Multiple range on NSMutableAttributedString - ios

Question

i'm trying to set bold font two different string range in a string. I know how to do it range by range but is it possible to do it one time with multiple range. I don't like to repeat code.
Here's my code
if let rankString = trophy.fullRank.value {
var secondRankString = "some string"
var string = SRUtils.LocalizedString("unlocked.description", comment: "")
string = String(format: string, trophy.trophiesNumber.value!, rankString)
let atStr = NSMutableAttributedString(string: string)
//Here i need to add rankString and other range
let textRange = (string as NSString).range(of: rankString)
if let font = UIFont(name: "HelveticaNeue-Bold", size: 16) {
atStr.addAttribute(NSFontAttributeName, value: font, range: textRange)
self.trophyDescription.value = atStr
}
}
If for example:
var string = "Hello do you need a cat"
var rankString = "cat"
Result with my code: "Hello do you need a cat"
What i need it's :
var mytring = "Hello do you need a cat"
var rankString = "cat"
var secondRankString = "need"
Excepted result : "Hello do you need a cat"
So how i can, in swift 3, add multiple range to apply, without multiple declaration of variable... is it possible ?

Answer 1

two or more, use a for — Edsger W. Dijkstra
This code
import UIKit
let string = "Hello do you need a cat"
let attributedString = NSMutableAttributedString(string: string)
if let font = UIFont(name: "HelveticaNeue", size: 16) {
attributedString.addAttribute(NSFontAttributeName, value: font, range: NSRange(location:0, length: string.characters.count))
}
let highlightedWords = ["cat", "need"]
for highlightedWord in highlightedWords {
let textRange = (string as NSString).range(of: highlightedWord)
if let font = UIFont(name: "HelveticaNeue-Bold", size: 16) {
attributedString.addAttribute(NSFontAttributeName, value: font, range: textRange)
}
}
let label = UILabel(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
label.attributedText = attributedString
label.sizeToFit()
results in
i was just searching an other way to do it without for or multiple declaration
A for loop can always be expressed as a more generell while loop. But I find for loops easier to understand.
var highlightedWords = ["cat", "need"]
repeat {
if let highlightedWord = highlightedWords.popLast() {
let textRange = (string as NSString).range(of: highlightedWord)
if let font = UIFont(name: "HelveticaNeue-Bold", size: 16) {
attributedString.addAttribute(NSFontAttributeName, value: font, range: textRange)
}
}
} while highlightedWords.count > 0