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.. testsetup::

    from packaging.specifiers import Specifier, SpecifierSet, InvalidSpecifier
    from packaging.version import Version
�N)	�Callable�Iterable�Iterator�List�Optional�Set�Tuple�TypeVar�Union�)�canonicalize_version)�Version�UnparsedVersionVar)�bound�version�returnc�N�t|t��st|��}|S�N)�
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    Raised when attempting to create a :class:`Specifier` with a specifier
    string that is invalid.

    >>> Specifier("lolwat")
    Traceback (most recent call last):
        ...
    packaging.specifiers.InvalidSpecifier: Invalid specifier: 'lolwat'
    N)�__name__�
__module__�__qualname__�__doc__�rrrr(s���������rrc	��eZdZejdefd���Zejdefd���Zejde	de
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BaseSpecifierrc��dS)z�
        Returns the str representation of this Specifier-like object. This
        should be representative of the Specifier itself.
        Nr��selfs r�__str__zBaseSpecifier.__str__5����rc��dS)zF
        Returns a hash value for this Specifier-like object.
        Nrr#s r�__hash__zBaseSpecifier.__hash__<r&r�otherc��dS)z�
        Returns a boolean representing whether or not the two Specifier-like
        objects are equal.

        :param other: The other object to check against.
        Nr�r$r)s  r�__eq__zBaseSpecifier.__eq__Br&rc��dS)z�Whether or not pre-releases as a whole are allowed.

        This can be set to either ``True`` or ``False`` to explicitly enable or disable
        prereleases or it can be set to ``None`` (the default) to use default semantics.
        Nrr#s r�prereleaseszBaseSpecifier.prereleasesKr&r�valueNc��dS)zQSetter for :attr:`prereleases`.

        :param value: The value to set.
        Nr�r$r/s  rr.zBaseSpecifier.prereleasesTr&r�itemr.c��dS)zR
        Determines if the given item is contained within this specifier.
        Nr)r$r2r.s   r�containszBaseSpecifier.contains[r&r�iterablec��dS)z�
        Takes an iterable of items and filters them so that only items which
        are contained within this specifier are allowed in it.
        Nr)r$r5r.s   r�filterzBaseSpecifier.filterar&rr)rrr�abc�abstractmethod�strr%�intr(�object�boolr,�propertyrr.�setterr4rrrr7rrrr!r!4s�����������������	���#�������
	���F��t�����������X�d�^�������X�������$�������	����S��x��~���������
	��TX��� �!3�4��CK�D�>��	�$�	%��������rr!)�	metaclassc	��eZdZdZdZdZejdezezdzejej	z��Z
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eddfd�Zedefd���Zejdeddfd���Zedefd���Zedefd���Zdefd�Zdefd�Zedeeeffd���Zdefd�Zdedefd�Zd edefd!�Zd"ededefd#�Z d"ededefd$�Z!d"ededefd%�Z"d"ededefd&�Z#d"ededefd'�Z$d"ed(edefd)�Z%d"ed(edefd*�Z&d"ededefd+�Z'd,e(eefdefd-�Z)	d2d,e*de
edefd.�Z+	d2d/e,e-de
ede.e-fd0�Z/dS)3�	Specifiera?This class abstracts handling of version specifiers.

    .. tip::

        It is generally not required to instantiate this manually. You should instead
        prefer to work with :class:`SpecifierSet` instead, which can parse
        comma-separated version specifiers (which is what package metadata contains).
    z8
        (?P<operator>(~=|==|!=|<=|>=|<|>|===))
        a�
        (?P<version>
            (?:
                # The identity operators allow for an escape hatch that will
                # do an exact string match of the version you wish to install.
                # This will not be parsed by PEP 440 and we cannot determine
                # any semantic meaning from it. This operator is discouraged
                # but included entirely as an escape hatch.
                (?<====)  # Only match for the identity operator
                \s*
                [^\s;)]*  # The arbitrary version can be just about anything,
                          # we match everything except for whitespace, a
                          # semi-colon for marker support, and a closing paren
                          # since versions can be enclosed in them.
            )
            |
            (?:
                # The (non)equality operators allow for wild card and local
                # versions to be specified so we have to define these two
                # operators separately to enable that.
                (?<===|!=)            # Only match for equals and not equals

                \s*
                v?
                (?:[0-9]+!)?          # epoch
                [0-9]+(?:\.[0-9]+)*   # release

                # You cannot use a wild card and a pre-release, post-release, a dev or
                # local version together so group them with a | and make them optional.
                (?:
                    \.\*  # Wild card syntax of .*
                    |
                    (?:                                  # pre release
                        [-_\.]?
                        (alpha|beta|preview|pre|a|b|c|rc)
                        [-_\.]?
                        [0-9]*
                    )?
                    (?:                                  # post release
                        (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
                    )?
                    (?:[-_\.]?dev[-_\.]?[0-9]*)?         # dev release
                    (?:\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*)? # local
                )?
            )
            |
            (?:
                # The compatible operator requires at least two digits in the
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        <SpecifierSet('!=2.0.0,>=1.0.0', prereleases=False)>
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        <SpecifierSet('!=1.0.1,!=2.0.1,<=2.0.0,>=1.0.0')>
        >>> SpecifierSet(">=1.0.0,!=1.0.1") & SpecifierSet('<=2.0.0,!=2.0.1')
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        True
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        True
        >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0")
        False
        >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0,!=1.0.2")
        False
        )rr:rBr�r}r�r+s  rr,zSpecifierSet.__eq__-sW��&�e�c�9�-�.�.�	"� ��U���,�,�E�E��E�<�0�0�	"�!�!��{�e�l�*�*rc�*�t|j��S)z7Returns the number of specifiers in this specifier set.)r�r�r#s r�__len__zSpecifierSet.__len__Gs���4�;���rc�*�t|j��S)z�
        Returns an iterator over all the underlying :class:`Specifier` instances
        in this specifier set.

        >>> sorted(SpecifierSet(">=1.0.0,!=1.0.1"), key=str)
        [<Specifier('!=1.0.1')>, <Specifier('>=1.0.0')>]
        )�iterr�r#s r�__iter__zSpecifierSet.__iter__Ks���D�K� � � rr2c�,�|�|��S)arReturn whether or not the item is contained in this specifier.

        :param item: The item to check for.

        This is used for the ``in`` operator and behaves the same as
        :meth:`contains` with no ``prereleases`` argument passed.

        >>> "1.2.3" in SpecifierSet(">=1.0.0,!=1.0.1")
        True
        >>> Version("1.2.3") in SpecifierSet(">=1.0.0,!=1.0.1")
        True
        >>> "1.0.1" in SpecifierSet(">=1.0.0,!=1.0.1")
        False
        >>> "1.3.0a1" in SpecifierSet(">=1.0.0,!=1.0.1")
        False
        >>> "1.3.0a1" in SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True)
        True
        r�r�s  rr�zSpecifierSet.__contains__Ur�r�	installedc�����t�t��st������|j��s	�jrdS|r�jrt�j���t��fd�|jD����S)a�Return whether or not the item is contained in this SpecifierSet.

        :param item:
            The item to check for, which can be a version string or a
            :class:`Version` instance.
        :param prereleases:
            Whether or not to match prereleases with this SpecifierSet. If set to
            ``None`` (the default), it uses :attr:`prereleases` to determine
            whether or not prereleases are allowed.

        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.2.3")
        True
        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains(Version("1.2.3"))
        True
        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.0.1")
        False
        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.3.0a1")
        False
        >>> SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True).contains("1.3.0a1")
        True
        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.3.0a1", prereleases=True)
        True
        NFc3�F�K�|]}|������V��dS)r�Nr�)r�r�r2r.s  ��rr�z(SpecifierSet.contains.<locals>.<genexpr>�s3�����R�R��1�:�:�d��:�<�<�R�R�R�R�R�Rr)rrr.rcr��allr�)r$r2r.rs `` rr4zSpecifierSet.containsjs�����<�$��(�(�	!��4�=�=�D�
���*�K��	�t�1�	��5��	.��+�	.��4�,�-�-�D��R�R�R�R�R�d�k�R�R�R�R�R�Rrr5c��|�|j}|jr=|jD]&}|�|t|�����}�'t	|��Sg}g}|D]G}t|��}|jr|s|s|�|���2|�|���H|s|r|�t	|��St	|��S)a.Filter items in the given iterable, that match the specifiers in this set.

        :param iterable:
            An iterable that can contain version strings and :class:`Version` instances.
            The items in the iterable will be filtered according to the specifier.
        :param prereleases:
            Whether or not to allow prereleases in the returned iterator. If set to
            ``None`` (the default), it will be intelligently decide whether to allow
            prereleases or not (based on the :attr:`prereleases` attribute, and
            whether the only versions matching are prereleases).

        This method is smarter than just ``filter(SpecifierSet(...).contains, [...])``
        because it implements the rule from :pep:`440` that a prerelease item
        SHOULD be accepted if no other versions match the given specifier.

        >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.3", "1.5a1"]))
        ['1.3']
        >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.3", Version("1.4")]))
        ['1.3', <Version('1.4')>]
        >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.5a1"]))
        []
        >>> list(SpecifierSet(">=1.2.3").filter(["1.3", "1.5a1"], prereleases=True))
        ['1.3', '1.5a1']
        >>> list(SpecifierSet(">=1.2.3", prereleases=True).filter(["1.3", "1.5a1"]))
        ['1.3', '1.5a1']

        An "empty" SpecifierSet will filter items based on the presence of prerelease
        versions in the set.

        >>> list(SpecifierSet("").filter(["1.3", "1.5a1"]))
        ['1.3']
        >>> list(SpecifierSet("").filter(["1.5a1"]))
        ['1.5a1']
        >>> list(SpecifierSet("", prereleases=True).filter(["1.3", "1.5a1"]))
        ['1.3', '1.5a1']
        >>> list(SpecifierSet("").filter(["1.3", "1.5a1"], prereleases=True))
        ['1.3', '1.5a1']
        Nr�)r.r�r7r=rrrcr�)r$r5r.rS�filteredr�r2r�s        rr7zSpecifierSet.filter�s���X���*�K�
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Youez - 2016 - github.com/yon3zu
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