o
    fo=                     @   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yS   edd	w eeds^e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y   dd ZY n
w 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 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   javazexpat not available in Java)expatzexpat not supportedParserCreate)	xmlreadersaxutilshandlerc                 C   s   | S N )or   r   */usr/lib/python3.10/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      zExpatLocator.__init__c                 C   s   | j }|jd u r
d S |jjS r   )r   _parserErrorColumnNumberr   r   r   r   getColumnNumber<      
zExpatLocator.getColumnNumberc                 C   s   | j }|jd u r
dS |jjS N   )r   r"   ErrorLineNumberr   r   r   r   getLineNumberB   r%   zExpatLocator.getLineNumberc                 C      | j }|d u r	d S |j S r   )r   _sourcegetPublicIdr   r   r   r   r,   H      
zExpatLocator.getPublicIdc                 C   r*   r   )r   r+   getSystemIdr   r   r   r   r.   N   r-   zExpatLocator.getSystemIdN)	r   r   r   __doc__r    r$   r)   r,   r.   r   r   r   r   r   3   s    r   c                   @   s  e Zd ZdZdDddZdd Zdd	 Zd
d Zdd Zdd Z	dd Z
dd ZdEddZdd Zdd Zdd Zdd Zdd  Zd!d" Zd#d$ Zd%d& Zd'd( Zd)d* Zd+d, Zd-d. Zd/d0 Zd1d2 Zd3d4 Zd5d6 Zd7d8 Zd9d: Zd;d< Zd=d> Z d?d@ Z!dAdB Z"dCS )FExpatParserz$SAX driver for the pyexpat C module.r     c                 C   sF   t j| | t  | _d | _|| _d | _d| _g | _	d| _
d | _d S )NFr   )r   IncrementalParserr    InputSourcer+   r"   _namespaces_lex_handler_prop_parsing_entity_stack_external_ges
_interning)r   namespaceHandlingbufsizer   r   r   r    Z   s   

zExpatParser.__init__c                 C   sN   t |}|| _z|   | jt|  tj	| | W dS    | 
   )z3Parse an XML document from a URL or an InputSource.N)r   prepare_input_sourcer+   reset_cont_handlersetDocumentLocatorr   r   r2   parse_close_sourcer   sourcer   r   r   r@   g   s   
zExpatParser.parsec                 C   s$   |  d ur| j|   d S d S r   )r.   r"   SetBaserB   r   r   r   prepareParserw   s   zExpatParser.prepareParserc                 C   s$   t j| | | jr|   d S d S r   )r   r2   setContentHandlerr6   _reset_cont_handler)r   r   r   r   r   rF   }   s   zExpatParser.setContentHandlerc                 C   sL   |t kr| jS |tkr| jd uS |tttfv rdS |tkr | jS t	d| )Nr   Feature '%s' not recognized)
r   r4   r   r9   r   r   r   r   r8   SAXNotRecognizedExceptionr   namer   r   r   
getFeature   s   
zExpatParser.getFeaturec                 C   s   | j rtd|tkr|| _d S |tkr|| _d S |tkr0|r+| jd u r)i | _d S d S d | _d S |tkr<|r:tdd S |t	krH|rFtdd S |t
krT|rRtdd S td| )Nz!Cannot set features while parsingz!expat does not support validationz/expat does not read external parameter entitiesz(expat does not report namespace prefixesrH   )r6   SAXNotSupportedExceptionr   r4   r   r8   r   r9   r   r   r   rI   )r   rK   stater   r   r   
setFeature   sB   




zExpatParser.setFeaturec                 C   s^   |t jkr| jS |tkr| jS |tkr)| jr%t| jdr!| j S t	dt
dt	d| )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_handlerr5   r
   r9   r	   r"   hasattrrP   rI   rM   rJ   r   r   r   getProperty   s   

zExpatParser.getPropertyc                 C   sX   |t jkr|| _| jr|   d S d S |tkr|| _d S |tkr&td| t	d| )NzProperty '%s' cannot be setrQ   )
r   rR   r5   r6   _reset_lex_handler_propr
   r9   r	   rM   rI   )r   rK   valuer   r   r   setProperty   s   

zExpatParser.setPropertyFc              
   C   s|   | j s|   d| _ | j  z
| j|| W d S  tjy= } ztt	|j
|| }| j| W Y d }~d S d }~ww )NT)r6   r=   r>   startDocumentr"   Parser   errorSAXParseExceptionErrorStringcode_err_handler
fatalError)r   dataisFinaleexcr   r   r   feed   s   
zExpatParser.feedc                 C   s^   | j }z| }|d ur|  W | }|d ur|  d S d S | }|d ur.|  w w r   )r+   getCharacterStreamclosegetByteStream)r   rC   filer   r   r   rA      s   
zExpatParser._close_sourcec                 C   s   | j s| jd u st| jtrd S z1| jddd | j  d| _d | _W d| _| jd ur<t }| jj|_| jj	|_	|| _| 
  d S d| _| jd urZt }| jj|_| jj	|_	|| _| 
  w )N    T)ra   F)r7   r"   
isinstancer   rd   r>   endDocumentr6   r#   r(   rA   r   r   r   r   rf      s.   








zExpatParser.closec                 C   s   | j j| j_| j j| j_d S r   )r>   processingInstructionr"   ProcessingInstructionHandler
charactersCharacterDataHandlerr   r   r   r   rG      s   zExpatParser._reset_cont_handlerc                 C   sb   | j }| j}|d u rd |_d |_d |_d |_d |_d S |j|_|j|_|j	|_| j
|_|j|_d S r   )r5   r"   CommentHandlerStartCdataSectionHandlerEndCdataSectionHandlerStartDoctypeDeclHandlerEndDoctypeDeclHandlercomment
startCDATAendCDATAstart_doctype_declendDTD)r   lexr   r   r   r   rU     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rW|   | j| j_z| j| j_W n	 tyl   Y nw | jtj  d| _!g | _"d S )N )internr'   F)#r4   r   r   r+   getEncodingr9   r"   namespace_prefixesstart_element_nsStartElementHandlerend_element_nsEndElementHandlerstart_elementend_elementrG   unparsed_entity_declUnparsedEntityDeclHandlernotation_declNotationDeclHandlerstart_namespace_declStartNamespaceDeclHandlerend_namespace_declEndNamespaceDeclHandler_decl_handler_propr5   rU   external_entity_refExternalEntityRefHandlerskipped_entity_handlerSkippedEntityHandlerAttributeErrorSetParamEntityParsing*XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONEr6   r7   rp   r   r   r   r=     s>   








zExpatParser.resetc                 C   s   | j d u rd S | j jS r   )r"   r#   rp   r   r   r   r$   ;     
zExpatParser.getColumnNumberc                 C   s   | j d u rdS | j jS r&   )r"   r(   rp   r   r   r   r)   @  r   zExpatParser.getLineNumberc                 C   
   | j  S r   )r+   r,   rp   r   r   r   r,   E     
zExpatParser.getPublicIdc                 C   r   r   )r+   r.   rp   r   r   r   r.   H  r   zExpatParser.getSystemIdc                 C   s   | j |t| d S r   )r>   startElementAttributesImpl)r   rK   attrsr   r   r   r   L     zExpatParser.start_elementc                 C      | j | d S r   )r>   
endElementrJ   r   r   r   r   O     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rA|}
d |f}n|	dkrXd|d |d f }
|d |d f}n|d }
t|}|||< |
||< q*| j|d t|| d S )Nr'      r   z%s:%s   )splitlentupleitemsr>   startElementNSAttributesNSImpl)r   rK   r   pairnewattrsqnamesanamerV   partslengthqname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'   r   r   )r   r   r   r>   endElementNS)r   rK   r   r   r   r   r   t  s   
zExpatParser.end_element_nsc                 C      | j || d S r   )r>   rl   )r   targetr`   r   r   r   processing_instruction     z"ExpatParser.processing_instructionc                 C   r   r   )r>   rn   )r   r`   r   r   r   character_data  r   zExpatParser.character_datac                 C   r   r   )r>   startPrefixMapping)r   prefixurir   r   r   r     r   z ExpatParser.start_namespace_declc                 C   r   r   )r>   endPrefixMapping)r   r   r   r   r   r     r   zExpatParser.end_namespace_declc                 C   s   | j ||| d S r   )r5   startDTD)r   rK   sysidpubidhas_internal_subsetr   r   r   ry        zExpatParser.start_doctype_declc                 C   s   | j |||| d S r   )_dtd_handlerunparsedEntityDecl)r   rK   baser   r   notation_namer   r   r   r     r   z ExpatParser.unparsed_entity_declc                 C   s   | j ||| d S r   )r   notationDecl)r   rK   r   r   r   r   r   r   r     r   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 | jd \| _	| _| jd= dS )Nr'    r   )r8   _ent_handlerresolveEntityr   r<   r+   r.   r7   appendr"   ExternalEntityParserCreater   r2   r@   )r   contextr   r   r   rC   r   r   r   r     s"   
zExpatParser.external_entity_refc                 C   s   |rd| }| j | d S )N%)r>   skippedEntity)r   rK   is_per   r   r   r     s   z"ExpatParser.skipped_entity_handlerN)r   r1   )F)#r   r   r   r/   r    r@   rE   rF   rL   rO   rT   rW   rd   rA   rf   rG   rU   r=   r$   r)   r,   r.   r   r   r   r   r   r   r   r   ry   r   r   r   r   r   r   r   r   r0   W   sB    

'"r0   c                  O   s   t | i |S r   )r0   )argskwargsr   r   r   create_parser  r!   r   __main__z:http://www.ibiblio.org/xml/examples/shakespeare/hamlet.xml)-r/   versionxml.sax._exceptionsxml.sax.handlerr   r   r   r   r   r   r	   r
   sysplatformSAXReaderNotAvailablexml.parsersr   ImportErrorrS   xml.saxr   r   r   r   r   _weakrefr   weakrefproxyr   Locatorr   r2   r0   r   r   xml.sax.saxutilsxmlprF   saxXMLGeneratorsetErrorHandlerErrorHandlerr@   r   r   r   r   <module>   sV    



$  _