sure this has been discussed to death but I can't figure it out. I've got a file-seq sequence from (file-seq (java.io.File. /DirectoryWithMillionsOfFiles/)) that will cause an out of memory error if realized. I want to call a function such as println on every element in the sequence. I understand that naming the sequence will cause it to be realized. The problems 1. I can't use map as in (map println (file-seq (java.io.File. /DirectoryWithMillionsOfFiles))). Map realizes the sequence. 2. I can't use for as in (for [x (files)] (println x)). For realizes the sequence. 3. I can't use dorun because even though dorun doesn't realize the sequence, it can't execute a function on every element. 4. I can't use loop recur because it also realizes the sequence: (loop [a (files) b (first a)] (println b) (recur (rest a) (first a))) 5. I can't use refs because even though they provide state, they can't save the state of the sequence without realizing the sequence. My question *Should I try the new stream library?* * * Thank you for your time. -Sean -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Loading a huge graph
Thanks,
having a C++ background, there is definitely a lot to learn about the JVM.
I'm wrote a script in Python that ran in about 10-12s and used up to 320MB
of memory.
I'm running a clojure repl from Emacs via jack-in.
What's the best way to adjust the heap size? swank-clojure and clojure-mode
don't say.
If I spin up the repl via lein swank, I can use the LEIN_JVM_OPTS, however
it affects only one of the JVMs started by lein swank, the one with jline.
Any advice? :)
2012/4/13 Alex Robbins alexander.j.robb...@gmail.com
Yeah, sounds like it could definitely be a memory issue. This is one
part where the JVM works a lot differently than I expected coming from
a python background.
Everybody may already know this, but the JVM only takes 64mb for the
heap by default. You'll get an out of memory error if your program
uses more than that. In contrast, python just takes all the memory it
needs. As your program gets closer to the JVM memory limit it'll spend
more and more time doing garbage collection, with less and less real
work getting done. You can pass an -Xmx flag to give java access to
more memory, which many (most?) programs do.
On Thu, Apr 12, 2012 at 5:22 PM, David Nolen dnolen.li...@gmail.com
wrote:
How much memory do Python Go consume when you do this? Are you giving
the
JVM enough memory?
On Thu, Apr 12, 2012 at 6:17 PM, László Török ltoro...@gmail.com
wrote:
Hi,
I'm trying figure out how to load a huge file that contains some 800k
pair
of integers (two integers per line) which represent edges of a directed
graph.
So if the ith line has x and y, it means that there is an edge between x
and y vertex in the graph.
The goal is to load it in an array of arrays representation, where the
kth
array contains all the nodes, where there is a directed edge from the
kth
node to those nodes.
I've attempted multiple variants of with-open reader and line-seq etc.
but
almost always ended up with OutMemoryException or sg VERY slow.
My latest attempt that also does not work on the large input:
(defn load-graph [input-f]
(with-open [rdr (io/reader input-f)]
(- (line-seq rdr)
(map (fn [row]
(let [[v1str v2str] (str/split row #\s)]
[ (Integer/parseInt v1str) (Integer/parseInt v2str)
]))
)
(reduce (fn [G [v1 v2]]
(if-let [vs (get G v1)]
(update-in G [v1] #(conj % v2))
(assoc G v1 [v2]))) { }
I'm getting a bit frustrated as there are Python, Go implementations
that
load the graph in less the 5 seconds.
What am I doing wrong?
Thanks
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
Re: Loading a huge graph
Excellent! Thank you, that did the trick!
2012/4/13 bOR_ boris.sch...@gmail.com
I have this option in my project.clj file, which does the trick if you are
developing from emacs+swank+clojure-jack-in, and using large networks
:jvm-opts [-Xmx4000m]
And yes, one of the things to do when working with the jvm is learning how
to use jconsole or visualvm to see why your program is slow :-), and know
how to adapt the jvm options. If I remember correctly, java 1.7 has an
option for a more flexible heap size, which might be a nice default.
On Friday, 13 April 2012 10:32:24 UTC+2, Las wrote:
Thanks,
having a C++ background, there is definitely a lot to learn about the JVM.
I'm wrote a script in Python that ran in about 10-12s and used up to
320MB of memory.
I'm running a clojure repl from Emacs via jack-in.
What's the best way to adjust the heap size? swank-clojure and
clojure-mode don't say.
If I spin up the repl via lein swank, I can use the LEIN_JVM_OPTS,
however it affects only one of the JVMs started by lein swank, the one with
jline.
Any advice? :)
2012/4/13 Alex Robbins alexander.j.robb...@gmail.com**
Yeah, sounds like it could definitely be a memory issue. This is one
part where the JVM works a lot differently than I expected coming from
a python background.
Everybody may already know this, but the JVM only takes 64mb for the
heap by default. You'll get an out of memory error if your program
uses more than that. In contrast, python just takes all the memory it
needs. As your program gets closer to the JVM memory limit it'll spend
more and more time doing garbage collection, with less and less real
work getting done. You can pass an -Xmx flag to give java access to
more memory, which many (most?) programs do.
On Thu, Apr 12, 2012 at 5:22 PM, David Nolen dnolen.li...@gmail.com
wrote:
How much memory do Python Go consume when you do this? Are you
giving the
JVM enough memory?
On Thu, Apr 12, 2012 at 6:17 PM, László Török ltoro...@gmail.com
wrote:
Hi,
I'm trying figure out how to load a huge file that contains some 800k
pair
of integers (two integers per line) which represent edges of a
directed
graph.
So if the ith line has x and y, it means that there is an edge
between x
and y vertex in the graph.
The goal is to load it in an array of arrays representation, where
the kth
array contains all the nodes, where there is a directed edge from the
kth
node to those nodes.
I've attempted multiple variants of with-open reader and line-seq
etc. but
almost always ended up with OutMemoryException or sg VERY slow.
My latest attempt that also does not work on the large input:
(defn load-graph [input-f]
(with-open [rdr (io/reader input-f)]
(- (line-seq rdr)
(map (fn [row]
(let [[v1str v2str] (str/split row #\s)]
[ (Integer/parseInt v1str) (Integer/parseInt
v2str) ]))
)
(reduce (fn [G [v1 v2]]
(if-let [vs (get G v1)]
(update-in G [v1] #(conj % v2))
(assoc G v1 [v2]))) { }
I'm getting a bit frustrated as there are Python, Go implementations
that
load the graph in less the 5 seconds.
What am I doing wrong?
Thanks
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient
with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscribe@**googlegroups.comclojure%2bunsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/**group/clojure?hl=enhttp://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient
with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscribe@**googlegroups.comclojure%2bunsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/**group/clojure?hl=enhttp://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscribe@**googlegroups.comclojure%2bunsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/**group/clojure?hl=enhttp://groups.google.com/group/clojure?hl=en
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure
Re: Loading a huge graph
Thanks, I know about transients, but I'm already using mutable arrays for
speed :-)
On Apr 13, 2012 8:01 PM, Robert Marianski r...@marianski.com wrote:
If the jvm does have enough memory, you may want to try building up the
map using a transient.
And not sure if this is faster, (maybe it's slower), but you can spell the
function you pass to reduce more succinctly:
(fn [G [v1 v2]] (update-in G [v1] (fnil conj []) v2))
Robert
On Thu, Apr 12, 2012 at 06:22:34PM -0400, David Nolen wrote:
How much memory do Python Go consume when you do this? Are you giving
the
JVM enough memory?
On Thu, Apr 12, 2012 at 6:17 PM, László Török ltoro...@gmail.com
wrote:
Hi,
I'm trying figure out how to load a huge file that contains some 800k
pair
of integers (two integers per line) which represent edges of a
directed
graph.
So if the ith line has x and y, it means that there is an edge
between x
and y vertex in the graph.
The goal is to load it in an array of arrays representation, where
the kth
array contains all the nodes, where there is a directed edge from the
kth
node to those nodes.
I've attempted multiple variants of with-open reader and line-seq
etc. but
almost always ended up with OutMemoryException or sg VERY slow.
My latest attempt that also does not work on the large input:
(defn load-graph [input-f]
(with-open [rdr (io/reader input-f)]
(- (line-seq rdr)
(map (fn [row]
(let [[v1str v2str] (str/split row #\s)]
[ (Integer/parseInt v1str) (Integer/parseInt
v2str) ]))
)
(reduce (fn [G [v1 v2]]
(if-let [vs (get G v1)]
(update-in G [v1] #(conj % v2))
(assoc G v1 [v2]))) { }
I'm getting a bit frustrated as there are Python, Go implementations
that
load the graph in less the 5 seconds.
What am I doing wrong?
Thanks
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient
with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
Loading a huge graph
Hi,
I'm trying figure out how to load a huge file that contains some 800k pair
of integers (two integers per line) which represent edges of a directed
graph.
So if the ith line has x and y, it means that there is an edge between x
and y vertex in the graph.
The goal is to load it in an array of arrays representation, where the kth
array contains all the nodes, where there is a directed edge from the kth
node to those nodes.
I've attempted multiple variants of with-open reader and line-seq etc. but
almost always ended up with OutMemoryException or sg VERY slow.
My latest attempt that also does not work on the large input:
(defn load-graph [input-f]
(with-open [rdr (io/reader input-f)]
(- (line-seq rdr)
(map (fn [row]
(let [[v1str v2str] (str/split row #\s)]
[ (Integer/parseInt v1str) (Integer/parseInt v2str) ]))
)
(reduce (fn [G [v1 v2]]
(if-let [vs (get G v1)]
(update-in G [v1] #(conj % v2))
(assoc G v1 [v2]))) { }
I'm getting a bit frustrated as there are Python, Go implementations that
load the graph in less the 5 seconds.
What am I doing wrong?
Thanks
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
Re: ClojureScript gets PersistentVectors
It has been a great learning experience on both Clojure internals and the Clojurescript side. One thing to note, that the handwritten JS (which also a straight port of the java version and not optimized by the closure compiler) still outperforms the Clojurescript version consistently by at least a factor of 3-3.5x on V8 and slightly on other engines. It would be interesting to see why. I suspect that the code generated by cljsc can be improved a lot and currently it does not always lend itself to agressive inlining. (pure speculation, yet to be confirmed) On the other hand, I understand that there are certain conventions that have to be observed for CLJS abstractions like protocols etc. to work. I'm interested to hear opinions and directions on where to go from hear: chunked sequences and transient will certainly deliver a performance boost. How about pods? Is there a design written up out there? Is there a clojure experimental implementation on separate branch? Las 2012/3/29 Evan Mezeske emeze...@gmail.com This is excellent. Big thanks to Laszlo! I've been working on a Raphaël-based interactive GUI app in ClojureScript that maintains a big vector of elements, and had just recently started to run into what seemed to be the performance limits of the copy-on-write approach. I'm very optimistic that this feature will allow me to keep using vectors instead of dropping down to mutable host arrays, which is a big win. I can't wait to try this. -Evan On Thursday, March 29, 2012 2:31:10 PM UTC-7, David Nolen wrote: Thanks to Laszlo Török, ClojureScript now has PersistentVectors, https://github.com/clojure/**clojurescript/commit/** e615f4cd326e7c608050272c64c4df**aff9a34689https://github.com/clojure/clojurescript/commit/e615f4cd326e7c608050272c64c4dfaff9a34689 . They are based on the Java implementations found in Clojure. I'm happy to say they thoroughly trounce the old copy-on-write Vectors: http://jsperf.com/**persistentvector-norecur-js/11http://jsperf.com/persistentvector-norecur-js/11 Note how much room for improvement we have on JS engines like V8 :) David -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Alternate set literal syntax?
The only redundant syntax in that list #^{} vs. ^{}. A wart in the
language, but a clear improvement nonetheless. Thankfully Clojure is very
conservative with breaking changes.
All others serve a purpose, no matter how minor.
How is this proposal (on *any* alternative set syntax) different to
proposing :::user to be synonymous to ::user, wrt redundant syntax?
Alex hit the nail on the head with the 3rd post of this thread.
+100 and I think (and others may agree) that should conclude this thread
Thanks,
Ambrose
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
the role of #_ reader macro in cljs.core
Hi, I'm trying to wrap my head around the role of the #_ macro and how it's used in core.cljs. Can some explain, why it is used to prefix (throw.. ) in (deftype EmptyList [meta] ... ... IStack (-peek [coll] nil) (-pop [coll] #_(throw (js/Error. Can't pop empty list))) or in (deftype Vector [meta array] ... ... IIndexed (-nth [coll n] (if (and (= 0 n) ( n (.-length array))) (aget array n) #_(throw (js/Error. (str No item n in vector of length (.-length array)) but not in (deftype Vector [meta array] ... ... (-pop [coll] (if ( (.-length array) 0) (let [new-array (aclone array)] (. new-array (pop)) (Vector. meta new-array)) (throw (js/Error. Can't pop empty vector there are other examples at ln 68, ln 127, ln 146 for other forms. Thx Las -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: the role of #_ reader macro in cljs.core
Thx,
then why is it used at
(deftype Vector [... ]
...
...
IIndexed
(-nth [coll n]
(if (and (= 0 n) ( n (.-length array)))
(aget array n)
#_(throw (js/Error. (str No item n in vector of length
(.-length array))
where I would in fact expect an exception (to get the same behavior as in
clojure)?
Las
Baishampayan Ghose 2012. március 26., hétfő napon a következőt írta:
The #_ reader macro simply comments out the form, so it's a no op.
Sent from phone, please excuse brevity.
On Mar 26, 2012 10:23 AM, László Török
ltoro...@gmail.comjavascript:_e({}, 'cvml', 'ltoro...@gmail.com');
wrote:
Hi,
I'm trying to wrap my head around the role of the #_ macro and how it's
used in core.cljs.
Can some explain, why it is used to prefix (throw.. ) in
(deftype EmptyList [meta]
...
...
IStack
(-peek
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to
clojure@googlegroups.comjavascript:_e({}, 'cvml',
'clojure@googlegroups.com');
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com javascript:_e({}, 'cvml',
'clojure%2bunsubscr...@googlegroups.com');
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to
clojure@googlegroups.comjavascript:_e({}, 'cvml',
'clojure@googlegroups.com');
Note that posts from new members are moderated - please be patient with
your first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com javascript:_e({}, 'cvml',
'clojure%2bunsubscr...@googlegroups.com');
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--
László Török
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
Re: New(er) Clojure cheatsheet hot off the presses
Hi, I think Twitter's Bootstrap toolkit is sg to consider. http://twitter.github.com/bootstrap/javascript.html#tooltips also http://twitter.github.com/bootstrap/javascript.html#popovers I already used them, they're easy and fun to implement. :) I think if the content already appers somewhere on the page, you can simply reference it using it's element id. hope it helps Las 2012/3/23 Andy Fingerhut andy.finger...@gmail.com I definitely like the tooltip idea. I like it so much that I've already played with it a bit, looking at several web pages with instructions for how to do it, but my knowledge of good ways to do this is zero except for the results of those Google searches. Has anyone implemented tooltips on a web page? My preferences for a solution are: (a) No interaction with the web server required to get the tooltip contents, i.e. as far as the server is concerned, it is a static file web page. Hopefully this means it has a very fast reaction time when the user interacts with it to show or take down the tooltips. (b) Tooltips always appear within the browser window, never sometimes partially in it and partially outside it. (c) Tooltips appear while your mouse is hovered over a link, and disappear as soon as the mouse moves away from that link. (d) works with most current web browsers (e.g. latest Firefox, Chrome, Safari, IE). (e) No $$ or legal encumbrances to use it. Thanks, Andy On Mar 23, 2012, at 3:45 AM, Rostislav Svoboda wrote: Hi Andy If anyone has suggestions for what you would like to see added to the cheatsheet It'd be great to have a tooltip appearing at every function I go over with my mouse. Typically I click on a function just to realize Oh, this is not the one I need so I have to go back. And this back forth repeats several times. IMO tooltips would make such a search much faster and smoother. (Thx in advance) Bost -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Clojure-mode + aquamacs + paredit and character literals
I'm on OS X 10.6.8 with latest stable Aquamacs and https://github.com/overtone/live-coding-emacs. Worked out of the box and is the most amazing visual experience and programmer productivity I had with Emacs so far. Las 2012/3/22 Moritz Ulrich ulrich.mor...@googlemail.com Do you really need Aquamacs? My experience is that it causes more trouble than it's worth. I'd recommend using vanilla Emacs from [1] or building from source with the --cocoa switch. Vanilla Emacs on OS X got so good you don't really need Aquamacs anymore. Looking at the Emacs Starter Kit from Phil Hagelberg might be helpful too. [1]: http://emacsformacosx.com/ Cheers, Moritz Ulrich On Wed, Mar 21, 2012 at 21:06, JuanManuel Gimeno Illa jmgim...@gmail.com wrote: I'm having problems typing character literals in aquamacs when clojure-mode and paredit are active. When I type the character \, emacs complains with: after 0 kwd macro iterations: Wrong type argument: characterp, -1 Any idea of what is going on? Thanks, Juan Manuel -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- Moritz Ulrich -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: into applied to transient vectors undocumented?
Hi, I'm not sure why I said it can be. My original post was going to be about why there isn't a into! (Thanks Alan for the hint!) I think the (if (instance? clojure.lang.IEditableCollection to) line made me draw false conclusions. It was a bit late, apologies for the noise and thx! 2012/3/20 Andy Fingerhut andy.finger...@gmail.com Sorry, I said something incorrect. into cannot take transients as the first arg. It calls transient internally on the first arg for speed. This does not modify the value you passed in at all -- it creates a new transient data structure from what you pass in. If you try calling transient on a data structure that is already a transient, you get an error. Thus this gives an error: user= (def x [1 2 3]) #'user/x user= (def tx (transient x)) #'user/tx user= (into tx [5 6 7]) ClassCastException clojure.lang.PersistentVector$TransientVector cannot be cast to clojure.lang.IPersistentCollection clojure.core/conj (core.clj:83) user= (into x [5 6 7]) [1 2 3 5 6 7] Andy On Mar 20, 2012, at 11:30 AM, Andy Fingerhut wrote: func! (bang) is a naming convention from the programming language Scheme that Clojure often uses. In general it means that the function mutates data, i.e. it is not a pure function. Clojure does not have a ! after all of its core functions that do this, but it does after some. In particular, the functions that operate on transients like conj! assoc! persistent! etc. mutate their arguments. Many (maybe most) regular collection functions do not take transients. As I said, I think it is an accident, not by design, that 'into' can take a transient as an argument. Originally it only took persistent collections as arguments (perhaps also seqs, but those are immutable, too). Andy On Mar 20, 2012, at 11:17 AM, László Török wrote: Ok, so the pattern is: func! (bang) takes a transient and returns a transient regular collection functions MAY take a transient but ALWAYS return a persistent collection, right? :) thx Las 2012/3/20 Andy Fingerhut andy.finger...@gmail.com into uses transient and persistent! for speed. The fact that into can take a transient as input is an accidental consequence of that, I think. Before into was changed to use transients internally, it could only take persistent data structures as input, and return a persistent data structure. Andy On Mar 20, 2012, at 10:32 AM, László Török wrote: Hi, While implementing qsort with clojure for fun, I thought about using transient vectors to speed up sorting vs the naive functional implementation. I need an *into!* version of *into *when joining two sorted subarrays and I was wondering why there isn't one. It seems that (source into) does in fact support a transient collection as the first argument, however it calls persistent! on the result. What was the rationale behind the decision? (Note: I'm not questioning it, just interested.) Is there a particular reason why this feature remains undocumented? -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient
into applied to transient vectors undocumented?
Hi, While implementing qsort with clojure for fun, I thought about using transient vectors to speed up sorting vs the naive functional implementation. I need an *into!* version of *into *when joining two sorted subarrays and I was wondering why there isn't one. It seems that (source into) does in fact support a transient collection as the first argument, however it calls persistent! on the result. What was the rationale behind the decision? (Note: I'm not questioning it, just interested.) Is there a particular reason why this feature remains undocumented? -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: into applied to transient vectors undocumented?
Ok, so the pattern is: func! (bang) takes a transient and returns a transient regular collection functions MAY take a transient but ALWAYS return a persistent collection, right? :) thx Las 2012/3/20 Andy Fingerhut andy.finger...@gmail.com into uses transient and persistent! for speed. The fact that into can take a transient as input is an accidental consequence of that, I think. Before into was changed to use transients internally, it could only take persistent data structures as input, and return a persistent data structure. Andy On Mar 20, 2012, at 10:32 AM, László Török wrote: Hi, While implementing qsort with clojure for fun, I thought about using transient vectors to speed up sorting vs the naive functional implementation. I need an *into!* version of *into *when joining two sorted subarrays and I was wondering why there isn't one. It seems that (source into) does in fact support a transient collection as the first argument, however it calls persistent! on the result. What was the rationale behind the decision? (Note: I'm not questioning it, just interested.) Is there a particular reason why this feature remains undocumented? -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
clojurewest talk videos?
Hi, will the videos of the talks be available for those who did not make it to the conference? thx -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Clojurescript: persistent data structures?
Hi, I may not be fully up to speed with the latest developments re. Clojurescript, so please bear with me. I was wondering, what are the impediments of implementing persistent data structures in Clojurescript similar to those Clojure already has? (and getting rid of the current copy-on-write whenever I create a new value out of an existing one) Thanks! -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Clojurescript: persistent data structures?
David, Was it a straight port of the jvm implementation? Is there any gist, blog post of your findings? Thx L sent from my mobile device On Mar 5, 2012 5:05 PM, David Nolen dnolen.li...@gmail.com wrote: On Mon, Mar 5, 2012 at 10:55 AM, László Török ltoro...@gmail.com wrote: Hi, I may not be fully up to speed with the latest developments re. Clojurescript, so please bear with me. I was wondering, what are the impediments of implementing persistent data structures in Clojurescript similar to those Clojure already has? (and getting rid of the current copy-on-write whenever I create a new value out of an existing one) Thanks! -- László Török We should definitely implement persistent data structures for ClojureScript. I've done some initial tests and the modern JS engines seem to handle them quite well. I think their performance will only continue ot improve. If you've sent in your CA feel free to start on them and note your progress on via tickets on JIRA :) David -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
