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How to get the number of bytes parsed in libxml2

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# 1  
Old 08-12-2011
How to get the number of bytes parsed in libxml2
Hi,


I am using the libxml2 sax parser to parse a in memory xml string along with validating it against a schema.


I am using the following code:


xmlSAXHandlerPtr sax_ = new xmlSAXHandler();
sax_->initialized = XML_SAX2_MAGIC;
sax_->startElementNs = this->saxStart;
sax_->endElementNs = this->saxEnd;
sax_->characters = this->saxValue;


xmlParserCtxtPtr inputPtr_ = xmlCreateMemoryParserCtxt(msgBuf,

msgSize);//msgBuf is the in memory xml

//string
ret = xmlSchemaValidateStream(schemaCtxt_, inputPtr_->input->buf,

XML_CHAR_ENCODING_NONE, sax_, this);



I am using

size_t parsedBytes = xmlByteConsumed(inputPtr_);


The validation and parsing is happening just fine but when i get the parsedBytes it always return 0.



Thanks,
Sam Krishna
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LEARN ABOUT OSX

xml::libxml::schema

XML::LibXML::Schema(3)					User Contributed Perl Documentation				    XML::LibXML::Schema(3)

NAME

       XML::LibXML::Schema - XML Schema Validation

SYNOPSIS

	 use XML::LibXML;
	 $doc = XML::LibXML->new->parse_file($url);

	 $xmlschema = XML::LibXML::Schema->new( location => $filename_or_url );
	 $xmlschema = XML::LibXML::Schema->new( string => $xmlschemastring );
	 eval { $xmlschema->validate( $doc ); };

DESCRIPTION

       The XML::LibXML::Schema class is a tiny frontend to libxml2's XML Schema implementation. Currently it supports only schema parsing and
       document validation. As of 2.6.32, libxml2 only supports decimal types up to 24 digits (the standard requires at least 18).

METHODS

       new
	     $xmlschema = XML::LibXML::Schema->new( location => $filename_or_url );
	     $xmlschema = XML::LibXML::Schema->new( string => $xmlschemastring );

	   The constructor of XML::LibXML::Schema may get called with either one of two parameters. The parameter tells the class from which
	   source it should generate a validation schema. It is important, that each schema only have a single source.

	   The location parameter allows to parse a schema from the filesystem or a URL.

	   The string parameter will parse the schema from the given XML string.

	   Note that the constructor will die() if the schema does not meed the constraints of the XML Schema specification.

       validate
	     eval { $xmlschema->validate( $doc ); };

	   This function allows to validate a (parsed) document against the given XML Schema. The argument of this function should be a
	   XML::LibXML::Document object. If this function succeeds, it will return 0, otherwise it will die() and report the errors found. Because
	   of this validate() should be always evaluated.

AUTHORS

       Matt Sergeant, Christian Glahn, Petr Pajas

VERSION

       2.0008

COPYRIGHT

       2001-2007, AxKit.com Ltd.

       2002-2006, Christian Glahn.

       2006-2009, Petr Pajas.

perl v5.16.2							    2012-10-22						    XML::LibXML::Schema(3)