관리-도구
편집 파일: _parser.cpython-38.pyc
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The docstring for each __parse_* function contains EBNF-inspired grammar representing the implementation. � N)�Any�List� NamedTuple�Optional�Tuple�Union� )� DEFAULT_RULES� Tokenizerc @ sF e Zd Zedd�dd�Zed�dd�Zed�dd �Zed�d d �ZdS ) �NodeN)�value�returnc C s || _ d S �N�r )�selfr � r �N/opt/hc_python/lib/python3.8/site-packages/wheel/vendored/packaging/_parser.py�__init__ s z Node.__init__�r c C s | j S r r �r r r r �__str__ s z Node.__str__c C s d| j j� d| � d�S )N�<z('z')>)� __class__�__name__r r r r �__repr__ s z Node.__repr__c C s t �d S r )�NotImplementedErrorr r r r � serialize s zNode.serialize)r � __module__� __qualname__�strr r r r r r r r r s r c @ s e Zd Zed�dd�ZdS )�Variabler c C s t | �S r �r r r r r r s zVariable.serializeN�r r r r r r r r r r s r c @ s e Zd Zed�dd�ZdS )�Valuer c C s d| � d�S )N�"r r r r r r ! s zValue.serializeNr" r r r r r# s r# c @ s e Zd Zed�dd�ZdS )�Opr c C s t | �S r r! r r r r r & s z Op.serializeNr" r r r r r% % s r% c @ s> e Zd ZU eed< eed< ee ed< eed< ee ed< dS )�ParsedRequirement�name�url�extras� specifier�markerN)r r r r �__annotations__r r � MarkerListr r r r r& 4 s r& )�sourcer c C s t t| td��S �N)�rules)�_parse_requirementr r �r. r r r �parse_requirement? s r3 )� tokenizerr c C sf | � d� | jddd�}|j}| � d� t| �}| � d� t| �\}}}| jddd� t|||||�S )zI requirement = WS? IDENTIFIER WS? extras WS? requirement_details �WS� IDENTIFIERz1package name at the start of dependency specifier��expected�ENDzend of dependency specifier)�consume�expect�text� _parse_extras�_parse_requirement_detailsr& )r4 � name_tokenr' r) r( r* r+ r r r r1 C s � r1 c C s� d}d}d}| � d�r�| �� | �d� | j}| jddd�j}| j dd d �rV|||fS | jdd d� | j dd d �r||||fS t| |d d �}nF| j}t| �}| �d� | j dd d �r�|||fS t| ||r�dndd �}|||fS )z~ requirement_details = AT URL (WS requirement_marker?)? | specifier WS? (requirement_marker)? � N�ATr5 �URLz URL after @r7 r9 T��peekzwhitespace after URLzURL and whitespace)� span_start�after�version specifierz#name and no valid version specifier)�check�readr: �positionr; r< �_parse_requirement_marker�_parse_specifier)r4 r* r( r+ � url_start�specifier_startr r r r> X s> � �� r> )r4 rE rF r c C s> | � d�s | jd|� d�|d� | �� t| �}| �d� |S )z3 requirement_marker = SEMICOLON marker WS? � SEMICOLONz!Expected end or semicolon (after �))rE r5 )rH �raise_syntax_errorrI � _parse_markerr: )r4 rE rF r+ r r r rK � s � rK c C sN | j ddd�sg S | jdddd��" | �d� t| �}| �d� W 5 Q R X |S )zG extras = (LEFT_BRACKET wsp* extras_list? wsp* RIGHT_BRACKET)? � LEFT_BRACKETTrC � RIGHT_BRACKETr) ��aroundr5 )rH �enclosing_tokensr: �_parse_extras_list)r4 r) r r r r= � s � r= c C s� g }| � d�s|S |�| �� j� | �d� | j ddd�rF| �d� n | � d�sRq�| �� | �d� | jddd�}|�|j� q"|S ) z> extras_list = identifier (wsp* ',' wsp* identifier)* r6 r5 TrC z"Expected comma between extra names�COMMAzextra name after commar7 )rH �appendrI r< r: rQ r; )r4 r) � extra_tokenr r r rX � s rX c C s< | j dddd��" | �d� t| �}| �d� W 5 Q R X |S )zr specifier = LEFT_PARENTHESIS WS? version_many WS? RIGHT_PARENTHESIS | WS? version_many WS? �LEFT_PARENTHESIS�RIGHT_PARENTHESISrG rU r5 )rW r: �_parse_version_many)r4 �parsed_specifiersr r r rL � s � rL c C s� d}| � d�r�| j}|| �� j7 }| j ddd�rF| jd|| jd d� | j d dd�rf| jd || jd� | �d � | � d �s|q�|| �� j7 }| �d � q|S ) z@ version_many = (SPECIFIER (WS? COMMA WS? SPECIFIER)*)? r@ � SPECIFIER�VERSION_PREFIX_TRAILTrC z6.* suffix can only be used with `==` or `!=` operatorsr )rE �span_end�VERSION_LOCAL_LABEL_TRAILz@Local version label can only be used with `==` or `!=` operatorsr5 rY )rH rJ rI r< rQ r: )r4 r_ rE r r r r^ � s, �� r^ c C s t t| td��S r/ )�_parse_full_markerr r r2 r r r � parse_marker� s re c C s t | �}| jddd� |S )Nr9 zend of marker expressionr7 )rR r; )r4 �retvalr r r rd s rd c C s: t | �g}| �d�r6| �� }t | �}|�|j|f� q |S )z4 marker = marker_atom (BOOLOP marker_atom)+ �BOOLOP)�_parse_marker_atomrH rI �extendr< )r4 � expression�token� expr_rightr r r rR s rR c C sh | � d� | jddd�rR| jdddd��" | � d� t| �}| � d� W 5 Q R X nt| �}| � d� |S )zw marker_atom = WS? LEFT_PARENTHESIS WS? marker WS? RIGHT_PARENTHESIS WS? | WS? marker_item WS? r5 r\ TrC r] zmarker expressionrU )r: rH rW rR �_parse_marker_item)r4 r+ r r r rh s � rh c C sJ | � d� t| �}| � d� t| �}| � d� t| �}| � d� |||fS )zG marker_item = WS? marker_var WS? marker_op WS? marker_var WS? r5 )r: �_parse_marker_var�_parse_marker_op)r4 �marker_var_left� marker_op�marker_var_rightr r r rm * s rm c C sH | � d�r t| �� j�dd��S | � d�r8t| �� j�S | jdd� dS )z/ marker_var = VARIABLE | QUOTED_STRING �VARIABLE�.�_� QUOTED_STRINGz+Expected a marker variable or quoted string)�messageN)rH �process_env_varrI r< �replace�process_python_strrQ �r4 r r r rn 8 s �rn )�env_varr c C s | dkrt d�S t | �S d S )N)� platform_python_implementation�python_implementationr} )r )r| r r r rx F s rx )� python_strr c C s t �| �}tt|��S r )�ast� literal_evalr# r )r r r r r rz M s rz c C sv | � d�r| �� td�S | � d�rP| �� | jddd� | jddd� td�S | � d �rht| �� j�S | �d �S d S ) z& marker_op = IN | NOT IN | OP �IN�in�NOTr5 zwhitespace after 'not'r7 z'in' after 'not'znot in�OPzJExpected marker operator, one of <=, <, !=, ==, >=, >, ~=, ===, in, not inN)rH rI r% r; r< rQ r{ r r r ro R s �ro )(�__doc__r� �typingr r r r r r � _tokenizerr r r r r# r% � MarkerVar� MarkerItem� MarkerAtomr- r& r r3 r1 r> �intrK r= rX rL r^ re rd rR rh rm rn rx rz ro r r r r �<module> sF � 4 �