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o �bf" � @ s d Z ddlmZ ddlmZ ddlmZmZmZ e e G dd� de �Z dd� Z d9d d �Z d d � Z dd� Zdd� Zdd� Zd:dd�Zdd� Zdd� Zdd � Zd;d d �ZG d d!� d!ej�Zd<d#d$�Zd<d%d&�Zd<d'd(�Zd)d*� Zd+d,� Z d<d-d.�Z d/d0� Z d1d2� Z d3d4� Z d5d6� Z!d7d8� Z"d"S )=z> A library for performing interesting tasks with DOM objects. � )�StringIO)�microdom)�escape�getElementsByTagName�unescapec @ s e Zd ZdS )�NodeLookupErrorN)�__name__� __module__� __qualname__� r r �8/usr/lib/python3/dist-packages/twisted/web/domhelpers.pyr s r c C sF |j D ] }t|d�r|jr|�dt|j�|j| � t| ||� qdS )z� Look through the given node's children for strings, and attempt to do string substitution with the given parameter. � nodeValuer N)� childNodes�hasattrr � replaceData�len� substitute)�request�node�subs�childr r r r s �r ��id�class�model�patternc C s� t | d�r| �� r|D ]}t| �|��|kr| S q | �� rDt | jd�r*| jj}nt| j�}t|�D ]}t | j| |�}|rC| S q3dS dS )zx (internal) Get a node with the specified C{nodeId} as any of the C{class}, C{id} or C{pattern} attributes. � hasAttributes�lengthN) r r �str� getAttribute� hasChildNodesr r r �range�_get)r �nodeId� nodeAttrs�nodeAttrr �childNum�resultr r r r" " s � ��r" c C s t | |�}|r |S t|��)z� Get a node with the specified C{nodeId} as any of the C{class}, C{id} or C{pattern} attributes. If there is no such node, raise L{NodeLookupError}. )r" r �r r# r' r r r �get7 s r) c C s t | |�S )z� Get a node with the specified C{nodeId} as any of the C{class}, C{id} or C{pattern} attributes. If there is no such node, return L{None}. )r" )r r# r r r � getIfExistsC s r* c C s t | |�}|r t|� |S )z�Get a node with the specified C{nodeId} as any of the C{class}, C{id} or C{pattern} attributes. If there is no such node, raise L{NodeLookupError}. Remove all child nodes before returning. )r) � clearNoder( r r r � getAndClearL s r, c C s g | j dd�< dS )z2 Remove all children from the given node. N�r )r r r r r+ W s r+ � c C sr g }t | tg ��st| j|||�S | D ]#}t|d�sqt|�|��|kr,|�|� |r,q|�t||||�� q|S )z\ Find subnodes in the given node where the given attribute has the given value. r ) � isinstance�type� locateNodesr r r r �append�extend)�nodeList�key�value� noNesting� returnList� childNoder r r r1 ^ s r1 c C sB t | d�sd S | �||� | �� r | jD ] }t|||� qd S d S )N� setAttribute)r r: r r �superSetAttribute)r r5 r6 r r r r r; q s �r; c C sf t | d�sd S | �|�}|r| �||d | � n| �||� | �� r/| jD ] }t|||� q&d S d S �Nr: �/)r r r: r r �superPrependAttribute�r r5 r6 �oldr r r r r> z � �r> c C sf t | d�sd S | �|�}|r| �||d | � n| �||� | �� r/| jD ] }t|||� q&d S d S r< )r r r: r r �superAppendAttributer? r r r rB � rA rB � c C s| g }|j }| g}t|�dkr9|�d�}t|d�r,|jdur,|r%t|j�}n|j}||� |j|dd�< t|�dks|�|�S )ah Visit each child node and collect its text data, if any, into a string. For example:: >>> doc=microdom.parseString('<a>1<b>2<c>3</c>4</b></a>') >>> gatherTextNodes(doc.documentElement) '1234' With dounescape=1, also convert entities back into normal characters. @return: the gathered nodes as a single string @rtype: strr r N)r2 r �popr r r r �join)�iNode� dounescape�joinWith�gathered�gathered_append�slice�c�valr r r �gatherTextNodes� s � rN c @ s& e Zd ZdZ ddd�ZdS )�RawTexta7 This is an evil and horrible speed hack. Basically, if you have a big chunk of XML that you want to insert into the DOM, but you don't want to incur the cost of parsing it, you can construct one of these and insert it into the DOM. This will most certainly only work with microdom as the API for converting nodes to xml is different in every DOM implementation. This could be improved by making this class a Lazy parser, so if you inserted this into the DOM and then later actually tried to mutate this node, it would be parsed then. rC r Nc C s |� |� | j� |� �� d S �N)�write�data)�self�writer�indent� addindent�newl�strip� nsprefixes� namespacer r r �writexml� s zRawText.writexml)rC rC rC r NN)r r r �__doc__r[ r r r r rO � s �rO Nc C sF |d u rg }| � � s |S | jD ]}||�r|�|� t|||� q|S rP �r r r2 � findNodes��parent�matcher�accumr r r r r^ � s r^ c C sP |d u rg }| � � s |S | jD ]}||�r|�|� ||�r%t||||� q|S rP )r r r2 �findNodesShallowOnMatch)r` ra �recurseMatcherrb r r r r rc � s �rc c C sH |d u rg }| � � s |S | jD ]}||�r|�|� qt|||� q|S rP r] r_ r r r �findNodesShallow� s re c s t | � fdd��S )z� Return an iterable of the elements which are direct children of C{parent} and which have the C{attribute} attribute. c s t | dd �d uo | �� �S �N�tagName)�getattr� hasAttribute)�n�� attributer r �<lambda>� s z2findElementsWithAttributeShallow.<locals>.<lambda>)re )r` rl r rk r � findElementsWithAttributeShallow� � �rn c C � t | |fdd��S )z� Return an iterable of the elements which are children of C{parent} for which the predicate C{matcher} returns true. c S s t | dd �d uo || �S rf �rh )rj ra r r r rm � s z findElements.<locals>.<lambda>�r^ )r` ra r r r � findElements� ro rs c C s* |r t | ||fdd��S t | |fdd��S )Nc S s | � |�o | �|�|kS rP )ri r )rj rl r6 r r r rm s z+findElementsWithAttribute.<locals>.<lambda>c S s | � |�S rP )ri )rj rl r r r rm � )rs )r` rl r6 r r r �findElementsWithAttribute s � �ru c C rp )Nc S s | j |kS rP ��nodeName)rj �namer r r rm rt z findNodesNamed.<locals>.<lambda>rr )r` rx r r r �findNodesNamed s ry c C s6 | j D ]}t|d�r|�d|j � qt||� qd S )NrR rC )r r rQ rR � writeNodeData)r �oldio�subnoder r r rz s �rz c C s t � }t| |� |�� S rP )r rz �getvalue)r r{ r r r � getNodeText s r~ c C s g }| r|� | � | j} | s|S rP )r2 � parentNode)r �lr r r � getParents# s �r� c s � fdd�| j D �S )znnamedChildren(parent, nodeName) -> children (not descendants) of parent that have tagName == nodeName c s g | ] }t |d d�� kr|�qS )rg rC rq )�.0rj rv r r � <listcomp>/ s z!namedChildren.<locals>.<listcomp>r- )r` rw r rv r � namedChildren+ s r� )r )r. )r rC rP )#r\ �ior � twisted.webr �twisted.web.microdomr r r � Exceptionr r r" r) r* r, r+ r1 r; r> rB rN �TextrO r^ rc re rn rs ru ry rz r~ r� r� r r r r �<module> s<
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