Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / v9 / lib / perl5 / site_perl / 5.8.8 / sun4-solaris-64-ld / XML / Parser / LWPExternEnt.pl

# LWPExternEnt.pl
#
# Copyright (c) 2000 Clark Cooper
# All rights reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.

package XML::Parser;

use URI;
use URI::file;
use LWP;

##
## Note that this external entity handler reads the entire entity into
## memory, so it will choke on huge ones. It would be really nice if
## LWP::UserAgent optionally returned us an IO::Handle.
##

sub lwp_ext_ent_handler {
 my ($xp, $base, $sys) = @_;  # We don't use public id

 my $uri;

 if (defined $base) {
   # Base may have been set by parsefile, which is agnostic about
   # whether its a file or URI.
   my $base_uri = new URI($base);
   unless (defined $base_uri->scheme) {
     $base_uri = URI->new_abs($base_uri, URI::file->cwd);
   }

   $uri = URI->new_abs($sys, $base_uri);
 }
 else {
   $uri = new URI($sys);
   unless (defined $uri->scheme) {
     $uri = URI->new_abs($uri, URI::file->cwd);
   }
 }
 
 my $ua = $xp->{_lwpagent};
 unless (defined $ua) {
   $ua = $xp->{_lwpagent} = new LWP::UserAgent();
   $ua->env_proxy();
 }

 my $req = new HTTP::Request('GET', $uri);

 my $res = $ua->request($req);
 if ($res->is_error) {
   $xp->{ErrorMessage} .= "\n" . $res->status_line . " $uri";
   return undef;
 }
 
 $xp->{_BaseStack} ||= [];
 push(@{$xp->{_BaseStack}}, $base);

 $xp->base($uri);
 
 return $res->content;
}  # End lwp_ext_ent_handler

sub lwp_ext_ent_cleanup {
 my ($xp) = @_;

 $xp->base(pop(@{$xp->{_BaseStack}}));
}  # End lwp_ext_ent_cleanup

1;