private string TransformBigNumbers(string str)
{
var pieces = str.Split(' ').ToList();
for (var i = 0; i < pieces.Count; ++i)
{
if (_bigNumberDict.ContainsKey(pieces[i]))
{
var t = _bigNumberDict[pieces[i]];
double value;
if (i != 0 && DoubleParser.TryParse(pieces[i - 1], out value))
{
t *= value;
pieces[i] = t.ToString();
pieces.RemoveAt(i - 1);
}
else
{
pieces[i] = t.ToString();
}
}
}
for (int i = 1; i < pieces.Count; ++i)
{
double value, value2;
if (DoubleParser.TryParse(pieces[i - 1], out value) && DoubleParser.TryParse(pieces[i], out value2))
{
value2 += value;
pieces[i] = value2.ToString();
pieces[i - 1] = "";
}
}
var sb = new StringBuilder();
foreach (var p in pieces)
{
if (p == "")
{
continue;
}
sb.Append(p + " ");
}
return(sb.ToString().Trim(' '));
}
public static List <string> Steps(string expression)
{
Success = true;
AllValues = new List <string>();
var output = new List <string>();
var parts = expression.Split(' ');
double res;
if (DoubleParser.TryParse(parts[0], out res))
{
for (var i = 1; i < parts.Length - 1; i += 2)
{
var step = res.ToString(Culture.EngInfo) + " " + parts[i] + " " + parts[i + 1] + " = ";
double nextOperand;
if (DoubleParser.TryParse(parts[i + 1], out nextOperand))
{
if (parts[i] == "+")
{
res += nextOperand;
}
else if (parts[i] == "-")
{
res -= nextOperand;
}
else if (parts[i] == "*")
{
res *= nextOperand;
}
else
{
if (nextOperand == 0)
{
Error(output, expression);
break;
}
res /= nextOperand;
res = Math.Round(res, 3);
}
step += res.ToString(Culture.EngInfo);
AllValues.Add(res.ToString(Culture.EngInfo));
output.Add(step);
}
else
{
Error(output, expression);
break;
}
}
}
else
{
Error(output, expression);
}
if (output.Count == 0)
{
AllValues.Add(res.ToString(Culture.EngInfo));
output.Add(res.ToString(Culture.EngInfo));
}
return(output);
}