public void GivenPowerOf4_IsPowerOf_ShouldReturnTrue()
{
var result = new PowerOf(4).Build().IsNumberPowerOf(16);
Assert.IsTrue(result);
}
public void GivenPowerOf3_IsPowerOfThree_ShouldReturnTrue()
{
var result = new PowerOf(3).Build().IsNumberPowerOf(27);
Assert.IsTrue(result);
}
public void GivenNotPowerOf3_IsPowerOfThree_ShouldReturnFalse()
{
var result = new PowerOf(3).Build().IsNumberPowerOf(15);
Assert.IsFalse(result);
}
public SuperHappyScript(string script)
{
ValueNode currentNode = null;
string currentParseValue = "";
int predenceLevel = 0;
_variables = new List <string>();
int index = 0;
char currentToken = ' ';
char nextToken = ' ';
_script = script;
try {
foreach (char token in script)
{
index++;
if (script.Length > index)
{
nextToken = script[index];
}
currentToken = token;
if (currentParseValue.StartsWith("[") && !currentParseValue.EndsWith("]") && !(currentParseValue + token).EndsWith(">=") && !(currentParseValue + token).EndsWith("<=") && !(currentParseValue + token).EndsWith("<>"))
{
currentParseValue += token;
continue;
}
if (IgnoreSet.Contains(token))
{
if (currentParseValue != "")
{
currentNode = AddValue(currentNode, currentParseValue);
}
}
else if (token == ']')
{
currentParseValue += token;
currentNode = AddValue(currentNode, currentParseValue);
}
else if (token == ',')
{
if (predenceLevel == 0)
{
throw new Exception("Parsing error");
}
if (currentParseValue != "")
{
currentNode = AddValue(currentNode, currentParseValue);
}
currentNode = WrapFunction(currentNode, predenceLevel, false);
}
else if ((currentParseValue + token).ToUpper() == "ABS(")
{
currentNode = new Absolute(predenceLevel).AttachNode(currentNode);
predenceLevel += MAX_PREDENCE + 1;
}
else if ((currentParseValue + token).ToUpper() == "ROUND(")
{
currentNode = new Round(predenceLevel).AttachNode(currentNode);
predenceLevel += MAX_PREDENCE + 1;
}
else if ((currentParseValue + token).ToUpper() == "INT(")
{
currentNode = new RoundDown(predenceLevel).AttachNode(currentNode);
predenceLevel += MAX_PREDENCE + 1;
}
else if ((currentParseValue + token).ToUpper() == "IIF(")
{
currentNode = new IfStatement(predenceLevel).AttachNode(currentNode);
predenceLevel += MAX_PREDENCE + 1;
}
else if ((currentParseValue + token).ToUpper() == "MAX(")
{
currentNode = new Max(predenceLevel).AttachNode(currentNode);
predenceLevel += MAX_PREDENCE + 1;
}
else if ((currentParseValue + token).ToUpper() == "ISNAN(")
{
currentNode = new IsNaN(predenceLevel).AttachNode(currentNode);
predenceLevel += MAX_PREDENCE + 1;
}
else if ((currentParseValue + token).ToUpper() == "MIN(")
{
currentNode = new Min(predenceLevel).AttachNode(currentNode);
predenceLevel += MAX_PREDENCE + 1;
}
else if ((currentParseValue + token).ToUpper() == "AND")
{
if (currentParseValue.Length > 2)
{
currentNode = AddValue(currentNode, currentParseValue.Substring(0, currentParseValue.Length - 2));
}
currentNode = new And(predenceLevel).AttachNode(currentNode);
}
else if ((currentParseValue + token).ToUpper() == "OR")
{
if (currentParseValue.Length > 2)
{
currentNode = AddValue(currentNode, currentParseValue.Substring(0, currentParseValue.Length - 2));
}
currentNode = new Or(predenceLevel).AttachNode(currentNode);
}
else if ((currentParseValue + token).ToUpper() == "NOT")
{
if (currentParseValue.Length > 2)
{
currentNode = AddValue(currentNode, currentParseValue.Substring(0, currentParseValue.Length - 2));
}
currentNode = new Not(predenceLevel).AttachNode(currentNode);
}
else if (token == '(')
{
if (currentParseValue != "")
{
throw new Exception("Parsing error");
}
predenceLevel += MAX_PREDENCE + 1;
}
else if (token == ')')
{
if (predenceLevel == 0)
{
throw new Exception("Parsing error");
}
if (currentParseValue != "")
{
currentNode = AddValue(currentNode, currentParseValue);
}
currentNode = WrapFunction(currentNode, predenceLevel, true);
predenceLevel -= MAX_PREDENCE + 1;
}
else if ((currentParseValue + token).EndsWith("="))
{
if (currentParseValue.Length > 1)
{
currentNode = AddValue(currentNode, currentParseValue.Substring(0, currentParseValue.Length));
}
currentNode = new Equal(predenceLevel).AttachNode(currentNode);
}
else if ((currentParseValue + token).EndsWith(">="))
{
if (currentParseValue.Length > 2)
{
currentNode = AddValue(currentNode, currentParseValue.Substring(0, currentParseValue.Length - 1));
}
currentNode = new EqualOrGreaterThan(predenceLevel).AttachNode(currentNode);
}
else if ((currentParseValue + token).EndsWith("<="))
{
if (currentParseValue.Length > 2)
{
currentNode = AddValue(currentNode, currentParseValue.Substring(0, currentParseValue.Length - 1));
}
currentNode = new EqualOrLessThan(predenceLevel).AttachNode(currentNode);
}
else if ((currentParseValue + token).EndsWith("<>"))
{
if (currentParseValue.Length > 2)
{
currentNode = AddValue(currentNode, currentParseValue.Substring(0, currentParseValue.Length - 1));
}
currentNode = new NotEqual(predenceLevel).AttachNode(currentNode);
}
else if (token == '>' && nextToken != '=')
{
if (currentParseValue != "")
{
currentNode = AddValue(currentNode, currentParseValue);
}
currentNode = new GreaterThan(predenceLevel).AttachNode(currentNode);
}
else if (token == '<' && nextToken != '>' && nextToken != '=')
{
if (currentParseValue != "")
{
currentNode = AddValue(currentNode, currentParseValue);
}
currentNode = new LessThan(predenceLevel).AttachNode(currentNode);
}
else if (token == '+')
{
if (currentParseValue != "")
{
currentNode = AddValue(currentNode, currentParseValue);
}
currentNode = new Add(predenceLevel).AttachNode(currentNode);
}
else if (token == '-')
{
if (currentParseValue != "")
{
currentNode = AddValue(currentNode, currentParseValue);
}
if (currentNode == null || currentNode is Operand || currentNode is Function)
{
currentNode = new Negate(predenceLevel).AttachNode(currentNode);
}
else
{
currentNode = new Subtract(predenceLevel).AttachNode(currentNode);
}
}
else if (token == '*')
{
if (currentParseValue != "")
{
currentNode = AddValue(currentNode, currentParseValue);
}
currentNode = new Multiply(predenceLevel).AttachNode(currentNode);
}
else if (token == '/')
{
if (currentParseValue != "")
{
currentNode = AddValue(currentNode, currentParseValue);
}
currentNode = new Divide(predenceLevel).AttachNode(currentNode);
}
else if (token == '^')
{
if (currentParseValue != "")
{
currentNode = AddValue(currentNode, currentParseValue);
}
currentNode = new PowerOf(predenceLevel).AttachNode(currentNode);
}
else
{
if (currentParseValue.StartsWith("[") && currentParseValue.EndsWith("]") && token == '[')
{
throw new Exception("Two variables declared in a row");
}
currentParseValue += token;
continue;
}
currentParseValue = "";
}
} catch (Exception exc) {
throw new Exception(exc.Message + " at token: " + currentToken + " in row: " + index);
}
if (currentParseValue != "")
{
currentNode = AddValue(currentNode, currentParseValue);
}
if (predenceLevel != 0)
{
throw new Exception("Parsing error");
}
while (currentNode.Parent != null)
{
currentNode = currentNode.Parent;
}
_startNode = currentNode;
_variables = new List <string>(_variables.Distinct());
Test();
}
