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o �b�$ � @ s� d Z ddlmZ G dd� de�ZG dd� d�ZG dd� d�ZG d d � d �ZG d d � d �Zd d� Z G dd� d�Z G dd� d�Z G dd� d�Z G dd� d�Z G dd� d�Zi Zdd� Zdd � Zd d � Zd d � Zd!d"� Zd#S )$z� XPath query support. This module provides L{XPathQuery} to match L{domish.Element<twisted.words.xish.domish.Element>} instances against XPath-like expressions. � )�StringIOc @ s e Zd Zdd� ZdS )� LiteralValuec C s | S �N� ��self�elemr r �:/usr/lib/python3/dist-packages/twisted/words/xish/xpath.py�value � zLiteralValue.valueN)�__name__� __module__� __qualname__r r r r r r s r c @ � e Zd Zdd� Zdd� ZdS )� IndexValuec C s t |�d | _d S )N� )�int�index)r r r r r �__init__ s zIndexValue.__init__c C s |j | j S r )�childrenr r r r r r � zIndexValue.valueN)r r r r r r r r r r � r c @ �$ e Zd Zdd� Zdd� Zdd� ZdS )� AttribValuec C s || _ | j dkr| j| _d S d S )N�xmlns)� attribname�value_nsr )r r r r r r s �zAttribValue.__init__c C s |j S r )�urir r r r r % s zAttribValue.value_nsc C s | j |jv r |j| j S d S r )r � attributesr r r r r ( s zAttribValue.valueN)r r r r r r r r r r r s r c @ r )� CompareValuec C �, || _ || _|dkr| j| _d S | j| _d S )N�=)�lhs�rhs� _compareEqualr �_compareNotEqual�r r" �opr# r r r r 0 � zCompareValue.__init__c C s | j �|�| j�|�kS r �r" r r# r r r r r$ 8 � zCompareValue._compareEqualc C s | j �|�| j�|�kS r r) r r r r r% ; r* z CompareValue._compareNotEqualN)r r r r r$ r% r r r r r / s r c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) � BooleanValuea^ Provide boolean XPath expression operators. @ivar lhs: Left hand side expression of the operator. @ivar op: The operator. One of C{'and'}, C{'or'}. @ivar rhs: Right hand side expression of the operator. @ivar value: Reference to the method that will calculate the value of this expression given an element. c C r )N�and)r" r# � _booleanAndr � _booleanOrr& r r r r J r( zBooleanValue.__init__c C s | j �|�o | j�|�S )z� Calculate boolean and of the given expressions given an element. @param elem: The element to calculate the value of the expression from. r) r r r r r- R � zBooleanValue._booleanAndc C s | j �|�p | j�|�S )z� Calculate boolean or of the given expressions given an element. @param elem: The element to calculate the value of the expression from. r) r r r r r. Z r/ zBooleanValue._booleanOrN)r r r �__doc__r r- r. r r r r r+ ? s r+ c C s d| }t � | � }|S )z; Internal method which selects the function object z _%s_Function)�globals)�fname� klassname�cr r r �Functionc s r5 c @ r )� _not_Functionc C s d | _ d S r �� baseValue�r r r r r m � z_not_Function.__init__c C s || _ d S r r7 )r r8 r r r � setParamsp r: z_not_Function.setParamsc C s | j �|� S r )r8 r r r r r r s � z_not_Function.valueN)r r r r r; r r r r r r6 l s r6 c @ r )�_text_Functionc C s d S r r r9 r r r r; x r z_text_Function.setParamsc C s t |�S r )�strr r r r r { � z_text_Function.valueN)r r r r; r r r r r r= w r r= c @ �< e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd S )� _Locationc C � g | _ d | _d | _d S r �� predicates� elementName� childLocationr9 r r r r � � z_Location.__init__c C s: | j d kr | j |jkr dS | jD ] }|�|�s dS qdS �Nr r )rE �namerD r �r r �pr r r �matchesPredicates� s �z_Location.matchesPredicatesc C s@ | � |�sdS | jd kr |�� D ] }| j�|�r dS qdS dS rH )rL rF �elements�matches�r r r4 r r r rN � s ��z_Location.matchesc C sJ | � |�sd S | jd kr |�� D ] }| j�||� qd S |�t|�� d S r )rL rF rM �queryForString�writer> )r r � resultbufr4 r r r rP � s �z_Location.queryForStringc C sF | � |�sd S | jd kr |�� D ] }| j�||� qd S |�|� d S r )rL rF rM � queryForNodes�append�r r � resultlistr4 r r r rS � s �z_Location.queryForNodesc C s\ | � |�sd S | jd kr |�� D ] }| j�||� qd S |jD ] }t|t�r+|�|� q d S r )rL rF rM �queryForStringListr � isinstancer> rT rU r r r rW � s � ��z _Location.queryForStringListN) r r r r rL rN rP rS rW r r r r rA s rA c @ sT e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z dd� Z dd� Z dS )� _AnyLocationc C rB r rC r9 r r r r � rG z_AnyLocation.__init__c C s | j D ] }|�|�s dS qdS rH )rD r rJ r r r rL � s �z _AnyLocation.matchesPredicatesc C s( |j d kr | �|j |� |�|j� d S r )�parent� listParentsrT rI )r r � parentlistr r r r[ � s z_AnyLocation.listParentsc C sV | j d ks | j |jkr)| �|�r)| jd kr'|�� D ] }| j�|�r$ dS qdS dS dS �NTF�rE rI rL rF rM rN rO r r r � isRootMatch� s � ��z_AnyLocation.isRootMatchc C sx | j d ks | j |jkr*| �|�r*| jd kr(|�� D ] }| j�|�r%| S qd S |S |�� D ] }| �|�r9| S q.d S r r^ rO r r r �findFirstRootMatch� s � � �z _AnyLocation.findFirstRootMatchc C s0 | � |�rdS |�� D ] }| �|�r dS q dS r] )r_ rM rN rO r r r rN � s �z_AnyLocation.matchesc C s t d��)Nz2queryForString is not implemented for any location)�NotImplementedError)r r rR r r r rP r? z_AnyLocation.queryForStringc C s2 | � |�r |�|� |�� D ]}| �||� qd S r )r_ rT rM rS rU r r r rS s �z_AnyLocation.queryForNodesc C sH | � |�r|jD ] }t|t�r|�|� q|�� D ]}| �||� qd S r )r_ r rX r> rT rM rW rU r r r rW s � �z _AnyLocation.queryForStringListN) r r r r rL r[ r_ r` rN rP rS rW r r r r rY � s rY c @ r@ )� XPathQueryc C s4 || _ ddlm}m} |||��}t|d�� | _d S )Nr )� XPathParser�XPathParserScanner�XPATH)�queryStr� twisted.words.xish.xpathparserrc rd �getattr� baseLocation)r rf rc rd �parserr r r r s zXPathQuery.__init__c C s | j �� S r )rf �__hash__r9 r r r rk r: zXPathQuery.__hash__c C s | j �|�S r )ri rN r r r r rN " r zXPathQuery.matchesc C s t � }| j�||� |�� S r )r ri rP �getvalue�r r �resultr r r rP % s zXPathQuery.queryForStringc C �& g }| j �||� t|�dkrd S |S �Nr )ri rS �lenrm r r r rS * � zXPathQuery.queryForNodesc C ro rp )ri rW rq rm r r r rW 2 rr z XPathQuery.queryForStringListN) r r r r rk rN rP rS rW r r r r rb s rb c C s | t vr t| �t | < t | S r )�__internedQueriesrb )� queryStringr r r � internQuery> s ru c C � t | ��|�S r )ru rN ��xpathstrr r r r rN D r< rN c C rv r )ru rW rw r r r rW H r< rW c C rv r )ru rP rw r r r rP L r< rP c C rv r )ru rS rw r r r rS P r< rS N)r0 �ior r> r r r r r+ r5 r6 r= rA rY rb rs ru rN rW rP rS r r r r �<module> s& $ >Y%
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