Find Range of substring in NSMutableAttributedString

Question

I have AttributedString with emoji like this "🤣🤣🤣 @Mervin tester 🤣🤣🤣"

Now I need to find a range of Mervin in this attributed String.

let attributedString = NSMutableAttributedString(string: "🤣🤣🤣 @Mervin tester 🤣🤣🤣")

let range = // range for "Mervin" in above String.

Thank you.

Do you know Mervin? Or you are looking for @SomeName? Else, let range = attributedString.string.rangeOfString("Marvin") (in pseudo code, I'm not sure of the Swift methods names, but completion should help you). — Larme
– Larme, Commented Jun 29, 2017 at 8:27
@Larme Thank you, it's working. I was trying same with utf-8 string so it was showing the wrong result. — Ujesh
– Ujesh, Commented Jun 29, 2017 at 13:05

Oleg Gordiichuk · Accepted Answer · 2017-06-29 09:16:37Z

24

This extension should help you.

extension NSAttributedString {
    func rangeOf(string: String) -> Range<String.Index>? {
        return self.string.range(of: string)
    }
}

Usage:

attributedString.rangeOf(string: "Mervin")

answered Jun 29, 2017 at 9:16

Oleg Gordiichuk

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1 Comment

Satheeshkumar Naidu Over a year ago

I am getting wrong rang and as well how to find the ranges when you have multiple Mervin in attributed string

Bogdan Farca · Accepted Answer · 2023-08-13 15:16:42Z

0

I wanted something similar but for AttributedString instead. It took me a while to find the solution, so I think I may document it here since this is the first search hit for my question.

let attributedString = AttributedString("🤣🤣🤣 @Mervin tester 🤣🤣🤣")
let substring = "Mervin"

// Iterating through all the occurrences of `substring`.
for range in attributedString.characters.ranges(of: substring) {
   // Do something with the current range
   attributedString[range].foregroundColor = .red
}

answered Aug 13, 2023 at 15:16

Bogdan Farca

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