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B 63)ZR � @ sZ d Z ddlmZmZmZ ddlmZ ddlmZ ddgZ i Z d d d�Z d d � Z d d� Z dS )a� A collection of modules for iterating through different kinds of tree, generating tokens identical to those produced by the tokenizer module. To create a tree walker for a new type of tree, you need to do implement a tree walker object (called TreeWalker by convention) that implements a 'serialize' method taking a tree as sole argument and returning an iterator generating tokens. � )�absolute_import�division�unicode_literals� )� constants)� default_etree� getTreeWalker�pprintNc K s� | � � } | tkr�| dkr0ddlm} |jt| < np| dkrPddlm} |jt| < nP| dkrpddlm} |jt| < n0| dkr�dd lm} |d kr�t}|j |f|�jS t� | �S ) a; Get a TreeWalker class for various types of tree with built-in support :arg str treeType: the name of the tree type required (case-insensitive). Supported values are: * "dom": The xml.dom.minidom DOM implementation * "etree": A generic walker for tree implementations exposing an elementtree-like interface (known to work with ElementTree, cElementTree and lxml.etree). * "lxml": Optimized walker for lxml.etree * "genshi": a Genshi stream :arg implementation: A module implementing the tree type e.g. xml.etree.ElementTree or cElementTree (Currently applies to the "etree" tree type only). :arg kwargs: keyword arguments passed to the etree walker--for other walkers, this has no effect :returns: a TreeWalker class �dom� )r �genshi)r �lxml)� etree_lxml�etree)r N) �lower�treeWalkerCache� r Z TreeWalkerr r r r ZgetETreeModule�get)ZtreeType�implementation�kwargsr r r r � r �N/opt/alt/python37/lib/python3.7/site-packages/html5lib/treewalkers/__init__.pyr s" c c sl g }xL| D ]D}|d }|dkr.|� |d � q |rHdd�|�d�V g }|V q W |rhdd�|�d�V d S )N�type)� Characters�SpaceCharacters�datar r )r r )�append�join)�tokensZpendingCharacters�tokenr r r r �concatenateCharacterTokensA s r c C sl g }d}�xVt | �D �]H}|d }|dk�r&|d r~|d tjd kr~|d tjkrdtj|d }n|d }d||d f }n|d }|�dd | |f � |d 7 }|d }xdt|�� �D ]T\\}} } |r�|tjkr�tj| }n|}d|| f }n| }|�d d | || f � q�W |d k�r^|d 8 }q|dk�r:|d 8 }q|dk�r`|�dd | |d f � q|dk�r|d �r�|d �r�|�dd | |d |d |d �r�|d ndf � nF|d �r�|�dd | |d |d f � n|�dd | |d f � n|�dd | f � q|dk�r8|�dd | |d f � q|dk�rRd �s^td ��qtd | ��qW d � |�S ) z�Pretty printer for tree walkers Takes a TreeWalker instance and pretty prints the output of walking the tree. :arg walker: a TreeWalker instance r r )ZStartTag�EmptyTag� namespace�htmlz%s %s�namez%s<%s>� r r z %s%s="%s"r! ZEndTag�Commentz %s<!-- %s -->ZDoctypeZpublicIdz%s<!DOCTYPE %s "%s" "%s">ZsystemIdr z%s<!DOCTYPE %s "" "%s">z%s<!DOCTYPE %s>z %s<!DOCTYPE >r z%s"%s"r FzBconcatenateCharacterTokens should have got rid of all Space tokenszUnknown token type, %s� ) r r Z namespaces�prefixesr �sorted�items�AssertionError� ValueErrorr ) Zwalker�output�indentr r �nsr$ �attrsr" Z localname�valuer r r r P sd )N)�__doc__� __future__r r r r r Z_utilsr �__all__r r r r r r r r �<module> s ,
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