Re: Best IDE
Greetings. On 2012 Jan 20, at 01:26, Mark Nutter wrote: On Thu, Jan 19, 2012 at 11:42 AM, David Brunell quantal...@gmail.com wrote: How long did it take you to get comfortable with paredit? I keep getting frustrated and going back to manually matching parens. I had the same experience for a while, but then I realized I just had to remember 3 things: Paredit (I've just looked at the cheat-sheet) looks clever, but from my point of view a bit too clever for my own good. So, David, I don't think you're missing anything much if you stick with the standard movement keys. Thus C-M-(, C-M-), C-M-f, -b, -u, -d and -k do most of what one wants, in terms of creating and moving around balanced brackets. For example, hoisting a sexp, as Mark illustrated, is just C-M-k, C-M-u, C-y, C-M-k, which takes a lot less time to perform than to describe, and which gives you some sort of visual feedback while you're doing it. Crucially, however, these same keys do mostly the same thing in other modes (though of course they're less useful there), and they don't get in the way. There are things I can see paredit mode does that I do in a more roundabout way, but not that often, and it doesn't upset me that I spend a few more keystrokes on them. Also, using the standard movement keys means less customisation, which means I'm less crippled without my own .emacs! This is not meant as any criticism of paredit mode or its users, of course,.but one doesn't need _every_ gadget Best wishes, Norman -- Norman Gray : http://nxg.me.uk -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ClojureScript in IE 9 (does it work?)
Thanks for the suggestions, I have created a wrapper function and it
works, but it seems, there are more problems.
I use reader/read-string function to parse clojure data structures
sent as POST messages, and it doesn't recognize keywords in IE.
For example, it treats {:status :ok} as {\uFFFD'status \uFFFD'ok}
(I just found the bug and don't tried to investigate yet).
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Re: ClojureScript in IE 9 (does it work?)
I just have tried to replace all special characters in core.js to
their escaped equivalents (\uFDD0 for keywords) and it works fine.
But I still not certain where this bug comes from.
On Jan 20, 12:56 pm, gchristnsn gchrist...@gmail.com wrote:
Thanks for the suggestions, I have created a wrapper function and it
works, but it seems, there are more problems.
I use reader/read-string function to parse clojure data structures
sent as POST messages, and it doesn't recognize keywords in IE.
For example, it treats {:status :ok} as {\uFFFD'status \uFFFD'ok}
(I just found the bug and don't tried to investigate yet).
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Re: how to get font-lock to work in swank repl buffer
On Thursday, January 19, 2012 9:52:44 PM UTC, bsmith.occs wrote: Incidentally, what's with this strange form of let? (let (font-lock-mode) ;; - shouldn't this bind variables? (clojure-mode-font-lock-setup)) In Common Lisp (and presumably in Emacs Lisp as well), 'let' takes an additional pair of parens around each name/value pair. This allows for a shortcut: (let (a) body) is equivalent to (let ((a nil)) body). Sorry for the offtopic, - Daniel -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Pretty-print with metadata
Is there a way to pretty-print an object with its metadata? If I (set! *print-meta* true) at the REPL, I can see the metadata. If I use (pprint thing), I can see the structure much more easily. How can I do both? - Chris -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Pretty-print with metadata
Hi, how about something like this? (defn pprint-with-meta [thing] (when (instanceof? IMeta thing) (print ^) (pprint (meta thing)) (print )) (pprint thing)) Sincerely Meikel -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Pretty-print with metadata
Thanks Meikel. So I guess from your reply that there is no built-in way to do this, right? The objects I'm trying to inspect can be deeply nested maps and vectors, and I want to see all the metadata - not just on the root object. I guess I would have to either re-implement some of the logic of pprint, or hack pprint itself to respect *print-meta*. - Chris -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ClojureScript in IE 9 (does it work?)
It would be helpful if you could investigate the precise problem if there
is one and submit a JIRA ticket.
On Friday, January 20, 2012, gchristnsn gchrist...@gmail.com wrote:
Thanks for the suggestions, I have created a wrapper function and it
works, but it seems, there are more problems.
I use reader/read-string function to parse clojure data structures
sent as POST messages, and it doesn't recognize keywords in IE.
For example, it treats {:status :ok} as {\uFFFD'status \uFFFD'ok}
(I just found the bug and don't tried to investigate yet).
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Re: Pretty-print with metadata
Hi, I don't know a built-in way. But that doesn't mean, that there isn't one. You could ask Tom Faulhaber directly. He did the pretty print stuff. Sincerely Meikel -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Pretty-print with metadata
By looking at pprint.clj, I have come up with something that seems to work.
No hacking is necessary - the code in pprint is impressively clear and
extensible. It's obviously designed to allow exactly this sort of
extension to the printing mechanism.
user (defn ppm [obj]
(let [orig-dispatch pprint/*print-pprint-dispatch*]
(pprint/with-pprint-dispatch
(fn [o]
(when (meta o)
(print ^)
(orig-dispatch (meta o))
(pprint/pprint-newline :fill))
(orig-dispatch o))
(pprint obj
#'user/ppm
user (ppm elt)
^{:xmlns {a http://aaa/}, :xmlns-decls {a http://aaa/}}
{:tag :foo,
:attrs {},
:content
[^{:prefix a, :xmlns {a http://aaa/}}
{:tag :bar, :attrs {}, :content [], :uri http://aaa/}
^{:xmlns {a http://aaa/}}
{:tag :blah,
:attrs {^{:prefix a}[:x http://aaa/;] y},
:content [],
:uri nil}],
:uri nil}
nil
user
Works great! Tom F. is officially my clojure-hero-of-the-day.
thanks,
- Chris
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Re: Pretty-print with metadata
Cool. :) Good to hear, that things are working. Nice to have around. Meikel -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: identical?
Interning a string is caching it in a string pool that lives in the jvm's permgen space. Calling .intern() on a string either adds it to the pool or return the string object that's already in the pool. This is safe to do for strings that are defined statically, generally you don't want to programmatically call .intern() on user input strings because that could blow up the permgen and cause OOM errors. Java also automatically interns its string literals. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Controlling the test environment
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 01/15/2012 06:18 PM, Matt Stump wrote: Is there a way to set different values for global vars when running tests as opposed to the development or production environment? I need to control which database my tests for a noir project connect to. Ideally I would like to do something like the following: for production and development, if an environment variable is set connect to the database server at the specified URL, if not then fall back to localhost. For test start up an embedded server, and connect. After the test is done, rollback the global var to the previous value and resume connecting to the server on localhost or at the location specified by the environment variable. I could create some fixture with-test-database that modifies a global var, but that seems a little hackish. How are other people solving this problem? Is there something similar pre-baked into noir, clojure.test or midje? I wrote support for configuration with different environments into Ciste.[1] You create a config.clj file at the root of your application that contains a map with each of the keys being a keyword naming the environment and the value is a map for all the config options. You can then use set-environment! or with-environment to set the current environment. You can then wrap some code in definitializer. That code will be run whenever the environment changes. I set the environment when my application runs and then wrap all my tests in (with-environment :test ) The config namespace should be isolated enough that you could use it without involving any of the other features. 1: https://github.com/duck1123/ciste/ -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk8ZoO0ACgkQWorbjR01Cx59cACffeQeffgR0zgtqt5FXGaQy9gx zz8An2pMclSd+qA8dxc8XMPB+gMbhNjR =XbSs -END PGP SIGNATURE- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
ANN: ClojureScript revision 927 release
We have released JARs for ClojureScript to the Sonatype OSS
repository. They will be uploaded to the Maven Central repository
within 24 hours.
We do not yet have any automated build/release cycle for
ClojureScript. If you want to track the latest ClojureScript
development, please continue to use Git.
** Sample project.clj
Leiningen users can use a project.clj file similar to the following:
(defproject foo 1.0.0-SNAPSHOT
:description FIXME: write description
:dependencies [[org.clojure/clojure 1.3.0]
[org.clojure/clojurescript 0.0-927]])
To start immediately without waiting for Maven Central, add Sonatype
OSS to your public repositories like this:
:repositories {sonatype-oss
http://oss.sonatype.org/content/groups/public/}
** About Version Numbers
ClojureScript has no release versions yet. Instead we have a
revision number, calculated as the number of commits on the master
branch since the beginning of the project. ClojureScript is currently
at revision 927. In Maven/Leiningen, this is represented as version
0.0-927.
** Dependencies
ClojureScript depends on four things:
*** 1. Clojure 1.3 or later
Published by us. Not declared as a dependency: add it to your project
build configuration.
*** 2. Mozilla Rhino JavaScript engine
Published by Mozilla.
*** 3. Google Closure Compiler
Published by Google. Pulls in a bunch of other dependencies including
Guava, Protocol Buffers, and Ant. You may choose to ignore these or
exclude them in your project build configuration.
*** 4. Google Closure Library
Published by us as org.clojure:google-closure-library, version
0.0-790, where 790 is the Subversion revision number we are using.
The most recent SVN revision does not currently work with
ClojureScript.
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How to loop over several sequences in parallel for side-effects?
Hi All, Here is a simple problem for which I nevertheless can't seem to find the right solution: How to run over several sequences in parallel for side-effects? Here is one way: (dorun (map some-fn-with-side-effects sequence-1 sequence-2)) However, I was told that the form (dorun (map ... )) indicates that doseq should be used instead because it is faster, and I can use speed. I think that this is not possible however because doseq only allows to loop over a single sequence at a time? I was wondering what is the idiomatic clojure way in this case? Thanks! Jm. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Gist script
Hey everyone, I've been playing around with Clojure, and came up with this little thing to allow you to easily pull scripts in from Gist and execute them. Thought it might be useful to someone! https://gist.github.com/1646223 - DAemon -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Best IDE
That third trick works in standard vim when you type da(...except you don't have to be on the opening paren, you can be anyplace within the sexp (as long as you're not within a smaller sexp, in which case you'll get that one.) A couple quick macros can handle the other two. If those three are the main benefits of paredit, then vim might be a better fit for lisp than I'd realized. (I'm a lispy newb so I don't have a whole lot of experience trying to edit it yet.) On Thu, Jan 19, 2012 at 8:26 PM, Mark Nutter manutte...@gmail.com wrote: On Thu, Jan 19, 2012 at 11:42 AM, David Brunell quantal...@gmail.com wrote: How long did it take you to get comfortable with paredit? I keep getting frustrated and going back to manually matching parens. I had the same experience for a while, but then I realized I just had to remember 3 things: To enclose an existing sexp inside a new one---in other words, if I have (map...) and I want (doall (map...))---put the cursor on the opening paren of the existing sexp and type M-( and it automatically wraps the whole sexp in parens, correctly balanced. To pull an existing sexp out of its enclosing sexp---i.e. to turn (doall (map ...)) back into (map...)---put the cursor on the opening paren of the inner sexp and type M-uparrow. Use with caution, because it nukes anything else in the same enclosing sexp, but that's not too bad because: If you put the cursor on the opening paren and then hit C-k, it cuts out exactly that sexp (and its contents) but no more, keeping the parens perfectly balanced. That last trick is what made paredit a must-have for me, because I do a lot of cut and paste, and paredit makes it a piece of cake. You don't have to worry about selecting the beginning and ending parens, just put the cursor on the open paren and hit C-k, and it cuts exactly as much as it needs to grab a balanced sexp, even across multiple lines, leaving any other close-parens untouched. It's awesome. I think paredit does other stuff too, but those three things get me through the day. Mark -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Best IDE
Agreed. I find paredit mode essential for any serious coding. That said,
there are brief periods in which I find I like it off.
On Jan 19, 2012 1:57 PM, Sean Corfield seancorfi...@gmail.com wrote:
On Thu, Jan 19, 2012 at 9:07 AM, Laurent PETIT laurent.pe...@gmail.com
wrote:
I've tried paredit in emacs, found it really cool, and ported it to
Counterclockwise.
I'm now totally sold to it, and I couldn't imagine a working session with
Counterclockwise's Strict edition mode (aka paredit for emacsers)
turned
off.
When I introduce anyone to Clojure who uses Eclipse, I set them up
with CCW and strict structural mode and they take the auto-matching
of ( { [ for granted and never question it. When I first started with
CCW and Clojure, I quickly found the benefits of strict mode
outweighed any minor annoyances.
When I switched to Emacs, the first thing I did was add paredit and
now I rely on it heavily when refactoring code (as well as for general
editing).
--
Sean A Corfield -- (904) 302-SEAN
An Architect's View -- http://corfield.org/
World Singles, LLC. -- http://worldsingles.com/
Perfection is the enemy of the good.
-- Gustave Flaubert, French realist novelist (1821-1880)
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Re: Best IDE
On Thu, Jan 19, 2012 at 2:37 PM, Maris maris.orbid...@gmail.com wrote: Emacs + Paredit is probably the best IDE. Nothing improves productivity like paredit. Hi, Hopefully you won't consider it too much self promotion ;-), but I gave brief (7 mins) lightning talk at the london clojure user group earlier in the week about paredit which might be of use to anyone not familiar or sure of the benefits You can watch it here: http://skillsmatter.com/podcast/scala/paredit-mode Neale (@sw1nn) -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Documenting Clojure Design without UML
I have always used UML to document the design of software projects I have worked on in object-oriented languages. I am now working on a Clojure project and am required to document the design so anyone reading these documents will understand the design of the software. I was wondering if there is anything like UML that can be applied to Clojure for these purposes? It is quite important that I document the design of the software on paper so any suggestions on doing this would be great. Thanks, Adam -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: strange problem
On Jan 18, 8:23 pm, Andy Fingerhut andy.finger...@gmail.com wrote: I don't have some code lying around to do that, but I might make one. The name strings would require several megabytes of storage, but as long as you don't mind that... I wouldn't mind, but the code your provided is already more than I was hoping for, so thanks again! Jm -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Sorry Don't understand for macro, a bug or a newbie-question??
Ah, thank you, so a newbie question. But helped me a lot. Andreas On Jan 18, 10:26 pm, Jack Moffitt j...@metajack.im wrote: doesn't show any effect of the for. The only difference is the additional statement at the end. I can not imagine how this statement sequentially behind can influence the for. for returns a lazy sequence. In the first case, in printing out the result to the REPL, the lazy sequence is realized, and in the second, the result is discarded so it is never realized. jack. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: lein-cljsbuild 0.0.1 released
I find the idea of using a special filename extension rather appealing. A couple of notes: (1) I'm not sure there is a generic clojure. ClojureScript has a couple serious differences from Clojure, such as the way macros are included in (ns ...). (2) ClojureScript macro files, AFAICT, really are strictly Clojure files. So I think these would stay .clj. (Unless I'm missing something?) -Evan On Jan 19, 12:55 am, Dave Sann daves...@gmail.com wrote: If you are referring to (2), I agree. But marking the type of a file by either path or extension is not a hack, in my opinion. (3) I was suggesting that ideally this would be better. To justify this statement I would claim that: jvm clj files - using java platform specifics clr clj files - using .net platform specifics generic clj files - using only clojure cljs files - using browser platform specifics (and even nodejs - using node platform specifics) (and a special case of cljs macros) are all different classes/types of clojure code. In the much the same way that .java and .clj are different. Different builds will use different files. The problem that these build tools (crossovers and so forth) are trying to address is how to classify these so as to know whether to use or ignore them - for a specific build. Dave -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Best IDE
emacs. :D Seriously though, start with viper-mode. --- Joseph Smith j...@uwcreations.com (402)601-5443 On Jan 18, 2012, at 1:35 PM, Jeb Beich wrote: Any suggestions for a vim man? On Wed, Jan 18, 2012 at 1:29 PM, Cedric Greevey cgree...@gmail.com wrote: On Wed, Jan 18, 2012 at 11:18 AM, Jay Fields j...@jayfields.com wrote: Use emacs, if you want the path of least resistance *boggles* Say WHAT? You've got to be kidding. That's like suggesting that the path of least resistance in taking a trip to L.A. involves climbing the north face of Everest instead of using an airplane. In particular, the learning curve of emacs and the north face of Everest, in a shocking coincidence, turn out to have exactly the same geometry. :) -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- Jeb Beich http://www.red-source.net/jeb -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Seemingly simple shell commands taking forever
I am using lein run -m to execute a simple database preparation task. I issue 2 very simple commands that execute very fast on their on own when executed in the shell. They also appear to execute very fast based on the print output to stdout. However, the problem is that after executing the 2 clojure.java.shell sh commands the process hangs on way after it completes. So much so that it feels wrong. Here is the gist. https://gist.github.com/1635837 PS I stripped down the database credentials so that it would be easily runnable on anyone's machine so don't bother flaming me for using the root user. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ANN: ClojureScript revision 927 release
Sweet!
On Fri, Jan 20, 2012 at 2:14 PM, Stuart Sierra
the.stuart.sie...@gmail.comwrote:
We have released JARs for ClojureScript to the Sonatype OSS
repository. They will be uploaded to the Maven Central repository
within 24 hours.
We do not yet have any automated build/release cycle for
ClojureScript. If you want to track the latest ClojureScript
development, please continue to use Git.
** Sample project.clj
Leiningen users can use a project.clj file similar to the following:
(defproject foo 1.0.0-SNAPSHOT
:description FIXME: write description
:dependencies [[org.clojure/clojure 1.3.0]
[org.clojure/clojurescript 0.0-927]])
To start immediately without waiting for Maven Central, add Sonatype
OSS to your public repositories like this:
:repositories {sonatype-oss
http://oss.sonatype.org/content/groups/public/}
** About Version Numbers
ClojureScript has no release versions yet. Instead we have a
revision number, calculated as the number of commits on the master
branch since the beginning of the project. ClojureScript is currently
at revision 927. In Maven/Leiningen, this is represented as version
0.0-927.
** Dependencies
ClojureScript depends on four things:
*** 1. Clojure 1.3 or later
Published by us. Not declared as a dependency: add it to your project
build configuration.
*** 2. Mozilla Rhino JavaScript engine
Published by Mozilla.
*** 3. Google Closure Compiler
Published by Google. Pulls in a bunch of other dependencies including
Guava, Protocol Buffers, and Ant. You may choose to ignore these or
exclude them in your project build configuration.
*** 4. Google Closure Library
Published by us as org.clojure:google-closure-library, version
0.0-790, where 790 is the Subversion revision number we are using.
The most recent SVN revision does not currently work with
ClojureScript.
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Re: How to loop over several sequences in parallel for side-effects?
On Fri, Jan 20, 2012 at 8:18 AM, joachim joachim.de.be...@gmail.com wrote: Hi All, Here is a simple problem for which I nevertheless can't seem to find the right solution: How to run over several sequences in parallel for side-effects? Here is one way: (dorun (map some-fn-with-side-effects sequence-1 sequence-2)) However, I was told that the form (dorun (map ... )) indicates that doseq should be used instead because it is faster, and I can use speed. I think that this is not possible however because doseq only allows to loop over a single sequence at a time? I was wondering what is the idiomatic clojure way in this case? You know that (map f seq1 seq2) means call f with one argument from seq1 and one from seq2 in turn, until one of the sequences has been exhausted? Does = (map #(vector %1 %2) [1 2 3] ['a 'b 'c]) ([1 a] [2 b] [3 c]) Seem like the result you would expect or not, when you talk about run over several sequences in parallel? Lars Nilsson -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Documenting Clojure Design without UML
Hi, I think your problem is more general than just Clojure. Actually there was a long discussion on the Functional Programming group over at LinkedIn about applying UML to functional languages. The general consensus is that you can somehow adapt UML concepts to describe data structures and execution flow, but there isn't an established way how to do it. -- Paulo On 19 Jan., 14:12, Adam Markham adamjmark...@gmail.com wrote: I have always used UML to document the design of software projects I have worked on in object-oriented languages. I am now working on a Clojure project and am required to document the design so anyone reading these documents will understand the design of the software. I was wondering if there is anything like UML that can be applied to Clojure for these purposes? It is quite important that I document the design of the software on paper so any suggestions on doing this would be great. Thanks, Adam -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ANN: ClojureScript revision 927 release
Weekend made. Thank you! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Best IDE
I say just to use whichever environment you like most. I use Intellij. And its all good. Ctrl-w to grab matching parens. Ctrl-shift up/down to move lines of code. Etc... What I'm saying is that most modern tools can generally get you where you want to go, so pick what you are comfortable with. On Jan 20, 2012 2:15 PM, Dennis Peterson dennisbpeter...@gmail.com wrote: That third trick works in standard vim when you type da(...except you don't have to be on the opening paren, you can be anyplace within the sexp (as long as you're not within a smaller sexp, in which case you'll get that one.) A couple quick macros can handle the other two. If those three are the main benefits of paredit, then vim might be a better fit for lisp than I'd realized. (I'm a lispy newb so I don't have a whole lot of experience trying to edit it yet.) On Thu, Jan 19, 2012 at 8:26 PM, Mark Nutter manutte...@gmail.com wrote: On Thu, Jan 19, 2012 at 11:42 AM, David Brunell quantal...@gmail.com wrote: How long did it take you to get comfortable with paredit? I keep getting frustrated and going back to manually matching parens. I had the same experience for a while, but then I realized I just had to remember 3 things: To enclose an existing sexp inside a new one---in other words, if I have (map...) and I want (doall (map...))---put the cursor on the opening paren of the existing sexp and type M-( and it automatically wraps the whole sexp in parens, correctly balanced. To pull an existing sexp out of its enclosing sexp---i.e. to turn (doall (map ...)) back into (map...)---put the cursor on the opening paren of the inner sexp and type M-uparrow. Use with caution, because it nukes anything else in the same enclosing sexp, but that's not too bad because: If you put the cursor on the opening paren and then hit C-k, it cuts out exactly that sexp (and its contents) but no more, keeping the parens perfectly balanced. That last trick is what made paredit a must-have for me, because I do a lot of cut and paste, and paredit makes it a piece of cake. You don't have to worry about selecting the beginning and ending parens, just put the cursor on the open paren and hit C-k, and it cuts exactly as much as it needs to grab a balanced sexp, even across multiple lines, leaving any other close-parens untouched. It's awesome. I think paredit does other stuff too, but those three things get me through the day. Mark -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: how to get font-lock to work in swank repl buffer
On Fri, Jan 20, 2012 at 00:45, Jack Moffitt j...@metajack.im wrote: (add-hook 'slime-repl-mode-hook (lambda () (clojure-mode-font-lock-setup) (font-lock-mode) (font-lock-mode))) Excellent! This worked for me. Many thanks for the tip. // ben -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to loop over several sequences in parallel for side-effects?
Hi, to add to Lars answer: (doseq [[a b c] (map vector s1 s2 s3)] (side-effect-fn a b c)) This should do the trick. Sincerely Meikel -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to loop over several sequences in parallel for side-effects?
On Jan 20, 2012, at 2:41 PM, Lars Nilsson wrote: = (map #(vector %1 %2) [1 2 3] ['a 'b 'c]) ([1 a] [2 b] [3 c]) Sorry if I'm drifting a bit off topic, but I just wanted to point out that it's convenient to use just the function name if the arguments are already in the appropriate order. Also, it is sometimes convenient to quote a vector rather than the individual elements. For example, the following is an equivalent expression: (map vector [1 2 3] '[a b c]) Of course, wrapping the expression in dorun is necessary if you care about forcing side-effects. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to loop over several sequences in parallel for side-effects?
But I don't see any reason why this would be faster than (dorun (map side-effect-fn s1 s2 s3)). You're creating and then dismantling a three-element vector at every iteration to no purpose. On Jan 20, 12:40 pm, Meikel Brandmeyer m...@kotka.de wrote: Hi, to add to Lars answer: (doseq [[a b c] (map vector s1 s2 s3)] (side-effect-fn a b c)) This should do the trick. Sincerely Meikel -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Pretty-print with metadata
Yeah, but it won't quite work if even the metadata has metadata.
user= (def x (with-meta {:b 1} (with-meta {:a 1} {:x 1})))
#'user/x
user=
x
{:b 1}
user=
(meta x)
{:a 1}
user=
(meta (meta x))
{:x 1}
The code above would leave out the metadata {:x 1} on {:a 1}, though
it should display the metadata for anything *inside* that map.
I think it could be adjusted with:
(fn [o] -(fn pm [o]
(orig-dispatch (meta o))-(pm (meta o))
Of course, this is probably a pretty rare corner case.
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Re: Seemingly simple shell commands taking forever
techwhizbang techwhizb...@gmail.com writes: I am using lein run -m to execute a simple database preparation task. I issue 2 very simple commands that execute very fast on their on own when executed in the shell. They also appear to execute very fast based on the print output to stdout. However, the problem is that after executing the 2 clojure.java.shell sh commands the process hangs on way after it completes. So much so that it feels wrong. Here is the gist. https://gist.github.com/1635837 The agent thread pool is probably keeping the process open. Try calling (shutdown-agents) when you're done. This is a long-standing known bug/shortcoming in Clojure: http://dev.clojure.org/jira/browse/CLJ-124 -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
Re: topoged-hibernate 1.0.0
On Jan 6, 8:20 am, Bill Robertson billrobertso...@gmail.com wrote: On Jan 3, 4:26 pm, Matthew O. Smith m0sm...@gmail.com wrote: There is a mismatch between hibernate maps and clojure maps which means that there is some translating between them. Hopefully, this will be smoothed over in the future What is the mismatch? The mismatch is that Hibernate and Clojure see Map object differently so there is an (in my mind) unnecessary conversion that has to take place at the boundary between the two systems both in sending data to Hibernate and also retrieving it. It is not a huge deal, but it is annoying. As an example consider this code. Rather than treating a map as Clojure map (immutable), the develop has to treat the map as a mutable object. (with-session [session _] (let [person (.load session Person 1) email topo...@topoged.com] (doto (. person (get emailAddresses)) (.add email Instead I would like somthing like: (with-session [session _] (let [person (.load session Person 1) email topo...@topoged.com] (assoc-in person [:emailAddresses] email))) But that leaves the question of how to propagate the change back to the Hibernate session.I had thought about some hybrid between java.util.Map and IMap but decided not as it would end up just creating more problems than it solves. It is a problem I am still working on. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Pretty-print with metadata
Good catch! I was about to add this to my personal toolkit of generally useful random crap (every programmer has one of those, right?). I'll make sure to cover that edge-case. Thanks. - Chris -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Clojurescript One: distinguishing event sources / multiple widget instances
Hi David, Setting aside the data binding aspect of the problem for a minute.. jQuery, Dojo and other JS libs seem to be going all-in on the event delegation paradigm. The idea is: instead of binding event handlers to each individual instance, you let the events bubble up to the top of the document, and then have a single mechanism that matches the [event, eventsource] tuple to the desired function. In effect it allows elements to inherit the dom handlers appropriate to them. The advantages of this are: 1) Performance (no need to attach copies of the same handler everywhere; more opportunities for JITing optimizations) and 2) Code simplification (since adding new elements does not require also attaching their event handlers) . The core matching part seems up the logic/predicate dispatch alley. Extending this kind of event-handling to data binding (for for example having the matched tuple be [event, eventsource, corresponding-model-data] ) might be a way to get at the problem. On Wed, Jan 18, 2012 at 1:21 PM, David Nolen dnolen.li...@gmail.com wrote: On Tue, Jan 17, 2012 at 10:08 PM, kovas boguta kovas.bog...@gmail.com wrote: Pretty basic question here. Suppose I want to have 2 copies of the form in the same application. How will the event handlers know which form the events are coming from, and which form needs to be modified in response to those events? More generally, what if I have N copies of some widget that all have the same structure, but different instance data. For example, a list of tweets, where each tweet has favorite button. My current impression is that I'd have to architect the event routing myself, making sure some distinguishing ID is carried around throughout. Is this accurate? What is the recommended way to handle this situation? Thanks, Kovas I think it's an open question on how to best solve this problem. There have been many, many approaches to binding the UI to the data layer. ClojureScript One's dispatch approach is very interesting, but it might need something like efficient predicate dispatch to scale. It's worth looking at complex binding solutions like Cocoa Bindings and simple binding UI / data binding projects like Backbone.js or Ember.js to see how much progress there is to be made in this space. If people have other suggestion of things to look at, speak up. David -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Clojurescript One: distinguishing event sources / multiple widget instances
On Fri, Jan 20, 2012 at 6:06 PM, kovas boguta kovas.bog...@gmail.comwrote: Hi David, Setting aside the data binding aspect of the problem for a minute.. jQuery, Dojo and other JS libs seem to be going all-in on the event delegation paradigm. Yup event delegation is definitely the way to go. David -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: active jQuery ticket for ADVANCED_OPTIMIZATIONS
nice! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
confusing macro issue: java.lang.InstantiationException
I've been trying to write a macro to generate predicates from maps,
for instance the map {1 :one 2 :two} would define two predicates, one?
and two? Here's the first part of the macro:
(defmacro make-predicate [keyword-pair]
`(defn ~(symbol (str (name (nth (eval keyword-pair) 1)) ?)) [~'x]
(= ~'x ~(nth (eval keyword-pair) 0
So far, so good (I'm using symbol capture because x is a bound
variable here anyway). For instance:
(def nums {1 :one 2 :two})
(make-predicate (first nums))
#'user/one?
Now I try to use this macro on an entire map:
(defn make-predicates-from-map [keyword-map]
(loop [kmap keyword-map]
(if (empty? kmap) nil
(do
(make-predicate (first kmap))
(recur (rest kmap))
But this won't even compile: it gives a
java.lang.InstantiationException.
I guess this has something to do with keyword-map not being an actual
map yet at macroexpansion time. Whether or not that's the problem,
how do you get around it? I did try making the whole thing into a
macro:
(defmacro make-predicates-from-map [keyword-map]
`(loop [kmap# ~keyword-map]
(if (empty? kmap#) nil
(do
(macroexpand-1 (make-predicate (first kmap#)))
(recur (rest kmap#))
But this time I just get the InstantiationException when I run it.
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Re: clojure-clr loadpath points to D: harddrive
It shouldn't, obviously. It appears to be holding on to a compile- time value somewhere. I'll track it down this weekend. -David On Jan 19, 10:25 pm, jayvandal s...@ida.net wrote: Why does the clr point to d: work? user= (use :reload 'ui) FileNotFoundException Could not locate db.mysql.clj.dll or db/ mysql.clj on load path. clojure.lang.RT.load (d:\work\clojure-clr\Clojure\Clojure\Lib \RT.cs:3065) user= -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
clooj ot seeing output
I aam trying hello-seesaw tutorial in clooj. I don't see output or screens as in running Leiningen. I trie adding all the commands and didn't see any output, so I went back line by line and can't see any screens. What commands should I be using to see progres? I am still trying to write Clojure code but simple errors -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: confusing macro issue: java.lang.InstantiationException
On Fri, Jan 20, 2012 at 9:54 PM, drewn naylor...@gmail.com wrote:
I've been trying to write a macro to generate predicates from maps,
for instance the map {1 :one 2 :two} would define two predicates, one?
and two?
What's the use case for this?
(def one? #{1})
(def two? #{2})
isn't much worse. I suppose a macro to emit those might be useful,
though I'd probably put the fn-names first in each pair; something
like
(defmacro specific-thing-preds [ kvs]
`(do ~@(map (fn [[k v]] `(def ~k #{~v})) (partition 2 kvs
(specific-thing-preds one? 1 two? 2)
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Re: confusing macro issue: java.lang.InstantiationException
Thank you, that works great! It's a nice use of destructuring too, which I should of thought of. I guess this is one case where solving the problem in pieces does not help. Actually, I seem to remember seeing idioms like that for other macros over sequences. I understand a little more now why. What's the use case for this? A map can be used as a function translating a numeric code to a keyword (e.g., an event code). There may be very large maps of this type, but you might also want predicates to test whether something is of a given type. Might as well generate them from the map you already have. I modified your solution so it fits my use case: (defmacro make-predicates [kvs] `(do ~@(map (fn [[v k]] `(defn ~(symbol (str (name k) ?)) [~'x] (= ~'x ~v))) (eval kvs The eval is needed so I can pass in a variable, and I used the defn form so I could get a regular true-false predicate. Thanks for a great lesson on macros! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
