Re: Fancy sub arg handling: ability to expand error message?

use multi subs, and use a catch-all candidate which produces the error message. multi thingy($x) { $x + 42 } multi thingy(|c) { die Must call thingy with exactly one argument } Multis? I guess my mind went elsewhere: sidhekin@purplehat[00:25:02]~$ cat tom.p6 sub foo($x = (warn foo called

Re: problem pushing pairs onto an array of pairs

On Sat, Jun 13, 2015 at 12:25 PM, mt1957 mt1...@gmail.com wrote: Can't push/unshift onto an array of pairs! Below a repl session with pushes my @p = a = 1, b = 2; a = 1 b = 2 @p.push(x=1); a = 1 b = 2 That's not pushing a pair – that's pushing nothing (no positionals) with a named

Re: Strict Rakudo version of this Perl5 one-liner

On Tue, Sep 1, 2015 at 5:41 PM, Matija Papec wrote: > Scoping of lexical looks interesting > > perl6 -ne 'my %d; %d{ .words[1] }++; END { %d.sort.perl.say }' > > as this could not work in perl5 > > perl -nE 'my $d =1; END { say $d//"default!" }' # gives default > It's

Re: Strict Rakudo version of this Perl5 one-liner

On Wed, Sep 2, 2015 at 7:49 AM, Matija Papec wrote: > > I've picked a wrong example, > > seq 3 | perl -nE 'my %d; $d{$_}++; END { say keys %d }' > > vs > > seq 3 | perl6 -ne 'my %d; %d{$_}++; END { say keys %d }' > > So it seems that perl6 handles lexicals inside while

Re: maintainability and "or"

On Tue, Mar 21, 2017 at 7:28 PM, Brandon Allbery wrote: > On Tue, Mar 21, 2017 at 7:50 AM, Elizabeth Mattijsen > wrote: > >> $PathAndName.IO.open(:w).close unless $PathAndName.IO.f; > > > This has a readability issue, though: you've buried the lede.

Re: Any text editors for programming that support the secondary selection clipboard?

On Wed, Jun 21, 2017 at 1:35 PM, Luca Ferrari wrote: > > I like Geany, but it does not support the "Secondary Selection" > > clipboard. This clipboard would save me a bunch of time as > > I would not lose my cursor hot spot. > > Emacs

Re: takeWhile ?

On Mon, Sep 11, 2017 at 10:01 PM, Marc Chantreux wrote: > hello, > > doing maths with my kid, i just translated his spreadsheet with those > lines of haskell: > > rebonds height loss = height : rebonds (height - height * loss) > loss > main = print $ takeWhile

Re: Need match character help

On Thu, May 17, 2018 at 12:51 PM, Timo Paulssen wrote: > character classes are fundamentally the wrong thing for "phrases", since > they describe only a character. > You were right the first time. > Your current regex (before changing [gm] to ["gm"]) was expressing "from >

Re: EVAL?

On Thu, Jun 14, 2018 at 8:01 AM, Todd Chester wrote: > > > On 06/13/2018 12:27 PM, Brandon Allbery wrote: > >> use MONKEY-SEE-NO-EVAL; >> > > Thank you. Someone had fun with that name! > > Do I presume there is not other way around the issue? > That depends on your use case. EVAL/eval is

Re: Malformed UTF-8?

On Sat, Jun 16, 2018 at 5:19 PM, Brandon Allbery wrote: > Something's wrong with the data file you are reading. Perl 6 is expecting > UTF-8 encoding and getting something else (usually an ISO-8859 encoding). > Are you sure it's a data file? I thought I recognized that code, and it was

Re: stackoverflow vs the world (and perl6-users)

On Tue, Jun 12, 2018 at 9:18 PM, Brad Gilbert wrote: > On Tue, Jun 12, 2018 at 1:19 PM, Joseph Brenner wrote: > > Attention conservation: it's unlikely I'm going to say something > > interesting you haven't thought of already. > > > > A side-discussion that came up here: should you ask

Re: EVAL?

On Thu, Jun 14, 2018 at 7:57 PM, Brandon Allbery wrote: > You can never be certain in *any* case. Check if you're not sure what it > means. Because sometimes languages use some term in a way you don't expect, > whether because they drew it from some specific discipline (Haskell uses a > lot of

Re: EVAL?

On Thu, Jun 14, 2018 at 7:21 PM, ToddAndMargo wrote: > 2) what the heck is a "pragma"? Way to obscure. > I thought you knew. From the Perl 5 documentation: "A pragma is a module which influences some aspect of the compile time or run time behaviour of Perl, such as strict or warnings."

Re: EVAL?

On Thu, Jun 14, 2018 at 7:46 PM, ToddAndMargo wrote: > On 06/14/2018 10:43 AM, The Sidhekin wrote: > >> >>More relevant, Perl 6 documentation: https://docs.perl6.org/languag >> e/pragmas >> > > You are presuming I knew the word was a Perl word. > I

Re: EVAL?

On Thu, Jun 14, 2018 at 6:11 PM, Timo Paulssen wrote: > If it's literally just the name of a sub that you'll immediately invoke, > you can side-step EVAL completely > > ::('&' ~ $RunSpecific)() > > should do the trick. > I haven't been much into Perl 6 lately, but isn't this just the same

Re: Appropriate last words

On Mon, Sep 3, 2018 at 10:50 PM Curt Tilmes wrote: > On Mon, Sep 3, 2018 at 4:28 PM Parrot Raiser <1parr...@gmail.com> wrote: > >> If I understand that correctly, "die" needs to be documented as always >> outputting the line number, and that for user-oriented messages, one >> of the other

Re: Could this be any more obscure?

On Wed, Sep 26, 2018 at 8:58 AM Todd Chester wrote: > Hi All, > > Over on > https://docs.perl6.org/routine/words > I see > > multi method words(Str:D $input: $limit = Inf --> Positional) > > HOW IN THE WORLD did they convert `$limit = Inf` into an > array index!?!?! > It's not. It's

Re: Could this be any more obscure?

On Wed, Sep 26, 2018 at 11:40 PM ToddAndMargo wrote: > What I don't understand is: > > multi method words(Str:D $input: $limit = Inf --> Positional) > > Specifically "$limit = Inf". Why are we using "$limit" instead > of "$selection" > Perhaps this would be easier if you explain where

Re: Could this be any more obscure?

On Thu, Sep 27, 2018 at 3:03 AM ToddAndMargo wrote: > On 9/26/18 5:55 PM, Curt Tilmes wrote: > > You are calling [] on the thing that the methods return. > > Yes, I know. And it is human readable too. It is one of the > many reasons I adore Perl 6. > > Where in > multi method words(Str:D

Re: Could this be any more obscure?

On Thu, Sep 27, 2018 at 2:49 AM ToddAndMargo wrote: > On 9/26/18 4:33 PM, The Sidhekin wrote: > > On Wed, Sep 26, 2018 at 11:40 PM ToddAndMargo > <mailto:toddandma...@zoho.com>> wrote: > > > And where is it stated wha

Re: Could this be any more obscure?

On Thu, Sep 27, 2018 at 3:14 AM Peter Scott wrote: > On 9/26/2018 3:21 PM, ToddAndMargo wrote: > > Do your really think any beginner would be able to figure out > > "words" from the above? > > If the beginner had studied the metasyntax of function prototypes, > probably. Yeah, that's where a

Re: escape codes

On Sun, Sep 16, 2018 at 3:45 PM Parrot Raiser <1parr...@gmail.com> wrote: > -- Forwarded message -- > From: Parrot Raiser <1parr...@gmail.com> > Date: Sun, 16 Sep 2018 09:41:44 -0400 > Subject: Re: escape codes > To: ToddAndMargo > > Those (\t & \n) aren't "escape characters",

Re: buf to integer?

On Fri, Feb 8, 2019 at 7:36 AM Todd Chester via perl6-users < perl6-users@perl.org> wrote: > I am dealing with a Buf what includes 32 bit integers, but > they are entered somewhat backwards as view with hexedit: > > AE 5D 5C 72 represents the number 725C5DAE > > This is what I have come up with

Re: List in regexp

On Tue, Sep 3, 2019 at 8:37 AM yary wrote: > I see. And that's discussed here (had to really look for it): >> https://docs.perl6.org/language/regexes#Quoted_lists_are_LTM_matches >> At first I was looking further down in the "Regex interpolation" >> section, where it's also touched on, though I

Re: Variable character class

On Tue, Sep 3, 2019 at 8:18 PM William Michels wrote: > PS Eirik, I think people might be referring to <{...}> as "pointy > blocks", but I'm really not sure... . > I'm pretty sure Perl6 pointy blocks still refer to block constructors with signatures, like: C<< my $add = -> $a, $b = 2 { $a +

Re: Variable character class

On Mon, Sep 2, 2019 at 1:12 AM Joseph Brenner wrote: > I was just trying to run Simon Proctor's solution, and I see it > working for Yary's first case, but not his more complex one with > problem characters like brackets included in the list of characters. > > I don't really see how to fix it,

Re: Quoting issue in Windows

On Mon, Dec 2, 2019 at 11:07 AM ToddAndMargo via perl6-users < perl6-users@perl.org> wrote: > > What is the world is the Q doing in Q'\'? > https://docs.perl6.org/language/quoting It would be clearer to write it as Q[\], I guess. Eirik

Re: words and separators question

On Thu, Nov 28, 2019 at 2:53 PM ToddAndMargo via perl6-users < perl6-users@perl.org> wrote: > Is there a way I can tell words that I want "fg hi" to > be considered one word? A way to make the separator > two or more spaces? > I don't think you can pass a separator to words. But you can

Re: Bug to report: cardinal called an integer

On Mon, Jan 13, 2020 at 8:51 PM ToddAndMargo via perl6-users < perl6-users@perl.org> wrote: > On 2020-01-13 11:10, ToddAndMargo via perl6-users wrote: > > > > https://docs.raku.org/type/UInt > > Subset UInt > > Unsigned integer (arbitrary-precision) > > The UInt is defined as a subset

Re: Bug to report: cardinal called an integer

On Mon, Jan 13, 2020 at 10:46 PM ToddAndMargo via perl6-users < perl6-users@perl.org> wrote: > On 2020-01-13 12:43, The Sidhekin wrote: > > On Mon, Jan 13, 2020 at 8:51 PM ToddAndMargo via perl6-users < > perl6-users@perl.org> wrote: > >> In https://docs.rak

Re: Bug to report: cardinal called an integer

On Tue, Jan 14, 2020 at 1:25 AM ToddAndMargo via perl6-users < perl6-users@perl.org> wrote: > On 2020-01-13 15:16, Laurent Rosenfeld via perl6-users wrote: > > The way you consistently mixed up uint and Uint in the last hours, > > despite having been warned about this mistake, also shows a lack

Re: can't make from a S/// ?

On Sat, Nov 20, 2021 at 9:03 PM Marc Chantreux wrote: > > > method col:sym ($/) { .make ~S:g/'""'/"/ } > > That's not working for me. I'm on Moar (2021.06). > > works for me with: > method col:sym ($_) { .make: ~S:g/'""'/"/ } > Yeah, you got it wrong the first time. To explicate, the

Re: steps of a path

On Wed, Sep 7, 2022 at 6:27 PM Parrot Raiser <1parr...@gmail.com> wrote: > > > > That said, right now gmail is claiming whipupitude is misspelled... > > > An alternative is "whipitupitude" (the difference being the first "it". > > Given the examples I've seen over the years, there's a need for an

Re: $/ not always set after a regex match?

On Fri, Dec 30, 2022 at 8:51 PM Vadim Belman wrote: > It is not "untrue". The sequence you produced goes nowhere. Thus the sink > context. > "Sink context" is true. "Useless use" is debatable, at least. Eirik