Hi,
This may be a question without hope, but I'm thinking that asking
never hurts. So here goes:
The closest thing to keyword arguments that I have found is
destructuring with a map:
(defn myfun [ {:keys [arg1 arg2 arg3]
:or {arg1 default-value} :as args}]
...)
When I
Sadly, there is no improvement. I've made a minimal project to
demonstrate. Literally
- lein new tdrift
- modify project.clj
- add migration-config.clj
- add appropriate migration directory
- lein deps
- lein create-migration
I've put it up on github (https://github.com/ejackson/tdrift).
My guess would be a clojure version mismatch, based on the stacktrace.
Have you tried changing your project to use clojure 1.2.1?
- Chris
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Bingo! Thanks for that, version 1.3.0 incompatibility it is.
On 27/11/2011 13:41, Chris Perkins wrote:
My guess would be a clojure version mismatch, based on the
stacktrace. Have you tried changing your project to use clojure
1.2.1?
- Chris
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I just sent you a pull request to fix the Clojure 1.3 incompatibility.
Also, you may want to use the current-version and update-version
functions in drift-db.migrate instead of your own home grown
functions. Though you would have to create your own initialize
function to initialize the drift-db
You can use the :pre and :post assertions on functions. Something
like the following would do what you are asking:
(defn myfun
[ {:keys [arg1 arg2 arg3] :or {arg1 default-value} :as args}]
{:pre [(every? #{:arg1 :arg2 :arg3} (keys args))]}
(println arg1 arg2 arg3 args: args))
Also,
Is there any way in Leiningen to add a dependency on the JDK's tools.jar?
Apparently it is possible with maven [1]
I was thinking of porting my liverepl[2] utility over to leiningen to make
it a bit easier to install, and easier to run without scripts, it uses the
JDK's Attach API from tools.jar
On Sun, Nov 27, 2011 at 10:47 AM, David Powell djpow...@djpowell.net wrote:
Is there any way in Leiningen to add a dependency on the JDK's tools.jar?
Apparently it is possible with maven [1]
I was thinking of porting my liverepl[2] utility over to leiningen to make
it a bit easier to install,
For a project I'm working on, I wanted some variants of merge-with and
deep-merge-with that would also provide information about the keys
where collisions were occurring. I have (based on minimal testing) a
working implementation, but it feels like there should be a simpler
way to do this - I
On Nov 27, 8:43 am, Mark Rathwell mark.rathw...@gmail.com wrote:
Also, another way to take keyword arguments is:
(defn foo [ opts]
(let [opts (apply hash-map opts)]
(println opts)))
This is what already happens internally with the {:keys ...}
notation. You can actually be rather more
Yeah, laziness on my part, I was just trying to show that everything
after '' comes in as a list, and you can be creative if you need to
be. I use this on occasion for macros with multiple different types
of optional arguments.
On Sun, Nov 27, 2011 at 6:45 PM, Alan Malloy a...@malloys.org wrote:
Thank you very much, it works!
The correct script is:
resolver:AttributeDefinition id=cljattr xsi:type=Script
language=Clojure xmlns=urn:mace:shibboleth:2.0:resolver:ad
resolver:AttributeEncoder xsi:type=SAML1String
xmlns=urn:mace:shibboleth:2.0:attribute:encoder
I am learning Clojure and I use the CLR version. But I can not find a
book about Clojure CLR, just for Clojure and java.
I want someone give me suggestions about the book or issues of
Clojure CLR.
Thanks a lot.
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On Nov 24, 2011, at 12:32 AM, Sean Corfield wrote:
@lloyda2 posted on Twitter: (reduce 'and '(false true)) = true ...Huh?
I must admit, it looked odd to me... but I realized (after some REPL
experimentation) this seems to be equivalent to ('some-symbol
:some-key :some-default)
I saw the
Hello
I've just released the first RC1 of my first Clojure toy project[1].
This is basically old style put tags in HTML and process such tags in
your code. I copied the idea from html-template[2].
Because this is my first Clojure coding effort, there might be
mistakes. Any comment and
On Thursday, November 17, 2011 5:09:49 PM UTC+1, tbc++ wrote:
I also felt that sticking with the official Java implementation of
Clojure would be more practical. It would certainly be fun to put Clojure
on PyPy, though.
There is one insanely off-the-wall idea I've been thinking about
'prop-lookup'++.
First thing that really tricked me up with ClojureScript is
(goog.net.XhrIo/send uri #(.getResponseJson (.target %)))
blowing up in my face as it isn't using getResponseJson() but rather
returning the function. Ended up using (.getResponseJson (...) nil) to work
around it.
Hi,
I have the following code that I'm trying to use to split a sequence
of strings into files of approx. x-size
(defn split-file
([path strs split-size]
(loop [ss (seq strs), part 0]
(when-let [more (split-file path ss split-size part)]
(recur more (inc part)
([path
As Mark said you can avoid the graph issue with tabling. core.logic has
tabling. If you look at the tabling section here -
https://github.com/clojure/core.logic, you should see something related to
your problem.
While defrel/facts are neat - they are really intended for people who don't
already
Thank you very much, Tassilo!
Are Graph and Vertex classes from the public API?
On 24 ноя, 13:02, Tassilo Horn tass...@member.fsf.org wrote:
ru soro...@oogis.ru writes:
Can anybody point out good (idiomatic) examples of using protocols for
extending functionality of existing classes?
By examining to-stream
https://github.com/clojure/core.logic/blob/master/src/main/clojure/clojure/core/logic.clj#L1413and
extend-rel
https://github.com/clojure/core.logic/blob/master/src/main/clojure/clojure/core/logic.clj#L1527you
should be able to see how to turn any Clojure sequence into a
Thank you very much, Tassilo!
Are Graph and Vertex classes from the public API?
On 24 ноя, 12:02, Tassilo Horn tass...@member.fsf.org wrote:
ru soro...@oogis.ru writes:
Can anybody point out good (idiomatic) examples of using protocols for
extending functionality of existing classes?
No that doesn't make any sense, but I (think I) know what is going on
there.
(:a 1 2) === (get 1 :a 2)
Jong-won
On Nov 25, 1:35 pm, jaime xiejianm...@gmail.com wrote:
But we still don't know why it behaves like this and for what
reason. does (:a 1 2) returns 2 make any sense??
--
You
I'd expect the same, but in the code (https://github.com/clojure/
clojure/blob/master/src/jvm/clojure/lang/RT.java)
get and getFrom do not raise any error.
On Nov 24, 6:30 pm, Sean Corfield seancorfi...@gmail.com wrote:
(:a 1 2) yields 2 which surprises me a bit... I'd expect an error
because
Instead of typing java -cp clojure.jar clojure.main on Cygwin/
console to run some Clojure Script, Is it possible to make a GUI which
should show us REPL as myREPL=. There we should be able to write
commands and execute.
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Hi,
I've a head holding problem that I believe is a bug in clojure 1.3. I
wrote the following function to split a a lazy seq of strings across
files of x size:
(defn split-file
([path strs size]
(trampoline split-file path (seq strs) size 0))
([path strs size part]
(with-open [f
Hi,
I've just installed Clojure 1.3 on a MBP, OSX 10.6.8.
After unzipping the download, I'm left with a directory with a few .jar
files and two subdirectories.
(I'm also a Java newb too)
How do I run Clojure?
Thanks
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When I launch Clojure, the following is displayed
java -cp clojure.jar clojure.main
Exception in thread main java.lang.NoClassDefFoundError: clojure/main
Caused by: java.lang.ClassNotFoundException: clojure.main
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at
On Sat, Nov 26, 2011 at 10:15 PM, Clojure NewB cappy2...@gmail.com wrote:
I've just installed Clojure 1.3 on a MBP, OSX 10.6.8.
...
How do I run Clojure?
The best way to get Clojure up and running is to use Leiningen so you
don't have to deal with classpaths etc.
On Sat, Nov 26, 2011 at 10:30 PM, Clojure NewB cappy2...@gmail.com wrote:
When I launch Clojure, the following is displayed
...
Would someone explain what happened?
I've followed the directions here http://clojure.org/getting_started
See my other reply: don't worry about the bare Clojure
David Nolen dnolen.li...@gmail.com writes:
Hi David,
As Mark said you can avoid the graph issue with tabling. core.logic
has tabling. If you look at the tabling section here -
https://github.com/clojure/core.logic, you should see something
related to your problem.
Thanks, I'll have a look.
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