Perl

XML Sort by Tag

See more XML Examples

Demonstrates the SortByTag method.

The input XML, available at http://www.chilkatsoft.com/data/fruitSort1.xml, is this:

<root>
    <fruits>
        <apple>
            <fuji>blah</fuji>
            <gala>blah</gala>
            <grannySmith>blah</grannySmith>
            <honeycrisp>blah</honeycrisp>
            <mcIntosh>blah</mcIntosh>
        </apple>
        <banana>blah</banana>
        <blackberry>blah</blackberry>
        <blueberry>blah</blueberry>
        <orange>blah</orange>
        <pear>blah</pear>
    </fruits>
</root>

Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

my $xml = Chilkat2::Xml->new;

# The sample input XML is available at http://www.chilkatsoft.com/data/fruitSort1.xml
my $success = $xml->LoadXmlFile('fruitSort1.xml');
if (!$success) {
    print $xml->LastErrorText, "\n";
    exit;
}

# Sort the direct children under the "fruits" node by tag:
my $xSortRoot = $xml->FindChild('fruits');

# Sort in ascending order.
my $bAscending = 1;
$xSortRoot->SortByTag($bAscending);

# Show the result:
print $xml->GetXml(), "\n";

# <root>
#     <fruits>
#         <apple>
#             <grannySmith>blah</grannySmith>
#             <gala>blah</gala>
#             <fuji>blah</fuji>
#             <mcIntosh>blah</mcIntosh>
#             <honeycrisp>blah</honeycrisp>
#         </apple>
#         <banana>blah</banana>
#         <blackberry>blah</blackberry>
#         <blueberry>blah</blueberry>
#         <orange>blah</orange>
#         <pear>blah</pear>
#     </fruits>
# </root>

# Sort the direct children under the "apple" node:
$success = $xSortRoot->FindChild2('apple');

$xSortRoot->SortByTag($bAscending);
print $xml->GetXml(), "\n";

# <root>
#     <fruits>
#         <apple>
#             <fuji>blah</fuji>
#             <gala>blah</gala>
#             <grannySmith>blah</grannySmith>
#             <honeycrisp>blah</honeycrisp>
#             <mcIntosh>blah</mcIntosh>
#         </apple>
#         <banana>blah</banana>
#         <blackberry>blah</blackberry>
#         <blueberry>blah</blueberry>
#         <orange>blah</orange>
#         <pear>blah</pear>
#     </fruits>
# </root>