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Top Forums Shell Programming and Scripting Create an XML tree using perl Post 302517573 by vanitham on Wednesday 27th of April 2011 07:13:17 AM
Old 04-27-2011
Create an XML tree using perl

Hi,

I am having an xml file which looks like this:

Code:
<Nodes>
<Node>
	<Nodename>Student</Nodename>
	<Filename>1.txt</filename>
<Node>
	<Nodename>Dummy</Nodename>
	<Filename>22.txt</filename>
</Node>
</Node>
</Nodes>

The text files will have data like this:
#1.txt
Studentid,studentname,mothertongue:language
|||ly 2.txt ----

The output will look this
Code:
<Nodes>
<Student>
<Studentid>123</Studentid>
<studentname>name1 </studentname>
<mothertongue>english (or japan) </mothertongue>

the text file data has to be taken for the appropriate node and then xml tree has to be built...

There are very huge xml files.

How can i create an xml tree which consumes less time and with better performance?

which parser do i need to use?


Help is very much required.
Regards
Vanitha
 

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Expat(3)						User Contributed Perl Documentation						  Expat(3)

NAME
XML::SAX::Expat - SAX2 Driver for Expat (XML::Parser) SYNOPSIS
use XML::SAX::Expat; use XML::SAX::MyFooHandler; my $h = XML::SAX::MyFooHandler->new; my $p = XML::SAX::Expat->new(Handler => $h); $p->parse_file('/path/to/foo.xml'); DESCRIPTION
This is an implementation of a SAX2 driver sitting on top of Expat (XML::Parser) which Ken MacLeod posted to perl-xml and which I have updated. It is still incomplete, though most of the basic SAX2 events should be available. The SAX2 spec is currently available from <http://perl-xml.sourceforge.net/perl-sax/>. A more friendly URL as well as a PODification of the spec are in the works. METHODS
The methods defined in this class correspond to those listed in the PerlSAX2 specification, available above. FEATURES AND CAVEATS
supported_features Returns: * http://xml.org/sax/features/external-general-entities * http://xml.org/sax/features/external-parameter-entities * [ Features supported by ancestors ] Turning one of the first two on also turns the other on (this maps to the XML::Parser ParseParamEnts option). This may be fixed in the future, so don't rely on this behaviour. MISSING PARTS
XML::Parser has no listed callbacks for the following events, which are therefore not presently generated (ways may be found in the future): * ignorable_whitespace * skipped_entity * start_entity / end_entity * resolve_entity Ways of signalling them are welcome. In addition to those, set_document_locator is not yet called. TODO
- reuse Ken's tests and add more AUTHOR
Robin Berjon; stolen from Ken Macleod, ken@bitsko.slc.ut.us, and with suggestions and feedback from perl-xml. Currently maintained by Bjoern Hoehrmann, <http://bjoern.hoehrmann.de/>. COPYRIGHT AND LICENSE
Copyright (c) 2001-2008 Robin Berjon. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
XML::Parser::PerlSAX perl v5.18.2 2014-01-20 Expat(3)
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