[swift-users] CharacterSet vs Set<Character>
Quinn "The Eskimo!"
eskimo1 at apple.com
Mon Oct 3 02:43:55 CDT 2016
On 2 Oct 2016, at 19:02, Jean-Denis Muys via swift-users <swift-users at swift.org> wrote:
> The problem is, I could not find a simple way to convert from a character to a unicodeScalar.
As is often the case with string examples, it would help if you posted more about your context. With the details we have now your code could be written like this:
let vowels = CharacterSet(charactersIn: "AEIOU")
let char: UnicodeScalar = "E"
but I’m pretty sure that won’t help in your real app (-: So, my questions:
* Do you plan to use a fixed character set? Or is the character set itself built at runtime?
* Do you have specific knowledge of either of the inputs? Like that they’re all ASCII? Or normalised in a certain way?
* Specifically, where do the characters you’re trying to test (`char` in your example) come from? Do they represent user input, in which case they can be arbitrary Unicode? Or something more constrained
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Quinn "The Eskimo!" <http://www.apple.com/developer/>
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
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