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# tags(in:unit:scheme:options:tokenRanges:)

Returns an array of linguistic tags and token ranges for a given string range and linguistic unit.

```
func tags(in range: NSRange, unit: NSLinguisticTaggerUnit, scheme: NSLinguisticTagScheme, options: NSLinguisticTagger.Options = [], tokenRanges: AutoreleasingUnsafeMutablePointer<NSArray?>?) -> [NSLinguisticTag]
```

## Parameters

`range`

The range from which to return tags.

`unit`

The linguistic unit. See [`NSLinguisticTaggerUnit`](/documentation/Foundation/NSLinguisticTaggerUnit) for possible values.

`scheme`

The tag scheme. See [`NSLinguisticTagScheme`](/documentation/Foundation/NSLinguisticTagScheme) for possible values.

`options`

The linguistic tagger options to use. See [`NSLinguisticTagger.Options`](/documentation/Foundation/NSLinguisticTagger/Options) for possible values.

`tokenRanges`

Returns by reference an array of token ranges.

## Return Value

An array of the tags in the requested range.

## Discussion

When the returned array contains an entry that doesn’t have a corresponding tag scheme, that entry is an empty string (`""`).

---

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