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File:  [LON-CAPA] / loncom / interface / lonprintout.pm
Revision 1.111: download - view: text, annotated - select for diffs
Tue Feb 4 22:22:07 2003 UTC (21 years, 4 months ago) by sakharuk
Branches: MAIN
CVS tags: HEAD
 I fixed my owd very stupid bug and now I can print problems from the whole course. Sorry for this bug.

    1: # The LearningOnline Network
    2: # Printout
    3: #
    4: # $Id: lonprintout.pm,v 1.111 2003/02/04 22:22:07 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 Apache::lonnavmaps;
   52: use POSIX qw(strftime);
   53: use GDBM_File;
   54: 
   55: 
   56: my %hash;
   57: my $LaTeXwidth = 0;
   58: 
   59: sub headerform {
   60:     my $r = shift;
   61:     $r->print(<<ENDHEADER);
   62: <html>
   63: <head>
   64: <title>LON-CAPA output for printing</title>
   65: </head>
   66: <body bgcolor="FFFFFF">
   67: <form method="post" enctype="multipart/form-data" action="/adm/printout" name="printform">
   68: ENDHEADER
   69: 
   70:     if ($ENV{'form.postdata'}=~m|^/res/|) {
   71: 	$r->print(<<ENDHEADER1);
   72: <b>Path to current document: </b><tt>$ENV{'form.postdata'}</tt><p>
   73: ENDHEADER1
   74:     }
   75: }
   76: 
   77: 
   78: sub menu_for_output {
   79:     my $r = shift;
   80:     my ($title_for_single_resource,$title_for_sequence,$title_for_main_map) = &details_for_menu;
   81:     my $assignment = $title_for_sequence;
   82:     if ($title_for_single_resource ne '') {$title_for_single_resource = '"'.$title_for_single_resource.'"';}
   83:     if ($title_for_sequence ne '') {$title_for_sequence = '"'.$title_for_sequence.'"';}
   84:     if ($title_for_main_map ne '') {$title_for_main_map = '"'.$title_for_main_map.'"';}
   85:     $ENV{'form.postdata'} =~ s|http://[^/]+||;
   86:     my $subdir_to_print = $ENV{'form.postdata'};
   87:     $subdir_to_print =~ m/\/([^\/]+)$/;
   88:     $subdir_to_print =~ s/\Q$1\E//;
   89:     $r->print(<<ENDMENUOUT1);
   90: <h1>What do you want to print? Make a choice.</h1><br />
   91: <input type="hidden" name="phase" value="two">
   92: <input type="hidden" name="url" value="$ENV{'form.postdata'}">
   93: <input type="hidden" name="assignment" value="$assignment">
   94: <input type="radio" name="choice" value="Standard LaTeX output for current document" checked>  Current document <b>$title_for_single_resource</b>
   95: (prints what you just saw on the screen)<br />
   96: ENDMENUOUT1
   97:     if ($ENV{'form.postdata'}=~/\/res\//) {
   98: 	$r->print(<<ENDMENUOUT2);
   99: <input type="radio" name="choice" value="Standard LaTeX output for the primary sequence">  Problem(s) from <b>$title_for_sequence</b><br />
  100: <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>$title_for_sequence</b><br />
  101: ENDMENUOUT2
  102:     }
  103:     if (($ENV{'request.role'}=~m/^cc\./ or $ENV{'request.role'}=~m/^in\./ or $ENV{'request.role'}=~m/^ta\./) and ($ENV{'form.postdata'}=~/\/res\//)) { 
  104: 	$r->print(<<ENDMENUOUT6);
  105: <input type="radio" name="choice" value="Standard LaTeX output for the top level sequence">  All problems in this course (<b>warning:</b> this may be time consuming) <br />
  106: <br />
  107: <input type="radio" name="choice" value="All class print">  All problems from <b>$title_for_sequence</b> for selected students<br /><br />
  108: ENDMENUOUT6
  109:     }
  110:       my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'});
  111:       $subdirtoprint =~ s/\/[^\/]+$//;
  112:       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)/)) {
  113: 	  $r->print(<<ENDMENUOUT4);
  114:   <input type="radio" name="choice" value="Subdirectory print">  Problems from current subdirectory <b>$subdir_to_print</b><br />
  115: ENDMENUOUT4
  116:       }
  117:     $r->print(<<ENDMENUOUT5);
  118: <br /><hr /><br />
  119: <h1>And what page format do you prefer?</h1>
  120: <table>
  121:  <tr>
  122:    <td>
  123:      <input type="radio" name="layout" value="CBI"> Landscape <br />
  124:      <input type="radio" name="layout" value="CAPA" checked>  Portrait <br />
  125:    </td>
  126:    <td>&nbsp;</td>
  127:    <td rawspan="2">
  128:      Number of columns: <select name="numberofcolumns">
  129:                          <option> 1 </option>
  130:                          <option selected> 2 </option>
  131:                         </select> 
  132:    </td>
  133:    <td rawspan="2">
  134:      Paper size (format [width x height]): <select name="papersize">
  135:                                             <option selected> Letter [8 1/2x11 in] </option>
  136:                                             <option> Legal [8 1/2x14 in] </option>
  137:                                             <option> Ledger/Tabloid [11x17 in] </option>
  138:                                             <option> Executive [7 1/2x10 in] </option>
  139:                                             <option> A2 [420x594 mm] </option>
  140:                                             <option> A3 [297x420 mm] </option>
  141:                                             <option> A4 [210x297 mm] </option>
  142:                                             <option> A5 [148x210 mm] </option>
  143:                                             <option> A6 [105x148 mm] </option>
  144:                                            </select> 
  145:    </td>
  146:  </tr>
  147: </table>
  148: </br> 
  149: <input type="submit" value="Submit your choice">
  150: ENDMENUOUT5
  151: }
  152: 
  153: 
  154: sub sequence_content_menu {
  155:     my ($key_to,$r) = @_;
  156:     my $primary_sequence;
  157:     my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'});
  158:     my @sequence = split('___',$symbolic);
  159:     if ($sequence[0]=~/^uploaded/) {$primary_sequence = '/'.$sequence[0];} 
  160:       else {$primary_sequence = '/res/'.$sequence[0];} 
  161:     my @master_seq = &coming_from_hash($primary_sequence,$sequence[0]);
  162:     my @titles_master_seq = &titles_coming_from_hash($primary_sequence,$sequence[0]);
  163:     foreach my $entity (@titles_master_seq) {$entity=~/^(.*)&&/; $entity=$1}
  164:     my @master_seq_view = @master_seq;
  165:     if ($ENV{'user.adv'}) {
  166:       for (my $i=0;$i<=$#master_seq_view;$i++) {
  167: 	 $master_seq_view[$i]=~/___\d+___(.+)$/;
  168: 	 $master_seq_view[$i]='/'.$1;
  169:       }
  170:     } else {
  171:       for (my $i=0;$i<=$#master_seq_view;$i++) {
  172:          $master_seq_view[$i]=' ';
  173:       }
  174:     }
  175:     $r->print(<<ENDMENUOUT1);
  176: <input type="hidden" name="url" value="$ENV{'form.url'}">
  177: <input type="hidden" name="choice" value="$ENV{'form.choice'}">
  178: <input type="hidden" name="layout" value="$ENV{'form.layout'}">
  179: <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">
  180: <input type="hidden" name="assignment" value="$ENV{'form.assignment'}">
  181: <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
  182: <h1>Mark item(s) which you want to print</h1>
  183: <script>
  184:     function checkall() {
  185: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  186:             if 
  187:           (document.forms.printform.elements[i].name.indexOf('whatfile')==0) {
  188: 	      document.forms.printform.elements[i].checked=true;
  189:             }
  190:         }
  191:     }
  192:     function uncheckall() {
  193: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  194:             if 
  195:           (document.forms.printform.elements[i].name.indexOf('whatfile')==0) {
  196: 	      document.forms.printform.elements[i].checked=false;
  197:             }
  198:         }
  199:     }
  200: </script>
  201: <input type=button onClick="checkall()" value="Check All">&nbsp;
  202: <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;
  203: <input type="submit" value="Submit">
  204: <p>
  205: ENDMENUOUT1
  206:     my $inc=0; 
  207:     for (my $i=0;$i<=$#master_seq_view;$i++) {
  208:       if ($key_to==1 && $master_seq[$i]=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
  209: 	$r->print('<br /><input type=checkbox name="whatfile'.$inc.'" value="'.$master_seq[$i].'"> '."\n".'<b>'.
  210:                   $titles_master_seq[$i].'</b>&nbsp;&nbsp;&nbsp;<small>'.$master_seq_view[$i].'</small>');
  211:         $inc++;
  212:     } elsif ($key_to==0 && $master_seq[$i]=~/\.(problem|exam|quiz|assess|survey|form|library|xml|htm|html|page)$/) {
  213: 	$r->print('<br /><input type=checkbox name="whatfile'.$inc.'" value="'.$master_seq[$i].'"> '."\n".'<b>'.
  214:                   $titles_master_seq[$i].'</b>&nbsp;&nbsp;&nbsp;<small>'.$master_seq_view[$i].'</small>');
  215:         $inc++;
  216:       }
  217:     }
  218:     $r->print(<<ENDMENUOUT2);
  219: <br /><br />
  220: <input type="hidden" name="numberoffiles" value="$inc">
  221: <input type="hidden" name="phase" value="three">
  222: <input type=button onClick="checkall()" value="Check All">&nbsp;
  223: <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;
  224: <input type="submit" value="Submit">
  225: ENDMENUOUT2
  226: 
  227: }
  228: 
  229: 
  230: sub problem_choice_menu {
  231:     my $r = shift;
  232:     my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'});
  233:     $subdirtoprint =~ s/\/[^\/]+$//;
  234:     my @list_of_files = ();
  235:     my @content_directory = ();
  236:     if ($subdirtoprint =~ m|/home/([^/]+)/public_html|) {
  237: 	#localmachine CSTR space
  238: 	my $user=$1;
  239: 	my $domain=$Apache::lonnet::perlvar{'lonDefDomain'};
  240: 	@content_directory = &Apache::lonnet::dirlist($subdirtoprint,
  241: 						      $domain, $user,'');
  242:     } else {
  243:         #local library server res space (allows to print only from the own library server)
  244: 	@content_directory = &Apache::lonnet::dirlist($subdirtoprint,$ENV{'user.domain'}, $ENV{'user.name'},'');
  245:     }
  246:     for (my $iy=0;$iy<=$#content_directory;$iy++) {
  247: 	my @tempo_array = split(/&/,$content_directory[$iy]);
  248: 	if ($tempo_array[0] =~ m/^[^\.]+\.(problem|exam|quiz|assess|survey|form|library)$/) {
  249: 	    push(@list_of_files,$tempo_array[0]);
  250: 	}
  251:     }
  252:     $subdirtoprint =~ s/\/$//;
  253:     for (my $i=0;$i<=$#list_of_files;$i++) {
  254: 	$list_of_files[$i] = $subdirtoprint.'/'.$list_of_files[$i];
  255:     }
  256:     $r->print(<<ENDMENUOUT1);
  257: <input type="hidden" name="url" value="$ENV{'form.url'}">
  258: <input type="hidden" name="choice" value="$ENV{'form.choice'}">
  259: <input type="hidden" name="layout" value="$ENV{'form.layout'}">
  260: <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
  261: <h1>Mark problems which you want to print</h1>
  262: <script>
  263:     function checkall() {
  264: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  265:             if 
  266:           (document.forms.printform.elements[i].name.indexOf('whattoprint')==0) {
  267: 	      document.forms.printform.elements[i].checked=true;
  268:             }
  269:         }
  270:     }
  271: 
  272: 
  273:     function uncheckall() {
  274: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  275:             if 
  276:           (document.forms.printform.elements[i].name.indexOf('whattoprint')==0) {
  277: 	      document.forms.printform.elements[i].checked=false;
  278:             }
  279:         }
  280:     }
  281: </script>
  282: <input type=button onClick="checkall()" value="Check All">&nbsp;
  283: <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;
  284: <input type="submit" value="Submit">
  285: <p>
  286: ENDMENUOUT1
  287:     my $i=0;
  288:     foreach my $file (sort @list_of_files) {
  289: 	$r->print('<br /><input type=checkbox name="whattoprint'.$i.'" value="'.$file.'"> '.
  290:                   $file);
  291: 	$i++;
  292:     }
  293:     $r->print(<<ENDMENUOUT2);
  294: <br /><br />
  295: <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">
  296: <input type="hidden" name="numberofproblems" value="$i">
  297: <input type="hidden" name="phase" value="three">
  298: <input type=button onClick="checkall()" value="Check All">&nbsp;
  299: <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;
  300: <input type="submit" value="Submit">
  301: ENDMENUOUT2
  302: }
  303: 
  304: 
  305: sub additional_class_menu {
  306:     my $r = shift;
  307:     $r->print(<<ENDMENUOUT1);
  308: <input type="hidden" name="url" value="$ENV{'form.url'}">
  309: <input type="hidden" name="choice" value="$ENV{'form.choice'}">
  310: <input type="hidden" name="layout" value="$ENV{'form.layout'}">
  311: <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
  312: <input type="hidden" name="assignment" value="$ENV{'form.assignment'}">
  313: <h1>Select student(s) whose assignment you want to print</h1>
  314: ENDMENUOUT1
  315:     my %courselist=&Apache::lonnet::dump(
  316:                    'classlist',
  317: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
  318: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
  319:     my $now=time;
  320:     $r->print(<<ENDDISHEADER);
  321: <script>
  322:     function checkall() {
  323: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  324:             if 
  325:           (document.forms.printform.elements[i].name.indexOf('whomtoprint')==0) {
  326: 	      document.forms.printform.elements[i].checked=true;
  327:             }
  328:         }
  329:     }
  330: 
  331:     function checksec() {
  332: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  333:             if 
  334:           (document.forms.printform.elements[i].value.indexOf
  335:            (document.forms.printform.chksec.value)==0) {
  336: 	      document.forms.printform.elements[i].checked=true;
  337:             }
  338:         }
  339:     }
  340: 
  341:     function uncheckall() {
  342: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  343:             if 
  344:           (document.forms.printform.elements[i].name.indexOf('whomtoprint')==0) {
  345: 	      document.forms.printform.elements[i].checked=false;
  346:             }
  347:         }
  348:     }
  349: </script>
  350: <input type=button onClick="checkall()" value="Check All">&nbsp;
  351: <input type=button onClick="checksec()" value="Type Section/Group then click">
  352: <input type=text size=5 name=chksec>&nbsp;
  353: <input type=button onClick="uncheckall()" value="Uncheck">
  354: <p>
  355: ENDDISHEADER
  356:     my $i = 0;
  357:     foreach (sort keys %courselist) {
  358:         my ($end,$start)=split(/\:/,$courselist{$_});
  359:         my $active=1;
  360:         if (($end) && ($now>$end)) { $active=0; }
  361:         if ($active) {
  362:            my ($sname,$sdom)=split(/\:/,$_);
  363:            my %reply=&Apache::lonnet::get('environment',
  364:               ['firstname','middlename','lastname','generation'],
  365:               $sdom,$sname);
  366:            my $section=&Apache::lonnet::usection
  367: 	       ($sdom,$sname,$ENV{'request.course.id'});
  368:            $r->print(
  369:         '<br /><input type=checkbox name="whomtoprint'.$i.'" value="'.$section.':'.$_.'"> '.
  370: 		      $reply{'firstname'}.' '. 
  371:                       $reply{'middlename'}.' '.
  372:                       $reply{'lastname'}.' '.
  373:                       $reply{'generation'}.
  374:                       ' ('.$_.') '.$section);
  375: 	   $i++;
  376:         } 
  377:     }
  378:     $r->print(<<ENDMENUOUT2);
  379: <br />Number of blank pages to add: <select name="addedpages"><option selected>0</option>
  380:                                                               <option>1</option>
  381:                                                               <option>2</option>
  382:                                                               <option>3</option>
  383:                                     </select>
  384: <br /> 
  385: <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">
  386: <input type="hidden" name="numberofstudents" value="$i">
  387: <input type="hidden" name="phase" value="three">
  388: <input type="submit" value="Submit">
  389: ENDMENUOUT2
  390: }
  391: 
  392: 
  393: sub additional_print_menu { 
  394:     my $r = shift;
  395:     my $what_to_print = '';
  396:     for (my $i=0; $i<$ENV{'form.numberofstudents'};$i++) {
  397: 	$what_to_print .= '<input type="hidden" name="whomtoprint'.$i.'" value="'.$ENV{'form.whomtoprint'.$i}.'">';
  398:     }
  399:     for (my $i=0; $i<$ENV{'form.numberofproblems'};$i++) {
  400: 	$what_to_print .= '<input type="hidden" name="whattoprint'.$i.'" value="'.$ENV{'form.whattoprint'.$i}.'">';
  401:     }
  402:     for (my $i=0; $i<$ENV{'form.numberoffiles'};$i++) {
  403: 	$what_to_print .= '<input type="hidden" name="whatfile'.$i.'" value="'.$ENV{'form.whatfile'.$i}.'">';
  404:     }
  405:     $r->print(<<ENDMENUOUT);
  406:     $what_to_print
  407: <input type="hidden" name="url" value="$ENV{'form.url'}">
  408: <input type="hidden" name="choice" value="$ENV{'form.choice'}">
  409: <input type="hidden" name="layout" value="$ENV{'form.layout'}">
  410: <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">
  411: <input type="hidden" name="numberofstudents" value="$ENV{'form.numberofstudents'}">
  412: <input type="hidden" name="numberofproblems" value="$ENV{'form.numberofproblems'}">
  413: <input type="hidden" name="numberoffiles" value="$ENV{'form.numberoffiles'}">
  414: <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
  415: <input type="hidden" name="assignment" value="$ENV{'form.assignment'}">
  416: <input type="hidden" name="addedpages" value="$ENV{'form.addedpages'}">
  417: Define one column layout parameters: <br />
  418: <b>Width</b>: <input type="text" name="width" width="8" value="9cm"> <br />
  419: <b>Height</b>: <input type="text" name="height" width="8" value="25.9cm"> <br />
  420: <b>Left margin</b>: <input type="text" name="leftmargin" width="8" value="-0.57in"> <br />
  421: <input type="hidden" name="phase" value="four">
  422: <input type="submit" value="Submit">
  423: </form>
  424: </body>
  425: </html>
  426: ENDMENUOUT
  427: }
  428: 
  429: 
  430: sub output_data {
  431:     my $r = shift;
  432:     $r->print(<<ENDPART);
  433: <html>
  434: <head>
  435: <title>LON-CAPA output for printing</title>
  436: </head>
  437: <body bgcolor="FFFFFF">
  438: <hr>
  439: ENDPART
  440: 
  441:     my $choice = $ENV{'form.choice'};
  442:     my $layout = $ENV{'form.layout'};
  443:     my $numberofcolumns = $ENV{'form.numberofcolumns'};  
  444:     my $papersize = $ENV{'form.papersize'};          
  445:     my $laystyle = 'book';
  446:     my $assignment =  $ENV{'form.assignment'};
  447:     if ($choice eq 'Subdirectory print') {
  448: 	if ($ENV{'form.layout'} eq '') {$layout = 'CAPA';}
  449: 	if ($ENV{'form.papersize'} eq '') {$papersize = 'Letter [8 1/2x11 in]';}
  450: 	if ($ENV{'form.numberofcolumns'} eq '') {$numberofcolumns = 2;}
  451:     }
  452:     if (($choice eq 'Standard LaTeX output for current document') &&
  453: 	($ENV{'form.url'}=~m|^/~|)) {
  454: 	if ($ENV{'form.layout'} eq '') {$layout = 'CAPA';}
  455: 	if ($ENV{'form.papersize'} eq '') {$papersize = 'Letter [8 1/2x11 in]';}
  456: 	if ($ENV{'form.numberofcolumns'} eq '') {$numberofcolumns = 2;}
  457:     }
  458:     my $result = '';
  459:     my $number_of_columns = 1; #used only for pages to determine the width of the cell
  460:     my $selectionmade = '';
  461:     my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$layout,$numberofcolumns);
  462:     if ($numberofcolumns == 1) {
  463: 	$textwidth=$ENV{'form.width'};
  464: 	$textheight=$ENV{'form.height'};
  465:     }
  466:     my $LaTeXwidth; 
  467:     if ($textwidth=~/(\d+\s*cm)/) {
  468: 	$LaTeXwidth = $1*10;
  469:     } elsif ($textwidth=~/(\d+\s*mm)/) {
  470: 	$LaTeXwidth = $1;
  471:     }
  472:     if ($choice eq 'Standard LaTeX output for current document') {
  473:       #-- single document - problem, page, html, xml, ...  
  474:       $selectionmade = 1;
  475:       if ($ENV{'form.url'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
  476:         my %moreenv;
  477:         $moreenv{'form.grade_target'}='tex';
  478:         if (&Apache::lonnet::allowed('bre',$ENV{'form.url'})) {
  479: 	  $ENV{'form.url'}=~s/http:\/\/[^\/]+//;
  480:         }
  481:         $moreenv{'request.filename'}=$ENV{'form.url'};
  482:         $moreenv{'form.textwidth'}=$LaTeXwidth;
  483:         &Apache::lonnet::appenv(%moreenv);
  484:         my $texversion=&Apache::lonnet::ssi($ENV{'form.url'});
  485:         &Apache::lonnet::delenv('form.grade_target','form.textwidth','form.counter');
  486:         $result .= $texversion;
  487:         if ($ENV{'form.url'}=~m/\.page\s*$/) {
  488: 	  ($result,$number_of_columns) = &page_cleanup($result);
  489:         }
  490:       } else {
  491: 	  $result='\documentclass[letterpaper]{article}\usepackage{calc}\begin{document}Printout of this type of document is currently not supported: ';
  492: 	  if ($ENV{'form.url'}=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) {
  493: 	      $result.=$1;
  494: 	  } else {
  495: 	      $result.=$ENV{'form.url'};
  496: 	  }
  497: 	  $result.=' \end{document}'
  498:       }
  499:     } elsif ($choice eq 'Standard LaTeX output for the primary sequence' or 
  500:              $choice eq 'Standard LaTeX output for whole primary sequence') {
  501:       #-- minimal sequence to which the current document belongs
  502:         #-- where is the primary sequence containing file?
  503:         my @master_seq = ();
  504: 	for (my $i=0; $i<$ENV{'form.numberoffiles'};$i++) {
  505: 	    if ($ENV{'form.whatfile'.$i}=~/\S/) {
  506: 		push @master_seq,$ENV{'form.whatfile'.$i};
  507: 	    }
  508: 	}
  509:         #-- produce an output string
  510: 	my $flag_latex_header_remove = 'NO';
  511: 	my $flag_page_in_sequence = 'NO';
  512: 	for (my $i=0;$i<=$#master_seq;$i++) {
  513:            my ($urlp,$symb) = split /&&/, $master_seq[$i];
  514: 	    if ($choice eq 'Standard LaTeX output for the primary sequence') {
  515:               $selectionmade = 2;
  516: 	    } elsif ($choice eq 'Standard LaTeX output for whole primary sequence') {
  517:               $selectionmade = 3;
  518: 	    }
  519: 	   my %moreenv;
  520: 	   $moreenv{'form.grade_target'}='tex';
  521: 	   $moreenv{'form.textwidth'}=$LaTeXwidth;
  522: 	   &Apache::lonnet::appenv(%moreenv);
  523: 	   #&Apache::lonnet::logthis("Trying to get $urlp with symb $symb");
  524: 	   my $texversion=&Apache::lonnet::ssi($urlp,('symb'=>$symb));
  525: 	   &Apache::lonnet::delenv('form.grade_target','form.textwidth');
  526: 	   if ($urlp =~ m/\.page/) {
  527: 	     ($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
  528: 	     if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;} 
  529: 	     $texversion =~ s/\\end{document}\d*/\\end{document}/;
  530: 	     $flag_page_in_sequence = 'YES';
  531: 	   } 
  532: 	   if ($flag_latex_header_remove ne 'NO') {
  533: 	     $texversion = &latex_header_footer_remove($texversion);
  534: 	   } else {
  535: 	     $texversion =~ s/\\end{document}//;
  536: 	   }
  537: 	   $result .= $texversion;         
  538: 	   $flag_latex_header_remove = 'YES';   
  539: 	}
  540: 	&Apache::lonnet::delenv('form.counter');
  541: 	if ($flag_page_in_sequence eq 'YES') {$result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;}	
  542: 	$result .= '\end{document}';
  543:     }  elsif ($choice eq 'Standard LaTeX output for the top level sequence') {
  544:         # where is the main sequence of the course?
  545: 	$selectionmade = 4;
  546: 	my $main_seq;
  547: 	if ($ENV{'request.course.uri'}=~/\/?uploaded\//) {
  548: 	    $main_seq = $ENV{'request.course.uri'};
  549: 	} else {
  550: 	    $main_seq = '/res/'.$ENV{'request.course.uri'};
  551: 	}
  552: 	my @file_seq = &coming_from_hash_whole($main_seq);
  553: 	my $flag_latex_header_remove = 'NO';
  554:         #-- produce an output string
  555: 	for (my $i=0;$i<=$#file_seq;$i++) {
  556: 	   if (not $file_seq[$i]=~/^&&/) {
  557: 	     my ($urlp,$symb) = split /&&/, $file_seq[$i];
  558: 	     $urlp=~s/\/home\/httpd\/html//;	    
  559: 	     if ($urlp=~m/\.(problem|exam|quiz|assess|survey|form|library)/) {
  560: 		my %moreenv;
  561: 		$moreenv{'form.grade_target'}='tex';
  562: 		$moreenv{'form.textwidth'}=$LaTeXwidth;
  563: 		&Apache::lonnet::appenv(%moreenv);
  564: 		my $texversion=&Apache::lonnet::ssi($urlp,('symb'=>$symb));
  565: 		&Apache::lonnet::delenv('form.grade_target','form.textwidth');		    
  566: 		if ($flag_latex_header_remove ne 'NO') {
  567: 		    $texversion = &latex_header_footer_remove($texversion);
  568: 		} else {
  569: 		    $texversion =~ s/\\end{document}//;
  570: 		}
  571: 		$result .= $texversion;  
  572: 		$flag_latex_header_remove = 'YES';
  573: 	     }		
  574: 	   }
  575: 	}	    
  576: 	$result .= '\end{document}';
  577:     } elsif ($choice eq 'All class print') { 
  578:     #-- prints assignments for whole class or for selected students  
  579: 	$selectionmade = 5;
  580:         my @students = ();
  581: 	for (my $i=0; $i<$ENV{'form.numberofstudents'};$i++) {
  582: 	    if ($ENV{'form.whomtoprint'.$i}=~/:/) {
  583: 		push @students,$ENV{'form.whomtoprint'.$i};
  584: 	    }
  585: 	}
  586: 	#where is the primary sequence containing current resource (the same for all students)?
  587: 	my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'});
  588: 	my @sequence = split('___',$symbolic);
  589: 	my $primary_sequence = '/res/'.$sequence[0]; 	
  590: 	my @master_seq = &coming_from_hash($primary_sequence,$sequence[0]); 
  591:         #loop over students
  592: 	my $flag_latex_header_remove = 'NO'; 
  593: 	my %moreenv;
  594: 	$moreenv{'form.textwidth'}=$LaTeXwidth;
  595: 	&Apache::lonnet::appenv(%moreenv);
  596: 	foreach my $person (@students) {
  597: 	    my $current_output = ''; 
  598: 	    my ($usersection,$username,$userdomain) = split /:/,$person;
  599: 	    my $fullname = &Apache::grades::get_fullname($username,$userdomain);
  600:             #goes through all resources, checks if they are available for current student, and produces output   
  601: 	    foreach my $curresline (@master_seq)  {
  602: 		my ($curres,$symb) = split /&&/, $curresline;
  603:                 if ($curres=~ m/\.(problem|exam|quiz|assess|survey|form|library)/) {
  604: 		    my ($map,$id,$res_url) = split(/___/,$symb);
  605: 		    if (&Apache::lonnet::allowed('bre',$res_url)) {
  606: 			my $rendered = &Apache::loncommon::get_student_view($symb,$username,$userdomain,
  607:                                                                         $ENV{'request.course.id'},'tex');
  608: 			if ($flag_latex_header_remove eq 'YES') {
  609: 			    $rendered = &latex_header_footer_remove($rendered);
  610: 			} else {
  611: 			    $rendered =~ s/\\end{document}//;
  612: 			}
  613: 			$current_output .= $rendered;
  614: 		    }
  615: 		    $flag_latex_header_remove = 'YES';
  616: 		}
  617: 	    }
  618: 	    if ($current_output=~/\\documentclass/) {
  619: 		my $courseidinfo = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
  620: 		$current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{}\\lhead{$courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}  \\begin{document}\\noindent\\textit{\\textbf{$fullname}}\\vskip 3 mm /;
  621: 	    } else {
  622: 		my $blanspages = '';
  623: 		for (my $j=0;$j<$ENV{'form.addedpages'};$j++) {$blanspages.='\clearpage\strut\clearpage';}
  624: 		$current_output = '\strut\\newline\\noindent\\makebox[\\textwidth/$number_of_columns][b]{\\hrulefill}\\newline\\noindent{\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License } \\vskip 3mm'.$blanspages.'\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent\textit{\textbf{'.$fullname.'}}\hskip 1.4in } \vskip 5 mm '.$current_output;
  625: 	    }
  626: 	    $result .= $current_output;
  627: 	    &Apache::lonnet::delenv('form.counter');
  628: 	}
  629: 	$result .= '\end{document}';
  630: 	&Apache::lonnet::delenv('form.textwidth');
  631:     } elsif ($choice eq 'Subdirectory print') {      
  632:     #prints selected problems from the subdirectory 
  633: 	$selectionmade = 6;
  634:         my @list_of_files = ();
  635: 	for (my $i=0; $i<$ENV{'form.numberofproblems'};$i++) {
  636: 	    if ($ENV{'form.whattoprint'.$i}=~/^\//) {
  637: 		push @list_of_files,$ENV{'form.whattoprint'.$i};
  638: 	    }
  639: 	}	
  640: 	my $flag_latex_header_remove = 'NO';  
  641: 	for (my $i=0;$i<=$#list_of_files;$i++) {
  642: 	    my $urlp = $list_of_files[$i];
  643: 	    if ($urlp=~/\//) {
  644: 		my %moreenv;
  645: 		$moreenv{'form.grade_target'}='tex';
  646: 		$moreenv{'form.textwidth'}=$LaTeXwidth;
  647: 		&Apache::lonnet::appenv(%moreenv);
  648: 		if ($urlp =~ m|/home/([^/]+)/public_html|) {
  649: 		    $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
  650: 		} else {
  651: 		    $urlp =~ s|^/home/httpd/html||;
  652: 		}
  653: 		my $texversion=&Apache::lonnet::ssi($urlp);
  654: 		&Apache::lonnet::delenv('form.grade_target','form.textwidth');
  655:                 #this chunck is responsible for printing the path to problem
  656: 		my $newurlp = '';
  657: 		my $HowMany = length($urlp)*2;
  658: 		if ($HowMany > $LaTeXwidth) {
  659: 		    my @temporrary = split '/',$urlp;
  660: 		    my $HowManyNew = 0;
  661: 		    for (my $ii=0;$ii<=$#temporrary;$ii++) {
  662: 			if ($temporrary[$ii] ne '') {
  663: 			    $HowManyNew += length($temporrary[$ii])*2;
  664: 			    if ($HowManyNew < $LaTeXwidth ) {
  665: 				$newurlp .=  '/'.$temporrary[$ii];
  666: 			    } else {
  667: 				$HowManyNew = 0;
  668: 				$newurlp .=  '|\vskip -1 mm \noindent \verb|';
  669: 				$ii--;
  670: 			    }
  671: 			}
  672: 		    }
  673: 		}
  674: 		$texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 {\\small\\noindent\\verb|$newurlp\|\\vskip 0 mm}/;
  675: 		if ($flag_latex_header_remove ne 'NO') {
  676: 		    $texversion = &latex_header_footer_remove($texversion);
  677: 		} else {
  678: 		    $texversion =~ s/\\end{document}//;
  679: 		}
  680: 		$result .= $texversion;
  681: 	    }
  682: 	    $flag_latex_header_remove = 'YES';  
  683: 	}
  684: 	$result .= '\end{document}';      	
  685:     }
  686: #-------------------------------------------------------- corrections for the different page formats
  687:     $result = &page_format_transformation($papersize,$layout,$numberofcolumns,$choice,$result,$assignment);
  688:     if ($layout eq 'CBI') {
  689:         $laystyle = 'album';
  690:     }
  691:     $result = &latex_corrections($number_of_columns,$result);
  692:     #changes page's parameters for the one column output 
  693:     if ($ENV{'form.numberofcolumns'} == 1) {
  694: 	$result =~ s/\\textwidth= 9cm/\\textwidth= $ENV{'form.width'}/;
  695: 	$result =~ s/\\textheight 25\.9cm/\\textheight $ENV{'form.height'}/;
  696: 	$result =~ s/\\evensidemargin = -0\.57in/\\evensidemargin= $ENV{'form.leftmargin'}/;
  697: 	$result =~ s/\\oddsidemargin = -0\.57in/\\oddsidemargin= $ENV{'form.leftmargin'}/;
  698:     }
  699: #-- writing .tex file in prtspool 
  700:     my $temp_file;
  701:     my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
  702:     unless ($temp_file = Apache::File->new('>'.$filename)) {
  703: 	$r->log_error("Couldn't open $filename for output $!");
  704: 	return SERVER_ERROR; 
  705:     } 
  706:     print $temp_file $result;
  707: $r->print(<<FINALEND);
  708: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle&$numberofcolumns&$selectionmade">
  709: </body>
  710: </html>
  711: FINALEND
  712: }
  713: 
  714: 
  715: sub coming_from_hash_whole {
  716: 
  717:     my $mainsequence = shift;
  718:     my @resourcelist = ();
  719:     my $mapid = $hash{'map_pc_'.$mainsequence};
  720:     my $mapstart = $hash{'map_start_'.$mainsequence};
  721:     my $mapfinish = $hash{'map_finish_'.$mainsequence};
  722:     my $current_resource = $mapstart;
  723:     while ($current_resource ne $mapfinish) {
  724: 	if ($hash{'src_'.$current_resource}=~/\.sequence$/) {
  725: 	    push @resourcelist,&coming_from_hash_whole($hash{'src_'.$current_resource});
  726: 	} else {
  727: 	    my $presymb; 
  728: 	    if ($mainsequence =~ /\/res\/(.*)$/) {$presymb = $1;} 
  729:               elsif ($mainsequence =~ /\/?(uploaded\/(.*))$/) {$presymb = $1;} 
  730: 	    my $rid = $hash{'ids_'.$hash{'src_'.$current_resource}};
  731: 	    if ($rid=~/,/) {
  732: 		my @rid = split /,/, $rid;
  733: 		foreach my $rid_element (@rid) {
  734: 		    if ($rid_element =~ m/^$mapid\.(\d*)/) {
  735: 			$rid = $1; 
  736: 			last;
  737: 		    }
  738: 		}
  739: 	    } else {
  740: 	        $rid =~ m/^$mapid\.(\d*)/;
  741:                 $rid = $1;  
  742: 	    }
  743: 	    $hash{'src_'.$current_resource} =~ m/\/res\/(.*)$/;
  744: 	    my $symb = $presymb.'___'.$rid.'___'.$1;	    
  745: 	    push @resourcelist,$hash{'src_'.$current_resource}.'&&'.$symb;
  746: 	}
  747: 	$current_resource = $hash{'goesto_'.$hash{'to_'.$current_resource}};
  748:     } 
  749:     #needs if final resource in the map (type="finish") contains something
  750: 	if ($hash{'src_'.$current_resource}=~/\.sequence$/) {
  751: 	    push @resourcelist,&coming_from_hash_whole($hash{'src_'.$current_resource});
  752: 	} else {
  753: 	    my $presymb; 
  754: 	    if ($mainsequence =~ /\/res\/(.*)$/) {$presymb = $1;} 
  755:               elsif ($mainsequence =~ /\/?(uploaded\/(.*))$/) {$presymb = $1;} 
  756: 	    my $rid = $hash{'ids_'.$hash{'src_'.$current_resource}};
  757: 	    if ($rid=~/,/) {
  758: 		my @rid = split /,/, $rid;
  759: 		foreach my $rid_element (@rid) {
  760: 		    if ($rid_element =~ m/^$mapid\.(\d*)/) {
  761: 			$rid = $1; 
  762: 			last;
  763: 		    }
  764: 		}
  765: 	    } else {
  766: 	        $rid =~ m/^$mapid\.(\d*)/;
  767:                 $rid = $1;  
  768: 	    }
  769: 	    $hash{'src_'.$current_resource} =~ m/\/res\/(.*)$/;
  770: 	    my $symb = $presymb.'___'.$rid.'___'.$1;	    
  771: 	    push @resourcelist,$hash{'src_'.$current_resource}.'&&'.$symb;
  772: 	}
  773: 	$current_resource = $hash{'goesto_'.$hash{'to_'.$current_resource}};
  774:     return @resourcelist;
  775: }
  776: 
  777: 
  778: sub coming_from_hash {
  779: 
  780:     my ($mainsequence,$symb) = @_;
  781:     my @resourcelist = ();
  782:     my $mapid = $hash{'map_pc_'.$mainsequence};
  783:     my $mapstart = $hash{'map_start_'.$mainsequence};
  784:     my $mapfinish = $hash{'map_finish_'.$mainsequence};
  785:     my ($presymb);
  786:     if ($symb) {
  787: 	($presymb)=split(/___/,$symb);
  788:     } else {
  789: 	$presymb=$mainsequence;
  790: 	$presymb=~s|^/res/||;
  791:     }
  792:     $presymb = $presymb.'___';
  793:     my $current_resource = $mapstart;
  794:     while ($current_resource ne $mapfinish) {
  795: 	if (not $hash{'src_'.$current_resource}=~/\.sequence$/) {
  796: 	    my $rid = $hash{'ids_'.$hash{'src_'.$current_resource}};
  797:             if ($rid=~/,/) {
  798: 		my @rid = split /,/, $rid;
  799: 		foreach my $rid_element (@rid) {
  800: 		    if ($rid_element =~ m/^$mapid\.(\d*)/) {
  801: 			$rid = $1; 
  802: 			last;
  803: 		    }
  804: 		}
  805: 	    } else {
  806: 		$rid =~ m/^$mapid\.(\d*)/;
  807:                 $rid = $1;  
  808: 	    }
  809: 	    $hash{'src_'.$current_resource} =~ m/\/res\/(.*)$/;
  810: 	    $symb = $presymb.$rid.'___'.$1;
  811: 	    push @resourcelist,$hash{'src_'.$current_resource}.'&&'.$symb;
  812: 	} else {
  813: 	    push @resourcelist,&coming_from_hash($hash{'src_'.$current_resource});
  814: 	}
  815: 	$current_resource = $hash{'goesto_'.$hash{'to_'.$current_resource}};
  816:     }
  817:     #needs if final resource in the map (type="finish") contains something
  818:     if (not $hash{'src_'.$current_resource}=~/\.sequence$/) {
  819: 		    my $rid = $hash{'ids_'.$hash{'src_'.$current_resource}};
  820:             if ($rid=~/,/) {
  821: 		my @rid = split /,/, $rid;
  822: 		foreach my $rid_element (@rid) {
  823: 		    if ($rid_element =~ m/^$mapid\.(\d*)/) {
  824: 			$rid = $1; 
  825: 			last;
  826: 		    }
  827: 		}
  828: 	    } else {
  829: 		$rid =~ m/^$mapid\.(\d*)/;
  830:                 $rid = $1;  
  831: 	    }
  832: 	    $hash{'src_'.$current_resource} =~ m/\/res\/(.*)$/;
  833: 	    $symb = $presymb.$rid.'___'.$1;
  834: 	push @resourcelist,$hash{'src_'.$current_resource}.'&&'.$symb;
  835:     } else {
  836: 	push @resourcelist,&coming_from_hash($hash{'src_'.$current_resource});
  837:     }
  838:     return @resourcelist;
  839: }
  840: 
  841: 
  842: sub titles_coming_from_hash {
  843: 
  844:     my ($mainsequence,$symb) = @_;
  845:     my @resourcelist = ();
  846:     my $mapid = $hash{'map_pc_'.$mainsequence};
  847:     my $mapstart = $hash{'map_start_'.$mainsequence};
  848:     my $mapfinish = $hash{'map_finish_'.$mainsequence};
  849:     my ($presymb);
  850:     if ($symb) {
  851: 	($presymb)=split(/___/,$symb);
  852:     } else {
  853: 	$presymb=$mainsequence;
  854: 	$presymb=~s|^/res/||;
  855:     }
  856:     $presymb = $presymb.'___';
  857:     my $current_resource = $mapstart;
  858:     while ($current_resource ne $mapfinish) {
  859: 	if (not $hash{'src_'.$current_resource}=~/\.sequence$/) {
  860: 	    my $rid = $hash{'ids_'.$hash{'src_'.$current_resource}};
  861:             if ($rid=~/,/) {
  862: 		my @rid = split /,/, $rid;
  863: 		foreach my $rid_element (@rid) {
  864: 		    if ($rid_element =~ m/^$mapid\.(\d*)/) {
  865: 			$rid = $1; 
  866: 			last;
  867: 		    }
  868: 		}
  869: 	    } else {
  870: 		$rid =~ m/^$mapid\.(\d*)/;
  871:                 $rid = $1;  
  872: 	    }
  873: 	    $hash{'src_'.$current_resource} =~ m/\/res\/(.*)$/;
  874: 	    $symb = $presymb.$rid.'___'.$1;
  875: 	    push @resourcelist,$hash{'title_'.$current_resource}.'&&'.$symb;
  876: 	} else {
  877: 	    push @resourcelist,&titles_coming_from_hash($hash{'src_'.$current_resource});
  878: 	}
  879: 	$current_resource = $hash{'goesto_'.$hash{'to_'.$current_resource}};
  880:     }
  881:     #needs if final resource in the map (type="finish") contains something
  882:     if (not $hash{'src_'.$current_resource}=~/\.sequence$/) {
  883: 		    my $rid = $hash{'ids_'.$hash{'src_'.$current_resource}};
  884:             if ($rid=~/,/) {
  885: 		my @rid = split /,/, $rid;
  886: 		foreach my $rid_element (@rid) {
  887: 		    if ($rid_element =~ m/^$mapid\.(\d*)/) {
  888: 			$rid = $1; 
  889: 			last;
  890: 		    }
  891: 		}
  892: 	    } else {
  893: 		$rid =~ m/^$mapid\.(\d*)/;
  894:                 $rid = $1;  
  895: 	    }
  896: 	    $hash{'src_'.$current_resource} =~ m/\/res\/(.*)$/;
  897: 	    $symb = $presymb.$rid.'___'.$1;
  898: 	push @resourcelist,$hash{'title_'.$current_resource}.'&&'.$symb;
  899:     } else {
  900: 	push @resourcelist,&titles_coming_from_hash($hash{'src_'.$current_resource});
  901:     }
  902:     return @resourcelist;
  903: }
  904: 
  905: sub latex_header_footer_remove {
  906:     my $text = shift;
  907:     $text =~ s/\\end{document}//;
  908:     $text =~ s/\\documentclass([^&]*)\\begin{document}//;
  909:     return $text;
  910: }
  911: 
  912: 
  913: sub character_chart {
  914:     my $result = shift;	
  915:     $result =~ s/&#0?0?7;//g;
  916:     $result =~ s/&#0?0?9;//g;
  917:     $result =~ s/&#0?10;//g;
  918:     $result =~ s/&#0?13;//g;
  919:     $result =~ s/&#0?32;/ /g;
  920:     $result =~ s/&#0?33;/!/g;
  921:     $result =~ s/&#0?34;/"/g;
  922:     $result =~ s/&quot;/"/g;   #"
  923:     $result =~ s/&#0?35;/\\#/g;
  924: #    $result =~ s/&#0?36;/\\\$/g;
  925:     $result =~ s/&#0?37;/\\%/g; 
  926:     $result =~ s/&#0?38;/\\&/g; 
  927:     $result =~ s/&amp;/\\&/g;
  928:     $result =~ s/&#0?39;/'/g;
  929:     $result =~ s/&#0?40;/(/g;
  930:     $result =~ s/&#0?41;/)/g;
  931:     $result =~ s/&#0?42;/\*/g;
  932:     $result =~ s/&#0?43;/\+/g;
  933:     $result =~ s/&#0?44;/,/g;
  934:     $result =~ s/&#0?45;/-/g;
  935:     $result =~ s/&#0?46;/\./g;
  936:     $result =~ s/&#0?47;/\//g;
  937:     $result =~ s/&#0?48;/0/g;
  938:     $result =~ s/&#0?49;/1/g;
  939:     $result =~ s/&#0?50;/2/g;
  940:     $result =~ s/&#0?51;/3/g;
  941:     $result =~ s/&#0?52;/4/g;
  942:     $result =~ s/&#0?53;/5/g;
  943:     $result =~ s/&#0?54;/6/g;
  944:     $result =~ s/&#0?55;/7/g;
  945:     $result =~ s/&#0?56;/8/g;
  946:     $result =~ s/&#0?57;/9/g;
  947:     $result =~ s/&#0?58;/:/g;
  948:     $result =~ s/&#0?59;/;/g;
  949:     $result =~ s/&#0?60;/\$<\$/g;
  950:     $result =~ s/&lt;/\$<\$/g;
  951:     $result =~ s/&#0?61;/\$=\$/g;
  952:     $result =~ s/&#0?62;/\$>\$/g;
  953:     $result =~ s/&gt;/\$>\$/g;
  954:     $result =~ s/&#0?63;/?/g;
  955: #    $result =~ s/&#0?64;//g;
  956:     $result =~ s/&#0?65;/A/g;
  957:     $result =~ s/&#0?66;/B/g;
  958:     $result =~ s/&#0?67;/C/g;
  959:     $result =~ s/&#0?68;/D/g;
  960:     $result =~ s/&#0?69;/E/g;
  961:     $result =~ s/&#0?70;/F/g;
  962:     $result =~ s/&#0?71;/G/g;
  963:     $result =~ s/&#0?72;/H/g;
  964:     $result =~ s/&#0?73;/I/g;
  965:     $result =~ s/&#0?74;/J/g;
  966:     $result =~ s/&#0?75;/K/g;
  967:     $result =~ s/&#0?76;/L/g;
  968:     $result =~ s/&#0?77;/M/g;
  969:     $result =~ s/&#0?78;/N/g;
  970:     $result =~ s/&#0?79;/O/g;
  971:     $result =~ s/&#0?80;/P/g;
  972:     $result =~ s/&#0?81;/Q/g;
  973:     $result =~ s/&#0?82;/R/g;
  974:     $result =~ s/&#0?83;/S/g;
  975:     $result =~ s/&#0?84;/T/g;
  976:     $result =~ s/&#0?85;/U/g;
  977:     $result =~ s/&#0?86;/V/g;
  978:     $result =~ s/&#0?87;/W/g;
  979:     $result =~ s/&#0?88;/X/g;
  980:     $result =~ s/&#0?89;/Y/g;
  981:     $result =~ s/&#0?90;/Z/g;
  982:     $result =~ s/&#0?91;/[/g;
  983:     $result =~ s/&#0?92;/\\/g;
  984:     $result =~ s/&#0?93;/]/g;
  985: #    $result =~ s/&#0?94;//g;
  986: #    $result =~ s/&#0?95;//g;
  987:     $result =~ s/&#0?96;/`/g;
  988:     $result =~ s/&#0?97;/a/g;
  989:     $result =~ s/&#0?98;/b/g;
  990:     $result =~ s/&#0?99;/c/g;
  991:     $result =~ s/&#100;/d/g;
  992:     $result =~ s/&#101;/e/g;
  993:     $result =~ s/&#102;/f/g;
  994:     $result =~ s/&#103;/g/g;
  995:     $result =~ s/&#104;/h/g;
  996:     $result =~ s/&#105;/i/g;
  997:     $result =~ s/&#106;/j/g;
  998:     $result =~ s/&#107;/k/g;
  999:     $result =~ s/&#108;/l/g;
 1000:     $result =~ s/&#109;/m/g;
 1001:     $result =~ s/&#110;/n/g;
 1002:     $result =~ s/&#111;/o/g;
 1003:     $result =~ s/&#112;/p/g;
 1004:     $result =~ s/&#113;/q/g;
 1005:     $result =~ s/&#114;/r/g;
 1006:     $result =~ s/&#115;/s/g;
 1007:     $result =~ s/&#116;/t/g;
 1008:     $result =~ s/&#117;/u/g;
 1009:     $result =~ s/&#118;/v/g;
 1010:     $result =~ s/&#119;/w/g;
 1011:     $result =~ s/&#120;/x/g;
 1012:     $result =~ s/&#121;/y/g;
 1013:     $result =~ s/&#122;/z/g;
 1014:     $result =~ s/&#123;/\\{/g;
 1015:     $result =~ s/&#124;/\|/g;
 1016:     $result =~ s/&#125;/\\}/g;
 1017:     $result =~ s/&#126;/\~/g;
 1018:     $result =~ s/&#130;/,/g;
 1019: #    $result =~ s/&#131;//g;
 1020:     $result =~ s/&#132;/''/g;
 1021:     $result =~ s/&#133;/\$\\ldots\$/g;
 1022:     $result =~ s/&#134;/\$\\dagger\$/g;
 1023:     $result =~ s/&#135;/\$\\ddagger\$/g;
 1024: #    $result =~ s/&#136;//g;
 1025: #    $result =~ s/&#137;//g;
 1026: #    $result =~ s/&#138;//g;
 1027:     $result =~ s/&#139;/\$<\$/g;
 1028: #    $result =~ s/&#140;//g;
 1029:     $result =~ s/&#145;/`/g;
 1030:     $result =~ s/&#146;/'/g;
 1031:     $result =~ s/&#147;/``/g;
 1032:     $result =~ s/&#148;/''/g;
 1033:     $result =~ s/&#149;/\$\\bullet\$/g;
 1034: #    $result =~ s/&#150;//g;
 1035: #    $result =~ s/&#151;//g;
 1036:     $result =~ s/&#152;/~/g;
 1037: #    $result =~ s/&#153;//g;
 1038: #    $result =~ s/&#154;//g;
 1039:     $result =~ s/&#155;/\$>\$/g;
 1040:     $result =~ s/&#156;/\\{\\oe\\}/g;
 1041:     $result =~ s/&#159;/\\"\\{Y\\}/g;
 1042:     $result =~ s/&#160;//g;
 1043:     $result =~ s/&nbsp;//g;
 1044:     $result =~ s/&#161;/!`/g;
 1045:     $result =~ s/&iexcl;/!`/g; #`
 1046: #    $result =~ s/&#162;//g;
 1047: #    $result =~ s/&cent;//g;
 1048:     $result =~ s/&#163;/\\pounds/g; 
 1049:     $result =~ s/&pound;/\\pounds/g;
 1050: #    $result =~ s/&#164;//g;
 1051: #    $result =~ s/&curren;//g;
 1052: #    $result =~ s/&#165;//g;
 1053: #    $result =~ s/&yen;//g;
 1054: #    $result =~ s/&#166;//g;
 1055: #    $result =~ s/&brvbar;//g;
 1056: #    $result =~ s/&#167;//g;
 1057: #    $result =~ s/&sect;//g;
 1058: #    $result =~ s/&#168;//g;
 1059: #    $result =~ s/&uml;//g;
 1060:     $result =~ s/&#169;/\\copyright/g;
 1061:     $result =~ s/&copy;/\\copyright/g;
 1062: #    $result =~ s/&#170;//g;
 1063: #    $result =~ s/&ordf;//g;
 1064: #    $result =~ s/&#171;//g;
 1065: #    $result =~ s/&laquo;//g;
 1066:     $result =~ s/&#172;/\$\\neg\$/g;
 1067:     $result =~ s/&not;/\$\\neg\$/g;
 1068: #    $result =~ s/&#173;//g;
 1069: #    $result =~ s/&shy;//g;
 1070: #    $result =~ s/&#174;//g;
 1071: #    $result =~ s/&reg;//g;
 1072: #    $result =~ s/&#175;//g;
 1073: #    $result =~ s/&macr;//g;
 1074:     $result =~ s/&#176;/\$^{\\circ}\$/g;
 1075:     $result =~ s/&deg;/\$^{\\circ}\$/g;
 1076:     $result =~ s/&#177;/\$\\pm\$/g;
 1077:     $result =~ s/&plusmn;/\$\\pm\$/g;
 1078:     $result =~ s/&#178;/\$^2\$/g;
 1079:     $result =~ s/&sup2;/\$^2\$/g;
 1080:     $result =~ s/&#179;/\$^3\$/g;
 1081:     $result =~ s/&sup3;/\$^3\$/g;
 1082: #    $result =~ s/&#180;//g;
 1083: #    $result =~ s/&acute;//g;
 1084:     $result =~ s/&#181;/\$\\mu\$/g;
 1085:     $result =~ s/&micro;/\$\\mu\$/g;
 1086:     $result =~ s/&#182;/\\P/g;
 1087:     $result =~ s/&para;/\\P/g;
 1088:     $result =~ s/&#183;/\$\\cdot\$/g;
 1089:     $result =~ s/&middot;/\$\\cdot\$/g;
 1090: #    $result =~ s/&#184;//g;
 1091: #    $result =~ s/&cedil;//g;
 1092:     $result =~ s/&#185;/\$^1\$/g;
 1093:     $result =~ s/&sup1;/\$^1\$/g;
 1094: #    $result =~ s/&#186;//g;
 1095: #    $result =~ s/&ordm;//g;
 1096: #    $result =~ s/&#187;//g;
 1097: #    $result =~ s/&raquo;//g;
 1098: #    $result =~ s/&#188;//g;
 1099: #    $result =~ s/&frac14;//g;
 1100: #    $result =~ s/&#189;//g;
 1101: #    $result =~ s/&frac12;//g;
 1102: #    $result =~ s/&#190;//g;
 1103: #    $result =~ s/&frac34;//g;
 1104:     $result =~ s/&#191;/?`/g;   
 1105:     $result =~ s/&iquest;/?`/g;      #`
 1106:     $result =~ s/&#192;/\\`{A}/g; 
 1107:     $result =~ s/&Agrave;/\\`{A}/g;  #` 
 1108:     $result =~ s/&#193;/\\'{A}/g; 
 1109:     $result =~ s/&Aacute;/\\'{A}/g;  #'
 1110:     $result =~ s/&#194;/\\^{A}/g;
 1111:     $result =~ s/&Acirc;/\\^{A}/g;
 1112:     $result =~ s/&#195;/\\~{A}/g;
 1113:     $result =~ s/&Atilde;/\\~{A}/g;
 1114:     $result =~ s/&#196;/\\"{A}/g; 
 1115:     $result =~ s/&Auml;/\\"{A}/g;    #"
 1116:     $result =~ s/&#197;/{\\AA}/g;
 1117:     $result =~ s/&Aring;/{\\AA}/g;
 1118:     $result =~ s/&#198;/{\\AE}/g;
 1119:     $result =~ s/&AElig;/{\\AE}/g;
 1120: #    $result =~ s/&#199;//g;
 1121: #    $result =~ s/&Ccedil;//g;
 1122:     $result =~ s/&#200;/\\`{E}/g;  
 1123:     $result =~ s/&Egrave;/\\`{E}/g;  #`
 1124:     $result =~ s/&#201;/\\'{E}/g;    #'
 1125:     $result =~ s/&Eacute;/\\'{E}/g;  #'
 1126:     $result =~ s/&#202;/\\^{E}/g;
 1127:     $result =~ s/&Ecirc;/\\^{E}/g;
 1128:     $result =~ s/&#203;/\\`{E}/g;
 1129:     $result =~ s/&Euml;/\\`{E}/g;    #`
 1130:     $result =~ s/&#204;/\\`{I}/g;
 1131:     $result =~ s/&Igrave;/\\`{I}/g;  #`
 1132:     $result =~ s/&#205;/\\'{I}/g;    
 1133:     $result =~ s/&Iacute;/\\'{I}/g;  #'
 1134:     $result =~ s/&#206;/\\^{I}/g;
 1135:     $result =~ s/&Icirc;/\\^{I}/g;
 1136:     $result =~ s/&#207;/\\"{I}/g;    
 1137:     $result =~ s/&Iuml;/\\"{I}/g;    #"
 1138: #    $result =~ s/&#208;//g;
 1139: #    $result =~ s/&ETH;//g;
 1140:     $result =~ s/&#209;/\\~{N}/g;
 1141:     $result =~ s/&Ntilde;/\\~{N}/g;
 1142:     $result =~ s/&#210;/\\`{O}/g;
 1143:     $result =~ s/&Ograve;/\\`{O}/g;  #`
 1144:     $result =~ s/&#211;/\\'{O}/g;
 1145:     $result =~ s/&Oacute;/\\'{O}/g;  #'
 1146:     $result =~ s/&#212;/\\^{O}/g;
 1147:     $result =~ s/&Ocirc;/\\^{O}/g;
 1148:     $result =~ s/&#213;/\\~{O}/g;
 1149:     $result =~ s/&Otilde;/\\~{O}/g;
 1150:     $result =~ s/&#214;/\\"{O}/g;    
 1151:     $result =~ s/&Ouml;/\\"{O}/g;    #"
 1152:     $result =~ s/&#215;/\$\\times\$/g;
 1153:     $result =~ s/&times;/\$\\times\$/g;
 1154:     $result =~ s/&#216;/{\\O}/g;
 1155:     $result =~ s/&Oslash;/{\\O}/g;
 1156:     $result =~ s/&#217;/\\`{U}/g;    
 1157:     $result =~ s/&Ugrave;/\\`{U}/g;  #`
 1158:     $result =~ s/&#218;/\\'{U}/g;    #'
 1159:     $result =~ s/&Uacute;/\\'{U}/g;  #'
 1160:     $result =~ s/&#219;/\\^{U}/g;
 1161:     $result =~ s/&Ucirc;/\\^{U}/g;
 1162:     $result =~ s/&#220;/\\"{U}/g;    #"
 1163:     $result =~ s/&Uuml;/\\"{U}/g;    #"
 1164:     $result =~ s/&#221;/\\'{Y}/g;
 1165:     $result =~ s/&Yacute;/\\'{Y}/g;  #'
 1166: #    $result =~ s/&#222;//g;
 1167: #    $result =~ s/&THORN;//g;
 1168: #    $result =~ s/&#223;//g;
 1169: #    $result =~ s/&szlig;//g;
 1170:     $result =~ s/&#224;/\\`{a}/g;
 1171:     $result =~ s/&agrave;/\\`{a}/g;  #`
 1172:     $result =~ s/&#225;/\\'{a}/g;
 1173:     $result =~ s/&aacute;/\\'{a}/g;  #'
 1174:     $result =~ s/&#226;/\\^{a}/g;
 1175:     $result =~ s/&acirc;/\\^{a}/g;
 1176:     $result =~ s/&#227;/\\~{a}/g;
 1177:     $result =~ s/&atilde;/\\~{a}/g;
 1178:     $result =~ s/&#228;/\\"{a}/g;
 1179:     $result =~ s/&auml;/\\"{a}/g;    #"
 1180:     $result =~ s/&#229;/{\\aa}/g;
 1181:     $result =~ s/&aring;/{\\aa}/g;
 1182:     $result =~ s/&#230;/{\\ae}/g;
 1183:     $result =~ s/&aelig;/{\\ae}/g;
 1184: #    $result =~ s/&#231;//g;
 1185: #    $result =~ s/&ccedil;//g;
 1186:     $result =~ s/&#232;/\\`{e}/g;
 1187:     $result =~ s/&egrave;/\\`{e}/g;  #`
 1188:     $result =~ s/&#233;/\\'{e}/g;
 1189:     $result =~ s/&eacute;/\\'{e}/g;  #'
 1190:     $result =~ s/&#234;/\\^{e}/g;
 1191:     $result =~ s/&ecirc;/\\^{e}/g;
 1192:     $result =~ s/&#235;/\\"{e}/g;
 1193:     $result =~ s/&euml;/\\"{e}/g;    #"
 1194:     $result =~ s/&#236;/\\`{i}/g;
 1195:     $result =~ s/&igrave;/\\`{i}/g;  #`
 1196:     $result =~ s/&#237;/\\'{i}/g;
 1197:     $result =~ s/&iacute;/\\'{i}/g;  #'
 1198:     $result =~ s/&#238;/\\^{i}/g;
 1199:     $result =~ s/&icirc;/\\^{i}/g;
 1200:     $result =~ s/&#239;/\\"{i}/g;
 1201:     $result =~ s/&iuml;/\\"{i}/g;    #"
 1202: #    $result =~ s/&#240;//g;
 1203: #    $result =~ s/&eth;//g;
 1204:     $result =~ s/&#241;/\\~{n}/g;
 1205:     $result =~ s/&ntilde;/\\~{n}/g;
 1206:     $result =~ s/&#242;/\\`{o}/g;
 1207:     $result =~ s/&ograve;/\\`{o}/g;  #`
 1208:     $result =~ s/&#243;/\\'{o}/g;
 1209:     $result =~ s/&oacute;/\\'{o}/g;  #'
 1210:     $result =~ s/&#244;/\\^{o}/g;
 1211:     $result =~ s/&ocirc;/\\^{o}/g;
 1212:     $result =~ s/&#245;/\\~{o}/g;
 1213:     $result =~ s/&otilde;/\\~{o}/g;
 1214:     $result =~ s/&#246;/\\"{o}/g;
 1215:     $result =~ s/&ouml;/\\"{o}/g;    #"
 1216:     $result =~ s/&#247;/\$\\div\$/g;
 1217:     $result =~ s/&divide;/\$\\div\$/g;
 1218:     $result =~ s/&#248;/{\\o}/g;
 1219:     $result =~ s/&oslash;/{\\o}/g;
 1220:     $result =~ s/&#249;/\\`{u}/g; 
 1221:     $result =~ s/&ugrave;/\\`{u}/g;  #` 
 1222:     $result =~ s/&#250;/\\'{u}/g;
 1223:     $result =~ s/&uacute;/\\'{u}/g;  #'
 1224:     $result =~ s/&#251;/\\^{u}/g;
 1225:     $result =~ s/&ucirc;/\\^{u}/g;
 1226:     $result =~ s/&#252;/\\"{u}/g;
 1227:     $result =~ s/&uuml;/\\"{u}/g;    #"
 1228:     $result =~ s/&#253;/\\'{y}/g;
 1229:     $result =~ s/&yacute;/\\'{y}/g;  #'
 1230: #    $result =~ s/&#254;//g;
 1231: #    $result =~ s/&thorn;//g;
 1232:     $result =~ s/&#255;/\\"{y}/g;
 1233:     $result =~ s/&yuml;/\\"{y}/g;    #"
 1234:     $result =~ s/&#952;/\$\\theta\$/g; #converts theta from html into tex
 1235:     return $result;
 1236: }
 1237: 
 1238: 
 1239:     sub page_format {
 1240: 	my ($papersize,$layout,$numberofcolumns) = @_; 
 1241: 	my ($textwidth,$textheight,$oddoffset,$evenoffset) = (0,0,0,0);
 1242: 	if ($papersize=~/Letter/) {
 1243: 	    if ($layout eq 'CAPA') {
 1244: 		if ($numberofcolumns == 1) {
 1245: 		    $textwidth = '18 cm';
 1246: 		    $textheight = '25.9 cm';
 1247: 		    $oddoffset = '-0.57 in';
 1248: 		    $evenoffset = '-0.57 in';
 1249: 		} elsif ($numberofcolumns == 2) {
 1250: 		    $textwidth = '93 mm';
 1251: 		    $textheight = '25.9 cm';
 1252: 		    $oddoffset = '-0.57 in';
 1253: 		    $evenoffset = '-0.57 in';
 1254: 		}
 1255: 	    } elsif ($layout eq 'CBI') {
 1256: 		if ($numberofcolumns eq '1') {
 1257: 		    $textwidth = '8.8 in';
 1258: 		    $textheight = '6.8 in';
 1259: 		    $oddoffset = '-40 pt';
 1260: 		    $evenoffset = '-60 pt';
 1261: 		} elsif ($numberofcolumns == 2) {
 1262: 		    $textwidth = '4.2 in';
 1263: 		    $textheight = '6.8 in';
 1264: 		    $oddoffset = '-40 pt';
 1265: 		    $evenoffset = '-60 pt';
 1266: 		}
 1267: 	    }
 1268: #    } elsif($papersize=~/Legal/) {
 1269: #    } elsif($papersize=~/Ledger/) {
 1270: #    } elsif($papersize=~/Executive/) {
 1271:     } elsif($papersize=~/A4/) {
 1272: 	    if ($layout eq 'CAPA') {
 1273: 		if ($numberofcolumns == 1) {
 1274: 		    $textwidth = '18 cm';
 1275: 		    $textheight = '28 cm';
 1276: 		    $oddoffset = '-0.57 in';
 1277: 		    $evenoffset = '-0.57 in';
 1278: 		} elsif ($numberofcolumns == 2) {
 1279: 		    $textwidth = '96 mm';
 1280: 		    $textheight = '2 cm';
 1281: 		    $oddoffset = '-0.57 in';
 1282: 		    $evenoffset = '-0.57 in';
 1283: 		}
 1284: 	    } elsif ($layout eq 'CBI') {
 1285: 		if ($numberofcolumns eq '1') {
 1286: 		    $textwidth = '8.5 in';
 1287: 		    $textheight = '7.7 in';
 1288: 		    $oddoffset = '-40 pt';
 1289: 		    $evenoffset = '-60 pt';
 1290: 		} elsif ($numberofcolumns == 2) {
 1291: 		    $textwidth = '3.9 in';
 1292: 		    $textheight = '7.7 in';
 1293: 		    $oddoffset = '-40 pt';
 1294: 		    $evenoffset = '-60 pt';
 1295: 		}
 1296: 	    }
 1297: #    } elsif($papersize=~/A3/) {
 1298: #    } elsif($papersize=~/A2/) {
 1299: #    } elsif($papersize=~/A5/) {
 1300: #    } elsif($papersize=~/A6/) {
 1301: 	}
 1302: 	return $textwidth,$textheight,$oddoffset,$evenoffset;
 1303:     }
 1304: 
 1305: 
 1306: sub page_format_transformation {
 1307:     my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment) = @_; 
 1308:     my ($textwidth,$textheight,$oddoffset,$evenoffset);
 1309: 	$assignment=~s/_/ /g;
 1310:         if ($numberofcolumns != 1) {
 1311:           ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$layout,$numberofcolumns);
 1312: 	} else {
 1313: 	  ($textwidth,$textheight,$oddoffset,$evenoffset) = ($ENV{'form.width'},$ENV{'form.height'},$ENV{'form.leftmargin'},$ENV{'form.leftmargin'});
 1314: 	}
 1315:     my $firstname = &special_character_corrections(&Apache::lonnet::unescape($ENV{'environment.firstname'}));
 1316:     my $lastname = &special_character_corrections(&Apache::lonnet::unescape($ENV{'environment.lastname'}));
 1317:     my $courseidinfo = &special_character_corrections(&Apache::lonnet::unescape($ENV{'course.'.$ENV{'request.course.id'}.'.description'}));
 1318:     if ($layout eq 'CBI') {
 1319: 	    $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$oddoffset}\\setlength{\\evensidemargin}{$evenoffset}\\setlength{\\topmargin}{200pt}\\setlength{\\textwidth}{$textwidth}\\setlength{\\textheight}{$textheight}\\setlength{\\parindent}{20pt}\\setlength{\\marginparwidth}{90pt}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm} \\begin{document}\\setcounter{page}{1}\\noindent\\parbox{\\minipagewidth}{\\noindent\\fbox{\\textbf{$firstname $lastname}} \\hfill  $courseidinfo} \\vskip 5 mm /;
 1320:     } elsif ($layout eq 'CAPA') {
 1321: 	if ($choice ne 'All class print') { 
 1322: 		$text =~ s/\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{}\\lhead{\\textbf{$firstname $lastname} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1}/;
 1323: 	} else {
 1324: 		$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\}\\begin{document}\\voffset=-1\.8cm\\setcounter{page}{1}  \\vskip 5 mm /;
 1325: 	}
 1326:     }
 1327:     return $text;
 1328: }
 1329: 
 1330: 
 1331: sub page_cleanup {
 1332:     my $result = shift;	
 1333:  
 1334:     $result =~ m/\\end{document}(\d*)$/;
 1335:     my $number_of_columns = $1;
 1336:     my $insert = '{';
 1337:     for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
 1338:     $insert .= '}';
 1339:     $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE\\endfirsthead\\endhead/$1$insert/g;
 1340:     $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
 1341:     return $result,$number_of_columns;
 1342: }
 1343: 
 1344: 
 1345: sub details_for_menu {
 1346: 
 1347:     my $name_of_resourse = $hash{'title_'.$hash{'ids_'.$ENV{'form.postdata'}}};
 1348:     my $symbolic = &Apache::lonnet::symbread($ENV{'form.postdata'});
 1349:     my ($map,$id,$resource)=split(/___/,$symbolic);
 1350:     my $name_of_sequence;
 1351:     if ($map=~/^uploaded/) {
 1352: 	$name_of_sequence = $hash{'title_'.$hash{'ids_/'.$map}};
 1353:     } else {
 1354: 	$name_of_sequence = $hash{'title_'.$hash{'ids_/res/'.$map}};
 1355:     }
 1356:     if ($name_of_sequence =~ /^\s*$/) {
 1357:      $map =~ m|([^/]+)$|;
 1358:       $name_of_sequence = $1;
 1359:     }
 1360:     my $name_of_map = $hash{'title_'.$hash{'ids_/res/'.$ENV{'request.course.uri'}}};
 1361:     if ($name_of_map =~ /^\s*$/) {
 1362:       $ENV{'request.course.uri'} =~ m|([^/]+)$|;
 1363:       $name_of_map = $1;
 1364:     }  
 1365:     return ($name_of_resourse,$name_of_sequence,$name_of_map);
 1366: 
 1367: }
 1368: 
 1369: 
 1370: sub special_character_corrections {
 1371:     my $argument = shift;
 1372:     $argument =~ s/_/ /g;
 1373:     $argument =~ s/\^/ /g;
 1374:     $argument =~ s/&/\\&/g;
 1375:     return $argument;
 1376: }
 1377: 
 1378: 
 1379: sub latex_corrections {
 1380: 
 1381:     my ($number_of_columns,$result) = @_;
 1382: 
 1383:     $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
 1384:     $result =~ s/\$number_of_columns/$number_of_columns/g;
 1385:     $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/;
 1386:     $result =~ s/(\\end{longtable}\s*)(\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
 1387:     $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
 1388: #-- LaTeX corrections     
 1389:     my $first_comment = index($result,'<!--',0);
 1390:     while ($first_comment != -1) {
 1391: 	my $end_comment = index($result,'-->',$first_comment);
 1392: 	substr($result,$first_comment,$end_comment-$first_comment+3) = '';
 1393: 	$first_comment = index($result,'<!--',$first_comment);
 1394:     }
 1395:     $result =~ s/^\s+$//gm; #remove empty lines
 1396:     $result =~ s/(\s)(\s+)/$1/g; #removes more than one empty space
 1397:     $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
 1398:     $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
 1399:     $result =~ s/{\\par }\s*\\\\/\\\\/gm;
 1400: 	$result =~ s/\\\\\s+\[/ \[/g;
 1401:     $result =~ s/\b__+\b/\\makebox\[1 cm\]\[b\]{\\hrulefill}/g;
 1402:     #conversion of html characters to LaTeX equivalents
 1403:     if ($result =~ m/&(\w+|#\d+);/) {
 1404: 	$result = &character_chart($result);
 1405:     }
 1406:     $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
 1407:     $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
 1408: 
 1409:     return $result;
 1410: }
 1411: 
 1412: 
 1413: sub handler {
 1414: 
 1415:     my $r = shift;
 1416: 
 1417:     my $loaderror=&Apache::lonnet::overloaderror($r);
 1418:     if ($loaderror) { return $loaderror; }
 1419:     $loaderror=
 1420:        &Apache::lonnet::overloaderror($r,
 1421:          $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
 1422:     if ($loaderror) { return $loaderror; }
 1423: 
 1424:     $r->content_type('text/html');
 1425:     $r->send_http_header;
 1426:     $r->print(&Apache::loncommon::bodytag("Printing"));
 1427: 
 1428:     if ($ENV{'request.course.id'}) {
 1429: 	my $fn=$ENV{'request.course.fn'};
 1430: 	tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);
 1431:     }
 1432: 
 1433: #-- start form
 1434:     &headerform($r);
 1435: #-- menu for output
 1436:     unless  ($ENV{'form.phase'}) {
 1437: 	&menu_for_output($r);
 1438:     }
 1439: #-- additional menu for class printing
 1440:      if ($ENV{'form.phase'} eq 'two') {
 1441: 	 if($ENV{'form.choice'} eq 'Standard LaTeX output for whole primary sequence') {
 1442: 	     &sequence_content_menu(0,$r);
 1443: 	 } elsif($ENV{'form.choice'} eq 'Standard LaTeX output for the primary sequence') {
 1444: 	     &sequence_content_menu(1,$r);
 1445: 	 } elsif($ENV{'form.choice'} eq 'All class print') {
 1446: 	     &additional_class_menu($r);
 1447: 	 } elsif($ENV{'form.choice'} eq 'Subdirectory print') {
 1448: 	     &problem_choice_menu($r);
 1449: 	 } else {
 1450: 	     $ENV{'form.phase'} = 'three';
 1451: 	 }
 1452:      }
 1453: #-- additional menu for page layout (one column case)
 1454:     if ($ENV{'form.phase'} eq 'three') {
 1455: 	if($ENV{'form.numberofcolumns'} == 1) {
 1456: 	    &additional_print_menu($r);
 1457: 	} else {
 1458: 	    $ENV{'form.phase'} = 'four';
 1459: 	}
 1460:     }
 1461: #-- core part 
 1462:     if ($ENV{'form.phase'} eq 'four') {
 1463: 	&output_data($r);
 1464:     }	
 1465:     untie %hash;
 1466:     return OK;
 1467:    
 1468: } 
 1469: 
 1470: 
 1471: 1;
 1472: __END__
 1473:
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