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Gustavo Benedito Costa

collator = new Intl.Collator('es', {
    caseFirst: "lower",
    ignorePunctuation: true,
    localeMatcher: "best fit",
    numeric: true,
    sensitivity: 'variant',
    usage: 'sort'
});


document.write(
    ["3", "2", "10", "40", "6", "4", "30", "33", "1", "Gustavo", "julho", "Klaus", "Ιαπωνία", "keyboard", "სკოლა", "último", "árbol", "γυναίκα", "uma", "água", "argentina", "Ángelo", "argelino", "unido", "женщина", "κήπος", "друг", "дом", "ბაღი", "люди",].sort(collator.compare)
);

this 'work' as far as that it can order the letters accordingly BUT .... ofc there is a but

// a != à is true in direct comparison which in ordering means 
console.log(['a', 'à'].sort(collator.compare)); // will remain the same

// however àb > az
// because a and à are only different in direct comparison and it seem it will use the 'base' sorting mechanism as soon as there are more than 1 letter in a string

console.log(['àb', 'az'].sort(collator.compare)); // will remain the same

so I guess there will be some manual work you need to do. in theory you can do a presort as you did before so the 'normal' ordering works and than use

String.prototype.localeCompare()

to reorder them based on the first letter of the string in a second iteration than you don't need some regex :).

does this help?

j, I have just tested, yes, this helps! The order is totally correct.

j, as you are Austrian, verify if the umlauts are correctly ordered, because you added "es", which is designed only for Spanish. I want to sort naturally all, independently of the language, but preserving the correct order of numbers.

Gustavo Benedito Costa the locale just adds some extra semantics where i could sort phonetic as well. with my configuration I did not see any difference between AT or ES so far :)

it should only affect the position of the ö,ä,ü - 'umlaute' which probably have a higher cardinality than à in german. :)