Re: In core structure editor, anyone?

Some Noobian critique: Thread-local bindings also allow us to monkey-patch for the span of a local > context. Say we have a function *cat* which calls a function stored in a > Var; if a function *goat* is root-bound to the Var, then *cat* will > normally call *goat*; however, if we call *cat* in a

Re: literate snake

I don't know much about functional programming, but I believe you're supposed to think about functions as black boxes. Put something in, get something out. Take this function, for example: (defn snake-head [] (first (@snake :body))) (We're cheating on the put something in part!) Perhaps it'd

Re: [Discuss] Contribs with dependencies

How 'bout something like Ruby Gems? Having to svn and build the clojure-contrib sources is a hassle for some of us. On Thu, Apr 16, 2009 at 7:41 AM, Stu Hood wrote: > I agree. I think the "breaking into modules" approach is the only scalable > solution. > > Someone else mentioned that clojure-co

Re: The Path to 1.0

I vote for 1.0 as soon as possible. Seems stable to me. I'm working on a chat application and when we moved to fully lazy sequences, still none of my code broke. I vote no on making contrib the "Standard Library." The Java Standard Library is large enough. I would like contrib to be easier to

Re: The Path to 1.0

Well, perhaps if str-utils becomes the universal standard for string operations, it would be rolled into Clojure come 2.0? On Sat, Apr 18, 2009 at 2:58 PM, Konrad Hinsen wrote: > > On 18.04.2009, at 12:15, John Newman wrote: > > > 2) One way to maintain Clojure's flexibility

Re: The Path to 1.0

> I do not agree with John Newman that the Java standard library > should be the Clojure standard library. > I'm not saying that. I'm saying that: 1) Requiring Java's standard library on every system is unfortunate enough -- it's too big for some of the smaller de

Re: What is Contrib?

I'm a novice, myself, but Clojure got me reading up on Scheme and, what about the PLaneT thing (require (planet blah ... (where dependencies are automatically pulled from a repository?) Maybe it's not applicable here, but I thought it was pretty neat. On Wed, May 13, 2009 at 11:41 AM, Konrad Hi

Re: Clojure at JavaOne

I believe it was the presentation you gave on the ants simulation, where you updated the program while it was running. I'm not sure if the other languages in the shootout can do that, but I thought that was pretty awesome. I think a display of building an application while it's running in front o

Re: 3d viewer

Including import statements at the top would make it easier for me to try it out. Thanks, On Wed, May 20, 2009 at 4:09 AM, kyle smith wrote: > > I have uploaded 3d-viewer.clj to the files section. If anyone finds > it useful, I would appreciate some feedback. > > > -- John --~--~-~

Re: 3d viewer

Thanks. On my setup I had to add '(javax.swing JFrame) too. Pretty neat. On Wed, May 20, 2009 at 3:12 PM, kyle smith wrote: > > Import statements added. Example usage: > > (def coords [[0 0 0] [1 1 1] [2 2 2]]);etc > (g3d coords) > > That should pop open the viewer. Left click and drag to ro

Re: Clojure at JavaOne

Speaking of "walking/filtering code," what about walking _actual_ code? The only thing off the top of my mind would be an example of, say, a "Hello World" function, but with the code represented as a JTree. Say, in the function (pr (.toLowerCase "Hello World")), you'd see .toLowerCase as a node.

Re: Poll for a new name for clojure eclipse plugin 'clojure-dev'

How 'bout eclj? On Tue, Jun 23, 2009 at 9:01 PM, Meikel Brandmeyer wrote: > Hi, > > Am 23.06.2009 um 18:00 schrieb Laurent PETIT: > > clojure-eclipse >> >> This one has the merit to clearly state that it relates to clojure and >> eclipse (even more cleary than eclojure). Looks like an interesti

Re: ants.clj and render thread starvation

I think I remember running the ants.clj demo on my netbook and it running normally. I'll check again this evening. On Tue, Jun 30, 2009 at 12:40 PM, Daniel B Lucraft wrote: > > I didn't think it was possible for the render agent to be interrupted > like that. Isn't the point of the MVCC system

Re: ants.clj and render thread starvation

I'm on an hp mini. It runs on an Atom processor. I ran ants.clj and it was frozen for a little while. Then after maybe 30 seconds it looked normal -- a tick every second or half second or so. I'm running a lot of applications though. On Ubuntu here too. On Sun, Jul 5, 2009 at 11:17 PM, B Smit

Website down?

I've been trying to get to Clojure.org for a few days now and I can't get to it from my military network, nor my civilian satellite connection (I'm deployed). I can't ping it though (resolves to 75.126.104.177). Is anyone else having the same problem? -- John --~--~---

Re: Website down?

Yea, false alarm. I guess my network at work is just jacked up. On Mon, Jul 27, 2009 at 2:21 PM, Glen Stampoultzis wrote: > Seems to be up. > http://downforeveryoneorjustme.com/clojure.org > <http://downforeveryoneorjustme.com/clojure.org> > > 2009/7/27 John Newman >

Re: gen-class & bytecode for method implementation

I'm new to Clojure so bare with me, but I'm trying to figure out what it does... Is it doing something like this: user=> (apply pr (.split #"\n" (str "hello\n" "world\n"))) "hello" "world"nil Or do you want those concatenated? Or is that too slow? On Tue, Jul 28, 2009 at 12:07 AM, Mark Addlema

Re: gen-class & bytecode for method implementation

Clojure! Not *'clothier.'* :) On Tue, Jul 28, 2009 at 5:05 AM, wlr wrote: > > On Jul 27, 8:25 pm, John Newman wrote: > > I'm new to Clojure so bare with me, > > Sorry, can't resist... you must be seeking

Re: Package manager proposal

Meikel said, > > I think, "clojure context" is underestimating things. The high > integration > of external Java libraries makes it necessary that such dependencies > can be handled in the same way. > > On the other hand, will this package system be able to stradle and accommodate future platforms

Re: Transient Data Structures

I'm a noob, so this is probably a dumb question but, how does this work with closures? Can transients be closed over? Like, (defn make-transient-counter [init-val] > (let [acounter (transient [init-val])] > (fn [add-val] (assoc! acounter 0 (+ add-val (nth acounter 0)) > Is that possib

Clojure as a First Language

First of all, sorry that this post is so long-winded. I don't have a blog, so this seems like the best place to put to words something I've been thinking about for a while. One subject I haven't seen discussed is that of Clojure as a "first language." By that I mean, the programming language tha

Re: Transient Data Structures

> > (def transhashmap (transient {}) (assoc transhashmap "a" 1) (assoc transhashmap "b" 2) etc Isn't that what Rich was talking about, about not bashing in place? On Fri, Aug 7, 2009 at 6:45 PM, Patrick Sullivan < wizardofwestma...@gmail.com> wrote: > > I don't have the EXACT code handy to c

Re: Clojure as a First Language

Thanks for all the responses, both on the list and off. Many good counter-arguments were given, but I think the most compelling one was the issue of Java-interop. Without a doubt, at least some knowledge of Java is necessary to really do much of anything interesting. It's unfortunate that such a

Re: Package manager proposal

I like this idea too, because if you end up wanting to port this package manager to CLR, Parrot, or JS, you're less tied down to the package formats of specific platforms. Heck, even if Clojure was ported to Ruby (not that there'd be any point to do that), you could wrap the Gems framework. On Sa

Re: A funny thing happened on the way to running Clojure

In general, when writing documentation about software, you have to ask your self "what if the user downloaded 0.9?" or "what if the user downloaded 1.1?" How do you know what other docs someone might have written, that might have led the user to have downloaded one version or another? So the doc'

Re: Improving the documentation

I believe http://en.wikibooks.org/wiki/Clojure_Programming is the intended central location for contributing documentation. I've heard complaints about it's openness though. Is it a pain to try to contribute there? On Tue, Aug 18, 2009 at 4:52 AM, Seth wrote: > > I'm also very interested in a

Re: Another Clojure Box - Version 1.4

I like Scite but I also use Linux. Any guidance on what steps I would need to take to port just the Scite part of ACV to linux? What specific config files? Thanks, On Fri, Sep 4, 2009 at 7:30 PM, Shantanu Kumar wrote: > > Not sure if I am the only one - I was not able to make the copy-to- > RE

Re: Another Clojure Box - Version 1.4

ompile it. > If you don't want to compile it I can send the properties files in > order to use the lisp lexer with your standard scite version. > > > Let me know what you want! > > On Sep 4, 12:06 pm, John Newman wrote: > > I like Scite but I also use Linux. > >

Distributed b-tree

Hello All, I thought this might interest the group: http://highscalability.com/paper-practical-scalable-distributed-b-tree An interesting bit: *Moreover, our algorithm is conceptually simple: we use transactions to manipulate B-tree nodes so that clients need not use complicated concurrency and l

Re: Single method interface proxies

I agree though, proxy is off-putting. It just looks so much less clean than the rest of Clojure. On Fri, Sep 18, 2009 at 6:43 PM, CuppoJava wrote: > > Hi Nikolay, > In my opinion it's hard to reduce the verbosity of proxy without > sacrificing some of its generality. For my own code I just made

Re: Managing Clojure project files

Sweet! I'd like to try it out. Wondering, though, might blogspot have a feature of some sort to render the code in something more palatable? I'd like to review it but it's a pain. Thanks, On 9/22/09, Emeka wrote: > Hello All, > > Please make out time and check the below link. And if you cons

Re: Getting REPL transcript

I'm still learning, myself, so I could be wrong, but you might be able to use clojure.contrib.server-socket and tweak it's binding for *in*, *out*, and *err*, like another PushbackInputStream for *in* and copy the lines to a file before sending it into the repl. Or use a pipe perhaps? -- John -

Re: immutable defs?

>From what I've seen, people never redef vars in source code. In general, you shouldn't have to worry about users of your code redefing your vars as it's against common convention, non-idiomatic. The exception, as Stuart Sierra said, is when writing interactively from the REPL, where you'd like t

Re: immutable defs?

Also, I'm not sure if your understanding of "binding" is correct. because within any lexical scope inside a function, I can > pretty much count on my bindings to never change. > binding is actually like a lexical re-def: user=> (def x 1) #'user/x user=> (binding [x 2] (pr x) (binding [x 3] (pr

Re: Load Bitmap

I don't know much about it, but Yann N. Dauphin's Mona Lisa program might use what you're looking for: Clojure: Genetic Mona Lisa problem in 250 beautiful lines Here's the relevant code: > >1. ; grab-pixe

Re: Load Bitmap

tHeight image) pixels (make-array (Integer/TYPE) (* w h))] (.grabPixels (PixelGrabber. image 0 0 w h pixels 0 w)) pixels)) On Sun, Oct 4, 2009 at 3:52 AM, John Newman wrote: > I don't know much about it, but Yann N. Dauphin's Mona Lisa program might > use what you'

Re: Seq wrappers for arrays can morph

When someone knowingly dips into arrays, though, aren't doing so because they require java's semantics? For speed, interop, or whatever? We want to champion functional programming, but on the other hand we want to preserve the smooth java-interop use-cases. Not an easy balancing act, I suppose.

Re: Clojure as a first programming language?

I actually posted on this subject back in August. http://groups.google.com/group/clojure/browse_thread/thread/7146112187d8468c/89ad67c6b7ec3b5c?hl=en&lnk=gst&q=clojure+as+a+first+language# Seems like Java is the biggest bar-to-entry for programming novices learning Clojure at this time. On Tue,

Re: Clojure development environments

+1 for Waterfront I was hoping it would be what IDLE is to Python. On Fri, Dec 4, 2009 at 8:43 AM, Wilson MacGyver wrote: > I want to add another vote for using La Clojure plugin for IntelliJ. > > I use it on both OSX and windows. works pretty well for me. > > -- > Omnem crede diem tibi diluxis

Re: How to do functional programming

So I've been hammocking it up recently on this subject. Just to add more philosophical perspective - you could look at the universe in two different ways: from the _inside_, where a thing subjectively experiences the flow of time, as the world mutates around it; and from the _outside_, where object

Re: Two suggestions re: core.spec, `ns`, and clojure 1.9alpha11

I'd prefer getting rid of the symbol option. Some kind of deprecation warning for a version or two might be an idea though. On Sat, Aug 20, 2016, 10:51 PM Sean Corfield wrote: > Or keep the stricter compiler and: > > 1. People who want to port to clojurescript will incur exactly the same > cost

Re: Contribute Specter to Clojure core?

I think the path navigator DSL feels slightly un-Clojurey. But other than that, I think Specter is pure magic and Nathan is right that editing deeply nested data structures in Clojure is a point of deficiency, especially for people coming from mutable languages/data structures. To that extent, I th

Re: Contribute Specter to Clojure core?

gt; > > On Mar 3, 2017 6:27 PM, "John Newman" wrote: > > I think the path navigator DSL feels slightly un-Clojurey. But other than > that, I think Specter is pure magic and Nathan is right that editing deeply > nested data structures in Clojure is a point of deficiency,

Re: What makes Clojure Clojure?

Yeah, only Rich can really answer that question, right? :) But for me, Clojure is increasingly becoming cljc. When a library advertises compatibility in both clj and cljs, it just looks shinier to me. Feels like a trend for Clojure libraries in general. And if agents and STM were on cljs, I'd proba

Re: Contribute Specter to Clojure core?

Okay, let's call it a Context Specific Vocabulary (CSV) ;) Every function is at least a mini DSL, IMO. And as promising as Spec sounds, I still haven't trained up on it because of the size of the new vocabulary (or DSL or whatever you want to call it) it introduces. Adding semantics is expensive f

Re: Contribute Specter to Clojure core?

The "language" Specter introduces "specific"ally navigates the "domain" of Clojure data structures. Regexes also provide a DSL that navigate or operate over the string/text domain and that's often considered a large, generic, unstructured domain. What matters is the semantic surface area the librar

Re: Doc strings for complex cases?

Way back when - when Rich was fielding suggestions for how to do doc strings - I made the offhand comment that every arity could have it's own doc string. He didn't like the idea back then. Doubtful he will now. I'm glad he went the route he did. I believe the discussion took place on this mail l

Re: [core.spec] Stricter map validations?

Great conversation! I'm still catching up on Spec, but it seems like there's a correlation here to type systems. Type systems can introduce a certain kind of technical debt - type debt? It seems that leaving maps open here is also attempting to avoid that sort of type debt - parochial maps that

Re: Immutable names of things?

This might be a step towards a more clojury way: http://blog.datomic.com/2012/10/codeq.html John On Mon, Dec 11, 2017 at 7:53 PM, Didier wrote: > I'll have a look at all these other projects, its very interesting. Unison > seems to embody the spirit or Richs talk about never changing anything t

Re: Immutable names of things?

What if the code segments were hashed by zipper coordinates instead of line-column location? I like this idea of structurally navigating the code as an AST of EDN :) John On Mon, Dec 11, 2017 at 7:55 PM, John Newman wrote: > This might be a step towards a more clojury way: h

Re: Simulations in Clojure/Clojurescript

You might want to look into Chris Granger's work on component entity systems in clojurescript: http://www.chris-granger.com/2012/12/11/anatomy-of-a-knockout/ Light Table went on to have a similar component-entity layout internally. On Jan 10, 2018 6:12 PM, "Michael Nardell" wrote: > Greetings :

Re: what does future do after fn finish ?

Agents manage a pool of threads for you. Try doing it without the future call and see if that works (unless you're trying to do something else). John On Wed, Jan 31, 2018 at 7:31 PM, Jacek Grzebyta wrote: > Thanks a lot. I will check it tomorrow. > > J > > On 1 Feb 2018 12:12 a.m., "Justin Smit

Re: what does future do after fn finish ?

If > parallelization leads to complex coordination needs, core.async can help > too. > > On Wed, Jan 31, 2018 at 5:18 PM John Newman wrote: > >> Agents manage a pool of threads for you. Try doing it without the future >> call and see if that works (unless you're

Re: what does future do after fn finish ?

Ah, he's using one agent, I see. On Jan 31, 2018 9:15 PM, "John Newman" wrote: > Multiple sen-doffs to one agent will serialize it's calls, but spawning > agents on each new task will spawn threads on a bounded thread pool, I > believe. > > On Jan 31,

Re: [ANN] Schism, a set of CRDTs for Clojure and ClojureScript

Wow, this is really cool! Could you describe how one might go about using this to implement, say, a crdt chat room using maps and sets? Can I for instance just push crdts between clients in a serverless fashion? Perhaps some examples would be instructive, but I've been hoping for something just l

Re: [ANN] Schism, a set of CRDTs for Clojure and ClojureScript

Alex, yeah that explains it for me. I'll probably want to use a fully connected address space, via a mesh or a hub and spoke topology, that I fully manage - so this is the perfect level of abstraction for me. I'd like to see that ZQ implementation though. So, to be clear, if node A sends schism-ma

Re: [ANN] clj-new -- creating new Clojure projects using the clj CLI

These are nice ideas... Sort of like nmp. But you could implement this yourself as a lib and stick it behind a `clj -A:install ...` tool. @dominicm (on clojurians.slack) has build an "injector" tool into pack, which you could reimplement into something that you're describing: https://github.com/ju

Re: Efficient Predicate Dispatch [was ANN: Logos v0.6]

In order to answer a SO question I ended up whipping up a quick and dirty implementation of predicate dispatch here . (unless I'm misunderstanding the definition of "predicate

Re: Efficient Predicate Dispatch [was ANN: Logos v0.6]

Update the example to leverage isa? hierarchies and allow prefer-poly, a la prefer-method: https://stackoverflow.com/questions/53329709/dispatching-function-calls-on-different-formats-of-maps/53354967#53354967 V/r John On Saturday, November 17, 2018 at 5:09:09 PM UTC-5, John Newman wrote

[ANN] dispacio

dispacio is an experimental, simple, predicate stack dispatch system. Predicates are tested in the order they are defined and the first truthy match wins. Features being worked on: - similar interface to `defmethod` - `isa?` hierarchies, similar to `defmethod` - `prefer` a la `prefer-method` - d

Understanding tap

Not sure why two wouldn't compose. You should probably wrap values in namespaced maps and dispatch with multimethods for your add-tap handlers. You could probably do pub sub pretty easy over that. But I'd like to see more examples with tap too. What alternative design were you thinking of? --

Re: Any way to replace function body?

dispacio has a shadow-extend-like capability: (defp assoc string? [s i c] (str (subs s 0 i) c (subs s (inc i And then (assoc "abc" 2 'x);#_=> "abx" Using alter-var-root in dispacio correctly would prevent var replacement warnings I

Re: The magic of Lisps

I like Eric Normand's take here: https://lispcast.com/magical-leverage-languages/ On Sun, Apr 28, 2019 at 9:46 AM wrote: > I agree Erik, macros and the dsl idea are edge cases imho. Having written > clojure for 4 years now (and with 30 as a professional developer) I’ve only > written a few macro

Re: [ANN] cpython bindings for clojure

👏 On Wed, Jun 5, 2019 at 12:59 PM Jonah Benton wrote: > Wow, that is incredibly cool. Eager to check it out. > > > On Wed, Jun 5, 2019, 12:41 PM Chris Nuernberger > wrote: > >> Good morning Clojurians, >> >> About 2 months ago during a talk about the tech.ml systems the point was >> made th

Re: [ANN] proxy-plus: Faster and more usable replacement for "proxy"

Bravo 👏 Are there any differences in behavior to be aware of? AOT, Graal, consuming proxy+ classes from vanilla clojure classes? On Mon, Jan 13, 2020, 11:47 AM Nathan Marz wrote: > proxy+ is a replacement for Clojure's proxy that's faster and more usable. > proxy has a strange implementatio

Re: misunderstanding collection

Don't forget destructuring: (for [[a b c] signal] (map (partial reduce +) [a b c])) and, ((fn [[[a b c][d e f]]] (map (partial reduce +) [a b c d e f])) signal) While messing around with that, I was wondering if there were some function that allowed you to destructure on-demand. Like, =>

Re: misunderstanding collection

A reader macro for destructuring might be nifty, like #[...]. So you could do things like: (#(map (partial reduce +) #a b c][d e f]]] %]) signal) Not sure if that'd be the right syntax, but you get the point. On Sat, Aug 28, 2010 at 12:08 PM, John Newman wrote: > Don&

Re: misunderstanding collection

ohn On Sat, Aug 28, 2010 at 2:55 PM, Mike Meyer wrote: > On Sat, 28 Aug 2010 12:23:04 -0400 > John Newman wrote: > >> A reader macro for destructuring might be nifty, like #[...]. > > I don't think so. > > But first, we already have an "on-demand" destr

Re: Simple things should be simple

(use '[clojure.contrib.server-socket :only (create-server)] '[clojure.contrib.duck-streams :only (read-lines)]) (create-server 8080 (fn [in out] (when-not (empty? (read-lines in)) (spit out "Hello, World!\n" 4/0/0 John On Thu, Sep 9, 2010 at 9:21 PM, Matt wrote: >> You cannot deplo

Re: Simple things should be simple

Finally, > cat - > /usr/local/www/apache22/cgi-bin/hello-world > > #!/usr/local/bin/clj > > (println "Content-type: text/plain\n") > (println "Hello, World!") > ^D I can start using Clojure again :) John -- You received this message because you are subscribed to the Google Groups "Clojure" gro

http-client and ignoring ssl errors

Hello All, I am trying to add some functionality to http-client. Basically, I need the ability to do get requests on a server while ignoring ssl errors. Once I figure out how to get it working, I'll put it up on github and people can pull it if they'd like. I am working from a fork of http-clie

Re: http-client and ignoring ssl errors

Maybe I should just build the SSL logic into http-client.core/request and have request instantiate a different DefaultHttpClient based on the value of :noauth in the request map? Will try when I get home. John On Thu, Sep 1, 2011 at 4:31 PM, John Newman wrote: > Hello All, > > I am