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Diff for /loncom/interface/lonprintout.pm between versions 1.1 and 1.125

version 1.1, 2001/01/03 16:20:59 version 1.125, 2003/03/03 20:26:08
Line 1 Line 1
 # The LearningOnline Network  # The LearningOnline Network
 # Printout  # Printout
 #  #
   # $Id$
   #
   # 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  # (Internal Server Error Handler
 #  #
 # (Login Screen  # (Login Screen
Line 11 Line 35
 #  #
 # 3/1 Gerd Kortemeyer  # 3/1 Gerd Kortemeyer
 #  #
   # 9/17 Alex Sakharuk
   #
 package Apache::lonprintout;  package Apache::lonprintout;
   
 use strict;  use strict;
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common :http);
   use Apache::lonxml;
   use Apache::lonnet;
   use Apache::loncommon;
   use Apache::inputtags;
   use Apache::grades;
   use Apache::edit;
   use Apache::File();
   use Apache::lonnavmaps;
   use POSIX qw(strftime);
   use GDBM_File;
   
 sub handler {  
   my %hash;
   my $LaTeXwidth = 0;
   
   sub headerform {
     my $r = shift;      my $r = shift;
     $r->content_type('text/html');      $r->print(<<ENDHEADER);
     $r->send_http_header;  <html>
     return OK if $r->header_only;  <head>
   <title>LON-CAPA output for printing</title>
   </head>
   <body bgcolor="FFFFFF">
   <form method="post" enctype="multipart/form-data" action="/adm/printout" name="printform">
   ENDHEADER
   
       if ($ENV{'form.postdata'}=~m|^/res/|) {
    $r->print(<<ENDHEADER1);
   <b>Path to current document: </b><tt>$ENV{'form.postdata'}</tt><p>
   ENDHEADER1
       }
   }
   
   
   sub menu_for_output {
       my $r = shift;
       my ($title_for_single_resource,$title_for_sequence,$title_for_main_map) = &details_for_menu;
       my $assignment = $title_for_sequence;
       if ($title_for_single_resource ne '') {$title_for_single_resource = '"'.$title_for_single_resource.'"';}
       if ($title_for_sequence ne '') {$title_for_sequence = '"'.$title_for_sequence.'"';}
       if ($title_for_main_map ne '') {$title_for_main_map = '"'.$title_for_main_map.'"';}
       $ENV{'form.postdata'} =~ s|http://[^/]+||;
       my $subdir_to_print = $ENV{'form.postdata'};
       $subdir_to_print =~ m/\/([^\/]+)$/;
       $subdir_to_print =~ s/\Q$1\E//;
       $r->print(<<ENDMENUOUT1);
   <h1>What do you want to print? Make a choice.</h1><br />
   <input type="hidden" name="phase" value="two">
   <input type="hidden" name="url" value="$ENV{'form.postdata'}">
   <input type="hidden" name="assignment" value="$assignment">
   <input type="radio" name="choice" value="Standard LaTeX output for current document" checked>  Current document <b>$title_for_single_resource</b>
   (prints what you just saw on the screen)<br />
   ENDMENUOUT1
       if ($ENV{'form.postdata'}=~/\/res\//) {
    $r->print(<<ENDMENUOUT2);
   <input type="radio" name="choice" value="Standard LaTeX output for the primary sequence">  Problem(s) from <b>$title_for_sequence</b><br />
   <input type="radio" name="choice" value="Standard LaTeX output for whole primary sequence">  Problem(s) plus page(s) or html/xml file(s) from <b>$title_for_sequence</b><br />
   ENDMENUOUT2
       }
       if (($ENV{'request.role'}=~m/^cc\./ or $ENV{'request.role'}=~m/^in\./ or $ENV{'request.role'}=~m/^ta\./) and ($ENV{'form.postdata'}=~/\/res\//)) { 
    $r->print(<<ENDMENUOUT6);
   <input type="radio" name="choice" value="Standard LaTeX output for the top level sequence">  All problems in this course (<b>warning:</b> this may be time consuming) <br />
   <br />
   <input type="radio" name="choice" value="All class print">  All problems from <b>$title_for_sequence</b> for selected students<br /><br />
   ENDMENUOUT6
       }
         my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'});
         $subdirtoprint =~ s/\/[^\/]+$//;
         if ((&Apache::lonnet::allowed('bre',$subdirtoprint) eq 'F') and ($ENV{'form.postdata'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)/)) {
     $r->print(<<ENDMENUOUT4);
     <input type="radio" name="choice" value="Subdirectory print">  Problems from current subdirectory <b>$subdir_to_print</b><br />
   ENDMENUOUT4
         }
       $r->print(<<ENDMENUOUT5);
   <br /><hr /><br />
   <h1>And what page format do you prefer?</h1>
   <table>
    <tr>
      <td>
        <input type="radio" name="layout" value="CBI"> Landscape <br />
        <input type="radio" name="layout" value="CAPA" checked>  Portrait <br />
      </td>
      <td>&nbsp;</td>
      <td rawspan="2">
        Number of columns: <select name="numberofcolumns">
                            <option> 1 </option>
                            <option selected> 2 </option>
                           </select> 
      </td>
      <td rawspan="2">
        Paper size (format [width x height]): <select name="papersize">
                                               <option selected> Letter [8 1/2x11 in] </option>
                                               <option> Legal [8 1/2x14 in] </option>
                                               <option> Ledger/Tabloid [11x17 in] </option>
                                               <option> Executive [7 1/2x10 in] </option>
                                               <option> A2 [420x594 mm] </option>
                                               <option> A3 [297x420 mm] </option>
                                               <option> A4 [210x297 mm] </option>
                                               <option> A5 [148x210 mm] </option>
                                               <option> A6 [105x148 mm] </option>
                                              </select> 
      </td>
    </tr>
   
   </table>
   </br> 
   <input type="submit" value="Submit your choice">
   ENDMENUOUT5
   }
   
   
   sub sequence_content_menu {
       my ($key_to,$r) = @_;
       my $primary_sequence;
       my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'});
       my @sequence = split('___',$symbolic);
       $primary_sequence=&Apache::lonnet::clutter($sequence[0]);
       my @master_seq = &coming_from_hash($primary_sequence);
       my @titles_master_seq = (); 
       for (my $i=0;$i<=$#master_seq;$i++) {
    my ($path,$title,$symb) = split /&&/,$master_seq[$i];
    $master_seq[$i] = $path.'&&'.$symb;
           push @titles_master_seq,  $title;
       }
       my @master_seq_view = @master_seq;
       if ($ENV{'user.adv'}) {
         for (my $i=0;$i<=$#master_seq_view;$i++) {
    $master_seq_view[$i]=~/___\d+___(.+)$/;
    $master_seq_view[$i]='/'.$1;
         }
       } else {
         for (my $i=0;$i<=$#master_seq_view;$i++) {
            $master_seq_view[$i]=' ';
         }
       }
       $r->print(<<ENDMENUOUT1);
   <input type="hidden" name="url" value="$ENV{'form.url'}">
   <input type="hidden" name="choice" value="$ENV{'form.choice'}">
   <input type="hidden" name="layout" value="$ENV{'form.layout'}">
   <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">
   <input type="hidden" name="assignment" value="$ENV{'form.assignment'}">
   <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
   <h1>Mark item(s) which you want to print</h1>
   <script>
       function checkall() {
    for (i=0; i<document.forms.printform.elements.length; i++) {
               if (document.forms.printform.elements[i].name.indexOf('whatfile')==0) {
         document.forms.printform.elements[i].checked=true;
               }
           }
       }
       function uncheckall() {
    for (i=0; i<document.forms.printform.elements.length; i++) {
               if 
             (document.forms.printform.elements[i].name.indexOf('whatfile')==0) {
         document.forms.printform.elements[i].checked=false;
               }
           }
       }
   </script>
   <b>
   <input type=button onClick="checkall()" value="Check All">&nbsp;
   <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;
   <input type="submit" value="Submit">
   <p>
   ENDMENUOUT1
       my $inc=0; 
       for (my $i=0;$i<=$#master_seq_view;$i++) {
         if ($key_to==1 && $master_seq[$i]=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
    $r->print('<br /><input type=checkbox name="whatfile'.$inc.'" value="'.$master_seq[$i].'"> '."\n".'<b>'.
                     $titles_master_seq[$i].'</b>&nbsp;&nbsp;&nbsp;<small>'.$master_seq_view[$i].'</small>');
           $inc++;
       } elsif ($key_to==0 && $master_seq[$i]=~/\.(problem|exam|quiz|assess|survey|form|library|xml|htm|html|page)$/) {
    $r->print('<br /><input type=checkbox name="whatfile'.$inc.'" value="'.$master_seq[$i].'"> '."\n".'<b>'.
                     $titles_master_seq[$i].'</b>&nbsp;&nbsp;&nbsp;<small>'.$master_seq_view[$i].'</small>');
           $inc++;
         }
       }
       $r->print(<<ENDMENUOUT2);
   <br /><br />
   <input type="hidden" name="numberoffiles" value="$inc">
   <input type="hidden" name="phase" value="three">
   <input type=button onClick="checkall()" value="Check All">&nbsp;
   <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;
   <input type="submit" value="Submit">
   ENDMENUOUT2
   
   }
   
   
   sub problem_choice_menu {
       my $r = shift;
       my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'});
       $subdirtoprint =~ s/\/[^\/]+$//;
       my @list_of_files = ();
       my @content_directory = ();
       $r->print("Subdir: " . $subdirtoprint . "<br />");
       if ($subdirtoprint =~ m|/home/([^/]+)/public_html|) {
    #localmachine CSTR space
    my $user=$1;
    my $domain=$Apache::lonnet::perlvar{'lonDefDomain'};
    @content_directory = &Apache::lonnet::dirlist($subdirtoprint,
         $domain, $user,'');
       } else {
           #local library server res space (allows to print only from the own library server)
    @content_directory = &Apache::lonnet::dirlist($subdirtoprint,$ENV{'user.domain'}, $ENV{'user.name'},'');
       }
       for (my $iy=0;$iy<=$#content_directory;$iy++) {
    my @tempo_array = split(/&/,$content_directory[$iy]);
    if ($tempo_array[0] =~ m/^[^\.]+\.(problem|exam|quiz|assess|survey|form|library)$/) {
       push(@list_of_files,$tempo_array[0]);
    }
       }
       $subdirtoprint =~ s/\/$//;
       for (my $i=0;$i<=$#list_of_files;$i++) {
    $list_of_files[$i] = $subdirtoprint.'/'.$list_of_files[$i];
       }
       $r->print(<<ENDMENUOUT1);
   <input type="hidden" name="url" value="$ENV{'form.url'}">
   <input type="hidden" name="choice" value="$ENV{'form.choice'}">
   <input type="hidden" name="layout" value="$ENV{'form.layout'}">
   <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
   <h1>Mark problems which you want to print</h1>
   <script>
       function checkall() {
    for (i=0; i<document.forms.printform.elements.length; i++) {
               if 
             (document.forms.printform.elements[i].name.indexOf('whattoprint')==0) {
         document.forms.printform.elements[i].checked=true;
               }
           }
       }
   
   
       function uncheckall() {
    for (i=0; i<document.forms.printform.elements.length; i++) {
               if 
             (document.forms.printform.elements[i].name.indexOf('whattoprint')==0) {
         document.forms.printform.elements[i].checked=false;
               }
           }
       }
   </script>
   <input type=button onClick="checkall()" value="Check All">&nbsp;
   <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;
   <input type="submit" value="Submit">
   <p>
   ENDMENUOUT1
       my $i=0;
       foreach my $file (sort @list_of_files) {
    $r->print('<br /><input type=checkbox name="whattoprint'.$i.'" value="'.$file.'"> '.
                     $file);
    $i++;
       }
       $r->print(<<ENDMENUOUT2);
   <br /><br />
   <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">
   <input type="hidden" name="numberofproblems" value="$i">
   <input type="hidden" name="phase" value="three">
   <input type=button onClick="checkall()" value="Check All">&nbsp;
   <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;
   <input type="submit" value="Submit">
   ENDMENUOUT2
   }
   
   
   sub additional_class_menu {
       my $r = shift;
       $r->print(<<ENDMENUOUT1);
   <input type="hidden" name="url" value="$ENV{'form.url'}">
   <input type="hidden" name="choice" value="$ENV{'form.choice'}">
   <input type="hidden" name="layout" value="$ENV{'form.layout'}">
   <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
   <input type="hidden" name="assignment" value="$ENV{'form.assignment'}">
   <h1>Select student(s) whose assignment you want to print</h1>
   ENDMENUOUT1
       my %courselist=&Apache::lonnet::dump(
                      'classlist',
      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
      $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
       my $now=time;
       $r->print(<<ENDDISHEADER);
   <script>
       function checkall() {
    for (i=0; i<document.forms.printform.elements.length; i++) {
               if 
             (document.forms.printform.elements[i].name.indexOf('whomtoprint')==0) {
         document.forms.printform.elements[i].checked=true;
               }
           }
       }
   
       function checksec() {
    for (i=0; i<document.forms.printform.elements.length; i++) {
               if 
             (document.forms.printform.elements[i].value.indexOf
              (document.forms.printform.chksec.value)==0) {
         document.forms.printform.elements[i].checked=true;
               }
           }
       }
   
 # --------------------------------------------------- Print login screen header      function uncheckall() {
     $r->print(<<ENDDOCUMENT);   for (i=0; i<document.forms.printform.elements.length; i++) {
               if 
             (document.forms.printform.elements[i].name.indexOf('whomtoprint')==0) {
         document.forms.printform.elements[i].checked=false;
               }
           }
       }
   </script>
   <input type=button onClick="checkall()" value="Check All">&nbsp;
   <input type=button onClick="checksec()" value="Type Section/Group then click">
   <input type=text size=5 name=chksec>&nbsp;
   <input type=button onClick="uncheckall()" value="Uncheck">
   <p>
   ENDDISHEADER
       my $i = 0;
       foreach (sort keys %courselist) {
           my ($end,$start)=split(/\:/,$courselist{$_});
           my $active=1;
           if (($end) && ($now>$end)) { $active=0; }
           if ($active) {
              my ($sname,$sdom)=split(/\:/,$_);
              my %reply=&Apache::lonnet::get('environment',
                 ['firstname','middlename','lastname','generation'],
                 $sdom,$sname);
              my $section=&Apache::lonnet::usection
          ($sdom,$sname,$ENV{'request.course.id'});
              $r->print(
           '<br /><input type=checkbox name="whomtoprint'.$i.'" value="'.$section.':'.$_.'"> '.
         $reply{'firstname'}.' '. 
                         $reply{'middlename'}.' '.
                         $reply{'lastname'}.' '.
                         $reply{'generation'}.
                         ' ('.$_.') '.$section);
      $i++;
           } 
       }
       $r->print(<<ENDMENUOUT2);
   <br /><br /><br />
   <table><tr><td width=300>Number of blank pages added to each student assignments to print these assignments on physically different sheets (<b>requires manual addjustment</b>): <select name="addedpages"><option selected>0</option>
                                                                               <option>1</option>
                                                                               <option>2</option>
                                                                               <option>3</option>
                                                     </select></td></tr></table>
   <br /> 
   <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">
   <input type="hidden" name="numberofstudents" value="$i">
   <input type="hidden" name="phase" value="three">
   <input type="submit" value="Submit">
   ENDMENUOUT2
   }
   
   
   sub additional_print_menu { 
       my $r = shift;
       my $what_to_print = '';
       for (my $i=0; $i<$ENV{'form.numberofstudents'};$i++) {
    $what_to_print .= '<input type="hidden" name="whomtoprint'.$i.'" value="'.$ENV{'form.whomtoprint'.$i}.'">';
       }
       for (my $i=0; $i<$ENV{'form.numberofproblems'};$i++) {
    $what_to_print .= '<input type="hidden" name="whattoprint'.$i.'" value="'.$ENV{'form.whattoprint'.$i}.'">';
       }
       for (my $i=0; $i<$ENV{'form.numberoffiles'};$i++) {
    $what_to_print .= '<input type="hidden" name="whatfile'.$i.'" value="'.$ENV{'form.whatfile'.$i}.'">';
       }
       $r->print(<<ENDMENUOUT);
       $what_to_print
   <input type="hidden" name="url" value="$ENV{'form.url'}">
   <input type="hidden" name="choice" value="$ENV{'form.choice'}">
   <input type="hidden" name="layout" value="$ENV{'form.layout'}">
   <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">
   <input type="hidden" name="numberofstudents" value="$ENV{'form.numberofstudents'}">
   <input type="hidden" name="numberofproblems" value="$ENV{'form.numberofproblems'}">
   <input type="hidden" name="numberoffiles" value="$ENV{'form.numberoffiles'}">
   <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
   <input type="hidden" name="assignment" value="$ENV{'form.assignment'}">
   <input type="hidden" name="addedpages" value="$ENV{'form.addedpages'}">
   Define one column layout parameters: <br />
   <b>Width</b>: <input type="text" name="width" width="8" value="9cm"> <br />
   <b>Height</b>: <input type="text" name="height" width="8" value="25.9cm"> <br />
   <b>Left margin</b>: <input type="text" name="leftmargin" width="8" value="-0.57in"> <br />
   <input type="hidden" name="phase" value="four">
   <input type="submit" value="Submit">
   </form>
   </body>
   </html>
   ENDMENUOUT
   }
   
   
   sub output_data {
       my $r = shift;
       $r->print(<<ENDPART);
 <html>  <html>
 <head>  <head>
 <title>The LearningOnline Network with CAPA</title>  <title>LON-CAPA output for printing</title>
 </head>  </head>
 <body bgcolor="#FFFFFF">  <body bgcolor="FFFFFF">
 <h1>Printout</h1>  <hr>
 <img src="/adm/lonKaputt/lonconstruct.gif">  ENDPART
   
       my $choice = $ENV{'form.choice'};
       my $layout = $ENV{'form.layout'};
       my $numberofcolumns = $ENV{'form.numberofcolumns'};  
       my $papersize = $ENV{'form.papersize'};          
       my $laystyle = 'book';
       my $assignment =  $ENV{'form.assignment'};
       if ($choice eq 'Subdirectory print') {
    if ($ENV{'form.layout'} eq '') {$layout = 'CAPA';}
    if ($ENV{'form.papersize'} eq '') {$papersize = 'Letter [8 1/2x11 in]';}
    if ($ENV{'form.numberofcolumns'} eq '') {$numberofcolumns = 2;}
       }
       if (($choice eq 'Standard LaTeX output for current document') &&
    ($ENV{'form.url'}=~m|^/~|)) {
    if ($ENV{'form.layout'} eq '') {$layout = 'CAPA';}
    if ($ENV{'form.papersize'} eq '') {$papersize = 'Letter [8 1/2x11 in]';}
    if ($ENV{'form.numberofcolumns'} eq '') {$numberofcolumns = 2;}
       }
       my $result = '';
       my $number_of_columns = 1; #used only for pages to determine the width of the cell
       my $selectionmade = '';
       my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$layout,$numberofcolumns);
       if ($numberofcolumns == 1) {
    $textwidth=$ENV{'form.width'};
    $textheight=$ENV{'form.height'};
       }
       my $LaTeXwidth; 
       if ($textwidth=~/(\d+\s*cm)/) {
    $LaTeXwidth = $1*10;
       } elsif ($textwidth=~/(\d+\s*mm)/) {
    $LaTeXwidth = $1;
       }
       if ($choice eq 'Standard LaTeX output for current document') {
         #-- single document - problem, page, html, xml, ...  
         $selectionmade = 1;
         if ($ENV{'form.url'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
           my %moreenv;
           $moreenv{'form.grade_target'}='tex';
           if (&Apache::lonnet::allowed('bre',$ENV{'form.url'})) {
     $ENV{'form.url'}=~s/http:\/\/[^\/]+//;
           }
           $moreenv{'request.filename'}=$ENV{'form.url'};
           $moreenv{'form.textwidth'}=$LaTeXwidth;
           &Apache::lonnet::appenv(%moreenv);
           my $texversion=&Apache::lonnet::ssi($ENV{'form.url'});
           &Apache::lonnet::delenv('form.grade_target','form.textwidth','form.counter');
           $result .= $texversion;
           if ($ENV{'form.url'}=~m/\.page\s*$/) {
     ($result,$number_of_columns) = &page_cleanup($result);
           }
         } else {
     $result='\documentclass[letterpaper]{article}\usepackage{calc}\begin{document}Printout of this type of document is currently not supported: ';
     if ($ENV{'form.url'}=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) {
         $result.=$1;
     } else {
         $result.=$ENV{'form.url'};
     }
     $result.=' \end{document}'
         }
       } elsif ($choice eq 'Standard LaTeX output for the primary sequence' or 
                $choice eq 'Standard LaTeX output for whole primary sequence') {
         #-- minimal sequence to which the current document belongs
           #-- where is the primary sequence containing file?
           my @master_seq = ();
    for (my $i=0; $i<$ENV{'form.numberoffiles'};$i++) {
       if ($ENV{'form.whatfile'.$i}=~/\S/) {
    push @master_seq,$ENV{'form.whatfile'.$i};
       }
    }
           #-- produce an output string
    my $flag_latex_header_remove = 'NO';
    my $flag_page_in_sequence = 'NO';
    for (my $i=0;$i<=$#master_seq;$i++) {
              my ($urlp,$symb) = split /&&/, $master_seq[$i];
       if ($choice eq 'Standard LaTeX output for the primary sequence') {
                 $selectionmade = 2;
       } elsif ($choice eq 'Standard LaTeX output for whole primary sequence') {
                 $selectionmade = 3;
       }
      my %moreenv;
      $moreenv{'form.grade_target'}='tex';
      $moreenv{'form.textwidth'}=$LaTeXwidth;
      &Apache::lonnet::appenv(%moreenv);
      #&Apache::lonnet::logthis("Trying to get $urlp with symb $symb");
      my $texversion=&Apache::lonnet::ssi($urlp,('symb'=>$symb));
      &Apache::lonnet::delenv('form.grade_target','form.textwidth');
      if ($urlp =~ m/\.page/) {
        ($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
        if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;} 
        $texversion =~ s/\\end{document}\d*/\\end{document}/;
        $flag_page_in_sequence = 'YES';
      } 
      if ($flag_latex_header_remove ne 'NO') {
        $texversion = &latex_header_footer_remove($texversion);
      } else {
        $texversion =~ s/\\end{document}//;
      }
      $result .= $texversion;         
      $flag_latex_header_remove = 'YES';   
    }
    &Apache::lonnet::delenv('form.counter');
    if ($flag_page_in_sequence eq 'YES') {$result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;}
    $result .= '\end{document}';
       }  elsif ($choice eq 'Standard LaTeX output for the top level sequence') {
           # where is the main sequence of the course?
    $selectionmade = 4;
    my $main_seq=&Apache::lonnet::clutter($ENV{'request.course.uri'});
    my @file_seq = &coming_from_hash($main_seq);
    for (my $i=0;$i<=$#file_seq;$i++) {
       my ($path,$title,$symb) = split /&&/,$file_seq[$i];
       $file_seq[$i] = $path.'&&'.$symb;
    }
    my $flag_latex_header_remove = 'NO';
           #-- produce an output string
    for (my $i=0;$i<=$#file_seq;$i++) {
      if (not $file_seq[$i]=~/^&&/) {
        my ($urlp,$symb) = split /&&/, $file_seq[$i];
        $urlp=~s/\/home\/httpd\/html//;    
        if ($urlp=~m/\.(problem|exam|quiz|assess|survey|form|library)/) {
    my %moreenv;
    $moreenv{'form.grade_target'}='tex';
    $moreenv{'form.textwidth'}=$LaTeXwidth;
    &Apache::lonnet::appenv(%moreenv);
    my $texversion=&Apache::lonnet::ssi($urlp,('symb'=>$symb));
    &Apache::lonnet::delenv('form.grade_target','form.textwidth');    
    if ($flag_latex_header_remove ne 'NO') {
       $texversion = &latex_header_footer_remove($texversion);
    } else {
       $texversion =~ s/\\end{document}//;
    }
    $result .= $texversion;  
    $flag_latex_header_remove = 'YES';
        }
      }
    }    
    $result .= '\end{document}';
       } elsif ($choice eq 'All class print') { 
       #-- prints assignments for whole class or for selected students  
    $selectionmade = 5;
           my @students = ();
    for (my $i=0; $i<$ENV{'form.numberofstudents'};$i++) {
       if ($ENV{'form.whomtoprint'.$i}=~/:/) {
    push @students,$ENV{'form.whomtoprint'.$i};
       }
    }
    #where is the primary sequence containing current resource (the same for all students)?
    my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'});
    my @sequence = split('___',$symbolic);
    my $primary_sequence;
   
    $primary_sequence=&Apache::lonnet::clutter($sequence[0]);
    my @master_seq = &coming_from_hash($primary_sequence); 
    for (my $i=0;$i<=$#master_seq;$i++) {
       my ($path,$title,$symb) = split /&&/,$master_seq[$i];
       $master_seq[$i] = $path.'&&'.$symb;
    }
           #loop over students
    my $flag_latex_header_remove = 'NO'; 
    my %moreenv;
    $moreenv{'form.textwidth'}=$LaTeXwidth;
    &Apache::lonnet::appenv(%moreenv);
    foreach my $person (@students) {
       my $current_output = ''; 
       my ($usersection,$username,$userdomain) = split /:/,$person;
       my $fullname = &Apache::grades::get_fullname($username,$userdomain);    
               #goes through all resources, checks if they are available for current student, and produces output   
       foreach my $curresline (@master_seq)  {
    my ($curres,$symb) = split /&&/, $curresline;
                   if ($curres=~ m/\.(problem|exam|quiz|assess|survey|form|library)/) {
       my ($map,$id,$res_url) = split(/___/,$symb);
       if (&Apache::lonnet::allowed('bre',$res_url)) {
    my $rendered = &Apache::loncommon::get_student_view($symb,$username,$userdomain,
                                                                           $ENV{'request.course.id'},'tex');
    if ($flag_latex_header_remove eq 'YES') {
       $rendered = &latex_header_footer_remove($rendered);
    } else {
       $rendered =~ s/\\end{document}//;
    }
    $current_output .= $rendered;
       }
       $flag_latex_header_remove = 'YES';
    }
       }
       my $courseidinfo = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
       if ($current_output=~/\\documentclass/) {
    $current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{} \\begin{document}\\noindent\\lhead{\\textit{\\textbf{$fullname}} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}\\vskip 3 mm /;
       } else {
    my $blanspages = '';
    for (my $j=0;$j<$ENV{'form.addedpages'};$j++) {$blanspages.='\clearpage\strut\clearpage';}
    $current_output = '\strut\\newline\\noindent\\makebox[\\textwidth/$number_of_columns][b]{\\hrulefill}\\newline\\noindent{\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License }\\newpage \\vskip 3mm'.$blanspages.'\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$fullname.'}} - '.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}\hskip 1.4in } \vskip 5 mm '.$current_output;
       }
       $result .= $current_output;
       &Apache::lonnet::delenv('form.counter');    
       &Apache::lonxml::init_counter(); 
    }
    $result .= '\end{document}';
    &Apache::lonnet::delenv('form.textwidth');
       } elsif ($choice eq 'Subdirectory print') {      
       #prints selected problems from the subdirectory 
    $selectionmade = 6;
           my @list_of_files = ();
    for (my $i=0; $i<$ENV{'form.numberofproblems'};$i++) {
       if ($ENV{'form.whattoprint'.$i}=~/^\//) {
    push @list_of_files,$ENV{'form.whattoprint'.$i};
       }
    }
    my $flag_latex_header_remove = 'NO';  
    for (my $i=0;$i<=$#list_of_files;$i++) {
       my $urlp = $list_of_files[$i];
       if ($urlp=~/\//) {
    my %moreenv;
    $moreenv{'form.grade_target'}='tex';
    $moreenv{'form.textwidth'}=$LaTeXwidth;
    &Apache::lonnet::appenv(%moreenv);
    if ($urlp =~ m|/home/([^/]+)/public_html|) {
       $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
    } else {
       $urlp =~ s|^/home/httpd/html||;
    }
    my $texversion=&Apache::lonnet::ssi($urlp);
    &Apache::lonnet::delenv('form.grade_target','form.textwidth');
                   #this chunck is responsible for printing the path to problem
    my $newurlp = '';
    my $HowMany = length($urlp)*2;
    if ($HowMany > $LaTeXwidth) {
       my @temporrary = split '/',$urlp;
       my $HowManyNew = 0;
       for (my $ii=0;$ii<=$#temporrary;$ii++) {
    if ($temporrary[$ii] ne '') {
       $HowManyNew += length($temporrary[$ii])*2;
       if ($HowManyNew < $LaTeXwidth ) {
    $newurlp .=  '/'.$temporrary[$ii];
       } else {
    $HowManyNew = 0;
    $newurlp .=  '|\vskip -1 mm \noindent \verb|';
    $ii--;
       }
    }
       }
    }
    $texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 {\\small\\noindent\\verb|$newurlp\|\\vskip 0 mm}/;
    if ($flag_latex_header_remove ne 'NO') {
       $texversion = &latex_header_footer_remove($texversion);
    } else {
       $texversion =~ s/\\end{document}//;
    }
    $result .= $texversion;
       }
       $flag_latex_header_remove = 'YES';  
    }
    $result .= '\end{document}';      
       }
   #-------------------------------------------------------- corrections for the different page formats
       $result = &page_format_transformation($papersize,$layout,$numberofcolumns,$choice,$result,$assignment);
       if ($layout eq 'CBI') {
           $laystyle = 'album';
       }
       $result = &latex_corrections($number_of_columns,$result);
       #changes page's parameters for the one column output 
       if ($ENV{'form.numberofcolumns'} == 1) {
    $result =~ s/\\textwidth= 9cm/\\textwidth= $ENV{'form.width'}/;
    $result =~ s/\\textheight 25\.9cm/\\textheight $ENV{'form.height'}/;
    $result =~ s/\\evensidemargin = -0\.57in/\\evensidemargin= $ENV{'form.leftmargin'}/;
    $result =~ s/\\oddsidemargin = -0\.57in/\\oddsidemargin= $ENV{'form.leftmargin'}/;
       }
   #-- writing .tex file in prtspool 
       my $temp_file;
       my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
       unless ($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&$laystyle&$numberofcolumns&$selectionmade">
 </body>  </body>
 </html>  </html>
 ENDDOCUMENT  FINALEND
   }
   
   
   sub coming_from_hash {
   
       my $mainsequence = shift;
       my @resourcelist = ();
       my $mapid = $hash{'map_pc_'.$mainsequence};
       my $mapstart = $hash{'map_start_'.$mainsequence};
       my $mapfinish = $hash{'map_finish_'.$mainsequence};
       my $current_resource = $mapstart;
       while ($current_resource ne $mapfinish) {
    if ($hash{'src_'.$current_resource}=~/\.sequence$/) {
       push @resourcelist,&coming_from_hash($hash{'src_'.$current_resource});
    } else {
       my $presymb=&Apache::lonnet::declutter($mainsequence);
       my $rid = $current_resource;
       if ($rid=~/,/) {
    my @rid = split /,/, $rid;
    foreach my $rid_element (@rid) {
       if ($rid_element =~ m/^$mapid\.(\d*)/) {
    $rid = $1; 
    last;
       }
    }
       } else {
           $rid =~ m/^$mapid\.(\d*)/;
                   $rid = $1;  
       }
       my $symb = $presymb.'___'.$rid.'___'.
    &Apache::lonnet::declutter($hash{'src_'.$current_resource});
       push @resourcelist,$hash{'src_'.$current_resource}.'&&'.$hash{'title_'.$current_resource}.'&&'.$symb;
    }
    $current_resource = $hash{'goesto_'.$hash{'to_'.$current_resource}};
       } 
       #needs if final resource in the map (type="finish") contains something
    if ($hash{'src_'.$current_resource}=~/\.sequence$/) {
       push @resourcelist,&coming_from_hash($hash{'src_'.$current_resource});
    } else {
       my $presymb=&Apache::lonnet::declutter($mainsequence);
       my $rid = $current_resource;
       if ($rid=~/,/) {
    my @rid = split /,/, $rid;
    foreach my $rid_element (@rid) {
       if ($rid_element =~ m/^$mapid\.(\d*)/) {
    $rid = $1; 
    last;
       }
    }
       } else {
           $rid =~ m/^$mapid\.(\d*)/;
                   $rid = $1;  
       }
       my $symb = $presymb.'___'.$rid.'___'.
    &Apache::lonnet::declutter($hash{'src_'.$current_resource});
       push @resourcelist,$hash{'src_'.$current_resource}.'&&'.$hash{'title_'.$current_resource}.'&&'.$symb;
    }
    $current_resource = $hash{'goesto_'.$hash{'to_'.$current_resource}};
       return @resourcelist;
   }
   
   
   sub latex_header_footer_remove {
       my $text = shift;
       $text =~ s/\\end{document}//;
       $text =~ s/\\documentclass([^&]*)\\begin{document}//;
       return $text;
   }
   
   
   sub character_chart {
       my $result = shift;
       $result =~ s/&\#0?0?(7|9);//g;
       $result =~ s/&\#0?(10|13);//g;
       $result =~ s/&\#0?32;/ /g;
       $result =~ s/&\#0?33;/!/g;
       $result =~ s/&(\#0?34|quot);/\"/g;
       $result =~ s/&\#0?35;/\\\#/g;
       $result =~ s/&\#0?36;/\\\$/g;
       $result =~ s/&\#0?37;/\\%/g; 
       $result =~ s/&(\#0?38|amp);/\\&/g; 
       $result =~ s/&\#(0?39|146);/\'/g;
       $result =~ s/&\#0?40;/(/g;
       $result =~ s/&\#0?41;/)/g;
       $result =~ s/&\#0?42;/\*/g;
       $result =~ s/&\#0?43;/\+/g;
       $result =~ s/&\#(0?44|130);/,/g;
       $result =~ s/&\#0?45;/-/g;
       $result =~ s/&\#0?46;/\./g;
       $result =~ s/&\#0?47;/\//g;
       $result =~ s/&\#0?48;/0/g;
       $result =~ s/&\#0?49;/1/g;
       $result =~ s/&\#0?50;/2/g;
       $result =~ s/&\#0?51;/3/g;
       $result =~ s/&\#0?52;/4/g;
       $result =~ s/&\#0?53;/5/g;
       $result =~ s/&\#0?54;/6/g;
       $result =~ s/&\#0?55;/7/g;
       $result =~ s/&\#0?56;/8/g;
       $result =~ s/&\#0?57;/9/g;
       $result =~ s/&\#0?58;/:/g;
       $result =~ s/&\#0?59;/;/g;
       $result =~ s/&(\#0?60|lt|\#139);/\$<\$/g;
       $result =~ s/&\#0?61;/\$=\$/g;
       $result =~ s/&(\#0?62|gt|\#155);/\$>\$/g;
       $result =~ s/&\#0?63;/\?/g;
       $result =~ s/&\#0?65;/A/g;
       $result =~ s/&\#0?66;/B/g;
       $result =~ s/&\#0?67;/C/g;
       $result =~ s/&\#0?68;/D/g;
       $result =~ s/&\#0?69;/E/g;
       $result =~ s/&\#0?70;/F/g;
       $result =~ s/&\#0?71;/G/g;
       $result =~ s/&\#0?72;/H/g;
       $result =~ s/&\#0?73;/I/g;
       $result =~ s/&\#0?74;/J/g;
       $result =~ s/&\#0?75;/K/g;
       $result =~ s/&\#0?76;/L/g;
       $result =~ s/&\#0?77;/M/g;
       $result =~ s/&\#0?78;/N/g;
       $result =~ s/&\#0?79;/O/g;
       $result =~ s/&\#0?80;/P/g;
       $result =~ s/&\#0?81;/Q/g;
       $result =~ s/&\#0?82;/R/g;
       $result =~ s/&\#0?83;/S/g;
       $result =~ s/&\#0?84;/T/g;
       $result =~ s/&\#0?85;/U/g;
       $result =~ s/&\#0?86;/V/g;
       $result =~ s/&\#0?87;/W/g;
       $result =~ s/&\#0?88;/X/g;
       $result =~ s/&\#0?89;/Y/g;
       $result =~ s/&\#0?90;/Z/g;
       $result =~ s/&\#0?91;/[/g;
       $result =~ s/&\#0?92;/\$\\setminus\$/g;
       $result =~ s/&\#0?93;/]/g;
       $result =~ s/&\#(0?94|136);/\$\\wedge\$/g;
       $result =~ s/&\#(0?95|138|154);/\\underline{\\makebox[2mm]{\\strut}}/g;
       $result =~ s/&\#(0?96|145);/\`/g;
       $result =~ s/&\#0?97;/a/g;
       $result =~ s/&\#0?98;/b/g;
       $result =~ s/&\#0?99;/c/g;
       $result =~ s/&\#100;/d/g;
       $result =~ s/&\#101;/e/g;
       $result =~ s/&\#102;/f/g;
       $result =~ s/&\#103;/g/g;
       $result =~ s/&\#104;/h/g;
       $result =~ s/&\#105;/i/g;
       $result =~ s/&\#106;/j/g;
       $result =~ s/&\#107;/k/g;
       $result =~ s/&\#108;/l/g;
       $result =~ s/&\#109;/m/g;
       $result =~ s/&\#110;/n/g;
       $result =~ s/&\#111;/o/g;
       $result =~ s/&\#112;/p/g;
       $result =~ s/&\#113;/q/g;
       $result =~ s/&\#114;/r/g;
       $result =~ s/&\#115;/s/g;
       $result =~ s/&\#116;/t/g;
       $result =~ s/&\#117;/u/g;
       $result =~ s/&\#118;/v/g;
       $result =~ s/&\#119;/w/g;
       $result =~ s/&\#120;/x/g;
       $result =~ s/&\#121;/y/g;
       $result =~ s/&\#122;/z/g;
       $result =~ s/&\#123;/\\{/g;
       $result =~ s/&\#124;/\|/g;
       $result =~ s/&\#125;/\\}/g;
       $result =~ s/&\#126;/\~/g;
       $result =~ s/&\#131;/\\textflorin /g;
       $result =~ s/&\#132;/\"/g;
       $result =~ s/&\#133;/\$\\ldots\$/g;
       $result =~ s/&\#134;/\$\\dagger\$/g;
       $result =~ s/&\#135;/\$\\ddagger\$/g;
       $result =~ s/&\#137;/\\textperthousand /g;
       $result =~ s/&\#140;/{\\OE}/g;
       $result =~ s/&\#147;/\`\`/g;
       $result =~ s/&\#148;/\'\'/g;
       $result =~ s/&\#149;/\$\\bullet\$/g;
       $result =~ s/&\#150;/--/g;
       $result =~ s/&\#151;/---/g;
       $result =~ s/&\#152;/\$\\sim\$/g;
       $result =~ s/&\#153;/\\texttrademark /g;
       $result =~ s/&\#156;/\\oe/g;
       $result =~ s/&\#159;/\\\"Y/g;
       $result =~ s/&(\#160|nbsp);//g;
       $result =~ s/&(\#161|iexcl);/!\`/g;
       $result =~ s/&(\#162|cent);/\\textcent /g;
       $result =~ s/&(\#163|pound);/\\pounds /g; 
       $result =~ s/&(\#164|curren);/\\textcurrency /g;
       $result =~ s/&(\#165|yen);/\\textyen /g;
       $result =~ s/&(\#166|brvbar);/\\textbrokenbar /g;
       $result =~ s/&(\#167|sect);/\\textsection /g;
       $result =~ s/&(\#168|uml);/\\texthighdieresis /g;
       $result =~ s/&(\#169|copy);/\\copyright /g;
       $result =~ s/&(\#170|ordf);/\\textordfeminine /g;
       $result =~ s/&(\#172|not);/\$\\neg\$/g;
       $result =~ s/&(\#173|shy);/ - /g;
       $result =~ s/&(\#174|reg);/\\textregistered /g;
       $result =~ s/&(\#175|macr);/\$^{-}\$/g;
       $result =~ s/&(\#176|deg);/\$^{\\circ}\$/g;
       $result =~ s/&(\#177|plusmn);/\$\\pm\$/g;
       $result =~ s/&(\#178|sup2);/\$^2\$/g;
       $result =~ s/&(\#179|sup3);/\$^3\$/g;
       $result =~ s/&(\#180|acute);/\\textacute /g;
       $result =~ s/&(\#181|micro);/\$\\mu\$/g;
       $result =~ s/&(\#182|para);/\\P/g;
       $result =~ s/&(\#183|middot);/\$\\cdot\$/g;
       $result =~ s/&(\#184|cedil);/\\c{\\strut}/g;
       $result =~ s/&(\#185|sup1);/\$^1\$/g;
       $result =~ s/&(\#186|ordm);/\\textordmasculine /g;
       $result =~ s/&(\#188|frac14);/\\textonequarter /g;
       $result =~ s/&(\#189|frac12);/\\textonehalf /g;
       $result =~ s/&(\#190|frac34);/\\textthreequarters /g;
       $result =~ s/&(\#191|iquest);/?\`/g;   
       $result =~ s/&(\#192|Agrave);/\\\`{A}/g;  
       $result =~ s/&(\#193|Aacute);/\\\'{A}/g; 
       $result =~ s/&(\#194|Acirc);/\\^{A}/g;
       $result =~ s/&(\#195|Atilde);/\\~{A}/g;
       $result =~ s/&(\#196|Auml);/\\\"{A}/g; 
       $result =~ s/&(\#197|Aring);/{\\AA}/g;
       $result =~ s/&(\#198|AElig);/{\\AE}/g;
       $result =~ s/&(\#199|Ccedil);/\\c{c}/g;
       $result =~ s/&(\#200|Egrave);/\\\`{E}/g;  
       $result =~ s/&(\#201|Eacute);/\\\'{E}/g;    
       $result =~ s/&(\#202|Ecirc);/\\^{E}/g;
       $result =~ s/&(\#203|Euml);/\\\"{E}/g;
       $result =~ s/&(\#204|Igrave);/\\\`{I}/g;
       $result =~ s/&(\#205|Iacute);/\\\'{I}/g;    
       $result =~ s/&(\#206|Icirc);/\\^{I}/g;
       $result =~ s/&(\#207|Iuml);/\\\"{I}/g;    
       $result =~ s/&(\#209|Ntilde);/\\~{N}/g;
       $result =~ s/&(\#210|Ograve);/\\\`{O}/g;
       $result =~ s/&(\#211|Oacute);/\\\'{O}/g;
       $result =~ s/&(\#212|Ocirc);/\\^{O}/g;
       $result =~ s/&(\#213|Otilde);/\\~{O}/g;
       $result =~ s/&(\#214|Ouml);/\\\"{O}/g;    
       $result =~ s/&(\#215|times);/\$\\times\$/g;
       $result =~ s/&(\#216|Oslash);/{\\O}/g;
       $result =~ s/&(\#217|Ugrave);/\\\`{U}/g;    
       $result =~ s/&(\#218|Uacute);/\\\'{U}/g;
       $result =~ s/&(\#219|Ucirc);/\\^{U}/g;
       $result =~ s/&(\#220|Uuml);/\\\"{U}/g;
       $result =~ s/&(\#221|Yacute);/\\\'{Y}/g;
       $result =~ s/&(\#223|szlig);/\\ss/g;
       $result =~ s/&(\#224|agrave);/\\\`{a}/g;
       $result =~ s/&(\#225|aacute);/\\\'{a}/g;
       $result =~ s/&(\#226|acirc);/\\^{a}/g;
       $result =~ s/&(\#227|atilde);/\\~{a}/g;
       $result =~ s/&(\#228|auml);/\\\"{a}/g;
       $result =~ s/&(\#229|aring);/{\\aa}/g;
       $result =~ s/&(\#230|aelig);/{\\ae}/g;
       $result =~ s/&(\#231|ccedil);/\\c{c}/g;
       $result =~ s/&(\#232|egrave);/\\\`{e}/g;
       $result =~ s/&(\#233|eacute);/\\\'{e}/g;
       $result =~ s/&(\#234|ecirc);/\\^{e}/g;
       $result =~ s/&(\#235|euml);/\\\"{e}/g;
       $result =~ s/&(\#236|igrave);/\\\`{i}/g;
       $result =~ s/&(\#237|iacute);/\\\'{i}/g;
       $result =~ s/&(\#238|icirc);/\\^{i}/g;
       $result =~ s/&(\#239|iuml);/\\\"{i}/g;
       $result =~ s/&(\#240|eth);/\$\\partial\$/g;
       $result =~ s/&(\#241|ntilde);/\\~{n}/g;
       $result =~ s/&(\#242|ograve);/\\\`{o}/g;
       $result =~ s/&(\#243|oacute);/\\\'{o}/g;
       $result =~ s/&(\#244|ocirc);/\\^{o}/g;
       $result =~ s/&(\#245|otilde);/\\~{o}/g;
       $result =~ s/&(\#246|ouml);/\\\"{o}/g;
       $result =~ s/&(\#247|divide);/\$\\div\$/g;
       $result =~ s/&(\#248|oslash);/{\\o}/g;
       $result =~ s/&(\#249|ugrave);/\\\`{u}/g; 
       $result =~ s/&(\#250|uacute);/\\\'{u}/g;
       $result =~ s/&(\#251|ucirc);/\\^{u}/g;
       $result =~ s/&(\#252|uuml);/\\\"{u}/g;
       $result =~ s/&(\#253|yacute);/\\\'{y}/g;
       $result =~ s/&(\#255|yuml);/\\\"{y}/g;
       $result =~ s/&\#952;/\$\\theta\$/g;
   #Greek Alphabet
       $result =~ s/&(alpha|\#945);/\$\\alpha \$/g;
       $result =~ s/&(beta|\#946);/\$\\beta \$/g;
       $result =~ s/&(gamma|\#947);/\$\\gamma \$/g;
       $result =~ s/&(delta|\#948);/\$\\delta \$/g;
       $result =~ s/&(epsilon|\#949);/\$\\epsilon \$/g;
       $result =~ s/&(zeta|\#950);/\$\\zeta \$/g;
       $result =~ s/&(eta|\#951);/\$\\eta \$/g;
       $result =~ s/&(theta|\#952);/\$\\theta \$/g;
       $result =~ s/&(iota|\#953);/\$\\iota \$/g;
       $result =~ s/&(kappa|\#954);/\$\\kappa \$/g;
       $result =~ s/&(lambda|\#955);/\$\\lambda \$/g;
       $result =~ s/&(mu|\#956);/\$\\mu \$/g;
       $result =~ s/&(nu|\#957);/\$\\nu \$/g;
       $result =~ s/&(xi|\#958);/\$\\xi \$/g;
       $result =~ s/&(pi|\#960);/\$\\pi \$/g;
       $result =~ s/&(rho|\#961);/\$\\rho \$/g;
       $result =~ s/&(sigma|\#963);/\$\\sigma \$/g;
       $result =~ s/&(tau|\#964);/\$\\tau \$/g;
       $result =~ s/&(upsilon|\#965);/\$\\upsilon \$/g;
       $result =~ s/&(phi|\#966);/\$\\phi \$/g;
       $result =~ s/&(chi|\#967);/\$\\chi \$/g;
       $result =~ s/&(psi|\#968);/\$\\psi \$/g;
       $result =~ s/&(omega|\#969);/\$\\omega \$/g;
       $result =~ s/&(Gamma|\#915);/\$\\Gamma \$/g;
       $result =~ s/&(Delta|\#916);/\$\\Delta \$/g;
       $result =~ s/&(Theta|\#920);/\$\\Theta \$/g;
       $result =~ s/&(Lambda|\#923);/\$\\Lambda \$/g;
       $result =~ s/&(Xi|\#926);/\$\\Xi \$/g;
       $result =~ s/&(Pi|\#928);/\$\\Pi \$/g;
       $result =~ s/&(Sigma|\#931);/\$\\Sigma \$/g;
       $result =~ s/&(Upsilon|\#933);/\$\\Upsilon \$/g;
       $result =~ s/&(Phi|\#934);/\$\\Phi \$/g;
       $result =~ s/&(Psi|\#936);/\$\\Psi \$/g;
       $result =~ s/&(Omega|\#937);/\$\\Omega \$/g;
   
       return $result;
   }
   
   
       sub page_format {
    my ($papersize,$layout,$numberofcolumns) = @_; 
    my ($textwidth,$textheight,$oddoffset,$evenoffset) = (0,0,0,0);
    if ($papersize=~/Letter/) {
       if ($layout eq 'CAPA') {
    if ($numberofcolumns == 1) {
       $textwidth = '18 cm';
       $textheight = '25.9 cm';
       $oddoffset = '-0.57 in';
       $evenoffset = '-0.57 in';
    } elsif ($numberofcolumns == 2) {
       $textwidth = '93 mm';
       $textheight = '25.9 cm';
       $oddoffset = '-0.57 in';
       $evenoffset = '-0.57 in';
    }
       } elsif ($layout eq 'CBI') {
    if ($numberofcolumns eq '1') {
       $textwidth = '8.8 in';
       $textheight = '6.8 in';
       $oddoffset = '-40 pt';
       $evenoffset = '-60 pt';
    } elsif ($numberofcolumns == 2) {
       $textwidth = '4.2 in';
       $textheight = '6.8 in';
       $oddoffset = '-40 pt';
       $evenoffset = '-60 pt';
    }
       }
   #    } elsif($papersize=~/Legal/) {
   #    } elsif($papersize=~/Ledger/) {
   #    } elsif($papersize=~/Executive/) {
       } elsif($papersize=~/A4/) {
       if ($layout eq 'CAPA') {
    if ($numberofcolumns == 1) {
       $textwidth = '18 cm';
       $textheight = '28 cm';
       $oddoffset = '-0.57 in';
       $evenoffset = '-0.57 in';
    } elsif ($numberofcolumns == 2) {
       $textwidth = '96 mm';
       $textheight = '2 cm';
       $oddoffset = '-0.57 in';
       $evenoffset = '-0.57 in';
    }
       } elsif ($layout eq 'CBI') {
    if ($numberofcolumns eq '1') {
       $textwidth = '8.5 in';
       $textheight = '7.7 in';
       $oddoffset = '-40 pt';
       $evenoffset = '-60 pt';
    } elsif ($numberofcolumns == 2) {
       $textwidth = '3.9 in';
       $textheight = '7.7 in';
       $oddoffset = '-40 pt';
       $evenoffset = '-60 pt';
    }
       }
   #    } elsif($papersize=~/A3/) {
   #    } elsif($papersize=~/A2/) {
   #    } elsif($papersize=~/A5/) {
   #    } elsif($papersize=~/A6/) {
    }
    return $textwidth,$textheight,$oddoffset,$evenoffset;
       }
   
   
   sub page_format_transformation {
       my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment) = @_; 
       my ($textwidth,$textheight,$oddoffset,$evenoffset);
    $assignment=~s/_/ /g;
           if ($numberofcolumns != 1) {
             ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$layout,$numberofcolumns);
    } else {
     ($textwidth,$textheight,$oddoffset,$evenoffset) = ($ENV{'form.width'},$ENV{'form.height'},$ENV{'form.leftmargin'},$ENV{'form.leftmargin'});
    }
       my $firstname = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'environment.firstname'}),'','','header');
       my $lastname = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'environment.lastname'}),'','','header');
       my $courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'course.'.$ENV{'request.course.id'}.'.description'}),'','','header');
       if ($layout eq 'CBI') {
       $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$oddoffset}\\setlength{\\evensidemargin}{$evenoffset}\\setlength{\\topmargin}{200pt}\\setlength{\\textwidth}{$textwidth}\\setlength{\\textheight}{$textheight}\\setlength{\\parindent}{20pt}\\setlength{\\marginparwidth}{90pt}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm} \\begin{document}\\setcounter{page}{1}\\noindent\\parbox{\\minipagewidth}{\\noindent\\fbox{\\textbf{$firstname $lastname}} \\hfill  $courseidinfo} \\vskip 5 mm /;
       } elsif ($layout eq 'CAPA') {
    if ($choice ne 'All class print') { 
    $text =~ s/\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{}\\lhead{\\textbf{$firstname $lastname} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1}/;
    } else {
       $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\begin{document}\\voffset=-0\.8cm\\setcounter{page}{1}  \\vskip 5 mm /;
   
    }
       }
       return $text;
   }
   
   
   sub page_cleanup {
       my $result = shift;
    
       $result =~ m/\\end{document}(\d*)$/;
       my $number_of_columns = $1;
       my $insert = '{';
       for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
       $insert .= '}';
       $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE\\endfirsthead\\endhead/$1$insert/g;
       $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
       return $result,$number_of_columns;
   }
   
   
   sub details_for_menu {
   
       my $name_of_resourse = $hash{'title_'.$hash{'ids_'.$ENV{'form.postdata'}}};
       my $symbolic = &Apache::lonnet::symbread($ENV{'form.postdata'});
       my ($map,$id,$resource)=split(/___/,$symbolic);
       $map=&Apache::lonnet::clutter($map);
       my $name_of_sequence;
       $name_of_sequence = $hash{'title_'.$hash{'ids_'.$map}};
       if ($name_of_sequence =~ /^\s*$/) {
    $map =~ m|([^/]+)$|;
    $name_of_sequence = $1;
       }
       my $name_of_map = $hash{'title_'.$hash{'ids_'.&Apache::lonnet::clutter($ENV{'request.course.uri'})}};
       if ($name_of_map =~ /^\s*$/) {
    $ENV{'request.course.uri'} =~ m|([^/]+)$|;
    $name_of_map = $1;
       }
       return ($name_of_resourse,$name_of_sequence,$name_of_map);
   
   }
   
   
   sub latex_corrections {
   
       my ($number_of_columns,$result) = @_;
   
       $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
       $result =~ s/\$number_of_columns/$number_of_columns/g;
       $result =~ s/(\\end{document})/\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill}\\newline\\noindent\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License  $1/;
       $result =~ s/(\\end{longtable}\s*)(\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
       $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
   #-- LaTeX corrections     
       my $first_comment = index($result,'<!--',0);
       while ($first_comment != -1) {
    my $end_comment = index($result,'-->',$first_comment);
    substr($result,$first_comment,$end_comment-$first_comment+3) = '';
    $first_comment = index($result,'<!--',$first_comment);
       }
       $result =~ s/^\s+$//gm; #remove empty lines
       $result =~ s/(\s)(\s+)/$1/g; #removes more than one empty space
       $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
       $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
       $result =~ s/{\\par }\s*\\\\/\\\\/gm;
    $result =~ s/\\\\\s+\[/ \[/g;
       $result =~ s/\b__+\b/\\makebox\[1 cm\]\[b\]{\\hrulefill}/g;
       #conversion of html characters to LaTeX equivalents
       if ($result =~ m/&(\w+|#\d+);/) {
    $result = &character_chart($result);
       }
       $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
       $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
   
       return $result;
   }
   
   
   sub handler {
   
       my $r = shift;
   
       # A hook for me to work without disturbing Alex.
       if ($ENV{'form.jeremy'}) {
           printWizard($r);
           return OK;
       }
   
       my $loaderror=&Apache::lonnet::overloaderror($r);
       if ($loaderror) { return $loaderror; }
       $loaderror=
          &Apache::lonnet::overloaderror($r,
            $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
       if ($loaderror) { return $loaderror; }
   
       $r->content_type('text/html');
       $r->send_http_header;
       $r->print(&Apache::loncommon::bodytag("Printing"));
   
       if ($ENV{'request.course.id'}) {
    my $fn=$ENV{'request.course.fn'};
    tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);
       }
   
   #-- start form
       &headerform($r);
   #-- menu for output
       unless  ($ENV{'form.phase'}) {
    &menu_for_output($r);
       }
   #-- additional menu for class printing
        if ($ENV{'form.phase'} eq 'two') {
    if($ENV{'form.choice'} eq 'Standard LaTeX output for whole primary sequence') {
        &sequence_content_menu(0,$r);
    } elsif($ENV{'form.choice'} eq 'Standard LaTeX output for the primary sequence') {
        &sequence_content_menu(1,$r);
    } elsif($ENV{'form.choice'} eq 'All class print') {
        &additional_class_menu($r);
    } elsif($ENV{'form.choice'} eq 'Subdirectory print') {
        &problem_choice_menu($r);
    } else {
        $ENV{'form.phase'} = 'three';
    }
        }
   #-- additional menu for page layout (one column case)
       if ($ENV{'form.phase'} eq 'three') {
    if($ENV{'form.numberofcolumns'} == 1) {
       &additional_print_menu($r);
    } else {
       $ENV{'form.phase'} = 'four';
    }
       }
   #-- core part 
       if ($ENV{'form.phase'} eq 'four') {
    &output_data($r);
       }
       untie %hash;
     return OK;      return OK;
      
 }   } 
   
   use Apache::lonwizard;
   
   sub printWizard {
       my $r = shift;
   
       if ($ENV{'request.course.id'}) {
    my $fn=$ENV{'request.course.fn'};
    tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);
       }
   
       if ($r->header_only) {
           if ($ENV{'browser.mathml'}) {
               $r->content_type('text/xml');
           } else {
               $r->content_type('text/html');
           }
           $r->send_http_header;
           return OK;
       }
   
       # Send header, nocache
       if ($ENV{'browser.mathml'}) {
           $r->content_type('text/xml');
       } else {
           $r->content_type('text/html');
       }
       &Apache::loncommon::no_cache($r);
       $r->send_http_header;
       $r->rflush();
   
       my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu;
   
       my $wizard = Apache::lonwizard->new("Printing Wizard", $ENV{QUERY_STRING});
       # PRINT_TYPE: What the user wants to print (current docs,
       #  whole sequence, etc.
       $wizard->declareVars(['PRINT_TYPE', 'FORMAT', 'postdata', 'url',
                             'symb', 'RESOURCES', 'FILES', 'STUDENTS']);
   
       # Extract map
       my $symb = $wizard->{VARS}->{'symb'};
       my ($map, $id, $url) = split(/__/, $symb);
   
       my $subdir = &Apache::lonnet::filelocation("", $ENV{'form.url'});
   
       # "Delete everything after the last slash."
       $subdir =~ s|/[^/]+$||;
   
       # This really ought to be in some repository in loncommon or
       # something where it can just be grabbed.
       my $problemFilter = sub { 
           my $name = shift;
           return $name =~ m/^[^\.]+\.(problem|exam|quiz|assess|survey|form|library)$/;
       };
   
       # What can be printed is a very dynamic decision based on
       # lots of factors. So we need to dynamically build this list.
       # To prevent security leaks, states are only added to the wizard
       # if they can be reached, which ensures manipulating the querystring
       # won't allow anyone to reach states they shouldn't have permission
       # to reach.
       my $printChoices = []; 
       # We can always print the current screen.
       push @{$printChoices}, ['current_document', "<b>$resourceTitle</b> (exactly what was on the screen)", 'CHOOSE_FORMAT'];
   
       if ($ENV{'form.postdata'}=~ /\/res\//) {
           # Allow problems from sequence
           push @{$printChoices}, ['map_problems', "Problems from <b>$sequenceTitle</b>", 'CHOOSE_PROBLEMS'];
           Apache::lonwizard::resource_multichoice->new($wizard, "CHOOSE_PROBLEMS", 'Select Problems', "Select problems to print from <b>$sequenceTitle</b>:", 'CHOOSE_FORMAT', 'RESOURCES', sub {my $res = shift; return $res->is_problem()}, undef, $map);
   
           # Allow all resources from sequence
           push @{$printChoices}, ['map_problems_pages', "Problems and pages from <b>$sequenceTitle</b>", 'CHOOSE_PROBLEMS_HTML'];
           Apache::lonwizard::resource_multichoice->new($wizard, "CHOOSE_PROBLEMS_HTML", 'Select Resources', "Select resources to print from <b>$sequenceTitle</b>:", "CHOOSE_FORMAT", 'RESOURCES', sub {my $res = shift; return !$res->is_map()}, undef, $map);
       }
   
       # If the user is priviledged, allow them to print all 
       # problems in the course, optionally for selected students
       if (($ENV{'request.role'}=~m/^cc\./ or $ENV{'request.role'}=~m/^in\./ or $ENV{'request.role'}=~m/^ta\./) and ($ENV{'form.postdata'}=~/\/res\//)) { 
           push @{$printChoices}, ['all_problems', '<b>All problems</b> in course (may take a lot of time)', 'CHOOSE_FORMAT'];
           push @{$printChoices}, ['problems_for_students', "Problems from <b>$sequenceTitle</b> for selected students", 'CHOOSE_STUDENTS'];
           Apache::lonwizard::choose_student->new($wizard, "CHOOSE_STUDENTS", "Choose Students", "Select the students you wish to print the problems for:", 'CHOOSE_FORMAT', 'STUDENTS', 1);
       }
   
       # FIXME: That RE should come from a library somewhere.
       if ((&Apache::lonnet::allowed('bre',$subdir) eq 'F') and ($ENV{'form.postdata'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)/)) {    
           push @{$printChoices}, ['problems_from_directory', "Problems from <b>$subdir</b>", 'CHOOSE_FROM_SUBDIR'];
           Apache::lonwizard::choose_files->new($wizard, "CHOOSE_FROM_SUBDIR", "Select Files","Select problems you wish to print from <b>$subdir</b>:", 'CHOOSE_FORMAT', 'FILES', $subdir, $problemFilter);
       }
   
       # Despite the appearance of states before here, this is the first state.
       Apache::lonwizard::switch_state->new($wizard, "START", "Selecting Resources to Print", "PRINT_TYPE", $printChoices, "What do you want to print?");
       Apache::lonprintout::page_format_state->new($wizard, "CHOOSE_FORMAT", "Page Format", "FORMAT");
   
       $r->print($wizard->display());
   
       untie %hash;
   
       return OK;
   }
   
   
 1;  1;
   
   package Apache::lonprintout::page_format_state;
   
   =pod
   
   =head1 Wizard state: page_format_state
   
   See lonwizard.pm documentation for discussion of the wizard framework.
   
   Apache::lonprintout::page_format_state is a state that gives the user an opportunity to select the page layout they wish to print with: Number of columns, portrait/landscape, and paper size. If you want to change the paper size choices, change the @paperSize array contents in this package.
   
   =over 4
   
   =item * B<new>(parentLonWizReference, stateName, stateTitle, varName, nextState): varName is where the print information will be stored in the format FIXME. nextState is the state that follows this one.
   
   =back
   
   =cut
   
   use Apache::lonwizard;
   
   no strict;
   @ISA = ("Apache::lonwizard::state");
   use strict;
   
   my $maxColumns = 2;
   my @paperSize = ("Letter [8 1/2x11 in]", "Legal [8 1/2x14 in]", 
                    "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]",
                    "A2 [420x594 mm]", "A3 [297x420 mm]", "A4 [210x297 mm]", 
                    "A5 [148x210 mm]", "A6 [105x148 mm]" );
   
   # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
   #                   Paper type
   
   sub new { 
       my $proto = shift;
       my $class = ref($proto) || $proto;
       my $self = bless $proto->SUPER::new(shift, shift, shift);
   
       $self->{VAR_NAME} = shift;
       $self->{NEXT_STATE} = shift;
       return $self;
   }
   
   sub render {
       my $self = shift;
       my $wizard = $self->{WIZARD};
       my $result = '';
       my $var = $self->{VAR_NAME};
       my $curVal = $self->{WIZARD}->{VARS}->{$var};
   
       my ($layout, $cols, $paper) = split(/\|/, $curVal);
   
       my $landscapeChecked = ($layout ne "L")? '' : 'checked ';
       my $portraitChecked = $landscapeChecked ? '' : 'checked ';
   
       $result .= <<STATEHTML;
   
   <p>How should the printing be formatted?</p>
   <table cellpadding="3">
     <tr>
       <td align="center"><b>Layout</b></td>
       <td align="center"><b>Columns</b></td>
       <td align="center"><b>Paper type</b></td>
     </tr>
     <tr>
       <td>
         <input type="radio" name="${var}.layout" value="L" $landscapeChecked> Landscape<br />
         <input type="radio" name="${var}.layout" value="P" $portraitChecked> Portrait
       </td>
       <td>
         <select name="${var}.cols">
   STATEHTML
   
       my $i;
       for ($i = 1; $i <= $maxColumns; $i++) {
           if ($i == $cols) {
               $result .= "<option value='$i' selected>$i</option>\n";
           } else {
               $result .= "<option value='$i'>$i</option>\n";
           }
       }
   
       $result .= "</select></td><td>\n";
       $result .= "<select name='${var}.paper'>\n";
   
       $i = 0;
       foreach (@paperSize) {
           if ($paper == $i) {
               $result .= "<option selected value='$i'>" . $paperSize[$i] . "</option>\n";
           } else {
               $result .= "<option value='$i'>" . $paperSize[$i] . "</option>\n";
           }
           $i++;
       }
   
       $result .= "</select></td></tr></table>";
       $result .= '<input type="hidden" name="printWizDone" value="1" />';
       return $result;
   }
   
   1;
   
 __END__  __END__
   
Removed from v.1.1  
changed lines
  Added in v.1.125

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