Clojure Google Group

Re: Proposal: clojure.io

2010-01-01T09:40:24Z

I am very much in favour of a clojure.io library. It's difficult to do
much useful computing without I/O, and what there is in clojure.core
is insufficient.
Your selection covers all I need and more, so it's fine with me. My
only suggestion is to move all I/O-related functions from clojure.core

Re: Clojure and c++ and a bit more

2010-01-01T00:29:46Z

On Thu, 31 Dec 2009 13:01:35 -0800 (PST)
Reference-counting GC's in most LISPs are pretty much a thing of the
past. Between needing to do cycle detection and having to lock the
reference counters in concurrent environments, they just lose to many
ways. Generational garbage collectors were big last time I

Re: strange typecheck error

2009-12-31T18:45:40Z

Hello Bill
.S> I tried out your example with a couple of files and it appeared to
.S> work. Is it supposed to fail, or is this an example of what you had
.S> to do to work around the problem you mentioned?
Yes, this is working variant
if you'll replace '(.read ireader)' in 'recur' on line 80 with 'res', then

Re: Clojure/SLIME/Emacs questions

2009-12-31T17:25:43Z

Indeed -- that works nicely. I tried going back to a completely non-ELPA-ized setup, but it was too painful; the trick was installing technomancy's github repo of slime *in addition* to the ELPA packages, which all depend on each other.
-Steve

Re: Clojure + Redis

2009-12-31T16:59:54Z

Something else to look at might be the Apache Jackrabbit project at
[link].
I've been looking at tools along these lines as well, and recently
looked at Redis for the same reasons. Right now, though, I'm focusing
my attention on Jackrabbit which is an implementation of the JSR170

Re: Clojure + Redis

2009-12-31T16:20:40Z

Yes. I think it is of much interest. What if I stored a shared data
structure in redis (only because its the fastest), using your memoize
variant, and process (maybe even updated it) it in parallel from
different Clojure nodes. Some kind of primitive map/reduce mechanism I
think.

Proposal: clojure.io

2010-01-01T02:58:49Z

I've been looking over our use of contrib in our large-ish project
at work. About 90% of the invocations of contrib functions are
I/O-related. I wonder if it would be a good idea to include a clojure.io
namespace in Clojure itself. I've mentioned the idea a few times on IRC,
and people seemed to be very much in favour.

Re: Clojure/SLIME/Emacs questions

2010-01-01T01:17:38Z

Hi,
do you use a rather recent checkout of SLIME? If so, you may want to
read the thread [link]
Can't say whether that's related to your problem, though.
Cheers,
Stefan

Re: Clojure/SLIME/Emacs questions

2009-12-31T21:19:07Z

Thanks, Rob. I followed your instructions after not being able to get
Clojure to cooperate with my normal Swank/SLIME installation, and it
works, but only to a point: The SLIME REPL buffer (invoked via the
function `slime-repl') falls out of step with the *inferior-lisp*
buffer.
This never happens to me when using SLIME with a Common Lisp, such as

Re: Clojure and c++ and a bit more

2009-12-31T21:01:35Z

I'm trying to think of scenarios where circular references would be a
problem in Clojure. When does memory actually have to be allocated?
Inside a let block, most often. When lexically scoped variables are
passed to a function, their reference count increases as they are
bound to its parameters, but they're also immutable. One thing about

Re: Clojure/SLIME/Emacs questions

2009-12-31T18:17:36Z

Thanks for the quick response to everyone.
I downloaded slime-fuzzy.el from here:

[link]
, put it into ~/.emacs.d/misc and then added this to my ~/.emacs:
(setq load-path (cons "~/.emacs.d/misc" load-path))
(eval-after-load "slime"

Re: Clojure/SLIME/Emacs questions

2009-12-31T18:15:54Z

I did it like this (I assume that clojure-mode.el has been installed):
1. downloaded slime and swank-clojure
$ pwd
/home/rw/opt/slime
$ head -n 1 .git/remotes/origin
URL: git://git.boinkor.net/slime.gi t
$ git pull
Already up-to-date.
$ pwd
/home/rw/opt/swank-clojure
$ head -n 1 .git/remotes/origin

Re: Clojure + Redis

2009-12-31T17:31:04Z

Have you looked at Cupboard ([link] It tries
to make it easy to store native Clojure data structures, and it is as
ACID and transactional as the underlying Berkeley DB JE
implementation. If you have looked at it, I'd appreciate some feedback
as to where it fell short of your expectations. :)

Re: strange typecheck error

2009-12-31T17:20:16Z

I tried out your example with a couple of files and it appeared to
work. Is it supposed to fail, or is this an example of what you had
to do to work around the problem you mentioned?
It's certainly ok for a function to return different data types. I
guess the simplest example of that would be the identity function.

Re: Clojure/SLIME/Emacs questions

2009-12-31T16:44:04Z

Right now the ELPA slime package does not include contrib (which
contains slime-fuzzy and a number of other things). I am attempting
to add just the required pieces to ELPA to get slime-fuzzy working.
If you would like fuzzy complete to work before this, you will want to
grab slime from technomancy's github repo and then add something like