: mExe(argv[0])

{

const std::set<std::string> args(argv + 1, argv + argc);

for (const auto& arg : args) {

if (arg.empty())

continue; // empty argument

if (arg[0] == '-') {

if (arg == "-q")

mQuiet = true;

else if (arg == "-h" || arg == "--help")

mHelp = true;

else if (arg == "-n")

mSummary = false;

else if (arg == "-d")

mDryRun = true;

else if (arg == "-x")

mExcludeTests = true;

else

mErrors.emplace_back("unknown option '" + arg + "'");

continue; // command-line switch

}

const auto pos = arg.find("::");

if (pos == std::string::npos) {

mWhichTests[arg] = {}; // run whole fixture

continue;

}

const std::string fixture = arg.substr(0, pos);

const auto it = mWhichTests.find(fixture);

if (it != mWhichTests.cend() && it->second.empty())

continue; // whole fixture is already included

const std::string test = arg.substr(pos+2);

mWhichTests[fixture].emplace(test); // run individual test

}