o
    g¹«jÅ  ã                   @  s˜  U d dl mZ d dlZd dlZd dlmZ d dlmZmZ ddl	m
Z
 er-d dlmZmZ eG dd	„ d	ƒƒZG d
d„ deƒZi de d¡“de d¡“de d¡“de d¡“de d¡“de d¡“de dej¡“de d¡“de d¡“de d¡“d e d!¡“d"e d#ej¡“d$e e
jejejB ¡“d%e d&¡“d'e d(¡“d)e d*¡“d+e d,¡“e d-¡e d.¡e d/¡d0œ¥Zd1ed2< G d3d4„ d4ƒZdS )5é    )ÚannotationsN)Ú	dataclass)ÚTYPE_CHECKINGÚNoReturné   )Ú	Specifier)Ú	GeneratorÚMappingc                   @  s*   e Zd ZU dZded< ded< ded< dS )ÚToken)ÚnameÚpositionÚtextÚstrr   r   Úintr   N)Ú__name__Ú
__module__Ú__qualname__Ú	__slots__Ú__annotations__© r   r   úT/var/www/html/laksyashrimp/venv/lib/python3.10/site-packages/packaging/_tokenizer.pyr
      s
   
 r
   c                      s,   e Zd ZdZd‡ fd	d
„Zddd„Z‡  ZS )ÚParserSyntaxErrorz7The provided source text could not be parsed correctly.Úmessager   ÚsourceÚspanútuple[int, int]ÚreturnÚNonec                  s    || _ || _|| _tƒ  ¡  d S )N)r   r   r   ÚsuperÚ__init__)Úselfr   r   r   ©Ú	__class__r   r   r      s   zParserSyntaxError.__init__c                 C  sB   d| j d  d| j d | j d    d }| j› d| j› d|› �S )Nú r   ú~r   ú^z
    )r   r   r   )r    Úmarkerr   r   r   Ú__str__'   s   *zParserSyntaxError.__str__)r   r   r   r   r   r   r   r   )r   r   )r   r   r   Ú__doc__r   r'   Ú__classcell__r   r   r!   r   r      s    r   ÚLEFT_PARENTHESISz\(ÚRIGHT_PARENTHESISz\)ÚLEFT_BRACKETz\[ÚRIGHT_BRACKETz\]Ú	SEMICOLONú;ÚCOMMAú,ÚQUOTED_STRINGzk
            (
                ('[^']*')
                |
                ("[^"]*")
            )
        ÚOPz(===|==|~=|!=|<=|>=|<|>)ÚBOOLOPz\b(or|and)\bÚINz\bin\bÚNOTz\bnot\bÚVARIABLEa¬  
            \b(
                python_version
                |python_full_version
                |os[._]name
                |sys[._]platform
                |platform_(release|system)
                |platform[._](version|machine|python_implementation)
                |python_implementation
                |implementation_(name|version)
                |extras?
                |dependency_groups
            )\b
        Ú	SPECIFIERÚATz\@ÚURLz[^ \t]+Ú
IDENTIFIERz\b[a-zA-Z0-9][a-zA-Z0-9._-]*\bÚVERSION_PREFIX_TRAILz\.\*z\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*z[ \t]+z\Z)ÚVERSION_LOCAL_LABEL_TRAILÚWSÚENDzdict[str, re.Pattern[str]]ÚDEFAULT_RULESc                   @  sn   e Zd ZdZdZd)d	d
„Zd*dd„Zddœd+dd„Zd,dd„Zd-dd„Z	dddœd.d!d"„Z
ejd/d'd(„ƒZdS )0Ú	Tokenizerz„Context-sensitive token parsing.

    Provides methods to examine the input stream to check whether the next token
    matches.
    )Ú
next_tokenr   Úrulesr   r   r   rC   úMapping[str, re.Pattern[str]]r   r   c                C  s   || _ || _d | _d| _d S )Nr   )r   rC   rB   r   )r    r   rC   r   r   r   r   i   s   
zTokenizer.__init__r   c                 C  s   |   |¡r|  ¡  dS dS )z8Move beyond provided token name, if at current position.N)ÚcheckÚread)r    r   r   r   r   Úconsumet   s   
ÿzTokenizer.consumeF)ÚpeekrH   Úboolc                C  sz   | j du sJ d|›d| j ›�ƒ‚|| jv sJ d|›�ƒ‚| j| }| | j| j¡}|du r/dS |s;t||d | jƒ| _ dS )zÿCheck whether the next token has the provided name.

        By default, if the check succeeds, the token *must* be read before
        another check. If `peek` is set to `True`, the token is not loaded and
        would need to be checked again.
        NzCannot check for z, already have zUnknown token name: Fr   T)rB   rC   Úmatchr   r   r
   )r    r   rH   Ú
expressionrJ   r   r   r   rE   y   s   ÿ
zTokenizer.checkÚexpectedr
   c                C  s"   |   |¡s|  d|› �¡‚|  ¡ S )zzExpect a certain token name next, failing with a syntax error otherwise.

        The token is read and returned.
        z	Expected )rE   Úraise_syntax_errorrF   )r    r   rL   r   r   r   ÚexpectŽ   s   
zTokenizer.expectc                 C  s0   | j }|dus	J ‚|  jt|jƒ7  _d| _ |S )z%Consume the next token and return it.N)rB   r   Úlenr   )r    Útokenr   r   r   rF   —   s
   zTokenizer.readN)Ú
span_startÚspan_endr   rQ   ú
int | NonerR   r   c                C  s4   |du r| j n||du r| j n|f}t|| j|d�‚)z.Raise ParserSyntaxError at the given position.N)r   r   )r   r   r   )r    r   rQ   rR   r   r   r   r   rM   ¡   s   	þýzTokenizer.raise_syntax_errorÚ
open_tokenÚclose_tokenÚaroundúGenerator[None, None, None]c                c  sh   � |   |¡r| j}|  ¡  nd }d V  |d u rd S |   |¡s.| jd|› d|› d|› �|d� |  ¡  d S )NzExpected matching z for z, after )rQ   )rE   r   rF   rM   )r    rT   rU   rV   Úopen_positionr   r   r   Úenclosing_tokens³   s   €


þzTokenizer.enclosing_tokens)r   r   rC   rD   r   r   )r   r   r   r   )r   r   rH   rI   r   rI   )r   r   rL   r   r   r
   )r   r
   )r   r   rQ   rS   rR   rS   r   r   )rT   r   rU   r   rV   r   r   rW   )r   r   r   r(   r   r   rG   rE   rN   rF   rM   Ú
contextlibÚcontextmanagerrY   r   r   r   r   rA   `   s    



	ûrA   )Ú
__future__r   rZ   ÚreÚdataclassesr   Útypingr   r   Ú
specifiersr   Úcollections.abcr   r	   r
   Ú	Exceptionr   ÚcompileÚVERBOSEÚ_specifier_regex_strÚ
IGNORECASEr@   r   rA   r   r   r   r   Ú<module>   sx    
ÿ
þ
ý
ü
û
úøù
ï
î
í
ìñë&
þÚ
*Ö
+Õ
,Ô
-Ó.Ð4