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�

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.. testsetup::

    from pip._vendor.packaging.specifiers import Specifier, SpecifierSet, InvalidSpecifier
    from pip._vendor.packaging.version import Version
�)�annotationsN)�Callable�Iterable�Iterator�TypeVar�Union�)�canonicalize_version)�Version�UnparsedVersionVar)�bound�version�UnparsedVersion�returnrc�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��eZdZejdd���Zejdd���Zejdd	���Zeejdd�����Z	e	j
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        Nr��selfs r�__str__zBaseSpecifier.__str__-����r�intc��dS)zF
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        Nrr"s r�__hash__zBaseSpecifier.__hash__4r%r�other�object�boolc��dS)z�
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        :param other: The other object to check against.
        Nr�r#r)s  r�__eq__zBaseSpecifier.__eq__:r%r�bool | Nonec��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.prereleasesCr%r�value�Nonec��dS)zQSetter for :attr:`prereleases`.

        :param value: The value to set.
        Nr�r#r2s  rr1zBaseSpecifier.prereleasesLr%rN�itemr1c��dS)zR
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        Nr)r#r6r1s   r�containszBaseSpecifier.containsSr%r�iterable�Iterable[UnparsedVersionVar]�Iterator[UnparsedVersionVar]c��dS)z�
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        Nr)r#r9r1s   r�filterzBaseSpecifier.filterYr%r�rr �rr&�r)r*rr+�rr/�r2r+rr3r)r6r r1r/rr+�r9r:r1r/rr;)
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	�����������������X����������	���������
	��QU���������rr)�	metaclassc	��eZdZdZdZdZejdezezdzejej	z��Z
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d�Zd>d?d�Ze
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dCd!���ZdDd#�ZdEd&�ZdFd)�ZdGd,�ZdGd-�ZdGd.�ZdGd/�ZdGd0�ZdHd2�ZdHd3�ZdGd4�ZdId7�Z dJdKd9�Z!	dJdLd=�Z"dS)M�	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
                # release segment.
                (?<=~=)               # Only match for the compatible operator

                \s*
                v?
                (?:[0-9]+!)?          # epoch
                [0-9]+(?:\.[0-9]+)+   # release  (We have a + instead of a *)
                (?:                   # 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
            )
            |
            (?:
                # All other operators only allow a sub set of what the
                # (non)equality operators do. Specifically they do not allow
                # local versions to be specified nor do they allow the prefix
                # matching wild cards.
                (?<!==|!=|~=)         # We have special cases for these
                                      # operators so we want to make sure they
                                      # don't match here.

                \s*
                v?
                (?:[0-9]+!)?          # epoch
                [0-9]+(?:\.[0-9]+)*   # release
                (?:                   # 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
            )
        )
        z^\s*z\s*$�
compatible�equal�	not_equal�less_than_equal�greater_than_equal�	less_than�greater_than�	arbitrary)�~=�==z!=�<=�>=�<�>�===�N�specr r1r/rr3c��|j�|��}|std|�����|�d�����|�d�����f|_||_dS)a�Initialize a Specifier instance.

        :param spec:
            The string representation of a specifier which will be parsed and
            normalized before use.
        :param prereleases:
            This tells the specifier if it should accept prerelease versions if
            applicable or not. The default of ``None`` will autodetect it from the
            given specifiers.
        :raises InvalidSpecifier:
            If the given specifier is invalid (i.e. bad syntax).
        zInvalid specifier: �operatorrN)�_regex�searchr�group�strip�_spec�_prereleases)r#r[r1�matchs    r�__init__zSpecifier.__init__�s�����"�"�4�(�(���	C�"�#A��#A�#A�B�B�B�
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��t��urr2c��||_dSr�rcr5s  rr1zSpecifier.prereleases���!����rc��|jdS)z`The operator of this specifier.

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        '=='
        r�rbr"s rr]zSpecifier.operator����z�!�}�rc��|jdS)zaThe version of this specifier.

        >>> Specifier("==1.2.3").version
        '1.2.3'
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d|j��nd}d|jj�dt	|���|�d�S)aTA representation of the Specifier that shows all internal state.

        >>> Specifier('>=1.0.0')
        <Specifier('>=1.0.0')>
        >>> Specifier('>=1.0.0', prereleases=False)
        <Specifier('>=1.0.0', prereleases=False)>
        >>> Specifier('>=1.0.0', prereleases=True)
        <Specifier('>=1.0.0', prereleases=True)>
        N�, prereleases=rZrW�(�)>)rcr1�	__class__rr �r#�pres  r�__repr__zSpecifier.__repr__&sT��� �
�1�T�-�1�1�1��	�B�4�>�*�A�A�S��Y�Y�A�#�A�A�A�Arc� �dj|j�S)z�A string representation of the Specifier that can be round-tripped.

        >>> str(Specifier('>=1.0.0'))
        '>=1.0.0'
        >>> str(Specifier('>=1.0.0', prereleases=False))
        '>=1.0.0'
        z{}{})�formatrbr"s rr$zSpecifier.__str__8s���v�}�d�j�)�)r�tuple[str, str]c�v�t|jd|jddk���}|jd|fS)Nr	rrS��strip_trailing_zero)r
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���z�!�}�/�/�/rr&c�*�t|j��Sr)�hashr�r"s rr(zSpecifier.__hash__Js���D�(�)�)�)rr)r*c��t|t��r;	|�t|����}n3#t$r
tcYSwxYwt||j��stS|j|jkS)a>Whether or not the two Specifier-like objects are equal.

        :param other: The other object to check against.

        The value of :attr:`prereleases` is ignored.

        >>> Specifier("==1.2.3") == Specifier("== 1.2.3.0")
        True
        >>> (Specifier("==1.2.3", prereleases=False) ==
        ...  Specifier("==1.2.3", prereleases=True))
        True
        >>> Specifier("==1.2.3") == "==1.2.3"
        True
        >>> Specifier("==1.2.3") == Specifier("==1.2.4")
        False
        >>> Specifier("==1.2.3") == Specifier("~=1.2.3")
        False
        )rr rvr�NotImplementedr�r-s  rr.zSpecifier.__eq__Ms���&�e�S�!�!�	"�
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�T�!�	��5��"�	�{�'A�	��{�/�0�0�G�D�<M�4N�4N�N�
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�trc��t|�����t|�����kSr)r �lowerr�s   r�_compare_arbitraryzSpecifier._compare_arbitrary�s1���;���%�%�'�'�3�t�9�9�?�?�+<�+<�<�<rr6�
str | Versionc�,�|�|��S)a;Return 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 Specifier(">=1.2.3")
        True
        >>> Version("1.2.3") in Specifier(">=1.2.3")
        True
        >>> "1.0.0" in Specifier(">=1.2.3")
        False
        >>> "1.3.0a1" in Specifier(">=1.2.3")
        False
        >>> "1.3.0a1" in Specifier(">=1.2.3", prereleases=True)
        True
        �r8�r#r6s  r�__contains__zSpecifier.__contains__����&�}�}�T�"�"�"rrc��|�|j}t|��}|jr|sdS|�|j��}|||j��S)alReturn whether or not the item is contained in this specifier.

        :param item:
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            :class:`Version` instance.
        :param prereleases:
            Whether or not to match prereleases with this Specifier. If set to
            ``None`` (the default), it uses :attr:`prereleases` to determine
            whether or not prereleases are allowed.

        >>> Specifier(">=1.2.3").contains("1.2.3")
        True
        >>> Specifier(">=1.2.3").contains(Version("1.2.3"))
        True
        >>> Specifier(">=1.2.3").contains("1.0.0")
        False
        >>> Specifier(">=1.2.3").contains("1.3.0a1")
        False
        >>> Specifier(">=1.2.3", prereleases=True).contains("1.3.0a1")
        True
        >>> Specifier(">=1.2.3").contains("1.3.0a1", prereleases=True)
        True
        NF)r1rrjr�r]r)r#r6r1�normalized_itemr�s     rr8zSpecifier.contains	si��4�	+��*�K�*�$�/�/��
�(�	��	��5�/3�.@�.@���.O�.O�� � ��$�,�?�?�?rr9r:r;c#��K�d}g}d|�|ndi}|D]K}t|��}|j|fi|��r,|jr|s|js|�|���Ed}|V��L|s|r|D]
}|V��dSdSdS)aOFilter items in the given iterable, that match the specifier.

        :param iterable:
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            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(Specifier().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(Specifier(">=1.2.3").filter(["1.2", "1.3", "1.5a1"]))
        ['1.3']
        >>> list(Specifier(">=1.2.3").filter(["1.2", "1.2.3", "1.3", Version("1.4")]))
        ['1.2.3', '1.3', <Version('1.4')>]
        >>> list(Specifier(">=1.2.3").filter(["1.2", "1.5a1"]))
        ['1.5a1']
        >>> list(Specifier(">=1.2.3").filter(["1.3", "1.5a1"], prereleases=True))
        ['1.3', '1.5a1']
        >>> list(Specifier(">=1.2.3", prereleases=True).filter(["1.3", "1.5a1"]))
        ['1.3', '1.5a1']
        Fr1NT)rr8rjr1�append)r#r9r1�yielded�found_prereleases�kwr�parsed_versions        rr=zSpecifier.filter5s�����<�����K�M�[�[��
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�(&/�&/�&/�&/�P:�:�:�:�<�<�<�<�<�<�<�<�����0����<=�=�=�=�#�#�#�#�**@�*@�*@�*@�*@�ZRV�;�;�;�;�;�;�;rrJz^([0-9]+)((?:a|b|c|rc)[0-9]+)$r �	list[str]c�L�g}|�d��\}}}|�|pd��|�d��D][}t�|��}|r(|�|������F|�|���\|S)aSplit version into components.

    The split components are intended for version comparison. The logic does
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    �!�0�.)�
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            as is.
        :param prereleases:
            This tells the SpecifierSet if it should accept prerelease versions if
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d|j��nd}dt|���|�d�S)aA representation of the specifier set that shows all internal state.

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        <SpecifierSet('!=2.0.0,>=1.0.0')>
        >>> SpecifierSet('>=1.0.0,!=2.0.0', prereleases=False)
        <SpecifierSet('!=2.0.0,>=1.0.0', prereleases=False)>
        >>> SpecifierSet('>=1.0.0,!=2.0.0', prereleases=True)
        <SpecifierSet('!=2.0.0,>=1.0.0', prereleases=True)>
        NrsrZz<SpecifierSet(ru)rcr1r rws  rryzSpecifierSet.__repr__�sF��� �
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        >>> str(SpecifierSet(">=1.0.0,!=1.0.1"))
        '!=1.0.1,>=1.0.0'
        >>> str(SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False))
        '!=1.0.1,>=1.0.0'
        rc3�4K�|]}t|��V��dSr)r rs  rr�z'SpecifierSet.__str__.<locals>.<genexpr>s(����;�;�!�s�1�v�v�;�;�;�;�;�;r)r��sortedr
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r"s rr(zSpecifierSet.__hash__s���D�K� � � rr)�SpecifierSet | strc��t|t��rt|��}nt|t��stSt��}t	|j|jz��|_|j�|j�
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        >>> SpecifierSet(">=1.0.0,!=1.0.1") & '<=2.0.0,!=2.0.1'
        <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')
        <SpecifierSet('!=1.0.1,!=2.0.1,<=2.0.0,>=1.0.0')>
        NzFCannot combine SpecifierSets with True and False prerelease overrides.)rr r�r�rr
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        :param other: The other object to check against.

        The value of :attr:`prereleases` is ignored.

        >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0,!=1.0.1")
        True
        >>> (SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False) ==
        ...  SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True))
        True
        >>> SpecifierSet(">=1.0.0,!=1.0.1") == ">=1.0.0,!=1.0.1"
        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 rJr�r�r
r-s  rr.zSpecifierSet.__eq__8sW��&�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
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        [<Specifier('!=1.0.1')>, <Specifier('>=1.0.0')>]
        )�iterr
r"s r�__iter__zSpecifierSet.__iter__Vs���D�K� � � rr6rc�,�|�|��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__`r�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)rNr�)r�rr6r1s  ��rr�z(SpecifierSet.contains.<locals>.<genexpr>�s3�����R�R��1�:�:�d��:�<�<�R�R�R�R�R�Rr)rrr1rjr��allr
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�	+��*�K��	�t�1�	��5��	.��+�	.��4�,�-�-�D��R�R�R�R�R�d�k�R�R�R�R�R�Rrr9r:r;c��|�|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)r1r
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