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“Reï  ã               @   sf   d  d l  m Z m Z m Z d  d l m Z d  d l m Z d d l m	 Z
 Gd d „  d e
 ƒ Z	 d S)	é    )Úabsolute_importÚdivisionÚunicode_literals)Ú	text_type)Úbisect_lefté   )ÚTriec               @   sg   e  Z d  Z d d „  Z d d „  Z d d „  Z d d „  Z d	 d
 „  Z d d d „ Z d d „  Z	 d S)r   c             C   sn   t  d d „  | j ƒ  Dƒ ƒ s. t d ƒ ‚ n  | |  _ t | j ƒ  ƒ |  _ d |  _ d t | ƒ f |  _ d  S)Nc             s   s   |  ] } t  | t ƒ Vq d  S)N)Ú
isinstancer   )Ú.0Úx© r   ú7/tmp/pip-ztkk0jow-build/pip/_vendor/html5lib/trie/py.pyú	<genexpr>   s    z Trie.__init__.<locals>.<genexpr>zAll keys must be stringsÚ r   )	ÚallÚkeysÚ	TypeErrorÚ_dataÚsortedÚ_keysÚ	_cachestrÚlenÚ_cachepoints)ÚselfÚdatar   r   r   Ú__init__
   s    		zTrie.__init__c             C   s   | |  j  k S)N)r   )r   Úkeyr   r   r   Ú__contains__   s    zTrie.__contains__c             C   s   t  |  j ƒ S)N)r   r   )r   r   r   r   Ú__len__   s    zTrie.__len__c             C   s   t  |  j ƒ S)N)Úiterr   )r   r   r   r   Ú__iter__   s    zTrie.__iter__c             C   s   |  j  | S)N)r   )r   r   r   r   r   Ú__getitem__   s    zTrie.__getitem__Nc             C   sþ   | d  k s" | d k s" |  j  r/ t |  j  ƒ S| j |  j ƒ ro |  j \ } } t |  j  | | | ƒ } } n t |  j  | ƒ } } t ƒ  } | t |  j  ƒ k r§ | Sx8 |  j  | j | ƒ rá | j |  j  | ƒ | d 7} qª W| |  _ | | f |  _ | S)Nr   r   )r   ÚsetÚ
startswithr   r   r   r   Úadd)r   ÚprefixÚloÚhiÚstartÚir   r   r   r   r      s    "		z	Trie.keysc             C   sŽ   | |  j  k r d S| j |  j ƒ rO |  j \ } } t |  j | | | ƒ } n t |  j | ƒ } | t |  j ƒ k rz d S|  j | j | ƒ S)NTF)r   r#   r   r   r   r   r   )r   r%   r&   r'   r)   r   r   r   Úhas_keys_with_prefix6   s    zTrie.has_keys_with_prefix)
Ú__name__Ú
__module__Ú__qualname__r   r   r   r    r!   r   r*   r   r   r   r   r   	   s   	r   N)Ú
__future__r   r   r   Zpip._vendor.sixr   Úbisectr   Ú_baser   ÚABCTrier   r   r   r   Ú<module>   s   