---
title: LanguageTag
framework: packagedescription
role: symbol
role_heading: Structure
path: packagedescription/languagetag
---

# LanguageTag

A wrapper around an IETF language tag.

## Declaration

```swift
struct LanguageTag
```

## Overview

Overview To learn more about the IETF worldwide standard for language tags, see RFC5646.

## Topics

### Creating a Language Tag

- [init(extendedGraphemeClusterLiteral:)](packagedescription/languagetag/init(extendedgraphemeclusterliteral:).md)
- [init(stringLiteral:)](packagedescription/languagetag/init(stringliteral:).md)
- [init(unicodeScalarLiteral:)](packagedescription/languagetag/init(unicodescalarliteral:).md)
- [init(rawValue:)](packagedescription/languagetag/init(rawvalue:).md)

### Describing a Language Tag

- [description](packagedescription/languagetag/description.md)

### Default Implementations

- [CustomStringConvertible Implementations](packagedescription/languagetag/customstringconvertible-implementations.md)
- [ExpressibleByExtendedGraphemeClusterLiteral Implementations](packagedescription/languagetag/expressiblebyextendedgraphemeclusterliteral-implementations.md)
- [ExpressibleByStringLiteral Implementations](packagedescription/languagetag/expressiblebystringliteral-implementations.md)
- [ExpressibleByUnicodeScalarLiteral Implementations](packagedescription/languagetag/expressiblebyunicodescalarliteral-implementations.md)
- [RawRepresentable Implementations](packagedescription/languagetag/rawrepresentable-implementations.md)

## Relationships

### Conforms To

- [Copyable](swift/copyable.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Escapable](swift/escapable.md)
- [ExpressibleByExtendedGraphemeClusterLiteral](swift/expressiblebyextendedgraphemeclusterliteral.md)
- [ExpressibleByStringLiteral](swift/expressiblebystringliteral.md)
- [ExpressibleByUnicodeScalarLiteral](swift/expressiblebyunicodescalarliteral.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)

## See Also

### Localizing Package Resources

- [defaultLocalization](packagedescription/package/defaultlocalization.md)