U
    `X=                     @   s  d Z dZddlT ddlmZmZ ddlmZ ddlmZmZ ddlm	Z	 ddlm
Z
mZ dd	lZejd	d
 dkr|edd	[zddlmZ W n ek
r   edd	Y nX eedsedd	ddlmZmZmZ ejZejZzdd	lZW n ek
r   dd ZY nX dd	lZejZ[[G dd dZG dd dejZG dd dej ejZ!dd Z"e#dkrdd	l$Z%e" Z&e&'e%j(j)  e&*e%j(+  e&,d d	S )z]
SAX driver for the pyexpat C module.  This driver works with
pyexpat.__version__ == '2.22'.
z0.20    )*)feature_validationfeature_namespaces)feature_namespace_prefixes)feature_external_gesfeature_external_pes)feature_string_interning)property_xml_stringproperty_interning_dictN   Zjavazexpat not available in Java)expatzexpat not supportedParserCreate)	xmlreadersaxutilshandlerc                 C   s   | S N )or   r   )/usr/lib/python3.8/xml/sax/expatreader.py_mkproxy'   s    r   c                   @   s   e Zd ZdS )_ClosedParserN)__name__
__module____qualname__r   r   r   r   r   .   s   r   c                   @   s8   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d ZdS )ExpatLocatorzLocator for use with the ExpatParser class.

    This uses a weak reference to the parser object to avoid creating
    a circular reference between the parser and the content handler.
    c                 C   s   t || _d S r   )r   _refselfparserr   r   r   __init__9   s    zExpatLocator.__init__c                 C   s   | j }|jd krd S |jjS r   )r   _parserErrorColumnNumberr   r   r   r   getColumnNumber<   s    
zExpatLocator.getColumnNumberc                 C   s   | j }|jd krdS |jjS N   )r   r    ErrorLineNumberr   r   r   r   getLineNumberB   s    
zExpatLocator.getLineNumberc                 C   s   | j }|d krd S |j S r   )r   _sourcegetPublicIdr   r   r   r   r(   H   s    zExpatLocator.getPublicIdc                 C   s   | j }|d krd S |j S r   )r   r'   getSystemIdr   r   r   r   r)   N   s    zExpatLocator.getSystemIdN)	r   r   r   __doc__r   r"   r&   r(   r)   r   r   r   r   r   3   s   r   c                   @   s  e Zd ZdZdCddZdd Zdd	 Zd
d Zdd Zdd Z	dd Z
dd ZdDddZdd Zdd Zdd Zdd Zdd Zd d! Zd"d# Zd$d% Zd&d' Zd(d) Zd*d+ Zd,d- Zd.d/ Zd0d1 Zd2d3 Zd4d5 Zd6d7 Zd8d9 Zd:d; Zd<d= Z d>d? Z!d@dA Z"dBS )EExpatParserz$SAX driver for the pyexpat C module.r     c                 C   sF   t j| | t  | _d | _|| _d | _d| _g | _	d| _
d | _d S )Nr   )r   IncrementalParserr   ZInputSourcer'   r    _namespaces_lex_handler_prop_parsing_entity_stack_external_ges
_interning)r   ZnamespaceHandlingbufsizer   r   r   r   Z   s    
zExpatParser.__init__c                 C   sV   t |}|| _z*|   | jt|  tj	| | W n   | 
   Y nX dS )z3Parse an XML document from a URL or an InputSource.N)r   prepare_input_sourcer'   reset_cont_handlerZsetDocumentLocatorr   r   r-   parse_close_sourcer   sourcer   r   r   r8   g   s    
zExpatParser.parsec                 C   s    |  d k	r| j|   d S r   )r)   r    ZSetBaser:   r   r   r   prepareParserw   s    zExpatParser.prepareParserc                 C   s    t j| | | jr|   d S r   )r   r-   setContentHandlerr0   _reset_cont_handler)r   r   r   r   r   r=   }   s    zExpatParser.setContentHandlerc                 C   sP   |t kr| jS |tkr | jd k	S |tttfkr2dS |tkr@| jS t	d| d S )Nr   Feature '%s' not recognized)
r   r.   r   r3   r   r   r   r   r2   SAXNotRecognizedExceptionr   namer   r   r   
getFeature   s    
zExpatParser.getFeaturec                 C   s   | j rtd|tkr|| _n|tkr.|| _nt|tkrT|rL| jd krRi | _qd | _nN|tkrj|rtdn8|t	kr|rtdn"|t
kr|rtdntd| d S )Nz!Cannot set features while parsingz!expat does not support validationz/expat does not read external parameter entitiesz(expat does not report namespace prefixesr?   )r0   SAXNotSupportedExceptionr   r.   r   r2   r   r3   r   r   r   r@   )r   rB   stater   r   r   
setFeature   s:    
zExpatParser.setFeaturec                 C   sd   |t jkr| jS |tkr| jS |tkrT| jrLt| jdrB| j S t	dnt
dt	d| d S )NGetInputContextz=This version of expat does not support getting the XML stringz.XML string cannot be returned when not parsingProperty '%s' not recognized)r   property_lexical_handlerr/   r
   r3   r	   r    hasattrrG   r@   rD   rA   r   r   r   getProperty   s    

zExpatParser.getPropertyc                 C   sV   |t jkr || _| jrR|   n2|tkr0|| _n"|tkrFtd| nt	d| d S )NzProperty '%s' cannot be setrH   )
r   rI   r/   r0   _reset_lex_handler_propr
   r3   r	   rD   r@   )r   rB   valuer   r   r   setProperty   s    

zExpatParser.setPropertyc              
   C   sz   | j s|   d| _ | j  z| j|| W nD tjk
rt } z$tt	|j
|| }| j| W 5 d }~X Y nX d S r#   )r0   r6   r7   ZstartDocumentr    ZParser   errorZSAXParseExceptionZErrorStringcodeZ_err_handlerZ
fatalError)r   dataisFinaleexcr   r   r   feed   s    
zExpatParser.feedc                 C   sB   | j }z| }|d k	r |  W 5 | }|d k	r<|  X d S r   )r'   ZgetByteStreamcloseZgetCharacterStream)r   r;   filer   r   r   r9      s    zExpatParser._close_sourcec                 C   s   | j s| jd kst| jtr d S z(| jddd | j	
  d| _d | _W 5 d| _| jd k	rzt }| jj|_| jj|_|| _|   X d S )Nr    r$   )rR   )r1   r    
isinstancer   r0   r!   r%   r9   rU   r7   ZendDocumentr   r   r   r   rV      s     





zExpatParser.closec                 C   s   | j j| j_| j j| j_d S r   )r7   processingInstructionr    ZProcessingInstructionHandler
charactersZCharacterDataHandlerr   r   r   r   r>      s    zExpatParser._reset_cont_handlerc                 C   s`   | j }| j}|d kr4d |_d |_d |_d |_d |_n(|j|_|j|_|j	|_| j
|_|j|_d S r   )r/   r    ZCommentHandlerZStartCdataSectionHandlerZEndCdataSectionHandlerZStartDoctypeDeclHandlerZEndDoctypeDeclHandlerZcommentZ
startCDATAZendCDATAstart_doctype_declZendDTD)r   Zlexr   r   r   r   rL     s    z#ExpatParser._reset_lex_handler_propc                 C   s   | j r>tj| j d| jd| _d| j_| j| j_	| j
| j_n,tj| j | jd| _| j| j_	| j| j_|   | j| j_| j| j_| j| j_| j| j_d | _| jr|   | j| j_z| j| j_W n tk
r   Y nX | jtj  d| _!g | _"d S )N )internr$   r   )#r.   r   r   r'   ZgetEncodingr3   r    Znamespace_prefixesstart_element_nsZStartElementHandlerend_element_nsZEndElementHandlerstart_elementend_elementr>   unparsed_entity_declZUnparsedEntityDeclHandlernotation_declZNotationDeclHandlerstart_namespace_declZStartNamespaceDeclHandlerend_namespace_declZEndNamespaceDeclHandlerZ_decl_handler_propr/   rL   external_entity_refZExternalEntityRefHandlerskipped_entity_handlerZSkippedEntityHandlerAttributeErrorZSetParamEntityParsingZ*XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONEr0   r1   r\   r   r   r   r6     s<    







zExpatParser.resetc                 C   s   | j d krd S | j jS r   )r    r!   r\   r   r   r   r"   ;  s    
zExpatParser.getColumnNumberc                 C   s   | j d krdS | j jS r#   )r    r%   r\   r   r   r   r&   @  s    
zExpatParser.getLineNumberc                 C   s
   | j  S r   )r'   r(   r\   r   r   r   r(   E  s    zExpatParser.getPublicIdc                 C   s
   | j  S r   )r'   r)   r\   r   r   r   r)   H  s    zExpatParser.getSystemIdc                 C   s   | j |t| d S r   )r7   ZstartElementAttributesImpl)r   rB   attrsr   r   r   rb   L  s    zExpatParser.start_elementc                 C   s   | j | d S r   )r7   Z
endElementrA   r   r   r   rc   O  s    zExpatParser.end_elementc                 C   s   |  }t|dkrd |f}n&t|dkr<|d |d f}nt|}i }i }| D ]|\}}|  }t|}	|	dkr|}
d |f}n>|	dkrd|d |d f }
|d |d f}n|d }
t|}|||< |
||< qT| j|d t|| d S )Nr$      r   z%s:%s   )splitlentupleitemsr7   ZstartElementNSAttributesNSImpl)r   rB   rl   pairZnewattrsZqnamesZanamerM   partsZlengthZqnameZapairr   r   r   r`   R  s0    



zExpatParser.start_element_nsc                 C   sV   |  }t|dkrd |f}n&t|dkr<|d |d f}nt|}| j|d  d S )Nr$   rm   r   )ro   rp   rq   r7   ZendElementNS)r   rB   rt   r   r   r   ra   t  s    
zExpatParser.end_element_nsc                 C   s   | j || d S r   )r7   rZ   )r   targetrQ   r   r   r   processing_instruction  s    z"ExpatParser.processing_instructionc                 C   s   | j | d S r   )r7   r[   )r   rQ   r   r   r   character_data  s    zExpatParser.character_datac                 C   s   | j || d S r   )r7   ZstartPrefixMapping)r   prefixZurir   r   r   rf     s    z ExpatParser.start_namespace_declc                 C   s   | j | d S r   )r7   ZendPrefixMapping)r   ry   r   r   r   rg     s    zExpatParser.end_namespace_declc                 C   s   | j ||| d S r   )r/   ZstartDTD)r   rB   sysidpubidZhas_internal_subsetr   r   r   r]     s    zExpatParser.start_doctype_declc                 C   s   | j |||| d S r   )_dtd_handlerZunparsedEntityDecl)r   rB   baserz   r{   Znotation_namer   r   r   rd     s    z ExpatParser.unparsed_entity_declc                 C   s   | j ||| d S r   )r|   ZnotationDecl)r   rB   r}   rz   r{   r   r   r   re     s    zExpatParser.notation_declc                 C   s   | j s
dS | j||}t|| j p*d}| j| j	| jf | j	
|| _	|| _ztj| | W n   Y dS X | jd \| _	| _| jd= dS )Nr$   rX   r   )r2   Z_ent_handlerZresolveEntityr   r5   r'   r)   r1   appendr    ZExternalEntityParserCreater   r-   r8   )r   contextr}   rz   r{   r;   r   r   r   rh     s"    
zExpatParser.external_entity_refc                 C   s   |rd| }| j | d S )N%)r7   ZskippedEntity)r   rB   Zis_per   r   r   ri     s    z"ExpatParser.skipped_entity_handlerN)r   r,   )r   )#r   r   r   r*   r   r8   r<   r=   rC   rF   rK   rN   rU   r9   rV   r>   rL   r6   r"   r&   r(   r)   rb   rc   r`   ra   rw   rx   rf   rg   r]   rd   re   rh   ri   r   r   r   r   r+   W   s@   

'"r+   c                  O   s
   t | |S r   )r+   )argskwargsr   r   r   create_parser  s    r   __main__z:http://www.ibiblio.org/xml/examples/shakespeare/hamlet.xml)-r*   versionZxml.sax._exceptionsZxml.sax.handlerr   r   r   r   r   r   r	   r
   sysplatformZSAXReaderNotAvailableZxml.parsersr   ImportErrorrJ   Zxml.saxr   r   r   rk   rs   _weakrefr   weakrefproxyr   ZLocatorr   r-   r+   r   r   Zxml.sax.saxutilsZxmlpr=   ZsaxZXMLGeneratorZsetErrorHandlerZErrorHandlerr8   r   r   r   r   <module>   sN   


$  _
