On Nov 27, 2008, at 11:37 PM, samppi wrote:
> user=> (.length "")
> 0
> user=> (.isEmpty "")
> java.lang.IllegalArgumentException: No matching field found: isEmpty
> for class java.lang.String (NO_SOURCE_FILE:0)
>
> Why does .length, but not .isEmpty, work on Strings?
You're making method calls
user=> (.length "")
0
user=> (.isEmpty "")
java.lang.IllegalArgumentException: No matching field found: isEmpty
for class java.lang.String (NO_SOURCE_FILE:0)
Why does .length, but not .isEmpty, work on Strings?
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You received this message beca
I've only seen continuation-based implementations of the amb
operator. Is there an alternative way to code amb that would work in
Clojure?
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Very cool Stefan, thanks! I'm planning to write a clojure.compile/main
in Clojure along the lines of what you came up with. I think the
current Compile.java is sufficient for bootstrapping clojure.jar--with
the "finally" fix you recommend.
Thanks,
--Steve
On Nov 27, 2008, at 11:29 AM, St
I've found myself writing (reduce into coll [coll1 coll2 coll3]) a few
times. It would be nice to instead write (into coll coll1 coll2 coll3),
like (+ 1 2 3) and other similar forms. I've attached a trivial patch
that works for me.
--~--~-~--~~~---~--~~
You rece
For kicks, I've uploaded a little wrapper around JInterface to make it
a little more lispy. It might make it a little easier for anyone
interested in playing around with that option.
http://clojure.googlegroups.com/web/erlang.clj
On Nov 25, 8:11 am, Rich Hickey <[EMAIL PROTECTED]> wrote:
> Jint
On Nov 27, 12:07 pm, "Michael Wood" <[EMAIL PROTECTED]> wrote:
> On Thu, Nov 27, 2008 at 9:21 PM, Chouser <[EMAIL PROTECTED]> wrote:
>
> > On Thu, Nov 27, 2008 at 2:12 PM, Kei Suzuki <[EMAIL PROTECTED]> wrote:
>
> >> Any formatted print method calls like below throw
> >> java.lang.ClassCastExcepti
On Nov 27, 11:21 am, Chouser <[EMAIL PROTECTED]> wrote:
> On Thu, Nov 27, 2008 at 2:12 PM, Kei Suzuki <[EMAIL PROTECTED]> wrote:
>
> > Any formatted print method calls like below throw
> > java.lang.ClassCastException at clojure.lang.Compiler.eval.
>
> > (.printf System/out "%d" 1)
> > (. System/o
I've done a bit of Java programming, and one of the reasons I use an
IDE (netbeans) rather than plain vim is that I can write code without
having to bother about where every class I use comes from, then click
'fix imports' and have netbeans statically examine the code and add
import statements. I'
On 27 nov, 18:09, Rich Hickey <[EMAIL PROTECTED]> wrote:
> > > (defn trampoline [f]
> > > (let [ret (f)]
> > > (cond f
> > > (fn? ret) (recur ret)
> > > (instance? org.clojure.lang.NoBoingWrapper f) (.returnInstance
> > > f)
> > > else ret)))
> I considered that, and it
Hi, great work! It really put to shame my own pathetic attempt to try
to implement monad last summer. ;-)
Thanks, I'll certainly learn a lot from this.
On Nov 25, 4:40 am, Konrad Hinsen <[EMAIL PROTECTED]> wrote:
> I just uploaded an improved version of my monad implementation:
>
> http:/
On Nov 24, 6:19 pm, Justin Giancola <[EMAIL PROTECTED]> wrote:
> So, you need to evaluate all of the args independently when building
> the list literals, possibly with:
> (defmacro stub [stubs & body]
> (let [stub-maps
> (reduce (fn [acc [[f & args] res]]
> (assoc-in
Hi Steve,
Thanks for the explanation, and for the updated version of macro?
Cheers,
Stuart
> On Nov 25, 2008, at 7:28 PM, Stuart Halloway wrote:
>
>> (1) Did macro? ever work? If it did, I would like to go back and
>> understand what change was made to Clojure and why.
>
> Yes it did work. I be
On Thu, Nov 27, 2008 at 9:21 PM, Chouser <[EMAIL PROTECTED]> wrote:
>
> On Thu, Nov 27, 2008 at 2:12 PM, Kei Suzuki <[EMAIL PROTECTED]> wrote:
>>
>> Any formatted print method calls like below throw
>> java.lang.ClassCastException at clojure.lang.Compiler.eval.
>>
>> (.printf System/out "%d" 1)
>>
On Nov 25, 2008, at 7:28 PM, Stuart Halloway wrote:
> (1) Did macro? ever work? If it did, I would like to go back and
> understand what change was made to Clojure and why.
Yes it did work. I believe the change described here:
http://groups.google.com/group/clojure/msg/65b0dd5f0dfeee88
would
On Thu, Nov 27, 2008 at 2:12 PM, Kei Suzuki <[EMAIL PROTECTED]> wrote:
>
> Any formatted print method calls like below throw
> java.lang.ClassCastException at clojure.lang.Compiler.eval.
>
> (.printf System/out "%d" 1)
> (. System/out (printf "%d" 1))
> (.format System/err java.util.Locale/US "%s"
Any formatted print method calls like below throw
java.lang.ClassCastException at clojure.lang.Compiler.eval.
(.printf System/out "%d" 1)
(. System/out (printf "%d" 1))
(.format System/err java.util.Locale/US "%s" "error")
(. System/out format nil "%s" "hello, world!\n")
Am I missing something?
Actually, this is an issue with qualified names, apparently it was
necessary to explicitly invoke the clojure.core namespace.
On Nov 27, 12:18 pm, rob <[EMAIL PROTECTED]> wrote:
> Any news on this? I'm also interested in getting clojure to work in
> an applet. Right now, I'm testing out the fea
Any news on this? I'm also interested in getting clojure to work in
an applet. Right now, I'm testing out the feasibility of developing a
clojure applet for the Facebook platform (a game). I assume that a
certificate will solve the permissions problem, but for now I'm
running it locally with a
I've closed the voting -- thanks to everyone who participated. A
total of 44 people voted 231 times, for an average of 5.25 votes per
person. That comes to about 4.4% participation in the survey (of the
1010 people who are members of this Google Group) -- so I'm sure this
is an accurate represen
Rich,
I'm currently working on some code where I'm implementing state
machines where each state is a function. To move to another state,
the current state returns the function of the next state and
trampoline runs the machine through to completion. My next step is to
have each state return a va
On Nov 27, 8:37 am, lpetit <[EMAIL PROTECTED]> wrote:
> On Nov 27, 1:58 pm, lpetit <[EMAIL PROTECTED]> wrote:
>
> > and the modification of trampoline along these lines :
> > (defn trampoline [f]
> > (let [ret (f)]
> > (cond f
> >(fn? ret) (recur ret)
> >(instance? org.clo
On Nov 27, 11:42 am, "Michael Reid" <[EMAIL PROTECTED]> wrote:
> > gen-class will always create a relationship between the stub class and
> > the load (__init) class, as well as the namespace in which the
> > implementations will be found, the naming conventions for matching
> > etc. It's a high
> gen-class will always create a relationship between the stub class and
> the load (__init) class, as well as the namespace in which the
> implementations will be found, the naming conventions for matching
> etc. It's a high-level feature with a lot of power, but by no means
> represents a univer
> OK, I skimmed through compile and RT and it seems as if you "just"
> needed to construct a proper URLClassLoader with the directories you
> need on the classpath, set this one as the context classloader and set
> *use-context-classloader* to true before you invoke compile.
Yes, works. The attac
Hi
> - throw new CompilerException((String) SOURCE.get
> (), (Integer) LINE.get(), e);
> + throw new CompilerException((String) SOURCE.get
> (), (Integer) LINE_AFTER.get(), e);
Having dug through the code a bit more, I don't my patch suggestion is
quit
On 2008-11-27, Stephen C. Gilardi <[EMAIL PROTECTED]> wrote:
> On Nov 27, 2008, at 7:41 AM, Stefan Bodewig wrote:
>> Looks pretty easy and it would probably take me longer to sign and
>> send the CA than to put together an antlib.xml file 8-)
>> If anybody is interested, let me know.
> I'm int
> On 2008-11-26, Stuart Sierra <[EMAIL PROTECTED]> wrote:
>> The Ant task looks like this:
>>
>>
>>
>> ...
>> > description="Precompile Clojure core sources.">
>> > classpath="${build}:${cljsrc}">
>>
On Nov 26, 11:06 pm, Chas Emerick <[EMAIL PROTECTED]> wrote:
> Looks good so far, Rich. Should be a blissfully smooth transition
> from the "legacy" gen-class impl.
>
> This is only tangentially related to the docs you're writing, but I
> won't let that stop me:
>
> As you know, I have at least
On Nov 27, 2008, at 7:41 AM, Stefan Bodewig wrote:
> Looks pretty easy and it would probably take me longer to sign and
> send the CA than to put together an antlib.xml file 8-)
>
> If anybody is interested, let me know.
I'm interested in making common developer tasks as easy as possible to
ac
On Nov 27, 1:58 pm, lpetit <[EMAIL PROTECTED]> wrote:
> and the modification of trampoline along these lines :
> (defn trampoline [f]
> (let [ret (f)]
> (cond f
> (fn? ret) (recur ret)
> (instance? org.clojure.lang.NoBoingWrapper f) (.returnInstance
> f)
> else ret)))
Thank you for the answer.
Could trampoline benefit for being enhanced by allowing an explicit
"escaping" for a return value of type function (that could also work
for other return types, but would not be necessary for the common
case).
Something like these :
- common usage : as usual
user=> (de
On 2008-11-27, Meikel Brandmeyer <[EMAIL PROTECTED]> wrote:
> However I have no experience with ant. So how can I set the
> path via an envirnment variable?
> Eg. CLOJURE_LIB which is also used by some startup script which was
> posted.
the value of the environment variable becomes ${prefix.C
On 2008-11-26, Stuart Sierra <[EMAIL PROTECTED]> wrote:
> The Ant task looks like this:
>
>
>
> ...
> description="Precompile Clojure core sources.">
> classpath="${build}:${cljsrc}">
>
Hi,
On 27 Nov., 10:59, Meikel Brandmeyer <[EMAIL PROTECTED]> wrote:
> However I have no experience with ant. So how can I set the
> path via an envirnment variable? Eg. CLOJURE_LIB which is
> also used by some startup script which was posted. That would
> make a nice fit.
Ok. I looked it up:
On Nov 27, 2008, at 7:13 AM, Stephen C. Gilardi wrote:
> interface "fn" that distinguishes
The interface is "clojure.lang.Fn".
--Steve
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On Nov 27, 2008, at 5:21 AM, Robert Pfeiffer wrote:
> If you want to return sets, keywords, maps, or everything that
> implements the fn interface this is also an issue. Does trampolining
> on keywords make sense?
The svn revision that introduced trampoline also introduced a "marker"
interface
Hi,
On 26 Nov., 23:40, André Thieme <[EMAIL PROTECTED]> wrote:
> Maybe a simple accumulator could work here:
> user> (let [acc (ref 0)]
> (defn make-accumulator [n]
> (dosync (ref-set acc n))
> (fn [i]
> (dosync (alter acc + i)
> #'user/make-accumulator
On 26 Nov., 22:38, "Stephen C. Gilardi" <[EMAIL PROTECTED]> wrote:
> [..] Note that if you want to return a fn as a
> final value, you must wrap it in some data structure and unpack it
> after trampoline returns.
If you want to return sets, keywords, maps, or everything that
implements
Hi,
On 26 Nov., 20:53, Stuart Sierra <[EMAIL PROTECTED]> wrote:
> description="Precompile Clojure core sources.">
> classpath="${build}:${cljsrc}">
> value="${build}"/>
>
>
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