Method trailing_len

crates/css_lexer/src/token.rs:1021–1029

Some tokens may have a "trailing" part: - [Kind::Function] will always have an opening `(`. - [Kind::String] may have a closing `"` or `'`. - [Kind::Comment] may have a closing `*/` - [Kind::Url] may have a clsoing `)`. This function returns the length of that, irrespective of the [Kind]. For other kinds not listed, this will return `0`, but for the above kinds it will calculate the leading lengt

(&self)

	/// `0`, but for the above kinds it will calculate the leading length. This is useful for parsing out the underlying
	/// data which is likely to be of greater use.
	pub fn trailing_len(&self) -> u32 {
		match self.kind() {
			Kind::Function | Kind::BadFunction => 1,
			Kind::String | Kind::BadString => self.has_close_quote() as u32,
			Kind::Comment | Kind::BadComment if self.comment_style().unwrap().is_block() => 2,
			Kind::Url | Kind::BadUrl => self.0 & !HALF_LENGTH_MASK,
			_ => 0,
		}
	}

	/// Certain kinds have a [PairWise] equivalent:
	///  - [Kind::LeftParen] has [Kind::RightParen]