public signed_function Parse_signed_function()
{
signed_function _self = null;
var _backtrack = _index;
List <minus> __minus = new List <minus>();
var _minus = Parse_minus();
while (_minus != null)
{
__minus.Add(_minus); _minus = Parse_minus();;
}
if (__minus.Count > 0)
{
_minus = new minus(__minus);
}
//minus _minus = null;
//_minus = Parse_minus();
var _function = Parse_function();
if (_function == null)
{
_index = _backtrack; return(null);
}
_self = new signed_function(_minus, _function);
return(_self);
}
public factor(signed_function _signed_function, function_parameter _function_parameter)
{
signed_function = _signed_function;
function_parameter = _function_parameter;
expression = signed_function?.expression + function_parameter.expression;
}