NetCoreExtensions

A set of extensions to make working with some of the base class libraries easier.

• Documentation
  • Strings
  • Regular Expressions
  • Tasks
  • Hashing
  • Date/Time
  • Enums
• License

Documentation

Strings

using NetCoreExtensions.Strings

Shortcuts to static string methods

• value.IsNullOrEmpty()
• value.IsNotNullOrEmpty()
• value.IsNullOrWhitespace()
• value.IsNotNullOrWhitespace()
• values.Join(separator)

Whitespace/Empty defaults

• value.EmptyToNull()
• value.WhiteSpaceToNull()

Example: (" ".WhiteSpaceToNull() ?? "default") == "default"

Regular Expressions

using NetCoreExtensions.Regex

Shortcuts to static methods

• value.Match(pattern)
• value.Match(pattern, options)

var name = "My Name";
if (name.Match("^my", RegexOptions.IgnoreCase)) {
    // ...
}

TryMatch

• if (value.TryMatch(pattern, out var match)) { .. }
• if (value.TryMatch(pattern, options, out var match)) { .. }

var name = "My name is foo";
if (name.Match("my name is (?<name>[A-Za-z ]+)", out var match)) {
    Console.WriteLine(match.Groups["name"].Value); // displays "foo"
}

Typed Enumeration of Match results

When using Matches, returns a IEnumerable<Match> instead of MatchCollection, which means there is no need to do an explicit cast to Match.

foreach (var match in value.Matches(pattern)) { 
    Console.WriteLine(match.Value); 
}

Tasks

Task Timeout

Wrap async methods or tasks that don't provide timeout or cancelation support.

try { 

    var result1 = await SomethingAsync().TimeoutAfter(100);

    var result2 = await SomethingElseAsync().TimeoutAfter(1200, cancellationToken);

} catch (TaskCancelationException) {
    Console.WriteLine("Execution was canceled");
} catch (TaskTimeoutException ex) {
    Console.WriteLine($"Task timed out after {ex.Timeout}");
}

Hashing

using NetCoreExtensions.Security

• Sha1(), Sha256(), Sha384(), Sha512(), HmacSha1(), HmacSha256(), HmacSha384(), HmacSha512()methods for string and byte[]
• Return unix-style checksums, eg: "b444ac06613fc8d63795be9ad0beaf55011936ac"
• Defaults to Encoding.UTF8 for string inputs but can be overridden

Date/Time

using NetCoreExtensions.DateTime

TimeSpan.FromXXX() aliases

These work with int, long or double.

• 42.Milliseconds()
• 42.Seconds()
• 42.Minutes()
• 42.Hours()
• 42.Days()
• 42.Ticks()

Enums

using NetCoreExtensions.Enum

Get Names

• MyEnum.Val1.GetName()

String/Integer conversion

• 42.ToEnum<MyEnum>() returns Nullable<MyEnum>(null) if invalid
• 42.ToEnum(defaultValue) returns defaultValue if invalid
• "Val1".ToEnum<MyEnum>() returns Nullable<MyEnum> if invalid
• "Val1".ToEnum(defaultValue) returns defaultValue if invalid

License

This project is licensed under the MIT License.