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Diff for /loncom/interface/lonprintout.pm between versions 1.131 and 1.583.2.2

version 1.131, 2003/04/22 19:54:39 version 1.583.2.2, 2010/08/26 09:30:10
Line 1 Line 1
   #
 # The LearningOnline Network  # The LearningOnline Network
 # Printout  # Printout
 #  #
Line 22 Line 23
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #  #
 # /home/httpd/html/adm/gpl.txt  # /home/httpd/html/adm/gpl.txt
 #  
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
 # (Internal Server Error Handler  
 #  
 # (Login Screen  
 # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,  
 # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)  
 #  
 # 3/1/1 Gerd Kortemeyer)  
 #  
 # 3/1 Gerd Kortemeyer  
 #  
 # 9/17 Alex Sakharuk  
 #  #
 package Apache::lonprintout;  package Apache::lonprintout;
   
 use strict;  use strict;
 use Apache::Constants qw(:common :http);  use Apache::Constants qw(:common :http);
 use Apache::lonxml;  use Apache::lonxml;
Line 49  use Apache::grades; Line 37  use Apache::grades;
 use Apache::edit;  use Apache::edit;
 use Apache::File();  use Apache::File();
 use Apache::lonnavmaps;  use Apache::lonnavmaps;
   use Apache::admannotations;
   use Apache::lonenc;
   use Apache::entities;
   use Apache::londefdef;
   
   use File::Basename;
   
   use HTTP::Response;
   
   use LONCAPA::map();
 use POSIX qw(strftime);  use POSIX qw(strftime);
 use GDBM_File;  use Apache::lonlocal;
   use Carp;
   use LONCAPA;
   
   my %perm;
   my %parmhash;
   my $resources_printed;
   
   # Global variables that describe errors in ssi calls detected  by ssi_with_retries.
   #
   
 my %hash;  my $ssi_error; # True if there was an ssi error.
 my $LaTeXwidth = 0;  my $ssi_last_error_resource; # The resource URI that could not be fetched.
   my $ssi_last_error; # The error text from the server. (e.g. 500 Server timed out).
   
 sub headerform {  #
     my $r = shift;  #  Our ssi max retry count.
     $r->print(<<ENDHEADER);  #
 <html>  
 <head>  
 <title>LON-CAPA output for printing</title>  
 </head>  
 <body bgcolor="FFFFFF">  
 <form method="post" enctype="multipart/form-data" action="/adm/printout" name="printform">  
 ENDHEADER  
   
     if ($ENV{'form.postdata'}=~m|^/res/|) {  my $ssi_retry_count = 5; # Some arbitrary value.
  $r->print(<<ENDHEADER1);  
 <b>Path to current document: </b><tt>$ENV{'form.postdata'}</tt><p>  
 ENDHEADER1  #  Font size:
     }  
   my $font_size = 'normalsize'; # Default is normalsize...
   
   #----------------------------  Helper helpers. -------------------------
   
   #  Returns the text needd for a student chooser.
   #  that text must still be parsed by the helper xml parser.
   # Parameters:
   #   this_state   - State name of the chooser.
   #   sort_choice  - variable to hold the sorting choice.
   #   variable     - Name of variable to hold students.
   #   next_state   - State after chooser.
   
   
   sub generate_student_chooser {
       my ($this_state, 
    $sort_choice, 
    $variable, 
    $next_state) = @_;
       my $result = <<CHOOSE_STUDENTS;
     <state name="$this_state" title="Select Students and Resources">
         <message><b>Select sorting order of printout</b> </message>
   
       <choices variable="$sort_choice">
         <choice computer='0'>Sort by section then student</choice>
         <choice computer='1'>Sort by students across sections.</choice>
       </choices>
   
         <message><br /><hr /><br /> </message>
         <student multichoice='1' 
                  variable="$variable" 
                  nextstate="$next_state" 
                  coursepersonnel="1" />
     </state>
   
   CHOOSE_STUDENTS
   
     return $result;
 }  }
   
   # Generate the text needed for a resource chooser given the top level of
   # the sequence/page
   #
   # Parameters:
   #     this_state    - State name of the chooser.
   #     prompt_text   - Text to use to prompt user.
   #     resource_options - Resource tag options e.g.
   #                        "multichoice='1', toponly='1', addstatus='1'"
   #                     that control the selection and appearance of the
   #                     resource selector.
   #     variable      - Name of the variable to hold the choice
   #     next_state    - Name of the next state the helper should transition
   #                     to
   #     top_url       - Top level URL within which to make the selector.
   #                     If empty the top level sequence is shown.
   #     filter        - How to filter the resources.
   #     value_func    - <valuefunc> function.
   #     choice_func   - If not empty generates a <choicefunc> with this function.
   #     start_new_option 
   #                   - Fragment appended after valuefunc.
   #
   #
   sub generate_resource_chooser {
       my ($this_state,
    $prompt_text,
    $resource_options,
    $variable,
    $next_state,
    $top_url,
    $filter,
    $choice_func,
    $value_func,
    $start_new_option)  = @_;
   
       my $result = <<CHOOSE_RESOURCES;
   <state name="$this_state" title="$prompt_text">
       <resource variable="$variable" $resource_options
                 closeallpages="1">
         <nextstate>$next_state</nextstate>
         <filterfunc>return $filter;</filterfunc>
   CHOOSE_RESOURCES
       if ($choice_func ne '') {
    $result .= "<choicefunc>return $choice_func;</choicefunc>";
       }
       if ($top_url ne '') {
    $result .=  "<mapurl>$top_url</mapurl>";
       }
       $result .= <<CHOOSE_RESOURCES;
         <valuefunc>return $value_func;</valuefunc>
         $start_new_option
         </resource>
       </state>
   CHOOSE_RESOURCES
   
 sub menu_for_output {      return $result;
     my $r = shift;  }
     my ($title_for_single_resource,$title_for_sequence,$title_for_main_map) = &details_for_menu;  #
     my $assignment = $title_for_sequence;  #   Generate the helper XML for a code choice helper dialog:
     if ($title_for_single_resource ne '') {$title_for_single_resource = '"'.$title_for_single_resource.'"';}  #
     if ($title_for_sequence ne '') {$title_for_sequence = '"'.$title_for_sequence.'"';}  # Paramters:
     if ($title_for_main_map ne '') {$title_for_main_map = '"'.$title_for_main_map.'"';}  #   $helper       - Reference to the helper.
     $ENV{'form.postdata'} =~ s|http://[^/]+||;  #   $state        - Name of the state for the chooser.
     my $subdir_to_print = $ENV{'form.postdata'};  #   $next_state   - Name fo the state to follow the chooser.
     $subdir_to_print =~ m/\/([^\/]+)$/;  #   $bubble_types - Populates the bubble sheet type dropt down.
     $subdir_to_print =~ s/\Q$1\E//;  #   $code_selections - Provides set of code choices that have been used
     $r->print(<<ENDMENUOUT1);  #   $saved_codes  - Provides the list of saved codes.
 <h1>What do you want to print? Make a choice.</h1><br />  #
 <input type="hidden" name="phase" value="two">  # Returns;
 <input type="hidden" name="url" value="$ENV{'form.postdata'}">  #   The Xml of the code chooser.
 <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>  sub generate_code_selector {
 (prints what you just saw on the screen)<br />      my ($helper,
 ENDMENUOUT1   $state,
     if ($ENV{'form.postdata'}=~/\/res\//) {   $next_state,
  $r->print(<<ENDMENUOUT2);   $bubble_types,
 <input type="radio" name="choice" value="Standard LaTeX output for the primary sequence">  Problem(s) from <b>$title_for_sequence</b><br />   $code_selections,
 <input type="radio" name="choice" value="Standard LaTeX output for whole primary sequence">  Problem(s) plus page(s) or html/xml file(s) from <b>$title_for_sequence</b><br />   $saved_codes) = @_; # Unpack the parameters.
 ENDMENUOUT2  
     }      my $result = <<CHOOSE_ANON1;
     if (($ENV{'request.role'}=~m/^cc\./ or $ENV{'request.role'}=~m/^in\./ or $ENV{'request.role'}=~m/^ta\./) and ($ENV{'form.postdata'}=~/\/res\//)) {     <state name="$state" title="Specify CODEd Assignments">
  $r->print(<<ENDMENUOUT6);      <nextstate>$next_state</nextstate>
 <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 />      <message><h4>Fill out one of the forms below</h4></message>
 <br />      <message><br /><hr /> <br /></message>
 <input type="radio" name="choice" value="All class print">  All problems from <b>$title_for_sequence</b> for selected students<br /><br />      <message><h3>Generate new CODEd Assignments</h3></message>
 ENDMENUOUT6      <message><table><tr><td><b>Number of CODEd assignments to print:</b></td><td></message>
     }      <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5"  noproceed="1">
       my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'});         <validator>
       $subdirtoprint =~ s/\/[^\/]+$//;   if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) < 1) &&
       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)/)) {      !\$helper->{'VARS'}{'REUSE_OLD_CODES'}                &&
   $r->print(<<ENDMENUOUT4);              !\$helper->{'VARS'}{'SINGLE_CODE'}                    &&
   <input type="radio" name="choice" value="Subdirectory print">  Problems from current subdirectory <b>$subdir_to_print</b><br />      !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'} ) {
 ENDMENUOUT4  
       }      return "You need to specify the number of assignments to print";
     $r->print(<<ENDMENUOUT5);   }
 <br /><hr /><br />          if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) >= 1)  &&
 <h1>And what page format do you prefer?</h1>               (\$helper->{'VARS'}{'SINGLE_CODE'} ne '') ) {
 <table>              return 'Specifying number of codes to print and a specific code is not compatible';
  <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;  
             }  
         }          }
    return undef;
          </validator>
       </string>
       <message></td></tr><tr><td></message>
       <message><b>Names to save the CODEs under for later:</b></message>
       <message></td><td></message>
       <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
       <message></td></tr><tr><td></message>
       <message><b>Bubble sheet type:</b></message>
       <message></td><td></message>
       <dropdown variable="CODE_OPTION" multichoice="0" allowempty="0">
       $bubble_types
       </dropdown>
       <message></td></tr><tr><td colspan="2"></td></tr><tr><td></message>
       <message></td></tr><tr><td></table></message>
       <message><br /><hr /><h3>Print a Specific CODE </h3><br /><table></message>
       <message><tr><td><b>Enter a CODE to print:</b></td><td></message>
       <string variable="SINGLE_CODE" size="10">
           <validator>
      if(!\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}           &&
         !\$helper->{'VARS'}{'REUSE_OLD_CODES'}                 &&
         !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
         return &Apache::lonprintout::is_code_valid(\$helper->{'VARS'}{'SINGLE_CODE'},
         \$helper->{'VARS'}{'CODE_OPTION'});
     } elsif (\$helper->{'VARS'}{'SINGLE_CODE'} ne ''){
         return 'Specifying a code name is incompatible with specifying number of codes.';
      } else {
          return undef; # Other forces control us.
      }
           </validator>
       </string>
       <message></td></tr><tr><td></message>
           $code_selections
       <message></td></tr></table></message>
       <message><hr /><h3>Reprint a Set of Saved CODEs</h3><table><tr><td></message>
       <message><b>Select saved CODEs:</b></message>
       <message></td><td></message>
       <dropdown variable="REUSE_OLD_CODES">
           $saved_codes
       </dropdown>
       <message></td></tr></table></message>
     </state>
   CHOOSE_ANON1
   
      return $result;
   }
   
   #-----------------------------------------------------------------------
   
   
   # Fetch the contents of a resource, uninterpreted.
   # This is used here to fetch a latex file to be included
   # verbatim into the printout<
   # NOTE: Ask Guy if there is a lonnet function similar to this?
   #
   # Parameters:
   #   URL of the file
   #
   sub fetch_raw_resource {
       my ($url) = @_;
   
       my $filename  = &Apache::lonnet::filelocation("", $url);
       my $contents  = &Apache::lonnet::getfile($filename);
   
       if ($contents == -1) {
    return "File open failed for $filename";      # This will bomb the print.
     }      }
 </script>      return $contents;
 <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  
   
       
 }  }
   
   #  Fetch the annotations associated with a URL and 
   #  put a centered 'annotations:' title.
   #  This is all suppressed if the annotations are empty.
   #
   sub annotate {
       my ($symb) = @_;
   
 sub problem_choice_menu {      my $annotation_text = &Apache::loncommon::get_annotation($symb, 1);
     my $r = shift;  
     my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'});  
     $subdirtoprint =~ s/\/[^\/]+$//;      my $result = "";
     my @list_of_files = ();  
     my @content_directory = ();      if (length($annotation_text) > 0) {
     $r->print("Subdir: " . $subdirtoprint . "<br />");   $result .= '\\hspace*{\\fill} \\\\[\\baselineskip] \textbf{Annotations:} \\\\ ';
     if ($subdirtoprint =~ m|/home/([^/]+)/public_html|) {   $result .= "\n";
  #localmachine CSTR space   $result .= &Apache::lonxml::latex_special_symbols($annotation_text,""); # Escape latex.
  my $user=$1;   $result .= "\n\n";
  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++) {      return $result;
  my @tempo_array = split(/&/,$content_directory[$iy]);  }
  if ($tempo_array[0] =~ m/^[^\.]+\.(problem|exam|quiz|assess|survey|form|library)$/) {  
     push(@list_of_files,$tempo_array[0]);  #
  }  #   Set a global document font size:
     }  #   This is done by replacing \begin{document}
     $subdirtoprint =~ s/\/$//;  #   with \begin{document}{\some-font-directive
     for (my $i=0;$i<=$#list_of_files;$i++) {  #   and \end{document} with
  $list_of_files[$i] = $subdirtoprint.'/'.$list_of_files[$i];  #   }\end{document
     }  #
     $r->print(<<ENDMENUOUT1);  sub set_font_size {
 <input type="hidden" name="url" value="$ENV{'form.url'}">  
 <input type="hidden" name="choice" value="$ENV{'form.choice'}">      my ($text) = @_;
 <input type="hidden" name="layout" value="$ENV{'form.layout'}">  
 <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">      # There appear to be cases where the font directive is empty.. in which
 <h1>Mark problems which you want to print</h1>      # case the first substituion would  insert a spurious \ oh happy day.
 <script>      # as this has been the cause of much mystery and hair pulling _sigh_
     function checkall() {  
  for (i=0; i<document.forms.printform.elements.length; i++) {      if ($font_size ne '') {
             if   
           (document.forms.printform.elements[i].name.indexOf('whattoprint')==0) {   $text =~ s/\\begin{document}/\\begin{document}{\\$font_size/;
       document.forms.printform.elements[i].checked=true;  
             }  
         }  
     }      }
       $text =~ s/\\end{document}/}\\end{document}/;
       return $text;
   
   
     function uncheckall() {  }
  for (i=0; i<document.forms.printform.elements.length; i++) {  
             if   # include_pdf - PDF files are included into the 
           (document.forms.printform.elements[i].name.indexOf('whattoprint')==0) {  # output as follows:
       document.forms.printform.elements[i].checked=false;  #  - The PDF, if necessary, is replicated.
             }  #  - The PDF is added to the list of files to convert to postscript (along with the images).
         }  #  - The LaTeX is added to include the final converted postscript in the file as an included
   #    job.  The assumption is that the includedpsheader.ps header will be included.
   #
   # Parameters:
   #   pdf_uri   - URI of the PDF file to include.
   #   
   # Returns:
   #  The LaTeX to include.
   #
   # Assumptions:
   #    The uri is actually a PDF file
   #    The postscript will have the includepsheader.ps included.
   #
   #
   sub include_pdf {
       my ($pdf_uri) = @_;
   
       # Where is the file? If not local we'll need to repcopy it:'
   
       my $file = &Apache::lonnet::filelocation('', $pdf_uri);
       if (! -e $file) {
    &Apache::lonnet::repcopy($file);
    $file = &Apache::lonnet::filelocation('',$pdf_uri);
     }      }
 </script>  
 <input type=button onClick="checkall()" value="Check All">&nbsp;      #  The file isn ow replicated locally.. or it did not exist in the first place
 <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;      # (unlikely).  If it did exist, add the pdf to the set of files/images that
 <input type="submit" value="Submit">      # need tob e converted for this print job:
 <p>  
 ENDMENUOUT1      $file =~ s|(.*)/res/|/home/httpd/html/res/|;
     my $i=0;  
     foreach my $file (sort @list_of_files) {      open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
  $r->print('<br /><input type=checkbox name="whattoprint'.$i.'" value="'.$file.'"> '.      print FILE ("$file\n");
                   $file);      close (FILE);
  $i++;  
       # Construct the special to put out.  To do this we need to get the
       # resulting filename after conversion.  The file will have the same name
       # but will be in the user's spool directory with converted images.
   
       my $dirname = "/home/httpd/prtspool/$env{'user.name'}/";
       my ( $base, $path,  $ext) = &fileparse($file, '.pdf');
   #    my $destname = $dirname.'/'.$base.'.eps'; # Not really an eps but easier in printout.pl
       $base =~ s/ /\_/g;
   
   
       my $output = &print_latex_header();
       $output    .= '\special{ps: _begin_job_ ('
    .$base.'.pdf.eps'.
    ')run _end_job_}';
   
       return $output;
   
   
   }
   
   
   #
   #   ssi_with_retries- Does the server side include of a resource.
   #                      if the ssi call returns an error we'll retry it up to
   #                      the number of times requested by the caller.
   #                      If we still have a proble, no text is appended to the
   #                      output and we set some global variables.
   #                      to indicate to the caller an SSI error occurred.  
   #                      All of this is supposed to deal with the issues described
   #                      in LonCAPA BZ 5631 see:
   #                      http://bugs.lon-capa.org/show_bug.cgi?id=5631
   #                      by informing the user that this happened.
   #
   # Parameters:
   #   resource   - The resource to include.  This is passed directly, without
   #                interpretation to lonnet::ssi.
   #   form       - The form hash parameters that guide the interpretation of the resource
   #                
   #   retries    - Number of retries allowed before giving up completely.
   # Returns:
   #   On success, returns the rendered resource identified by the resource parameter.
   # Side Effects:
   #   The following global variables can be set:
   #    ssi_error                - If an unrecoverable error occurred this becomes true.
   #                               It is up to the caller to initialize this to false
   #                               if desired.
   #    ssi_last_error_resource  - If an unrecoverable error occurred, this is the value
   #                               of the resource that could not be rendered by the ssi
   #                               call.
   #    ssi_last_error           - The error string fetched from the ssi response
   #                               in the event of an error.
   #
   sub ssi_with_retries {
       my ($resource, $retries, %form) = @_;
   
       my $target = $form{'grade_target'};
       my $aom    = $form{'answer_output_mode'};
   
   
   
       my ($content, $response) = &Apache::loncommon::ssi_with_retries($resource, $retries, %form);
       if (!$response->is_success) {
    $ssi_error               = 1;
    $ssi_last_error_resource = $resource;
    $ssi_last_error          = $response->code . " " . $response->message;
           $content='\section*{!!! An error occurred !!!}';
    &Apache::lonnet::logthis("Error in SSI resource: $resource Error: $ssi_last_error");
     }      }
     $r->print(<<ENDMENUOUT2);  
 <br /><br />      return $content;
 <input type="hidden" name="papersize" value="$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 get_student_view_with_retries {
       my ($curresline,$retries,$username,$userdomain,$courseid,$target,$moreenv)=@_;
   
 sub additional_class_menu {      my ($content, $response) = &Apache::loncommon::get_student_view_with_retries($curresline,$retries,$username,$userdomain,$courseid,$target,$moreenv);
     my $r = shift;      if (!$response->is_success) {
     $r->print(<<ENDMENUOUT1);          $ssi_error               = 1;
 <input type="hidden" name="url" value="$ENV{'form.url'}">          $ssi_last_error_resource = $curresline.' for user '.$username.':'.$userdomain;
 <input type="hidden" name="choice" value="$ENV{'form.choice'}">          $ssi_last_error          = $response->code . " " . $response->message;
 <input type="hidden" name="layout" value="$ENV{'form.layout'}">          $content='\section*{!!! An error occurred !!!}';
 <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">          &Apache::lonnet::logthis("Error in SSI (student view) resource: $curresline Error: $ssi_last_error User: $username:$userdomain");
 <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;  
             }  
         }  
     }      }
       return $content;
   
     function checksec() {  }
  for (i=0; i<document.forms.printform.elements.length; i++) {  
             if   #
           (document.forms.printform.elements[i].value.indexOf  #   printf_style_subst  item format_string repl
            (document.forms.printform.chksec.value)==0) {  #  
       document.forms.printform.elements[i].checked=true;  # Does printf style substitution for a format string that
             }  # can have %[n]item in it.. wherever, %[n]item occurs,
         }  # rep is substituted in format_string.  Note that
   # [n] is an optional integer length.  If provided,
   # repl is truncated to at most [n] characters prior to 
   # substitution.
   #
   sub printf_style_subst {
       my ($item, $format_string, $repl) = @_;
       my $result = "";
       while ($format_string =~ /(%)(\d*)\Q$item\E/g ) {
    my $fmt = $1;
    my $size = $2;
    my $subst = $repl;
    if ($size ne "") {
       $subst = substr($subst, 0, $size);
       
       #  Here's a nice edge case.. supose the end of the
       #  substring is a \.  In that case may have  just
       #  chopped off a TeX escape... in that case, we append
       #   " " for the trailing character, and let the field 
       #  spill over a bit (sigh).
       #  We don't just chop off the last character in order to deal
       #  with one last pathology, and that would be if substr had
       #  trimmed us to e.g. \\\  
   
   
       if ($subst =~ /\\$/) {
    $subst .= " ";
       }
    }
    my $item_pos = pos($format_string);
    $result .= substr($format_string, 0, $item_pos - length($size) -2) . $subst;
           $format_string = substr($format_string, pos($format_string));
     }      }
   
     function uncheckall() {      # Put the residual format string into the result:
  for (i=0; i<document.forms.printform.elements.length; i++) {  
             if       $result .= $format_string;
           (document.forms.printform.elements[i].name.indexOf('whomtoprint')==0) {  
       document.forms.printform.elements[i].checked=false;      return $result;
   }
   
   
   # Format a header according to a format.  
   # 
   
   # Substitutions:
   #     %a    - Assignment name.
   #     %c    - Course name.
   #     %n    - Student name.
   #     %s    - The section if it is supplied.
   #
   sub format_page_header {
       my ($width, $format, $assignment, $course, $student) = @_;
   
   
   
       $width = &recalcto_mm($width); # Get width in mm.
       my $chars_per_line = int($width/2);   # Character/textline.
   
       #  Default format?
   
       if ($format eq '') {
    # For the default format, we may need to truncate
    # elements..  To do this we need to get the page width.
    # we assume that each character is about 2mm in width.
    # (correct for the header text size??).  We ignore
    # any formatting (e.g. boldfacing in this).
    # 
    # - Allow the student/course to be one line.
    #   but only truncate the course.
    # - Allow the assignment to be 2 lines (wrapped).
    #
   
           my $firstline = "$student $course";
           if (length($firstline) > $chars_per_line) {
               my $lastchar = $chars_per_line - length($student) - 1;
               if ($lastchar > 0) {
                   $course = substr($course, 0, $lastchar);
               } else {            # Nothing left of course:
                   $course = '';
             }              }
         }          }
           if (length($assignment) > $chars_per_line) {
               $assignment = substr($assignment, 0, $chars_per_line);
           }
   
           $format =  "\\textbf{$student} $course \\hfill \\thepage \\\\ \\textit{$assignment}";
   
       } else {
           # An open question is how to handle long user formatted page headers...
           # A possible future is to support e.g. %na so that the user can control
           # the truncation of the elements that can appear in the header.
           #
           $format =  &printf_style_subst("a", $format, $assignment);
           $format =  &printf_style_subst("c", $format, $course);
           $format =  &printf_style_subst("n", $format, $student);
       
           # If the user put %'s in the format string, they must be escaped
           # to \% else LaTeX will think they are comments and terminate
           # the line.. which is bad!!!
   
     }      }
 </script>      
 <input type=button onClick="checkall()" value="Check All">&nbsp;      return $format;
 <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 {   #   Convert a numeric code to letters
     my $r = shift;  #
     my $what_to_print = '';  sub num_to_letters {
     for (my $i=0; $i<$ENV{'form.numberofstudents'};$i++) {      my ($num) = @_;
  $what_to_print .= '<input type="hidden" name="whomtoprint'.$i.'" value="'.$ENV{'form.whomtoprint'.$i}.'">';      my @nums= split('',$num);
     }      my @num_to_let=('A'..'Z');
     for (my $i=0; $i<$ENV{'form.numberofproblems'};$i++) {      my $word;
  $what_to_print .= '<input type="hidden" name="whattoprint'.$i.'" value="'.$ENV{'form.whattoprint'.$i}.'">';      foreach my $digit (@nums) { $word.=$num_to_let[$digit]; }
     }      return $word;
     for (my $i=0; $i<$ENV{'form.numberoffiles'};$i++) {  }
  $what_to_print .= '<input type="hidden" name="whatfile'.$i.'" value="'.$ENV{'form.whatfile'.$i}.'">';  #   Convert a letter code to numeric.
     }  #
     $r->print(<<ENDMENUOUT);  sub letters_to_num {
     $what_to_print      my ($letters) = @_;
 <input type="hidden" name="url" value="$ENV{'form.url'}">      my @letters = split('', uc($letters));
 <input type="hidden" name="choice" value="$ENV{'form.choice'}">     my %substitution;
 <input type="hidden" name="layout" value="$ENV{'form.layout'}">      my $digit = 0;
 <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">      foreach my $letter ('A'..'J') {
 <input type="hidden" name="numberofstudents" value="$ENV{'form.numberofstudents'}">   $substitution{$letter} = $digit;
 <input type="hidden" name="numberofproblems" value="$ENV{'form.numberofproblems'}">   $digit++;
 <input type="hidden" name="numberoffiles" value="$ENV{'form.numberoffiles'}">      }
 <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">      #  The substitution is done as below to preserve leading
 <input type="hidden" name="assignment" value="$ENV{'form.assignment'}">      #  zeroes which are needed to keep the code size exact
 <input type="hidden" name="addedpages" value="$ENV{'form.addedpages'}">      #
 Define one column layout parameters: <br />      my $result ="";
 <b>Width</b>: <input type="text" name="width" width="8" value="9cm"> <br />      foreach my $letter (@letters) {
 <b>Height</b>: <input type="text" name="height" width="8" value="25.9cm"> <br />   $result.=$substitution{$letter};
 <b>Left margin</b>: <input type="text" name="leftmargin" width="8" value="-0.57in"> <br />      }
 <input type="hidden" name="phase" value="four">      return $result;
 <input type="submit" value="Submit">  
 </form>  
 </body>  
 </html>  
 ENDMENUOUT  
 }  }
   
   #  Determine if a code is a valid numeric code.  Valid
   #  numeric codes must be comprised entirely of digits and
   #  have a correct number of digits.
   #
   #  Parameters:
   #     value      - proposed code value.
   #     num_digits - Number of digits required.
   #
   sub is_valid_numeric_code {
       my ($value, $num_digits) = @_;
       #   Remove leading/trailing whitespace;
       $value =~ s/^\s*//g;
       $value =~ s/\s*$//g;
       
       #  All digits?
       if ($value !~ /^[0-9]+$/) {
    return "Numeric code $value has invalid characters - must only be digits";
       }
       if (length($value) != $num_digits) {
    return "Numeric code $value incorrect number of digits (correct = $num_digits)";
       }
       return undef;
   }
   #   Determines if a code is a valid alhpa code.  Alpha codes
   #   are ciphers that map  [A-J,a-j] -> 0..9 0..9.
   #   They also have a correct digit count.
   # Parameters:
   #     value          - Proposed code value.
   #     num_letters    - correct number of letters.
   # Note:
   #    leading and trailing whitespace are ignored.
   #
   sub is_valid_alpha_code {
       my ($value, $num_letters) = @_;
       
        # strip leading and trailing spaces.
   
 sub output_data {      $value =~ s/^\s*//g;
     my $r = shift;      $value =~ s/\s*$//g;
     $r->print(<<ENDPART);  
 <html>  
 <head>  
 <title>LON-CAPA output for printing</title>  
 </head>  
 <body bgcolor="FFFFFF">  
 <hr>  
 ENDPART  
   
     my $choice = $ENV{'form.choice'};      #  All alphas in the right range?
     my $layout = $ENV{'form.layout'};      if ($value !~ /^[A-J,a-j]+$/) {
     my $numberofcolumns = $ENV{'form.numberofcolumns'};     return "Invalid letter code $value must only contain A-J";
     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 $result = '';      if (length($value) != $num_letters) {
     my $number_of_columns = 1; #used only for pages to determine the width of the cell   return "Letter code $value has incorrect number of letters (correct = $num_letters)";
     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') {      return undef;
       #-- 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]);  #   Determine if a code entered by the user in a helper is valid.
  my @master_seq = &coming_from_hash($primary_sequence);   #   valid depends on the code type and the type of code selected.
  for (my $i=0;$i<=$#master_seq;$i++) {  #   The type of code selected can either be numeric or 
     my ($path,$title,$symb) = split /&&/,$master_seq[$i];  #   Alphabetic.  If alphabetic, the code, in fact is a simple
     $master_seq[$i] = $path.'&&'.$symb;  #   substitution cipher for the actual numeric code: 0->A, 1->B ...
  }  #   We'll be nice and be case insensitive for alpha codes.
         #loop over students  # Parameters:
  my $flag_latex_header_remove = 'NO';   #    code_value    - the value of the code the user typed in.
  my %moreenv;  #    code_option   - The code type selected from the set in the scantron format
  $moreenv{'form.textwidth'}=$LaTeXwidth;  #                    table.
  &Apache::lonnet::appenv(%moreenv);  # Returns:
  my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1);  #    undef         - The code is valid.
  foreach my $person (@students) {  #    other         - An error message indicating what's wrong.
     my $current_output = '';   #
     my ($usersection,$username,$userdomain) = split /:/,$person;  sub is_code_valid {
     my $fullname = &get_name($username,$userdomain);      my ($code_value, $code_option) = @_;
             #goes through all resources, checks if they are available for current student, and produces output         my ($code_type, $code_length) = ('letter', 6); # defaults.
     foreach my $curresline (@master_seq)  {      my @lines = &Apache::grades::get_scantronformat_file();
  my ($curres,$symb) = split /&&/, $curresline;      foreach my $line (@lines) {
                 if ($curres=~ m/\.(problem|exam|quiz|assess|survey|form|library)/) {   my ($name, $type, $length) = (split(/:/, $line))[0,2,4];
     my ($map,$id,$res_url) = split(/___/,$symb);   if($name eq $code_option) {
     if (&Apache::lonnet::allowed('bre',$res_url)) {      $code_length = $length;
  my $rendered = &Apache::loncommon::get_student_view($symb,$username,$userdomain,      if($type eq 'number') {
                                                                         $ENV{'request.course.id'},'tex');   $code_type = 'number';
  if ($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;  
  $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      my $valid;
     $result = &page_format_transformation($papersize,$layout,$numberofcolumns,$choice,$result,$assignment);      if ($code_type eq 'number') {
     if ($layout eq 'CBI') {   return &is_valid_numeric_code($code_value, $code_length);
         $laystyle = 'album';      } else {
     }   return &is_valid_alpha_code($code_value, $code_length);
     $result = &latex_corrections($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>  
 </html>  
 FINALEND  
 }  }
   
   #   Compare two students by name.  The students are in the form
   #   returned by the helper:
   #      user:domain:section:last,   first:status
   #   This is a helper function for the perl sort built-in  therefore:
   # Implicit Inputs:
   #    $a     - The first element to compare (global)
   #    $b     - The second element to compare (global)
   # Returns:
   #   -1   - $a < $b
   #    0   - $a == $b
   #   +1   - $a > $b
   #   Note that the initial comparison is done on the last names with the
   #   first names only used to break the tie.
   #
   #
   sub compare_names {
       #  First split the names up into the primary fields.
   
 sub coming_from_hash {      my ($u1, $d1, $s1, $n1, $stat1) = split(/:/, $a);
       my ($u2, $d2, $s2, $n2, $stat2) = split(/:/, $b);
   
     my $mainsequence = shift;      # Now split the last name and first name of each n:
     my @resourcelist = ();      #
     my $mapid = $hash{'map_pc_'.$mainsequence};  
     my $mapstart = $hash{'map_start_'.$mainsequence};      my ($l1,$f1) = split(/,/, $n1);
     my $mapfinish = $hash{'map_finish_'.$mainsequence};      my ($l2,$f2) = split(/,/, $n2);
     my $current_resource = $mapstart;  
     while ($current_resource ne $mapfinish) {      # We don't bother to remove the leading/trailing whitespace from the
  if ($hash{'src_'.$current_resource}=~/\.sequence$/) {      # firstname, unless the last names compare identical.
     push @resourcelist,&coming_from_hash($hash{'src_'.$current_resource});  
  } else {      if($l1 lt $l2) {
     my $presymb=&Apache::lonnet::declutter($mainsequence);   return -1;
     my $rid = $current_resource;      }
     if ($rid=~/,/) {      if($l1 gt $l2) {
  my @rid = split /,/, $rid;   return  1;
  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;  
 }  
   
       # Break the tie on the first name, but there are leading (possibly trailing
       # whitespaces to get rid of first 
       #
       $f1 =~ s/^\s+//; # Remove leading...
       $f1 =~ s/\s+$//; # Trailing spaces from first 1...
       
       $f2 =~ s/^\s+//;
       $f2 =~ s/\s+$//; # And the same for first 2...
   
       if($f1 lt $f2) {
    return -1;
       }
       if($f1 gt $f2) {
    return 1;
       }
       
       #  Must be the same name.
   
       return 0;
   }
   
 sub latex_header_footer_remove {  sub latex_header_footer_remove {
     my $text = shift;      my $text = shift;
Line 794  sub latex_header_footer_remove { Line 747  sub latex_header_footer_remove {
     $text =~ s/\\documentclass([^&]*)\\begin{document}//;      $text =~ s/\\documentclass([^&]*)\\begin{document}//;
     return $text;      return $text;
 }  }
   #
   #  If necessary, encapsulate text inside 
   #  a minipage env.
   #  necessity is determined by the problem_split param.
   #
   sub encapsulate_minipage {
       my ($text) = @_;
       if (!($env{'form.problem.split'} =~ /yes/i)) {
    $text = '\begin{minipage}{\textwidth}'.$text.'\end{minipage}';
       }
       return $text;
   }
   #
   #  The NUMBER_TO_PRINT and SPLIT_PDFS
   #  variables interact, this sub looks at these two parameters
   #  and comes up with a final value for NUMBER_TO_PRINT which can be:
   #     all     - if SPLIT_PDFS eq 'all'.
   #     1       - if SPLIT_PDFS eq 'oneper'
   #     section - if SPLIT_PDFS eq 'sections'
   #     <unchanged> - if SPLIT_PDFS eq 'usenumber'
   #
   sub adjust_number_to_print {
       my $helper = shift;
   
       my $split_pdf = $helper->{'VARS'}->{'SPLIT_PDFS'};
       
       if ($split_pdf eq 'all') {
    $helper->{'VARS'}->{'NUMBER_TO_PRINT'} = 'all';
       } elsif ($split_pdf eq 'oneper') {
    $helper->{'VARS'}->{'NUMBER_TO_PRINT'} = 1;
       } elsif ($split_pdf eq 'sections') {
    $helper->{'VARS'}->{'NUMBER_TO_PRINT'} = 'section';
       } elsif ($split_pdf eq 'usenumber') {
    #  Unmodified.
       } else {
    # Error!!!!
   
    croak "bad SPLIT_PDFS: $split_pdf in lonprintout::adjust_number_to_print";
   
       }
   }
   
   
 sub character_chart {  sub character_chart {
       my $result = shift;
       return  &Apache::entities::replace_entities($result);
   }
   
   sub old_character_chart {
     my $result = shift;      my $result = shift;
     $result =~ s/&\#0?0?(7|9);//g;      $result =~ s/&\#0?0?(7|9);//g;
     $result =~ s/&\#0?(10|13);//g;      $result =~ s/&\#0?(10|13);//g;
Line 829  sub character_chart { Line 828  sub character_chart {
     $result =~ s/&\#0?58;/:/g;      $result =~ s/&\#0?58;/:/g;
     $result =~ s/&\#0?59;/;/g;      $result =~ s/&\#0?59;/;/g;
     $result =~ s/&(\#0?60|lt|\#139);/\$<\$/g;      $result =~ s/&(\#0?60|lt|\#139);/\$<\$/g;
     $result =~ s/&\#0?61;/\$=\$/g;      $result =~ s/&\#0?61;/\\ensuremath\{=\}/g;
     $result =~ s/&(\#0?62|gt|\#155);/\$>\$/g;      $result =~ s/&(\#0?62|gt|\#155);/\\ensuremath\{>\}/g;
     $result =~ s/&\#0?63;/\?/g;      $result =~ s/&\#0?63;/\?/g;
     $result =~ s/&\#0?65;/A/g;      $result =~ s/&\#0?65;/A/g;
     $result =~ s/&\#0?66;/B/g;      $result =~ s/&\#0?66;/B/g;
Line 859  sub character_chart { Line 858  sub character_chart {
     $result =~ s/&\#0?89;/Y/g;      $result =~ s/&\#0?89;/Y/g;
     $result =~ s/&\#0?90;/Z/g;      $result =~ s/&\#0?90;/Z/g;
     $result =~ s/&\#0?91;/[/g;      $result =~ s/&\#0?91;/[/g;
     $result =~ s/&\#0?92;/\$\\setminus\$/g;      $result =~ s/&\#0?92;/\\ensuremath\{\\setminus\}/g;
     $result =~ s/&\#0?93;/]/g;      $result =~ s/&\#0?93;/]/g;
     $result =~ s/&\#(0?94|136);/\$\\wedge\$/g;      $result =~ s/&\#(0?94|136);/\\ensuremath\{\\wedge\}/g;
     $result =~ s/&\#(0?95|138|154);/\\underline{\\makebox[2mm]{\\strut}}/g;      $result =~ s/&\#(0?95|138|154);/\\underline{\\makebox[2mm]{\\strut}}/g;
     $result =~ s/&\#(0?96|145);/\`/g;      $result =~ s/&\#(0?96|145);/\`/g;
     $result =~ s/&\#0?97;/a/g;      $result =~ s/&\#0?97;/a/g;
Line 896  sub character_chart { Line 895  sub character_chart {
     $result =~ s/&\#126;/\~/g;      $result =~ s/&\#126;/\~/g;
     $result =~ s/&\#131;/\\textflorin /g;      $result =~ s/&\#131;/\\textflorin /g;
     $result =~ s/&\#132;/\"/g;      $result =~ s/&\#132;/\"/g;
     $result =~ s/&\#133;/\$\\ldots\$/g;      $result =~ s/&\#133;/\\ensuremath\{\\ldots\}/g;
     $result =~ s/&\#134;/\$\\dagger\$/g;      $result =~ s/&\#134;/\\ensuremath\{\\dagger\}/g;
     $result =~ s/&\#135;/\$\\ddagger\$/g;      $result =~ s/&\#135;/\\ensuremath\{\\ddagger\}/g;
     $result =~ s/&\#137;/\\textperthousand /g;      $result =~ s/&\#137;/\\textperthousand /g;
     $result =~ s/&\#140;/{\\OE}/g;      $result =~ s/&\#140;/{\\OE}/g;
     $result =~ s/&\#147;/\`\`/g;      $result =~ s/&\#147;/\`\`/g;
     $result =~ s/&\#148;/\'\'/g;      $result =~ s/&\#148;/\'\'/g;
     $result =~ s/&\#149;/\$\\bullet\$/g;      $result =~ s/&\#149;/\\ensuremath\{\\bullet\}/g;
     $result =~ s/&\#150;/--/g;      $result =~ s/&(\#150|\#8211);/--/g;
     $result =~ s/&\#151;/---/g;      $result =~ s/&\#151;/---/g;
     $result =~ s/&\#152;/\$\\sim\$/g;      $result =~ s/&\#152;/\\ensuremath\{\\sim\}/g;
     $result =~ s/&\#153;/\\texttrademark /g;      $result =~ s/&\#153;/\\texttrademark /g;
     $result =~ s/&\#156;/\\oe/g;      $result =~ s/&\#156;/\\oe/g;
     $result =~ s/&\#159;/\\\"Y/g;      $result =~ s/&\#159;/\\\"Y/g;
     $result =~ s/&(\#160|nbsp);//g;      $result =~ s/&(\#160|nbsp);/~/g;
     $result =~ s/&(\#161|iexcl);/!\`/g;      $result =~ s/&(\#161|iexcl);/!\`/g;
     $result =~ s/&(\#162|cent);/\\textcent /g;      $result =~ s/&(\#162|cent);/\\textcent /g;
     $result =~ s/&(\#163|pound);/\\pounds /g;       $result =~ s/&(\#163|pound);/\\pounds /g; 
Line 918  sub character_chart { Line 917  sub character_chart {
     $result =~ s/&(\#165|yen);/\\textyen /g;      $result =~ s/&(\#165|yen);/\\textyen /g;
     $result =~ s/&(\#166|brvbar);/\\textbrokenbar /g;      $result =~ s/&(\#166|brvbar);/\\textbrokenbar /g;
     $result =~ s/&(\#167|sect);/\\textsection /g;      $result =~ s/&(\#167|sect);/\\textsection /g;
     $result =~ s/&(\#168|uml);/\\texthighdieresis /g;      $result =~ s/&(\#168|uml);/\\"\{\} /g;
     $result =~ s/&(\#169|copy);/\\copyright /g;      $result =~ s/&(\#169|copy);/\\copyright /g;
     $result =~ s/&(\#170|ordf);/\\textordfeminine /g;      $result =~ s/&(\#170|ordf);/\\textordfeminine /g;
     $result =~ s/&(\#172|not);/\$\\neg\$/g;      $result =~ s/&(\#172|not);/\\ensuremath\{\\neg\}/g;
     $result =~ s/&(\#173|shy);/ - /g;      $result =~ s/&(\#173|shy);/ - /g;
     $result =~ s/&(\#174|reg);/\\textregistered /g;      $result =~ s/&(\#174|reg);/\\textregistered /g;
     $result =~ s/&(\#175|macr);/\$^{-}\$/g;      $result =~ s/&(\#175|macr);/\\ensuremath\{^{-}\}/g;
     $result =~ s/&(\#176|deg);/\$^{\\circ}\$/g;      $result =~ s/&(\#176|deg);/\\ensuremath\{^{\\circ}\}/g;
     $result =~ s/&(\#177|plusmn);/\$\\pm\$/g;      $result =~ s/&(\#177|plusmn);/\\ensuremath\{\\pm\}/g;
     $result =~ s/&(\#178|sup2);/\$^2\$/g;      $result =~ s/&(\#178|sup2);/\\ensuremath\{^2\}/g;
     $result =~ s/&(\#179|sup3);/\$^3\$/g;      $result =~ s/&(\#179|sup3);/\\ensuremath\{^3\}/g;
     $result =~ s/&(\#180|acute);/\\textacute /g;      $result =~ s/&(\#180|acute);/\\'\{\} /g;
     $result =~ s/&(\#181|micro);/\$\\mu\$/g;      $result =~ s/&(\#181|micro);/\\ensuremath\{\\mu\}/g;
     $result =~ s/&(\#182|para);/\\P/g;      $result =~ s/&(\#182|para);/\\P/g;
     $result =~ s/&(\#183|middot);/\$\\cdot\$/g;      $result =~ s/&(\#183|middot);/\\ensuremath\{\\cdot\}/g;
     $result =~ s/&(\#184|cedil);/\\c{\\strut}/g;      $result =~ s/&(\#184|cedil);/\\c{\\strut}/g;
     $result =~ s/&(\#185|sup1);/\$^1\$/g;      $result =~ s/&(\#185|sup1);/\\ensuremath\{^1\}/g;
     $result =~ s/&(\#186|ordm);/\\textordmasculine /g;      $result =~ s/&(\#186|ordm);/\\textordmasculine /g;
     $result =~ s/&(\#188|frac14);/\\textonequarter /g;      $result =~ s/&(\#188|frac14);/\\textonequarter /g;
     $result =~ s/&(\#189|frac12);/\\textonehalf /g;      $result =~ s/&(\#189|frac12);/\\textonehalf /g;
Line 962  sub character_chart { Line 961  sub character_chart {
     $result =~ s/&(\#212|Ocirc);/\\^{O}/g;      $result =~ s/&(\#212|Ocirc);/\\^{O}/g;
     $result =~ s/&(\#213|Otilde);/\\~{O}/g;      $result =~ s/&(\#213|Otilde);/\\~{O}/g;
     $result =~ s/&(\#214|Ouml);/\\\"{O}/g;          $result =~ s/&(\#214|Ouml);/\\\"{O}/g;    
     $result =~ s/&(\#215|times);/\$\\times\$/g;      $result =~ s/&(\#215|times);/\\ensuremath\{\\times\}/g;
     $result =~ s/&(\#216|Oslash);/{\\O}/g;      $result =~ s/&(\#216|Oslash);/{\\O}/g;
     $result =~ s/&(\#217|Ugrave);/\\\`{U}/g;          $result =~ s/&(\#217|Ugrave);/\\\`{U}/g;    
     $result =~ s/&(\#218|Uacute);/\\\'{U}/g;      $result =~ s/&(\#218|Uacute);/\\\'{U}/g;
     $result =~ s/&(\#219|Ucirc);/\\^{U}/g;      $result =~ s/&(\#219|Ucirc);/\\^{U}/g;
     $result =~ s/&(\#220|Uuml);/\\\"{U}/g;      $result =~ s/&(\#220|Uuml);/\\\"{U}/g;
     $result =~ s/&(\#221|Yacute);/\\\'{Y}/g;      $result =~ s/&(\#221|Yacute);/\\\'{Y}/g;
     $result =~ s/&(\#223|szlig);/\\ss/g;      $result =~ s/&(\#223|szlig);/{\\ss}/g;
     $result =~ s/&(\#224|agrave);/\\\`{a}/g;      $result =~ s/&(\#224|agrave);/\\\`{a}/g;
     $result =~ s/&(\#225|aacute);/\\\'{a}/g;      $result =~ s/&(\#225|aacute);/\\\'{a}/g;
     $result =~ s/&(\#226|acirc);/\\^{a}/g;      $result =~ s/&(\#226|acirc);/\\^{a}/g;
Line 986  sub character_chart { Line 985  sub character_chart {
     $result =~ s/&(\#237|iacute);/\\\'{i}/g;      $result =~ s/&(\#237|iacute);/\\\'{i}/g;
     $result =~ s/&(\#238|icirc);/\\^{i}/g;      $result =~ s/&(\#238|icirc);/\\^{i}/g;
     $result =~ s/&(\#239|iuml);/\\\"{i}/g;      $result =~ s/&(\#239|iuml);/\\\"{i}/g;
     $result =~ s/&(\#240|eth);/\$\\partial\$/g;      $result =~ s/&(\#240|eth);/\\ensuremath\{\\partial\}/g;
     $result =~ s/&(\#241|ntilde);/\\~{n}/g;      $result =~ s/&(\#241|ntilde);/\\~{n}/g;
     $result =~ s/&(\#242|ograve);/\\\`{o}/g;      $result =~ s/&(\#242|ograve);/\\\`{o}/g;
     $result =~ s/&(\#243|oacute);/\\\'{o}/g;      $result =~ s/&(\#243|oacute);/\\\'{o}/g;
     $result =~ s/&(\#244|ocirc);/\\^{o}/g;      $result =~ s/&(\#244|ocirc);/\\^{o}/g;
     $result =~ s/&(\#245|otilde);/\\~{o}/g;      $result =~ s/&(\#245|otilde);/\\~{o}/g;
     $result =~ s/&(\#246|ouml);/\\\"{o}/g;      $result =~ s/&(\#246|ouml);/\\\"{o}/g;
     $result =~ s/&(\#247|divide);/\$\\div\$/g;      $result =~ s/&(\#247|divide);/\\ensuremath\{\\div\}/g;
     $result =~ s/&(\#248|oslash);/{\\o}/g;      $result =~ s/&(\#248|oslash);/{\\o}/g;
     $result =~ s/&(\#249|ugrave);/\\\`{u}/g;       $result =~ s/&(\#249|ugrave);/\\\`{u}/g; 
     $result =~ s/&(\#250|uacute);/\\\'{u}/g;      $result =~ s/&(\#250|uacute);/\\\'{u}/g;
Line 1001  sub character_chart { Line 1000  sub character_chart {
     $result =~ s/&(\#252|uuml);/\\\"{u}/g;      $result =~ s/&(\#252|uuml);/\\\"{u}/g;
     $result =~ s/&(\#253|yacute);/\\\'{y}/g;      $result =~ s/&(\#253|yacute);/\\\'{y}/g;
     $result =~ s/&(\#255|yuml);/\\\"{y}/g;      $result =~ s/&(\#255|yuml);/\\\"{y}/g;
     $result =~ s/&\#952;/\$\\theta\$/g;      $result =~ s/&\#295;/\\ensuremath\{\\hbar\}/g;
       $result =~ s/&\#952;/\\ensuremath\{\\theta\}/g;
 #Greek Alphabet  #Greek Alphabet
     $result =~ s/&(alpha|\#945);/\$\\alpha \$/g;      $result =~ s/&(alpha|\#945);/\\ensuremath\{\\alpha\}/g;
     $result =~ s/&(beta|\#946);/\$\\beta \$/g;      $result =~ s/&(beta|\#946);/\\ensuremath\{\\beta\}/g;
     $result =~ s/&(gamma|\#947);/\$\\gamma \$/g;      $result =~ s/&(gamma|\#947);/\\ensuremath\{\\gamma\}/g;
     $result =~ s/&(delta|\#948);/\$\\delta \$/g;      $result =~ s/&(delta|\#948);/\\ensuremath\{\\delta\}/g;
     $result =~ s/&(epsilon|\#949);/\$\\epsilon \$/g;      $result =~ s/&(epsilon|\#949);/\\ensuremath\{\\epsilon\}/g;
     $result =~ s/&(zeta|\#950);/\$\\zeta \$/g;      $result =~ s/&(zeta|\#950);/\\ensuremath\{\\zeta\}/g;
     $result =~ s/&(eta|\#951);/\$\\eta \$/g;      $result =~ s/&(eta|\#951);/\\ensuremath\{\\eta\}/g;
     $result =~ s/&(theta|\#952);/\$\\theta \$/g;      $result =~ s/&(theta|\#952);/\\ensuremath\{\\theta\}/g;
     $result =~ s/&(iota|\#953);/\$\\iota \$/g;      $result =~ s/&(iota|\#953);/\\ensuremath\{\\iota\}/g;
     $result =~ s/&(kappa|\#954);/\$\\kappa \$/g;      $result =~ s/&(kappa|\#954);/\\ensuremath\{\\kappa\}/g;
     $result =~ s/&(lambda|\#955);/\$\\lambda \$/g;      $result =~ s/&(lambda|\#955);/\\ensuremath\{\\lambda\}/g;
     $result =~ s/&(mu|\#956);/\$\\mu \$/g;      $result =~ s/&(mu|\#956);/\\ensuremath\{\\mu\}/g;
     $result =~ s/&(nu|\#957);/\$\\nu \$/g;      $result =~ s/&(nu|\#957);/\\ensuremath\{\\nu\}/g;
     $result =~ s/&(xi|\#958);/\$\\xi \$/g;      $result =~ s/&(xi|\#958);/\\ensuremath\{\\xi\}/g;
     $result =~ s/&(pi|\#960);/\$\\pi \$/g;      $result =~ s/&(omicron|\#959);/o/g;
     $result =~ s/&(rho|\#961);/\$\\rho \$/g;      $result =~ s/&(pi|\#960);/\\ensuremath\{\\pi\}/g;
     $result =~ s/&(sigma|\#963);/\$\\sigma \$/g;      $result =~ s/&(rho|\#961);/\\ensuremath\{\\rho\}/g;
     $result =~ s/&(tau|\#964);/\$\\tau \$/g;      $result =~ s/&(sigma|\#963);/\\ensuremath\{\\sigma\}/g;
     $result =~ s/&(upsilon|\#965);/\$\\upsilon \$/g;      $result =~ s/&(tau|\#964);/\\ensuremath\{\\tau\}/g;
     $result =~ s/&(phi|\#966);/\$\\phi \$/g;      $result =~ s/&(upsilon|\#965);/\\ensuremath\{\\upsilon\}/g;
     $result =~ s/&(chi|\#967);/\$\\chi \$/g;      $result =~ s/&(phi|\#966);/\\ensuremath\{\\phi\}/g;
     $result =~ s/&(psi|\#968);/\$\\psi \$/g;      $result =~ s/&(chi|\#967);/\\ensuremath\{\\chi\}/g;
     $result =~ s/&(omega|\#969);/\$\\omega \$/g;      $result =~ s/&(psi|\#968);/\\ensuremath\{\\psi\}/g;
     $result =~ s/&(Gamma|\#915);/\$\\Gamma \$/g;      $result =~ s/&(omega|\#969);/\\ensuremath\{\\omega\}/g;
     $result =~ s/&(Delta|\#916);/\$\\Delta \$/g;      $result =~ s/&(thetasym|\#977);/\\ensuremath\{\\vartheta\}/g;
     $result =~ s/&(Theta|\#920);/\$\\Theta \$/g;      $result =~ s/&(piv|\#982);/\\ensuremath\{\\varpi\}/g;
     $result =~ s/&(Lambda|\#923);/\$\\Lambda \$/g;      $result =~ s/&(Alpha|\#913);/A/g;
     $result =~ s/&(Xi|\#926);/\$\\Xi \$/g;      $result =~ s/&(Beta|\#914);/B/g;
     $result =~ s/&(Pi|\#928);/\$\\Pi \$/g;      $result =~ s/&(Gamma|\#915);/\\ensuremath\{\\Gamma\}/g;
     $result =~ s/&(Sigma|\#931);/\$\\Sigma \$/g;      $result =~ s/&(Delta|\#916);/\\ensuremath\{\\Delta\}/g;
     $result =~ s/&(Upsilon|\#933);/\$\\Upsilon \$/g;      $result =~ s/&(Epsilon|\#917);/E/g;
     $result =~ s/&(Phi|\#934);/\$\\Phi \$/g;      $result =~ s/&(Zeta|\#918);/Z/g;
     $result =~ s/&(Psi|\#936);/\$\\Psi \$/g;      $result =~ s/&(Eta|\#919);/H/g;
     $result =~ s/&(Omega|\#937);/\$\\Omega \$/g;      $result =~ s/&(Theta|\#920);/\\ensuremath\{\\Theta\}/g;
       $result =~ s/&(Iota|\#921);/I/g;
       $result =~ s/&(Kappa|\#922);/K/g;
       $result =~ s/&(Lambda|\#923);/\\ensuremath\{\\Lambda\}/g;
       $result =~ s/&(Mu|\#924);/M/g;
       $result =~ s/&(Nu|\#925);/N/g;
       $result =~ s/&(Xi|\#926);/\\ensuremath\{\\Xi\}/g;
       $result =~ s/&(Omicron|\#927);/O/g;
       $result =~ s/&(Pi|\#928);/\\ensuremath\{\\Pi\}/g;
       $result =~ s/&(Rho|\#929);/P/g;
       $result =~ s/&(Sigma|\#931);/\\ensuremath\{\\Sigma\}/g;
       $result =~ s/&(Tau|\#932);/T/g;
       $result =~ s/&(Upsilon|\#933);/\\ensuremath\{\\Upsilon\}/g;
       $result =~ s/&(Phi|\#934);/\\ensuremath\{\\Phi\}/g;
       $result =~ s/&(Chi|\#935);/X/g;
       $result =~ s/&(Psi|\#936);/\\ensuremath\{\\Psi\}/g;
       $result =~ s/&(Omega|\#937);/\\ensuremath\{\\Omega\}/g;
   #Arrows (extended HTML 4.01)
       $result =~ s/&(larr|\#8592);/\\ensuremath\{\\leftarrow\}/g;
       $result =~ s/&(uarr|\#8593);/\\ensuremath\{\\uparrow\}/g;
       $result =~ s/&(rarr|\#8594);/\\ensuremath\{\\rightarrow\}/g;
       $result =~ s/&(darr|\#8595);/\\ensuremath\{\\downarrow\}/g;
       $result =~ s/&(harr|\#8596);/\\ensuremath\{\\leftrightarrow\}/g;
       $result =~ s/&(lArr|\#8656);/\\ensuremath\{\\Leftarrow\}/g;
       $result =~ s/&(uArr|\#8657);/\\ensuremath\{\\Uparrow\}/g;
       $result =~ s/&(rArr|\#8658);/\\ensuremath\{\\Rightarrow\}/g;
       $result =~ s/&(dArr|\#8659);/\\ensuremath\{\\Downarrow\}/g;
       $result =~ s/&(hArr|\#8660);/\\ensuremath\{\\Leftrightarrow\}/g;
   #Mathematical Operators (extended HTML 4.01)
       $result =~ s/&(forall|\#8704);/\\ensuremath\{\\forall\}/g;
       $result =~ s/&(part|\#8706);/\\ensuremath\{\\partial\}/g;
       $result =~ s/&(exist|\#8707);/\\ensuremath\{\\exists\}/g;
       $result =~ s/&(empty|\#8709);/\\ensuremath\{\\emptyset\}/g;
       $result =~ s/&(nabla|\#8711);/\\ensuremath\{\\nabla\}/g;
       $result =~ s/&(isin|\#8712);/\\ensuremath\{\\in\}/g;
       $result =~ s/&(notin|\#8713);/\\ensuremath\{\\notin\}/g;
       $result =~ s/&(ni|\#8715);/\\ensuremath\{\\ni\}/g;
       $result =~ s/&(prod|\#8719);/\\ensuremath\{\\prod\}/g;
       $result =~ s/&(sum|\#8721);/\\ensuremath\{\\sum\}/g;
       $result =~ s/&(minus|\#8722);/\\ensuremath\{-\}/g;
       $result =~ s/–/\\ensuremath\{-\}/g;
       $result =~ s/&(lowast|\#8727);/\\ensuremath\{*\}/g;
       $result =~ s/&(radic|\#8730);/\\ensuremath\{\\surd\}/g;
       $result =~ s/&(prop|\#8733);/\\ensuremath\{\\propto\}/g;
       $result =~ s/&(infin|\#8734);/\\ensuremath\{\\infty\}/g;
       $result =~ s/&(ang|\#8736);/\\ensuremath\{\\angle\}/g;
       $result =~ s/&(and|\#8743);/\\ensuremath\{\\wedge\}/g;
       $result =~ s/&(or|\#8744);/\\ensuremath\{\\vee\}/g;
       $result =~ s/&(cap|\#8745);/\\ensuremath\{\\cap\}/g;
       $result =~ s/&(cup|\#8746);/\\ensuremath\{\\cup\}/g;
       $result =~ s/&(int|\#8747);/\\ensuremath\{\\int\}/g;
       $result =~ s/&(sim|\#8764);/\\ensuremath\{\\sim\}/g;
       $result =~ s/&(cong|\#8773);/\\ensuremath\{\\cong\}/g;
       $result =~ s/&(asymp|\#8776);/\\ensuremath\{\\approx\}/g;
       $result =~ s/&(ne|\#8800);/\\ensuremath\{\\not=\}/g;
       $result =~ s/&(equiv|\#8801);/\\ensuremath\{\\equiv\}/g;
       $result =~ s/&(le|\#8804);/\\ensuremath\{\\leq\}/g;
       $result =~ s/&(ge|\#8805);/\\ensuremath\{\\geq\}/g;
       $result =~ s/&(sub|\#8834);/\\ensuremath\{\\subset\}/g;
       $result =~ s/&(sup|\#8835);/\\ensuremath\{\\supset\}/g;
       $result =~ s/&(nsub|\#8836);/\\ensuremath\{\\not\\subset\}/g;
       $result =~ s/&(sube|\#8838);/\\ensuremath\{\\subseteq\}/g;
       $result =~ s/&(supe|\#8839);/\\ensuremath\{\\supseteq\}/g;
       $result =~ s/&(oplus|\#8853);/\\ensuremath\{\\oplus\}/g;
       $result =~ s/&(otimes|\#8855);/\\ensuremath\{\\otimes\}/g;
       $result =~ s/&(perp|\#8869);/\\ensuremath\{\\perp\}/g;
       $result =~ s/&(sdot|\#8901);/\\ensuremath\{\\cdot\}/g;
   #Geometric Shapes (extended HTML 4.01)
       $result =~ s/&(loz|\#9674);/\\ensuremath\{\\Diamond\}/g;
   #Miscellaneous Symbols (extended HTML 4.01)
       $result =~ s/&(spades|\#9824);/\\ensuremath\{\\spadesuit\}/g;
       $result =~ s/&(clubs|\#9827);/\\ensuremath\{\\clubsuit\}/g;
       $result =~ s/&(hearts|\#9829);/\\ensuremath\{\\heartsuit\}/g;
       $result =~ s/&(diams|\#9830);/\\ensuremath\{\\diamondsuit\}/g;
   #   Chemically useful 'things' contributed by Hon Kie (bug 4652).
   
       $result =~ s/&\#8636;/\\ensuremath\{\\leftharpoonup\}/g;
       $result =~ s/&\#8637;/\\ensuremath\{\\leftharpoondown\}/g;
       $result =~ s/&\#8640;/\\ensuremath\{\\rightharpoonup\}/g;
       $result =~ s/&\#8641;/\\ensuremath\{\\rightharpoondown\}/g;
       $result =~ s/&\#8652;/\\ensuremath\{\\rightleftharpoons\}/g;
       $result =~ s/&\#8605;/\\ensuremath\{\\leadsto\}/g;
       $result =~ s/&\#8617;/\\ensuremath\{\\hookleftarrow\}/g;
       $result =~ s/&\#8618;/\\ensuremath\{\\hookrightarrow\}/g;
       $result =~ s/&\#8614;/\\ensuremath\{\\mapsto\}/g;
       $result =~ s/&\#8599;/\\ensuremath\{\\nearrow\}/g;
       $result =~ s/&\#8600;/\\ensuremath\{\\searrow\}/g;
       $result =~ s/&\#8601;/\\ensuremath\{\\swarrow\}/g;
       $result =~ s/&\#8598;/\\ensuremath\{\\nwarrow\}/g;
   
       # Left/right quotations:
   
       $result =~ s/&(ldquo|#8220);/\`\`/g;
       $result =~ s/&(rdquo|#8221);/\'\'/g;
   
   
   
     return $result;      return $result;
 }  }
   
   
     sub page_format {                    #width, height, oddsidemargin, evensidemargin, topmargin
  my ($papersize,$layout,$numberofcolumns) = @_;   my %page_formats=
  my ($textwidth,$textheight,$oddoffset,$evenoffset) = (0,0,0,0);      ('letter' => {
  if ($papersize=~/Letter/) {   'book' => {
     if ($layout eq 'CAPA') {       '1' => [ '7.1 in','9.8 in', '-0.57 in','-0.57 in','0.275 in'],
  if ($numberofcolumns == 1) {       '2' => ['3.66 in','9.8 in', '-0.57 in','-0.57 in','0.275 in']
     $textwidth = '18 cm';   },
     $textheight = '25.9 cm';   'album' => {
     $oddoffset = '-0.57 in';       '1' => [ '8.8 in', '6.8 in','-0.55 in',  '-0.55 in','0.394 in'],
     $evenoffset = '-0.57 in';       '2' => [ '4.8 in', '6.8 in','-0.5 in', '-1.0 in','3.5 in']
  } elsif ($numberofcolumns == 2) {   },
     $textwidth = '93 mm';       },
     $textheight = '25.9 cm';       'legal' => {
     $oddoffset = '-0.57 in';   'book' => {
     $evenoffset = '-0.57 in';       '1' => ['7.1 in','13 in',,'-0.57 in','-0.57 in','-0.5 in'],
  }       '2' => ['3.66 in','13 in','-0.57 in','-0.57 in','-0.5 in']
     } elsif ($layout eq 'CBI') {   },
  if ($numberofcolumns eq '1') {   'album' => {
     $textwidth = '8.8 in';       '1' => ['12 in','7.1 in',,'-0.57 in','-0.57 in','-0.5 in'],
     $textheight = '6.8 in';               '2' => ['6.0 in','7.1 in','-1 in','-1 in','5 in']
     $oddoffset = '-40 pt';            },
     $evenoffset = '-60 pt';       },
  } elsif ($numberofcolumns == 2) {       'tabloid' => {
     $textwidth = '4.2 in';   'book' => {
     $textheight = '6.8 in';       '1' => ['9.8 in','16 in','-0.57 in','-0.57 in','-0.5 in'],
     $oddoffset = '-40 pt';       '2' => ['4.9 in','16 in','-0.57 in','-0.57 in','-0.5 in']
     $evenoffset = '-60 pt';   },
  }   'album' => {
     }       '1' => ['16 in','9.8 in','-0.57 in','-0.57 in','-0.5 in'],
 #    } elsif($papersize=~/Legal/) {       '2' => ['16 in','4.9 in','-0.57 in','-0.57 in','-0.5 in']
 #    } elsif($papersize=~/Ledger/) {            },
 #    } elsif($papersize=~/Executive/) {       },
     } elsif($papersize=~/A4/) {       'executive' => {
     if ($layout eq 'CAPA') {   'book' => {
  if ($numberofcolumns == 1) {       '1' => ['6.8 in','9 in','-0.57 in','-0.57 in','1.2 in'],
     $textwidth = '18 cm';       '2' => ['3.1 in','9 in','-0.57 in','-0.57 in','1.2 in']
     $textheight = '28 cm';   },
     $oddoffset = '-0.57 in';   'album' => {
     $evenoffset = '-0.57 in';       '1' => [],
  } elsif ($numberofcolumns == 2) {       '2' => []
     $textwidth = '96 mm';            },
     $textheight = '2 cm';       },
     $oddoffset = '-0.57 in';       'a2' => {
     $evenoffset = '-0.57 in';   'book' => {
  }       '1' => [],
     } elsif ($layout eq 'CBI') {       '2' => []
  if ($numberofcolumns eq '1') {   },
     $textwidth = '8.5 in';   'album' => {
     $textheight = '7.7 in';       '1' => [],
     $oddoffset = '-40 pt';       '2' => []
     $evenoffset = '-60 pt';            },
  } elsif ($numberofcolumns == 2) {       },
     $textwidth = '3.9 in';       'a3' => {
     $textheight = '7.7 in';   'book' => {
     $oddoffset = '-40 pt';       '1' => [],
     $evenoffset = '-60 pt';       '2' => []
  }   },
     }   'album' => {
 #    } elsif($papersize=~/A3/) {       '1' => [],
 #    } elsif($papersize=~/A2/) {       '2' => []
 #    } elsif($papersize=~/A5/) {            },
 #    } elsif($papersize=~/A6/) {       },
  }       'a4' => {
  return $textwidth,$textheight,$oddoffset,$evenoffset;   'book' => {
     }       '1' => ['17.6 cm','27.2 cm','-1.397 cm','-2.11 cm','-1.27 cm'],
        '2' => [ '9.1 cm','27.2 cm','-1.397 cm','-2.11 cm','-1.27 cm']
    },
    'album' => {
        '1' => ['21.59 cm','19.558 cm','-1.397cm','-2.11 cm','0 cm'],
        '2' => ['9.91 cm','19.558 cm','-1.397 cm','-2.11 cm','0 cm']
    },
        },
        'a5' => {
    'book' => {
        '1' => [],
        '2' => []
    },
    'album' => {
        '1' => [],
        '2' => []
             },
        },
        'a6' => {
    'book' => {
        '1' => [],
        '2' => []
    },
    'album' => {
        '1' => [],
        '2' => []
             },
        },
        );
   
   sub page_format {
   #
   #Supported paper format: "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]"
   # 
       my ($papersize,$layout,$numberofcolumns) = @_; 
       return @{$page_formats{$papersize}->{$layout}->{$numberofcolumns}};
   }
   
   
 sub get_name {  sub get_name {
     my ($uname,$udom)=@_;      my ($uname,$udom)=@_;
     if (!defined($uname)) { $uname=$ENV{'user.name'}; }      if (!defined($uname)) { $uname=$env{'user.name'}; }
     if (!defined($udom)) { $uname=$ENV{'user.domain'}; }      if (!defined($udom)) { $udom=$env{'user.domain'}; }
     my $plainname=&Apache::loncommon::plainname($uname,$udom);      my $plainname=&Apache::loncommon::plainname($uname,$udom);
     if ($plainname=~/^\s*$/) { $plainname=$uname; }      if ($plainname=~/^\s*$/) { $plainname=$uname.'@'.$udom; }
     return &Apache::lonxml::latex_special_symbols($plainname,undef,undef,     $plainname=&Apache::lonxml::latex_special_symbols($plainname,'header');
   'header');      return $plainname;
   }
   
   sub get_course {
       my $courseidinfo;
       if (defined($env{'request.course.id'})) {
    $courseidinfo = &Apache::lonxml::latex_special_symbols(&unescape($env{'course.'.$env{'request.course.id'}.'.description'}),'header');
       }
       return $courseidinfo;
 }  }
   
 sub page_format_transformation {  sub page_format_transformation {
     my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment) = @_;       my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment,$tableofcontents,$indexlist,$selectionmade) = @_; 
     my ($textwidth,$textheight,$oddoffset,$evenoffset);      my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin);
  $assignment=~s/_/ /g;  
         if ($numberofcolumns != 1) {      if ($selectionmade eq '4') {
           ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$layout,$numberofcolumns);   if ($choice eq 'all_problems') {
               $assignment=&mt('Problems from the Whole Course');
  } else {   } else {
   ($textwidth,$textheight,$oddoffset,$evenoffset) = ($ENV{'form.width'},$ENV{'form.height'},$ENV{'form.leftmargin'},$ENV{'form.leftmargin'});              $assignment=&mt('Resources from the Whole Course');
  }   }
       } else {
    $assignment=&Apache::lonxml::latex_special_symbols($assignment,'header');
       }
       ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = &page_format($papersize,$layout,$numberofcolumns,$topmargin);
   
   
     my $name = &get_name();      my $name = &get_name();
     if ($name =~ /^\s*$/) {      my $courseidinfo = &get_course();
  $name=&Apache::lonxml::latex_special_symbols($ENV{'user.name'},undef,      if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
      undef,'header');      my $header_text  = $parmhash{'print_header_format'};
     }      $header_text     = &format_page_header($textwidth, $header_text, $assignment,
     my $courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'course.'.$ENV{'request.course.id'}.'.description'}),'','','header');     $courseidinfo, $name);
     if ($layout eq 'CBI') {      my $topmargintoinsert = '';
     $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$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  $courseidinfo} \\vskip 5 mm /;      if ($topmargin ne '0') {$topmargintoinsert='\setlength{\topmargin}{'.$topmargin.'}';}
     } elsif ($layout eq 'CAPA') {      my $fancypagestatement='';
       if ($numberofcolumns eq '2') {
    $fancypagestatement="\\fancyhead{}\\fancyhead[LO]{$header_text}";
       } else {
    $fancypagestatement="\\rhead{}\\chead{}\\lhead{$header_text}";
       }
       if ($layout eq 'album') {
       $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$oddoffset}\\setlength{\\evensidemargin}{$evenoffset}$topmargintoinsert\n\\setlength{\\textwidth}{$textwidth}\\setlength{\\textheight}{$textheight}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\n\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\usepackage{fancyhdr}\\addtolength{\\headheight}{\\baselineskip}\n\\pagestyle{fancy}$fancypagestatement\\usepackage{booktabs}\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1}\n /;
       } elsif ($layout eq 'book') {
  if ($choice ne 'All class print') {    if ($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}/;      $text =~ s/\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset $topmargintoinsert\n\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\n\\renewcommand{\\ref}{\\keephidden\}\\usepackage{fancyhdr}\\addtolength{\\headheight}{\\baselineskip}\\pagestyle{fancy}$fancypagestatement\\usepackage{booktabs}\\begin{document}\n\\voffset=-0\.8 cm\\setcounter{page}{1}\n/;
  } else {   } 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 /;      $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight = $textheight\\oddsidemargin = $evenoffset\n\\evensidemargin = $evenoffset $topmargintoinsert\\textwidth= $textwidth\\newlength{\\minipagewidth}\n\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\usepackage{booktabs}\\begin{document}\\voffset=-0\.8cm\n\\setcounter{page}{1}  \\vskip 5 mm\n /;
   
  }   }
    if ($papersize eq 'a4') {
       my $papersize_text;
       if ($perm{'pav'}) {
    $papersize_text = '\\special{papersize=210mm,297mm}';
       } else {
    $papersize_text = '\special{papersize=210mm,297mm}';
       }
       $text =~ s/(\\begin{document})/$1$papersize_text/;
    }
       }
       if ($tableofcontents eq 'yes') {$text=~s/(\\setcounter\{page\}\{1\})/$1 \\tableofcontents\\newpage /;}
       if ($indexlist eq 'yes') {
    $text=~s/(\\begin{document})/\\makeindex $1/;
    $text=~s/(\\end{document})/\\strut\\\\\\strut\\printindex $1/;
     }      }
     return $text;      return $text;
 }  }
Line 1163  sub page_cleanup { Line 1334  sub page_cleanup {
   
   
 sub details_for_menu {  sub details_for_menu {
       my ($helper)=@_;
       my $postdata=$env{'form.postdata'};
       if (!$postdata) { $postdata=$helper->{VARS}{'postdata'}; }
       my $name_of_resource = &Apache::lonnet::gettitle($postdata);
       my $symbolic = &Apache::lonnet::symbread($postdata);
       return if ( $symbolic eq '');
   
     my $name_of_resourse = $hash{'title_'.$hash{'ids_'.$ENV{'form.postdata'}}};      my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symbolic);
     my $symbolic = &Apache::lonnet::symbread($ENV{'form.postdata'});  
     my ($map,$id,$resource)=split(/___/,$symbolic);  
     $map=&Apache::lonnet::clutter($map);      $map=&Apache::lonnet::clutter($map);
     my $name_of_sequence;      my $name_of_sequence = &Apache::lonnet::gettitle($map);
     $name_of_sequence = $hash{'title_'.$hash{'ids_'.$map}};  
     if ($name_of_sequence =~ /^\s*$/) {      if ($name_of_sequence =~ /^\s*$/) {
  $map =~ m|([^/]+)$|;   $map =~ m|([^/]+)$|;
  $name_of_sequence = $1;   $name_of_sequence = $1;
     }      }
     my $name_of_map = $hash{'title_'.$hash{'ids_'.&Apache::lonnet::clutter($ENV{'request.course.uri'})}};      my $name_of_map = &Apache::lonnet::gettitle($env{'request.course.uri'});
     if ($name_of_map =~ /^\s*$/) {      if ($name_of_map =~ /^\s*$/) {
  $ENV{'request.course.uri'} =~ m|([^/]+)$|;   $env{'request.course.uri'} =~ m|([^/]+)$|;
  $name_of_map = $1;   $name_of_map = $1;
     }      }
     return ($name_of_resourse,$name_of_sequence,$name_of_map);      return ($name_of_resource,$name_of_sequence,$name_of_map);
   
 }  }
   
   sub copyright_line {
       return '\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\vspace*{-2 mm}\newline\noindent{\tiny Printed from LON-CAPA\copyright MSU{\hfill} Licensed under GNU General Public License } ';
   }
   my $end_of_student = "\n".'\special{ps:ENDOFSTUDENTSTAMP}'."\n";
   
 sub latex_corrections {  sub latex_corrections {
       my ($number_of_columns,$result,$selectionmade,$answer_mode) = @_;
     my ($number_of_columns,$result) = @_;  #    $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
       my $copyright = &copyright_line();
     $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;      if ($selectionmade eq '1' || $answer_mode eq 'only') {
    $result =~ s/(\\end{document})/\\strut\\vskip 0 mm $copyright $end_of_student $1/;
       } else {
    $result =~ s/(\\end{document})/\\strut\\vspace\*{-4 mm}\\newline $copyright $end_of_student $1/;
       }
     $result =~ s/\$number_of_columns/$number_of_columns/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\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
     $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;      $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
 #-- LaTeX corrections       #-- LaTeX corrections     
Line 1201  sub latex_corrections { Line 1381  sub latex_corrections {
  $first_comment = index($result,'<!--',$first_comment);   $first_comment = index($result,'<!--',$first_comment);
     }      }
     $result =~ s/^\s+$//gm; #remove empty lines      $result =~ s/^\s+$//gm; #remove empty lines
     $result =~ s/(\s)(\s+)/$1/g; #removes more than one empty space      #removes more than one empty space
       $result =~ s|(\s\s+)|($1=~/[\n\r]/)?"\n":" "|ge;
     $result =~ s/\\\\\s*\\vskip/\\vskip/gm;      $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
     $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;      $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
     $result =~ s/{\\par }\s*\\\\/\\\\/gm;      $result =~ s/{\\par }\s*\\\\/\\\\/gm;
  $result =~ s/\\\\\s+\[/ \[/g;      $result =~ s/\\\\\s+\[/ \[/g;
     $result =~ s/\b__+\b/\\makebox\[1 cm\]\[b\]{\\hrulefill}/g;  
     #conversion of html characters to LaTeX equivalents      #conversion of html characters to LaTeX equivalents
     if ($result =~ m/&(\w+|#\d+);/) {      if ($result =~ m/&(\w+|#\d+);/) {
  $result = &character_chart($result);   $result = &character_chart($result);
     }      }
     $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;      $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
     $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;      $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
       return $result;
   }
   
   
   sub index_table {
       my $currentURL = shift;
       my $insex_string='';
       $currentURL=~s/\.([^\/+])$/\.$1\.meta/;
       $insex_string=&Apache::lonnet::metadata($currentURL,'keywords');
       return $insex_string;
   }
   
   
   sub IndexCreation {
       my ($texversion,$currentURL)=@_;
       my @key_words=split(/,/,&index_table($currentURL));
       my $chunk='';
       my $st=index $texversion,'\addcontentsline{toc}{subsection}{';
       if ($st>0) {
    for (my $i=0;$i<3;$i++) {$st=(index $texversion,'}',$st+1);}
    $chunk=substr($texversion,0,$st+1);
    substr($texversion,0,$st+1)=' ';
       }
       foreach my $key_word (@key_words) {
    if ($key_word=~/\S+/) {
       $texversion=~s/\b($key_word)\b/$1 \\index{$key_word} /i;
    }
       }
       if ($st>0) {substr($texversion,0,1)=$chunk;}
       return $texversion;
   }
   
   sub print_latex_header {
       my $mode=shift;
   
       return &Apache::londefdef::latex_header($mode);
   }
   
   sub path_to_problem {
       my ($urlp,$colwidth)=@_;
       $urlp=&Apache::lonnet::clutter($urlp);
   
       my $newurlp = '';
       $colwidth=~s/\s*mm\s*$//;
   #characters average about 2 mm in width
       if (length($urlp)*2 > $colwidth) {
    my @elements = split('/',$urlp);
    my $curlength=0;
    foreach my $element (@elements) {
       if ($element eq '') { next; }
       if ($curlength+(length($element)*2) > $colwidth) {
    $newurlp .=  '|\vskip -1 mm \verb|';
    $curlength=length($element)*2;
       } else {
    $curlength+=length($element)*2;
       }
       $newurlp.='/'.$element;
    }
       } else {
    $newurlp=$urlp;
       }
       return '{\small\noindent\verb|'.$newurlp.'|\vskip 0 mm}';
   }
   
   sub recalcto_mm {
       my $textwidth=shift;
       my $LaTeXwidth;
       if ($textwidth=~/(-?\d+\.?\d*)\s*cm/) {
    $LaTeXwidth = $1*10;
       } elsif ($textwidth=~/(-?\d+\.?\d*)\s*mm/) {
    $LaTeXwidth = $1;
       } elsif ($textwidth=~/(-?\d+\.?\d*)\s*in/) {
    $LaTeXwidth = $1*25.4;
       }
       $LaTeXwidth.=' mm';
       return $LaTeXwidth;
   }
   
   sub get_textwidth {
       my ($helper,$LaTeXwidth)=@_;
       my $textwidth=$LaTeXwidth;
       if ($helper->{'VARS'}->{'pagesize.width'}=~/\d+/ &&
    $helper->{'VARS'}->{'pagesize.widthunit'}=~/\w+/) {
    $textwidth=&recalcto_mm($helper->{'VARS'}->{'pagesize.width'}.' '.
    $helper->{'VARS'}->{'pagesize.widthunit'});
       }
       return $textwidth;
   }
   
   
   sub unsupported {
       my ($currentURL,$mode,$symb)=@_;
       if ($mode ne '') {$mode='\\'.$mode}
       my $result.= &print_latex_header($mode);
       if ($currentURL=~m|^(/adm/wrapper/)?ext/|) {
    $currentURL=~s|^(/adm/wrapper/)?ext/|http://|;
    my $title=&Apache::lonnet::gettitle($symb);
    $title = &Apache::lonxml::latex_special_symbols($title);
    $result.=' \strut \\\\ '.$title.' \strut \\\\ '.$currentURL.' ';
       } else {
    $result.=$currentURL;
       }
       $result.= '\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill} \end{document}';
     return $result;      return $result;
 }  }
   
   #
   #  Map from helper layout style to the book/album:
   #
   sub map_laystyle {
       my ($laystyle) = @_;
       if ($laystyle eq 'L') {
    $laystyle='album';
       } else {
    $laystyle='book';
       }
       return $laystyle;
   }
   
   sub print_page_in_course {
       my ($helper, $rparmhash, $currentURL, $resources) = @_;
       my %parmhash       = %$rparmhash;
       my @page_resources = @$resources;
       my $mode = $helper->{'VARS'}->{'LATEX_TYPE'};
       my $symb = $helper->{'VARS'}->{'symb'};
   
   
       my $format_from_helper = $helper->{'VARS'}->{'FORMAT'};
   
   
       my @temporary_array=split /\|/,$format_from_helper;
       my ($laystyle,$numberofcolumns,$papersize,$pdfFormFields)=@temporary_array;
       $laystyle = &map_laystyle($laystyle);
       my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$laystyle,
         $numberofcolumns);
       my $LaTeXwidth=&recalcto_mm($textwidth); 
   
   
       if ($mode ne '') {$mode='\\'.$mode}
       my $result   =    &print_latex_header($mode);
       if ($currentURL=~m|^(/adm/wrapper/)?ext/|) {
    $currentURL=~s|^(/adm/wrapper/)?ext/|http://|;
    my $title=&Apache::lonnet::gettitle($symb);
    $title = &Apache::lonxml::latex_special_symbols($title);
       } else {
           my $esc_currentURL= $currentURL;
           $esc_currentURL =~ s/_/\\_/g;
    $result.=$esc_currentURL;
       }
       $result .= '\\\\';
   
 sub handler {      if ($helper->{'VARS'}->{'style_file'}=~/\w/) {
    &Apache::lonnet::appenv({'construct.style' =>
    $helper->{'VARS'}->{'style_file'}});
       } elsif ($env{'construct.style'}) {
    &Apache::lonnet::delenv('construct.style');
       }
   
       # First is the overall page description.  This is then followed by the 
       # components of the page. Each of which must be printed independently.
       my $the_page = shift(@page_resources); 
   
     my $r = shift;  
     my $helper;  
   
     # A hook for me to work without disturbing Alex.      foreach my $resource (@page_resources) {
     if (!$ENV{'form.jeremy'}) {   my $resource_src   = $resource->src(); # Essentially the URL of the resource.
         my $result = printHelper($r);   $result           .= $resource->title() . '\\\\';
         if (!ref($result)) {  
             return $result;   # Recurse if a .page:
   
    if ($resource_src =~ /.page$/i) {
       my $navmap         = Apache::lonnavmaps::navmap->new();
       my @page_resources = $navmap->retrieveResources($resource_src);
       $result           .= &print_page_in_course($helper, $rparmhash, 
          $resource_src, \@page_resources);
    }
    # these resources go through the XML transformer:
   
    elsif ($resource_src =~ /\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm)$/)  {
       my $urlp = &Apache::lonnet::clutter($resource_src);
       my %form;
       my %moreenv;
   
       &Apache::lonxml::remember_problem_counter();
       $moreenv{'request.filename'}=$urlp;
       if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {$form{'problemtype'}='exam';}
   
       $form{'grade_target'}  = 'tex';
       $form{'textwidth'}    = &get_textwidth($helper, $LaTeXwidth);
               $form{'pdfFormFields'} = 'no';
       $form{'showallfoils'} = $helper->{'VARS'}->{'showallfoils'};    
       
       $form{'problem_split'}=$parmhash{'problem_stream_switch'};
       $form{'suppress_tries'}=$parmhash{'suppress_tries'};
       $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
       $form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
       $form{'print_annotations'}=$helper->{'VARS'}->{'PRINT_ANNOTATIONS'};
       if (($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') ||
    ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes')) {
    $form{'problem_split'}='yes';
       }
       my $rndseed = time;
       if ($helper->{'VARS'}->{'curseed'}) {
    $rndseed=$helper->{'VARS'}->{'curseed'};
       }
       $form{'rndseed'}=$rndseed;
       &Apache::lonnet::appenv(\%moreenv);
       
       &Apache::lonxml::clear_problem_counter();
   
       my $texversion = &ssi_with_retries($urlp, $ssi_retry_count, %form);
   
   
       # current document with answers.. no need to encap in minipage
       #  since there's only one answer.
   
       if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
          ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
    my %answerform = %form;
   
   
    $answerform{'problem_split'}=$parmhash{'problem_stream_switch'};
    $answerform{'grade_target'}='answer';
    $answerform{'answer_output_mode'}='tex';
    $answerform{'rndseed'}=$rndseed;
                   if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {
       $answerform{'problemtype'}='exam';
    }
    $resources_printed .= $urlp.':';
    my $answer=&ssi_with_retries($urlp,$ssi_retry_count, %answerform);
   
    if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
       $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
    } else {
       $texversion= &print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
       if ($helper->{'VARS'}->{'construction'} ne '1') {
    my $title = &Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'});
    $title = &Apache::lonxml::latex_special_symbols($title);
    $texversion.='\vskip 0 mm \noindent\textbf{'.$title.'}\vskip 0 mm ';
    $texversion.=&path_to_problem($urlp,$LaTeXwidth);
       } else {
    $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
    my $URLpath=$urlp;
    $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
    $texversion.=&path_to_problem($URLpath,$LaTeXwidth);
       }
       $texversion.='\vskip 1 mm '.$answer.'\end{document}';
    }
   
   
   
   
       
       }
       # Print annotations.
   
   
       if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
    my $annotation .= &annotate($currentURL);
    $texversion =~ s/(\\keephidden{ENDOFPROBLEM})/$annotation$1/;
       }
       
       if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
    $texversion=&IndexCreation($texversion,$currentURL);
       }
       if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
    $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$currentURL| \\strut\\\\\\strut /;
   
       }
       $texversion = &latex_header_footer_remove($texversion);
   
       # the first remaining line is a comment from londefdef the second
       # line  seems to be an extraneous \vskip 1mm \\\\ :
               # (imperfect removal from header_footer_remove?
   
       $texversion =~ s/\\vskip 1mm \\\\\\\\//;
   
       $result .= $texversion;
       if ($currentURL=~m/\.page\s*$/) {
    ($result,$numberofcolumns) = &page_cleanup($result);
       }
    }
       }
   
       $result.= '\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill} \end{document}';
       return $result;
   }
   
   
   #
   # List of recently generated print files
   #
   sub recently_generated {
       my $r=shift;
       my $prtspool=$r->dir_config('lonPrtDir');
       my $zip_result;
       my $pdf_result;
       opendir(DIR,$prtspool);
   
       my @files = 
    grep(/^$env{'user.name'}_$env{'user.domain'}_printout_(\d+)_.*\.(pdf|zip)$/,readdir(DIR));
       closedir(DIR);
   
       @files = sort {
    my ($actime) = (stat($prtspool.'/'.$a))[10];
    my ($bctime) = (stat($prtspool.'/'.$b))[10];
    return $bctime <=> $actime;
       } (@files);
   
       foreach my $filename (@files) {
    my ($ext) = ($filename =~ m/(pdf|zip)$/);
    my ($cdev,$cino,$cmode,$cnlink,
       $cuid,$cgid,$crdev,$csize,
       $catime,$cmtime,$cctime,
       $cblksize,$cblocks)=stat($prtspool.'/'.$filename);
           my $ext_text = 'pdf' ? &mt('PDF File'):&mt('Zip File');
    my $result=&Apache::loncommon::start_data_table_row()
                     .'<td>'
                     .'<a href="/prtspool/'.$filename.'">'.$ext_text.'</a>'
                     .'</td>'
                     .'<td>'.&Apache::lonlocal::locallocaltime($cctime).'</td>'
                     .'<td align="right">'.$csize.'</td>'
                     .&Apache::loncommon::end_data_table_row();
    if ($ext eq 'pdf') { $pdf_result .= $result; }
    if ($ext eq 'zip') { $zip_result .= $result; }
       }
       if ($zip_result || $pdf_result) {
           $r->print('<hr />');
       }
       if ($zip_result) {
    $r->print('<h3>'.&mt('Recently generated printout zip files')."</h3>\n"
                     .&Apache::loncommon::start_data_table()
                     .&Apache::loncommon::start_data_table_header_row()
                     .'<th>'.&mt('Download').'</th>'
                     .'<th>'.&mt('Creation Date').'</th>'
                     .'<th>'.&mt('File Size (Bytes)').'</th>'
                     .&Apache::loncommon::end_data_table_header_row()
                     .$zip_result
                     .&Apache::loncommon::end_data_table()
           );
       }
       if ($pdf_result) {
    $r->print('<h3>'.&mt('Recently generated printouts')."</h3>\n"
                     .&Apache::loncommon::start_data_table()
                     .&Apache::loncommon::start_data_table_header_row()
                     .'<th>'.&mt('Download').'</th>'
                     .'<th>'.&mt('Creation Date').'</th>'
                     .'<th>'.&mt('File Size (Bytes)').'</th>'
                     .&Apache::loncommon::end_data_table_header_row()
                     .$pdf_result
                     .&Apache::loncommon::end_data_table()
           );
       }
   }
   
   #
   #   Retrieve the hash of page breaks.
   #
   #  Inputs:
   #    helper   - reference to helper object.
   #  Outputs
   #    A reference to a page break hash.
   #
   #
   # use Data::Dumper;
   # sub dump_helper_vars {
   #    my ($helper) = @_;
   #    my $helpervars = Dumper($helper->{'VARS'});
   #    &Apache::lonnet::logthis("Dump of helper vars:\n $helpervars");
   #}
   
   sub get_page_breaks  {
       my ($helper) = @_;
       my %page_breaks;
   
       foreach my $break (split /\|\|\|/, $helper->{'VARS'}->{'FINISHPAGE'}) {
    $page_breaks{$break} = 1;
       }
       return %page_breaks;
   }
   # 
   #   Returns text to insert for any extra vskip prior to the resource.
   #   Parameters:
   #     helper   - Reference to the helper object driving the printout.
   #     resource - Identifies the resource about to be printed.
   #
   #   This is done as follows:
   #    POSSIBLE_RESOURCES has the list of possible resources.
   #    EXTRASPACE         has the list of extra space values.
   #    EXTRASPACE_UNITS   is the set of resources for which the units are
   #                       mm. All others are 'in'.
   #    
   #    The resource is found in the POSSIBLE_RESOURCES to get the index
   #    of the EXTRASPACE value.
   #
   #   In order to speed this up for lengthy printouts, the first time,
   #   POSSIBLE_RESOURCES is turned into a look up hash and
   #   EXTRASPACE is turned into an array.
   #
   
   
   my %possible_resources;
   my %extraspace_mm;
   my @extraspace;
   my $skips_loaded       = 0;
   
   #  Function to load the skips hash and array
   
   sub load_skips {
   
       my ($helper)  = @_;
   
       #  If this is the first time, unrap the resources and extra spaces:
   
       if (!$skips_loaded) {
    @extraspace = (split(/\|\|\|/, $helper->{'VARS'}->{'EXTRASPACE'}));
    my @resource_list = (split(/\|\|\|/, $helper->{'VARS'}->{'POSSIBLE_RESOURCES'}));
    my $i = 0;
    foreach my $resource (@resource_list) {
       $possible_resources{$resource} = $i;
       $i++;
    }
    foreach my $mm_resource (split(/\|\|\|/, $helper->{'VARS'}->{'EXTRASPACE_UNITS'})) {
       $extraspace_mm{$mm_resource} = 1;
    }
    $skips_loaded = 1;
       }
   }
   
   sub get_extra_vspaces {
       my ($helper, $resource) = @_;
   
       &load_skips($helper);
   
       #  Lookup the resource in the possible resources hash.. that is the index
       # into the extraspace array that gives us either an empty string or
       # the number of mm to skip:
   
       my $index = $possible_resources{$resource};
       my $skip  = $extraspace[$index];
   
       my $result = '';
       if ($skip ne '') {
    my $units = 'in';
    if (defined($extraspace_mm{$resource})) {
       $units = 'mm';
    }
    $result = '\vskip '.$skip.' '.$units;
       }
   
   
       return $result;
   
   
   }
   
   #
   #  The resource chooser part of the helper needs more than just
   #  the value of the extraspaces var to recover the value into a text
   #  field option.  This sub produces the required format for the saved var:
   #  specifically 
   #    ||| separated fields of the form resourcename=value
   #
   #  Parameters:
   #    $helper     - Refers to the helper we are configuring
   #  Implicit input:
   #     $helper->{'VARS'}->{'EXTRASPACE'}  - the spaces helper var has the text field
   #                                          value.
   #     $helper->{'VARS'}->{'EXTRASPACE_UNITS'} - units for the skips (checkboxes).
   #     $helper->{'VARS'}->{'POSSIBLE_RESOURCES'}  - has the list of resources. |||
   #                                          separated of course.
   #  Implicit outputs:
   #     $env{'form.extraspace'}
   #     $env{'form.extraspace_units'}
   #
   sub set_form_extraspace {
       my ($helper) = @_;
   
       # the most convenient way to do this is to drive from the skips arrays/hash.
       # may not be the fastest, but this is once per print request so it's not so
       # speed critical:
   
       &load_skips($helper);
   
       my $result = '';
   
       foreach my $resource (keys(%possible_resources)) {
    my $vskip = $extraspace[$possible_resources{$resource}];
    $result  .= $resource .'=' . $vskip . '|||';
       }
   
       $env{'form.extraspace'}  = $result;
       $env{'form.extraspace_units'} = $helper->{'VARS'}->{'EXTRASPACE_UNITS'};
       return $result;
       
   }
   
   #  Output a sequence (recursively if neeed)
   #  from construction space.
   # Parameters:
   #    url     = URL of the sequence to print.
   #    helper  - Reference to the helper hash.
   #    form    - Copy of the format hash.
   #    LaTeXWidth
   # Returns:
   #   Text to add to the printout.
   #   NOTE if the first element of the outermost sequence
   #   is itself a sequence, the outermost caller may need to
   #   prefix the latex with the page headers stuff.
   #
   sub print_construction_sequence {
       my ($currentURL, $helper, %form, $LaTeXwidth) = @_;
       my $result;
       my $rndseed=time;
       if ($helper->{'VARS'}->{'curseed'}) {
    $rndseed=$helper->{'VARS'}->{'curseed'};
       }
       my $errtext=&LONCAPA::map::mapread($currentURL);
       # 
       #  These make this all support recursing for subsequences.
       #
       my @order    = @LONCAPA::map::order;
       my @resources = @LONCAPA::map::resources; 
       for (my $member=0;$member<=$#order;$member++) {
    $resources[$order[$member]]=~/^([^:]*):([^:]*):/;
    my $urlp=$2;
    if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm)$/) {
       my $texversion='';
       if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
    $form{'problem_split'}=$parmhash{'problem_stream_switch'};
    $form{'suppress_tries'}=$parmhash{'suppress_tries'};
    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
    $form{'rndseed'}=$rndseed;
    $resources_printed .=$urlp.':';
    $texversion=&ssi_with_retries($urlp, $ssi_retry_count, %form);
       }
       if((($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
    ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) && 
          ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page)$/)) {
    #  Don't permanently modify %$form...
    my %answerform = %form;
    $answerform{'grade_target'}='answer';
    $answerform{'answer_output_mode'}='tex';
    $answerform{'rndseed'}=$rndseed;
    $answerform{'problem_split'}=$parmhash{'problem_stream_switch'};
    if ($urlp=~/\/res\//) {$env{'request.state'}='published';}
    $resources_printed .= $urlp.':';
    my $answer=&ssi_with_retries($urlp, $ssi_retry_count, %answerform);
    if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
       $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
    } else {
       # If necessary, encapsulate answer in minipage:
       
       $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
       my $title = &Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'});
       $title = &Apache::lonxml::latex_special_symbols($title);
       my $body ='\vskip 0 mm \noindent\textbf{'.$title.'}\vskip 0 mm ';
       $body.=&path_to_problem($urlp,$LaTeXwidth);
       $body.='\vskip 1 mm '.$answer.'\end{document}';
       $body = &encapsulate_minipage($body);
       $texversion.=$body;
    }
       }
       $texversion = &latex_header_footer_remove($texversion);
   
       if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
    $texversion=&IndexCreation($texversion,$urlp);
       }
       if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
    $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
       }
       $result.=$texversion;
   
    } elsif ($urlp=~/\.(sequence|page)$/) {
    
       # header:
   
       $result.='\strut\newline\noindent Sequence/page '.$urlp.'\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent ';
   
       # IF sequence, recurse:
       
       if ($urlp =~ /\.sequence$/) {
    my $sequence_url = $urlp;
    my $domain       = $env{'user.domain'}; # Constr. space only on local
    my $user         = $env{'user.name'};
   
    $sequence_url    =~ s/^\/res\/$domain/\/home/;
    $sequence_url    =~ s/^(\/home\/$user)/$1\/public_html/;
   # $sequence_url    =~ s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;
    $result .= &print_construction_sequence($sequence_url, 
    $helper, %form, 
    $LaTeXwidth);
       }
    }
    elsif ($urlp =~ /\.pdf$/i) {
       my $texversion;
       if ($member != 0) {
    $texversion .= '\cleardoublepage';
       }
   
       $texversion .= &include_pdf($urlp);
       $texversion = &latex_header_footer_remove($texversion);
       if ($member != $#order) {
    $texversion .= '\\ \cleardoublepage';
       }
       
       $result .= $texversion;
    }
       }
       if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\begin{document})/$1 \\fbox\{RANDOM SEED IS $rndseed\} /;}
       return $result;
   }
   
   sub output_data {
       my ($r,$helper,$rparmhash) = @_;
       my %parmhash = %$rparmhash;
       $ssi_error = 0; # This will be set nonzero by failing ssi's.
       $resources_printed = '';
       $font_size = $helper->{'VARS'}->{'fontsize'};
       my $do_postprocessing = 1;
       my $js = <<ENDPART;
   <script type="text/javascript">
       var editbrowser;
       function openbrowser(formname,elementname,only,omit) {
           var url = '/res/?';
           if (editbrowser == null) {
               url += 'launch=1&';
           }
           url += 'catalogmode=interactive&';
           url += 'mode=parmset&';
           url += 'form=' + formname + '&';
           if (only != null) {
               url += 'only=' + only + '&';
           } 
           if (omit != null) {
               url += 'omit=' + omit + '&';
         }          }
         $helper = $result;          url += 'element=' + elementname + '';
           var title = 'Browser';
           var options = 'scrollbars=1,resizable=1,menubar=0';
           options += ',width=700,height=600';
           editbrowser = open(url,title,options,'1');
           editbrowser.focus();
     }      }
   </script>
   ENDPART
   
     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');      # Breadcrumbs
     $r->send_http_header;      #FIXME: Choose better/different breadcrumbs?!? Links?
     $r->print(&Apache::loncommon::bodytag("Printing"));      my $brcrum = [{'href' => '',
                      'text' => 'Helper'}, #FIXME: Different origin possible than print out helper?
                     {'href' => '',
                      'text' => 'Preparing Printout'}];
   
       my $start_page  = &Apache::loncommon::start_page('Preparing Printout',
                                                        $js,
                                                        {'bread_crumbs' => $brcrum,});
       my $msg = &mt('Please stand by while processing your print request, this may take some time ...');
   
       $r->print($start_page."\n<p>\n$msg\n</p>\n");
   
       # fetch the pagebreaks and store them in the course environment
       # The page breaks will be pulled into the hash %page_breaks which is
       # indexed by symb and contains 1's for each break.
   
       $env{'form.pagebreaks'}  = $helper->{'VARS'}->{'FINISHPAGE'};
       &set_form_extraspace($helper);
       $env{'form.lastprinttype'} = $helper->{'VARS'}->{'PRINT_TYPE'}; 
       &Apache::loncommon::store_course_settings('print',
         {'pagebreaks'    => 'scalar',
          'extraspace'    => 'scalar',
          'extraspace_units' => 'scalar',
          'lastprinttype' => 'scalar'});
       my %page_breaks  = &get_page_breaks($helper);
   
       my $format_from_helper = $helper->{'VARS'}->{'FORMAT'};
       my ($result,$selectionmade) = ('','');
       my $number_of_columns = 1; #used only for pages to determine the width of the cell
       my @temporary_array=split /\|/,$format_from_helper;
       my ($laystyle,$numberofcolumns,$papersize,$pdfFormFields)=@temporary_array;
   
       $laystyle = &map_laystyle($laystyle);
       my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$laystyle,$numberofcolumns);
       my $assignment =  $env{'form.assignment'};
       my $LaTeXwidth=&recalcto_mm($textwidth); 
       my @print_array=();
       my @student_names=();
   
        
       #  Common settings for the %form has:
       # In some cases these settings get overriddent by specific cases, but the
       # settings are common enough to make it worthwhile factoring them out
       # here.
       #
       my %form;
       $form{'grade_target'} = 'tex';
       $form{'textwidth'}    = &get_textwidth($helper, $LaTeXwidth);
       $form{'pdfFormFields'} = 'no';
   
       # If form.showallfoils is set, then request all foils be shown:
       # privilege will be enforced both by not allowing the 
       # check box selecting this option to be presnt unless it's ok,
       # and by lonresponse's priv. check.
       # The if is here because lonresponse.pm only cares that
       # showallfoils is defined, not what the value is.
   
       if ($helper->{'VARS'}->{'showallfoils'} eq "1") { 
    $form{'showallfoils'} = $helper->{'VARS'}->{'showallfoils'};
       }
       
       if ($helper->{'VARS'}->{'style_file'}=~/\w/) {
    &Apache::lonnet::appenv({'construct.style' =>
    $helper->{'VARS'}->{'style_file'}});
       } elsif ($env{'construct.style'}) {
    &Apache::lonnet::delenv('construct.style');
       }
   
       if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'current_document') {
         #-- single document - problem, page, html, xml, ...
    my ($currentURL,$cleanURL);
   
    if ($helper->{'VARS'}->{'construction'} ne '1') {
               #prints published resource
       $currentURL=$helper->{'VARS'}->{'postdata'};
       $cleanURL=&Apache::lonenc::check_decrypt($currentURL);
    } else {
   
               #prints resource from the construction space
       $currentURL='/'.$helper->{'VARS'}->{'filename'};
       if ($currentURL=~/([^?]+)/) {$currentURL=$1;}
       $cleanURL=$currentURL;
    }
    $selectionmade = 1;
    if ($cleanURL!~m|^/adm/|
       && $cleanURL=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm)$/) {
       my $rndseed=time;
       my $texversion='';
       if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
    my %moreenv;
    $moreenv{'request.filename'}=$cleanURL;
                   if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {$form{'problemtype'}='exam';}
    $form{'problem_split'}=$parmhash{'problem_stream_switch'};
    $form{'suppress_tries'}=$parmhash{'suppress_tries'};
    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
    $form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
    $form{'print_annotations'}=$helper->{'VARS'}->{'PRINT_ANNOTATIONS'};
    if (($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') ||
       ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes')) {
       $form{'problem_split'}='yes';
    }
    if ($helper->{'VARS'}->{'curseed'}) {
       $rndseed=$helper->{'VARS'}->{'curseed'};
    }
    $form{'rndseed'}=$rndseed;
    &Apache::lonnet::appenv(\%moreenv);
   
    &Apache::lonxml::clear_problem_counter();
   
    $resources_printed .= $currentURL.':';
    $texversion.=&ssi_with_retries($currentURL,$ssi_retry_count, %form);
   
     if ($ENV{'request.course.id'}) {   #  Add annotations if required:
  my $fn=$ENV{'request.course.fn'};      
  tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);   &Apache::lonxml::clear_problem_counter();
     }  
    &Apache::lonnet::delenv('request.filename');
 #-- start form      }
     &headerform($r);      # current document with answers.. no need to encap in minipage
 #-- menu for output      #  since there's only one answer.
     unless  ($ENV{'form.phase'}) {  
  &menu_for_output($r);      if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
     }         ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
 #-- additional menu for class printing   $form{'problem_split'}=$parmhash{'problem_stream_switch'};
      if ($ENV{'form.phase'} eq 'two') {   $form{'grade_target'}='answer';
  if($ENV{'form.choice'} eq 'Standard LaTeX output for whole primary sequence') {   $form{'answer_output_mode'}='tex';
      &sequence_content_menu(0,$r);   $form{'rndseed'}=$rndseed;
  } elsif($ENV{'form.choice'} eq 'Standard LaTeX output for the primary sequence') {                  if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {
      &sequence_content_menu(1,$r);      $form{'problemtype'}='exam';
  } elsif($ENV{'form.choice'} eq 'All class print') {   }
      &additional_class_menu($r);   $resources_printed .= $currentURL.':';
  } elsif($ENV{'form.choice'} eq 'Subdirectory print') {   my $answer=&ssi_with_retries($currentURL,$ssi_retry_count, %form);
      &problem_choice_menu($r);  
   
    if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
       $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
    } else {
       $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
       if ($helper->{'VARS'}->{'construction'} ne '1') {
    my $title = &Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'});
    $title = &Apache::lonxml::latex_special_symbols($title);
    $texversion.='\vskip 0 mm \noindent\textbf{'.$title.'}\vskip 0 mm ';
    $texversion.=&path_to_problem($cleanURL,$LaTeXwidth);
       } else {
    $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
    my $URLpath=$cleanURL;
    $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
    $texversion.=&path_to_problem($URLpath,$LaTeXwidth);
       }
       $texversion.='\vskip 1 mm '.$answer.'\end{document}';
    }
   
   
   
   
       
       }
       # Print annotations.
   
   
       if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
    my $annotation .= &annotate($currentURL);
    $texversion =~ s/(\\keephidden{ENDOFPROBLEM})/$annotation$1/;
       }
   
   
       if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
    $texversion=&IndexCreation($texversion,$currentURL);
       }
       if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
    $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$currentURL| \\strut\\\\\\strut /;
   
       }
       $result .= $texversion;
       if ($currentURL=~m/\.page\s*$/) {
    ($result,$number_of_columns) = &page_cleanup($result);
       }
           } elsif ($cleanURL!~m|^/adm/|
    && $currentURL=~/\.(sequence|page)$/ && $helper->{'VARS'}->{'construction'} eq '1') {
               #printing content of sequence from the construction space
   
   
       $currentURL=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;
       $result .= &print_construction_sequence($currentURL, $helper, %form,
       $LaTeXwidth);
       $result .= '\end{document}';  
       if (!($result =~ /\\begin\{document\}/)) {
    $result = &print_latex_header() . $result;
       }
       # End construction space sequence.
    } elsif ($cleanURL=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) { 
    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
    if ($currentURL=~/\/syllabus$/) {$currentURL=~s/\/res//;}
    $resources_printed .= $currentURL.':';
    my $texversion = &ssi_with_retries($currentURL, $ssi_retry_count, %form);
    if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
       my $annotation = &annotate($currentURL);
       $texversion    =~ s/(\\end{document})/$annotation$1/;
    }
    $result .= $texversion;
    } elsif ($cleanURL =~/\.tex$/) {
       # For this sort of print of a single LaTeX file,
       # We can just print the LaTeX file as it is uninterpreted in any way:
       #
   
       $result = &fetch_raw_resource($currentURL);
       if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
    my $annotation = &annotate($currentURL);
    $result =~ s/(\\end{document})/$annotation$1/;
       }
   
       $do_postprocessing = 0; # Don't massage the result.
   
    } elsif ($cleanURL =~ /\.pdf$/i) {
       $result .= &include_pdf($cleanURL);
       $result .= '\end{document}';
    } elsif ($cleanURL =~ /\.page$/i) { #  Print page in non construction space contexts.
   
       # Determine the set of resources in the map of the page:
   
       my $navmap         =  Apache::lonnavmaps::navmap->new();
       my @page_resources =  $navmap->retrieveResources($cleanURL);
       $result           .=  &print_page_in_course($helper, $rparmhash,
    $cleanURL, \@page_resources);
   
          
    } else {
       $result.=&unsupported($currentURL,$helper->{'VARS'}->{'LATEX_TYPE'},
     $helper->{'VARS'}->{'symb'});
    }
       } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems')       or
        ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_in_page') or
        ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_resources_in_page') or
                ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
                ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems')       or
        ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_resources')      or # BUGBUG
        ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences') 
        ) {
   
    
           #-- produce an output string
    if (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems')  or
       ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_in_page') ) {
       $selectionmade = 2;
    } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
    ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_resources_in_page'))
    {
       $selectionmade = 3;
    } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') 
    ) {
       $selectionmade = 4;
    } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_resources') {  #BUGBUG
       $selectionmade = 4;
    } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences') {
       $selectionmade = 7;
    }
    $form{'problem_split'}=$parmhash{'problem_stream_switch'};
    $form{'suppress_tries'}=$parmhash{'suppress_tries'};
    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
    $form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
    $form{'print_annotations'} = $helper->{'VARS'}->{'PRINT_ANNOTATIONS'};
    if (($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes')   ||
       ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') ) {
       $form{'problem_split'}='yes';
    }
    my $flag_latex_header_remove = 'NO';
    my $flag_page_in_sequence = 'NO';
    my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
    my $prevassignment='';
   
    &Apache::lonxml::clear_problem_counter();
   
    my $pbreakresources = keys %page_breaks;
    for (my $i=0;$i<=$#master_seq;$i++) {
   
       &Apache::lonenc::reset_enc();
   
   
       # Note due to document structure, not allowed to put \newpage
       # prior to the first resource
   
       if (defined $page_breaks{$master_seq[$i]}) {
    if($i != 0) {
       $result.="\\newpage\n";
    }
       }
       $result .= &get_extra_vspaces($helper, $master_seq[$i]);
       my ($sequence,$middle_thingy,$urlp)=&Apache::lonnet::decode_symb($master_seq[$i]);
       $urlp=&Apache::lonnet::clutter($urlp);
       $form{'symb'}=$master_seq[$i];
   
       my $assignment=&Apache::lonxml::latex_special_symbols(&Apache::lonnet::gettitle($sequence),'header'); #title of the assignment which contains this problem
   
       if ($selectionmade==7) {$helper->{VARS}->{'assignment'}=$assignment;}
       if ($i==0) {$prevassignment=$assignment;}
       my $texversion='';
       if ($urlp!~m|^/adm/|
    && $urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
    $resources_printed .= $urlp.':';
    &Apache::lonxml::remember_problem_counter();
    if ($flag_latex_header_remove eq 'NO') {
       $texversion.=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});  # RF
                       unless (($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only') ||
                               (($i==0) &&
                                (($urlp=~/\.page$/) ||
                                 ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_in_page') ||
                                 ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_resources_in_page')))) {
                           $flag_latex_header_remove = 'YES';
                       }
    }
    $texversion.=&ssi_with_retries($urlp, $ssi_retry_count, %form);
    if ($urlp=~/\.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(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
      ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
       #  Don't permanently pervert the %form hash
       my %answerform = %form;
       $answerform{'grade_target'}='answer';
       $answerform{'answer_output_mode'}='tex';
       $resources_printed .= $urlp.':';
   
       &Apache::lonxml::restore_problem_counter();
       my $answer=&ssi_with_retries($urlp, $ssi_retry_count, %answerform);
                       if ($urlp =~ /\.page$/) {
                           $answer =~ s/\\end{document}(\d*)$//;
                       }
       if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
                           if ($urlp =~ /\.page$/) {
                               my @probs = split(/\\keephidden{ENDOFPROBLEM}/,$texversion);
                               my $lastprob = pop(@probs);
                               $texversion = join('\keephidden{ENDOFPROBLEM}',@probs).
                               $answer.'\keephidden{ENDOFPROBLEM}'.$lastprob;
                           } else {
                               $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
                           }
       } else {
    if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page)$/) {
       $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
   #    $texversion =~ s/\\begin{document}//; # FIXME
       my $title = &Apache::lonnet::gettitle($master_seq[$i]);
       $title = &Apache::lonxml::latex_special_symbols($title);
       my $body ='\vskip 0 mm \noindent\textbf{'.$title.'}\vskip 0 mm ';
       $body   .= &path_to_problem ($urlp,$LaTeXwidth);
       $body   .='\vskip 1 mm '.$answer;
       $body    = &encapsulate_minipage($body);
       $texversion .= $body;
    } else {
       $texversion='';
    }
       }
   
    }
    if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
       my $annotation .= &annotate($urlp);
       $texversion =~ s/(\\keephidden{ENDOFPROBLEM})/$annotation$1/;
    }
   
    if ($flag_latex_header_remove ne 'NO') {
       $texversion = &latex_header_footer_remove($texversion);
    } else {
       $texversion =~ s/\\end{document}//;
    }
    if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
       $texversion=&IndexCreation($texversion,$urlp);
    }
    if (($selectionmade == 4) and ($assignment ne $prevassignment)) {
       my $name = &get_name();
       my $courseidinfo = &get_course();
                       if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
       $prevassignment=$assignment;
       my $header_text = $parmhash{'print_header_format'};
       $header_text    = &format_page_header($textwidth, $header_text,
     $assignment, 
     $courseidinfo, 
     $name);
   
       if ($numberofcolumns eq '1') {
    $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\lhead{'.$header_text.'}} \vskip 5 mm ';
       } else {
    $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\fancyhead[LO]{'.$header_text.'}} \vskip 5 mm ';
       }
    }
    $result .= $texversion;
    $flag_latex_header_remove = 'YES';   
       } elsif ($urlp=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) { 
    $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
    if ($urlp=~/\/syllabus$/) {$urlp=~s/\/res//;}
    $resources_printed .= $urlp.':';
    my $texversion = &ssi_with_retries($urlp, $ssi_retry_count, %form);
    if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
       my $annotation = &annotate($urlp);
       $texversion =~ s/(\\end{document)/$annotation$1/;
    }
   
    if ($flag_latex_header_remove ne 'NO') {
       $texversion = &latex_header_footer_remove($texversion);
    } else {
       $texversion =~ s/\\end{document}/\\vskip 0\.5mm\\noindent\\makebox\[\\textwidth\/\$number_of_columns\]\[b\]\{\\hrulefill\}/;
    }
    $result .= $texversion;
    $flag_latex_header_remove = 'YES'; 
       } elsif ($urlp=~ /\.pdf$/i) {
    if ($i > 0) {
       $result .= '\cleardoublepage';
    }
                   my $texfrompdf = &include_pdf($urlp);
                   if ($flag_latex_header_remove ne 'NO') {
                       $texfrompdf = &latex_header_footer_remove($texfrompdf);
                   }
                   $result .= $texfrompdf;
    if ($i != $#master_seq) {
       if ($numberofcolumns eq '1') {
    $result .= '\newpage';
       } else {
    # the \\'s seem to be needed to let LaTeX know there's something
    # on the page since LaTeX seems to not like to clear an empty page.
    #
    $result .= '\\ \cleardoublepage';
       }
    }
    $flag_latex_header_remove = 'YES';
   
       } else {
    $texversion=&unsupported($urlp,$helper->{'VARS'}->{'LATEX_TYPE'},
    $master_seq[$i]);
    if ($flag_latex_header_remove ne 'NO') {
       $texversion = &latex_header_footer_remove($texversion);
    } else {
       $texversion =~ s/\\end{document}//;
    }
    $result .= $texversion;
    $flag_latex_header_remove = 'YES';   
       }
       if (&Apache::loncommon::connection_aborted($r)) { 
    last; 
       }
    }
    &Apache::lonxml::clear_problem_counter();
    if ($flag_page_in_sequence eq 'YES') {
       $result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;
    }
    $result .= '\end{document}';
        } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') ||
         ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students_from_page') ||
         ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems_students') ||
         ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students')){
   
   
        #-- prints assignments for whole class or for selected students  
    my $type;
    if (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') ||
        ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students_from_page') ||
        ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems_students') ) {
        $selectionmade=5;
        $type='problems';
    } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students') {
        $selectionmade=8;
        $type='resources';
    }
    my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
    #   The normal sort order is by section then by students within the
    #   section. If the helper var student_sort is 1, then the user has elected
    #   to override this and output the students by name.
    #    Each element of the students array is of the form:
    #       username:domain:section:last, first:status
    #    
    #  Note that student sort is not compatible with printing 
    #  1 section per pdf...so that setting overrides.
    #   
    if (($helper->{'VARS'}->{'student_sort'}    eq 1)  && 
        ($helper->{'VARS'}->{'SPLIT_PDFS'} ne "sections")) {
        @students = sort compare_names  @students;
    }
    &adjust_number_to_print($helper);
   
            if ($helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq '0' ||
        $helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq 'all' ) {
        $helper->{'VARS'}->{'NUMBER_TO_PRINT'}=$#students+1;
    }
    # If we are splitting on section boundaries, we need 
    # to remember that in split_on_sections and 
    # print all of the students in the list.
    #
    my $split_on_sections = 0;
    if ($helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq 'section') {
        $split_on_sections = 1;
        $helper->{'VARS'}->{'NUMBER_TO_PRINT'} = $#students+1;
    }
    my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
   
    #loop over students
   
     my $flag_latex_header_remove = 'NO';
    my %moreenv;
            $moreenv{'instructor_comments'}='hide';
    $moreenv{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
    $moreenv{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
    $moreenv{'print_annotations'} = $helper->{'VARS'}->{'PRINT_ANNOTATIONS'};
    $moreenv{'problem_split'}    = $parmhash{'problem_stream_switch'};
    $moreenv{'suppress_tries'}   = $parmhash{'suppress_tries'};
    if (($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes')  ||
        ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes')) {
        $moreenv{'problem_split'}='yes';
    }
    my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1,'inline','75');
    my $student_counter=-1;
    my $i = 0;
    my $last_section = (split(/:/,$students[0]))[2];
    foreach my $person (@students) {
   
                my $duefile="/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
        if (-e $duefile) {
    my $temp_file = Apache::File->new('>>'.$duefile);
    print $temp_file "1969\n";
        }
        $student_counter++;
        if ($split_on_sections) {
    my $this_section = (split(/:/,$person))[2];
    if ($this_section ne $last_section) {
        $i++;
        $last_section = $this_section;
    }
        } else {
    $i=int($student_counter/$helper->{'VARS'}{'NUMBER_TO_PRINT'});
        }
        my ($output,$fullname, $printed)=&print_resources($r,$helper,
        $person,$type,
        \%moreenv,\@master_seq,
        $flag_latex_header_remove,
        $LaTeXwidth);
        $resources_printed .= ":";
        $print_array[$i].=$output;
        $student_names[$i].=$person.':'.$fullname.'_END_';
   #     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,&mt('last student').' '.$fullname);
        &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
        $flag_latex_header_remove = 'YES';
        if (&Apache::loncommon::connection_aborted($r)) { last; }
    }
    &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
    $result .= $print_array[0].'  \end{document}';
        } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_anon')     ||
         ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_anon_page') ||
         ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_anon')  ) { 
    my $cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
    my $cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
    my $num_todo=$helper->{'VARS'}->{'NUMBER_TO_PRINT_TOTAL'};
    my $code_name=$helper->{'VARS'}->{'ANON_CODE_STORAGE_NAME'};
    my $old_name=$helper->{'VARS'}->{'REUSE_OLD_CODES'};
    my $single_code = $helper->{'VARS'}->{'SINGLE_CODE'};
    my $selected_code = $helper->{'VARS'}->{'CODE_SELECTED_FROM_LIST'};
   
    my $code_option=$helper->{'VARS'}->{'CODE_OPTION'};
            my @lines = &Apache::grades::get_scantronformat_file();
    my ($code_type,$code_length)=('letter',6);
    foreach my $line (@lines) {
        my ($name,$type,$length) = (split(/:/,$line))[0,2,4];
        if ($name eq $code_option) {
    $code_length=$length;
    if ($type eq 'number') { $code_type = 'number'; }
        }
    }
    my %moreenv = ('textwidth' => &get_textwidth($helper,$LaTeXwidth));
    $moreenv{'problem_split'}    = $parmhash{'problem_stream_switch'};
            $moreenv{'instructor_comments'}='hide';
    my $seed=time+($$<<16)+($$);
    my @allcodes;
    if ($old_name) {
        my %result=&Apache::lonnet::get('CODEs',
        [$old_name,"type\0$old_name"],
        $cdom,$cnum);
        $code_type=$result{"type\0$old_name"};
        @allcodes=split(',',$result{$old_name});
        $num_todo=scalar(@allcodes);
    } elsif ($selected_code) { # Selection value is always numeric.
        $num_todo = 1;
        @allcodes = ($selected_code);
    } elsif ($single_code) {
   
        $num_todo    = 1; # Unconditionally one code to do.
        # If an alpha code have to convert to numbers so it can be
        # converted back to letters again :-)
        #
        if ($code_type ne 'number') {
    $single_code = &letters_to_num($single_code);
        }
        @allcodes = ($single_code);
  } else {   } else {
      $ENV{'form.phase'} = 'three';       my %allcodes;
        srand($seed);
        for (my $i=0;$i<$num_todo;$i++) {
    $moreenv{'CODE'}=&get_CODE(\%allcodes,$i,$seed,$code_length,
       $code_type);
        }
        if ($code_name) {
    &Apache::lonnet::put('CODEs',
         {
    $code_name =>join(',',keys(%allcodes)),
    "type\0$code_name" => $code_type
         },
         $cdom,$cnum);
        }
        @allcodes=keys(%allcodes);
  }   }
      }   my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
 #-- additional menu for page layout (one column case)   my ($type) = split(/_/,$helper->{'VARS'}->{'PRINT_TYPE'});
     if ($ENV{'form.phase'} eq 'three') {   &adjust_number_to_print($helper);
  if($ENV{'form.numberofcolumns'} == 1) {   my $number_per_page=$helper->{'VARS'}->{'NUMBER_TO_PRINT'};
     &additional_print_menu($r);   if ($number_per_page eq '0' || $number_per_page eq 'all') {
        $number_per_page=$num_todo;
    }
    my $flag_latex_header_remove = 'NO'; 
    my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$num_todo,'inline','75');
    my $count=0;
    foreach my $code (sort(@allcodes)) {
        my $file_num=int($count/$number_per_page);
        if ($code_type eq 'number') { 
    $moreenv{'CODE'}=$code;
        } else {
    $moreenv{'CODE'}=&num_to_letters($code);
        }
        my ($output,$fullname, $printed)=
    &print_resources($r,$helper,'anonymous',$type,\%moreenv,
     \@master_seq,$flag_latex_header_remove,
     $LaTeXwidth);
        $resources_printed .= ":";
        $print_array[$file_num].=$output;
        &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
          &mt('last assignment').' '.$fullname);
        $flag_latex_header_remove = 'YES';
        $count++;
        if (&Apache::loncommon::connection_aborted($r)) { last; }
    }
    &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
    $result .= $print_array[0].'  \end{document}';
        } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {      
       #prints selected problems from the subdirectory 
    $selectionmade = 6;
           my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
    @list_of_files=sort @list_of_files;
    my $flag_latex_header_remove = 'NO'; 
    my $rndseed=time;
    if ($helper->{'VARS'}->{'curseed'}) {
       $rndseed=$helper->{'VARS'}->{'curseed'};
    }
    for (my $i=0;$i<=$#list_of_files;$i++) {
   
       &Apache::lonenc::reset_enc();
   
       my $urlp = $list_of_files[$i];
       $urlp=~s|//|/|;
       if ($urlp=~/\//) {
    $form{'problem_split'}=$parmhash{'problem_stream_switch'};
    $form{'rndseed'}=$rndseed;
    if ($urlp =~ m|/home/([^/]+)/public_html|) {
       $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
    } else {
       $urlp =~ s|^$Apache::lonnet::perlvar{'lonDocRoot'}||;
    }
    $resources_printed .= $urlp.':';
    my $texversion=&ssi_with_retries($urlp, $ssi_retry_count, %form);
    if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
      ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
       #  Don't permanently pervert %form:
       my %answerform = %form;
       $answerform{'grade_target'}='answer';
       $answerform{'answer_output_mode'}='tex';
       $answerform{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
       $answerform{'rndseed'}=$rndseed;
       $resources_printed .= $urlp.':';
       my $answer=&ssi_with_retries($urlp, $ssi_retry_count, %answerform);
       if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
    $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
       } else {
    $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
    if ($helper->{'VARS'}->{'construction'} ne '1') {
       $texversion.='\vskip 0 mm \noindent ';
       $texversion.=&path_to_problem ($urlp,$LaTeXwidth);
    } else {
       $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
       my $URLpath=$urlp;
       $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
       $texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
    }
    $texversion.='\vskip 1 mm '.$answer.'\end{document}';
       }
    }
                   #this chunk is responsible for printing the path to problem
   
    my $newurlp=$urlp;
    if ($newurlp=~/~/) {$newurlp=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;}
    $newurlp=&path_to_problem($newurlp,$LaTeXwidth);
    $texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 $newurlp/;
    if ($flag_latex_header_remove ne 'NO') {
       $texversion = &latex_header_footer_remove($texversion);
    } else {
       $texversion =~ s/\\end{document}//;
    }
    if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
       $texversion=&IndexCreation($texversion,$urlp);
    }
    if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
       $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
       
    }
    $result .= $texversion;
       }
       $flag_latex_header_remove = 'YES';  
    }
    if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\typeout)/ RANDOM SEED IS $rndseed $1/;}
    $result .= '\end{document}';      
       }
   #-------------------------------------------------------- corrections for the different page formats
   
       # Only post process if that has not been turned off e.g. by a raw latex resource.
   
       if ($do_postprocessing) {
    $result = &page_format_transformation($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'},$helper->{'VARS'}->{'TABLE_CONTENTS'},$helper->{'VARS'}->{'TABLE_INDEX'},$selectionmade);
    $result = &latex_corrections($number_of_columns,$result,$selectionmade,
        $helper->{'VARS'}->{'ANSWER_TYPE'});
    #if ($numberofcolumns == 1) {
    $result =~ s/\\textwidth\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\textwidth= $helper->{'VARS'}->{'pagesize.width'} $helper->{'VARS'}->{'pagesize.widthunit'} /;
    $result =~ s/\\textheight\s*=?\s*-?\d*\.?\d*\s*(cm|mm|in)/\\textheight $helper->{'VARS'}->{'pagesize.height'} $helper->{'VARS'}->{'pagesize.heightunit'} /;
    $result =~ s/\\evensidemargin\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\evensidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
    $result =~ s/\\oddsidemargin\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\oddsidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
    #}
       }
   
       # Set URLback if this is a construction space print so we can provide
       # a link to the resource being edited.
       #
   
       my $URLback=''; #link to original document
       if ($helper->{'VARS'}->{'construction'} eq '1') {
    #prints resource from the construction space
    $URLback='/'.$helper->{'VARS'}->{'filename'};
    if ($URLback=~/([^?]+)/) {
       $URLback=$1;
       $URLback=~s|^/~|/priv/|;
    }
       }
       #
       # Final adjustment of the font size:
       #
   
       $result = set_font_size($result);
   
   #-- writing .tex file in prtspool 
       my $temp_file;
       my $identifier = &Apache::loncommon::get_cgi_id();
       my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout_$identifier.tex";
       if (!($#print_array>0)) { 
          unless ($temp_file = Apache::File->new('>'.$filename)) {
     $r->log_error("Couldn't open $filename for output $!");
     return SERVER_ERROR; 
          }
          print $temp_file $result;
          my $begin=index($result,'\begin{document}',0);
          my $inc=substr($result,0,$begin+16); 
       } else {
          my $begin=index($result,'\begin{document}',0);
          my $inc=substr($result,0,$begin+16);
          for (my $i=0;$i<=$#print_array;$i++) {
     if ($i==0) {
         $print_array[$i]=$result;
     } else {
         $print_array[$i].='\end{document}';
         $print_array[$i] = 
    &latex_corrections($number_of_columns,$print_array[$i],
      $selectionmade, 
      $helper->{'VARS'}->{'ANSWER_TYPE'});
       
         my $anobegin=index($print_array[$i],'\setcounter{page}',0);
         substr($print_array[$i],0,$anobegin)='';
         $print_array[$i]=$inc.$print_array[$i];
     }
     my $temp_file;
     my $newfilename=$filename;
     my $num=$i+1;
     $newfilename =~s/\.tex$//; 
     $newfilename=sprintf("%s_%03d.tex",$newfilename, $num);
     unless ($temp_file = Apache::File->new('>'.$newfilename)) {
         $r->log_error("Couldn't open $newfilename for output $!");
         return SERVER_ERROR; 
     }
     print $temp_file $print_array[$i];
          }
       }
       my $student_names='';
       if ($#print_array>0) {
           for (my $i=0;$i<=$#print_array;$i++) {
      $student_names.=$student_names[$i].'_ENDPERSON_';
    }
       } else {
    if ($#student_names>-1) {
      $student_names=$student_names[0].'_ENDPERSON_';
  } else {   } else {
     $ENV{'form.phase'} = 'four';             my $fullname = &get_name($env{'user.name'},$env{'user.domain'});
      $student_names=join(':',$env{'user.name'},$env{'user.domain'},
       $env{'request.course.sec'},$fullname).
    '_ENDPERSON_'.'_END_';
    }
        }
   
        # logic for now is too complex to trace if this has been defined
        #  yet.
        my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
        my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
        &Apache::lonnet::appenv({'cgi.'.$identifier.'.file'   => $filename,
    'cgi.'.$identifier.'.layout'  => $laystyle,
    'cgi.'.$identifier.'.numcol'  => $numberofcolumns,
    'cgi.'.$identifier.'.paper'  => $papersize,
    'cgi.'.$identifier.'.selection' => $selectionmade,
    'cgi.'.$identifier.'.tableofcontents' => $helper->{'VARS'}->{'TABLE_CONTENTS'},
    'cgi.'.$identifier.'.tableofindex' => $helper->{'VARS'}->{'TABLE_INDEX'},
    'cgi.'.$identifier.'.role' => $perm{'pav'},
    'cgi.'.$identifier.'.numberoffiles' => $#print_array,
    'cgi.'.$identifier.'.studentnames' => $student_names,
    'cgi.'.$identifier.'.backref' => $URLback,});
       &Apache::lonnet::appenv({"cgi.$identifier.user"    => $env{'user.name'},
    "cgi.$identifier.domain"  => $env{'user.domain'},
    "cgi.$identifier.courseid" => $cnum, 
    "cgi.$identifier.coursedom" => $cdom, 
    "cgi.$identifier.resources" => $resources_printed});
   
       my $end_page = &Apache::loncommon::end_page();
       my $continue_text = &mt('Continue');
       # If there's been an unrecoverable SSI error, report it to the user
       if ($ssi_error) {
           my $helpurl = &Apache::loncommon::top_nav_help('Helpdesk');
           $r->print('<br /><p class="LC_error">'.&mt('An unrecoverable network error occurred:').'</p><p>'.
                     &mt('At least one of the resources you chose to print could not be rendered due to an unrecoverable error when communicating with a server:').
                     '<br />'.$ssi_last_error_resource.'<br />'.$ssi_last_error.
                     '</p><p>'.&mt('You can continue using the link provided below, but make sure to carefully inspect your output file! The errors will be marked in the file.').'<br />'.
                     &mt('You may be able to reprint the individual resources for which this error occurred, as the issue may be temporary.').
                     '<br />'.&mt('If the error persists, please contact the [_1] for assistance.',$helpurl).'</p><p>'.
                     &mt('We apologize for the inconvenience.').'</p>'.
                     '<a href="/cgi-bin/printout.pl?'.$identifier.'">'.$continue_text.'</a>'.$end_page);
       } else {
    $r->print(<<FINALEND);
   <br />
   <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$identifier" />
   <a href="/cgi-bin/printout.pl?$identifier">$continue_text</a>
   $end_page
   FINALEND
       }                                     # endif ssi errors.
   }
   
   
   sub get_CODE {
       my ($all_codes,$num,$seed,$size,$type)=@_;
       my $max='1'.'0'x$size;
       my $newcode;
       while(1) {
    $newcode=sprintf("%0".$size."d",int(rand($max)));
    if (!exists($$all_codes{$newcode})) {
       $$all_codes{$newcode}=1;
       if ($type eq 'number' ) {
    return $newcode;
       } else {
    return &num_to_letters($newcode);
       }
  }   }
     }      }
 #-- core part   }
     if ($ENV{'form.phase'} eq 'four') {  
  &output_data($r);  sub print_resources {
     }      my ($r,$helper,$person,$type,$moreenv,$master_seq,$remove_latex_header,
     untie %hash;   $LaTeXwidth)=@_;
     return OK;      my $current_output = ''; 
       my $printed = '';
       my ($username,$userdomain,$usersection) = split /:/,$person;
       my $fullname = &get_name($username,$userdomain);
       my $namepostfix = "\\\\"; # Both anon and not anon should get the same vspace.
       if ($person =~ 'anon') {
    $namepostfix .="Name: ";
    $fullname = "CODE - ".$moreenv->{'CODE'};
       }
       #  Fullname may have special latex characters that need \ prefixing:
       #
   
       my $i           = 0;
       #goes through all resources, checks if they are available for 
       #current student, and produces output   
   
       &Apache::lonxml::clear_problem_counter();
       my %page_breaks  = &get_page_breaks($helper);
       my $columns_in_format = (split(/\|/,$helper->{'VARS'}->{'FORMAT'}))[1];
       #
       #   end each student with a 
       #   Special that allows the post processor to even out the page
       #   counts later.  Nasty problem this... it would be really
       #   nice to put the special in as a postscript comment
       #   e.g. \special{ps:\ENDOFSTUDENTSTAMP}  unfortunately,
       #   The special gets passed the \ and dvips puts it in the output file
       #   so we will just rely on prntout.pl to strip  ENDOFSTUDENTSTAMP from the
       #   postscript.  Each ENDOFSTUDENTSTAMP will go on a line by itself.
       #
       my $syllabus_first = 0;
       foreach my $curresline (@{$master_seq})  {
    if (defined $page_breaks{$curresline}) {
       if($i != 0) {
    $current_output.= "\\newpage\n";
       }
    }
    $current_output .= &get_extra_vspaces($helper, $curresline);
    $i++;
   
    if ( !($type eq 'problems' && 
          ($curresline!~ m/\.(problem|exam|quiz|assess|survey|form|library|page)$/)) ) {
       my ($map,$id,$res_url) = &Apache::lonnet::decode_symb($curresline);
       if (&Apache::lonnet::allowed('bre',$res_url)) {
    if ($res_url!~m|^ext/|
       && $res_url=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
       $printed .= $curresline.':';
       &Apache::lonxml::remember_problem_counter();    
   
       my $rendered = &get_student_view_with_retries($curresline,$ssi_retry_count,$username,$userdomain,$env{'request.course.id'},'tex',$moreenv);
                       if ($res_url =~ /\.page$/) {
                           if ($remove_latex_header eq 'NO') {
                               if (!($rendered =~ /\\begin\{document\}/)) {
                                   $rendered = &print_latex_header().$rendered;
                               }
                           }
                           if ($remove_latex_header eq 'YES') {
                               $rendered = &latex_header_footer_remove($rendered);
                           } else {
                               $rendered =~ s/\\end{document}\d*//;
                           }
                       }
       if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
          ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
    #   Use a copy of the hash so we don't pervert it on future loop passes.
    my %answerenv = %{$moreenv};
    $answerenv{'answer_output_mode'}='tex';
    $answerenv{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
   
    &Apache::lonxml::restore_problem_counter();
   
    my $ansrendered = &Apache::loncommon::get_student_answers($curresline,$username,$userdomain,$env{'request.course.id'},%answerenv);
   
    if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
       $rendered=~s/(\\keephidden{ENDOFPROBLEM})/$ansrendered$1/;
    } else {
   
       
       my $header =&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
                               unless ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only') {
                                   $header =~ s/\\begin{document}//;     #<<<<<
                               }
       my $title = &Apache::lonnet::gettitle($curresline);
       $title = &Apache::lonxml::latex_special_symbols($title);
       my $body   ='\vskip 0 mm \noindent\textbf{'.$title.'}\vskip 0 mm ';
       $body     .=&path_to_problem($res_url,$LaTeXwidth);
       $body     .='\vskip 1 mm '.$ansrendered;
       $body     = &encapsulate_minipage($body);
       $rendered = $header.$body;
    }
       }
       if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
    my $url = &Apache::lonnet::clutter($res_url);
    my $annotation = &annotate($url);
    $rendered =~  s/(\\keephidden{ENDOFPROBLEM})/$annotation$1/;
       }
       my $junk;
       if ($remove_latex_header eq 'YES') {
    $rendered = &latex_header_footer_remove($rendered);
       } else {
    $rendered =~ s/\\end{document}//;
       }
       $current_output .= $rendered;    
    } elsif ($res_url=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
       if ($i == 1) {
    $syllabus_first = 1;
       }
       $printed .= $curresline.':';
       my $rendered = &get_student_view_with_retries($curresline,$ssi_retry_count,$username,$userdomain,$env{'request.course.id'},'tex',$moreenv);
       if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
    my $url = &Apache::lonnet::clutter($res_url);
    my $annotation = &annotate($url);
    $annotation    =~ s/(\\end{document})/$annotation$1/;
       }
       if ($remove_latex_header eq 'YES') {
    $rendered = &latex_header_footer_remove($rendered);
       } else {
    $rendered =~ s/\\end{document}//;
       }
       $current_output .= $rendered.'\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\strut \vskip 0 mm \strut ';
    } elsif($res_url = ~/\.pdf$/) {
       my $url = &Apache::lonnet::clutter($res_url);
       my $rendered  = &include_pdf($url);
       if ($remove_latex_header ne 'NO') {
    $rendered = &latex_header_footer_remove($rendered);
       }
       $current_output .= $rendered;
    } else {
       my $rendered = &unsupported($res_url,$helper->{'VARS'}->{'LATEX_TYPE'},$curresline);
       if ($remove_latex_header ne 'NO') {
    $rendered = &latex_header_footer_remove($rendered);
       } else {
    $rendered =~ s/\\end{document}//;
       }
       $current_output .= $rendered;
    }
       }
       $remove_latex_header = 'YES';
    } 
    if (&Apache::loncommon::connection_aborted($r)) { last; }
       }
   
       if ($syllabus_first) {
           $current_output =~ s/\\\\ Last updated:/Last updated:/
       }
       my $courseidinfo = &get_course();
       if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
       if ($usersection ne '') {$courseidinfo.=' - Sec. '.$usersection}
       my $currentassignment=&Apache::lonxml::latex_special_symbols($helper->{VARS}->{'assignment'},'header');
       my $header_line =
    &format_page_header($LaTeXwidth, $parmhash{'print_header_format'},
       $currentassignment, $courseidinfo, $fullname);
       my $header_start = ($columns_in_format == 1) ? '\lhead'
                                            : '\fancyhead[LO]';
       $header_line = $header_start.'{'.$header_line.'}';
       if ($current_output=~/\\documentclass/) {
    $current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\parbox{\\minipagewidth}{\\noindent$header_line$namepostfix}\\vskip 5 mm /;
       } else {
    my $blankpages = 
       '\clearpage\strut\clearpage'x$helper->{'VARS'}->{'EMPTY_PAGES'};
       
    $current_output = '\strut\vspace*{-6 mm}\\newline'.
       &copyright_line().' \newpage '.$blankpages.$end_of_student.
       '\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent'.
       $header_line.$namepostfix.'} \vskip 5 mm '.$current_output;
       }
       #
       #  Close the student bracketing.
       #
       return ($current_output,$fullname, $printed);
   
   }
   
   sub handler {
   
       my $r = shift;
       
       &init_perm();
   
   
   
       my $helper = printHelper($r);
       if (!ref($helper)) {
    return $helper;
       }
         
   
       %parmhash=&Apache::lonnet::coursedescription($env{'request.course.id'});
    
   
   
   
       #  If a figure conversion queue file exists for this user.domain
       # we delete it since it can only be bad (if it were good, printout.pl
       # would have deleted it the last time around.
   
       my $conversion_queuefile = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
       if(-e $conversion_queuefile) {
    unlink $conversion_queuefile;
       }
       
   
       &output_data($r,$helper,\%parmhash);
       return OK;
 }   } 
   
 use Apache::lonhelper;  use Apache::lonhelper;
   
 sub printHelper {  sub addMessage {
     my $r = shift;      my $text = shift;
       my $paramHash = Apache::lonhelper::getParamHash();
       $paramHash->{MESSAGE_TEXT} = $text;
       Apache::lonhelper::message->new();
   }
   
   
     if ($ENV{'request.course.id'}) {  
  my $fn=$ENV{'request.course.fn'};  sub init_perm {
  tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);      undef(%perm);
       $perm{'pav'}=&Apache::lonnet::allowed('pav',$env{'request.course.id'});
       if (!$perm{'pav'}) {
    $perm{'pav'}=&Apache::lonnet::allowed('pav',
     $env{'request.course.id'}.'/'.$env{'request.course.sec'});
       }
       $perm{'pfo'}=&Apache::lonnet::allowed('pfo',$env{'request.course.id'});
       if (!$perm{'pfo'}) {
    $perm{'pfo'}=&Apache::lonnet::allowed('pfo',
     $env{'request.course.id'}.'/'.$env{'request.course.sec'});
     }      }
   }
   
   sub get_randomly_ordered_warning {
       my ($helper,$map) = @_;
   
       my $message;
   
       my $postdata = $env{'form.postdata'} || $helper->{VARS}{'postdata'};
       my $navmap = Apache::lonnavmaps::navmap->new();
       if (defined($navmap)) {
           my $res = $navmap->getResourceByUrl($map);
           if ($res) {
       my $func = 
           sub { return ($_[0]->is_map() && $_[0]->randomorder); };
       my @matches = $navmap->retrieveResources($res, $func,1,1,1);
       if (@matches) {
           $message = "Some of the items below are in folders set to be randomly ordered. However, when printing the contents of these folders, they will be printed in the original order for all students, not the randomized order.";
       }
           }
           if ($message) {
       return '<message type="warning">'.$message.'</message>';
           }
       } else {
           $message = "Retrieval of information about ordering of resources failed."; 
           return '<message type="warning">'.$message.'</message>';
       }
       return;
   }
   
   sub printHelper {
       my $r = shift;
   
     if ($r->header_only) {      if ($r->header_only) {
         if ($ENV{'browser.mathml'}) {          if ($env{'browser.mathml'}) {
             $r->content_type('text/xml');              &Apache::loncommon::content_type($r,'text/xml');
         } else {          } else {
             $r->content_type('text/html');              &Apache::loncommon::content_type($r,'text/html');
         }          }
         $r->send_http_header;          $r->send_http_header;
         return OK;          return OK;
     }      }
   
     # Send header, nocache      # Send header, nocache
     if ($ENV{'browser.mathml'}) {      if ($env{'browser.mathml'}) {
         $r->content_type('text/xml');          &Apache::loncommon::content_type($r,'text/xml');
     } else {      } else {
         $r->content_type('text/html');          &Apache::loncommon::content_type($r,'text/html');
     }      }
     &Apache::loncommon::no_cache($r);      &Apache::loncommon::no_cache($r);
     $r->send_http_header;      $r->send_http_header;
Line 1320  sub printHelper { Line 3200  sub printHelper {
   
     Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});      Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
           
     my $helper = Apache::lonhelper::helper->new("Printing Wizard");      my $helper = Apache::lonhelper::helper->new("Printing Helper");
       $helper->declareVar('symb');
       $helper->declareVar('postdata');    
       $helper->declareVar('curseed'); 
       $helper->declareVar('probstatus');   
       $helper->declareVar('filename');
       $helper->declareVar('construction');
       $helper->declareVar('assignment');
       $helper->declareVar('style_file');
       $helper->declareVar('student_sort');
       $helper->declareVar('FINISHPAGE');
       $helper->declareVar('PRINT_TYPE');
       $helper->declareVar("showallfoils");
       $helper->declareVar("STUDENTS");
       $helper->declareVar("EXTRASPACE");
   
      
   
   
       #  The page breaks and extra spaces
       #  can get loaded initially from the course environment:
       # But we only do this in the initial state so that they are allowed to change.
       #
   
       
       &Apache::loncommon::restore_course_settings('print',
    {'pagebreaks'  => 'scalar',
    'extraspace'  => 'scalar',
    'extraspace_units' => 'scalar',
            'lastprinttype' => 'scalar'});
           
     # This will persistently load in the data we want from the      # This will persistently load in the data we want from the
     # very first screen.      # very first screen.
     if (defined($ENV{'form.symb'})) {      
         $helper->{VARS}->{'symb'} = $ENV{'form.symb'};      if($helper->{VARS}->{PRINT_TYPE} eq $env{'form.lastprinttype'}) {
     }   if (!defined ($env{"form.CURRENT_STATE"})) {
     if (defined($ENV{'form.postdata'})) {      
         $helper->{VARS}->{'postdata'} = $ENV{'form.postdata'};      $helper->{VARS}->{FINISHPAGE} = $env{'form.pagebreaks'};
       $helper->{VARS}->{EXTRASPACE} = $env{'form.extraspace'};
       $helper->{VARS}->{EXTRASPACE_UNITS} = $env{'form.extraspace_units'};
    } else {
       my $state = $env{"form.CURRENT_STATE"};
       if ($state eq "START") {
    $helper->{VARS}->{FINISHPAGE} = $env{'form.pagebreaks'};
    $helper->{VARS}->{EXTRASPACE} = $env{'form.extraspace'};
    $helper->{VARS}->{EXTRASPACE_UNITS} = $env{'form.extraspace_units'};
   
       }
    }
   
     }      }
     if (defined($ENV{'form.url'})) {  
         $helper->{VARS}->{'url'} = $ENV{'form.url'};      # Detect whether we're coming from construction space
       if ($env{'form.postdata'}=~/^(?:http:\/\/[^\/]+\/|\/|)\~([^\/]+)\/(.*)$/) {
           $helper->{VARS}->{'filename'} = "~$1/$2";
           $helper->{VARS}->{'construction'} = 1;
       } else {
           if ($env{'form.postdata'}) {
               $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($env{'form.postdata'});
       if ( $helper->{VARS}->{'symb'} eq '') {
    $helper->{VARS}->{'postdata'} = $env{'form.postdata'};
       }
           }
           if ($env{'form.symb'}) {
               $helper->{VARS}->{'symb'} = $env{'form.symb'};
           }
           if ($env{'form.url'}) {
               $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
           }
   
     }      }
   
     my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu;      if ($env{'form.symb'}) {
     if (!$resourceTitle) { # if the resource doesn't have a title, use the filename          $helper->{VARS}->{'symb'} = $env{'form.symb'};
         my $url = $helper->{VARS}->{'postdata'};  
         $resourceTitle = substr($url, rindex($url, '/') + 1);  
     }      }
       if ($env{'form.url'}) {
           $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
   
     Apache::lonhelper::registerHelperTags();      }
       $helper->{VARS}->{'symb'}=
    &Apache::lonenc::check_encrypt($helper->{VARS}->{'symb'});
       my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu($helper);
       if ($sequenceTitle ne '') {$helper->{VARS}->{'assignment'}=$sequenceTitle;}
   
       
     # Extract map      # Extract map
     my $symb = $helper->{VARS}->{'symb'};      my $symb = $helper->{VARS}->{'symb'};
     my ($map, $id, $url) = split(/__/, $symb);      my ($map, $id, $url);
       my $subdir;
       my $is_published=0; # True when printing from resource space.
   
       # Get the resource name from construction space
       if ($helper->{VARS}->{'construction'}) {
           $resourceTitle = substr($helper->{VARS}->{'filename'}, 
                                   rindex($helper->{VARS}->{'filename'}, '/')+1);
           $subdir = substr($helper->{VARS}->{'filename'},
                            0, rindex($helper->{VARS}->{'filename'}, '/') + 1);
       } else {
    # From course space:
   
     my $subdir = &Apache::lonnet::filelocation("", $helper->{VARS}->{'postdata'});   if ($symb ne '') {
       ($map, $id, $url) = &Apache::lonnet::decode_symb($symb);
       $helper->{VARS}->{'postdata'} = 
    &Apache::lonenc::check_encrypt(&Apache::lonnet::clutter($url));
    } else {
       $url = $helper->{VARS}->{'postdata'};
       $is_published=1; # From resource space.
    }
    $url = &Apache::lonnet::clutter($url);
           if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
               my $postdata = $helper->{VARS}->{'postdata'};
               $resourceTitle = substr($postdata, rindex($postdata, '/') + 1);
           }
           $subdir = &Apache::lonnet::filelocation("", $url);
       }
       if (!$helper->{VARS}->{'curseed'} && $env{'form.curseed'}) {
    $helper->{VARS}->{'curseed'}=$env{'form.curseed'};
       }
       if (!$helper->{VARS}->{'probstatus'} && $env{'form.problemtype'}) {
    $helper->{VARS}->{'probstatus'}=$env{'form.problemstatus'};
       }
   
       my $userCanSeeHidden = Apache::lonnavmaps::advancedUser();
   
       Apache::lonhelper::registerHelperTags();
   
     # "Delete everything after the last slash."      # "Delete everything after the last slash."
     $subdir =~ s|/[^/]+$||;      $subdir =~ s|/[^/]+$||;
Line 1364  sub printHelper { Line 3342  sub printHelper {
     # the helper by hand.      # the helper by hand.
     my $printChoices = [];      my $printChoices = [];
     my $paramHash;      my $paramHash;
     # We can always print the current screen.  
   
     push @{$printChoices}, ["<b>$resourceTitle</b> (exactly what was on the screen)", 'current_document', 'FINAL'];      if ($resourceTitle) {
           push @{$printChoices}, ["<b><i>$resourceTitle</i></b> (".&mt('the resource you just saw on the screen').")", 'current_document', 'PAGESIZE'];
       }
   
       # Useful filter strings
       my $isProblem = '($res->is_problem()||$res->contains_problem||$res->is_practice()) ';
       $isProblem .= ' && !$res->randomout()' if !$userCanSeeHidden;
       my $isProblemOrMap = '$res->is_problem() || $res->contains_problem() || $res->is_sequence() || $res->is_practice()';
       my $isNotMap = '!$res->is_sequence()';
       $isNotMap .= ' && !$res->randomout()' if !$userCanSeeHidden;
       my $isMap = '$res->is_map()';
       my $symbFilter = '$res->shown_symb()';
       my $urlValue = '$res->link()';
   
       $helper->declareVar('SEQUENCE');
   
     # If we're in a sequence...      # If we're in a sequence...
     if ($helper->{VARS}->{'postdata'} =~ /\/res\//) {  
       my $start_new_option;
       if ($perm{'pav'}) {
    $start_new_option = 
       "<option text='".&mt('Start new page<br />before selected').
       "' variable='FINISHPAGE' />".
       "<option text='".&mt('Extra space<br />before selected').
       "' variable='EXTRASPACE' type='text' />" .
       "<option " .
       "' variable='POSSIBLE_RESOURCES' type='hidden' />".
       "<option text='".&mt('Space units<br />check for mm').
       "' variable='EXTRASPACE_UNITS' type='checkbox' />"
       ;
       
   
       }
   
       # If not construction space user can print the components of a page:
   
       my $page_ispage;
       my $page_title;
       if (!$helper->{VARS}->{'construction'}) {
    my $varspostdata = $helper->{VARS}->{'postdata'};
    my $varsassignment = $helper->{VARS}->{'assignment'};
    my $page_navmap         = Apache::lonnavmaps::navmap->new();
    if (defined($page_navmap)) {
       my @page_resources      = $page_navmap->retrieveResources($url);
       if(defined($page_resources[0])) {
    $page_ispage       = $page_resources[0]->is_page();
    $page_title     = $page_resources[0]->title();
    my $resourcesymb   = $page_resources[0]->symb();
    my ($pagemap, $pageid, $pageurl) = &Apache::lonnet::decode_symb($symb);
    if ($page_ispage) {
       push @{$printChoices}, 
       [&mt('Selected [_1]Problems[_2] from page [_3]', '<b>', '</b>', '<b><i>'.$page_title.'</i></b>'), 
        'map_problems_in_page', 
        'CHOOSE_PROBLEMS_PAGE'];
       push @{$printChoices}, 
       [&mt('Selected [_1]Resources[_2] from page [_3]', '<b>', '</b>', '<b><i>'.$page_title.'</i></b>'), 
        'map_resources_in_page', 
        'CHOOSE_RESOURCES_PAGE'];
    }
           my $helperFragment = &generate_resource_chooser('CHOOSE_PROBLEMS_PAGE',
    'Select Problem(s) to print',
    "multichoice='1' toponly='1' addstatus='1' closeallpages='1'",
    'RESOURCES',
    'PAGESIZE',
    $url,
    $isProblem, '',  $symbFilter,
    $start_new_option);
   
   
         $helperFragment .= &generate_resource_chooser('CHOOSE_RESOURCES_PAGE',
       'Select Resource(s) to print',
       'multichoice="1" toponly="1" addstatus="1" closeallpages="1"',
       'RESOURCES',
       'PAGESIZE',
       $url,
       $isNotMap, '', $symbFilter,
       $start_new_option);
   
       
   
   
   
    &Apache::lonxml::xmlparse($r, 'helper', $helperFragment);
   
       }
    }
       }
   
       if (($helper->{'VAR'}->{'construction'} ne '1' ) &&
    $helper->{VARS}->{'postdata'} &&
    $helper->{VARS}->{'assignment'}) {
         # Allow problems from sequence          # Allow problems from sequence
         push @{$printChoices}, ["Problems from <b>$sequenceTitle</b>", 'map_problems', 'CHOOSE_PROBLEMS'];          push @{$printChoices}, 
       [&mt('Selected [_1]Problems[_2] from folder [_3]','<b>','</b>','<b><i>'.$sequenceTitle.'</i></b>'), 
        'map_problems', 
        'CHOOSE_PROBLEMS'];
         # Allow all resources from sequence          # Allow all resources from sequence
         push @{$printChoices}, ["Problems and pages from <b>$sequenceTitle</b>", 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];          push @{$printChoices}, [&mt('Selected [_1]Resources[_2] from folder [_3]','<b>','</b>','<b><i>'.$sequenceTitle.'</i></b>'), 
    'map_problems_pages', 
    'CHOOSE_PROBLEMS_HTML'];
           my $helperFragment = &generate_resource_chooser('CHOOSE_PROBLEMS',
    'Select Problem(s) to print',
    'multichoice="1" toponly="1" addstatus="1" closeallpages="1"',
    'RESOURCES',
    'PAGESIZE',
    $map,
    $isProblem, '',
    $symbFilter,
    $start_new_option);
    $helperFragment .= &generate_resource_chooser('CHOOSE_PROBLEMS_HTML',
         'Select Resource(s) to print',
          'multichoice="1" toponly="1" addstatus="1" closeallpages="1"',
         'RESOURCES',
         'PAGESIZE',
         $map,
         $isNotMap, '',
         $symbFilter,
         $start_new_option);
   
    &Apache::lonxml::xmlparse($r, 'helper', $helperFragment);
       }
   
       # If the user has pfo (print for others) allow them to print all 
       # problems and resources  in the entire course, optionally for selected students
       my $post_data = $helper->{VARS}->{'postdata'};
       if ($perm{'pfo'} &&  !$is_published  &&
           ($post_data=~/\/res\// || $post_data =~/\/(syllabus|smppg|aboutme|bulletinboard)$/)) { 
   
           push @{$printChoices}, [&mtn('Selected <b>Problems</b> from <b>entire course</b>'), 'all_problems', 'ALL_PROBLEMS'];
    push @{$printChoices}, [&mtn('Selected <b>Resources</b> from <b>entire course</b>'), 'all_resources', 'ALL_RESOURCES'];
    push @{$printChoices}, [&mtn('Selected <b>Problems</b> from <b>entire course</b> for <b>selected people</b>'), 'all_problems_students', 'ALL_PROBLEMS_STUDENTS'];
   my $suffixXml = <<ALL_PROBLEMS;
     <state name="STUDENTS1" title="Select People">
         <message><b>Select sorting order of printout</b> </message>
       <choices variable='student_sort'>
         <choice computer='0'>Sort by section then student</choice>
         <choice computer='1'>Sort by students across sections.</choice>
       </choices>
         <message><br /><hr /><br /> </message>
         <student multichoice='1' variable="STUDENTS" nextstate="PRINT_FORMATTING" coursepersonnel="1"/>
     </state>
   ALL_PROBLEMS
            &Apache::lonxml::xmlparse($r, 'helper', 
      &generate_resource_chooser('ALL_PROBLEMS',
         'SelectProblem(s) to print',
         'multichoice="1" suppressEmptySequences="0" addstatus="1" closeallpages="1"',
         'RESOURCES',
         'PAGESIZE',
         '',
         $isProblemOrMap, $isNotMap,
         $symbFilter,
         $start_new_option) .
      &generate_resource_chooser('ALL_RESOURCES',
         'Select Resource(s) to print',
         " toponly='0' multichoice='1' suppressEmptySequences='0' addstatus='1' closeallpages='1'",
         'RESOURCES',
         'PAGESIZE',
         '',
         $isNotMap,'',$symbFilter,
         $start_new_option) .
      &generate_resource_chooser('ALL_PROBLEMS_STUDENTS',
         'Select Problem(s) to print',
         'toponly="0" multichoice="1" suppressEmptySequences="0" addstatus="1" closeallpages="1"',
         'RESOURCES',
         'STUDENTS1',
         '',
         $isProblemOrMap,'' , $symbFilter,
         $start_new_option) .
        $suffixXml
      );
   
    if ($helper->{VARS}->{'assignment'}) {
   
       # If we were looking at a page, allow a selection of problems from the page
       # either for selected students or for coded assignments.
   
       if ($page_ispage) {
    push @{$printChoices}, [&mt('Selected [_1]Problems[_2] from page [_3] for [_4]selected people[_5]',
       '<b>', '</b>', '<b><i>'.$page_title.'</i></b>', '<b>', '</b>'),
    'problems_for_students_from_page', 'CHOOSE_TGT_STUDENTS_PAGE'];
    push @{$printChoices}, [&mt('Selected [_1]Problems[_2] from page [_3] for [_4]CODEd assignments[_5]',
       '<b>', '</b>', '<b><i>'.$page_title.'</i></b>', '<b>', '</b>'),
    'problems_for_anon_page', 'CHOOSE_ANON1_PAGE'];
       }
       push @{$printChoices}, [&mt('Selected [_1]Problems[_2] from folder [_3] for [_4]selected people[_5]',
    '<b>','</b>','<b><i>'.$sequenceTitle.'</i></b>','<b>','</b>'), 
       'problems_for_students', 'CHOOSE_STUDENTS'];
       push @{$printChoices}, [&mt('Selected [_1]Problems[_2] from folder [_3] for [_4]CODEd assignments[_5]',
    '<b>','</b>','<b><i>'.$sequenceTitle.'</i></b>','<b>','</b>'), 
       'problems_for_anon', 'CHOOSE_ANON1'];
    }
   
         my $isProblem = '$res->is_problem();';   my $randomly_ordered_warning = 
         my $isProblemOrMap = '$res->is_problem() || $res->is_map()';      &get_randomly_ordered_warning($helper,$map);
         my $isNotMap = '!$res->is_map();';  
         my $helperFragment = <<HELPERFRAGMENT;   # resource_selector will hold a few states that:
   <state name="CHOOSE_PROBLEMS" title="Select Problems">   #   - Allow resources to be selected for printing.
     <message>Select problems to print:</message>   #   - Determine pagination between assignments.
     <resource variable="RESOURCES" multichoice="1">   #   - Determine how many assignments should be bundled into a single PDF.
       <nextstate>FINAL</nextstate>          # TODO:
       <filterfunc>return $isProblemOrMap</filterfunc>   #    Probably good to do things like separate this up into several vars, each
       <choicefunc>return $isProblem</choicefunc>   #    with one state, and use REGEXPs at inclusion time to set state names
       <mapurl>$map</mapurl>   #    and next states for better mix and match capability
       </resource>   #
    my $resource_selector= &generate_resource_chooser('SELECT_PROBLEMS',
     'Select resources to print',
     'multichoice="1" addstatus="1" closeallpages="1"',
     'RESOURCES', 
     'PRINT_FORMATTING',
     $map,
     $isProblem, '', $symbFilter,
     $start_new_option);
    $resource_selector .=  <<RESOURCE_SELECTOR;
       <state name="PRINT_FORMATTING" title="How should results be printed?">
       <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
       <choices variable="EMPTY_PAGES">
         <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
         <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
         <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
         <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
       </choices>
       <nextstate>PAGESIZE</nextstate>
       <message><hr width='33%' /><b>How do you want assignments split into PDF files? </b></message>
       <choices variable="SPLIT_PDFS">
          <choice computer="all">All assignments in a single PDF file</choice>
          <choice computer="sections">Each PDF contains exactly one section</choice>
          <choice computer="oneper">Each PDF contains exactly one assignment</choice>
          <choice computer="usenumber" relatedvalue="NUMBER_TO_PRINT">
               Specify the number of assignments per PDF:</choice>
       </choices>
     </state>      </state>
   RESOURCE_SELECTOR
           $resource_selector .= &generate_resource_chooser('CHOOSE_STUDENTS_PAGE',
    'Select Problem(s) to print',
    "multichoice='1' addstatus='1' closeallpages ='1'",
    'RESOURCES',
    'PRINT_FORMATTING',
    $url,
    $isProblem, '',  $symbFilter,
    $start_new_option);
   
   
   # Generate student choosers.
   
   
   
           &Apache::lonxml::xmlparse($r, 'helper',
     &generate_student_chooser('CHOOSE_TGT_STUDENTS_PAGE',
       'student_sort',
       'STUDENTS',
       'CHOOSE_STUDENTS_PAGE'));
    &Apache::lonxml::xmlparse($r, 'helper', 
     &generate_student_chooser('CHOOSE_STUDENTS',
       'student_sort',
       'STUDENTS',
       'SELECT_PROBLEMS'));
    &Apache::lonxml::xmlparse($r, 'helper', $resource_selector);
   
    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
           my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
    my $namechoice='<choice></choice>';
    foreach my $name (sort {uc($a) cmp uc($b)} @names) {
       if ($name =~ /^error: 2 /) { next; }
       if ($name =~ /^type\0/) { next; }
       $namechoice.='<choice computer="'.$name.'">'.$name.'</choice>';
    }
   
   
   <state name="CHOOSE_PROBLEMS_HTML" title="Select Resources">   my %code_values;
     <message>Select resources to print:</message>   my %codes_to_print;
     <resource variable="RESOURCES" multichoice="1">   foreach my $key (@names) {
       <nextstate>FINAL</nextstate>      %code_values = &Apache::grades::get_codes($key, $cdom, $cnum);
       <choicefunc>return $isNotMap;</choicefunc>      foreach my $key (keys(%code_values)) {
    $codes_to_print{$key} = 1;
       }
    }
   
    my $code_selection;
    foreach my $code (sort {uc($a) cmp uc($b)} (keys(%codes_to_print))) {
       my $choice  = $code;
       if ($code =~ /^[A-Z]+$/) { # Alpha code
    $choice = &letters_to_num($code);
       }
       push(@{$helper->{DATA}{ALL_CODE_CHOICES}},[$code,$choice]);
    }
    if (%codes_to_print) {
       $code_selection .='   
       <message><b>Choose single CODE from list:</b></message>
    <message></td><td></message>
    <dropdown variable="CODE_SELECTED_FROM_LIST" multichoice="0" allowempty="0">
                     <choice></choice>
                     <exec>
                        push(@{$state->{CHOICES}},@{$helper->{DATA}{ALL_CODE_CHOICES}});
                     </exec>
    </dropdown>
       <message></td></tr><tr><td></message>
               '.$/;
   
    }
   
           my @lines = &Apache::grades::get_scantronformat_file();
    my $codechoice='';
    foreach my $line (@lines) {
       my ($name,$description,$code_type,$code_length)=
    (split(/:/,$line))[0,1,2,4];
       if ($code_length > 0 && 
    $code_type =~/^(letter|number|-1)/) {
    $codechoice.='<choice computer="'.$name.'">'.$description.'</choice>';
       }
    }
    if ($codechoice eq '') {
       $codechoice='<choice computer="default">Default</choice>';
    }
    my $anon1 = &generate_code_selector($helper, 
       'CHOOSE_ANON1',
       'SELECT_PROBLEMS',
       $codechoice,
       $code_selection,
       $namechoice) . $resource_selector;
       
       
           &Apache::lonxml::xmlparse($r, 'helper',$anon1);
   
    my $anon_page = &generate_code_selector($helper,
    'CHOOSE_ANON1_PAGE',
    'SELECT_PROBLEMS_PAGE',
    $codechoice,
    $code_selection,
    $namechoice) .
    &generate_resource_chooser('SELECT_PROBLEMS_PAGE',
      'Select Problem(s) to print',
      "multichoice='1' addstatus='1' closeallpages ='1'",
      'RESOURCES',
      'PRINT_FORMATTING',
      $url,
      $isProblem, '',  $symbFilter,
      $start_new_option);
    &Apache::lonxml::xmlparse($r, 'helper', $anon_page);
   
   
    if ($helper->{VARS}->{'assignment'}) {
       push @{$printChoices}, [&mt('Selected [_1]Resources[_2] from folder [_3] for [_4]selected people[_5]','<b>','</b>','<b><i>'.$sequenceTitle.'</i></b>','<b>','</b>'), 'resources_for_students', 'CHOOSE_STUDENTS1'];
       push @{$printChoices}, [&mt('Selected [_1]Resources[_2] from folder [_3] for [_4]CODEd assignments[_5]','<b>','</b>','<b><i>'.$sequenceTitle.'</i></b>','<b>','</b>'), 'resources_for_anon', 'CHOOSE_ANON2'];
    }
       
   
    $resource_selector=<<RESOURCE_SELECTOR;
       <state name="SELECT_RESOURCES" title="Select Resources">
       $randomly_ordered_warning
       <nextstate>PRINT_FORMATTING</nextstate>
       <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
       <resource variable="RESOURCES" multichoice="1" addstatus="1" 
                 closeallpages="1">
         <filterfunc>return $isNotMap;</filterfunc>
       <mapurl>$map</mapurl>        <mapurl>$map</mapurl>
         <valuefunc>return $symbFilter;</valuefunc>
         $start_new_option
       </resource>        </resource>
     </state>      </state>
 HELPERFRAGMENT  
   
         &Apache::lonxml::xmlparse($r, 'helper', $helperFragment);       <state name="PRINT_FORMATTING" title="Format of the print job">
     }      <nextstate>NUMBER_PER_PDF</nextstate>
       <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
       <choices variable="EMPTY_PAGES">
         <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
         <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
         <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
         <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
       </choices>
       <nextstate>PAGESIZE</nextstate>
       <message><hr width='33%' /><b>How do you want assignments split into PDF files? </b></message>
       <choices variable="SPLIT_PDFS">
          <choice computer="all">All assignments in a single PDF file</choice>
          <choice computer="sections">Each PDF contains exactly one section</choice>
          <choice computer="oneper">Each PDF contains exactly one assignment</choice>
          <choice computer="usenumber" relatedvalue="NUMBER_TO_PRINT">
              Specify the number of assignments per PDF:</choice>
       </choices>
       </state>
   RESOURCE_SELECTOR
   
     # If the user is priviledged, allow them to print all    &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS1);
     # problems in the course, optionally for selected students    <state name="CHOOSE_STUDENTS1" title="Select Students and Resources">
     if (($ENV{'request.role'}=~m/^cc\./ or $ENV{'request.role'}=~m/^in\./ or $ENV{'request.role'}=~m/^ta\./) and ($helper->{VARS}->{'postdata'}=~/\/res\//)) {       <choices variable='student_sort'>
         push @{$printChoices}, ['<b>All problems</b> in course (may take a lot of time)', 'all_problems', 'FINAL'];        <choice computer='0'>Sort by section then student</choice>
         push @{$printChoices}, ["Problems from <b>$sequenceTitle</b> for selected students", 'problems_for_students', 'CHOOSE_STUDENTS'];        <choice computer='1'>Sort by students across sections.</choice>
       </choices>
       <message><br /><hr /><br /></message>
       <student multichoice='1' variable="STUDENTS" nextstate="SELECT_RESOURCES" coursepersonnel="1" />
   
         &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);  
   <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>      </state>
 CHOOSE_STUDENTS      $resource_selector
   CHOOSE_STUDENTS1
   
    &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON2);
     <state name="CHOOSE_ANON2" title="Select CODEd Assignments">
       <nextstate>SELECT_RESOURCES</nextstate>
       <message><h4>Fill out one of the forms below</h4></message>
       <message><br /><hr /> <br /></message>
       <message><h3>Generate new CODEd Assignments</h3></message>
       <message><table><tr><td><b>Number of CODEd assignments to print:</b></td><td></message>
       <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5"  noproceed="1">
          <validator>
    if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) < 1) &&
       !\$helper->{'VARS'}{'REUSE_OLD_CODES'}                &&
       !\$helper->{'VARS'}{'SINGLE_CODE'}                   &&
       !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
       return "You need to specify the number of assignments to print";
    }
           if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) >= 1)  &&
                (\$helper->{'VARS'}{'SINGLE_CODE'} ne '') ) {
               return 'Specifying number of codes to print and a specific code is not compatible';
           }
    return undef;
          </validator>
       </string>
       <message></td></tr><tr><td></message>
       <message><b>Names to save the CODEs under for later:</b></message>
       <message></td><td></message>
       <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
       <message></td></tr><tr><td></message>
       <message><b>Bubble sheet type:</b></message>
       <message></td><td></message>
       <dropdown variable="CODE_OPTION" multichoice="0" allowempty="0">
       $codechoice
       </dropdown>
       <message></td></tr><tr><td></table></message>
       <message><br /><hr /><h3>Print a Specific CODE </h3><br /><table></message>
       <message><tr><td><b>Enter a CODE to print:</b></td><td></message>
       <string variable="SINGLE_CODE" size="10">
           <validator>
      if(!\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}           &&
         !\$helper->{'VARS'}{'REUSE_OLD_CODES'}                 &&
         !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
         return &Apache::lonprintout::is_code_valid(\$helper->{'VARS'}{'SINGLE_CODE'},
         \$helper->{'VARS'}{'CODE_OPTION'});
     } elsif (\$helper->{'VARS'}{'SINGLE_CODE'} ne ''){
         return 'Specifying a code name is incompatible specifying number of codes.';
      } else {
          return undef; # Other forces control us.
      }
           </validator>
       </string>
       <message></td></tr><tr><td></message>
           $code_selection
       <message></td></tr></table></message>
       <message><hr /><h3>Reprint a Set of Saved CODEs</h3><table><tr><td></message>
       <message><b>Select saved CODEs:</b></message>
       <message></td><td></message>
       <dropdown variable="REUSE_OLD_CODES">
           $namechoice
       </dropdown>
       <message></td></tr></table></message>
     </state>
       $resource_selector
   CHOOSE_ANON2
     }      }
   
     # FIXME: That RE should come from a library somewhere.      # 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)/)) {          if (($perm{'pav'} 
         push @{$printChoices}, ["Problems from <b>$subdir</b>", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];   && $subdir ne $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'
    && (defined($helper->{'VARS'}->{'construction'})
       ||
       (&Apache::lonnet::allowed('bre',$subdir) eq 'F'
        && 
        $helper->{VARS}->{'postdata'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)/)
       )) 
    && $helper->{VARS}->{'assignment'} eq ""
    ) {
    my $pretty_dir = &Apache::lonnet::hreflocation($subdir);
           push @{$printChoices}, [&mt('Selected [_1]Problems[_2] from current subdirectory [_3]','<b>','</b>','<b><i>'.$pretty_dir.'</i></b>','<b>','</b>'), 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
           my $xmlfrag = <<CHOOSE_FROM_SUBDIR;
     <state name="CHOOSE_FROM_SUBDIR" title="Select File(s) from <b><small>$pretty_dir</small></b> to print">
   
       <files variable="FILES" multichoice='1'>
         <nextstate>PAGESIZE</nextstate>
         <filechoice>return '$subdir';</filechoice>
   CHOOSE_FROM_SUBDIR
                   
         my $f = '$filename';          # this is broken up because I really want interpolation above,
         &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_FROM_SUBDIR);          # and I really DON'T want it below
   <state name="CHOOSE_FROM_SUBDIR" title="Select Files">          $xmlfrag .= <<'CHOOSE_FROM_SUBDIR';
     <message>Select problems you wish to print from <b>$subdir</b></message>        <filefilter>return Apache::lonhelper::files::not_old_version($filename) &&
     <files variable="FILES">    $filename =~ m/\.(problem|exam|quiz|assess|survey|form|library)$/;
       <nextstate>FINAL</nextstate>  
       <filechoice>$subdir</filechoice>  
       <filefilter>return $f =~   
            m/^[^\.]+\.(problem|exam|quiz|assess|survey|form|library)$/;  
       </filefilter>        </filefilter>
         </files>
     </state>      </state>
 CHOOSE_FROM_SUBDIR  CHOOSE_FROM_SUBDIR
           &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
     }      }
   
       # Allow the user to select any sequence in the course, feed it to
       # another resource selector for that sequence
       if (!$helper->{VARS}->{'construction'} && !$is_published) {
    push @$printChoices, [&mtn("Selected <b>Resources</b> from <b>selected folder</b> in course"),
         'select_sequences', 'CHOOSE_SEQUENCE'];
    my $escapedSequenceName = $helper->{VARS}->{'SEQUENCE'};
    #Escape apostrophes and backslashes for Perl
    $escapedSequenceName =~ s/\\/\\\\/g;
    $escapedSequenceName =~ s/'/\\'/g;
    &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_FROM_ANY_SEQUENCE);
     <state name="CHOOSE_SEQUENCE" title="Select Sequence To Print From">
       <message>Select the sequence to print resources from:</message>
       <resource variable="SEQUENCE">
         <nextstate>CHOOSE_FROM_ANY_SEQUENCE</nextstate>
         <filterfunc>return \$res->is_sequence;</filterfunc>
         <valuefunc>return $urlValue;</valuefunc>
         <choicefunc>return \$res->hasResource(\$res,sub { return !\$_[0]->is_sequence() },0,0);
    </choicefunc>
         </resource>
       </state>
     <state name="CHOOSE_FROM_ANY_SEQUENCE" title="Select Resources To Print">
       <message>(mark desired resources then click "next" button) <br /></message>
       <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
                 closeallpages="1">
         <nextstate>PAGESIZE</nextstate>
         <filterfunc>return $isNotMap</filterfunc>
         <mapurl evaluate='1'>return '$escapedSequenceName';</mapurl>
         <valuefunc>return $symbFilter;</valuefunc>
         $start_new_option
         </resource>
       </state>
   CHOOSE_FROM_ANY_SEQUENCE
   }
   
     # Generate the first state, to select which resources get printed.      # Generate the first state, to select which resources get printed.
     Apache::lonhelper::state->new("START", "Selecting Resources to Print");      Apache::lonhelper::state->new("START", "Select Printing Options:");
     $paramHash = Apache::lonhelper::getParamHash();      $paramHash = Apache::lonhelper::getParamHash();
     $paramHash->{MESSAGE_TEXT} = "What do you want to print?";      $paramHash->{MESSAGE_TEXT} = "";
     Apache::lonhelper::message->new();      Apache::lonhelper::message->new();
     $paramHash = Apache::lonhelper::getParamHash();      $paramHash = Apache::lonhelper::getParamHash();
     $paramHash->{'variable'} = 'PRINT_TYPE';      $paramHash->{'variable'} = 'PRINT_TYPE';
     $paramHash->{CHOICES} = $printChoices;      $paramHash->{CHOICES} = $printChoices;
     Apache::lonhelper::choices->new();      Apache::lonhelper::choices->new();
   
       my $startedTable = 0; # have we started an HTML table yet? (need
                             # to close it later)
   
       if (($perm{'pav'} and &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) or 
    ($helper->{VARS}->{'construction'} eq '1')) {
    &addMessage('<br />'
                      .'<h3>'.&mt('Print Options').'</h3>'
                      .&Apache::lonhtmlcommon::start_pick_box()
                      .&Apache::lonhtmlcommon::row_title(
                          '<label for="ANSWER_TYPE_forminput">'
                         .&mt('Print Answers')
                         .'</label>'
                       )
           );
           $paramHash = Apache::lonhelper::getParamHash();
    $paramHash->{'variable'} = 'ANSWER_TYPE';   
    $helper->declareVar('ANSWER_TYPE');         
           $paramHash->{CHOICES} = [
                                      ['Without Answers', 'yes'],
                                      ['With Answers', 'no'],
                                      ['Only Answers', 'only']
                                   ];
           Apache::lonhelper::dropdown->new();
    &addMessage(&Apache::lonhtmlcommon::row_closure());
    $startedTable = 1;
   
   #
   #  Select font size.
   #
   
               $helper->declareVar('fontsize');
               &addMessage(&Apache::lonhtmlcommon::row_title(&mt('Font Size')));
               my $xmlfrag = << "FONT_SELECTION";
   
             
               <dropdown variable='fontsize' multichoice='0', allowempty='0'>
               <defaultvalue>
     return 'normalsize';
               </defaultvalue>
               <choice computer='tiny'>Tiny</choice>
               <choice computer='sub/superscriptsize'>Script Size</choice>
               <choice computer='footnotesize'>Footnote Size</choice>
               <choice computer='small'>Small</choice>
               <choice computer='normalsize'>Normal (default)</choice>
               <choice computer='large'>larger than normal</choice>
               <choice computer='Large'>Even larger than normal</choice>
               <choice computer='LARGE'>Still larger than normal</choice>
               <choice computer='huge'>huge font size</choice>
               <choice computer='Huge'>Largest possible size</choice>
               </dropdown>
   FONT_SELECTION
               &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
               &addMessage(&Apache::lonhtmlcommon::row_closure(1));
       }
   
       if ($perm{'pav'}) {
    if (!$startedTable) {
       addMessage("<hr width='33%' /><table><tr><td align='right'>".
                          '<label for="LATEX_TYPE_forminput">'.
                          &mt('LaTeX mode').
                          "</label>: </td><td>");
       $startedTable = 1;
    } else {
       &addMessage(&Apache::lonhtmlcommon::row_title(
                              '<label for="LATEX_TYPE_forminput">'
                              .&mt('LaTeX mode')
                              .'</label>'
                           )
               );
    }
           $paramHash = Apache::lonhelper::getParamHash();
    $paramHash->{'variable'} = 'LATEX_TYPE';   
    $helper->declareVar('LATEX_TYPE');  
    if ($helper->{VARS}->{'construction'} eq '1') {       
       $paramHash->{CHOICES} = [
        ['standard LaTeX mode', 'standard'], 
        ['LaTeX batchmode', 'batchmode'], ];
    } else {
       $paramHash->{CHOICES} = [
        ['LaTeX batchmode', 'batchmode'],
        ['standard LaTeX mode', 'standard'] ];
    }
           Apache::lonhelper::dropdown->new();
    
    &addMessage(&Apache::lonhtmlcommon::row_closure()
                      .&Apache::lonhtmlcommon::row_title(
                           '<label for="TABLE_CONTENTS_forminput">'
                          .&mt('Print Table of Contents')
                          .'</label>'
                       )
           );
           $paramHash = Apache::lonhelper::getParamHash();
    $paramHash->{'variable'} = 'TABLE_CONTENTS';   
    $helper->declareVar('TABLE_CONTENTS');         
           $paramHash->{CHOICES} = [
                                      ['No', 'no'],
                                      ['Yes', 'yes'] ];
           Apache::lonhelper::dropdown->new();
    &addMessage(&Apache::lonhtmlcommon::row_closure());
           
    if (not $helper->{VARS}->{'construction'}) {
       &addMessage(&Apache::lonhtmlcommon::row_title(
                               '<label for="TABLE_INDEX_forminput">'
                              .&mt('Print Index')
                              .'</label>'
                           )
               );
       $paramHash = Apache::lonhelper::getParamHash();
       $paramHash->{'variable'} = 'TABLE_INDEX';   
       $helper->declareVar('TABLE_INDEX');         
       $paramHash->{CHOICES} = [
        ['No', 'no'],
        ['Yes', 'yes'] ];
       Apache::lonhelper::dropdown->new();
               &addMessage(&Apache::lonhtmlcommon::row_closure());
               &addMessage(&Apache::lonhtmlcommon::row_title(
                               '<label for="PRINT_DISCUSSIONS_forminput">'
                              .&mt('Print Discussions')
                              .'</label>'
                           )
               );
       $paramHash = Apache::lonhelper::getParamHash();
       $paramHash->{'variable'} = 'PRINT_DISCUSSIONS';   
       $helper->declareVar('PRINT_DISCUSSIONS');         
       $paramHash->{CHOICES} = [
        ['No', 'no'],
        ['Yes', 'yes'] ];
       Apache::lonhelper::dropdown->new();
               &addMessage(&Apache::lonhtmlcommon::row_closure());
   
       # Prompt for printing annotations too.
   
       &addMessage(&Apache::lonhtmlcommon::row_title(
                               '<label for="PRINT_ANNOTATIONS_forminput">'
                              .&mt('Print Annotations')
                              .'</label>'
                           )
               );
       $paramHash = Apache::lonhelper::getParamHash();
       $paramHash->{'variable'} = "PRINT_ANNOTATIONS";
       $helper->declareVar("PRINT_ANNOTATIONS");
       $paramHash->{CHOICES} = [
        ['No', 'no'],
        ['Yes', 'yes']];
       Apache::lonhelper::dropdown->new();
               &addMessage(&Apache::lonhtmlcommon::row_closure());
   
               &addMessage(&Apache::lonhtmlcommon::row_title(&mt('Foils')));
       $paramHash = Apache::lonhelper::getParamHash();
       $paramHash->{'multichoice'} = "true";
       $paramHash->{'allowempty'}  = "true";
       $paramHash->{'variable'}   = "showallfoils";
       $paramHash->{'CHOICES'} = [ [&mt('Show All Foils'), "1"] ];
       Apache::lonhelper::choices->new();
               &addMessage(&Apache::lonhtmlcommon::row_closure(1));
    }
   
    if ($helper->{'VARS'}->{'construction'}) { 
       my $stylevalue='$Apache::lonnet::env{"construct.style"}';
               my $randseedtext=&mt("Use random seed");
               my $stylefiletext=&mt("Use style file");
               my $selectfiletext=&mt("Select style file");
   
       my $xmlfrag .= '<message>'
               .&Apache::lonhtmlcommon::row_title('<label for="curseed_forminput">'
                                                 .$randseedtext
                                                 .'</label>'
                )
               .'</message>
               <string variable="curseed" size="15" maxlength="15">
                   <defaultvalue>
                      return '.$helper->{VARS}->{'curseed'}.';
                   </defaultvalue>'
               .'</string>'
               .'<message>'
               .&Apache::lonhtmlcommon::row_closure()
               .&Apache::lonhtmlcommon::row_title('<label for="style_file">'
                                                 .$stylefiletext
                                                 .'</label>'
                )
               .'</message>
                <string variable="style_file" size="40">
                   <defaultvalue>
                       return '.$stylevalue.';
                   </defaultvalue>
                </string><message>&nbsp;'
   .qq|<a href="javascript:openbrowser('helpform','style_file_forminput','sty')">|
   .$selectfiletext.'</a>'
               .&Apache::lonhtmlcommon::row_closure()
               .&Apache::lonhtmlcommon::row_title(&mt('Show All Foils'))
               .'</message>
        <choices allowempty="1" multichoice="true" variable="showallfoils">
                   <choice computer="1">&nbsp;</choice>
                </choices>'
       .'<message>'
               .&Apache::lonhtmlcommon::row_closure()
               .'</message>';
               &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
   
   
               &addMessage(&Apache::lonhtmlcommon::row_title(&mt('Problem Type')));
       #
       # Initial value from construction space:
       #
       if (!$helper->{VARS}->{'probstatus'} && $env{'form.problemtype'}) {
    $helper->{VARS}->{'probstatus'} = $env{'form.problemtype'}; # initial value
       }
       $xmlfrag = << "PROBTYPE";
    <dropdown variable="probstatus" multichoice="0" allowempty="0">
      <defaultvalue>
         return "$helper->{VARS}->{'probstatus'}";
                      </defaultvalue>
      <choice computer="problem">Homework Problem</choice>
      <choice computer="exam">Exam Problem</choice>
      <choice computer="survey">Survey question</choice>
                      ,choice computer="anonsurvey"Anonymous survey question</choice>
    </dropdown>
   PROBTYPE
               &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
               &addMessage(&Apache::lonhtmlcommon::row_closure(1));
   
   
   
           }
       }
   
   
   
   
       if ($startedTable) {
           &addMessage(&Apache::lonhtmlcommon::end_pick_box());
       }
   
     Apache::lonprintout::page_format_state->new("FORMAT");      Apache::lonprintout::page_format_state->new("FORMAT");
   
       # Generate the PAGESIZE state which will offer the user the margin
       # choices if they select one column
       Apache::lonhelper::state->new("PAGESIZE", "Set Margins");
       Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL');
   
   
     $helper->process();      $helper->process();
   
   
     # MANUAL BAILOUT CONDITION:      # MANUAL BAILOUT CONDITION:
     # If we're in the "final" state, bailout and return to handler      # If we're in the "final" state, bailout and return to handler
     if ($helper->{STATE} eq 'FINAL') {      if ($helper->{STATE} eq 'FINAL') {
Line 1454  CHOOSE_FROM_SUBDIR Line 4130  CHOOSE_FROM_SUBDIR
     }          }    
   
     $r->print($helper->display());      $r->print($helper->display());
       if ($helper->{STATE} eq 'START') {
     Apache::lonhelper::unregisterHelperTags();   &recently_generated($r);
       }
     untie %hash;      &Apache::lonhelper::unregisterHelperTags();
   
     return OK;      return OK;
 }  }
Line 1495  use Apache::lonhelper; Line 4171  use Apache::lonhelper;
 no strict;  no strict;
 @ISA = ("Apache::lonhelper::element");  @ISA = ("Apache::lonhelper::element");
 use strict;  use strict;
   use Apache::lonlocal;
   use Apache::lonnet;
   
 my $maxColumns = 2;  my $maxColumns = 2;
 my @paperSize = ("Letter [8 1/2x11 in]", "Legal [8 1/2x14 in]",   # it'd be nice if these all worked
                  "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]",  #my @paperSize = ("letter [8 1/2x11 in]", "legal [8 1/2x14 in]", 
                  "A2 [420x594 mm]", "A3 [297x420 mm]", "A4 [210x297 mm]",   #                 "tabloid (ledger) [11x17 in]", "executive [7 1/2x10 in]",
                  "A5 [148x210 mm]", "A6 [105x148 mm]" );  #                 "a2 [420x594 mm]", "a3 [297x420 mm]", "a4 [210x297 mm]", 
   #                 "a5 [148x210 mm]", "a6 [105x148 mm]" );
   my @paperSize = ("letter [8 1/2x11 in]", "legal [8 1/2x14 in]", 
    "a4 [210x297 mm]");
   
 # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |  # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
 #                   Paper type  #                   Paper type
Line 1508  my @paperSize = ("Letter [8 1/2x11 in]", Line 4189  my @paperSize = ("Letter [8 1/2x11 in]",
 sub new {   sub new { 
     my $self = Apache::lonhelper::element->new();      my $self = Apache::lonhelper::element->new();
   
       shift;
   
     $self->{'variable'} = shift;      $self->{'variable'} = shift;
       my $helper = Apache::lonhelper::getHelper();
       $helper->declareVar($self->{'variable'});
     bless($self);      bless($self);
     return $self;      return $self;
 }  }
Line 1518  sub render { Line 4203  sub render {
     my $helper = Apache::lonhelper::getHelper();      my $helper = Apache::lonhelper::getHelper();
     my $result = '';      my $result = '';
     my $var = $self->{'variable'};      my $var = $self->{'variable'};
     my $curVal = $helper->{VARS}->{$var};      my $PageLayout=&mt('Page layout');
       my $NumberOfColumns=&mt('Number of columns');
     my ($layout, $cols, $paper) = split(/\|/, $curVal);      my $PaperType=&mt('Paper type');
       my $landscape=&mt('Landscape');
       my $portrait=&mt('Portrait');
       
   
     $result .= <<STATEHTML;      $result.='<h3>'.&mt('Layout Options').'</h3>'
               .&Apache::loncommon::start_data_table()
               .&Apache::loncommon::start_data_table_header_row()
               .'<th>'.$PageLayout.'</th>'
               .'<th>'.$NumberOfColumns.'</th>'
               .'<th>'.$PaperType.'</th>'
               .&Apache::loncommon::end_data_table_header_row()
               .&Apache::loncommon::start_data_table_row()
       .'<td>'
       .'<label><input type="radio" name="'.${var}.'.layout" value="L" />'.$landscape.'</label><br />'
       .'<label><input type="radio" name="'.${var}.'.layout" value="P" checked="checked" />'.$portrait.'</label>'
       .'</td>';
   
 <p>How should the printing be formatted?</p>      $result.='<td align="center">'
 <table cellpadding="3">              .'<select name="'.${var}.'.cols">';
   <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;      my $i;
     for ($i = 1; $i <= $maxColumns; $i++) {      for ($i = 1; $i <= $maxColumns; $i++) {
         if ($i == $cols) {          if ($i == 2) {
             $result .= "<option value='$i' selected>$i</option>\n";              $result .= '<option value="'.$i.'" selected="selected">'.$i.'</option>'."\n";
         } else {          } else {
             $result .= "<option value='$i'>$i</option>\n";              $result .= '<option value="'.$i.'">'.$i.'</option>'."\n";
         }          }
     }      }
   
     $result .= "</select></td><td>\n";      $result .= "</select></td><td>\n";
     $result .= "<select name='${var}.paper'>\n";      $result .= "<select name='${var}.paper'>\n";
   
       my %parmhash=&Apache::lonnet::coursedescription($env{'request.course.id'});
       my $DefaultPaperSize=lc($parmhash{'default_paper_size'});
       $DefaultPaperSize=~s/\s//g;
       if ($DefaultPaperSize eq '') {$DefaultPaperSize='letter';}
     $i = 0;      $i = 0;
     foreach (@paperSize) {      foreach (@paperSize) {
         if ($paper == $i) {   $_=~/(\w+)/;
             $result .= "<option selected value='$i'>" . $paperSize[$i] . "</option>\n";   my $papersize=$1;
           if ($paperSize[$i]=~/$DefaultPaperSize/) {
               $result .= '<option selected="selected" value="'.$papersize.'">'.$paperSize[$i].'</option>'."\n";
         } else {          } else {
             $result .= "<option value='$i'>" . $paperSize[$i] . "</option>\n";              $result .= '<option value="'.$papersize.'">'.$paperSize[$i].'</option>'."\n";
         }          }
         $i++;          $i++;
     }      }
       $result .= <<HTML;
           </select>
       </td>
   HTML
       $result.=&Apache::loncommon::end_data_table_row()
               .&Apache::loncommon::end_data_table();
   
     $result .= "</select></td></tr></table>";  
     return $result;      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"} . '|' . $env{"form.$var.pdfFormFields"};
       return 1;
   }
   
 1;  1;
   
   package Apache::lonprintout::page_size_state;
   
   =pod
   
   =head1 Helper element: page_size_state
   
   See lonhelper.pm documentation for discussion of the helper framework.
   
   Apache::lonprintout::page_size_state is an element that gives the 
   user the opportunity to further refine the page settings if they
   select a single-column page.
   
   page_size_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;
   use Apache::lonnet;
   no strict;
   @ISA = ("Apache::lonhelper::element");
   use strict;
   
   
   
   sub new { 
       my $self = Apache::lonhelper::element->new();
   
       shift; # disturbs me (probably prevents subclassing) but works (drops
              # package descriptor)... - Jeremy
   
       $self->{'variable'} = shift;
       my $helper = Apache::lonhelper::getHelper();
       $helper->declareVar($self->{'variable'});
   
       # The variable name of the format element, so we can look into 
       # $helper->{VARS} to figure out whether the columns are one or two
       $self->{'formatvar'} = shift;
   
   
       $self->{NEXTSTATE} = shift;
       bless($self);
   
       return $self;
   }
   
   sub render {
       my $self = shift;
       my $helper = Apache::lonhelper::getHelper();
       my $result = '';
       my $var = $self->{'variable'};
   
   
   
       if (defined $self->{ERROR_MSG}) {
           $result .= '<br /><span class="LC_error">' . $self->{ERROR_MSG} . '</span><br />';
       }
   
       my $format = $helper->{VARS}->{$self->{'formatvar'}};
   
       # Use format to get sensible defaults for the margins:
   
   
       my ($laystyle, $cols, $papersize) = split(/\|/, $format);
       ($papersize)                      = split(/ /, $papersize);
   
       $laystyle = &Apache::lonprintout::map_laystyle($laystyle);
   
   
   
       my %size;
       ($size{'width_and_units'},
        $size{'height_and_units'},
        $size{'margin_and_units'})=
    &Apache::lonprintout::page_format($papersize, $laystyle, $cols);
       
       foreach my $dimension ('width','height','margin') {
    ($size{$dimension},$size{$dimension.'_unit'}) =
       split(/ +/, $size{$dimension.'_and_units'},2);
          
    foreach my $unit ('cm','in') {
       $size{$dimension.'_options'} .= '<option ';
       if ($size{$dimension.'_unit'} eq $unit) {
    $size{$dimension.'_options'} .= 'selected="selected" ';
       }
       $size{$dimension.'_options'} .= '>'.$unit.'</option>';
    }
       }
   
       # Adjust margin for LaTeX margin: .. requires units == cm or in.
   
       if ($size{'margin_unit'} eq 'in') {
    $size{'margin'} += 1;
       }  else {
    $size{'margin'} += 2.54;
       }
       my %lt = &Apache::lonlocal::texthash(
           'format' => 'How should each column be formatted?',
           'width'  => 'Width',
           'height' => 'Height',
           'margin' => 'Left Margin'
       );
   
       $result .= '<p>'.$lt{'format'}.'</p>'
                 .&Apache::lonhtmlcommon::start_pick_box()
                 .&Apache::lonhtmlcommon::row_title($lt{'width'})
                 .'<input type="text" name="'.$var.'.width" value="'.$size{'width'}.'" size="4" />'
                 .'<select name="'.$var.'.widthunit">'
                 .$size{'width_options'}
                 .'</select>'
                 .&Apache::lonhtmlcommon::row_closure()
                 .&Apache::lonhtmlcommon::row_title($lt{'height'})
                 .'<input type="text" name="'.$var.'.height" value="'.$size{'height'}.'" size="4" />'
                 .'<select name="'.$var.'.heightunit">'
                 .$size{'height_options'}
                 .'</select>'
                 .&Apache::lonhtmlcommon::row_closure()
                 .&Apache::lonhtmlcommon::row_title($lt{'margin'})
                 .'<input type="text" name="'.$var.'.lmargin" value="'.$size{'margin'}.'" size="4" />'
                 .'<select name="'.$var.'.lmarginunit">'
                 .$size{'margin_options'}
                 .'</select>'
                 .&Apache::lonhtmlcommon::row_closure(1)
                 .&Apache::lonhtmlcommon::end_pick_box();
       # <p>Hint: Some instructors like to leave scratch space for the student by
       # making the width much smaller than the width of the page.</p>
   
       return $result;
   }
   
   
   sub preprocess {
       my $self = shift;
       my $helper = Apache::lonhelper::getHelper();
   
       my $format = $helper->{VARS}->{$self->{'formatvar'}};
   
       #  If the user does not have 'pav' privilege, set default widths and
       #  on to the next state right away.
       #
       if (!$perm{'pav'}) {
    my $var = $self->{'variable'};
    my $format = $helper->{VARS}->{$self->{'formatvar'}};
   
    my ($laystyle, $cols, $papersize) = split(/\|/, $format);
    ($papersize)                      = split(/ /, $papersize);
   
   
    $laystyle = &Apache::lonprintout::map_laystyle($laystyle);
   
    #  Figure out some good defaults for the print out and set them:
   
    my %size;
    ($size{'width'},
    $size{'height'},
    $size{'lmargin'})=
        &Apache::lonprintout::page_format($papersize, $laystyle, $cols);
   
    foreach my $dim ('width', 'height', 'lmargin') {
       my ($value, $units) = split(/ /, $size{$dim});
           
       $helper->{VARS}->{"$var.".$dim}      = $value;
       $helper->{VARS}->{"$var.".$dim.'unit'} = $units;
       
    }
   
   
    # Transition to the next state
   
    $helper->changeState($self->{NEXTSTATE});
       }
      
       return 1;
   }
   
   sub postprocess {
       my $self = shift;
   
       my $var = $self->{'variable'};
       my $helper = Apache::lonhelper->getHelper();
       my $width = $helper->{VARS}->{$var .'.width'} = $env{"form.${var}.width"}; 
       my $height = $helper->{VARS}->{$var .'.height'} = $env{"form.${var}.height"}; 
       my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $env{"form.${var}.lmargin"}; 
       $helper->{VARS}->{$var .'.widthunit'} = $env{"form.${var}.widthunit"}; 
       $helper->{VARS}->{$var .'.heightunit'} = $env{"form.${var}.heightunit"}; 
       $helper->{VARS}->{$var .'.lmarginunit'} = $env{"form.${var}.lmarginunit"}; 
   
       my $error = '';
   
       # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed 
       # by an optional period, followed by digits, ending the string
   
       if ($width !~  /^-?[0-9]*(\.[0-9]*)?$/) {
           $error .= "Invalid width; please type only a number.<br />\n";
       }
       if ($height !~  /^-?[0-9]*(\.[0-9]*)?$/) {
           $error .= "Invalid height; please type only a number.<br />\n";
       }
       if ($lmargin !~  /^-?[0-9]*(\.[0-9]*)?$/) {
           $error .= "Invalid left margin; please type only a number.<br />\n";
       } else {
    # Adjust for LaTeX 1.0 inch margin:
   
    if ($env{"form.${var}.lmarginunit"} eq "in") {
       $helper->{VARS}->{$var.'.lmargin'} = $lmargin - 1;
    } else {
       $helper->{VARS}->{$var.'.lmargin'} = $lmargin - 2.54;
    }
       }
   
       if (!$error) {
           Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE});
           return 1;
       } else {
           $self->{ERROR_MSG} = $error;
           return 0;
       }
   }
   
   
   
 __END__  __END__
   
Removed from v.1.131  
changed lines
  Added in v.1.583.2.2

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