Node(3pm) User Contributed Perl Documentation Node(3pm)NAME
XML::Node - Node-based XML parsing: an simplified interface to XML::Parser
SYNOPSIS
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 );
DESCRIPTION
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 node 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);
Abosolute path trigger condition is recommended because a "Name" tage could appear in different places and stands for differe 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.
EXAMPLE
Examples "test.pl" and "parse_orders.pl" come with this perl module.
SEE ALSO
XML::Parser
NOTE
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.
AUTHORS
Chang Liu <liu@ics.uci.edu>
LAST MODIFIED
$Date: 2001/12/10 11:38:28 $
perl v5.10.0 2001-12-11 Node(3pm)
