xml::handler::builddom(3) [redhat man page]

XML::Handler::BuildDOM(3)				User Contributed Perl Documentation				 XML::Handler::BuildDOM(3)

NAME

       XML::Handler::BuildDOM - PerlSAX handler that creates XML::DOM document structures

SYNOPSIS

	use XML::Handler::BuildDOM;
	use XML::Parser::PerlSAX;

	my $handler = new XML::Handler::BuildDOM (KeepCDATA => 1);
	my $parser = new XML::Parser::PerlSAX (Handler => $handler);

	my $doc = $parser->parsefile ("file.xml");

DESCRIPTION

       XML::Handler::BuildDOM creates XML::DOM document structures (i.e. XML::DOM::Document) from PerlSAX events.

       This class used to be called XML::PerlSAX::DOM prior to libxml-enno 1.0.1.

       CONSTRUCTOR OPTIONS

       The XML::Handler::BuildDOM constructor supports the following options:

       o KeepCDATA => 1
	   If set to 0 (default), CDATASections will be converted to regular text.

       o Document => $doc
	   If undefined, start_document will extract it from Element or DocType (if set), otherwise it will create a new XML::DOM::Document.

       o Element => $elem
	   If undefined, it is set to Document. This will be the insertion point (or parent) for the nodes defined by the following callbacks.

       o DocType => $doctype
	   If undefined, start_document will extract it from Document (if possible).  Otherwise it adds a new XML::DOM::DocumentType to the Docu-
	   ment.

perl v5.8.0							    2000-02-11						 XML::Handler::BuildDOM(3)

SAXT(3pm)						User Contributed Perl Documentation						 SAXT(3pm)

NAME

       XML::Filter::SAXT - Replicates SAX events to several SAX event handlers

SYNOPSIS

	$saxt = new XML::Filter::SAXT ( { Handler => $out1 },
					{ DocumentHandler => $out2 },
					{ DTDHandler => $out3,
					  Handler => $out4
					}
				      );

	$perlsax = new XML::Parser::PerlSAX ( Handler => $saxt );
	$perlsax->parse ( [OPTIONS] );

DESCRIPTION

       SAXT is like the Unix 'tee' command in that it multiplexes the input stream to several output streams. In this case, the input stream is a
       PerlSAX event producer (like XML::Parser::PerlSAX) and the output streams are PerlSAX handlers or filters.

       The SAXT constructor takes a list of hash references. Each hash specifies an output handler. The hash keys can be: DocumentHandler,
       DTDHandler, EntityResolver or Handler, where Handler is a combination of the previous three and acts as the default handler.  E.g. if
       DocumentHandler is not specified, it will try to use Handler.

   EXAMPLE
       In this example we use XML::Parser::PerlSAX to parse an XML file and to invoke the PerlSAX callbacks of our SAXT object. The SAXT object
       then forwards the callbacks to XML::Checker, which will 'die' if it encounters an error, and to XML::Handler::BuildDOM, which will store
       the XML in an XML::DOM::Document.

	use XML::Parser::PerlSAX;
	use XML::Filter::SAXT;
	use XML::Handler::BuildDOM;
	use XML::Checker;

	my $checker = new XML::Checker;
	my $builder = new XML::Handler::BuildDOM (KeepCDATA => 1);
	my $tee = new XML::Filter::SAXT ( { Handler => $checker },
					  { Handler => $builder } );

	my $parser = new XML::Parser::PerlSAX (Handler => $tee);
	eval
	{
	   # This is how you set the error handler for XML::Checker
	   local $XML::Checker::FAIL = &my_fail;

	   my $dom_document = $parser->parsefile ("file.xml");
	   ... your code here ...
	};
	if ($@)
	{
	   # Either XML::Parser::PerlSAX threw an exception (bad XML)
	   # or XML::Checker found an error and my_fail died.
	   ... your error handling code here ...
	}

	# XML::Checker error handler
	sub my_fail
	{
	  my $code = shift;
	  die XML::Checker::error_string ($code, @_)
	       if $code < 200;	 # warnings and info messages are >= 200
	}

CAVEATS

       This is still alpha software.  Package names and interfaces are subject to change.

AUTHOR

       Enno Dersken is the original author.

       Send bug reports, hints, tips, suggestions to T.J. Mather at <tjmather@tjmather.com>.

perl v5.10.1							    2001-09-03								 SAXT(3pm)