int Kernel::do_switches()
{
try
{
// add -h, -v, etc
addBasicSwitchSet();
// add the options for the derived application
addSwitches();
// parse the command line
parseSwitches();
}
catch (std::exception const& e)
{
const std::string s("Caught exception handling switches: ");
printError(s + e.what());
return 1;
}
catch (...)
{
printError("Caught unknown exception handling switches");
return 1;
}
return 0;
}
void Kernel::doSwitches(int argc, const char *argv[], ProgramArgs& args)
{
StringList stringArgs;
OptionsMap& stageOptions = m_manager.stageOptions();
// Scan the argument vector for extra stage options. Pull them out and
// stick them in the list. Let the ProgramArgs handle everything else.
// NOTE: This depends on the format being "option=value" rather than
// "option value". This is what we've always expected, so no problem,
// but it would be better to be more flexible.
for (int i = 0; i < argc; ++i)
{
std::string stageName, opName, value;
if (parseOption(argv[i], stageName, opName, value))
{
Option op(opName, value);
stageOptions[stageName].add(op);
}
else
stringArgs.push_back(argv[i]);
}
try
{
addBasicSwitches(args);
// parseSimple allows us to scan for the help option without
// raising exception about missing arguments and so on.
args.parseSimple(stringArgs);
addSwitches(args);
if (!m_showHelp)
{
args.reset();
args.parse(stringArgs);
}
}
catch (arg_error& e)
{
throw pdal_error(e.m_error);
}
}
