Easy.Tools.StringHelpers

Easy.Tools.StringHelpers is a high-performance, secure, and enterprise-ready .NET library providing a rich set of string extension methods. It is re-engineered with Zero-Allocation techniques for modern .NET, ReDoS protection for Regex operations, and strictly typed validation helpers.

Key Features

• ** High Performance & Zero-Allocation:** Utilizes Span<T>, string.Create, and ValueTuple on modern frameworks (.NET 6+) to minimize memory pressure.
• ** Security First:** - All internal Regex operations use Timeouts to prevent ReDoS (Regular Expression Denial of Service).
  • Random string/password generation uses CSPRNG (Cryptographically Secure Pseudo-Random Number Generator).
• ** Enterprise Validation:** Built-in validators for Credit Cards (Luhn Algorithm), JSON, XML, URLs, Emails (RFC-compliant regex), and more.
• ** Multi-Framework Support:** Runs everywhere. Supports .NET 10, .NET 9, .NET 8, .NET 6, .NET Standard 2.0/2.1, and .NET Framework 4.7.2+.

Installation

Install via NuGet Package Manager:

Install-Package Easy.Tools.StringHelpers

Or via .NET CLI:

dotnet add package Easy.Tools.StringHelpers

Usage Examples

1. Secure Validation

Validate inputs without throwing unnecessary exceptions.

using Easy.Tools.StringHelpers.Extensions; // Email & Password Validation if (userInput.IsValidEmail() && password.IsValidPassword(minLength: 10, requireSpecialChar: true)) { // Proceed safely... } // Credit Card Validation (Luhn Algorithm - Zero Allocation) if (creditCardString.IsValidCreditCard()) { // Payment logic... } // JSON Structure Check bool isJson = apiResponse.IsValidJson();

2. High-Performance Manipulation

Perform string operations with minimal memory footprint.

string title = " High Performance Code "; // Slug generation (Supports Turkish characters: ı->i, ğ->g) string slug = title.GenerateSlug(); // "high-performance-code" string description = "This is a very long text that needs to be shortened."; // Truncate using Span<T> optimizations string preview = description.Truncate(20, addEllipsis: true); // "This is a very lo..."

3. PII Masking & Security

Securely handle sensitive data.

string email = "admin@example.com"; Console.WriteLine(email.MaskEmail()); // "ad***@example.com" // Secure Random Password (CSPRNG) string secret = GenerationExtensions.RandomPassword(16);

Extension Categories

Category	Description
ValidationExtensions	Validate Email, Credit Card (Luhn), JSON, XML, URL, IP, Palindrome, etc.
SanitizeExtensions	High-perf removal of HTML tags, special chars, digits (Loop-based).
TruncateExtensions	Smart string truncation with ellipsis support (Zero-alloc).
ManipulationExtensions	General manipulation: RemoveWhitespace, SplitLines, Repeat, NormalizeSpaces.
MaskingExtensions	Mask sensitive data like Emails or IDs.
SearchExtensions	ContainsAny, ContainsAll, CountOccurrences, IsNumeric.
TransformationExtensions	GenerateSlug (Turkish support), ToInitials, Reverse.
FormatExtensions	ToSnakeCase, ToKebabCase, RemoveDiacritics.
GenerationExtensions	Secure Random String & Password generation.
ConversionExtensions	Safe type conversions (ToIntOrNull, To<T>).
CasingExtensions	ToTitleCase, ToInvariantLower, ToInvariantUpper.
PaddingExtensions	PadLeftWith, PadRightWith, PadBothWith (Center alignment).
LengthExtensions	Fluent length checks: LongerThan, ShorterThan, IsLengthBetween.
RegexExtensions	Safe Regex matching and extraction with Timeouts.
DateParsingExtensions	Detect if string contains a valid date.

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Contributing

Contributions and suggestions are welcome. Please open an issue or submit a pull request.

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License

This project is licensed under the MIT License.

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2025 Elmin Alirzayev / Easy Code Tools