Re: testing clojure.core/group-by with clojure.test.check
thanks Alex and others for helping out. Some very interesting ideas here but the one about leveraging the grouping function seemed easy and reading that was an epiphany moment where i realised i had been subconsciously constrained by thinking I should generate data and use a grouping fn that was similar to the narrow ways I happen to have used the group-by fn in the past. I would like to read more though and if I see good resources on scala or haskell equivalent I will try to pass on via pull request. fyi, here are encodings of the 3 properties I originally stated. I used count for group-by fn in all 3. ;;test group by (def vector-of-strings (gen/vector gen/string)) (def grouping-retains-all-input flattening the vals of the group-by result should give back contents of the original collection (prop/for-all [group-by-input vector-of-strings] (= (set group-by-input) (- (group-by count group-by-input) vals flatten set (def all-members-under-grouping-key-should-be-there applying the grouping fn to each item under a grouping should result in the grouping key (prop/for-all [group-by-input vector-of-strings] (every? #(= true %) (map (fn [[key group]] (apply = key (map count group))) (group-by count group-by-input) (def grouping-does-not-duplicate (prop/for-all [group-by-input vector-of-strings] (= (count group-by-input) (- (group-by count group-by-input) vals flatten count On Thursday, May 1, 2014 12:49:31 AM UTC+1, Andrew Chambers wrote: One approach you can use is write the generators in such a way that they generate the final answer group-by should return, then you write code which does the inverse to group by and then you check the group by answer is equal to the originally generated solution. On Wednesday, April 30, 2014 11:38:19 PM UTC+12, henry w wrote: Hi, I wanted to get started with clojure.test.check (formerly simple-check) and I am new to property based testing. I plucked clojure.core/group-by for no particular reason as a function to test. I started by stating some properties i think should hold: ;; 1. applying the grouping key function to each member in a grouping should result in the grouping key ;; 2. flattening the vals of the group-by result should give back the contents of the original collection. ;; 3. no element appears in more than one grouping. so far so good I think. there may be others but this seems ok for now. now, how to generate some data. for group-by we need two params: 1) a grouping function 2) a collection of items to be grouped If I start by naively generating collections of maps (containing keyword keys and int vals, for example), the data is of the right shape to use in group by, but there is no guarantee that: 1) any of the maps share a key that I could use for grouping 2) the values under a common key are shared This is really the crux of my problem ideally I would have the generator *mostly* produce data which is actually doing to result in the sort of collection i might want to call group-by on in real life (ie not have everything grouped under nil on each generation). So should i create a generator that creates keywords (which i will want to use as grouping function) then have another generator that produces what are going to be the values under this grouping key, then a generator that uses both of these to create collections of maps from these. then i would have to find out what the grouping keyword was that was generated this could all work, I have read enough about generators to have a stab at this... but is it the right approach? as far as implementing tests for the properties so far, I have done property 2 above, using a basic generator and yanking out an arbitrary key from it clearly a flawed approach as not much 'realistic' grouping is going to happen here. (def vector-of-maps (gen/such-that not-empty (gen/vector (gen/such-that not-empty (gen/map gen/keyword gen/int) (def all-elements-are-grouped (prop/for-all [group-by-input vector-of-maps] (let [a-map-key (- group-by-input first keys first)] ;; hmm, seems far from ideal (= (set group-by-input) (- (group-by a-map-key group-by-input) vals flatten set) help appreciated... perhaps I need to learn more about the paradigm first, but resources linked from the readme are all a bit more basic than this. so if you know of some more advanced tutorials please let me know. 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
Re: clojure code to java
for understanding what goes on in clojure to class file compilation, i have found this blog series very interesting: http://blog.guillermowinkler.com/blog/2014/04/27/decompiling-clojure-iii/ On Thursday, May 1, 2014 5:56:08 AM UTC+1, Andy Fingerhut wrote: Leiningen can convert Clojure source code to Java .class files (compiled Java byte code, not Java source code), with the help of the Clojure compiler. I don't know of a way Leiningen can convert that to Java source code, unless there is some feature of Leiningen I haven't learned about yet, or some plugin that does that. There are several programs out there, some open source, some commercial, that can decompile Java byte code files into Java source code, of varying quality. I have used a trial version of the AndroChef Java Decompiler 1.0 a few times in the past, and found its results better than one other open source Java decompiler I tried (I don't remember what that was called right now). http://www.neshkov.com/ac_decompiler.htmlhttp://www.google.com/url?q=http%3A%2F%2Fwww.neshkov.com%2Fac_decompiler.htmlsa=Dsntz=1usg=AFQjCNELMB-Kz689Y3YbzpIgravhxAF7Gw Andy On Wed, Apr 30, 2014 at 7:05 PM, Julio Berina julio...@gmail.comjavascript: wrote: I've been programming a bit in Clojure, and in my opinion it's like making Java programs without typing long Java because of it running on the JVM. However, I wanna be able to convert my Clojure code to Java code. I know Leiningen can do that, but I am really clueless at this point, and I don't know what other programs out there will convert Clojure to Java .class file. Does anyone have any tips? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: 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 javascript: 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+u...@googlegroups.com javascript:. 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: Access the datastructure used to create a function?
related to this discussion and v. interesting: http://blog.guillermowinkler.com/blog/2014/04/27/decompiling-clojure-iii/ On Tuesday, November 26, 2013 10:04:12 PM UTC, Guru Devanla wrote: The important caveat here is what do we label as data?. If we are okay with just 'streams of bytes' that will make us understand and reason some information about the function, then may be the bytecode itself could be sufficient and could be considered to be data. But, I guess the original question was regarding data that one could reason in the form on clojure forms itself. At least, that is what I believe Henry was referring to, isn't? -Guru On Tue, Nov 26, 2013 at 1:51 PM, henry w henr...@gmail.com javascript:wrote: The thing is, the data contained in the source definition is all still there in the compiled version - but apparently it is not easily accessible. It feels like it must be possible to write a function that looks at a function object and it's class and can produce at least a decent approximation to the original, or at least a clojure list version of the compiled code. No doubt completely faithful recreation wouldn't be possible, not least because of macros. Also, sometimes, such as when developing possibly, it is not always necessary to have optimum performance. On Tuesday, November 26, 2013 8:30:38 PM UTC, Alex Miller wrote: Seems like you lost the clojure mailing list in this response, so I re-added it. On Tue, Nov 26, 2013 at 2:09 PM, henry w henr...@gmail.com wrote: Thanks to all respondents. This was really just something I was curious about, although I can think of some practical uses. It's just not clear to me still if there is some really good reason code stops being data (or at least having an accessible data representation) after it is compiled. Jamie has shown it is still data, although in a very platform-specific way. Is it just the case that there aren't compelling use-cases that people have come up with perhaps? Code stops being data so it can be a more efficient form to the host platform (bytecode), which is what makes Clojure perform well. If you always left the data in the original form, you would just need an interpreter (and Clojure would be much slower). Clojure is always compiled as performance is a key concern. Pratically, some examples of use might be related to the https://github.com/clojure/tools.trace library. Here vars are temporarily bound to functions that are wrapped versions of the functions they held previously in order to print input and output. A nice alternative would be to show the function form with the parameters interpolated. Another case might be to see not just the source of a function, but to 'inline' the source of functions called from it. Or just generally mess about with functions I don't own. There has been a recent enhancement discussion (perhaps here, perhaps jira, can't find it now) to have functions retain their source definition at runtime. I'm not sure how that would be possible without significantly affecting performance and memory footprint however. On Tuesday, November 26, 2013 7:01:57 PM UTC, Alex Miller wrote: It would help to know what your real goal is, but compiled Clojure does not retain the original source form. One hook you do have though is macros which will be invoked prior to compilation. At macro execution time, you have access to the special form var which is the original form (as a Clojure data structure). Thus you could write a defn-like macro which when called to define a function definition would define the function and decorate it with meta that included the definition. I am a poor enough macrologist that I will not attempt that here but merely suggest it should be feasible. :) Alex On Thursday, November 21, 2013 12:14:39 PM UTC-6, henry w wrote: Say you have a function created like this: (fn [x] (+ x y)) and then you have a reference to an instance of this function, is there some way to use the function reference to access the list '(fn [x] (+ x y)), including the symbol 'y' (such that you could dereference 'y' and get its value)? The source function is not the right thing and so far googling hasn't got me the answer. Thanks -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: 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 javascript: 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
Re: Proposing a new Clojure documentation system (in Clojure)
Sean Corfield s...@corfield.org writes: Short, clear docstrings and well-structured code with well-named symbols short provide enough information for maintenance. But, sadly, not enough documentation for use. The state of Clojure survey brings up complaints about the documentation of clojure.core every year. Partly this because the documentation is not very good -- I still use Clojuredocs regularly, even though it's rather rusting away being on 1.3. I rarely read the documentation, just skip to the examples. But, partly, it's because the documentation format is just too simple. Javadoc, for example, is far better. And is Javadoc literate programming? If it is, then the idea that no one uses literate programming is wrong, if it is not, then literate programming is irrelevant. Even some simple documentation standards for Clojure, distinguishing parameters, functions and so on would be a step forward. And it needs to go into clojure.core so that tools support it. 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/d/optout.
Re: clojure code to java
I've used procyon
https://bitbucket.org/mstrobel/procyon/wiki/Java%20Decompiler
It decompiles all of clojure.core and produces nicely laid out code (see
below).
package clojure;
import clojure.lang.*;
public final class core$first extends AFunction
{
public Object invoke(Object coll) {
final Object x = coll;
coll = null;
return RT.first(x);
}
}
Phil
Andy Fingerhut andy.finger...@gmail.com writes:
There are several programs out there, some open source, some commercial,
that can decompile Java byte code files into Java source code, of varying
quality. I have used a trial version of the AndroChef Java Decompiler 1.0
a few times in the past, and found its results better than one other open
source Java decompiler I tried (I don't remember what that was called right
now).
http://www.neshkov.com/ac_decompiler.html
Andy
On Wed, Apr 30, 2014 at 7:05 PM, Julio Berina juliober...@gmail.com wrote:
I've been programming a bit in Clojure, and in my opinion it's like making
Java programs without typing long Java because of it running on the JVM.
However, I wanna be able to convert my Clojure code to Java code. I know
Leiningen can do that, but I am really clueless at this point, and I don't
know what other programs out there will convert Clojure to Java .class
file. Does anyone have any tips?
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Lecturer in Bioinformatics, Email: phillip.l...@newcastle.ac.uk
School of Computing Science,
http://homepages.cs.ncl.ac.uk/phillip.lord
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[pre-ANN] Clortex - a VisiCalc for Machine Intelligence Based on Neuroscience?
Until today, I've been developing Clortex using a private repo on Github. While far from complete, I feel that Clortex is now at the stage where people can take a look at it, give feedback on the design, and help shape the completion of the first alpha release over the coming weeks. I'll be hacking on Clortex this weekend (May 3rd-4th) at the NuPIC Spring Hackathon in San José, please join us on the live feeds and stay in touch using the various Social Media tools. Details - http://numenta.org/events.html#nupic_spring_2014_hackathon *WARNING:* Clortex is not even at the alpha stage yet. I'll post instructions over the next few days which will allow you to get some visualisations running. You can find Clortex on Github at https://github.com/fergalbyrne/clortex A quick intro: *A new kind of computing requires a new kind of software design.* Hierarchical Temporal Memory (HTM) and the Cortical Learning Algorithm (CLA) represent a new kind of computing, in which many, many millions of tiny, simple, unreliable components interact in a massively parallel, emergent choreography to produce what we would recognise as intelligence. Jeff Hawkins and his company, Numenta, have built a system called NuPIC using the principles of the neocortex. Clortex is a reimagining of CLA, using modern software design ideas to unleash the potential of the theory. Clortex’ design is all about turning constraints into synergies, using the expressive power and hygiene of Clojure and its immutable data structures, the unique characteristics of the Datomic database system, and the scaleability and portability characteristics of the Java Virtual Machine. Clortex will run on hosts as small as Raspberry Pi, a version will soon run in browsers and phones, yet it will scale layers and hierarchies across huge clusters to deliver real power and test the limits of HTM and CLA in production use. *How can you get involved?* Clortex is just part of a growing effort to realise the potential of Machine Intelligence based on the principles of the brain. - Visit the Numenta.org site for videos, white papers, details of the NuPIC mailing list, wikis, etc. - Have a look at (and optionally pre-purchase) my Leanpub.com book: Real Machine Intelligence with Clortex and NuPIChttp://leanpub.com/realsmartmachines . - Join the Clortex Google Grouphttps://groups.google.com/forum/#!forum/clortexfor discussion and updates. - We'll be launching an Indiegogo campaign during May 2014 to fund completion of Clortex, please let us know if you're interested in supporting us when we launch. -- Fergal Byrne, Brenter IT Author, Real Machine Intelligence with Clortex and NuPIC https://leanpub.com/realsmartmachines Speaking on Clortex and HTM/CLA at euroClojure Krakow, June 2014: http://euroclojure.com/2014/ and at LambdaJam Chicago, July 2014: http://www.lambdajam.com http://inbits.com - Better Living through Thoughtful Technology http://ie.linkedin.com/in/fergbyrne/ - https://github.com/fergalbyrne e:fergalbyrnedub...@gmail.com t:+353 83 4214179 Join the quest for Machine Intelligence at http://numenta.org Formerly of Adnet edi...@adnet.ie http://www.adnet.ie -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Do not understand the - macro here
Is this a nice explanation about macros : http://bryangilbert.com/code/2013/07/30/anatomy-of-a-clojure-macro/ or is there a better one for a beginner. Roelof -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: clojure code to java
In general, the bytecode the Clojure compiler produces is not directly transformable back into Java source by any decompiler I'm aware of. On Wednesday, April 30, 2014 11:56:08 PM UTC-5, Andy Fingerhut wrote: Leiningen can convert Clojure source code to Java .class files (compiled Java byte code, not Java source code), with the help of the Clojure compiler. I don't know of a way Leiningen can convert that to Java source code, unless there is some feature of Leiningen I haven't learned about yet, or some plugin that does that. There are several programs out there, some open source, some commercial, that can decompile Java byte code files into Java source code, of varying quality. I have used a trial version of the AndroChef Java Decompiler 1.0 a few times in the past, and found its results better than one other open source Java decompiler I tried (I don't remember what that was called right now). http://www.neshkov.com/ac_decompiler.html Andy On Wed, Apr 30, 2014 at 7:05 PM, Julio Berina julio...@gmail.comjavascript: wrote: I've been programming a bit in Clojure, and in my opinion it's like making Java programs without typing long Java because of it running on the JVM. However, I wanna be able to convert my Clojure code to Java code. I know Leiningen can do that, but I am really clueless at this point, and I don't know what other programs out there will convert Clojure to Java .class file. Does anyone have any tips? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: 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 javascript: 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+u...@googlegroups.com javascript:. 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: difference in behavior for :let modifiers in for vs. doseq
The code in question is of course easily transformable into: (let [a 1] (for [b '(1 2 3)] (println a b))) and I think that most examples people have given are similarly rewritable. I'm generally in favor of fixing nits like this (removing exceptional cases) so the question does not need to be asked, it is a low priority (and others in the approval chain may not concur with me :). Alex On Wednesday, April 30, 2014 11:48:39 PM UTC-5, Andy Fingerhut wrote: At least a few people consider it a bug, and two of them created a ticket, the first of which was declined as not a bug. That is some evidence that it is considered not a bug: http://dev.clojure.org/jira/browse/CLJ-1316 http://dev.clojure.org/jira/browse/CLJ-207 Andy On Wed, Apr 30, 2014 at 9:39 PM, Yuri Niyazov yuri.n...@gmail.comjavascript: wrote: Hello everyone, In Clojure 1.6: user (doseq [:let [a 1] b '(1 2 3)] (println a b)) 1 1 1 2 1 3 nil user (for [:let [a 1] b '(1 2 3)] (println a b)) IllegalStateException Can't pop empty vector clojure.lang.PersistentVector.pop (PersistentVector.java:381) user Is this expected behavior? a bug? Something I missed in the documentation? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: 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 javascript: 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+u...@googlegroups.com javascript:. 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: Parameter order for APIs
On Wednesday, April 30, 2014 10:22:55 PM UTC-5, Colin Fleming wrote: Hi everyone, After the very interesting keyword argument debate, I have another question about API design. Specifically I'm interested in suggestions about parameter order. The new API guidelines, which have changed very recently to favour maps over keyword args, also changed to include a suggestion that the keyword map be the first argument, since it's the least variance argument. I've been using some fairly simple rules to order my parameters, basically 1) functions that operate on collections should have the collection last to interoperate with -, and 2) functions operating on a main object should accept that first, to interoperate with -. #2 is generally pretty intuitive since it's the same as Java interop and protocol calls, but there's still a fair amount of ambiguity with just these rules unless all your functions have one or two arguments. In the core library, collection functions (that take a collection and return a modified collection, ex: get, assoc, conj) take their argument *first* and work with -. Sequence functions (which take a seqable and return a sequence) take their argument *last* and work with -. I would suggest that as a first preference. I'm interested in opinions about the variance ordering, since I assume this is to facilitate use of partial and the like. I never really use partial myself so I don't have a good feeling for how this ordering should work - any comments or opinions? I don't tend to use partial a lot but do occasionally re-order args to make that feasible. Thanks, Colin -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Do not understand the - macro here
I think the confusion is because they used multiple values when comparing the equality (= (__ (sort (rest (reverse [2 5 4 1 3 6] (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__)) 5) This can be seen as : (def A (__ (sort (rest (reverse [2 5 4 1 3 6]) (def B (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__))) Then the 4Clojure exercise can be written as: (= A B 5) Do not feel bad, this took me some time to realize 5 was not part of B. On Thu, May 1, 2014 at 7:52 AM, Roelof Wobben rwob...@hotmail.com wrote: Is this a nice explanation about macros : http://bryangilbert.com/code/2013/07/30/anatomy-of-a-clojure-macro/ or is there a better one for a beginner. Roelof -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Do not understand the - macro here
Op donderdag 1 mei 2014 15:20:38 UTC+2 schreef Erlis Vidal: I think the confusion is because they used multiple values when comparing the equality (= (__ (sort (rest (reverse [2 5 4 1 3 6] (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__)) 5) This can be seen as : (def A (__ (sort (rest (reverse [2 5 4 1 3 6]) (def B (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__))) Then the 4Clojure exercise can be written as: (= A B 5) Do not feel bad, this took me some time to realize 5 was not part of B. No problem. But still it does not make any sense. If I do it right. this schould be the output of the functions A [ 1 2 3 4 5] B [ 1 2 3 4 5] (= A B 5) -- [1,2,3,4,5] = [1,2,3,4,5] = 5 and this is not true. On Thu, May 1, 2014 at 7:52 AM, Roelof Wobben rwo...@hotmail.comjavascript: wrote: Is this a nice explanation about macros : http://bryangilbert.com/code/2013/07/30/anatomy-of-a-clojure-macro/ or is there a better one for a beginner. Roelof -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: 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 javascript: 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+u...@googlegroups.com javascript:. 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: [ANN] om-start lein template for nrepl compliant editors/IDEs
Thanks mimmo! Looking forward to trying this 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/d/optout.
Re: clojure code to java
Really, try procyon. Of course, it depends on whether you mean java code that you can look at, and get an idea of what is going on easier than looking at bytecode, or java code that you can compile to get the same thing that you decompiled. The latter no, but the former works. Phil Alex Miller a...@puredanger.com writes: In general, the bytecode the Clojure compiler produces is not directly transformable back into Java source by any decompiler I'm aware of. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Do not understand the - macro here
On Thu, May 1, 2014 at 3:51 PM, Roelof Wobben rwob...@hotmail.com wrote: Op donderdag 1 mei 2014 15:20:38 UTC+2 schreef Erlis Vidal: I think the confusion is because they used multiple values when comparing the equality (= (__ (sort (rest (reverse [2 5 4 1 3 6] (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__)) 5) This can be seen as : (def A (__ (sort (rest (reverse [2 5 4 1 3 6]) (def B (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__))) Then the 4Clojure exercise can be written as: (= A B 5) Do not feel bad, this took me some time to realize 5 was not part of B. No problem. But still it does not make any sense. If I do it right. this schould be the output of the functions A [ 1 2 3 4 5] B [ 1 2 3 4 5] (= A B 5) -- [1,2,3,4,5] = [1,2,3,4,5] = 5 and this is not true. This is the output when you don't write the function to replace __. On Thu, May 1, 2014 at 7:52 AM, Roelof Wobben rwo...@hotmail.com wrote: Is this a nice explanation about macros : http://bryangilbert.com/code/ 2013/07/30/anatomy-of-a-clojure-macro/ or is there a better one for a beginner. Roelof -- 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=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/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: Do not understand the - macro here
The task is to replace __ with the function that makes this true in this case makes [1 2 3 4 5] to 5 On Thu, May 1, 2014 at 4:23 PM, Maik Schünemann maikschuenem...@gmail.comwrote: On Thu, May 1, 2014 at 3:51 PM, Roelof Wobben rwob...@hotmail.com wrote: Op donderdag 1 mei 2014 15:20:38 UTC+2 schreef Erlis Vidal: I think the confusion is because they used multiple values when comparing the equality (= (__ (sort (rest (reverse [2 5 4 1 3 6] (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__)) 5) This can be seen as : (def A (__ (sort (rest (reverse [2 5 4 1 3 6]) (def B (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__))) Then the 4Clojure exercise can be written as: (= A B 5) Do not feel bad, this took me some time to realize 5 was not part of B. No problem. But still it does not make any sense. If I do it right. this schould be the output of the functions A [ 1 2 3 4 5] B [ 1 2 3 4 5] (= A B 5) -- [1,2,3,4,5] = [1,2,3,4,5] = 5 and this is not true. This is the output when you don't write the function to replace __. On Thu, May 1, 2014 at 7:52 AM, Roelof Wobben rwo...@hotmail.comwrote: Is this a nice explanation about macros : http://bryangilbert.com/code/ 2013/07/30/anatomy-of-a-clojure-macro/ or is there a better one for a beginner. Roelof -- 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=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/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: Do not understand the - macro here
Look that (def A ...) won't compile as given, so you cannot say A is [1 2 3 4 5], A is something else once you make it compile filling the blank space with the missing function. On Thu, May 1, 2014 at 10:24 AM, Maik Schünemann maikschuenem...@gmail.comwrote: The task is to replace __ with the function that makes this true in this case makes [1 2 3 4 5] to 5 On Thu, May 1, 2014 at 4:23 PM, Maik Schünemann maikschuenem...@gmail.com wrote: On Thu, May 1, 2014 at 3:51 PM, Roelof Wobben rwob...@hotmail.comwrote: Op donderdag 1 mei 2014 15:20:38 UTC+2 schreef Erlis Vidal: I think the confusion is because they used multiple values when comparing the equality (= (__ (sort (rest (reverse [2 5 4 1 3 6] (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__)) 5) This can be seen as : (def A (__ (sort (rest (reverse [2 5 4 1 3 6]) (def B (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__))) Then the 4Clojure exercise can be written as: (= A B 5) Do not feel bad, this took me some time to realize 5 was not part of B. No problem. But still it does not make any sense. If I do it right. this schould be the output of the functions A [ 1 2 3 4 5] B [ 1 2 3 4 5] (= A B 5) -- [1,2,3,4,5] = [1,2,3,4,5] = 5 and this is not true. This is the output when you don't write the function to replace __. On Thu, May 1, 2014 at 7:52 AM, Roelof Wobben rwo...@hotmail.comwrote: Is this a nice explanation about macros : http://bryangilbert.com/code/2013/07/30/anatomy-of-a-clojure-macro/ or is there a better one for a beginner. Roelof -- 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=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/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.
Re: Do not understand the - macro here
oke, I misunderstood everyone. The right answer is last. (def A (__ (sort (rest (reverse [2 5 4 1 3 6]) which would be : (def A (last (sort (rest (reverse [2 5 4 1 3 6]) which resolves to 5 (def B (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__))) Which would be : (def B (- [2 5 4 1 3 6] (reverse) (rest) (sort) (last))) which resolves also to 5 so the last part : ( = a b 5) is also true ( = 5 5 5) Still I find it wierd to make such sort of form. Roelof Op donderdag 1 mei 2014 16:35:59 UTC+2 schreef Erlis Vidal: Look that (def A ...) won't compile as given, so you cannot say A is [1 2 3 4 5], A is something else once you make it compile filling the blank space with the missing function. On Thu, May 1, 2014 at 10:24 AM, Maik Schünemann maiksch...@gmail.comjavascript: wrote: The task is to replace __ with the function that makes this true in this case makes [1 2 3 4 5] to 5 On Thu, May 1, 2014 at 4:23 PM, Maik Schünemann maiksch...@gmail.comjavascript: wrote: On Thu, May 1, 2014 at 3:51 PM, Roelof Wobben rwo...@hotmail.comjavascript: wrote: Op donderdag 1 mei 2014 15:20:38 UTC+2 schreef Erlis Vidal: I think the confusion is because they used multiple values when comparing the equality (= (__ (sort (rest (reverse [2 5 4 1 3 6] (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__)) 5) This can be seen as : (def A (__ (sort (rest (reverse [2 5 4 1 3 6]) (def B (- [2 5 4 1 3 6] (reverse) (rest) (sort) (__))) Then the 4Clojure exercise can be written as: (= A B 5) Do not feel bad, this took me some time to realize 5 was not part of B. No problem. But still it does not make any sense. If I do it right. this schould be the output of the functions A [ 1 2 3 4 5] B [ 1 2 3 4 5] (= A B 5) -- [1,2,3,4,5] = [1,2,3,4,5] = 5 and this is not true. This is the output when you don't write the function to replace __. On Thu, May 1, 2014 at 7:52 AM, Roelof Wobben rwo...@hotmail.comwrote: Is this a nice explanation about macros : http://bryangilbert.com/code/2013/07/30/anatomy-of-a-clojure-macro/ or is there a better one for a beginner. Roelof -- 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=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/d/optout. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: 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 javascript: 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+u...@googlegroups.com javascript:. 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 clo...@googlegroups.comjavascript: 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 javascript: 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+u...@googlegroups.com javascript:. 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,
Re: Proposing a new Clojure documentation system (in Clojure)
On Wednesday, April 30, 2014 1:03:24 PM UTC-5, Gregg Reynolds wrote: The one thing that I think would be genuinely useful and developer friendly with respect to Clojure is a means of making type signatures explicit. Clojure may be dynamically typed, but everything has an intended type, and I would like to see it. I'm thinking of something along the way Haskell and other languages express type sigs. The paradigmatic example is factorial (or fibonacci). So given a factorial function fact I want to be able to write something like (type-sig fact) and get something like Int - Int I think this is a great idea. A type-sig functions is a nice idea, but one can do this now, by adding to docstrings. I am going to think about adding something like this to the docstrings for my own code. Sean made an interesting point about core.typed, but I'm not sure whether it gets in the way of documenting intended signatures. Jony suggested Prismatic/schema. That looks like a useful tool, but it wasn't clear to me, without installing it an playing with it for a bit, whether it generates nice signatures as documentation that can be called up in the REPL, IDEs, etc. (It also seems to be Clojurescript-specific at this point.) It seems as if a syntax for intended type signatures is obviously not entirely simple, for at least two reasons. 1. Functions have complex intended type signatures: Functions can have multiple parameter sequences, because of optional arguments with , and because of complex arguments such as maps. 2. Many functions with a base intended use are also intended to have more general uses. This is particularly common for functions that are part of the Clojure language itself. (What sort of intended type signatures should the function seq have, given that the docstring for empty? says: Please use the idiom (seq x) rather than (not (empty? x)) ?) On the other hand I'm sure that most functions defined outside of a general-purpose tool collection (such as Clojure itself) are intended *only* for very specific uses. Perhaps a syntax of such intended-type-signatures would be worth discussion in another thread. The typed FP tradition embodied in Haskell may have already worked out solutions to the first set of complications, but not the second issue. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Datascript and React.js for a Clojure web app
Looks good. Is the admin login supposed to work? On Wed, Apr 30, 2014 at 6:32 AM, Gijs S. gijsstuur...@gmail.com wrote: Hi all, I've released a Clojure web application. It includes a front-end using DataScript and React.js in ClojureScript. More details here: http://thegeez.net/2014/04/30/datascript_clojure_web_app.html The code is on github: https://github.com/thegeez/clj-crud Demo on heroku: http://clj-crud.herokuapp.com/ Best regards, Gijs -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: [ClojureScript] Re: [ANN] om-start lein template for nrepl compliant editors/IDEs
Hi Mimmo, I sent 2 small pull requests for updating things in om-start README: - link of the om basic tutorial has changed in swanodette's wiki - starting leiningen projects in CCW uses the familiar (to Eclipse users) Run as Clojure Application instead of the specific Lein Launch headless REPL Cheers, -- Laurent 2014-05-01 15:56 GMT+02:00 Ivan L ivan.laza...@gmail.com: Thanks mimmo! Looking forward to trying this out. -- Note that posts from new members are moderated - please be patient with your first post. --- You received this message because you are subscribed to the Google Groups ClojureScript group. To unsubscribe from this group and stop receiving emails from it, send an email to clojurescript+unsubscr...@googlegroups.com. To post to this group, send email to clojurescr...@googlegroups.com. Visit this group at http://groups.google.com/group/clojurescript. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Proposing a new Clojure documentation system (in Clojure)
(Author of core.typed) Typed Clojure's function syntax generally won't get in your way if you're trying to jot down a type signature. It can handle multiple arities, polymorphism, keyword arguments, rest arguments and more. The whole point of Typed Clojure is to model how programmers use Clojure. eg. the semantics for firsthttps://github.com/clojure/core.typed/blob/master/src/main/clojure/clojure/core/typed/base_env.clj#L1261. We're actively expanding what can be expressed with types. Thanks, Ambrose On Fri, May 2, 2014 at 12:05 AM, Mars0i marsh...@logical.net wrote: On Wednesday, April 30, 2014 1:03:24 PM UTC-5, Gregg Reynolds wrote: The one thing that I think would be genuinely useful and developer friendly with respect to Clojure is a means of making type signatures explicit. Clojure may be dynamically typed, but everything has an intended type, and I would like to see it. I'm thinking of something along the way Haskell and other languages express type sigs. The paradigmatic example is factorial (or fibonacci). So given a factorial function fact I want to be able to write something like (type-sig fact) and get something like Int - Int I think this is a great idea. A type-sig functions is a nice idea, but one can do this now, by adding to docstrings. I am going to think about adding something like this to the docstrings for my own code. Sean made an interesting point about core.typed, but I'm not sure whether it gets in the way of documenting intended signatures. Jony suggested Prismatic/schema. That looks like a useful tool, but it wasn't clear to me, without installing it an playing with it for a bit, whether it generates nice signatures as documentation that can be called up in the REPL, IDEs, etc. (It also seems to be Clojurescript-specific at this point.) It seems as if a syntax for intended type signatures is obviously not entirely simple, for at least two reasons. 1. Functions have complex intended type signatures: Functions can have multiple parameter sequences, because of optional arguments with , and because of complex arguments such as maps. 2. Many functions with a base intended use are also intended to have more general uses. This is particularly common for functions that are part of the Clojure language itself. (What sort of intended type signatures should the function seq have, given that the docstring for empty? says: Please use the idiom (seq x) rather than (not (empty? x)) ?) On the other hand I'm sure that most functions defined outside of a general-purpose tool collection (such as Clojure itself) are intended *only* for very specific uses. Perhaps a syntax of such intended-type-signatures would be worth discussion in another thread. The typed FP tradition embodied in Haskell may have already worked out solutions to the first set of complications, but not the second issue. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: [ClojureScript] Re: [ANN] om-start lein template for nrepl compliant editors/IDEs
Hi Laurent, thanks so much. Today I had the time to take a look at my repos on github after a while :(( just merged your PRs together with other couple which were pending there…. My best mimmo On 01 May 2014, at 18:49, Laurent PETIT laurent.pe...@gmail.com wrote: Hi Mimmo, I sent 2 small pull requests for updating things in om-start README: - link of the om basic tutorial has changed in swanodette's wiki - starting leiningen projects in CCW uses the familiar (to Eclipse users) Run as Clojure Application instead of the specific Lein Launch headless REPL Cheers, -- Laurent 2014-05-01 15:56 GMT+02:00 Ivan L ivan.laza...@gmail.com: Thanks mimmo! Looking forward to trying this out. -- Note that posts from new members are moderated - please be patient with your first post. --- You received this message because you are subscribed to the Google Groups ClojureScript group. To unsubscribe from this group and stop receiving emails from it, send an email to clojurescript+unsubscr...@googlegroups.com. To post to this group, send email to clojurescr...@googlegroups.com. Visit this group at http://groups.google.com/group/clojurescript. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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. signature.asc Description: Message signed with OpenPGP using GPGMail
Re: Proposing a new Clojure documentation system (in Clojure)
On Thu 1 May 2014 at 09:05:29AM -0700, Mars0i wrote: 1. Functions have complex intended type signatures: Functions can have multiple parameter sequences, because of optional arguments with , and because of complex arguments such as maps. Schema expresses these scenarios quite well, as does core.typed AFAIK. 2. Many functions with a base intended use are also intended to have more general uses. This is particularly common for functions that are part of the Clojure language itself. Constraining inputs to those that satisfy protocols and interfaces goes a long way, and provides considerable flexibility, while still providing meaningful constraints. Have a function that uses `slurp` or `spit` on a parameter? Declare that the parameter satisfies clojure.java.io/Coercions. Have a function that expects any kind of map-like object that supports `get`? Declare that it must satisfy clojure.lang.Associative. And so on. Together with Java type hierarchies, I have found it quite easy to declare polymorphic function signatures using Schema. guns pgpbQdkXAUa7G.pgp Description: PGP signature
Re: Clojure Office Hours
I too can only recommend to make use of this great opportunity. Many thanks to Ulises who helped to find a way with a problem I have always struggled with, namely the shape of the data you are working with is not visible and it is thus easy to make errors which are hard to troubleshoot. I have recorded the ideas with an example in the blog post Clojure: How To Prevent “Expected Map, Got Vector” And Similar Errorshttp://theholyjava.wordpress.com/2014/04/30/clojure-how-to-prevent-expected-map-got-vector-and-similar-errors/ . I am looking forward to talking to Ulises again in the future to review the effect of applying the ideas in practice. On Thursday, April 10, 2014 2:53:26 PM UTC+2, Leif wrote: Hi, everybody. Inspired by the SF Bay Area clojure group, ClojureBridge, and the great talks on community education from Clojure/West on youtube, I've decided to try holding my own personal Clojure office hours (online). I am personally of the opinion that face-to-face interaction is superior, so you may want to get your local user group to follow the Bay Area's lead. But if you don't agree, or you don't live near such a user group, then read on. Borrowed from the Bay Area's posting: This is a [2-person] meetup for anyone who is working on a Clojure project and wants to talk over their code or approach with an experienced Clojure developer. Projects of all levels and complexity are welcome, anyone just getting started in Clojure is encouraged to come in and talk through their first Euler or 4Clojure problems. Disclaimer: This community being what it is, there may be projects of too high a complexity for me, but I'll give it a shot. I'm going to try a test run of this for two weeks, and then I'll have to see what state I'm in (mentally and geographically). If interested, you can book at this link: https://leifpoorman.youcanbook.me/ Note: all the times are evening, US Eastern. That pretty much limits it to the western hemisphere and any east asian friends that want to do some morning hacking. Eastern hemisphere friends, make noise on this thread, and maybe some brave European/Asian clojure developer will try something similar. Cheers, Leif -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Proposing a new Clojure documentation system (in Clojure)
On Wednesday, April 30, 2014 5:48:17 PM UTC-4, Sean Corfield wrote: For a project that has its auxiliary documentation on a Github wiki, you don't even need to git clone edit the repo: you can simply click Edit Page. That's about a low a barrier to entry as there can be and we still don't see enough contribution to documentation. Via the wonders of github, this even works if the docs in question are just simple .md files. Once you're logged into github, forking, editing, submitting a PR is only a couple of clicks as well. Contributors can edit the doc/*.md file(s) right there without ever touching `git` or leaving the browser. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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.
Cleaner solution, anyone?
Hey! I wrote a blog post discussing Thomson's Paradox, and simulated it in Clojure- http://pizzaforthought.blogspot.in/2014/05/and-infinity-beyond.html The *state* function defined towards the end is not very functional. Could someone guide me towards a cleaner approach? Also, I can't find good code-highlighting tools for blogger/clojure. Any suggestions? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Cleaner solution, anyone?
Neat, so in your last solution are you trying to get rid of recur and solve 1 - (1/2)^x = time ? On Thu, May 1, 2014 at 12:06 PM, Divyansh Prakash divyanshprakas...@gmail.com wrote: Hey! I wrote a blog post discussing Thomson's Paradox, and simulated it in Clojure- http://pizzaforthought.blogspot.in/2014/05/and-infinity-beyond.html The *state* function defined towards the end is not very functional. Could someone guide me towards a cleaner approach? Also, I can't find good code-highlighting tools for blogger/clojure. Any suggestions? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Cleaner solution, anyone?
I'd suggest generating an intermediate seq with the summed time: (defn state [time] (- (thomsons-lamp) (reduce (fn [[_ t] [onoff dur]] [onoff (+ t dur)])) (drop-while (fn [[_ t]] ( t time))) first second)) - James On 1 May 2014 20:06, Divyansh Prakash divyanshprakas...@gmail.com wrote: Hey! I wrote a blog post discussing Thomson's Paradox, and simulated it in Clojure- http://pizzaforthought.blogspot.in/2014/05/and-infinity-beyond.html The *state* function defined towards the end is not very functional. Could someone guide me towards a cleaner approach? Also, I can't find good code-highlighting tools for blogger/clojure. Any suggestions? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Cleaner solution, anyone?
Reduce is not lazy, correct? Will it ever return for drop-while to execute. The problem here is not knowing how many iterations make up the sum, isnt? On Thu, May 1, 2014 at 1:13 PM, James Reeves ja...@booleanknot.com wrote: I'd suggest generating an intermediate seq with the summed time: (defn state [time] (- (thomsons-lamp) (reduce (fn [[_ t] [onoff dur]] [onoff (+ t dur)])) (drop-while (fn [[_ t]] ( t time))) first second)) - James On 1 May 2014 20:06, Divyansh Prakash divyanshprakas...@gmail.com wrote: Hey! I wrote a blog post discussing Thomson's Paradox, and simulated it in Clojure- http://pizzaforthought.blogspot.in/2014/05/and-infinity-beyond.html The *state* function defined towards the end is not very functional. Could someone guide me towards a cleaner approach? Also, I can't find good code-highlighting tools for blogger/clojure. Any suggestions? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Cleaner solution, anyone?
Yes, sorry, I didn't mean reduce, I meant reductions. - James On 1 May 2014 21:35, Guru Devanla grd...@gmail.com wrote: Reduce is not lazy, correct? Will it ever return for drop-while to execute. The problem here is not knowing how many iterations make up the sum, isnt? On Thu, May 1, 2014 at 1:13 PM, James Reeves ja...@booleanknot.comwrote: I'd suggest generating an intermediate seq with the summed time: (defn state [time] (- (thomsons-lamp) (reduce (fn [[_ t] [onoff dur]] [onoff (+ t dur)])) (drop-while (fn [[_ t]] ( t time))) first second)) - James On 1 May 2014 20:06, Divyansh Prakash divyanshprakas...@gmail.comwrote: Hey! I wrote a blog post discussing Thomson's Paradox, and simulated it in Clojure- http://pizzaforthought.blogspot.in/2014/05/and-infinity-beyond.html The *state* function defined towards the end is not very functional. Could someone guide me towards a cleaner approach? Also, I can't find good code-highlighting tools for blogger/clojure. Any suggestions? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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.
Re: Cleaner solution, anyone?
I wrote a blog post discussing Thomson's Paradox, and simulated it in Clojure- http://pizzaforthought.blogspot.in/2014/05/and-infinity-beyond.html The state function defined towards the end is not very functional. Could someone guide me towards a cleaner approach? Here's an option: (defn state [t] (reduce (fn [[v0 t0] [v1 dt]] (cond (zero? dt) (reduced unknown) ( t0 t) (reduced v0) :else [v1 (+ t0 dt)])) [true 0] (thomsons-lamp))) cljs.user= (state 0) true cljs.user= (state 0.99) true cljs.user= (state 1) false cljs.user= (state 1.49) false cljs.user= (state 1.5) true cljs.user= (state 1.) true cljs.user= (state 1.9) false cljs.user= (state 2) unknown cljs.user= --Steve -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Datascript and React.js for a Clojure web app
very coolI've cloned it to play around with it. It runs locally just fine, but when deploying to heroku I get a 404 not found after trying to login or sign up. is there anything else that needs to be in order to deploy it to heroku? On Wednesday, April 30, 2014 8:32:24 AM UTC-5, Gijs S. wrote: Hi all, I've released a Clojure web application. It includes a front-end using DataScript and React.js in ClojureScript. More details here: http://thegeez.net/2014/04/30/datascript_clojure_web_app.html The code is on github: https://github.com/thegeez/clj-crud Demo on heroku: http://clj-crud.herokuapp.com/ Best regards, Gijs -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: clojure code to java
Hi Julio, There is a difference between `converting Clojure code to Java code` and `compiling Clojure into .class files`. Can you clarify which one are you trying to accomplish? Also if you can provide some more context we might be able to make better suggestions. On Thu, May 1, 2014 at 4:56 AM, Andy Fingerhut andy.finger...@gmail.comwrote: Leiningen can convert Clojure source code to Java .class files (compiled Java byte code, not Java source code), with the help of the Clojure compiler. I don't know of a way Leiningen can convert that to Java source code, unless there is some feature of Leiningen I haven't learned about yet, or some plugin that does that. There are several programs out there, some open source, some commercial, that can decompile Java byte code files into Java source code, of varying quality. I have used a trial version of the AndroChef Java Decompiler 1.0 a few times in the past, and found its results better than one other open source Java decompiler I tried (I don't remember what that was called right now). http://www.neshkov.com/ac_decompiler.html Andy On Wed, Apr 30, 2014 at 7:05 PM, Julio Berina juliober...@gmail.comwrote: I've been programming a bit in Clojure, and in my opinion it's like making Java programs without typing long Java because of it running on the JVM. However, I wanna be able to convert my Clojure code to Java code. I know Leiningen can do that, but I am really clueless at this point, and I don't know what other programs out there will convert Clojure to Java .class file. Does anyone have any tips? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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. -- Kind Regards, Atamert Ölçgen -+- --+ +++ www.muhuk.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: Managing State Changes, using Component
I am not an expert on Component. But AFAIK it is not for managing mutable
state but for assembling and configuring components, that might or might
not be mutable themselves, in an immutable fashion.
However from what I can understand, your component-a has an atom, like:
(-component-a (atom something))
Which should be OK. I mean it shouldn't matter from which path you are
accessing this atom.
Can you share the constructor/definition of the components?
Also, have you tried confirming that only one :a is instantiated?
On Wed, Apr 30, 2014 at 9:13 PM, Timothy Washington twash...@gmail.comwrote:
Hi all,
I'm having a weird state problem with
Componenthttps://github.com/stuartsierra/component.
Let's say I have a system component, like in fig.1. Starting / stopping and
loading state is fine.
However, let's say I have 2 other components (:updater , :reader) that use
component :a. This is the problem that occurs.
1. When *:updater*, modifies an atom in *:a*, that change appears in
path [*:core :a*], not path [*:updater :a*] or [*:a*].
2. Because of the abouve, when *:reader* goes to it's local path [
*:reader :a*] to read that change, it doesn't see those modifications.
3. Using this scheme, *:a* is duplicated 4 times, in the system map.
However, the modifications only appear in path [*:core :a*]. Thus
:reader is unable to access it (it's local [*:a*] is unchanged).
(def system-components [:a :updater :reader])
(defrecord Core [env] component/Lifecycle
(start [this] ...)
(stop [this] ...))
(defn component-core [env]
(component/system-map
:a (component/using
(ca/component-a env)
{})
:updater (component/using
(cs/component-updater env)
{:a :a})
:reader(component/using
(cs/component-reader env)
{:a :a})
:core (component/using
(map-Foobar {:env env})
{:a :a
:updater :updater
:reader :reader })))
*fig.1 *
I was hoping to use Component to manage all internal application state.
But maybe it's not designed for this use case (state changes between
components). I imagine that immutability is preventing all those duplicates
from seeing the modifications. However, in this case I do need an update to
:a in one component, to be accessed by another component.
Any suggestions on patterns here? I'm also looking at
component/update-systemhttps://github.com/stuartsierra/component/blob/master/src/com/stuartsierra/component.clj#L116.
But again, I don't have access to the core *system* var, from within my
components.
Any insights appreciated
Tim Washington
Interruptsoftware.com http://interruptsoftware.com
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Atamert Ölçgen
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www.muhuk.com
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twitter-api and streaming calls
Hi, I'm playing with twitter-api (https://github.com/adamwynne/twitter-api) and streaming calls. I've also tried twitter-streaming-client (https://github.com/mccraigmccraig/twitter-streaming-client). With the examples each of those provide, I'm getting *EOFException: JSON error (end-of-file)* errors. I can of course post more details, but I'm hoping someone else might have come across this and be able to give me a pointer as to what's happening. I wonder if perhaps something's changed in the Twitter API recently to break things. __ Simon -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: twitter-api and streaming calls
I fixed this in my implementation about a week ago, have a look: Basically, JSON might be split across multiple chunks. You can assemble it back with a PipedReader/Writer and then use cheshire's lazy seq. https://github.com/gtrak/dashboard/blob/master/src/gtrak/dashboard/twitter.clj#L94 On Thu, May 1, 2014 at 6:59 PM, Simon Katz nomisk...@gmail.com wrote: Hi, I'm playing with twitter-api (https://github.com/adamwynne/twitter-api) and streaming calls. I've also tried twitter-streaming-client ( https://github.com/mccraigmccraig/twitter-streaming-client). With the examples each of those provide, I'm getting *EOFException: JSON error (end-of-file)* errors. I can of course post more details, but I'm hoping someone else might have come across this and be able to give me a pointer as to what's happening. I wonder if perhaps something's changed in the Twitter API recently to break things. __ Simon -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Clojure Course on Coursera
What happened with this? I would really love to make a Clojure course in Coursera... Still none :( Am Donnerstag, 20. September 2012 14:43:52 UTC+2 schrieb Belun: It would be really interesting to see a course about Clojure on coursera.org, where a Scala and functional programming course just started https://class.coursera.org/course/progfun -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Clojure Course on Coursera
There's this one here: http://mooc.cs.helsinki.fi/clojure, which is run by the University of Helsinki. I haven't done the course but I heard good things about it. On 2 May 2014 11:21, Ivan Schuetz ivanschu...@gmail.com wrote: What happened with this? I would really love to make a Clojure course in Coursera... Still none :( Am Donnerstag, 20. September 2012 14:43:52 UTC+2 schrieb Belun: It would be really interesting to see a course about Clojure on coursera.org, where a Scala and functional programming course just started https://class.coursera.org/course/progfun -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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.
What's clojure killer app? I don't see any.
Paulo, I understand your concerns, you are basically taking a bet in choosing Clojure and you want some confirmation that you will not be wasting time/money during the process. Please watch Jay Fields' talk on this topic. I think he presents the upsides and downsides of his journey very well. One remark is that it was very tiring, it has been like having a second job (he remarks that he luckily didn't have any children during the process IIRC) but it was worth it in the end. http://yow.eventer.com/yow-2013-1080/lessons-learned-from-adopting-clojure-by-jey-fields-1397 Ustun -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Hosting Providers
As Richard said most places that run Java, will run your Clojure. Google App Engine and Engine Yard appear to take a WAR file. lein ring uberwar (in your project dir) While heroku pushes your code to the server and then does its magic. git push git of project_name If you run on your own servers most people do one of two things (from what I see): 1. They are familiar with Java app servers and so they use a WAR file 2. They do not have a dependecy on java servers and they create an uberjar, fronted by another server. In the case of #2: lein ring uberjar (in your project dir) You then push up the uberjar to your server and put a proxy in front of it such as nginx. This is what I do on digital ocean VPS for more trivial apps. On Wednesday, April 30, 2014 6:27:05 AM UTC-4, Adrian Mowat wrote: Hi Richard Sorry for the delay. We'll check that out! Having said that, my inclination would be to avoid the compile step if we can and just run on top of the leiningen project (e.e. analogous to ruby apps). Putting Engine Yard aside, it raises an interesting question so I am wondering what other people on this list do. Do you compile your code or just run from the sources as you would in development? Many Thanks Adrian On Thu, Apr 24, 2014 at 2:51 PM, Richard Watson rwa...@engineyard.comjavascript: wrote: Hi Adrian, You don't have far to look ... Engine Yard now supports Java, and by extension, Clojure. If you can package up your Clojure app into a WAR file (using Leiningen's 'lein ring uberwar', for example) you can deploy it onto a Jetty or Tomcat server in an Engine Yard Java environment. This is a post I published recently on the Engine Yard blog describing the components of a basic Clojure Web app and how to deploy onto Engine Yard. https://blog.engineyard.com/2014/clojure-web-app-engine-yard I'm Richard, Product Manager for Java at Engine Yard. Please, drop me a line if you're interested in trying your Clojure code on Engine Yard, or just go ahead and try it out at http://ui.engineyard.com . We're offering a $100 credit to try out the Java platform and give us feedback. Richard. On Friday, April 18, 2014 11:36:05 AM UTC+1, Adrian Mowat wrote: Hi Everyone, I am currently looking at hosting providers for Clojure for my company. We are using Engine Yard for our Ruby applications and we looking for something comparable in terms of providing an easy path to getting started and easy ongoing maintenance (they allow you to apply OS patches with zero downtime by simply clicking a button for example). We also need 24/7 support for server issues. I was wondering if anyone here could share any experiences and/or recommendations? Many Thanks Adrian -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: 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 javascript: 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/rdV-idmmGh0/unsubscribe. To unsubscribe from this group and all its topics, send an email to clojure+u...@googlegroups.com javascript:. 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.
clojure.test parameterized tests
I have a number of tests that I would like to run against different implementations of a protocol. In clojure.test there doesn't appear to be a way to parameterize a test over the implementations. Is there a good way to do this? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: twitter-api and streaming calls
I had the same (very frustrating issue) recently. I ended up just using the official twitter API which is written in Java https://github.com/twitter/hbc On Thursday, May 1, 2014 6:59:04 PM UTC-4, Simon Katz wrote: Hi, I'm playing with twitter-api (https://github.com/adamwynne/twitter-api) and streaming calls. I've also tried twitter-streaming-client ( https://github.com/mccraigmccraig/twitter-streaming-client). With the examples each of those provide, I'm getting *EOFException: JSON error (end-of-file)* errors. I can of course post more details, but I'm hoping someone else might have come across this and be able to give me a pointer as to what's happening. I wonder if perhaps something's changed in the Twitter API recently to break things. __ Simon -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: twitter-api and streaming calls
Oh, nice, I was concerned about reconnections and backfill issues, if I have to change anything substantial again I'll reimplement on top of the java api that provides this out of the box. On Thu, May 1, 2014 at 9:13 PM, Andrew Fitzgerald andrewcfitzger...@gmail.com wrote: I had the same (very frustrating issue) recently. I ended up just using the official twitter API which is written in Java https://github.com/twitter/hbc On Thursday, May 1, 2014 6:59:04 PM UTC-4, Simon Katz wrote: Hi, I'm playing with twitter-api (https://github.com/adamwynne/twitter-api) and streaming calls. I've also tried twitter-streaming-client ( https://github.com/mccraigmccraig/twitter-streaming-client). With the examples each of those provide, I'm getting *EOFException: JSON error (end-of-file)* errors. I can of course post more details, but I'm hoping someone else might have come across this and be able to give me a pointer as to what's happening. I wonder if perhaps something's changed in the Twitter API recently to break things. __ Simon -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: how to convert current time to format i need?
https://github.com/mbossenbroek/simple-time (require '[simple-time.core :as t]) (t/format (t/now) dd:MM: HH:mm:ss) = 01:05:2014 21:16:27 On Tuesday, April 29, 2014 5:03:01 AM UTC-5, sindhu hosamane wrote: How to convert the current date and time to the format i need ? for example i retrieve current time using (l/local-now) which outputs #DateTime 2014-04-29T11:16:02.420+02:00 i want the above output to be converted to format dd:MM: HH:mm:ss Should i define my own formatter like below (def custom-formatter (f/formatter dd:MM: HH:mm:ss)) But then how to convert it ? Any advice or help would be appreciated .!! -- Sindhu -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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.
how can I print the function name as parameter?
Hi guys, I want to write a function (show) that will receive a function as parameter. How can print the original name of that function? I've tried with meta, resolve, name but none of them give me the result I want. The goal is that I want to write a function that print the name of the function that will be executed then the result of that execution. If there's a better way to achieve this I'll appreciate your suggestions. Thanks! Erlis (defn show [f sol] (print (meta f))) (defn -main [] (show elementary/nothing-but-the-truth true)) -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Hosting Providers
One thing to keep in mind since he's using Datomic - there is currently no way to restrict access to the transactor, so it needs to be run behind a firewall. This can be done easily on AWS by creating a VPC where only the peer is exposed to the net. Outside of AWS, you're pretty much on your own. This can be done on most hosting platforms, you just have to figure out the configuration for yourself. I'm not sure about Heroku - because of the way they build their dynos, I'm not sure how or even if a transactor could be deployed there. It would probably be a good idea to start collecting info on deploying Datomic to different platforms as people try it and find what works (or doesn't). Maybe a community wiki or something. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Proposing a new Clojure documentation system (in Clojure)
On Apr 30, 2014, at 4:08 PM, Val Waeselynck val.vval...@gmail.com wrote: As for what Gregg and Sean objected - that Clojure code is self-sufficient as documenting itself - I have to simply disagree. That is NOT what I said. Please go back and read my response more carefully. Anyway, I think speculating about the necessity of such a documentation system is not the best thing to do - I suggest we give it a try, and then everyone can decide for themselves if it's useful. After all, it's in Clojure, so this should not take too long, right ? ;) Go ahead and build something and see if people like it. That's probably a better approach than trying to discuss it anyway. Sean Corfield -- (904) 302-SEAN An Architect's View -- http://corfield.org/ Perfection is the enemy of the good. -- Gustave Flaubert, French realist novelist (1821-1880) signature.asc Description: Message signed with OpenPGP using GPGMail
Re: What's clojure killer app? I don't see any.
Really thanks. Great talk. On 1 May 2014 21:21, Ustun Ozgur ustunoz...@gmail.com wrote: Paulo, I understand your concerns, you are basically taking a bet in choosing Clojure and you want some confirmation that you will not be wasting time/money during the process. Please watch Jay Fields' talk on this topic. I think he presents the upsides and downsides of his journey very well. One remark is that it was very tiring, it has been like having a second job (he remarks that he luckily didn't have any children during the process IIRC) but it was worth it in the end. http://yow.eventer.com/yow-2013-1080/lessons-learned-from-adopting-clojure-by-jey-fields-1397 Ustun -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: core.async and Joy of Clojure
On Monday, April 28, 2014 9:42:06 AM UTC-5, gamma235 wrote: I heard that Joy of Clojure would be adding a lot in the 2nd edition, including a section on core.logic; is core.async also on that list? I bought the pre-release + final release *Joy of Clojure* 2nd ed. package, so I have the v10 prerelease version. This seems to be the final version before the regular release. I did a search through the v10 pdf, and found no instances of core.async, and the string async appeared only in the word asynchronous. By contrast, there are indeed many instances of core.logic. The eBook version is supposed to come out in mid-May, and the print and other electronic versions some time after that. The last email that I got says that the book is now in production where it will get a thorough polishing before publication. So it sounds as if the authors and publisher are only fixing typos and doing other small changes at this point, and that core.async will not be discussed in the book. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Observing the same non-dynamic var in two different states
Thanks, defonce seems to solve the problem. As there doesn't seem to be a logical explanation for why the vartest.test-data namespace is evaluated twice I filed this as a leiningen issue: https://github.com/technomancy/leiningen/issues/1519 ::Antti:: -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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.
