On 10.11.2013 14:03, Dave Tenny wrote:
I don't understand why these things aren't equal.
user= (= (list java.lang.String) (list (class abc)))
true
user= (= '(java.lang.String) (list (class abc)))
false
user= (type '(java.lang.String))
clojure.lang.PersistentList
On 07.09.2013 11:24, Josh Kamau wrote:
Please allow me to hijack the thread and ask:
Does Counterclockwise allow slurping and barfing? like in emacs ?
Yes. See
http://code.google.com/p/counterclockwise/wiki/EditorKeyBindingsFeatures
--
Timo
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You received this message because you
On 07.09.2013 14:02, Josh Kamau wrote:
I am unable to use slurp . I am using latest stable version.
does *Ctrl+) S* mean pressing Ctrl+Shift+)+S together ? Shift so that
i pick ) and not 9 and so that S is in caps.
) is above 0 on my keyboard, so I can trigger the Slurp Right action
like
On 18.08.2013 16:51, Hussein B. wrote:
Would you please help me transforming this imperative code into
functional one?
The code is a typical snippet in imperative style. A lot of mutations
that I don't even know how to start morphing it to Clojure.
class Container {
MapString,
On 19.08.2013 20:27, Timo Mihaljov wrote:
This example may be to artificial to be translated into Clojure. What
use is it to store strings in a tree keyed by the string's characters?
If you know the path to the string, you already know the string itself,
and you don't need the tree at all
On 17.08.2013 08:40, David Chelimsky wrote:
Which led me to this:
(defn to-consolidated-map [parts]
(apply merge-with + (map (partial apply hash-map) parts)))
This is exactly what I came up with after reading your first message.
Apparently Jay Fields took the same approach. I think it's
On 07.08.2013 10:58, Tilak Thapa wrote:
(defn get-data
[ attrs]
(let [grps data]
(if (empty? attrs)
grps
(map #(select-keys % attrs) grps
(filter #(= (% :id) 7) (get-data :id :b))
Why above expression works but same expression wrapped as function
(below) does
On 25.07.2013 11:19, gixxi wrote:
Consider the following record definition, a respective record instance
as well as a sorted tree set with a custom comparator sorting first the
:visited property and the by the :dist property of the record.
(defrecord RDistance
[node dist visited])
(def
On 26.07.2013 00:34, Brian Craft wrote:
Is there a better way to do this, making a map of certain keys from a
list of maps?
(apply hash-map (mapcat (fn [x] [(x :a) (x :b)]) [{:a blah :b ack}
{:a red :b blue}]))
{red blue, blah ack}
Here's another way:
(let [xs [{:a blah, :b ack} {:a
On 10.05.2013 14:04, Colin Yates wrote:
2) to provide a 'get-ds' accessor which returns a new instance and rely
on passing that service along to every function that needs it?
For what it's worth, some people in the OO community, most notably Nat
Pryce and Steve Freeman of Growing
On 10.05.2013 14:44, John D. Hume wrote:
Assume a queue is your only state and `add` and `clear` are your private
fns that take a queue as first argument.
(defn new-scheduler []
(let [queue (...)]
{:add (partial add queue)
:clear (partial clear queue)}))
There are several
On 04.05.2013 12:16, Korny Sietsma wrote:
What's the idiomatic way to avoid this? The options seem to be either
to use
(doall (map parse-record records))
or (mapv parse-record records)
Is either of these better? The latter is simpler, the former (to me)
expresses that you are
On 04.05.2013 13:01, Korny Sietsma wrote:
Thanks - I thought doall was probably better than mapv.
Incidentally, doseq won't work - if the 5th result throws an exception
during parsing, results 1-4 will still be saved, whereas I want the
whole operation to abort without saving anything.
Ah
On 29.01.2013 16:32, Jay Fields wrote:
On Tue, Jan 29, 2013 at 9:28 AM, Feng Shen shen...@gmail.com wrote:
I have programming Clojure for almost 2 years, for a living.
This is probably an important part of what answer the OP is looking
for. When I was doing Clojure for about 10% of my job
On Thursday, December 13, 2012 11:43:48 PM UTC+2, puzzler wrote:
On Thu, Dec 13, 2012 at 1:31 PM, Timo Mihaljov
ti...@mihaljov.infojavascript:
wrote:
(ns example.patron
The patron doesn't have an artistic vision (that's the artist's job),
nor does it know how to talk to a graphics
On 12.12.2012 02:16, Mark Engelberg wrote:
Hi Mark,
Here's my take on the problem. I hope you can adapt it to your situation.
(ns example.canvas
A canvas is an abstract interface to a graphics API. The canvas
namespace does not build new functionality on top of the APIs, that's a
job for
On 24.09.2012 13:04, Mond Ray wrote:
user= wish-lists
[{:name WL1, :items [{:name Item 1, :cost 20.0} {:name Item 2,
:cost 40.0}]} {:name WL2, :items [{:name Wiggle 1, :cost 20.0}
{:name Wiggle 2, :cost 40.0} [:name Item 3 :cost 10.0]]}]
user= (assoc-in wish-lists [:name WL1] [:name WL1
On 25.09.2012 23:58, Alex Dowad wrote:
Does anyone know what's going on here?
user= (let [a 1] (eval 'a))
1
user= (ns another-ns)
nil
another-ns= (let [a 1] (eval 'a))
CompilerException java.lang.RuntimeException: Unable to resolve symbol:
a in this context, compiling:(NO_SOURCE_PATH:41)
On 06.09.2012 20:41, jamieorc wrote:
Hey all, I'm looking for a lightweight way to strip html from a long
String of text and leave just the text. I've come across JSoup, but at
over 300kb for the lib, not quite lightweight.
Suggestions?
I've found Jericho HTML Parser to be fast, robust,
On 03/15/2012 09:15 PM, Nic Long wrote:
So I guess I'm asking whether anyone can recommend some good primers
on data structures, both as they relate to Clojure, but also how they
work in the fundamentals - e.g. what exactly is the classic model of
an 'array' and how does it work, etc. I have
As I understand the problem in your example, you do have a definition
for what an Insurable is, but it's implicit: there's no way to check
whether an object is insurable and thus no way to check which parts of
the code break when the notion of being Insurable changes. Luckily
Clojure provides us
On 12/14/2011 06:37 PM, Timothy Washington wrote:
1) The first is being able to pass many tasks to lein. So I would prefer
A. instead of B.
* A) lein clean deps
* B) lein clean lein deps
You can chain commands by separating them with a comma:
lein clean, deps
--
Timo
--
You
On Thu, May 05, 2011 at 05:40:02AM -0700, Steffen wrote:
Hello,
I'm trying to come up with a way to recreate a directory hierarchy. Entries
within zip archives are just flat strings like top/level/file1, but I would
like to operate on them hierarchically. So my problem could be stated as:
On Tue, Feb 08, 2011 at 09:01:38AM -0500, Stuart Halloway wrote:
Please let us know when you get a misleading error message from a
macroexpansion, so we can make it better. Or contribute a patch along the
lines
of [2].
Here's another error message that really threw me off for a while.
I
On Tue, Feb 08, 2011 at 09:01:38AM -0500, Stuart Halloway wrote:
Please let us know when you get a misleading error message from a
macroexpansion, so we can make it better. Or contribute a patch along the
lines
of [2].
Here's a misleading lack of an error message:
(defn foo [x]
On Tue, Oct 26, 2010 at 02:15:21PM -0400, Andrew Gwozdziewycz wrote:
Areas likely to include gobbledegook:
[...]
2. links (internal. for external links, just use fully qualified URI)
Internal links could be easily handled by trying to resolve all `code
blocks` with ns-resolve in the namespace
On Mon, Aug 16, 2010 at 03:43:11AM -0700, Mike Anderson wrote:
2. User interface comes last, which is good in general but makes it a
royal pain to pass notifications back to the UI. In Java I would
simply have e.g. units.clj call a simple notification function in
interface.clj, in Clojure I
When defining a map literal, is it possible to reference the map that is
being defined?
I have some code that looks like this:
(let [radius 20
diameter (* 2 radius)
circumference (* pi diameter)]
{:radius radius
:diameter diameter
:circumference
On Mon, Aug 31, 2009 at 09:14:38AM -0400, Chas Emerick wrote:
You could define your own let-like construct for this:
(defmacro letmap [[m kvs mkvs] body]
(if m
`(let [~m {}
~@(mapcat (fn [[k v]] `(~m (assoc ~m ~k ~v))) kvs)]
(letmap ~mkvs ~...@body))
When clojure.contrib.test-is/run-tests is given an invalid argument, it
throws a NullPointerException:
user= (use 'clojure.contrib.test-is)
nil
user= (run-tests 'asdf)
java.lang.RuntimeException: java.lang.NullPointerException
(NO_SOURCE_FILE:0)
The issue seems harmless in a simple case like
Timo Mihaljov wrote:
I'm wondering about how to change a data structure without breaking the
API used to access it. For example, let's assume that I have a library
for dealing with records of people and I'm storing them in structs.
(defstruct person :name)
The users of my library
Laurent PETIT wrote:
While interesting, this approach seems to me limited to simple cases :
* limited in possibilities: you are not able to directly use values of
other fields. So in more complex cases, you won't be able to combine
calculated values without code repetition or prepraration
Laurent PETIT wrote:
What do others think about these 2 above statements ?
The standard OO approach to information hiding would be private fields
and accessor methods. Any suggestions for the One True Clojure Pattern
that addresses the same problem?
I think accessor
Hi,
I'm wondering about how to change a data structure without breaking the
API used to access it. For example, let's assume that I have a library
for dealing with records of people and I'm storing them in structs.
(defstruct person :name)
The users of my library access the data stored
I'm trying to use Clojure to call a library via JNI. Here's a working
piece of Java code that I'm trying to convert to Clojure:
import libfoo.Foo; // A GlueGen-generated wrapper
class Test {
static {
System.loadLibrary(foo); // The original library
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