private BaseNode CreateNode(string value)
{
if (!KirinArithmetic.IsArithmetic(value, out var result))
{
return new ValueNode()
{
RawValue = value
}
}
;
return(CreateNode(result));
}
/// <summary>
/// Evaluates raw FiM++ string into a value
/// </summary>
public static object Evaluate(
FiMClass reportClass,
string evaluatable,
out KirinVariableType returnedType,
KirinVariableType?expectedType = null
)
{
returnedType = KirinVariableType.UNKNOWN;
// Nothing
if (evaluatable == "nothing" && expectedType != null)
{
returnedType = (KirinVariableType)expectedType;
return(FiMHelper.GetDefaultValue(returnedType));
}
// Calling an existing variable
if (reportClass.GetVariable(evaluatable) != null)
{
var variable = reportClass.GetVariable(evaluatable);
returnedType = variable.Type;
return(variable.Value);
}
// Calling an existing method
if (reportClass.GetParagraphLazy(evaluatable) != null)
{
KirinValue[] args = null;
string pName = evaluatable;
if (pName.Contains(KirinFunctionCall.FunctionParam))
{
int pIndex = pName.IndexOf(KirinFunctionCall.FunctionParam);
pName = pName.Substring(0, pIndex);
args = KirinFunctionCall.ParseCallArguments(
evaluatable.Substring(pName.Length + KirinFunctionCall.FunctionParam.Length), reportClass
).ToArray();
}
var paragraph = reportClass.GetParagraph(pName);
if (paragraph == null)
{
throw new FiMException("Paragraph " + pName + " not found");
}
if (paragraph.ReturnType == KirinVariableType.UNKNOWN)
{
throw new FiMException("Paragraph returns nothing");
}
returnedType = paragraph.ReturnType;
return(paragraph.Execute(args));
}
// Array
if (expectedType != null && FiMHelper.IsTypeArray((KirinVariableType)expectedType))
{
System.Collections.IDictionary dict = null;
var args = KirinFunctionCall.ParseCallArguments(evaluatable, reportClass);
if (!FiMHelper.IsTypeOfArray(args[0].Type, (KirinArrayType)expectedType))
{
throw new FiMException("Invalid list value type");
}
if (!args.All(a => a.Type == args[0].Type))
{
throw new FiMException("Unidentical list value type");
}
int i = 1;
if (expectedType == KirinVariableType.STRING_ARRAY)
{
dict = new Dictionary <int, string>();
args.ForEach(kv => dict.Add(i++, Convert.ToString(kv.Value)));
}
else if (expectedType == KirinVariableType.NUMBER_ARRAY)
{
dict = new Dictionary <int, double>();
args.ForEach(kv => dict.Add(i++, Convert.ToDouble(kv.Value)));
}
else if (expectedType == KirinVariableType.BOOL_ARRAY)
{
dict = new Dictionary <int, bool>();
args.ForEach(kv => dict.Add(i++, Convert.ToBoolean(kv.Value)));
}
returnedType = (KirinVariableType)expectedType;
return(dict);
}
// Array index
if (FiMHelper.ArrayIndex.IsArrayIndex(evaluatable, reportClass))
{
var match = FiMHelper.ArrayIndex.GetArrayIndex(evaluatable, reportClass);
var varIndex = new KirinValue(match.RawIndex, reportClass);
if (varIndex.Type != KirinVariableType.NUMBER)
{
throw new FiMException("Invalid index value");
}
int index = Convert.ToInt32(varIndex.Value);
string strVar = match.RawVariable;
if (!reportClass.Variables.Has(strVar))
{
throw new FiMException("Variable " + strVar + " does not exist");
}
var variable = reportClass.Variables.Get(strVar);
if (!FiMHelper.IsTypeArray(variable.Type) && variable.Type != KirinVariableType.STRING)
{
throw new FiMException("Cannot index a non-array variable");
}
if (variable.Type == KirinVariableType.STRING)
{
returnedType = KirinVariableType.CHAR;
return(Convert.ToString(variable.Value)[index - 1]);
}
var dict = variable.Value as System.Collections.IDictionary;
if (variable.Type == KirinVariableType.STRING_ARRAY)
{
returnedType = KirinVariableType.STRING;
return(Convert.ToString(dict[index]));
}
if (variable.Type == KirinVariableType.BOOL_ARRAY)
{
returnedType = KirinVariableType.BOOL;
return(Convert.ToBoolean(dict[index]));
}
if (variable.Type == KirinVariableType.NUMBER_ARRAY)
{
returnedType = KirinVariableType.NUMBER;
return(Convert.ToDouble(dict[index]));
}
}
// Arithmetic
if (KirinArithmetic.IsArithmetic(evaluatable, out var arithmeticResult))
{
var arithmetic = new KirinArithmetic(arithmeticResult);
var value = arithmetic.GetValue(reportClass);
returnedType = FiMHelper.AsVariableType(value.GetType());
return(value);
}
// Conditional
if (KirinConditional.IsConditional(evaluatable, out var conditionalResult))
{
var conditional = new KirinConditional(conditionalResult);
returnedType = KirinVariableType.BOOL;
return(conditional.GetValue(reportClass));
}
throw new FiMException("Cannot evaluate " + evaluatable);
}