XML::Application::Config is a perl module for handling XML based configuration files.

Examples:

.myApplication.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Stand: Fri Mar 16 13:36:58 CET 2012 -->
<applicationconfig version="0.2">
           <application name="myApplication">
                        <hostname value="myHost.example.org" />
                        <auth>
                                <login    value="johndoe"/>
                                <password value="secret"/>
                        </auth>
                        <optionlist>
                                <option name="o1" value="I" />
                                <option name="o2" value="II" />
                                <option name="o3" value="III" />
                        </optionlist>
           </application>
</applicationconfig>

example.pl

#!/usr/bin/perl
 
use strict; 
use XML::Application::Config;
use Data::Dumper;
 
my $xmlfilename = $ENV{HOME}."/.myApplication.xml";
 
my $cfg    = XML::Application::Config->new("myApplication",$xmlfilename);
my $login  = $cfg->find('auth/login/@value');
my $passwd = $cfg->find('auth/password/@value');
 
my $optionscount  = $cfg->find("count(optionlist/option)");
 
print "Options(#): '$optionscount'\n";
 
for (my $i=1; $i <= $optionscount; $i++) {
        my $name  = $cfg->find("optionlist/option[$i]/\@name");
        my $value = $cfg->find("optionlist/option[$i]/\@value");
        $options->{$name} = $value;
        print "    Option $i: '$name'='$value'\n";
}
 
print Dumper($options);

• Replace XML::XPath by XML::LibXML2 (2015-02-23)
• The <include/> statement allows only for including stuff from the same <application> namespace. Sometimes access to arbitarary config trees of another application would be nice. Thinking about <import/> or similar. (2015-02-23)
• Some variable replacement mechanism. Like <basedir value=”/var/lib/app”/> and <workdir value=“${basedir}/work”/> . Testcode currently runs in mkrepo. (2015-02-23)
• Hierarchical config file processing: /etc/<app> first, ~/.<app> next, ./.<app> each overriding the settings from its predecessors.
• ~ - expansion for xml-cfg-filename in new() would be nice (2015-09-10)

• The .deb-package lacks the dependency of libxml-xpath-perl (2015-02-23) (fixed in 0.2.3.2)
• manpage: missing like break in SYNOPSIS, (fixed in 0.2.3.2)
• manpage: broken constructor call in SYNOPSIS (fixed in 0.2.3.2)
• manpage: xpaths with leading / in SYNOPSIS (fixed in 0.2.3.2)
• manpage: ~ - expansion is suggested, change examples to $ENV{HOME} (fixed in 0.2.3.2)