Function parseKeyspace

KeyFinder/main.cpp:162–188

* Parses the start:end key pair. Possible values are: start start:end start:+offset :end :+offset */

 :+offset
 */
bool parseKeyspace(const std::string &s, secp256k1::uint256 &start, secp256k1::uint256 &end)
{
    size_t pos = s.find(':');

    if(pos == std::string::npos) {
        start = secp256k1::uint256(s);
        end = secp256k1::N - 1;
    } else {
        std::string left = s.substr(0, pos);

        if(left.length() == 0) {
            start = secp256k1::uint256(1);
        } else {
            start = secp256k1::uint256(left);
        }

        std::string right = s.substr(pos + 1);

        if(right[0] == '+') {
            end = start + secp256k1::uint256(right.substr(1));
        } else {
            end = secp256k1::uint256(right);
        }
    }

    return true;
}

void usage()
{