Method assignPositional

pdal/util/ProgramArgs.hpp:460–476

Set the argument's value from the command-line args. If no value is provided for a required positional option, an arg_error exception is thrown. \note Not intended to be called from user code. \param vals The list of command-line args. */

      \param vals  The list of command-line args.
    */
    virtual void assignPositional(ArgValList& vals)
    {
        if (m_positional == PosType::None || m_set)
            return;
        for (size_t i = vals.firstUnconsumed(); i < vals.size(); ++i)
        {
            const std::string& val = vals[i];
            if ((val.size() && val[0] == '-') || vals.consumed(i))
                continue;
            setValue(val);
            vals.consume(i);
            return;
        }
        if (m_positional == PosType::Required)
            throw arg_error("Missing value for positional argument '" +
                m_longname + "'.");
    }

    /**
      Return whether a default value was provided for the argument.