Function ExtractContent

test/test_cli.cpp:68–77

takes cli> sub> foo bar sub> and gives foo bar */

*/
string ExtractContent(const stringstream& o)
{
    auto content = o.str();
    // last line
    auto lastNL = content.find_last_of('\n');
    auto lastLine = content.substr(lastNL+1);
    content = content.substr(0, lastNL);
    auto pos = content.find(lastLine);
    return content.substr(pos+lastLine.size());
}

void UserInput(Cli& cli, stringstream& oss, const string& input)
{