Type Property


Classifies tokens according to class: part of speech, type of punctuation, or whitespace.


static let lexicalClass: NSLinguisticTagScheme


For possible values, see Lexical Classes.

The lexical class of a tag is a further distinction of its token type. Token types and lexical classes have the following correspondence:

See Also


static let tokenType: NSLinguisticTagScheme

Classifies tokens according to their broad type: word, punctuation, or whitespace.

static let nameType: NSLinguisticTagScheme

Classifies tokens according to whether they are part of a named entity.

static let nameTypeOrLexicalClass: NSLinguisticTagScheme

Classifies tokens corresponding to names according to nameType, and classifies all other tokens according to lexicalClass.

static let lemma: NSLinguisticTagScheme

Supplies a stem form of a word token, if known.

static let language: NSLinguisticTagScheme

Supplies the language for a token, if one can be determined.

static let script: NSLinguisticTagScheme

Supplies the script for a token, if one can be determined.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

Learn more about using Apple's beta software