[BACK]Return to lonprintout.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface
File:  [LON-CAPA] / loncom / interface / lonprintout.pm
Revision 1.17: download - view: text, annotated - select for diffs
Wed Mar 20 22:14:30 2002 UTC (22 years, 1 month ago) by sakharuk
Branches: MAIN
CVS tags: HEAD
corrections for Latex output: <br> tag and \noindent command mainly

# The LearningOnline Network
# Printout
#
# $Id: lonprintout.pm,v 1.17 2002/03/20 22:14:30 sakharuk 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>What do you want to print? Make a choice.</h1><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">  Current document
(you will print what you see on the screen)<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">  All documents from the top level sequence<br />
<br /><hr /><br />
<h1>And what page format do you prefer?</h1>
<input type="radio" name="layout" value="CBI" checked>  CBI <br />
<input type="radio" name="layout" value="CAPA"> CAPA <br />
<input type="submit" value="Submit your 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 $layout = $ENV{'form.layout'};
    my $laystyle = 'book';
    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') {
	my @master_seq = ();
	my $keyword = 0;
	my $output_seq = '';
#-- where is the main sequence of the course?
	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',$first_app+5);
	}
    }
#-- corrections for the different page formats
    if ($layout eq 'CBI') {
	$result =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{-40pt}\\setlength{\\evensidemargin}{-60pt}\\setlength{\\topmargin}{200pt}\\setlength{\\textwidth}{4\.4in}\\setlength{\\textheight}{6\.8in}\\setlength{\\parindent}{20pt}\\setlength{\\marginparwidth}{90pt}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt} \\begin{document}/;
        $laystyle = 'album';
    } elsif ($layout eq 'CAPA') {
        my $courseidinfo = $ENV{'request.role'};
        $_ = $courseidinfo;
        m/.*\/(.*)/;
        $courseidinfo = $ENV{'course.physnet_'.$1.'.description'};
	$result =~ s/\\documentclass\[letterpaper\]{article}/\\documentclass\[twocolumn\]{article}/;
	$result =~ s/\\begin{document}/\\textheight 25\.9cm\\oddsidemargin = -0\.57in\\evensidemargin = -0\.57in\\textwidth= 7\.7in\\begin{document}\\voffset=-1\.8cm\\setcounter{page}{1}\\noindent\\fbox{\\textbf{$ENV{'environment.firstname'} $ENV{'environment.lastname'}}}\\hskip 1\.4in $courseidinfo \\vskip 5 mm /;
	$result =~ s/\\includegraphics/\\includegraphics\[width=9\.0 cm\]/g;
    }
#-- LaTeX corrections 
    $result =~ s/^\s+$//gm; #remove empty lines
    $result =~ s/%/\\%/g;   #corrects %
#-- 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&$laystyle">
</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>