parsers::where::node_type calculate_free(boost::shared_ptr<filter_obj> object, parsers::where::evaluation_context context, parsers::where::node_type subject) {
std::list<parsers::where::node_type> list = subject->get_list_value(context);
if (list.size() != 2) {
context->error("Invalid list value");
return parsers::where::factory::create_false();
}
std::list<parsers::where::node_type>::const_iterator cit = list.begin();
parsers::where::node_type amount = *cit;
++cit;
parsers::where::node_type unit = *cit;
long long percentage = amount->get_int_value(context);
long long value = (object->get_total()*percentage)/100;
return parsers::where::factory::create_int(value);
}
read_arg_type read_arguments(parsers::where::evaluation_context context, parsers::where::node_type subject, std::string default_unit) {
std::list<parsers::where::node_type> list = subject->get_list_value(context);
if (list.empty())
list.push_back(subject);
long long value_int = 0;
double value_float = 0.0;
std::string unit = default_unit;
std::list<parsers::where::node_type>::const_iterator cit;
if (list.size() > 0) {
cit = list.begin();
value_int = (*cit)->get_int_value(context);
value_float = (*cit)->get_float_value(context);
}
if (list.size() > 1) {
++cit;
unit = (*cit)->get_value(context, type_string).get_string(unit);
}
return boost::make_tuple(value_int, value_float, unit);
}
