public TermNode(string unaryOperator, string numberBasedValue, string stringBasedValue,
string hexColor, FunctionNode functionNode, ReadOnlyCollection <ImportantCommentNode> importantComments, string replacementTokenBasedValue = null)
{
// Validity Checks
// Besides the optional unary_operator, only one value can exist for the remaing arguments the rest need to be null
var isArgumentPopulated = false;
var hasError = false;
// Check for: [ NUMBER S* | PERCENTAGE S* | LENGTH S* | EMS S* | EXS S* | ANGLE S* | TIME S* | FREQ S* ]
if (!string.IsNullOrWhiteSpace(numberBasedValue))
{
isArgumentPopulated = true;
}
// check for: STRING | IDENT | URI
if (!string.IsNullOrWhiteSpace(stringBasedValue))
{
if (isArgumentPopulated)
{
hasError = true;
}
else
{
isArgumentPopulated = true;
}
}
// check for: hexcolor
if (!string.IsNullOrWhiteSpace(hexColor))
{
if (isArgumentPopulated)
{
hasError = true;
}
else
{
isArgumentPopulated = true;
}
}
// functionNode
if (functionNode != null)
{
if (isArgumentPopulated)
{
hasError = true;
}
}
if (hasError)
{
throw new AstException(CssStrings.ExpectedSingleValue);
}
// Member Initialization
this.UnaryOperator = unaryOperator;
this.NumberBasedValue = numberBasedValue;
this.StringBasedValue = stringBasedValue;
this.Hexcolor = hexColor;
this.FunctionNode = functionNode;
this.ImportantComments = importantComments ?? (new List <ImportantCommentNode>()).AsReadOnly();
this.IsBinary = false;
this.ReplacementTokenBasedValue = replacementTokenBasedValue;
}
/// <summary>
/// Determine if two Function nodes are equal
/// </summary>
/// <param name="functionNode"> Another Function node to Compare.</param>
/// <returns> Equal or not. </returns>
public bool Equals(FunctionNode functionNode)
{
return(this.FunctionName == functionNode.FunctionName &&
this.ExprNode.Equals(functionNode.ExprNode));
}
