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� ��em � �L � d dl mZ d dlZd dlmZmZmZmZ G d� dee � Zy)� )�annotationsN)�IO�AnyStr�Generic�Literalc �b � e Zd ZdZd d�Zdd�Zej fdd�Zd d�Z ddd�Z dd�Zdd�Zy )�ContainerIOzm A file object that provides read access to a part of an existing file (for example a TAR file). c �r � || _ d| _ || _ || _ | j j |� y)z� Create file object. :param file: Existing file. :param offset: Start of region, in bytes. :param length: Size of region, in bytes. r N)�fh�pos�offset�length�seek)�self�filer r s �1/usr/lib/python3/dist-packages/PIL/ContainerIO.py�__init__zContainerIO.__init__ s0 � � #�����������������V�� c � � y)NF� �r s r �isattyzContainerIO.isatty- s � �r c �< � |dk( r| j |z | _ n!|dk( r| j |z | _ n|| _ t dt | j | j � � | _ | j j | j | j z � y)a Move file pointer. :param offset: Offset in bytes. :param mode: Starting position. Use 0 for beginning of region, 1 for current offset, and 2 for end of region. You cannot move the pointer outside the defined region. � � r N)r r �max�minr r r )r r �modes r r zContainerIO.seek0 ss � � �1�9��x�x�&�(�D�H� �Q�Y��{�{�V�+�D�H��D�H��q�#�d�h�h����4�5��������T�[�[�4�8�8�+�,r c � � | j S )ze Get current file pointer. :returns: Offset from start of region, in bytes. )r r s r �tellzContainerIO.tellC s � � �x�x�r c � � |r$t || j | j z � }n| j | j z }|sd| j j v rdS dS | j |z | _ | j j |� S )z� Read data. :param n: Number of bytes to read. If omitted or zero, read until end of region. :returns: An 8-bit string. �br � )r r r r r �read)r �ns r r$ zContainerIO.readK sp � � ��A�t�{�{�T�X�X�-�.�A����d�h�h�&�A��������-�3�5�2�5��8�8�a�<����w�w�|�|�A��r c � � d| j j v rdnd}d| j j v rdnd} | j d� }|s |S ||z }||k( r |S �$)zJ Read a line of text. :returns: An 8-bit string. r"