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SAX driver for the pyexpat C module. This driver works with
pyexpat.__version__ == '2.22'.
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� ExpatLocatorz�Locator 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)N)r �_ref)�self�parserr r r �__init__9 s zExpatLocator.__init__c C s& | j } | j d k r d S| j j S)N)r �_parser�ErrorColumnNumber)r r r r r �getColumnNumber< s z ExpatLocator.getColumnNumberc C s& | j } | j d k r d S| j j S)N� )r r �ErrorLineNumber)r r r r r �
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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 d0 d1 � Z d2 d3 � Z d4 d5 � Z d6 d7 � Z d8 d9 � Z d: d; � Z d< d= � Z d> d? � Z d@ dA � Z! dB S)E� ExpatParserz$SAX driver for the pyexpat C module.r � � � c C se t j j | | � t j � | _ d | _ | | _ d | _ d | _ g | _ d | _
d | _ d S)Nr r" ) r �IncrementalParserr Z InputSourcer% r � _namespaces�_lex_handler_prop�_parsing�
_entity_stack�
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_interning)r ZnamespaceHandling�bufsizer r r r Z s zExpatParser.__init__c C sO t j | � } | | _ | j � | j j t | � � t j j | | � d S)z3Parse an XML document from a URL or an InputSource.N)
r �prepare_input_sourcer% �reset�
_cont_handlerZsetDocumentLocatorr r r- �parse)r �sourcer r r r8 g s
zExpatParser.parsec C s/ | j � d k r+ | j j | j � � n d S)N)r' r ZSetBase)r r9 r r r �
prepareParserp s zExpatParser.prepareParserc C s- t j j | | � | j r) | j � n d S)N)r r- �setContentHandlerr0 �_reset_cont_handler)r r r r r r; v s z ExpatParser.setContentHandlerc C sl | t k r | j S| t k r, | j d k S| t t t f k rE d S| t k rX | j St d | � � d S)Nr zFeature '%s' not recognized)
r r. r r3 r r r r r2 �SAXNotRecognizedException)r �namer r r �
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k r� | r t d � � q 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 prefixeszFeature '%s' not recognized) r0 �SAXNotSupportedExceptionr r. r r2 r r3 r r r r= )r r> �stater r r �
setFeature� s2 zExpatParser.setFeaturec C s� | t j k r | j S| t k r) | j S| t k r{ | j rl t | j d � r] | j j � St d � � q{ t
d � � n t d | � � d S)N�GetInputContextz=This version of expat does not support getting the XML stringz.XML string cannot be returned when not parsingz Property '%s' not recognized) r �property_lexical_handlerr/ r
r3 r r �hasattrrC r= r@ )r r> r r r � getProperty� s
zExpatParser.getPropertyc C s| | t j k r1 | | _ | j rx | j � qx nG | t k rI | | _ n/ | t k rh t d | � � n t d | � � d S)NzProperty '%s' cannot be setz Property '%s' not recognized)
r rD r/ r0 �_reset_lex_handler_propr
r3 r r@ r= )r r> �valuer r r � setProperty� s
zExpatParser.setPropertyc C s� | j s, | j � d | _ | j j � n y | j j | | � WnV t j k
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fatalError)r �data�isFinal�e�excr r r �feed� s
zExpatParser.feedc C s� | j s* | j d k s* t | j t � r. d Sz6 | j d d d �| j j � d | _ d | _ Wd d | _ | j d k r� t � } | j j | _ | j j | _ | | _ n | j
j � } | d k r� | j � n Xd S)N� rM r" r )
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charactersZCharacterDataHandler)r r r r r< � s z ExpatParser._reset_cont_handlerc C s� | j } | j } | d k rN d | _ d | _ d | _ d | _ d | _ n< | j | _ | j | _ | j | _ | j
| _ | j | _ d S)N) r/ r ZCommentHandlerZStartCdataSectionHandlerZEndCdataSectionHandlerZStartDoctypeDeclHandlerZEndDoctypeDeclHandlerZcommentZ
startCDATAZendCDATA�start_doctype_declZendDTD)r Zlexr r r r rG � s z#ExpatParser._reset_lex_handler_propc C sd | j r] t j | j j � d d | j �| _ d | j _ | j | j _ | j
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r:Yn X| j j t j � d | _! g | _" d S)N� �internr" r )#r. r
r r% Z getEncodingr3 r Znamespace_prefixes�start_element_nsZStartElementHandler�end_element_nsZEndElementHandler�
start_element� end_elementr< �unparsed_entity_declZUnparsedEntityDeclHandler�
notation_declZNotationDeclHandler�start_namespace_declZStartNamespaceDeclHandler�end_namespace_declZEndNamespaceDeclHandlerZ_decl_handler_propr/ rG �external_entity_refZExternalEntityRefHandler�skipped_entity_handlerZSkippedEntityHandler�AttributeErrorZSetParamEntityParsingZ*XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONEr0 r1 )r r r r r6 s6
zExpatParser.resetc C s | j d k r d S| j j S)N)r r )r r r r r! + s zExpatParser.getColumnNumberc C s | j d k r d S| j j S)Nr" )r r# )r r r r r$ 0 s zExpatParser.getLineNumberc C s
| j j � S)N)r% r& )r r r r r& 5 s zExpatParser.getPublicIdc C s
| j j � S)N)r% r' )r r r r r' 8 s zExpatParser.getSystemIdc C s | j j | t | � � d S)N)r7 Z startElement�AttributesImpl)r r> �attrsr r r r[ < s zExpatParser.start_elementc C s | j j | � d S)N)r7 Z
endElement)r r> r r r r\ ? s zExpatParser.end_elementc C sL | j � } t | � d k r- d | f } n5 t | � d k rV | d | d f } n t | � } i } i } x� | j � D]� \ } } | j � } t | � } | d k r� | }
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| | <q{ W| j j | d t | | � � d S)Nr" � r z%s:%sr* )�split�len�tuple�itemsr7 ZstartElementNS�AttributesNSImpl) r r> re �pairZnewattrsZqnamesZanamerH �partsZlengthZqnameZapairr r r rY B s.
z ExpatParser.start_element_nsc C sy | j � } t | � d k r- d | f } n5 t | � d k rV | d | d f } n t | � } | j j | d � d S)Nr" rf r )rg rh ri r7 Z endElementNS)r r> rl r r r rZ d s zExpatParser.end_element_nsc C s | j j | | � d S)N)r7 rT )r �targetrL r r r �processing_instructionp s z"ExpatParser.processing_instructionc C s | j j | � d S)N)r7 rU )r rL r r r �character_datat s zExpatParser.character_datac C s | j j | | � d S)N)r7 ZstartPrefixMapping)r �prefixZurir r r r_ w s z ExpatParser.start_namespace_declc C s | j j | � d S)N)r7 ZendPrefixMapping)r rq r r r r` z s z ExpatParser.end_namespace_declc C s | j j | | | � d S)N)r/ ZstartDTD)r r> �sysid�pubidZhas_internal_subsetr r r rV } s z ExpatParser.start_doctype_declc C s | j j | | | | � d S)N)� _dtd_handlerZunparsedEntityDecl)r r> �baserr rs Z
notation_namer r r r] � s z ExpatParser.unparsed_entity_declc C s | j j | | | � d S)N)rt Z notationDecl)r r> ru rr rs r r r r^ � s zExpatParser.notation_declc C s� | j s
d S| j j | | � } t j | | j j � p= d � } | j j | j | j f � | j j
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resolveEntityr r5 r% r' r1 �appendr ZExternalEntityParserCreater r- r8 )r �contextru rr rs r9 r r r ra � s
z ExpatParser.external_entity_refc C s' | r d | } n | j j | � d S)N�%)r7 Z
skippedEntity)r r> Zis_per r r rb � s
z"ExpatParser.skipped_entity_handlerNi i� )"r r r r( r r8 r: r; r? rB rF rI rP rS r< rG r6 r! r$ r& r' r[ r\ rY rZ ro rp r_ r` rV r] r^ ra rb r r r r r) W s>
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t | | � S)N)r) )�args�kwargsr r r �
create_parser� s r| �__main__z:http://www.ibiblio.org/xml/examples/shakespeare/hamlet.xml)-r( �versionZxml.sax._exceptionsZxml.sax.handlerr r r r r r r r
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