On 01/28/2017 11:19 PM, Bahman Movaqar wrote:
> I've been playing around `srfi-41` for an hour now. It seems to me,
> that regardless of the operations on the stream, the `head` doesn't
> advance. For example:
>
> (define my-stream (list->stream '(0 1 2 3)))
>
ced by 2.
But this fails:
(assert (equal? (stream-car my-stream) 2))
And of course, upon further investigation, the head hadn't moved an inch
after `take` or `car`. What am I missing?
Thanks,
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ision 243481]
Installation? YES
Tests? YES
Eggs? YES
Great job!
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gcc (Ubuntu 4.8.4-2ubuntu1~14.04.1) 4.8.4
Installation works?: yes
Tests work?: yes
Installation of eggs works?: yes
Excellent job people!
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he full log of egg installation.
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retrieving ...
connecting to host "chicken.kitten-technologies.co.uk", port 80 ...
req
(0x7fdfd8d6a000)
> libdl.so.2 => /usr/lib/libdl.so.2 (0x7fdfd8b66000)
> libc.so.6 => /usr/lib/libc.so.6 (0x7fdfd87c5000)
> /lib64/ld-linux-x86-64.so.2 (0x7fdfd9740000)
>
Have you set `CHICKEN_PREFIX` and `CHICKEN_REPOSITORY` to point to the
new
Following Geiser's giude[1], Emacs[2] keeps complaining with Symbol's
function definition is void: state when doing `run-geiser`.
Is this an issue with this version of Emacs or am I missing something?
[1] http://www.nongnu.org/geiser/
[2] Emacs 24.5.1
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On 02/01/2015 03:57 AM, Bahman Movaqar wrote:
A naive question but suppose I want to write an application (not an
egg); an application in the sense that it will not be installed in
CHICKEN repository.
What is the recommended directory structure? How can I run the tests
(like 'chicken-install
The default Inferior Scheme mode in Emacs is really not the best REPL
experience possible. I wonder if you people are using slime egg[1] and
if yes, how do you find it?
Or are there any other options besides them?
[1] http://wiki.call-cc.org/eggref/4/slime
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interested.
Thanks for sharing this with me. I am already using chicken-scheme but
haven't tried geiser yet; I'll definitely keep an eye on it and if I
find some free time I'll give it a go.
On 31 Jan 2015 06:12, Bahman Movaqar bah...@bahmanm.com
mailto:bah...@bahmanm.com wrote:
The default
? Or is it
just *my* conception of application and in CHICKEN there is no
difference between this and an egg?
I'd appreciate any help or a pointer to a relevant documentation.
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doesn't start
complaining about history-install-file-manager being unbound[2]. I'm
sure '.csi.history' exists and RW by my user.
What am I doing wrong? TIA,
[1] http://wiki.call-cc.org/eggref/4/readline#examples
[2] http://pastebin.com/LZ7hAqUU
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On 01/31/2015 02:21 AM, Bahman Movaqar wrote:
I just compiled and installed CHICKEN 4.9.0.1 on a virtual machine
(Ubuntu 64bit).
Then installed 'libreadline-dev' (apt-get), followed by 'readline' egg
(chicken-install).
Importing readline works just fine in csi (use readline). However, when
On 01/23/2015 07:25 PM, Peter Bex wrote:
On Fri, Jan 23, 2015 at 07:17:17PM +0330, Bahman Movaqar wrote:
I strongly disagree with using CHICKEN for the website. Let's keep
things simple by using the right tool for the job.
I think you're mixing up two things. One is the tool to generate
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On 01/07/2015 06:50 PM, Alex Charlton wrote:
Bahman Movaqar writes:
I have a record type, SOME-RT, and am implementing operations for it. As
a habit, I keep putting an 'assert' expression at the beginning of each
procedure.
(define (some-rt-some-op param1)
(assert (some-rt? param1
. Is this the
approach you seasoned CHICKEN'ers would take as well? TIA,
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is, correctly, a list of lists.
(zip lis1 lis2) - ((1 10) (2 20))
However I need to pass the result of zip as 2 separate lists to
foobar; I need to *un-list* it.
(foobar (1 10) (2 20))
Is there any standard way to do that? TIA,
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On 01/05/2015 09:37 PM, Patrick Li wrote:
Hi Bahman.
apply is the standard way of doing what you're looking for.
Thank you!
On Mon, Jan 5, 2015 at 10:25 AM, Bahman Movaqar bah...@bahmanm.com
mailto:bah...@bahmanm.com wrote:
Happy 2015 CHICKEN'ers!
I have a procedure which
of performance
and being idiomatic?
TIA,
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...the following will fail where it should pass because test
expects an identical value to pass.
(test #t (member a-thing list-of-things))
So how would you go around this?
Bahman Movaqar writes:
I need to check if a list contains an element. There are 2 approaches as
far as I could gather
On 01/05/2015 10:44 PM, Alex Charlton wrote:
I’d use test-assert with member: http://api.call-cc.org/doc/test/test-assert
Thank you!
Sometimes the quality of my questions is embarrassing :-)
Bahman Movaqar writes:
On 01/05/2015 10:26 PM, Alex Charlton wrote:
Just use member. Member
On 12/27/2014 05:30 PM, Christian Kellermann wrote:
* Bahman Movaqar bah...@bahmanm.com [141227 13:51]:
Consider the following snippet:
(use srfi-1)
(define (mutator lis n) (set! (first lis) n) lis)
(define ll (list 1 2 3 4))
(mutator (cdr lis) 100)
(equal? (second? lis) 100) -- #t
Consider the following snippet:
(use srfi-1)
(define (mutator lis n) (set! (first lis) n) lis)
(define ll (list 1 2 3 4))
(mutator (cdr lis) 100)
(equal? (second? lis) 100) -- #t
Is there anyway to protect lis from mutation? TIA,
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Merry Christmas and happy new year.
With best of wishes for CHICKEN'ers and their families from ancient Iran.
Bahman
div Original message /divdivFrom: Felix Winkelmann
felix.winkelm...@bevuta.com /divdivDate:24/12/2014 16:10 (GMT+03:30)
/divdivTo: chicken-users@nongnu.org
I'm curious to know why nil is not defined in CHICKEN and one has to
use '() instead? TIA,
PS: Or am I missing something ridiculously obvious!?
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Reading on lazy-seq [1]; what exactly does the following piece of code do?
(let foo ((x 10))
(* x x))
TIA,
[1] http://wiki.call-cc.org/eggref/4/lazy-seq
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On 12/17/2014 01:31 AM, Daniel Leslie wrote:
It is a named let, details here:
http://www.ccs.neu.edu/home/dorai/t-y-scheme/t-y-scheme-Z-H-1.html#node_toc_node_sec_6.2
Thanks Daniel. Exactly what I was looking for.
On 16 Dec 2014 13:58, Bahman Movaqar bah...@bahmanm.com
mailto:bah
On 12/15/2014 07:49 PM, Mario Domenech Goulart wrote:
Hi,
On Mon, 15 Dec 2014 11:22:29 +0330 Bahman Movaqar bah...@bahmanm.com wrote:
Has anyone recently managed to install combinatorics [1]?
chicken-install (truely) keeps complaining about cock egg not exisiting.
bahman@hamun:~/Work
Thanks for the information Christian.
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On 12/14/2014 12:09 PM, Christian Kellermann wrote:
* Bahman Movaqar bah
On 12/14/2014 12:15 PM, Christian Kellermann wrote:
* Bahman Movaqar bah...@bahmanm.com [141214 00:49]:
I'm working on a simple project which I created using chicken-hatch.
Thanks to the author of this egg, all's fine and going smoothly.
However, I just wonder if there is a way to clean up
]? Or is it conventional to just let the function fail and
catch the error somewhere else (probably in a top-level function)?
[1] This quickly leads to dirty and not-easy-to-read code.
What say you seasoned schemers on this?
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https
read include docs
(http://api.call-cc.org/doc/chicken/special-forms/include) to no avail.
TIA,
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, is a lot of work and you have to
do it really carefully. I hardly ever do this.
Never! :-)
Thanks for the detailed answer. Much appreciated.
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How would a seasoned Schemer access the nth element of a list? (drop)?
Does it have any performance penalty?
TIA,
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a performance penalty.
You can use vectors instead of list if you want to access/modify
elements in constant time. If you need a vector that can dynamically
grow take a look at the dyn-vector egg:
http://wiki.call-cc.org/eggref/4/dyn-vector.
Bahman Movaqar writes:
How would a seasoned Schemer access
doing wrong?
TIA,
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it is choking on run.scm which is a very
simple file:
(use test)
(load ../misc)
(import misc)
(include misc-tests)
(load ../point)
(import point)
(include point-tests)
(test-exit)
good luck and no worries about 'spamming' the list.
Thanks!
Bahman Movaqar writes
On 12/14/2014 10:19 PM, John Cowan wrote:
Bahman Movaqar scripsit:
(use test)
(load ../misc)
(import misc)
(test-group misc
...
However when running `chicken-install -test` I get the following error:
Error: (import) during expansion of (import ...) - cannot
On 12/14/2014 08:44 PM, Bahman Movaqar wrote:
First of all, sorry for spamming the list :-)
So, I've got two modules:
;; misc.scm
(module misc
...)
;; point.scm
(load misc)
(module point
(...)
(import scheme chicken)
(use srfi-1 misc
Reading the docs on SRFI-99 [1], I need some help understanding what is
a variant type. Would someone please pass me a relevant link to read?
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understand it either :-)
On Mon, Dec 15, 2014 at 12:12 PM, Bahman Movaqar bah...@bahmanm.com
mailto:bah...@bahmanm.com wrote:
Reading the docs on SRFI-99 [1], I need some help understanding
what is
a variant type. Would someone please pass me a relevant link to
read?
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/hint. TIA,
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and other compilation left-over stuff.
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What is the idiomatic way of replacing the nth element in a list
*without* mutating the list? Is the combination of take and
take-right the right way to do it?
TIA,
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Thanks Daniel and John.
I found split-at while reading the docs last night. Along with
let-values it seems like a natural answer to my questions. What do you
folks think?
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