Re: clojureans in Boston and NYC
The Clojure NYC meetup gets together about once a month: http://www.meetup.com/Clojure-NYC/ On Mon, Mar 11, 2013 at 10:06 AM, Giacomo Cosenza mimmo.cose...@gmail.comwrote: Hello everyone, on march 29th I'm moving from Milan (Italy) to Boston and I'm going to stay there for a month. During that month I'm pretty sure I'm going to visit NYC for few days. It would be an honor for me to have the opportunity to meet any clojurean living in Boston and NYC. There few italian clojureans and most of them live abroad and the only italian clojureans that I personally know are the ones working in my small sw company. If someone is interested to meet me, just let me know. I'll appreciate a lot. Thanks so much for your attention. Mimmo -- -- 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: A forum for Clojure...?
It's a little different for language communities. More experienced developers will tend to use mailing lists or IRC. Also, I think stackoverflow is quickly become the go-to place for beginners to a language. On Tue, Mar 5, 2013 at 2:14 PM, BJG145 benmagicf...@gmail.com wrote: I don't see it as an experience thing. There are a lot of highly skilled professionals on the Edugeek and Sound On Sound forums... -- -- 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: A forum for Clojure...?
True, but the gaming community itself is heavily forum-based, so it makes sense that gaming frameworks and libraries will also have active forums. On Tue, Mar 5, 2013 at 2:21 PM, BJG145 benmagicf...@gmail.com wrote: Hmm, I'm Googling to find a good example. Haskell forums...nope, rubbish. Python forums...nope. Maybe it's not a programmer thing. The gaming frameworks have nice forums - Unity for example. They're not all newbies. http://forum.unity3d.com/forum.php -- -- 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: [GSoC Idea] cljs layer/dsl over express js
But compojure isn't in cljs, so you have to use the jvm. A wrapper around express would mean you could run it on node. On Thu, Feb 14, 2013 at 5:35 PM, Josh Kamau joshnet2...@gmail.com wrote: Clojure has compojure ... which is a sinatra like web framework and you can create a new project usinglein new compojure and start creating your request handler functions from there ... Just like in express. If you want a jade equivalent... you can use hiccup . Josh. On Fri, Feb 15, 2013 at 12:30 AM, Omer Iqbal momeriqb...@gmail.comwrote: Just throwing ideas. Feel free to shoot it down if you folks think its not worth it :). Also, I'm a student, and would actually be participating in GSOC, so this is more of a shoutout for possible mentors, if you guys think the project makes sense. The Problem: 1. cljs doesn't yet have a library/framework of its own to facilitate serverside web dev over nodejs. (I might be wrong here, and please correct me if I am). 2. Expressjs(http://expressjs.com/) is an awesome sinatra inspired, very popular, web app framework for node. 3. Using express directly using js interop calls can get ugly QED: It would make sense to have a cljs layer over express The Solution: I haven't ironed this out fully, but it would probably be a good idea to produce a compojure like framework, so its easier to adopt. Under the hood you'll obviously have either interop calls, or cljs implementations for the same functionality. Would love feedback on the idea! And whether can haz mentor? Cheers, Omer (@olenhad) -- -- 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 - Python Style suggestion
Sergey's example code seems to have arguments to a function happen on the same line while new function calls appear on new lines. So: filter smaller xs ...would be the equivalent of filter(smaller(xs)). Anyway, I agree that parens don't add any more clutter. Having to *always* have all the arguments on the same line could lead to needlessly long lines. I also don't see how syntax like this would make the transition to full Clojure with all the parentheses any easier. Beginners would still shy away from all the parens and never go beyond playing around with the language. Would Python ever have a indent-lite version that allowed beginners to use braces instead of indentation? Of course not, because learning to read and write code with significant whitespace is an important part of python. If a beginner doesn't learn those things from the start they'll only handicap themselves more later on. And the same goes with Clojure, it's important to learn those parentheses from the beginning so you can lose your fear of them earlier on. Tamreen On Mon, Feb 4, 2013 at 3:06 PM, Timothy Baldridge tbaldri...@gmail.comwrote: Parens actually don't complect, they have a very very clear meaning. They organize functions and arguments. Let's take one line from your example: filter smaller xs Sois that the python equivalent to which of these? filter(smaller(xs)) filter(smaller, xs) filter(smaller(), xs()) filter(smaller(xs())) I would also assert that Python complects formatting and semantic meaning of the code. I'm quite proficient at Python and even I hate that fact. Timothy On Mon, Feb 4, 2013 at 1:01 PM, Sergey Didenko sergey.dide...@gmail.comwrote: Hi, For us as Clojure community it is easy to see how Clojure benefits from being a Lisp. Homoiconity, extreme conciseness, esoteric look and feel, etc. However it is hard to see from the inside how Clojure as ecosystem (probably) suffer from being a Lisp. Please don't throw rotten eggs at me, I mean only the part of Lisp that is ... parentheses. I remember a number of people that mention parentheses as obstacles to the wider Clojure adoption, in the Clojure space - in the Clojure related discussions, even on this mailing list IIRC. But the number of people thinking this way outside the Clojure groups is even bigger! We probably don't notice it because got immune to this famous argument it has too many parentheses early when diving into Clojure. I suggest there are a big number of people that could gain interest in clojure if we provide them with parentheses-lite Clojure syntax. For example we can steal Python way of intending blocks. For example the following quicksort implementation (defn qsort [[pivot xs]] (when pivot (let [smaller #( % pivot)] (lazy-cat (qsort (filter smaller xs)) [pivot] (qsort (remove smaller xs)) could be written as (set! python-style-op-op true) defn qsort [[pivot xs]] when pivot let [smaller #( % pivot)] lazy-cat qsort filter smaller xs [pivot] qsort remove smaller xs What do you think? Isn't is less complex? P.S. Ok, I must confess, the mention of the C-Word in the last sentence was just a desperate way to get Rich's attention. P.P.S. Actually I would also love to see Clojure community making video clip Clojure - Python Style as a remix for G... Style, but this idea is probably way ahead of its time. Regards, Sergey. -- -- 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. -- “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
Re: Clojure - Python Style suggestion
Again, I don't think it will help attract new users, at least not the way we want. Parentheses are an important part of the language and it's not something a beginner can just pick up later. If they're scared of parentheses now, they'll be scared when they try to jump from this paren-lite syntax to full Clojure. And it's for the same reasons that Python doesn't have a 'simpler' version without significant whitespace. On Mon, Feb 4, 2013 at 3:30 PM, Sergey Didenko sergey.dide...@gmail.comwrote: My point is to introduce a second-class syntax to attract orthodox users. Definitely not migrating. The rules of transformation can be so simple that any useful library written by Clojure Python style adopters could be translated to the canonical style automatically with a few line program. I can't see the community migrating to such a syntax, even if somebody -- -- 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 any reason to make different file extension (clj and cljs) for Clojure and ClojureScript?
While Clojurescript aims to be close to Clojure, they're still different languages, with entirely different compilers. Much of the Clojure toolchain uses the extension to figure out how to compile a given file. Otherwise, as far as I know there's no reasonable way to tell apart Clojure code from Clojurescript code. On Fri, Oct 19, 2012 at 9:24 AM, Mamun mamuni...@gmail.com wrote: Hi All, I've just started to learn Clojure and interested to see more ClojureScript. It is really nice stuff- data structure, function and code sharing. But Is there any reason to make different file extension (*.clj and *.cljs) for Clojure and ClojureScript? Regards, Mamun -- 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: *foo*
Asterisks are valid characters for names, just like alphanumeric characters, dashes, question marks, etc. According to Practical Clojure (http://books.google.com/books?id=4QacPa1vwMUCpg=PA24lpg=PA24dq=clojure+star+charactersource=blots=2yDJkpf6nisig=2bV8rr5qpn-ev5Y50MW9XpE5fKAhl=ensa=Xei=w2V0UM3cFq6H0QGx6YHwBgved=0CEsQ6AEwBQ#v=onepageq=clojure%20star%20characterf=false): If a symbol is a constant or a global program setting, it often begins and ends with the star character (*). On Tue, Oct 9, 2012 at 1:55 PM, Grant Rettke gret...@acm.org wrote: On Tue, Oct 9, 2012 at 12:54 PM, Brian Craft craft.br...@gmail.com wrote: I know I saw an explanation of this on some obscure page, but I can't find it now. What's up with the symbols with stars at front end? http://mumble.net/~campbell/scheme/style.txt -- 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: strange pattern to implement comp, juxt and partial
My guess is that it's useful in the core functions which are more heavily used. Otherwise you're getting into premature optimization if you use it in any of your own functions without profiling it first. On Tue, Oct 2, 2012 at 4:18 PM, Balint Erdi balint.e...@gmail.com wrote: Makes sense but why don't we have it in all possible places then? Thank you. On Tuesday, October 2, 2012 9:55:42 PM UTC+2, Herwig Hochleitner wrote: That is because dispatch on argument count is fast, while apply is slow. Especially so since it might have to create an intermediate seq. It's a performance optimization. kind regards -- 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: how do we go about promoting new clojure libraries?
I think the consensus is that an electronic way to send the CA is just the right amount of effort required. You stil have to take the time to fill out a legally binding agreement but it also doesn't rule out those for whom snail mail is just too unpractical because they live outside the US or Europe, for example On Wed, Sep 26, 2012 at 3:49 PM, Aaron Cohen aa...@assonance.org wrote: On Wed, Sep 26, 2012 at 3:40 PM, Michael Klishin michael.s.klis...@gmail.com wrote: 2012/9/26 Stuart Sierra the.stuart.sie...@gmail.com http://dev.clojure.org/display/community/Libraries is unorganized and out of date - volunteers welcome. Stuart, No, that's not how it works. You *first* make contribution process easy, *then* ask people to volunteer. Not the other way around, no. -- No, only if you want an unfiltered stream of absolutely anyone to contribute is that true. If you're ok with restricting volunteers to the subset who are actually willing show a little effort, making the process slightly cumbersome might even be a net benefit. --Aaron -- 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: Why IPersistentList doesn't extend ISeq?
First, IPersistentSeq is the interface, PersistentSeq is the actual class. If you look at it a little more closely, PersistentList extends ASeq, which is an abstract class. ASeq implements the ISeq interface. So PersistentList does implement ISeq through its parent class. https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/PersistentList.java#L16 - PersistentList extending ASeq https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/ASeq.java#L16 - ASeq implementing ISeq On Fri, Aug 31, 2012 at 12:58 PM, Andrei Zhlobich a.zhlob...@gmail.comwrote: Why IPersistentList doesn't extend ISeq? Clojure docs say: Lists are collections. They implement the ISeq interface directly (except for the empty list, which is not a valid seq) At this moment EmptyList implements ISeq, but PersistentList doesn't. It seems very strange for me. Also PersistentQueue implements IPersistentList, but semantically it is not a list. I think we can do 2 changes in hierarchy: 1) extend IPersistentList from ISeq; 2) extend PersistentQueue directly from IPersistentStack instead of IPersistentList. Is it possible? -- 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: Why IPersistentList doesn't extend ISeq?
Sorry, I meant IPersistentList and PersistentList in the first sentence of my previous email. On Sun, Sep 2, 2012 at 11:00 PM, Tamreen Khan histor...@gmail.com wrote: First, IPersistentSeq is the interface, PersistentSeq is the actual class. If you look at it a little more closely, PersistentList extends ASeq, which is an abstract class. ASeq implements the ISeq interface. So PersistentList does implement ISeq through its parent class. https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/PersistentList.java#L16 - PersistentList extending ASeq https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/ASeq.java#L16 - ASeq implementing ISeq On Fri, Aug 31, 2012 at 12:58 PM, Andrei Zhlobich a.zhlob...@gmail.comwrote: Why IPersistentList doesn't extend ISeq? Clojure docs say: Lists are collections. They implement the ISeq interface directly (except for the empty list, which is not a valid seq) At this moment EmptyList implements ISeq, but PersistentList doesn't. It seems very strange for me. Also PersistentQueue implements IPersistentList, but semantically it is not a list. I think we can do 2 changes in hierarchy: 1) extend IPersistentList from ISeq; 2) extend PersistentQueue directly from IPersistentStack instead of IPersistentList. Is it possible? -- 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: Clojure Practice?
http://www.4clojure.com/ Pretty much exactly what you need. It has a series of problems from very easy to more advanced ones that cover a wide range of what programming in clojure involves, and you can type in and run the code right on the site. On Sat, Sep 1, 2012 at 4:56 PM, JvJ kfjwhee...@gmail.com wrote: I've been interested in Clojure for some time, but I haven't really needed to code much recently (in any language). Does anyone have any ideas on good ways to practice Clojure (like websites with practice problems or whatever)? -- 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: anonymous functions with names
The name given an anonymous function can only be used within the scope of that function. This will work: (fn my-func1 [x] (my-func x)) ; Leads to infinite recursion, of course This won't work because my-func1 is called outside of the function's lexical scope: (fn my-func1 [x] x) (my-func1 100) However, functions defined with defn use a global var, so they're not limited to any particular lexical scope. On Fri, Aug 31, 2012 at 11:52 AM, Erlis Vidal er...@erlisvidal.com wrote: Hi guys, I've been reading but I'm still confused about the difference between an anonymous function with name vs a defn function (fn my-func1[x] x) (defn my-func2[x] x) Thanks, Erlis -- 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: Pattern of Succinctness
Is the last one considered generally more readable? I think the following
is clearer while still not having as much noise as the first filter example:
(filter (partial not nil?) coll)
On Sun, Aug 12, 2012 at 1:35 PM, Takahiro Hozumi fat...@googlemail.comwrote:
Hi,
I would like to know common technics that make code succinct.
For example:
(or (:b {:a 1}) 0)
(:b {:a 1} 0)
(if-not x 1 2)
(if x 2 1)
(filter #(not (nil? %)) coll)
(filter identity coll) ;; nearly equal
Please let me know any tips you found.
Cheers,
Takahiro.
--
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: Why Clojure map literal creates an instance of array map?
It's not dependent on whether it's a literal but on the size of the map, 8
key-value pairs is the threshold.
This results in a PersistentHashMap
(class {1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9}) =
clojure.lang.PersistentHashMap
This gets you a PersistentArrayMap
(class {1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8}) = clojure.lang.PersistentHashMap
You can see where this happens in the source here:
https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/PersistentArrayMap.java#L115
HASHTABLE_THRESHOLD is a constant set to 16, 8 keys and 8 values. So when
you assoc onto an arraymap with 8 key-value pairs it returns a hashmap.
The reason for this, as far as I understand it, is that with small hashmaps
it's more efficient to do simple copy-on-write. In other words when you
assoc onto it, it copies the entire map, adds the new key-value pair to the
copy, and then returns the copy. With larger hashmaps, it becomes more
useful to do use a more complicated tree structure which uses structural
sharing so that assoc doesn't copy the entire map. Copying a small 5
element map isn't a big deal, but copying one with several thousand
elements is.
On Fri, Aug 10, 2012 at 5:43 PM, Hussein B. hubaghd...@gmail.com wrote:
Hi,
Why Clojure map literal creates an instance of array map but not hash map?
What are the advantages of array map over hash map?
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 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: CSV Parser
The usual filename extension for Clojure files is .clj. Renaming it to that will also get you syntax highlighting on the gist. On Thu, Jul 26, 2012 at 4:10 PM, Christian Sperandio christian.speran...@gmail.com wrote: Below the link :) https://gist.github.com/3184210 Thanks 2012/7/26 Jeremy Heiler jeremyhei...@gmail.com: On Wed, Jul 25, 2012 at 7:31 PM, Christian Sperandio christian.speran...@gmail.com wrote: hi, I started learning Clojure programming these last days. For my training, I developped a CSV parser. I propose to everyone and I'd like to hava advice about my development (is it in the FP logic? Do I use the good practices ?) My attachment contains the source file and a test file. I simulate a file content by using vector. I used the Clojure 1.3 for my dev. You would probably be better off if you put your project on GitHub (or as a Gist) so we can view it online. Thanks for your advice :) Chris -- 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: Why cannot last be fast on vector?
Here's a somewhat old but still generally useful article on how Clojure
vectors are implemented:
http://blog.higher-order.net/2009/02/01/understanding-clojures-persistentvector-implementation/
Vectors are optimized for random access, whereas lists are optimized for
going through from the beginning to the end, which is exactly what the last
function does.
On Thu, Jun 28, 2012 at 7:36 PM, David Nolen dnolen.li...@gmail.com wrote:
On Thu, Jun 28, 2012 at 7:32 PM, Warren Lynn wrn.l...@gmail.com wrote:
This is an off-shoot subject from my last post General subsequence
function.
I found people had similar questions before (one year ago):
http://groups.google.com/group/clojure/browse_thread/thread/712711f049507c63/aea7cf438aa22922
As of Clojure 1.4, seems nothing changed, as source show here:
user (source last)
(def
^{:arglists '([coll])
:doc Return the last item in coll, in linear time
:added 1.0
:static true}
last (fn ^:static last [s]
(if (next s)
(recur (next s))
(first s
Any reason for that? Thanks.
Don't hold your breath. Assume that the language was designed after much
consideration. last is a sequence operation, not a collection operation. If
the distinction doesn't make sense, I suggest you explore the design
decision by writing some non-trivial Clojure code so you can arrive at your
own satisfying answer why this was done. Otherwise you'll just listen to
people repeat the same answer without hearing what is being said.
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
Re: what is js/ in clojurescript?
A quick explanation is that functions/other javascript objects that otherwise exist in the global namespace (ie. document, console, window) are accessed through the js/ in Clojurescript. This is a JS-specific thing and therefore you don't find js/ in regular Clojure. However, doing the form (MyClass/MyStaticMethod arg1 arg2 ...) *does* exist in Clojure. It's a way of calling static Java methods or accessing static fields. See http://clojure.org/java_interop for more info. On Thu, May 3, 2012 at 12:12 AM, Rob rob.nikan...@gmail.com wrote: Hi, Syntax like this doesn't work in normal Clojure, right? js/document.body.style It just did in a ClojureScript repl. Is there something magic about js/ ? What is it? thanks, Rob -- 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: Light Table - a new IDE concept
Nope, the source hasn't been released yet. I think Chris is still trying to figure out what to do with it. 2012/4/13 D.Bushenko d.bushe...@gmail.com This is really interesting. Is there a sourcecode for the light table ? I couldn't find it... пятница, 13 апреля 2012 г., 21:34:54 UTC+3 пользователь looselytyped написал: This is an awesome implementation of Brett Victors Inventing On Principle [http://vimeo.com/36579366] using Clojure and Noir by Chris Granger (who also wrote Noir). Figured I would share it with the group. http://www.chris-granger.com/**2012/04/12/light-table---a-** new-ide-concept/http://www.chris-granger.com/2012/04/12/light-table---a-new-ide-concept/ Raju пятница, 13 апреля 2012 г., 21:34:54 UTC+3 пользователь looselytyped написал: This is an awesome implementation of Brett Victors Inventing On Principle [http://vimeo.com/36579366] using Clojure and Noir by Chris Granger (who also wrote Noir). Figured I would share it with the group. http://www.chris-granger.com/**2012/04/12/light-table---a-** new-ide-concept/http://www.chris-granger.com/2012/04/12/light-table---a-new-ide-concept/ Raju -- 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: Where to post job ad
Yep, just make sure to mention that it's an offer and the location in the subject to make it easy to spot. On Fri, Mar 30, 2012 at 11:39 AM, David Powell djpow...@djpowell.netwrote: On Fri, Mar 30, 2012 at 1:35 PM, David Jagoe davidja...@gmail.com wrote: G'day everyone I am increasingly relying on clojure and plan to use clojureclr and clojurescript in production too. I will soon need to hire a clojure developer and was hoping that someone could suggest a good place to post a job ad. I've never seen a job posted here but I would like to reach the community. They've been posted here before. I'm sure nobody will mind. -- Dave -- 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: Alternative download site for Clojure 1.3?
And like Sean mentioned, using Leiningen *really* helps. Especially when you have Emacs with clojure set up as well. On Fri, Mar 30, 2012 at 8:17 AM, Murphy McMahon pande...@gmail.com wrote: Learning Clojure is the fun part. Setup and maintenance of the tools is a little less fun, IMO. But where there's a will (and a connection to freenode), there's a way. On Mar 30, 2012 9:09 AM, Chris Webster cmhwebs...@gmail.com wrote: Thanks for the advice, guys. I think it must just have been some temporary problem on the site, as I finally got it to download late last night. Now all I have to do is learn Clojure, eh? -- 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: - and -
- - http://clojuredocs.org/clojure_core/clojure.core/-%3E - http://clojuredocs.org/clojure_core/clojure.core/-%3E%3E On Wed, Feb 8, 2012 at 11:16 AM, Simon Holgate simon.holg...@gmail.com wrote: Could anyone point me to a description of - and -, please? I've seen a few references to them (e.g. git://gist.github.com/1761143.git) but nothing in Programming Clojure. Google doesn't seem to like searching for such strings. 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 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: Opposite function to cons, but in terms of construction, not destruction.
Conj (http://clojuredocs.org/clojure_core/clojure.core/conj) does what you need for vectors. It's behavior depends on the type of collection passed, so if you did: (conj '(1 2 3) 4) you would end up with '(4 1 2 3). For vectors it appends to the end of the list, for lists the beginning. On Sat, Dec 10, 2011 at 6:13 AM, Michael Jaaka michael.ja...@googlemail.com wrote: Is there something like: (defn snoc[ col item ] (lazy-seq (if (seq col) (let[ [f r] col ] (if (seq r) (cons f (snoc r item)) (cons f [item]))) [item]))) already here? (snoc (snoc (snoc [ 1 2 3] 4) 6) 7) gives: (1 2 3 4 5 6 7) -- 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: I/O
For that you'll have to look into the clj-http library:
https://github.com/mmcgrana/clj-http
From the readme: (client/post http://site.com/resources; {:body string})
On Thu, Aug 25, 2011 at 2:00 PM, Terje Dahl te...@terjedahl.no wrote:
Great question. And great answer.
Seriously! I did not know it could be that easy.
So an http GET just needs 1 lines!:
(slurp (reader http://google.com;))
(Don't forget: (use 'clojure.java.io) )
Is there an equally easy way to do an http POST?
And also a multi-part (including one or more files in the POST)?
On 25 Aug, 18:24, Mats Rauhala mats.rauh...@gmail.com wrote:
I too stumbled upon this a while ago. I might even say that on some
level it's so simple that there is not much documentation about it, and
at some point it gets 'complex' enough that you should know about java
enough.
The simplest way is to slurp or spit. slurp reads a file into a string,
and spit writes a string into a file.
Then there is the with-open macro(?) which opens connections and closes
them when one. The reader and writer opens a java Reader and Writer
classes respectively. (They're interfaces, but those functions try to
figure out what kind of handle you're trying to open). Also the
output-stream and input-stream handle it a bit.
(with-open [r (reader http://www.reddit.com;)]
(.read r))
And to finish this off with a shameless plug; I wrote a blog post about
downloading a random wallpaper from reddit, which handles reading http
content, parsing json and reading/writing binary files.
http://users.utu.fi/machra/posts/2011-08-24-2-reddit-clojure.html
--
Mats Rauhala
MasseR
application_pgp-signature_part
1 KVisLast ned
--
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: ClojureScript Memory Requirements
I've removed the first two flags since I work on a 32 bit machine and haven't run into any problems either. I'm guessing the the extra memory simply helps with compilation times. On Tue, Jul 26, 2011 at 9:49 AM, Timothy Baldridge tbaldri...@gmail.comwrote: So I've hit an issue with the ClojureScript compiler memory requirements several times now. The command line arguments in use for both the compiler and the repl are thus: -Xmx2G -Xms2G -Xmn256m So basically this requires 2GB of memory right off the bat to even run the compiler. Now I'm not interested in a discussion of the memory usage of Clojure, we all know it's a bit more memory intensive than C or plain Java, and that's not my point. My question is, is this 2GB really needed? On Windows boxes, and perhaps some Linux Machines, this is not 2GB of virtual memory, but actually 2GB of read RAM. So my main workstation, which has 4GB of ram will fail to run this compiler if I have too many programs open. So I thought I'd try this in a VMbut my VM needs to have at least 2GB of RAM? As a test, I removed these options from the command line scripts and a simple hello world compiled fine...so I'm not sure what the issue is. Any thoughts on all this? Thanks, Timothy -- “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 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 on Windows
I've gotten the basics working. Haven't had the time to write up a full blog post, though. Basically I used Cygwin so that I could run the bootstrap script. In any of the shell scripts where it sets a classpath you'll have to change the colons to semicolons. On Mon, Jul 25, 2011 at 10:59 AM, Timothy Baldridge tbaldri...@gmail.comwrote: Is there a documented way to get ClojureScript working on Windows? While I'm familiar with Linux, and use it in several server environments, all my development is on Windows, so I don't really have access to a Linux box for development. Timothy -- “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 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
Can't find clojure.main in clojurescript's script/repl on Windows
Hi everyone, I'm trying to get the repl for Clojurescript to start under Windows but keep running into the following error: Exception in thread main java.lang.NoClassDefFoundError: clojure/main Caused by: java.lang.ClassNotFoundException: clojure.main at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) Could not find the main class: clojure.main. Program will exit. I've tried both running the script under cygwin and putting the contents into a batch file and running it with cmd.exe (it shouldn't be a problem since script/repl just contains one command which starts the java runtime with a few options). I've even tried changing the forward slashes in the command to backslashes. Also, I'm running these commands from the clojurescript root directory. Even though it probably won't affect it I've set CLOJURESCRIPT_HOME as well. Any ideas? -- 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: Can't find clojure.main in clojurescript's script/repl on Windows
Yes. It worked fine. On Thu, Jul 21, 2011 at 5:48 PM, Devin Walters dev...@gmail.com wrote: Did you run script/bootstrap? You need a clojure-1.3 jar in your clojurescript/lib directory. On Thursday, July 21, 2011 at 4:45 PM, Tamreen Khan wrote: Hi everyone, I'm trying to get the repl for Clojurescript to start under Windows but keep running into the following error: Exception in thread main java.lang.NoClassDefFoundError: clojure/main Caused by: java.lang.ClassNotFoundException: clojure.main at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) Could not find the main class: clojure.main. Program will exit. I've tried both running the script under cygwin and putting the contents into a batch file and running it with cmd.exe (it shouldn't be a problem since script/repl just contains one command which starts the java runtime with a few options). I've even tried changing the forward slashes in the command to backslashes. Also, I'm running these commands from the clojurescript root directory. Even though it probably won't affect it I've set CLOJURESCRIPT_HOME as well. Any ideas? -- 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 (mailto: 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 (mailto: 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: Can't find clojure.main in clojurescript's script/repl on Windows
Hmm, I have clojure.jar, but not clojure-1.3.jar in clojurescript/lib On Thu, Jul 21, 2011 at 5:49 PM, Tamreen Khan histor...@gmail.com wrote: Yes. It worked fine. On Thu, Jul 21, 2011 at 5:48 PM, Devin Walters dev...@gmail.com wrote: Did you run script/bootstrap? You need a clojure-1.3 jar in your clojurescript/lib directory. On Thursday, July 21, 2011 at 4:45 PM, Tamreen Khan wrote: Hi everyone, I'm trying to get the repl for Clojurescript to start under Windows but keep running into the following error: Exception in thread main java.lang.NoClassDefFoundError: clojure/main Caused by: java.lang.ClassNotFoundException: clojure.main at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) Could not find the main class: clojure.main. Program will exit. I've tried both running the script under cygwin and putting the contents into a batch file and running it with cmd.exe (it shouldn't be a problem since script/repl just contains one command which starts the java runtime with a few options). I've even tried changing the forward slashes in the command to backslashes. Also, I'm running these commands from the clojurescript root directory. Even though it probably won't affect it I've set CLOJURESCRIPT_HOME as well. Any ideas? -- 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 (mailto: 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 (mailto: 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: Can't find clojure.main in clojurescript's script/repl on Windows
Changing colons to semicolons did it! I guess since the classpath is a string that's passed to Java it still treats it like it would any path on Windows, even though I'm using it through Cygwin. Thanks again! On Thu, Jul 21, 2011 at 6:49 PM, Brenton bashw...@gmail.com wrote: That clojure.jar file is clojure 1.3. Something is wrong with the classpath. Here are a couple of things to try: - when using a batch file the classpath must be delimited with semicolons instead of colons - try replacing lib/* with an explicit list everything that is in lib - something like lib/clojure.jar;lib/goog.jar;lib/compiler.jar Just some thoughts On Jul 21, 5:50 pm, Tamreen Khan histor...@gmail.com wrote: Hmm, I have clojure.jar, but not clojure-1.3.jar in clojurescript/lib On Thu, Jul 21, 2011 at 5:49 PM, Tamreen Khan histor...@gmail.com wrote: Yes. It worked fine. On Thu, Jul 21, 2011 at 5:48 PM, Devin Walters dev...@gmail.com wrote: Did you run script/bootstrap? You need a clojure-1.3 jar in your clojurescript/lib directory. On Thursday, July 21, 2011 at 4:45 PM, Tamreen Khan wrote: Hi everyone, I'm trying to get the repl for Clojurescript to start under Windows but keep running into the following error: Exception in thread main java.lang.NoClassDefFoundError: clojure/main Caused by: java.lang.ClassNotFoundException: clojure.main at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) Could not find the main class: clojure.main. Program will exit. I've tried both running the script under cygwin and putting the contents into a batch file and running it with cmd.exe (it shouldn't be a problem since script/repl just contains one command which starts the java runtime with a few options). I've even tried changing the forward slashes in the command to backslashes. Also, I'm running these commands from the clojurescript root directory. Even though it probably won't affect it I've set CLOJURESCRIPT_HOME as well. Any ideas? -- 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(mailto: 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 (mailto: 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
Re: principle of least surprise
It's because functions such as reduce, map, reverse, etc. only work on sequences, so they have to call seq on that argument. Strings just happen to be seq-able but calling seq on one returns a list of characters, so the result is one too. Reverse always returns a sequence and strings aren't technically sequences, so that's why it doesn't convert the characters back into a string. On Wednesday, July 20, 2011, Basi Lambanog restyc...@gmail.com wrote: Hello, Any reason for the change in type after some operations, for example: user= (type (reverse abc)) clojure.lang.PersistentList user= (type abc) java.lang.String Since reverse operates on a string, shouldn't the result be a string as well? There's a few more of these type re-casting after an operation. Tuba -- 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: clooj, a lightweight IDE for clojure
It's a little confusing to see what's normally the text for the prompt, user=, be in the window that shows the result. Why can't both the prompt and the results be shown in the same area? On Mon, Jul 18, 2011 at 8:32 AM, Adam Burry abu...@gmail.com wrote: - I just created a new project and I get a user prompt in the REPL pane but I can't type anything into that... so I can't actually try it... I click in there but I don't get a cursor there, and typing does nothing. In case it matters I'm running Mac OS 10.6.8 and java -version says: Re-read the OP. The right hand column has two parts: the top part shows REPL evaluation, the bottom part is your REPL input window. Adam -- 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: Repeating a vector n times
Damn, Meikel's solution is better, I was thinking: (apply concat (repeat n xs)) On Wed, Jul 13, 2011 at 10:54 AM, Bhinderwala, Shoeb sabhinderw...@wellington.com wrote: ** I have to write a function that will take a vector as input, repeat the elements multiple times and return back a single vector of the repeated items. I came up with the following but am wondering if there is a better or simpler way to write this: (def xs [a b c]) (defn repeat-vec-n [xs n] (vec (reduce concat [] (take n (repeat xs) OUTPUT: user= xs [a b c] user= (repeat-vec-n xs 3) [a b c a b c a b c] ***-- Shoeb* -- 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: monads macros
Are monads all that special? My understanding is that even in Haskell its wise to not use monads all that much, since it starts to make the code look a little too imperative if not wielded correctly. They're not really the meat of haskell/fp. Macros on the other hand are an important part of lisp, although their overuse is also discouraged :) On Tuesday, July 12, 2011, James Keats james.w.ke...@gmail.com wrote: I'm mildly concerned about macros being seen as the secret weapon of clojure(/lisp). In their place, i wish monads would get a wider attention and embrace. Discuss? :-) -- 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: Results from 2011 State of Clojure survey
What does something being shiny and new have to do with how good its libraries, community, platforms, and support are? Heck, I'd say something being new would detract from it library-wise. Sergey's point was that when someone begins a new project they have the options of all those languages; Clojure isn't just competing with new and shiny things. On Tue, Jul 12, 2011 at 6:23 PM, Ken Wesson kwess...@gmail.com wrote: On Tue, Jul 12, 2011 at 8:55 AM, Sergey Didenko sergey.dide...@gmail.com wrote: You know that from inside. A Clojure outsider can have a completely other point of view. He can choose between Python Not new server side Javascript Not new new C# Despite what you just said, not new Go Haven't heard of it, so probably not shiny enough Scala, F# Mentioned those Haskell Not new Erlang Not new haXe Haven't heard of it, so probably not shiny enough Clojure. So far, looks like the shiny and new category is Clojure, Scala, F#, and maybe one or both of the Go and haXe you mentioned. The rest definitely aren't particularly new. Besides the languages itself, the outsider wants to evaluate libraries, community, platforms, support, etc. That puts Clojure and Scala ahead of F# and the three of them ahead of nearly everything else. -- Protege: What is this seething mass of parentheses?! Master: Your father's Lisp REPL. This is the language of a true hacker. Not as clumsy or random as C++; a language for a more civilized age. -- 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: Clojure Koans and others interactive exercises to learn clojure?
http://4clojure.com/ comes to mind, it has the same koan-style but what looks like a lot more problems and you can run the code on the site itself. On Sun, Jul 3, 2011 at 11:52 PM, Antonio Recio amdx6...@gmail.com wrote: Clojure koans https://github.com/functional-koans/clojure-koans is awesome to learn clojure. Do you know other projects with exercises to learn clojure? -- 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: Cons vs List vs. ISeqs
This stackoverflow page seems to have some info that might help: http://stackoverflow.com/questions/3008411/clojure-seq-cons-vs-list-conj Source for Cons: https://github.com/hiredman/clojure/blob/master/src/jvm/clojure/lang/Cons.java Source for PersistentList: https://github.com/hiredman/clojure/blob/master/src/jvm/clojure/lang/PersistentList.java From looking at the source it looks like one major difference between Cons and PersistentList is that Cons can have anything that implements ISeq for _rest while PersistentList must have another PersistentList. On Fri, Jun 24, 2011 at 7:35 PM, Tim Robinson tim.blacks...@gmail.comwrote: I'm under the impression that traditional lisps have a greater distinction between a cons operation vs. a list operation. Specifically I had believed that consing was a more efficient and better performing operation than using list. Is this true? and if so, given both the Cons and Lists are actually both just seqs in Clojure, does the above statement still hold true in the Clojure world? Thanks Tim -- 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
