[BACK]Return to lonprintout.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface

Diff for /loncom/interface/lonprintout.pm between versions 1.13 and 1.138

version 1.13, 2002/01/22 10:42:57 version 1.138, 2003/05/01 15:01:04
Line 43  use strict; Line 43  use strict;
 use Apache::Constants qw(:common :http);  use Apache::Constants qw(:common :http);
 use Apache::lonxml;  use Apache::lonxml;
 use Apache::lonnet;  use Apache::lonnet;
   use Apache::loncommon;
 use Apache::inputtags;  use Apache::inputtags;
   use Apache::grades;
 use Apache::edit;  use Apache::edit;
 use Apache::File();  use Apache::File();
   use Apache::lonnavmaps;
   use POSIX qw(strftime);
   use GDBM_File;
   
   
   my %hash;
   my $LaTeXwidth = 0;
   
 sub headerform {  sub headerform {
     my $r = shift;      my $r = shift;
Line 58  sub headerform { Line 65  sub headerform {
 </head>  </head>
 <body bgcolor="FFFFFF">  <body bgcolor="FFFFFF">
 <form method="post" enctype="multipart/form-data" action="/adm/printout" name="printform">  <form method="post" enctype="multipart/form-data" action="/adm/printout" name="printform">
 <h1>Printout:</h1><br></br>  
 ENDHEADER  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 {  sub menu_for_output {
     my $r = shift;      my $r = shift;
     $r->print(<<ENDMENUOUT);      my ($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//;
       $r->print(<<ENDMENUOUT1);
   <h1>What do you want to print? Make a choice.</h1><br />
 <input type="hidden" name="phase" value="two">  <input type="hidden" name="phase" value="two">
 <input type="hidden" name="url" value="$ENV{'form.postdata'}">  <input type="hidden" name="url" value="$ENV{'form.postdata'}">
 <input type="radio" name="choice" value="Standard LaTeX output for current document">  Standard LaTeX output for current document<br />  <input type="hidden" name="assignment" value="$assignment">
 <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 current document" checked>  Current document <b>$title_for_single_resource</b>
 <input type="radio" name="choice" value="Standard LaTeX output for the top level sequence">  Standard LaTeX output for the top level sequence<br />  (prints what you just saw on the screen)<br />
 <input type="submit" value="Please make a choice">  ENDMENUOUT1
       if ($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;
               }
           }
       }
   
       function uncheckall() {
    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'});
      if ($section == -1) { $section = ''; }
              $r->print(
           '<br /><input type=checkbox name="whomtoprint'.$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>  </form>
 </body>  </body>
 </html>  </html>
Line 91  sub output_data { Line 446  sub output_data {
 ENDPART  ENDPART
   
     my $choice = $ENV{'form.choice'};      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 $result = '';
     my %mystyle;      my $number_of_columns = 1; #used only for pages to determine the width of the cell
     my $filename;      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') {      if ($choice eq 'Standard LaTeX output for current document') {
  $_ = $ENV{'form.url'};        #-- single document - problem, page, html, xml, ...  
  if (/\.problem/) {        $selectionmade = 1;
     my %moreenv;        if ($ENV{'form.url'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
     $moreenv{'form.grade_target'}='tex';          my %moreenv;
     &Apache::lonnet::appenv(%moreenv);          $moreenv{'form.grade_target'}='tex';
     my $texversion=&Apache::lonnet::ssi($ENV{'form.url'});          if (&Apache::lonnet::allowed('bre',$ENV{'form.url'})) {
     &Apache::lonnet::delenv('form.grade_target');    $ENV{'form.url'}=~s/http:\/\/[^\/]+//;
     $texversion =~ s!\.gif!\.eps!;          }
     $result .= $texversion;                  $moreenv{'request.filename'}=$ENV{'form.url'};
  } else {           $moreenv{'form.textwidth'}=$LaTeXwidth;
     my $file=&Apache::lonnet::filelocation("",$ENV{'form.url'});          &Apache::lonnet::appenv(%moreenv);
     my $filecontents=&Apache::lonnet::getfile($file);          my $texversion=&Apache::lonnet::ssi($ENV{'form.url'});
     $result = &Apache::lonxml::xmlparse('tex',$filecontents,'',%mystyle);          &Apache::lonnet::delenv('form.grade_target','form.textwidth','form.counter');
  }           $result .= $texversion;
     } elsif ($choice eq 'Standard LaTeX output for the primary sequence') {          if ($ENV{'form.url'}=~m/\.page\s*$/) {
  my @master_seq = ();    ($result,$number_of_columns) = &page_cleanup($result);
  my $keyword = 0;          }
  my $output_seq = '';        } else {
  my $current_file = '/res/'.$ENV{'request.ambiguous'};    $result='\documentclass[letterpaper]{article}\usepackage{calc}\begin{document}Printout of this type of document is currently not supported: ';
         $current_file =~ s/(\/res\/physnet\/physnet)(\/m\d+)\/(.*)/$1$2$2\.sequence/;    if ($ENV{'form.url'}=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) {
  while ($current_file ne '') {        $result.=$1;
     my $file=&Apache::lonnet::filelocation("",$current_file);    } else {
     my $filecontents=&Apache::lonnet::getfile($file);        $result.=$ENV{'form.url'};
     my @file_seq = &content_map($filecontents);    }
     if (defined @file_seq) {    $result.=' \end{document}'
 #-- adding an additional array to the master one        }
  if (defined @master_seq) {      } elsif ($choice eq 'Standard LaTeX output for the primary sequence' or 
                     my $old_value = $#master_seq;               $choice eq 'Standard LaTeX output for whole primary sequence') {
     my $total_value = $#master_seq + $#file_seq +2;        #-- minimal sequence to which the current document belongs
                     for (my $j=0; $j<=$old_value-$keyword+1; $j++) {          #-- where is the primary sequence containing file?
  $master_seq[$total_value-$j] = $master_seq[$old_value-$j];          my @master_seq = ();
     }   for (my $i=0; $i<$ENV{'form.numberoffiles'};$i++) {
                     for (my $j=0; $j<=$#file_seq; $j++){      if ($ENV{'form.whatfile'.$i}=~/\S/) {
  $master_seq[$keyword+$j] = $file_seq[$j];   push @master_seq,$ENV{'form.whatfile'.$i};
     }      }
     @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          #-- produce an output string
    my $flag_latex_header_remove = 'NO';
    my $flag_page_in_sequence = 'NO';
  for (my $i=0;$i<=$#master_seq;$i++) {   for (my $i=0;$i<=$#master_seq;$i++) {
     $_ = $master_seq[$i];             my ($urlp,$symb) = split /&&/, $master_seq[$i];
     m/\"(.*)\"/;      if ($choice eq 'Standard LaTeX output for the primary sequence') {
     if (index($1,'-tc.xml',0)==-1) {                $selectionmade = 2;
  my $file=&Apache::lonnet::filelocation("",$1);      } elsif ($choice eq 'Standard LaTeX output for whole primary sequence') {
  my $filecontents=&Apache::lonnet::getfile($file);                $selectionmade = 3;
  $output_seq .= $filecontents;  
     }      }
      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';   
  }   }
 #-- cleanup of output string (temporary cbi-specific)   &Apache::lonnet::delenv('form.counter');
  $output_seq =~ s/<physnet>//g;   if ($flag_page_in_sequence eq 'YES') {$result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;}
  $output_seq =~ s/<\/physnet>//g;   $result .= '\end{document}';
  $output_seq = '<physnet>'.$output_seq.' </physnet>';  
 #-- final accord  
  $result = &Apache::lonxml::xmlparse('tex',$output_seq,'',%mystyle);  
     }  elsif ($choice eq 'Standard LaTeX output for the top level sequence') {      }  elsif ($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;
   
 #-- where is the main sequence of the course?   $primary_sequence=&Apache::lonnet::clutter($sequence[0]);
    my @master_seq = &coming_from_hash($primary_sequence); 
  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++) {   for (my $i=0;$i<=$#master_seq;$i++) {
     $_ = $master_seq[$i];      my ($path,$title,$symb) = split /&&/,$master_seq[$i];
     m/\"(.*)\"/;      $master_seq[$i] = $path.'&&'.$symb;
             $_ = $1;   }
             my $urlp = $1;          #loop over students
             if (/\.problem/) {   my $flag_latex_header_remove = 'NO'; 
    my %moreenv;
    $moreenv{'form.textwidth'}=$LaTeXwidth;
    &Apache::lonnet::appenv(%moreenv);
    my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1);
    foreach my $person (@students) {
       my $current_output = ''; 
       my ($usersection,$username,$userdomain) = split /:/,$person;
       my $fullname = &get_name($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 .= $current_output;
       &Apache::lonnet::delenv('form.counter');    
       &Apache::lonxml::init_counter(); 
       &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
       'last student '.$fullname);
    }
    &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
    $result .= '\end{document}';
    &Apache::lonnet::delenv('form.textwidth');
       } elsif ($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;   my %moreenv;
  $moreenv{'form.grade_target'}='tex';   $moreenv{'form.grade_target'}='tex';
    $moreenv{'form.textwidth'}=$LaTeXwidth;
  &Apache::lonnet::appenv(%moreenv);   &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);   my $texversion=&Apache::lonnet::ssi($urlp);
  &Apache::lonnet::delenv('form.grade_target');   &Apache::lonnet::delenv('form.grade_target','form.textwidth');
  $texversion =~ s!\.gif!\.eps!;                  #this chunck is responsible for printing the path to problem
  $result .= $texversion;           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';  
  }   }
 #-- additional cleanup for output   $result .= '\end{document}';      
  my $first_app = index($result,'\documentclass',0);      }
  $first_app = index($result,'\documentclass',$first_app+5);  #-------------------------------------------------------- corrections for the different page formats
  while ($first_app != -1) {      $result = &page_format_transformation($papersize,$layout,$numberofcolumns,$choice,$result,$assignment);
     my $second_app = index($result,'begin{document}',$first_app);      if ($layout eq 'CBI') {
     $first_app = rindex($result,'\end{document}',$first_app);          $laystyle = 'album';
     substr($result,$first_app,$second_app-$first_app+15) = '\vskip 7 mm';      }
     $first_app = index($result,'\documentclass',$first_app+5);      $result = &latex_corrections($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   #-- writing .tex file in prtspool 
  {      my $temp_file;
     my $temp_file;      my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
     $filename = "/home/httpd/prtspool/$ENV{'environment.firstname'}$ENV{'environment.lastname'}temp$ENV{'user.login.time'}.tex";      unless ($temp_file = Apache::File->new('>'.$filename)) {
     unless ($temp_file = Apache::File->new('>'.$filename)) {   $r->log_error("Couldn't open $filename for output $!");
  $r->log_error("Couldn't open $filename for output $!");   return SERVER_ERROR; 
  return SERVER_ERROR;       } 
     }       print $temp_file $result;
  print $temp_file $result;  
  }  
 $r->print(<<FINALEND);  $r->print(<<FINALEND);
 <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename">  <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle&$numberofcolumns&$selectionmade">
 </body>  </body>
 </html>  </html>
 FINALEND  FINALEND
 }  }
   
   
   sub coming_from_hash {
   
       my $mainsequence = shift;
 sub content_map {      my @resourcelist = ();
 #-- find a list of files to print      my $mapid = $hash{'map_pc_'.$mainsequence};
     my $map_string = shift;      my $mapstart = $hash{'map_start_'.$mainsequence};
     my @number_seq = ();      my $mapfinish = $hash{'map_finish_'.$mainsequence};
     my @file_seq = ();      my $current_resource = $mapstart;
     my $startlink = index($map_string,'<link',0);      while ($current_resource ne $mapfinish) {
     my $endlink = index($map_string,'</link>',$startlink);   if ($hash{'src_'.$current_resource}=~/\.sequence$/) {
     my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);      push @resourcelist,&coming_from_hash($hash{'src_'.$current_resource});
     $_ = $chunk;   } else {
     m/from=\"(\d+)\"/;      my $presymb=&Apache::lonnet::declutter($mainsequence);
     push @number_seq,$1;      my $rid = $current_resource;
     while ($startlink != -1) {      if ($rid=~/,/) {
  $endlink = index($map_string,'</link>',$startlink);   my @rid = split /,/, $rid;
  $chunk = substr($map_string,$startlink,$endlink-$startlink+7);   foreach my $rid_element (@rid) {
  substr($map_string,$startlink,$endlink-$startlink+7) = '';      if ($rid_element =~ m/^$mapid\.(\d*)/) {
  $_ = $chunk;   $rid = $1; 
         m/to=\"(\d+)\"/;   last;
  push @number_seq,$1;      }
  $startlink = index($map_string,'from="'.$1.'"',$startlink);   }
     }      } else {
     my $stalink = index($map_string,' to="'.$number_seq[0].'"',$startlink);          $rid =~ m/^$mapid\.(\d*)/;
     while ($stalink != -1) {                  $rid = $1;  
  $startlink = rindex($map_string,'<link ',$stalink);      }
  $endlink = index($map_string,'</link>',$startlink);      my $symb = $presymb.'___'.$rid.'___'.
  $chunk = substr($map_string,$startlink,$endlink-$startlink+7);   &Apache::lonnet::declutter($hash{'src_'.$current_resource});
  substr($map_string,$startlink,$endlink-$startlink+7) = '';      push @resourcelist,$hash{'src_'.$current_resource}.'&&'.$hash{'title_'.$current_resource}.'&&'.$symb;
  $_ = $chunk;   }
         m/from=\"(\d+)\"/;   $current_resource = $hash{'goesto_'.$hash{'to_'.$current_resource}};
  unshift @number_seq,$1;      } 
  $stalink = index($map_string,' to="'.$number_seq[0].'"',0);      #needs if final resource in the map (type="finish") contains something
     }   if ($hash{'src_'.$current_resource}=~/\.sequence$/) {
     for (my $i=0;$i<=$#number_seq;$i++) {      push @resourcelist,&coming_from_hash($hash{'src_'.$current_resource});
  $stalink = index($map_string,' id="'.$number_seq[$i].'"',0);   } else {
         {          my $presymb=&Apache::lonnet::declutter($mainsequence);
     my $ahed1 = index($map_string,'src="',$stalink);      my $rid = $current_resource;
     my $ahed2 = index($map_string,'</resource>',$stalink);      if ($rid=~/,/) {
     if ($ahed1 != -1) {   my @rid = split /,/, $rid;
  if ($ahed1 < $ahed2) {   foreach my $rid_element (@rid) {
     $startlink = $ahed1;      if ($rid_element =~ m/^$mapid\.(\d*)/) {
  } else {   $rid = $1; 
     $startlink = rindex($map_string,'src="',$stalink);   last;
       }
  }   }
     } else {      } else {
  $startlink = rindex($map_string,'src="',$stalink);          $rid =~ m/^$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/) {
  }   }
  $startlink = index($map_string,'"',$startlink);   return $textwidth,$textheight,$oddoffset,$evenoffset;
  $endlink = index($map_string,'"',$startlink+1);  
  $chunk = substr($map_string,$startlink,$endlink-$startlink+1);  
  push @file_seq,$chunk;  
     }      }
     return @file_seq;  
   
   sub get_name {
       my ($uname,$udom)=@_;
       if (!defined($uname)) { $uname=$ENV{'user.name'}; }
       if (!defined($udom)) { $uname=$ENV{'user.domain'}; }
       my $plainname=&Apache::loncommon::plainname($uname,$udom);
       if ($plainname=~/^\s*$/) { $plainname=$uname; }
       return &Apache::lonxml::latex_special_symbols($plainname,undef,undef,
     'header');
 }  }
   
   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 $name = &get_name();
       if ($name =~ /^\s*$/) {
    $name=&Apache::lonxml::latex_special_symbols($ENV{'user.name'},undef,
        undef,'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}{$textheight}\\setlength{\\parindent}{20pt}\\setlength{\\marginparwidth}{90pt}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm} \\begin{document}\\setcounter{page}{1}\\noindent\\parbox{\\minipagewidth}{\\noindent\\fbox{\\textbf{$name}} \\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= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{}\\lhead{\\textbf{$name} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$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 {  sub handler {
   
     my $r = shift;      my $r = shift;
       my $helper;
   
       # A hook for me to work without disturbing Alex.
       if (!$ENV{'form.jeremy'}) {
           my $result = printHelper($r);
           if (!ref($result)) {
               return $result;
           }
           $helper = $result;
       }
   
       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->content_type('text/html');
     $r->send_http_header;      $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  #-- start form
     &headerform($r);      &headerform($r);
 #-- menu for output  #-- menu for output
     unless ($ENV{'form.phase'}) {      unless  ($ENV{'form.phase'}) {
  &menu_for_output($r);   &menu_for_output($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 {
       $ENV{'form.phase'} = 'four';
    }
       }
 #-- core part   #-- core part 
     if ($ENV{'form.phase'} eq 'two') {      if ($ENV{'form.phase'} eq 'four') {
  &output_data($r);   &output_data($r);
       }
       untie %hash;
       return OK;
      
   } 
   
   use Apache::lonhelper;
   
   sub printHelper {
       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();
   
       # Unfortunately, this helper is so complicated we have to
       # write it by hand
   
       Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
       
       my $helper = Apache::lonhelper::helper->new("Printing Wizard");
       
       # This will persistently load in the data we want from the
       # very first screen.
       if (defined($ENV{'form.symb'})) {
           $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
     }      }
       if (defined($ENV{'form.postdata'})) {
           $helper->{VARS}->{'postdata'} = $ENV{'form.postdata'};
       }
       if (defined($ENV{'form.url'})) {
           $helper->{VARS}->{'url'} = $ENV{'form.url'};
       }
   
       my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu;
       if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
           my $url = $helper->{VARS}->{'postdata'};
           $resourceTitle = substr($url, rindex($url, '/') + 1);
       }
   
       Apache::lonhelper::registerHelperTags();
   
       # Extract map
       my $symb = $helper->{VARS}->{'symb'};
       my ($map, $id, $url) = split(/__/, $symb);
   
       my $subdir = &Apache::lonnet::filelocation("", $helper->{VARS}->{'postdata'});
   
       # "Delete everything after the last slash."
       $subdir =~ s|/[^/]+$||;
   
       # 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 form input
       # won't allow anyone to reach states they shouldn't have permission
       # to reach.
   
       # printChoices is tracking the kind of printing the user can
       # do, and will be used in a choices construction later.
       # In the meantime we will be adding states and elements to
       # the helper by hand.
       my $printChoices = [];
       my $paramHash;
       # We can always print the current screen.
   
       push @{$printChoices}, ["<b>$resourceTitle</b> (exactly what was on the screen)", 'current_document', 'FINAL'];
   
       # If we're in a sequence...
       if ($helper->{VARS}->{'postdata'} =~ /\/res\//) {
           # Allow problems from sequence
           push @{$printChoices}, ["Problems from <b>$sequenceTitle</b>", 'map_problems', 'CHOOSE_PROBLEMS'];
           # Allow all resources from sequence
           push @{$printChoices}, ["Problems and pages from <b>$sequenceTitle</b>", 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];
   
           my $isProblem = '$res->is_problem();';
           my $isProblemOrMap = '$res->is_problem() || $res->is_map()';
           my $isNotMap = '!$res->is_map();';
           my $symb = '$res->symb();';
           my $helperFragment = <<HELPERFRAGMENT;
     <state name="CHOOSE_PROBLEMS" title="Select Problems">
       <message>Select problems to print:</message>
       <resource variable="RESOURCES" multichoice="1">
         <nextstate>FINAL</nextstate>
         <filterfunc>return $isProblemOrMap</filterfunc>
         <choicefunc>return $isProblem</choicefunc>
         <mapurl>$map</mapurl>
         <valuefunc>return $symb</valuefunc>
         </resource>
       </state>
   
     <state name="CHOOSE_PROBLEMS_HTML" title="Select Resources">
       <message>Select resources to print:</message>
       <resource variable="RESOURCES" multichoice="1">
         <nextstate>FINAL</nextstate>
         <choicefunc>return $isNotMap;</choicefunc>
         <mapurl>$map</mapurl>
         <valuefunc>return $symb</valuefunc>
         </resource>
       </state>
   HELPERFRAGMENT
   
           &Apache::lonxml::xmlparse($r, 'helper', $helperFragment); 
       }
   
       # 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 $ENV{'request.role'}=~m/^ta\./) and ($helper->{VARS}->{'postdata'}=~/\/res\//)) { 
           push @{$printChoices}, ['<b>All problems</b> in course (may take a lot of time)', 'all_problems', 'ALL_PROBLEMS'];
           push @{$printChoices}, ["Problems from <b>$sequenceTitle</b> for selected students", 'problems_for_students', 'CHOOSE_STUDENTS'];
   
           my $isProblem = '$res->is_problem();';
           my $isProblemOrMap = '$res->is_problem() || $res->is_map()';
           my $symb = '$res->symb();';
           &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
     <state name="ALL_PROBLEMS" title="Select Problems">
       <message>Select problems to print:</message>
       <resource variable="RESOURCES" multichoice="1">
         <nextstate>FINAL</nextstate>
         <filterfunc>return $isProblemOrMap</filterfunc>
         <choicefunc>return $isProblem</choicefunc>
         <valuefunc>return $symb</valuefunc>
         </resource>
       </state>
   
     <state name="CHOOSE_STUDENTS" title="Choose Students">
       <message>Select the students you wish to print the problems for:</message>
       <student multichoice='1' variable="STUDENTS" nextstate="FINAL" />
       </state>
   CHOOSE_STUDENTS
       }
   
       # FIXME: That RE should come from a library somewhere.
       if ((&Apache::lonnet::allowed('bre',$subdir) eq 'F') and ($helper->{VARS}->{'postdata'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)/)) {    
           push @{$printChoices}, ["Problems from <b>$subdir</b>", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
           
           my $f = '$filename';
           &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_FROM_SUBDIR);
     <state name="CHOOSE_FROM_SUBDIR" title="Select Files">
       <message>Select problems you wish to print from <b>$subdir</b></message>
       <files variable="FILES" multichoice='1'>
         <nextstate>FINAL</nextstate>
         <filechoice>return '$subdir';</filechoice>
         <filefilter>return $f =~ 
              m/^[^\\.]+\\.(problem|exam|quiz|assess|survey|form|library)$/;
         </filefilter>
         </files>
       </state>
   CHOOSE_FROM_SUBDIR
       }
   
       # Generate the first state, to select which resources get printed.
       Apache::lonhelper::state->new("START", "Selecting Resources to Print");
       $paramHash = Apache::lonhelper::getParamHash();
       $paramHash->{MESSAGE_TEXT} = "What do you want to print?";
       Apache::lonhelper::message->new();
       $paramHash = Apache::lonhelper::getParamHash();
       $paramHash->{'variable'} = 'PRINT_TYPE';
       $helper->declareVar('PRINT_TYPE');
       $paramHash->{CHOICES} = $printChoices;
       Apache::lonhelper::choices->new();
       Apache::lonprintout::page_format_state->new("FORMAT");
   
       $helper->process();
   
       # MANUAL BAILOUT CONDITION:
       # If we're in the "final" state, bailout and return to handler
       if ($helper->{STATE} eq 'FINAL') {
           return $helper;
       }    
   
       $r->print($helper->display());
   
       Apache::lonhelper::unregisterHelperTags();
   
       untie %hash;
   
     return OK;      return OK;
   }
   
 }   
   
 1;  1;
 __END__  
   
   package Apache::lonprintout::page_format_state;
   
   =pod
   
   =head1 Helper element: page_format_state
   
   See lonhelper.pm documentation for discussion of the helper framework.
   
   Apache::lonprintout::page_format_state is an element 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.
   
   page_format_state is always directly invoked in lonprintout.pm, so there
   is no tag interface. You actually pass parameters to the constructor.
   
   =over 4
   
   =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
   
   =back
   
   =cut
   
   use Apache::lonhelper;
   
   no strict;
   @ISA = ("Apache::lonhelper::element");
   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 $self = Apache::lonhelper::element->new();
   
       shift;
   
       $self->{'variable'} = shift;
       my $helper = Apache::lonhelper::getHelper();
       $helper->declareVar($self->{'variable'});
       bless($self);
       return $self;
   }
   
   sub render {
       my $self = shift;
       my $helper = Apache::lonhelper::getHelper();
       my $result = '';
       my $var = $self->{'variable'};
       my $curVal = $helper->{VARS}->{$var};
   
       my ($layout, $cols, $paper) = split(/\|/, $curVal);
   
       $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="${var}.layout" value="L" checked='1' /> Landscape<br />
         <input type="radio" name="${var}.layout" value="P" /> 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>";
       return $result;
   }
   
   sub postprocess {
       my $self = shift;
   
       my $var = $self->{'variable'};
       my $helper = Apache::lonhelper->getHelper();
       $helper->{VARS}->{$var} = 
           $ENV{"form.$var.layout"} . '|' . $ENV{"form.$var.cols"} . '|' .
           $ENV{"form.$var.paper"};
       return 1;
   }
   
   1;
   
   __END__
   
 #### Test block  
 #    my $ere;  
 #    foreach $ere (%ENV) {  
 # $result .= ' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n";  
 #    }  
 ####  
Removed from v.1.13  
changed lines
  Added in v.1.138

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