Edit File: _elementpath.cpython-37.pyc
B C�;]�) � @ s� d dl mZ d dlZe�d�Zd dd�Zdd� Zdd � Zd d � Zd d � Z dd� Z dd� Z eeee e e d�Z i Z dd� Zd dd�Zd dd�Zd dd�Zd!dd �ZdS )"� )�absolute_importNzY('[^']*'|"[^"]*"|::|//?|\.\.|\(\)|[/.*:\[\]\(\)@=])|((?:\{[^}]+\})?[^/\[\]\(\)@=\s]+)|\s+c c s� |r|� d �p|� d�nd }d}x�t�| �D ]�}|\}}|r�|d dkr�d|kr�|�dd�\}}y"|sjt�|d|| |f fV W q� tk r� td| ��Y q�X n"|r�|s�|d||f fV n|V d}q,|V |d k}q,W d S ) N� Fr �{�:� z{%s}%sz!prefix %r not found in prefix map�@)�get�xpath_tokenizer_re�findall�split�KeyError� SyntaxError) �pattern� namespacesZdefault_namespaceZparsing_attribute�tokenZttype�tag�prefixZuri� r �D/opt/alt/python37/lib64/python3.7/site-packages/lxml/_elementpath.py�xpath_tokenizerJ s& r c s |d � � fdd�}|S )Nr c 3 s, x&| D ] }x|� � �D ] }|V qW qW d S )N)� iterchildren)�result�elem�e)r r r �selecte s z prepare_child.<locals>.selectr )�nextr r r )r r � prepare_childc s r c C s dd� }|S )Nc s s, x&| D ] }x|� d�D ] }|V qW qW d S )N�*)r )r r r r r r r l s z prepare_star.<locals>.selectr )r r r r r r � prepare_stark s r c C s dd� }|S )Nc S s | S )Nr )r r r r r s s z prepare_self.<locals>.selectr )r r r r r r � prepare_selfr s r c sB | � }|d dkrd� n|d s*|d � nt d��� fdd�}|S )Nr r r zinvalid descendantc 3 s, x&| D ] }x|� � �D ] }|V qW qW d S )N)Ziterdescendants)r r r )r r r r s z"prepare_descendant.<locals>.select)r )r r r r )r r �prepare_descendantw s r c C s dd� }|S )Nc s s( x"| D ]}|� � }|d k r|V qW d S )N)� getparent)r r �parentr r r r � s z prepare_parent.<locals>.selectr )r r r r r r �prepare_parent� s r# c s& d}g }xp| � }|d dkr P |dkr(q |d rX|d d d� dkrXd|d dd� f}||d pdd 7 }|� |d � q W |d kr�|d ��fd d �}|S |d kr�|d �|d ���fdd �}|S |d kr�t�d|d �s�|d ��fdd �}|S |dk�s|dk�rPt�d|d ��sP|d �|d ���r@��fdd �}n �fdd �}|S |d k�sn|dk�sn|dk�r|d k�r�t|d �d � � dk �r � dk�r�td��ntd��nZ|d dk�r�td��|dk�ryt|d �d � W n tk �r td ��Y nX nd� � fd d �}|S td ��d S ) Nr r �])r r r z'"�'����-z@-c 3 s& x | D ]}|� � �d k r|V qW d S )N)r )r r )�keyr r r � s z!prepare_predicate.<locals>.selectz@-='c 3 s& x | D ]}|� � ��kr|V qW d S )N)r )r r )r( �valuer r r � s z-?\d+$c 3 s. x(| D ] }x|� � �D ] }|V P qW qW d S )N)r )r r �_)r r r r � s z.='z-='c 3 s@ x:| D ]2}x,|� � �D ] }d�|�� ��kr|V P qW qW d S )Nr )r �join�itertext)r r r )r r) r r r � s c 3 s* x$| D ] }d� |�� �� kr|V qW d S )Nr )r+ r, )r r )r) r r r � s z-()z-()-z3indices in path predicates are 1-based, not 0-basedzpath index >= 1 expected�lastzunsupported function� zunsupported expressionc 3 s` xZ| D ]R}|� � }|d kr qy&t|�|j��}|� |kr@|V W q tk rV Y qX qW d S )N)r! �listr r � IndexError)r r r" Zelems)�indexr r r � s zinvalid predicate)�append�re�match�intr � ValueError)r r � signature� predicater r )r1 r( r r) r �prepare_predicate� sf & r9 )r r �.z..z//�[c C s� | dd� dkr| d7 } | f}|r�d|kr�d|krZ|d |d krZt d|d |d f ��||d fttdd� |�� D ��� 7 }n|tt|�� ��7 }yt| S tk r� Y nX tt�d kr�t�� | dd � dkr�td ��t t | |��}y |j }W n t k �r |j }Y nX y |� }W n tk �r@ td ��Y nX g }xzy |�t|d ||�� W n tk �r� td��Y nX y |� }|d dk�r�|� }W n tk �r� P Y nX �qHW |t|< |S )zcompile selector patternr& N�/r r z2Ambiguous default namespace provided: %r versus %rc s s | ]}|d dk r|V qdS )r Nr )�.0�itemr r r � <genexpr> s z'_build_path_iterator.<locals>.<genexpr>�d r z#cannot use absolute path on elementzempty path expressionr z invalid path)r6 �tuple�sorted�items�_cacher �len�clearr �iterr r �AttributeError�__next__� StopIterationr2 �ops)�pathr Z cache_key�streamZ_nextr �selectorr r r �_build_path_iterator� sT rO c C s. t ||�}t| f�}x|D ] }||�}qW |S )N)rO rG )r rL r rN r r r r r �iterfind7 s rP c C s. t | ||�}yt|�S tk r( d S X d S )N)rP r rJ )r rL r �itr r r �findB s rR c C s t t| ||��S )N)r/ rP )r rL r r r r r M s r c C s& t | ||�}|d kr|S |jp dS d S )Nr )rR �text)r rL �defaultr �elr r r �findtextT s rV )N)N)N)N)NN)� __future__r r3 �compiler r r r r r r# r9 rK rD rO rP rR r rV r r r r �<module>: s, c9