If you think is-number can be replaced with a one-liner, you don't have the enterprise code mindset. What if the world gets more inclusive and MMXXIV, ½ and ⠼⠁ become recognized as numbers? 𒐍𓆾 were numbers in the past but what if people start assigning numeric value to other characters? Are 🖐🔟💯🆢🂵🀌🁅 numbers of the future???
/s

I'm not even all kidding, Regex implementations are split on whether "٣" matches \d.

[–] Contravariant@lemmy.world 27 points 2 months ago (6 children)

It's simple ⅯⅯⅩⅩⅣis a number, MMXXIV is not.

[–] ChaoticNeutralCzech 26 points 2 months ago* (last edited 2 months ago) (4 children)

You may argue that writiing 2024 as "MMXXIV" and not "ⅯⅯⅩⅩⅣ" is a mistake but while typists who'd use "2OlO" for "2010" (because they grew up using cost-reduced typewriters) are dying out, you'll never get everyone to use the appropriate Unicode for Roman numerals.

[–] Contravariant@lemmy.world 3 points 2 months ago* (last edited 2 months ago)

Wouldn't surprise me if even Unicode advices against using Roman numerals depending on meaning.

It was mostly a joke (though frankly if you try any implementation more complicated than that joke you're going to have a bad time).

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