how to remove an empty line from a xml file??

ankit.tayal560 has asked for the wisdom of the Perl Monks concerning the following question:

use strict;
use warnings;
use Data::Dumper;
use XML::DOM;

my $parser=new XML::DOM::Parser;

my $doc=$parser->parsefile('C:\perl\perl_tests\xmlin2.xml') or die$!;
my $root=$doc->getDocumentElement();

my @address=$root->getElementsByTagName("address");
foreach my $address(@address)
{
    if($address->getAttribute("name") eq "Joey")
    {
        if(my $item=$address->getElementsByTagName("item")->item(0))
        {
            if(my $data=$item->getElementsByTagName("data")->item(0))
            {
            $item->removeChild($data);
            }
        }
    }
}    
$doc->setXMLDecl($doc->createXMLDecl('1.0','UTF-8'));
$doc->printToFile("C:/perl/perl_tests/xmlin2.xml");
$doc->dispose;




XML FILE ORIGINAL :

<?xml version="1.0" encoding="UTF-8"?>
<config logdir="var/log/foo/" debugfile="tmp/foo.debug">
<server name="sahara" osname="solaris" osversion="2.6">
<address name="ankit" id="70888"/>
<address name="Joey" id="67890" flags="4">
<item used="1" order="0">
<data typeid="4"/>
</item>
</address>
</server>
<server name="gobi" osname="irix" osversion="6.5">
<address name="anshul" id="70689"/>
</server>
<server name="kalahari" osname="linus" osversion="2.0.34">
<address name="raghu" id="45678"/>
<address name="lucky" id="67895"/>
</server>
</config>



XML FILE AFTER MODIFICATION:


<?xml version="1.0" encoding="UTF-8"?>
<config logdir="var/log/foo/" debugfile="tmp/foo.debug">
<server name="sahara" osname="solaris" osversion="2.6">
<address name="ankit" id="70888"/>
<address name="Joey" id="67890" flags="4">
<item used="1" order="0">

</item>
</address>
</server>
<server name="gobi" osname="irix" osversion="6.5">
<address name="anshul" id="70689"/>
</server>
<server name="kalahari" osname="linus" osversion="2.0.34">
<address name="raghu" id="45678"/>
<address name="lucky" id="67895"/>
</server>
</config>



IDEAL MODIFIED XML FILE SHOULD BE :


<?xml version="1.0" encoding="UTF-8"?>
<config logdir="var/log/foo/" debugfile="tmp/foo.debug">
<server name="sahara" osname="solaris" osversion="2.6">
<address name="ankit" id="70888"/>
<address name="Joey" id="67890" flags="4">
<item used="1" order="0">
</item>
</address>
</server>
<server name="gobi" osname="irix" osversion="6.5">
<address name="anshul" id="70689"/>
</server>
<server name="kalahari" osname="linus" osversion="2.0.34">
<address name="raghu" id="45678"/>
<address name="lucky" id="67895"/>
</server>
</config>
[download]

I need to remove the empty line which is created due to deletion of data element in the xml file to achieve the ideal modified xml file. how can I do that? any suggestions?

Comment on how to remove an empty line from a xml file?? Download Code

Replies are listed 'Best First'.
Re: how to remove an empty line from a xml file?? by beech (Parson) on Oct 01, 2016 at 07:04 UTC
Hi I need to remove the empty line which is created due to deletion of data element in the xml file to achieve the ideal modified xml file. how can I do that? any suggestions? The empty line is just another child XML::DOM::Node , no not an element, but XML::DOM::Text node, a child of $item, a sibling to $data, So ->getChildNodes and ->removeChild as you require	[reply]
Re^2: how to remove an empty line from a xml file?? by ankit.tayal560 (Beadle) on Oct 01, 2016 at 08:34 UTC
understood your point! thanks but I am unable to implement it in my script. could you please provide me with a prototype or an example script for my problem ???	[reply]
Re^3: how to remove an empty line from a xml file?? by Corion (Patriarch) on Oct 01, 2016 at 08:46 UTC
Much of Re^5: error : can't locate object method "getAttribute" via package XML::DOM::NodeList still applies, except now it's even code you've written yourself already, to remove a child node. Maybe add to that code more code to remove other child nodes.	[reply]
Re^4: how to remove an empty line from a xml file?? by ankit.tayal560 (Beadle) on Oct 01, 2016 at 09:08 UTC
Re^5: how to remove an empty line from a xml file?? by Corion (Patriarch) on Oct 01, 2016 at 09:13 UTC
Re^3: how to remove an empty line from a xml file?? by beech (Parson) on Oct 01, 2016 at 09:00 UTC
Hi, understood your point! thanks but I am unable to implement it in my script. could you please provide me with a prototype or an example script for my problem ??? Can I see what you tried?	[reply]
Re^4: how to remove an empty line from a xml file?? by ankit.tayal560 (Beadle) on Oct 01, 2016 at 09:29 UTC