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
abc           @` s   d  Z  d d l m Z m Z m Z d d l m Z d d l m Z d d d d	 d
 d g Z	 i  Z
 d d  Z d   Z d   Z d S(   u  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.
i    (   t   absolute_importt   divisiont   unicode_literalsi   (   t	   constants(   t   default_etreeu   getTreeWalkeru   pprintu   domu   etreeu   genshiu
   etree_lxmlc         K` s   |  j    }  |  t k r |  d k rD d d l m } | j t |  <q |  d k rp d d l m } | j t |  <q |  d k r d d l m } | j t |  <q |  d k r d d	 l m } | d
 k r t	 } n  | j
 | |  j Sn  t j |   S(   u  Get a TreeWalker class for various types of tree with built-in support

    Args:
        treeType (str): 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

        Implementation: A module implementing the tree type e.g.
            xml.etree.ElementTree or cElementTree (Currently applies to the
            "etree" tree type only).
    u   domi   (   t   domu   genshi(   t   genshiu   lxml(   t
   etree_lxmlu   etree(   t   etreeN(   t   lowert   treeWalkerCachet    R   t
   TreeWalkerR   R   R   t   NoneR   t   getETreeModulet   get(   t   treeTypet   implementationt   kwargsR   R   R   R   (    (    sM   /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/treewalkers/__init__.pyt   getTreeWalker   s"    	c         c` s   g  } xh |  D]` } | d } | d k r= | j  | d  q | rh i d d 6d j |  d 6Vg  } n  | Vq W| r i d d 6d j |  d 6Vn  d  S(   Nu   typeu
   Charactersu   SpaceCharactersu   datau    (   u
   Charactersu   SpaceCharacters(   t   appendt   join(   t   tokenst   pendingCharacterst   tokent   type(    (    sM   /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/treewalkers/__init__.pyt   concatenateCharacterTokens<   s    
		c         C` s  g  } d } xt  |   D]} | d } | d k r~| d r | d t j d k r | d t j k r} t j | d } n
 | d } d | | d f } n
 | d } | j d	 d
 | | f  | d 7} | d } x t | j    D]t \ \ } }	 }
 | r:| t j k r!t j | } n | } d | |	 f } n |	 } | j d d
 | | |
 f  q W| d k r| d 8} qq | d k r| d 8} q | d k r| j d d
 | | d f  q | d k r| d rz| d r%| j d d
 | | d | d | d r| d n d f  q| d rX| j d d
 | | d | d f  q| j d d
 | | d f  q| j d d
 | f  q | d k r| j d d
 | | d f  q | d k rt st d   q t	 d |   q Wd j
 |  S(    u   Pretty printer for tree walkersi    u   typeu   StartTagu   EmptyTagu	   namespaceu   htmlu   %s %su   nameu   %s<%s>u    i   u   datau	   %s%s="%s"u   EndTagu   Commentu   %s<!-- %s -->u   Doctypeu   publicIdu   %s<!DOCTYPE %s "%s" "%s">u   systemIdu    u   %s<!DOCTYPE %s "" "%s">u   %s<!DOCTYPE %s>u   %s<!DOCTYPE >u
   Charactersu   %s"%s"u   SpaceCharactersuB   concatenateCharacterTokens should have got rid of all Space tokensu   Unknown token type, %su   
(   u   StartTagu   EmptyTag(   R   R   t
   namespacest   prefixesR   t   sortedt   itemst   Falset   AssertionErrort
   ValueErrorR   (   t   walkert   outputt   indentR   R   t   nst   namet   attrst	   namespacet	   localnamet   value(    (    sM   /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/treewalkers/__init__.pyt   pprintK   sd    
!



%""

	"
	"N(   t   __doc__t
   __future__R    R   R   R   R   t   _utilsR   t   __all__R
   R   R   R   R+   (    (    (    sM   /usr/lib/python2.7/site-packages/pip/_vendor/html5lib/treewalkers/__init__.pyt   <module>	   s   '	