Re: [ANN] Deeto - A Java dynamic proxy factory for interface-typed data transfer objects
Sounds like everything I escaped from when I discovered Clojure. gvim On 03/07/2019 22:38, henrik42 wrote: Hi everyone, I'm pleased to announce the release of Deeto 0.1.0 [1] Deeto is a Clojure library for Java developers. With Deeto you can define your data transfer object types via interfaces in Java. You do not need to implement these interfaces. Instead you can ask Deeto to analyze (via reflection) the interface class and then give you a factory for it. Deeto returns Java dynamic proxys which implements `Cloneable` and `Serializable`. The proxy has sane `equals`, `hashCode` and `clone` implemetations. It's available now on Clojars. Henrik [1] https://github.com/henrik42/deeto/tree/0.1.0 -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com <mailto:clojure+unsubscr...@googlegroups.com>. To view this discussion on the web visit https://groups.google.com/d/msgid/clojure/51f21a20-ae63-449d-a126-5d5545ab876a%40googlegroups.com <https://groups.google.com/d/msgid/clojure/51f21a20-ae63-449d-a126-5d5545ab876a%40googlegroups.com?utm_medium=email_source=footer>. For more options, visit https://groups.google.com/d/optout. -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/clojure/5D1D43E5.2090903%40gmail.com. For more options, visit https://groups.google.com/d/optout.
Re: Kotlin null-safety in Clojure?
On 30/12/2016 19:19, James Reeves wrote: Well, Kotlin is statically typed, and Clojure is dynamically typed. Null checking on dynamically typed languages is hard (impossible?) to achieve without impacting performance. - James Personally, I'd trade the whole of clojure.spec & core.typed for this feature of Kotlin. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Kotlin null-safety in Clojure?
On 30/12/2016 19:19, James Reeves wrote: Well, Kotlin is statically typed, and Clojure is dynamically typed. Null checking on dynamically typed languages is hard (impossible?) to achieve without impacting performance. - James Could spec + macros bring Clojure somewhere near? Just a naive shot in the dark :) gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Kotlin null-safety in Clojure?
What would it take to implement Kotlin's null-safety in Clojure? Are there any Clojure-specific gotchas which make it more difficult than in Kotlin? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] [book] Mastering Clojure published!
On 03/04/2016 05:46, Akhil Wali wrote: I'm pleased to announce that Mastering Clojure has been published. This book is a fast paced exploration of the more advanced features of the Clojure language. It also demonstrates a handful of interesting libraries, such as core.async, pulsar, core.logic and cats. https://www.packtpub.com/application-development/mastering-clojure https://github.com/PacktPublishing/Mastering-Clojure http://www.amazon.com/Mastering-Clojure-Akhil-Wali/dp/1785889745/ It's been almost a year since I've started working on this book. A big thanks to everyone involved! Congratulations, Akhil. To anyone intending to publish, please think twice before going with Packt as their pricing is ridiculous. Compare "Mastering Clojure" with "Web Development with Clojure" (Pragmatic Bookshelf): "Mastering Clojure" - 266 pages / 42.82 Euros = $48.81 "Web Development with Clojure" - 250 pages / $24 = 21.05 Euros O'Reilly and Prag Prog books are also better produced, IMHO, with less of the sidebar padding you find in Packt books. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure as first language
On 21/02/2016 10:45, Terje Dahl wrote: I believe that the simplicity of Clojure's syntax in combination with its clean functional nature and prefix notation makes it ideal as a "first language" for anyone who wants to start programming - including, and perhaps especially kids. Is there anything written about this? Arguments ... experiences ... perhaps even research ...? For kids and student maybe but for anyone setting out to earn a living from programming Clojure would be a bad choice right now as the job market is overwhelmingly OOP-dominated and once you grok Clojure OOP can become intolerable. Better to get a foundation in Javascript, Python/Ruby and Java first then add Clojure later. According to Indeed.co.uk there are only 21 jobs in the UK with Clojure in the title. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Luminus in Techempower benchmarks
In the latest round of Techempower benchmarks: https://www.techempower.com/benchmarks/#section=data-r12=peak=json ... I was surprised to find Luminus performing no better than Hapi (Node) and significantly worse than Java frameworks. Figures are requests/second: FORTUNES - Hapi: 1.9 - Luminus: 0.9 - Gemini: 55.5 JSON SERIALISATION - Hapi: 0.3 (Raw db) - Luminus: 0.8 - Rapidoid: 78.4 SINGLE QUERY - Hapi: 2.9 - Luminus: 8.7 - Gemini: 75.8 MULTI-QUERY - Hapi: 33.0 - Luminus: 20.4 - Dropwizard: 65.8 DATA UPDATES - Hapi:20.9 - Luminus: 20.0 - Ninja: 54.7 PLAINTEXT - Hapi:0.7 - Luminus: 0.0 - Rapidoid: 100.0 Any ideas? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Scala/Clojure/F# - Functional Programming Advocates - New York/Chicago/San Fran
Alex I was looking at Indeed.com for U.S. FP job stats and I found for "United States" by title: Java: 12,125 Scala: 336 Clojure: 28 Considering Clojure 1.0 has been around for nearly 7 years and Scala 2.0 is almost a decade old is it fair to conclude that FP and Clojure in particular are likely to remain niche as far as paid work goes? It seems the OO juggernaut just rolls on regardless :( gvim On 01/02/2016 20:54, a...@functionalworks.com wrote: Hey All, I am currently working with some of the worlds most talented FP teams in the US to help them build out there Clojure, F# and Scala teams. If you are looking for a new gig within the Functional Space and want to work alongside some of the best engineers then drop me a line! a...@functionalworks.com <mailto:a...@functionalworks.com> Paying up to $180,000 + Benefits + Bonus + Stock! Look forward to hearing from you. thanks, Alex Mesropians -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Compare between clojure and Java
On 05/01/2016 13:44, Josh Kamau wrote:
Here is an extremely simple example:
Problem: add a list of numbers
java: You put something like this in a class in a method
int[] numbers = {1,2,3,4,5,6,7,7,8,4,3} ;
int sum = 0 ;
for(int i = 0; i < sum.length; i++) {
sum = sum + i;
}
return sum;
clojure: You put this in a clojure namespace
(def numbers [1 2 3 4 54 56 6])
;;to get the sum
(reduce + numbers)
You get the idea ;)
Josh
Even more painful is:
public class Klass {
public HashMap<String, String> data = new HashMap<String, String>();
data.put("key1", "value1");
data.put("key2", "value2");
data.put("key3", "value3");
data.put("key4", "value4");
}
versus:
(def my-map {:key1 "value1" :key2 "value2" :key3 "value3" :key4 "value4"})
The complexity is compounded in Java if you want mixed-type values or
arbitrary nesting. In Clojure it is pure simplicity:
(def my-map {:key1 "value1" :key2 55 :key3 [:m1 {:k1 "val1" :k2 67} :m2
{:k1 "val1" :k2 [1 2 3 4]}] :key4 #{2 4 "name" :id}})
(get-in my-map [:key3 3 :k2 3]) ; => 4
gvim
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Re: Compare between clojure and Java
On 05/01/2016 13:44, Josh Kamau wrote:
Here is an extremely simple example:
Problem: add a list of numbers
java: You put something like this in a class in a method
int[] numbers = {1,2,3,4,5,6,7,7,8,4,3} ;
int sum = 0 ;
for(int i = 0; i < sum.length; i++) {
sum = sum + i;
}
return sum;
clojure: You put this in a clojure namespace
(def numbers [1 2 3 4 54 56 6])
;;to get the sum
(reduce + numbers)
You get the idea ;)
Josh
Or simply:
(reduce + [1 2 3 4 54 56 6])
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Re: Reviewers needed for new Clojure book!
Akhil Have you considered approaching O'Reilly or Pragmatic? Packt books tend to be on the slim side which might affect your potential for covering so many topics in any kind of depth. IMHO they're also overpriced. gvim On 24/08/2015 07:46, Akhil Wali wrote: If anyone is interested in being a reviewer for a new book *Mastering Clojure* by Packt Publishing, please let me know. Reviewers will be entitled to a 6 montn subscription of PacktLib https://www.packtpub.com/books/subscription/packtlib. Here's the list of topics covered in this title. * * Working with Sequences and Types * Orchestrating Concurrency and Parallelism * Parallelization using Reducers * Writing Macros * Composing Transducers * Using Functors and Monads * Programming with Logic * Asynchronous Programming * Reactive Programming * Working with Tests * Troubleshooting and Best Practices -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com mailto:clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] New Clojure Book: Clojure Data Structures and Algorithms Cookbook
On 20/08/2015 12:21, Rafik NACCACHE wrote: Hi Guys, I am proud to let you know that my book dealing about advanced algorithms in Clojure has hit the shelves. Please head over to: https://www.packtpub.com/application-development/clojure-data-structures-and-algorithms-cookbook Rafik Congrats, Rafik. The book looks great. I just wish you'd gone with a publisher with more realistic pricing. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Power of Clojure/Lisp s-expressions as a debugging aid
As a relative Clojure novice I'm finding Lisp's s-expressions provide a
simplified debugging experience, Java stacktraces aside, unparallelled
in any other language I've come across. I was recently having trouble
with this function:
(defn shared-aspects [my-id your-id]
(for [[{left :l right :r id1 :id asp1 :aspect} {asp2 :aspect}]
(partition 2 (sql-aspects-by-id {:mi my-id :yi your-id}))
:let [asp1 (keyword asp1)
asp2 (keyword asp2)
rg (if (= id1 my-id) (str (asp-colour asp1)
(asp-colour asp2))
(str (asp-colour asp2)
(asp-colour asp1)))]]
{:rg rg :asp-id ((first (sql-joint-aspect-id {:le left :ri right
:ty shared})) :id)}))
The magic of s-expressions allowed me to extract what I suspected was
the culprit:
(partition 2 (sql-aspects-by-id {:mi my-id :yi your-id}))
... and test it separately in the REPL. I was able to first test the
function's output, assess it's suitability for the end result I required
then, when found unsatisfactory, substitute various alternatives to
partition and slot the modified version back into the main function
defintion. This option of wrapping and substituting is what makes Lisp
so special within a live REPL.
Other functional languages, such as Scala and Haskell, claim to enjoy a
similar level of composability but I can't imagine anything without
s-expressions offering quite the same experience.
gvim
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Re: ClojureScript Self-hosting Demo
On 31/07/2015 19:08, David Nolen wrote: Some more words demos here http://swannodette.github.io/2015/07/29/clojurescript-17/ Cheers, David Amazing work, David. Clojure[script] really is THE fountain of innovation. Whilst Clojurescript may not be as mainstream as React, Angular etc. developments within it are shaping the whole client-side development scene. Self-hosting Clojurescript, along with demand-driven data modelling, is truly mind-blowing. Well done. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Function behaving differently in web app route
I have a route in my Luminus project:
(POST /add_link [my_id fname surname day2 month2 year2 hour2 min2
zone2]
(let [link (add-user-planets-aspects! [fname
surname nil nil nil
(Integer/parseInt day2) (Integer/parseInt month2) (Integer/parseInt year2)
(Integer/parseInt hour2) (Integer/parseInt min2) 0 zone2])
your-id ((first (link :aspects-added))
:user_id)
link-id ((add-link (Integer/parseInt
my_id) your-id friend) :id)]
(l/render reg_response.html
(if ( link-id 0) {:h2 Link added
:text (str Link id: link-id)}
{:h2 No link
added :text There was something wrong with your link submission.}
In the REPL add-link does what it should but within the route it only
does half the job, ie. it generates a link-id but doesn't do everything
defined within its body:
(defn add-link [my-id your-id link-type]
(let [link-id ((add-link-id my-id your-id link-type) :id)
shared (add-links-aspects my-id your-id link-id)
synastry (add-links-synastry my-id your-id link-id)]
{:shared shared :synastry synastry :id link-id}))
I've tried (doall (add-link to avoid lazy eval possibilities but
it didn't make any difference. What options are there for tracing what
add-link is doing/not doing? The app connects to a postgres database.
gvim
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Re: Help with data structure transformation
On 06/06/2015 05:01, Sean Corfield wrote:
Page 84 is where it shows that maps are a sequence of pairs.
The destructuring in James's code is on vectors -- the pairs in the
sequence.
Hope that helps?
Sean
Page 84 describes the sequence abstraction in general but it's the
implicit seq in for destructuring that threw me as I can't recall an
example of it in any books I've read. I don't know what to make of this,
for example:
(seq {:a aa :b bb :c cc})
([:c cc] [:b bb] [:a aa]) ;; Fine so far
(let [[x y z] (seq {:a aa :b bb :c cc})] [x y z])
[[:c cc] [:b bb] [:a aa]] ;; Consistent with first example above
(for [[x y z] {:a aa :b bb :c cc}] [x y z])
([:c cc nil] [:b bb nil] [:a aa nil]);; WTF?
Taken together these make no sense to me.
gvim
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Help with data structure transformation
I have a YeSQL query:
(get-signs {:em emails}) ;; emails is a vector of email address strings
... which produces this list of maps:
(
{:email a...@gmail.com, :sign Scorpio, :planet Mercury, :surname
Blogs, :first_name Joe}
{:email a...@gmail.com, :sign Leo, :planet Moon, :surname Blogs,
:first_name Joe}
{:email a...@gmail.com, :sign Scorpio, :planet Venus, :surname
Blogs, :first_name Joe}
{:email a...@gmail.com, :sign Cancer, :planet Mars, :surname
Blogs, :first_name Joe}
{:email a...@gmail.com, :sign Libra, :planet Sun, :surname Blogs,
:first_name Joe}
{:email d...@gmail.com, :sign Scorpio, :planet Mars, :surname
Doe, :first_name Jane}
{:email d...@gmail.com, :sign Taurus, :planet Moon, :surname Doe,
:first_name Jane}
{:email d...@gmail.com, :sign Cancer, :planet Mercury, :surname
Doe, :first_name Jane}
{:email d...@gmail.com, :sign Virgo, :planet Venus, :surname Doe,
:first_name Jane}
{:email d...@gmail.com, :sign Leo, :planet Sun, :surname Doe,
:first_name Jane}
)
I want to transform this data structure into a list of maps in this format:
{:email a...@gmail.com :planet-signs {:Sun Libra :Moon Leo :Mercury
Scorpio :Venus Scorpio :Mars Cancer]}
I started with:
(defn extract-planet-signs [emails]
(let [results (group-by :email (get-signs {:em emails}))]
(for [email-key (keys results)
{:keys [email sign planet surname first_name]} (results
email-key)
... but beyond that I'm a bit stuck. Any ideas?
gvim
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Re: Help with data structure transformation
I must re-read Clojure Programming (O'Reilly) in that case as I don't
recall the authors mentioning this kind of destructuring.
gvim
On 06/06/2015 03:33, Fluid Dynamics wrote:
On Friday, June 5, 2015 at 10:07:05 PM UTC-4, g vim wrote:
That works but I missed this possibility because I'm still not clear
how:
(group-by :email signs)
which produces a map of the form:
{a...@gmail.com javascript:
[{:email a...@gmail.com javascript:, :sign Cancer,
:planet Mars, :surname
Blogs, :first_name Joe}
. ]}
can be destructured with the vector [email signs]. I assumed a map
must be destructured with a map but couldn't find a solution as the map
keys are unique values, ie. email addresses.
The code was (for [[email signs] (group-by...)]...). The for iterates
over the map produced by group-by, producing individual map entries, and
map entries can be treated as two-element seqs/vectors of [key value],
which is what the destructuring does here, putting the key in local
binding email and the value, a vector with maps in it, in signs.
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Re: Help with data structure transformation
That works but I missed this possibility because I'm still not clear how:
(group-by :email signs)
which produces a map of the form:
{a...@gmail.com
[{:email a...@gmail.com, :sign Cancer, :planet Mars, :surname
Blogs, :first_name Joe}
. ]}
can be destructured with the vector [email signs]. I assumed a map
must be destructured with a map but couldn't find a solution as the map
keys are unique values, ie. email addresses.
I reduced your solution to:
(defn extract-planet-signs [emails]
(for [[email signs] (group-by :email (get-signs {:em emails}))]
{:email email, :signs (into {} (map (juxt :planet :sign) signs))}))
Thanks
gvim
On 05/06/2015 21:26, James Reeves wrote:
Perhaps something like:
(defn planet-sign-map [signs]
(into {} (map (juxt :planet :sign) signs)))
(defn extract-planet-signs [signs]
(for [[email signs] (group-by :email signs)]
{:email email, :signs (planet-sign-map signs)}))
(defn find-planet-signs [emails]
(extract-planet-signs (get-signs {:em emails})))
- James
On 5 June 2015 at 17:24, gvim gvi...@gmail.com
mailto:gvi...@gmail.com wrote:
I have a YeSQL query:
(get-signs {:em emails}) ;; emails is a vector of email address strings
... which produces this list of maps:
(
{:email a...@gmail.com mailto:a...@gmail.com, :sign Scorpio,
:planet Mercury, :surname Blogs, :first_name Joe}
{:email a...@gmail.com mailto:a...@gmail.com, :sign Leo, :planet
Moon, :surname Blogs, :first_name Joe}
{:email a...@gmail.com mailto:a...@gmail.com, :sign Scorpio,
:planet Venus, :surname Blogs, :first_name Joe}
{:email a...@gmail.com mailto:a...@gmail.com, :sign Cancer,
:planet Mars, :surname Blogs, :first_name Joe}
{:email a...@gmail.com mailto:a...@gmail.com, :sign Libra,
:planet Sun, :surname Blogs, :first_name Joe}
{:email d...@gmail.com mailto:d...@gmail.com, :sign Scorpio,
:planet Mars, :surname Doe, :first_name Jane}
{:email d...@gmail.com mailto:d...@gmail.com, :sign Taurus,
:planet Moon, :surname Doe, :first_name Jane}
{:email d...@gmail.com mailto:d...@gmail.com, :sign Cancer,
:planet Mercury, :surname Doe, :first_name Jane}
{:email d...@gmail.com mailto:d...@gmail.com, :sign Virgo,
:planet Venus, :surname Doe, :first_name Jane}
{:email d...@gmail.com mailto:d...@gmail.com, :sign Leo, :planet
Sun, :surname Doe, :first_name Jane}
)
I want to transform this data structure into a list of maps in this
format:
{:email a...@gmail.com mailto:a...@gmail.com :planet-signs {:Sun
Libra :Moon Leo :Mercury Scorpio :Venus Scorpio :Mars Cancer]}
I started with:
(defn extract-planet-signs [emails]
(let [results (group-by :email (get-signs {:em emails}))]
(for [email-key (keys results)
{:keys [email sign planet surname first_name]} (results
email-key)
... but beyond that I'm a bit stuck. Any ideas?
gvim
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Re: Help with data structure transformation
Yes, I'm fine with the concept. Just can't remember coming across it in
the textbooks but maybe I wasn't paying attention :)
gvim
On 06/06/2015 04:08, Sean Corfield wrote:
It’s because if you treat a hash map as a sequence — as `for` does — you get a
sequence of pairs (key/value — map entries):
(seq {:a 1 :b 2})
;;= ([:a 1] [:b 2])
Does that help?
Sean
On Jun 5, 2015, at 7:41 PM, gvim gvi...@gmail.com wrote:
I must re-read Clojure Programming (O'Reilly) in that case as I don't recall
the authors mentioning this kind of destructuring.
gvim
On 06/06/2015 03:33, Fluid Dynamics wrote:
On Friday, June 5, 2015 at 10:07:05 PM UTC-4, g vim wrote:
That works but I missed this possibility because I'm still not clear
how:
(group-by :email signs)
which produces a map of the form:
{a...@gmail.com javascript:
[{:email a...@gmail.com javascript:, :sign Cancer,
:planet Mars, :surname
Blogs, :first_name Joe}
. ]}
can be destructured with the vector [email signs]. I assumed a map
must be destructured with a map but couldn't find a solution as the map
keys are unique values, ie. email addresses.
The code was (for [[email signs] (group-by...)]...). The for iterates
over the map produced by group-by, producing individual map entries, and
map entries can be treated as two-element seqs/vectors of [key value],
which is what the destructuring does here, putting the key in local
binding email and the value, a vector with maps in it, in signs.
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Re: Help with timestamp with timezone in YeSQL
'Turns out I was looking in the wrong place. YeSQL relieves you of all
the clj-time formatting as you can simply add the PostgreSQL cast
directly to your placeholder so this:
-- name: add-birth!
INSERT INTO births (date_time) VALUES (:date_time)
becomes:
-- name: add-birth!
INSERT INTO births (date_time) VALUES (:date_time::timestamptz)
Now this works:
(add-birth! {:date_time 1967-07-31 06:30:00 America/Caracas})
gvim
On 17/05/2015 01:36, Sam Roberton wrote:
On Sunday, 17 May 2015 01:46:14 UTC+10, g vim wrote:
snip/
(c/to-timestamp 1967-07-31 06:30:00 America/Caracas)
evaluates to nil. However:
(c/to-timestamp 1967-07-31 06:30:00)
gives me an: #inst 1967-07-31T06:30:00.0-00:00 ,
whatever that is, so I checked the clj-time docs and it appears
to-timestamp doesn't handle timezones.
Any ideas?
Looks like you might want this:
user (clj-time.format/parse (clj-time.format/formatter -MM-dd
HH:mm:ss ZZZ) 1967-07-31 06:30:00 America/Caracas)
#object[org.joda.time.DateTime 0x79e05a0 1967-07-31T10:30:00.000Z]
I suspect you'll then need some further work to make sure that the Joda
DateTime object correctly converts into what you actually want stored in
the database when it's set on the SQL PreparedStatement (something like
this
http://tapestryjava.blogspot.ie/2014/09/postgres-jdbc-time-zones.html,
but extending the type to Joda's DateTime rather than java.util.Date) --
or alternatively you might be OK just coercing the above to a
java.sql.Date or java.sql.Timestamp.
gvim
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Help with timestamp with timezone in YeSQL
I have a YeSQL query:
-- name: add-birth!
INSERT INTO births (date_time) VALUES (:date_time)
In PostgreSQL I can enter:
INSERT INTO births (date_time) VALUES ('1967-07-31 06:30:00
America/Caracas')
... and all is well but my defquery equivalent:
(add-birth! {:date_time 1967-07-31 06:30:00 America/Caracas})
fails because the date_time string is passed to PostgreSQL as a
varchar, not a timestamp with timezone. So, to remedy this I tried
clj-time's coerce function:
(add-birth! {:date_time (c/to-timestamp 1967-07-31 06:30:00
America/Caracas)})
which fails again because:
(c/to-timestamp 1967-07-31 06:30:00 America/Caracas)
evaluates to nil. However:
(c/to-timestamp 1967-07-31 06:30:00)
gives me an: #inst 1967-07-31T06:30:00.0-00:00 ,
whatever that is, so I checked the clj-time docs and it appears
to-timestamp doesn't handle timezones.
Any ideas?
gvim
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Re: Clojure needs a web framework with more momentum
On 04/05/2015 14:34, Ernie de Feria wrote: I would like to echo the sentiment expressed by several posters in this thread, but with a slight twist. A few years back I picked up Ruby and Ruby on Rails as the language/framework to create a website with moderate complexity and functionality. I did this without any prior experience with the language of framework. What allowed me to quickly pick up both was the excellent documentation around the language and framework. For example, with the information from http://guides.rubyonrails.org and the canonical application built in https://www.railstutorial.org one can acquire the necessary knowledge to develop highly functional websites. Branching out to leverage non-canonical libraries/products then becomes a fairly easy exercise (MongoDB instead of MySQL, Mongoid instead of ActiveRecords, etc.). What allows that to happen is the momentum built around the Rails ecosystem via community participation and documentation. We have recently started to build our back end infrastructure in Clojure. Many times we have discussed the value and desire to unify our development efforts on and around Clojure. Inevitably we tally up all the functionality inherited from Ruby gems (that play nice with Rails - the Framework) that would have to be replicated in Clojure and there always shortcomings, not necessarily in the availability of libraries that perform these functions, but in the readily accessible documentation about how to best integrate them. The composable libraries over framework mantra is technically solid. What we're missing, in the web development with Clojure subset of the community, is the stewardship to create and maintain a canonical amalgamation of composable libraries and the best practices around them - a la https://railstutorial.org. This would lower the barrier of entry into the web development realm for Clojure developers. My 2+ cents. Clojure needs its own Rails or Typesafe Reactive Platform otherwise I fear it will remain a niche player. What's to lose? The current approach will always remain an option. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 04/05/2015 15:24, Timothy Baldridge wrote: The thing that bugs me the most about these sort of conversations about best practices is that they often present a set of solutions without first analyzing the problem at hand. If I came to this mailing list and asked I want to write a websever in Clojure..what should I use?. The response would most likely be Ring + Compojure. Okay, not bad options, but that recommendation has been given with absolutely no analysis of what I'm trying to accomplish. What if I need async? What if I need web sockets? What sort of connection load am I expecting? Will my system handle mostly persistent connections (like websockets or SSE), or will it be more canned (and cacheable) data? If someone recommends Ring to me, I may be pigeonholed into some system I'll have to refactor later. Perhaps the best option is Aleph or Pedestal. That's the real issue with canned responses like rails tutorial. They assume my needs match your needs and match the needs of most people. That's just not the best way to go about doing software development. And it's a problem I've seen in so many areas of computing. I've lost countless hundreds of hours of my life to frameworks that default to bulky serialization formats (like XML or JSON), or frameworks that assume LAN connections to the servers, or frameworks that assume I won't be using multi-threading, or frameworks that assume I won't try to load 10k rows on a single page, or frameworks that assume any number of things. The thing I love the most about the Clojure community is that, more than any other community I've been a part of, they try to ask you to think before you jump. So what I would recommend is more of a set of guidelines, and matrices. List all the frameworks/libraries on one axis, and features on another, and start commenting. Make a page like this: (http://en.wikipedia.org/wiki/Comparison_of_video_container_formats) Mention that Ring is well supported by the community, but doesn't work well with fully async servers, mention that Aleph does all the async you need, but is a bit non-standard. Mention that data.json is pure Clojure, but cheshire is most likely faster. Just present the options, and let the users make up their own minds. You don't understand the needs of all of your users. So don't try to solve their problems, instead present them with options and let them make up their own minds. I guarantee you that whatever tech you recommend to someone, the won't like some aspect of it, so better to present them with all the options and let them choose, then they can only blame themselves if it doesn't work out exactly like they expected. A seasoned professional/Clojure guru like yourself will obviously prefer a customised approach but the beginner and mid-level developer faces a different problem - how to get something fully-featured up quickly and maybe get paid for doing a job within a limited budget timescale where exploring all the options and how to fit them together just isn't an option. I'm all in favour of library composition but not exclusively. In the Python world they have Django and a tradition of do-it-yourself lightweight options. I don't understand why we can't adopt a similar approach. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 04/05/2015 23:17, blake wrote: I went from Ruby to Clojure in short-order and while I struggled mightily with the functional aspect (after assiduously avoiding those concepts for years), I much prefer every aspect of Clojure web programming to Rails. The bible of rails programming is the Hartl book. In the edition I read, before you got to any actual programming, you were introduced to 14—fourteen! I counted!—different domains, including things like RSpec and Cucumber. And it was all treated with this, Well, you can figure out what this all does because, hey, it looks just like English attitude, with a patina of you don't need to know what's going on under the covers. The advantage of having an opinionated framework is that it saves one the effort of having to make up one's own mind. This means you're trusting someone with literally no understanding of your problem domain to make up your mind for you. It's sort of amazing that this works at all, and that there aren't =more= vulnerabilities turning up like the Rails XML hack. This made me really uncomfortable with Rails. My current Clojure web app is more sophisticated than anything I did with Rails, though my Rails apps doubtless carried far more untapped potential. But I know just about exactly what it does. I know because I added each piece of middleware as I needed it, and this allowed me to understand what going on. I needed access to Mongo and MS-SQL, so I added those. I needed a front-end so I started with Hiccup, which is obvious (and remarkably similar to Smalltalk's Seaside, which I've used), and then added in some Javascript. I'll turn the Javascript into Clojurescript, but I felt that was too much to absorb at once. And unlike Rails, I didn't need to absorb every hot library du jour to get going. (And damned if in Rails, each tutorial has a different idea of which libraries are essential.) Then I added authentication, and threading (which was ridiculously easy), and so on. Each piece as needed, with an understanding of what was going on. Now, I don't get ALL of it. But I know where my weaknesses are. I have, now, an opinionated framework, but it's made of =my= opinions. And I made those opinions by looking at what the libraries I'm using did, which is way simpler in a shallow functional world than in an object-drill-down world. In Rails, you don't know what you don't know. Do the advantages you've pointed out apply to teamwork, though? That's supposed to be where frameworks make life easier. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 04/05/2015 23:49, Raoul Duke wrote: vulnerabilities that would not exist using an integrated framework. fwiw, web + security always makes me think of http://liftweb.net/ Can you elaborate? Lift got it right or was a disaster? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 05/05/2015 00:03, Raoul Duke wrote: Can you elaborate? Lift got it right or was a disaster? oh! good question, sorry :-) i believe it got it far more right than wrong. I've been pretty impressed with Scala's main framework, Play 2. There seems to be a lot of momentum behind their Typesafe Reactive Platform and, like Rails, plenty of resources to get new users up to speed. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 04/05/2015 21:48, Robert Levy wrote: Another thing worth mentioning that I don't see already mentioned is the case for a web framework from a security perspective: https://www.youtube.com/watch?v=CBL59w7fXw4 Having a lot of different pieces without standard ways of putting them together can introduce vulnerabilities that would not exist using an integrated framework. See the first message in the thread. That was one of my concerns. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 03/05/2015 19:01, Hildeberto Mendonça wrote: I would recommend watching the video Simple made easy by Rich Hickey: http://www.infoq.com/presentations/Simple-Made-Easy . By watching this video, I realized there is no sense writing frameworks in Clojure. Not because the video says so, but because the approach of using libraries to compose solutions makes a lot more sense. Django and Rails are examples of easy technologies, while Clojure and its libraries are an example of simple. You will also understand Sean when he said that Clojure doesn't need to be the solution for low-level problems. Do you actually program in Clojure? Have you experienced web development in Clojure? I'm asking that because my personal experience was actually good. I'm happier writing Clojure web apps adding libraries on demand instead of having a huge piece of software with a lot of things that I don't use at all. Rich Hickey's videos got me into Clojure so, yes, I've watched all of them several times. Yes, I do program in Clojure. Exclusively at the moment as I'm currently free to work on my own startup project. I'm using Luminus and enjoy it so I didn't start this thread out of dissatisfaction with Luminus itself but more from a sense of frustration at seeing so little input coming from the community compared with other languages. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 03/05/2015 23:55, James Reeves wrote: On 3 May 2015 at 23:36, gvim gvi...@gmail.com mailto:gvi...@gmail.com wrote: Yes, I do program in Clojure. Exclusively at the moment as I'm currently free to work on my own startup project. I'm using Luminus and enjoy it so I didn't start this thread out of dissatisfaction with Luminus itself but more from a sense of frustration at seeing so little input coming from the community compared with other languages. By what measurement? - James I posted some figures at the beginning of this thread where I was comparing frameworks, not components. A framework is more than the sum of it's components so I don't think comparing Ring and Compojure to Phoenix or Play is relevant. Clojure frameworks aren't the only ones built from components. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 03/05/2015 05:24, Sean Corfield wrote: On Sat, May 2, 2015 at 8:18 PM, Mark Engelberg mark.engelb...@gmail.com mailto:mark.engelb...@gmail.com wrote: Clojure is great for creating new, disruptive web models, but what's the easiest path to creating something that can be done trivially with, say, Drupal or Django? The question tho' is why you'd want to use Clojure for something that is already trivially solved with free packaged software for widely used scripting languages where cheap, plentiful developers are falling over themselves to help... :) Clojure doesn't have to be the solution for every problem. It certainly doesn't need to be the solution for low-value problems... Forgive me if that sounds a little elitist. What if I want to do what Django can do but in Clojure? If Clojure is a better option there should be something which can do more than Django. If my only choice is library composition by definition it doesn't do what Django does well, ie. a fully-structured setup out of the box with a predictable, best of breed set of technologies. There are many businesses, large and small, who will only go with a well-established web framework with a vibrant community. Sadly, Clojure's preference for protecting its niche means it will never be an option for these opportunities, hence its poor showing in job listings. Do we, as a community, want to be paid for what we do? There's one factor missing from this discussion which is framework community. I think there's immense value in the community factor which emerges when a web framework gains a lot of mindshare. From what I've read in this thread there will probably never be anything like RailsConf for a Clojure web framework simply because shared knowledge can only go so far with the library composition approach. Perfection is the enemy of the good (Gustave Flaubert). The whole is greater than the sum of its parts. (Aristotle) gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 03/05/2015 14:39, larry google groups wrote: The industry has been moving against frameworks for 15 years now. The peak of the monolithic framework craze was Struts, back in 2000. After that, people started craving something less bloated. That's why the whole industry was so excited when Rails emerged in 2004. Bruce Eckel summed up the sudden change of mood in his essay The departure of the hyper-enthusiasts: http://www.artima.com/weblogs/viewpost.jsp?thread=141312 But after awhile, people began to feel that even Rails was bloated, which lead to the emergence of micro-frameworks like Sinatra. And then, continuing with the trend, we've seen the emergence of eco-systems, such as Clojure, that allow the trend to go further: Clojure supports such high levels composition that frameworks are no longer needed. And this is the direction the industry has been moving for the last 15 years. Clojure is simply out in front. Most languages don't allow this level of composition. The web development industry as reflected in job postings at Indeed.co.uk is still dominated by the likes of Rails, Django, Laravel, Zend, Symfony Spring so I'm not sure how you've concluded that there's been a 15-year trend towards composition. Ruby and Python have had lightweight composable alternatives for many years but Rails and Django still dominate. I'm not against the composition at all. I just think we need more structured alternatives that we can at least brand and market as well as teach to Clojure beginners. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 02/05/2015 22:06, Fluid Dynamics wrote: Those numbers aren't going to be an apples-to-apples comparison. Contributors may be lower for the Clojure libs because as a Lisp it enables them to be enormously more productive (up to 10x) than the other languages. The greater expressiveness allows the same functionality to live in a smaller codebase (as measured in LOC), likely reducing the number of commits for a given amount of functionality. And Clojure's concurrency and immutability constructs likely reduce the number of bugs, and thus the number of tickets and the number of commits whose primary purpose is to fix bugs. Considering 3 of those languages - Elixir, Haskell and Scala - are functional with immutable data structures and equivalent concurrency to Clojure's I can't quite agree with you. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Clojure needs a web framework with more momentum
I recently did some research into web frameworks on Github. Here's what I found: FRAMEWORK LANG CONTRIBUTORS COMMITS LuminusClojure28678 CaribouClojure 2275 BeegoGolang991522 PhoenixElixir 1241949 YesodHaskell 1303722 LaravelPHP2684421 PlayScala 4176085 SymfonyPHP113020914 RailsRuby 269151000 One could conclude from this that the Clojure community isn't that interested in web development but the last Clojure survey suggests otherwise. Clojure's library composition approach to everything only goes so far with large web applications, as Aaron Bedra reminded us in March last year: www.youtube.com/watch?v=CBL59w7fXw4 . Less manpower means less momentum and more bugs. Furthermore, I have a hunch that Clojure's poor adoption as indicated by Indeed.com maybe due to this immaturity in the web framework sphere. Why is it that Elixir, with a much smaller community and lifespan than Clojure's, has managed to put 4 times as much mindshare into its main web framework when its module output, as measured by modulecounts.com, is a tiny fraction of Clojure's? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 02/05/2015 22:25, Fluid Dynamics wrote: Ah, but none of them are Lisps. No macros, no DSLs, and thus much less of the productivity/code-size-efficiency gains. Elixir's macros are quite Lispy under the hood and all 3 languages can arguably generate sophisticated DSLs. I'm as much a fan of Lisp's benefits as you are but I honestly can't attribute this manpower discrepancy to the fact that Clojure is a Lisp. I think the community's overemphasis on library composition could be a bigger factor. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 03/05/2015 00:39, James Reeves wrote: I agree that web development in Clojure can be improved, but I don't see why it follows that we should be writing web frameworks. Luminus is a web framework. We don't have to write web frameworks at all, that's true. Neither did the Ruby community. They had Sinatra before Rails but it was Rails which brought them huge mindshare and, more importantly, plenty of developers earning a good living. All I'm saying is there's room for both approaches but the outside world, where people make a living, tends to prefer web frameworks. Clojure needs something like Scala's Play/Reactive framework which has a bit of industry momentum behind it. It's been 5 years since Clojure 1.0 so the excuse that Clojure is still finding its feet is no longer valid. Why is it that Elixir, with a much smaller community and lifespan than Clojure's, has managed to put 4 times as much mindshare into its main web framework when its module output, as measured by modulecounts.com http://modulecounts.com/, is a tiny fraction of Clojure's? By what measurement are you drawing this conclusion? You've listed contributors and commits for single repositories, but that will clearly produce erroneous results when comparing a monolithic project to a very modular one. Elixir's Phoenix is as modular as Luminus so the comparison is valid. The 2 leading Rails developers behind it - Jose Valim and Chris McCord - recognised before Elixir reached 1.0 that a strong web framework was essential to gaining mindshare. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 03/05/2015 01:37, Luc Prefontaine wrote: Business case... I have two business cases at hand. None can be done with frameworks w/o making the end products look like any other one in their respective space and having to bend to framework limitations. Being disruptive requires a different approach. Having to write all these individual libs ourselves would make these two product sets much more difficult to create. Experimentation would also suffer a lot. Now we have the elements to create new recipes instead of everyone eating the same dry cake that's been left on the shelf for a year. Aside from HR tagging, I see little value in a branded framework. Being reluctant to be part of a tagged herd, I can't agree with you :) But given my (bad) character this may explain that :) Luc P. All I'm saying is it doesn't have to be either/or. Clojure is big enough for modular and (relatively :)) monolithic approaches. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure needs a web framework with more momentum
On 03/05/2015 00:53, Christopher Small wrote: I disagree with the premise entirely. I think that the Clojure community has just done a better job of building smaller, more modular tooling. And this is frankly something I prefer, and find refreshing in the Clojure sphere (as compared with my previous Rails webdev experience). Note that to put things on the same footing, you'd want to be noting that Luminus depend on Ring and Compojure, with commit counts 761 and 865 resp, and contributor counts 73 and 29 resp. I'm not saying that Clojure can't improve it's offering in web dev with added libraries etc, but I wouldn't want to see us move away from the modularity with which we've built things, because I think it's a win. Just my 2 c Chris Small Most decent web frameworks these days are built from modular components so this distinction is a bit laboured. Rails is built on top of Active* and Rack so the Ring/Compojure distinction is illusory. Laravel is built on top of Symfony components it could be argued that Symfony has played a similar role to Ring/Compojure in the PHP community. Clojure's modular approach is great but I just don't see the need to polarise when there's such a strong business case for structured frameworks. If you look at most of the jobs in web development at Indeed.com they're almost exclusively framework-based. Modular is great but it would also be nice to see a few more Clojure jobs advertised. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Embedded systems and transpiling Clojure to Nim
I've looked around intermittently for something Clojure-esque to fill the scripting/sysadmin void and Pixie is the only thing I've come across which inspires hope. The only remaining issue for me is whether it can tap into existing (Python) libraries as that's what tends to swing the vote for scripting languages. With more languages fragmenting the landscape building a community and sizeable selection of libraries is that much harder but I hope Pixie rises above the legions of Lisp-in-language-X exercises one finds on Hacker News by the dozen. gvim On 01/05/2015 18:10, Timothy Baldridge wrote: Yes, I when we finally get around to doing binary releases I plan on shipping x86_64, x86 and ARM7 binaries, as those are the platforms I have access to. The other thing that would hinder adoption to other platforms is most likely the stacklet library (lightweight threads), Pixie uses this fairly heavily and it would probably need to be ported to PPC. And yes there is a LuaJIT version of Clojure with support for Terra: https://github.com/ohpauleez/cljs-terra Doesn't look like it's been maintained recently however. Timothy On Fri, May 1, 2015 at 10:18 AM, Herwig Hochleitner hhochleit...@gmail.com mailto:hhochleit...@gmail.com wrote: Tim, I went with what I saw on http://pypy.org/features.html ... runs on Intel x86 (IA-32) , x86_64 and ARM platforms, with PPC being stalled Not sure if that's just for the JIT, but if it were, they would list non-JIT platforms separately, no? I'm aware, that you use RPython directly, but you still reuse a lot of RPython from PyPy, right? Has pixie been tested on any non-x86 platform yet? Alan, have you seen https://github.com/raph-amiard/clojurescript-lua ? -- 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%2bunsubscr...@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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com mailto:clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- “One of the main causes of the fall of the Roman Empire was that–lacking zero–they had no way to indicate successful termination of their C programs.” (Robert Firth) -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com mailto:clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Who's using Clojure?
On 06/03/2015 10:46, Fergal Byrne wrote: Clojure is winning one dev at a time. There are almost no cases of teams switching back to Java or Scala once they've worked with Clojure for a while. The same cannot be said for Groovy or Scala, which are being abandoned in good numbers. What's your source evidence for these assertions? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Who's using Clojure?
On 04/03/2015 00:55, Marcus Blankenship wrote: Have things changed in 4 years? ;-) Figures in my last post are for London. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Who's using Clojure?
On 04/03/2015 00:55, Marcus Blankenship wrote: Have things changed in 4 years? ;-) The leading jobs indicator - indeed.co.uk - shows Clojure adoption trailing a long way behind the other 2 main JVM languages - Scala and Groovy. Numbers are exclusive/inclusive of other languages in the job title: Java: 3,889/4,675 Scala: 231/306 Groovy 24/58 Clojure 6/12 It seems Clojure will probably remain a niche language. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Is Caribou Dormant ?
On 27/02/2015 07:26, Sven Richter wrote: Hi, Please have a look at: https://github.com/sveri/closp/ and tell me what you are missing. You might as well open feature / pull requests and I will consider adding them. Best Regards, Sven Great work, Sven. Just what I was looking for. Next - THE BOOK :) gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Is Caribou Dormant ?
On 26/02/2015 09:59, Sébastien Orban wrote: The way Clojure allow us to re use discrete component, rather than to have them integrated from the get go(or getting integrated via various hack), explain partially why there's no huge following to create a framework of this kind. Luminus is a nice example - a start point to understand this, as opinionated as Rails, but with more leeway to change it's bit and piece. Don't forget Hoplon too, it bring us another interesting viewpoint ! (And Boot. I love boot) Clearly different than Rails or Play, but I'm happy about it - otherwise, why wouldn't we use directly Rails ? Do look at the Aaron Bedra video: http://www.youtube.com/watch?v=CBL59w7fXw4. He's the co-author or Programming Clojure and in the video he points out some of the advantages there are, particularly from a security point of view, in adopting a more integrated framework. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Is Caribou Dormant ?
Caribou was Clojure's Rails so I'm sad to see it wither. I think Clojure adoption continues to suffer from the lack of a full-featured, strongly-backed web framework like Play and Rails. I don't see why support for a big framework can't co-exist with lightweight library composition options. The Ruby community embraces diversity from Sinatra all the way up to Rails with plenty of variety in between. Different projects developers require different approaches and there are many advantages in using a large, strongly supported web framework. See Aaron Bedra's excellent video - www.youtube.com/watch?v=CBL59w7fXw4 - for more on this. gvim On 25/02/2015 23:36, Geraldo Lopes de Souza wrote: Hi, I'm checking Caribou, and wanna know if anyone is using it. It appears that it is a dormant project by the looks of the last update https://github.com/caribou/caribou Thanks in advance, Geraldo Lopes de Souza -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] Buddy 0.4.0: Security library for clojure.
On 22/02/2015 11:36, Andrey Antukh wrote: Documentation: https://funcool.github.io/buddy-core/latest/ https://funcool.github.io/buddy-auth/latest/ https://funcool.github.io/buddy-hashers/latest/ https://funcool.github.io/buddy-sign/latest/ Great addition to Clojure web development security. For new users might I suggest adding a namespace table to -core, -hashers and -sign as with -auth? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Help with Liberator POST route
On 19/02/2015 12:56, Jonathan Barber wrote: Replace min with minute in the route (or change minute in the curl POST to min). Because the field names don't agree, the compojure destructing doesn't match and you end up trying to parseInt nil. Cheers Thanks for spotting that one :). Still not there, though. Now getting simply Method not allowed. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Help with Liberator POST route
On 19/02/2015 16:20, Sam Ritchie wrote: Try adding :allowed-methods [:get :post] to your resource. You'll want to use ANY for all liberator routes, since they manage the responses for incorrect content types internally. If you specify GET or POST, it's up to you to return the proper responses if the methods aren't supported (since Compojure will return nil and try to match further down your list of routes. OK, will use ANY. Still puzzled, though, as to why Method not allowed was returned when I clearly specifed POST. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Help with Liberator POST route
On 18/02/2015 15:32, Andy- wrote: Without having tested it: I think you're curl -d format is wrong. It's not semicolon separated: http://superuser.com/questions/149329/what-is-the-curl-command-line-syntax-to-do-a-post-request HTH That solved the curl data submission problem but I'm still getting errors and suspect the POST defroute isn't correct. 'Trouble all the examples of :post submissions in the docs are mixed up with other factors so it's difficult to isolate the correct information. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Help with Liberator POST route
I have a Liberator app which works with this: (defresource user [day month year hour min region location] :available-media-types [application/json] :handle-ok (generate-string (clc/calc day month year hour min 0 (str region / location (defroutes app-routes (GET /user/:day/:month/:year/:hour/:min/:region/:location [day month year hour min region location] (user (Integer/parseInt day) (Integer/parseInt month) (Integer/parseInt year) (Integer/parseInt hour) (Integer/parseInt min) region location)) but doesn't work with POST: (defroutes app-routes (POST /user [day month year hour min region location] (user (Integer/parseInt day) (Integer/parseInt month) (Integer/parseInt year) (Integer/parseInt hour) (Integer/parseInt min) region location)) Testing with with: curl -d day=10;month=8;year=1970;hour=13;minute=45;region=Europe;location=London http://localhost:3000/user returns an error with the first parameter truncated: java.lang.NumberFormatException For input string: 14;month=10;year=1960;hour=13;minute=44;region=Europe;location=London What am I doing wrong and why is the POST data truncated in the error message? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Let bindings and immutability
On 12/02/2015 01:53, Ben Wolfson wrote: The multiple-binding form of let can be recursively transformed into nested lets: (let [name1 value1 name2 value2 ... name value] body) (let [name1 value1] (let [name2 value2] ... (let [name value] body))) All you're doing with your let form is shadowing the name; there's no mutation. If you had something like this: (let [x 1] (let [x (inc x)] (println x)) ;; prints 2 (println x)) ;; prints 1 it would be more obvious; it's less apparent in your case because there's no room for the extra forms. That explains it but I think Clojure's syntax is misleading here. Without knowledge of this magic the mind doesn't readily translate: (let [x 1 x (inc x) x (inc x) x (inc x)] x) into: (let [x 1] (let [x (inc x)] (let [x (inc x)] (let [x (inc x)] x The single bracket pair in the original leads the unwitting newcomer to assume all the x'es are in the same scope. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Let bindings and immutability
On 12/02/2015 01:44, Laurens Van Houtven wrote: Hi, You’re confusing mutation with single assignment. You’re not mutating anything: 1 is still 1, 2 is still 2; you’re just assigning the same name to different numbers. The numbers themselves are immutable. It's x that bothers me, not the values assigned to it. I don't quite get it as x seems to behave here like any old mutable variable in Ruby or Python even if it's not called mutation. I suppose I've just never really got this (big) one :( gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Let bindings and immutability
Why is this possible in a language based on immutability: (let [x 1 x (inc x) x (inc x) x (inc x)] x) ;;= 4 Maybe under the hood (ie. memory registers/pointers etc.) this isn't strictly mutation but as a relative newcomer to Clojure I find it goes against the grain of what I find elsewhere in the language. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Updates to cheat sheet at clojure.org/cheatsheet
On 05/02/2015 20:46, Andy Fingerhut wrote: I'm happy to host an updated ClojureScript cheat sheet, and give technical help and advice to anyone wanting to update it. As I don't use ClojureScript myself (at least not yet), I don't have the motivation to update it myself. Andy Sorry if my reply suggested any responsibility on your part. It was meant as a general observation. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Updates to cheat sheet at clojure.org/cheatsheet
On 05/02/2015 17:04, Andy Fingerhut wrote: Thanks to Alex Miller, who has updated the cheat sheet version published at http://clojure.org/cheatsheet It was updated from v13 to v21. If you are curious what changes have been made between those versions, you can read the change log here: https://github.com/jafingerhut/clojure-cheatsheets/blob/master/src/clj-jvm/CHANGELOG.txt As always, the most recent version, plus tooltips containing doc strings and a search box, can be found by clicking on the Download other versions with tooltips link near the top of that page. Andy Contrasts sharply with cljs-cheatsheet which is now 3 years old: https://github.com/readevalprintlove/clojurescript-cheatsheet gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] Reagent + Sente (+ Heroku) = Rente
On 22/01/2015 07:01, Henrik Mohr wrote: OT: I'm supporting a production app with Clojure/ClojureScript/Datomic/Ring/Sente etc. on a Heroku 2X dyno having 1 GB of RAM. It works like a charm! Best, Henrik What kind of load? Is a basic web app even do-able on a 1X dyno, ie. 512Mb RAM? It's just that the no-cost lead-in is such an attractive proposition for more conservative clients. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] Reagent + Sente (+ Heroku) = Rente
As per the documentation: $ lein run $ lein figwheel Figwheel: focusing on build-ids (client) Compiling ClojureScript. Figwheel: Starting server at http://localhost:3449 Figwheel: Serving files from '(resources|dev-resources|resources-index/dev)/public' Compiling resources/public/js/app.js from (src/rente/client dev)... Compiling resources/public/js/app.js failed. java.io.FileNotFoundException: resources/public/js/app.js (No such file or directory) gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] Reagent + Sente (+ Heroku) = Rente
Thanks. Working now. Great work! Slightly OT: for low cost VPS hosting with only 512Mb or 1Gb RAM Node.js is often the only option. A full-stack Clojurescript option built on similar tech as Sente would be fantastic. gvim On 21/01/2015 12:46, Henrik Mohr wrote: Thanks for your comment, please pull again and retry: lein figwheel Figwheel: focusing on build-ids (client) Compiling ClojureScript. Figwheel: Starting server at http://localhost:3449 Figwheel: Serving files from '(resources|dev-resources|resources-index/dev)/public' Compiling resources/public/js/app.js from (src/rente/client dev)... Successfully compiled resources/public/js/app.js in 14.874 seconds. notifying browser that file changed: /js/app.js notifying browser that file changed: /js/out/goog/deps.js notifying browser that file changed: /js/out/rente/client/views.js notifying browser that file changed: /js/out/rente/client/ws.js notifying browser that file changed: /js/out/start.js notifying browser that file changed: /js/out/rente/client/app.js Best regards, Henrik -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Clojure ecommerce
Are there currently any Clojure ecommerce packages or libraries, preferably open source? Something like Shopify. Failing that, what are Clojure developers using to build ecommerce sites? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure ecommerce
On 05/01/2015 17:39, Sean Corfield wrote: I can't answer the first part but I can say that at World Singles, we're using a combination of Braintree, SBW, Paymentwall, Paypal and a few others, almost all wrapped up in custom Clojure code. Paymentwall is easy to integrate (since it uses a captive UI on the front end and then just pings a URL you provide with a success payload). Braintree is the next easiest since it offers a front end JS library that posts to their servers and then pings a URL you provide with a success payload (although it can also be used easily in server-to-server mode). SBW? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Function order in Clojure vs scripting languages
Considering Clojure has a compile phase why is it more dependent on function definition order than scripting languages like Perl? My naive assumption is that one of the benefits of a compile phase is that every definition is defined ahead of runtime. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Problem with lein new template
With quite a few lein templates I'm having this problem, eg. : $ lein new splat flow1 Failed to resolve version for splat:lein-template:jar:RELEASE: Could not find metadata splat:lein-template/maven-metadata.xml in local ... /repository) This could be due to a typo in :dependencies or network issues. If you are behind a proxy, try setting the 'http_proxy' environment variable. Could not find template splat on the classpath. No proxy involved so I'm not sure where to start. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Chestnut memory usage
I've just setup a `lein new chestnut` project and after: $ lein repl (run) (browser-repl) Activity Monitor shows 3 Java processes: main: 953Mb main: 747Mb java: 634Mb Over 2.3Gb RAM just to get a CLJS browser repl? I haven't even added Lighttable into the mix or IntelliJ :( gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Advice for building backend REST services from scratch using clojure
On 11/04/2014 09:17, Colin Yates wrote: * you can fight it as hard as you like but you will eventually end up using emacs, clojure-mode, cider, paredit and magit and then wonder how you ever lived without it, but not without spending at least a month or two cursing anything to do with emacs :). Whilst I love Emacs, clojure-mode cider for working with Clojure I wasted far too much time trying to get a Clojurescript browser repl working with cider. Tried Weasel but it didn't seem to be keeping up with Clojurescript releases or else it was some other mysterious bug. Austin seemed to require far too much boilerplate addition to get anything working so I eventually resorted to Lighttable which has smooth interaction with a browser repl in Chrome. Until the whole lein/cider/Clojurescript/browser repl toolchain settles into something stable I would caution anyone trumpeting the advantages of Emacs. For Clojurescript the current state of play seems to favour Lighttable and Cursive. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Advice for building backend REST services from scratch using clojure
On 11/04/2014 09:17, Colin Yates wrote: * you can fight it as hard as you like but you will eventually end up using emacs, clojure-mode, cider, paredit and magit and then wonder how you ever lived without it, but not without spending at least a month or two cursing anything to do with emacs :). To supplement my last post, I would add that the main factor against Lighttable, for me, is its insane memory consumption. I don't know whether or not it was due to leaving it on overnight but I found it consuming 1.4GB RAM when I returned to editing the other day. To some accustomed to working with Java/JVM languages this may not be such a big deal but to me it matters as I work on my laptop much of the time. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Clojuredocs broken
Clojuredocs.org seems to be broken. Typing into the search boxes freezes after a few characters and searches often produce a 404 page. I'm on OS X 10.8. Same result with Chrome and Safari. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure cheat sheet now links to ClojureDocs.org for things added since Clojure 1.4
On 29/09/2014 22:52, Andy Fingerhut wrote: As usual, the latest Clojure cheat sheets are available at [2]. The version at clojure.org/cheatsheet http://clojure.org/cheatsheet will be updated some time to match. Andy [1] http://clojuredocs.org [2] http://jafingerhut.github.io Any chance of an updated cljs-cheatsheet? The one listed on the same github page is 3 years old. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] Nginx-Clojure v0.2.5 released!
On 08/09/2014 04:20, Xfeep wrote: In addition one Java thread will tie up one native OS thread. A On Monday, September 8, 2014 10:50:13 AM UTC+8, Yuexiang Zhang wrote: Not only Wildfly but also most of mainstream pure java webservers use thread pool to handle http requests. Nginx-Clojure can also be configurated to use thread pool with one or many JVM instances. Advanced Java webservers use Java NIO (I/O multipexing) to do the first phrase (Http request accepting and simple parsing) then run user business flow with thread pool. The first phrase only need one or very few threads. But at the second phrase (using thread pool) largely existing Java Socket API based libraries such as JDBC drivers, Http Client are blocking so if there are many connections they 'll eat up all threads and make the webserver hang because a OS can only support less threads than connections. By the way threads in JVM are not cheap and they use more memory than pure native OS threads and OS threads are pre-emptive and scheduled at constant time slice so if there are too many threads scheduling will cost too many of cpu cycles to do real works. For large scalar application one JVM instance is really not enough. Typical scenario is we use serveral Java webservers such as tomcat, jetty, glassfish etc, and put a reverse proxy such as Nginx, Haproxy, Apache in the front of them. And Nginx-Clojure make this work easier because it can automatic embed JVM instances into Nginx worker processes and we need not maintain too many webservers. Since JDK 5, JVM instances can share Class data to reduce memory usage and the startup time for java applications. And on our enviroment typically we use coroutine based sockets to work with Apache http client , Solr client ,etc. Coroutines are cooperative and cheaper than threads and be created as much as our memory can bear. Xfeep Thanks. Very informative. 'Looks like Nginx-Clojure is a good option. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] Nginx-Clojure v0.2.5 released!
On 07/09/2014 13:45, Yuexiang Zhang wrote: 0.2.5 (2014-09-07) 1. New Feature: Reference variables in jvm_options different jvm debug ports for jvm processes (issue #42) 2. New Feature: Server Sent Events(SSE) Long polling (issue #41, issue #36) 3. New Feature: Supports 64-bit JDK on 64-bit Windows (issue #40) 4. New Feature: Coroutine based socket supports JDK8 (issue #39) 5. New Feature: More easier to archive Sub/Pub services with Broadcast Events to all Nginx workers (issue #39) 6. New Feature: Asynchronous Channel a wrapper of asynchronous socket to make the usage easier (issue #37) 7. Enhancement: Fix--On Windows a little many write events happen and these events seem useless (issue #35) What are the trade-offs, if any, compared with Immutant + Wildfly (on CentOS 6)? Memory usage is of particular interest. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] Nginx-Clojure v0.2.5 released!
On 07/09/2014 17:51, Yuexiang Zhang wrote: From Nginx-Clojure the most attractive things to us is : 1. Nginx's architecture is Master + Worker processes, Nginx-Clojure embed one JVM in per Worker process. So if any of worker process crashes, the other JVM instances can still work and the Master will recreate a new Worker process embedding with a new JVM instance. 2. Nginx's perfect performance when handle even over 10 thousand connections 3. Coroutine based socket let old Java Socket API based app/libraries won't lock a thread anymore 4. IO (Coroutine based socket, Asynchronous socket Channel) are on top of Nginx IO API which is more worldly-wise than Java NIO on huge scalar server application. 5. JVMs are not goot at huge memory management. Configurable multiple JVM instances (is the same number of Nginx Worker processes) will manage less memory. e.g. we have ten Nginx Worker processes in one Nginx instance every JVM instance will only manage 1/10 memory 6. Nginx already has many modules / features such as rate limit , spdy , pages cache, image filter etc. Most of them maybe are difficult or less effective to be implemented in pure Java world. I'm fairly new to Clojure/JVM but I was under the impression Java webservers such as Wildfly (= JBoss) had a reputation for managing memory efficiently by spawning threads, ie. only a single JVM instance required? Your scenario with multiple JVMs/1 per worker sounds like a much bigger memory footprint but, as I said, I'm new to Java. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Useless Java error messages
On 01/09/2014 17:50, Luc Prefontaine wrote: Where do you see a Java error here ? I see the Clojure implementation reporting that you are trying to apply a numeric operator to a null/nil value :) I agree the JVM stack traces are not nice and polluted by all the frames which may/may not be relevant. The messages are not always as clear as this one either. You do not have any source file line number anywhere in the stack trace pointing to your code ? Luc P. Sorry, I was a bit trigger-happy with this one. Turns out it was Emacs cider truncating the stack trace to a single line. Someone on IRC pointed me to `(pst)` within Emacs cider which displays the full stack trace. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Puzzling list comp error: Don't know how to create ISeq from: clojure.lang.Keyword
I have a long function which produces `list-of-lists` :
((Sun 21 li 13 201.2139410)
(Moon 11 le 21 131.3457459)
..)
before entering a list comprehension (simplified for brevity):
(defn calc ...
(let [ .
...
list-of-lists (map #(rest (first %)) results)]
(for [l list-of-lists
plan (keyword (first l))
deg (Integer/parseInt (second l))
sign (signs (keyword (first (rest (rest l)
min (Integer/parseInt (second (rest (rest l
long (Float/parseFloat (last l))]
{:deg deg :min min :long long})))
When I call the function I get this error:
IllegalArgumentException Don't know how to create ISeq from:
clojure.lang.Keyword clojure.lang.RT.seqFrom (RT.java:505)
I've tested all the bindings in the repl and they produce the desired
data so it seems the final construction of the map is where the problem
lies.
gvim
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Re: Puzzling list comp error: Don't know how to create ISeq from: clojure.lang.Keyword
On 30/08/2014 15:07, Alexey Kachayev wrote: for macro expects each pair to be either binding-form/collection-expr or one of known modifiers (:let, :when, :while). Here: plan (keyword (first l)) you give a pair of binding-form and keyword (which is really impossible to iterate over). If you meant let-binding for plan, dec, min and long, use :let modifier (you can find example in documentation - http://clojuredocs.org/clojure_core/clojure.core/for). Yes, of course :) I confused list comp bindings with let bindings. Thanks. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Puzzling list comp error: Don't know how to create ISeq from: clojure.lang.Keyword
On 30/08/2014 15:07, Alexey Kachayev wrote:
for macro expects each pair to be either binding-form/collection-expr or
one of known modifiers (:let, :when, :while).
Here:
plan (keyword (first l))
you give a pair of binding-form and keyword (which is really impossible
to iterate over).
If you meant let-binding for plan, dec, min and long, use :let modifier
(you can find example in documentation -
http://clojuredocs.org/clojure_core/clojure.core/for).
I'm going to have to reduce the resulting list next so I thought to use
a map version of the list comp. but ran into a similar error:
(defn calc ...
(let [ .
...
list-of-lists (map #(rest (first %)) results)]
(- list-of-lists
(map #(let [plan (keyword (first %))
deg (Integer/parseInt (second %))
sign (signs (keyword (first (rest (rest %)
min (Integer/parseInt (second (rest (rest %
long (Float/parseFloat (last %))]
{plan {:sign sign :deg deg :min min :long long}})))
Don't know how to create ISeq from: astro.calc$calc$fn__29869
Now I'm using a let form but the error is similar.
gvim
2014-08-30 16:47 GMT+03:00 gvim gvi...@gmail.com
mailto:gvi...@gmail.com:
I have a long function which produces `list-of-lists` :
((Sun 21 li 13 201.2139410 tel:201.2139410)
(Moon 11 le 21 131.3457459)
..)
before entering a list comprehension (simplified for brevity):
(defn calc ...
(let [ .
...
list-of-lists (map #(rest (first %)) results)]
(for [l list-of-lists
plan (keyword (first l))
deg (Integer/parseInt (second l))
sign (signs (keyword (first (rest (rest l)
min (Integer/parseInt (second (rest (rest l
long (Float/parseFloat (last l))]
{:deg deg :min min :long long})))
When I call the function I get this error:
IllegalArgumentException Don't know how to create ISeq from:
clojure.lang.Keyword clojure.lang.RT.seqFrom (RT.java:505)
I've tested all the bindings in the repl and they produce the
desired data so it seems the final construction of the map is where
the problem lies.
gvim
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Re: Puzzling list comp error: Don't know how to create ISeq from: clojure.lang.Keyword
On 30/08/2014 17:04, Alexey Kachayev wrote: Thread-first macro -will insert list-of-listsas first argument for map, which is definitely not what you expect. Use threading-last -instead. I've never quite understood the distinction other than - does everything top to bottom and - does the reverse. From what you're saying the choice also affects which position the argument is inserted? If so this presents a complication in that threading through several functions may require the argument to be inserted in different positions? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] Leiningen 2.3.4 released
Has 2.4.3 been fixed yet? I had to revert to 2.4.2 due to clojure.nrepl namespace errors. Could this be due to the release of cider-nrepl 0.7.0 which I have loaded in my .lein/profile.clj? gvim On 24/08/2014 02:27, Dave Sann wrote: Do exclusions apply to plugins? if I have :plugins [[com.keminglabs/cljx 0.4.0 :exclusions [org.clojure/clojure]]] I get ([com.keminglabs/cljx 0.4.0] - [org.clojars.trptcolin/sjacket 0.1.0.6] - [org.clojure/clojure [1.3.0,)] Consider using [com.keminglabs/cljx 0.4.0 :exclusions [org.clojure/clojure]].) ([com.keminglabs/cljx 0.4.0] - [org.clojars.trptcolin/sjacket 0.1.0.6] - [net.cgrand/regex 1.1.0] - [org.clojure/clojure [1.2.0,)] Consider using [com.keminglabs/cljx 0.4.0 :exclusions [org.clojure/clojure]].) ([com.keminglabs/cljx 0.4.0] - [org.clojars.trptcolin/sjacket 0.1.0.6] - [net.cgrand/parsley 0.9.1] - [org.clojure/clojure [1.2.0,)] Consider using [com.keminglabs/cljx 0.4.0 :exclusions [org.clojure/clojure]].) ([com.keminglabs/cljx 0.4.0] - [org.clojars.trptcolin/sjacket 0.1.0.6] - [net.cgrand/parsley 0.9.1] - [net.cgrand/regex 1.1.0] - [org.clojure/clojure [1.2.0,)] Consider using [com.keminglabs/cljx 0.4.0 :exclusions [org.clojure/clojure]].) If it's a dependency, I don get the errors. Dave On Wednesday, 20 November 2013 05:41:07 UTC+11, Phil Hagelberg wrote: Hello folks. I'm happy to announce the release of Leiningen 2.3.4. This one is primarily a bugfix release; though there are a few minor enhancements. ## 2.3.4 / 2013-11-18 * Suggest `:exclusions` to possibly confusing `:pedantic?` dependencies. (Nelson Morris, Phil Hagelberg) * Optionally look for snapshot templates in `new` task. (Travis Vachon) * Allow task chains to be declared without commas in project.clj. (Jean Niklas L'orange) * Support extra configurability in `:pom-plugins`. (Dominik Dziedzic) * Fix a bug where implicit :aot warning triggered incorrectly. (Jean Niklas L'orange) * Fix a bug where `lein repl connect` ignored port argument. (Toby Crawley) This brings all the functionality of the deprecated lein-pedantic plugin into Leiningen itself. The snapshot template functionality allows template developers to test their changes more easily, and the support for improved task chaining allows us to express higher-order task invocations in project.clj in a properly nested way without resorting to commas, which are a hack to work around shell arguments' lack of structuring. As usual, running `lein upgrade` will pull in the latest stable release, and if you run into any issues you can always run `lein downgrade 2.3.3` to go back to the previous release. Please report any issues on the Leiningen mailing list or the GitHub issue tracker. Thanks to all the contributors and users who helped us get to this release. -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 --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com mailto:clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: IllegalStateException Attempting to call unbound fn
On 22/08/2014 07:54, Serzh Nechyporchuk wrote: You should import LinkedBlockingQueue to your namespace. (ns ... (:import java.util.concurrent.LinkedBlockingQueue)) (recommended way) or (import 'java.util.concurrent.LinkedBlockingQueue) Why do this error is misleading for you? Because the original error made no mention of this. Only a reference to the last function call: (testf 42) I'm also pretty sure I had the function containing this Java call working in my Emacs buffer before I added the testf function. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
IllegalStateException Attempting to call unbound fn
I can't work out why this code produces an exception: (defn fints [ args] (assert (every? integer? args)) (vec args)) (defn testf [x] (fints x)) (testf 42) IllegalStateException Attempting to call unbound fn: #'gh1.core/testf clojure.lang.Var$Unbound.throwArity (Var.java:43) gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: IllegalStateException Attempting to call unbound fn
On 21/08/2014 09:39, Serzh Nechyporchuk wrote:
Can you put all file that you try to load?
Here it is. Just bits and pieces for practice:
(ns gh1.core)
(defn foo
I don't do a whole lot.
[x]
(println x Hello, World!))
(foo Garry)
(doseq [x [1 2 3 4 5]
y [11 22 33 44 55]]
(prn (* x y)))
(defn mp [] (map #(+ % 5) [1 2 3 4 5]))
(map #(+ % 5) [1 2 3 4 5])
(prn-str {:a 1 :b 2 :c 3})
(defn fill-queue [filler-func]
(let [q (LinkedBlockingQueue. 10)
fill (fn fill [x]
(if (.offer q x 1 TimeUnit/SECONDS)
x
(recur x)))
f (future (filler-func fill) nil)]
((fn drain []
(lazy-seq
(let [x (.take q)]
(cons x (drain
(defmacro ints [ args]
(assert (every? integer? args))
(vec args))
(defn fints [ args]
(assert (every? integer? args))
(vec args))
(defn testf [x]
(fints x))
(testf 42)
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Re: IllegalStateException Attempting to call unbound fn
On 21/08/2014 14:35, Serzh Nechyporchuk wrote: This code works fine for me. Did you try to reload repl? Reloaded but now getting this error: CompilerException java.lang.IllegalArgumentException: Unable to resolve classname: LinkedBlockingQueue Maybe something needs :require-ing If this is the source of the original problem the error messages are very misleading and need some work. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Is Clojure a language for growth?
On 20/08/2014 14:09, Phillip Lord wrote: When I got my first Java job, I had no experience at it; day one was popping into town to buy a how to program Java book. Actually, I had very little experience and no qualifications in programming at all; perhaps the world was a different place then. How long ago was that? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure production environment
On 20/08/2014 14:18, Larry Staton Jr. wrote: Immutant behind nginx behind Elastic Load Balancer on AWS. Deploy tool of choice is make. I understood that Immutant is now a library which runs on something like Wildfly 8. Anyone using Wildfly as I'm considering it for an app? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re-upload corrupted Rich Hickey video?
Clojure for Lisp Programmers Part 1 by Rich Hickey: http://www.youtube.com/watch?v=cPNkH-7PRTk seems to have become corrupted. Can anyone re-upload the original? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
When to prefer keywords as functions?
I'm reading Cloujure in Action as an introduction to Clojure and, although, I understand a keyword can be used as a function I don't understand the difference between: (ns org.currylogic.damages.http.expenses (:require [clojure.data.json :as json-lib] [clojure.xml :as xml-core])) ... and (ns org.currylogic.damages.http.expenses (require [clojure.data.json :as json-lib] [clojure.xml :as xml-core])) When is it idiomatic or even preferable to substitute a function with a keyword equivalent? gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: When to prefer keywords as functions?
On 03/07/2014 18:36, James Reeves wrote: The reason for this is to make it clear that you're not executing the require function directly, but instead passing options to the ns form. I don't understand not executing the require function directly. I've also seen the when function called as :when in the body of a let statement so could you elaborate on this non-macro example? I need to be clear on when it is preferable to use a keyword function rather than a normal function call. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure equivalent of 3-level enumeration in Ruby?
On 18/06/2014 17:07, Gary Trakhman wrote: Try http://clojuredocs.org/clojure_core/clojure.core/for I couldn't get anywhere near what was so easy in Ruby. Nested enumeration seems difficult in Clojure. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure equivalent of 3-level enumeration in Ruby?
On 20/06/2014 13:38, Timothy Baldridge wrote: Care to explain? How does it get much simpler than: (for [x some-collection y x z y] z) Because it's 3 levels deep and requires substituting the vars back into maps to then create a returned map. Your for example doesn't emulate Ruby's each_with_index, as in the example, as far as I'm aware. I'm fairly new to Clojure so the obvious may not be so obvious to me yet :) gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Clojure equivalent of 3-level enumeration in Ruby?
On 20/06/2014 14:28, Dave Della Costa wrote:
Rather than start with the code you are trying to duplicate, consider
the data structure(s) that you have as input and the data structure you
want to end up with.
It's certainly possible to emulate the kind of nested loop structure you
are asking about in Clojure, but most likely it's not how you'd
structure the solution in the first place. For one, the Ruby example
heavily depends on mutability, which is not as common in Clojure-land.
But here's one rough sketch, just as a simple example:
I might make personals and aspected vectors of keywords, and I'd end up
doing something more like
(def find-aspects
[astro-data]
(reduce #(update-in %1 [%2] (do-aspected-stuff ...)) {} personals))
With do-aspected-stuff being something like:
(defn do-aspected-stuff
[personal-key astro-data]
(reduce #(if (= personal-key %2) %1 (calc-angles astro-data %1 %2)) {}
aspected))
and so on and so forth with calc-angles doing its own looping thing with
all the calculations you have to do (glossing over the rest as hopefully
you get the picture at this point), and everything gets deposited in the
hash-map at the very top of the chain at the end.
Hope this helps.
DD
Great, thanks. These are the kind of pointers I was looking for without
expecting anyone to do the whole job :). Someone on IRC also mentioned
prismatic/plumbing as possibly helpful.
gvim
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Re: Leiningen 2.4.2 upgrade causing problems
On 18/06/2014 04:05, Sean Corfield wrote:
works for me...
Leiningen 2.4.2; Java build 1.8.0_05-b13; OS X 10.8.5 - lein help new
works fine outside of a project and also inside the context of a
project that depends on Clojure 1.6.0.
Are you running lein inside a project or outside? What do you have in
your profiles.clj file?
Sean
My ~/.lein/profiles.clj below. No problems if I remove it and run `lein
help new` again.
{:user
{:plugins
[[cider/cider-nrepl 0.7.0-SNAPSHOT]
[lein-ancient 0.5.5]
[lein-immutant 1.2.1]
[com.jakemccrary/lein-test-refresh 0.5.0]]
:dependencies
[[org.clojure/clojure 1.6.0]
[nrepl-inspect 0.4.1]
[org.clojure/tools.trace 0.7.8]
[co.paralleluniverse/pulsar 0.5.1]]
:repl-options
{:nrepl-middleware
[cider.nrepl.middleware.classpath/wrap-classpath
cider.nrepl.middleware.complete/wrap-complete
cider.nrepl.middleware.info/wrap-info
cider.nrepl.middleware.inspect/wrap-inspect
cider.nrepl.middleware.stacktrace/wrap-stacktrace
cider.nrepl.middleware.trace/wrap-trace]}}}
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Re: Leiningen 2.4.2 upgrade causing problems
On 18/06/2014 04:05, Sean Corfield wrote: Leiningen 2.4.2; Java build 1.8.0_05-b13; OS X 10.8.5 - lein help new works fine outside of a project and also inside the context of a project that depends on Clojure 1.6.0. Are you running lein inside a project or outside? What do you have in your profiles.clj file? Sean Running `lein help new` from ~/.lein . By process of elimination I discovered the culprit is: [co.paralleluniverse/pulsar 0.5.1] It's still weird, though, because I'm almost certain I checked this when I set about debugging my profiles.clj file yesterday. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Clojure equivalent of 3-level enumeration in Ruby?
I have a method in Ruby that involves 3-level enumeration and would like
to rewrite it in Clojure. Without asking anyone to do the job :), what
is the best equivalent to this kind of Ruby iteration in Clojure? I
looked at prewalk and postwalk but wasn't convinced that was what's
required. Map could also get a bit messy here.
gvim
SIGNS = { ar:'Aries', ta:'Taurus', ge:'Gemini', cn:'Cancer', le:'Leo',
vi:'Virgo',
li:'Libra', sc:'Scorpio', sa:'Sagittarius', cp:'Capricorn',
aq:'Aquarius', pi:'Pisces' }
RULERS = {Aries:[:Mars], Taurus:[:Venus], Gemini:[:Mercury],
Cancer:[:Moon], Leo:[:Sun], Virgo:[:Mercury], Libra:[:Venus],
Scorpio:[:Mars, :Pluto], Sagittarius:[:Jupiter],
Capricorn:[:Saturn], Aquarius:[:Saturn, :Uranus], Pisces:[:Jupiter,
:Neptune]}
ANGLES = {cnj:{orb:7.5, deg:[0], type:'g'}, squ:{orb:6, deg:[90,270],
type:'r'},
tri:{orb:6, deg:[120,240], type:'g'}, opp:{orb:7.5,
deg:[180], type:'r'}}
PERSONALS = %i(Sun Moon Mercury Venus Mars)
ASPECTED = %i(Sun Moon Mercury Venus Mars Jupiter Saturn Uranus Neptune
Pluto)
def find_aspects(astro_data)
results = {}
PERSONALS.each_with_index do |p,i|
results[p] = {}
ASPECTED[i+1..9].each do |a|
next if p == a
ANGLES.each do |asp, data|
data[:deg].each do |d|
exact = astro_data[p][:long] + d
exact -= 360 if exact = 360
range_start = exact - data[:orb]
range_end = (exact + data[:orb] = 360) ? (exact + data[:orb]
- 360) : (exact + data[:orb])
target_long = astro_data[a][:long]
if target_long = range_start target_long = range_end
width = target_long = exact ? (exact - target_long) :
(target_long - exact)
results[p][a] = [asp,width]
end
end
end
end
end
return results
end
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Leiningen 2.4.2 upgrade causing problems
OS X Mountain Lion / lein 2.4.2 / clojure 1.6.0 / Java(TM) SE Runtime Environment (build 1.8.0_05-b13) Running `lein help new` I'm getting an exception including this: Caused by: java.io.FileNotFoundException: Could not locate clojure/data/priority_map__init.class or clojure/data/priority_map.clj on classpath: at clojure.lang.RT.load(RT.java:443) Everything was working before the recent Leiningen upgrade. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Convert clj-time date-time to UTC
I want to convert a time specified with a TZ datababse timezone such as America/Caracas into a UTC date-time but I can only find in clj-time from-time-zone and to-time-zone allowing the zone to be specified as a string. I want: (t/some-utc-func (t/date-time 1967 7 31 6 30) (t/time-zone-for-id America/Caracas)) to give me: #DateTime 1967-07-31T10:30:00.000-00:00 Even the (t/from-time-zone []) output would do if I could read the UTC date and time straight from it. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Convert clj-time date-time to UTC
On 14/06/2014 16:12, Stephen Gilardi wrote: This is not quite to your exact specification, but should help you to write what you want: user (defn to-utc [dt] (t/to-time-zone dt (t/time-zone-for-offset 0))) #'user/to-utc user (to-utc (t/from-time-zone (t/date-time 1967 7 31 6 30) (t/time-zone-for-id America/Caracas))) #DateTime 1967-07-31T10:30:00.000Z Thanks. Can't think why it's not baked into the library, though, as it must be a common requirement. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Convert clj-time date-time to UTC
On 14/06/2014 17:59, Stephen Gilardi wrote: You're welcome. As another small refinement, I noticed that there's a var for the utc timezone: (t/time-zone-for-offset 0) can be replaced with t/utc I tried t/utc in place of your function but it didn't produce the desired result. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Convert clj-time date-time to UTC
On 14/06/2014 21:59, Michael Klishin wrote: 2014-06-14 20:49 GMT+04:00 gvim gvi...@gmail.com mailto:gvi...@gmail.com: Can't think why it's not baked into the library, though, as it must be a common requirement. Feel free to submit a pull request and a few tests. The clj-time maintainers are responsive and the library is primarily driven by user feedback at this point. -- MK I'll have to leave it to the gods as I'm a mere mortal :) gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: clj-commons-exec/sh adding newline to command
Then why does this work when executed manually in the shell?
./swetest -p0123456789t -fPZl -b14.10.1960 -ut13:45 -roundmin
-head -true -eswe
gvim
On 09/06/2014 08:21, Ray Miller wrote:
On 9 June 2014 02:03, gvim gvi...@gmail.com wrote:
(ns gh1.tmp
(:require [clj-commons-exec :as exec]
[clj-time.core :as t]))
(defn calc [day month year hour min sec zone]
(let [bin /Users/zephyr/html/astro/bin/swetest
data (str -p0123456789t -fPZl -b day . month . year -ut
hour : min)
flags -roundmin -head -true -eswe]
(exec/sh [bin data flags])))
gh1.tmp @(calc 31 11 1967 16 45 0 Europe/London)
{:exit 1, :out illegal option -roundmin -head -true -eswe\n, :err nil,
:exception #ExecuteException org.apache.commons.exec.ExecuteException:
Process exited with an error: 1 (Exit value: 1)}
Why has exec/sh added a newline to the command line? How to get rid of it?
It hasn't. That is the output from the command you executed.
Ray.
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Re: clj-commons-exec/sh adding newline to command
On 09/06/2014 14:04, Ray Miller wrote: I suspect exec/sh is expecting a list of options. The way you are calling it, swetest is called with only two arguments (data and flags). When you type the command at the shell, the shell splits on whitespace before invoking exec, so it sees 8 arguments. I would expect this to work: (exec/sh [/Users/zephyr/html/astro/bin/swetest -p0123456789t -fPZl -b14.10.1960 -ut13:45 -roundmin -head -true -eswe]) Ray. Got it. Thanks very much. gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
clj-commons-exec/sh adding newline to command
(ns gh1.tmp
(:require [clj-commons-exec :as exec]
[clj-time.core :as t]))
(defn calc [day month year hour min sec zone]
(let [bin /Users/zephyr/html/astro/bin/swetest
data (str -p0123456789t -fPZl -b day . month . year
-ut hour : min)
flags -roundmin -head -true -eswe]
(exec/sh [bin data flags])))
gh1.tmp @(calc 31 11 1967 16 45 0 Europe/London)
{:exit 1, :out illegal option -roundmin -head -true -eswe\n, :err nil,
:exception #ExecuteException org.apache.commons.exec.ExecuteException:
Process exited with an error: 1 (Exit value: 1)}
Why has exec/sh added a newline to the command line? How to get rid of it?
gvim
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Re: Eval-ing a map expression in Emacs Live doesn't seem to work
On 06/06/2014 17:15, J Irving wrote: Not sure I follow. When you eval in the REPL buffer, you just have to type (foo name) and hit return. When you do this (and you're in the correct namespace, which you can tell by seeing the namespace in the REPL prompt) it should evaluate correctly. Is that not happening? What buffer are you hitting C-x C-e from? cheers, J Thanks, that's what I needed. I realise I've muddled C-x C-e with a command within Light Table which works with the closing paren of an s-expression. In Emacs you have to be on the next line following the closing paren. Got it now. The road to Emacs/Clojure enlightenment is once more open :) gvim -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
