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ddddddddddg �Zeddddd d g�Zejejej ej ej ej d �Z ej!e"ej#ej$ f e%d < G d d!� d!�Z&dS )"z8Parse tokens from the lexer into nodes for the compiler.� N� )�nodes)�TemplateAssertionError)�TemplateSyntaxError)�describe_token)�describe_token_expr)� Environment�_ImportInclude�
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ed f ej ej d~�dd��Z\ej]d�d�d��Z^dS )��Parserz�This is the central parsing class Jinja uses. It's passed to
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Nr )� environment�source�name�filename�state�returnc C st || _ |�||||�| _|| _|| _d| _i | _x,|�� D ] }x|jD ]}|j | j|< qFW q:W d| _
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_tag_stack�_end_token_stack)�selfr" r# r$ r% r& � extension�tag� r3 �>/opt/alt/python37/lib/python3.7/site-packages/jinja2/parser.py�__init__3 s zParser.__init__z te.NoReturn)�msg�lineno�excr' c C s( |dkr| j jj}|||| j| j��dS )z�Convenience method that raises `exc` with the message, passed
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z Parser.fail.)r$ �end_token_stackr7 r' c C s� t � }x |D ]}|�tt|�� q W |rDd�tttt|d ���}nd }|d krXdg}nd|�d�g}|r�|d k r�||kr�|�d|� d�� n|�d|� d�� | jr�|�d| jd �d�� | �d �|�|� d S )
Nz or ���zUnexpected end of template.zEncountered unknown tag �.z\You probably made a nesting mistake. Jinja is expecting this tag, but currently looking for z*Jinja was looking for the following tags: z/The innermost block that needs to be closed is � ) r �update�mapr �join�repr�appendr. r: )r0 r$ r; r7 Zexpected�exprsZcurrently_looking�messager3 r3 r4 � _fail_ut_eofX s(
zParser._fail_ut_eof)r$ r7 r' c C s | � || j|� dS )z�Called if the parser encounters an unknown tag. Tries to fail
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N)rF r/ )r0 r$ r7 r3 r3 r4 �fail_unknown_tag� s zParser.fail_unknown_tag)�
end_tokensr7 r' c C s. t | j�}|dk r |�|� | �d||� dS )z9Like fail_unknown_tag but for end of template situations.N)�listr/ rC rF )r0 rH r7 �stackr3 r3 r4 �fail_eof� s
zParser.fail_eof)�extra_end_rulesr' c C s, | j jjdkrdS |dk r(| j j�|�S dS )z Are we at the end of a tuple?)� variable_end� block_end�rparenTNF)r) r9 �type�test_any)r0 rL r3 r3 r4 � is_tuple_end� s
zParser.is_tuple_end)r7 r' c C s8 | j d7 _ t�tj�}tjj|d| j � �|d� |S )zDReturn a new free identifier as :class:`~jinja2.nodes.InternalName`.r �fi)r7 )r- �object�__new__r � InternalName�Noder5 )r0 r7 �rvr3 r3 r4 �free_identifier� s zParser.free_identifier)r' c C s� | j j}|jdkr | �d|j� | j�|j� d}z�|jtkrZt | d| j jj� ��}|� S |jdkrl| �
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|j�}|dk r�|| �S | j�� d}| �|j|j� W d|r�| j�� X dS ) zParse a single statement.r$ ztag name expectedTZparse_�call�filterNF)r) r9 rP r: r7 r. rC �value�_statement_keywords�getattr�parse_call_block�parse_filter_blockr+ �get�poprG )r0 �tokenZpop_tag�f�extr3 r3 r4 �parse_statement� s*
zParser.parse_statementF)rH � drop_needler' c C sL | j �d� | j �d� | �|�}| j jjdkr:| �|� |rHt| j � |S )aR Parse multiple statements into a list until one of the end tokens
is reached. This is used to parse the body of statements as it also
parses template data if appropriate. The parser checks first if the
current token is a colon and skips it if there is one. Then it checks
for the block end and parses until if one of the `end_tokens` is
reached. Per default the active token in the stream at the end of
the call is the matched end token. If this is not wanted `drop_needle`
can be set to `True` and the end token is removed.
�colonrN �eof)r) �skip_if�expect�subparser9 rP rK �next)r0 rH rg �resultr3 r3 r4 �parse_statements� s
zParser.parse_statementsc C sf t | j�j}| jdd�}| j�d�r<| �� }tj|||d�S | �d�}| j ddd�}tj
||||d�S )zParse an assign statement.T)�with_namespace�assign)r7 N)z name:endset)rg ) rm r) r7 �parse_assign_targetrj � parse_tupler �Assign� parse_filterro � AssignBlock)r0 r7 �target�exprZ filter_node�bodyr3 r3 r4 � parse_set� s
zParser.parse_setc C s� | j �d�j}| jdd�}| j �d� | jddd�}d}| j �d �rL| �� }| j �d
�}| �d �}t| j �j d krxg }n| jd
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j |||||||d�S )zParse a for loop.zname:for)zname:in)rL zname:inF)zname:recursive)�
with_condexprrL Nzname:ifzname:recursive)z name:endforz name:elseZendfor)z name:endforT)rg )r7 ) r) rk r7 rr rs rj �parse_expressionro rm r\ r �For)r0 r7 rw �iter�test� recursivery �else_r3 r3 r4 � parse_for� s
zParser.parse_forc C s� t j| j�d�jd� }}x|| jdd�|_| �d�|_g |_ g |_
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P q W |S ) zParse an if construct.zname:if)r7 F)r{ )z name:elifz name:elsez
name:endifz name:elifz name:else)z
name:endifT)rg )r �Ifr) rk r7 rs r ro ry Zelif_r� rm r9 rC )r0 �nodern rc r3 r3 r4 �parse_if� s
zParser.parse_ifc C s� t jt| j�jd�}g }g }xX| jjjdkrt|r<| j�d� | �� }|� d� |�
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| jddd�|_|S ) N)r7 rN �comma�paramrq )z name:endwithT)rg )r �Withrm r) r7 r9 rP rk rr �set_ctxrC r| �targets�valuesro ry )r0 r� r� r� rw r3 r3 r4 �
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zParser.parse_withc C sD t jt| j�jd�}t �d| �� �g|_| jddd�|_ t �
|g�S )N)r7 r )zname:endautoescapeT)rg ) r ZScopedEvalContextModifierrm r) r7 �Keywordr| �optionsro ry �Scope)r0 r� r3 r3 r4 �parse_autoescape s zParser.parse_autoescapec C s� t jt| j�jd�}| j�d�j|_| j�d�|_ | j�d�|_
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name:requiredr zpBlock names in Jinja have to be valid Python identifiers and may not contain hyphens, use an underscore instead.)z
name:endblockT)rg c s s0 | ](}|j D ] }t|t j�o$|j�� V q qd S )N)r �
isinstance� TemplateData�data�isspace)�.0ry �childr3 r3 r4 � <genexpr>; s z%Parser.parse_block.<locals>.<genexpr>z7Required blocks can only contain comments or whitespacezname:)r �Blockrm r) r7 rk r\ r$ rj Zscoped�requiredr9 rP r: ro ry �all)r0 r� r3 r3 r4 � parse_block& s
zParser.parse_blockc C s" t jt| j�jd�}| �� |_|S )N)r7 )r �Extendsrm r) r7 r| �template)r0 r� r3 r3 r4 �
parse_extendsD s
zParser.parse_extends)r� �defaultr' c C sH | j j�dd�r>| j �� �d�r>t| j �jdk|_| j �� n||_|S )Nz name:withz name:withoutz name:contextr ) r) r9 rQ �lookr rm r\ � with_context�skip)r0 r� r� r3 r3 r4 �parse_import_contextI s zParser.parse_import_contextc C sb t jt| j�jd�}| �� |_| jj�d�rP| j� � �d�rPd|_
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r �Includerm r) r7 r| r� r9 r r� Zignore_missingr� r� )r0 r� r3 r3 r4 �
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zParser.parse_includec C sF t jt| j�jd�}| �� |_| j�d� | jdd�j |_
| � |d�S )N)r7 zname:asT)� name_onlyF) r �Importrm r) r7 r| r� rk rr r$ rw r� )r0 r� r3 r3 r4 � parse_importa s
zParser.parse_importc s t jt�j�jd�� ��� � _�j�d� g � _t d�� �fdd� }x�� jrX�j�d� �jj
j dkr�|� rnP �j dd �}|j
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z(Parser.parse_from.<locals>.parse_contextr� r$ T)r� �_z4names starting with an underline can not be imported)r8 zname:asr� F)r �
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zParser.parse_from)r� r' c C s� g }|_ g }|_| j�d� xl| jjjdkr�|r@| j�d� | jdd�}|�d� | j�d�rr|� | �
� � n|r�| � d� |� |� q"W | j�d� d S ) N�lparenrO r� T)r� r� rq z-non-default argument follows default argument) �args�defaultsr) rk r9 rP rr r� rj rC r| r: )r0 r� r� r� �argr3 r3 r4 �parse_signature� s
zParser.parse_signaturec C sv t jt| j�jd�}| jjjdkr.| �|� n g |_g |_ | �
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expected call)z name:endcallT)rg )r � CallBlockrm r) r7 r9 rP r� r� r� r| r� �Callr: rZ ro ry )r0 r� Z call_noder3 r3 r4 r_ � s zParser.parse_call_blockc C s8 t jt| j�jd�}| jd dd�|_| jddd�|_|S )N)r7 T)� start_inline)zname:endfilter)rg ) r � FilterBlockrm r) r7 ru r[ ro ry )r0 r� r3 r3 r4 r` � s zParser.parse_filter_blockc C sB t jt| j�jd�}| jdd�j|_| �|� | jddd�|_ |S )N)r7 T)r� )z
name:endmacro)rg )
r �Macrorm r) r7 rr r$ r� ro ry )r0 r� r3 r3 r4 � parse_macro� s
zParser.parse_macroc C sT t jt| j�jd�}g |_ x4| jjjdkrN|j r<| j�d� |j �| � � � q W |S )N)r7 rN r� )
r �Outputrm r) r7 r9 rP rk rC r| )r0 r� r3 r3 r4 � parse_print� s zParser.parse_printzte.Literal[True])�
with_tupler� r' c C s d S )Nr3 )r0 r� r� r3 r3 r4 rr � s zParser.parse_assign_targetT)r� r� rL rp r' c C s d S )Nr3 )r0 r� r� rL rp r3 r3 r4 rr � s c C s� |rN| j �� jdkrN| j �d�}t| j � | j �d�}tj|j|j|jd�}nL|rt| j �d�}tj |jd|jd�}n&|r�| j
d|d�}n| � � }|� d� |�
� s�| �dt|�j�� ��|j� |S )a Parse an assignment target. As Jinja allows assignments to
tuples, this function can parse all allowed assignment targets. Per
default assignments to tuples are parsed, that can be disable however
by setting `with_tuple` to `False`. If only assignments to names are
wanted `name_only` can be set to `True`. The `extra_end_rules`
parameter is forwarded to the tuple parsing function. If
`with_namespace` is enabled, a namespace assignment may be parsed.
�dotr$ )r7 �storeT)�
simplifiedrL zcan't assign to )r) r� rP rk rm r �NSRefr\ r7 �Namers �
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can_assignr: �__name__�lower)r0 r� r� rL rp rc �attrrw r3 r3 r4 rr � s"
)r{ r' c C s |r | � � S | �� S )z�Parse an expression. Per default all expressions are parsed, if
the optional `with_condexpr` parameter is set to `False` conditional
expressions are not parsed.
)�parse_condexpr�parse_or)r0 r{ r3 r3 r4 r| s zParser.parse_expressionc C sf | j jj}| �� }xN| j �d�r`| �� }| j �d�r>| �� }nd }tj||||d�}| j jj}qW |S )Nzname:ifz name:else)r7 )r) r9 r7 r� rj r� r ZCondExpr)r0 r7 Zexpr1Zexpr2Zexpr3r3 r3 r4 r� s
zParser.parse_condexprc C sJ | j jj}| �� }x2| j �d�rD| �� }tj|||d�}| j jj}qW |S )Nzname:or)r7 )r) r9 r7 � parse_andrj r �Or)r0 r7 �left�rightr3 r3 r4 r� s
zParser.parse_orc C sJ | j jj}| �� }x2| j �d�rD| �� }tj|||d�}| j jj}qW |S )Nzname:and)r7 )r) r9 r7 � parse_notrj r �And)r0 r7 r� r� r3 r3 r4 r� & s
zParser.parse_andc C s4 | j j�d�r,t| j �j}tj| �� |d�S | �� S )Nzname:not)r7 ) r) r9 r rm r7 r �Notr� �
parse_compare)r0 r7 r3 r3 r4 r� / s zParser.parse_notc C s� | j jj}| �� }g }x�| j jj}|tkrLt| j � |�t� || �� �� nh| j �
d�rp|�t� d| �� �� nD| j j� d�r�| j � � � d�r�| j �
d� |�t� d| �� �� nP | j jj}qW |s�|S tj|||d�S )Nzname:in�inzname:notr� Znotin)r7 )r) r9 r7 � parse_math1rP �_compare_operatorsrm rC r ZOperandrj r r� r� �Compare)r0 r7 rx Zops�
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zParser.parse_comparec C sb | j jj}| �� }xJ| j jjdkr\t| j jj }t| j � | �� }||||d�}| j jj}qW |S )N)r r )r7 )r) r9 r7 � parse_concatrP r rm )r0 r7 r� �clsr� r3 r3 r4 r� L s
zParser.parse_math1c C sb | j jj}| �� g}x*| j jjdkr>t| j � |�| �� � qW t|�dkrT|d S tj ||d�S )N�tilder r )r7 )
r) r9 r7 � parse_math2rP rm rC �lenr ZConcat)r0 r7 r� r3 r3 r4 r� W s
zParser.parse_concatc C sb | j jj}| �� }xJ| j jjdkr\t| j jj }t| j � | �� }||||d�}| j jj}qW |S )N)r r r r )r7 )r) r9 r7 � parse_powrP r rm )r0 r7 r� r� r� r3 r3 r4 r� a s
zParser.parse_math2c C sV | j jj}| �� }x>| j jjdkrPt| j � | �� }tj|||d�}| j jj}qW |S )N�pow)r7 )r) r9 r7 � parse_unaryrP rm r �Pow)r0 r7 r� r� r3 r3 r4 r� l s
zParser.parse_pow)� with_filterr' c C s� | j jj}| j jj}|dkr<t| j � tj| �d�|d�}n0|dkrdt| j � tj| �d�|d�}n| � � }| �
|�}|r�| � |�}|S )Nr F)r7 r ) r) r9 rP r7 rm r ZNegr� ZPosr� �
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zParser.parse_unaryc C sz | j j}|jdkrr|jdkr4tj|jdk|jd�}n0|jdkrPtjd |jd�}ntj|jd|jd�}t| j � �n|jdkr�t| j � |jg}|j}x,| j jjdkr�|� | j jj� t| j � q�W tjd�
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� }n.|jdk�r^| �� }n| �dt|���|j� |S )Nr$ )�true�false�True�False)r� r� )r7 )Znone�None�load�string� )�integer�floatr� T)�explicit_parenthesesrO �lbracket�lbracez unexpected )r) r9 rP r\ r �Constr7 r� rm rC rA rs rk �
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zParser.parse_primary)r� r{ rL r� r' c s� � j jj}|r� j}n |r"� j}ntjd�� fdd� }g }d}xL|rP� j �d� � �|�r\P |� |� � � j jj
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�S ) a� Works like `parse_expression` but if multiple expressions are
delimited by a comma a :class:`~jinja2.nodes.Tuple` node is created.
This method could also return a regular expression instead of a tuple
if no commas where found.
The default parsing mode is a full tuple. If `simplified` is `True`
only names and literals are parsed. The `no_condexpr` parameter is
forwarded to :meth:`parse_expression`.
Because tuples do not require delimiters and may end in a bogus comma
an extra hint is needed that marks the end of a tuple. For example
for loops support tuples between `for` and `in`. In that case the
`extra_end_rules` is set to ``['name:in']``.
`explicit_parentheses` is true if the parsing was triggered by an
expression in parentheses. This is used to figure out if an empty
tuple is a valid expression or not.
)r' c s � j dd�S )NF)r{ )r| r3 )r0 r3 r4 r, � s z!Parser.parse_tuple.<locals>.parseFr� Tr z Expected an expression, got r� )r7 )r) r9 r7 r� r| r �Exprrk rR rC rP r: r �Tuple) r0 r� r{ rL r� r7 r, r� Zis_tupler3 )r0 r4 rs � s2
zParser.parse_tuplec C sn | j �d�}g }x@| j jjdkrP|r0| j �d� | j jjdkr@P |�| �� � qW | j �d� tj||jd�S )Nr� �rbracketr� )r7 ) r) rk r9 rP rC r| r �Listr7 )r0 rc �itemsr3 r3 r4 r� � s zParser.parse_listc C s� | j �d�}g }xf| j jjdkrv|r0| j �d� | j jjdkr@P | �� }| j �d� | �� }|�tj|||jd�� qW | j �d� tj ||jd�S )Nr� �rbracer� rh )r7 )
r) rk r9 rP r| rC r ZPairr7 �Dict)r0 rc r� �keyr\ r3 r3 r4 r� � s zParser.parse_dictc C sF x@| j jj}|dks |dkr(| �|�}q|dkr<| �|�}qP qW |S )Nr� r� r� )r) r9 rP �parse_subscript�
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zParser.parse_postfixc C s` xZ| j jj}|dkr | �|�}q|dkrB| j jjdkrB| �|�}q|dkrV| �|�}qP qW |S )N�piper$ �isr� )r) r9 rP ru r\ �
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zParser.parse_filter_exprc C s t | j�}|jdkr�| jj}t | j� |jdkrFtj||jd|jd�S |jdkr^| �d|j� tj |j|jd�}tj
||d|jd�S |jdk�rg }x0| jjjdkr�|r�| j� d � |� | �
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