Description

The StringHandler class is an object-oriented wrapper around the Strings.h library, designed to make string manipulation in C++ more intuitive and maintainable. By encapsulating string operations into a dedicated class, it provides both static methods (for utility-style usage) and instance methods (for object-based manipulation).

This dual design makes the class suitable for quick one-off transformations as well as stateful workflows where a string undergoes multiple transformations through method chaining.

Technologies Used

  • C++ (OOP concepts: encapsulation, properties, method overloading)
  • Custom Utility Library: Strings.h
  • STL Components: string, vector
  • Static vs. Instance Methods for flexible usage patterns

Functionality & Features

Case Manipulation

  • Convert to uppercase/lowercase (entire string or by tokens).
  • Capitalize or lowercase first letters of words.
  • Invert case and reverse strings/sequences.

Validation & Checks

  • Test for vowels, letters, punctuation, special characters, operators, and brackets.
  • Detect string palindromes.

Counting Operations

  • Count vowels, uppercase, lowercase, letters, digits, spaces, or specific characters.
  • Count tokens with single-character or string delimiters.

Tokenization & Merging

  • Extract tokens into vectors.
  • Merge vectors/arrays back into delimited strings.

Trimming & Cleaning

  • Trim left/right/both sides.
  • Remove or keep only digits, letters, specials, punctuation, operations, or brackets.
  • Remove/keep a specific character.

Replacement Operations

  • Replace substrings globally, by count, or by tokens.
  • Case-sensitive or case-insensitive replacements.

Advanced Utilities

  • Convert numbers to text.
  • Provide both static methods for quick use and instance methods for modifying the object’s internal _value.

Implementation Highlights

  • Property-Like Access (Value with getter/setter) mimics higher-level language behavior while keeping C++ idiomatic.
  • Dual Approach: Every method is available in both static (utility-style) and non-static (object state mutation) forms.
  • Wrapper Architecture: Cleanly encapsulates the procedural Strings.h functions into a class, demonstrating OOP skills.
  • Consistency: Method names are intuitive and consistently mirror their underlying Strings.h counterparts.
  • Extendability: The design allows seamless integration of future string utilities without breaking existing workflows.

Conclusion

  • Provides a clean OOP abstraction over procedural string utilities.
  • Demonstrates mastery of encapsulation, static vs. instance method design, and class-based organization.
  • Balances flexibility (utility methods) with state management (object methods).
  • Bridges the gap between low-level string utilities and high-level, developer-friendly APIs.
  • Serves as a strong example of applying object-oriented design principles in C++.

How to Use

  1. Download the header file from the section below.
  2. Include it in your C++ project using #include "...", with the appropriate path between the double quotes.
  3. Make sure that you have Strings.h also installed.

Source Code

You can find the source code for this class here.

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