utf8string-lib

A modern C++23 library for safe, convenient UTF-8 string & character handling.

Features

• Complete UTF8Char & UTF8String types
• Full Unicode-aware operations:
  • Character classification (is_alpha, is_digit, is_space, etc.)
  • Case conversion (to_upper, to_lower)
  • Substring, trim, concatenation, comparison
  • Iteration & index access by Unicode code points
• Zero-overhead view-like design
• Clean C++23 module interface
• No external dependencies

Requirements

• C++23 or later
• Compiler with modules support:
  • GCC 14+
  • Clang 17+
  • MSVC (VS 2022)

How to Compile & Test

g++ -std=c++23 -fmodules core.hpp test.cpp -o test
./test

Usage Example

import std;
import utf8;

int main() {
    utf8::UTF8String str(u8"Hello 你好 🌍");
    std::println("{}", str);
    std::println("length (code points): {}", str.size());
}

Authors

• azhz1107cat
• Satklomi

License

MIT