Capitalise first letter of every sentence

Question

How do I capitalise the first letter of every sentence in a string? Should I use .capitalisedString?

Answer 1

You can enumerate String per sentences by using NSStringEnumerationOptions.BySentences. But it detect a "sentence" only if the first character is upper-cased.

So, This may not be perfect, but you can try this:

import Foundation

let text:String = "lorem ipsum dolor elit, sed aliqfuas. imfs enim ad veniam, quis nostrud consequat? duis aute irure dolor in pariatur."

var result = ""
text.uppercaseString.enumerateSubstringsInRange(text.startIndex..<text.endIndex, options: .BySentences) { (_, range, _, _) in
//  ^^^^^^^^^^^^^^^^ enumerate all upper cased string

    var substring = text[range] // retrieve substring from original string

    let first = substring.removeAtIndex(substring.startIndex)
    result += String(first).uppercaseString + substring
}

// result -> "Lorem ipsum dolor elit, sed aliqfuas. Imfs enim ad veniam, quis nostrud consequat? Duis aute irure dolor in pariatur."