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🦋 Welcome to the main IRC channel of the Raku Programming Language (raku.org). This channel is logged for the purpose of keeping a history about its development | evalbot usage: 'm: say 3;' or /msg camelia m: ... | Logs can be inspected at colabti.org/irclogger/irclogger_log/raku Set by lizmat on 21 April 2021. |
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| Xliff | my $a = 0; my $s = '%sddd%s%s'; $s ~~ s:/'%s'/$a++/; $s.say | 00:38 | |
| m: my $a = 0; my $s = '%sddd%s%s'; $s ~~ s:/'%s'/$a++/; $s.say | |||
| camelia | 5===SORRY!5=== Error while compiling <tmp> Colons may not be used to delimit quoting constructs at <tmp>:1 ------> 3my $a = 0; my $s = '%sddd%s%s'; $s ~~ s:7⏏5/'%s'/$a++/; $s.say expecting any of: colon pair (restricted… |
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| Xliff | m: my $a = 0; my $s = '%sddd%s%s'; $s ~~ s:g/'%s'/$a++/; $s.say | 00:38 | |
| camelia | 0++ddd0++0++ | ||
| Xliff | m: my $a = 0; my $s = '%sddd%s%s'; $s ~~ s:g/'%s'/<{ $a++ }>/; $s.say | 00:39 | |
| camelia | <0>ddd<1><2> | ||
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| Xliff | m: my $a = 0; my $s = '%sddd%s%s'; $s ~~ s:g/'%s'/<{ $a++ }/; $s.say | 00:39 | |
| camelia | <0ddd<1<2 | ||
| Xliff | m: my $a = 0; my $s = '%sddd%s%s'; $s ~~ s:g/'%s'/{ $a++ }/; $s.say | ||
| camelia | 0ddd12 | ||
| Xliff | m: my %a = 0; my $s = '%sddd%sddd%sdda%s'; $s ~~ s:g/'%s'/<{ %a{$0 // ''}++ }/; $s.say | 00:42 | |
| camelia | Odd number of elements found where hash initializer expected: Only saw 1 element in block <unit> at <tmp> line 1 |
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| Xliff | m: my %a ; my $s = '%sddd%sddd%sdda%s'; $s ~~ s:g/'%s'/<{ %a{$0 // ''}++ }/; $s.say | ||
| camelia | <0ddd<1ddd<2dda<3 | ||
| Xliff | m: my %a ; my $s = '%sddd%sddd%sdda%s'; $s ~~ s:g/'%s'/{ %a{$0} // ''}++ }/; $s.say | ||
| camelia | Use of Nil in string context ++ }ddd++ }ddd++ }dda++ } in block at <tmp> line 1 Use of Nil in string context in block at <tmp> line 1 Use of Nil in string context in block at <tmp> line 1 Use of Nil in string context in bloc… |
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| Xliff | m: my %a ; my $s = '%sddd%sddd%sdda%s'; $s ~~ s:g/(\w+)?'%s'/{ %a{$0} // ''}++ }/; $s.say | ||
| camelia | Use of Nil in string context ++ }++ }++ }++ } in block at <tmp> line 1 Use of Nil in string context in block at <tmp> line 1 |
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| Xliff | m: my %a ; my $s = '%sddd%sddd%sdda%s'; $s ~~ s:g/(\w+)'%s'/{ %a{$0} // ''}++ }/; $s.say | ||
| camelia | %++ }++ }++ } | ||
| Xliff | m: my %a ; my $s = '%sddd%sddd%sdda%s'; $s ~~ s:g/(\w+)'%s'/{ %a{$0 // ''}++ }/; $s.say | 00:43 | |
| camelia | %000 | ||
| Xliff | m: my %a ; my $s = '%sddd%sddd%sdda%s'; $s ~~ s:g/(\w+)'%s'/$0{ %a{$0 // ''}++ }/; $s.say | ||
| camelia | Use of Nil in string context % in code at <tmp> line 1 Use of Nil in string context in code at <tmp> line 1 Use of Nil in string context in code at <tmp> line 1 |
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| Xliff | m: my %a ; my $s = '%sddd%sddd%sdda%s'; $s ~~ s:g/(\w+)'%s'/{ $0 }{ %a{$0 // ''}++ }/; $s.say | ||
| camelia | %sddd0ddd0dda0 | ||
| Xliff | m: my %a ; my $s = '%sddd%sddd%sdda%s'; $s ~~ s:g/(\w+)?'%s'/{ $0 }{ %a{$0 // ''}++ }/; $s.say | ||
| camelia | Use of Nil in string context 0ddd0ddd1dda0 in code at <tmp> line 1 |
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| Xliff | m: my %a ; my $s = '%sddd%sddd%sdda%s'; $s ~~ s:g/(\w+)?'%s'/{ $0 // ''}{ %a{$0 // ''}++ }/; $s.say | 00:44 | |
| camelia | 0ddd0ddd1dda0 | ||
| Xliff | m: my %a ; my $s = '%sddd%sddd%sdda%sddd%sddd%s'; $s ~~ s:g/(\w+)?'%s'/{ $0 // ''}{ %a{$0 // ''}++ }/; $s.say | ||
| camelia | 0ddd0ddd1dda0ddd2ddd3 | ||
| tonyo | Xliff: give raku -e a shot | 00:48 | |
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| Xliff | Does raku have a "first" statement that will only run first time through a loop? | 01:01 | |
| FIRST phased I think is too early. | |||
| moon-child | what's wrong with FIRST? | 01:04 | |
| m: for ^5 { FIRST { say "O $_" } say $_} | 01:06 | ||
| camelia | 5===SORRY!5=== Error while compiling <tmp> Strange text after block (missing semicolon or comma?) at <tmp>:1 ------> 3for ^5 { FIRST { say "O $_" }7⏏5 say $_} expecting any of: infix infix stopper st… |
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| moon-child | m: for ^5 { FIRST { say "O $_" }; say $_} | ||
| camelia | O 0 0 1 2 3 4 |
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| Xliff | for ^5 { my $a = $_ + 1; FIRST { say "O $a" }; say $_} | 01:09 | |
| m: for ^5 { my $a = $_ + 1; FIRST { say "O $a" }; say $_} | |||
| camelia | Use of uninitialized value element of type Any in string context. Methods .^name, .raku, .gist, or .say can be used to stringify it to something meaningful. O 0 1 2 3 4 in block at <tmp> line 1 |
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| Xliff | m: for ^5 { my $a = $_ + 1; FIRST { say "O { $a // 'undef'" }; say $_} | ||
| camelia | 5===SORRY!5=== Error while compiling <tmp> Two terms in a row at <tmp>:1 ------> 3 $_ + 1; FIRST { say "O { $a // 'undef'7⏏5" }; say $_} expecting any of: infix infix stopper statement end … |
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| Xliff | m: for ^5 { my $a = $_ + 1; FIRST { say "O { $a // 'undef' }" }; say $_} | ||
| camelia | O undef 0 1 2 3 4 |
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| Xliff | ^^ That's my current problem. | ||
| japhb | Xliff: (First approximation) Phasers are attached to blocks and fire at entry and exit, they don't happen at their location in the source code. | 01:18 | |
| So a CATCH {} block for example could be at the start, middle, or end of a block, and work the same. | |||
| The approximation part is that there are phasers that are associated with the entire program or comp unit | |||
| Xliff | japhb: Yes. I figured that bit out. | 01:21 | |
| japhb: In the end, I just had to use a loop sentinel. It works, but I always think a High Level Language should know when a loop is running its first iteration and provide some way to test for that. | |||
| moon-child | what is a High Level Language? | 01:48 | |
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| Xliff | moon-child: Anything that is not considered the base run-time. | 02:09 | |
| Depends on the context. | |||
| For bare metal it means anything written in something other than ASM | |||
| MoarVM is considered run-time so NQP isn't quite considered High Level, but Raku is. | |||
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| Geth | doc: af682314b1 | (Stoned Elipot)++ (committed by Juan Julián Merelo Guervós) | doc/Type/Supply.pod6 Note ms granularity for Supply.batch ref #3744 |
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| doc: 8d298872e0 | (Stoned Elipot)++ (committed by Juan Julián Merelo Guervós) | doc/Type/Supply.pod6 Use a more appropriate tense |
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| andinus | .tell tonyo was away | 07:10 | |
| tellable6 | andinus, I'll pass your message to tonyo | ||
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| kawaii | How do I merge two Sets? I need an array-like structure with no duplicates so I figured Set was the best choice. | 12:24 | |
| MasterDuke | m: say set(1, 2) (|) set(1, 2, 3) | 12:26 | |
| camelia | Set(1 2 3) | ||
| lizmat | m: dd <a b c d> (|) <d e f> | 12:27 | |
| camelia | Set.new("b","c","f","e","a","d") | ||
| kawaii | ah, pipe! | ||
| thanks :) | |||
| lizmat | with parens! | ||
| (|) | |||
| m: dd (<a b c d>, <d e f>).flat.unique # without Sets, but with set semantics | 12:29 | ||
| camelia | ("a", "b", "c", "d", "e", "f").Seq | ||
| lizmat | kawaii ^^ | 12:30 | |
| kawaii | Oooo, thank you, this might be useful too! | ||
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| kawaii | Am I interpreting TWEAK correctly here? If I'm making a class, and then a user creates an object to use the methods etc within my class, when the object is initialised any code in the TWEAK block will be run at that moment? | 12:38 | |
| lizmat | well, in general, yes, unless you create your own .new method | ||
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| lizmat | and that .new method doesn't do a self.bless(...) | 12:39 | |
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| kawaii | lizmat: so, given my understanding above, my method here, register-termination-points, will run when the user creates an object like `my $m = Mint.new();`, and also allow the user to manually run that method if they wish to add any of their own into the produced set? www.irccloud.com/pastebin/FnMQP7wY/ | 12:45 | |
| lizmat | kawaii: what attributes is that class supposed to have? I don't see any ? | 12:48 | |
| kawaii | lizmat: sorry, it's supposed to be `has $termination-points` and to be populated by the method in the tweak | 12:51 | |
| `has $termination-points = self.register-termination-points;` I think that would be | 12:52 | ||
| oh, so I don't need a tweak at all here | |||
| lizmat | then please adapt your gist so I can make a better assessment of what you're trying achieve | ||
| yeah, looks like, if you trust the user to always provide valid termination points | 12:53 | ||
| MasterDuke | m: sub a($b = Empty) { (1, 2) (|) $b }; say a(4); say a();Â # kawaii if you default the parameter to Empty you don't need the if | ||
| camelia | Set(1 2 4) Set(1 2) |
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| MasterDuke | slip also works | 12:57 | |
| kawaii | if I `return $.termination-points;`, this will then overwrite my class attribute correct? | 13:07 | |
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| PimDaniel | \o I did yet ask the question but this subject is still stalled for me: | 13:43 | |
| 1st of all : in which OS(es) all of you are using Raku? | 13:44 | ||
| Mine is Linux. Are many of you using Linux or not? | 13:45 | ||
| MasterDuke | linux | ||
| El_Che | linux as well | 13:47 | |
| lizmat | MacOS and Debian | ||
| Debian being the "production" environment for me | |||
| and MacOS the dev environment | |||
| El_Che | a little on macos, but not much since I use it more as an expensive type machine | 13:48 | |
| PimDaniel | I'm on Debian too, since 1999 probably. Okay so may you look at that : github.com/Pim-tech/Orthogon/blob/...p.rakumod, plus make it work! I know it require a few time. I think MacOs could be suited to my needs too. | ||
| My question is an algorithm question : not a Raku one. | 13:49 | ||
| But i could found an answer or where to search, so .... | 13:50 | ||
| El_Che | afk | ||
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| PimDaniel | Hooo it is not the good link, sorry: the whole code is : github.com/Pim-tech/Orthogon | 13:51 | |
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| PimDaniel | the 1st link : HopcroftKarp.rakumod is a rewriting of this algorithm (Hopcropft and Karp) from Python to Raku by myself. | 13:52 | |
| lizmat | ... | 13:53 | |
| PimDaniel | There are of course probably many optimizations to do on this code but it works. | ||
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| PimDaniel | Now here comes my problem and the question: I,'ve transform the polygon to a set of rectangles this way: draw the Vertical and Horizontal cuts, reduce them by HopKorp and Karp algoritm. Add the cuts on concave angles, But now i can NOT found an easy way to fill the rectangles. | 13:58 | |
| This is the ultimate final step. | |||
| To build the the polygon from the terminal, i've began a trace tool. At the end theses tools and the global polygon drawer will use box drawing characters automatically, but this is not a problem and not the priority. | 14:01 | ||
| The corresponding subject is described here: stackoverflow.com/questions/591929...68#6634668 | 14:03 | ||
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| PimDaniel | But the algorithm i search could be resume as: How to fill a set of puzzeled rectangles. | 14:10 | |
| The data given to define theses puzzeleded rectangles may be points or lines. | 14:12 | ||
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| PimDaniel | Hope i was clear. | 14:14 | |
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| lizmat | PimDaniel: I think your question requires people getting into that problem, which would take significant effort here for most | 14:17 | |
| and most people here are also busy doing other things | |||
| so there's a good chance this question will get warnocked | |||
| jdv79 | lizmat: i forgot to ask earlier - where is this "EXPORT:refine" stuff supported? i grepped around and i couldn't find anything. | 14:20 | |
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| lizmat | jdv79: only one module in the ecosystem so far: modules.raku.org/dist/Interval:cpan:ELIZABETH | 14:21 | |
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| jdv79 | but how does that work? i couldn't find it in moar or nqp of rakudo... | 14:23 | |
| *or | |||
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| lizmat | jdv79: it doesn't need anything extra in core for it to work | 14:30 | |
| that's the nice part of it :-) | |||
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| lizmat | modules.raku.org/dist/Interval:cpa...al.pm6#L30 is the real trick | 14:31 | |
| jdv79 | cool. i don't understand how it works. | ||
| lizmat | in the scope of the module, I've defined a subclass of DateTime | ||
| whenever I say use module :foo, then anything in the EXPORT:foo stash will be exported | 14:32 | ||
| BEGIN EXPORT::refine::<DateTime> := Interval; | |||
| make sure that there is a "DateTime" key in the EXPORT::refine stash | |||
| and that it is really the "local" Interval class | |||
| so this creates a lexical DateTime entry in the scope where the use is done | 14:33 | ||
| that *isn't* the core's DateTime, but the Interval class from the module | |||
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| jdv79 | oh... i guess i should re-read about export and friends. that's crazy. | 14:35 | |
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