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🦋 Welcome to the former MAIN() IRC channel of the Raku Programming Language (raku.org). This channel has moved to Libera (irc.libera.chat #raku) Set by lizmat on 23 May 2021. |
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| elcaro | tbrowder: It's still not clear what your doing without an example... you have a list of things that are numbers in various formats, and your trying to parse them to a Numeric type? | 00:22 | |
| also, one limitation of the radix literal syntax is, well... that it requires a "literal". you can't do `:$base<$str>`. for when you need a variable base, there's `$str.parse-base($base)` | 00:24 | ||
| tbrowder | i understand. i just need a list of numbers that are not pure strings but retain their number type even as a string. the <<>> do that for all formats it seem. | 00:27 | |
| elcaro | Could you use allomorphs? | 00:37 | |
| m: say my $x = RatStr.new(:16<10.1>, '0x10.1'); say +$x | 00:38 | ||
| camelia | 0x10.1 16.0625 |
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| rassoc | that's what «...» is doing | 00:55 | |
| "This style of quoting is like qqww, but with the added benefit of constructing allomorphs" | |||
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| tbrowder | cool | 01:43 | |
| and i'm constructing the set of allomorphs into an array for test inputs manually, so the <<>> are exactly what i need for that. | 01:46 | ||
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| Geth | Raku-Steering-Council: szabgab++ created pull request #42: link to web site |
04:31 | |
| Raku-Steering-Council: szabgab++ created pull request #43: list all the announcements |
04:41 | ||
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| Geth | Raku-Steering-Council/main: 4cdf55c717 | (Gabor Szabo)++ (committed using GitHub Web editor) | README.md link to web site |
06:09 | |
| Raku-Steering-Council/main: e594156663 | (Juan Julián Merelo Guervós)++ (committed using GitHub Web editor) | README.md Merge pull request #42 from szabgab/patch-1 link to web site |
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| lizmat | and yet another Rakudo Weekly News hits the Net: rakudoweekly.blog/2021/07/05/2021-...essing-up/ | 10:59 | |
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| moritz | lizmat++ | 11:21 | |
| rassoc | thanks a lot! | 11:32 | |
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| rassoc | raiph states the following in one of those links: "In Raku, Int denotes what PLs like Swift mean by Int?. The rationale is that object types should incorporate type safety by default without requiring a blizzard of ?s." | 12:15 | |
| how is that true? crystal, rust and swift enforce these null-checks at compile-time, don't they? How does raku come close to this? | 12:16 | ||
| moritz | it doesn't | 12:24 | |
| tbrowder | howdy, rakoons | 12:54 | |
| i just put up a short article on a proposed 'modf' routine for the raku core on the rakudo wiki. its link is in the list in the brief menu on the right side entitled 'Modf routine'. | 12:57 | ||
| i would appreciate critical reviews and changes to that. | 12:58 | ||
| i have successfully moved my ongoing implementation of that from the 6.c to the 6.e release side of the rakudo master branch, and i will be implementing the user interface as i describe on the wiki. | 13:01 | ||
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| m6locks | has anyone done SICP in raku? | 13:07 | |
| something like this alumni.media.mit.edu/~tpminka/PLE/h...tream.html | |||
| tbrowder | correction: the title on the wiki is "Modf proposal" | ||
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| littlebenlittle[ | m: '"this"' ~~ / <?before '"'> <?after '"'> .* / | 16:51 | |
| camelia | ( no output ) | ||
| littlebenlittle[ | * m: say '"this"' ~~ / <?before '"'> <?after '"'> .* / | 16:52 | |
| m: say '"this"' ~~ / <?before '"'> <?after '"'> .* / | |||
| camelia | Nil | ||
| littlebenlittle[ | m: '"this"' ~~ / <?before '"'> <?after '"'> .* / | 16:53 | |
| camelia | ( no output ) | ||
| littlebenlittle[ | * m: say '"this"' ~~ / <?before '"'> <?after '"'> .* / | ||
| m: say '"this"' ~~ / <?before '"'> <?after '"'> .* / | |||
| camelia | Nil | ||
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| littlebenlittle[ | How can I get zero width assertions to work together in order to match values delimited by quotes or braces? | 16:54 | |
| moritz | m: say '"this"' ~~ / <?after '"'> .*? <?before '"'>/ | ||
| camelia | ｢this｣ | ||
| littlebenlittle[ | The before there is actually matching an implicit "", right? Or does it operate on .* from the right? | 16:57 | |
| Ah, no, before operates from the right. docs.raku.org/language/regexes#Loo...assertions | 16:58 | ||
| Thank you! | |||
| m: say '-this-' ~~ rx:r / <?after '-'> <-[-]>* <?before '-'> /; | 17:21 | ||
| camelia | ｢this｣ | ||
| littlebenlittle[ | m: say '-this-' ~~ anon grammar { token TOP { <?after '-'> <-[-]>* <?before '-'> } }; | ||
| camelia | False | ||
| CIAvash | m6locks: I don't know SICP. Can you be a little bit more specific. From the haskell examples, you can do these things: | 17:37 | |
| m: my &mul_odd_squares = *.grep(* !%% 2).map(*²).reduce: &[×]; say mul_odd_squares [1..5] | 17:38 | ||
| camelia | 225 | ||
| CIAvash | m: say [×] [1..5].grep(* !%% 2).map(*²) | ||
| camelia | 225 | ||
| CIAvash | m: my &mul_odd_squares = &reduce.assuming(&[×]) ∘ &map.assuming(*²) ∘ &grep.assuming(* !%% 2); say mul_odd_squares [1..5] | ||
| camelia | 225 | ||
| CIAvash | m: [1..5] ==> grep(* !%% 2) ==> map(*²) ==> reduce(&[×]) ==> say() | 17:39 | |
| camelia | 225 | ||
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| rassoc | littlebenlittle[, not the most concise, but you can also extract in case things become more complicated: | 17:58 | |
| m: grammar G { token TOP { '-' ~ '-' <foo> }; token foo { <-[-]>* }}; G.parse("-this-")<foo>.say | |||
| camelia | ｢this｣ | ||
| rassoc | m: "-this-".match(/'-' $<foo>=.* '-'/)<foo>.say | ||
| camelia | ｢this｣ | ||
| rassoc | or utilize make/made | ||
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| m6locks | CIAvash: SICP is a programming course (and a similarly titled book) held at MIT, it uses Scheme to teach basic programming concepts mitpress.mit.edu/sites/default/fil...index.html | 18:20 | |
| but it has been a hobby of many to re-do the exercises in a language of choice | 18:24 | ||
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| rassoc | m6locks: do you have a repo with the full list of exercises? | 18:28 | |
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| CIAvash | weekly: github.com/CIAvash/qutebrowser-userscripts | 18:43 | |
| notable6 | CIAvash, Noted! (weekly) | ||
| CIAvash | weekly: www.ciavash.name/blog/2021/07/05/r...d-my-blog/ | ||
| notable6 | CIAvash, Noted! (weekly) | ||
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| sjn | lizmat++ # weekly raku news \o/ | 18:52 | |
| m6locks | rassoc: alas, no, but there's quite few related repos on github, this being one github.com/ivanjovanovic/sicp | 19:21 | |
| +a | |||
| also here: mitpress.mit.edu/sites/default/fil...index.html | 19:22 | ||
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