Timothy -
It becomes more tricky if you want to know what fraction of everything
a host can present that carries 2 or 3 different filters (I mentioned
that somewhere).
For example: everything is 4^4 = 256 options
[ABCD][ABCD][ABCD][ABCD]
Host carries these two filters:
[ABC][AC][AB][ABC]
I want to be able to read and write a clojure object, which contains
functions, from/to a file.
The structure looks something like this: { :s my-string :f (fn[x]
(inc x) }
Reading is easy: (load-file ...) works fine. The tricky part is
writing it back to the file. (pr ...) gives something like
Mark,
Thanks so much for pointing that out, it makes Clojure to belong to others.
Clojure should not be only for FP experts and PH.D holders. I took time to
check the background of some members in this group: we have lecturers,
research scientists and others from the best technical schools. I know
You could consider using a StreamTokenizer:
(import '(java.io StreamTokenizer BufferedReader FileReader))
(defn wordfreq [filename]
(with-local-vars [words {}]
(let [st (StreamTokenizer. (BufferedReader. (FileReader.
filename)))]
(loop [tt (.nextToken st)]
(when (not= tt
Hi David,
(defn fib (fib-helper 0 1)) ; This doesn't work either: (defn fib (fib-
helper '(0 1)))
You're missing your argument list for fib.
I assumed you meant the empty square brackets [] just after the work
fib? I didn't realise these were necessary even when there were no
function
Hello sir,
I would have asked this question in the thread but , I don't want to create
noise over this issue.
I have not been able to get my head around your code or Clojure. I need some
support.
(defn top-words-core [s]
(reduce #(assoc %1 %2 (inc (%1 %2 0))) {}
(re-seq #\w+
I think that just as important as compactness is the issue of
density: the ratio
of the conceptual weightof the computation to the size of the code
expressing it.
if a computation is inherently complicated and I manage to squeeze it
into
a few lines (typically accomplished via an intense
On Mon, Dec 29, 2008 at 12:03 AM, Abhishek Reddy arbs...@gmail.com wrote:
Speaking for myself, as the author of the original Snake example, I
had no intention of converting developers to Clojure, or of producing
instructive or readable code, with that snippet.
While I agree with some of
Haven't solved it yet, but I may have found something useful enough
for someone cleverer than I to make something out of.
When I run clojure directly as inferior-lisp, without slime, the
problem does occur. However, as soon as I enter something in the
inferior lisp buffer, it starts working
On Mon, Dec 29, 2008 at 5:44 AM, Mark Volkmann
r.mark.volkm...@gmail.com wrote:
I would like to produce a version of the snake code that could serve
as an example of the kind of code that the Clojure community thinks is
good. Unless it's part of an exercise to produce the shortest code
My challenge to everyone on the list is to start with any version of
the snake code you've seen and make it as readable as *you* think it
should be by doing things like renaming variables and functions,
adding comments and changing indentation. I'd really like to see what
*you* think is the
On Sat, Dec 27, 2008 at 12:03 AM, Mark Engelberg
mark.engelb...@gmail.com wrote:
On Fri, Dec 26, 2008 at 8:35 PM, Adrian Cuthbertson
adrian.cuthbert...@gmail.com wrote:
It's important to distinguish between updating atoms within
transactions and outside transactions. In the former case, one
On Dec 29, 2008, at 10:45 AM, Mark Volkmann wrote:
On Mon, Dec 29, 2008 at 5:44 AM, Mark Volkmann
r.mark.volkm...@gmail.com wrote:
I would like to produce a version of the snake code that could serve
as an example of the kind of code that the Clojure community thinks
is
good. Unless
You should consider using docstrings for documenting functions
On 29 déc, 16:45, Mark Volkmann r.mark.volkm...@gmail.com wrote:
On Mon, Dec 29, 2008 at 5:44 AM, Mark Volkmann
r.mark.volkm...@gmail.com wrote:
I would like to produce a version of the snake code that could serve
as an
Hi,
I'm not sure how to integrate this into the Tomcat JSP scenario, but I
think the issue is that *use-context-classloader* is not set to true
(it defaults to nil).
Again, I'm not positive how to get your JSP to do this, but an
untested stab at it would be just to wrap the call to
Doh!
I just read your discussion w/ Anton on his blog. Seems you've already
looked at the context classloader.
*shrug*. I'm stumped.
/mike.
On Mon, Dec 29, 2008 at 12:46 PM, Michael Reid kid.me...@gmail.com wrote:
Hi,
I'm not sure how to integrate this into the Tomcat JSP scenario, but I
On Monday 29 December 2008 09:11, lpetit wrote:
You should consider using docstrings for documenting functions
There's a big difference between the comments directed at someone
reading the code (possibly the author at a later date) and someone
wishing to use it. Function-level documentation
On Sat, Dec 27, 2008 at 8:55 AM, Peter Wolf opus...@gmail.com wrote:
Hi Justin,
This is the right place. Thanks for trying the plugin.
It would absolutely be helpful to document use of the plugin. However, I
am sure you can tell that it is nowhere near ready.
Yes, I noticed there wasn't
Rich rest.
I have gone through the process of implementing this in defn. The
patch is inlined for commenting (if need be) and attached for accurate
application.
I declare my changes public domain, but I suppose I could fill out a
CA if it helps. I can also make a similar change for defmacro, if
On Mon, Dec 29, 2008 at 11:11 AM, lpetit laurent.pe...@gmail.com wrote:
You should consider using docstrings for documenting functions
Good suggestion. I've changed my code to do that. I also noticed that
I had forgotten to replace special characters with built-in entities
in my HTML, so that
On Mon, Dec 29, 2008 at 8:05 AM, Rich Hickey richhic...@gmail.com wrote:
It is certainly not the whole point of Clojure to make as much code as
possible safe for its software transactional memory. Clojure is a set
of tools. They are designed to allow for robust programs to be built,
including
On Dec 29, 7:50 am, Achim Passen achim.pas...@gmail.com wrote:
Hi!
I uploaded my attempt at this to the files section of this group:
http://clojure.googlegroups.com/web/mod-sgn.diff
It adds the modulus operator plus, as a by-product, the signum
operator (sgn).
Comments most welcome!
Hi everybody,
I just got started with Clojure and I'm now trying to simultaneously
learn Lisp and Java. My progress is slow, but I'm having a lot of fun.
I hit a small roadblock though, because I can't figure out why calling
load-file from within a do is behaving the way it is. I'm probably
On Dec 21, 5:53 pm, Stephen C. Gilardi squee...@mac.com wrote:
On Dec 21, 2008, at 4:43 PM, Stephen C. Gilardi wrote:
On Dec 21, 2008, at 4:40 PM, Rich Hickey wrote:
If main doesn't match the behavior of Repl and Script in this area
when run in repl or script modes respectively, it
On Sun, Dec 28, 2008 at 6:05 PM, Randall R Schulz rsch...@sonic.net wrote:
Howdy, Folks,
The gauntlet has been thrown down:
I've made changes in svn 1186 and 1188 that should help facilitate
targeting Android/Dalvik. clojure.jar now translates with dx --dex,
but that is all I've had time to
Hi Kees-Jochem,
Am 29.12.2008 um 20:37 schrieb Kees-Jochem Wehrmeijer:
I created a small file foo.clj with the following contents:
(defn foo [] :bar)
Then from a REPL I try the following:
(do (load-file foo.clj) (foo))
but this gives an error message:
java.lang.Exception: Unable to resolve
Looking at this code the uppercase variables stands out.
This isn't idiomatic is it?
(def GRID_SIZE 10)
(def HEIGHT 600)
(def MARGIN 50)
On Mon, Dec 29, 2008 at 12:19 PM, Mark Volkmann
r.mark.volkm...@gmail.comwrote:
On Mon, Dec 29, 2008 at 11:11 AM, lpetit laurent.pe...@gmail.com wrote:
Fixed (rev 1190)
tristan a écrit :
Thanks for the explanation Christophe.
I really need to try use (for) more often. I seem to forget about it
all the time.
On Dec 27, 10:42 pm, Christophe Grand christo...@cgrand.net wrote:
tristan a écrit :
Hi All,
I've been trying to
On Dec 29, 2:29 pm, Mark Engelberg mark.engelb...@gmail.com wrote:
On Mon, Dec 29, 2008 at 8:05 AM, Rich Hickey richhic...@gmail.com wrote:
It is certainly not the whole point of Clojure to make as much code as
possible safe for its software transactional memory. Clojure is a set
of
On Sat, Dec 27, 2008 at 9:24 PM, CuppoJava patrickli_2...@hotmail.com wrote:
I believe the first parameter must be this, only in the case of
methods .
The init function doesn't take a this parameter.
Correct.
My understanding is that the init function is actually run before the
instance is
On Mon, Dec 29, 2008 at 2:24 PM, Brian Doyle brianpdo...@gmail.com wrote:
Looking at this code the uppercase variables stands out.
This isn't idiomatic is it?
(def GRID_SIZE 10)
(def HEIGHT 600)
(def MARGIN 50)
I don't know. I was following Java conventions of making constants all
Emeka,
In short, no. Remember, this was about me learning some functional
tools, so this shouldn't be viewed as pedagogical. Well, *my* code
shouldn't - I can't speak for the other posters in this thread.
-Matt
On Dec 27, 7:28 am, Emeka emekami...@gmail.com wrote:
(defn sum-up-to [n]
On Dec 29, 3:40 pm, Mark Volkmann r.mark.volkm...@gmail.com wrote:
On Mon, Dec 29, 2008 at 2:24 PM, Brian Doyle brianpdo...@gmail.com wrote:
Looking at this code the uppercase variables stands out.
This isn't idiomatic is it?
(def GRID_SIZE 10)
(def HEIGHT 600)
(def MARGIN 50)
I
On Mon, Dec 29, 2008 at 3:40 PM, Mark Volkmann
r.mark.volkm...@gmail.com wrote:
On Mon, Dec 29, 2008 at 2:24 PM, Brian Doyle brianpdo...@gmail.com wrote:
Looking at this code the uppercase variables stands out.
This isn't idiomatic is it?
(def GRID_SIZE 10)
(def HEIGHT 600)
(def MARGIN
On Mon, Dec 29, 2008 at 3:01 PM, Stuart Sierra
the.stuart.sie...@gmail.com wrote:
On Dec 29, 3:40 pm, Mark Volkmann r.mark.volkm...@gmail.com wrote:
On Mon, Dec 29, 2008 at 2:24 PM, Brian Doyle brianpdo...@gmail.com wrote:
Looking at this code the uppercase variables stands out.
This isn't
On Mon, Dec 29, 2008 at 3:10 PM, Chouser chou...@gmail.com wrote:
On Mon, Dec 29, 2008 at 3:40 PM, Mark Volkmann
r.mark.volkm...@gmail.com wrote:
On Mon, Dec 29, 2008 at 2:24 PM, Brian Doyle brianpdo...@gmail.com wrote:
Looking at this code the uppercase variables stands out.
This isn't
On Mon, Dec 29, 2008 at 4:40 PM, Mark Volkmann
r.mark.volkm...@gmail.com wrote:
I think that's supposed to be + instead of *, at least Common Lisp
seems to use +.
I meant * -- I don't know CL at all, but the *asterisk* form is used
frequently in clojure.core, while no +plus+ form ever
I don't know CL that well myself, but I think the convention is to use
+ for constants (i.e. defconst) where * is used for global variables
(i.e. defparameter). In that case the + convention doesn't really
make sense in clojure as it doesn't have any notion of a constant
reference type.
On Mon, Dec 29, 2008 at 3:58 PM, Chouser chou...@gmail.com wrote:
On Mon, Dec 29, 2008 at 4:40 PM, Mark Volkmann
r.mark.volkm...@gmail.com wrote:
I think that's supposed to be + instead of *, at least Common Lisp
seems to use +.
I meant * -- I don't know CL at all, but the *asterisk*
It looks like the mutable locals use case is covered by the with-
local-vars binding form. That said, I'm not sure how useful this
would be. Even in Java 5, 95% of my local vars are immutable, i.e
annotated as final and never have any mutating methods called on
them. Most of the rest are
That seems to be working better now John. I looked over most of the code
and it seems
like a good start. I'm no expert when it comes to functional programming or
Clojure,
so I'm not sure how to critic the code exactly. If I was doing the porting
I would prolly
do it in very OO way, since
A useful comment addition:
How do I run it?
Cheers
Tom
2008/12/29 Mark Volkmann r.mark.volkm...@gmail.com
On Mon, Dec 29, 2008 at 3:58 PM, Chouser chou...@gmail.com wrote:
On Mon, Dec 29, 2008 at 4:40 PM, Mark Volkmann
r.mark.volkm...@gmail.com wrote:
I think that's supposed to be
Thanks for the reply Chouser,
Yeah, I figured it would be like that. No this value actually exists
until after the init function is called.
The reason I'm asking about this is that it's quite standard practice
to set up some parameters inside the constructor of a class.
ie. A use-case like
On Mon, Dec 29, 2008 at 12:40 PM, Rich Hickey richhic...@gmail.com wrote:
People who know what they are doing can do these things right now with
Clojure's array support. There really isn't any more value for Clojure
to add to that, so no special primitives. I fully accept the necessity
of
On Mon, Dec 29, 2008 at 8:02 PM, CuppoJava patrickli_2...@hotmail.com wrote:
The reason I'm asking about this is that it's quite standard practice
to set up some parameters inside the constructor of a class.
ie. A use-case like this is quite common, and (I think) reasonable.
public class
On Mon, Dec 29, 2008 at 2:57 PM, Dave Griffith
dave.l.griff...@gmail.com wrote:
It looks like the mutable locals use case is covered by the with-
local-vars binding form.
Not really. with-local-vars has somewhat surprising semantics.
For example, you'd expect this (contrived) function to
Hi all,
Looking into ants.clj, I came across
(defn place [[x y]]
(- world (nth x) (nth y)))
What - mean here?
thanks
sun
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You received this message because you are subscribed to the Google Groups
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To post to this group,
Hi,
Following today's SVN updates to the Clojure Core and Contrib (as of
this writing, at 17:42 PST, which is GMT -8), I can no longer invoke the
Contrib REPL as I was able to before today. When I do, I get no prompt
until I type a non-empty line, after which I'm presented with an
unending
;; Note: originally I was just going to write Stuart, but I think input from
anybody on the list could be valuable, so I'm CC'ing Clojure
Hi Stuart,
I've been working on an RSpec-like library for Clojure called Specjure. It
has gone through many iterations and the one that is currently up on
What if you run the Swing code in the Event Dispatch Thread?
In other words, does this:
(. javax.swing.SwingUtilities (invokeAndWait #(.
javax.swing.JOptionPane (showMessageDialog nil Hello World
or
(. javax.swing.SwingUtilities (invokeLater #(. javax.swing.JOptionPane
(showMessageDialog
On Dec 24, 4:20 pm, Mibu mibu.cloj...@gmail.com wrote:
I'd write it this way:
(apply + (mapcat #(range 1 %) (range 2 14)))
I think idiomatically I would have written it with (partial range 1)
instead of #(range 1 %), but I prefer compact forms.
In Clojure (anybody correct me if I'm wrong) I
On Dec 29, 2008, at 8:49 PM, Randall R Schulz wrote:
Following today's SVN updates to the Clojure Core and Contrib (as of
this writing, at 17:42 PST, which is GMT -8), I can no longer invoke
the
Contrib REPL as I was able to before today. When I do, I get no prompt
until I type a non-empty
I think if Clojure could do something like this (enforce a certain
kind of referentially transparent mutable local), that would be neat,
It is possible to achieve this behavior explicitly:
(defn create-add-2 []
(with-local-vars [x 1]
(do
(var-set x 2)
(let [z @x]
(fn
You can look up the documentation for a function/macro interactively
from the repl:
user= (doc -)
-
clojure.core/-
([x form] [x form more])
Macro
Threads the expr through the forms. Inserts x as the
second item in the first form, making a list of it if it is not a
Craig,
Something you should be aware of is that this implementation of
Fibonacci is very inefficient. For more info as to why, you can read:
http://mitpress.mit.edu/sicp/full-text/book/book-Z-H-11.html#%_sec_1.2.2
The short story is doing it this way performs a lot of wasted
calculations as n
On Mon, Dec 29, 2008 at 9:36 PM, Aaron Brooks aa...@brooks1.net wrote:
In Clojure (anybody correct me if I'm wrong) I think it's preferable
for performance reasons to use reduce instead of apply when you can.
I actually think that's backwards. In many cases it doesn't really
matter. It's
(defn top-words-core [s]
(reduce #(assoc %1 %2 (inc (%1 %2 0))) {}
(re-seq #\w+
(.toLowerCase s
maps are functions of their keys means:
user= ({:a 1, :b 2, :c 3} :a)
1
Here we created a map {:a 1, :b 2, :c 3}, can then called it like a
function with
Very criptic for newbie.
What does Threads the expr through the forms. mean?
Does it create a thread to execute?
thanks
sun
On Dec 29, 10:07 pm, Paul Barry pauljbar...@gmail.com wrote:
You can look up the documentation for a function/macro interactively
from the repl:
user= (doc -)
Rich Hickey wrote:
On Sun, Dec 28, 2008 at 6:05 PM, Randall R Schulz rsch...@sonic.net wrote:
Howdy, Folks,
The gauntlet has been thrown down:
I've made changes in svn 1186 and 1188 that should help facilitate
targeting Android/Dalvik. clojure.jar now translates with dx --dex,
On Monday 29 December 2008 18:36, Stephen C. Gilardi wrote:
On Dec 29, 2008, at 8:49 PM, Randall R Schulz wrote:
Following today's SVN updates to the Clojure Core and Contrib (as
of this writing, at 17:42 PST, which is GMT -8), I can no longer
invoke the Contrib REPL as I was able to
On Dec 30, 2:49 pm, wubbie sunj...@gmail.com wrote:
Very criptic for newbie.
What does Threads the expr through the forms. mean?
Shameless plug, if you find learning from examples easier than textual
descriptions, you might want to look up
thanks for sharing. looking forward to the day when i can write my
android app in clojure!
On Dec 30, 12:07 pm, Adam King va3...@gmail.com wrote:
Rich Hickey wrote:
On Sun, Dec 28, 2008 at 6:05 PM, Randall R Schulz rsch...@sonic.net wrote:
Howdy, Folks,
The gauntlet has been thrown
Now I'm dumped back to my shell prompt following a single Clojure REPL
prompt (of the Contrib REPL variety) without even touching the
keyboard:
% clojure-svn --crepl +cp=$PROJ_SRC/tau/run +cp=/dar/clojure
1:1 user=
%
Here it is working with the current clojure.jar and clojure-contrib.jar:
%
On Mon, Dec 29, 2008 at 7:15 PM, Brian Doyle brianpdo...@gmail.com wrote:
I noticed that in the init-model macro you are creating a 'defn table []
...' function in the
model namespace and was wondering why you didn't just make it a def instead,
since
it doesn't take any args?
That didn't
Thanks, Mike - although we had already looked at the context
classloader, your explanation did provide some inspiration for a
workaround. The correct classloader should be available in the JSP and
so it should be possible to grab it there and pass it into Clojure as
a variable (or a binding?) in
On Dec 28, 7:50 pm, Piotr 'Qertoip' Włodarek qert...@gmail.com
wrote:
Following my recent adventure with words ranking, here's the parallel
version:
...
(defn parallel-top-words [in-filepath out-filepath]
(let [string (slurp in-filepath)
'slurp' just reads the whole file in at once as a
So up until now, I've mainly been writing my code in a given file,
using no namespaces, and then just compiling and executing it in a
SLIME-based REPL.
I've accumulated a few functions that seem worth making into a little library.
So, for example, I've written a few permutation functions. I
How's textjure coming along?
On Dec 10, 3:35 pm, Chouser chou...@gmail.com wrote:
On Wed, Dec 10, 2008 at 7:15 AM, Simon Brooke still...@googlemail.com wrote:
I note people seem mainly to be using Emacs as an editing/development
environment for Clojure. But as people keep pointing out,
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