| CssSelector | CssSelector is the main entry point of the component and can convert CSS selectors to XPath expressions. |
| Token | Token represents a CSS Selector token. |
| TokenStream | TokenStream represents a stream of CSS Selector tokens. |
| Tokenizer | Tokenizer lexes a CSS Selector to tokens. |
| XPathExpr | XPathExpr represents an XPath expression. |
| XPathExprOr | XPathExprOr represents XPath |'d expressions. |