use strict; use warnings; use XML::LibXML; use IO::File; # first instanciate the parser my $parser = XML::LibXML->new(); # initialize the callbacks $parser->match_callback( \&match_uri ); $parser->read_callback( \&read_uri ); $parser->open_callback( \&open_uri ); $parser->close_callback( \&close_uri ); # include XIncludes on the fly $parser->expand_xinclude( 1 ); # parse the file "text.xml" in the current directory my $dom = $parser->parse_file("test.xml"); print $dom->toString() , "\n"; # the callbacks follow # these callbacks are used for both the original parse AND the XInclude sub match_uri { my $uri = shift; return $uri !~ /:\/\// ? 1 : 0; # we handle only files } sub open_uri { my $uri = shift; my $handler = new IO::File; if ( not $handler->open( "<$uri" ) ){ $handler = 0; } return $handler; } sub read_uri { my $handler = shift; my $length = shift; my $buffer = undef; if ( $handler ) { $handler->read( $buffer, $length ); } return $buffer; } sub close_uri { my $handler = shift; if ( $handler ) { $handler->close(); } return 1; }