---
title: LanguageTag
framework: swift-package-manager
role: symbol
role_heading: Structure
path: swift-package-manager/documentation/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:)](swift-package-manager/documentation/packagedescription/languagetag/init(extendedgraphemeclusterliteral:).md)
- [init(stringLiteral:)](swift-package-manager/documentation/packagedescription/languagetag/init(stringliteral:).md)
- [init(unicodeScalarLiteral:)](swift-package-manager/documentation/packagedescription/languagetag/init(unicodescalarliteral:).md)
- [init(rawValue:)](swift-package-manager/documentation/packagedescription/languagetag/init(rawvalue:).md)
- [rawValue](swift-package-manager/documentation/packagedescription/languagetag/rawvalue.md)

### Describing a Language Tag

- [description](swift-package-manager/documentation/packagedescription/languagetag/description.md)

### Hashing

- [hash(into:)](swift-package-manager/documentation/packagedescription/languagetag/hash(into:).md)
- [hashValue](swift-package-manager/documentation/packagedescription/languagetag/hashvalue.md)

### Operator Functions

- [!=(_:_:)](swift-package-manager/documentation/packagedescription/languagetag/!=(_:_:).md)

### Default Implementations

- [CustomStringConvertible Implementations](swift-package-manager/documentation/packagedescription/languagetag/customstringconvertible-implementations.md)
- [Equatable Implementations](swift-package-manager/documentation/packagedescription/languagetag/equatable-implementations.md)
- [ExpressibleByExtendedGraphemeClusterLiteral Implementations](swift-package-manager/documentation/packagedescription/languagetag/expressiblebyextendedgraphemeclusterliteral-implementations.md)
- [ExpressibleByStringLiteral Implementations](swift-package-manager/documentation/packagedescription/languagetag/expressiblebystringliteral-implementations.md)
- [ExpressibleByUnicodeScalarLiteral Implementations](swift-package-manager/documentation/packagedescription/languagetag/expressiblebyunicodescalarliteral-implementations.md)
- [RawRepresentable Implementations](swift-package-manager/documentation/packagedescription/languagetag/rawrepresentable-implementations.md)

## Relationships

### Conforms To

- Swift.Copyable
- Swift.CustomStringConvertible
- Swift.Equatable
- Swift.Escapable
- Swift.ExpressibleByExtendedGraphemeClusterLiteral
- Swift.ExpressibleByStringLiteral
- Swift.ExpressibleByUnicodeScalarLiteral
- Swift.Hashable
- Swift.RawRepresentable

## See Also

### Localizing Package Resources

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