Re: IllegalStateException I/O in transaction in REPL
Thank you for the answers, and sorry for late reply. It seems I figured out what the problem was. My code was placed at the top level of a file sci-clustering/examples.clj, and I was loading the namespace from REPL like this:(use 'sci-clustering.examples :reload-all). So it looks like clojure.core/use loads the libraries / namespaces inside a transaction, which makes sense. Here is the code: http://pastie.org/4130967 , and here is the stack trace: http://pastie.org/4130930 . Best regards, Daniil. On Friday, June 15, 2012 1:20:01 AM UTC+2, Stephen Compall wrote: On Thu, 2012-06-14 at 13:33 -0700, dmirylenka wrote: Could you please explain a bit more? I don't have any dosync in my code. Look through your backtrace for a call to clojure.lang.LockingTransaction.runInTransaction. Its caller is using dosync. -- Stephen Compall ^aCollection allSatisfy: [:each|aCondition]: less is better -- 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] clojure.java.jdbc 0.2.3 available on Maven Central
given java.jdbc's position as the sort of lower level glue all these libraries are built on, maybe better then including a DSL in java.jdbc would be including an AST (some data representation of sql) and a compiler for same. Yeah, that's exactly what I wanted to suggest too. Seems like all would benefit from that. Though, the same idea has already been discussed on the list some time ago. @Sean Corfield: jsql has completely different goals to ClojureQL/Korma and is mostly a convenience for generating the sort of SQL that the update!, insert! and delete! methods need under the hood (c.j.jdbc has to generate that SQL anyway - might as well make the methods public). The select/where/order-by has evolved out of our common usage at World Singles where we have get-by-id and find-by-keys and similar CRUD functions. jsql is deliberately very close to the metal of SQL and is not intended to be composable etc. Folks wanting a full-blown DSL should indeed use Korma (or ClojureQL). Ok, I see. I've misunderstood the goals. Though, it still duplicates significant part of clojureql\korma, right? What do you think about AST\compiler thing? -- 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
defpartial returns object instead of html string
Hi, I am using Chris Ganger's crate library to generate html on the client side. (defpartial html [] form) (def form [:div.form-horizontal [:fieldset [:legend Student Registeration] [:div.control-group [:label.control-label Hello World]]]) When I execute the above function in clojurescript repl as - (html) - I get - #[object HTMLDivElement]. However when I execute it as (.log js/console (html)), the proper generated html is logged into the browser's console. How do I get it to return a HTML string instead of an object? 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: defpartial returns object instead of html string
str On Fri, Jun 22, 2012 at 11:58 AM, Murtaza Husain murtaza.hus...@sevenolives.com wrote: Hi, I am using Chris Ganger's crate library to generate html on the client side. (defpartial html [] form) (def form [:div.form-horizontal [:fieldset [:legend Student Registeration] [:div.control-group [:label.control-label Hello World]]]) When I execute the above function in clojurescript repl as - (html) - I get - #[object HTMLDivElement]. However when I execute it as (.log js/console (html)), the proper generated html is logged into the browser's console. How do I get it to return a HTML string instead of an object? 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 -- 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: defpartial returns object instead of html string
Nope doesnt work. On Friday, June 22, 2012 4:05:13 PM UTC+5:30, bsmith.occs wrote: str On Fri, Jun 22, 2012 at 11:58 AM, Murtaza Husain murtaza.hus...@sevenolives.com wrote: Hi, I am using Chris Ganger's crate library to generate html on the client side. (defpartial html [] form) (def form [:div.form-horizontal [:fieldset [:legend Student Registeration] [:div.control-group [:label.control-label Hello World]]]) When I execute the above function in clojurescript repl as - (html) - I get - #[object HTMLDivElement]. However when I execute it as (.log js/console (html)), the proper generated html is logged into the browser's console. How do I get it to return a HTML string instead of an object? 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 -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to go about finding a Clojure job
Dear Erol; In our country (Turkey) there is no opertunity to find a functional programing job. I guess your nation is Turk because of your name and surname. Anyway there are same cool lisp jobs on http://lispjobs.wordpress.com/ Okan Akyuz 2012/6/21 Erol Akarsu eaka...@gmail.com Colin, I love Clojure language and have done small personal projects. Actually, I like all types of functional languages, had a lot of experience on xquery and related technologies, schema and lisp. May I learn what you are doing? Erol Akarsu On Monday, June 18, 2012 9:27:53 AM UTC-4, Colin Steele wrote: Or send me yours. We're a full-on clojure shop in Charlottesville, VA. On Saturday, June 16, 2012 10:49:00 AM UTC-4, tbc++ wrote: I'm about to begin the process of looking for a new job, and would like to find one that focuses on Clojure. Can anyone suggest some good ways to go about this? It seems like posting my resume on this mailing list would be a bit off-topic. As far as location goes, I'm looking in the Denver, CO area, but am also open to 100% telecommute. Thanks, Timothy Baldridge -- 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 -- Okan Akyüz -- 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 tutorial for how to setup your clojure development environment for: Emacs, Leiningen and Linux.
On Thursday, June 21, 2012 12:58:19 PM UTC+10, John Gabriele wrote:
On Jun 18, 10:23 pm, Chris Zheng zcaud...@gmail.com wrote:
{snip}
So basically, if a 'lead clojure evangelist' can either 'officially' or
'unofficially' recommend ONE emacs setup, along with a bunch of
videos/tutorials that demonstrate how to code and how fast it is to
design
and code using the repl. Then that be enough to get people at least
interested.
People are very opinionated about their editor/IDE. I think the Getting
+Started docs are good --- they separate:
* if you want just Emacs plus the repl, here you go (clojure-mode
readme)
* if you want Emacs + inferior-lisp, do this (this doc needs work)
* if you want Emacs + swank/slime, do this (swank-clojure readme)
and of course also info on Eclipse, Clooj, and other editors/ide's as
well.
I'm right at the start of this process, completely unfamiliar with Clojure,
Leiningen, Emacs, Java and all of the projects with cute names.
I don't even know what I want.
I've cut and pasted various git-clone and lein commands, but have no idea
about the bigger picture. I'm happy to dawdle along on my own, but if my
current (and hopefully temporary) ignorance can provide feedback on a
start-up guide then let me know.
At present I'm often wondering what is this thing? why do I want it?.
Slime for example. I don't especially want answers here, but something like
a glossary for the clojure ecosystem would be handy (not that I've looked
hard).
Another document that might useful is a platform Rosetta stone
matching clojure tools and libraries to those that fill a similar role in
other
languages (Java and Ruby for starters). This is more of a nice to have.
Thanks,
Brad
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How to read a file into a string up until a line? Any way to make it lazy?
I have a 2.5GB file, and will have other files, where the records are mutli-line (variable length) and are separated by // on a line by itself. What is the best way to read the record into a sequence of strings for parsing, and act on that record, and read the next record? It'd be great if it was lazy, as it's 2.5GB and there will be other / larger files in the future. I have it reading the file just fine if there is only one entry, it was nice and easy as well as fast and concise, so I'd love to be able to do the entire thing in clojure if possible. Thanks, --Joseph -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to go about finding a Clojure job
Hello All, I am interested in a job with Clojure language. I am located in Richmond VA and would like to work remotely. Thanks Erol Akarsu On Wednesday, June 20, 2012 8:18:10 PM UTC-4, Erol Akarsu wrote: Colin, I love Clojure language and have done small personal projects. Actually, I like all types of functional languages, had a lot of experience on xquery and related technologies, schema and lisp. May I learn what you are doing? Erol Akarsu On Monday, June 18, 2012 9:27:53 AM UTC-4, Colin Steele wrote: Or send me yours. We're a full-on clojure shop in Charlottesville, VA. On Saturday, June 16, 2012 10:49:00 AM UTC-4, tbc++ wrote: I'm about to begin the process of looking for a new job, and would like to find one that focuses on Clojure. Can anyone suggest some good ways to go about this? It seems like posting my resume on this mailing list would be a bit off-topic. As far as location goes, I'm looking in the Denver, CO area, but am also open to 100% telecommute. Thanks, Timothy Baldridge -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to read a file into a string up until a line? Any way to make it lazy?
Hi, untested but: (require '[clojure.string :as str]) (with-open [reader (clojure.java.io/reader path/to/the/file)] (let [lines (line-seq reader) records (map #(str/split % #\/\/) lines)] ... do your processing here on the lazy record list )) L 2012/6/21 Joseph Guhlin joseph.guh...@gmail.com I have a 2.5GB file, and will have other files, where the records are mutli-line (variable length) and are separated by // on a line by itself. What is the best way to read the record into a sequence of strings for parsing, and act on that record, and read the next record? It'd be great if it was lazy, as it's 2.5GB and there will be other / larger files in the future. I have it reading the file just fine if there is only one entry, it was nice and easy as well as fast and concise, so I'd love to be able to do the entire thing in clojure if possible. Thanks, --Joseph -- 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 -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to read a file into a string up until a line? Any way to make it lazy?
(defn read-records
Read the data from the given reader as a list of strings, where
each string is made up of multiple lines, separated by // on it's own
line.
[reader]
(- (line-seq reader)
(partition-by #{[//]})
(filter (comp not #{[//]}))
(map (partial apply str
-Walter
On Thursday, June 21, 2012 3:25:21 PM UTC-4, Joseph Guhlin wrote:
I have a 2.5GB file, and will have other files, where the records are
mutli-line (variable length) and are separated by // on a line by itself.
What is the best way to read the record into a sequence of strings for
parsing, and act on that record, and read the next record? It'd be great if
it was lazy, as it's 2.5GB and there will be other / larger files in the
future.
I have it reading the file just fine if there is only one entry, it was
nice and easy as well as fast and concise, so I'd love to be able to do the
entire thing in clojure if possible.
Thanks,
--Joseph
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Re: How to read a file into a string up until a line? Any way to make it lazy?
On Friday, June 22, 2012 8:28:02 AM UTC-4, Walter Tetzner wrote:
(defn read-records
Read the data from the given reader as a list of strings, where
each string is made up of multiple lines, separated by // on it's own
line.
[reader]
(- (line-seq reader)
(partition-by #{[//]})
(filter (comp not #{[//]}))
(map (partial apply str
Actually, you want the new lines:
(defn read-records
Read the data from the given reader as a list of strings, where
each string is made up of multiple lines, separated by // on it's own
line.
[reader]
(- (line-seq reader)
(partition-by #{[//]})
(filter (comp not #{[//]}))
(map (partial clojure.string/join \n
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Re: defpartial returns object instead of html string
you can't I believe that the code is designed to specifically bypass strings. Why do you want a string in the client? On Friday, 22 June 2012 20:38:09 UTC+10, Murtaza Husain wrote: Nope doesnt work. On Friday, June 22, 2012 4:05:13 PM UTC+5:30, bsmith.occs wrote: str On Fri, Jun 22, 2012 at 11:58 AM, Murtaza Husain murtaza.hus...@sevenolives.com wrote: Hi, I am using Chris Ganger's crate library to generate html on the client side. (defpartial html [] form) (def form [:div.form-horizontal [:fieldset [:legend Student Registeration] [:div.control-group [:label.control-label Hello World]]]) When I execute the above function in clojurescript repl as - (html) - I get - #[object HTMLDivElement]. However when I execute it as (.log js/console (html)), the proper generated html is logged into the browser's console. How do I get it to return a HTML string instead of an object? 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 -- 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: defpartial returns object instead of html string
actually - not quite true You could always extract the html from the generated element using std browser functions, jquery or similar. On Friday, 22 June 2012 23:16:56 UTC+10, Dave Sann wrote: you can't I believe that the code is designed to specifically bypass strings. Why do you want a string in the client? On Friday, 22 June 2012 20:38:09 UTC+10, Murtaza Husain wrote: Nope doesnt work. On Friday, June 22, 2012 4:05:13 PM UTC+5:30, bsmith.occs wrote: str On Fri, Jun 22, 2012 at 11:58 AM, Murtaza Husain murtaza.hus...@sevenolives.com wrote: Hi, I am using Chris Ganger's crate library to generate html on the client side. (defpartial html [] form) (def form [:div.form-horizontal [:fieldset [:legend Student Registeration] [:div.control-group [:label.control-label Hello World]]]) When I execute the above function in clojurescript repl as - (html) - I get - #[object HTMLDivElement]. However when I execute it as (.log js/console (html)), the proper generated html is logged into the browser's console. How do I get it to return a HTML string instead of an object? 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 -- 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: defpartial returns object instead of html string
Got some help on it from stackoverflow. It is actually a DOM object that is returned, and the html can be extracted using outerHTML property. Thanks, Murtaza On Friday, June 22, 2012 6:49:08 PM UTC+5:30, Dave Sann wrote: actually - not quite true You could always extract the html from the generated element using std browser functions, jquery or similar. On Friday, 22 June 2012 23:16:56 UTC+10, Dave Sann wrote: you can't I believe that the code is designed to specifically bypass strings. Why do you want a string in the client? On Friday, 22 June 2012 20:38:09 UTC+10, Murtaza Husain wrote: Nope doesnt work. On Friday, June 22, 2012 4:05:13 PM UTC+5:30, bsmith.occs wrote: str On Fri, Jun 22, 2012 at 11:58 AM, Murtaza Husain murtaza.hus...@sevenolives.com wrote: Hi, I am using Chris Ganger's crate library to generate html on the client side. (defpartial html [] form) (def form [:div.form-horizontal [:fieldset [:legend Student Registeration] [:div.control-group [:label.control-label Hello World]]]) When I execute the above function in clojurescript repl as - (html) - I get - #[object HTMLDivElement]. However when I execute it as (.log js/console (html)), the proper generated html is logged into the browser's console. How do I get it to return a HTML string instead of an object? 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 -- 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] clojure.java.jdbc 0.2.3 available on Maven Central
On Fri, Jun 22, 2012 at 1:50 AM, Vinzent ru.vinz...@gmail.com wrote: Ok, I see. I've misunderstood the goals. Though, it still duplicates significant part of clojureql\korma, right? Hmm, I wouldn't say a significant part. I think jsql covers a very small space. To satisfy the basic goal for the new c.j.jdbc API, it only really needs the insert/update/delete functions and folks could use SQL for all other queries - but basic select/where is useful enough that I think it's worth adding (to be able to use a map for a simple query). What do you think about AST\compiler thing? I'd love to see some examples of what Kevin / you have in mind here. Feel free to edit http://dev.clojure.org/display/design/java.jdbc to add some examples / thinking around AST. -- 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: A tutorial for how to setup your clojure development environment for: Emacs, Leiningen and Linux.
Hi Brad, I've updated my doc with your questions. Here is how I responded
to your particular queries. Note the answer may not be correct as I'm a
clojure newbie myself.
-
Leiningen is a build tool like maven for java, or rake (i think) for
ruby. You can use it to publish your jar into maven repositories for
example.
Slime is a protocol that lets you communicate from emacs to a
listening server. In clojure, we start a swank server, which is the
clojure REPL process, and connect to it from emacs, speaking 'slime'.
The net effect is that we can have a REPL inside our emacs editor.
-
On Thursday, June 21, 2012 5:58:23 PM UTC-7, brad bowman wrote:
On Thursday, June 21, 2012 12:58:19 PM UTC+10, John Gabriele wrote:
On Jun 18, 10:23 pm, Chris Zheng zcaud...@gmail.com wrote:
{snip}
So basically, if a 'lead clojure evangelist' can either 'officially' or
'unofficially' recommend ONE emacs setup, along with a bunch of
videos/tutorials that demonstrate how to code and how fast it is to
design
and code using the repl. Then that be enough to get people at least
interested.
People are very opinionated about their editor/IDE. I think the Getting
+Started docs are good --- they separate:
* if you want just Emacs plus the repl, here you go (clojure-mode
readme)
* if you want Emacs + inferior-lisp, do this (this doc needs work)
* if you want Emacs + swank/slime, do this (swank-clojure readme)
and of course also info on Eclipse, Clooj, and other editors/ide's as
well.
I'm right at the start of this process, completely unfamiliar with Clojure,
Leiningen, Emacs, Java and all of the projects with cute names.
I don't even know what I want.
I've cut and pasted various git-clone and lein commands, but have no idea
about the bigger picture. I'm happy to dawdle along on my own, but if my
current (and hopefully temporary) ignorance can provide feedback on a
start-up guide then let me know.
At present I'm often wondering what is this thing? why do I want it?.
Slime for example. I don't especially want answers here, but something
like
a glossary for the clojure ecosystem would be handy (not that I've looked
hard).
Another document that might useful is a platform Rosetta stone
matching clojure tools and libraries to those that fill a similar role in
other
languages (Java and Ruby for starters). This is more of a nice to have.
Thanks,
Brad
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Re: {ANN} Clojure-Control 0.4.0 is out!
Hi, This is interesting, but the github page you gave is missing an essential information: What does it bring compared to already existing mature Clojure solutions like Pallet ? Cheers, Denis On Thu, Jun 21, 2012 at 2:34 PM, dennis zhuang killme2...@gmail.com wrote: Clojure-control: a clojure DSL for system admin and deployment with many remote machines via ssh,just like fabric in python and node-control in node.js. Usage: https://github.com/killme2008/clojure-control *Release 0.4.0* - There is a independent shell script for clojure-control right now,and it is not a leiningen plugin since 0.4.0,install clojure-control is easy: - Download the script.https://raw.github.com/killme2008/clojure-control/master/bin/control (https://raw.github.com/killme2008/clojure-control/master/bin/control) - Place it on your $PATH. (I like to use ~/bin) - Set it to be executable. (chmod 755 ~/bin/control) - Upgade clojure-control is easy: control upgrade,just like leiningen. - Added a new global option :error-mode to set the behavior when error happens. Default value is :exit,it will exit the process when error happens,another choice is :exception to throw a runtime exception.Change this value by: (set-options! :error-mode :exception) -- 庄晓丹 Email:killme2...@gmail.com xzhu...@avos.com Site: http://fnil.net Twitter: @killme2008 -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to read a file into a string up until a line? Any way to make it lazy?
Awesome, thank you so much.
Is there any way to make it lazy to avoid the dreaded outOfMemoryError ? Or
is it already lazy and I'm not seeing it / working with it properly?
Best,
--Joseph
On Friday, June 22, 2012 7:30:28 AM UTC-5, Walter Tetzner wrote:
On Friday, June 22, 2012 8:28:02 AM UTC-4, Walter Tetzner wrote:
(defn read-records
Read the data from the given reader as a list of strings, where
each string is made up of multiple lines, separated by // on it's own
line.
[reader]
(- (line-seq reader)
(partition-by #{[//]})
(filter (comp not #{[//]}))
(map (partial apply str
Actually, you want the new lines:
(defn read-records
Read the data from the given reader as a list of strings, where
each string is made up of multiple lines, separated by // on it's own
line.
[reader]
(- (line-seq reader)
(partition-by #{[//]})
(filter (comp not #{[//]}))
(map (partial clojure.string/join \n
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Re: [ANN] clojure.java.jdbc 0.2.3 available on Maven Central
I also can't help but think this is overlapping with ClojureQL/Korma. Korma also isn't that far from the 'metal' this library is shooting for. The biggest problem with SQL is that it isn't functionally composeable. Otherwise why use a DSL instead of SQL itself ? It seems a pretty well-designed DSL for working with relational databases :) Judging from the design of the clojure.java.jdbc query support one would need solid SQL knowledge to begin with. On the one hand, another library of very limited scope wouldn't hurt. But on the other hand, both Korma and ClojureQL could use a bit of a boost. Korma could really use a function like SQL Alchemy's autoload to work with existing databases. That should be doable with better JDBC metadata based functions, which I think would be an appropriate match for clojure.java.jdbc. Such a library could be used in a Korma spin-off library to auto-generate Korma 'entities'. 'Insta-korma' anyone ? ClojureQL had the nice idea to elevate itself above SQL. That makes it seem a bit more 'alien' than Korma or your initiative. The queries generated don't seem very efficient compared to the scope (advanced database use) one would use it to generate queries for. Also, development on it seems to be dwindling. I was thinking if an SQL generation DSL / library could be based on core.logic ? Defining 'facts' a bit like Korma's entities (which could also be derived from JDBC metadata), a set of SQL dialect 'facts', and a set of base SQL facts and goals, with the programmer adding goals through a DSL to generate the desired SQL queries ? I found something like that has been done in Prologhttps://clip.dia.fi.upm.es/%7Eclip/Projects/ASAP/Software/Ciao/CiaoDE/ciao_html/ciao_153.html, but as far as I found that's the only one. Clojure could really use a great 'conventional' relational database stack like Python has in SQL Alchemy. A lot of the bases have been covered by Java and clojure.java.jdbc. Our web stack is built on small libraries building on eachother's strengths, could we do the same here ? On Friday, June 22, 2012 9:09:22 PM UTC+2, Sean Corfield wrote: On Fri, Jun 22, 2012 at 1:50 AM, Vinzent ru.vinz...@gmail.com wrote: Ok, I see. I've misunderstood the goals. Though, it still duplicates significant part of clojureql\korma, right? Hmm, I wouldn't say a significant part. I think jsql covers a very small space. To satisfy the basic goal for the new c.j.jdbc API, it only really needs the insert/update/delete functions and folks could use SQL for all other queries - but basic select/where is useful enough that I think it's worth adding (to be able to use a map for a simple query). What do you think about AST\compiler thing? I'd love to see some examples of what Kevin / you have in mind here. Feel free to edit http://dev.clojure.org/display/design/java.jdbc to add some examples / thinking around AST. -- 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: How to read a file into a string up until a line? Any way to make it lazy?
Is there any way to make it lazy to avoid the dreaded outOfMemoryError ?
Or is it already lazy and I'm not seeing it / working with it properly?
It's already lazy. If you are experiencing an outOfMemoryError, make sure
you're not holding on to the head of the list.
line-seq, partition-by, filter, and map all return lazy sequences.
-Walter
On Friday, June 22, 2012 6:33:58 PM UTC-4, Joseph Guhlin wrote:
Awesome, thank you so much.
Is there any way to make it lazy to avoid the dreaded outOfMemoryError ?
Or is it already lazy and I'm not seeing it / working with it properly?
Best,
--Joseph
On Friday, June 22, 2012 7:30:28 AM UTC-5, Walter Tetzner wrote:
On Friday, June 22, 2012 8:28:02 AM UTC-4, Walter Tetzner wrote:
(defn read-records
Read the data from the given reader as a list of strings, where
each string is made up of multiple lines, separated by // on it's own
line.
[reader]
(- (line-seq reader)
(partition-by #{[//]})
(filter (comp not #{[//]}))
(map (partial apply str
Actually, you want the new lines:
(defn read-records
Read the data from the given reader as a list of strings, where
each string is made up of multiple lines, separated by // on it's own
line.
[reader]
(- (line-seq reader)
(partition-by #{[//]})
(filter (comp not #{[//]}))
(map (partial clojure.string/join \n
--
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error in clojurescript compilation
Hi, I was hacking away happily with my clojurescript, when suddenly this error seems to crop up - java.lang.IllegalArgumentException: Parameter declaration clojure.core/let should be a vector core.clj:6567 clojure.core/assert-valid-fdecl core.clj:220 clojure.core/sigs I have tried commenting all bits of code, restarted the server etc . I am using cljsbuild 0.2.1 for comiplation. 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: A tutorial for how to setup your clojure development environment for: Emacs, Leiningen and Linux.
p.s. I think idea + la enclosure works quite wellwhy beginners are
always introduced to emacs solution?
On Sat, Jun 23, 2012 at 4:45 AM, fenton fenton.trav...@gmail.com wrote:
Hi Brad, I've updated my doc with your questions. Here is how I responded
to your particular queries. Note the answer may not be correct as I'm a
clojure newbie myself.
-
Leiningen is a build tool like maven for java, or rake (i think) for
ruby. You can use it to publish your jar into maven repositories for
example.
Slime is a protocol that lets you communicate from emacs to a
listening server. In clojure, we start a swank server, which is the
clojure REPL process, and connect to it from emacs, speaking 'slime'.
The net effect is that we can have a REPL inside our emacs editor.
-
On Thursday, June 21, 2012 5:58:23 PM UTC-7, brad bowman wrote:
On Thursday, June 21, 2012 12:58:19 PM UTC+10, John Gabriele wrote:
On Jun 18, 10:23 pm, Chris Zheng zcaud...@gmail.com wrote:
{snip}
So basically, if a 'lead clojure evangelist' can either 'officially'
or
'unofficially' recommend ONE emacs setup, along with a bunch of
videos/tutorials that demonstrate how to code and how fast it is to
design
and code using the repl. Then that be enough to get people at least
interested.
People are very opinionated about their editor/IDE. I think the Getting
+Started docs are good --- they separate:
* if you want just Emacs plus the repl, here you go (clojure-mode
readme)
* if you want Emacs + inferior-lisp, do this (this doc needs work)
* if you want Emacs + swank/slime, do this (swank-clojure readme)
and of course also info on Eclipse, Clooj, and other editors/ide's as
well.
I'm right at the start of this process, completely unfamiliar with
Clojure,
Leiningen, Emacs, Java and all of the projects with cute names.
I don't even know what I want.
I've cut and pasted various git-clone and lein commands, but have no idea
about the bigger picture. I'm happy to dawdle along on my own, but if my
current (and hopefully temporary) ignorance can provide feedback on a
start-up guide then let me know.
At present I'm often wondering what is this thing? why do I want it?.
Slime for example. I don't especially want answers here, but something
like
a glossary for the clojure ecosystem would be handy (not that I've looked
hard).
Another document that might useful is a platform Rosetta stone
matching clojure tools and libraries to those that fill a similar role in
other
languages (Java and Ruby for starters). This is more of a nice to have.
Thanks,
Brad
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