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�Zfe@gd���Zge@�Zh	)d�d�d��Zid�d�d��ZjGd�d��d�ek�Zld�d��Zmd�d��Zne3�d"fd�d��Zod�d��Zpd�d�d��Zq	"d�d�d��Zrd�d�d��Zsd�d�d��Zt	"d�d�d��Zu	"d�d�d��Zvd"d�d"d"e;fd�d��Zwd�d��Zxd�d��Zyd�d��ZzGd�d��d�e{�Z|e|Z}e|�Z~d�d��Zd�d��Z�Gd�d��d�e{�Z�d�d�d��Z�dS)�aHyperlink provides Pythonic URL parsing, construction, and rendering.

Usage is straightforward::

   >>> import hyperlink
   >>> url = hyperlink.parse(u'http://github.com/mahmoud/hyperlink?utm_source=docs')
   >>> url.host
   u'github.com'
   >>> secure_url = url.replace(scheme=u'https')
   >>> secure_url.get('utm_source')[0]
   u'docs'

Hyperlink's API centers on the :class:`DecodedURL` type, which wraps
the lower-level :class:`URL`, both of which can be returned by the
:func:`parse()` convenience function.

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        var_name: Set this name to the name of the variable in its respective
            module enable pickle-ability.

    >>> make_sentinel(var_name='_MISSING')
    _MISSING

    The most common use cases here in boltons are as default values
    for optional function arguments, partly because of its
    less-confusing appearance in automatically generated
    documentation. Sentinels also function well as placeholders in queues
    and linked lists.

    .. note::

        By design, additional calls to ``make_sentinel`` with the same
        values will not produce equivalent objects.

        >>> make_sentinel('TEST') == make_sentinel('TEST')
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    Leaving *maximal* set to its default True percent-encodes
    everything required to convert a portion of an IRI to a portion of
    a URI.

    RFC 3986 3.3:

       If a URI contains an authority component, then the path component
       must either be empty or begin with a slash ("/") character.  If a URI
       does not contain an authority component, then the path cannot begin
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    schemes preregistered, so this function is mostly meant for
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    standards information. If a scheme seems to be missing, please
    `file an issue`_!

    Args:
        text: A string representation of the scheme.
            (the 'http' in 'http://hatnote.com')
        uses_netloc: Does the scheme support specifying a
            network host? For instance, "http" does, "mailto" does
            not. Defaults to True.
        default_port: The default port, if any, for
            netloc-using schemes.
        query_plus_is_space: If true, a "+" in the query string should be
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    locations or it does not.

    The URL type's approach to this is to check for explicitly
    registered schemes, with common schemes like HTTP
    preregistered. This is the same approach taken by
    :mod:`urlparse`.

    URL adds two additional heuristics if the scheme as a whole is
    not registered. First, it attempts to check the subpart of the
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    u'aw%2Fz'
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    percent-encoding must be decodable as *subencoding*. If a
    non-*subencoding*-valid string is passed, the original text is
    returned with no changes applied.

    Only called by field-tailored variants, e.g.,
    :func:`_decode_path_part`, as every percent-encodable part of the
    URL has characters which should not be percent decoded.

    >>> _percent_decode(u'abc%20def')
    u'abc def'

    Args:
        text: Text with percent-encoding present.
        normalize_case: Whether undecoded percent segments, such as encoded
            delimiters, should be uppercased, per RFC 3986 Section 2.1.
            See :func:`_decode_path_part` for an example.
        subencoding: The name of the encoding underlying the percent-encoding.
        raise_subencoding_exc: Whether an error in decoding the bytes
            underlying the percent-decoding should be raised.

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        Text: The percent-decoded version of *text*, decoded by *subencoding*.
    �%rrNrs%25�)r�UnicodeEncodeErrorr��len�append�KeyErrorrD�upperrlr�UnicodeDecodeError)rnr�subencoding�raise_subencoding_excrr�quoted_bytes�bits�resr�item�hexpair�rest�pair_is_hex�unquoted_bytesr#r#r$r�sD%�



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�rcCs\|sdSz|�d�}Wnty|}Y|Swz	t|dd�}W|Sty-|}Y|Sw)u�Decode a host from ASCII-encodable text to IDNA-decoded text. If
    the host text is not ASCII, it is returned unchanged, as it is
    presumed that it is already IDNA-decoded.

    Some technical details: _decode_host is built on top of the "idna"
    package, which has some quirks:

    Capital letters are not valid IDNA2008. The idna package will
    raise an exception like this on capital letters:

    > idna.core.InvalidCodepoint: Codepoint U+004B at position 1 ... not allowed

    However, if a segment of a host (i.e., something in
    url.host.split('.')) is already ASCII, idna doesn't perform its
    usual checks. In fact, for capital letters it automatically
    lowercases them.

    This check and some other functionality can be bypassed by passing
    uts46=True to idna.encode/decode. This allows a more permissive and
    convenient interface. So far it seems like the balanced approach.

    Example output (from idna==2.6):

    >> idna.encode(u'mahmöud.io')
    'xn--mahmud-zxa.io'
    >> idna.encode(u'Mahmöud.io')
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
      File "/home/mahmoud/virtualenvs/hyperlink/local/lib/python2.7/site-packages/idna/core.py", line 355, in encode
        result.append(alabel(label))
      File "/home/mahmoud/virtualenvs/hyperlink/local/lib/python2.7/site-packages/idna/core.py", line 276, in alabel
        check_label(label)
      File "/home/mahmoud/virtualenvs/hyperlink/local/lib/python2.7/site-packages/idna/core.py", line 253, in check_label
        raise InvalidCodepoint('Codepoint {0} at position {1} of {2} not allowed'.format(_unot(cp_value), pos+1, repr(label)))
    idna.core.InvalidCodepoint: Codepoint U+004D at position 1 of u'Mahmöud' not allowed
    >> idna.encode(u'Mahmoud.io')
    'Mahmoud.io'

    # Similar behavior for decodes below
    >> idna.decode(u'Mahmoud.io')
    u'mahmoud.io
    >> idna.decode(u'Méhmoud.io', uts46=True)
    u'méhmoud.io'
    rr4T��uts46)rr�idna_decoder�)�host�
host_bytes�	host_textr#r#r$�_decode_hosts.
���r-cCsbg}|D]}|dkrq|dkr|r|��q|�|�qt|dd��dgdgfvr/|�d�|S)a�Normalize the URL path by resolving segments of '.' and '..'. For
    more details, see `RFC 3986 section 5.2.4, Remove Dot Segments`_.

    Args:
       path: sequence of path segments in text form

    Returns:
       A new sequence of path segments with the '.' and '..' elements removed
           and resolved.

    .. _RFC 3986 section 5.2.4, Remove Dot Segments: https://tools.ietf.org/html/rfc3986#section-5.2.4
    �.z..r�Nr)rIr�list)�path�segs�segr#r#r$�_resolve_dot_segmentsEs�
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    is the appropriate :mod:`socket` module constant when the host is
    an IP address. Family is ``None`` when the host is not an IP.

    Will raise :class:`URLParseError` on invalid IPv6 constants.

    Returns:
        family (socket constant or None), host (string)

    >>> import socket
    >>> parse_host('googlewebsite.com') == (None, 'googlewebsite.com')
    True
    >>> parse_host('::1') == (socket.AF_INET6, '::1')
    True
    >>> parse_host('192.168.1.1') == (socket.AF_INET, '192.168.1.1')
    True
    )Nrr@zinvalid IPv6 host: %r (%r)N)rr�socket�errorr�rr)r*�se�familyr#r#r$�
parse_hostds,��	��r8c	@s�eZdZdZ									dMdd�ZdNdd	�Zed
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edd��Zedd��Zedd��ZdNdd�Zd d!�Zd"d#�Zd$d%�Zed&d'��Zeeeeeeeeef	d(d)�Zed*d+��Z	,	,	,	,	,	,	,dOd-d.�Zd/d0�Zd1d2�ZdPd3d4�Zd5d6�Zd7d8�ZdNd9d:�Z d;d<�Z!d=d>�Z"e#r�e"Z$e Z%ne"Z&e Z$eZ'eZ(ed?d@��Z)dNdAdB�Z*dCdD�Z+dQdEdF�Z,dQdGdH�Z-dIdJ�Z.edfdKdL�Z/dS)R�URLa�From blogs to billboards, URLs are so common, that it's easy to
    overlook their complexity and power. With hyperlink's
    :class:`URL` type, working with URLs doesn't have to be hard.

    URLs are made of many parts. Most of these parts are officially
    named in `RFC 3986`_ and this diagram may prove handy in identifying
    them::

       foo://user:pass@example.com:8042/over/there?name=ferret#nose
       \_/   \_______/ \_________/ \__/\_________/ \_________/ \__/
        |        |          |        |      |           |        |
      scheme  userinfo     host     port   path       query   fragment

    While :meth:`~URL.from_text` is used for parsing whole URLs, the
    :class:`URL` constructor builds a URL from the individual
    components, like so::

        >>> from hyperlink import URL
        >>> url = URL(scheme=u'https', host=u'example.com', path=[u'hello', u'world'])
        >>> print(url.to_text())
        https://example.com/hello/world

    The constructor runs basic type checks. All strings are expected
    to be text (:class:`str` in Python 3, :class:`unicode` in Python 2). All
    arguments are optional, defaulting to appropriately empty values. A full
    list of constructor arguments is below.

    Args:
        scheme: The text name of the scheme.
        host: The host portion of the network location
        port: The port part of the network location. If ``None`` or no port is
            passed, the port will default to the default port of the scheme, if
            it is known. See the ``SCHEME_PORT_MAP`` and
            :func:`register_default_port` for more info.
        path: A tuple of strings representing the slash-separated parts of the
            path, each percent-encoded.
        query: The query parameters, as a dictionary or as an sequence of
            percent-encoded key-value pairs.
        fragment: The fragment part of the URL.
        rooted: A rooted URL is one which indicates an absolute path.
            This is True on any URL that includes a host, or any relative URL
            that starts with a slash.
        userinfo: The username or colon-separated username:password pair.
        uses_netloc: Indicates whether ``://`` (the "netloc separator") will
            appear to separate the scheme from the *path* in cases where no
            host is present.
            Setting this to ``True`` is a non-spec-compliant affordance for the
            common practice of having URIs that are *not* URLs (cannot have a
            'host' part) but nevertheless use the common ``://`` idiom that
            most people associate with URLs; e.g. ``message:`` URIs like
            ``message://message-id`` being equivalent to ``message:message-id``.
            This may be inferred based on the scheme depending on whether
            :func:`register_scheme` has been used to register the scheme and
            should not be passed directly unless you know the scheme works like
            this and you know it has not been registered.

    All of these parts are also exposed as read-only attributes of :class:`URL`
    instances, along with several useful methods.

    .. _RFC 3986: https://tools.ietf.org/html/rfc3986
    .. _RFC 3987: https://tools.ietf.org/html/rfc3987
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            fragment: The fragment part of the URL.
            port: The port part of the network location.
            rooted: Whether or not the path begins with a slash.
            userinfo: The username or colon-separated username:password pair.
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        * Resolve any "." and ".." references in the path (`RFC 3986 6.2.2.3`_)
        * Ensure an ending slash on URLs with an empty path (`RFC 3986 6.2.3`_)
        * Encode any stray percent signs (`%`) in percent-encoded
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        All are applied by default, but normalizations can be disabled
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        name.

        Args:
            scheme: Convert the scheme to lowercase
            host: Convert the host to lowercase
            path: Normalize the path (see above for details)
            query: Normalize the query string
            fragment: Normalize the fragment
            userinfo: Normalize the userinfo
            percents: Encode isolated percent signs for any percent-encoded
                fields which are being normalized (defaults to `True`).

        >>> url = URL.from_text(u'Http://example.COM/a/../b/./c%2f?%61%')
        >>> print(url.normalize().to_text())
        http://example.com/b/c%2F?a%25

        .. _RFC 3986 3.2.2: https://tools.ietf.org/html/rfc3986#section-3.2.2
        .. _RFC 3986 2.3: https://tools.ietf.org/html/rfc3986#section-2.3
        .. _RFC 3986 2.1: https://tools.ietf.org/html/rfc3986#section-2.1
        .. _RFC 3986 6.2.2.3: https://tools.ietf.org/html/rfc3986#section-6.2.2.3
        .. _RFC 3986 6.2.3: https://tools.ietf.org/html/rfc3986#section-6.2.3
        .. _RFC 3986 2.4: https://tools.ietf.org/html/rfc3986#section-2.4
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            >>> child_url.to_text()
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        Args:
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            >>> url.click(u'/post/155074058790').to_text()
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            >>> url = URL.from_text(u'http://localhost/a/b/c/')
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            u'http://localhost/a/b/d/e'

        Args (Text):
            href: A string representing a clicked URL.

        Return:
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        Returns:
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        Args:
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            URL.from_text(u'https://example.com/?x')
            >>> URL.from_text(u'https://example.com/?x=y').set(u'x', u'z')
            URL.from_text(u'https://example.com/?x=z')

        Args:
            name: The name of the query parameter to set.
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