Introduction

Avalanche.Localization is .NET localization class library with pluralization features, [git], [www].

Localization in short. Add package reference to nupkg.

<PropertyGroup>
    <RestoreAdditionalProjectSources>https://avalanche.fi/Avalanche.Core/nupkg/index.json</RestoreAdditionalProjectSources>
</PropertyGroup>
<ItemGroup>
    <PackageReference Include="Avalanche.Localization"/>
    <PackageReference Include="Avalanche.Localization.Cldr"/>
</ItemGroup>

Localization files can be dropped into "Resources/<Key>" and "Resources/<Culture>/<Key>" either as embedded resource or as output copied resource.

Example: Resources/Namespace.l.yaml. Root file can supply texts for multiple languages. Pluralization rules are language specific. [Demo]

TemplateFormat: Brace
PluralRules: Unicode.CLDR41

Invariant:
- Culture: ""
  Items:
  - Key: Namespace.Apples
    Cases:
    - Text: "You've got an apple."
      Plurals: "0:cardinal:one:en"
    - Text: "You've got {0} apples."
      Plurals: "0:cardinal:other:en" 
  - Key: Namespace.Today
    Text: "Today is {0}."

Finnish:
- Culture: fi
  Items:
  - Key: Namespace.Apples
    Cases:
    - Text: "Sinulla on yksi omena."
      Plurals: "0:cardinal:one"
    - Text: "Sinulla on {0} omenaa."
      Plurals: "0:cardinal:other"
  - Key: Namespace.Today
    Text: "Tänään on {0}."

The following example Resources/sv/Namespace.l.yaml is loaded when 'sv' culture is requested.

TemplateFormat: Brace
PluralRules: Unicode.CLDR41

Swedish:
- Culture: sv
  Items:
  - Key: Namespace.Apples
    Cases:
    - Text: "Du har ett äpple."
      Plurals: "0:cardinal:one"
    - Text: "Du har {0} äpplen."
      Plurals: "0:cardinal:other"
  - Key: Namespace.Today
    Text: "Idag är det {0}."

Localization.Default.LocalizableTextCached provides texts that can localize and pluralize to culture argument.

// Create text
ILocalizedText text = Localization.Default.LocalizableTextCached["Namespace.Apples"];
// Get culture
IFormatProvider culture = CultureInfo.GetCultureInfo("sv");
// Create arguments
object[] arguments = { 2 };
// Print
WriteLine(text.Print(culture, arguments)); // "Du har 2 äpplen."

Localization.Default.LocalizingTextCached provides localizing texts that localize and pluralize to the active culture.

// Get active culture provider
ICultureProvider cultureProvider = CultureProvider.CurrentCulture.Instance;
// Get localizing text
ILocalizingText text = Localization.Default.LocalizingTextCached[(cultureProvider, "Namespace.Apples")];
// Assign language
CultureInfo.CurrentUICulture = CultureInfo.GetCultureInfo("sv");
// Assign format provider
CultureInfo.CurrentCulture = CultureInfo.GetCultureInfo("sv");
// Print to active culture
WriteLine(text.Print(new object[] { 2 })); // "Du har 2 äpplen."

The following GlobalUsings.cs can be used to include all extension methods.

global using Avalanche.Localization;
global using Avalanche.Template;
global using Avalanche.Utilities;
global using Avalanche.Utilities.Provider;

Interoperability:

• .NET 7.0 and upwards.

Class libraries:

• Avalanche.Localization.dll
• Avalanche.Localization.Abstractions.dll
• Avalanche.Localization.Extensions.dll
• Avalanche.Localization.Cldr.dll
• Avalanche.Localization.Asp.dll

Dependency libraries, direct and indirect:

• Avalanche.Template.dll
• Avalanche.Template.Abstractions.dll
• Avalanche.Tokenizer.dll
• Avalanche.Tokenizer.Abstractions.dll
• Avalanche.Utilities.dll
• Avalanche.Utilities.Abstractions.dll
• YamlDotNet

Tangential libraries:

• Avalanche.Message.Localization.dll