B
    `}                 @   s\  d dl mZmZmZ d dlZd dlZd dlZd dlZd dlZddl	m
Z
mZ ddlmZ ddlmZ ddlmZmZmZ erd dlmZmZmZmZmZmZmZmZ eeef Zeeeef Zeeege f Z!G d	d
 d
e"Z#G dd deej$e%Z&G dd de&Z'G dd de'Z(dd Z)G dd de'Z*e+dZ,dd Z-dd Z.G dd de&Z/dS )    )absolute_importdivisionprint_functionN   )string_typeswith_metaclass)TYPE_CHECKING)canonicalize_version)LegacyVersionVersionparse)CallableDictIterableIteratorListOptionalTupleUnionc               @   s   e Zd ZdZdS )InvalidSpecifierzH
    An invalid specifier was found, users should refer to PEP 440.
    N)__name__
__module____qualname____doc__ r   r   \/home/kop/projects/devel/pgwui/test_venv/lib/python3.7/site-packages/packaging/specifiers.pyr      s   r   c               @   s   e Zd Zejdd Zejdd Zejdd Zejdd Zej	d	d
 Z
e
jdd
 Z
ejdddZejdddZdS )BaseSpecifierc             C   s   dS )z
        Returns the str representation of this Specifier like object. This
        should be representative of the Specifier itself.
        Nr   )selfr   r   r   __str__    s    zBaseSpecifier.__str__c             C   s   dS )zF
        Returns a hash value for this Specifier like object.
        Nr   )r   r   r   r   __hash__(   s    zBaseSpecifier.__hash__c             C   s   dS )zq
        Returns a boolean representing whether or not the two Specifier like
        objects are equal.
        Nr   )r   otherr   r   r   __eq__/   s    zBaseSpecifier.__eq__c             C   s   dS )zu
        Returns a boolean representing whether or not the two Specifier like
        objects are not equal.
        Nr   )r   r    r   r   r   __ne__7   s    zBaseSpecifier.__ne__c             C   s   dS )zg
        Returns whether or not pre-releases as a whole are allowed by this
        specifier.
        Nr   )r   r   r   r   prereleases?   s    zBaseSpecifier.prereleasesc             C   s   dS )zd
        Sets whether or not pre-releases as a whole are allowed by this
        specifier.
        Nr   )r   valuer   r   r   r#   G   s    Nc             C   s   dS )zR
        Determines if the given item is contained within this specifier.
        Nr   )r   itemr#   r   r   r   containsO   s    zBaseSpecifier.containsc             C   s   dS )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   iterabler#   r   r   r   filterV   s    zBaseSpecifier.filter)N)N)r   r   r   abcabstractmethodr   r   r!   r"   abstractpropertyr#   setterr&   r(   r   r   r   r   r      s   r   c               @   s   e Zd Zi Zd"ddZdd Zdd Zed	d
 Zdd Z	dd Z
dd Zdd Zdd Zedd Zedd Zedd Zejdd Zdd Zd#ddZd$d d!ZdS )%_IndividualSpecifier Nc             C   sF   | j |}|std||d |d f| _|| _d S )NzInvalid specifier: '{0}'operatorversion)_regexsearchr   formatgroupstrip_spec_prereleases)r   specr#   matchr   r   r   __init__c   s    z_IndividualSpecifier.__init__c             C   s0   | j d k	rd| jnd}d| jjt| |S )Nz, prereleases={0!r}r.   z<{0}({1!r}{2})>)r7   r3   r#   	__class__r   str)r   prer   r   r   __repr__q   s    z_IndividualSpecifier.__repr__c             C   s   dj | j S )Nz{0}{1})r3   r6   )r   r   r   r   r   {   s    z_IndividualSpecifier.__str__c             C   s   | j d t| j d fS )Nr   r   )r6   r	   )r   r   r   r   _canonical_spec   s    z$_IndividualSpecifier._canonical_specc             C   s
   t | jS )N)hashr?   )r   r   r   r   r      s    z_IndividualSpecifier.__hash__c             C   sP   t |tr4y| t|}W qD tk
r0   tS X nt || jsDtS | j|jkS )N)
isinstancer   r;   r<   r   NotImplementedr?   )r   r    r   r   r   r!      s    
z_IndividualSpecifier.__eq__c             C   sP   t |tr4y| t|}W qD tk
r0   tS X nt || jsDtS | j|jkS )N)rA   r   r;   r<   r   rB   r6   )r   r    r   r   r   r"      s    
z_IndividualSpecifier.__ne__c             C   s   t | d| j| }|S )Nz_compare_{0})getattrr3   
_operators)r   opoperator_callabler   r   r   _get_operator   s    z"_IndividualSpecifier._get_operatorc             C   s   t |ttfst|}|S )N)rA   r
   r   r   )r   r0   r   r   r   _coerce_version   s    z$_IndividualSpecifier._coerce_versionc             C   s
   | j d S )Nr   )r6   )r   r   r   r   r/      s    z_IndividualSpecifier.operatorc             C   s
   | j d S )Nr   )r6   )r   r   r   r   r0      s    z_IndividualSpecifier.versionc             C   s   | j S )N)r7   )r   r   r   r   r#      s    z _IndividualSpecifier.prereleasesc             C   s
   || _ d S )N)r7   )r   r$   r   r   r   r#      s    c             C   s
   |  |S )N)r&   )r   r%   r   r   r   __contains__   s    z!_IndividualSpecifier.__contains__c             C   s>   |d kr| j }| |}|jr&|s&dS | | j}||| jS )NF)r#   rH   is_prereleaserG   r/   r0   )r   r%   r#   normalized_itemrF   r   r   r   r&      s    

z_IndividualSpecifier.containsc             c   s   d}g }d|d k	r|ndi}xJ|D ]B}|  |}| j|f|r"|jrZ|sZ| jsZ|| q"d}|V  q"W |s|rx|D ]
}|V  qvW d S )NFr#   T)rH   r&   rJ   r#   append)r   r'   r#   yieldedfound_prereleaseskwr0   parsed_versionr   r   r   r(      s    




z_IndividualSpecifier.filter)r.   N)N)N)r   r   r   rD   r:   r>   r   propertyr?   r   r!   r"   rG   rH   r/   r0   r#   r,   rI   r&   r(   r   r   r   r   r-   _   s"   


r-   c                   s   e Zd ZdZede d ejejB Zdddddd	d
Z	d fdd	Z
dd Zdd Zdd Zdd Zdd Zdd Zdd Z  ZS )LegacySpecifiera  
        (?P<operator>(==|!=|<=|>=|<|>))
        \s*
        (?P<version>
            [^,;\s)]* # Since this is a "legacy" specifier, and the version
                      # string can be just about anything, we match everything
                      # except for whitespace, a semi-colon for marker support,
                      # a closing paren since versions can be enclosed in
                      # them, and a comma since it's a version separator.
        )
        z^\s*z\s*$equal	not_equalless_than_equalgreater_than_equal	less_thangreater_than)z==z!=z<=z>=<>r.   Nc                s"   t t| || tdt d S )NzZCreating a LegacyVersion has been deprecated and will be removed in the next major release)superrR   r:   warningswarnDeprecationWarning)r   r8   r#   )r;   r   r   r:     s    zLegacySpecifier.__init__c             C   s   t |tstt|}|S )N)rA   r
   r<   )r   r0   r   r   r   rH   !  s    
zLegacySpecifier._coerce_versionc             C   s   ||  |kS )N)rH   )r   prospectiver8   r   r   r   _compare_equal'  s    zLegacySpecifier._compare_equalc             C   s   ||  |kS )N)rH   )r   r_   r8   r   r   r   _compare_not_equal+  s    z"LegacySpecifier._compare_not_equalc             C   s   ||  |kS )N)rH   )r   r_   r8   r   r   r   _compare_less_than_equal/  s    z(LegacySpecifier._compare_less_than_equalc             C   s   ||  |kS )N)rH   )r   r_   r8   r   r   r   _compare_greater_than_equal3  s    z+LegacySpecifier._compare_greater_than_equalc             C   s   ||  |k S )N)rH   )r   r_   r8   r   r   r   _compare_less_than7  s    z"LegacySpecifier._compare_less_thanc             C   s   ||  |kS )N)rH   )r   r_   r8   r   r   r   _compare_greater_than;  s    z%LegacySpecifier._compare_greater_than)r.   N)r   r   r   
_regex_strrecompileVERBOSE
IGNORECASEr1   rD   r:   rH   r`   ra   rb   rc   rd   re   __classcell__r   r   )r;   r   rR      s    
rR   c                s   t   fdd}|S )Nc                s   t |tsdS  | ||S )NF)rA   r   )r   r_   r8   )fnr   r   wrappedD  s    
z)_require_version_compare.<locals>.wrapped)	functoolswraps)rl   rm   r   )rl   r   _require_version_compare@  s    rp   c            	   @   s   e Zd ZdZede d ejejB Zdddddd	d
ddZ	e
dd Ze
dd Ze
dd Ze
dd Ze
dd Ze
dd Ze
dd Zdd Zedd Zejdd Zd S )!	Specifiera  
        (?P<operator>(~=|==|!=|<=|>=|<|>|===))
        (?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]*    # We just match everything, except for whitespace
                          # since we are only testing for strict identity.
            )
            |
            (?:
                # 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
                (?:                   # pre release
                    [-_\.]?
                    (a|b|c|rc|alpha|beta|pre|preview)
                    [-_\.]?
                    [0-9]*
                )?
                (?:                   # post release
                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
                )?

                # You cannot use a wild card and a dev or local version
                # together so group them with a | and make them optional.
                (?:
                    (?:[-_\.]?dev[-_\.]?[0-9]*)?         # dev release
                    (?:\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*)? # local
                    |
                    \.\*  # Wild card syntax of .*
                )?
            )
            |
            (?:
                # 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
                    [-_\.]?
                    (a|b|c|rc|alpha|beta|pre|preview)
                    [-_\.]?
                    [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
                    [-_\.]?
                    (a|b|c|rc|alpha|beta|pre|preview)
                    [-_\.]?
                    [0-9]*
                )?
                (?:                                   # post release
                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
                )?
                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
            )
        )
        z^\s*z\s*$
compatiblerS   rT   rU   rV   rW   rX   	arbitrary)z~=z==z!=z<=z>=rY   rZ   z===c             C   sN   d ttdd t|d d }|d7 }| d||oL| d||S )N.c             S   s   |  d o|  d S )Npostdev)
startswith)xr   r   r   <lambda>      z/Specifier._compare_compatible.<locals>.<lambda>z.*z>=z==)joinlist	itertools	takewhile_version_splitrG   )r   r_   r8   prefixr   r   r   _compare_compatible  s    
zSpecifier._compare_compatiblec       	      C   sz   | drVt|j}t|d d }tt|}|d t| }t||\}}||kS t|}|jsnt|j}||kS d S )Nz.*)endswithr   publicr   r<   len_pad_versionlocal)	r   r_   r8   
split_specsplit_prospectiveshortened_prospectivepadded_specpadded_prospectivespec_versionr   r   r   r`     s    


zSpecifier._compare_equalc             C   s   |  || S )N)r`   )r   r_   r8   r   r   r   ra      s    zSpecifier._compare_not_equalc             C   s   t |jt |kS )N)r   r   )r   r_   r8   r   r   r   rb     s    z"Specifier._compare_less_than_equalc             C   s   t |jt |kS )N)r   r   )r   r_   r8   r   r   r   rc     s    z%Specifier._compare_greater_than_equalc             C   s<   t |}||k sdS |js8|jr8t |jt |jkr8dS dS )NFT)r   rJ   base_version)r   r_   spec_strr8   r   r   r   rd     s    zSpecifier._compare_less_thanc             C   s^   t |}||ksdS |js8|jr8t |jt |jkr8dS |jd k	rZt |jt |jkrZdS dS )NFT)r   is_postreleaser   r   )r   r_   r   r8   r   r   r   re   2  s    
zSpecifier._compare_greater_thanc             C   s   t | t | kS )N)r<   lower)r   r_   r8   r   r   r   _compare_arbitraryS  s    zSpecifier._compare_arbitraryc             C   sR   | j d k	r| j S | j\}}|dkrN|dkr@|dr@|d d }t|jrNdS dS )N)z==z>=z<=z~=z===z==z.*r   TF)r7   r6   r   r   rJ   )r   r/   r0   r   r   r   r#   W  s    


zSpecifier.prereleasesc             C   s
   || _ d S )N)r7   )r   r$   r   r   r   r#   q  s    N)r   r   r   rf   rg   rh   ri   rj   r1   rD   rp   r   r`   ra   rb   rc   rd   re   r   rQ   r#   r,   r   r   r   r   rq   N  s(   ])		!rq   z^([0-9]+)((?:a|b|c|rc)[0-9]+)$c             C   sD   g }x:|  dD ],}t|}|r2||  q|| qW |S )Nrt   )split_prefix_regexr2   extendgroupsrL   )r0   resultr%   r9   r   r   r   r   z  s    
r   c          
   C   s   g g  }}| ttdd |  | ttdd | | | t|d d   | |t|d d   |ddgtdt|d t|d    |ddgtdt|d t|d    ttj| ttj| fS )Nc             S   s   |   S )N)isdigit)rx   r   r   r   ry     rz   z_pad_version.<locals>.<lambda>c             S   s   |   S )N)r   )rx   r   r   r   ry     rz   r   r   0)rL   r}   r~   r   r   insertmaxchain)leftright
left_splitright_splitr   r   r   r     s    
,,r   c               @   s   e Zd ZdddZdd Zdd Zd	d
 Zdd Zdd Zdd Z	dd Z
dd Zedd Zejdd Zdd ZdddZd ddZdS )!SpecifierSetr.   Nc          	   C   sr   dd | dD }t }xB|D ]:}y|t| W q  tk
rX   |t| Y q X q W t|| _|| _d S )Nc             S   s   g | ]}|  r|  qS r   )r5   ).0sr   r   r   
<listcomp>  s    z)SpecifierSet.__init__.<locals>.<listcomp>,)	r   setaddrq   r   rR   	frozenset_specsr7   )r   
specifiersr#   split_specifiersparsed	specifierr   r   r   r:     s    

zSpecifierSet.__init__c             C   s*   | j d k	rd| jnd}dt| |S )Nz, prereleases={0!r}r.   z<SpecifierSet({0!r}{1})>)r7   r3   r#   r<   )r   r=   r   r   r   r>     s    zSpecifierSet.__repr__c             C   s   d tdd | jD S )Nr   c             s   s   | ]}t |V  qd S )N)r<   )r   r   r   r   r   	<genexpr>  s    z'SpecifierSet.__str__.<locals>.<genexpr>)r|   sortedr   )r   r   r   r   r     s    zSpecifierSet.__str__c             C   s
   t | jS )N)r@   r   )r   r   r   r   r     s    zSpecifierSet.__hash__c             C   s   t |trt|}nt |ts"tS t }t| j|jB |_| jd krX|jd k	rX|j|_n<| jd k	rv|jd krv| j|_n| j|jkr| j|_ntd|S )NzFCannot combine SpecifierSets with True and False prerelease overrides.)rA   r   r   rB   r   r   r7   
ValueError)r   r    r   r   r   r   __and__  s    





zSpecifierSet.__and__c             C   s6   t |ttfrtt|}nt |ts*tS | j|jkS )N)rA   r   r-   r   r<   rB   r   )r   r    r   r   r   r!     s
    
zSpecifierSet.__eq__c             C   s6   t |ttfrtt|}nt |ts*tS | j|jkS )N)rA   r   r-   r   r<   rB   r   )r   r    r   r   r   r"     s
    
zSpecifierSet.__ne__c             C   s
   t | jS )N)r   r   )r   r   r   r   __len__  s    zSpecifierSet.__len__c             C   s
   t | jS )N)iterr   )r   r   r   r   __iter__  s    zSpecifierSet.__iter__c             C   s.   | j d k	r| j S | jsd S tdd | jD S )Nc             s   s   | ]}|j V  qd S )N)r#   )r   r   r   r   r   r     s    z+SpecifierSet.prereleases.<locals>.<genexpr>)r7   r   any)r   r   r   r   r#     s
    
zSpecifierSet.prereleasesc             C   s
   || _ d S )N)r7   )r   r$   r   r   r   r#     s    c             C   s
   |  |S )N)r&   )r   r%   r   r   r   rI     s    zSpecifierSet.__contains__c                sL   t  ttfst  d kr$| js2 jr2dS t fdd| jD S )NFc             3   s   | ]}|j  d V  qdS ))r#   N)r&   )r   r   )r%   r#   r   r   r   +  s    z(SpecifierSet.contains.<locals>.<genexpr>)rA   r
   r   r   r#   rJ   allr   )r   r%   r#   r   )r%   r#   r   r&     s    
zSpecifierSet.containsc             C   s   |d kr| j }| jr:x | jD ]}|j|t|d}qW |S g }g }xX|D ]P}t|ttfsdt|}n|}t|trtqH|jr|s|s|	| qH|	| qHW |s|r|d kr|S |S d S )N)r#   )
r#   r   r(   boolrA   r
   r   r   rJ   rL   )r   r'   r#   r8   filteredrN   r%   rP   r   r   r   r(   -  s*    




zSpecifierSet.filter)r.   N)N)N)r   r   r   r:   r>   r   r   r   r!   r"   r   r   rQ   r#   r,   rI   r&   r(   r   r   r   r   r     s   

		
r   )0
__future__r   r   r   r)   rn   r~   rg   r\   _compatr   r   _typingr   utilsr	   r0   r
   r   r   typingr   r   r   r   r   r   r   r   ZParsedVersionr<   ZUnparsedVersionr   ZCallableOperatorr   r   ABCMetaobjectr   r-   rR   rp   rq   rh   r   r   r   r   r   r   r   r   <module>   s6   (@  B  +
