On Wed, 7 Dec 2022 08:58:19 -0800
ToddAndMargo via perl6-users wrote:
> When I am in a module (pm6), is there one of those
> fancy system variables that will tell me the
> name of calling (pl6) program?
https://docs.raku.org/language/variables#index-entry-$*PROGRAM
--
Dakkar -
On 2022-07-02 Marc Chantreux wrote:
> AFAIK about raku -n, I need 2 lines to setup a
> state with a default value
>
> seq 2| raku -ne '
> state (@o, @f);
> BEGIN @o = 0 xx 3;
> @o.push: "ok";
> say @o;
> '
>
> but is there a sho
On Mon, 10 Jan 2022 15:41:04 +
Richard Hainsworth wrote:
> Using REPL I got
>
> > my $s = '\'\''
> ''
> > $s.subst( / \' ~ \' (.+) /, $0)
> Use of Nil in string context
> in block at line 1
That error message (which is a bit LTA) refers to the `$0`. As
https://docs.raku.org/routi
On 2021-07-27 Elizabeth Mattijsen wrote:
> So the deprecation logic is pointing at the wrong line.
>
> Where does this RunNoShellLib.pm6 live? It's must be something
> inside that.
Given the error message says:
> Please use exitcode and/or signal methods (status is to be
> in 2022.06) instead.
On Tue, 25 May 2021 15:16:03 +
Andy Bach wrote:
> > However I had to use "Int" instead of "int":
> Ah, "int" is the "lower" level, native integer and "Int" is the raku.
> An "int" is immutable or something?
It's a bug in the REPL. The example from the documentation works when
fed to the comp
On 2021-05-24 William Michels via perl6-users
wrote:
> Daniel: Thank you for your confirmation on EVAL. Also, I tried parsing
> the ATOM SYMBOL character to look at classification, and this is the
> best I could do (in the Raku REPL):
>
> > say "⚛".uniprop
> So
Not-terribly-human-friendly abbrev
On 2021-02-24 rir wrote:
> It is just an odd puzzle for me that "UnknownBareId KnownClassId"
> is accepted has the start of a valid statement. How would such
> a statement be completed?
Let's go through a few examples::
raku -e 'foo 1'
===SORRY!=== Error while compiling -e
Undeclared rou
On 2021-02-16 Joseph Brenner wrote:
> But I don't see them in the list from .^methods:
>
> say $s.^methods;
>
> say so $s.^methods.gist.grep(/<>/); # False
``say`` calls ``.gist``, which produces a *truncated* string
representation for long lists::
$ raku -e 'say (^1000).List'
(
On 2021-01-06 yary wrote:
> I have been going through quite a few contortions to look at the
> source code for installed modules in raku, and would very much like
> rakudoc to have an option similarly to perldoc -l showing the cached
> path and hashed local file names of installed modules.
zef d
On 2021-01-05 David Emanuel da Costa Santiago
wrote:
> > so the inner ``whenever`` really sets up a separate tap every time
> > it's executed.
> Is this behaviour expected? It kinda looks weird to me, specially
> when looking to the output...
Well, it's what *I* expected: a ``whenever`` sets
On 2021-01-05 William Michels via perl6-users
wrote:
> Raiph's suggestion works for me (on rakudo-2020.10). I mean, p6doc
> installs
Oh, that points to new, different, problems.
https://modules.raku.org/search/?q=p6doc links to
https://github.com/Raku/doc which does not contain a ``p6doc`` scrip
On 2021-01-05 Brad Gilbert wrote:
> There really shouldn't be that much difference between what the
> documentation says and how your version works.
I've worked on machines stuck with perl 5.8 when the online
documentation was for 5.26
I'd like to live in a world where:
* raku is popular and wi
On 2021-01-05 JJ Merelo wrote:
> Gianni is basically right. rakudoc has not really been released yet
> into the ecosystem, and p6doc will get you the documentation itself,
> which you will have to build then. So LTA is true, and there's some
> work to be done. There's probably an issue already cre
On 2020-12-30 Gianni Ceccarelli wrote:
> Also, my understanding of ``whenever`` is that it's adding a hook into
> the event loop, and only leaving the surrounding ``react`` (or
> ``supply``) will remove that hook (people who understand this better
> than I do: please correct me!
https://docs.raku.org/programs/02-reading-docs says to use ``rakudoc``
to read the documentation of installed modules.
I don't have it installed::
$ rakudoc
-bash: rakudoc: command not found
Not a problem, that same page says to use zef::
$ $ zef install rakudoc
===> Searching for: raku
On 2020-12-30 David Santiago wrote:
> Thanks! It's indeed much clearer. However i have a question, why the
> react on line 24?
>
> The react there isn't required right?
I think it is ☺ The code, without the debugging bits::
react {
whenever $channel -> $val {
$conn.prin
Liz is, as usual, correct: there's no reason to wait until our write
buffers are flushed (``await $conn.print``) before ``react``ing to
what's in our *read* buffers.
In https://github.com/dakkar/raku-socket-test-from-demanuel I've
removed all ``await`` but one (the ``await .connect``), and the
pro
On 2020-12-29 David Santiago wrote:
> i don't want it to exit, i want it to keep reading from the socket
> until a "200" code happens.
Sorry, I had mis-understood the protocol.
I've put the code on Github so it's easier to look at it
https://github.com/dakkar/raku-socket-test-from-demanuel (thos
On 2020-12-29 David Santiago wrote:
> I need some help in debugging my script. Sometimes it hangs and i
> don't know why.
I'm pretty sure it hangs in the inner ``react``::
if $line ~~ /^340/ {
await $conn.print("[$consumer]: value $val\r\n");
} else {
done;
}
Notice
On 2020-11-13 ToddAndMargo via perl6-users wrote:
> Hi All,
>
> I am writing out an array of text lines to a file.
> I just can't help but thinking I am doing it the
> hard way.
>
> unlink( $Leafpadrc );
> for @LeafpadrcNew -> $Line { spurt( $Leafpadrc, $Line ~ "\n",
> :append ); }
>
On 2020-11-13 Sean McAfee wrote:
> I just tried making a sequence of junctions and found that each one
> ended up wrapped in a singleton list somehow:
>
> > ({ 1 | -1 } ... *)[^3]
> ((any(1, -1)) (any(1, -1)) (any(1, -1)))
oh, that's weird::
> ({ 'a' } ... *)[0].^name
Str
>
On 2020-09-26 David Santiago wrote:
> I'm trying to capture key presses in the terminal and according to
> raku's documentation i need to have $*IN unbuffered.
You have to tell the terminal to stop buffering (AFAIK Raku doesn't
buffer its inputs), which is not exactly trivial.
You may be better
On Wed, 26 Aug 2020 14:31:06 +0200
Marcel Timmerman wrote:
> I was experimenting with extended identifiers and found that it is
> not possible to use it in named attributes. E.g.
>
> > sub a (:$x:y) { say $x:y; }
> ===SORRY!=== Error while compiling:
> Unsupported use of y///. In Raku please us
On Mon, 20 Jul 2020 14:00:33 +0200
Tobias Boege wrote:
> You cannot write `Walkable &w` in the signature of &walker because the
> combination of a type and the &-sigil apparently means that `&w`
> should be Callable and return a Walkable. That's why I use the
> $-sigil.
Aha! That's the bit I got
On Mon, 20 Jul 2020 12:37:33 +0200
Theo van den Heuvel wrote:
> The situation: I have a function, let's call in 'walker', whose first
> parameter is a callback.
> I wish to express that only callbacks with a certain Signature and
> return type are acceptable.
> Let's say the callback should foll
On 2020-06-29 Richard Hainsworth wrote:
> a) I don't understand why the white space matters, but clearly it
> does. So the token is '{*}' and not braces around a Whatever-star.
Yep. Weird, but it's a special token.
> Not sure why the List:D is not being matched to Positional. Is the
> List:D re
On 2020-05-21 David Santiago wrote:
> Can someone explain me why my grammar isn't working? Unfortunately i
> can't figure it out :-(
Mixing ``rule``, ``token``, and ``regex`` apparently at random doesn't
make for a good grammar…
The text at
https://docs.raku.org/language/grammar_tutorial#The_tec
On 2020-05-06 William Michels via perl6-users
wrote:
> Are there any other "operators that modify their operands" in
> Raku/Perl6 that don't require an initializing "." (dot)?
The dot is used to call a method on an object.
> I checked the "subst" command and it requires an initial ".=" when
> us
On 2020-05-06 William Michels via perl6-users
wrote:
> Can anyone answer why--in a one-liner using the "-pe" flag--the s///
> and tr/// functions do not require a "." (dot) preceding the function
> call?
Because they're not function calls, but *mutating* operators. As the
documentation says
https
On 2020-05-06 William Michels via perl6-users
wrote:
> So if the following code does useless work:
>
> perl6 -pe '.chop' demo1.txt
>
> why doesn't it fail with an error, "Useless use of ... in sink context
> (line 1)"?
That's a very good question!
My best attempt at an answer:
* subroutines t
On 2020-05-05 William Michels via perl6-users
wrote:
> If the only difference between the "-n" and "-p" flags is really that
> the second one autoprints $_, I would have expected the "-pe" code
> above to work identically to the "-ne" case (except "-ne" requires a
> print, put or say). Presumably
On 2020-05-05 William Michels via perl6-users
wrote:
> mbook:~ homedir$ perl6 -ne 'put .chop' demo1.txt
> this is a test
> I love Unix
> I like Linux too
> mbook:~ homedir$ perl6 -pe '.chop' demo1.txt
> this is a test,
> I love Unix,
> I like Linux too,
The ``.chop`` method does not mutate its ar
On 2019-11-22 Marc Chantreux wrote:
> ";" to walk in the hoh is really awesome but i don't know even know
> from where i know it and what's the object underneath.
> it isn't listed in the list of operators
It's mentioned in the page about subscripts:
https://docs.perl6.org/language/subscripts#Mul
On Wed, 4 Sep 2019 21:44:29 -0700
William Michels via perl6-users wrote:
> Hi Gianni, I'm not sure of the Perl5 case, but what you're saying is,
> if your target string is backslashed, be sure to "quote-interpolate
> it" in Perl6? (see below):
Re-reading what I wrote, I realise it was really not
On Tue, 3 Sep 2019 09:15:54 -0700
William Michels via perl6-users wrote:
> Just a short note that Eirik's array-based code seems to work fine,
> with-or-without backslash-escaping the first input string (minimal
> testing, below):
Oh, sure. But when the target string contains backslashes, it wil
On 2019-09-02 The Sidhekin wrote:
> To have the (1-character) strings used a literals, rather than
> compiled as subrules, put them in an array instead of a block wrapped
> in angle brackets:
>
> sub contains( Str $chars, Str $_ ) {
> my @arr = $chars.comb;
> m:g/@arr+/
This looks to be th
On Tue, 2 May 2017 17:02:40 +0200
Gabor Szabo wrote:
> Is there some way in Perl 6 to tell if a file was executed directly or
> loaded into memory as a module?
One way that seems to work: define a ``sub MAIN``; it will be invoked
when you execute the file as a program, but won't be touched if you
On 2016-01-17 Tom Browder wrote:
> My question: Is there a way to have Perl 6 do the required escaping
> for the regex programmatically, i.e., turn this:
>
> my $str = '/home/usr/.cpan';
>
> into this:
>
> my regex dirs {
> \/home\/usr\/\.cpan
> }
>
> automatically?
Yes! And it's also sim
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