# The LearningOnline Network
# Printout
#
# $Id: lonprintout.pm,v 1.15 2002/02/21 04:13:20 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
# (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 :http);
use Apache::lonxml;
use Apache::lonnet;
use Apache::inputtags;
use Apache::edit;
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;
$r->print(<<ENDMENUOUT);
<input type="hidden" name="phase" value="two">
<input type="hidden" name="url" value="$ENV{'form.postdata'}">
<input type="radio" name="choice" value="Standard LaTeX output for current document"> Standard LaTeX output for current document<br />
<input type="radio" name="choice" value="Standard LaTeX output for the primary sequence"> Standard LaTeX output for the primary sequence<br />
<input type="radio" name="choice" value="Standard LaTeX output for the top level sequence"> Standard LaTeX output for the top level sequence<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 $filename;
if ($choice eq 'Standard LaTeX output for current document') {
my %moreenv;
my $currequest=$ENV{'request.filename'};
$moreenv{'form.grade_target'}='tex';
$moreenv{'request.filename'}=$ENV{'form.url'};
&Apache::lonnet::appenv(%moreenv);
my $texversion=&Apache::lonnet::ssi($ENV{'form.url'});
&Apache::lonnet::delenv('form.grade_target');
%moreenv = ();
$moreenv{'request.filename'}=$currequest;
&Apache::lonnet::appenv(%moreenv);
$result .= $texversion;
} elsif ($choice eq 'Standard LaTeX output for the primary sequence') {
my @master_seq = ();
my $keyword = 0;
my $output_seq = '';
my $current_file = '/res/'.$ENV{'request.ambiguous'};
$current_file =~ s/(\/res\/physnet\/physnet)(\/m\d+)\/(.*)/$1$2$2\.sequence/;
while ($current_file ne '') {
my $file=&Apache::lonnet::filelocation("",$current_file);
my $filecontents=&Apache::lonnet::getfile($file);
my @file_seq = &content_map($filecontents);
if (defined @file_seq) {
#-- adding an additional array to the master one
if (defined @master_seq) {
my $old_value = $#master_seq;
my $total_value = $#master_seq + $#file_seq +2;
for (my $j=0; $j<=$old_value-$keyword+1; $j++) {
$master_seq[$total_value-$j] = $master_seq[$old_value-$j];
}
for (my $j=0; $j<=$#file_seq; $j++){
$master_seq[$keyword+$j] = $file_seq[$j];
}
@file_seq = ();
$keyword = 0;
} else {
@master_seq = @file_seq;
@file_seq = ();
}
}
#-- checking wether .sequence file is among the set of files
$current_file = '';
for (my $i=0; $i<=$#file_seq; $i++) {
$_ = $file_seq[$i];
if (m/(.*)\.sequence/) {
$current_file = $_;
$keyword = $i;
last;
}
}
}
#-- produce an output string
for (my $i=0;$i<=$#master_seq;$i++) {
$_ = $master_seq[$i];
m/\"(.*)\"/;
if (index($1,'-tc.xml',0)==-1) {
my $file=&Apache::lonnet::filelocation("",$1);
my $filecontents=&Apache::lonnet::getfile($file);
$output_seq .= $filecontents;
}
}
#-- cleanup of output string (temporary cbi-specific)
$output_seq =~ s/<physnet>//g;
$output_seq =~ s/<\/physnet>//g;
$output_seq = '<physnet>'.$output_seq.' </physnet>';
#-- final accord
$result = &Apache::lonxml::xmlparse('tex',$output_seq,'',%mystyle);
} elsif ($choice eq 'Standard LaTeX output for the top level sequence') {
#-- where is the main sequence of the course?
my @master_seq = ();
my $keyword = 0;
my $output_seq = '';
my $main_seq = '/res/'.$ENV{'request.course.uri'};
my $file=&Apache::lonnet::filelocation("",$main_seq);
my $filecontents=&Apache::lonnet::getfile($file);
my @file_seq = &content_map($filecontents);
#-- temporary solution (without sequence inside sequence) - have to be generalized
# if (defined @master_seq) {
# my $old_value = $#master_seq;
# my $total_value = $#master_seq + $#file_seq +2;
# for (my $j=0; $j<=$old_value-$keyword+1; $j++) {
# $master_seq[$total_value-$j] = $master_seq[$old_value-$j];
# }
# for (my $j=0; $j<=$#file_seq; $j++){
# $master_seq[$keyword+$j] = $file_seq[$j];
# }
# @file_seq = ();
# $keyword = 0;
# } else {
@master_seq = @file_seq;
# @file_seq = ();
# }
#-- checking wether .sequence file is among the set of files
# my $current_file = '';
# for (my $i=0; $i<=$#file_seq; $i++) {
# $_ = $file_seq[$i];
# if (m/(.*)\.sequence/) {
# $current_file = $_;
# $keyword = $i;
# last;
# }
# }
#-- produce an output string
for (my $i=0;$i<=$#master_seq;$i++) {
$_ = $master_seq[$i];
m/\"(.*)\"/;
$_ = $1;
my $urlp = $1;
if (/\.problem/) {
my %moreenv;
$moreenv{'form.grade_target'}='tex';
&Apache::lonnet::appenv(%moreenv);
my $texversion=&Apache::lonnet::ssi($urlp);
&Apache::lonnet::delenv('form.grade_target');
$texversion =~ s!\.gif!\.eps!;
$result .= $texversion;
}
}
#-- additional cleanup for output
my $first_app = index($result,'\documentclass',0);
$first_app = index($result,'\documentclass',$first_app+5);
while ($first_app != -1) {
my $second_app = index($result,'begin{document}',$first_app);
$first_app = rindex($result,'\end{document}',$first_app);
substr($result,$first_app,$second_app-$first_app+15) = '\vskip 7 mm';
$first_app = index($result,'\documentclass',$first_app+5);
}
}
#-- writing .tex file in prtspool
{
my $temp_file;
$filename = "/home/httpd/prtspool/$ENV{'environment.firstname'}$ENV{'environment.lastname'}temp$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;
}
$r->print(<<FINALEND);
<meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename">
</body>
</html>
FINALEND
}
sub content_map {
#-- find a list of files to print
my $map_string = shift;
my @number_seq = ();
my @file_seq = ();
my $startlink = index($map_string,'<link',0);
my $endlink = index($map_string,'</link>',$startlink);
my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
$_ = $chunk;
m/from=\"(\d+)\"/;
push @number_seq,$1;
while ($startlink != -1) {
$endlink = index($map_string,'</link>',$startlink);
$chunk = substr($map_string,$startlink,$endlink-$startlink+7);
substr($map_string,$startlink,$endlink-$startlink+7) = '';
$_ = $chunk;
m/to=\"(\d+)\"/;
push @number_seq,$1;
$startlink = index($map_string,'from="'.$1.'"',$startlink);
}
my $stalink = index($map_string,' to="'.$number_seq[0].'"',$startlink);
while ($stalink != -1) {
$startlink = rindex($map_string,'<link ',$stalink);
$endlink = index($map_string,'</link>',$startlink);
$chunk = substr($map_string,$startlink,$endlink-$startlink+7);
substr($map_string,$startlink,$endlink-$startlink+7) = '';
$_ = $chunk;
m/from=\"(\d+)\"/;
unshift @number_seq,$1;
$stalink = index($map_string,' to="'.$number_seq[0].'"',0);
}
for (my $i=0;$i<=$#number_seq;$i++) {
$stalink = index($map_string,' id="'.$number_seq[$i].'"',0);
{
my $ahed1 = index($map_string,'src="',$stalink);
my $ahed2 = index($map_string,'</resource>',$stalink);
if ($ahed1 != -1) {
if ($ahed1 < $ahed2) {
$startlink = $ahed1;
} else {
$startlink = rindex($map_string,'src="',$stalink);
}
} else {
$startlink = rindex($map_string,'src="',$stalink);
}
}
$startlink = index($map_string,'"',$startlink);
$endlink = index($map_string,'"',$startlink+1);
$chunk = substr($map_string,$startlink,$endlink-$startlink+1);
push @file_seq,$chunk;
}
return @file_seq;
}
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__
#### Test block
# my $ere;
# foreach $ere (%ENV) {
# $result .= ' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n";
# }
####
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>