/*
private void BuildExpression()
{
foreach (Assignment assignment in _assignments)
{
string stringDelim = "\"";
if (assignment.Variable.VariableDataType != VariableDataType.String)
stringDelim = string.Empty;
_expression += assignment.Variable.Mnemonic + " = " + stringDelim + assignment.AssignmentExpression + stringDelim + ";";
}
}
*/
private void Parse(ExpressionContext context, CalculationMemory calculationMemory)
{
_assignments.Clear();
// assignments seprator token
string[] temp = _expression.Split(';');
int idx = 0;
//temp.OrderBy?
foreach (string assignmentExpression in temp)
{
if (assignmentExpression != string.Empty)
{
// assignment token
string[] temp2 = assignmentExpression.Split('=');
if (temp2.Length != 2)
throw new InequationEngineException(ExceptionType.NumberOfAssigmentTokens);
string variableName = temp2[0].ToLower().Trim();
Variable variable = calculationMemory[variableName];
if (variable == null)
throw new InequationEngineException(ExceptionType.VariableNotFoundInCalcMemory);
Assignment assignment = new Assignment(variable, temp2[1]);
_assignments.Add(idx, assignment);
idx++;
}
}
}
public InequationEngine()
{
_context = new ExpressionContext();
_context.Imports.AddType(typeof(CustomFunctions));
_context.Options.EmitToAssembly = false;
_calculationMemory = new CalculationMemory(_context);
}
public void Execute(ExpressionContext context, CalculationMemory calculationMemory)
{
// Execute inequation and call action block
if (Inequation.Execute(context))
TrueActionBlock.Execute(context, calculationMemory);
else
FalseActionBlock.Execute(context, calculationMemory);
}
public void Execute(ExpressionContext context, CalculationMemory calculationMemory)
{
if (eDynamic == null)
this.Compile(context);
_variable.Value = eDynamic.Evaluate();
calculationMemory[_variable.Mnemonic] = _variable;
}
public void Compile(ExpressionContext context, CalculationMemory calculationMemory)
{
// Compile inequation expression
Inequation.Compile(context);
// Compile Action Blocks
TrueActionBlock.Compile(context, calculationMemory);
FalseActionBlock.Compile(context, calculationMemory);
}
public void Compile(ExpressionContext context, CalculationMemory calculationMemory)
{
this.Parse(context, calculationMemory);
//_assignments.OrderBy()
foreach(Assignment assignment in _assignments.Values)
{
assignment.Compile(context);
}
}
public void Execute(ExpressionContext context, CalculationMemory calculationMemory)
{
if (_assignments.Count == 0)
this.Compile(context, calculationMemory);
//_assignments.OrderBy()
foreach (Assignment assignment in _assignments.Values)
{
assignment.Execute(context, calculationMemory);
}
}