public CustomFunction(Func <ParameterList, double> aFunc, ParameterList aParams)
{
m_Func = aFunc;
m_Params = aParams;
}
} // ParseLogicResult(string, int)
private INumberProvider ParseNumber(string aExpression, int aMaxRecursion)
{
--aMaxRecursion;
m_ParsingContext.Preprocess(this, ref aExpression);
aExpression = aExpression.Trim();
if (aExpression.Contains(","))
{
string[] parts = aExpression.Split(',');
var paramList = new ParameterList();
paramList.inputs.Capacity = parts.Length;
for (int i = 0; i < parts.Length; i++)
{
string s = parts[i].Trim();
if (!string.IsNullOrEmpty(s))
{
paramList.inputs.Add(ParseNumber(s, aMaxRecursion));
}
}
if (paramList.inputs.Count == 1)
{
return(paramList.inputs[0]);
}
return(paramList);
}
else if (aExpression.Contains("+"))
{
string[] parts = aExpression.Split('+');
List <INumberProvider> exp = new List <INumberProvider>(parts.Length);
for (int i = 0; i < parts.Length; i++)
{
string s = parts[i].Trim();
if (!string.IsNullOrEmpty(s))
{
exp.Add(ParseNumber(s, aMaxRecursion));
}
}
if (exp.Count == 1)
{
return(exp[0]);
}
return(new OperationAdd(exp.ToArray()));
}
else if (aExpression.Contains("-"))
{
string[] parts = aExpression.Split('-');
List <INumberProvider> exp = new List <INumberProvider>(parts.Length);
if (!string.IsNullOrEmpty(parts[0].Trim()))
{
exp.Add(ParseNumber(parts[0], aMaxRecursion));
}
for (int i = 1; i < parts.Length; i++)
{
string s = parts[i].Trim();
if (!string.IsNullOrEmpty(s))
{
exp.Add(new OperationNegate(ParseNumber(s, aMaxRecursion)));
}
}
if (exp.Count == 1)
{
return(exp[0]);
}
return(new OperationAdd(exp.ToArray()));
}
else if (aExpression.Contains("*"))
{
string[] parts = aExpression.Split('*');
List <INumberProvider> exp = new List <INumberProvider>(parts.Length);
for (int i = 0; i < parts.Length; i++)
{
exp.Add(ParseNumber(parts[i], aMaxRecursion));
}
if (exp.Count == 1)
{
return(exp[0]);
}
return(new OperationProduct(exp.ToArray()));
}
else if (aExpression.Contains("/"))
{
string[] parts = aExpression.Split('/');
List <INumberProvider> exp = new List <INumberProvider>(parts.Length);
if (!string.IsNullOrEmpty(parts[0].Trim()))
{
exp.Add(ParseNumber(parts[0], aMaxRecursion));
}
for (int i = 1; i < parts.Length; i++)
{
string s = parts[i].Trim();
if (!string.IsNullOrEmpty(s))
{
exp.Add(new OperationReciprocal(ParseNumber(s, aMaxRecursion)));
}
}
return(new OperationProduct(exp.ToArray()));
}
else if (aExpression.Contains("^"))
{
int pos = aExpression.IndexOf('^');
var val = ParseNumber(aExpression.Substring(0, pos), aMaxRecursion);
var pow = ParseNumber(aExpression.Substring(pos + 1), aMaxRecursion);
return(new OperationPower(val, pow));
}
int p = aExpression.IndexOf("$B");
if (p > 0)
{
string fName = aExpression.Substring(0, p).Trim();
Func <ParameterList, double> func = m_ParsingContext.GetFunction(fName);
if (func != null)
{
aExpression = aExpression.Substring(p);
string inner = m_ParsingContext.GetBracket(ref aExpression);
var param = ParseNumber(inner, aMaxRecursion);
if (param is ParameterList)
{
return(new CustomFunction(func, (ParameterList)param));
}
return(new CustomFunction(func, new ParameterList(param)));
}
}
string bracketContent = m_ParsingContext.GetBracket(ref aExpression);
if (!string.IsNullOrEmpty(bracketContent))
{
return(ParseNumber(bracketContent, aMaxRecursion));
}
ValueProvider value = m_ParsingContext.GetCommand(ref aExpression);
if (value != null)
{
return(value);
}
double doubleValue;
if (double.TryParse(aExpression.Trim(), out doubleValue))
{
return(new ConstantNumber {
constantValue = doubleValue
});
}
if (ValidIdentifier(aExpression))
{
return(context.GetVariable(aExpression.Trim()));
}
if (aMaxRecursion > 0)
{
return new BoolToNumber {
val = ParseLogicResult(aExpression, aMaxRecursion)
}
}
;
throw new ParseException("Unexpected end / expression");
} //ParseNumber(string, int)
