Re: Confused about comp
On Saturday, 15 December 2012 17:42:05 UTC+10, puzzler wrote:
>
> (I took the liberty of replacing #(= \a %) with #{\a})
>
> On Fri, Dec 14, 2012 at 11:37 PM, Mark Engelberg
>
> > wrote:
>
>> (comp (partial apply str) (partial filter #{\a}))
>>
>
>
You're most welcome. Thank you for this.
A couple of questions, if I may.
In (partial apply str) why the apply?
Given the apply, why the partial?
Thanks
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Re: clojure.core/format generalization
Sorry for that stupid question. Was coding to much. :) Cheers. On Saturday, December 15, 2012 3:42:24 AM UTC+3, Alexander Semenov wrote: > > Hi, folks. > > I need a generalized version of clojure.core/format function, i.e. > function that accepts a pattern like "-%s-%s-%s-", two functions and format > args. It most return a 'formatted' seq. The first supplied function is > called for each non-special character from the pattern and returns its > uplifted version (wrapped in vector, for example), another function is > called for each special character substitution which is then uplifted as > well. So, to demonstrate its usage perspective: > > (gen-format > "-%s-%s-%s-" > vector > (fn [x] (vector x (get-some-meta-info x)) > :one > :two > :three) > > Result: ([-] [:one some-meta-1] [-] [:two some-meta-2] [-] [:three > some-meta-3] [-]). > > Should I implement such an abstraction myself or there is something ready? > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Confused about comp
The apply is needed here because filter is going to return a sequence of strings and you really want to `apply' str on it. -BG On Sat, Dec 15, 2012 at 1:39 PM, Peter West wrote: > A couple of questions, if I may. > > In (partial apply str) why the apply? > > Given the apply, why the partial? -- Baishampayan Ghose b.ghose at gmail.com -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Confused about comp
On Saturday, 15 December 2012 18:09:13 UTC+10, Peter West wrote:
>
>
>
> On Saturday, 15 December 2012 17:42:05 UTC+10, puzzler wrote:
>>
>> (I took the liberty of replacing #(= \a %) with #{\a})
>>
>> On Fri, Dec 14, 2012 at 11:37 PM, Mark Engelberg wrote:
>>
>>> (comp (partial apply str) (partial filter #{\a}))
>>>
>>
>>
> You're most welcome. Thank you for this.
>
> A couple of questions, if I may.
>
> In (partial apply str) why the apply?
>
> Given the apply, why the partial?
>
>
About the 'apply', apply takes at least [f args], but (apply str) has only
[f]. 'partial' establishes a context in which some args are assumed to be
missing, and are assumed to be applied when the partial function is
applied. Is this correct?
'comp' doesn't work in the place of 'partial'. So (comp apply str) doesn't
work for (at least) the same reason that (apply str) doesn't work. 'str'
returns a single value, which means that the arg list to be presented to
apply consists of only a single value, instead of [f args]. Is this correct?
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Re: Clojure Full Syntactical Reference
On Friday, December 14, 2012 6:40:50 PM UTC-5, lin...@redhandgaming.net wrote: > > Where can I find, or does there exist, a place where I can view all > Clojure's built in functions with a short description of their arguments > and what they do? > As Andy pointed out, Clojuredocs is the place for that. Extremely handy is the [cheatsheet](http://clojure.org/cheatsheet), which contains links throughout to clojuredocs for many commonly-used functions. (Note the link at the top of that page which points to versions of the cheatsheet with tooltips). ---John -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Confused about comp
Thanks Baishampayan. I'm still puzzled about this though, because (doc str) says that with one argument x, str returns x.toString(). What it returns is "clojure.lang.LazySeq@fe1" So it seems to be returning a lazy sequence. Why is the function not simply applied? Other functions are "applied" simple by expressing their form. On Saturday, 15 December 2012 18:52:26 UTC+10, Baishampayan Ghose wrote: > > The apply is needed here because filter is going to return a sequence > of strings and you really want to `apply' str on it. > > -BG > > On Sat, Dec 15, 2012 at 1:39 PM, Peter West > > > wrote: > > A couple of questions, if I may. > > > > In (partial apply str) why the apply? > > > > Given the apply, why the partial? > > > > -- > Baishampayan Ghose > b.ghose at gmail.com > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Confused about comp
On Saturday, 15 December 2012 17:42:05 UTC+10, puzzler wrote:
>
> (I took the liberty of replacing #(= \a %) with #{\a})
>
> On Fri, Dec 14, 2012 at 11:37 PM, Mark Engelberg
>
> > wrote:
>
>> (comp (partial apply str) (partial filter #{\a}))
>>
>
>
Puzzler,
Your change replaces the single argument function with a single element
set. This is because a set is a function of its members, returning true if
an argument is a member of the set?
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Re: Confused about comp
> I'm still puzzled about this though, because (doc str) says that with one > argument x, str returns x.toString(). What it returns is > "clojure.lang.LazySeq@fe1" > > So it seems to be returning a lazy sequence. Why is the function not > simply applied? Other functions are "applied" simple by expressing their > form. > No, it is returning exactly as advertised, the result of calling #toString() on an instance of LazySeq. The difference between (str a-lazy-seq) and (apply str a-lazy-seq) is that in the first case str is called with one argument, the lazy seq, and in the second case with, say 5 arguments, for a lazy seq of length 5. The lazy seq is *spliced* into separate arguments to str. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Confused about comp
An example will make it clear for you...
(str ) => (str '("foo" "bar" "baz"))
(apply str ) => (str "foo" "bar" "baz)
Hope this helps.
-BG
On Sat, Dec 15, 2012 at 3:48 PM, Peter West wrote:
> Thanks Baishampayan.
>
> I'm still puzzled about this though, because (doc str) says that with one
> argument x, str returns x.toString(). What it returns is
> "clojure.lang.LazySeq@fe1"
>
> So it seems to be returning a lazy sequence. Why is the function not simply
> applied? Other functions are "applied" simple by expressing their form.
>
>
> On Saturday, 15 December 2012 18:52:26 UTC+10, Baishampayan Ghose wrote:
>>
>> The apply is needed here because filter is going to return a sequence
>> of strings and you really want to `apply' str on it.
>>
>> -BG
>>
>> On Sat, Dec 15, 2012 at 1:39 PM, Peter West wrote:
>> > A couple of questions, if I may.
>> >
>> > In (partial apply str) why the apply?
>> >
>> > Given the apply, why the partial?
>>
>>
>>
>> --
>> Baishampayan Ghose
>> b.ghose at gmail.com
>
> --
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b.ghose at gmail.com
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Re: Need ideas for carving project into namespaces
I know my reply is a bit delayed but the past 2-3 days have been frantic! On 12/12/12 18:00, Michał Marczyk wrote: @Jim: That function generates factory functions which themselves use no reflection and incur no performance penalty at all. The only performance hit visible at runtime comes from the fact that generating those factory functions involves compiling code at runtime (but you should hopefully be able to arrange things so that you only need to do it once per type). aaa ok that is good to know...I'm not sure what you mean by "re-arrange things so that you only need to do it once per type " though. I am only interested in creating pieces of a single type per 'session'. My lib for writing board games (core/gui/searching/ai) deals with one game at a time. IN other words you can't open up a single gui showing 2 games or do any tree-searching for that matter! That makes sense right? Also, the class named by the recordname argument needs to exist when record-factory is called, so I'm not sure it can really be of much help in dealing with circular dependencies. Well, surely it must 'exist', however it doesn't have to be :required or :imported or :used so you avoid creating circular dependencies in the first place. I can confirm this because for example, my 'games/chess' ns depends on 'lib/core' which depends on 'lib/util' (where the record-factory is) and i can create a ChessPiece record by passing the fully qualified record-name from chess.clj -> core.clj -> util.clj and get back the actual ChessPiece object. No circular dependencies. If i didn't have that, I'd have to :import ChessPiece in util.clj and in fact the end-user would need a way of injecting :imports into util.clj which I 'm not even sure it's possible. Now the end-user uses ctor directly (which he has access to as he is the one who define the pieces for the game he's writing). However it is perfectly possible to go the "long way" and pass a string to core.clj and then to util.clj and return the object back to chess.clj. I'm certainly not advocating this is a good or a nice approach but it can be done if performance is not considered critical. In fact, the discussion going on on this thread is quite enlightening... I never realised people were having so many problems with circular dependencies. Jim -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Need ideas for carving project into namespaces
@Mark
To be honest i cannot answer your question...however it works...demo
follows:
sorted@sorted-desktop:~$ lein2 repl
nREPL server started on port 50832
REPL-y 0.1.0-beta10
Clojure 1.4.0
Exit: Control+D or (exit) or (quit)
Commands: (user/help)
Docs: (doc function-name-here)
(find-doc "part-of-name-here")
Source: (source function-name-here)
(user/sourcery function-name-here)
Javadoc: (javadoc java-object-or-class-here)
Examples from clojuredocs.org: [clojuredocs or cdoc]
(user/clojuredocs name-here)
(user/clojuredocs "ns-here" "name-here")
user=> (defn record-factory [recordname]
#_=> (let [recordclass ^Class (resolve (symbol recordname))
#_=> max-arg-count (apply max (map #(count
(.getParameterTypes ^java.lang.reflect.Constructor %))
#_=>(.getConstructors
recordclass)))
#_=> args (map #(symbol (str "x" %)) (range (- max-arg-count
2)))]
#_=> (eval `(fn [~@args] (new ~(symbol recordname) ~@args)
#'user/record-factory
user=> (ns foo)
nil
foo=> (defrecord Bar [x y])
foo.Bar
foo=> (ns user) ;;back to user ns (doesn't depend on foo)
nil
user=> ((record-factory "foo.Bar") 1 2)
#foo.Bar{:x 1, :y 2}
user=> (Bar. 1 2)
CompilerException java.lang.IllegalArgumentException: Unable to resolve
classname: Bar, compiling:(NO_SOURCE_PATH:1)
Jim
On 12/12/12 17:59, Mark Engelberg wrote:
On Wed, Dec 12, 2012 at 9:53 AM, Jim - FooBar(); > wrote:
Yes it would...You're using reflection so no need to :use or
:require the namespaces any more.
Point your browser here if you're not following:
https://github.com/jimpil/Clondie24/blob/master/src/Clondie24/lib/util.clj
What gets those classes loaded/imported to begin with? I don't see
how the classes ever get built if nobody requires the file containing
the defrecords.
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another n00b defrecord combination question
I have defined these types of records for modelling a simple shopping cart: ; An item in the cart (defrecord Item [id name product quantity purchased]) ; The product that relates to the item in the cart (defrecord Product [id name description prices]) ; A price definition (defrecord Price [price tax-rate currency]) ; Sample items (def items [ (->Item 1 "Brogues" "P-123" 1 true) (->Item 2 "Underpants" "P-345" 1 false) (->Item 3 "Shirt" "P-678" 1 true) ]) ; Sample products (def products [ (->Product "P-123" "Brogues" "Men's Leather Slip on Brogues" (->Price 93.00 21 "EURO")) (->Product "P-345" "Underpants" "CK Y Fronts" (->Price 23.50 21 "EURO")) (->Product "P-678" "Shirt" "Slim Fit White Vest Shirt" (->Price 45.99 21 "EURO")) (->Product "P-1231" "Table" "Coffee Table" (->Price 375 21 "EURO")) (->Product "P-3451" "Chairs" "Set of Four(4) chairs" (->Price 200 21 "EURO")) (->Product "P-6781" "TableCloth" "Classic red and white checks 2m x 2m" (->Price 17.99 21 "EURO")) ]) My requirement is to combine data from the two collections such that I can show the detailed product information for any item, for example: (->Item 3 "Shirt" "Slim Fit White Vest Shirt" (->Price 45.99 21 "EURO") 1 true) When I tried to use merge-with union I had an error which surprised me since I thought records are also maps: user=> (merge-with union items products) ClassCastException user.Product cannot be cast to java.util.Map$Entry clojure.core/key (core.clj:1465) Although I will fight on, any tips from any of you that have done this before would be greatly helped. Thanks ray -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Confused about comp
>
> (comp (partial apply str) (partial filter #{\a}))
>
Or, (comp join (partial filter #{\a}))
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Re: another n00b defrecord combination question
I think I am close to answering this myself (which is always nice!)
I have done the necessary joins with map and I can return a product
description
user=> (map (fn [item product] (= (:product item (:id product)))
(:description product)) items products)
("Men's Leather Slip on Brogues" "CK Y Fronts" "Slim Fit White Vest Shirt")
Or a purchased status for the matching item
user=> (map (fn [item product] (= (:product item (:id product)))
(:purchased item)) items products)
(true false true)
But I have my knickers in a twist when I want to get more than one value
out or a combination of values.
user=> (map (fn [item product] (= (:product item (:id product))) (:id item
:description product)) items products)
(user=> IllegalArgumentException Wrong number of args passed to keyword:
:id clojure.lang.Keyword.throwArity (Keyword.java:85)
So does anyone have the last bit of syntax to help me take back a list of
values from the inputs?
Thanks
ray
On Saturday, December 15, 2012 5:25:59 PM UTC+1, mond wrote:
>
> I have defined these types of records for modelling a simple shopping cart:
>
> ; An item in the cart
> (defrecord Item [id name product quantity purchased])
>
> ; The product that relates to the item in the cart
> (defrecord Product [id name description prices])
>
> ; A price definition
> (defrecord Price [price tax-rate currency])
>
>
> ; Sample items
> (def items [
> (->Item 1 "Brogues" "P-123" 1 true)
> (->Item 2 "Underpants" "P-345" 1 false)
> (->Item 3 "Shirt" "P-678" 1 true)
> ])
>
> ; Sample products
> (def products [
> (->Product "P-123" "Brogues" "Men's Leather Slip on
> Brogues" (->Price 93.00 21 "EURO"))
> (->Product "P-345" "Underpants" "CK Y Fronts" (->Price
> 23.50 21 "EURO"))
> (->Product "P-678" "Shirt" "Slim Fit White Vest Shirt"
> (->Price 45.99 21 "EURO"))
> (->Product "P-1231" "Table" "Coffee Table" (->Price 375 21
> "EURO"))
> (->Product "P-3451" "Chairs" "Set of Four(4) chairs"
> (->Price 200 21 "EURO"))
> (->Product "P-6781" "TableCloth" "Classic red and white
> checks 2m x 2m" (->Price 17.99 21 "EURO"))
> ])
>
> My requirement is to combine data from the two collections such that I can
> show the detailed product information for any item, for example:
>
> (->Item 3 "Shirt" "Slim Fit White Vest Shirt" (->Price 45.99
> 21 "EURO") 1 true)
>
> When I tried to use merge-with union I had an error which surprised me
> since I thought records are also maps:
>
> user=> (merge-with union items products)
> ClassCastException user.Product cannot be cast to java.util.Map$Entry
> clojure.core/key (core.clj:1465)
>
> Although I will fight on, any tips from any of you that have done this
> before would be greatly helped.
>
> Thanks
>
> ray
>
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Re: another n00b defrecord combination question
OK - I have it now:
(map (fn [item product] (= (:product item (:id product))) [(:id item)
(:description product)]) items products)
This feels OK to me but if anyone has a nicer / more idiomatic solution, I
will be happy to take feedback.
ray
On Saturday, December 15, 2012 7:08:21 PM UTC+1, mond wrote:
>
> I think I am close to answering this myself (which is always nice!)
>
> I have done the necessary joins with map and I can return a product
> description
>
> user=> (map (fn [item product] (= (:product item (:id product)))
> (:description product)) items products)
> ("Men's Leather Slip on Brogues" "CK Y Fronts" "Slim Fit White Vest Shirt")
>
> Or a purchased status for the matching item
>
> user=> (map (fn [item product] (= (:product item (:id product)))
> (:purchased item)) items products)
> (true false true)
>
> But I have my knickers in a twist when I want to get more than one value
> out or a combination of values.
>
> user=> (map (fn [item product] (= (:product item (:id product))) (:id item
> :description product)) items products)
> (user=> IllegalArgumentException Wrong number of args passed to keyword:
> :id clojure.lang.Keyword.throwArity (Keyword.java:85)
>
> So does anyone have the last bit of syntax to help me take back a list of
> values from the inputs?
>
> Thanks
>
> ray
>
>
> On Saturday, December 15, 2012 5:25:59 PM UTC+1, mond wrote:
>>
>> I have defined these types of records for modelling a simple shopping
>> cart:
>>
>> ; An item in the cart
>> (defrecord Item [id name product quantity purchased])
>>
>> ; The product that relates to the item in the cart
>> (defrecord Product [id name description prices])
>>
>> ; A price definition
>> (defrecord Price [price tax-rate currency])
>>
>>
>> ; Sample items
>> (def items [
>> (->Item 1 "Brogues" "P-123" 1 true)
>> (->Item 2 "Underpants" "P-345" 1 false)
>> (->Item 3 "Shirt" "P-678" 1 true)
>> ])
>>
>> ; Sample products
>> (def products [
>> (->Product "P-123" "Brogues" "Men's Leather Slip on
>> Brogues" (->Price 93.00 21 "EURO"))
>> (->Product "P-345" "Underpants" "CK Y Fronts" (->Price
>> 23.50 21 "EURO"))
>> (->Product "P-678" "Shirt" "Slim Fit White Vest Shirt"
>> (->Price 45.99 21 "EURO"))
>> (->Product "P-1231" "Table" "Coffee Table" (->Price 375
>> 21 "EURO"))
>> (->Product "P-3451" "Chairs" "Set of Four(4) chairs"
>> (->Price 200 21 "EURO"))
>> (->Product "P-6781" "TableCloth" "Classic red and white
>> checks 2m x 2m" (->Price 17.99 21 "EURO"))
>> ])
>>
>> My requirement is to combine data from the two collections such that I
>> can show the detailed product information for any item, for example:
>>
>> (->Item 3 "Shirt" "Slim Fit White Vest Shirt" (->Price 45.99
>> 21 "EURO") 1 true)
>>
>> When I tried to use merge-with union I had an error which surprised me
>> since I thought records are also maps:
>>
>> user=> (merge-with union items products)
>> ClassCastException user.Product cannot be cast to java.util.Map$Entry
>> clojure.core/key (core.clj:1465)
>>
>> Although I will fight on, any tips from any of you that have done this
>> before would be greatly helped.
>>
>> Thanks
>>
>> ray
>>
>
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Re: another n00b defrecord combination question
(responses inline)
On Sat, 15 Dec 2012, mond wrote:
I have defined these types of records for modelling a simple shopping cart:
; An item in the cart
(defrecord Item [id name product quantity purchased])
; The product that relates to the item in the cart
(defrecord Product [id name description prices])
; A price definition
(defrecord Price [price tax-rate currency])
; Sample items
(def items [
(->Item 1 "Brogues" "P-123" 1 true)
(->Item 2 "Underpants" "P-345" 1 false)
(->Item 3 "Shirt" "P-678" 1 true)
])
; Sample products
(def products [
(->Product "P-123" "Brogues" "Men's Leather Slip on
Brogues" (->Price 93.00 21 "EURO"))
(->Product "P-345" "Underpants" "CK Y Fronts" (->Price
23.50 21 "EURO"))
(->Product "P-678" "Shirt" "Slim Fit White Vest Shirt"
(->Price 45.99 21 "EURO"))
(->Product "P-1231" "Table" "Coffee Table" (->Price 375 21
"EURO"))
(->Product "P-3451" "Chairs" "Set of Four(4) chairs"
(->Price 200 21 "EURO"))
(->Product "P-6781" "TableCloth" "Classic red and white
checks 2m x 2m" (->Price 17.99 21 "EURO"))
])
My requirement is to combine data from the two collections such that I can
show the detailed product information for any item, for example:
(->Item 3 "Shirt" "Slim Fit White Vest Shirt" (->Price 45.99 21
"EURO") 1 true)
When I tried to use merge-with union I had an error which surprised me
since I thought records are also maps:
user=> (merge-with union items products)
ClassCastException user.Product cannot be cast to java.util.Map$Entry
clojure.core/key (core.clj:1465)
It looks like your second response worked around it, but for anyone
following along: merge-with takes two or more maps, and uses the
function you pass to merge the values of common keys. So, the error is
caused because merge-with expects items and products to be maps (not
vectors of map-like things).
On Sat, 15 Dec 2012, mond wrote:
I think I am close to answering this myself (which is always nice!)
I have done the necessary joins with map and I can return a product
description
user=> (map (fn [item product] (= (:product item (:id product)))
(:description product)) items products)
("Men's Leather Slip on Brogues" "CK Y Fronts" "Slim Fit White Vest Shirt")
The (= (:product item (:id product))) here is being ignored.
It "works" because your example arrays happen to have the items and
products lined up properly (first three products match the items
in order):
(map (fn [item product]
(= (:product item (:id product))) ; the result of this comparison is
thrown away
(:description product) ; this is the value that is returned
) items products)
If you want to match things up, you might be better off creating maps
for each category of thing:
; (with items and products as you'd defined them before)
(def product->item (zipmap (map :product items) items))
;=> {"P-123" #user.Item{...}, "P-345" #user.Item{...}, ...}
(def id->product (zipmap (map :id products) products))
;=> {"P-123" #user.Product{...}, "P-345" #user.Product{...}, ...}
(def combined (merge-with union product->item id->product))
;=> {"P-123" #user.Product{... with :quantity and :purchased },
;"P-1231" #user.Product{... with no Item keys ...}, ...etc.
Or a purchased status for the matching item
user=> (map (fn [item product] (= (:product item (:id product)))
(:purchased item)) items products)
(true false true)
But I have my knickers in a twist when I want to get more than one
value out or a combination of values.
user=> (map (fn [item product] (= (:product item (:id product))) (:id item
:description product)) items products)
(user=> IllegalArgumentException Wrong number of args passed to keyword:
:id clojure.lang.Keyword.throwArity (Keyword.java:85)
So does anyone have the last bit of syntax to help me take back a list
of values from the inputs?
Other than the matching issue (the = form isn't being used -- see
above), the problem with what you've written is that you want a map,
rather than a list:
(map (fn [item product] {:id item :description product}) items products)
Or if you really want a list, you need to quote it:
(map (fn [item product] '(:id item :description product)) items products)
--
Best,
Ben
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Re: another n00b defrecord combination question
On Sat, 15 Dec 2012, Benjamin R. Haskell wrote: Or if you really want a list, you need to quote it: (map (fn [item product] '(:id item :description product)) items products) Oops, wrong. Rather, you would want clojure.core/list: (map (fn [item product] (list :id item :description product)) items products) -- Best, Ben -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Long response time after a clojure process was inactive for some time
On Thursday, December 13, 2012 8:21:09 PM UTC+1, Trastabuga wrote: > > A while ago I created a small web site based on Clojure. I noticed that > when there was no requests to the site for some period of time (a few > hours) it may take up to 20-30 seconds to process an incoming request. > I am wondering, what's the reason for this time lag after some period of > inactivity in a Clojure process? Is it Java specific? > > Sounds like the JVM process gets swapped out during the period of inactivity. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Confused about comp
...which should be also a lot faster :)
On Saturday, December 15, 2012 5:44:01 PM UTC+1, Armando Blancas wrote:
>
> (comp (partial apply str) (partial filter #{\a}))
>>
>
> Or, (comp join (partial filter #{\a}))
>
>
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Re: Confused about comp
Nonsense. Why would that be any faster? (join coll) is defined as (apply
str coll).
On Saturday, December 15, 2012 12:21:45 PM UTC-8, Marek Šrank wrote:
>
> ...which should be also a lot faster :)
>
> On Saturday, December 15, 2012 5:44:01 PM UTC+1, Armando Blancas wrote:
>>
>> (comp (partial apply str) (partial filter #{\a}))
>>>
>>
>> Or, (comp join (partial filter #{\a}))
>>
>>
>
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Re: another n00b defrecord combination question
Thanks for picking up the cudgels Ben!
To be honest I am struggling to repeat your advice in the REPL. In any
case, I decided to change the data structures in line with your advice and
put the IDs into maps rather than the records.
(defrecord Item [name product quantity purchased])
(defrecord Product [name description prices])
(defrecord Price [price tax currency])
(def items [ {:id 1 :item (->Item "Brogues" "P-123" 1 true)}
{:id 2 :item (->Item "Underpants" "P-345" 2 false)}
{:id 3 :item (->Item "Shirt" "P-678" 1 true)} ])
(def carts [ (->Cart "Birthday" (first items))
(->Cart "Xmas" (rest items)) ])
(def products [ {:id "P-1231" :product (->Product "Table" "Coffee Table"
(->Price 375 21 "EURO"))}
{:id "P-3451" :product (->Product "Chairs" "Set of Four(4)
chairs" (->Price 200 21 "EURO"))}
{:id "P-123" :product (->Product "Brogues" "Men's Leather
Slip on Brogues" (->Price 93.00 21 "EURO"))}
{:id "P-345" :product (->Product "Underpants" "CK Y Fronts"
(->Price 23.50 21 "EURO"))}
{:id "P-678" :product (->Product "Shirt" "Slim Fit White
Vest Shirt" (->Price 45.99 21 "EURO"))}
{:id "P-6781" :product (->Product "TableCloth" "Classic red
and white checks 2m x 2m" (->Price 17.99 21 "EURO"))} ])
Do you think the zipmap is still the way to go (to resolve the 'foreign
key' or could there be an easier way? I guess the fact that only items have
to zipmapped is one advantage.
Thanks for your support
ray
On Saturday, December 15, 2012 7:53:32 PM UTC+1, Benjamin R. Haskell wrote:
>
> On Sat, 15 Dec 2012, Benjamin R. Haskell wrote:
>
> > Or if you really want a list, you need to quote it:
> >
> > (map (fn [item product] '(:id item :description product)) items
> products)
>
> Oops, wrong. Rather, you would want clojure.core/list:
>
> (map (fn [item product] (list :id item :description product)) items
> products)
>
> --
> Best,
> Ben
>
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Clojure syntax coloring for wordpress blogs
Does anyone have a good method for syntax coloring clojure code snippets for a wordpress blog? I've recently started my new blog, and I'm posting clojure snippets, and would like for them to be syntax highlighted and indented properly. Nick Gonzalez -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: defrecord and overriding "empty"
Well here I am over a year later with the same problem. I'm curious, what was your solution for the time being? On Tuesday, September 27, 2011 1:06:37 PM UTC-5, David Nolen wrote: > > On Tue, Sep 27, 2011 at 1:54 PM, Nathan Sorenson > > wrote: > >> Should IPersistentCollection even be defining 'empty', if one of the >> language's key data types doesn't support it? I think it would be better to >> either pull 'empty' into it's own protocol so clojure.walk doesn't match on >> IPersistentCollection when walking a data structure with the false >> expectation that it can create an empty version, or rename 'empty' it to >> something that records can implement, like 'default.' > > > This is a fair point. ClojureScript fixes this by providing > IEmptyableCollection. > > David > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
JavaFX and Clojure
Hi, After some studies about JavaFX with Clojure, and bricks broke with my head, I wrote a sort of wrapper to work more easily with both. It's here : https://github.com/chrix75/javafx-clj You can play with JavaFX in your REPL and you have the macro with-javax and wit-javafx-let that let you write JavaFX code without managing the JavaFX runtime thread. I hope it can help. Chris -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
ClojureCLR binary download issue
Hi, Thought to bring up the recent ClojureCLR binary download issue: 1. The http://clojure.org/ homepage links ClojureCLR to the old Github repo. 2. The `Download` links on ClojureCLR repo have gone missing: https://github.com/clojure/clojure-clr #2 may have to do with Github's recent announcement to drop the Downloads feature. The old URLs continue to work for download, but it may not be possible for first timers to know them. I'd suggest to put up the downloads at the Clojure website's Download page: http://clojure.org/downloads [Off-topic] -- I noticed this when I wanted to confirm the binaries because I was running into the following error: FATAL UNHANDLED EXCEPTION: System.MissingFieldException: Field 'clojure.lang.RT.OutVar' not found. Shantanu -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: another n00b defrecord combination question
On Sat, 15 Dec 2012, mond wrote:
Thanks for picking up the cudgels Ben!
Ha. It's nice to have reached a point where I feel at-all confident
with any of this... happy to help.
To be honest I am struggling to repeat your advice in the REPL. In
any case, I decided to change the data structures in line with your
advice and put the IDs into maps rather than the records.
(defrecord Item [name product quantity purchased])
(defrecord Product [name description prices])
(defrecord Price [price tax currency])
(def items [ {:id 1 :item (->Item "Brogues" "P-123" 1 true)}
{:id 2 :item (->Item "Underpants" "P-345" 2 false)}
{:id 3 :item (->Item "Shirt" "P-678" 1 true)} ])
(def carts [ (->Cart "Birthday" (first items))
(->Cart "Xmas" (rest items)) ])
(def products [ {:id "P-1231" :product (->Product "Table" "Coffee Table" (->Price 375 21
"EURO"))}
{:id "P-3451" :product (->Product "Chairs" "Set of Four(4) chairs"
(->Price 200 21 "EURO"))}
{:id "P-123" :product (->Product "Brogues" "Men's Leather Slip on Brogues"
(->Price 93.00 21 "EURO"))}
{:id "P-345" :product (->Product "Underpants" "CK Y Fronts" (->Price
23.50 21 "EURO"))}
{:id "P-678" :product (->Product "Shirt" "Slim Fit White Vest Shirt"
(->Price 45.99 21 "EURO"))}
{:id "P-6781" :product (->Product "TableCloth" "Classic red and white checks 2m x
2m" (->Price 17.99 21 "EURO"))} ])
Do you think the zipmap is still the way to go (to resolve the
'foreign key' or could there be an easier way? I guess the fact that
only items have to zipmapped is one advantage.
It seems like items and products should still have an :id property, so I
don't think you need to detach the ID from its entity. The zipmap'ed
version is useful as an index, not really as its own structure. So, it
ends up as just a single map (not an array of maps) with ID's as keys,
and the corresponding entity as the value:
(defrecord Item [id name product quantity purchased])
(defrecord Product [id name description prices])
(defrecord Price [price tax currency])
(def items [ (->Item 1 "Brogues" "P-123" 1 true)
(->Item 2 "Underpants" "P-345" 2 false)
(->Item 3 "Shirt" "P-678" 1 true) ])
(def products [ (->Product "P-1231" "Table" "Coffee Table" (->Price 375 21
"EURO"))
(->Product "P-3451" "Chairs" "Set of Four(4) chairs" (->Price 200 21
"EURO"))
(->Product "P-123" "Brogues" "Men's Leather Slip on Brogues" (->Price
93.00 21 "EURO"))
(->Product "P-345" "Underpants" "CK Y Fronts" (->Price 23.50 21
"EURO"))
(->Product "P-678" "Shirt" "Slim Fit White Vest Shirt" (->Price 45.99 21
"EURO"))
(->Product "P-6781" "TableCloth" "Classic red and white checks 2m x 2m"
(->Price 17.99 21 "EURO")) ])
; two useful indexes(/indices?):
(def prod->item
"An index from Product ID to an Item"
(zipmap (map :product items) items))
(def id->product
"An index from Product ID to a Product"
(zipmap (map :id products) products))
; Then you can use that to get the products joined with their items:
(defn product-with-item
"Find the Item info and merge it into the product, without overwriting :id"
[product]
(merge-with (fn [a b] a) product (prod->item (:id product
; example usage:
(product-with-item (id->product "P-345"))
;=> #user.Product{:id 2,
; :name "Underpants",
; :description "CK Y Fronts",
; :prices #user.Price{:price 23.5, :tax 21, :currency "EURO"},
; :purchased false,
; :quantity 2,
; :product "P-345"}
(def joined-products (map product-with-item products))
;=> A list of all the products joined with their items
--
Best,
Ben
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How to structure a Clojure day for noobs?
In a couple of months, I'll have a whole day of teaching Clojure to ten of my colleagues. They are experienced Java programmers, but otherwise Clojure rookies. Any tips on how to structure such a workshop day? -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to structure a Clojure day for noobs?
There is one advice I can give from my teaching experience: don't overwhelm them with data. A person can assimilate only so many concepts in a day, no matter whether the workshop lasts two or eight hours. Pick a few key concepts and spend much time on approaching each concept from many different angles. Have everyone involved with exercises. Make layered exercises: each of those ten people is going to progress at their own pace. Allow enough time for the slowest ones to get through the basic part of the exercise, but have a stash of extra stuff for the quicker ones, so they don't get bored and frustrated while waiting on others. On Saturday, December 15, 2012 11:13:21 PM UTC+1, ulsa wrote: > > In a couple of months, I'll have a whole day of teaching Clojure to ten of > my colleagues. They are experienced Java programmers, but otherwise Clojure > rookies. Any tips on how to structure such a workshop day? > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: defrecord and overriding "empty"
In core.logic we have a protocol called IUninitialized that you can implement. That works well enough for our needs. On Saturday, December 15, 2012, Joseph Smith wrote: > Well here I am over a year later with the same problem. I'm curious, what > was your solution for the time being? > > On Tuesday, September 27, 2011 1:06:37 PM UTC-5, David Nolen wrote: >> >> On Tue, Sep 27, 2011 at 1:54 PM, Nathan Sorenson wrote: >> >>> Should IPersistentCollection even be defining 'empty', if one of the >>> language's key data types doesn't support it? I think it would be better to >>> either pull 'empty' into it's own protocol so clojure.walk doesn't match on >>> IPersistentCollection when walking a data structure with the false >>> expectation that it can create an empty version, or rename 'empty' it to >>> something that records can implement, like 'default.' >> >> >> This is a fair point. ClojureScript fixes this by providing >> IEmptyableCollection. >> >> David >> > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to > clojure@googlegroups.com '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 '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 post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Clojure syntax coloring for wordpress blogs
On Sat, Dec 15, 2012 at 11:02 PM, Nick Gonzalez wrote: > Does anyone have a good method for syntax coloring clojure code snippets > for a wordpress blog? I've recently started my new blog, and I'm posting > clojure snippets, and would like for them to be syntax highlighted and > indented properly. Highlight.js maybe? http://softwaremaniacs.org/soft/highlight/en/ There is a plugin for wordpress: http://wordpress.org/extend/plugins/wp-highlightjs/ -- Alexander -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ANN: lein-clr 0.2.0 for ClojureCLR
Cool. I'm just seeing this now. I actually spent some time a while back getting a very simple nleiningen working in ClojureCLR. I had nuget downloads working and also the ability to AOT compile namespaces and merge them into a single DLL. It's not fully ready for prime time yet though, in part because it depends on some custom modifications to the ClojureCLR compiler. In the long run, I'd like to work together on getting a full lein clr implementation working. I'd love to discuss further if you have time. By the way Dave - speaking of custom modifications to ClojureCLR, this past week, my colleague and I merged your latest master with our changes (https://github.com/kocubinski/clojure-clr). I hope to put together some formal patches soon which clearly identify the changes I'm suggesting for the main compiler. While we're at it, a few other things I'm working on or have working in clojure-clr are: tools.logging and pinvoke (https://github.com/aaronc/ClojureClrEx) - logging is mostly ported but with only one backend working, pinvoke/dllimport works great, but no docs a nice interface to WPF (https://github.com/aaronc/ClojureWpf) - pretty stable, but again no docs yet nrepl (https://github.com/aaronc/tools.nrepl/tree/clr) - needs quite a bit more work Unfortunately, I haven't been too diligent with documentation, but I hope to correct that as time allows. On Sunday, November 18, 2012 4:03:03 PM UTC-5, Shantanu Kumar wrote: > > Hi, > > I pushed lein-clr 0.2.0 https://github.com/kumarshantanu/lein-clr JARs to > Clojars a little while ago. The focus of this release is to > > 1. add dependency support (via NuGet/wget/curl, Leiningen :dependencies) > 2. lower the bar to get started with ClojureCLR (with automated download > of ClojureCLR) > 3. remove the need to call `assembly-load-from` in code > > The changelog and TODO are here: > https://github.com/kumarshantanu/lein-clr/blob/master/CHANGES.md > > I hope this release is usable enough to start building ClojureCLR apps and > libraries with it. This is an early project and can certainly use feedback > and contribution. Please let me know what you think. > > Shantanu > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: JavaFX and Clojure
I had a test to show how it work. Le samedi 15 décembre 2012 22:10:50 UTC+1, Christian Sperandio a écrit : > > Hi, > > After some studies about JavaFX with Clojure, and bricks broke with my > head, I wrote a sort of wrapper to work more easily with both. > It's here : https://github.com/chrix75/javafx-clj > > You can play with JavaFX in your REPL and you have the macro with-javax > and wit-javafx-let that let you write JavaFX code without managing the > JavaFX runtime thread. > > I hope it can help. > > Chris > > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Confused about comp
Hi Mark and Baishampayan, I can see what difference it makes, but I can't get a handle on the rationale. For instance, I found this discussion: http://stackoverflow.com/questions/1257028/why-should-i-use-apply-in-clojure It starts with a quote from a Rich Hickey blog post, as follows. > A big difference between Clojure and CL is that Clojure is a Lisp-1, so > funcall is not needed, and apply is only used to apply a function to a > runtime-defined collection of arguments. So, (apply f [i]) can be written > (f i). But it can't, can it? In this context (apply f [i]) with respect to (f i)* apply *has *side-effects*! Further on in the discussion, this example is given. (+ [1 2 3 4 5]) which does not add the numbers. But > (apply + [1 2 3 4 5]) does. There seem to be inscrutabilities in the way arguments are handled in Clojure. The reason this is so troubling is that going the other way is so transparent. That is, a String is automatically converted to a sequence as required. > On Saturday, 15 December 2012 20:39:04 UTC+10, Marko Topolnik wrote: > > > I'm still puzzled about this though, because (doc str) says that with one >> argument x, str returns x.toString(). What it returns is >> "clojure.lang.LazySeq@fe1" >> >> So it seems to be returning a lazy sequence. Why is the function not >> simply applied? Other functions are "applied" simple by expressing their >> form. >> > > No, it is returning exactly as advertised, the result of calling > #toString() on an instance of LazySeq. > > The difference between (str a-lazy-seq) and (apply str a-lazy-seq) is that > in the first case str is called with one argument, the lazy seq, and in the > second case with, say 5 arguments, for a lazy seq of length 5. The lazy seq > is *spliced* into separate arguments to str. > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Confused about comp
On Sat, Dec 15, 2012 at 3:58 PM, Peter West wrote: > But it can't, can it? In this context (apply f [i]) with respect to (f i)* > apply *has *side-effects*! > This doesn't really make any sense. There are no side effects here. I think maybe you just don't understand what apply does. Let me try to explain it a different way. Some functions, like +, are designed to take 1, 2, 3, 4, 5, or any number of arguments. You can write: (+ 1 2) (+ 1 2 3) (+ 1 2 3 4) (+ 1 2 3 4 5) etc. The "contract" for + is that it takes any number of numbers as an input. One thing + can't do is add up the numbers in a list, at least not when written in this way: (+ [1 2 3 4 5]) This doesn't make any sense, because + is expecting numbers, and we passed it a vector. It might seem somewhat ironic that + can't take a list of numbers. Obviously, it knows how to add a series of numbers, it just expects them to be one after each other, as arguments, not all bundled up in a list. If only we could delete those brackets around [1 2 3 4 5]... If only we had some sort of "adapter" that could take a list/vector of items, and pass them in as multiple arguments to a function that was designed to take multiple arguments... That is what apply does. (apply + [1 2 3 4 5]) turns into (+ 1 2 3 4 5) Similarly, (apply str [\a \b \c \d]) turns into (str \a \b \c \d) -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ClojureCLR binary download issue
On Saturday, December 15, 2012 3:27:26 PM UTC-6, Shantanu Kumar wrote: > > Hi, > > Thought to bring up the recent ClojureCLR binary download issue: > > 1. The http://clojure.org/ homepage links ClojureCLR to the old Github > repo. > Whoever maintains the homepage will have to fix this. Note: there are two links to ClojureCLR on the home page. The one in the first paragraph is the one that is broken. The one in the list further down the page is okay. > 2. The `Download` links on ClojureCLR repo have gone missing: > https://github.com/clojure/clojure-clr > > #2 may have to do with Github's recent announcement to drop the Downloads > feature. The old URLs continue to work for download, but it may not be > possible for first timers to know them. I'd suggest to put up the downloads > at the Clojure website's Download page: http://clojure.org/downloads > Thanks for the notice. I had missed it. I don't have access to the clojure.org downloads page. I'll seek an alternative for delivering the binaries. > [Off-topic] -- I noticed this when I wanted to confirm the binaries > because I was running into the following error: > > FATAL UNHANDLED EXCEPTION: System.MissingFieldException: Field > 'clojure.lang.RT.OutVar' not found. > > Shantanu > Did this error occur from one of the downloaded binaries? Can you confirm which version? -David -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Who's using Clojure?
Surely because Fogus was in process of upgrading it :D go check it out now! http://dev.clojure.org/display/community/Clojure+Success+Stories On Friday, December 14, 2012 3:34:23 PM UTC+1, Jeff Heon wrote: > > I'm asked to log in now to access this page. > > On Thursday, April 28, 2011 11:03:53 PM UTC-4, Christopher Redinger wrote: >> >> We've got a good start to the list going >> >> http://dev.clojure.org/display/community/Clojure+Success+Stories >> >> Any more we should get listed? >> > -- 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
Using Google Template Library with ClojureScript App
Hi, Since it can not be included as a dependency, how does one integrate the Google Closure Template library into a Leiningen-based Clojure/ClojureScript application? Ideally, I'd like for the templates to be auto-compiled as is done for *.cljs files via the cljsbuild plugin. Thanks. -Ari -- 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
Running a clojure script
Let's say I have a file "hello.clj" that simply contains the line: (println "hello, world") What's the simplest way to run this clojure file? I'm looking for something simpler than setting up a lein project. Is there something along the lines of: java clojure.jar hello.clj that would actually work? -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Running a clojure script
Yep. java -jar clojure.jar hello.clj Should do the trick. Alternatively, java -cp clojure.jar clojure.main hello.clj Will also work if you need to control the classpath more. Dave On Saturday, December 15, 2012, Mark Engelberg wrote: > Let's say I have a file "hello.clj" that simply contains the line: > (println "hello, world") > > What's the simplest way to run this clojure file? I'm looking for > something simpler than setting up a lein project. Is there something along > the lines of: > java clojure.jar hello.clj > that would actually work? > > -- > 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 '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 '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 post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Clojure syntax coloring for wordpress blogs
I use WP-Syntax[1] plugin which uses GeSHi , which seems be working fine for me on my blog [2] [1] http://wordpress.org/extend/plugins/wp-syntax/ [2] http://www.vijaykiran.com/2012/01/31/web-application-development-with-clojure-part-3/ On Saturday, December 15, 2012 10:02:11 PM UTC+1, Nick Gonzalez wrote: > > Does anyone have a good method for syntax coloring clojure code snippets > for a wordpress blog? I've recently started my new blog, and I'm posting > clojure snippets, and would like for them to be syntax highlighted and > indented properly. > > Nick Gonzalez > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Running a clojure script
Thanks. I think that used to be on the Getting Started page, but now the page is just links to info about how to get up and running with IDEs, so I had trouble finding it. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ClojureCLR binary download issue
On Sunday, 16 December 2012 06:01:54 UTC+5:30, dmiller wrote: > > [Off-topic] -- I noticed this when I wanted to confirm the binaries >> because I was running into the following error: >> >> FATAL UNHANDLED EXCEPTION: System.MissingFieldException: Field >> 'clojure.lang.RT.OutVar' not found. >> >> Shantanu >> > > Did this error occur from one of the downloaded binaries? Can you confirm > which version? > This is the URL I downloaded ClojureCLR from, which still works even though the Downloads tab is not visible on Github anymore: https://github.com/downloads/clojure/clojure-clr/clojure-clr-1.4.0-Debug-4.0.zip The error is happening on Linux running Mono 2.10 for me. There is no error on Windows (both .NET and Mono.) Shantanu -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Running a clojure script
Why are you using puzzler's account and what did you did to him?! On Saturday, December 15, 2012 7:28:56 PM UTC-8, puzzler wrote: > > Thanks. I think that used to be on the Getting Started page, but now the > page is just links to info about how to get up and running with IDEs, so I > had trouble finding it. > > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
ClojureCLR errors on Mono Linux
Hi, I noticed the following ClojureCLR errors using Mono 2.10 on Ubuntu 12.04 (they do not happen on Windows using either .NET or Mono): 1. when running Clojure.Compile.exe: Exception: System.MissingFieldException: Field 'clojure.lang.RT.OutVar' not found. 2. when using Clojure.Main.exe: Exception: System.TypeLoadException: Could not load type 'Clojure.CljMain' from assembly 'Clojure.Main, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. It would be great if anybody can let me know what's going on. Shantanu -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ClojureCLR binary download issue
On Sunday, 16 December 2012 09:20:31 UTC+5:30, Shantanu Kumar wrote: > > On Sunday, 16 December 2012 06:01:54 UTC+5:30, dmiller wrote: > >> >> [Off-topic] -- I noticed this when I wanted to confirm the binaries >>> because I was running into the following error: >>> >>> FATAL UNHANDLED EXCEPTION: System.MissingFieldException: Field >>> 'clojure.lang.RT.OutVar' not found. >>> >>> Shantanu >>> >> >> Did this error occur from one of the downloaded binaries? Can you confirm >> which version? >> > > This is the URL I downloaded ClojureCLR from, which still works even > though the Downloads tab is not visible on Github anymore: > > > https://github.com/downloads/clojure/clojure-clr/clojure-clr-1.4.0-Debug-4.0.zip > > The error is happening on Linux running Mono 2.10 for me. There is no > error on Windows (both .NET and Mono.) > I posted a new thread about the errors here: https://groups.google.com/forum/?fromgroups=#!topic/clojure/f8XFoiwkloQ Shantanu -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ClojureCLR errors on Mono Linux
This is when using ClojureCLR 1.4.0 Debug-4.0 version. Shantanu On Sunday, 16 December 2012 09:45:21 UTC+5:30, Shantanu Kumar wrote: > > Hi, > > I noticed the following ClojureCLR errors using Mono 2.10 on Ubuntu 12.04 > (they do not happen on Windows using either .NET or Mono): > > 1. when running Clojure.Compile.exe: > > Exception: System.MissingFieldException: Field 'clojure.lang.RT.OutVar' > not found. > > 2. when using Clojure.Main.exe: > > Exception: System.TypeLoadException: Could not load type 'Clojure.CljMain' > from assembly 'Clojure.Main, Version=1.0.0.0, Culture=neutral, > PublicKeyToken=null'. > > It would be great if anybody can let me know what's going on. > > Shantanu > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Running a clojure script
Hmmm, looks like googlegroups is stripping out my email address and replacing it with one of my google account handles. Probably depends on what method you are using to view the group messages. I'm not going out of my way to be pseudonymous, it just seems to be a feature of the group. On Sat, Dec 15, 2012 at 8:12 PM, Armando Blancas wrote: > Why are you using puzzler's account and what did you did to him?! > -- 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
Belgian Clojure base meetup?
If you are from Belgium, Don't get too excited - yet - . I've been wondering about organising a small meetup somewhere next semester. (I peeked at our northern neighbours: http://www.meetup.com/The-Amsterdam-Clojure-Meetup-Group/events/88386392/) Though, I have no idea at all how many people here in Belgium are actively using clojure and would be interested in such a thing. Its not a plan, just being curious and checking whether it would be worth the time. So if you are from Belgium, give me a shout! -- 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
