Method createFromParameters

plugins/autoclothing.cpp:132–163

FIXME: when C++23, use std::expected here

    //FIXME: when C++23, use std::expected here
    static std::optional<ClothingRequirement> createFromParameters(color_ostream &out, vector<string> &parameters)
    {
        df::job_material_category material_category;
        if (parameters.size() < 1) return std::nullopt;

        size_t idx = 0;
        if (parameters[0] == "clear") idx++;

        if (parameters.size() < idx + 1) return std::nullopt;

        if (!set_bitfield_field(&material_category, parameters[idx], 1))
        {
            out << "Unrecognized material type: " << parameters[idx] << endl;
            return std::nullopt;
        }

        if (auto req = setItem(parameters[idx+1]); !req)
        {
            out << "Unrecognized item name or token: " << parameters[idx+1] << endl;
            return std::nullopt;
        }

        else if (!validateMaterialCategory(*req)) {
            out << parameters[idx] << " is not a valid material category for " << parameters[idx+1] << endl;
            return std::nullopt;
        }
        else
        {
            req->material_category = material_category;
            return req;
        }
    }

    string ToReadableLabel() {
        std::stringstream stream;