To force realisation of a sequence, use one of the do* forms.
https://clojure.github.io/clojure/clojure.core-api.html#clojure.core/do
If you post a gist of your code then someone may be able to give more specific
guidance.
Daniel.
On 8/07/2014, at 2:15 pm, Glen Rubin rubing...@gmail.com
You could try running:
export MY_VAR=foo
bash -c 'echo $MY_VAR'
And see if that comes with the same result. You might also want to make
sure you're not using a pre-loader like Drip.
You can use Java system properties to do per environment/machine config as
well.
I wrote a library a
Sorry for the delay, I just saw this thread now.
I used https://github.com/cemerick/valip
A version of https://github.com/weavejester/valip by Chas Emerick which can be
used for both client and server side validation. You could eventually take a
look at the way I used from here on:
Hi
I was trying to teach myself core.async and tried the rock, paper, scissors
example found here:
http://tech.puredanger.com/2013/07/10/rps-core-async/
See a gist here:
https://gist.github.com/endbegin/b10be6d7a3ba5f6c29db
Really, the main difference is in the :require statement at the top,
Sometimes you have to manually stamp out laziness, for this among other reasons.
In some cases I apply the list function to do this:
= (str (map inc (range 10)))
clojure.lang.LazySeq@c5d38b66
= (str (apply list (map inc (range 10
(1 2 3 4 5 6 7 8 9 10)
-Lee
On 8 July 2014 09:49, Glen
That's not your problem. From (doc str):
With more than one arg, returns the concatenation of the str values of the
args.
The str value of a lazy sequence is something like:
clojure.lang.LazySeq@386e0460
which is the result of (.toString your-seq)
What you probably want is something like
Mark, creating separate versions of the Clojure cheat sheet that link to
Grimoire instead of ClojureDocs.org should be fairly straightforward, but
due to other work I won't get to it for at least a few days. If someone
else is interested, and not put off by my code, they are welcome to go for
it
If we think that Grimoire should be the official ClojureDocs replacement,
why don't we do that? Could we just host Grimoire under the clojuredocs.org
domain, perhaps structuring the URLs to match?
One thing that I couldn't see - does Grimoire offer an API to get access to
the examples?
On 8
On Tue, Jul 8, 2014 at 3:28 AM, Colin Fleming colin.mailingl...@gmail.com
wrote:
If we think that Grimoire should be the official ClojureDocs replacement,
why don't we do that? Could we just host Grimoire under the
clojuredocs.org domain, perhaps structuring the URLs to match?
Depends upon
when i run lein install
lein install
Compiling zilch.mq
Exception in thread main java.io.FileNotFoundException: Could not locate
zilch/mq__init.class or zilch/mq.clj on classpath:
at clojure.lang.RT.load(RT.java:432)
at clojure.lang.RT.load(RT.java:400)
at
On Tue, Jul 8, 2014 at 7:39 AM, zhenxuanpan zhenxuan...@gmail.com wrote:
when i run lein install
lein install
Compiling zilch.mq
Exception in thread main java.io.FileNotFoundException: Could not locate
zilch/mq__init.class or zilch/mq.clj on classpath:
at clojure.lang.RT.load(RT.java:432)
I could guess that the problem is in the dot in the project name.
Could you try to change it to zilch-mq or zilchmq and test?
Plínio
On Tue, Jul 8, 2014 at 8:39 AM, zhenxuanpan zhenxuan...@gmail.com wrote:
when i run lein install
lein install
Compiling zilch.mq
Exception in thread main
apache/storm, I compile at A,B machine, A machine success,B machine report
this error
在 2014年7月8日星期二UTC+8下午8时12分48秒，Tim Visher写道：
On Tue, Jul 8, 2014 at 7:39 AM, zhenxuanpan zhenx...@gmail.com
javascript: wrote:
when i run lein install
lein install
Compiling zilch.mq
Exception
在 2014年7月8日星期二UTC+8下午7时39分51秒，zhenxuanpan写道：
when i run lein install
lein install
Compiling zilch.mq
Exception in thread main java.io.FileNotFoundException: Could not locate
zilch/mq__init.class or zilch/mq.clj on classpath:
at clojure.lang.RT.load(RT.java:432)
at
I am new to clojure and finding it great.. :)
I came across a paper - Why functional programming matters ?
at www.cs.kent.ac.uk/people/staff/dat/miranda/whyfp90.pdf
to quote it :
This paper is also relevant to the present controversy over lazy
evaluation.
Some believe that functional
I came across this article :
http://maryrosecook.com/blog/post/the-fibonacci-heap-ruins-my-life
The user says that he can not use fibonacci heaps efficiently in clojure
because since the memory location of nodes changes, it is not possible to
have a pointer to the nodes to get faster access to
In Clojure you can define a local constant with let, but I need a variable
(I think).
I want to do the following. I have a function that checks several things.
Every time an error is found I want to set the variable errors to:
(concat errors new-error)
Is this possible? Or is there a better
On 8 July 2014 at 17:40:49, Cecil Westerhof (cldwester...@gmail.com) wrote:
In Clojure you can define a local constant with let, but I need
a variable (I think).
They are not constants. Locals can be overwritten but their data structures
are immutable (by default).
I want to do the
you can make that variable error as an Agent and change it asynchronously
or as a Ref if you want the change synchronously. other part of the code
remains same.
On Tuesday, 8 July 2014 19:10:54 UTC+5:30, Cecil Westerhof wrote:
In Clojure you can define a local constant with let, but I need a
Abstract topics like this are interesting, but you may be better off
starting a discussion at a more generic venue like /r/programming, because
it isn't really specific to Clojure. I would assume that pervasive laziness
would greatly complicate interop with hosts like the JVM.
On Tuesday, July
On Tuesday, July 8, 2014 9:40:54 AM UTC-4, Cecil Westerhof wrote:
In Clojure you can define a local constant with let, but I need a variable
(I think).
I want to do the following. I have a function that checks several things.
Every time an error is found I want to set the variable errors
James,
It appears Sean and yourself have identified the issue. The tmux scripts
that launch my dev environment don't pull in the necessary environment.
I have seen your environ library and I was to thank you for all your
contributions. Sean too!
While I have you James do you have a good
Laziness is a useful property, but it is not without its disadvantages,
particularly in terms of predictable performance. For example, code
involving lazy seqs is more prone to memory leaks than iterators are.
Eager evaluation is a simpler approach, in terms of both code and
predictability. Eager
I use an upstart script like:
description Some description
author Your name
start on startup
stop on shutdown
setuid deploy
chdir /deploy
console log
env PORT=4000
exec java -jar uberjar-name.jar
In the above case, I deploy to the /deploy directory, and execute the jar
using a non-privileged
2014-07-08 16:55 GMT+02:00 John Gabriele jmg3...@gmail.com:
On Tuesday, July 8, 2014 9:40:54 AM UTC-4, Cecil Westerhof wrote:
In Clojure you can define a local constant with let, but I need a
variable (I think).
I want to do the following. I have a function that checks several things.
Awesome thank you!
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I recently released updates for Nightcode (a Clojure IDE) and Nightmod (a
Clojure game tool).
Nightcode https://nightcode.info/ has mostly received maintenance
updates, because the main priority is being beginner-friendly rather than
featureful. I finally added support for evaling a selected
On Tue, Jul 8, 2014 at 11:38 AM, Cecil Westerhof cldwester...@gmail.com wrote:
I al-ready tried something along those lines:
(defn error-in-datastruct-p []
(let [errors (atom ())]
(if (= (count objects) (count *object-locations*))
(map (fn [x]
(println
On Tuesday, July 8, 2014 11:38:42 AM UTC-4, Cecil Westerhof wrote:
2014-07-08 16:55 GMT+02:00 John Gabriele jmg...@gmail.com javascript::
On Tuesday, July 8, 2014 9:40:54 AM UTC-4, Cecil Westerhof wrote:
In Clojure you can define a local constant with let, but I need a
variable (I
That was sort of a royal we, the community. I think everyone probably
agrees that it's not in anyone's interest to have two separate clojure doc
sites serving essentially exactly the same purpose (docs + examples). It
looks like Zachary is working fairly actively on his new ClojureDocs
version, is
Clojure doesn't have lazy evaluation because it is a few years younger
and didn't want to repeat Haskell's mistake. Even Simon Payton Jones, the
creator of Haskel, confessed that, if he would make Haskel again, he would
make it strict, and not lazy, but that it's too late to change it.
--
You
2014-07-08 18:20 GMT+02:00 Marko Kocić ma...@euptera.com:
Clojure doesn't have lazy evaluation because it is a few years younger
and didn't want to repeat Haskell's mistake. Even Simon Payton Jones, the
creator of Haskel, confessed that, if he would make Haskel again, he would
make it strict,
2014-07-08 18:14 GMT+02:00 John Gabriele jmg3...@gmail.com:
On Tuesday, July 8, 2014 11:38:42 AM UTC-4, Cecil Westerhof wrote:
2014-07-08 16:55 GMT+02:00 John Gabriele jmg...@gmail.com:
On Tuesday, July 8, 2014 9:40:54 AM UTC-4, Cecil Westerhof wrote:
In Clojure you can define a local
Also, just a matter of style, but it's customary to leave closing parens
at the end of a line, rather than by themselves on their own line.
I do that also, but when I am editing I put them on there own line,
because in this way changes are faster. When I am satisfied, I merge them.
;-)
I searched for this as well, and found this:
http://www.cs.nott.ac.uk/~gmh/appsem-slides/peytonjones.ppt
Purity is more important than, and quite independent of, laziness
and
The next ML will be pure, with effects only via monads. The next Haskell
will be strict, but still pure.
On 8 July
1) doesn't make a whole lot of sense. I'm an adherent to the simplest
thing that could possibly work philosophy, and as a result Grimoire is
entirely static HTML. Search and symbol quick access could be
implemented by adding some javascript, but that's a low priority item at
the moment as there
Not as such. Strictly speaking one can navigate to say
https://github.com/arrdem/grimoire/edit/master/_includes/1.4.0/clojure.core/DASH/examples.md
and find all the examples for what is in this case clojure.core/-.
However there is no examples API at present and due to the flat file
nature of
I am working on a small personal project and want to use/learn nginx and
clojure as the web backend. Unfortunately I am bogged down my the
installation instructions.
I have Nginx running and serving html on a Linode instance, I just don't
know enough about it's plugins to do step 1.1
Is there any documentation or do you have thoughts on choosing between
using multimethods vs case? I assume they both do constant time dispatch.
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Brendan, could you please elaborate on how you handled client/server
communication with a project using Reagent/Om?
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On Jul 8, 2014, at 9:40 AM, Cecil Westerhof cldwester...@gmail.com wrote:
In Clojure you can define a local constant with let, but I need a variable (I
think).
I want to do the following. I have a function that checks several things.
Every time an error is found I want to set the
Use multimethods if you want to open the system up for later extension
(by a library user, for example).
Elric Erkose mailto:elric.erk...@gmail.com
July 8, 2014 at 2:02 PM
Is there any documentation or do you have thoughts on choosing between
using multimethods vs case? I assume they both do
No, that's the name of a namespace - zilch is the library, and it has an
mq namespace, I believe.
My guess is that it's a multi-module project and you're running lein
install from the root, instead of the appropriate submodule.
Plínio Balduino mailto:pbaldu...@gmail.com
July 8, 2014 at 6:39
2014-07-08 23:11 GMT+02:00 Bob Hutchison hutch-li...@recursive.ca:
On Jul 8, 2014, at 9:40 AM, Cecil Westerhof cldwester...@gmail.com
wrote:
In Clojure you can define a local constant with let, but I need a
variable (I think).
I want to do the following. I have a function that checks
I received the book land of lisp as a gift. I am trying to translate it to
Clojure. In chapter 5 there is a text game engine. In the attachment my
translation. What do you think of it?
There are a few problems.
- The book displays all the lines of a look on separate lines. In my case
it is just
Hi Cecil,
You might want to check out this
https://github.com/quux00/land-of-lisp-in-clojure
Cheers,
Bruce
On Wed, Jul 9, 2014 at 9:49 AM, Cecil Westerhof cldwester...@gmail.com
wrote:
I received the book land of lisp as a gift. I am trying to translate it to
Clojure. In chapter 5 there is
On Jul 8, 2014, at 7:08 PM, Cecil Westerhof cldwester...@gmail.com wrote:
2014-07-08 23:11 GMT+02:00 Bob Hutchison hutch-li...@recursive.ca:
On Jul 8, 2014, at 9:40 AM, Cecil Westerhof cldwester...@gmail.com wrote:
In Clojure you can define a local constant with let, but I need a
I am still having difficulties with this, so let me clarify by showing some
sample code.
My fn looks like this:
(defn report [text]
(str
string1
string2
(apply str (map-indexed (fn [idx itm] (time-text idx itm)) (filtered-list
text))
When I invoke spit in order to output a text
A few notes:
Prefer vectors over quoted lists '(1 2) vs [1 2]. There's rarely a case
(outside of macros) that you want the former.
Instead of quoted lists of symbols: '(You cannot get that.) try strings
You cannot get that
Don't use defs inside defs. Instead move the defs to a global position
Hi Glen,
You haven't really provided what we would need to replicate your problem.
Specifically:
- You call but don't provide definitions for address or is-blank?
- You refer to unbound symbols some-string and another-string.
- You don't provide an input for report, or the top-level call you
Hi Cecil,
Cecil Westerhof cldwester...@gmail.com wrote:
- The book displays all the lines of a look on separate lines. In my
case it is just one long line. Am I doing something wrong?
No, you're not doing anything wrong. There's nothing in that data
structure which would inherently cause it to
Just tried it with Clojure 1.6.0. Still no luck!
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Thanks Lee. You are correct there is something wrong with my input to this
function that is causing the problem, not the function. Sorry for the
error.
On Tuesday, July 8, 2014 8:13:36 PM UTC-7, Lee wrote:
Hi Glen,
You haven't really provided what we would need to replicate your
On Tue, Jul 08, 2014 at 08:39:30PM +0200, Colin Fleming wrote:
I searched for this as well, and found this:
http://www.cs.nott.ac.uk/~gmh/appsem-slides/peytonjones.ppt
Purity is more important than, and quite independent of, laziness
and
The next ML will be pure, with effects only via
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