Em Sáb, 2009-03-28 às 13:36 +0300, Richard Hainsworth escreveu:
> Daniel Ruoso wrote:
> > The thing is that junctions are so cool that people like to use it for
> > more things than it's really usefull (overseeing that junctions are too
> > much powerfull for that use
nothing" in Perl6, but I'll
> guess that undef can serve the purpose, since I can't think of a
> useful use of undef as part of a Junction.
Well, you return nothing simply by calling "return;" it will produce an
empty capture, which could be seen simply as ().
daniel
meters normally provided by the default signature (i.e.,
> *...@_ and *%_)? I'm guessing not.
Yes, it does. The default signature is the *default*. Having placeholder
parameters imply defining a signature, one could argue that *...@_ and *%_
are still part of that generated signature, but @_ certainly won't
contain the values that were in the placeholder parameters.
daniel
Em Qua, 2009-04-01 às 05:41 -0700, Jon Lang escreveu:
> On Wed, Apr 1, 2009 at 5:07 AM, Daniel Ruoso wrote:
> > The concept of "invocant" only exists in terms of syntax now. In runtime
> > the invocant is simply the first positional argument. This simplifies
> >
lve? I mean, what is so
bad about SQL? and how does Muldis D solves it?
Honestly, it feels weird to me that you propose a query as simple as
SELECT 1
turning itself into a function declaration, with a lot of boilerplate
around...
daniel
#x27;t easily distinguish,
In fact, i really think there isn't a sane way of distinguishing...
lifting really means looking up from the perspective of the caller, so
you see what the caller sees, so no need for $a and $b to be context...
daniel
[.prime] works is because the method-call
> syntax will call an ordinary non-member sub also."
> I think this is no longer the case (and hasn't been for some time).
It is no longer the case. I was about to send a mail about this... so
I'll just make sure that is noticed ;)
daniel
is fantastic... it's really awesome how you got into the guts
of Perl 6 while still preserving brevity and clarity...
daniel
Em Qui, 2009-05-21 às 21:33 -0300, Daniel Ruoso escreveu:
> my @x = map { $_ * 2 for 1,2,3 }, 1,2,3;
> say @x[0]; # 1;
> say @x[0;0]; # ERROR
> say @x[1]; # 1;
> say @x[1;0]; # ERROR
er... there should be a 2 as output of the fourth line there...
daniel
ide, "$_ when prime($_)" looks more natural than "do $_ if
prime($_)"
daniel
is mine),
That's because dot is an operator as well and might be subject to be
overriden... but don't tell anyone that...
daniel
Em Sex, 2009-05-22 às 18:27 -0500, John M. Dlugosz escreveu:
> Daniel Ruoso wrote:
> > That's because dot is an operator as well and might be subject to be
> > overriden... but don't tell anyone that...
> You mean by installing a different dispatcher for the object? By
)
> @A is BOUND TO a list container of type Array.
> my $y := @A;
> $y is BOUND TO the Array, same as @A is.
Again,
binding to a variable is an operation in the lexpad, much the same way
as:
%a := 1;
is an operation in the hash itself, not in that specific cell of the
hash.
daniel
Hello,
I really like POD and I like the changes in the upcoming Perl 6 Pod.
Have you ever heard of literate programing? (see Wikipedia). I think it
would be neat if Pod could do literate programing. It is already very
close. For reference, please see this article:
For reference, please see
at it is
perfectly reasonable to make this a separate module. How would it work?
Daniel.
er it makes sense to alter the
language because of this. You are the language experts. I just wanted to
raise a likely point of confusion among users.
Cheers,
Daniel.
othing. I simply raised a point of confusion and I can prove
that it is a point of confusion because someone who does know about Perl
6 got confused. But what to do about it is something I leave to the experts.
Daniel.
ms" doesn't appear in the documentation. Instead,
whoever writes the docs should use @foo.keys and @foo.kv. Those are
*very* clear, and they do the right thing.
Daniel.
regex-dna benchmarks. You
use regexes to analyze DNA code. Currently Rakudo is very slow at it,
but that's not surprising at this stage.
http://daniel.carrera.bz/_2009/perl/shootout-perl6-2009.05.27.tgz
Cheers,
Daniel.
Daniel Carrera wrote:
http://daniel.carrera.bz/_2009/perl/shootout-perl6-2009.05.27.tgz
To run the benchmark:
perl6 regex-dna.p6.pl < regex-dna.input
On my computer it takes about 99s to run on Rakudo, compared to 0.18s
for Perl 5 (the Perl 5 benchmark is included in the .tgz f
g" state. And a scheduler that
takes this continuations and assign to the "worker threads", while you
can use a command line switch to control the minimum/maximum number of
worker threads as well as the parameter for when to start a new worker
thread and when to deactivate it...
Well, this is my current view on the state of affairs, and is thougth a
lot in the context of SMOP, so it would be really interesting to have
some feedback from the parrot folks...
daniel
Perl 6 code snippets, we all know there are
several, and I really would like to give people some idea of why Perl 6
is so cool.
I started a page in the Perl 6 wiki for that:
http://www.perlfoundation.org/perl6/index.cgi?amazing_perl_6
daniel
Hi Daniel,
Sounds very interesting. Can you post slides? It'd be cool if the talk
was taped, like the Google tech talks. Will it be in English? I don't
speak Portuguese (I do speak Spanish and some German).
I'm planning to do a presentation to highlight the most impressive
as
Em Qua, 2009-05-27 às 18:46 +0200, Daniel Carrera escreveu:
> Hi Daniel,
Hi Daniel, :P
> Sounds very interesting. Can you post slides? It'd be cool if the talk
> was taped, like the Google tech talks. Will it be in English? I don't
> speak Portuguese (I do speak Spanish
Daniel Ruoso wrote:
I know this is not the approach you had in mind, but what do you think?
Well, you really made me realize that I'm looking for things that make
me impressed, and probably I don't get impressed that easy nowadays ;)
I understand. Your experience with Perl 6 makes
postfix: myself, but the rest is obscure to me.
I do think captures are inherently impressive, but not easy to explain...
Got a link?
Daniel.
Daniel Carrera wrote:
sub postfix: { [*] 1..$^n }
say 5!;
WOW!! That *IS* cool. Can you explain to me how it works? I figured out
postfix: myself, but the rest is obscure to me.
Here is another idea: Is it possible to declare a circumfix function
that calculates the magnitude of a vector
, [*] generates their product, etc.
Wow... That's a foldl! In a functional language, that would be called a
fold. It's very popular in Haskell.
I like that Perl 6 seems to be taking steps in the direction of
functional languages. First lazy lists (0..Inf) and now a fold. :-D
Daniel.
m is not just
from Haskell. I've seen it elsewhere. If you had said "inject" I
wouldn't have known what you meant.
Daniel.
t. Haskell does that too, but I don't know if you can make
the function a postfix in Haskell.
Daniel.
d be prettier if it was lazy...
for 2..* -> $n {
(, "bon" xx $n, "digi" xx $n).join(", ")
} ==> $*OUT;
Or put that into an array for more controlled fun...
my @a <== map {
(, "bon" xx $n, "digi" xx $n).join(", ")
}, 2..*;
say @a[5];
But that still doesn't run in rakudo, since it doesn't support lazyness
yet...
daniel
Larry Wall wrote:
$dot_product = <@vector1,@vector2>;
Is that possible? That would be uber-cool.
More likely just use
sub infix:<·> (@a,@b) { ... }
$dot_product = @vector1 · @vector2;
Thanks.
And for Daniel R. and other observers, how about this:
# Courtesy of Lar
how the same thing written in
Java. >;-)
It might be appropriate to compare some examples with Ruby or Python.
Daniel.
1" is a readonly value,
not a container, so you can't store into it.
Of course this is the theoretical model, and implementations should
optimize whenever they can...
daniel
2, 3
isn't a prefix, but a [ ] meta with + inside and the list as argument...
daniel
new CPAN format.
5. We can port Software::Package to Perl 6 and package them as a way to
test the new CPAN format with Perl 6.
...
What do you think?
Daniel.
Em Qui, 2009-05-28 às 16:18 +0200, Daniel Carrera escreveu:
> Hello all,
> There was some talk on IRC about a new version of CPAN to match the new
> version of Perl.
I just wanted to point out some previous conclusion on this issue.
What currently we generically name "CPAN" i
Em Qui, 2009-05-28 às 09:27 -0500, John M. Dlugosz escreveu:
> Daniel Ruoso daniel-at-ruoso.com |Perl 6| wrote:
> > Em Qui, 2009-05-28 às 00:24 -0500, John M. Dlugosz escreveu:
> >> Please see <http://www.dlugosz.com/Perl6/web/info-model-1.html>
> >> and talk to
F) In summary, we have a possible course of action:
There is a lot more structurally problematic. Please read one of my
papers on the cpan6.org website.
I have scanned through the first one. It's 30 pages...
Daniel.
Jonathan Scott Duff wrote:
See http://perlcabal.org/syn/S11.html#Versioning
Yeah, I reached that part earlier today (but after I sent my email). Thanks.
Daniel.
wrote that I hadn't yet read S11. The new CPAN needs
to handle all the metadata in S11.
use Whiteness:from;
So we have to give some thought to how the modules are going to be
stored in the system.
Daniel.
--
This message has been scanned for viruses and
dangerous content by Mail
ing I agree with. It seems smart to be able to download
the metadata before downloading the source tree. This allows dependency
resolution, searches, etc.
Daniel.
front reliably, that's
probably sufficient.
Yes.
Daniel.
Alex Elsayed wrote:
On Thursday 28 May 2009 4:54:50 pm Daniel Carrera wrote:
On the other hand, distributing Parrot bytecode (or PIR, or PASM) seems
fine. But I don't know what to suggest for modules that require a C
compiler.
The problem with that is that Rakudo isn't the
we may have trouble scaling that to cover all the
stuff that S11 says. I'm not saying it can't be done. I'm saying it
might be difficult, as we'd be using RPM and DEB in a way that they were
not intended.
Daniel.
is a one-way communication medium, so it is less likely to build
consensus (unless the paper itself was written through a consensus process).
Daniel.
Mark Overmeer wrote:
* Daniel Carrera (daniel.carr...@theingots.org) [090529 08:17]:
Workshops, Hackathons and YAPCs are more suitable.
But those venues are not available on a day-to-day basis.
At least, you get the time to discuss it in depth. Some even basic meta-
data issues are just too
). CPAN, because it has a large
enough organisation behind it, has a number of people behind it
empowered with keeping it going. People don't want to have to keep up
with the fashionable repos.
+1
Daniel.
Nicholas Clark wrote:
On Fri, May 29, 2009 at 02:43:13PM +0200, Mark Overmeer wrote:
* Daniel Carrera (daniel.carr...@theingots.org) [090529 11:42]:
"CPAN shall not piggyback another language" -- from ZCAN.
Judging from the ZCAN page, I don't expect that uploading Ruby modules
P and Perl5.
Perl 6 is the next version of Perl 5 and Perl 6 comes with a Perl 5
compatibility mode and Perl 6 is intended to be able to use Perl 5
modules. That makes Perl 5 different from PHP.
Daniel.
Em Sex, 2009-05-29 às 01:54 +0200, Daniel Carrera escreveu:
> Larry Wall wrote:
> > I support the notion of distributing binaries because nobody's gonna
> > want to chew up their phone's battery doing unnecessary compiles. The
> > ecology of computing devices is dif
or something
else that doesn't mean anything. "Comprehensive Peacock Archive
Network"? "Comprehensive Platypus Archive Network"?
Daniel.
Daniel Carrera wrote:
Btw, if the majority wants to start uploading Ruby, Python and Lua
modules to CPAN, we can rename CPAN so that the P stands for something
else that doesn't mean anything. "Comprehensive Peacock Archive
Network"? "Comprehensive Platypus Archive Network&
John Macdonald wrote:
On Fri, May 29, 2009 at 07:26:11PM +0200, Daniel Carrera wrote:
Btw, if the majority wants to start uploading Ruby, Python and Lua
modules to CPAN, we can rename CPAN so that the P stands for something
else that doesn't mean anything. "Comprehensive Peaco
n it. In other words, the Perl
guys will only maintain the Perl platforms. But the Lua guys are welcome
to get people together and administer a Lua platform on CPAN.
Just some ideas...
Daniel.
fo
4) Lastly, while we are at it, why don't we add a signature file to the
_par directory?
_par/
META.info
CHECKSUMS.asc
The CHECKSUMS.asc file would contain the SHA1 sums of every file in the
archive except for itself. The file could be GPG-signed with --armor
(.asc extension).
What do you think?
Daniel.
Daniel Carrera wrote:
4) Lastly, while we are at it, why don't we add a signature file to the
_par directory?
_par/
META.info
CHECKSUMS.asc
The CHECKSUMS.asc file would contain the SHA1 sums of every file in the
archive except for itself. The file could be GPG-signed
ecause in a new Parrot world, there is real opportunity for Perl and
Ruby to share libraries with each other (e.g. Perl on Rails). But when
you start talking about sharing holiday pictures, you have completely
left the Perl realm and I am completely turned off.
Daniel.
5 words are the main point of
his email (words are not created equal :) ).
Daniel.
the name everyone else already uses?
Daniel.
Em Sex, 2009-05-29 às 23:37 +0200, Daniel Carrera escreveu:
> Your idea of using CPAN to share holiday pictures is one of the things
> that really turned me off from your CPAN6 proposal.
If you replace "holiday pictures" by 'YAPC pictures', 'Talk slides&#
ally port Perl 5 modules (e.g. Software::Packager) and rewrite
the script to remove dependency on shell commands.
Think of it as a boot-strapping method.
What do you think?
Daniel.
an initial step. I don't believe in
working in isolation for days or weeks and then handing down a massive
ready-made solution to the masses. I offer a small, incremental step on
top of Synopsis 22 and hope that it is useful.
Daniel.
Em Sáb, 2009-05-30 às 22:54 +0200, Daniel Carrera escreveu:
> In the hopes of helping the CPAN discussion move forward, in the
> direction of tangible work, I have made a wiki page with a proposal:
> Please read the "Basics" section, which is quite short. The main point
>
Daniel Ruoso wrote:
The leap you make from the source package to the different binary
formats is overlooking a lot of details. It would be interesting if you
could take a look in the previous discussions on the matter.
I'll be happy to. I was just trying to make a small iterative st
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 ],
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 ]
]));
my @g = $game.generation(4);
say .perl for @g;
I guess my mindset is too much "imperative" for me to think in a more
elegant solution...
daniel
one can begin talking about a package format
and an installer, and then go from there.
So far the discussion has been productive and we have some code written
that we can experiment with. So I feel encouraged.
Daniel.
Digest::SHA.Parrot
Digest::SHA~C Digest::SHA~Parrot
What do you think?
If anyone can think of a symbol that is already used in Perl with a
similar meaning, please let me know.
Daniel.
Jon Lang wrote:
On Mon, Jun 1, 2009 at 5:44 PM, Daniel Carrera
wrote:
I think we might need to come up with some sort of standard naming
convention to distinguish dependencies. Something that the *user* can
recognize quickly when he browses CPAN.
Why do we need the dependencies to be part of
igest::SHA modules
I want to use for this particular program.
Suppose I want to install three versions of SHA. One in C, one in Perl,
one in Parrot. I need a way to specify in the "use" statement which one
I want.
Daniel.
ntics was a non-starter.
Daniel.
.
Daniel.
;t seem to run into "tenserity" problems on IRC, and I seem to be
much more productive there. I don't know why there is a difference
(different people? different topics? different medium?). But whatever
the reason, I think that I'll stay mostly on IRC, at least for now.
Daniel.
valid reasons why he might choose one option or
another. A SMOP user might install a module that uses C bindings, or one
that is all Perl. There are valid reasons why he might want one or the
other.
Daniel.
pect one would/could do:
>
> use SHA:from;
>
> (See the :from adverb in S11.)
That looks great. I didn't think of that. Perhaps it can be used for C
as well. We might have to abuse the :from a little to include the name
of the C bindings (if there is more than one option).
Daniel.
an language shootout to Perl 6. I figure this is a good place to
start because each benchmark is designed to test one specific aspect of
the language. I've only done a couple of benchmarks. If you are
interested, why don't you help me? Porting benchmarks is a good way to
learn Perl 6.
Cheers,
Daniel.
the benchmarks are well
designed, your page will be not only nice but also useful.
Daniel.
magic is *not* in the feed operator. The feed operator is simply a
capture constructor that fits well with slurpies.
So the questions are:
* Are there any imperative barriers in Perl 6?
* Does that mean we need to spec a common way of implementing
implicit-threading and implicit event-based programming?
daniel
[1]
http://www.nntp.perl.org/group/perl.perl6.language/2009/05/msg31682.html
king on the reverse-complement benchmark.
Cheers,
Daniel.
ctors.
I am interested in a tool that can benchmark both perl 5 and perl 6
natively.
If you write such a tool, I'd like to try it.
Daniel.
things to even
out.
I look forward to seeing your code.
Daniel.
Carl Mäsak wrote:
Aruna (>):
I tested the below code on parrot-1.1.0 and it read all the lines in the
file and tested same code on the latest git update (4th June 2009), it
outputs only the first line.
That's what C<$file.get> does -- it gives you one line per default.
You want C<$file.lines>.
ank line!!
Daniel.
seful.
http://daniel.carrera.bz/2009/06/rpn-calculator-in-perl-6/
Cheers,
Daniel.
Daniel Ruoso wrote:
TIMTOWTDI ;)
The objective of the blog was more about the learning + teaching
experience than anything else.
http://sial.org/pbot/37075
% perl rpn.pl "2 2 +"
Semicolon seems to be missing at rpn.pl line 2.
String found where operator expected at rpn.
Daniel Carrera wrote:
http://sial.org/pbot/37075
% perl rpn.pl "2 2 +"
Tee hee... that should have been "perl6". :-)
Ok, try again:
% perl6 rpn.pl "2 2+"
2 2
Daniel Carrera wrote
Ok, try again:
% perl6 rpn.pl "2 2+"
2 2
You can probably fix that with a different split() line. I tried using
instead of \s+ but the program just hangs forever.
I also tried a more complex expression, and the calculator didn't like it:
% perl6 rpn.pl
Daniel Ruoso wrote:
You can probably fix that with a different split() line. I tried using
instead of \s+ but the program just hangs forever.
Hmm.. it certainly is in the split, I'm not sure how to get the barrier
between the 2 and the +
Does Perl 6 still have the word barrier \b
Daniel Ruoso wrote:
Yes... that's what wasn't implemented... But now it is ;)
http://sial.org/pbot/37085
Close, but...
% perl6 rpn.pl "5 4 + 3 / 5 3 - *"
-6
That should be a positive 6.
Are you planning to write a post explaining how your program works? I
figure tha
Daniel Ruoso wrote:
Are you planning to write a post explaining how your program works?
Maybe, but if you want to beat me to it, feel free ;)
I figure that the explanation is as useful as the example. I sure
spent a lot of time writing the blog post.
I'm not sure I'll have t
http://sial.org/pbot/37077
A slightly improved syntax, as per jnthn++ suggestion...
Em Sáb, 2009-06-06 às 18:08 +0200, Daniel Carrera escreveu:
> Daniel Carrera wrote
> > Ok, try again:
> > % perl6 rpn.pl "2 2+"
> > 2 2
> You can probably fix that with a dif
Em Sáb, 2009-06-06 às 19:45 -0400, Minimiscience escreveu:
> my $ls = @a.shift;
> my $rs = @a.shift;
> To:
> my $rs = @a.pop;
> my $ls = @a.pop;
Thanks... this was already solved in the latest version I sent
http://sial.org/pbot/37089
daniel
Em Dom, 2009-06-07 às 00:07 +0200, Daniel Carrera escreveu:
> Daniel Ruoso wrote:
> >> Are you planning to write a post explaining how your program works?
> > Maybe, but if you want to beat me to it, feel free ;)
> >> I figure that the explanation is as useful as the e
Em Sáb, 2009-06-06 às 14:06 +0200, Daniel Carrera escreveu:
> I just wrote a blog post showing how to make a reverse polish notation
> calculator in Perl 6. In the process I show some of Perl 6's grammar
> features.
TIMTOWTDI ;)
http://sial.org/pbot/37075
daniel
Em Sáb, 2009-06-06 às 18:22 +0200, Daniel Carrera escreveu:
> Daniel Ruoso wrote:
> > er... that's because I didn't tried to implement it... but it
> certainly
> > is possible to, just by declaring the :(@a, Num $a) variant...
> Well, * is implemented, so I gues
Em Sáb, 2009-06-06 às 19:51 +0200, Daniel Carrera escreveu:
> Daniel Ruoso wrote:
> > Yes... that's what wasn't implemented... But now it is ;)
> > http://sial.org/pbot/37085
> Close, but...
> % perl6 rpn.pl "5 4 + 3 / 5 3 - *"
> -6
> That should be
one can no longer say that Perl's OOP is awkward.
I put a lot of effort in writing the code the same way in all languages
and I tried very hard to avoid any bias.
Cheers,
Daniel.
capture sigil here, which has '@%a' as its
expanded form)
my ¢a = 1,(2,(3,4);
say ¢a[1][1][1];
say ¢a[1;1;1];
I think that makes the semantics of the API more clear...
daniel
Em Sex, 2009-06-12 às 11:52 -0700, Jon Lang escreveu:
> On Fri, Jun 12, 2009 at 11:51 AM, Daniel Ruoso wrote:
> > Ok, There's one thing that is not clear in the thread, which is when an
> > array is multidimensional or not...
> > For instance:
> > @a = (1, 2
@c if (@c = new_customers());
serve_customer(@customers.shift);
}
I'm sure the more experienced people can suggest a better example.
Daniel.
401 - 500 of 1122 matches
Mail list logo
