Maestria.Extensions

• What is Maestria.Extensions?
• What is Maestria Project?
• Where can I get it?
• How do I get started?
• Data Types
  • Result and Result
  • Try<TSuccess, TFailure>
• Settings
• Full usage documentations
• Extra documentations

If my contributions helped you, please help me buy a coffee :D

What is Maestria.Extensions?

Extension function pack to increase productivity and improve source code writing. By default, all extension methods are safe.

What is Maestria Project?

This library is part of Maestria Project.

Maestria is a project to provide productivity and elegance to your source code writing.

Where can I get it?

Install the Maestria.Extensions using the command line:

dotnet add package Maestria.Extensions

How do I get started?

First, import "Maestria.Extensions" reference:

using Maestria.Extensions;

Then in your application code, use fluent syntax:

// 1. Numeric rounding
using Maestria.Extensions;
decimal value = 3.14159m;
var rounded = value.Round(2); // 3.14
// Detailed: [Number extensions](docs/usage/number.md)

// 2. Range check
int score = 85;
bool isGradeB = score.Between(80, 89); // true
// Detailed: [Comparable extensions](docs/usage/comparable.md)

// 3. Enum display name
DayOfWeek day = DayOfWeek.Monday;
string name = day.GetDisplayName(); // "Monday"
// Detailed: [Enum extensions](docs/usage/enum.md)

// 4. Collection has items
var list = new[] { 1, 2, 3 };
bool has = list.HasItems(); // true
// Detailed: [Enumerable extensions](docs/usage/enumerable.md)

// 5. String trimming
string path = "/folder/";
var trimmed = path.TrimEnd("/"); // "/folder"
// Detailed: [String extensions](docs/usage/string.md)

// 6. XML escaping
string xml = "<tag>\"Value\" & More</tag>";
var escaped = xml.EscapeXml(); // "&lt;tag&gt;&quot;Value&quot; &amp; More&lt;/tag&gt;"
// Detailed: [String extensions](docs/usage/string.md)

// 7. Base64 encoding
string text = "hello";
var b64 = text.ToBase64(); // "aGVsbG8="
// Detailed: [String extensions](docs/usage/string.md)

// 8. Guid handling
Guid guid = Guid.Empty;
var newGuid = guid.IfEmpty().Then(Guid.NewGuid());
// Detailed: [Other extensions](docs/usage/other.md)

// 9. Pipeline example
var result = "12345"
    .OnlyNumbers()
    .Format("{0:###-##}"); // "123-45"
// Detailed: [String extensions](docs/usage/string.md)

Data Types

The library ships with two expressive result types that eliminate boilerplate error handling:

Result and Result<TValue>

// Result — implicit conversions keep method signatures clean
public Result Save(Order order)
{
    if (order == null) return "Order cannot be null"; // implicit failure
    // ...
    return true; // implicit success
}

var result = Save(order);
if (result) Console.WriteLine("Saved!");
else        Console.WriteLine(result.Message);

Try<TSuccess, TFailure>

// Try<TSuccess, TFailure> — distinct types for success and failure
public Try<OrderCreated, ValidationError> Submit(Order order) { ... }

var r = Submit(order);
if (r) Console.WriteLine($"Order ID: {r.Value.Id}");
else   Console.WriteLine($"Error {r.Failure.Code}: {r.Failure.Message}");

See docs/usage/datatypes.md for full documentation, implicit conversion rules, Result<T>, and advanced usage.

Settings

It's possible set default settings for library:

MaestriaExtensionsSettings.Configure(config => config
    .FloatingPointTolerance(<default-float-and-double-comparasion-tolerance>) // Default is 0.00001f
    .DefaultEncoding(<encoding>) // Default if Encoding.UTF8

Full usage documentations

There are many more extension methods available. See the full documentation:

Extra documentations

See additional documentations at docs folder.

• changelog.md: List of changes by version and breaking changes.
• ci-workflow.md: Description of the CI workflow used in the project.
• contributing.md: How to contribute to the project.

If my contributions helped you, please help me buy a coffee :D