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e �Z G d,d-� d-e �Z G d.d/� d/e �Z G d0d1� d1e �Z G d2d3� d3e �Z dS )4zFThis module contains classes representing syntactical elements of SQL.� N��tokens)�
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remove_quotesc @ � e Zd ZdZdd� Zdd� ZdS )�NameAliasMixinz'Implements get_real_name and get_alias.c C s$ | j tjdfd�\}}| j|dd�S )�7Returns the real name (object name) of this identifier.�.��mT)� real_name)�
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�2Returns the alias for this identifier or ``None``.�ASr N� T)�keywords��t� ��reverse)r r �Keywordr �
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dd� ZdS )�Tokenz�Base class for all other classes in this module.
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``value`` is the unchanged value of the token and ``ttype`` is
the type of the token.
)�value�ttype�parent�
normalized�
is_keyword�is_group�
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is_newlinec C sf t |�}|| _|| _d | _d| _|tjv | _| jtjv | _ | jtj
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d S )NF)�strr- r. r/ r2 r r! r1 r" r3 �Newliner4 �upperr0 )r r. r- r r r �__init__3 s zToken.__init__c C � | j S �N�r- �r r r r �__str__> s z
Token.__str__c C sF | � � }| �� }|�d�r|�d�rdnd}djddt| �it� ��S )N�'�"z"<{cls} {q}{value}{q} at 0x{id:2X}>�idr )�_get_repr_name�_get_repr_value�
startswith�endswith�formatr@ �locals)r �clsr- �qr r r �__repr__E s ��zToken.__repr__c C s t | j��d�d S )Nr
���)r5 r. �splitr< r r r rA M s zToken._get_repr_namec C s2 t | �}t|�dkr|d d� d }t�dd|�S )N� � z...z\s+� )r5 r# �re�sub)r �rawr r r rB P s zToken._get_repr_valuec c s � | V dS )zResolve subgroups.Nr r< r r r �flattenV s �
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Token.flattenFc s� | j |u }|r |du r
|S t|t�r|f}|r8| jr tjnd� � fdd�|D �}|D ] }|�| j�r5 dS q*dS | jrBdd� |D �}| j|v S )a, Checks whether the token matches the given arguments.
*ttype* is a token type. If this token doesn't match the given token
type.
*values* is a list of possible values for this token. The values
are OR'ed together so if only one of the values matches ``True``
is returned. Except for keyword tokens the comparison is
case-sensitive. For convenience it's OK to pass in a single string.
If *regex* is ``True`` (default is ``False``) the given values are
treated as regular expressions.
Nr c 3 s � | ] }t �|� �V qd S r: )rO �compile��.0�v��flagr r � <genexpr>p s � z Token.match.<locals>.<genexpr>TFc s s � | ]}|� � V qd S r: )r7 rT r r r rY x s � )r. �
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IGNORECASE�searchr0 )r r. �values�regex� type_matched�patternr rW r �matchZ s
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z Token.matchc C s& | j }|rt||�r dS |j }|sdS )z�Returns ``True`` if this token is within *group_cls*.
Use this method for example to check if an identifier is within
a function: ``t.within(sql.Function)``.
TF)r/ rZ )r � group_clsr/ r r r �within| s
�z Token.withinc C s
| j |kS )z<Returns ``True`` if this token is a direct child of *other*.�r/ )r �otherr r r � is_child_of� �
zToken.is_child_ofc C s$ | j }|r||kr dS |j }|sdS )z7Returns ``True`` if *other* is in this tokens ancestry.TFrd )r re r/ r r r � has_ancestor� s �zToken.has_ancestorN�F)r( r) r* r+ � __slots__r8 r= rI rA rB rR ra rc rf rh r r r r r, ( s
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edd� �ZdAdd �ZdBd d �ZdCd!d"�Zd#d$� Zd%d&� ZdBd'd(�ZdDd)d*�ZdEd+d,�Z dBd-d.�Zd/d0� ZdFd1d2�Zd3d4� Zd5d6� Z d7d8� Z d9d:� Z d;d<� Z dGd=d>�Z � Z!S )H� TokenListzwA group of tokens.
It has an additional instance attribute ``tokens`` which holds a
list of child-tokens.
r Nc s: |pg � _ � fdd�� j D � t� �d t� �� d� _d S )Nc s g | ]}t |d � ��qS rd )�setattr�rU �tokenr< r r �
<listcomp>� � z&TokenList.__init__.<locals>.<listcomp>T)r �superr8 r5 r2 )r r �� __class__r< r r8 � s
zTokenList.__init__c C s d� dd� | �� D ��S )N� c s s � | ]}|j V qd S r: r; rm r r r rY � s � z$TokenList.__str__.<locals>.<genexpr>)�joinrR r< r r r r= � s zTokenList.__str__c C s
t | j�S r: )�iterr r< r r r �__iter__� �
zTokenList.__iter__c C s
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dS ) z Pretty-print the object tree.r z`- z|- r> r? z${_pre}{pre}{idx} {cls} {q}{value}{q})�fileNz z| r ) r# r � enumeraterA rB rC rD �printrE rF r2 � _pprint_tree)r � max_depth�depth�f�_pre� token_count�idxrn rG r- �last�prerH �
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��� ��zTokenList._pprint_treec C sD d}| � � D ]}|t|j� }|| kr |k r | S |}qdS )z-Returns the token that is on position offset.r N)rR r# r- )r �offsetr� rn �endr r r �get_token_at_offset� s ��z TokenList.get_token_at_offsetc
c sT � z| j D ]}|jr|�� E dH q|V qW dS ty) } ztd�|�d}~ww )znGenerator yielding ungrouped tokens.
This method is recursively called for all child tokens.
Nz Maximum recursion depth exceeded)r r2 rR �RecursionErrorr )r rn �errr r r rR � s �
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��zTokenList.flattenc c s � | j D ]}|jr |V qd S r: )r r2 �r rn r r r � get_sublists� s �
��zTokenList.get_sublistsc C r9 r: r r< r r r �_groupable_tokens� s zTokenList._groupable_tokensFc C s� |du rdS t |ttf�s|f}|r!|du sJ �t|d dd�}n|du r*t| j�}t||�}|D ]}| j| }|D ]}||�rH||f S q:q1dS )z next token that match functionsNr rJ �NN)rZ �list�tuple�ranger# r ) r �funcs�startr� r �indexesr� rn �funcr r r �_token_matching� s$
��zTokenList._token_matchingTc s � �fdd�}| � |�d S )z�Returns the first child token.
If *skip_ws* is ``True`` (the default), whitespace
tokens are ignored.
if *skip_cm* is ``True`` (default: ``False``), comments are
ignored too.
c � �r| j p� ot| tjtd� S �N)r �i�r3 r r �Comment��tk��skip_cm�skip_wsr r �matcher �
�z&TokenList.token_first.<locals>.matcherr �r� )r r� r� r� r r� r � token_first� s
zTokenList.token_firstrJ c s" |d7 }| � � ��fdd�||�S )Nr c s t | � ���S r: )r r� �r� r r r r �<lambda> s z)TokenList.token_next_by.<locals>.<lambda>r� )r r� r r r� r� r r� r r
s zTokenList.token_next_byc C s2 t |ttf�s
|fn|}dd� |D �}| �||�S )Nc s g | ]� � fd d��qS )c s
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z9TokenList.token_not_matching.<locals>.<listcomp>.<lambda>r )rU r r� r ro rp z0TokenList.token_not_matching.<locals>.<listcomp>)rZ r� r� r� �r r� r� r r r �token_not_matching s z TokenList.token_not_matchingc C s | � ||�d S )Nr r� r� r r r �token_matching s zTokenList.token_matchingc C s | j |||dd�S )z�Returns the previous token relative to *idx*.
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token_prev s zTokenList.token_prevc s2 |du rdS |d7 }� �fdd�}| j |||d�S )z�Returns the next token relative to *idx*.
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Nr� r c r� r� r� r� r� r r r� . r� z%TokenList.token_next.<locals>.matcherr r� )r r� r� r� r� r� r r� r r� # s
zTokenList.token_nextc C s0 t |t�r|n| �|�}|| j|d� �|� S )zReturn list index of token.N)rZ �int� token_indexr �index)r rn r� r r r r� 3 s zTokenList.token_indexc C s� |}| j | }|| }|r1t||�r1| j |d |� }|} | j �|� | j |d |�= t|�| _n| j ||� }||�} | g| j ||�< | | _|D ]}
| |
_qI| S )z+Replace tokens by an instance of *grp_cls*.r )r rZ �extendr5 r- r/ ) r �grp_clsr� r� � include_endr� � start_idx�end_idx� subtokens�grprn r r r � group_tokens8 s
zTokenList.group_tokensc C s, t |t�s
| �|�}| |_| j�||� dS )z Inserts *token* before *where*.N)rZ r� r� r/ r �insert)r �wherern r r r �
insert_beforeV s
zTokenList.insert_beforec C sV t |t�s
| �|�}| j||d�\}}| |_|du r"| j�|� dS | j�||� dS )z Inserts *token* after *where*.�r� N)rZ r� r� r� r/ r �appendr� )r r� rn r� �nidx�next_r r r � insert_after] s
zTokenList.insert_afterc C s | � � duS )z(Returns ``True`` if an alias is present.N)r' r< r r r � has_aliash s zTokenList.has_aliasc C � dS )r Nr r< r r r r' l � zTokenList.get_aliasc C s | � � p| �� S )a Returns the name of this identifier.
This is either it's alias or it's real name. The returned valued can
be considered as the name under which the object corresponding to
this identifier is known within the current statement.
)r' r r< r r r �get_namep s zTokenList.get_namec C r� )r Nr r< r r r r y r� zTokenList.get_real_namec C s: | j tjdfd�\}}| �|�\}}|durt|j�S dS )ztReturn name of the parent object if any.
A parent object is identified by the first occurring dot.
r
r N)r r r r� r r- )r r r �prev_r r r �get_parent_name} s zTokenList.get_parent_namec C s� |r | j |d� n| j }|rt|�n|}tjtjtjjg}|r%|�tj� |D ]#}|j |v r5t
|j � S t |t
tf�rJ|rD|�� S |�� S q'dS )z/Returns the name of the first token with a nameN)r �reversedr �Name�Wildcard�String�Symbolr� r! r. r r- rZ �
Identifier�Functionr r� )r r� r r r
r �typesrn r r r r � s
��zTokenList._get_first_namer: )Nr Nrt )r NF)TF)NNNrJ N)TFF)r )T)NFFF)"r( r) r* r+ rj r8 r= rw rz rA r r� rR r� �propertyr� r� r� r r� r� r� r� r� r� r� r� r� r' r� r r� r �
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�
�rk c @ � e Zd ZdZdd� ZdS )� StatementzRepresents a SQL statement.c C s� | j dd�}|du r dS |jtjjtjjfv r|jS |jtjjkrU| �|�}|durU| j |dd�\}}t
|t t f�rQ| j |dd�\}}|durQ|jtjjkrQ|jS |dus*dS )aM Returns the type of a statement.
The returned value is a string holding an upper-cased reprint of
the first DML or DDL keyword. If the first token in this group
isn't a DML or DDL keyword "UNKNOWN" is returned.
Whitespaces and comments at the beginning of the statement
are ignored.
T)r� N�UNKNOWNr� )
r� r. r r! �DML�DDLr0 �CTEr� r� rZ r� �IdentifierList)r rn �tidxr r r �get_type� s
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zStatement.get_typeN)r( r) r* r+ r� r r r r r� � � r� c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
S ) r� zNRepresents an identifier.
Identifiers may have aliases or typecasts.
c C s | j tjd�\}}|duS )z7Return ``True`` if this identifier contains a wildcard.r N)r r r� )r r rn r r r � is_wildcard� s zIdentifier.is_wildcardc C s6 | j tjdfd�\}}| j|dd�\}}|r|jS dS )z<Returns the typecast or ``None`` of this object as a string.z::r Fr� N)r r r r� r- )r �midx�markerr� r� r r r � get_typecast� s zIdentifier.get_typecastc C s" | j tjjd�\}}|r|jS dS )z5Returns the ordering or ``None`` as uppercase string.r N)r r r! �Orderr0 )r r �orderingr r r � get_ordering� s zIdentifier.get_orderingc c s, � | j D ]}t|t�r|j dd� V qdS )z(Returns an iterator of index token listsr rJ N)r rZ �SquareBracketsr� r r r �get_array_indices� s �
��z Identifier.get_array_indicesN)r( r) r* r+ r� r� r� r� r r r r r� � s r� c @ r� )r� z.A list of :class:`~sqlparse.sql.Identifier`'s.c c s, � | j D ]}|js|�tjd�s|V qdS )zkReturns the identifiers.
Whitespaces and punctuations are not included in this generator.
�,N)r r3 ra r r r� r r r �get_identifiers� s �
��z IdentifierList.get_identifiersN)r( r) r* r+ r� r r r r r� � r� r� c @ s< e Zd ZdZejjdfejdfgZej j
dfZ ejdfZ dS )� TypedLiteralzEA typed literal, such as "date '2001-09-28'" or "interval '2 hours'".N� TIMESTAMP)�DAY�HOUR�MINUTE�MONTH�SECOND�YEAR)
r( r) r* r+ r r� �Builtinr! �M_OPENr� �Single�M_CLOSE�M_EXTENDr r r r r� � s
r� c @ �0 e Zd ZdZejdfZejdfZedd� �Z dS )� ParenthesiszTokens between parenthesis.�(�)c C � | j dd� S �Nr rJ r r< r r r r� � � z Parenthesis._groupable_tokensN�
r( r) r* r+ r r r� r� r� r� r r r r r� � �
r� c @ r� )r� z Tokens between square brackets�[�]c C r� r� r r< r r r r� r� z SquareBrackets._groupable_tokensNr� r r r r r� � r� r� c @ � e Zd ZdZdS )�
Assignmentz An assignment like 'var := val;'N�r( r) r* r+ r r r r r � r c @ �$ e Zd ZdZejdfZejdfZdS )�Ifz7An 'if' clause with possible 'else if' or 'else' parts.�IFzEND IFN�r( r) r* r+ r r! r� r� r r r r r �
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c @ s( e Zd ZdZedd� �Zedd� �ZdS )�
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| j d S �Nr r r< r r r �left rg zComparison.leftc C r )NrJ r r< r r r �right rg zComparison.rightN)r( r) r* r+ r� r r r r r r r
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A comment.c C s | j o | j d jtjjkS r )r r. r r� � Multiliner< r r r � is_multiline& s zComment.is_multilineN)r( r) r* r+ r r r r r r� # r� r� c @ r )�WherezA WHERE clause.�WHERE) �ORDER BYzGROUP BY�LIMIT�UNIONz UNION ALL�EXCEPT�HAVING� RETURNING�INTONr r r r r r * r r c @ s e Zd ZdZejdfZdS )�OverzAn OVER clause.�OVERN)r( r) r* r+ r r! r� r r r r r 2 s r c @ r )�HavingzA HAVING clause.r )r r Nr r r r r r 7 r r c @ s. e Zd ZdZejdfZejdfZddd�ZdS ) �CasezAA CASE statement with one or more WHEN and possibly an ELSE part.�CASE�ENDFc C s� d}d}g }|}| j D ]n}|�tjd�rq |r |jtjv r q |�tjd�r/|�g g f� |}n$|�tjd�r9|}n|�tjd�rJ|�dg f� |}n |�tjd�rSd}|r^|s^|�g g f� ||krl|d d
�|� q ||kry|d d �|� q |S ) zeReturns a list of 2-tuples (condition, value).
If an ELSE exists condition is None.
r r r! �WHEN�THEN�ELSENr" rJ r )r ra r r! r. r" r� )r r� � CONDITION�VALUE�ret�modern r r r � get_casesB s6
�zCase.get_casesNri ) r( r) r* r+ r r! r� r� r* r r r r r = s
r c @ r )r� z A function or procedure call.c C sZ | j td�d }g }|jD ] }t|t�r|�� S t|ttt ft
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|S )z Return a list of parameters.�r� r )r� r )
r r� r rZ r� r� r r� r� r� r �Literalr� )r � parenthesis�resultrn r r r �get_parametersu s
�
�zFunction.get_parametersc C s" | j td�}|s
dS |d jd S )z Return the window if it exists.r+ Nr rJ )r r r )r � over_clauser r r �
get_window� s zFunction.get_windowN)r( r) r* r+ r/ r1 r r r r r� r s r� c @ r )�BeginzA BEGIN/END block.�BEGINr" Nr r r r r r2 � r r2 c @ r )� OperationzGrouping of operationsNr r r r r r4 � r r4 c @ r )�ValueszGrouping of valuesNr r r r r r5 � r r5 c @ r )�CommandzGrouping of CLI commands.Nr r r r r r6 � r r6 )!r+ rO �sqlparser r �sqlparse.exceptionsr �sqlparse.utilsr r r r, rk r� r� r� r� r� r� r r r
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