← Back
Editing: literals.cpython-37.pyc
B � fc � @ sP d Z ddlZddddddd d d d d � Zdd� Zdd� Zdd� ZedkrLe� dS )z<Safely evaluate Python string literals without using eval().� N��� � � � � �'�"�\) �a�b�f�n�r�t�vr r r c C s� | � dd�\}}|�d�s t�t�|�}|d k r4|S |�d�r�|dd � }t|�dk rbtd| ��yt|d�}W q� tk r� td| �d �Y q�X n2yt|d�}W n" tk r� td | �d �Y nX t|�S ) Nr � r �x� z!invalid hex string escape ('\%s')� � z#invalid octal string escape ('\%s')) �group� startswith�AssertionError�simple_escapes�get�len� ValueError�int�chr)�m�all�tailZescZhexes�i� r% �;/opt/alt/python37/lib64/python3.7/lib2to3/pgen2/literals.py�escape s$ r' c C s� | � d�s(| � d�s(tt| d d� ���| d }| d d� |d krL|d }| �|�sptt| t|� d � ���t| �dt|� ks�t�| t|�t|� � } t�dt| �S )Nr r r r � r z)\\(\'|\"|\\|[abfnrtv]|x.{0,2}|[0-7]{1,3}))r r �repr�endswithr �re�subr' )�s�qr% r% r& � evalString( s ($r/ c C sD x>t d�D ]2} t| �}t|�}t|�}||kr t| |||� q W d S )N� )�ranger r) r/ �print)r$ �cr- �er% r% r& �test2 s r5 �__main__)�__doc__r+ r r' r/ r5 �__name__r% r% r% r& �<module> s
Save File
Cancel