public static SelectorType GetSelectorType(string selector)
{
SelectorType sel = SelectorType.Unspecified;
try
{
XPathExpression.Compile(selector);
sel = SelectorType.Xpath;
}
catch (XPathException) { }
try
{
var parser = new StylesheetParser();
var stylesheet = parser.ParseSelector(selector);
if (stylesheet == null)
{
throw new ArgumentException();
}
sel = SelectorType.Css;
}
catch (ArgumentException) { }
return(sel);
}