private function parseEscapeSequence()
    {
        $sequence = "'" === $this->next || '"' === $this->next
            ? $this->next
            : '\\'.$this->next;

        $this->next();
        $this->next();

        return $sequence;
    }
private function parseEscapeSequence()
    {
        $sequence = "'" === $this->next || '"' === $this->next
            ? $this->next
            : '\\'.$this->next;

        $this->next();
        $this->next();

        return $sequence;
    }
private function parseEscapeSequence ( ) { $ sequence = "'" === $ this -> next || '"' === $ this -> next ? $ this -> next : '\\' . $ this -> next ; $ this -> next ( ) ; $ this -> next ( ) ; return $ sequence ; }
Parses an escape sequence started by a backslash.

@return string The parsed sequence.
Parses an escape sequence started by a backslash .