On 03/14/2012 08:00 PM, David Nolen wrote:
Thanks to Edmund Jackson we have a new primer for core.logic:
https://github.com/clojure/core.logic/wiki/A-Core.logic-Primer
Feedback appreciated!
Hi!
Does a run* expression evaluate to only the query-variable, while lvars
introduced with fresh
Hi Thorsten,
Thanks for reading and the great feedback. In response, yes lvars
introduced by fresh stay 'inside' the run* which only returns the query
lvar. Your other comments are 100% correct and I will update the document
to reflect them.
Thanks again,
Edmund
On Thursday, 15 March
This primer is a good introduction to core.logic operators. What I think is
missing is a tutorial that answers these questions:
What type of problems does core.logic excel at solving?
How do you solve problems with core.logic?
How does it enable simplicity? (Rich said in simple made easy that
On Thu, Mar 15, 2012 at 9:05 AM, Milton Silva milton...@gmail.com wrote:
This primer is a good introduction to core.logic operators. What I think
is missing is a tutorial that answers these questions:
What type of problems does core.logic excel at solving?
How do you solve problems with
An expression yielding an arbitrary symbol, used as a function,
returns its second argument.
((symbol whatever) 1 :a)
= :a
If it has one argument, it returns nil.
((symbol whatever) 1)
= nil
It does not accept more than two arguments.
((symbol whatever) 1 :a \z)
= #ArityException
https://github.com/martintrojer/frinj
New features;
- Live unit feeds for currency conversion, precious and industrial metals
plus agrarian commodities
- New repl namespace for more convenient initialisation
Frinj is a practical unit-of-measure calculator DSL for
Holy excellent development Batman!
On 3/14/12 2:08 PM, Nathan Sorenson wrote:
I've modified the output of the ClojureScript compiler to emit Scheme
code. At this point the core library is successfully compiled by
Gambit Scheme. A nice advantage of this is that Gambit compiles code
via C,
This is what I did on a project branched off of ClojureScript One:
https://github.com/pandeiro/multiedit/blob/multi-edit/src/app/clj/one/sample/repl.clj
It saves the server instance to an atom and adds (stop) and (restart)
functions. Just an idea. M
On Sat, Mar 10, 2012 at 6:36 AM, Pierre-Henry
On Mon, 2012-03-12 at 21:59 +0900, Andrzej wrote:
On Sun, Mar 11, 2012 at 2:56 AM, Softaddicts
lprefonta...@softaddicts.ca wrote:
About item 1:
The first Lisp I used was runing on a DEC-10 with 256k 36 bits words of
physical
memory (magnetic-core memory).
It had a structural editor.
Hi
If I apply the following function to 4 and 6
(defn arith [x y]
(map (fn [op] [(op x y) `(~op ~x ~y)]) [+ - / *]))
I'd like to get a result of the form
([10 (+ 4 6)] [-2 (- 4 6)] ...)
but instead I get something like
([10 (#core$_PLUS_ clojure.core$_PLUS_@4f6de641 4 6)] ...
How do I
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 12/03/2012 16:09, Gary Trakhman wrote:
Seriously considering some kind of apparatus to facilitate
hammock-driven-development in the office. Has anyone implemented a
hammock in their workspace?
How about one of those giant bean bag chairs?
It seems that when using the sorted set with my own comparator
(sorted-set-by),
the lookup via 'contains?' function is based only on the part of the items
that participate in the ordering:
(contains? (sorted-set [1 :a] [2 :b]) [2 :c])
;= false
(contains? (sorted-set-by #( (%1 0) (%2 0)) [1 :a]
amazing stuff guys!!!
Jim
On 14/03/12 19:00, David Nolen wrote:
Thanks to Edmund Jackson we have a new primer for core.logic:
https://github.com/clojure/core.logic/wiki/A-Core.logic-Primer
Feedback appreciated!
David
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You received this message because you are subscribed to the Google
神.clj | Shen for Clojure 0.1.0
Shen[1] is a portable functional programming language by Mark Tarver[2]
that offers
* pattern matching,
* λ calculus consistency,
* macros,
* optional lazy evaluation,
* static type checking,
* an integrated fully functional Prolog,
* and an inbuilt
Hi
If I apply the following function to 4 and 6
(defn arith [x y]
(map (fn [op] [(op x y) `(~op ~x ~y)]) [+ - / *]))
I'd like to get a result of the form
([10 (+ 4 6)] [-2 (- 4 6)] ...)
but instead I get something like
([10 (#core$_PLUS_ clojure.core$_PLUS_@4f6de641 4 6)] ...
How do I
midje-mode + midje is a nice way doing TDD with emacs---if you modify it so
it prints PASSED instead of a random quotation.
-Mike
On Thursday, 8 March 2012 10:10:15 UTC-7, AndyK wrote:
Curious about which emacs packages folks use for increased Clojure
productivity (beyond the obvious, like
Hi all,
I wrote a [brief beginner's guide to Clojure][1] that might interest
those who are brand new to Clojure.
[1]: http://www.unexpected-vortices.com/clojure/brief-beginners-guide/
First paragraph: The purpose of this brief (and sometimes
opinionated) guide is to get new users quickly set up
Hello,
I am using lein deps for storm-starter. It said the first ran lein,
it would propogate dependencies. But the first time, I ran it in a
wrong place and got the following error. Then I moved to project root
and did lein deps again. I got the same error. How to fix the
dependencies?
https://github.com/hraberg/shen.clj | [shen.clj 0.1.0]
Shen is a portable functional programming language by Mark Tarver:
The Shen mission is to develop an ultra-portable version of Qi ...
The means of achieving this involves developing a small fast Lisp
called Kl which is rich enough to
On 12/03/2012 19:03, Sean Devlin wrote:
vim :-p
+1 ;-)
On Thursday, March 8, 2012 12:10:15 PM UTC-5, AndyK wrote:
Curious about which emacs packages folks use for increased Clojure
productivity (beyond the obvious, like slime/swank-clojure)...
--
You received this message
If I apply the following function to 4 and 6
(defn arith [x y]
(map (fn [op] [(op x y) `(~op ~x ~y)]) [+ - / *]))
I'd like to get a result of the form
([10 (+ 4 6)] [-2 (- 4 6)] ...)
but instead I get something like
([10 (#core$_PLUS_ clojure.core$_PLUS_@4f6de641 4 6)] ...
You want to
What's going on?
Symbols, like keywords, are functions that look themselves up in maps.
In the 2 arg version, you're supplying an invalid map and a not-found
value, and it's returning not-found. In the 1 arg version, it returns
the default not-found of nil.
jack.
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As an aside, when playing around with quoting and unquoting, I noticed
that the result of ('+ 3 5) is 5. I'm not sure what I would have
expected (maybe an error?) but it wasn't the third item of the list.
Is there any reason for this?
From http://clojure.org/data_structures:
Symbols, just
Could this tutorial explain the foremost question people have when seeing
core.logic: why is o appened to the names of all those functions?
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On Thu, Mar 15, 2012 at 12:59 PM, Daniel Gagnon redalas...@gmail.comwrote:
Could this tutorial explain the foremost question people have when seeing
core.logic: why is o appened to the names of all those functions?
It's a convention from The Reasoned Schemer. It's just an easy way to
David Nolen dnolen.li...@gmail.com writes:
On Thu, Mar 15, 2012 at 12:59 PM, Daniel Gagnon redalas...@gmail.com
wrote:
Could this tutorial explain the foremost question people have
when seeing core.logic: why is o appened to the names of all
those functions?
It's a convention
ashu ash...@gmail.com writes:
I am using lein deps for storm-starter. It said the first ran lein,
it would propogate dependencies. But the first time, I ran it in a
wrong place and got the following error. Then I moved to project root
and did lein deps again. I got the same error. How to fix
On Thu, Mar 15, 2012 at 1:41 PM, Phil Hagelberg p...@hagelb.org wrote:
David Nolen dnolen.li...@gmail.com writes:
On Thu, Mar 15, 2012 at 12:59 PM, Daniel Gagnon redalas...@gmail.com
wrote:
Could this tutorial explain the foremost question people have
when seeing core.logic:
On Thu, Mar 15, 2012 at 10:49 AM, David Nolen dnolen.li...@gmail.com wrote:
It's a convention from The Reasoned Schemer. It's just an easy way to
differentiate goals from regular functions.
What's the rationale in TRS for that? (and conde) Like Phil (and no
doubt others) it seems an odd
On Thu, Mar 15, 2012 at 3:08 PM, Sean Corfield seancorfi...@gmail.comwrote:
On Thu, Mar 15, 2012 at 10:49 AM, David Nolen dnolen.li...@gmail.com
wrote:
It's a convention from The Reasoned Schemer. It's just an easy way to
differentiate goals from regular functions.
What's the rationale
On Thu, Mar 15, 2012 at 3:08 PM, Sean Corfield seancorfi...@gmail.comwrote:
In other words, you want access to both unqualified cons and conso,
rest and resto etc in the same code? Yet core.logic overrides == and
so you either have to namespace that or exclude it (the examples seem
to do the
Paul Carey paul.p.ca...@gmail.com writes:
Hi
If I apply the following function to 4 and 6
(defn arith [x y]
(map (fn [op] [(op x y) `(~op ~x ~y)]) [+ - / *]))
I'd like to get a result of the form
([10 (+ 4 6)] [-2 (- 4 6)] ...)
but instead I get something like
([10 (#core$_PLUS_
Tassilo Horn tass...@member.fsf.org writes:
As an aside, when playing around with quoting and unquoting, I
noticed that the result of ('+ 3 5) is 5. I'm not sure what I would
have expected (maybe an error?) but it wasn't the third item of the
list. Is there any reason for this?
Symbol
On Thu, Mar 15, 2012 at 12:21 PM, David Nolen dnolen.li...@gmail.com wrote:
It has nothing to do w/ qualified or not qualified, namespaces or anything
else. In some programs you may want to freely mix functions and relations.
But that's what namespaces are for in Clojure, yes?
Seems like this
On Thu, Mar 15, 2012 at 4:28 PM, David Nolen dnolen.li...@gmail.com wrote:
On Thu, Mar 15, 2012 at 4:21 PM, Sean Corfield seancorfi...@gmail.comwrote:
On Thu, Mar 15, 2012 at 12:21 PM, David Nolen dnolen.li...@gmail.com
wrote:
It has nothing to do w/ qualified or not qualified, namespaces
On Thu, Mar 15, 2012 at 1:28 PM, David Nolen dnolen.li...@gmail.com wrote:
On Thu, Mar 15, 2012 at 4:21 PM, Sean Corfield seancorfi...@gmail.com
wrote:
(require '[clojure.core.logic :as ?])
(?/run [q] ;; instead of run*
(?/cons 1 q (cons 1 [2 3]))) ;; instead of (conso 1 q (cons 1 [2 3]))
On Thu, Mar 15, 2012 at 2:04 PM, Sean Corfield seancorfi...@gmail.com wrote:
And why is it run* and not run?
There is run, but `run` takes an extra argument `n` and will solve for
only `n` results while `run*` solves for all.
Also, core.logic is essentially a faithful port of miniKanren and
On Thu, Mar 15, 2012 at 5:16 PM, Baishampayan Ghose b.gh...@gmail.comwrote:
On Thu, Mar 15, 2012 at 2:04 PM, Sean Corfield seancorfi...@gmail.com
wrote:
And why is it run* and not run?
There is run, but `run` takes an extra argument `n` and will solve for
only `n` results while `run*`
On Thu, Mar 15, 2012 at 2:16 PM, Baishampayan Ghose b.gh...@gmail.com wrote:
There is run, but `run` takes an extra argument `n` and will solve for
only `n` results while `run*` solves for all.
Ah, OK. That makes sense. Perhaps that could be added to the primer?
(just curious: why not run-all?)
On Thu, Mar 15, 2012 at 5:41 PM, Sean Corfield seancorfi...@gmail.comwrote:
On Thu, Mar 15, 2012 at 2:16 PM, Baishampayan Ghose b.gh...@gmail.com
wrote:
There is run, but `run` takes an extra argument `n` and will solve for
only `n` results while `run*` solves for all.
Ah, OK. That makes
Hi,
I releases two simple clojure libraries to help running commands
via SSH on multiple servers. Hopefully someone will find it useful.
http://info.rjmetrics.com/blog/bid/54114/Parallel-SSH-and-system-monitoring-in-Clojure
https://github.com/RJMetrics/Parallel-SSH
Righto, I'll add this to the discussion.
On Thursday, 15 March 2012 21:53:51 UTC, David Nolen wrote:
On Thu, Mar 15, 2012 at 5:41 PM, Sean Corfield seancorfi...@gmail.comwrote:
On Thu, Mar 15, 2012 at 2:16 PM, Baishampayan Ghose b.gh...@gmail.com
wrote:
There is run, but `run` takes an
Actually, sorted-map-by does behave the same way, but in your example you
tried to lookup a value instead of a key:
user (def m (sorted-map-by #( (%1 0) (%2 0)) [1 :a] [2 :b]))
#'user/m
user (get m [1 :foo])
[2 :b]
It looks like
Almost, but you do need to resolve the symbols to functions when you
evaluate the operation:
(defn arith [x y]
(map (fn [op] [((resolve op) x y) (list op x y)]) '[+ - / *]))
Regards,
Stuart
On 16 March 2012 02:52, Jack Moffitt j...@metajack.im wrote:
If I apply the following function to 4
It's been a while since we cut a core.logic release. Some small
enhancements as well as a bug fix which was affecting Kibit,
https://github.com/jonase/kibit/
Cheers,
David
Enhancments
* Allow retraction of facts
Fixed
* LOGIC-32: fix unification with sets
* LOGIC-29: fix defrel bug
It's not a problem with Clojure, it's also how Java behaves.
For sorted-sets to work properly, your comparator *must* satisfy the
trichotomy property of orderings.
Consider a comparison predicate less?. The trichotomy property states that
for all x,y, exactly one of the following hold:
(less? x
And this is exactly as it should be. The sorted set has no way to
compare items other than by your comparator. If it just arbitrarily
decided to use = instead of checking that (zero? (compare x y)) it
would not be using your comparator.
Note also that the behavior of contains? is consistent with
Ha~! :) :)
在 2012年3月13日星期二UTC+8下午12时50分06秒，Cedric Greevey写道：
On Mon, Mar 12, 2012 at 11:09 PM, jaime xiejianm...@gmail.com wrote:
Is there any materials to introduce how to setup emacs env for a
beginner?
Yes, this single word:
Don't.
:)
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You received this message because you
Thanks David, and Jonas!
Ambrose
On Fri, Mar 16, 2012 at 7:30 AM, David Nolen dnolen.li...@gmail.com wrote:
It's been a while since we cut a core.logic release. Some small
enhancements as well as a bug fix which was affecting Kibit,
https://github.com/jonase/kibit/
Cheers,
David
There is a clojure-control:
https://github.com/killme2008/clojure-control
2012/3/16 Chris McBride cmm7...@gmail.com
Hi,
I releases two simple clojure libraries to help running commands
via SSH on multiple servers. Hopefully someone will find it useful.
Wow, nice work Nathan!
Ambrose
On Thu, Mar 15, 2012 at 5:08 AM, Nathan Sorenson n...@sfu.ca wrote:
I've modified the output of the ClojureScript compiler to emit Scheme
code. At this point the core library is successfully compiled by Gambit
Scheme. A nice advantage of this is that Gambit
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