XML::Node - Node-based XML parsing: a simplified interface to XML::Parser

       Chang Liu <liu@ics.uci.edu>

       If you are only interested in processing certain nodes in an XML file, this module can help you simplify
       your Perl scripts significantly.

       The XML::Node module allows you to register callback functions or variables for any  XML node. If you
       register a call back function, it will be called when the nodes of the type you specified are
       encountered. If you register a variable, the content of a XML node will be appended to that variable
       automatically.

       Subroutine register accepts both absolute and relative node registrations.

       Here is an example of absolute path registration:

        1. register(">TestCase>Name", "start" => \&handle_TestCase_Name_start);

       Here are examples of single node name registration:

        2. register( "Name", "start" => \&handle_Name_start);
        3. register( "Name", "end"   => \&handle_Name_end);
        4. register( "Name", "char"  => \&handle_Name_char);

       Here is an example of attribute registration:

        5. register(">TestCase:Author", "attr" => \$testcase_author);

       Absolute path trigger condition is recommended because a "Name" tag could appear in different places and
       stands for different names.

       Example:

         1  <Testcase>
         2     <Name>Something</Name>
         3     <Oracle>
         4         <Name>Something</Name>
         5     </Oracle>
         6  </Testcase>

       Statement 1 causes &handle_TestCase_Name_start to be called when parsing Line 2. Statements 2,3,4 cause
       the three handler subroutines to be called when parsing both Line 2 and Line 4.

       This module uses XML::Parser.

       Examples "test.pl" and "parse_orders.pl" come with this perl module.

       $Date: 2001/12/10 11:38:28 $

perl v5.36.0                                       2022-11-19                                          Node(3pm)

       XML::Node - Node-based XML parsing: a simplified interface to XML::Parser

       When you register a variable, XML::Node appends strings found to that variable. So please be sure to
       clear that variable before it is used again.

       XML::Parser

        use XML::Node;

        $xml_node = new XML::Node;
        $xml_node->register( $nodetype, $callback_type => \&callback_function );
        $xml_node->register( $nodetype, $callback_type => \$variable );

        open(FOO, 'xmlgenerator |');
        $p3->parse(*FOO);
        close(FOO);

        $xml_node->parsefile( $xml_filename );