next := -1           // position immediately following the comment; < 0 means invalid comment
	numCR := 0
	nlOffset := 0 // offset of first newline within /*...*/ comment

	if s.ch == '/' {
		//-style comment
		// (the final '\n' is not considered part of the comment)
		s.next()
		for s.ch != '\n' && s.ch >= 0 {
			if s.ch == '\r' {
				numCR++
			}
			s.next()
		}