Identifying parts of speech

.swift

import SwiftUI
import NaturalLanguage

struct TaggedTextView: View {
    
    let text = "This is your life. Do what you love and do it often."
    let text2 = "― Holstee Manifesto, The Wedding Day (extract)"
    let textButton = "Tag the text"
    
    @State private var taggedText: [String] = []
    @State private var taggedTextOn = false
    
    var body: some View {
        ZStack {
        Color.red.opacity(0.65).ignoresSafeArea()
            VStack(alignment: .leading) {
                if taggedTextOn {
                    ForEach(taggedText, id: \.self) {
                        Text($0).font(.system(size: 40)).bold().fontDesign(.rounded)
                    }
                } else {
                    Text(text).font(.system(size: 80)).bold().fontDesign(.rounded).padding(.bottom)
                    Text(text2)
                        .padding(.bottom)
                    Button(textButton) {
                        runTaggedText()
                    }.buttonStyle(.borderedProminent)
                }
            }
            .padding(25)
        }
    }
    
    func runTaggedText() {
        taggedTextOn = true
        let tagger = NLTagger(tagSchemes: [.lexicalClass])
        tagger.string = text
        let options: NLTagger.Options = [.omitPunctuation, .omitWhitespace]
        tagger.enumerateTags(in: text.startIndex..<text.endIndex, unit: .word, scheme: .lexicalClass, options: options) { tag, tokenRange in
            if let tag = tag {
                taggedText.append("\(text[tokenRange]): \(tag.rawValue)")
            }
            return true
        }
    }
}

#Preview {
    TaggedTextView()
}