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writing the xml DOM data into xml file with proper indentation in perl

Posted on 2009-05-12
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Last Modified: 2012-08-13
I am loading the content from an xml file using DOM. I am inserting some elements into the DOM. And now I am  writing the xml using perl XML::DOM::Node class's printToFile method. But i am not getting a properly structured  xml output. Can anyone suggest me about the options available in DOM parser perl module to write a structured xml?
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Question by:YUGA255
3 Comments
 
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by:lyhan
lyhan earned 250 total points
ID: 24364850
I usually use XML::Twig to output the nice formatted XML.

Please see attached code for example
my $parser = new XML::DOM::Parser;

my $dom = $parser->parse($xml);
 

my $book = $dom->createElement("Book");

   $dom->getDocumentElement->appendChild($book);

my $twig = new XML::Twig;

   $twig->set_indent(" "x4);

   $twig->parse($dom->toString);

   $twig->set_pretty_print("indented");

#output

print $twig->sprint;

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Accepted Solution

by:
kawas earned 250 total points
ID: 25225326
late to the party here, but you could use XML::LibXML too
use XML::LibXML;
 

# input is a file

my $input = 'some_file.xml';

# create the parser

my $parser = XML::LibXML->new();
 

# parse a file

my $doc = $parser->parse_file($xml);

# use parse_string() for a string of XML
 

my $filename = 'out.xml';

my $format = 1;
 

# print out the string of formatted XML

print $doc->toString(1);
 

# write to file a string of formatted XML

$doc->toFile($filename, $format);

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