File:  [LON-CAPA] / loncom / interface / lonprintout.pm
Revision 1.60: download - view: text, annotated - select for diffs
Wed Sep 11 18:07:35 2002 UTC (21 years, 9 months ago) by sakharuk
Branches: MAIN
CVS tags: HEAD
Changes for mwnu - titles appears in menu items.

    1: # The LearningOnline Network
    2: # Printout
    3: #
    4: # $Id: lonprintout.pm,v 1.60 2002/09/11 18:07:35 sakharuk Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: # (Internal Server Error Handler
   29: #
   30: # (Login Screen
   31: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
   32: # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
   33: #
   34: # 3/1/1 Gerd Kortemeyer)
   35: #
   36: # 3/1 Gerd Kortemeyer
   37: #
   38: # 9/17 Alex Sakharuk
   39: #
   40: package Apache::lonprintout;
   41: 
   42: use strict;
   43: use Apache::Constants qw(:common :http);
   44: use Apache::lonxml;
   45: use Apache::lonnet;
   46: use Apache::loncommon;
   47: use Apache::inputtags;
   48: use Apache::grades;
   49: use Apache::edit;
   50: use Apache::File();
   51: use POSIX qw(strftime);
   52: use GDBM_File;
   53: 
   54: 
   55: my %hash;
   56: 
   57: 
   58: sub headerform {
   59:     my $r = shift;
   60:     $r->print(<<ENDHEADER);
   61: <html>
   62: <head>
   63: <title>LON-CAPA output for printing</title>
   64: </head>
   65: <body bgcolor="FFFFFF">
   66: <form method="post" enctype="multipart/form-data" action="/adm/printout" name="printform">
   67: <tt>$ENV{'form.postdata'}</tt><p>
   68: ENDHEADER
   69: }
   70: 
   71: 
   72: sub menu_for_output {
   73:     my $r = shift;
   74:     my ($title_for_single_resource,$title_for_sequence) = &details_for_menu;
   75:     if ($title_for_single_resource ne '') {$title_for_single_resource = '"'.$title_for_single_resource.'"';}
   76:     if ($title_for_sequence ne '') {$title_for_sequence = '"'.$title_for_sequence.'"';}
   77:     $r->print(<<ENDMENUOUT1);
   78: <h1>What do you want to print? Make a choice.</h1><br />
   79: <input type="hidden" name="phase" value="two">
   80: <input type="hidden" name="url" value="$ENV{'form.postdata'}">
   81: <input type="radio" name="choice" value="Standard LaTeX output for current document" checked>  Current document <b>$title_for_single_resource</b>
   82: (you will print what you see on the screen)<br />
   83: ENDMENUOUT1
   84:     if ((not $ENV{'request.role'}=~m/^au\./) and (not $ENV{'request.role'}=~m/^ca\./)) {
   85: 	$r->print(<<ENDMENUOUT2);
   86: <input type="radio" name="choice" value="Standard LaTeX output for the primary sequence">  All problems from the primary sequence <b>$title_for_sequence</b><br />
   87: <input type="radio" name="choice" value="Standard LaTeX output for whole primary sequence">  The whole primary sequence <b>$title_for_sequence</b> (problems plus all html and xml files)<br />
   88: ENDMENUOUT2
   89:     }
   90:     if ($ENV{'request.role'}=~m/^cc\./ or $ENV{'request.role'}=~m/^in\./ or $ENV{'request.role'}=~m/^ta\./) { 
   91: 	$r->print(<<ENDMENUOUT6);
   92: <input type="radio" name="choice" value="Standard LaTeX output for the top level sequence">  All problems from the top level sequence<br />
   93: <br />
   94: <input type="radio" name="choice" value="All class print">  Print assignment <b>$title_for_sequence</b> (all problems from the primary sequence) for group of students<br /><br />
   95: ENDMENUOUT6
   96:     }
   97:       my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'});
   98:       $subdirtoprint =~ s/\/[^\/]+$//;
   99:       if (&Apache::lonnet::allowed('bre',$subdirtoprint) eq 'F') {
  100: 	  $r->print(<<ENDMENUOUT4);
  101:   <input type="radio" name="choice" value="Subdirectory print">  All problems from current subdirectory (where this particular problem is)<br />
  102: ENDMENUOUT4
  103:       }
  104:     $r->print(<<ENDMENUOUT5);
  105: <br /><hr /><br />
  106: <h1>And what page format do you prefer?</h1>
  107: <table>
  108:  <tr>
  109:    <td>
  110:      <input type="radio" name="layout" value="CBI"> Landscape <br />
  111:      <input type="radio" name="layout" value="CAPA" checked>  Portrait <br />
  112:    </td>
  113:    <td>&nbsp;</td>
  114:    <td rawspan="2">
  115:      Number of columns: <select name="numberofcolumns">
  116:                          <option> 1 </option>
  117:                          <option selected> 2 </option>
  118:                         </select> 
  119:    </td>
  120:    <td rawspan="2">
  121:      Paper size (format [width x height]): <select name="papersize">
  122:                                             <option selected> Letter [216x297 mm] </option>
  123:                                             <option> Legal [216x356 mm] </option>
  124:                                             <option> Executive [190x254 mm] </option>
  125:                                             <option> Ledger/Tabloid [279x432 mm] </option>
  126:                                             <option> A2 [420x594 mm] </option>
  127:                                             <option> A3 [297x420 mm] </option>
  128:                                             <option> A4 [210x297 mm] </option>
  129:                                             <option> A5 [148x210 mm] </option>
  130:                                             <option> A6 [105x148 mm] </option>
  131:                                            </select> 
  132:    </td>
  133:  </tr>
  134: </table>
  135: </br> 
  136: <input type="submit" value="Submit your choice">
  137: ENDMENUOUT5
  138: }
  139: 
  140: 
  141: sub problem_choice_menu {
  142:     my $r = shift;
  143:     my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'});
  144:     $subdirtoprint =~ s/\/[^\/]+$//;
  145:     my @list_of_files = ();
  146:     if ($ENV{'request.role'}=~m/^au\./ or $ENV{'request.role'}=~m/^ca\./) {
  147: 	$subdirtoprint =~ s/^[^~]*~(\w+)\//\/home\/$1\/public_html\//;
  148:     } else {
  149: 	$subdirtoprint =~ s/.*(\/res\/)/$1/;
  150:     }
  151:     my @content_directory = ();
  152:     if ($ENV{'request.role'}=~m/^au\./ or $ENV{'request.role'}=~m/^ca\./) {
  153: 	@content_directory = &Apache::lonnet::dirlist($subdirtoprint,$ENV{'user.domain'}, $ENV{'user.name'},'');
  154:     } else {
  155: 	@content_directory = &Apache::lonnet::dirlist($subdirtoprint);
  156:     }
  157:     for (my $iy=0;$iy<=$#content_directory;$iy++) {
  158: 	my @tempo_array = split(/&/,$content_directory[$iy]);
  159: 	if ($tempo_array[0] =~ m/^[^\.]+\.(problem|exam|quiz|assess|survey|form|library)$/) {
  160: 	    push(@list_of_files,$tempo_array[0]);
  161: 	}
  162:     }
  163:     $subdirtoprint =~ s/\/$//;
  164:     for (my $i=0;$i<=$#list_of_files;$i++) {
  165: 	$list_of_files[$i] = $subdirtoprint.'/'.$list_of_files[$i];
  166:     }
  167:     $r->print(<<ENDMENUOUT1);
  168: <input type="hidden" name="url" value="$ENV{'form.url'}">
  169: <input type="hidden" name="choice" value="$ENV{'form.choice'}">
  170: <input type="hidden" name="layout" value="$ENV{'form.layout'}">
  171: <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
  172: <h1>Mark problems which you want to print</h1>
  173: <script>
  174:     function checkall() {
  175: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  176:             if 
  177:           (document.forms.printform.elements[i].name.indexOf('whattoprint')==0) {
  178: 	      document.forms.printform.elements[i].checked=true;
  179:             }
  180:         }
  181:     }
  182: 
  183: 
  184:     function uncheckall() {
  185: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  186:             if 
  187:           (document.forms.printform.elements[i].name.indexOf('whattoprint')==0) {
  188: 	      document.forms.printform.elements[i].checked=false;
  189:             }
  190:         }
  191:     }
  192: </script>
  193: <input type=button onClick="checkall()" value="Check All">&nbsp;
  194: <input type=button onClick="uncheckall()" value="Uncheck">
  195: <p>
  196: ENDMENUOUT1
  197:     my $i;
  198:     foreach my $file (@list_of_files) {
  199: 	$r->print('<br /><input type=checkbox name="whattoprint'.$i.'" value="'.$file.'"> '.
  200:                   $file);
  201: 	$i++;
  202:     }
  203:     $r->print(<<ENDMENUOUT2);
  204: <br />
  205: <input type="hidden" name="numberofproblems" value="$i">
  206: <input type="hidden" name="phase" value="three">
  207: <input type="submit" value="Submit">
  208: ENDMENUOUT2
  209: }
  210: 
  211: 
  212: sub additional_class_menu {
  213:     my $r = shift;
  214:     $r->print(<<ENDMENUOUT1);
  215: <input type="hidden" name="url" value="$ENV{'form.url'}">
  216: <input type="hidden" name="choice" value="$ENV{'form.choice'}">
  217: <input type="hidden" name="layout" value="$ENV{'form.layout'}">
  218: <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
  219: <h1>Mark students which assignments you want to print</h1>
  220: ENDMENUOUT1
  221:     my %courselist=&Apache::lonnet::dump(
  222:                    'classlist',
  223: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
  224: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
  225:     my $now=time;
  226:     $r->print(<<ENDDISHEADER);
  227: <script>
  228:     function checkall() {
  229: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  230:             if 
  231:           (document.forms.printform.elements[i].name.indexOf('whomtoprint')==0) {
  232: 	      document.forms.printform.elements[i].checked=true;
  233:             }
  234:         }
  235:     }
  236: 
  237:     function checksec() {
  238: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  239:             if 
  240:           (document.forms.printform.elements[i].value.indexOf
  241:            (document.forms.printform.chksec.value)==0) {
  242: 	      document.forms.printform.elements[i].checked=true;
  243:             }
  244:         }
  245:     }
  246: 
  247:     function uncheckall() {
  248: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  249:             if 
  250:           (document.forms.printform.elements[i].name.indexOf('whomtoprint')==0) {
  251: 	      document.forms.printform.elements[i].checked=false;
  252:             }
  253:         }
  254:     }
  255: </script>
  256: <input type=button onClick="checkall()" value="Check All">&nbsp;
  257: <input type=button onClick="checksec()" value="Check Section/Group">
  258: <input type=text size=5 name=chksec>&nbsp;
  259: <input type=button onClick="uncheckall()" value="Uncheck">
  260: <p>
  261: ENDDISHEADER
  262:     my $i = 0;
  263:     foreach (sort keys %courselist) {
  264:         my ($end,$start)=split(/\:/,$courselist{$_});
  265:         my $active=1;
  266:         if (($end) && ($now>$end)) { $active=0; }
  267:         if ($active) {
  268:            my ($sname,$sdom)=split(/\:/,$_);
  269:            my %reply=&Apache::lonnet::get('environment',
  270:               ['firstname','middlename','lastname','generation'],
  271:               $sdom,$sname);
  272:            my $section=&Apache::lonnet::usection
  273: 	       ($sdom,$sname,$ENV{'request.course.id'});
  274:            $r->print(
  275:         '<br /><input type=checkbox name="whomtoprint'.$i.'" value="'.$section.':'.$_.'"> '.
  276: 		      $reply{'firstname'}.' '. 
  277:                       $reply{'middlename'}.' '.
  278:                       $reply{'lastname'}.' '.
  279:                       $reply{'generation'}.
  280:                       ' ('.$_.') '.$section);
  281: 	   $i++;
  282:         } 
  283:     }
  284:     $r->print(<<ENDMENUOUT2);
  285: <br />
  286: <input type="hidden" name="numberofstudents" value="$i">
  287: <input type="hidden" name="phase" value="three">
  288: <input type="submit" value="Submit">
  289: ENDMENUOUT2
  290: }
  291: 
  292: 
  293: sub additional_print_menu { 
  294:     my $r = shift;
  295:     my $what_to_print = '';
  296:     for (my $i=0; $i<$ENV{'form.numberofstudents'};$i++) {
  297: 	$what_to_print .= '<input type="hidden" name="whomtoprint'.$i.'" value="'.$ENV{'form.whomtoprint'.$i}.'">';
  298:     }
  299:     for (my $i=0; $i<$ENV{'form.numberofproblems'};$i++) {
  300: 	$what_to_print .= '<input type="hidden" name="whattoprint'.$i.'" value="'.$ENV{'form.whattoprint'.$i}.'">';
  301:     }
  302:     $r->print(<<ENDMENUOUT);
  303:     $what_to_print
  304: <input type="hidden" name="url" value="$ENV{'form.url'}">
  305: <input type="hidden" name="choice" value="$ENV{'form.choice'}">
  306: <input type="hidden" name="layout" value="$ENV{'form.layout'}">
  307: <input type="hidden" name="numberofstudents" value="$ENV{'form.numberofstudents'}">
  308: <input type="hidden" name="numberofproblems" value="$ENV{'form.numberofproblems'}">
  309: <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
  310: Define page layout parameters: <br />
  311: <b>Width</b>: <input type="text" name="width" width="8" value="9cm"> <br />
  312: <b>Height</b>: <input type="text" name="height" width="8" value="25.9cm"> <br />
  313: <b>Left margin</b>: <input type="text" name="leftmargin" width="8" value="-0.57in"> <br />
  314: <input type="hidden" name="phase" value="four">
  315: <input type="submit" value="Submit">
  316: </form>
  317: </body>
  318: </html>
  319: ENDMENUOUT
  320: }
  321: 
  322: 
  323: sub output_data {
  324:     my $r = shift;
  325:     $r->print(<<ENDPART);
  326: <html>
  327: <head>
  328: <title>LON-CAPA output for printing</title>
  329: </head>
  330: <body bgcolor="FFFFFF">
  331: <hr>
  332: ENDPART
  333: 
  334:     my $choice = $ENV{'form.choice'};
  335:     my $layout = $ENV{'form.layout'};
  336:     my $numberofcolumns = $ENV{'form.numberofcolumns'};               
  337:     my $laystyle = 'book';
  338:     my $result = '';
  339:     my $number_of_columns = 1;
  340:     my $selectionmade = '';
  341:  
  342:     if ($choice eq 'Standard LaTeX output for current document') {
  343:       #-- single document - problem, page, html, xml  
  344:       $selectionmade = 1;
  345:       my %moreenv;
  346:       $moreenv{'form.grade_target'}='tex';
  347:       if ($ENV{'request.role'}=~m/^au\./ or $ENV{'request.role'}=~m/^ca\./) {
  348: 	  $ENV{'form.url'}=~s/http:\/\/[^\/]+//;
  349:       }
  350:       $moreenv{'request.filename'}=$ENV{'form.url'};
  351:       &Apache::lonnet::appenv(%moreenv);
  352:       my $texversion=&Apache::lonnet::ssi($ENV{'form.url'});
  353:       &Apache::lonnet::delenv('form.grade_target');
  354:       $result .= $texversion;
  355:       $result = &additional_cleanup($result);
  356:       if ($ENV{'form.url'}=~m/\.page\s*$/) {
  357: 	  ($result,$number_of_columns) = &page_cleanup($result);
  358:       }
  359:     } elsif ($choice eq 'Standard LaTeX output for the primary sequence' or 
  360:              $choice eq 'Standard LaTeX output for whole primary sequence') {
  361:       #-- minimal sequence to which the current document belongs
  362:         #-- where is the primary sequence containing file?
  363: 	my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'});
  364: 	$symbolic =~ m/([^_]+)_/;
  365: 	my $primary_sequence = '/res/'.$1;
  366:         #-- open and analyses the primary sequence
  367: 	my $sequence_file=&Apache::lonnet::filelocation("",$primary_sequence);
  368: 	my $sequencefilecontents=&Apache::lonnet::getfile($sequence_file);
  369: 	my @master_seq = &content_map($sequencefilecontents);
  370:         #-- produce an output string
  371: 	for (my $i=0;$i<=$#master_seq;$i++) {
  372: 	    $_ = $master_seq[$i];
  373: 	    m/\"(.*)\"/;
  374:             $_ = $1;
  375:             my $urlp = $1;		
  376: 	    if ($choice eq 'Standard LaTeX output for the primary sequence') {
  377: 		$selectionmade = 2;
  378: 		if ($urlp =~ m/\.(problem|exam|quiz|assess|survey|form|library)/) {
  379: 		    my %moreenv;
  380: 		    $moreenv{'form.grade_target'}='tex';
  381: 		    &Apache::lonnet::appenv(%moreenv);
  382: 		    my $texversion=&Apache::lonnet::ssi($urlp);
  383: 		    &Apache::lonnet::delenv('form.grade_target');
  384: 		    $result .= $texversion;        
  385: 		}
  386: 	    } elsif ($urlp =~ /\S+/) {
  387: 		$selectionmade = 3;
  388: 		my %moreenv;
  389: 		$moreenv{'form.grade_target'}='tex';
  390: 		&Apache::lonnet::appenv(%moreenv);
  391: 		my $texversion=&Apache::lonnet::ssi($urlp);
  392: 		&Apache::lonnet::delenv('form.grade_target');
  393: 		$result .= $texversion;    
  394: 	    }
  395: 	}	
  396: 	$result = &additional_cleanup($result);
  397:     }  elsif ($choice eq 'Standard LaTeX output for the top level sequence') {
  398:         # where is the main sequence of the course?
  399: 	$selectionmade = 4;
  400: 	my $main_seq = '/res/'.$ENV{'request.course.uri'};
  401: 	my $file=&Apache::lonnet::filelocation("",$main_seq);
  402: 	my $filecontents=&Apache::lonnet::getfile($file);
  403: 	my @file_seq = &content_map($filecontents);
  404: 	for (my $iu=0;$iu<=$#file_seq;$iu++) {
  405: 	    $file_seq[$iu]=~s/^"//;
  406: 	    $file_seq[$iu]=~s/"$//;
  407: 	    if ($file_seq[$iu]=~m/\S+/) {
  408: 		$file_seq[$iu]=&Apache::lonnet::filelocation("",$file_seq[$iu]);
  409: 	    } else {
  410: 		$file_seq[$iu]= 'REMOVE IT PLEASE';
  411: 	    }
  412: 	}
  413: 	my $i=0;
  414:         my $limit = $#file_seq;		    
  415:         while ($i<=$limit) {	
  416: 	    unless ($file_seq[$i]=~m/\.(problem|page)/) {
  417: 		if ($file_seq[$i]=~m/\.sequence/) {
  418: 		    my $filecontents=&Apache::lonnet::getfile($file_seq[$i]);
  419: 		    my @newfile_seq = &content_map($filecontents);
  420: 		    for (my $iu=0;$iu<=$#newfile_seq;$iu++) {
  421: 			$newfile_seq[$iu]=~s/^"//;
  422: 	                $newfile_seq[$iu]=~s/"$//;
  423: 			if ($newfile_seq[$iu]=~m/\S+/) {
  424: 			    $newfile_seq[$iu]=&Apache::lonnet::filelocation("",$newfile_seq[$iu]);
  425: 			} else {
  426: 			    $newfile_seq[$iu]= 'REMOVE IT PLEASE';
  427: 			}
  428: 		    }
  429: 		    splice @file_seq,$i,1,@newfile_seq;
  430: 		    $i=0;
  431: 		    $limit = $#file_seq;
  432: 		} else {
  433: 		    splice @file_seq,$i,1,'REMOVE IT PLEASE';
  434: 		}
  435: 	    }
  436: 	    $i++;
  437: 	}
  438: 	for (my $iu=0;$iu<=$#file_seq;$iu++) {
  439: 	    if ($file_seq[$iu]=~m/REMOVE IT PLEASE/) {
  440: 		splice @file_seq,$iu,1;
  441: 	    }
  442: 	}
  443: 	if ($file_seq[-1]=~m/REMOVE IT PLEASE/) {
  444: 	    pop @file_seq;
  445: 	}
  446:         #-- produce an output string
  447: 	for (my $i=0;$i<=$#file_seq;$i++) {
  448:             my $urlp = $file_seq[$i];
  449: 	    $urlp=~s/\/home\/httpd\/html//;	    
  450:             if ($urlp=~m/\.(problem|exam|quiz|assess|survey|form|library)/) {
  451: 		my %moreenv;
  452: 		$moreenv{'form.grade_target'}='tex';
  453: 		&Apache::lonnet::appenv(%moreenv);
  454: 		my $texversion=&Apache::lonnet::ssi($urlp);
  455: 		&Apache::lonnet::delenv('form.grade_target');
  456: 		$result .= $texversion;        
  457: 	    }
  458: 	}	    
  459: 	$result = &additional_cleanup($result);
  460:     } elsif ($choice eq 'All class print') { 
  461:     #-- prints assignments for whole class or for selected students  
  462: 	$selectionmade = 5;
  463:         my (@students,@st_output) = ((),());
  464: 	for (my $i=0; $i<$ENV{'form.numberofstudents'};$i++) {
  465: 	    if ($ENV{'form.whomtoprint'.$i}=~/:/) {
  466: 		push @students,$ENV{'form.whomtoprint'.$i};
  467: 	    }
  468: 	}
  469: 	#where is the primary sequence containing current resource (the same for all students)?
  470: 	my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'});
  471: 	$symbolic =~ m/([^_]+)_/;
  472: 	my $primary_sequence = '/res/'.$1;
  473: 	#opens and analyses the primary sequence file, produces the array of resources
  474: 	my $sequence_file=&Apache::lonnet::filelocation("",$primary_sequence);
  475: 	my $sequencefilecontents=&Apache::lonnet::getfile($sequence_file);
  476: 	my @master_seq = &content_map($sequencefilecontents);
  477:         #loop over students
  478: 	foreach my $person (@students) {
  479: 	    my $current_output = ''; 
  480: 	    my ($usersection,$username,$userdomain) = split /:/,$person;
  481: 	    my $fullname = &Apache::grades::get_fullname($username,$userdomain);
  482:             #goes through all resources, checks if they are available for current student, and produces output 
  483: 	    foreach my $curres (@master_seq)  {
  484: 		$curres =~ s/^"//;
  485: 		$curres =~ s/"$//;
  486:                 if ($curres=~/\w+/) {
  487: 		    my $symb = &Apache::lonnet::symbread($curres);
  488: 		    my ($map,$id,$res_url) = split(/___/,$symb);
  489: 		    if (&Apache::lonnet::allowed('bre',$res_url)) {
  490: 			my $rendered = &Apache::loncommon::get_student_view($symb,$username,$userdomain,
  491:                                                                         $ENV{'request.course.id'},'tex');
  492: 			$current_output .= $rendered;
  493: 		    }
  494: 		}
  495: 	    }
  496: 	    $current_output =~ s/\\begin{document}/\\begin{document}\\noindent\\parbox{\\minipagewidth}{\\noindent\\fbox{\\textbf{$fullname}}\\hskip 1\.4in } \\vskip 5 mm /;
  497: 	    $result .= $current_output;
  498: 	}
  499: 	$result = &additional_cleanup($result);
  500:     } elsif ($choice eq 'Subdirectory print') {      
  501:     #prints selected problems from the subdirectory 
  502: 	$selectionmade = 6;
  503:         my @list_of_files = ();
  504: 	for (my $i=0; $i<$ENV{'form.numberofproblems'};$i++) {
  505: 	    if ($ENV{'form.whattoprint'.$i}=~/^\//) {
  506: 		push @list_of_files,$ENV{'form.whattoprint'.$i};
  507: 	    }
  508: 	}
  509: 	for (my $i=0;$i<=$#list_of_files;$i++) {
  510: 	    my $urlp = $list_of_files[$i];
  511: 	    if ($urlp=~/\//) {
  512: 		my %moreenv;
  513: 		$moreenv{'form.grade_target'}='tex';
  514: 		&Apache::lonnet::appenv(%moreenv);
  515: 		if ($ENV{'request.role'}=~m/^au\./ or $ENV{'request.role'}=~m/^ca\./) { 
  516: 		    $urlp =~ s/\/home\/([^\/]*)\/public_html/\/~$1/; 
  517: 		}
  518: 		my $texversion=&Apache::lonnet::ssi($urlp);
  519: 		&Apache::lonnet::delenv('form.grade_target');
  520: 		$texversion =~ s/(\\begin{document})/$1 {\\tiny\\begin{verbatim}$urlp\\end{verbatim}}/;
  521: 		$result .= $texversion;
  522: 	    }   
  523: 	}
  524: 	$result = &additional_cleanup($result);       	
  525:     }
  526: #-- corrections for the different page formats
  527:     if ($layout eq 'CBI' and $numberofcolumns eq '1') {
  528: 	$result =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{-40pt}\\setlength{\\evensidemargin}{-60pt}\\setlength{\\topmargin}{200pt}\\setlength{\\textwidth}{4\.4in}\\setlength{\\textheight}{6\.8in}\\setlength{\\parindent}{20pt}\\setlength{\\marginparwidth}{90pt}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt} \\begin{document}/;
  529: 	$result =~ s/\$number_of_columns/$number_of_columns/g;
  530:         $laystyle = 'album';
  531:     } elsif ($layout eq 'CBI' and $numberofcolumns eq '2') {
  532: 	$result =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{-40pt}\\setlength{\\evensidemargin}{-60pt}\\setlength{\\topmargin}{200pt}\\setlength{\\textwidth}{4\.4in}\\setlength{\\textheight}{6\.8in}\\setlength{\\parindent}{20pt}\\setlength{\\marginparwidth}{90pt}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt} \\begin{document}/;
  533: 	$result =~ s/\$number_of_columns/$number_of_columns/g;
  534:         $laystyle = 'album';
  535:     } elsif ($layout eq 'CAPA') {
  536:         my $courseidinfo = $ENV{'request.role'};
  537:         $_ = $courseidinfo;
  538:         m/.*\/(.*)/;
  539:         $courseidinfo = $ENV{'course.physnet_'.$1.'.description'};
  540: 	$result =~ s/\\documentclass\[letterpaper\]{article}/\\documentclass{article}/;
  541: 	if ($choice ne 'All class print') { 
  542: 	    $result =~ s/\\begin{document}/\\textheight 25\.9cm\\oddsidemargin = -0\.57in\\evensidemargin = -0\.57in\\textwidth= 9cm\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\begin{document}\\voffset=-1\.8cm\\setcounter{page}{1}\\parbox{\\minipagewidth}{\\noindent\\fbox{\\textbf{$ENV{'environment.firstname'} $ENV{'environment.lastname'}}}\\hskip 1\.4in $courseidinfo} \\vskip 5 mm /;
  543:         } else {	
  544: 	    $result =~ s/\\begin{document}/\\textheight 25\.9cm\\oddsidemargin = -0\.57in\\evensidemargin = -0\.57in\\textwidth= 9cm\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\begin{document}\\voffset=-1\.8cm\\setcounter{page}{1}  \\vskip 5 mm /;
  545: 	}
  546: 	$result =~ s/\\includegraphics{/\\includegraphics\[width=9\.0 cm\]{/g;
  547: #	$result =~ s/\\includegraphics{/\\includegraphics\[width=\\textwidth\]{/g;
  548: #	$result =~ s/(\\end{document})/\\newline\\noindent\\makebox\[9.0cm\]\[b\]{\\hrulefill}\\newline\\noindent\\tiny Dept\. of Physics and Astronomy, MSU\\makebox\[1.5cm\]\[b\]{\\hfill}LON-CAPA\\copyright MSU GNU\/GPL $1/;
  549: 	$result =~ s/(\\end{document})/\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill}\\newline\\noindent\\tiny \\makebox\[1.5cm\]\[b\]{\\hfill}LON-CAPA\\copyright Michigan State University Board of Trustees $1/;
  550: #        $result =~ s/(\\end{longtable}\s*)(\\newline\\noindent\\makebox\[9\.0cm\]\[b\]{\\hrulefill})/$2$1/g;
  551:         $result =~ s/(\\end{longtable}\s*)(\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
  552:         $result =~ s/(\\end{longtable}\s*)\\newline/$1/g;
  553: 	$result =~ s/\$number_of_columns/$number_of_columns/g;
  554:     }
  555:     #changes page's parameters for the one column output 
  556:     if ($ENV{'form.numberofcolumns'} == 1) {
  557: 	$result =~ s/\\textwidth= 9cm/\\textwidth= $ENV{'form.width'}/;
  558: 	$result =~ s/\\textheight 25\.9cm/\\textheight $ENV{'form.height'}/;
  559: 	$result =~ s/\\evensidemargin = -0\.57in/\\evensidemargin= $ENV{'form.leftmargin'}/;
  560: 	$result =~ s/\\oddsidemargin = -0\.57in/\\oddsidemargin= $ENV{'form.leftmargin'}/;
  561:     }
  562: #-- LaTeX corrections     
  563:     my $first_comment = index($result,'<!--',0);
  564:     while ($first_comment != -1) {
  565: 	my $end_comment = index($result,'-->',$first_comment);
  566: 	substr($result,$first_comment,$end_comment-$first_comment+3) = '';
  567: 	$first_comment = index($result,'<!--',$first_comment);
  568:     }
  569:     $result =~ s/^\s+$//gm; #remove empty lines
  570:     $result =~ s/(\s)+/$1/g; #removes more than one empty space
  571:     $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
  572:     $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
  573:     $result =~ s/{\\par }\s*\\\\/\\\\/gm;
  574: 	$result =~ s/\\\\\s+\[/ \[/g;
  575:     $result =~ s/&#952;/\$\\theta\$/g; #converts theta from html into tex
  576:     $result =~ s/\b__+\b/\\makebox\[1 cm\]\[b\]{\\hrulefill}/g;
  577:     #conversion of html characters to LaTeX equivalents
  578:     if ($result =~ m/&(\w+|#\d+);/) {
  579: 	$result = &character_chart($result);
  580:     }
  581:     $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
  582:     $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
  583: #-- writing .tex file in prtspool 
  584:     my $temp_file;
  585:     my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
  586:     unless ($temp_file = Apache::File->new('>'.$filename)) {
  587: 	$r->log_error("Couldn't open $filename for output $!");
  588: 	return SERVER_ERROR; 
  589:     } 
  590:     print $temp_file $result;
  591: $r->print(<<FINALEND);
  592: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle&$numberofcolumns&$selectionmade">
  593: </body>
  594: </html>
  595: FINALEND
  596: }
  597: 
  598: sub character_chart {
  599:     my $result = shift;	
  600:     $result =~ s/&#0?0?7;//g;
  601:     $result =~ s/&#0?0?9;//g;
  602:     $result =~ s/&#0?10;//g;
  603:     $result =~ s/&#0?13;//g;
  604:     $result =~ s/&#0?32;/ /g;
  605:     $result =~ s/&#0?33;/!/g;
  606:     $result =~ s/&#0?34;/"/g;
  607:     $result =~ s/&quot;/"/g; 
  608:     $result =~ s/&#0?35;/\\#/g;
  609: #    $result =~ s/&#0?36;/\\\$/g;
  610:     $result =~ s/&#0?37;/\\%/g; 
  611:     $result =~ s/&#0?38;/\\&/g; 
  612:     $result =~ s/&amp;/\\&/g;
  613:     $result =~ s/&#0?39;/'/g;
  614:     $result =~ s/&#0?40;/(/g;
  615:     $result =~ s/&#0?41;/)/g;
  616:     $result =~ s/&#0?42;/\*/g;
  617:     $result =~ s/&#0?43;/\+/g;
  618:     $result =~ s/&#0?44;/,/g;
  619:     $result =~ s/&#0?45;/-/g;
  620:     $result =~ s/&#0?46;/\./g;
  621:     $result =~ s/&#0?47;/\//g;
  622:     $result =~ s/&#0?48;/0/g;
  623:     $result =~ s/&#0?49;/1/g;
  624:     $result =~ s/&#0?50;/2/g;
  625:     $result =~ s/&#0?51;/3/g;
  626:     $result =~ s/&#0?52;/4/g;
  627:     $result =~ s/&#0?53;/5/g;
  628:     $result =~ s/&#0?54;/6/g;
  629:     $result =~ s/&#0?55;/7/g;
  630:     $result =~ s/&#0?56;/8/g;
  631:     $result =~ s/&#0?57;/9/g;
  632:     $result =~ s/&#0?58;/:/g;
  633:     $result =~ s/&#0?59;/;/g;
  634:     $result =~ s/&#0?60;/\$<\$/g;
  635:     $result =~ s/&lt;/\$<\$/g;
  636:     $result =~ s/&#0?61;/\$=\$/g;
  637:     $result =~ s/&#0?62;/\$>\$/g;
  638:     $result =~ s/&gt;/\$>\$/g;
  639:     $result =~ s/&#0?63;/?/g;
  640: #    $result =~ s/&#0?64;//g;
  641:     $result =~ s/&#0?65;/A/g;
  642:     $result =~ s/&#0?66;/B/g;
  643:     $result =~ s/&#0?67;/C/g;
  644:     $result =~ s/&#0?68;/D/g;
  645:     $result =~ s/&#0?69;/E/g;
  646:     $result =~ s/&#0?70;/F/g;
  647:     $result =~ s/&#0?71;/G/g;
  648:     $result =~ s/&#0?72;/H/g;
  649:     $result =~ s/&#0?73;/I/g;
  650:     $result =~ s/&#0?74;/J/g;
  651:     $result =~ s/&#0?75;/K/g;
  652:     $result =~ s/&#0?76;/L/g;
  653:     $result =~ s/&#0?77;/M/g;
  654:     $result =~ s/&#0?78;/N/g;
  655:     $result =~ s/&#0?79;/O/g;
  656:     $result =~ s/&#0?80;/P/g;
  657:     $result =~ s/&#0?81;/Q/g;
  658:     $result =~ s/&#0?82;/R/g;
  659:     $result =~ s/&#0?83;/S/g;
  660:     $result =~ s/&#0?84;/T/g;
  661:     $result =~ s/&#0?85;/U/g;
  662:     $result =~ s/&#0?86;/V/g;
  663:     $result =~ s/&#0?87;/W/g;
  664:     $result =~ s/&#0?88;/X/g;
  665:     $result =~ s/&#0?89;/Y/g;
  666:     $result =~ s/&#0?90;/Z/g;
  667:     $result =~ s/&#0?91;/[/g;
  668:     $result =~ s/&#0?92;/\\/g;
  669:     $result =~ s/&#0?93;/]/g;
  670: #    $result =~ s/&#0?94;//g;
  671: #    $result =~ s/&#0?95;//g;
  672:     $result =~ s/&#0?96;/`/g;
  673:     $result =~ s/&#0?97;/a/g;
  674:     $result =~ s/&#0?98;/b/g;
  675:     $result =~ s/&#0?99;/c/g;
  676:     $result =~ s/&#100;/d/g;
  677:     $result =~ s/&#101;/e/g;
  678:     $result =~ s/&#102;/f/g;
  679:     $result =~ s/&#103;/g/g;
  680:     $result =~ s/&#104;/h/g;
  681:     $result =~ s/&#105;/i/g;
  682:     $result =~ s/&#106;/j/g;
  683:     $result =~ s/&#107;/k/g;
  684:     $result =~ s/&#108;/l/g;
  685:     $result =~ s/&#109;/m/g;
  686:     $result =~ s/&#110;/n/g;
  687:     $result =~ s/&#111;/o/g;
  688:     $result =~ s/&#112;/p/g;
  689:     $result =~ s/&#113;/q/g;
  690:     $result =~ s/&#114;/r/g;
  691:     $result =~ s/&#115;/s/g;
  692:     $result =~ s/&#116;/t/g;
  693:     $result =~ s/&#117;/u/g;
  694:     $result =~ s/&#118;/v/g;
  695:     $result =~ s/&#119;/w/g;
  696:     $result =~ s/&#120;/x/g;
  697:     $result =~ s/&#121;/y/g;
  698:     $result =~ s/&#122;/z/g;
  699:     $result =~ s/&#123;/\\{/g;
  700:     $result =~ s/&#124;/\|/g;
  701:     $result =~ s/&#125;/\\}/g;
  702:     $result =~ s/&#126;/\~/g;
  703:     $result =~ s/&#130;/,/g;
  704: #    $result =~ s/&#131;//g;
  705:     $result =~ s/&#132;/''/g;
  706:     $result =~ s/&#133;/\$\\ldots\$/g;
  707:     $result =~ s/&#134;/\$\\dagger\$/g;
  708:     $result =~ s/&#135;/\$\\ddagger\$/g;
  709: #    $result =~ s/&#136;//g;
  710: #    $result =~ s/&#137;//g;
  711: #    $result =~ s/&#138;//g;
  712:     $result =~ s/&#139;/\$<\$/g;
  713: #    $result =~ s/&#140;//g;
  714:     $result =~ s/&#145;/`/g;
  715:     $result =~ s/&#146;/'/g;
  716:     $result =~ s/&#147;/``/g;
  717:     $result =~ s/&#148;/''/g;
  718:     $result =~ s/&#149;/\$\\bullet\$/g;
  719: #    $result =~ s/&#150;//g;
  720: #    $result =~ s/&#151;//g;
  721:     $result =~ s/&#152;/~/g;
  722: #    $result =~ s/&#153;//g;
  723: #    $result =~ s/&#154;//g;
  724:     $result =~ s/&#155;/\$>\$/g;
  725:     $result =~ s/&#156;/\\{\\oe\\}/g;
  726:     $result =~ s/&#159;/\\"\\{Y\\}/g;
  727:     $result =~ s/&#160;//g;
  728:     $result =~ s/&nbsp;//g;
  729:     $result =~ s/&#161;/!`/g;
  730:     $result =~ s/&iexcl;/!`/g; #`
  731: #    $result =~ s/&#162;//g;
  732: #    $result =~ s/&cent;//g;
  733:     $result =~ s/&#163;/\\pounds/g; 
  734:     $result =~ s/&pound;/\\pounds/g;
  735: #    $result =~ s/&#164;//g;
  736: #    $result =~ s/&curren;//g;
  737: #    $result =~ s/&#165;//g;
  738: #    $result =~ s/&yen;//g;
  739: #    $result =~ s/&#166;//g;
  740: #    $result =~ s/&brvbar;//g;
  741: #    $result =~ s/&#167;//g;
  742: #    $result =~ s/&sect;//g;
  743: #    $result =~ s/&#168;//g;
  744: #    $result =~ s/&uml;//g;
  745:     $result =~ s/&#169;/\\copyright/g;
  746:     $result =~ s/&copy;/\\copyright/g;
  747: #    $result =~ s/&#170;//g;
  748: #    $result =~ s/&ordf;//g;
  749: #    $result =~ s/&#171;//g;
  750: #    $result =~ s/&laquo;//g;
  751:     $result =~ s/&#172;/\$\\neg\$/g;
  752:     $result =~ s/&not;/\$\\neg\$/g;
  753: #    $result =~ s/&#173;//g;
  754: #    $result =~ s/&shy;//g;
  755: #    $result =~ s/&#174;//g;
  756: #    $result =~ s/&reg;//g;
  757: #    $result =~ s/&#175;//g;
  758: #    $result =~ s/&macr;//g;
  759:     $result =~ s/&#176;/\$^{\\circ}\$/g;
  760:     $result =~ s/&deg;/\$^{\\circ}\$/g;
  761:     $result =~ s/&#177;/\$\\pm\$/g;
  762:     $result =~ s/&plusmn;/\$\\pm\$/g;
  763:     $result =~ s/&#178;/\$^2\$/g;
  764:     $result =~ s/&sup2;/\$^2\$/g;
  765:     $result =~ s/&#179;/\$^3\$/g;
  766:     $result =~ s/&sup3;/\$^3\$/g;
  767: #    $result =~ s/&#180;//g;
  768: #    $result =~ s/&acute;//g;
  769:     $result =~ s/&#181;/\$\\mu\$/g;
  770:     $result =~ s/&micro;/\$\\mu\$/g;
  771:     $result =~ s/&#182;/\\P/g;
  772:     $result =~ s/&para;/\\P/g;
  773:     $result =~ s/&#183;/\$\\cdot\$/g;
  774:     $result =~ s/&middot;/\$\\cdot\$/g;
  775: #    $result =~ s/&#184;//g;
  776: #    $result =~ s/&cedil;//g;
  777:     $result =~ s/&#185;/\$^1\$/g;
  778:     $result =~ s/&sup1;/\$^1\$/g;
  779: #    $result =~ s/&#186;//g;
  780: #    $result =~ s/&ordm;//g;
  781: #    $result =~ s/&#187;//g;
  782: #    $result =~ s/&raquo;//g;
  783: #    $result =~ s/&#188;//g;
  784: #    $result =~ s/&frac14;//g;
  785: #    $result =~ s/&#189;//g;
  786: #    $result =~ s/&frac12;//g;
  787: #    $result =~ s/&#190;//g;
  788: #    $result =~ s/&frac34;//g;
  789:     $result =~ s/&#191;/?`/g;
  790:     $result =~ s/&iquest;/?`/g; 
  791:     $result =~ s/&#192;/\\`{A}/g;
  792:     $result =~ s/&Agrave;/\\`{A}/g; 
  793:     $result =~ s/&#193;/\\'{A}/g; 
  794:     $result =~ s/&Aacute;/\\'{A}/g; 
  795:     $result =~ s/&#194;/\\^{A}/g;
  796:     $result =~ s/&Acirc;/\\^{A}/g;
  797:     $result =~ s/&#195;/\\~{A}/g;
  798:     $result =~ s/&Atilde;/\\~{A}/g;
  799:     $result =~ s/&#196;/\\"{A}/g; 
  800:     $result =~ s/&Auml;/\\"{A}/g; 
  801:     $result =~ s/&#197;/{\\AA}/g;
  802:     $result =~ s/&Aring;/{\\AA}/g;
  803:     $result =~ s/&#198;/{\\AE}/g;
  804:     $result =~ s/&AElig;/{\\AE}/g;
  805: #    $result =~ s/&#199;//g;
  806: #    $result =~ s/&Ccedil;//g;
  807:     $result =~ s/&#200;/\\`{E}/g;
  808:     $result =~ s/&Egrave;/\\`{E}/g;
  809:     $result =~ s/&#201;/\\'{E}/g;
  810:     $result =~ s/&Eacute;/\\'{E}/g;
  811:     $result =~ s/&#202;/\\^{E}/g;
  812:     $result =~ s/&Ecirc;/\\^{E}/g;
  813:     $result =~ s/&#203;/\\`{E}/g;
  814:     $result =~ s/&Euml;/\\`{E}/g;
  815:     $result =~ s/&#204;/\\`{I}/g;
  816:     $result =~ s/&Igrave;/\\`{I}/g; 
  817:     $result =~ s/&#205;/\\'{I}/g; 
  818:     $result =~ s/&Iacute;/\\'{I}/g; 
  819:     $result =~ s/&#206;/\\^{I}/g;
  820:     $result =~ s/&Icirc;/\\^{I}/g;
  821:     $result =~ s/&#207;/\\"{I}/g; 
  822:     $result =~ s/&Iuml;/\\"{I}/g; 
  823: #    $result =~ s/&#208;//g;
  824: #    $result =~ s/&ETH;//g;
  825:     $result =~ s/&#209;/\\~{N}/g;
  826:     $result =~ s/&Ntilde;/\\~{N}/g;
  827:     $result =~ s/&#210;/\\`{O}/g;
  828:     $result =~ s/&Ograve;/\\`{O}/g; 
  829:     $result =~ s/&#211;/\\'{O}/g;
  830:     $result =~ s/&Oacute;/\\'{O}/g; 
  831:     $result =~ s/&#212;/\\^{O}/g;
  832:     $result =~ s/&Ocirc;/\\^{O}/g;
  833:     $result =~ s/&#213;/\\~{O}/g;
  834:     $result =~ s/&Otilde;/\\~{O}/g;
  835:     $result =~ s/&#214;/\\"{O}/g;
  836:     $result =~ s/&Ouml;/\\"{O}/g; 
  837:     $result =~ s/&#215;/\$\\times\$/g;
  838:     $result =~ s/&times;/\$\\times\$/g;
  839:     $result =~ s/&#216;/{\\O}/g;
  840:     $result =~ s/&Oslash;/{\\O}/g;
  841:     $result =~ s/&#217;/\\`{U}/g;
  842:     $result =~ s/&Ugrave;/\\`{U}/g;
  843:     $result =~ s/&#218;/\\'{U}/g;
  844:     $result =~ s/&Uacute;/\\'{U}/g;
  845:     $result =~ s/&#219;/\\^{U}/g;
  846:     $result =~ s/&Ucirc;/\\^{U}/g;
  847:     $result =~ s/&#220;/\\"{U}/g;
  848:     $result =~ s/&Uuml;/\\"{U}/g;
  849:     $result =~ s/&#221;/\\'{Y}/g;
  850:     $result =~ s/&Yacute;/\\'{Y}/g;
  851: #    $result =~ s/&#222;//g;
  852: #    $result =~ s/&THORN;//g;
  853: #    $result =~ s/&#223;//g;
  854: #    $result =~ s/&szlig;//g;
  855:     $result =~ s/&#224;/\\`{a}/g;
  856:     $result =~ s/&agrave;/\\`{a}/g;
  857:     $result =~ s/&#225;/\\'{a}/g;
  858:     $result =~ s/&aacute;/\\'{a}/g;
  859:     $result =~ s/&#226;/\\^{a}/g;
  860:     $result =~ s/&acirc;/\\^{a}/g;
  861:     $result =~ s/&#227;/\\~{a}/g;
  862:     $result =~ s/&atilde;/\\~{a}/g;
  863:     $result =~ s/&#228;/\\"{a}/g;
  864:     $result =~ s/&auml;/\\"{a}/g;
  865:     $result =~ s/&#229;/{\\aa}/g;
  866:     $result =~ s/&aring;/{\\aa}/g;
  867:     $result =~ s/&#230;/{\\ae}/g;
  868:     $result =~ s/&aelig;/{\\ae}/g;
  869: #    $result =~ s/&#231;//g;
  870: #    $result =~ s/&ccedil;//g;
  871:     $result =~ s/&#232;/\\`{e}/g;
  872:     $result =~ s/&egrave;/\\`{e}/g;
  873:     $result =~ s/&#233;/\\'{e}/g;
  874:     $result =~ s/&eacute;/\\'{e}/g;
  875:     $result =~ s/&#234;/\\^{e}/g;
  876:     $result =~ s/&ecirc;/\\^{e}/g;
  877:     $result =~ s/&#235;/\\"{e}/g;
  878:     $result =~ s/&euml;/\\"{e}/g;
  879:     $result =~ s/&#236;/\\`{i}/g;
  880:     $result =~ s/&igrave;/\\`{i}/g;
  881:     $result =~ s/&#237;/\\'{i}/g;
  882:     $result =~ s/&iacute;/\\'{i}/g;
  883:     $result =~ s/&#238;/\\^{i}/g;
  884:     $result =~ s/&icirc;/\\^{i}/g;
  885:     $result =~ s/&#239;/\\"{i}/g;
  886:     $result =~ s/&iuml;/\\"{i}/g;
  887: #    $result =~ s/&#240;//g;
  888: #    $result =~ s/&eth;//g;
  889:     $result =~ s/&#241;/\\~{n}/g;
  890:     $result =~ s/&ntilde;/\\~{n}/g;
  891:     $result =~ s/&#242;/\\`{o}/g;
  892:     $result =~ s/&ograve;/\\`{o}/g;
  893:     $result =~ s/&#243;/\\'{o}/g;
  894:     $result =~ s/&oacute;/\\'{o}/g;
  895:     $result =~ s/&#244;/\\^{o}/g;
  896:     $result =~ s/&ocirc;/\\^{o}/g;
  897:     $result =~ s/&#245;/\\~{o}/g;
  898:     $result =~ s/&otilde;/\\~{o}/g;
  899:     $result =~ s/&#246;/\\"{o}/g;
  900:     $result =~ s/&ouml;/\\"{o}/g;
  901:     $result =~ s/&#247;/\$\\div\$/g;
  902:     $result =~ s/&divide;/\$\\div\$/g;
  903:     $result =~ s/&#248;/{\\o}/g;
  904:     $result =~ s/&oslash;/{\\o}/g;
  905:     $result =~ s/&#249;/\\`{u}/g; 
  906:     $result =~ s/&ugrave;/\\`{u}/g;
  907:     $result =~ s/&#250;/\\'{u}/g;
  908:     $result =~ s/&uacute;/\\'{u}/g;
  909:     $result =~ s/&#251;/\\^{u}/g;
  910:     $result =~ s/&ucirc;/\\^{u}/g;
  911:     $result =~ s/&#252;/\\"{u}/g;
  912:     $result =~ s/&uuml;/\\"{u}/g;
  913:     $result =~ s/&#253;/\\'{y}/g;
  914:     $result =~ s/&yacute;/\\'{y}/g;
  915: #    $result =~ s/&#254;//g;
  916: #    $result =~ s/&thorn;//g;
  917:     $result =~ s/&#255;/\\"{y}/g;
  918:     $result =~ s/&yuml;/\\"{y}/g;
  919:     return $result;
  920: }
  921: 
  922: 
  923: #'"`
  924: 
  925: sub additional_cleanup {
  926:     my $result = shift;	
  927:     my $first_app = index($result,'\documentclass',0);
  928:     $first_app = index($result,'\documentclass',$first_app+5);
  929:     while ($first_app != -1) {
  930: 	my $second_app = index($result,'begin{document}',$first_app);
  931: 	$first_app = rindex($result,'\end{document}',$first_app);
  932: 	substr($result,$first_app,$second_app-$first_app+15) = '\vskip 3 mm';
  933: 	$first_app = index($result,'\documentclass',$first_app+5);
  934:     }
  935:     return $result;
  936: }
  937: sub page_cleanup {
  938:     my $result = shift;	
  939:     $_ = $result;
  940:     m/\\end{document}(\d*)$/;
  941:     my $number_of_columns = $1;
  942:     my $insert = '{';
  943:     for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
  944:     $insert .= '}';
  945:     $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE/$1$insert/g;
  946:     $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
  947:     $result =~ s/(\\vskip\s*\d+\s*mm)/}\\\\\\parbox{\\minipagewidth}{/g;
  948:     $result =~ s/\\parbox{\\minipagewidth}{}\s*\\\\\s*(\\parbox{\\minipagewidth})/$1/g;
  949:     $result =~ s/\\parbox{\\minipagewidth}{\s*\\\\\\\\/\\parbox{\\minipagewidth}{/g;
  950:     return $result,$number_of_columns;
  951: }
  952: 
  953: sub content_map {
  954: #-- find a list of files to print
  955:     my $map_string = shift;
  956:     my @number_seq = ();
  957:     my @file_seq = ();
  958:     my $startlink = index($map_string,'<link',0);
  959:     my $endlink = index($map_string,'</link>',$startlink);
  960:     my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
  961:     $_ = $chunk;
  962:     m/from=\"(\d+)\"/;
  963:     push @number_seq,$1;
  964:     while ($startlink != -1) {
  965: 	$endlink = index($map_string,'</link>',$startlink);
  966: 	$chunk = substr($map_string,$startlink,$endlink-$startlink+7);
  967: 	substr($map_string,$startlink,$endlink-$startlink+7) = '';
  968: 	$_ = $chunk;
  969:         m/to=\"(\d+)\"/;
  970: 	push @number_seq,$1;
  971: 	$startlink = index($map_string,'from="'.$1.'"',0);
  972: 	$startlink = rindex($map_string,'<link ',$startlink);
  973:     }
  974:     my $stalink = index($map_string,' to="'.$number_seq[0].'"',0);
  975:     while ($stalink != -1) {
  976: 	$startlink = rindex($map_string,'<link ',$stalink);
  977: 	$endlink = index($map_string,'</link>',$startlink);
  978: 	$chunk = substr($map_string,$startlink,$endlink-$startlink+7);
  979: 	substr($map_string,$startlink,$endlink-$startlink+7) = '';
  980: 	$_ = $chunk;
  981:         m/from=\"(\d+)\"/;
  982: 	unshift @number_seq,$1;
  983: 	$stalink = index($map_string,' to="'.$number_seq[0].'"',0);
  984:     }
  985:     for (my $i=0;$i<=$#number_seq;$i++) {
  986: 	$stalink = index($map_string,' id="'.$number_seq[$i].'"',0);
  987:         {    
  988: 	    my $ahed1 = index($map_string,'src="',$stalink);
  989: 	    my $ahed2 = index($map_string,'</resource>',$stalink);
  990: 	    if ($ahed1 != -1) {
  991: 		if ($ahed1 < $ahed2) {
  992: 		    $startlink = $ahed1;
  993: 		} else {
  994: 		    $startlink = rindex($map_string,'src="',$stalink);
  995: 		}
  996: 	    } else {
  997: 		$startlink = rindex($map_string,'src="',$stalink);
  998: 	    }
  999: 
 1000: 	}
 1001: 	$startlink = index($map_string,'"',$startlink);
 1002: 	$endlink = index($map_string,'"',$startlink+1);
 1003: 	$chunk = substr($map_string,$startlink,$endlink-$startlink+1);
 1004: 	push @file_seq,$chunk;
 1005:     }
 1006:     return @file_seq;
 1007: }
 1008: 
 1009: 
 1010: sub details_for_menu {
 1011: 
 1012:     my $name_of_resourse = $hash{'title_'.$hash{'ids_'.$ENV{'form.postdata'}}};
 1013:     my $symbolic = &Apache::lonnet::symbread($ENV{'form.postdata'});
 1014:     $symbolic =~ m/([^_]+)_/;
 1015:     my $primary_sequence = '/res/'.$1;
 1016:     my $name_of_sequence = $hash{'title_'.$hash{'ids_'.$primary_sequence}};
 1017: 
 1018:     return $name_of_resourse,$name_of_sequence;
 1019: 
 1020: }
 1021: 
 1022: 
 1023: sub handler {
 1024: 
 1025:     my $r = shift;
 1026:     $r->content_type('text/html');
 1027:     $r->send_http_header;
 1028:     $r->print(&Apache::loncommon::bodytag("Printing"));
 1029: 
 1030:     if ($ENV{'request.course.id'}) {
 1031: 	my $fn=$ENV{'request.course.fn'};
 1032: 	tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);
 1033:     }
 1034: 
 1035: #-- start form
 1036:     &headerform($r);
 1037: #-- menu for output
 1038:     unless  ($ENV{'form.phase'}) {
 1039: 	&menu_for_output($r);
 1040:     }
 1041: #-- additional menu for class printing
 1042:      if ($ENV{'form.phase'} eq 'two') {
 1043: 	 if($ENV{'form.choice'} eq 'All class print') {
 1044: 	     &additional_class_menu($r);
 1045: 	 } elsif($ENV{'form.choice'} eq 'Subdirectory print') {
 1046: 	     &problem_choice_menu($r);
 1047: 	 } else {
 1048: 	     $ENV{'form.phase'} = 'three';
 1049: 	 }
 1050:      }
 1051: #-- additional menu for page layout (one column case)
 1052:     if ($ENV{'form.phase'} eq 'three') {
 1053: 	if($ENV{'form.numberofcolumns'} == 1) {
 1054: 	    &additional_print_menu($r);
 1055: 	} else {
 1056: 	    $ENV{'form.phase'} = 'four';
 1057: 	}
 1058:     }
 1059: #-- core part 
 1060:     if ($ENV{'form.phase'} eq 'four') {
 1061: 	&output_data($r);
 1062:     }	
 1063:     untie %hash;
 1064:     return OK;
 1065:    
 1066: } 
 1067: 
 1068: 
 1069: 1;
 1070: __END__
 1071: 
 1072: 
 1073: 
 1074: 
 1075: #### Test block
 1076: #    my $ere;
 1077: #    foreach $ere (%ENV) {
 1078: #	$result .= ' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n";
 1079: #    }
 1080: ####

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