Node(3pm)

🦋 Node(3pm) — XML::Node 🦋

okay bestie, this is the XML::Node page from the User Contributed Perl Documentation — it lives in section 3pm of the manual, and it's literally the cutest lil shortcut for pulling stuff out of XML files. no cap. 💖

---

✨ NAME ✨

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

yes, it's giving "XML but make it chill". 💅

---

🌸 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 );

look at her. so clean. so simple. she ate fr fr. ✨

---

💜 DESCRIPTION 💜

So like, if you're only interested in processing certain nodes in an XML file? this module is your bestie. It can help you simplify your Perl scripts significantly. lowkey a game changer.

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. automatic?? we love her for that. 🫶

Subroutine register accepts both absolute and relative node registrations. both!! okay versatile queen 👑

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);

⚠️ real talk bestie: the absolute path trigger condition is recommended, because a "Name" tag could appear in different places and stands for different names. so like, specify your path or you'll get surprise callbacks. 🙈

Example:

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

So here's the tea 🍵: 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. see how it's not the same thing? iykyk.

This module uses XML::Parser. 💫

---

🌈 EXAMPLE 🌈

Examples "test.pl" and "parse_orders.pl" come with this perl module. free samples, bestie!! go look at them!! 🎀

---

👀 SEE ALSO 👀

• XML::Parser — the icon she's built on top of ✨

---

⭐ 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.

not me forgetting to clear my variable… 💀 like, it appends, bestie, it does not replace. clear it or you'll be reading last run's leftovers. periodt. 💅

---

👑 AUTHORS 👑

Chang Liu <liu@ics.uci.edu>

---

🎀 LAST MODIFIED 🎀

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

---

and that's the whole page!! 🦋🌸

this little love letter to node-based XML parsing is served up by perl v5.36.0, dated 2022-11-19, and it's page Node(3pm) in the User Contributed Perl Documentation. mwah. 😘💖 go parse something cute. ✨