U
    <ßôgõ  ã                   @   sZ   d dl mZmZmZ zd dlmZ W n  ek
rD   d dlmZ Y nX G dd„ deƒZdS )é    )Úabsolute_importÚdivisionÚunicode_literals)ÚMappingc                       s:   e Zd ZdZd‡ fdd„	Zdd„ Zdd„ Zd	d
„ Z‡  ZS )ÚTriezAbstract base class for triesNc                    s0   t t| ƒ ¡ }ˆ d krt|ƒS ‡ fdd„|D ƒS )Nc                    s   h | ]}|  ˆ ¡r|’qS © )Ú
startswith)Ú.0Úx©Úprefixr   ú8/tmp/pip-unpacked-wheel-jqcau075/html5lib/_trie/_base.pyÚ	<setcomp>   s     
 zTrie.keys.<locals>.<setcomp>)Úsuperr   ÚkeysÚset)Úselfr   r   ©Ú	__class__r   r   r      s    z	Trie.keysc                 C   s"   |   ¡ D ]}| |¡r dS qdS )NTF)r   r   )r   r   Úkeyr   r   r   Úhas_keys_with_prefix   s    
zTrie.has_keys_with_prefixc                 C   sT   || kr|S t dt|ƒd ƒD ](}|d | … | kr|d | …   S qt|ƒ‚d S )Né   )ÚrangeÚlenÚKeyError)r   r   Úir   r   r   Úlongest_prefix   s    zTrie.longest_prefixc                 C   s   |   |¡}|| | fS )N)r   )r   r   Úlprefixr   r   r   Úlongest_prefix_item&   s    
zTrie.longest_prefix_item)N)	Ú__name__Ú
__module__Ú__qualname__Ú__doc__r   r   r   r   Ú__classcell__r   r   r   r   r   	   s
   	
r   N)	Ú
__future__r   r   r   Úcollections.abcr   ÚImportErrorÚcollectionsr   r   r   r   r   Ú<module>   s
   