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Top Forums Shell Programming and Scripting How to improve the performance of parsers in Perl? Post 302517106 by vanitham on Tuesday 26th of April 2011 06:01:17 AM
Old 04-26-2011
Quote:
Originally Posted by fpmurphy
Unless you need the complete document DOM in memory, a SAX (Sequential Access XML) parser will nearly always be faster. Whereas the DOM operates on the document as a whole, SAX parsers operate on each piece of the XML document sequentially. Even better would be StAX (Streaming API for XML) which is a newer API for pull-parsing of XML

Perl has several SAX modules but I do not see any StAX modules.
Hi,

I tried looking but our constraint is that we need to use DOM parsers only.

So is there caching mechanism available for these parsers?

Is there any method to speed up the Dom parsers in Perl?

Help is very much required.

Regards
Vanitha
 

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Test::XML::SAX(3pm)					User Contributed Perl Documentation				       Test::XML::SAX(3pm)

NAME
Test::XML::SAX - Test XML::SAX handlers SYNOPSIS
use Test::XML::SAX tests => 1; use My::XML::Filter; my $handler = My::XML::Filter->new; test_sax( $handler, '<foo />', '<bar/>', 'translates foo to bar' ); # ... In Another File ... use Test::XML::SAX; use My::XML::Filter; sub do_tests { my $handler = My::XML::Filter->new; test_sax( $handler, '<foo />', '<bar/>', 'translates foo to bar' ); } test_all_sax_parsers( &do_tests, 1 ); DESCRIPTION
This module is for testing XML::SAX handlers. FUNCTIONS
All functions are exported. test_sax ( HANDLER, INPUT, EXPECTED [, TESTNAME ] ) This function will process INPUT using HANDLER, and compare the result with EXPECTED. TESTNAME can optionally be used to name the test in the output (a good idea). test_all_sax_parsers ( SUB [, NUMTESTS ] ) This function will repeat a set of tests for all installed SAX parsers. SUB must be a coderef to run a series of tests. NUMTESTS is the number of tests inside SUB. NB: You must not issue a plan to Test::More if you call this function! The plan will be set for you, according to the number of parsers installed and NUMTESTS. This also means that you must not have any tests outside of SUB or you will get an error. When SUB is called, it will be passed two arguments. The name of the parser being used and the number of tests. It can use this information to decide whether or not to skip this set of tests. SEE ALSO
Test::More, Test::XML, XML::SAX. AUTHOR
Dominic Mitchell, <cpan2 (at) semantico.com> COPYRIGHT AND LICENSE
Copyright 2002 by semantico This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2009-07-02 Test::XML::SAX(3pm)
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