o
    Éó·i»  ã                   @  sn   d dl mZ d dlZd dlmZmZ ddlmZmZ g d¢Z	e 
d¡ZedeƒZG d	d
„ d
eƒZddd„ZdS )é    )ÚannotationsN)ÚNewTypeÚcasté   )Ú
EXCEPTIONSÚLICENSES)ÚInvalidLicenseExpressionÚNormalizedLicenseExpressionÚcanonicalize_license_expressionz^[A-Za-z0-9.-]*$r	   c                   @  s   e Zd ZdZdS )r   zõRaised when a license-expression string is invalid

    >>> canonicalize_license_expression("invalid")
    Traceback (most recent call last):
        ...
    packaging.licenses.InvalidLicenseExpression: Invalid license expression: 'invalid'
    N)Ú__name__Ú
__module__Ú__qualname__Ú__doc__© r   r   úaC:\Users\psant\Downloads\PAF backend\school\venv\Lib\site-packages\packaging/licenses/__init__.pyr   2   s    r   Úraw_license_expressionÚstrÚreturnc                   s*  | sd| ›�}t |ƒ‚|  dd¡ dd¡}d‰ ‡ fdd„| ¡ D ƒ}| ¡ }| ¡ }g }|D ]<}|d	vr:| d
¡ q.|dkrD| d¡ q.|dkrP|rP|d dvs\|dkre|re|d dkred| ›�}t |ƒ‚| |¡ q.d |¡}zt|ddƒ W n ty‰   d| ›�}t |ƒd ‚w g }|D ]t}|d	v rœ| | ¡ ¡ qŽ|r»|d dkr»|t	vr±d|›�}t |ƒ‚| t	| d ¡ qŽ| 
d¡rÉ|d d… }	d}
n|}	d}
|	 d¡rêt |	¡sàd|	›�}t |ƒ‚| ||	 |
 ¡ qŽ|	tvr÷d|	›�}t |ƒ‚| t|	 d |
 ¡ qŽd |¡}td| dd¡ dd¡ƒS )NzInvalid license expression: ú(z ( ú)z ) úLicenseRef-c                   s8   i | ]}|  ¡  ˆ   ¡ ¡r|  ¡ d |tˆ ƒd…  “qS )r   N)ÚlowerÚ
startswithÚlen)Ú.0Úref©Zlicenseref_prefixr   r   Ú
<dictcomp>G   s    ýÿz3canonicalize_license_expression.<locals>.<dictcomp>>   r   Úorr   ÚwithÚandÚFalser   r   éÿÿÿÿ>   r   r   r    ú Ú ÚevalZWITHzUnknown license exception: Úidú+zlicenseref-zInvalid licenseref: zUnknown license: r	   z( z ))r   ÚreplaceÚsplitr   ÚappendÚjoinÚcompileÚSyntaxErrorÚupperr   Úendswithr   Úlicense_ref_allowedÚmatchr   r   )r   ÚmessageZlicense_expressionZlicense_refsÚtokensZpython_tokensÚtokenZpython_expressionZnormalized_tokensZfinal_tokenÚsuffixZnormalized_expressionr   r   r   r
   <   s†   
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þÿþ
ýüü
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
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þ

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þr
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ValueErrorr   r
   r   r   r   r   Ú<module>   s   
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
