Re: suggestion for clojure development
Improve as much as possible , performances and memory management !! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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 attach debugger on clojure's repl ?
Thanks !! but i am not using emacs i will watch it and i will try to integrate it on the IDEAJ On Sep 22, 4:04 am, Scott Jaderholm jaderh...@gmail.com wrote: While that still works, ritz is really where it's at for awesome debugging clojure in emacs. It allows stepping and stuff with a nice UI. https://github.com/pallet/ritz Video (only for overview, follow instructions at url above)http://www.youtube.com/watch?v=d_L51ID36w4 One of my favorite things with it is using it with OpenJDK w/ source so I can go down the rabbit hole of stepping into my code, Clojure, and the JVM itself (just for fun, not had a need for this yet). Scott On Wed, Sep 21, 2011 at 6:01 PM, Timothy Washington twash...@gmail.comwrote: This guy's put together a good video on how to use debugging to swank / slime. -http://www.youtube.com/watch?v=galfpq969Hg Tim Washington twash...@gmail.com 416.843.9060 On Tue, Sep 20, 2011 at 10:37 AM, cran1988 rmanolis1...@hotmail.comwrote: I am trying to figure out how abcl does it On Sep 20, 12:41 pm, Herwig Hochleitner hhochleit...@gmail.com wrote: You can debug clojure code with a normal Java Debugger. When using Emacs, you can tryhttp:// georgejahad.com/clojure/swank-cdt.html -- __ Herwig Hochleitner -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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 attach debugger on clojure's repl ?
However can we integrate it on the repl using (clojure.main/repl :eval function ) ? It is very cool debugger!! On Sep 22, 4:04 am, Scott Jaderholm jaderh...@gmail.com wrote: While that still works, ritz is really where it's at for awesome debugging clojure in emacs. It allows stepping and stuff with a nice UI. https://github.com/pallet/ritz Video (only for overview, follow instructions at url above)http://www.youtube.com/watch?v=d_L51ID36w4 One of my favorite things with it is using it with OpenJDK w/ source so I can go down the rabbit hole of stepping into my code, Clojure, and the JVM itself (just for fun, not had a need for this yet). Scott On Wed, Sep 21, 2011 at 6:01 PM, Timothy Washington twash...@gmail.comwrote: This guy's put together a good video on how to use debugging to swank / slime. -http://www.youtube.com/watch?v=galfpq969Hg Tim Washington twash...@gmail.com 416.843.9060 On Tue, Sep 20, 2011 at 10:37 AM, cran1988 rmanolis1...@hotmail.comwrote: I am trying to figure out how abcl does it On Sep 20, 12:41 pm, Herwig Hochleitner hhochleit...@gmail.com wrote: You can debug clojure code with a normal Java Debugger. When using Emacs, you can tryhttp:// georgejahad.com/clojure/swank-cdt.html -- __ Herwig Hochleitner -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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 attach debugger on clojure's repl ?
I am trying to figure out how abcl does it On Sep 20, 12:41 pm, Herwig Hochleitner hhochleit...@gmail.com wrote: You can debug clojure code with a normal Java Debugger. When using Emacs, you can tryhttp://georgejahad.com/clojure/swank-cdt.html -- __ Herwig Hochleitner -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
JavaOne 2011 videos
http://vimeo.com/tag:javazone2011/page:0/sort:newest I am not sure if all the clojure videos are there. But for sure have plenty videos about scala. Dont worry ... clojurians will rise up and control the market , next year! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
How to attach debugger on clojure's repl ?
I am looking forward for a debugger like in CLISP , SBCL etc.. Is there any solution out there ? Are you going to develop such a tool and you need help ? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Problem with Greeks!
My problem started when I was trying to pass greek in hiccup and the browser showed me this ? So i installed clojure 1.3.0 and Noir 1.1.1 (i had a little problem with dependencies but i cleaned it) and it works. However lein repl had a problem with greeks (even with the new installation) , but using your advices , i solved it ! You were very helpful !!! THANK YOU MAN! On Aug 17, 12:04 pm, Rasmus Svensson r...@lysator.liu.se wrote: 2011/8/17 cran1988 rmanolis1...@hotmail.com: My jvm is already UTF-8 however it works with clojure 1.3.0 beta1 but i have problems i get an error NoSuchMethodError clojure.lang.KeywordLookupSite.init(ILclojure/lang/ Keyword;)V clout.core/request-url (core.clj:53) The encoding problem and this version incompatibility problem should not be related. Nothing encoding related has changed between Clojure 1.2 and 1.3, as far as I know. I decided to reply with my answer (even though your problem is apparently fixed), because I had already begun writing it and this is a problem many people have. (So hopefully this could be useful for someone else too.) 2011/8/17 cran1988 rmanolis1...@hotmail.com: I tried (str Γεια!) and i got ! what can I do to fix it ? Clojure has a modern string model in which a string is a logical sequence of characters, not bytes. However, Clojure cannot fix problems outside the Clojure process, so you can still get problems like this. Track A - You are running the Clojure REPL in a terminal window Before you check for any Clojure-related issues, let's make sure it's not caused by the terminal or your OS. Make sure that your locale is set to one with the UTF-8 encoding scheme (in most modern OSes this should be the case). In Unix-like systems, you can check it like this: raek@sirius:~$ echo $LANG sv_SE.utf8 Here sv_SE means Swedish, but it's the part after the dot that's interesting. After this, make sure the encoding in your terminal is set to UTF-8 too. In gnome-terminal (default terminal application in Ubuntu) make sure that Unicode (UTF-8) is selected in the Terminal - Set Character Encoding menu. This should hopefully already be UTF-8 in most modern OSes. In PuTTY (a common terminal application on Windows) go to the Window - Translation tree item and select UTF-8 in the topmost drop down list. UTF-8 is *not* the default encoding scheme in PuTTY, - ISO 8859-1 is. Now when you have a confirmed UTF-8 terminal, let's look at the Clojure side. If you use JLine or use the default installation of Leiningen (which uses JLine), you should abandon it. JLine does not support modern encoding schemes like UTF-8 and garbles the data without warnings. Use the rlwrap application instead. It does the same thing but works for encodings like UTF-8. If you install it using your OS package manager (e.g. apt-get on Ubuntu), Leiningen will pick it up and use it instead of JLine automatically. At this point, using any characters in the repl should just work. There can be subtle problems with encodings if you happen to configure things badly for both the input and output of the REPL - you can have a problem that undoes itself. To verify that the text the Clojure REPL receives is really the one you wrote, you can use this simple test: user= (seq Γεια) (\Γ \ε \ι \α) I.e. you give Clojure a string and ask it to display its individual characters. If you see a sequence of four characters here (and they display correctly), everything is good. If you see another number of characters something is still wrong. Track B - You are using the Slime REPL in Emacs If you recent versions of clojure-mode use the clojure-jack-in way of doing things, this should just work. Oherwise you just need to set a variable: M-x customize-variable RET slime-net-coding-system (select utf-8-unix and save) Or you can add this to your config: (setq slime-net-coding-system 'utf-8-unix) And that should be it. Use the seq test above to verify. I hope this helps! Please tell me if any step is not working. the Encoding Guy at your service, Rasmus Svensson (raek) -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Problem with Greeks!
I tried (str Γεια!) and i got ! what can I do to fix it ? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Problem with Greeks!
My jvm is already UTF-8 however it works with clojure 1.3.0 beta1 but i have problems i get an error NoSuchMethodError clojure.lang.KeywordLookupSite.init(ILclojure/lang/ Keyword;)V clout.core/request-url (core.clj:53) On Aug 17, 3:30 am, Ken Wesson kwess...@gmail.com wrote: On Tue, Aug 16, 2011 at 7:56 PM, cran1988 rmanolis1...@hotmail.com wrote: I tried (str Γεια!) and i got ! what can I do to fix it ? Set something, somewhere, to UTF-8 that's probably set to ISO-8859-1 or US-ASCII right now. Also, her name would be spelt Λεια, and her famous plea Ηελπ με, Οβι-ωαν Κενοβι! or something like that. :) -- Protege: What is this seething mass of parentheses?! Master: Your father's Lisp REPL. This is the language of a true hacker. Not as clumsy or random as C++; a language for a more civilized age. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Problem with Greeks!
I am going to try java 7 with clojure On Aug 17, 6:36 am, Kevin Livingston kevinlivingston.pub...@gmail.com wrote: I don't know about the clojure compiler. But we've run into some issues with the java compiler. There are flags to inform it what file encodings are being used in a file. For example, http://java.sun.com/javase/technologies/core/basic/intl/faq.jsp#set-d... Java will make assumptions about output format based on your machine too http://java.sun.com/javase/technologies/core/basic/intl/faq.jsp#defau... sorry this isn't really an answer, but it's evidence that you aren't hallucinating anyway, Kevin On Aug 16, 7:09 pm, cran1988 rmanolis1...@hotmail.com wrote: My jvm is already UTF-8 however it works with clojure 1.3.0 beta1 but i have problems i get an error NoSuchMethodError clojure.lang.KeywordLookupSite.init(ILclojure/lang/ Keyword;)V clout.core/request-url (core.clj:53) On Aug 17, 3:30 am, Ken Wesson kwess...@gmail.com wrote: On Tue, Aug 16, 2011 at 7:56 PM, cran1988 rmanolis1...@hotmail.com wrote: I tried (str Γεια!) and i got ! what can I do to fix it ? Set something, somewhere, to UTF-8 that's probably set to ISO-8859-1 or US-ASCII right now. Also, her name would be spelt Λεια, and her famous plea Ηελπ με, Οβι-ωαν Κενοβι! or something like that. :) -- Protege: What is this seething mass of parentheses?! Master: Your father's Lisp REPL. This is the language of a true hacker. Not as clumsy or random as C++; a language for a more civilized age. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Problem with Greeks!
THE PROBLEM SOLVED !!! https://groups.google.com/group/clj-noir/browse_thread/thread/b02a740e6db62b58 Thanks for your support ! On Aug 17, 6:58 am, cran1988 rmanolis1...@hotmail.com wrote: I am going to try java 7 with clojure On Aug 17, 6:36 am, Kevin Livingston kevinlivingston.pub...@gmail.com wrote: I don't know about the clojure compiler. But we've run into some issues with the java compiler. There are flags to inform it what file encodings are being used in a file. For example, http://java.sun.com/javase/technologies/core/basic/intl/faq.jsp#set-d... Java will make assumptions about output format based on your machine too http://java.sun.com/javase/technologies/core/basic/intl/faq.jsp#defau... sorry this isn't really an answer, but it's evidence that you aren't hallucinating anyway, Kevin On Aug 16, 7:09 pm, cran1988 rmanolis1...@hotmail.com wrote: My jvm is already UTF-8 however it works with clojure 1.3.0 beta1 but i have problems i get an error NoSuchMethodError clojure.lang.KeywordLookupSite.init(ILclojure/lang/ Keyword;)V clout.core/request-url (core.clj:53) On Aug 17, 3:30 am, Ken Wesson kwess...@gmail.com wrote: On Tue, Aug 16, 2011 at 7:56 PM, cran1988 rmanolis1...@hotmail.com wrote: I tried (str Γεια!) and i got ! what can I do to fix it ? Set something, somewhere, to UTF-8 that's probably set to ISO-8859-1 or US-ASCII right now. Also, her name would be spelt Λεια, and her famous plea Ηελπ με, Οβι-ωαν Κενοβι! or something like that. :) -- Protege: What is this seething mass of parentheses?! Master: Your father's Lisp REPL. This is the language of a true hacker. Not as clumsy or random as C++; a language for a more civilized age. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Using Clojure To Debug Java Apps
This is great !!!
But you should posting it in a blog and compare it with other
solutions.
On Jul 12, 2:31 am, Asim Jalis asimja...@gmail.com wrote:
I have been using the Clojure REPL to debug a large Java server app.
It's great for exploratory testing and for validating assumptions
about how the system works. I wanted to post the code here in case
someone else finds this useful.
1. Stick this in a class that is loaded early in the server/app.
public static class Repl {
public static final String PORT = 18081;
public static final String NS = user;
private final String initResult; public String getInitResult() {
return initResult; }
public Object invoke(String fn) { try { return
clojure.lang.RT.var(NS, fn).invoke(); } catch (Exception e) { return
null; } }
public Object invoke(String fn, Object arg1) { try { return
clojure.lang.RT.var(NS, fn).invoke(arg1); } catch (Exception e) {
return null; } }
public Object invoke(String fn, Object arg1, Object arg2) { try {
return clojure.lang.RT.var(NS, fn).invoke(arg1, arg2); } catch
(Exception e) { return null; } }
public Object invoke(String fn, Object arg1, Object arg2, Object
arg3) { try { return clojure.lang.RT.var(NS, fn).invoke(arg1, arg2,
arg3); } catch (Exception e) { return null; } }
public Repl() {
String result;
try {
clojure.lang.Var eval = clojure.lang.RT.var(clojure.core,
eval);
clojure.lang.Var read =
clojure.lang.RT.var(clojure.core, read-string);
String create_repl_server =
(do +
(use '[clojure.contrib.server-socket :only
[create-repl-server]]) +
(create-repl-server + PORT + ) + );
result = eval.invoke(read.invoke(create_repl_server)).toString();
} catch (Exception e) {
result = e.toString();
}
initResult = result;
}}
public static final Repl REPL = new Repl();
2. Use this on the command line to start the REPL:
rlwrap --logfile $HOME/tmp/clj.log telnet localhost 18081
Now from the REPL you can create Java objects and call methods at will.
3. To call a Clojure function called some-function in user namespace
from Java, use something like this:
REPL.invoke(some-function, arg1));
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Native compiler on Clojure
Did anyone started creating native compiler for Clojure language ? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Mutable Clojure Data Structures
Hi I love Clojure ,but Clojure sucks a lot of memory and that frustrates me ! I am looking forward to find a way to put mutability in my code the same way i put immutable data structures. For example imagine ~[ 1 2 3 4 ] to be mutable vector and every semicolon that have this ~ in front to be mutable. But I dont know from where to start , can you give me some tips ? Maybe i will create a fork of the compiler or a binding library based on java collection API I know that developers of the compiler will not like it . However if we succeed , then there is a future of clojure in androids and desktop aplication ! Thank you for listening ! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from 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: Mutable Clojure Data Structures
Sorry ,I just guessed that the fault is in immutability I read about for clojure performance tips http://gnuvince.wordpress.com/2009/05/11/clojure-performance-tips/ but i feel it is not enough. On Jul 8, 11:02 pm, Timothy Baldridge tbaldri...@gmail.com wrote: I love Clojure ,but Clojure sucks a lot of memory and that frustrates me ! I seriously doubt the memory bloat is due to the immutable structures. During a fast inner loop that is allocating tons of structures, you may see a little memory bloat, but that's only until the GC catches up. I'm pretty sure you're barking up the wrong tree here. Do you have any proof that immutable structures are causing the bloat? Or are you just guessing. Remember, premature optimization is the root of much evil. Timothy -- “One of the main causes of the fall of the Roman Empire was that–lacking zero–they had no way to indicate successful termination of their C programs.” (Robert Firth) -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Mutable Clojure Data Structures
Thanks I will try profiling the code On Jul 9, 12:12 am, Sean Corfield seancorfi...@gmail.com wrote: Have you profiled your code to determine where the performance bottlenecks really are? In Java applications, even large amounts of transient memory usage are not indicative of performance problems - that's kind of the point with automatically managed memory and garbage collection systems... Sean On Fri, Jul 8, 2011 at 12:47 PM, cran1988 rmanolis1...@hotmail.com wrote: I love Clojure ,but Clojure sucks a lot of memory and that frustrates me ! I am looking forward to find a way to put mutability in my code the same way i put immutable data structures. For example imagine ~[ 1 2 3 4 ] to be mutable vector and every semicolon that have this ~ in front to be mutable. But I dont know from where to start , can you give me some tips ? Maybe i will create a fork of the compiler or a binding library based on java collection API I know that developers of the compiler will not like it . However if we succeed , then there is a future of clojure in androids and desktop aplication ! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
