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File:  [LON-CAPA] / loncom / interface / lonprintout.pm
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Tue Sep 18 21:08:47 2001 UTC (22 years, 7 months ago) by sakharuk
Branches: MAIN
CVS tags: HEAD
*** empty log message ***

# The LearningOnline Network
# Printout
#
# (Internal Server Error Handler
#
# (Login Screen
# 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
# 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
#
# 3/1/1 Gerd Kortemeyer)
#
# 3/1 Gerd Kortemeyer
#
# 9/17 Alex Sakharuk
#
package Apache::lonprintout;

use strict;
use Apache::Constants qw(:common);
use Apache::lonxml;
use Apache::lonnet;
use Apache::File();



sub headerform {
    my $r = shift;
    $r->print(<<ENDHEADER);
<html>
<head>
<title>LON-CAPA output for printing</title>
</head>
<body bgcolor="FFFFFF">
<form method="post" enctype="multipart/form-data" action="/adm/printout" name="printform">
<h1>Printout:</h1><br></br>
ENDHEADER
}


sub menu_for_output {
    my $r = shift;
    $r->print(<<ENDMENUOUT);
<input type="hidden" name="phase" value="two">
<input type="radio" name="choice" value="Standard LaTeX output for current document">  Standard LaTeX output for current document<br></br>
<input type="radio" name="choice" value="Standard LaTeX output for the whole sequence">  Standard LaTeX output for the whole sequence<br></br>
<input type="submit" value="Please make a choice">
</form>
</body>
</html>
ENDMENUOUT
}


sub output_data {
    my $r = shift;
    $r->print(<<ENDPART);
<html>
<head>
<title>LON-CAPA output for printing</title>
</head>
<body bgcolor="FFFFFF">
<hr>
ENDPART

    my $choice = $ENV{'form.choice'};
    my $result = '';
    my %mystyle;

#    my $ere;
#    foreach $ere (%ENV) {
#	$r->print(' SS '.$ere.' => '.$ENV{$ere}.' FF ');
#    }


    if ($choice eq 'Standard LaTeX output for current document') {

	my $file=&Apache::lonnet::filelocation("",'/res/'.$ENV{'request.ambiguous'});
	my $filecontents=&Apache::lonnet::getfile($file);
	$result = &Apache::lonxml::xmlparse('tex',$filecontents,'',%mystyle);

	{
	    my $temp_file;
	    my $filename = "/home/httpd/prtspool/$ENV{'environment.firstname'}temp$ENV{'user.login.time'}.tex";
	    unless ($temp_file = Apache::File->new('>'.$filename)) {
		$r->log_error("Couldn't open $filename for output $!");
		return SERVER_ERROR; 
	    } 
		print $temp_file $result;
	}



    

    } elsif ($choice eq 'Standard LaTeX output for the whole sequence') {
	my $current_file = '/res/'.$ENV{'request.ambiguous'};
        $current_file =~ s/(\/res\/physnet\/physnet)(\/m\d+)\/(.*)/$1$2$2\.sequence/;
	my $file=&Apache::lonnet::filelocation("",$current_file);
	my $filecontents=&Apache::lonnet::getfile($file);
	$result = &Apache::lonxml::xmlparse('tex',$filecontents,'',%mystyle);

	my @number_seq = &content_map($result);
	$r->print(@number_seq);



    }
$r->print(<<FINALEND);
</body>
</html>
FINALEND
}


sub content_map {
#-- find a list of files to publish
    my $map_string = shift;

    my @number_seq = ();
    my $startlink = index($map_string,'<link',0);
    while ($startlink != -1) {
	my $endlink = index($map_string,'</link>',$startlink);
	my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
	substr($map_string,$startlink,$endlink-$startlink+7) = '';
	$_ = $chunk;
        m/from=\"(\d+)\"/;
	push @number_seq,$1;
        m/to=\"(\d+)\"/;
	push @number_seq,$1;
	$startlink = index($map_string,'<link from="'.$1.'"',$startlink);
    }

    return @number_seq;


#    my @one = ();
#    my @two = ();
#    my @three = ();
#    my $start = index($map_string,'<link',0);
#    while ($start != -1) {
#	my $finish =  index($map_string,'</link>',$start);
#	my $chunk = substr($map_string,$start,$finish-$start+7);
#	substr($map_string,$start,$finish-$start+7) = '';
#	$_ = $chunk;
#        m/from=\"(\d+)\"/;
#	push @one,$1;
#        m/to=\"(\d+)\"/;
#	push @two,$1;
#	$start = index($map_string,'<link',$start);
#    }


#    return @three;
#    return $map_string;
}


sub handler {

    my $r = shift;
    $r->content_type('text/html');
    $r->send_http_header;

#-- start form
    &headerform($r);
#-- menu for output
    unless ($ENV{'form.phase'}) {
	&menu_for_output($r);
    }
#-- core part 
    if ($ENV{'form.phase'} eq 'two') {
	&output_data($r);
    }
    return OK;

} 

1;
__END__
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