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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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z Parser.fail.)r# �end_token_stackr7 r& c C s� t � }x |D ]}|jtt|�� q W |rDdjtttt|d
���}nd }|d krXdg}nd|�d�g}|r�|d k r�||kr�|jd|� d�� n|jd|� d�� | jr�|jd| jd �d�� | jd j|�|� d S ) Nz or r 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> ) r �update�mapr �join�repr�appendr. r: )r0 r# r; r7 �expected�exprsZcurrently_looking�messager3 r3 r4 � _fail_ut_eofX s(
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|j�}|dk r�|| �S | jj� d}| j|j|j� W d|r�| jj� X dS ) zParse a single statement.r# ztag name expectedTZparse_�call�filterNF)r( r9 rQ r: r7 r. rC �value�_statement_keywords�getattr�parse_call_block�parse_filter_blockr* �get�poprH )r0 �tokenZpop_tag�f�extr3 r3 r4 �parse_statement� s*
zParser.parse_statementF)rI � drop_needler& c C sL | j jd� | j jd� | j|�}| j jjdkr:| j|� |rHt| j � |S )aR Parse multiple statements into a list until one of the end tokens
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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.
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zParser.parse_statementsc C sf t | j�j}| jdd�}| jjd�r<| j� }tj|||d�S | jd�}| j ddd�}tj
||||d�S ) zParse an assign statement.T)�with_namespace�assign)r7 N� name:endset)rh )rs ) rn r( r7 �parse_assign_targetrk � parse_tupler �Assign� parse_filterrp � AssignBlock)r0 r7 �target�exprZ filter_node�bodyr3 r3 r4 � parse_set� s
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|g�S )N)r7 r �name:endautoescapeT)rh )r� ) r ZScopedEvalContextModifierrn r( r7 �Keywordr� �optionsrp r{ �Scope)r0 r� r3 r3 r4 �parse_autoescape s zParser.parse_autoescapec C s� t jt| j�jd�}| jjd�j|_| jjd�|_ | jjd�|_
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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.�
name:endblockT)rh c s s0 | ](}|j D ] }t|t j�o$|jj� V q qd S )N)r �
isinstance� TemplateData�data�isspace)�.0r{ �childr3 r3 r4 � <genexpr>; s z%Parser.parse_block.<locals>.<genexpr>z7Required blocks can only contain comments or whitespacezname:)r� )r �Blockrn r( r7 rl r] r# rk �scoped�requiredr9 rQ r: rp r{ �all)r0 r� r3 r3 r4 � parse_block& s
zParser.parse_blockc C s" t jt| j�jd�}| j� |_|S )N)r7 )r �Extendsrn r( r7 r� �template)r0 r� r3 r3 r4 �
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zParser.parse_extends)r� �defaultr& c C sH | j jjdd�r>| j j� jd�r>t| j �jdk|_| j j� n||_|S )Nz name:withz name:withoutz name:contextr ) r( r9 rR �lookr� rn r] � with_context�skip)r0 r� r� r3 r3 r4 �parse_import_contextI s zParser.parse_import_contextc C sb t jt| j�jd�}| j� |_| jjjd�rP| jj � jd�rPd|_
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| j |d�S )N)r7 zname:asT)� name_onlyF) r �Importrn r( r7 r� r� rl rt r# ry r� )r0 r� r3 r3 r4 � parse_importa s
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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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� � n|r�| j d� |j |� q"W | jjd� d S ) N�lparenrP r� T)r� r� rr z-non-default argument follows default argument) �args�defaultsr( rl r9 rQ rt r� rk rC r� r: )r0 r� r� r� �argr3 r3 r4 �parse_signature� s
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expected call� name:endcallT)rh )r� )r � CallBlockrn r( r7 r9 rQ r� r� r� r� r� �Callr: r[ rp r{ )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�name:endfilter)rh )r� ) r � FilterBlockrn r( r7 rw r\ rp r{ )r0 r� r3 r3 r4 ra � s zParser.parse_filter_blockc C sB t jt| j�jd�}| jdd�j|_| j|� | jddd�|_ |S )N)r7 T)r� �
name:endmacro)rh )r� )
r �Macrorn r( r7 rt r# r� rp r{ )r0 r� r3 r3 r4 � parse_macro� s
zParser.parse_macroc C sT t jt| j�jd�}g |_ x4| jjjdkrN|j r<| jjd� |j j| j � � q W |S )N)r7 rO r� )
r �Outputrn r( r7 r9 rQ rl 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 rt � s zParser.parse_assign_targetT)r� r� rM rq r& c C s d S )Nr3 )r0 r� r� rM rq r3 r3 r4 rt � s c C s� |rN| j j� jdkrN| j jd�}t| j � | j jd�}tj|j|j|jd�}nL|rt| j jd�}tj |jd|jd�}n&|r�| j
d|d�}n| j � }|j d� |j
� s�| jdt|�jj� ��|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)�
simplifiedrM zcan't assign to )r( r� rQ rl rn r �NSRefr] r7 �Nameru �
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can_assignr: �__name__�lower)r0 r� r� rM rq rd �attrry r3 r3 r4 rt � s"
)r r& c C s |r | j � S | j� S )z�Parse an expression. Per default all expressions are parsed, if
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expressions are not parsed.
)�parse_condexpr�parse_or)r0 r r3 r3 r4 r� s zParser.parse_expressionc C sf | j jj}| j� }xN| j jd�r`| j� }| j jd�r>| j� }nd }tj||||d�}| j jj}qW |S )Nzname:ifz name:else)r7 )r( r9 r7 r� rk r� r ZCondExpr)r0 r7 Zexpr1Zexpr2Zexpr3r3 r3 r4 r� s
zParser.parse_condexprc C sJ | j jj}| j� }x2| j jd�rD| j� }tj|||d�}| j jj}qW |S )Nzname:or)r7 )r( r9 r7 � parse_andrk r �Or)r0 r7 �left�rightr3 r3 r4 r� s
zParser.parse_orc C sJ | j jj}| j� }x2| j jd�rD| j� }tj|||d�}| j jj}qW |S )Nzname:and)r7 )r( r9 r7 � parse_notrk r �And)r0 r7 r� r� r3 r3 r4 r� & s
zParser.parse_andc C s4 | j jjd�r,t| j �j}tj| j� |d�S | j� S )Nzname:not)r7 ) r( r9 r� rn r7 r �Notr� �
parse_compare)r0 r7 r3 r3 r4 r� / s zParser.parse_notc C s� | j jj}| j� }g }x�| j jj}|tkrLt| j � |jtj || j� �� nh| j j
d�rp|jtj d| j� �� nD| j jj d�r�| j j � j d�r�| j j
d� |jtj d| j� �� nP | j jj}qW |s�|S tj|||d�S )Nzname:in�inzname:notr� �notin)r7 )r( r9 r7 � parse_math1rQ �_compare_operatorsrn rC r ZOperandrk r� r� r� ZCompare)r0 r7 rz �ops�
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zParser.parse_comparec C sb | j jj}| j� }xJ| j jjdkr\t| j jj }t| j � | j� }||||d�}| j jj}qW |S )Nr r )r7 )r r )r( r9 r7 � parse_concatrQ � _math_nodesrn )r0 r7 r� �clsr� r3 r3 r4 r� L s
zParser.parse_math1c C sb | j jj}| j� g}x*| j jjdkr>t| j � |j| j� � qW t|�dkrT|d S tj ||d�S )N�tilder r )r7 )
r( r9 r7 � parse_math2rQ rn rC �lenr ZConcat)r0 r7 r� r3 r3 r4 r� W s
zParser.parse_concatc C sb | j jj}| j� }xJ| j jjdkr\t| j jj }t| j � | j� }||||d�}| j jj}qW |S )Nr r r r )r7 )r r r r )r( r9 r7 � parse_powrQ r� rn )r0 r7 r� r� r� r3 r3 r4 r� a s
zParser.parse_math2c C sV | j jj}| j� }x>| j jjdkrPt| j � | j� }tj|||d�}| j jj}qW |S )N�pow)r7 )r( r9 r7 � parse_unaryrQ rn r ZPow)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| jd�|d�}n0|dkrdt| j � tj| jd�|d�}n| j � }| j
|�}|r�| j |�}|S )Nr F)r7 r ) r( r9 rQ r7 rn 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|jd
kr�t| j � |jg}|j}x,| j jjd
kr�|j | j jj� t| j � q�W tjd j
|�|d�}n�|jdk�rt| j � tj|j|jd�}nt|jdk�r2t| j � | j dd�}| j j d� nD|jdk�rH| j
� }n.|jdk�r^| j� }n| jdt|���|j� |S )Nr# �true�false�True�False)r7 �none�None�load�string� �integer�floatr� T)�explicit_parenthesesrP �lbracket�lbracez unexpected )r� r� r� r� )r� r� )r� r� )r r )r( r9 rQ r] r �Constr7 r� rn rC rA ru rl �
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|d |d
�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 �Exprrl rS rC rQ r: r �Tuple) r0 r� r rM r r7 r, r� Zis_tupler3 )r0 r4 ru � s2
zParser.parse_tuplec C sn | j jd�}g }x@| j jjdkrP|r0| j jd� | j jjdkr@P |j| j� � qW | j jd� tj||jd�S )Nr �rbracketr� )r7 ) r( rl r9 rQ rC r� r �Listr7 )r0 rd �itemsr3 r3 r4 r � s zParser.parse_listc C s� | j jd�}g }xf| j jjdkrv|r0| j jd� | j jjdkr@P | j� }| j jd� | j� }|jtj|||jd�� qW | j jd� tj ||jd�S )Nr Zrbracer� ri )r7 )
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�keyr] r3 r3 r4 r � s zParser.parse_dictc C sF x@| j jj}|dks |dkr(| j|�}q|dkr<| j|�}qP qW |S )Nr� r r� )r( r9 rQ �parse_subscript�
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zParser.parse_postfixc C s` xZ| j jj}|dkr | j|�}q|dkrB| j jjdkrB| j|�}q|dkrV| j|�}qP qW |S )N�piper# �isr� )r( r9 rQ rw r] �
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zParser.parse_filter_exprc C s t | j�}|jdkr�| jj}t | j� |jdkrFtj||jd|jd�S |jdkr^| jd|j� tj |j|jd�}tj
||d|jd�S |jdk�rg }x0| jjjdkr�|r�| jj d � |j | j
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