Function gpg_nth_column

gpg.cpp:45–62

	return gpgbin;
}
static std::string gpg_nth_column (const std::string& line, unsigned int col)
{
	std::string::size_type	pos = 0;

	for (unsigned int i = 0; i < col; ++i) {
		pos = line.find_first_of(':', pos);
		if (pos == std::string::npos) {
			throw Gpg_error("Malformed output from gpg");
		}
		pos = pos + 1;
	}

	const std::string::size_type	end_pos = line.find_first_of(':', pos);

	return end_pos != std::string::npos ?
	       line.substr(pos, end_pos - pos) :
	       line.substr(pos);
}

// given a key fingerprint, return the key's UID (e.g. "John Smith <jsmith@example.com>")
std::string gpg_get_uid (const std::string& fingerprint)