File manager - Edit - /usr/local/CyberPanel/lib/python3.10/site-packages/jmespath/__pycache__/parser.cpython-310.pyc
Back
o �h�J � @ sp d Z ddlZddlmZ ddlmZ ddlmZ ddlmZ ddlmZ G dd � d e �Z eG d d � d e ��Z dS ) a� Top down operator precedence parser. This is an implementation of Vaughan R. Pratt's "Top Down Operator Precedence" parser. (http://dl.acm.org/citation.cfm?doid=512927.512931). These are some additional resources that help explain the general idea behind a Pratt parser: * http://effbot.org/zone/simple-top-down-parsing.htm * http://javascript.crockford.com/tdop/tdop.html A few notes on the implementation. * All the nud/led tokens are on the Parser class itself, and are dispatched using getattr(). This keeps all the parsing logic contained to a single class. * We use two passes through the data. One to create a list of token, then one pass through the tokens to create the AST. While the lexer actually yields tokens, we convert it to a list so we can easily implement two tokens of lookahead. A previous implementation used a fixed circular buffer, but it was significantly slower. Also, the average jmespath expression typically does not have a large amount of token so this is not an issue. And interestingly enough, creating a token list first is actually faster than consuming from the token iterator one token at a time. � N)�lexer)�with_repr_method)�ast)� exceptions)�visitorc @ sB e Zd Zi dd�dd�dd�dd�dd�dd�dd�d d�d d�d d�d d�d d�dd�dd�dd�dd�dd�dddddddddd d d d � �Zd Zi Zd!Zd�d"d#�Zd$d%� Zd&d'� Z d(d)� Z d�d*d+�Z d,d-� Z d.d/� Z d0d1� Zd2d3� Zd4d5� Zd6d7� Zd8d9� Zd:d;� Zd<d=� Zd>d?� Zd@dA� ZdBdC� ZdDdE� ZdFdG� ZdHdI� ZdJdK� ZdLdM� Z dNdO� Z dPdQ� Z dRdS� Z dTdU� Z dVdW� Z!dXdY� Z"dZd[� Z#d\d]� Z$d^d_� Z%d`da� Z&dbdc� Z'ddde� Z(dfdg� Z)dhdi� Z*djdk� Z+dldm� Z,dndo� Z-dpdq� Z.drds� Z/d�dudv�Z0dwdx� Z1dydz� Z2d{d|� Z3d}d~� Z4dd�� Z5d�d�� Z6d�d�� Z7d�d�� Z8e9d�d�� �Z:dtS )��Parser�eofr �unquoted_identifier�quoted_identifier�literal�rbracket�rparen�comma�rbrace�number�current�expref�colon�pipe� �or� �and� �eq� �gt� � � �( �- �2 �7 �< ) �lt�gte�lte�ne�flatten�star�filter�dot�not�lbrace�lbracket�lparen� � c C s" d | _ d g| | _|| _d| _d S �Nr )� tokenizer�_tokens� _buffer_size�_index)�self� lookahead� r: �E/usr/local/CyberPanel/lib/python3.10/site-packages/jmespath/parser.py�__init__N s zParser.__init__c C sH | j �|�}|d ur |S | �|�}|| j |< t| j �| jkr"| �� |S �N)�_CACHE�get� _do_parse�len� _MAX_SIZE�_free_cache_entries)r8 � expression�cached� parsed_resultr: r: r; �parseT s z Parser.parsec C st z| � |�W S tjy } z||_� d }~w tjy) } z|�|� � d }~w tjy9 } z||_� d }~ww r= )�_parser � LexerErrorrD �IncompleteExpressionError�set_expression� ParseError)r8 rD �er: r: r; r@ ^ s � ���zParser._do_parsec C sr t �� �|�| _t| j�| _d| _| jdd�}| �� dks4| � d�}t � |d |d |d d|d ��t ||�S )Nr )� binding_powerr �start�value�typezUnexpected token: %s) r �Lexer�tokenizer4 �listr5 r7 � _expression�_current_token�_lookahead_tokenr rL � ParsedResult)r8 rD �parsed�tr: r: r; rH k s � z Parser._parsec C s� | � d�}| �� t| d|d | j�}||�}| �� }|| j| k rMt| d| d �}|d u r:| � d�}| �|� n | �� ||�}| �� }|| j| k s#|S )Nr z _token_nud_%srQ z _token_led_%s)rW �_advance�getattr�_error_nud_tokenrV � BINDING_POWER�_error_led_token)r8 rN � left_token� nud_function�left� current_token�led� error_tokenr: r: r; rU v s$ � � zParser._expressionc C � t �|d �S �NrP )r r �r8 �tokenr: r: r; �_token_nud_literal� � zParser._token_nud_literalc C rf rg )r �fieldrh r: r: r; � _token_nud_unquoted_identifier� rk z%Parser._token_nud_unquoted_identifierc C s@ t �|d �}| �� dkr | �d�}t�d|d |d d��|S )NrP r0 r rQ z1Quoted identifier not allowed for function names.)r rl rV rW r rL )r8 ri rl rZ r: r: r; � _token_nud_quoted_identifier� s �z#Parser._token_nud_quoted_identifierc C s: t �� }| �� dkrt �� }n| �| jd �}t �||�S )Nr r* )r �identityrV �_parse_projection_rhsr^ �value_projection�r8 ri rb �rightr: r: r; �_token_nud_star� s zParser._token_nud_starc C s | � t�� �S r= )�_token_led_filterr ro rh r: r: r; �_token_nud_filter� rk zParser._token_nud_filterc C s | � � S r= )�_parse_multi_select_hashrh r: r: r; �_token_nud_lbrace� � zParser._token_nud_lbracec C s | � � }| �d� |S )Nr )rU �_match�r8 ri rD r: r: r; �_token_nud_lparen� s zParser._token_nud_lparenc C s* t �t �� �}| �| jd �}t �||�S �Nr) )r r) ro rp r^ � projectionrr r: r: r; �_token_nud_flatten� s � zParser._token_nud_flattenc C � | � | jd �}t�|�S )Nr- )rU r^ r �not_expression)r8 ri �exprr: r: r; �_token_nud_not� � zParser._token_nud_notc C sv | � � dv r| �� }| �t�� |�S | � � dkr7| �d�dkr7| �� | �� | �| jd �}t� t�� |�S | � � S )N�r r r* r r ) rV �_parse_index_expression�_project_if_slicer ro � _lookaheadr[ rp r^ r~ �_parse_multi_select_list)r8 ri rs r: r: r; �_token_nud_lbracket� s zParser._token_nud_lbracketc C sN | � d�dks| � d�dkr| �� S t�| �d�d �}| �� | �d� |S )Nr r r rP r )r� �_parse_slice_expressionr �indexrW r[ rz )r8 �noder: r: r; r� � s z Parser._parse_index_expressionc C s� g d�}d}| � � }|dksS|dk rS|dkr,|d7 }|dkr'| �| �d�d� | �� n|dkr>| �d�d ||< | �� n | �| �d�d� | � � }|dksS|dk s| �d� tj|� S ) N)NNNr r r r r � syntax errorr rP )rV � _raise_parse_error_for_tokenrW r[ rz r �slice)r8 �partsr� rc r: r: r; r� � s* � �� z Parser._parse_slice_expressionc C s t �� S r= )r � current_noderh r: r: r; �_token_nud_current� ry zParser._token_nud_currentc C r� )Nr )rU r^ r r r{ r: r: r; �_token_nud_expref� r� zParser._token_nud_exprefc C sl | � � dks$| �| jd �}|d dkr |d �|� |S t�||g�S | �� | �| jd �}t�||�S )Nr* r, rQ � subexpression�children) rV �_parse_dot_rhsr^ �appendr r� r[ rp rq �r8 rb rs r: r: r; �_token_led_dot� s � zParser._token_led_dotc C � | � | jd �}t�||�S )Nr )rU r^ r r r� r: r: r; �_token_led_pipe � zParser._token_led_pipec C r� )Nr )rU r^ r � or_expressionr� r: r: r; � _token_led_or r� zParser._token_led_orc C r� )Nr )rU r^ r �and_expressionr� r: r: r; �_token_led_and r� zParser._token_led_andc C s� |d dkr | � d�}t�|d |d |d d|d ��|d }g }| �� dksC| �� }| �� dkr8| �d� |�|� | �� dkr)| �d� t�||�}|S ) NrQ rl ���rO rP zInvalid function name '%s'r r ) rW r rL rV rU rz r� r �function_expression)r8 rb �prev_t�name�argsrD � function_noder: r: r; �_token_led_lparen s" � � zParser._token_led_lparenc C sH | � d�}| �d� | �� dkrt�� }n| �| jd �}t�|||�S )Nr r r) r+ )rU rz rV r ro rp r^ �filter_projection)r8 rb � conditionrs r: r: r; ru % s zParser._token_led_filterc C � | � |d�S )Nr ��_parse_comparator�r8 rb r: r: r; � _token_led_eq/ � zParser._token_led_eqc C r� )Nr( r� r� r: r: r; � _token_led_ne2 r� zParser._token_led_nec C r� )Nr r� r� r: r: r; � _token_led_gt5 r� zParser._token_led_gtc C r� )Nr& r� r� r: r: r; �_token_led_gte8 r� zParser._token_led_gtec C r� )Nr% r� r� r: r: r; � _token_led_lt; r� zParser._token_led_ltc C r� )Nr' r� r� r: r: r; �_token_led_lte> r� zParser._token_led_ltec C s& t �|�}| �| jd �}t �||�S r} )r r) rp r^ r~ r� r: r: r; �_token_led_flattenA s � zParser._token_led_flattenc C sx | � d�}|d dv r$| �� }|d dkr |d �|� |S | �||�S | �d� | �d� | �| jd �}t�||�S )Nr rQ r� �index_expressionr� r* r ) rW r� r� r� rz rp r^ r r~ )r8 rb ri rs r: r: r; �_token_led_lbracketG s zParser._token_led_lbracketc C s6 t �||g�}|d dkrt �|| �| jd ��S |S )NrQ r� r* )r r� r~ rp r^ )r8 rb rs � index_exprr: r: r; r� Z s �zParser._project_if_slicec C s | � | j| �}t�|||�S r= )rU r^ r � comparator)r8 rb r� rs r: r: r; r� c s zParser._parse_comparatorc C sF g } | � � }|�|� | �� dkrn| �d� q| �d� t�|�S )NTr r )rU r� rV rz r �multi_select_list)r8 � expressionsrD r: r: r; r� g s � z Parser._parse_multi_select_listc C s� g } | � d�}| jddgd� |d }| �d� | �d�}tj||d�}|�|� | �� d kr6| �d � n | �� d krB| �d � nqtj|d �S ) NTr r r )� token_typesrP r )�key_namer� r r )�nodes) rW �_match_multiple_tokensrz rU r � key_val_pairr� rV �multi_select_dict)r8 �pairs� key_tokenr� rP r� r: r: r; rw s s$ � � z Parser._parse_multi_select_hashc C s� | j | �� | jk rt�� }|S | �� dkr | �|�}|S | �� dkr*| �|�}|S | �� dkr<| �d� | �|�}|S | �| � d�d� |S )Nr/ r+ r, r r� ) r^ rV �_PROJECTION_STOPr ro rU rz r� r� rW )r8 rN rs r: r: r; rp � s" � � � ��z Parser._parse_projection_rhsc C s� | � � }|dv r | �|�S |dkr| �d� | �� S |dkr'| �d� | �� S | �d�}g d�}d||d f }| �||� d S )N)r r r* r/ r. r )r r r/ r. �Expecting: %s, got: %srQ )rV rU rz r� rw rW r� )r8 rN r9 rZ �allowed�msgr: r: r; r� � s �zParser._parse_dot_rhsc C s6 |d dkrt �|d |d |d ��| �|d� d S )NrQ r rO rP � invalid token)r rJ r� rh r: r: r; r] � s �zParser._error_nud_tokenc C s | � |d� d S )Nr� )r� rh r: r: r; r_ � � zParser._error_led_tokenNc C s. | � � |kr | �� d S | �|| �d�� d S r3 )rV r[ � _raise_parse_error_maybe_eofrW )r8 � token_typer: r: r; rz � s �z Parser._matchc C s* | � � |vr| �|| �d�� | �� d S r3 )rV r� rW r[ )r8 r� r: r: r; r� � s � z Parser._match_multiple_tokensc C s | j d7 _ d S )Nr )r7 �r8 r: r: r; r[ � s zParser._advancec C s | j | j d S �NrQ �r5 r7 r� r: r: r; rV � r� zParser._current_tokenc C s | j | j| d S r� r� �r8 r r: r: r; r� � s zParser._lookaheadc C s | j | j| S r= r� r� r: r: r; rW � r� zParser._lookahead_tokenc C s( |d }|d }|d }t �||||��)NrO rP rQ )r rL )r8 ri �reason� lex_position� actual_value� actual_typer: r: r; r� � s �z#Parser._raise_parse_error_for_tokenc C sJ |d }|d }|d }|dkrt �|||��d||f }t �||||��)NrO rP rQ r r� )r rJ rL )r8 � expected_typeri r� r� r� �messager: r: r; r� � s ���z#Parser._raise_parse_error_maybe_eofc C s8 t �t| j�� �t| jd ��D ] }| j�|d � qd S )Nr )�random�samplerT r> �keys�intrB �pop)r8 �keyr: r: r; rC � s $�zParser._free_cache_entriesc C s | j �� dS )z'Clear the expression compilation cache.N)r> �clear)�clsr: r: r; �purge� s z Parser.purge)r )r r= );�__name__� __module__� __qualname__r^ r� r> rB r< rG r@ rH rU rj rm rn rt rv rx r| r r� r� r� r� r� r� r� r� r� r� r� ru r� r� r� r� r� r� r� r� r� r� r� rw rp r� r] r_ rz r� r[ rV r� rW r� r� rC � classmethodr� r: r: r: r; r % s� �������� � � � � ������" r c @ s. e Zd Zdd� Zd dd�Zdd� Zdd � ZdS ) rX c C s || _ || _d S r= )rD rY )r8 rD rY r: r: r; r< � s zParsedResult.__init__Nc C s t �|�}|�| j|�}|S r= )r �TreeInterpreter�visitrY )r8 rP �options� interpreter�resultr: r: r; �search� s zParsedResult.searchc C s t �� }|�| j�}|S )af Render the parsed AST as a dot file. Note that this is marked as an internal method because the AST is an implementation detail and is subject to change. This method can be used to help troubleshoot or for development purposes, but is not considered part of the public supported API. Use at your own risk. )r �GraphvizVisitorr� rY )r8 �renderer�contentsr: r: r; �_render_dot_file s z ParsedResult._render_dot_filec C s t | j�S r= )�reprrY r� r: r: r; �__repr__ s zParsedResult.__repr__r= )r� r� r� r< r� r� r� r: r: r: r; rX � s rX ) �__doc__r� �jmespathr �jmespath.compatr r r r �objectr rX r: r: r: r; �<module> s S
| ver. 1.4 |
Github
|
.
| PHP 8.2.28 | Generation time: 0.02 |
proxy
|
phpinfo
|
Settings