File:  [LON-CAPA] / loncom / interface / lonprintout.pm
Revision 1.171: download - view: text, annotated - select for diffs
Wed May 14 18:15:03 2003 UTC (21 years ago) by sakharuk
Branches: MAIN
CVS tags: HEAD
It is possible now to print the whole sequence of problems with answers. The same is true with respect to printing the sequence with html/xml resources. Moreover, you can build your own arbitrary set of resources from the whole course and print them with answers.

    1: # The LearningOnline Network
    2: # Printout
    3: #
    4: # $Id: lonprintout.pm,v 1.171 2003/05/14 18:15:03 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:     $r->print(<<ENDMENUOUT5);
  118: <br /><hr /><br />
  119: <h1>And what page format do you prefer?</h1>
  120: <table>
  121:  <tr>
  122:    <td>
  123:      <input type="radio" name="layout" value="CBI"> Landscape <br />
  124:      <input type="radio" name="layout" value="CAPA" checked>  Portrait <br />
  125:    </td>
  126:    <td>&nbsp;</td>
  127:    <td rawspan="2">
  128:      Number of columns: <select name="numberofcolumns">
  129:                          <option> 1 </option>
  130:                          <option selected> 2 </option>
  131:                         </select> 
  132:    </td>
  133:    <td rawspan="2">
  134:      Paper size (format [width x height]): <select name="papersize">
  135:                                             <option selected> Letter [8 1/2x11 in] </option>
  136:                                             <option> Legal [8 1/2x14 in] </option>
  137:                                             <option> Ledger/Tabloid [11x17 in] </option>
  138:                                             <option> Executive [7 1/2x10 in] </option>
  139:                                             <option> A2 [420x594 mm] </option>
  140:                                             <option> A3 [297x420 mm] </option>
  141:                                             <option> A4 [210x297 mm] </option>
  142:                                             <option> A5 [148x210 mm] </option>
  143:                                             <option> A6 [105x148 mm] </option>
  144:                                            </select> 
  145:    </td>
  146:  </tr>
  147: 
  148: </table>
  149: </br> 
  150: <input type="submit" value="Submit your choice">
  151: ENDMENUOUT5
  152: }
  153: 
  154: 
  155: sub sequence_content_menu {
  156:     my ($key_to,$r) = @_;
  157:     my $primary_sequence;
  158:     my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'});
  159:     my @sequence = split('___',$symbolic);
  160:     $primary_sequence=&Apache::lonnet::clutter($sequence[0]);
  161:     my @master_seq = &coming_from_hash($primary_sequence);
  162:     my @titles_master_seq = (); 
  163:     for (my $i=0;$i<=$#master_seq;$i++) {
  164: 	my ($path,$title,$symb) = split /&&/,$master_seq[$i];
  165: 	$master_seq[$i] = $path.'&&'.$symb;
  166:         push @titles_master_seq,  $title;
  167:     }
  168:     my @master_seq_view = @master_seq;
  169:     if ($ENV{'user.adv'}) {
  170:       for (my $i=0;$i<=$#master_seq_view;$i++) {
  171: 	 $master_seq_view[$i]=~/___\d+___(.+)$/;
  172: 	 $master_seq_view[$i]='/'.$1;
  173:       }
  174:     } else {
  175:       for (my $i=0;$i<=$#master_seq_view;$i++) {
  176:          $master_seq_view[$i]=' ';
  177:       }
  178:     }
  179:     $r->print(<<ENDMENUOUT1);
  180: <input type="hidden" name="url" value="$ENV{'form.url'}">
  181: <input type="hidden" name="choice" value="$ENV{'form.choice'}">
  182: <input type="hidden" name="layout" value="$ENV{'form.layout'}">
  183: <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">
  184: <input type="hidden" name="assignment" value="$ENV{'form.assignment'}">
  185: <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
  186: <h1>Mark item(s) which you want to print</h1>
  187: <script>
  188:     function checkall() {
  189: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  190:             if (document.forms.printform.elements[i].name.indexOf('whatfile')==0) {
  191: 	      document.forms.printform.elements[i].checked=true;
  192:             }
  193:         }
  194:     }
  195:     function uncheckall() {
  196: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  197:             if 
  198:           (document.forms.printform.elements[i].name.indexOf('whatfile')==0) {
  199: 	      document.forms.printform.elements[i].checked=false;
  200:             }
  201:         }
  202:     }
  203: </script>
  204: <b>
  205: <input type=button onClick="checkall()" value="Check All">&nbsp;
  206: <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;
  207: <input type="submit" value="Submit">
  208: <p>
  209: ENDMENUOUT1
  210:     my $inc=0; 
  211:     for (my $i=0;$i<=$#master_seq_view;$i++) {
  212:       if ($key_to==1 && $master_seq[$i]=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
  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:         $inc++;
  216:     } elsif ($key_to==0 && $master_seq[$i]=~/\.(problem|exam|quiz|assess|survey|form|library|xml|htm|html|page)$/) {
  217: 	$r->print('<br /><input type=checkbox name="whatfile'.$inc.'" value="'.$master_seq[$i].'"> '."\n".'<b>'.
  218:                   $titles_master_seq[$i].'</b>&nbsp;&nbsp;&nbsp;<small>'.$master_seq_view[$i].'</small>');
  219:         $inc++;
  220:       }
  221:     }
  222:     $r->print(<<ENDMENUOUT2);
  223: <br /><br />
  224: <input type="hidden" name="numberoffiles" value="$inc">
  225: <input type="hidden" name="phase" value="three">
  226: <input type=button onClick="checkall()" value="Check All">&nbsp;
  227: <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;
  228: <input type="submit" value="Submit">
  229: ENDMENUOUT2
  230: 
  231: }
  232: 
  233: 
  234: sub problem_choice_menu {
  235:     my $r = shift;
  236:     my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'});
  237:     $subdirtoprint =~ s/\/[^\/]+$//;
  238:     my @list_of_files = ();
  239:     my @content_directory = ();
  240:     $r->print("Subdir: " . $subdirtoprint . "<br />");
  241:     if ($subdirtoprint =~ m|/home/([^/]+)/public_html|) {
  242: 	#localmachine CSTR space
  243: 	my $user=$1;
  244: 	my $domain=$Apache::lonnet::perlvar{'lonDefDomain'};
  245: 	@content_directory = &Apache::lonnet::dirlist($subdirtoprint,
  246: 						      $domain, $user,'');
  247:     } else {
  248:         #local library server res space (allows to print only from the own library server)
  249: 	@content_directory = &Apache::lonnet::dirlist($subdirtoprint,$ENV{'user.domain'}, $ENV{'user.name'},'');
  250:     }
  251:     for (my $iy=0;$iy<=$#content_directory;$iy++) {
  252: 	my @tempo_array = split(/&/,$content_directory[$iy]);
  253: 	if ($tempo_array[0] =~ m/^[^\.]+\.(problem|exam|quiz|assess|survey|form|library)$/) {
  254: 	    push(@list_of_files,$tempo_array[0]);
  255: 	}
  256:     }
  257:     $subdirtoprint =~ s/\/$//;
  258:     for (my $i=0;$i<=$#list_of_files;$i++) {
  259: 	$list_of_files[$i] = $subdirtoprint.'/'.$list_of_files[$i];
  260:     }
  261:     $r->print(<<ENDMENUOUT1);
  262: <input type="hidden" name="url" value="$ENV{'form.url'}">
  263: <input type="hidden" name="choice" value="$ENV{'form.choice'}">
  264: <input type="hidden" name="layout" value="$ENV{'form.layout'}">
  265: <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
  266: <h1>Mark problems which you want to print</h1>
  267: <script>
  268:     function checkall() {
  269: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  270:             if 
  271:           (document.forms.printform.elements[i].name.indexOf('whattoprint')==0) {
  272: 	      document.forms.printform.elements[i].checked=true;
  273:             }
  274:         }
  275:     }
  276: 
  277: 
  278:     function uncheckall() {
  279: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  280:             if 
  281:           (document.forms.printform.elements[i].name.indexOf('whattoprint')==0) {
  282: 	      document.forms.printform.elements[i].checked=false;
  283:             }
  284:         }
  285:     }
  286: </script>
  287: <input type=button onClick="checkall()" value="Check All">&nbsp;
  288: <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;
  289: <input type="submit" value="Submit">
  290: <p>
  291: ENDMENUOUT1
  292:     my $i=0;
  293:     foreach my $file (sort @list_of_files) {
  294: 	$r->print('<br /><input type=checkbox name="whattoprint'.$i.'" value="'.$file.'"> '.
  295:                   $file);
  296: 	$i++;
  297:     }
  298:     $r->print(<<ENDMENUOUT2);
  299: <br /><br />
  300: <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">
  301: <input type="hidden" name="numberofproblems" value="$i">
  302: <input type="hidden" name="phase" value="three">
  303: <input type=button onClick="checkall()" value="Check All">&nbsp;
  304: <input type=button onClick="uncheckall()" value="Uncheck">&nbsp;
  305: <input type="submit" value="Submit">
  306: ENDMENUOUT2
  307: }
  308: 
  309: 
  310: sub additional_class_menu {
  311:     my $r = shift;
  312:     $r->print(<<ENDMENUOUT1);
  313: <input type="hidden" name="url" value="$ENV{'form.url'}">
  314: <input type="hidden" name="choice" value="$ENV{'form.choice'}">
  315: <input type="hidden" name="layout" value="$ENV{'form.layout'}">
  316: <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
  317: <input type="hidden" name="assignment" value="$ENV{'form.assignment'}">
  318: <h1>Select student(s) whose assignment you want to print</h1>
  319: ENDMENUOUT1
  320:     my %courselist=&Apache::lonnet::dump(
  321:                    'classlist',
  322: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
  323: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
  324:     my $now=time;
  325:     $r->print(<<ENDDISHEADER);
  326: <script>
  327:     function checkall() {
  328: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  329:             if 
  330:           (document.forms.printform.elements[i].name.indexOf('whomtoprint')==0) {
  331: 	      document.forms.printform.elements[i].checked=true;
  332:             }
  333:         }
  334:     }
  335: 
  336:     function checksec() {
  337: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  338:             if 
  339:           (document.forms.printform.elements[i].value.indexOf
  340:            (document.forms.printform.chksec.value)==0) {
  341: 	      document.forms.printform.elements[i].checked=true;
  342:             }
  343:         }
  344:     }
  345: 
  346:     function uncheckall() {
  347: 	for (i=0; i<document.forms.printform.elements.length; i++) {
  348:             if 
  349:           (document.forms.printform.elements[i].name.indexOf('whomtoprint')==0) {
  350: 	      document.forms.printform.elements[i].checked=false;
  351:             }
  352:         }
  353:     }
  354: </script>
  355: <input type=button onClick="checkall()" value="Check All">&nbsp;
  356: <input type=button onClick="checksec()" value="Type Section/Group then click">
  357: <input type=text size=5 name=chksec>&nbsp;
  358: <input type=button onClick="uncheckall()" value="Uncheck">
  359: <p>
  360: ENDDISHEADER
  361:     my $i = 0;
  362:     foreach (sort keys %courselist) {
  363:         my ($end,$start)=split(/\:/,$courselist{$_});
  364:         my $active=1;
  365:         if (($end) && ($now>$end)) { $active=0; }
  366:         if ($active) {
  367:            my ($sname,$sdom)=split(/\:/,$_);
  368:            my %reply=&Apache::lonnet::get('environment',
  369:               ['firstname','middlename','lastname','generation'],
  370:               $sdom,$sname);
  371:            my $section=&Apache::lonnet::usection
  372: 	       ($sdom,$sname,$ENV{'request.course.id'});
  373: 	   if ($section == -1) { $section = ''; }
  374:            $r->print(
  375:         '<br /><input type=checkbox name="whomtoprint'.$i.'" value="'.$section.':'.$_.'"> '.
  376: 		      $reply{'firstname'}.' '. 
  377:                       $reply{'middlename'}.' '.
  378:                       $reply{'lastname'}.' '.
  379:                       $reply{'generation'}.
  380:                       ' ('.$_.') '.$section);
  381: 	   $i++;
  382:         } 
  383:     }
  384:     $r->print(<<ENDMENUOUT2);
  385: <br /><br /><br />
  386: <table><tr><td width=300>Number of blank pages added to each student assignments to print these assignments on physically different sheets (<b>requires manual addjustment</b>): <select name="addedpages"><option selected>0</option>
  387:                                                                             <option>1</option>
  388:                                                                             <option>2</option>
  389:                                                                             <option>3</option>
  390:                                                   </select></td></tr></table>
  391: <br /> 
  392: <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">
  393: <input type="hidden" name="numberofstudents" value="$i">
  394: <input type="hidden" name="phase" value="three">
  395: <input type="submit" value="Submit">
  396: ENDMENUOUT2
  397: }
  398: 
  399: 
  400: sub additional_print_menu { 
  401:     my $r = shift;
  402:     my $what_to_print = '';
  403:     for (my $i=0; $i<$ENV{'form.numberofstudents'};$i++) {
  404: 	$what_to_print .= '<input type="hidden" name="whomtoprint'.$i.'" value="'.$ENV{'form.whomtoprint'.$i}.'">';
  405:     }
  406:     for (my $i=0; $i<$ENV{'form.numberofproblems'};$i++) {
  407: 	$what_to_print .= '<input type="hidden" name="whattoprint'.$i.'" value="'.$ENV{'form.whattoprint'.$i}.'">';
  408:     }
  409:     for (my $i=0; $i<$ENV{'form.numberoffiles'};$i++) {
  410: 	$what_to_print .= '<input type="hidden" name="whatfile'.$i.'" value="'.$ENV{'form.whatfile'.$i}.'">';
  411:     }
  412:     $r->print(<<ENDMENUOUT);
  413:     $what_to_print
  414: <input type="hidden" name="url" value="$ENV{'form.url'}">
  415: <input type="hidden" name="choice" value="$ENV{'form.choice'}">
  416: <input type="hidden" name="layout" value="$ENV{'form.layout'}">
  417: <input type="hidden" name="papersize" value="$ENV{'form.papersize'}">
  418: <input type="hidden" name="numberofstudents" value="$ENV{'form.numberofstudents'}">
  419: <input type="hidden" name="numberofproblems" value="$ENV{'form.numberofproblems'}">
  420: <input type="hidden" name="numberoffiles" value="$ENV{'form.numberoffiles'}">
  421: <input type="hidden" name="numberofcolumns" value="$ENV{'form.numberofcolumns'}">
  422: <input type="hidden" name="assignment" value="$ENV{'form.assignment'}">
  423: <input type="hidden" name="addedpages" value="$ENV{'form.addedpages'}">
  424: Define one column layout parameters: <br />
  425: <b>Width</b>: <input type="text" name="width" width="8" value="9cm"> <br />
  426: <b>Height</b>: <input type="text" name="height" width="8" value="25.9cm"> <br />
  427: <b>Left margin</b>: <input type="text" name="leftmargin" width="8" value="-0.57in"> <br />
  428: <input type="hidden" name="phase" value="four">
  429: <input type="submit" value="Submit">
  430: </form>
  431: </body>
  432: </html>
  433: ENDMENUOUT
  434: }
  435: 
  436: 
  437: sub output_data {
  438:     my $r = shift;
  439:     $r->print(<<ENDPART);
  440: <html>
  441: <head>
  442: <title>LON-CAPA output for printing</title>
  443: </head>
  444: <body bgcolor="FFFFFF">
  445: <hr>
  446: ENDPART
  447: 
  448:     my $choice = $ENV{'form.choice'};
  449:     my $layout = $ENV{'form.layout'};
  450:     my $numberofcolumns = $ENV{'form.numberofcolumns'};  
  451:     my $papersize = $ENV{'form.papersize'};          
  452:     my $laystyle = 'book';
  453:     my $assignment =  $ENV{'form.assignment'};
  454:     if ($choice eq 'Subdirectory print') {
  455: 	if ($ENV{'form.layout'} eq '') {$layout = 'CAPA';}
  456: 	if ($ENV{'form.papersize'} eq '') {$papersize = 'Letter [8 1/2x11 in]';}
  457: 	if ($ENV{'form.numberofcolumns'} eq '') {$numberofcolumns = 2;}
  458:     }
  459:     if (($choice eq 'Standard LaTeX output for current document') &&
  460: 	($ENV{'form.url'}=~m|^/~|)) {
  461: 	if ($ENV{'form.layout'} eq '') {$layout = 'CAPA';}
  462: 	if ($ENV{'form.papersize'} eq '') {$papersize = 'Letter [8 1/2x11 in]';}
  463: 	if ($ENV{'form.numberofcolumns'} eq '') {$numberofcolumns = 2;}
  464:     }
  465:     my $result = '';
  466:     my $number_of_columns = 1; #used only for pages to determine the width of the cell
  467:     my $selectionmade = '';
  468:     my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$layout,$numberofcolumns);
  469:     if ($numberofcolumns == 1) {
  470: 	$textwidth=$ENV{'form.width'};
  471: 	$textheight=$ENV{'form.height'};
  472:     }
  473:     my $LaTeXwidth; 
  474:     if ($textwidth=~/(\d+\s*cm)/) {
  475: 	$LaTeXwidth = $1*10;
  476:     } elsif ($textwidth=~/(\d+\s*mm)/) {
  477: 	$LaTeXwidth = $1;
  478:     }
  479:     if ($choice eq 'Standard LaTeX output for current document') {
  480:       #-- single document - problem, page, html, xml, ...  
  481:       $selectionmade = 1;
  482:       if ($ENV{'form.url'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
  483:         my %moreenv;
  484:         if (&Apache::lonnet::allowed('bre',$ENV{'form.url'})) {
  485: 	  $ENV{'form.url'}=~s/http:\/\/[^\/]+//;
  486:         }
  487:         $moreenv{'request.filename'}=$ENV{'form.url'};
  488: 	my %form;
  489:         $form{'textwidth'}=$LaTeXwidth;
  490:         $form{'grade_target'}='tex';
  491:         &Apache::lonnet::appenv(%moreenv);
  492:         my $texversion=&Apache::lonnet::ssi($ENV{'form.url'},%form);
  493:         &Apache::lonnet::delenv('form.counter');
  494:         $result .= $texversion;
  495:         if ($ENV{'form.url'}=~m/\.page\s*$/) {
  496: 	  ($result,$number_of_columns) = &page_cleanup($result);
  497:         }
  498:       } else {
  499: 	  $result='\documentclass[letterpaper]{article}\usepackage{calc}\begin{document}Printout of this type of document is currently not supported: ';
  500: 	  if ($ENV{'form.url'}=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) {
  501: 	      $result.=$1;
  502: 	  } else {
  503: 	      $result.=$ENV{'form.url'};
  504: 	  }
  505: 	  $result.=' \end{document}'
  506:       }
  507:     } elsif ($choice eq 'Standard LaTeX output for the primary sequence' or 
  508:              $choice eq 'Standard LaTeX output for whole primary sequence') {
  509:       #-- minimal sequence to which the current document belongs
  510:         #-- where is the primary sequence containing file?
  511:         my @master_seq = ();
  512: 	for (my $i=0; $i<$ENV{'form.numberoffiles'};$i++) {
  513: 	    if ($ENV{'form.whatfile'.$i}=~/\S/) {
  514: 		push @master_seq,$ENV{'form.whatfile'.$i};
  515: 	    }
  516: 	}
  517:         #-- produce an output string
  518: 	my $flag_latex_header_remove = 'NO';
  519: 	my $flag_page_in_sequence = 'NO';
  520: 	for (my $i=0;$i<=$#master_seq;$i++) {
  521:            my ($urlp,$symb) = split /&&/, $master_seq[$i];
  522: 	    if ($choice eq 'Standard LaTeX output for the primary sequence') {
  523:               $selectionmade = 2;
  524: 	    } elsif ($choice eq 'Standard LaTeX output for whole primary sequence') {
  525:               $selectionmade = 3;
  526: 	    }
  527: 	   my %form;
  528: 	   $form{'textwidth'}=$LaTeXwidth;
  529: 	   $form{'grade_target'}='tex';
  530: 	   $form{'symb'}=$symb;
  531: 	   #&Apache::lonnet::logthis("Trying to get $urlp with symb $symb");
  532: 	   my $texversion=&Apache::lonnet::ssi($urlp,%form);
  533: 	   if ($urlp =~ m/\.page/) {
  534: 	     ($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
  535: 	     if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;} 
  536: 	     $texversion =~ s/\\end{document}\d*/\\end{document}/;
  537: 	     $flag_page_in_sequence = 'YES';
  538: 	   } 
  539: 	   if ($flag_latex_header_remove ne 'NO') {
  540: 	     $texversion = &latex_header_footer_remove($texversion);
  541: 	   } else {
  542: 	     $texversion =~ s/\\end{document}//;
  543: 	   }
  544: 	   $result .= $texversion;         
  545: 	   $flag_latex_header_remove = 'YES';   
  546: 	}
  547: 	&Apache::lonnet::delenv('form.counter');
  548: 	if ($flag_page_in_sequence eq 'YES') {$result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;}	
  549: 	$result .= '\end{document}';
  550:     }  elsif ($choice eq 'Standard LaTeX output for the top level sequence') {
  551:         # where is the main sequence of the course?
  552: 	$selectionmade = 4;
  553: 	my $main_seq=&Apache::lonnet::clutter($ENV{'request.course.uri'});
  554: 	my @file_seq = &coming_from_hash($main_seq);
  555: 	for (my $i=0;$i<=$#file_seq;$i++) {
  556: 	    my ($path,$title,$symb) = split /&&/,$file_seq[$i];
  557: 	    $file_seq[$i] = $path.'&&'.$symb;
  558: 	}
  559: 	my $flag_latex_header_remove = 'NO';
  560:         #-- produce an output string
  561: 	for (my $i=0;$i<=$#file_seq;$i++) {
  562: 	   if (not $file_seq[$i]=~/^&&/) {
  563: 	     my ($urlp,$symb) = split /&&/, $file_seq[$i];
  564: 	     $urlp=~s/\/home\/httpd\/html//;	    
  565: 	     if ($urlp=~m/\.(problem|exam|quiz|assess|survey|form|library)/) {
  566: 		my %form;
  567: 		$form{'grade_target'}='tex';
  568: 		$form{'textwidth'}=$LaTeXwidth;
  569: 		$form{'symb'}=$symb;
  570: 		my $texversion=&Apache::lonnet::ssi($urlp,%form);
  571: 		if ($flag_latex_header_remove ne 'NO') {
  572: 		    $texversion = &latex_header_footer_remove($texversion);
  573: 		} else {
  574: 		    $texversion =~ s/\\end{document}//;
  575: 		}
  576: 		$result .= $texversion;  
  577: 		$flag_latex_header_remove = 'YES';
  578: 	     }		
  579: 	   }
  580: 	}	    
  581: 	$result .= '\end{document}';
  582:     } elsif ($choice eq 'All class print') { 
  583:     #-- prints assignments for whole class or for selected students  
  584: 	$selectionmade = 5;
  585:         my @students = ();
  586: 	for (my $i=0; $i<$ENV{'form.numberofstudents'};$i++) {
  587: 	    if ($ENV{'form.whomtoprint'.$i}=~/:/) {
  588: 		push @students,$ENV{'form.whomtoprint'.$i};
  589: 	    }
  590: 	}
  591: 	#where is the primary sequence containing current resource (the same for all students)?
  592: 	my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'});
  593: 	my @sequence = split('___',$symbolic);
  594: 	my $primary_sequence;
  595: 
  596: 	$primary_sequence=&Apache::lonnet::clutter($sequence[0]);
  597: 	my @master_seq = &coming_from_hash($primary_sequence); 
  598: 	for (my $i=0;$i<=$#master_seq;$i++) {
  599: 	    my ($path,$title,$symb) = split /&&/,$master_seq[$i];
  600: 	    $master_seq[$i] = $path.'&&'.$symb;
  601: 	}
  602:         #loop over students
  603: 	my $flag_latex_header_remove = 'NO'; 
  604: 	my %moreenv;
  605: 	$moreenv{'form.textwidth'}=$LaTeXwidth;
  606: 	&Apache::lonnet::appenv(%moreenv);
  607: 	my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1);
  608: 	foreach my $person (@students) {
  609: 	    my $current_output = ''; 
  610: 	    my ($usersection,$username,$userdomain) = split /:/,$person;
  611: 	    my $fullname = &get_name($username,$userdomain);
  612:             #goes through all resources, checks if they are available for current student, and produces output   
  613: 	    foreach my $curresline (@master_seq)  {
  614: 		my ($curres,$symb) = split /&&/, $curresline;
  615:                 if ($curres=~ m/\.(problem|exam|quiz|assess|survey|form|library)/) {
  616: 		    my ($map,$id,$res_url) = split(/___/,$symb);
  617: 		    if (&Apache::lonnet::allowed('bre',$res_url)) {
  618: 			my $rendered = &Apache::loncommon::get_student_view($symb,$username,$userdomain,
  619:                                                                         $ENV{'request.course.id'},'tex');
  620: 			if ($flag_latex_header_remove eq 'YES') {
  621: 			    $rendered = &latex_header_footer_remove($rendered);
  622: 			} else {
  623: 			    $rendered =~ s/\\end{document}//;
  624: 			}
  625: 			$current_output .= $rendered;
  626: 		    }
  627: 		    $flag_latex_header_remove = 'YES';
  628: 		}
  629: 	    }
  630: 	    my $courseidinfo = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
  631: 	    if ($current_output=~/\\documentclass/) {
  632: 		$current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{} \\begin{document}\\noindent\\lhead{\\textit{\\textbf{$fullname}} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}\\vskip 3 mm /;
  633: 	    } else {
  634: 		my $blanspages = '';
  635: 		for (my $j=0;$j<$ENV{'form.addedpages'};$j++) {$blanspages.='\clearpage\strut\clearpage';}
  636: 		$current_output = '\strut\\newline\\noindent\\makebox[\\textwidth/$number_of_columns][b]{\\hrulefill}\\newline\\noindent{\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License }\\newpage \\vskip 3mm'.$blanspages.'\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$fullname.'}} - '.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}\hskip 1.4in } \vskip 5 mm '.$current_output;
  637: 	    }
  638: 	    $result .= $current_output;
  639: 	    &Apache::lonnet::delenv('form.counter');	    
  640: 	    &Apache::lonxml::init_counter(); 
  641: 	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
  642: 						    'last student '.$fullname);
  643: 	}
  644: 	&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
  645: 	$result .= '\end{document}';
  646: 	&Apache::lonnet::delenv('form.textwidth');
  647:     } elsif ($choice eq 'Subdirectory print') {      
  648:     #prints selected problems from the subdirectory 
  649: 	$selectionmade = 6;
  650:         my @list_of_files = ();
  651: 	for (my $i=0; $i<$ENV{'form.numberofproblems'};$i++) {
  652: 	    if ($ENV{'form.whattoprint'.$i}=~/^\//) {
  653: 		push @list_of_files,$ENV{'form.whattoprint'.$i};
  654: 	    }
  655: 	}	
  656: 	my $flag_latex_header_remove = 'NO';  
  657: 	for (my $i=0;$i<=$#list_of_files;$i++) {
  658: 	    my $urlp = $list_of_files[$i];
  659: 	    if ($urlp=~/\//) {
  660: 		my %form;
  661: 		$form{'grade_target'}='tex';
  662: 		$form{'textwidth'}=$LaTeXwidth;
  663: 		if ($urlp =~ m|/home/([^/]+)/public_html|) {
  664: 		    $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
  665: 		} else {
  666: 		    $urlp =~ s|^/home/httpd/html||;
  667: 		}
  668: 		my $texversion=&Apache::lonnet::ssi($urlp,%form);
  669:                 #this chunck is responsible for printing the path to problem
  670: 		my $newurlp = '';
  671: 		my $HowMany = length($urlp)*2;
  672: 		if ($HowMany > $LaTeXwidth) {
  673: 		    my @temporrary = split '/',$urlp;
  674: 		    my $HowManyNew = 0;
  675: 		    for (my $ii=0;$ii<=$#temporrary;$ii++) {
  676: 			if ($temporrary[$ii] ne '') {
  677: 			    $HowManyNew += length($temporrary[$ii])*2;
  678: 			    if ($HowManyNew < $LaTeXwidth ) {
  679: 				$newurlp .=  '/'.$temporrary[$ii];
  680: 			    } else {
  681: 				$HowManyNew = 0;
  682: 				$newurlp .=  '|\vskip -1 mm \noindent \verb|';
  683: 				$ii--;
  684: 			    }
  685: 			}
  686: 		    }
  687: 		}
  688: 		$texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 {\\small\\noindent\\verb|$newurlp\|\\vskip 0 mm}/;
  689: 		if ($flag_latex_header_remove ne 'NO') {
  690: 		    $texversion = &latex_header_footer_remove($texversion);
  691: 		} else {
  692: 		    $texversion =~ s/\\end{document}//;
  693: 		}
  694: 		$result .= $texversion;
  695: 	    }
  696: 	    $flag_latex_header_remove = 'YES';  
  697: 	}
  698: 	$result .= '\end{document}';      	
  699:     }
  700: #-------------------------------------------------------- corrections for the different page formats
  701:     $result = &page_format_transformation($papersize,$layout,$numberofcolumns,$choice,$result,$assignment);
  702:     if ($layout eq 'CBI') {
  703:         $laystyle = 'album';
  704:     }
  705:     $result = &latex_corrections($number_of_columns,$result);
  706:     #changes page's parameters for the one column output 
  707:     if ($ENV{'form.numberofcolumns'} == 1) {
  708: 	$result =~ s/\\textwidth= 9cm/\\textwidth= $ENV{'form.width'}/;
  709: 	$result =~ s/\\textheight 25\.9cm/\\textheight $ENV{'form.height'}/;
  710: 	$result =~ s/\\evensidemargin = -0\.57in/\\evensidemargin= $ENV{'form.leftmargin'}/;
  711: 	$result =~ s/\\oddsidemargin = -0\.57in/\\oddsidemargin= $ENV{'form.leftmargin'}/;
  712:     }
  713: #-- writing .tex file in prtspool 
  714:     my $temp_file;
  715:     my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
  716:     unless ($temp_file = Apache::File->new('>'.$filename)) {
  717: 	$r->log_error("Couldn't open $filename for output $!");
  718: 	return SERVER_ERROR; 
  719:     } 
  720:     print $temp_file $result;
  721: $r->print(<<FINALEND);
  722: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle&$numberofcolumns&$selectionmade">
  723: </body>
  724: </html>
  725: FINALEND
  726: }
  727: 
  728: 
  729: sub coming_from_hash {
  730: 
  731:     my $mainsequence = shift;
  732:     my @resourcelist = ();
  733:     my $mapid = $hash{'map_pc_'.$mainsequence};
  734:     my $mapstart = $hash{'map_start_'.$mainsequence};
  735:     my $mapfinish = $hash{'map_finish_'.$mainsequence};
  736:     my $current_resource = $mapstart;
  737:     while ($current_resource ne $mapfinish) {
  738: 	if ($hash{'src_'.$current_resource}=~/\.sequence$/) {
  739: 	    push @resourcelist,&coming_from_hash($hash{'src_'.$current_resource});
  740: 	} else {
  741: 	    my $presymb=&Apache::lonnet::declutter($mainsequence);
  742: 	    my $rid = $current_resource;
  743: 	    if ($rid=~/,/) {
  744: 		my @rid = split /,/, $rid;
  745: 		foreach my $rid_element (@rid) {
  746: 		    if ($rid_element =~ m/^$mapid\.(\d*)/) {
  747: 			$rid = $1; 
  748: 			last;
  749: 		    }
  750: 		}
  751: 	    } else {
  752: 	        $rid =~ m/^$mapid\.(\d*)/;
  753:                 $rid = $1;  
  754: 	    }
  755: 	    my $symb = $presymb.'___'.$rid.'___'.
  756: 		&Apache::lonnet::declutter($hash{'src_'.$current_resource});
  757: 	    push @resourcelist,$hash{'src_'.$current_resource}.'&&'.$hash{'title_'.$current_resource}.'&&'.$symb;
  758: 	}
  759: 	$current_resource = $hash{'goesto_'.$hash{'to_'.$current_resource}};
  760:     } 
  761:     #needs if final resource in the map (type="finish") contains something
  762: 	if ($hash{'src_'.$current_resource}=~/\.sequence$/) {
  763: 	    push @resourcelist,&coming_from_hash($hash{'src_'.$current_resource});
  764: 	} else {
  765: 	    my $presymb=&Apache::lonnet::declutter($mainsequence);
  766: 	    my $rid = $current_resource;
  767: 	    if ($rid=~/,/) {
  768: 		my @rid = split /,/, $rid;
  769: 		foreach my $rid_element (@rid) {
  770: 		    if ($rid_element =~ m/^$mapid\.(\d*)/) {
  771: 			$rid = $1; 
  772: 			last;
  773: 		    }
  774: 		}
  775: 	    } else {
  776: 	        $rid =~ m/^$mapid\.(\d*)/;
  777:                 $rid = $1;  
  778: 	    }
  779: 	    my $symb = $presymb.'___'.$rid.'___'.
  780: 		&Apache::lonnet::declutter($hash{'src_'.$current_resource});
  781: 	    push @resourcelist,$hash{'src_'.$current_resource}.'&&'.$hash{'title_'.$current_resource}.'&&'.$symb;
  782: 	}
  783: 	$current_resource = $hash{'goesto_'.$hash{'to_'.$current_resource}};
  784:     return @resourcelist;
  785: }
  786: 
  787: 
  788: sub latex_header_footer_remove {
  789:     my $text = shift;
  790:     $text =~ s/\\end{document}//;
  791:     $text =~ s/\\documentclass([^&]*)\\begin{document}//;
  792:     return $text;
  793: }
  794: 
  795: 
  796: sub character_chart {
  797:     my $result = shift;	
  798:     $result =~ s/&\#0?0?(7|9);//g;
  799:     $result =~ s/&\#0?(10|13);//g;
  800:     $result =~ s/&\#0?32;/ /g;
  801:     $result =~ s/&\#0?33;/!/g;
  802:     $result =~ s/&(\#0?34|quot);/\"/g;
  803:     $result =~ s/&\#0?35;/\\\#/g;
  804:     $result =~ s/&\#0?36;/\\\$/g;
  805:     $result =~ s/&\#0?37;/\\%/g; 
  806:     $result =~ s/&(\#0?38|amp);/\\&/g; 
  807:     $result =~ s/&\#(0?39|146);/\'/g;
  808:     $result =~ s/&\#0?40;/(/g;
  809:     $result =~ s/&\#0?41;/)/g;
  810:     $result =~ s/&\#0?42;/\*/g;
  811:     $result =~ s/&\#0?43;/\+/g;
  812:     $result =~ s/&\#(0?44|130);/,/g;
  813:     $result =~ s/&\#0?45;/-/g;
  814:     $result =~ s/&\#0?46;/\./g;
  815:     $result =~ s/&\#0?47;/\//g;
  816:     $result =~ s/&\#0?48;/0/g;
  817:     $result =~ s/&\#0?49;/1/g;
  818:     $result =~ s/&\#0?50;/2/g;
  819:     $result =~ s/&\#0?51;/3/g;
  820:     $result =~ s/&\#0?52;/4/g;
  821:     $result =~ s/&\#0?53;/5/g;
  822:     $result =~ s/&\#0?54;/6/g;
  823:     $result =~ s/&\#0?55;/7/g;
  824:     $result =~ s/&\#0?56;/8/g;
  825:     $result =~ s/&\#0?57;/9/g;
  826:     $result =~ s/&\#0?58;/:/g;
  827:     $result =~ s/&\#0?59;/;/g;
  828:     $result =~ s/&(\#0?60|lt|\#139);/\$<\$/g;
  829:     $result =~ s/&\#0?61;/\$=\$/g;
  830:     $result =~ s/&(\#0?62|gt|\#155);/\$>\$/g;
  831:     $result =~ s/&\#0?63;/\?/g;
  832:     $result =~ s/&\#0?65;/A/g;
  833:     $result =~ s/&\#0?66;/B/g;
  834:     $result =~ s/&\#0?67;/C/g;
  835:     $result =~ s/&\#0?68;/D/g;
  836:     $result =~ s/&\#0?69;/E/g;
  837:     $result =~ s/&\#0?70;/F/g;
  838:     $result =~ s/&\#0?71;/G/g;
  839:     $result =~ s/&\#0?72;/H/g;
  840:     $result =~ s/&\#0?73;/I/g;
  841:     $result =~ s/&\#0?74;/J/g;
  842:     $result =~ s/&\#0?75;/K/g;
  843:     $result =~ s/&\#0?76;/L/g;
  844:     $result =~ s/&\#0?77;/M/g;
  845:     $result =~ s/&\#0?78;/N/g;
  846:     $result =~ s/&\#0?79;/O/g;
  847:     $result =~ s/&\#0?80;/P/g;
  848:     $result =~ s/&\#0?81;/Q/g;
  849:     $result =~ s/&\#0?82;/R/g;
  850:     $result =~ s/&\#0?83;/S/g;
  851:     $result =~ s/&\#0?84;/T/g;
  852:     $result =~ s/&\#0?85;/U/g;
  853:     $result =~ s/&\#0?86;/V/g;
  854:     $result =~ s/&\#0?87;/W/g;
  855:     $result =~ s/&\#0?88;/X/g;
  856:     $result =~ s/&\#0?89;/Y/g;
  857:     $result =~ s/&\#0?90;/Z/g;
  858:     $result =~ s/&\#0?91;/[/g;
  859:     $result =~ s/&\#0?92;/\$\\setminus\$/g;
  860:     $result =~ s/&\#0?93;/]/g;
  861:     $result =~ s/&\#(0?94|136);/\$\\wedge\$/g;
  862:     $result =~ s/&\#(0?95|138|154);/\\underline{\\makebox[2mm]{\\strut}}/g;
  863:     $result =~ s/&\#(0?96|145);/\`/g;
  864:     $result =~ s/&\#0?97;/a/g;
  865:     $result =~ s/&\#0?98;/b/g;
  866:     $result =~ s/&\#0?99;/c/g;
  867:     $result =~ s/&\#100;/d/g;
  868:     $result =~ s/&\#101;/e/g;
  869:     $result =~ s/&\#102;/f/g;
  870:     $result =~ s/&\#103;/g/g;
  871:     $result =~ s/&\#104;/h/g;
  872:     $result =~ s/&\#105;/i/g;
  873:     $result =~ s/&\#106;/j/g;
  874:     $result =~ s/&\#107;/k/g;
  875:     $result =~ s/&\#108;/l/g;
  876:     $result =~ s/&\#109;/m/g;
  877:     $result =~ s/&\#110;/n/g;
  878:     $result =~ s/&\#111;/o/g;
  879:     $result =~ s/&\#112;/p/g;
  880:     $result =~ s/&\#113;/q/g;
  881:     $result =~ s/&\#114;/r/g;
  882:     $result =~ s/&\#115;/s/g;
  883:     $result =~ s/&\#116;/t/g;
  884:     $result =~ s/&\#117;/u/g;
  885:     $result =~ s/&\#118;/v/g;
  886:     $result =~ s/&\#119;/w/g;
  887:     $result =~ s/&\#120;/x/g;
  888:     $result =~ s/&\#121;/y/g;
  889:     $result =~ s/&\#122;/z/g;
  890:     $result =~ s/&\#123;/\\{/g;
  891:     $result =~ s/&\#124;/\|/g;
  892:     $result =~ s/&\#125;/\\}/g;
  893:     $result =~ s/&\#126;/\~/g;
  894:     $result =~ s/&\#131;/\\textflorin /g;
  895:     $result =~ s/&\#132;/\"/g;
  896:     $result =~ s/&\#133;/\$\\ldots\$/g;
  897:     $result =~ s/&\#134;/\$\\dagger\$/g;
  898:     $result =~ s/&\#135;/\$\\ddagger\$/g;
  899:     $result =~ s/&\#137;/\\textperthousand /g;
  900:     $result =~ s/&\#140;/{\\OE}/g;
  901:     $result =~ s/&\#147;/\`\`/g;
  902:     $result =~ s/&\#148;/\'\'/g;
  903:     $result =~ s/&\#149;/\$\\bullet\$/g;
  904:     $result =~ s/&\#150;/--/g;
  905:     $result =~ s/&\#151;/---/g;
  906:     $result =~ s/&\#152;/\$\\sim\$/g;
  907:     $result =~ s/&\#153;/\\texttrademark /g;
  908:     $result =~ s/&\#156;/\\oe/g;
  909:     $result =~ s/&\#159;/\\\"Y/g;
  910:     $result =~ s/&(\#160|nbsp);//g;
  911:     $result =~ s/&(\#161|iexcl);/!\`/g;
  912:     $result =~ s/&(\#162|cent);/\\textcent /g;
  913:     $result =~ s/&(\#163|pound);/\\pounds /g; 
  914:     $result =~ s/&(\#164|curren);/\\textcurrency /g;
  915:     $result =~ s/&(\#165|yen);/\\textyen /g;
  916:     $result =~ s/&(\#166|brvbar);/\\textbrokenbar /g;
  917:     $result =~ s/&(\#167|sect);/\\textsection /g;
  918:     $result =~ s/&(\#168|uml);/\\texthighdieresis /g;
  919:     $result =~ s/&(\#169|copy);/\\copyright /g;
  920:     $result =~ s/&(\#170|ordf);/\\textordfeminine /g;
  921:     $result =~ s/&(\#172|not);/\$\\neg\$/g;
  922:     $result =~ s/&(\#173|shy);/ - /g;
  923:     $result =~ s/&(\#174|reg);/\\textregistered /g;
  924:     $result =~ s/&(\#175|macr);/\$^{-}\$/g;
  925:     $result =~ s/&(\#176|deg);/\$^{\\circ}\$/g;
  926:     $result =~ s/&(\#177|plusmn);/\$\\pm\$/g;
  927:     $result =~ s/&(\#178|sup2);/\$^2\$/g;
  928:     $result =~ s/&(\#179|sup3);/\$^3\$/g;
  929:     $result =~ s/&(\#180|acute);/\\textacute /g;
  930:     $result =~ s/&(\#181|micro);/\$\\mu\$/g;
  931:     $result =~ s/&(\#182|para);/\\P/g;
  932:     $result =~ s/&(\#183|middot);/\$\\cdot\$/g;
  933:     $result =~ s/&(\#184|cedil);/\\c{\\strut}/g;
  934:     $result =~ s/&(\#185|sup1);/\$^1\$/g;
  935:     $result =~ s/&(\#186|ordm);/\\textordmasculine /g;
  936:     $result =~ s/&(\#188|frac14);/\\textonequarter /g;
  937:     $result =~ s/&(\#189|frac12);/\\textonehalf /g;
  938:     $result =~ s/&(\#190|frac34);/\\textthreequarters /g;
  939:     $result =~ s/&(\#191|iquest);/?\`/g;   
  940:     $result =~ s/&(\#192|Agrave);/\\\`{A}/g;  
  941:     $result =~ s/&(\#193|Aacute);/\\\'{A}/g; 
  942:     $result =~ s/&(\#194|Acirc);/\\^{A}/g;
  943:     $result =~ s/&(\#195|Atilde);/\\~{A}/g;
  944:     $result =~ s/&(\#196|Auml);/\\\"{A}/g; 
  945:     $result =~ s/&(\#197|Aring);/{\\AA}/g;
  946:     $result =~ s/&(\#198|AElig);/{\\AE}/g;
  947:     $result =~ s/&(\#199|Ccedil);/\\c{c}/g;
  948:     $result =~ s/&(\#200|Egrave);/\\\`{E}/g;  
  949:     $result =~ s/&(\#201|Eacute);/\\\'{E}/g;    
  950:     $result =~ s/&(\#202|Ecirc);/\\^{E}/g;
  951:     $result =~ s/&(\#203|Euml);/\\\"{E}/g;
  952:     $result =~ s/&(\#204|Igrave);/\\\`{I}/g;
  953:     $result =~ s/&(\#205|Iacute);/\\\'{I}/g;    
  954:     $result =~ s/&(\#206|Icirc);/\\^{I}/g;
  955:     $result =~ s/&(\#207|Iuml);/\\\"{I}/g;    
  956:     $result =~ s/&(\#209|Ntilde);/\\~{N}/g;
  957:     $result =~ s/&(\#210|Ograve);/\\\`{O}/g;
  958:     $result =~ s/&(\#211|Oacute);/\\\'{O}/g;
  959:     $result =~ s/&(\#212|Ocirc);/\\^{O}/g;
  960:     $result =~ s/&(\#213|Otilde);/\\~{O}/g;
  961:     $result =~ s/&(\#214|Ouml);/\\\"{O}/g;    
  962:     $result =~ s/&(\#215|times);/\$\\times\$/g;
  963:     $result =~ s/&(\#216|Oslash);/{\\O}/g;
  964:     $result =~ s/&(\#217|Ugrave);/\\\`{U}/g;    
  965:     $result =~ s/&(\#218|Uacute);/\\\'{U}/g;
  966:     $result =~ s/&(\#219|Ucirc);/\\^{U}/g;
  967:     $result =~ s/&(\#220|Uuml);/\\\"{U}/g;
  968:     $result =~ s/&(\#221|Yacute);/\\\'{Y}/g;
  969:     $result =~ s/&(\#223|szlig);/\\ss/g;
  970:     $result =~ s/&(\#224|agrave);/\\\`{a}/g;
  971:     $result =~ s/&(\#225|aacute);/\\\'{a}/g;
  972:     $result =~ s/&(\#226|acirc);/\\^{a}/g;
  973:     $result =~ s/&(\#227|atilde);/\\~{a}/g;
  974:     $result =~ s/&(\#228|auml);/\\\"{a}/g;
  975:     $result =~ s/&(\#229|aring);/{\\aa}/g;
  976:     $result =~ s/&(\#230|aelig);/{\\ae}/g;
  977:     $result =~ s/&(\#231|ccedil);/\\c{c}/g;
  978:     $result =~ s/&(\#232|egrave);/\\\`{e}/g;
  979:     $result =~ s/&(\#233|eacute);/\\\'{e}/g;
  980:     $result =~ s/&(\#234|ecirc);/\\^{e}/g;
  981:     $result =~ s/&(\#235|euml);/\\\"{e}/g;
  982:     $result =~ s/&(\#236|igrave);/\\\`{i}/g;
  983:     $result =~ s/&(\#237|iacute);/\\\'{i}/g;
  984:     $result =~ s/&(\#238|icirc);/\\^{i}/g;
  985:     $result =~ s/&(\#239|iuml);/\\\"{i}/g;
  986:     $result =~ s/&(\#240|eth);/\$\\partial\$/g;
  987:     $result =~ s/&(\#241|ntilde);/\\~{n}/g;
  988:     $result =~ s/&(\#242|ograve);/\\\`{o}/g;
  989:     $result =~ s/&(\#243|oacute);/\\\'{o}/g;
  990:     $result =~ s/&(\#244|ocirc);/\\^{o}/g;
  991:     $result =~ s/&(\#245|otilde);/\\~{o}/g;
  992:     $result =~ s/&(\#246|ouml);/\\\"{o}/g;
  993:     $result =~ s/&(\#247|divide);/\$\\div\$/g;
  994:     $result =~ s/&(\#248|oslash);/{\\o}/g;
  995:     $result =~ s/&(\#249|ugrave);/\\\`{u}/g; 
  996:     $result =~ s/&(\#250|uacute);/\\\'{u}/g;
  997:     $result =~ s/&(\#251|ucirc);/\\^{u}/g;
  998:     $result =~ s/&(\#252|uuml);/\\\"{u}/g;
  999:     $result =~ s/&(\#253|yacute);/\\\'{y}/g;
 1000:     $result =~ s/&(\#255|yuml);/\\\"{y}/g;
 1001:     $result =~ s/&\#952;/\$\\theta\$/g;
 1002: #Greek Alphabet
 1003:     $result =~ s/&(alpha|\#945);/\$\\alpha \$/g;
 1004:     $result =~ s/&(beta|\#946);/\$\\beta \$/g;
 1005:     $result =~ s/&(gamma|\#947);/\$\\gamma \$/g;
 1006:     $result =~ s/&(delta|\#948);/\$\\delta \$/g;
 1007:     $result =~ s/&(epsilon|\#949);/\$\\epsilon \$/g;
 1008:     $result =~ s/&(zeta|\#950);/\$\\zeta \$/g;
 1009:     $result =~ s/&(eta|\#951);/\$\\eta \$/g;
 1010:     $result =~ s/&(theta|\#952);/\$\\theta \$/g;
 1011:     $result =~ s/&(iota|\#953);/\$\\iota \$/g;
 1012:     $result =~ s/&(kappa|\#954);/\$\\kappa \$/g;
 1013:     $result =~ s/&(lambda|\#955);/\$\\lambda \$/g;
 1014:     $result =~ s/&(mu|\#956);/\$\\mu \$/g;
 1015:     $result =~ s/&(nu|\#957);/\$\\nu \$/g;
 1016:     $result =~ s/&(xi|\#958);/\$\\xi \$/g;
 1017:     $result =~ s/&(pi|\#960);/\$\\pi \$/g;
 1018:     $result =~ s/&(rho|\#961);/\$\\rho \$/g;
 1019:     $result =~ s/&(sigma|\#963);/\$\\sigma \$/g;
 1020:     $result =~ s/&(tau|\#964);/\$\\tau \$/g;
 1021:     $result =~ s/&(upsilon|\#965);/\$\\upsilon \$/g;
 1022:     $result =~ s/&(phi|\#966);/\$\\phi \$/g;
 1023:     $result =~ s/&(chi|\#967);/\$\\chi \$/g;
 1024:     $result =~ s/&(psi|\#968);/\$\\psi \$/g;
 1025:     $result =~ s/&(omega|\#969);/\$\\omega \$/g;
 1026:     $result =~ s/&(Gamma|\#915);/\$\\Gamma \$/g;
 1027:     $result =~ s/&(Delta|\#916);/\$\\Delta \$/g;
 1028:     $result =~ s/&(Theta|\#920);/\$\\Theta \$/g;
 1029:     $result =~ s/&(Lambda|\#923);/\$\\Lambda \$/g;
 1030:     $result =~ s/&(Xi|\#926);/\$\\Xi \$/g;
 1031:     $result =~ s/&(Pi|\#928);/\$\\Pi \$/g;
 1032:     $result =~ s/&(Sigma|\#931);/\$\\Sigma \$/g;
 1033:     $result =~ s/&(Upsilon|\#933);/\$\\Upsilon \$/g;
 1034:     $result =~ s/&(Phi|\#934);/\$\\Phi \$/g;
 1035:     $result =~ s/&(Psi|\#936);/\$\\Psi \$/g;
 1036:     $result =~ s/&(Omega|\#937);/\$\\Omega \$/g;
 1037:     return $result;
 1038: }
 1039: 
 1040: 
 1041:     sub page_format {
 1042: 	my ($papersize,$layout,$numberofcolumns) = @_; 
 1043: 	my ($textwidth,$textheight,$oddoffset,$evenoffset) = (0,0,0,0);
 1044: 	if ($papersize=~/Letter/) {
 1045: 	    if ($layout eq 'CAPA') {
 1046: 		if ($numberofcolumns == 1) {
 1047: 		    $textwidth = '18 cm';
 1048: 		    $textheight = '25.9 cm';
 1049: 		    $oddoffset = '-0.57 in';
 1050: 		    $evenoffset = '-0.57 in';
 1051: 		} elsif ($numberofcolumns == 2) {
 1052: 		    $textwidth = '93 mm';
 1053: 		    $textheight = '25.9 cm';
 1054: 		    $oddoffset = '-0.57 in';
 1055: 		    $evenoffset = '-0.57 in';
 1056: 		}
 1057: 	    } elsif ($layout eq 'CBI') {
 1058: 		if ($numberofcolumns eq '1') {
 1059: 		    $textwidth = '8.8 in';
 1060: 		    $textheight = '6.8 in';
 1061: 		    $oddoffset = '-40 pt';
 1062: 		    $evenoffset = '-60 pt';
 1063: 		} elsif ($numberofcolumns == 2) {
 1064: 		    $textwidth = '4.2 in';
 1065: 		    $textheight = '6.8 in';
 1066: 		    $oddoffset = '-40 pt';
 1067: 		    $evenoffset = '-60 pt';
 1068: 		}
 1069: 	    }
 1070: #    } elsif($papersize=~/Legal/) {
 1071: #    } elsif($papersize=~/Ledger/) {
 1072: #    } elsif($papersize=~/Executive/) {
 1073:     } elsif($papersize=~/A4/) {
 1074: 	    if ($layout eq 'CAPA') {
 1075: 		if ($numberofcolumns == 1) {
 1076: 		    $textwidth = '18 cm';
 1077: 		    $textheight = '28 cm';
 1078: 		    $oddoffset = '-0.57 in';
 1079: 		    $evenoffset = '-0.57 in';
 1080: 		} elsif ($numberofcolumns == 2) {
 1081: 		    $textwidth = '96 mm';
 1082: 		    $textheight = '2 cm';
 1083: 		    $oddoffset = '-0.57 in';
 1084: 		    $evenoffset = '-0.57 in';
 1085: 		}
 1086: 	    } elsif ($layout eq 'CBI') {
 1087: 		if ($numberofcolumns eq '1') {
 1088: 		    $textwidth = '8.5 in';
 1089: 		    $textheight = '7.7 in';
 1090: 		    $oddoffset = '-40 pt';
 1091: 		    $evenoffset = '-60 pt';
 1092: 		} elsif ($numberofcolumns == 2) {
 1093: 		    $textwidth = '3.9 in';
 1094: 		    $textheight = '7.7 in';
 1095: 		    $oddoffset = '-40 pt';
 1096: 		    $evenoffset = '-60 pt';
 1097: 		}
 1098: 	    }
 1099: #    } elsif($papersize=~/A3/) {
 1100: #    } elsif($papersize=~/A2/) {
 1101: #    } elsif($papersize=~/A5/) {
 1102: #    } elsif($papersize=~/A6/) {
 1103: 	}
 1104: 	return $textwidth,$textheight,$oddoffset,$evenoffset;
 1105: }
 1106: 
 1107: 
 1108: sub page_format_new {
 1109: #
 1110: #Correspondence between $papersize variable and real paper format:
 1111: # 0 - "Letter [8 1/2x11 in]"
 1112: # 1 - "Legal [8 1/2x14 in]"
 1113: # 2 - "Ledger/Tabloid [11x17 in]"
 1114: # 3 - "Executive [7 1/2x10 in]"
 1115: # 4 - "A2 [420x594 mm]"
 1116: # 5 - "A3 [297x420 mm]"
 1117: # 6 - "A4 [210x297 mm]"
 1118: # 7 - "A5 [148x210 mm]"
 1119: # 8 - "A6 [105x148 mm]"
 1120: # 
 1121:     my ($papersize,$layout,$numberofcolumns) = @_; 
 1122:     my ($textwidth,$textheight,$oddoffset,$evenoffset) = (0,0,0,0);
 1123:     if ($papersize eq '0') {
 1124: 	if ($layout eq 'book') {
 1125: 	    if ($numberofcolumns == 1) {
 1126: 		$textwidth = '18 cm';
 1127: 		$textheight = '25.9 cm';
 1128: 		$oddoffset = '-0.57 in';
 1129: 		$evenoffset = '-0.57 in';
 1130: 	    } elsif ($numberofcolumns == 2) {
 1131: 		$textwidth = '93 mm';
 1132: 		$textheight = '25.9 cm';
 1133: 		$oddoffset = '-0.57 in';
 1134: 		$evenoffset = '-0.57 in';
 1135: 	    }
 1136: 	} elsif ($layout eq 'album') {
 1137: 	    if ($numberofcolumns eq '1') {
 1138: 		$textwidth = '8.8 in';
 1139: 		$textheight = '6.8 in';
 1140: 		$oddoffset = '-40 pt';
 1141: 		$evenoffset = '-60 pt';
 1142: 	    } elsif ($numberofcolumns == 2) {
 1143: 		$textwidth = '4.2 in';
 1144: 		$textheight = '6.8 in';
 1145: 		$oddoffset = '-40 pt';
 1146: 		$evenoffset = '-60 pt';
 1147: 	    }
 1148: 	}
 1149: #    } elsif($papersize eq '1') {
 1150: #    } elsif($papersize eq '2') {
 1151: #    } elsif($papersize eq '3'/) {
 1152:     } elsif($papersize eq '6') {
 1153: 	if ($layout eq 'book') {
 1154: 	    if ($numberofcolumns == 1) {
 1155: 		$textwidth = '18 cm';
 1156: 		$textheight = '28 cm';
 1157: 		$oddoffset = '-0.57 in';
 1158: 		$evenoffset = '-0.57 in';
 1159: 	    } elsif ($numberofcolumns == 2) {
 1160: 		$textwidth = '96 mm';
 1161: 		$textheight = '2 cm';
 1162: 		$oddoffset = '-0.57 in';
 1163: 		$evenoffset = '-0.57 in';
 1164: 	    }
 1165: 	} elsif ($layout eq 'album') {
 1166: 	    if ($numberofcolumns eq '1') {
 1167: 		$textwidth = '8.5 in';
 1168: 		$textheight = '7.7 in';
 1169: 		$oddoffset = '-40 pt';
 1170: 		$evenoffset = '-60 pt';
 1171: 	    } elsif ($numberofcolumns == 2) {
 1172: 		$textwidth = '3.9 in';
 1173: 		$textheight = '7.7 in';
 1174: 		$oddoffset = '-40 pt';
 1175: 		$evenoffset = '-60 pt';
 1176: 	    }
 1177: 	}
 1178: #    } elsif($papersize eq '5') {
 1179: #    } elsif($papersize eq '4') {
 1180: #    } elsif($papersize eq '7') {
 1181: #    } elsif($papersize eq '8') {
 1182:     }
 1183:     return $textwidth,$textheight,$oddoffset,$evenoffset;
 1184: }
 1185: 
 1186: 
 1187: sub get_name {
 1188:     my ($uname,$udom)=@_;
 1189:     if (!defined($uname)) { $uname=$ENV{'user.name'}; }
 1190:     if (!defined($udom)) { $uname=$ENV{'user.domain'}; }
 1191:     my $plainname=&Apache::loncommon::plainname($uname,$udom);
 1192:     if ($plainname=~/^\s*$/) { $plainname=$uname; }
 1193:     return &Apache::lonxml::latex_special_symbols($plainname,undef,undef,
 1194: 						  'header');
 1195: }
 1196: 
 1197: sub page_format_transformation {
 1198:     my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment) = @_; 
 1199:     my ($textwidth,$textheight,$oddoffset,$evenoffset);
 1200: 	$assignment=~s/_/ /g;
 1201:         if ($numberofcolumns != 1) {
 1202:           ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$layout,$numberofcolumns);
 1203: 	} else {
 1204: 	  ($textwidth,$textheight,$oddoffset,$evenoffset) = ($ENV{'form.width'},$ENV{'form.height'},$ENV{'form.leftmargin'},$ENV{'form.leftmargin'});
 1205: 	}
 1206:     my $name = &get_name();
 1207:     if ($name =~ /^\s*$/) {
 1208: 	$name=&Apache::lonxml::latex_special_symbols($ENV{'user.name'},undef,
 1209: 						     undef,'header');
 1210:     }
 1211:     my $courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'course.'.$ENV{'request.course.id'}.'.description'}),'','','header');
 1212:     if ($layout eq 'CBI') {
 1213: 	    $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$oddoffset}\\setlength{\\evensidemargin}{$evenoffset}\\setlength{\\topmargin}{200pt}\\setlength{\\textwidth}{$textwidth}\\setlength{\\textheight}{$textheight}\\setlength{\\parindent}{20pt}\\setlength{\\marginparwidth}{90pt}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm} \\begin{document}\\setcounter{page}{1}\\noindent\\parbox{\\minipagewidth}{\\noindent\\fbox{\\textbf{$name}} \\hfill  $courseidinfo} \\vskip 5 mm /;
 1214:     } elsif ($layout eq 'CAPA') {
 1215: 	if ($choice ne 'All class print') { 
 1216: 		$text =~ s/\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{}\\lhead{\\textbf{$name} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1}/;
 1217: 	} else {
 1218: 	    $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\begin{document}\\voffset=-0\.8cm\\setcounter{page}{1}  \\vskip 5 mm /;
 1219: 
 1220: 	}
 1221:     }
 1222:     return $text;
 1223: }
 1224: 
 1225: 
 1226: sub page_format_transformation_new {
 1227:     my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment) = @_; 
 1228:     my ($textwidth,$textheight,$oddoffset,$evenoffset);
 1229: 	$assignment=~s/_/ /g;
 1230:         if ($numberofcolumns != 1) {
 1231:           ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format_new($papersize,$layout,$numberofcolumns);
 1232: 	} else {
 1233: 	  ($textwidth,$textheight,$oddoffset,$evenoffset) = ($ENV{'form.width'},$ENV{'form.height'},$ENV{'form.leftmargin'},$ENV{'form.leftmargin'});
 1234: 	}
 1235:     my $name = &get_name();
 1236:     if ($name =~ /^\s*$/) {
 1237: 	$name=&Apache::lonxml::latex_special_symbols($ENV{'user.name'},undef,
 1238: 						     undef,'header');
 1239:     }
 1240:     my $courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'course.'.$ENV{'request.course.id'}.'.description'}),'','','header');
 1241:     if ($layout eq 'album') {
 1242: 	    $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$oddoffset}\\setlength{\\evensidemargin}{$evenoffset}\\setlength{\\topmargin}{200pt}\\setlength{\\textwidth}{$textwidth}\\setlength{\\textheight}{$textheight}\\setlength{\\parindent}{20pt}\\setlength{\\marginparwidth}{90pt}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm} \\begin{document}\\setcounter{page}{1}\\noindent\\parbox{\\minipagewidth}{\\noindent\\fbox{\\textbf{$name}} \\hfill  $courseidinfo} \\vskip 5 mm /;
 1243:     } elsif ($layout eq 'book') {
 1244: 	if ($choice ne 'All class print') { 
 1245: 		$text =~ s/\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{}\\lhead{\\textbf{$name} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1}/;
 1246: 	} else {
 1247: 	    $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\begin{document}\\voffset=-0\.8cm\\setcounter{page}{1}  \\vskip 5 mm /;
 1248: 
 1249: 	}
 1250:     }
 1251:     return $text;
 1252: }
 1253: 
 1254: 
 1255: 
 1256: sub page_cleanup {
 1257:     my $result = shift;	
 1258:  
 1259:     $result =~ m/\\end{document}(\d*)$/;
 1260:     my $number_of_columns = $1;
 1261:     my $insert = '{';
 1262:     for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
 1263:     $insert .= '}';
 1264:     $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE\\endfirsthead\\endhead/$1$insert/g;
 1265:     $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
 1266:     return $result,$number_of_columns;
 1267: }
 1268: 
 1269: 
 1270: sub details_for_menu {
 1271: 
 1272:     my $name_of_resourse = $hash{'title_'.$hash{'ids_'.$ENV{'form.postdata'}}};
 1273:     my $symbolic = &Apache::lonnet::symbread($ENV{'form.postdata'});
 1274:     my ($map,$id,$resource)=split(/___/,$symbolic);
 1275:     $map=&Apache::lonnet::clutter($map);
 1276:     my $name_of_sequence;
 1277:     $name_of_sequence = $hash{'title_'.$hash{'ids_'.$map}};
 1278:     if ($name_of_sequence =~ /^\s*$/) {
 1279: 	$map =~ m|([^/]+)$|;
 1280: 	$name_of_sequence = $1;
 1281:     }
 1282:     my $name_of_map = $hash{'title_'.$hash{'ids_'.&Apache::lonnet::clutter($ENV{'request.course.uri'})}};
 1283:     if ($name_of_map =~ /^\s*$/) {
 1284: 	$ENV{'request.course.uri'} =~ m|([^/]+)$|;
 1285: 	$name_of_map = $1;
 1286:     }
 1287:     return ($name_of_resourse,$name_of_sequence,$name_of_map);
 1288: 
 1289: }
 1290: 
 1291: 
 1292: sub latex_corrections {
 1293: 
 1294:     my ($number_of_columns,$result) = @_;
 1295: 
 1296:     $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
 1297:     $result =~ s/\$number_of_columns/$number_of_columns/g;
 1298:     $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/;
 1299:     $result =~ s/(\\end{longtable}\s*)(\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
 1300:     $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
 1301: #-- LaTeX corrections     
 1302:     my $first_comment = index($result,'<!--',0);
 1303:     while ($first_comment != -1) {
 1304: 	my $end_comment = index($result,'-->',$first_comment);
 1305: 	substr($result,$first_comment,$end_comment-$first_comment+3) = '';
 1306: 	$first_comment = index($result,'<!--',$first_comment);
 1307:     }
 1308:     $result =~ s/^\s+$//gm; #remove empty lines
 1309:     $result =~ s/(\s)(\s+)/$1/g; #removes more than one empty space
 1310:     $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
 1311:     $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
 1312:     $result =~ s/{\\par }\s*\\\\/\\\\/gm;
 1313: 	$result =~ s/\\\\\s+\[/ \[/g;
 1314:     $result =~ s/\b__+\b/\\makebox\[1 cm\]\[b\]{\\hrulefill}/g;
 1315:     #conversion of html characters to LaTeX equivalents
 1316:     if ($result =~ m/&(\w+|#\d+);/) {
 1317: 	$result = &character_chart($result);
 1318:     }
 1319:     $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
 1320:     $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
 1321: 
 1322:     return $result;
 1323: }
 1324: 
 1325: 
 1326: sub output_data_new {
 1327:     my ($r,$helper) = @_;
 1328:     $r->print(<<ENDPART);
 1329: <html>
 1330: <head>
 1331: <title>LON-CAPA output for printing</title>
 1332: </head>
 1333: <body bgcolor="FFFFFF">
 1334: <hr>
 1335: ENDPART
 1336: 
 1337:     my $format_from_helper = $helper->{'VARS'}->{'FORMAT'};
 1338:     my ($result,$selectionmade) = ('','');
 1339:     my $number_of_columns = 1; #used only for pages to determine the width of the cell
 1340:     my @temporary_array=split /\|/,$format_from_helper;
 1341:     my ($laystyle,$numberofcolumns,$papersize)=@temporary_array;
 1342:     if ($laystyle eq 'L') {
 1343: 	$laystyle='album';
 1344:     } else {
 1345: 	$laystyle='book';
 1346:     }
 1347:     my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format_new($papersize,$laystyle,$numberofcolumns);
 1348:     my $assignment =  $ENV{'form.assignment'};
 1349:     my $LaTeXwidth; 
 1350:     if ($textwidth=~/(\d+)\s*cm/) {
 1351: 	$LaTeXwidth = $1*10;
 1352:     } elsif ($textwidth=~/(\d+)\s*mm/) {
 1353: 	$LaTeXwidth = $1;
 1354:     } elsif ($textwidth=~/(\d+)\s*in/) {
 1355: 	$LaTeXwidth = $1*25.4;
 1356:     }
 1357:     $LaTeXwidth.=' mm';
 1358:     
 1359:     if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'current_document') {
 1360:       #-- single document - problem, page, html, xml, ...
 1361: 	my $currentURL;
 1362: 	if ($helper->{'VARS'}->{'construction'} ne '1') {
 1363:             #prins published resource
 1364: 	    $currentURL=$helper->{'VARS'}->{'postdata'};
 1365: 	} else {
 1366:             #prins resource from the construction space
 1367: 	    $currentURL=$helper->{'VARS'}->{'filename'};
 1368: 	    $currentURL=~s/\/home\//\/~/;
 1369: 	    $currentURL=~s/public_html\///;
 1370: 	}
 1371: 	$selectionmade = 1;
 1372: 	if ($currentURL=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
 1373: 	    my %moreenv;
 1374: 	    $moreenv{'request.filename'}=$currentURL;
 1375: 	    my %form;
 1376: 	    $form{'grade_target'}='tex';
 1377: 	    $form{'textwidth'}=$LaTeXwidth;
 1378: 	    my $rndseed=time;
 1379: 	    $form{'rndseed'}=$rndseed;
 1380: 	    &Apache::lonnet::appenv(%moreenv);
 1381: 	    my $texversion=&Apache::lonnet::ssi($currentURL,%form);
 1382: 	    &Apache::lonnet::delenv('form.counter');
 1383: 	    &Apache::lonnet::delenv('request.filename');
 1384: 	    if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
 1385: 		my %form;
 1386: 		$form{'grade_target'}='answer';
 1387: 		$form{'answer_output_mode'}='tex';
 1388: 		$form{'rndseed'}=$rndseed;
 1389: 		my $answer=&Apache::lonnet::ssi($currentURL,%form);
 1390: 		$texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
 1391: 	    }
 1392: 	    $result .= $texversion;
 1393: 	    if ($currentURL=~m/\.page\s*$/) {
 1394: 		($result,$number_of_columns) = &page_cleanup($result);
 1395: 	    }
 1396: 	} else {
 1397: #	  $result='\documentclass[letterpaper]{article}\usepackage{calc}\begin{document}Printout of this type of document is currently not supported: ';
 1398: #	  if ($ENV{'form.url'}=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) {
 1399: #	      $result.=$1;
 1400: #	  } else {
 1401: #	      $result.=$ENV{'form.url'};
 1402: #	  }
 1403: #	  $result.=' \end{document}'
 1404: 	}
 1405:     } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') or
 1406:              ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
 1407:              ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems')) { 
 1408:         #-- produce an output string
 1409: 	my $flag_latex_header_remove = 'NO';
 1410: 	my $flag_page_in_sequence = 'NO';
 1411: 	my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
 1412: 	for (my $i=0;$i<=$#master_seq;$i++) {
 1413: 	    $master_seq[$i]=~/___\d+___(.*)$/;
 1414: 	    my $urlp='/res/'.$1;
 1415: 	    if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') {
 1416: 		$selectionmade = 2;
 1417: 	    } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') {
 1418: 		$selectionmade = 3;
 1419: 	    } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') {
 1420: 		$selectionmade = 4;
 1421: 	    }
 1422: 	    my %form;	   
 1423: 	    $form{'grade_target'}='tex';
 1424: 	    $form{'textwidth'}=$LaTeXwidth;
 1425: 	    $form{'symb'}=$master_seq[$i];
 1426: 	    #&Apache::lonnet::logthis("Trying to get $urlp with symb $master_seq[$i]");
 1427: 	    my $texversion=&Apache::lonnet::ssi($urlp,%form);
 1428: 	    if ($urlp=~/\.page$/) {
 1429: 		($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
 1430: 		if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;} 
 1431: 		$texversion =~ s/\\end{document}\d*/\\end{document}/;
 1432: 		$flag_page_in_sequence = 'YES';
 1433: 	    } 
 1434: 	    if ($flag_latex_header_remove ne 'NO') {
 1435: 		$texversion = &latex_header_footer_remove($texversion);
 1436: 	    } else {
 1437: 		$texversion =~ s/\\end{document}//;
 1438: 	    }
 1439: 	    if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
 1440: 		my %form;
 1441: 		$form{'grade_target'}='answer';
 1442: 		$form{'answer_output_mode'}='tex';
 1443: 		my $answer=&Apache::lonnet::ssi($urlp,%form);
 1444: 		$texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
 1445: 	    }
 1446: 	    $result .= $texversion;         
 1447: 	    $flag_latex_header_remove = 'YES';   
 1448: 	}
 1449: 	&Apache::lonnet::delenv('form.counter');
 1450: 	if ($flag_page_in_sequence eq 'YES') {$result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;}	
 1451: 	$result .= '\end{document}';
 1452:      } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') { 
 1453:      #-- prints assignments for whole class or for selected students  
 1454: 	 $selectionmade=5;
 1455: 	 my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
 1456: 	 my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
 1457: 	 #loop over students
 1458: 	 my $flag_latex_header_remove = 'NO'; 
 1459: 	 my %moreenv;
 1460: 	 $moreenv{'form.textwidth'}=$LaTeXwidth;
 1461: 	 &Apache::lonnet::appenv(%moreenv);
 1462: 	 my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1);
 1463: 	 foreach my $person (@students) {
 1464: 	    my $current_output = ''; 
 1465: #	    my ($usersection,$username,$userdomain) = split /:/,$person;
 1466: 	    my ($username,$userdomain) = split /:/,$person;
 1467: 	    my $fullname = &get_name($username,$userdomain);
 1468:             #goes through all resources, checks if they are available for current student, and produces output   
 1469: 	    foreach my $curresline (@master_seq)  {
 1470: 		if ($curresline=~ m/\.(problem|exam|quiz|assess|survey|form|library)$/) {
 1471: 		    my ($map,$id,$res_url) = split(/___/,$curresline);
 1472: 		    if (&Apache::lonnet::allowed('bre',$res_url)) {
 1473: 			my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,
 1474:                                                                         $ENV{'request.course.id'},'tex');
 1475: 			if ($flag_latex_header_remove eq 'YES') {
 1476: 			    $rendered = &latex_header_footer_remove($rendered);
 1477: 			} else {
 1478: 			    $rendered =~ s/\\end{document}//;
 1479: 			}
 1480: 			$current_output .= $rendered;
 1481: 		    }
 1482: 		    $flag_latex_header_remove = 'YES';
 1483: 		}
 1484: 	    }
 1485: 	    my $courseidinfo = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
 1486: 	    if ($current_output=~/\\documentclass/) {
 1487: 		$current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{} \\begin{document}\\noindent\\lhead{\\textit{\\textbf{$fullname}} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}\\vskip 3 mm /;
 1488: 	    } else {
 1489: 		my $blanspages = '';
 1490: 		for (my $j=0;$j<$helper->{'VARS'}->{'EMPTY_PAGES'};$j++) {$blanspages.='\clearpage\strut\clearpage';}
 1491: 		$current_output = '\strut\\newline\\noindent\\makebox[\\textwidth/$number_of_columns][b]{\\hrulefill}\\newline\\noindent{\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License }\\newpage \\vskip 3mm'.$blanspages.'\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$fullname.'}} - '.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}\hskip 1.4in } \vskip 5 mm '.$current_output;
 1492: 	    }
 1493: 	    $result .= $current_output;
 1494: 	    &Apache::lonnet::delenv('form.counter');	    
 1495: 	    &Apache::lonxml::init_counter(); 
 1496: 	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
 1497: 						    'last student '.$fullname);
 1498: 	}
 1499: 	&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 1500: 	$result .= '\end{document}';
 1501: 	&Apache::lonnet::delenv('form.textwidth');
 1502:     } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {      
 1503:     #prints selected problems from the subdirectory 
 1504: 	$selectionmade = 6;
 1505:         my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
 1506: 	@list_of_files=sort @list_of_files;
 1507: 	my $flag_latex_header_remove = 'NO';  
 1508: 	for (my $i=0;$i<=$#list_of_files;$i++) {
 1509: 	    my $urlp = $list_of_files[$i];
 1510: 	    if ($urlp=~/\//) {
 1511: 		my %form;
 1512: 		$form{'grade_target'}='tex';
 1513: 		$form{'textwidth'}=$LaTeXwidth;
 1514: 		if ($urlp =~ m|/home/([^/]+)/public_html|) {
 1515: 		    $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
 1516: 		} else {
 1517: 		    $urlp =~ s|^/home/httpd/html||;
 1518: 		}
 1519: 		my $texversion=&Apache::lonnet::ssi($urlp,%form);
 1520:                 #this chunck is responsible for printing the path to problem
 1521: 		my $newurlp = '';
 1522: 		my $HowMany = length($urlp)*2;
 1523: 		if ($HowMany > $LaTeXwidth) {
 1524: 		    my @temporrary = split '/',$urlp;
 1525: 		    my $HowManyNew = 0;
 1526: 		    for (my $ii=0;$ii<=$#temporrary;$ii++) {
 1527: 			if ($temporrary[$ii] ne '') {
 1528: 			    $HowManyNew += length($temporrary[$ii])*2;
 1529: 			    if ($HowManyNew < $LaTeXwidth ) {
 1530: 				$newurlp .=  '/'.$temporrary[$ii];
 1531: 			    } else {
 1532: 				$HowManyNew = 0;
 1533: 				$newurlp .=  '|\vskip -1 mm \noindent \verb|';
 1534: 				$ii--;
 1535: 			    }
 1536: 			}
 1537: 		    }
 1538: 		}
 1539: 		$texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 {\\small\\noindent\\verb|$newurlp\|\\vskip 0 mm}/;
 1540: 		if ($flag_latex_header_remove ne 'NO') {
 1541: 		    $texversion = &latex_header_footer_remove($texversion);
 1542: 		} else {
 1543: 		    $texversion =~ s/\\end{document}//;
 1544: 		}
 1545: 		$result .= $texversion;
 1546: 	    }
 1547: 	    $flag_latex_header_remove = 'YES';  
 1548: 	}
 1549: 	$result .= '\end{document}';      	
 1550:     }
 1551: #-------------------------------------------------------- corrections for the different page formats
 1552:     $result = &page_format_transformation_new($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'});
 1553: #    if ($layout eq 'CBI') {
 1554: #        $laystyle = 'album';
 1555: #    }
 1556:     $result = &latex_corrections($number_of_columns,$result);
 1557: #    #changes page's parameters for the one column output 
 1558: #    if ($ENV{'form.numberofcolumns'} == 1) {
 1559: #	$result =~ s/\\textwidth= 9cm/\\textwidth= $ENV{'form.width'}/;
 1560: #	$result =~ s/\\textheight 25\.9cm/\\textheight $ENV{'form.height'}/;
 1561: #	$result =~ s/\\evensidemargin = -0\.57in/\\evensidemargin= $ENV{'form.leftmargin'}/;
 1562: #	$result =~ s/\\oddsidemargin = -0\.57in/\\oddsidemargin= $ENV{'form.leftmargin'}/;
 1563: #    }
 1564: #-- writing .tex file in prtspool 
 1565:     my $temp_file;
 1566:     my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
 1567:     unless ($temp_file = Apache::File->new('>'.$filename)) {
 1568: 	$r->log_error("Couldn't open $filename for output $!");
 1569: 	return SERVER_ERROR; 
 1570:     } 
 1571:     print $temp_file $result;
 1572: 
 1573: #<meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle&$numberofcolumns&$selectionmade">
 1574: $r->print(<<FINALEND);
 1575: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle&$numberofcolumns&$selectionmade">
 1576: </body>
 1577: </html>
 1578: FINALEND
 1579: }
 1580: 
 1581: 
 1582: 
 1583: sub handler {
 1584: 
 1585:     my $r = shift;
 1586:     my $helper;
 1587: 
 1588:     # A hook for me to work without disturbing Alex.
 1589:     if (!$ENV{'form.jeremy'}) {
 1590:         my $result = printHelper($r);
 1591:         if (!ref($result)) {
 1592:             return $result;
 1593:         }
 1594:         $helper = $result;
 1595: 	
 1596: 	
 1597: 
 1598: 	my $key; 
 1599: 	foreach $key (keys %{$helper->{'VARS'}}) {
 1600: 	    $r->print(' '.$key.'->'.$helper->{'VARS'}->{$key}.'<-<br />');
 1601: 	}
 1602: #	return OK;
 1603: 	
 1604: 	
 1605: 	&output_data_new($r,$helper);
 1606: 
 1607: 
 1608: 
 1609: 
 1610: 
 1611: 
 1612:     return OK;
 1613:     }
 1614: #    my $loaderror=&Apache::lonnet::overloaderror($r);
 1615: #    if ($loaderror) { return $loaderror; }
 1616: #    $loaderror=
 1617: #       &Apache::lonnet::overloaderror($r,
 1618: #         $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
 1619: #    if ($loaderror) { return $loaderror; }
 1620: 
 1621:     $r->content_type('text/html');
 1622:     $r->send_http_header;
 1623:     $r->print(&Apache::loncommon::bodytag("Printing"));
 1624: 
 1625:     if ($ENV{'request.course.id'}) {
 1626: 	my $fn=$ENV{'request.course.fn'};
 1627: 	tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);
 1628:     }
 1629: 
 1630: #-- start form
 1631:     &headerform($r);
 1632: #-- menu for output
 1633:     unless  ($ENV{'form.phase'}) {
 1634: 	&menu_for_output($r);
 1635:     }
 1636: #-- additional menu for class printing
 1637:      if ($ENV{'form.phase'} eq 'two') {
 1638: 	 if($ENV{'form.choice'} eq 'Standard LaTeX output for whole primary sequence') {
 1639: 	     &sequence_content_menu(0,$r);
 1640: 	 } elsif($ENV{'form.choice'} eq 'Standard LaTeX output for the primary sequence') {
 1641: 	     &sequence_content_menu(1,$r);
 1642: 	 } elsif($ENV{'form.choice'} eq 'All class print') {
 1643: 	     &additional_class_menu($r);
 1644: 	 } elsif($ENV{'form.choice'} eq 'Subdirectory print') {
 1645: 	     &problem_choice_menu($r);
 1646: 	 } else {
 1647: 	     $ENV{'form.phase'} = 'three';
 1648: 	 }
 1649:      }
 1650: #-- additional menu for page layout (one column case)
 1651:     if ($ENV{'form.phase'} eq 'three') {
 1652: 	if($ENV{'form.numberofcolumns'} == 1) {
 1653: 	    &additional_print_menu($r);
 1654: 	} else {
 1655: 	    $ENV{'form.phase'} = 'four';
 1656: 	}
 1657:     }
 1658: #-- core part 
 1659:     if ($ENV{'form.phase'} eq 'four') {
 1660: 	&output_data($r);
 1661:     }	
 1662:     untie %hash;
 1663:     return OK;
 1664:    
 1665: } 
 1666: 
 1667: use Apache::lonhelper;
 1668: 
 1669: sub printHelper {
 1670:     my $r = shift;
 1671: 
 1672:     if ($ENV{'request.course.id'}) {
 1673: 	my $fn=$ENV{'request.course.fn'};
 1674: 	tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);
 1675:     }
 1676: 
 1677:     if ($r->header_only) {
 1678:         if ($ENV{'browser.mathml'}) {
 1679:             $r->content_type('text/xml');
 1680:         } else {
 1681:             $r->content_type('text/html');
 1682:         }
 1683:         $r->send_http_header;
 1684:         return OK;
 1685:     }
 1686: 
 1687:     # Send header, nocache
 1688:     if ($ENV{'browser.mathml'}) {
 1689:         $r->content_type('text/xml');
 1690:     } else {
 1691:         $r->content_type('text/html');
 1692:     }
 1693:     &Apache::loncommon::no_cache($r);
 1694:     $r->send_http_header;
 1695:     $r->rflush();
 1696: 
 1697:     # Unfortunately, this helper is so complicated we have to
 1698:     # write it by hand
 1699: 
 1700:     Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
 1701:     
 1702:     my $helper = Apache::lonhelper::helper->new("Printing Wizard");
 1703:     $helper->declareVar('symb');
 1704:     $helper->declareVar('postdata');    
 1705:     $helper->declareVar('filename');
 1706:     $helper->declareVar('construction');
 1707:     
 1708:     # This will persistently load in the data we want from the
 1709:     # very first screen.
 1710:     # Detect whether we're coming from construction space
 1711:     if ($ENV{'form.postdata'} =~ /http:\/\// ) {
 1712:         $ENV{'form.postdata'} =~ /http:\/\/[a-zA-Z.]+\/~([a-zA-Z0-9]+)\/(.*)/;
 1713:         $helper->{VARS}->{'filename'} = "/home/$1/public_html/$2";
 1714:         $helper->{VARS}->{'construction'} = 1;
 1715:     } else {
 1716:         if ($ENV{'form.postdata'}) {
 1717:             $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($ENV{'form.postdata'});
 1718:         }
 1719:         if ($ENV{'form.symb'}) {
 1720:             $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
 1721:         }
 1722:         if ($ENV{'form.url'}) {
 1723:             $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
 1724:         }
 1725:     }
 1726: 
 1727:     if ($ENV{'form.symb'}) {
 1728:         $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
 1729:     }
 1730:     if ($ENV{'form.url'}) {
 1731:         $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
 1732: 
 1733:     }
 1734:     
 1735:     my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu;
 1736:     $helper->{VARS}->{'assignment'} = $sequenceTitle;
 1737: 
 1738:     
 1739:     # Extract map
 1740:     my $symb = $helper->{VARS}->{'symb'};
 1741:     my ($map, $id, $url);
 1742:     my $subdir;
 1743: 
 1744:     # Get the resource name from construction space
 1745:     if ($helper->{VARS}->{'construction'}) {
 1746:         $resourceTitle = substr($helper->{VARS}->{'filename'}, 
 1747:                                 rindex($helper->{VARS}->{'filename'}, '/')+1);
 1748:         $subdir = substr($helper->{VARS}->{'filename'},
 1749:                          0, rindex($helper->{VARS}->{'filename'}, '/') + 1);
 1750:     } else {
 1751:         ($map, $id, $url) = split(/___/, $symb);
 1752:         $helper->{VARS}->{'postdata'} = Apache::lonnet::clutter($url);
 1753: 
 1754:         if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
 1755:             my $url = $helper->{VARS}->{'postdata'};
 1756:             $resourceTitle = substr($url, rindex($url, '/') + 1);
 1757:         }
 1758:         $subdir = &Apache::lonnet::filelocation("", $url);
 1759:     }
 1760: 
 1761:     Apache::lonhelper::registerHelperTags();
 1762: 
 1763:     # "Delete everything after the last slash."
 1764:     $subdir =~ s|/[^/]+$||;
 1765:     if (not $helper->{VARS}->{'construction'}) {
 1766: 	$subdir='/home/httpd/html/res/'.$subdir;
 1767:     }
 1768: 
 1769: 
 1770:     # What can be printed is a very dynamic decision based on
 1771:     # lots of factors. So we need to dynamically build this list.
 1772:     # To prevent security leaks, states are only added to the wizard
 1773:     # if they can be reached, which ensures manipulating the form input
 1774:     # won't allow anyone to reach states they shouldn't have permission
 1775:     # to reach.
 1776: 
 1777:     # printChoices is tracking the kind of printing the user can
 1778:     # do, and will be used in a choices construction later.
 1779:     # In the meantime we will be adding states and elements to
 1780:     # the helper by hand.
 1781:     my $printChoices = [];
 1782:     my $paramHash;
 1783: 
 1784:     if ($resourceTitle) {
 1785:         push @{$printChoices}, ["<b>$resourceTitle</b> (prints what you just saw on the screen)", 'current_document', 'PAGESIZE'];
 1786:     }
 1787: 
 1788:     $r->print($helper->{VARS}->{'postdata'});
 1789: 
 1790:     # If we're in a sequence...
 1791:     if ($helper->{'VARS'}->{'construction'} ne '1') {
 1792:         # Allow problems from sequence
 1793:         push @{$printChoices}, ["Problem(s) from <b>$sequenceTitle</b>", 'map_problems', 'CHOOSE_PROBLEMS'];
 1794:         # Allow all resources from sequence
 1795:         push @{$printChoices}, ["Everything (problem(s), page(s), html/xml file(s)) from <b>$sequenceTitle</b>", 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];
 1796: 
 1797:         my $isProblem = '$res->is_problem();';
 1798:         my $isProblemOrMap = '$res->is_problem() || $res->is_map()';
 1799:         my $isNotMap = '!$res->is_map();';
 1800:         my $symb = '$res->symb();';
 1801:         my $helperFragment = <<HELPERFRAGMENT;
 1802:   <state name="CHOOSE_PROBLEMS" title="Select Problem(s) to print">
 1803:     <message>(mark them then click "next" button) <br /></message>
 1804:     <resource variable="RESOURCES" multichoice="1" toponly='1'>
 1805:       <nextstate>PAGESIZE</nextstate>
 1806:       <filterfunc>return $isProblem</filterfunc>
 1807:       <mapurl>$map</mapurl>
 1808:       <valuefunc>return $symb</valuefunc>
 1809:       </resource>
 1810:     </state>
 1811: 
 1812:   <state name="CHOOSE_PROBLEMS_HTML" title="Select Resource(s) to print">
 1813:     <message>(mark them then click "next" button) <br /></message>
 1814:     <resource variable="RESOURCES" multichoice="1" toponly='1'>
 1815:       <nextstate>PAGESIZE</nextstate>
 1816:       <filterfunc>return $isNotMap;</filterfunc>
 1817:       <mapurl>$map</mapurl>
 1818:       <valuefunc>return $symb</valuefunc>
 1819:       </resource>
 1820:     </state>
 1821: HELPERFRAGMENT
 1822: 
 1823:         &Apache::lonxml::xmlparse($r, 'helper', $helperFragment); 
 1824:     }
 1825: 
 1826:     # If the user is priviledged, allow them to print all 
 1827:     # problems in the course, optionally for selected students
 1828:     if (($ENV{'request.role'}=~m/^cc\./ or $ENV{'request.role'}=~m/^in\./ or $ENV{'request.role'}=~m/^ta\./) and ($helper->{VARS}->{'postdata'}=~/\/res\//)) { 
 1829:         push @{$printChoices}, ['<b>Problems</b> in this course', 'all_problems', 'ALL_PROBLEMS'];
 1830:         push @{$printChoices}, ["Problems from <b>$sequenceTitle</b> for selected students", 'problems_for_students', 'CHOOSE_STUDENTS'];
 1831: 
 1832:         my $isProblem = '$res->is_problem();';
 1833:         my $isProblemOrMap = '$res->is_problem() || $res->is_map()';
 1834:         my $symb = '$res->symb();';
 1835:         &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
 1836:   <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
 1837:     <message>(mark them then click "next" button) <br /></message>
 1838:     <resource variable="RESOURCES" multichoice="1">
 1839:       <nextstate>PAGESIZE</nextstate>
 1840:       <filterfunc>return $isProblemOrMap</filterfunc>
 1841:       <choicefunc>return $isProblem</choicefunc>
 1842:       <valuefunc>return $symb</valuefunc>
 1843:       </resource>
 1844:     </state>
 1845: 
 1846:   <state name="CHOOSE_STUDENTS" title="Choose Students whose assignments you want to print">
 1847:     <message>(do not forget to select assignment itself - make another selection below) <br /></message>
 1848:     <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" />
 1849:     <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
 1850:     <resource variable="RESOURCES" multichoice="1">
 1851:       <filterfunc>return $isProblem</filterfunc>
 1852:       <mapurl>$map</mapurl>
 1853:       <valuefunc>return $symb</valuefunc>
 1854:       </resource>
 1855:     <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
 1856:     <choices variable="EMPTY_PAGES">
 1857:       <choice computer='0'>Print students assignments without separations (as uniform flow)</choice>
 1858:       <choice computer='1'>Start student assignment from new page (add pagefeed after each student)</choice>
 1859:       <choice computer='2'>Add one emty page after each student assignment</choice> 
 1860:       <choice computer='3'>Add two emty page after each student assignment</choice> 
 1861:       </choices>
 1862:     </state>
 1863: CHOOSE_STUDENTS
 1864:     }
 1865: 
 1866:     # FIXME: That RE should come from a library somewhere.
 1867:     if (((&Apache::lonnet::allowed('bre',$subdir) eq 'F') and ($helper->{VARS}->{'postdata'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)/)) or defined $helper->{'VARS'}->{'construction'}) {    
 1868:         push @{$printChoices}, ["Problems from current subdirectory <b>$subdir</b>", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
 1869:         
 1870:         my $f = '$filename';
 1871:         my $xmlfrag = <<CHOOSE_FROM_SUBDIR;
 1872:   <state name="CHOOSE_FROM_SUBDIR" title="Select File(s) from <b><small>$subdir</small></b> to print">
 1873:     <message>(mark them then click "next" button) <br /></message>
 1874:     <files variable="FILES" multichoice='1'>
 1875:       <nextstate>PAGESIZE</nextstate>
 1876:       <filechoice>return '$subdir';</filechoice>
 1877: CHOOSE_FROM_SUBDIR
 1878:         
 1879:         $xmlfrag .= <<'CHOOSE_FROM_SUBDIR';
 1880:       <filefilter>return $filename =~ 
 1881:            m/^[^\.]+\.(problem|exam|quiz|assess|survey|form|library)$/;
 1882:       </filefilter>
 1883:       </files>
 1884:     </state>
 1885: CHOOSE_FROM_SUBDIR
 1886:         &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
 1887:     }
 1888: 
 1889:     # Generate the first state, to select which resources get printed.
 1890:     Apache::lonhelper::state->new("START", "What do you want to print? Make a choice.");
 1891:     $paramHash = Apache::lonhelper::getParamHash();
 1892:     $paramHash->{MESSAGE_TEXT} = "";
 1893:     Apache::lonhelper::message->new();
 1894:     $paramHash = Apache::lonhelper::getParamHash();
 1895:     $paramHash->{'variable'} = 'PRINT_TYPE';
 1896:     $helper->declareVar('PRINT_TYPE');
 1897:     $paramHash->{CHOICES} = $printChoices;
 1898:     Apache::lonhelper::choices->new();
 1899: 
 1900:     if (($ENV{'request.role.adv'} and &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) or 
 1901: 	($helper->{VARS}->{'construction'} eq '1')) {
 1902:         $paramHash = Apache::lonhelper::getParamHash();
 1903:         $paramHash->{MESSAGE_TEXT} = "<br /><big><b><i>Next option is available only for advanced users:</i></b></big><br />";
 1904:         Apache::lonhelper::message->new();
 1905:         $paramHash = Apache::lonhelper::getParamHash();
 1906: 	$paramHash->{'variable'} = 'ANSWER_TYPE';   
 1907: 	$helper->declareVar('ANSWER_TYPE');         
 1908:         $paramHash->{CHOICES} = [
 1909:                                    ['Print without answer', 'yes'],
 1910:                                    ['Print with answers', 'no'] ];
 1911:         Apache::lonhelper::choices->new();
 1912:     }
 1913: 
 1914:     Apache::lonprintout::page_format_state->new("FORMAT");
 1915: 
 1916:     # Generate the PAGESIZE state which will offer the user the margin
 1917:     # choices if they select one column
 1918:     Apache::lonhelper::state->new("PAGESIZE", "Set Margins");
 1919:     Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL');
 1920: 
 1921: 
 1922:     $helper->process();
 1923: 
 1924:     # MANUAL BAILOUT CONDITION:
 1925:     # If we're in the "final" state, bailout and return to handler
 1926:     if ($helper->{STATE} eq 'FINAL') {
 1927:         return $helper;
 1928:     }    
 1929: 
 1930:     $r->print($helper->display());
 1931: 
 1932:     Apache::lonhelper::unregisterHelperTags();
 1933: 
 1934:     untie %hash;
 1935: 
 1936:     return OK;
 1937: }
 1938: 
 1939: 
 1940: 1;
 1941: 
 1942: package Apache::lonprintout::page_format_state;
 1943: 
 1944: =pod
 1945: 
 1946: =head1 Helper element: page_format_state
 1947: 
 1948: See lonhelper.pm documentation for discussion of the helper framework.
 1949: 
 1950: Apache::lonprintout::page_format_state is an element that gives the 
 1951: user an opportunity to select the page layout they wish to print 
 1952: with: Number of columns, portrait/landscape, and paper size. If you 
 1953: want to change the paper size choices, change the @paperSize array 
 1954: contents in this package.
 1955: 
 1956: page_format_state is always directly invoked in lonprintout.pm, so there
 1957: is no tag interface. You actually pass parameters to the constructor.
 1958: 
 1959: =over 4
 1960: 
 1961: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
 1962: 
 1963: =back
 1964: 
 1965: =cut
 1966: 
 1967: use Apache::lonhelper;
 1968: 
 1969: no strict;
 1970: @ISA = ("Apache::lonhelper::element");
 1971: use strict;
 1972: 
 1973: my $maxColumns = 2;
 1974: my @paperSize = ("Letter [8 1/2x11 in]", "Legal [8 1/2x14 in]", 
 1975:                  "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]",
 1976:                  "A2 [420x594 mm]", "A3 [297x420 mm]", "A4 [210x297 mm]", 
 1977:                  "A5 [148x210 mm]", "A6 [105x148 mm]" );
 1978: 
 1979: # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
 1980: #                   Paper type
 1981: 
 1982: sub new { 
 1983:     my $self = Apache::lonhelper::element->new();
 1984: 
 1985:     shift;
 1986: 
 1987:     $self->{'variable'} = shift;
 1988:     my $helper = Apache::lonhelper::getHelper();
 1989:     $helper->declareVar($self->{'variable'});
 1990:     bless($self);
 1991:     return $self;
 1992: }
 1993: 
 1994: sub render {
 1995:     my $self = shift;
 1996:     my $helper = Apache::lonhelper::getHelper();
 1997:     my $result = '';
 1998:     my $var = $self->{'variable'};
 1999: 
 2000:     $result .= <<STATEHTML;
 2001: 
 2002: <p><big><i><b>What page format do you prefer?</b></i></big></p>
 2003: <table cellpadding="3">
 2004:   <tr>
 2005:     <td align="center"><b>Page layout</b></td>
 2006:     <td align="center"><b>Number of columns</b></td>
 2007:     <td align="center"><b>Paper type</b></td>
 2008:   </tr>
 2009:   <tr>
 2010:     <td>
 2011:       <input type="radio" name="${var}.layout" value="L" /> Landscape<br />
 2012:       <input type="radio" name="${var}.layout" value="P" checked='1'  /> Portrait
 2013:     </td>
 2014:     <td align="center">
 2015:       <select name="${var}.cols">
 2016: STATEHTML
 2017: 
 2018:     my $i;
 2019:     for ($i = 1; $i <= $maxColumns; $i++) {
 2020:         if ($i == 2) {
 2021:             $result .= "<option value='$i' selected>$i</option>\n";
 2022:         } else {
 2023:             $result .= "<option value='$i'>$i</option>\n";
 2024:         }
 2025:     }
 2026: 
 2027:     $result .= "</select></td><td>\n";
 2028:     $result .= "<select name='${var}.paper'>\n";
 2029: 
 2030:     $i = 0;
 2031:     foreach (@paperSize) {
 2032:         if ($i == 0) {
 2033:             $result .= "<option selected value='$i'>" . $paperSize[$i] . "</option>\n";
 2034:         } else {
 2035:             $result .= "<option value='$i'>" . $paperSize[$i] . "</option>\n";
 2036:         }
 2037:         $i++;
 2038:     }
 2039: 
 2040:     $result .= "</select></td></tr></table>";
 2041:     return $result;
 2042: }
 2043: 
 2044: sub postprocess {
 2045:     my $self = shift;
 2046: 
 2047:     my $var = $self->{'variable'};
 2048:     my $helper = Apache::lonhelper->getHelper();
 2049:     $helper->{VARS}->{$var} = 
 2050:         $ENV{"form.$var.layout"} . '|' . $ENV{"form.$var.cols"} . '|' .
 2051:         $ENV{"form.$var.paper"};
 2052:     return 1;
 2053: }
 2054: 
 2055: 1;
 2056: 
 2057: package Apache::lonprintout::page_size_state;
 2058: 
 2059: =pod
 2060: 
 2061: =head1 Helper element: page_size_state
 2062: 
 2063: See lonhelper.pm documentation for discussion of the helper framework.
 2064: 
 2065: Apache::lonprintout::page_size_state is an element that gives the 
 2066: user the opportunity to further refine the page settings if they
 2067: select a single-column page.
 2068: 
 2069: page_size_state is always directly invoked in lonprintout.pm, so there
 2070: is no tag interface. You actually pass parameters to the constructor.
 2071: 
 2072: =over 4
 2073: 
 2074: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
 2075: 
 2076: =back
 2077: 
 2078: =cut
 2079: 
 2080: use Apache::lonhelper;
 2081: 
 2082: no strict;
 2083: @ISA = ("Apache::lonhelper::element");
 2084: use strict;
 2085: 
 2086: 
 2087: 
 2088: sub new { 
 2089:     my $self = Apache::lonhelper::element->new();
 2090: 
 2091:     shift; # disturbs me (probably prevents subclassing) but works (drops
 2092:            # package descriptor)... - Jeremy
 2093: 
 2094:     $self->{'variable'} = shift;
 2095:     my $helper = Apache::lonhelper::getHelper();
 2096:     $helper->declareVar($self->{'variable'});
 2097: 
 2098:     # The variable name of the format element, so we can look into 
 2099:     # $helper->{VARS} to figure out whether the columns are one or two
 2100:     $self->{'formatvar'} = shift;
 2101: 
 2102:     # The state to transition to after selection, or after discovering
 2103:     # the cols are not set to 1
 2104:     $self->{NEXTSTATE} = shift;
 2105:     bless($self);
 2106:     return $self;
 2107: }
 2108: 
 2109: sub render {
 2110:     my $self = shift;
 2111:     my $helper = Apache::lonhelper::getHelper();
 2112:     my $result = '';
 2113:     my $var = $self->{'variable'};
 2114: 
 2115:     if (defined $self->{ERROR_MSG}) {
 2116:         $result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br />';
 2117:     }
 2118: 
 2119:     $result .= <<ELEMENTHTML;
 2120: 
 2121: <p>How should the column be formatted?</p>
 2122: 
 2123: <table cellpadding='3'>
 2124:   <tr>
 2125:     <td align='right'><b>Width</b>:</td>
 2126:     <td align='left'><input type='text' name='$var.width' value='18' size='4'></td>
 2127:     <td align='left'>
 2128:       <select name='$var.widthunit'>
 2129:         <option>cm</option><option>in</option>
 2130:       </select>
 2131:     </td>
 2132:   </tr>
 2133:   <tr>
 2134:     <td align='right'><b>Height</b>:</td>
 2135:     <td align='left'><input type='text' name="$var.height" value="25.9" size='4'></td>
 2136:     <td align='left'>
 2137:       <select name='$var.heightunit'>
 2138:         <option>cm</option><option>in</option>
 2139:       </select>
 2140:     </td>
 2141:   </tr>
 2142:   <tr>
 2143:     <td align='right'><b>Left margin</b>:</td>
 2144:     <td align='left'><input type='text' name='$var.lmargin' value='-1.5' size='4'></td>
 2145:     <td align='left'>
 2146:       <select name='$var.heightunit'>
 2147:         <option>cm</option><option>in</option>
 2148:       </select>
 2149:     </td>
 2150:   </tr>
 2151: </table>
 2152: 
 2153: <p>Hint: Some instructors like to leave scratch space for the student by
 2154: making the width much smaller then the width of the page.</p>
 2155: 
 2156: ELEMENTHTML
 2157: 
 2158:     return $result;
 2159: }
 2160: 
 2161: # If the user didn't select 1 column, skip this state.
 2162: sub preprocess {
 2163:     my $self = shift;
 2164:     my $helper = Apache::lonhelper::getHelper();
 2165: 
 2166:     my $format = $helper->{VARS}->{$self->{'formatvar'}};
 2167:     if (substr($format, 2, 1) ne '1') {
 2168:         $helper->changeState($self->{NEXTSTATE});
 2169:     }
 2170:    
 2171:     return 1;
 2172: }
 2173: 
 2174: sub postprocess {
 2175:     my $self = shift;
 2176: 
 2177:     my $var = $self->{'variable'};
 2178:     my $helper = Apache::lonhelper->getHelper();
 2179:     my $width = $helper->{VARS}->{$var .'.width'} = $ENV{"form.${var}.width"}; 
 2180:     my $height = $helper->{VARS}->{$var .'.height'} = $ENV{"form.${var}.height"}; 
 2181:     my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $ENV{"form.${var}.lmargin"}; 
 2182:     $helper->{VARS}->{$var .'.widthunit'} = $ENV{"form.${var}.widthunit"}; 
 2183:     $helper->{VARS}->{$var .'.heightunit'} = $ENV{"form.${var}.heightunit"}; 
 2184:     $helper->{VARS}->{$var .'.lmarginunit'} = $ENV{"form.${var}.lmarginunit"}; 
 2185: 
 2186:     my $error = '';
 2187: 
 2188:     # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed 
 2189:     # by an optional period, followed by digits, ending the string
 2190: 
 2191:     if ($width !~  /^-?[0-9]+(\.[0-9]*)?$/) {
 2192:         $error .= "Invalid width; please type only a number.<br />\n";
 2193:     }
 2194:     if ($height !~  /^-?[0-9]+(\.[0-9]*)?$/) {
 2195:         $error .= "Invalid height; please type only a number.<br />\n";
 2196:     }
 2197:     if ($lmargin !~  /^-?[0-9]+(\.[0-9]*)?$/) {
 2198:         $error .= "Invalid left margin; please type only a number.<br />\n";
 2199:     }
 2200: 
 2201:     if (!$error) {
 2202:         Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE});
 2203:         return 1;
 2204:     } else {
 2205:         $self->{ERROR_MSG} = $error;
 2206:         return 0;
 2207:     }
 2208: }
 2209: 
 2210: 
 2211: 
 2212: __END__
 2213: 

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