Re: Expanding the Community Through Online Courses
On Thu, Sep 6, 2012 at 11:53 PM, Jorge Fiallega jorgefiall...@gmail.comwrote: I am kindly asking Rich Hickey, Stuart Halloway or some other big name to create a course like this in Clojure. That would be great! :) -- 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: edn
In Clojure, all Clojure files are utf-8. I assume that is also required in edn? (I think it should be) On Sep 7, 2012 2:01 AM, Rich Hickey richhic...@gmail.com wrote: I've started to document a subset of Clojure's data format in an effort to get it more widely used as a data exchange format, e.g. as an alternative to JSON. Please have a look: https://github.com/richhickey/edn Rich -- 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
`cljs.reader/read-string` on anonymous functions
Hello, Anonymous functions with #() notation (example below) expand using fn* by `clojure.core/read-string`, but in `cljs.reader/read-string` it throws an error: Argument passed to `cljs.reader/read-string`: #(do true) Error: Could not find tag parser for (do in (inst uuid queue) Is there a built-in tag parser for anonymous functions in ClojureScript? Thanks in advance for any pointers. Shantanu -- 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: A Performance Comparison of SBCL Clojure
Since my last message, I personally have only submitted a new faster Clojure program for the knucleotide problem on the Benchmarks Game site. I haven't checked whether other Clojure programs have been submitted in that time. For all of the benchmark machines below, I'd say don't worry about the pidigits problem. It is kind of an odd case. The Clojure program does not use the GNU gmp library for arbitrary precision integer arithmetic, but the Java program and several other languages do. You can stress out about that fact if you want. I don't. Life is too short. That problem simply shows the difference between Java BigInteger performance versus the GNU gmp library performance, not Clojure vs. Java. The rest of the problems I consider reasonably fair comparisons, although I'd bet money the Clojure run time of several can still be reduced with enough skill and persistence. Some day I'd like to have side by side performance comparisons of these programs versus the easier-to-write kind that someone is more likely to come up with on a first or second try, rather than the tweaked-out oddities of programs on the site. In a few months, perhaps. 32-bit 1 core Clojure vs. Java: http://shootout.alioth.debian.org/u32/benchmark.php?test=alllang=clojurelang2=java Only 2 problems (other than pidigits) have Clojure worse than 4x the Java time. I don't know why reverse-complement and fasta-redux are so bad relative to the Java programs, because the exact same programs are at most 4x slower on the 64-bit benchmark machines. Something weird performance-wise about those programs on 32-bit machines. 32-bit 4 core: http://shootout.alioth.debian.org/u32q/benchmark.php?test=alllang=clojure Only 3 problems (other than pidigits) worse than 4x the Java time. reverse-complement and fasta-redux have the same weird 32-bit performance weirdness as mentioned above, whatever that may be. fannkuch-redux is 5x the Java run time. 64-bit 1 core: http://shootout.alioth.debian.org/u64/benchmark.php?test=alllang=clojure 64-bit 4 core: http://shootout.alioth.debian.org/u64q/benchmark.php?test=alllang=clojure All Clojure programs within 4x the run time of the corresponding Java programs, averaging around 2.5x the run time of Java. Lesson I've learned: If you've got an inner loop of your program that you really really need to run faster, code it in Java, C, or even assembler. Use profiling tools to find those spots, rather than guessing where you think they might be. Hand-coded assembler can beat optimized C by a factor of 2 or more in many cases, but who wants to program in assembler? For that matter, who wants to write large programs in C? Andy On Aug 28, 2012, at 7:02 AM, Ben Mabey wrote: Thanks Andy for the insightful report! I knew you and others have worked hard on the benchmarks so this kind of analysis is very helpful. Thanks for all your work on them, Ben On 8/28/12 12:07 AM, Andy Fingerhut wrote: I've written several of the Clojure programs on the site. I'm not omniscient when it comes to writing efficient Clojure code, but I know a few of the techniques. Several, if not most, of the Clojure solutions already take advantage of mutable data structures, for example. There are some faster programs people have created for a few of the problems, but they haven't been submitted yet, due to lack of time/interest. I might get some of them submitted over the next several weeks. I suspect the average ratio of Clojure run time / Java run time can be brought closer to the range of x1 through x5 or so, rather than the current range of x2 through x12. It used to be in the range of x1 to x8 or so, but over the last year the Java program submissions have gotten faster while the Clojure ones haven't been improved, or not as much. Getting x1 or even x2 across all problems seems highly unlikely to me, but I'd be happy to be proved wrong. It is true that a few of the problems have very short run times for the Java programs that extra Clojure init time makes it difficult for them to compete (e.g. best Java run times for reverse-complement and fasta-redux problems are under 2 sec), but half of them take over 20 sec to complete using the Java programs, which should give both Java and Clojure programs plenty of time for JIT optimizations to take effect. The remaining differences are either differences in the algorithm or data structure in use, and/or the efficiency of the resulting byte codes from Java and Clojure compilers. As for memory used, Hello, world takes about 60 to 70 Mbytes of resident memory to complete, so no Clojure program will be below that. If you want thousands of separate JVMs running Clojure processes, each with a small memory footprint, I wouldn't recommend it, but I doubt anyone would want to do that. It is more fair to compare memory use for problems that require a larger amount of memory, e.g.
Re: edn
On Fri, Sep 7, 2012 at 3:01 AM, Rich Hickey richhic...@gmail.com wrote:
I've started to document a subset of Clojure's data format in an effort to
get it more widely used as a data exchange format, e.g. as an alternative to
JSON.
Please have a look:
https://github.com/richhickey/edn
Rich
A few questions or things I'm unclear on:
- The expected result of parsing { 1.0 :a, 1 :b, 1.0M :c } is unclear
to me. Since we're gonna have maps, some more information on expected
equality semantics of edn values is needed.
- nil is not a symbol. A parser seeing «(nil)» is expected to produce
a list of length one containing a single reference to nothing. The
collections used to represent the result of the parse must support
null elements (Google Guava's, for example, generally do not).
- edn is described as a textual format (sequence of characters). A
word on the expected encoding of serialized representations (sequence
of bytes) would be good. Mandate UTF-8?
- Are \u style Unicode escapes supported? In strings? elsewhere?
- Comments appear not to be supported. I know a deliberate choice was
made not to support comments as part of JSON. For use in configuration
files edited by humans, however, this is an inconvenience. Thoughts?
// Ben
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Re: Does moustache work with latest ring and clojure ?
If it hasn't been updated at this point, I think it is safe to say it isn't being maintained. I'd go with Compojure. It is pretty minimal too. If you really, really want moustache, it might not be hard to fork and update the deps. On Friday, September 7, 2012 12:51:37 AM UTC-5, Murtaza Husain wrote: Hi, Moustache seems to be a great library and I would like to use it for my next project (No offense to compojure :) ) . However it still lists clojure 1.1 and ring 0.2 as its dependencies (on clojars). Does moustache work with clojure 1.4 and ring 1.1.5 ? Also is it still being maintained ? Thanks, Murtaza -- 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: Does moustache work with latest ring and clojure ?
I'm using moustache for all my projects. The new ones too, with clojure 1.4+ and ring 1.0+ Works great, I'd recommend it. cheers -- 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: Does moustache work with latest ring and clojure ?
Append: you don't need to fork or update it, since it uses version ranges in its dependencies. -- 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
Possible bug in CLJS `case` with quoted symbols
Hello, In Clojure 1.4.0 REPL I noticed this: user= (let [a 'a] (case a nil :nil ' :amp :none)) :none user= (let [a '] (case a nil :nil ' :amp :none)) :amp user= (let [a 'b] (case a nil :nil 'b :b :none)) :b In the CLJS Rhino REPL I saw this: ClojureScript:cljs.user (let [a 'a] (case a nil :nil ' :amp :none)) :none ClojureScript:cljs.user (let [a '] (case a nil :nil ' :amp :none)) :none ClojureScript:cljs.user (let [a 'b] (case a nil :nil 'b :b :none)) :none If somebody confirms that it looks like a bug, I can file an issue. Shantanu -- 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: Fund raiser for our projects
Ok, I guess nobody is really interested in something like that... Never mind... On Wednesday, September 5, 2012 6:37:40 PM UTC+2, Simone Mosciatti wrote: Hi everybody, I get a little idea now that we are heading to Christmas. Would be nice to organize a little fund raiser to support our projects. We have a lot of great project, but first of all good documentation is not the norm. Then there are a lot of spot where we can improve-- I am thinking about web authentication, friends is great but the same author suggest to add security and a bunch of other type of authentication, but obviously there is more. I am making a personal project and I am find some sort of lack in any library I am using, however I don't have neither the time nor the knowledge to really improve the situation. Maybe the author of the library would have at least the knowledge so if we can raise some money to buy his/her time would be really nice, wouldn't ? Finally we should also involve the company that are using clojure ( http://dev.clojure.org/display/community/Clojure+Success+Stories more http://www.quora.com/Whos-using-Clojure-in-production ) to raise bigger money. I thought about and I have some idea how decide what project would get the -hypotetical- money. Anyway before to even think about how organize everything I want to know what the community think about that. It is possible ? It can be dangerous ? We shouldn't do that ? Thanks for the attention. Greets Simone Mosciatti -- 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: Does moustache work with latest ring and clojure ?
Herwig, I have noticed that moustache swallows any errors, is there a way so that any errors bubble up ? Thanks, Murtaza On Friday, September 7, 2012 2:35:07 PM UTC+5:30, Herwig Hochleitner wrote: Append: you don't need to fork or update it, since it uses version ranges in its dependencies. -- 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: Does moustache work with latest ring and clojure ?
2012/9/7 Murtaza Husain murtaza.hus...@sevenolives.com I have noticed that moustache swallows any errors, is there a way so that any errors bubble up ? I'm not sure what you mean, in my experiences exceptions thrown by handlers always bubble up. in this example (defn route-handler [req] (throw (clojure.lang.ExceptionInfo. Error))) (def server-handler (app [route] route-handler)) the exception would hit ring, when visiting /route, as it should. Can you post an example showing the erratic behavior? -- 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 ritz 0.4.0 release with nREPL debugger support
Hugo Duncan h...@hugoduncan.org writes: * ritz-swank corresponds to the previous ritz functionality and provides a swank server with debugger capabilities. How would you fire up a swank server from the REPL? I'm using the Maven and the clojure-maven-plugin, which has no (yet) goal for ritz or ritz-swank. But if I could just fire up a REPL and start the swank server there, that would help for the time being. Also: the Zi maven plugin has not catched up with ritz 0.4.0. I was trying to force it to use ritz-swank-0.4.0 but got an exception when doing 'mvn zi:ritz': InvocationTargetException: java.lang.RuntimeException: No such var: debug/breakpoint-list, compiling:(ritz/commands/contrib/ritz.clj:51) -Stefan -- 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
Could strint be variadic?
clojure.core.strint is a nice tool to have, but for longer strings the limitation of to a single argument becomes a problem. If I want to wrap my code to fit maximum line length, I cannot split the string argument into several string literals. Is there an existing way to deal with this, or could the macro be extended to receive more than one string argument? -- 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: Does moustache work with latest ring and clojure ?
What I mean is the exceptions dont show up in the browser. I see them in the server terminal. The browser will either show a blank screen or the last route that worked. Only when I go to the server terminal is when I see the stacktarce. So sometimes its misleading, even though I may see content on the screen, there was actually an error on the server side. On Friday, September 7, 2012 3:45:27 PM UTC+5:30, Herwig Hochleitner wrote: 2012/9/7 Murtaza Husain murtaza...@sevenolives.com javascript: I have noticed that moustache swallows any errors, is there a way so that any errors bubble up ? I'm not sure what you mean, in my experiences exceptions thrown by handlers always bubble up. in this example (defn route-handler [req] (throw (clojure.lang.ExceptionInfo. Error))) (def server-handler (app [route] route-handler)) the exception would hit ring, when visiting /route, as it should. Can you post an example showing the erratic behavior? -- 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: edn
On Sep 6, 2012, at 11:56 PM, David Nolen wrote:
On Thursday, September 6, 2012, Rich Hickey wrote:
I've started to document a subset of Clojure's data format in an effort to
get it more widely used as a data exchange format, e.g. as an alternative to
JSON.
Please have a look:
https://github.com/richhickey/edn
Rich
So will colons become whitespace in maps so the JSON using hordes have an
easy upgrade path? ;)
I was waiting for that :)
As we've discussed, I think they should be accepted between key and value
(whitespace is not quite right, not looking to support {a : : : b}).
One ambiguity created is
{foo :true} ;;boolean or keyword?
Rich
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Re: edn
On Sep 7, 2012, at 12:33 AM, Daniel Pittman wrote: On Thu, Sep 6, 2012 at 6:01 PM, Rich Hickey richhic...@gmail.com wrote: I've started to document a subset of Clojure's data format in an effort to get it more widely used as a data exchange format, e.g. as an alternative to JSON. Please have a look: https://github.com/richhickey/edn The current specification has two problems that have bitten us on other projects (and with other formats): it has no specified encoding for strings, and it has no native mechanism for binary data. It would be awesome if you could consider both in the format. Strings without encoding are an interoperability headache, even if they allow binary data - someone will forget to tag the data, or will just throw whatever random 8-bit encoding in, and problems arise. I'd like to simply specify UTF-8 for edn in toto. Strings with a specific encoding (like JSON and UTF-8) are great, but they can't carry binary, so something specific is needed - and hopefully something better than base64 into the string. Do you object to the size of base64, or the use of convention? edn is opposed to convention, since how do you know when to apply an approach to a particular string? That's the problem people have today with JSON - they cram things into strings but only know to deal with them from context. We're going to get a standard tagged literal for binary data, was considering: #bin base64data I'm interested in feedback on problems with that, or alternatives. Rich -- 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: Does moustache work with latest ring and clojure ?
In my experience, ring responds with 500 on error. You can use ring.middleware.stacktrace to make the error show up in the browser. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: edn
On Sep 7, 2012, at 4:36 AM, Ben Smith-Mannschott wrote:
On Fri, Sep 7, 2012 at 3:01 AM, Rich Hickey richhic...@gmail.com wrote:
I've started to document a subset of Clojure's data format in an effort to
get it more widely used as a data exchange format, e.g. as an alternative to
JSON.
Please have a look:
https://github.com/richhickey/edn
Rich
A few questions or things I'm unclear on:
- The expected result of parsing { 1.0 :a, 1 :b, 1.0M :c } is unclear
to me. Since we're gonna have maps, some more information on expected
equality semantics of edn values is needed.
Yes, on the todo list.
- nil is not a symbol. A parser seeing «(nil)» is expected to produce
a list of length one containing a single reference to nothing. The
collections used to represent the result of the parse must support
null elements (Google Guava's, for example, generally do not).
I've removed the word 'symbol' from the description. People targeting
collections that don't support nulls will have to create a Null object or
something similar. Remember, people will be targeting platforms that,
unfortunately, don't have symbols, or even integers sometimes, either.
- edn is described as a textual format (sequence of characters). A
word on the expected encoding of serialized representations (sequence
of bytes) would be good. Mandate UTF-8?
Yes.
- Are \u style Unicode escapes supported? In strings? elsewhere?
Could be.
- Comments appear not to be supported. I know a deliberate choice was
made not to support comments as part of JSON. For use in configuration
files edited by humans, however, this is an inconvenience. Thoughts?
Yes, coming, both ;comments and #_ discard
Rich
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Re: ANN ritz 0.4.0 release with nREPL debugger support
sthueb...@googlemail.com (Stefan Hübner) writes:
Hugo Duncan h...@hugoduncan.org writes:
* ritz-swank corresponds to the previous ritz functionality and provides
a swank server with debugger capabilities.
How would you fire up a swank server from the REPL?
On the REPL this works:
--8---cut here---start-8---
(require '[ritz.swank.socket-server :as swank])
(swank/start {:port 4005})
--8---cut here---end---8---
Works with vanilla SLIME. Cool!
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Re: Could strint be variadic?
On Sep 7, 2012, at 6:20 AM, Marko Topolnik wrote: clojure.core.strint is a nice tool to have, but for longer strings the limitation of to a single argument becomes a problem. If I want to wrap my code to fit maximum line length, I cannot split the string argument into several string literals. Is there an existing way to deal with this, or could the macro be extended to receive more than one string argument? Good idea; I've occasionally had long strings as well, but never took the time to make the small tweak to allow such things to be split up. This is now on master — https://github.com/clojure/core.incubator/commit/9f2590f2cf22c37ba66010983bf6eaf21a90084c — and 0.1.2-SNAPSHOT is available from Sonatype's OSS snapshots repo. Assuming no one shrieks about some serious problem, I'll cut a 0.1.2 release containing this enhancement later today. Cheers, - Chas -- 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: Could strint be variadic?
Interesting. Didn't know something like this existed. :) On Fri, Sep 7, 2012 at 5:06 PM, Chas Emerick c...@cemerick.com wrote: On Sep 7, 2012, at 6:20 AM, Marko Topolnik wrote: clojure.core.strint is a nice tool to have, but for longer strings the limitation of to a single argument becomes a problem. If I want to wrap my code to fit maximum line length, I cannot split the string argument into several string literals. Is there an existing way to deal with this, or could the macro be extended to receive more than one string argument? Good idea; I've occasionally had long strings as well, but never took the time to make the small tweak to allow such things to be split up. This is now on master — https://github.com/clojure/core.incubator/commit/9f2590f2cf22c37ba66010983bf6eaf21a90084c— and 0.1.2-SNAPSHOT is available from Sonatype's OSS snapshots repo. Assuming no one shrieks about some serious problem, I'll cut a 0.1.2 release containing this enhancement later today. Cheers, - Chas -- 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: `cljs.reader/read-string` on anonymous functions
This won't work, as ClojureScript doesn't includes a compiler in the runtime. You can't eval ClojureScript code at runtime and you can't read new anonymous functions in. On Fri, Sep 7, 2012 at 9:18 AM, Shantanu Kumar kumar.shant...@gmail.com wrote: Hello, Anonymous functions with #() notation (example below) expand using fn* by `clojure.core/read-string`, but in `cljs.reader/read-string` it throws an error: Argument passed to `cljs.reader/read-string`: #(do true) Error: Could not find tag parser for (do in (inst uuid queue) Is there a built-in tag parser for anonymous functions in ClojureScript? Thanks in advance for any pointers. Shantanu -- 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: Could strint be variadic?
This is now on master — https://github.com/clojure/core.incubator/commit/9f2590f2cf22c37ba66010983bf6eaf21a90084c— and 0.1.2-SNAPSHOT is available from Sonatype's OSS snapshots repo. Downloaded and confirmed that it works in my code. Assuming no one shrieks about some serious problem, I'll cut a 0.1.2 release containing this enhancement later today. If you do that, you may break the speed record on the Feature Requested--Feature Released response time :) Thanks! -Marko -- 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: Literate Programming in org-babel (ob-clojure.el) is broken under nrepl.el
Thanks, Tim. This looks great. For those of you who don't want to go digging through the thread, here's the summary: Step 1. Download nrepl-0.1.4-preview from Marmalade or MELPA (depends on clojure-mode 1.11). Step 2. Add this code to your .emacs file: ;; Patch ob-clojure to work with nrepl (declare-function nrepl-send-string-sync ext:nrepl (code optional ns)) (defun org-babel-execute:clojure (body params) Execute a block of Clojure code with Babel. (require 'nrepl) (with-temp-buffer (insert (org-babel-expand-body:clojure body params)) ((lambda (result) (let ((result-params (cdr (assoc :result-params params (if (or (member scalar result-params) (member verbatim result-params)) result (condition-case nil (org-babel-script-escape result) (error result) (plist-get (nrepl-send-string-sync (buffer-substring-no-properties (point-min) (point-max)) (cdr (assoc :package params))) :value Step 3. Get Literate! -- 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: A Performance Comparison of SBCL Clojure
On Friday, September 7, 2012 1:12:44 AM UTC-7, Andy Fingerhut wrote: Since my last message, I personally have only submitted a new faster Clojure program for the knucleotide problem on the Benchmarks Game site. I haven't checked whether other Clojure programs have been submitted in that time. Thanks Andy (and yes, yours was the only Clojure program contributed during that time). For all of the benchmark machines below, I'd say don't worry about the pidigits problem. It is kind of an odd case. The Clojure program does not use the GNU gmp library for arbitrary precision integer arithmetic, but the Java program and several other languages do. You can stress out about that fact if you want. I don't. Life is too short. That problem simply shows the difference between Java BigInteger performance versus the GNU gmp library performance, not Clojure vs. Java. Until someone contributes a Clojure program that makes use of that Java interface to GMP ;-) The rest of the problems I consider reasonably fair comparisons, although I'd bet money the Clojure run time of several can still be reduced with enough skill and persistence. Some day I'd like to have side by side performance comparisons of these programs versus the easier-to-write kind that someone is more likely to come up with on a first or second try, rather than the tweaked-out oddities of programs on the site. I do understand the appeal of a comparison between easier-to-write first-or-second-try kind of programs -- those programs should be easier to read and easier to understand. Then again, I think it strange to compare the performance of programs written as though performance didn't matter. When performance matters we re-write programs. pi-digits already provides an example -- the utterly naive Java example program (not so much idiomatic as idiotic) I contributed, and the Clojure pidigits programs. http://shootout.alioth.debian.org/u64q/program.php?test=pidigitslang=javaid=1 http://shootout.alioth.debian.org/u64q/program.php?test=pidigitslang=clojureid=2 Lesson I've learned: If you've got an inner loop of your program that you really really need to run faster, code it in Java, C, or even assembler. Use profiling tools to find those spots, rather than guessing where you think they might be. Hand-coded assembler can beat optimized C by a factor of 2 or more in many cases, but who wants to program in assembler? For that matter, who wants to write large programs in C? My guess is that there are plenty of programmers who are happy to write large programs in C ;-) best wishes, Isaac -- 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: Expanding the Community Through Online Courses
This is a story from the trenches of your every day developer: It's a story with a ridiculous sense of entitlement. Be sure to complete your Scala lessons. -- 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: redefining multimethods at the repl
2012/9/5 Stuart Halloway stuart.hallo...@gmail.com: I started a wiki page for this: http://dev.clojure.org/display/design/Never+Close+a+REPL If you have other REPL-reloading annoyances please add them there. Adding new dependencies to my Leiningen project. Solved by pomegranate ? I think I could add an experimental feature to CounterClockWise so that whenever the dependencies change, all the new dependencies are optimistically propagated to open REPLs associated with the project (maybe asking a user confirmation first). -- 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 ritz 0.4.0 release with nREPL debugger support
sthueb...@googlemail.com (Stefan Hübner) writes: Hugo Duncan h...@hugoduncan.org writes: * ritz-swank corresponds to the previous ritz functionality and provides a swank server with debugger capabilities. Also: the Zi maven plugin has not catched up with ritz 0.4.0. I was trying to force it to use ritz-swank-0.4.0 but got an exception when doing 'mvn zi:ritz': This should be fixed in zi 0.5.3, which I just pushed. Hugo -- 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: redefining multimethods at the repl
On Fri, Sep 7, 2012 at 9:56 AM, Laurent PETIT laurent.pe...@gmail.com wrote: 2012/9/5 Stuart Halloway stuart.hallo...@gmail.com: I started a wiki page for this: http://dev.clojure.org/display/design/Never+Close+a+REPL If you have other REPL-reloading annoyances please add them there. Adding new dependencies to my Leiningen project. Solved by pomegranate ? I think I could add an experimental feature to CounterClockWise so that whenever the dependencies change, all the new dependencies are optimistically propagated to open REPLs associated with the project (maybe asking a user confirmation first). Pomegranate can download dependencies and blindly add them to the classpath. It doesn't include any logic to track what jars are already there, so might add the same ones twice on successive calls. Also it doesn't help for moving between dependency trees, which might change a version. This is probably where optimistically comes in. A library built on top that can handle this stuff would be awesome. -- 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: Possible bug in CLJS `case` with quoted symbols
On Fri, Sep 7, 2012 at 5:26 AM, Shantanu Kumar kumar.shant...@gmail.com wrote: Hello, In Clojure 1.4.0 REPL I noticed this: user= (let [a 'a] (case a nil :nil ' :amp :none)) :none user= (let [a '] (case a nil :nil ' :amp :none)) :amp user= (let [a 'b] (case a nil :nil 'b :b :none)) :b In the CLJS Rhino REPL I saw this: ClojureScript:cljs.user (let [a 'a] (case a nil :nil ' :amp :none)) :none ClojureScript:cljs.user (let [a '] (case a nil :nil ' :amp :none)) :none ClojureScript:cljs.user (let [a 'b] (case a nil :nil 'b :b :none)) :none If somebody confirms that it looks like a bug, I can file an issue. Shantanu Looks like a bug. -- 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 ritz 0.4.0 release with nREPL debugger support
Impressive, (as always,) Hugo. g On Wednesday, September 5, 2012 1:45:41 PM UTC-7, Hugo Duncan wrote: ritz started life as a swank server for emacs SLIME. With this release it has evolved into several components: * ritz-nrepl provides both nREPL middleware, that can be used in any nREPL server (and any client), and a debugger for use with nrepl.el, the emacs client for nREPL. The nrepl middleware provide the complete, doc, javadoc, apropos and describe-symbol nREPL operations. * ritz-swank corresponds to the previous ritz functionality and provides a swank server with debugger capabilities. * ritz-debugger provides a library for using the JVM JPDA debugger classes from clojure. * ritz-repl-utils provides a library of functions, used to provide common repl behaviour between ritz-nrepl and ritz-swank. This is also independent of emacs. The project can be found at https://github.com/pallet/ritz Hugo -- 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: Browser as an Evaluation Environment error
On Thu, Sep 6, 2012 at 10:29 AM, goracio felix...@gmail.com wrote: Hi I try to follow this guide https://github.com/clojure/clojurescript/wiki/The-REPL-and-Evaluation-Environments and get an error No 'xpc' param provided to chid iframe when loading http://localhost:9000/repl and my clojurescript repl hangs Clojure 1.4.0 user= (require '[cljs.repl :as repl]) nil user= (require '[cljs.repl.browser :as browser]) nil user= (def env (browser/repl-env)) #'user/env user= (repl/repl env) Type: :cljs/quit to quit ClojureScript:cljs.user (+ 1 1) what could be wrong with this ? I just tried this with master, it seems to work fine. Sometimes you need to refresh the browser. I'm assuming you are using master and that you have bootstrapped? 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: edn
On Thursday, September 6, 2012 8:31:59 PM UTC-7, Weber, Martin S wrote: The question that's left for me is: why vectors and lists? I mean, from a data format perspective, and a non-clojure implementor, I'm not sure the distinction makes sense. After all for the _data format_, in its serialized form, the vector will not be a random access structure. It has to be deserialized, and access to an element will have linear time complexity. Again, I understand its relevance from the clojure perspective. Is this just too important for edn's current implementor, clojure ? a) This is just a feedback draft, and having both vectors and lists may not be a grand commitment so much as a proposal. b) Every format will involve a tradeoff between how much is baked in as a required primitive and how much is added via the extensibility mechanism, in this case tags. Deciding whether to include both lists and vectors is just adjusting the line between whether the edn library provider does more work and the edn library user does less work, or vice versa. Again, it's just a line in the sand and there will always be borderline cases of what different people consider must-have. c) Yes, if clojure and datomic use both lists and vectors frequently enough and in different enough capacities, they can legitimately desire to have both capabilities built into their interchange format, particularly if it makes it concise and convenient to communicate with clojure/datomic (instead, for example, of having to type `#list ()` all the time). It doesn't need to be a universally minimalist generic format, and it _does_ need to be a format simple enough for other languages/ecosystems to implement so that they can communicate with clojure/datomic. These constraints seem sufficient to want to push the edn decisions close to where they are in the proposal. Like most other real world formats, there is a real use case that this one has in mind even if it's not fully abstractly general. -- 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: edn
Hi folks, I put some feedback up in a Hacker News comment http://news.ycombinator.com/item?id=4487588, but it probably makes sense to reproduce it here too, where comments will be seen. [By the way, Rich, I don’t use Clojure (... yet ...), but your Stu’s talks are always an inspiration, and I send links to all my friends. Keep doing them!] Cheers, Jacob Rus * * * Nice advantages over JSON: more compact, easier to pretty print, includes an integer type, non-string map keys, has a nice built-in extension mechanism (which is much more elegant than any ad-hoc thing that JSON can support). Things that probably make sense coming from Clojure, but seem somewhat unnecessary for a general purpose data interchange format: explicit character type (as compared to length 1 strings (which could optionally use the extension mechanism if necessary)), separate types for vectors and lists (seems like the extension mechanism could handle this if it’s ever necessary; to some extent this criticism holds for sets too, but those are also more independently useful). One type not included that I find useful: some kind of raw string wherein backslashes are interpreted literally, and double escapes aren’t required all over the place. Possible point of confusion that should be spelled out more explicitly: by the grammar provided, a floating point number requires an explicit leading digit. That is, '0.5' cannot be spelled '.5'. (Should an implementation accept '.5' as a number, or reject it as badly formed?) Also, does a floating-point number may have the suffix M to indicate that exact precision is desired mean that it should be interpreted as a decimal number? Might be worth saying that directly. It would be nice to see a bit more guidance about Symbols are used to represent identifiers, and should map to something other than strings, if possible. Perhaps this could include examples of what Rich Hickey al. think would be useful interpretations in JavaScript and Python (to pick two obvious popular examples). Most of all, it would be nice to see a clear explicit treatment of Unicode for strings/symbols (I’d recommend utf-8 here), including possible ways of escaping code points in strings. Confusions about Unicode are one of the main points of incompatibility between JSON implementations, and the JSON spec has more to say about the subject than this current spec does. One nice built-in tag to add: base64 raw data, using one of the typical base64 encodings, which should be described in the spec to avoid any confusion. Question: if a tagged element is considered a unit, can another tag be put in front of one? That is, something along the lines of '#outer_tag #inner_tag built-in element', where in the code which interprets the file, whatever object is produced by the inner_tag's extension is sent as input to the outer_tag's? It’s worth clarifying this so that implementors make sure to add the case to their test suites. -- 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: A Performance Comparison of SBCL Clojure
Just wanted to say thanks for putting in all the work on the shootout programs, Andy. On Friday, September 7, 2012 1:12:44 AM UTC-7, Andy Fingerhut wrote: All Clojure programs within 4x the run time of the corresponding Java programs, averaging around 2.5x the run time of Java. That's pretty darn good. Lesson I've learned: If you've got an inner loop of your program that you really really need to run faster, code it in Java, C, or even assembler. Use profiling tools to find those spots, rather than guessing where you think they might be. Agreed. -S -- 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: edn
On Fri, Sep 7, 2012 at 3:45 AM, Rich Hickey richhic...@gmail.com wrote: On Sep 7, 2012, at 12:33 AM, Daniel Pittman wrote: On Thu, Sep 6, 2012 at 6:01 PM, Rich Hickey richhic...@gmail.com wrote: I've started to document a subset of Clojure's data format in an effort to get it more widely used as a data exchange format, e.g. as an alternative to JSON. Please have a look: https://github.com/richhickey/edn The current specification has two problems that have bitten us on other projects (and with other formats): it has no specified encoding for strings, and it has no native mechanism for binary data. It would be awesome if you could consider both in the format. Strings without encoding are an interoperability headache, even if they allow binary data - someone will forget to tag the data, or will just throw whatever random 8-bit encoding in, and problems arise. I'd like to simply specify UTF-8 for edn in toto. *nod* Strings with a specific encoding (like JSON and UTF-8) are great, but they can't carry binary, so something specific is needed - and hopefully something better than base64 into the string. Do you object to the size of base64, or the use of convention? edn is opposed to convention, since how do you know when to apply an approach to a particular string? That's the problem people have today with JSON - they cram things into strings but only know to deal with them from context. The use of convention is by far the worst problem, for exactly the reasons you identify. The size expansion and encode/decode phase for base64 are small annoyances shipping binary data through JSON, and would be so here, so while I would like something that allowed raw binary content unmodified, base64 would be fine. We're going to get a standard tagged literal for binary data, was considering: #bin base64data I'm interested in feedback on problems with that, or alternatives. #base64 feels more explicit to me, since it would also allow for other specific encodings later, but that seems reasonable enough to me. It makes explicit the form - and is what we had through YAML, which was successfully used. -- Daniel Pittman ♲ Made with 100 percent post-consumer electrons -- 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: Does moustache work with latest ring and clojure ?
Herwig,
Thanks for the detailed answers below.
(def my-app (app
wrap-stacktrace
(wrap-file resources/public/)
[page] (- (chrome page) response constantly)
[a b] (- a b response constantly))
[] (- Nothing was found response (status 404) constantly)))
I have added another route /a/b, which also returns Nothing was found
instead of a b ?
2012/9/7 Murtaza Husain murtaza.hus...@sevenolives.com
(def my-app (app
wrap-stacktrace
(wrap-file resources/public/)
[page] (- (chrome page) response constantly)
[] Nothing was found))
I am getting a null pointer error on the route /. Why is that ? Shouldnt
it give a 404 or something. Also why isnt it caught by the last route [] ?
Hi Murtaza,
moustache handlers must be functions. So to return a string as a response,
the last line would have to be
[] (constantly Nothing was found)
That however still wouldn't do what you expect, because the value returned
from a handler has to be a response map like
[] (constantly {:status 404 :body Nothing was found})
or
[] (- Nothing was found response (status 404) constantly)
The auto response wrapping, that allows you to just return strings, is a
convenience feature living in compojure, not ring.
If that resolves your problem, please consider reposting to the list, so
that others may benefit.
kind regards
On Friday, September 7, 2012 4:18:28 PM UTC+5:30, Herwig Hochleitner wrote:
In my experience, ring responds with 500 on error.
You can use ring.middleware.stacktrace to make the error show up in the
browser.
--
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Re: Does moustache work with latest ring and clojure ?
(defn route-handler [req] (throw (clojure.lang.ExceptionInfo. Error))) OT - IMHO you should use ex-info (and its counterpart ex-data) instead of the direct Java constructor. Regards, BG -- Baishampayan Ghose b.ghose at gmail.com -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Possible bug in CLJS `case` with quoted symbols
Looks like a bug. Thanks, I filed the issue here: http://dev.clojure.org/jira/browse/CLJS-376 Shantanu -- 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: Question about sets
Once again, thanks Andy! I've added my feedback there (http://dev.clojure.org/display/design/Allow+duplicate+map+keys+and+set+elements) Patches implementing that are welcome. Rich On Sep 5, 2012, at 1:57 PM, Andy Fingerhut wrote: I've copied and pasted Mark's arguments to the Wiki page here: http://dev.clojure.org/display/design/Allow+duplicate+map+keys+and+set+elements Andy On Sep 5, 2012, at 6:41 AM, Stuart Halloway wrote: Hi Mark, Thanks for extracting a summary of the conversation so far, and +1 for making sure this is on the wiki. Stu On Tue, Sep 4, 2012 at 9:30 AM, Andy Fingerhut andy.finger...@gmail.com wrote: I'm just trying to get the argument for change as clearly as possible. The major bullet points: 1. It's a bug that should be fixed. The change to throw-on-duplicate behavior for sets in 1.3 was a breaking change that causes a runtime error in previously working, legitimate code. -- 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: edn
I addressed this here: http://news.ycombinator.com/item?id=4489330 On Sep 7, 2012, at 2:36 AM, Elliot wrote: On Thursday, September 6, 2012 8:31:59 PM UTC-7, Weber, Martin S wrote: The question that's left for me is: why vectors and lists? I mean, from a data format perspective, and a non-clojure implementor, I'm not sure the distinction makes sense. After all for the _data format_, in its serialized form, the vector will not be a random access structure. It has to be deserialized, and access to an element will have linear time complexity. Again, I understand its relevance from the clojure perspective. Is this just too important for edn's current implementor, clojure ? a) This is just a feedback draft, and having both vectors and lists may not be a grand commitment so much as a proposal. b) Every format will involve a tradeoff between how much is baked in as a required primitive and how much is added via the extensibility mechanism, in this case tags. Deciding whether to include both lists and vectors is just adjusting the line between whether the edn library provider does more work and the edn library user does less work, or vice versa. Again, it's just a line in the sand and there will always be borderline cases of what different people consider must-have. c) Yes, if clojure and datomic use both lists and vectors frequently enough and in different enough capacities, they can legitimately desire to have both capabilities built into their interchange format, particularly if it makes it concise and convenient to communicate with clojure/datomic (instead, for example, of having to type `#list ()` all the time). It doesn't need to be a universally minimalist generic format, and it _does_ need to be a format simple enough for other languages/ecosystems to implement so that they can communicate with clojure/datomic. These constraints seem sufficient to want to push the edn decisions close to where they are in the proposal. Like most other real world formats, there is a real use case that this one has in mind even if it's not fully abstractly general. -- 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
clojure library code fails to load resource file when called from java
https://github.com/ftravers/PublicDocumentation/blob/master/clojure/resource-file.md Reading a resource file File/directory layout: $ tree . |-- pom.xml |-- project.clj |-- README.md`-- src |-- test_project | `-- Core.clj `-- test.txt Setting up this to be a library for use in Java. Here is my project.clj and my Core.clj (defproject test-package/test-project 0.1.0-SNAPSHOT :plugins [[lein-swank 1.4.4]] :dependencies [[org.clojure/clojure 1.4.0]] :main test-project.Core) (ns test-project.Core (:gen-class :methods [[readFile [] String]]))(defn read-file [] (slurp (.getFile (clojure.java.io/resource test.txt(defn -readFile [this] (read-file)) Now if I try to use this in the REPL test-project.Core (read-file)abc\n Works no problem. However when I try this from Java: Core c = new Core();c.readFile(); A FileNotFound exception is thrown: java.io.FileNotFoundException: /home/fenton/.m2/repository/test-package/test-project/0.1.0-SNAPSHOT/test-project-0.1.0-SNAPSHOT.jar!/test.txt (No such file or directory) Whereas: InputStream stream =this.getClass().getClassLoader().getResourceAsStream(test.txt); Finds the file no problem. So whats the problem? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: clojure library code fails to load resource file when called from java
slurp is happy to slurp from a URL, no need for the (.getFile) call on the resource. In other words, the file returned for a resource that's been compiled into a jar isn't very useful. Stick with the URL returned bye clojure.java.io/resource. Dave On Fri, Sep 7, 2012 at 10:58 AM, fenton fenton.trav...@gmail.com wrote: https://github.com/ftravers/PublicDocumentation/blob/master/clojure/resource-file.md Reading a resource file File/directory layout: $ tree . |-- pom.xml |-- project.clj |-- README.md `-- src |-- test_project | `-- Core.clj `-- test.txt Setting up this to be a library for use in Java. Here is my project.clj and my Core.clj (defproject test-package/test-project 0.1.0-SNAPSHOT :plugins [[lein-swank 1.4.4]] :dependencies [[org.clojure/clojure 1.4.0]] :main test-project.Core) (ns test-project.Core (:gen-class :methods [[readFile [] String]])) (defn read-file [] (slurp (.getFile (clojure.java.io/resource test.txt (defn -readFile [this] (read-file)) Now if I try to use this in the REPL test-project.Core (read-file) abc\n Works no problem. However when I try this from Java: Core c = new Core(); c.readFile(); A FileNotFound exception is thrown: java.io.FileNotFoundException: /home/fenton/.m2/repository/test-package/test-project/0.1.0-SNAPSHOT/test-project-0.1.0-SNAPSHOT.jar!/test.txt (No such file or directory) Whereas: InputStream stream = this.getClass().getClassLoader().getResourceAsStream(test.txt); Finds the file no problem. So whats the problem? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: clojure library code fails to load resource file when called from java
Thanks so much Dave that was it! :) On Friday, September 7, 2012 11:08:50 AM UTC-7, daveray wrote: slurp is happy to slurp from a URL, no need for the (.getFile) call on the resource. In other words, the file returned for a resource that's been compiled into a jar isn't very useful. Stick with the URL returned bye clojure.java.io/resource. Dave On Fri, Sep 7, 2012 at 10:58 AM, fenton fenton@gmail.comjavascript: wrote: https://github.com/ftravers/PublicDocumentation/blob/master/clojure/resource-file.md Reading a resource file File/directory layout: $ tree . |-- pom.xml |-- project.clj |-- README.md `-- src |-- test_project | `-- Core.clj `-- test.txt Setting up this to be a library for use in Java. Here is my project.clj and my Core.clj (defproject test-package/test-project 0.1.0-SNAPSHOT :plugins [[lein-swank 1.4.4]] :dependencies [[org.clojure/clojure 1.4.0]] :main test-project.Core) (ns test-project.Core (:gen-class :methods [[readFile [] String]])) (defn read-file [] (slurp (.getFile (clojure.java.io/resource test.txt (defn -readFile [this] (read-file)) Now if I try to use this in the REPL test-project.Core (read-file) abc\n Works no problem. However when I try this from Java: Core c = new Core(); c.readFile(); A FileNotFound exception is thrown: java.io.FileNotFoundException: /home/fenton/.m2/repository/test-package/test-project/0.1.0-SNAPSHOT/test-project-0.1.0-SNAPSHOT.jar!/test.txt (No such file or directory) Whereas: InputStream stream = this.getClass().getClassLoader().getResourceAsStream(test.txt); Finds the file no problem. So whats the problem? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To 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: Does moustache work with latest ring and clojure ?
Am 07.09.2012 19:06 schrieb Murtaza Husain murtaza.hus...@sevenolives.com
:
Herwig,
Thanks for the detailed answers below.
(def my-app (app
wrap-stacktrace
(wrap-file resources/public/)
[page] (- (chrome page) response constantly)
[a b] (- a b response constantly))
[] (- Nothing was found response (status 404)
constantly)))
I have added another route /a/b, which also returns Nothing was found
instead of a b ?
Odd. That should work. Are working with live eval (swank)? If so make sure
ring server picks up your updated handler, by passing in its var #'my-app,
just as you would do with compojure.
2012/9/7 Murtaza Husain murtaza.hus...@sevenolives.com
(def my-app (app
wrap-stacktrace
(wrap-file resources/public/)
[page] (- (chrome page) response constantly)
[] Nothing was found))
I am getting a null pointer error on the route /. Why is that ?
Shouldnt it give a 404 or something. Also why isnt it caught by the last
route [] ?
Hi Murtaza,
moustache handlers must be functions. So to return a string as a
response, the last line would have to be
[] (constantly Nothing was found)
That however still wouldn't do what you expect, because the value
returned from a handler has to be a response map like
[] (constantly {:status 404 :body Nothing was found})
or
[] (- Nothing was found response (status 404) constantly)
The auto response wrapping, that allows you to just return strings, is a
convenience feature living in compojure, not ring.
If that resolves your problem, please consider reposting to the list, so
that others may benefit.
kind regards
On Friday, September 7, 2012 4:18:28 PM UTC+5:30, Herwig Hochleitner
wrote:
In my experience, ring responds with 500 on error.
You can use ring.middleware.stacktrace to make the error show up in the
browser.
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Re: Does moustache work with latest ring and clojure ?
Ah, didn't know about those. Thanks for the hint! On Topic: Issue has been resolved in a private exchange. kind regards Am 07.09.2012 19:10 schrieb Baishampayan Ghose b.gh...@gmail.com: (defn route-handler [req] (throw (clojure.lang.ExceptionInfo. Error))) OT - IMHO you should use ex-info (and its counterpart ex-data) instead of the direct Java constructor. Regards, BG -- Baishampayan Ghose b.ghose at gmail.com -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To 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 Zi 0.5.4
Zi is a maven plugin for working with clojure. The 0.5.4 release adds support for the following goals: * nrepl Launches a vanilla nREPL server * ritz-nrepl Launches an nREPL server with debugger. * ritz Launches a swank server with debugger. Now supports ritz-swank 0.4.1. The project can be found at https://github.com/pallet/zi Hugo -- 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 Ritz 0.4.1
Ritz is a collection of repl servers, middleware and repl utility functions, supporting nREPL and swank/slime. The repl utilities can be used from any repl. The 0.4.1 release is mainly a bug fix release. * Fixes an issue with in-ns not working correctly * Fixes jack-in support for ritz-swank * Fixes breakpoint support Many thanks to Jeff Palmucci and @cola_zero. Ritz is on github: https://github.com/pallet/ritz Hugo -- 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: Does moustache work with latest ring and clojure ?
This isn't actually a good thing: http://nelsonmorris.net/2012/07/31/do-not-use-version-ranges-in-project-clj.html FWIW, even if it didn't use version ranges, the version of Clojure and other dependencies that you use would take precedence over the ones it specifies. On Friday, September 7, 2012 4:05:07 AM UTC-5, Herwig Hochleitner wrote: Append: you don't need to fork or update it, since it uses version ranges in its dependencies. -- 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: Question about sets
On Fri, Sep 7, 2012 at 10:49 AM, Rich Hickey richhic...@gmail.com wrote: I've added my feedback there (http://dev.clojure.org/display/design/Allow+duplicate+map+keys+and+set+elements) Thanx Rich! So the recommendation is: * set/map literals with duplicates are invalid (status quo) * hash-set/hash-map should change (to last key wins, as if conj'd/assoc'd) * sorted-set/sorted-map should not change (last key wins, as if conj'd/assoc'd) * array-map should not change (throws on dupes)? Highlighting that last one since it's not mentioned on the wiki and would then be the odd one out but perhaps there's a good reason? -- 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) -- 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: Does moustache work with latest ring and clojure ?
For the record, Moustache does support the special case of returning a
literal string response:
user (run-jetty (app [hi] Hello, world!\n) {:port :join? false})
$ curl localhost:/hi
Hello, world!
On Friday, September 7, 2012 7:06:42 PM UTC+2, Murtaza Husain wrote:
Herwig,
Thanks for the detailed answers below.
Hi Murtaza,
moustache handlers must be functions. So to return a string as a response,
the last line would have to be
[] (constantly Nothing was found)
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How create dynamic vars programmatically?
(intern *ns* 's) creates a non dynamic variable, but how do I achieve (def ^:dynamic s) programmatically? Thanks, Marc -- 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 create dynamic vars programmatically?
.setDynamic on the var. This is implementation detail though... Sent from phone. Please excuse brevity. On 7 Sep 2012 13:04, Marc Dzaebel mdzae...@web.de wrote: (intern *ns* 's) creates a non dynamic variable, but how do I achieve (def ^:dynamic s) programmatically? Thanks, Marc -- 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 create dynamic vars programmatically?
.setDynamic on the var. Works fine! See also http://blog.zolotko.me/2012/06/making-variable-dynamic-in-clojure.html. Should be documented ... Great help, thanks, Marc -- 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
clojure.core.incubator 0.1.2 released (was: Re: Could strint be variadic?)
On Sep 7, 2012, at 9:34 AM, Marko Topolnik wrote: This is now on master — https://github.com/clojure/core.incubator/commit/9f2590f2cf22c37ba66010983bf6eaf21a90084c — and 0.1.2-SNAPSHOT is available from Sonatype's OSS snapshots repo. Downloaded and confirmed that it works in my code. Assuming no one shrieks about some serious problem, I'll cut a 0.1.2 release containing this enhancement later today. If you do that, you may break the speed record on the Feature Requested--Feature Released response time :) I aim to please. ;-) Besides, it was a good sense-making idea to begin with... [org.clojure/core.incubator 0.1.2] has been released; it'll take a few hours for it to show up in Maven Central. The only change is that clojure.core.strint/ is now variadic. The docs haven't been refreshed yet, but you can see an example of this in the last expression in the docstring here: https://github.com/clojure/core.incubator/blob/master/src/main/clojure/clojure/core/strint.clj#L49 Cheers, - Chas -- 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 Zi 0.5.4
Hi Hugo, I'm not able to get the latest version of Zi to work. It seems to be having a problem resolving a couple of it's dependencies: [ERROR] Failed to execute goal org.cloudhoist.plugin:zi:0.5.4:compile (default-cli) on project test: Execution default-cli of goal org.cloudhoist.plugin:zi:0.5.4:compile failed: Plugin org.cloudhoist.plugin:zi:0.5.4 or one of its dependencies could not be resolved: The following artifacts could not be resolved: classlojure:classlojure:jar:0.6.5, leiningen-core:leiningen-core:jar:2.0.0-preview4 pom and maven stacktrace can be found here: https://gist.github.com/3669520 The last version of Zi I was using was 0.4.4 Let me know if you need anything more info. Looking forward to trying this out. Tom Hickey On Friday, September 7, 2012 2:52:23 PM UTC-4, Hugo Duncan wrote: Zi is a maven plugin for working with clojure. The 0.5.4 release adds support for the following goals: * nrepl Launches a vanilla nREPL server * ritz-nrepl Launches an nREPL server with debugger. * ritz Launches a swank server with debugger. Now supports ritz-swank 0.4.1. The project can be found at https://github.com/pallet/zi Hugo -- 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 create dynamic var programmatically
works, thanks! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Question about sets
On Sep 7, 2012, at 3:35 PM, Sean Corfield wrote: On Fri, Sep 7, 2012 at 10:49 AM, Rich Hickey richhic...@gmail.com wrote: I've added my feedback there (http://dev.clojure.org/display/design/Allow+duplicate+map+keys+and+set+elements) Thanx Rich! So the recommendation is: * set/map literals with duplicates are invalid (status quo) * hash-set/hash-map should change (to last key wins, as if conj'd/assoc'd) * sorted-set/sorted-map should not change (last key wins, as if conj'd/assoc'd) * array-map should not change (throws on dupes)? Highlighting that last one since it's not mentioned on the wiki and would then be the odd one out but perhaps there's a good reason? No, array-map should be the same too. -- 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: Create dynamic vars programmatically
Sorry for delay, I had difficulties with Google Groups ... posted several times. Thanks about the hint about *with-local-vars*, Marc -- 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: edn
On Thu, Sep 6, 2012 at 8:26 PM, Weber, Martin S martin.we...@nist.gov wrote: The question that's left for me is: why vectors and lists? I mean, from a data format perspective, and a non-clojure implementor, I'm not sure the distinction makes sense. After all for the _data format_, in its serialized form, the vector will not be a random access structure. It has to be deserialized, and access to an element will have linear time complexity. Again, I understand its relevance from the clojure perspective. Is this just too important for edn's current implementor, clojure ? I think it's a useful hint to allow sequences of data that can be inflated into data structures supporting random access in constant time vs those that don't. Many languages have both list-like collections AND array-like collections. -- 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) -- 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: edn
On Fri, Sep 7, 2012 at 3:40 AM, Rich Hickey richhic...@gmail.com wrote:
On Sep 6, 2012, at 11:56 PM, David Nolen wrote:
So will colons become whitespace in maps so the JSON using hordes have an
easy upgrade path? ;)
{foo :true} ;;boolean or keyword?
Requiring whitespace after the colon doesn't seem a huge burden to me
(given that the format will support :keywords at all) although I know
that doesn't help the JSON folks.
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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: edn
(sorry for top-posting) Languages have random access / sequential data structures. Sure. Languages. This is a data format, not a language. Why should I not inflate a edn-list into a vector in my language? What if I don't have a random access thing handy (because, e.g., I only have trees/tables, as e.g. tcl where arrays are actually hashtables with integer keys)? Please do read my post again. I'm aware of the clojure link etc. etc. etc. We're talking about a data format here. Regards, -Martin From: clojure@googlegroups.com [clojure@googlegroups.com] On Behalf Of Sean Corfield [seancorfi...@gmail.com] Sent: Friday, September 07, 2012 18:44 To: clojure@googlegroups.com Subject: Re: edn On Thu, Sep 6, 2012 at 8:26 PM, Weber, Martin S martin.we...@nist.gov wrote: The question that's left for me is: why vectors and lists? I mean, from a data format perspective, and a non-clojure implementor, I'm not sure the distinction makes sense. After all for the _data format_, in its serialized form, the vector will not be a random access structure. It has to be deserialized, and access to an element will have linear time complexity. Again, I understand its relevance from the clojure perspective. Is this just too important for edn's current implementor, clojure ? I think it's a useful hint to allow sequences of data that can be inflated into data structures supporting random access in constant time vs those that don't. Many languages have both list-like collections AND array-like collections. -- 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) -- 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: Question about sets
On the wiki page, Rich Hickey wrote: * If you think a month is too long to get a response to your needs, from a bunch of very busy volunteers, you need to chill out * just because you decided to bring it up doesn't mean everyone else needs to drop what they are doing For the record, I don't really care how long it takes to get a response. Unfortunately, there's no observable way to know whether an issue is in some queue to be considered at a future date, or whether an issue has merely gone unnoticed, or whether an issue has been deemed unworthy of further consideration. In any case, thanks for the thoughtful, well-considered response to the issue on the wiki. --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
Re: edn
On Fri, Sep 7, 2012 at 3:57 PM, Weber, Martin S martin.we...@nist.gov wrote: Sure. Languages. This is a data format, not a language. But languages will be doing the serialization / deserialization so this is relevant. Why should I not inflate a edn-list into a vector in my language? What if I don't have a random access thing handy I said it was a useful _hint_ and, for languages where there is a difference between vector and list, it's worth having. Please do read my post again. Perhaps you should read mine again instead of being snide? -- 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) -- 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: redefining multimethods at the repl
Stuart Halloway stuart.hallo...@gmail.com writes: I started a wiki page for this: http://dev.clojure.org/display/design/Never+Close+a+REPL I believe these problems could be entirely solved in a contrib library of helper functions for REPL development. This a significantly better than making changes to Clojure, which must pass a high bar and be carefully assessed for possible affects on exiting code. In the case of multimethods specifically, isn't this just a band-aid workaround that doesn't address the actual problem? -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: ANN Zi 0.5.4
Hello Tom, Tom Hickey thic...@gmail.com writes: I'm not able to get the latest version of Zi to work. It seems to be having a problem resolving a couple of it's dependencies: [ERROR] Failed to execute goal org.cloudhoist.plugin:zi:0.5.4:compile (default-cli) on project test: Execution default-cli of goal org.cloudhoist.plugin:zi:0.5.4:compile failed: Plugin org.cloudhoist.plugin:zi:0.5.4 or one of its dependencies could not be resolved: The following artifacts could not be resolved: classlojure:classlojure:jar:0.6.5, leiningen-core:leiningen-core:jar:2.0.0-preview4 pom and maven stacktrace can be found here: https://gist.github.com/3669520 Thanks for the detailed report. This suggests that clojars isn't being picked up. Adding it as a pluginRepository to the pom as a workaround seems to get things moving. pluginRepository idclojars/id urlhttp://clojars.org/repo/url /pluginRepository Hugo -- 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 Zi 0.5.4
Hi Hugo, Adding clojars as a pluginRepository worked. Thanks! Tom On Friday, September 7, 2012 7:58:23 PM UTC-4, Hugo Duncan wrote: Hello Tom, Tom Hickey thi...@gmail.com javascript: writes: I'm not able to get the latest version of Zi to work. It seems to be having a problem resolving a couple of it's dependencies: [ERROR] Failed to execute goal org.cloudhoist.plugin:zi:0.5.4:compile (default-cli) on project test: Execution default-cli of goal org.cloudhoist.plugin:zi:0.5.4:compile failed: Plugin org.cloudhoist.plugin:zi:0.5.4 or one of its dependencies could not be resolved: The following artifacts could not be resolved: classlojure:classlojure:jar:0.6.5, leiningen-core:leiningen-core:jar:2.0.0-preview4 pom and maven stacktrace can be found here: https://gist.github.com/3669520 Thanks for the detailed report. This suggests that clojars isn't being picked up. Adding it as a pluginRepository to the pom as a workaround seems to get things moving. pluginRepository idclojars/id urlhttp://clojars.org/repo/url /pluginRepository Hugo -- 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 Zi 0.5.4
Tom Hickey thic...@gmail.com writes: I'm not able to get the latest version of Zi to work. It seems to be having a problem resolving a couple of it's dependencies: [ERROR] Failed to execute goal org.cloudhoist.plugin:zi:0.5.4:compile (default-cli) on project test: Execution default-cli of goal org.cloudhoist.plugin:zi:0.5.4:compile failed: Plugin org.cloudhoist.plugin:zi:0.5.4 or one of its dependencies could not be resolved: The following artifacts could not be resolved: classlojure:classlojure:jar:0.6.5, leiningen-core:leiningen-core:jar:2.0.0-preview4 I've just pushed zi 0.5.5 which should fix this. Hugo -- 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: edn
It just crossed my mind, in our latest product version, we have protocols extending lists, vectors and maps. I would hate very much to see lists converted to vectors because the spec does not support forwarding lists. The receiver would not be able to act on the decoded structure properly with this scenario. Ok, protocols are Clojure specific but this illustrates a subtle difference between sequential access versus random access that needs to be conveyed somehow. Is this too Clojure specific ? Maybe for the near future, what about in 5 years ? Want to consult Mrs Irma and her crystal ball to get an answer ? Luc P. You may want to distinguish between sequential versus random access, if your language supports both. If there is no such need in a given language, then the implementation can parse them to the same data structure. Why not meet the general case ? What's the cost ? You are not doing this processing by hand :) The too frequent problem in all these tools (XML, YAML, JSON, ...) is to have designed them with a narrow scope from the start. We ended up with an array of tools with each having flaws because every opened door was closed with statements like we will never need this, we cannot foresee why we would like to do this, Having data as the main scope may be too narrow. If I send a custom literal that will eventually is turned into a factory call, I am sending more than just data. I may send stuff that alter the behavior if the factory fn is this good design ? Maybe yes, maybe not. But who are we to judge ? Let's keep Rich think out of the box instead of trying to restrict him to the same sandbox as the other tools above. Luc P. (sorry for top-posting) Languages have random access / sequential data structures. Sure. Languages. This is a data format, not a language. Why should I not inflate a edn-list into a vector in my language? What if I don't have a random access thing handy (because, e.g., I only have trees/tables, as e.g. tcl where arrays are actually hashtables with integer keys)? Please do read my post again. I'm aware of the clojure link etc. etc. etc. We're talking about a data format here. Regards, -Martin From: clojure@googlegroups.com [clojure@googlegroups.com] On Behalf Of Sean Corfield [seancorfi...@gmail.com] Sentd: Friday, September 07, 2012 18:44 To: clojure@googlegroups.com Subject: Re: edn On Thu, Sep 6, 2012 at 8:26 PM, Weber, Martin S martin.we...@nist.gov wrote: The question that's left for me is: why vectors and lists? I mean, from a data format perspective, and a non-clojure implementor, I'm not sure the distinction makes sense. After all for the _data format_, in its serialized form, the vector will not be a random access structure. It has to be deserialized, and access to an element will have linear time complexity. Again, I understand its relevance from the clojure perspective. Is this just too important for edn's current implementor, clojure ? I think it's a useful hint to allow sequences of data that can be inflated into data structures supporting random access in constant time vs those that don't. Many languages have both list-like collections AND array-like collections. -- 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) -- 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 -- Softaddictslprefonta...@softaddicts.ca sent by ibisMail from my ipad! -- 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: edn
Sure. Languages. This is a data format, not a language. Data formats do not exist in a vacuum. They are parsed by languages. Some may have a fine-grained distinction between lists, arrays/vectors and sets and some may not. Why should I not inflate a edn-list into a vector in my language? What's stopping you? As long as you provide a way to get back to the original formats that's up to you. People may not use your library if all of their (1 2 3)s become [1 2 3]s after passing through town. What if I don't have a random access thing handy I would care less about true random access than the ability to round-trip properly. -- 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: edn
Is this too Clojure specific ?
I wouldn't say so. By definition the definitions of list,
vector/array and set encompass the behavior in question. I think
people are getting too wrapped up by the textual representations where
the forms (1 2 3) [1 2 3] and #{1 2 3} look fairly similar. By nature
however, they're not as similar as they look.
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Re: edn
Java has arrays, lists, maps and sets, so does Ruby and Erlang.
If they were redundancies in these structures, can't see why these three still
maintain this distinction. It's probably a safe bet to say that we need to
convey these
nuances in edn somehow.
My question was meant as a preamble to the joke about asking Mrs Irma and
her crystal ball :)
As for the notation, I am happy that it is so terse, I can maintain my
daily code line throughput even as I slowly but surely decay behind my
keyboard...
Luc P.
Is this too Clojure specific ?
I wouldn't say so. By definition the definitions of list,
vector/array and set encompass the behavior in question. I think
people are getting too wrapped up by the textual representations where
the forms (1 2 3) [1 2 3] and #{1 2 3} look fairly similar. By nature
however, they're not as similar as they look.
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Re: A Performance Comparison of SBCL Clojure
+1 -- Andy, thanks. On Friday, September 7, 2012 at 11:32 AM, Stuart Sierra wrote: Just wanted to say thanks for putting in all the work on the shootout programs, Andy. On Friday, September 7, 2012 1:12:44 AM UTC-7, Andy Fingerhut wrote: All Clojure programs within 4x the run time of the corresponding Java programs, averaging around 2.5x the run time of Java. That's pretty darn good. Lesson I've learned: If you've got an inner loop of your program that you really really need to run faster, code it in Java, C, or even assembler. Use profiling tools to find those spots, rather than guessing where you think they might be. Agreed. -S -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com (mailto:clojure@googlegroups.com) Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com (mailto:clojure+unsubscr...@googlegroups.com) For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
algo.monad state-m fetch-val bug and efficiency issue
I've been using the state monad in algo.monad, and found what i think is a bug in the fetch-val function. There is also an efficiency issue with this function. I was unable to contact a maintainer of this library on irc (though i didn't try very hard), So here is a gist with problem statement and solutions for both issues. https://gist.github.com/3667614 Sacha -- 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
Bug in CLJS `symbol` with quoted symbol
Hello, I found this bug related to `symbol` and quoted symbols in CLJS. Explained below. In Clojure: user= (= 'a (symbol 'a)) true In CLJS: ClojureScript:cljs.user (= 'a (symbol 'a)) false Unless this is related to http://dev.clojure.org/jira/browse/CLJS-376 I can file a new issue for this. Somebody please let me know. Shantanu -- 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: PBI: Datomic-based wiki
I do find it interesting as I'm looking to put together a set of systems in
support of a not for profit broadband ISP (http://noisp.coop) here in
Australia where one of the required systems will be a wiki.
I'd love to and intend to utilise Clojure for the future versions of the
web site and support systems and being able to integrate the wiki as well
with your ideas of versioning and the appropriately expressed requirements
in this message
https://groups.google.com/d/msg/clojure/1an5fCRFYGc/V6s0hKxZI30J on being
able to attribute changes / authors to work is important to the wiki I'd
like to see in place for NoISP.
For instance:
- Changes to Wiki pages should audit-able, but importantly the members
should be able to vote positively ('like') or negatively ('dislike /
disagree') with posted changes. The importance of this is that as an author
gains status the need to preview their changes becomes less. In an
organisation based on co-operative mutual assistance the ability to
automate in a democratic fashion is the only way this can scale.
- I think it is a flaw of current social media sites that you can only
dislike.
- We have a Sponsor / Sponsored support model (members can cooperatively
engage in support contracts facilitated by the co-op) but being able to
apply core.logic and member (user) aware knowledge to support issues would
be a huge bonus and I can't see current wikis offering easy integration of
such capability.
- i.e. a logged in member can see a wiki page reflective of their
services and the service status - an interesting problem to provide
authoring for such capabilities.
I'll stop there as it is getting beyond the bailiwick of this list.
Regards,
Marc
On Friday, 7 September 2012 03:17:25 UTC+10, Rich Morin wrote:
I have a partly-baked idea about basing a wiki on Datomic.
This could allow users to view the entire wiki as of some
time in the past, compare versions of pages, etc.
If you find this interesting, please offer any comments or
suggestions you might have.
-r
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