List <Expression> GetSummandExpressionsAll(string aExpression)
{
string _pattern = @"(?<VarName>[a-z])(\^(?<VarPow>\d+))?";
string _patternVar = String.Format(@"(?<Coeff>([-]?\d+(,\d+)?))?(?<Var>({0})*)", _pattern);
Regex _regexVar = new Regex(_patternVar);
MatchCollection _mcVar = _regexVar.Matches(aExpression);
List <Expression> _res = new List <Expression>();
for (int i = 0; i < _mcVar.Count; i++)
{
Match _m = _mcVar[i];
string _summ = _m.Value;
if (_summ != String.Empty)
{
GroupCollection _groups = _mcVar[i].Groups;
string _coeff = _groups["Coeff"].Value != String.Empty ? _groups["Coeff"].Value : "1";
Summand _summand = new Summand(Double.Parse(_coeff.Replace(" ", "")));
string _varsCapture = _groups["Var"].Value;
List <Variable> _vars = GetVariable(_varsCapture, _pattern);
_summand.AddVariableRange(_vars);
_summand.ToCanonical();
SummandExpression _exp = new SummandExpression(_m.Index, _m.Index + _m.Length - 1, _summand);
_res.Add(_exp);
}
}
return(_res);
}
