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� S ) aB Determine the character encoding of a CSS stylesheet and decode it.
This is based on the presence of a :abbr:`BOM (Byte Order Mark)`,
a ``@charset`` rule, and encoding meta-information.
:type css_bytes: :obj:`bytes`
:param css_bytes: A CSS byte string.
:type protocol_encoding: :obj:`str`
:param protocol_encoding:
The encoding label, if any, defined by HTTP or equivalent protocol.
(e.g. via the ``charset`` parameter of the ``Content-Type`` header.)
:type environment_encoding: :class:`webencodings.Encoding`
:param environment_encoding:
The `environment encoding
<https://www.w3.org/TR/css-syntax/#environment-encoding>`_, if any.
:returns:
A 2-tuple of a decoded Unicode string and the
:class:`webencodings.Encoding` object that was used.
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startswith�find�namer )� css_bytes�protocol_encoding�environment_encoding�fallback� end_quotes �0/usr/lib/python3/dist-packages/tinycss2/bytes.py�decode_stylesheet_bytesr s� � �. ��+�,�� ��)�X�.� .����M�*� �N�N�4��S�1� � ��?�y� 3� 3�E�9� E� �i��9� 5� <� <�X� F�G�H���=�=�$<�<�!�)�T�2�2� �i��2�2���i�!5�6�6� �)�T� "�"� c �D � t | ||� \ }}t |||� }||fS )a} Parse :diagram:`stylesheet` from bytes,
determining the character encoding as web browsers do.
This is used when reading a file or fetching a URL.
The character encoding is determined from the initial bytes
(a :abbr:`BOM (Byte Order Mark)` or a ``@charset`` rule)
as well as the parameters. The ultimate fallback is UTF-8.
:type css_bytes: :obj:`bytes`
:param css_bytes: A CSS byte string.
:type protocol_encoding: :obj:`str`
:param protocol_encoding:
The encoding label, if any, defined by HTTP or equivalent protocol.
(e.g. via the ``charset`` parameter of the ``Content-Type`` header.)
:type environment_encoding: :class:`webencodings.Encoding`
:param environment_encoding:
The `environment encoding`_, if any.
:type skip_comments: :obj:`bool`
:param skip_comments:
Ignore CSS comments at the top-level of the stylesheet.
If the input is a string, ignore all comments.
:type skip_whitespace: :obj:`bool`
:param skip_whitespace:
Ignore whitespace at the top-level of the stylesheet.
Whitespace is still preserved
in the :attr:`~tinycss2.ast.QualifiedRule.prelude`
and the :attr:`~tinycss2.ast.QualifiedRule.content` of rules.
:returns:
A ``(rules, encoding)`` tuple.
* ``rules`` is a list of
:class:`~tinycss2.ast.QualifiedRule`,
:class:`~tinycss2.ast.AtRule`,
:class:`~tinycss2.ast.Comment` (if ``skip_comments`` is false),
:class:`~tinycss2.ast.WhitespaceToken`
(if ``skip_whitespace`` is false),
and :class:`~tinycss2.ast.ParseError` objects.
* ``encoding`` is the :class:`webencodings.Encoding` object
that was used.
If ``rules`` contains an ``@import`` rule, this is
the `environment encoding`_ for the imported stylesheet.
.. _environment encoding:
https://www.w3.org/TR/css-syntax/#environment-encoding
.. code-block:: python
response = urlopen('http://example.net/foo.css')
rules, encoding = parse_stylesheet_bytes(
css_bytes=response.read(),
# Python 3.x
protocol_encoding=response.info().get_content_type().get_param('charset'),
# Python 2.x
protocol_encoding=response.info().gettype().getparam('charset'),
)
for rule in rules:
...
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