A Swift framework for building terminal applications using The Elm Architecture.
Ashen is a Swift framework for building terminal applications using The Elm Architecture. It allows developers to create text-based user interfaces declaratively, where the UI is rendered based on the application state, and state changes are handled through a message-driven update system. This approach simplifies terminal app development by making programs more predictable and testable.
Swift developers who need to build interactive terminal applications, such as CLI tools, dashboards, or text-based interfaces, and prefer a declarative, functional programming style.
Developers choose Ashen for its clean, Elm-inspired architecture that brings modern UI paradigms to terminal development, offering a structured way to manage state and side effects with built-in components and event handling.
A framework for writing terminal applications in Swift.
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Enforces a pure functional update cycle where the UI is a function of state, similar to Elm and SwiftUI, making state changes predictable and easy to test, as demonstrated in the `update` function that processes messages to return new models.
Includes essential views like `Text`, `Input`, `Box`, and layout components such as `Flow` and `Scroll`, reducing boilerplate for common terminal UI elements and enabling rapid prototyping.
The `Command` system seamlessly integrates async operations like HTTP requests, with results delivered as messages, allowing clean separation of side effects from UI logic, as shown in the `Http.get` example.
Offers a fluent API for styling and layout with modifiers like `.padding()` and `.aligned()`, familiar to SwiftUI users and enhancing code readability for terminal interface customization.
The README admits that some views, such as `ListView`, are not fully implemented, which may require developers to build missing UI elements from scratch or work around limitations.
As a Swift-specific terminal framework, it has a smaller user base and fewer third-party extensions compared to cross-platform or more popular libraries, potentially limiting resources and community help.
Developers unfamiliar with functional patterns like message-passing and pure updates may find the paradigm shift challenging, despite similarities to SwiftUI, as it requires adopting a specific architectural mindset.