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
Re                 @   sF   d  Z  d d l Z d d   Z d d   Z d d   Z d	 d
   Z d S)a	  
Given a list of integers, made up of (hopefully) a small number of long runs
of consecutive integers, compute a representation of the form
((start1, end1), (start2, end2) ...). Then answer the question "was x present
in the original list?" in time O(log(# runs)).
    Nc             C   s   t  |   } g  } d } x t t |   D]{ } | d t |  k  rf | | | | d d k rf q+ | | d | d  } | j t | d | d d   | } q+ Wt |  S)a  Represent a list of integers as a sequence of ranges:
    ((start_0, end_0), (start_1, end_1), ...), such that the original
    integers are exactly those x such that start_i <= x < end_i for some i.

    Ranges are encoded as single integers (start << 32 | end), not as tuples.
       r   r   )sortedrangelenappend_encode_rangetuple)list_sorted_listranges
last_writeicurrent_range r   /builddir/build/BUILDROOT/alt-python35-pip-20.2.4-5.el8.x86_64/opt/alt/python35/lib/python3.5/site-packages/pip/_vendor/idna/intranges.pyintranges_from_list
   s    "
r   c             C   s   |  d >| BS)N    r   )startendr   r   r   r      s    r   c             C   s   |  d ?|  d @f S)Nr   r   l        l    r   )rr   r   r   _decode_range"   s    r   c             C   s   t  |  d  } t j | |  } | d k rg t | | d  \ } } | |  k o^ | k  n rg d S| t |  k  r t | |  \ } } | |  k r d Sd S)z=Determine if `int_` falls into one of the ranges in `ranges`.r   r   TF)r   bisectbisect_leftr   r   )int_r   tuple_posleftright_r   r   r   intranges_contain&   s    r    )__doc__r   r   r   r   r    r   r   r   r   <module>   s
   