NSLinguisticTagger problem

Question

Created Aug ’17

Replies 4

Boosts 0

Views 1.8k

Participants 4

I've tried to use this piece of code taked by Apple Documentation and don't work

let text = "The ripe taste of cheese improves with age."
let tagger = NSLinguisticTagger(tagSchemes: [.lexicalClass], options: 0)
tagger.string = text
let range = NSRange(location: 0, length: text.utf16.count)
let options: NSLinguisticTagger.Options = [.omitPunctuation, .omitWhitespace]
tagger.enumerateTags(in: range, unit: .word, scheme: .tokenType, options: options) { tag, tokenRange, _ in
      if let tag = tag {
          let word = (text as NSString).substring(with: tokenRange)
           print("\(word): \(tag)")
     }
}

this is the Apple's Doc

https://developer.apple.com/documentation/foundation/nslinguistictagger/identifying_parts_of_speech

Any solution?

Boost

Answer 1

kerfuffle OP

Aug ’17

What do you mean by "doesn't work"? Are you getting an error message?

0

Answer 2

Rufy OP

Aug ’17

No warning. no errors.

just jump the enumerateTags method and don't enter inside.

0

Answer 3

ManuelMB OP

Sep ’17

Change:

let tagger = NSLinguisticTagger(tagSchemes: [.lexicalClass], options: 0)

To:

let tagger = NSLinguisticTagger(tagSchemes: [.tokenType], options: 0)

https://developer.apple.com/documentation/foundation/nslinguistictagger/tokenizing_natural_language_text

When you initialize NSLinguisticTagger you need to include in tagSchemes the scheme that you will use in enumerateTags

let tagger = NSLinguisticTagger(tagSchemes: [.tokenType, .lexicalClass], options: 0)

0

Answer 4

sickk software OP

Feb ’18

What do you do if the scheme "does not exist"? https://stackoverflow.com/questions/48768919/device-vs-simulator-linguistic-schemes When testing on physical devices the console prints 3 schemes are available, none of which are the Lexical or Lemma scheme....

0