public override string Execute(ExecutionContext context)
{
var output = new StringBuilder();
double counter = context.GetDoubleFrom(Start.Evaluate(context));
while(true) {
context.SetVariable(Variable, counter);
output.Append(ExecuteChildren(context));
counter = context.GetDoubleFrom(context.GetVariable(Variable));
counter += Step == null ? 1.0 : context.GetDoubleFrom(Step.Evaluate(context));
if(counter >= context.GetDoubleFrom(End.Evaluate(context))) {
break;
}
}
return output.ToString();
}
