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편집 파일: __init__.cpython-36.pyc
3 �ReS) � @ s� d Z ddlmZ ddlZddlmZ dZddd d d �Zi Zd d � Z dd� Z dd� Z G dd� de �Z e d�Ze d�Ze d�Zd+dd�Zdd� Zed fd d �Zd,d d �Zd!d"� Zed fd#d$�Zd%d&� ZG d'd(� d(e �ZG d)d*� d*e �ZdS )-a webencodings ~~~~~~~~~~~~ This is a Python implementation of the `WHATWG Encoding standard <http://encoding.spec.whatwg.org/>`. See README for details. :copyright: Copyright 2012 by Simon Sapin :license: BSD, see LICENSE for details. � )�unicode_literalsN� )�LABELSz0.5.1z iso-8859-8z mac-cyrillicz mac-roman�cp874)z iso-8859-8-izx-mac-cyrillic� macintoshz windows-874c C s | j d�j� jd�S )a9 Transform (only) ASCII letters to lower case: A-Z is mapped to a-z. :param string: An Unicode string. :returns: A new Unicode string. This is used for `ASCII case-insensitive <http://encoding.spec.whatwg.org/#ascii-case-insensitive>`_ matching of encoding labels. The same matching is also used, among other things, for `CSS keywords <http://dev.w3.org/csswg/css-values/#keywords>`_. This is different from the :meth:`~py:str.lower` method of Unicode strings which also affect non-ASCII characters, sometimes mapping them into the ASCII range: >>> keyword = u'Bac\N{KELVIN SIGN}ground' >>> assert keyword.lower() == u'background' >>> assert ascii_lower(keyword) != keyword.lower() >>> assert ascii_lower(keyword) == u'bac\N{KELVIN SIGN}ground' �utf8)�encode�lower�decode)�string� r ��/builddir/build/BUILDROOT/alt-python36-pip-20.2.4-5.el8.x86_64/opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/webencodings/__init__.py� ascii_lower# s r c C sx t | jd��} tj| �}|dkr$dS tj|�}|dkrt|dkrLddlm} ntj||�}tj |�}t ||�}|t|< |S )u< Look for an encoding by its label. This is the spec’s `get an encoding <http://encoding.spec.whatwg.org/#concept-encoding-get>`_ algorithm. Supported labels are listed there. :param label: A string. :returns: An :class:`Encoding` object, or :obj:`None` for an unknown label. z Nzx-user-definedr )� codec_info) r �stripr �get�CACHE�x_user_definedr � PYTHON_NAMES�codecs�lookup�Encoding)�label�name�encodingr � python_namer r r r = s r c C s. t | d�r| S t| �}|dkr*td| ��|S )z� Accept either an encoding object or label. :param encoding: An :class:`Encoding` object or a label string. :returns: An :class:`Encoding` object. :raises: :exc:`~exceptions.LookupError` for an unknown label. r NzUnknown encoding label: %r)�hasattrr � LookupError)�encoding_or_labelr r r r � _get_encoding[ s r c @ s e Zd ZdZdd� Zdd� ZdS )r aO Reresents a character encoding such as UTF-8, that can be used for decoding or encoding. .. attribute:: name Canonical name of the encoding .. attribute:: codec_info The actual implementation of the encoding, a stdlib :class:`~codecs.CodecInfo` object. See :func:`codecs.register`. c C s || _ || _d S )N)r r )�selfr r r r r �__init__| s zEncoding.__init__c C s d| j S )Nz <Encoding %s>)r )r r r r �__repr__� s zEncoding.__repr__N)�__name__� __module__� __qualname__�__doc__r! r" r r r r r m s r zutf-8zutf-16lezutf-16be�replacec C s2 t |�}t| �\}} |p|}|jj| |�d |fS )a� Decode a single string. :param input: A byte string :param fallback_encoding: An :class:`Encoding` object or a label string. The encoding to use if :obj:`input` does note have a BOM. :param errors: Type of error handling. See :func:`codecs.register`. :raises: :exc:`~exceptions.LookupError` for an unknown encoding label. :return: A ``(output, encoding)`` tuple of an Unicode string and an :obj:`Encoding`. r )r � _detect_bomr r )�input�fallback_encoding�errors� bom_encodingr r r r r � s r c C sV | j d�rt| dd� fS | j d�r4t| dd� fS | j d�rNt| dd� fS d| fS )zBReturn (bom_encoding, input), with any BOM removed from the input.s ��� Ns ��s � )� startswith�_UTF16LE�_UTF16BE�UTF8)r) r r r r( � s r( �strictc C s t |�jj| |�d S )a; Encode a single string. :param input: An Unicode string. :param encoding: An :class:`Encoding` object or a label string. :param errors: Type of error handling. See :func:`codecs.register`. :raises: :exc:`~exceptions.LookupError` for an unknown encoding label. :return: A byte string. r )r r r )r) r r+ r r r r � s r c C s$ t ||�}t| |�}t|�}||fS )a� "Pull"-based decoder. :param input: An iterable of byte strings. The input is first consumed just enough to determine the encoding based on the precense of a BOM, then consumed on demand when the return value is. :param fallback_encoding: An :class:`Encoding` object or a label string. The encoding to use if :obj:`input` does note have a BOM. :param errors: Type of error handling. See :func:`codecs.register`. :raises: :exc:`~exceptions.LookupError` for an unknown encoding label. :returns: An ``(output, encoding)`` tuple. :obj:`output` is an iterable of Unicode strings, :obj:`encoding` is the :obj:`Encoding` that is being used. )�IncrementalDecoder�_iter_decode_generator�next)r) r* r+ �decoder� generatorr r r r � iter_decode� s r9 c c s� |j }t| �} xf| D ].}||�}|r|jdk s2t�|jV |V P qW |ddd�}|jdk s`t�|jV |rr|V dS x | D ]}||�}|r||V q|W |ddd�}|r�|V dS )zqReturn a generator that first yields the :obj:`Encoding`, then yields output chukns as Unicode strings. N� T)�final)r �iterr �AssertionError)r) r7 r �chunck�outputr r r r5 � s, r5 c C s t ||�j}t| |�S )uY “Pull”-based encoder. :param input: An iterable of Unicode strings. :param encoding: An :class:`Encoding` object or a label string. :param errors: Type of error handling. See :func:`codecs.register`. :raises: :exc:`~exceptions.LookupError` for an unknown encoding label. :returns: An iterable of byte strings. )�IncrementalEncoderr �_iter_encode_generator)r) r r+ r r r r � iter_encode� s rB c c s: x | D ]}||�}|r|V qW |ddd�}|r6|V d S )N� T)r; r )r) r r> r? r r r rA s rA c @ s$ e Zd ZdZd dd�Zd dd�ZdS ) r4 uO “Push”-based decoder. :param fallback_encoding: An :class:`Encoding` object or a label string. The encoding to use if :obj:`input` does note have a BOM. :param errors: Type of error handling. See :func:`codecs.register`. :raises: :exc:`~exceptions.LookupError` for an unknown encoding label. r' c C s& t |�| _|| _d| _d | _d | _d S )Nr: )r �_fallback_encoding�_errors�_buffer�_decoderr )r r* r+ r r r r! s zIncrementalDecoder.__init__Fc C s~ | j }|dk r|||�S | j| }t|�\}}|dkrXt|�dk rR| rR|| _dS | j}|jj| j�j}|| _ || _ |||�S )z�Decode one chunk of the input. :param input: A byte string. :param final: Indicate that no more input is available. Must be :obj:`True` if this is the last call. :returns: An Unicode string. Nr. rC ) rG rF r( �lenrD r �incrementaldecoderrE r r )r r) r; r7 r r r r r ' s zIncrementalDecoder.decodeN)r' )F)r# r$ r% r& r! r r r r r r4 s r4 c @ s e Zd ZdZedfdd�ZdS )r@ u� “Push”-based encoder. :param encoding: An :class:`Encoding` object or a label string. :param errors: Type of error handling. See :func:`codecs.register`. :raises: :exc:`~exceptions.LookupError` for an unknown encoding label. .. method:: encode(input, final=False) :param input: An Unicode string. :param final: Indicate that no more input is available. Must be :obj:`True` if this is the last call. :returns: A byte string. r3 c C s t |�}|jj|�j| _d S )N)r r �incrementalencoderr )r r r+ r r r r! T s zIncrementalEncoder.__init__N)r# r$ r% r& r2 r! r r r r r@ C s r@ )r' )r' )r& � __future__r r �labelsr �VERSIONr r r r r �objectr r2 r0 r1 r r( r r9 r5 rB rA r4 r@ r r r r �<module> s2 3