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This channel is intended for people just starting with the Raku Programming Language (raku.org). Logs are available at irclogs.raku.org/raku-beginner/live.html Set by lizmat on 8 June 2022. |
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| thowe | in Raku regex, how do you match NOT a character. Like, NOT 'a'? Wouldn't it be something like !a? | 02:34 | |
| I'm trying to match "a string of any characters that doesn't include a tab". | 02:35 | ||
| I came up with <-[\t]>+ is that right? seems to work. | 02:40 | ||
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| habere-et-disper | Hello Rackoons ! o/\o | 08:00 | |
| What's are some other ways of saying `[==] @array` ? | |||
| I feel like I want to say `@array.all ...` but get stuck. | 08:01 | ||
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| nemokosch | Probably not | 08:02 | |
| habere-et-disper | Okay -- thanks. | 08:06 | |
| nemokosch | There could be something like, "is the number of unique values 1" but i don't think that's better than the reduction | 08:08 | |
| habere-et-disper | Thanks -- I forget about `unique`, like I do `first`. | ||
| nemokosch | With all, what about @array.head == @array.skip.all | 08:09 | |
| habere-et-disper | Clever, but you're right that the intent is getting lost. | 08:10 | |
| One other one... here I'm looking for patterns of 2 of a kind together with 3 of a kind in a dice roll: `[5,5,4,5,4].Bag.values.sort ~~ (2,3)`. Does that look iffy ? | 08:11 | ||
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| nemokosch | It would be nice imo to get away without the sort | 08:14 | |
| habere-et-disper | That's what I was aiming for too. | 08:15 | |
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| nemokosch | m: [5,5,4,5,4].Bag.values ~~ Set(2,3) andthen .say | 08:18 | |
| Raku eval | True | ||
| nemokosch | worth a try | ||
| Yeah, this seems okay. But then at this point actually we might as well just use (==) | 08:21 | ||
| m: [5,5,4,5,4].Bag.values (==) (2,3) andthen .say | |||
| Raku eval | True | ||
| habere-et-disper | m: [5,5,4,5,4].Bag.values.contains( 2 & 3) | 08:39 | |
| camelia | ( no output ) | ||
| habere-et-disper | m: [5,5,4,5,4].Bag.values.contains( 2 & 3).say | ||
| camelia | all(True, True) | ||
| nemokosch | uh oh, I think contains is the wrong one | 08:40 | |
| yes, this works on a string | |||
| m: (1 xx 12).Bag.values.contains( 2).say | 08:41 | ||
| Raku eval | True | ||
| nemokosch | but anyway, this would only be the (<=) direction of the check | 08:43 | |
| habere-et-disper | Right. So why not grep : | 08:44 | |
| m: [1,1,2,1,2].Bag.values.grep( 2 & 3 ).so.say | |||
| camelia | False | ||
| nemokosch | contains (besides being a string search) acts on individual values | 08:46 | |
| grep, however, is a matcher kind of function; it doesn't distribute over the junction | |||
| now good luck finding a value that matches to 2 & 3 😄 | 08:47 | ||
| m: [1,1,2,1,2].Bag.values.grep( 2 | 3 ).so.say | |||
| Raku eval | True | ||
| nemokosch | "is there at least one value that is either 2 or 3" | ||
| not too useful or readable | |||
| habere-et-disper | I understand now. Thank you for explaining. (y) | 08:49 | |
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| nemokosch | 🍬 | 08:50 | |
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