Regex test

RegexTest.cpp

// This file is a "Hello, world!" in C++ language by GCC for wandbox.
#include <iostream>
#include <regex>

int main()
{
    std::regex attackRegex("\\+([[:digit:]]+) Attack");
    std::string text = "Raid Leader is granting this minion +1 Attack";
    std::smatch values;
    
    if (std::regex_search(text, values, attackRegex))
    {
        std::cout << values[1].str().c_str() << '\n';
    }
    else
    {
        std::cout << "Not found\n";
    }
    
    return 0;
}