U
    
Ha                     @   s@   d Z ddlZddlmZm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)).
    N)ListTuplec                 C   s   t | }g }d}tt|D ]b}|d t|k rJ|| ||d  d krJq||d |d  }|t|d |d d  |}qt|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   )sortedrangelenappend_encode_rangetuple)list_sorted_listranges
last_writeicurrent_range r   >/tmp/pip-unpacked-wheel-tx790h60/pip/_vendor/idna/intranges.pyintranges_from_list   s    	r   c                 C   s   | d> |B S )N    r   )startendr   r   r   r
   !   s    r
   c                 C   s   | d? | d@ fS )Nr   l    r   )rr   r   r   _decode_range%   s    r   c                 C   sz   t | d}t||}|dkrNt||d  \}}||   krF|k rNn ndS |t|k rvt|| \}}|| krvdS d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   typingr   r   r   r
   r   r"   r   r   r   r   <module>   s   