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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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| stevied | what response is the scary red messages at raku.land/github:labster/File::Directory::Tree trying to elicit? | 16:00 | |
| should I be worried about using the module? | |||
| does this mean the module might be hacked? | 16:01 | ||
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| Guest14 | Hi | 16:04 | |
| stevied | hi | 16:05 | |
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| rf | How can I restrict a match capture? For example if I want to capture the match between two '/', $my-text ~~ /^ '/'$<m>=[.*]'/' $/, in this case it always keeps the '/' on the end, how can I just match what's between? | 16:18 | |
| m: '/hello-bob/' ~~ /^ '/'$<m>=[.*]'/' $/; | 16:20 | ||
| camelia | ( no output ) | ||
| stevied | captures are done with open/close parens | ||
| rf | m: '/hello-bob/' ~~ /^ '/'$<m>=([.*])'/' $/; | ||
| camelia | ( no output ) | ||
| rf | Could you show me an example? :D | 16:21 | |
| stevied | yeah | ||
| i forget how to use this bot. hold on. | |||
| rf | No problem! | 16:22 | |
| stevied | m: 'hello-bob' ~~ /^(\w).*/; say $0; | 16:23 | |
| here, the first letter is captured into the variable $0 | |||
| m: 'hello-bob' ~~ /^(\w)(\w).*/; say $0; say $1; | 16:24 | ||
| next set of parens is captured with $1, and so on | 16:25 | ||
| rf | m: 'hello-bob' ~~ /^(\w)(\w).*/; say $0; say $1; | ||
| camelia | ｢h｣ ｢e｣ |
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| rf | I see, but can I do this named? | ||
| stevied | yes | ||
| rf | m: '/hello-bob/' ~~ /^'/'$<m>=(.*)'/'/; say $0; say $1; | 16:26 | |
| camelia | Nil Nil |
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| rf | m: '/hello-bob/' ~~ /^ '/' $<m>=(.*) '/' $/; say $0; say $1; | ||
| camelia | Nil Nil |
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| rf | m: '/hello-bob/' ~~ /^ '/' $<m>=(.*) '/' $/; say $<m>; | ||
| camelia | ｢hello-bob｣ | ||
| rf | Ah | ||
| Nice. Thank you! | |||
| stevied | docs.raku.org/language/regexes#Nam...ion_syntax | 16:27 | |
| np | |||
| rf | One more little regex thing, '/hello-bob' ~~ /^ '/' $<m>=(.*) '/'? $/ | 16:36 | |
| How can I stop it from matching the / in this case, maybe it's there maybe it's not but I don't want to see it. | |||
| m: '/hello-bob' ~~ /^ '/' $<m>=(.*) '/'? $/; say $<m>; | 16:37 | ||
| camelia | ｢hello-bob｣ | ||
| rf | m: '/hello-bob/' ~~ /^ '/' $<m>=(.*) '/'? $/ say $<m>; | ||
| camelia | ===SORRY!=== Error while compiling <tmp> Two terms in a row at <tmp>:1 ------> /hello-bob/' ~~ /^ '/' $<m>=(.*) '/'? $/⏏ say $<m>; expecting any of: infix infix stopper statement end s… |
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| rf | m: '/hello-bob/' ~~ /^ '/' $<m>=(.*) '/'? $/; say $<m>; | ||
| camelia | ｢hello-bob/｣ | ||
| rf | I tried the m:1st adverb but it still died | 16:38 | |
| stevied | don't use (.*) | ||
| rf | Err, produced the wrong result. | ||
| stevied | you want to use a negation match instead and matching anything that is NOT a / | ||
| that's done with <-[/]> | 16:39 | ||
| that's done with `<-[/]>` | |||
| rf | m: '/hello-bob/' ~~ /^ '/' $<m>=(.*) <-[/]>? $/; say $<m>; | 16:40 | |
| camelia | ｢hello-bob/｣ | ||
| stevied | m: '/hello-bob/' ~~ /^ '/' $<m>=(<-[/]>) '/'? $/; say $<m> | ||
| rf | Ahh, see I tried what I just wrote above last night when trying this but I see now. I need to match anything but the /. | 16:41 | |
| Thanks again :D | |||
| stevied | np | ||
| i forgot a '+' sign on mine, hold on | 16:42 | ||
| m: '/hello-bob/' ~~ /^ '/' $<m>=(<-[/]>+) '/'? $/; say $<m> | |||
| there we go | |||
| rf | m: '/hello-bob/' ~~ /^ '/' $<m>=(<-[/]>+) '/'? $/; say $<m> | ||
| camelia | ｢hello-bob｣ | ||
| rf | Yeah, perfect. Thanks a lot! | ||
| stevied | oh, the other option is to make the capture non-greedy with `(.*?)` | 16:43 | |
| with non-greedy, it will not suck up everything to the end. | 16:44 | ||
| I think that would also work in your case | |||
| m: '/hello-bob/' ~~ /^ '/' $<m>=(.*?) '/'? $/; say $<m> | |||
| yeah, so that works, too. thought it's probably a little slower | 16:45 | ||
| yeah, so that works, too. though it's probably a little slower | |||
| rf | Cool, I'll test out both | 17:00 | |
| I though the 1st adverb might have done it, but it counted it all as one match too :( | 17:01 | ||
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| JsExplorerNeil | Hi. I was wondering - is Raku ready for production use on jvm, js and moarvm? I just need an awesome scripting language so it doesn't need to be "blazingly fast" 😉 | 18:59 | |
| Nemokosch | Hello. MoarVM is the "state of art" runtime, JVM might work but doesn't necessarily have advantages and the JS backend is mostly a "proof of concept" at this point, simply because of the lack of resources for implementing it properly. | 19:25 | |
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