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[14:59] <disbot4> <simon_sibl> maybe a silly question but when using sub MAIN, if I make a subset which accept only 'tcp' or 'udp' for example, is there a good way to show an error to the user if they type something else ?

[14:59] <disbot4> <simon_sibl> because the behavior otherwise is simply to show the usage without explanation on why what the user typed as command isnt valid

[14:59] <disbot4> <simon_sibl> I have something like:

[15:00] <disbot4> <simon_sibl> subset MODE of Str where { $ eq 'tcp'|'udp' or die "Error: Invalid mode '$'. Choose 'tcp' or 'udp'." };

[15:00] <disbot4> <simon_sibl> but then it shows a stack trace, which I would like to be optional if thats doable

[15:06] <disbot4> <simon_sibl> alright: note and exit 1 it is xD

[15:14] <disbot4> <simon_sibl> although another question, why Int named arguments in MAIN requires a '=' ?

[15:14] <disbot4> <simon_sibl> I cannot do --port 3, I have to do --port=80

[15:17] <disbot4> <librasteve> guifa: lol … since this is “beginner” channel, I tend to think that stuff like ::?CLASS:U: is unlikely to be the first port of call, I am curious to know where that would beat something like

[15:17] <disbot4> <simon_sibl> whats interesting is that in the doc: https://docs.raku.org/language/create-cli, it shows this "[--length=<Int>]" for Int but when I use it, it shows "[--length[=<Int>]]"

[15:19] <disbot4> <librasteve> class Shape {method point(Shape:U: $x,$y) {…} }

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[16:35] <librasteve_> https://rakudoweekly.blog/2026/06/22/2026-25-dutch-art/

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