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I have this predicate: 

let searchPredicate = NSPredicate(format: "SELF LIKE[cd] %@", searchString)

which I'm using for filtering array and finding the needed string.

Could you explain what this argument "SELF LIKE[cd] %@" means?

JAL
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Vitya Shurapov
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    See [this answer](http://stackoverflow.com/a/11597537/5389870). – xoudini Jan 17 '17 at 16:16
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    `[cd]` is case and diacritic insensitive, everything else is described in [Predicate Programming Guide](https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/Predicates/Articles/pSyntax.html) – vadian Jan 17 '17 at 16:21

1 Answers1

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To start with, NSPredicate(format:) is like String(format:), so the %@ is replaced with the contents of searchString.

[cd] means case and diacritic insensitive - so john Jonés would match John Jones

LIKE is used to match with a wildcard (* = 0 or more chars, ? = 1 character). so LIKE Joh* would match with John Jones

Ashley Mills
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