String Singularization

[AlfonsoUceda]

Feature

Introduce singularization for strings.

How

It adds a new public API method: Utils::String#singularize, which returns a new singularized instance of the same type.

string = Lotus::Utils::String.new("flowers")
string.singularize       # => "flower"
string.singularize.class # => Lotus::Utils::String

The implementation is delegated to a new module: Lotus::Utils::Inflector. It exposes .singularize which works with Ruby's String.

Lotus::Utils::Inflector.singularize("flowers")       # => "flower"
Lotus::Utils::Inflector.singularize("flowers").class # => String

Sigunlaritazion is idempotent.

Lotus::Utils::Inflector.singularize(
  Lotus::Utils::Inflector.singularize("user")
) # => "user"

It respects the case:

Lotus::Utils::Inflector.singularize("Applications") # => "Application"

[jodosha]

Me and @AlfonsoUceda had a private chat where we decided to mark as private API all these inflection features, as I'm not happy with the implementation, performance and results.

As now, they offer a great support to complete the feature that requested them: hanami/router#51

For this reason, we decide to and review it later.