version 1.1, 2000/07/25 21:27:30
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version 1.113, 2002/09/09 21:08:31
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# <script> definiton |
# definition of tags that give a structure to a document |
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# |
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# $Id$ |
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# |
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# Copyright Michigan State University Board of Trustees |
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# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
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# |
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# 2/19 Guy |
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# 6/26/2001 fixed extra web display at end of <web></web> tags |
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# 8/17,8/18,8/20 Gerd Kortemeyer |
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package Apache::structuretags; |
package Apache::structuretags; |
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use strict; |
use strict; |
use Apache::lonnet; |
use Apache::lonnet; |
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use Apache::File(); |
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BEGIN { |
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&Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext')); |
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# &Apache::lonxml::register_insert('problem','',('part','postanswerdate','preduedate')) |
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} |
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sub start_web { |
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
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my $bodytext=&Apache::lonxml::get_all_text("/web",$$parser[$#$parser]); |
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if ($target eq 'web') { |
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return $bodytext; |
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} |
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return ''; |
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} |
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sub end_web { |
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return ''; |
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} |
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sub start_tex { |
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
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my $bodytext=&Apache::lonxml::get_all_text("/tex",$$parser[$#$parser]); |
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if ($target eq 'tex') { |
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return $bodytext.' '; |
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} |
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return ''; |
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} |
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sub end_tex { |
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return ''; |
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} |
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sub page_start { |
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
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my %found; |
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foreach my $taginside ($tagstack) { |
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foreach my $taglookedfor ('html','body','form') { |
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if ($taginside =~ /^$taglookedfor$/i) { $found{$taglookedfor} = 1; } |
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} |
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} |
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my $result; |
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my $head_tag_start; |
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if (!defined($found{'html'})) { |
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$result=&Apache::londefdef::start_html($target,$token,$tagstack,$parstack, |
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$parser,$safeeval); |
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$head_tag_start='<head>'.&Apache::lonxml::registerurl(undef,$target); |
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} |
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my $body_tag_start; |
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if (!defined($found{'body'})) { |
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$body_tag_start='<body onLoad="'.&Apache::lonxml::loadevents().'" '. |
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'onUnload="'.&Apache::lonxml::unloadevents().'" '; |
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my $background=&Apache::lonxml::get_param('background',$parstack,$safeeval); |
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if ($background) { |
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$Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]= |
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$background; |
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$body_tag_start.='background="'.$background.'" '; |
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} else { |
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my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,$safeeval); |
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if ($bgcolor) { |
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$body_tag_start.='bgcolor="'.$bgcolor.'" '; |
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} else { |
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$body_tag_start.='bgcolor="#ffffff"'; |
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} |
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} |
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$body_tag_start.='>'; |
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} |
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my $form_tag_start; |
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if (!defined($found{'form'})) { |
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$form_tag_start='<form name="lonhomework" method="POST" action="'. |
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$ENV{'request.uri'}.'">'; |
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} |
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return ($result,$head_tag_start,$body_tag_start,$form_tag_start); |
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} |
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sub get_resource_name { |
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my ($parstack,$safeeval)=@_; |
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my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval); |
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if ($name eq '') { |
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$name=&Apache::lonnet::EXT('resource.title'); |
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if ($name eq 'con_lost') { $name = ''; } |
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} |
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$Apache::lonhomework::name=$name; |
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return $name; |
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} |
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sub setup_rndseed { |
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my ($safeeval)=@_; |
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my $rndseed; |
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if ($ENV{'request.state'} eq "construct") { |
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$rndseed=$ENV{'form.rndseed'}; |
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if (!$rndseed) { |
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$rndseed=time; |
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$ENV{'form.rndseed'}=$rndseed; |
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} |
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&Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval); |
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} |
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return $rndseed; |
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} |
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sub problem_edit_header { |
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return '<input type="hidden" name="submitted" value="edit" /> |
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<input type="hidden" name="problemmode" value="Edit" /> |
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<input type="submit" name="problemmode" value="Discard Edits and View" /> |
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<input type="submit" name="problemmode" value="EditXML" /> |
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<input type="submit" name="Undo" value="undo" /> <hr /> |
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<input type="submit" name="submit" value="Submit Changes" /> |
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<input type="submit" name="submit" value="Submit Changes and View" /><br /> |
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'; |
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} |
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sub problem_edit_footer { |
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return '<br /><input type="submit" name="submit" value="Submit Changes and Edit" /> |
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<input type="submit" name="submit" value="Submit Changes and View" />'; |
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} |
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sub problem_web_to_edit_header { |
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my ($rndseed)=@_; |
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my $result.='<input type="hidden" name="problemmode" value="View" /> |
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<input type="submit" name="problemmode" value="Edit" /> |
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<input type="submit" name="problemmode" value="EditXML" /> |
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Random Seed:<input type="text" name="rndseed" width="10" value="'. |
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$rndseed.'" /> |
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<input type="submit" name="changerandseed" value="Change" /> |
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<input type="submit" name="resetdata" value="Reset Submissions" /> |
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<input type="checkbox" name="showallfoils" '; |
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if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; } |
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$result.= ' /> Show All Foils |
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<hr />'; |
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} |
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sub initialize_storage { |
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%Apache::lonhomework::results=(); |
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my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); |
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if ($ENV{'request.state'} eq 'construct') { |
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%Apache::lonhomework::history= |
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&Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name); |
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my ($temp)=keys %Apache::lonhomework::history ; |
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&Apache::lonxml::debug("Return message of $temp"); |
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} else { |
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%Apache::lonhomework::history= |
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&Apache::lonnet::restore($symb,$courseid,$domain,$name); |
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} |
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#ignore error conditions |
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my ($temp)=keys %Apache::lonhomework::history ; |
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if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); } |
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} |
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# -------------------------------------------------------------finalize_storage |
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# Stores away the result has to a student's environment |
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# checks form.grade_ for specific values, other wises stores |
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# to the running users environment |
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sub finalize_storage { |
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my $result; |
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my ($temp) = keys %Apache::lonhomework::results; |
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if ( $temp ne '' ) { |
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my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); |
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if ($ENV{'request.state'} eq 'construct') { |
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$result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results, |
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$ENV{'request.uri'},'',$domain,$name); |
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&Apache::lonxml::debug('Construct Store return message:'.$result); |
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} else { |
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$result=&Apache::lonnet::cstore(\%Apache::lonhomework::results, |
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$symb,$courseid,$domain,$name); |
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&Apache::lonxml::debug('Store return message:'.$result); |
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} |
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} |
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return $result; |
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} |
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sub checkout_msg { |
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return (<<ENDCHECKOUT); |
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<h2>The resource needs to be checked out</h2> |
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As a resource gets checked out, a unique timestamped ID is given to it, and a |
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permanent record is left in the system.<p /> |
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<font color=red> |
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Checking out resources is subject to course policies, and may exclude future |
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credit even if done erroneously.<p /> |
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</font> |
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<form name="checkout" method="POST" action="$ENV{'request.uri'}"> |
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<input type="hidden" name="doescheckout" value="yes" /> |
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<input type="button" name="checkoutbutton" value="Check out Exam for Viewing" onClick="javascript:if (confirm('Check out Exam?')) { document.checkout.submit(); }" /> |
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</form> |
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ENDCHECKOUT |
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} |
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sub start_problem { |
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
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# meta is called from lonpublisher, which doesn't uses the normal |
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# lonhomework method of parsing the file which means that inputtags |
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# won't get reset |
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if ( $Apache::inputtags::part ne '' && $target != 'meta' ) { |
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&Apache::lonxml::error('Only one problem allowed in a .problem file'); |
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my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[-1]); |
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return ''; |
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} |
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#intialize globals |
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$Apache::inputtags::part='0'; |
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@Apache::inputtags::responselist = (); |
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@Apache::inputtags::previous=(); |
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if ($target ne 'analyze') { |
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&initialize_storage(); |
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if ($target eq 'web') { |
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&Apache::lonhomework::showhash(%Apache::lonhomework::history); |
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} |
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$Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type'); |
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&Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:"); |
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} |
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if ($Apache::lonhomework::type eq '') { |
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my $uri=$ENV{'request.uri'}; |
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if ($uri=~/\.(\w+)$/) { |
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$Apache::lonhomework::type=$1; |
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&Apache::lonxml::debug("Using type of $1"); |
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} else { |
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$Apache::lonhomework::type='problem'; |
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&Apache::lonxml::debug("Using default type, problem, :$uri:"); |
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} |
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} |
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#added vars to the scripting enviroment |
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my $expression='$external::part='.$Apache::inputtags::part.';'; |
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&Apache::run::run($expression,$safeeval); |
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my $status; |
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my $accessmsg; |
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#should get back a <html> or the neccesary stuff to start XML/MathML |
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my ($result,$head_tag_start,$body_tag_start,$form_tag_start)= |
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&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval); |
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if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) { $result = '';} |
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if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') { |
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#handle exam checkout |
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if ($Apache::lonhomework::type eq 'exam') { |
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my $token=$Apache::lonhomework::history{"resource.0.outtoken"}; |
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if (($ENV{'form.doescheckout'}) && (!$token)) { |
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$token=&Apache::lonxml::maketoken(); |
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$Apache::lonhomework::history{"resource.0.outtoken"}=$token; |
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} |
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$body_tag_start.=&Apache::lonxml::printtokenheader($target,$token); |
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} |
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#handle rand seed in construction space |
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my $rndseed=&setup_rndseed($safeeval); |
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($status,$accessmsg) = &Apache::lonhomework::check_access('0'); |
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push (@Apache::inputtags::status,$status); |
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my $expression='$external::datestatus="'.$status.'";'; |
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$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";'; |
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&Apache::run::run($expression,$safeeval); |
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if (( $status eq 'CLOSED' ) || |
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( $status eq 'UNCHECKEDOUT') || |
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( $status eq 'BANNED')) { |
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my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]); |
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if ( $target eq "web" ) { |
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$result.= $head_tag_start.'</head>'; |
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my $msg=$body_tag_start. |
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'<h1>Not open to be viewed</h1>'; |
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if ($status eq 'CLOSED') { |
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$msg.='The problem '.$accessmsg; |
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} elsif ($status eq 'UNCHECKEDOUT') { |
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$msg.=&checkout_msg; |
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} |
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$result.=$msg.'<br />'; |
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} |
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} elsif ($target eq 'web') { |
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my $name= &get_resource_name($parstack,$safeeval); |
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if ($status eq 'CAN_ANSWER') { |
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# create a page header and exit |
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$result.="$head_tag_start<title>$name</title></head> |
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$body_tag_start \n $form_tag_start". |
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'<input type="hidden" name="submitted" value="yes" />'; |
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if ($ENV{'request.state'} eq "construct") { |
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$result.= &problem_web_to_edit_header($rndseed); |
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} |
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# if we are viewing someone else preserve that info |
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if (defined $ENV{'form.grade_symb'}) { |
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foreach my $field ('symb','courseid','domain','username') { |
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$result .= '<input type="hidden" name="grade_'.$field. |
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'" value="'.$ENV{"form.grade_$field"}.'" />'."\n"; |
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} |
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} |
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} elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER' |
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|| $status eq 'CLOSED') { |
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$result.=$head_tag_start. |
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"<title>$name</title></head>\n$body_tag_start\n"; |
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} |
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} elsif ($target eq 'tex') { |
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my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval); |
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if ($name eq '') { |
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$name=&Apache::lonnet::EXT('resource.title'); |
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if ($name eq 'con_lost') { $name = ''; } |
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} |
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$Apache::lonhomework::name=$name; |
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my $id = $Apache::inputtags::part; |
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my $duedate = &Apache::lonnet::EXT("resource.$id.duedate"); |
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$duedate = POSIX::strftime("%c",localtime($duedate)); |
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my $temp_file; |
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my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due"; |
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if (-e $filename) { |
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$temp_file = Apache::File->new($filename); |
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} else { |
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$temp_file = Apache::File->new('>>'.$filename); |
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} |
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my @due_file_content = <$temp_file>; |
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my $due_file_content = $due_file_content[$#due_file_content]; |
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chomp $due_file_content; |
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if ($due_file_content ne $duedate) { |
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$temp_file = Apache::File->new('>'.$filename); |
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print $temp_file "$duedate\n"; |
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if (not $ENV{'request.symb'} =~ m/\.page_/) { |
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if(not $duedate=~m/1969/) { |
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$result .= '\begin{document} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm'; |
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} else { |
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$result .= '\begin{document} \noindent \vskip 1 mm'; |
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} |
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} else { |
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$result .= '\parbox{\minipagewidth}{\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'; |
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} |
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} else { |
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if (not $ENV{'request.symb'} =~ m/\.page_/) { |
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$result .= '\begin{document} \noindent \vskip 1 mm'; |
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} else { |
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$result .= '\parbox{\minipagewidth}{\vskip 1mm \\\\\\\\'; |
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} |
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} |
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} |
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} elsif ($target eq 'edit') { |
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$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start. |
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&problem_edit_header(); |
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my $temp=&Apache::edit::insertlist($target,$token); |
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$result.=$temp; |
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} elsif ($target eq 'modified') { |
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$result=$token->[4]; |
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$result.=&Apache::edit::handle_insert(); |
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} else { |
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# page_start returned a starting result, delete it if we don't need it |
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$result = ''; |
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} |
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return $result; |
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} |
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sub end_problem { |
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
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my $result=''; |
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my $status=$Apache::inputtags::status['-1']; |
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if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || $target eq 'tex') { |
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if ( $target eq 'grade' && $Apache::inputtags::part eq '0') { |
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# if part is zero, no <part>s existed, so we need to the grading |
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&Apache::inputtags::grade; |
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} elsif ( ($target eq 'web' || $target eq 'tex') && $Apache::inputtags::part eq '0' && |
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$status ne 'UNCHECKEDOUT') { |
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# if part is zero, no <part>s existed, so we need show the current |
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# grading status |
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my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part); |
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#FIXME this is ugly we should just generate tex in inputtags |
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if ($target eq 'tex') { $gradestatus=&html_to_tex($gradestatus); } |
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$result.= $gradestatus; |
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} |
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if ( |
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(($target eq 'web') && ($ENV{'request.state'} ne 'construct')) || |
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($target eq 'answer') || ($target eq 'tex') |
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) { |
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if ($status eq 'CAN_ANSWER') { |
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if ($target ne 'tex') { |
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$result.="</form></body>\n"; |
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} |
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} elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER' || |
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$status eq 'UNCHECKEDOUT' ) { |
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if ($target ne 'tex') { |
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$result.="</body>\n"; |
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} |
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} |
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if ($target ne 'tex') { |
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$result.=&Apache::lonxml::xmlend(); |
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} else { |
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$result .= '\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}'; |
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if (not $ENV{'request.symb'} =~ m/\.page_/) { |
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$result .= '\end{document} '; |
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} else { |
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$result .= '} '; |
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} |
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} |
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} |
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if ($target eq 'grade') { |
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&Apache::lonhomework::showhash(%Apache::lonhomework::results); |
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&finalize_storage(); |
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} |
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} elsif ($target eq 'meta') { |
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if ($Apache::inputtags::part eq '0') { |
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$result=&Apache::response::mandatory_part_meta; |
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} |
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} elsif ($target eq 'edit') { |
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&Apache::lonxml::debug("in end_problem with $target, edit"); |
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$result = &problem_edit_footer(); |
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} |
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return $result; |
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} |
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#FIXME I am ugly shoot me |
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sub html_to_tex { |
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my ($string)=@_; |
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$string =~ s/<table>//; |
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$string =~ s/<\/table>//; |
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$string =~ s/<tr([^>]*)>//g; |
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$string =~ s/<\/tr>//g; |
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$string =~ s/<td([^>]*)>//g; |
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$string =~ s/<\/td>//g; |
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$string =~ s/<b>/\\textbf{/g; |
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$string =~ s/<\/b>/}/g; |
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$string =~ s/<br \/>/\\vskip 0 mm /g; |
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$string =~ s/<input([^>]*)>//g; |
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return $string; |
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} |
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sub start_library { |
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
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my ($result,$head_tag_start,$body_tag_start,$form_tag_start); |
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|
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if ($target eq 'edit') { |
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($result,$head_tag_start,$body_tag_start,$form_tag_start)= |
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&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval); |
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$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start. |
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&problem_edit_header(); |
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my $temp=&Apache::edit::insertlist($target,$token); |
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$result.=$temp; |
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} elsif ($target eq 'modified') { |
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$result=$token->[4]; |
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$result.=&Apache::edit::handle_insert(); |
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} elsif ($target eq 'web' && $$tagstack[0] ne 'problem' && |
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$ENV{'request.state'} eq "construct" ) { |
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($result,$head_tag_start,$body_tag_start,$form_tag_start)= |
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&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval); |
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my $name=&get_resource_name($parstack,$safeeval); |
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my $rndseed=&setup_rndseed($safeeval); |
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$result.="$head_tag_start<title>$name</title></head> |
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$body_tag_start \n $form_tag_start". |
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'<input type="hidden" name="submitted" value="yes" />'; |
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$result.=&problem_web_to_edit_header($rndseed); |
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} |
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return $result; |
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} |
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sub BEGIN { |
sub end_library { |
&Apache::lonxml::register('Apache::structuretags',('block')); |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
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my $result=''; |
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if ($target eq 'edit') { |
|
$result=&problem_edit_footer(); |
|
} elsif ($target eq 'web' && $ENV{'request.state'} eq "construct") { |
|
$result.='</form></body>'.&Apache::lonxml::xmlend(); |
|
} |
|
return $result; |
} |
} |
|
|
sub start_block { |
sub start_block { |
my ($target,$token,$parstack,$parser,$safeeval)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
|
|
if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') { |
|
my $code = @$parstack[$#$parstack]; |
|
$code =~ s/\"//g; |
|
$code .=';return $condition;'; |
|
# print "<br />$code<br />"; |
|
my $result = &Apache::run::run($code,$safeeval); |
|
&Apache::lonxml::debug("block :$code: returned :$result:"); |
|
if ( ! $result ) { |
|
my $skip=&Apache::lonxml::get_all_text("/block",$$parser[$#$parser]); |
|
&Apache::lonxml::debug("skipping ahead :$skip: $$parser[$#$parser]"); |
|
} |
|
} |
|
return ""; |
|
} |
|
|
|
sub end_block { |
|
return ''; |
|
} |
|
|
|
sub start_while { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
|
my $code = @$parstack[$#$parstack]; |
my $code = @$parstack[$#$parstack]; |
$code =~ s/\"//g; |
$code =~ s/\"//g; |
$code .=';return $condition;'; |
$code .=';return $condition;'; |
|
|
|
push( @Apache::structuretags::whileconds, $code); |
my $result = &Apache::run::run($code,$safeeval); |
my $result = &Apache::run::run($code,$safeeval); |
if ( ! $result ) { |
my $bodytext=$$parser[$#$parser]->get_text("/while"); |
my $skip=$parser->get_text("/block"); |
push( @Apache::structuretags::whilebody, $bodytext); |
|
if ( $result ) { |
|
&Apache::lonxml::newparser($parser,\$bodytext); |
} |
} |
return ""; |
return ""; |
} |
} |
|
|
sub end_block { |
sub end_while { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $code = pop @Apache::structuretags::whileconds; |
|
my $bodytext = pop @Apache::structuretags::whilebody; |
|
my $result = &Apache::run::run($code,$safeeval); |
|
if ( $result ) { |
|
&Apache::lonxml::newparser($parser,\$bodytext); |
|
} |
|
return ""; |
|
} |
|
|
|
# <randomlist show="1"> |
|
# <tag1>..</tag1> |
|
# <tag2>..</tag2> |
|
# <tag3>..</tag3> |
|
# ... |
|
# </randomlist> |
|
sub start_randomlist { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $result; |
|
if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' || |
|
$target eq 'tex') { |
|
my $body= &Apache::lonxml::get_all_text("/randomlist",$$parser[$#$parser]); |
|
my $b_parser= HTML::TokeParser->new(\$body); |
|
my $b_tok; |
|
my @randomlist; |
|
my $list_item; |
|
while($b_tok = $b_parser->get_token() ) { |
|
if($b_tok->[0] eq 'S') { # start tag |
|
# get content of the tag until matching end tag |
|
# get all text upto the matching tag |
|
# and push the content into @randomlist |
|
$list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],$b_parser); |
|
$list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>"; |
|
push(@randomlist,$list_item); |
|
# print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4], $list_item</b>"; |
|
} |
|
if($b_tok->[0] eq 'T') { # text |
|
# what to do with text in between tags? |
|
# print "<b>TEXT $b_tok->[1]</b><br />"; |
|
} |
|
# if($b_tok->[0] eq 'E') { # end tag, should not happen |
|
# print "<b>END-TAG $b_tok->[1]</b><br />"; |
|
# } |
|
} |
|
my @idx_arr = (0 .. $#randomlist); |
|
&Apache::structuretags::shuffle(\@idx_arr); |
|
my $bodytext = ''; |
|
my $show=$#randomlist; |
|
my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval); |
|
$showarg--; |
|
if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; } |
|
for(0 .. $show) { |
|
$bodytext .= "$randomlist[ $idx_arr[$_] ]"; |
|
} |
|
&Apache::lonxml::newparser($parser,\$bodytext); |
|
} elsif ($target eq 'edit' ) { |
|
$result .= &Apache::edit::tag_start($target,$token); |
|
$result .= &Apache::edit::text_arg('Maximum Tags to Show:','show',$token,5); |
|
$result .= &Apache::edit::end_row().&Apache::edit::start_spanning_row(); |
|
} elsif ($target eq 'modified' ) { |
|
my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval, |
|
'show'); |
|
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } |
|
} |
|
return $result; |
|
} |
|
|
|
sub shuffle { |
|
my $a=shift; |
|
my $i; |
|
if (defined(@$a)) { |
|
&Apache::response::setrandomnumber(); |
|
for($i=@$a;--$i;) { |
|
my $j=int rand($i+1); |
|
next if $i == $j; |
|
@$a[$i,$j] = @$a[$j,$i]; |
|
} |
|
} |
|
} |
|
|
|
sub end_randomlist { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $result; |
|
if ($target eq 'edit' ) { |
|
$result=&Apache::edit::tag_end($target,$token,'End Randomly Parsed Block'); |
|
} |
|
return $result; |
|
} |
|
|
|
sub start_part { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $result=''; |
|
my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval); |
|
if ($id eq '') { $id = $Apache::lonxml::curdepth; } |
|
$Apache::inputtags::part=$id; |
|
@Apache::inputtags::responselist = (); |
|
@Apache::inputtags::previous=(); |
|
if ($target eq 'meta') { |
|
return &Apache::response::mandatory_part_meta; |
|
} elsif ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') { |
|
my ($status,$accessmsg) = &Apache::lonhomework::check_access($id); |
|
push (@Apache::inputtags::status,$status); |
|
my $expression='$external::datestatus="'.$status.'";'; |
|
$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";'; |
|
&Apache::run::run($expression,$safeeval); |
|
if ( $status eq 'CLOSED' ) { |
|
my $bodytext=&Apache::lonxml::get_all_text("/part",$$parser[$#$parser]); |
|
if ( $target eq "web" ) { |
|
$result="<br />Part is not open to be viewed. It $accessmsg<br />"; |
|
} elsif ( $target eq 'tex' ) { |
|
$result="\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\"; |
|
} |
|
} else { |
|
if ($target eq 'tex') { |
|
$result='\vskip 0 mm'; |
|
} |
|
} |
|
} |
|
return $result; |
|
} |
|
|
|
sub end_part { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
&Apache::lonxml::debug("in end_part $target "); |
|
my $status=$Apache::inputtags::status['-1']; |
|
pop @Apache::inputtags::status; |
|
if ( $target eq 'meta' ) { return ''; } |
|
if ( $target eq 'grade' && $status eq 'CAN_ANSWER') { |
|
return &Apache::inputtags::grade; |
|
} |
|
if ($target eq 'web' || $target eq 'tex' ) { |
|
my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part); |
|
#FIXME this is ugly we should just generate tex in inputtags |
|
if ($target eq 'tex') { $gradestatus=&html_to_tex($gradestatus); } |
|
return $gradestatus; |
|
} |
|
return ''; |
|
} |
|
|
|
sub start_preduedate { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') { |
|
if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' && |
|
$Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' ) { |
|
&Apache::lonxml::get_all_text("/preduedate",$$parser[$#$parser]); |
|
} |
|
} |
|
return ''; |
|
} |
|
|
|
sub end_preduedate { |
|
return ''; |
|
} |
|
|
|
sub start_postanswerdate { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') { |
|
if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') { |
|
&Apache::lonxml::get_all_text("/postanswerdate",$$parser[$#$parser]); |
|
} |
|
} elsif ($target eq 'tex') { |
|
return '\vskip 0 mm \noindent'; |
|
} |
|
return ''; |
|
} |
|
|
|
sub end_postanswerdate { |
|
return ''; |
|
} |
|
|
|
sub start_notsolved { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') { |
|
my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"}; |
|
&Apache::lonxml::debug("not solved has :$gradestatus:"); |
|
if ($gradestatus =~ /^correct/) { |
|
&Apache::lonxml::debug("skipping"); |
|
&Apache::lonxml::get_all_text("/notsolved",$$parser[$#$parser]); |
|
} |
|
} |
|
return ''; |
|
} |
|
|
|
sub end_notsolved { |
|
return ''; |
|
} |
|
|
|
sub start_solved { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') { |
|
my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"}; |
|
if ($gradestatus !~ /^correct/) { |
|
&Apache::lonxml::get_all_text("/solved",$$parser[$#$parser]); |
|
} |
|
} |
|
return ''; |
|
} |
|
|
|
sub end_solved { |
|
return ''; |
|
} |
|
|
|
sub start_startouttext { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my @result=(''.''); |
|
if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); } |
|
return (@result); |
|
} |
|
sub end_startouttext { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $result=''; |
|
my $text=''; |
|
|
|
if ($target eq 'edit') { |
|
$text=&Apache::lonxml::get_all_text("endouttext",$$parser[-1]); |
|
$result.=&Apache::edit::start_table($token)."<tr><td>Text Block</td> |
|
<td>Delete:". |
|
&Apache::edit::deletelist($target,$token) |
|
."</td> |
|
<td>". |
|
&Apache::edit::insertlist($target,$token). |
|
&Apache::edit::end_row().&Apache::edit::start_spanning_row()."\n". |
|
&Apache::edit::editfield($token->[1],$text,"",50,4); |
|
} |
|
if ($target eq 'modified') { |
|
$text=&Apache::lonxml::get_all_text("endouttext",$$parser['-1']); |
|
$result='<startouttext />'.&Apache::edit::modifiedfield(); |
|
} |
|
if ($target eq 'tex') { |
|
$result .= '\noindent '; |
|
} |
|
return $result; |
|
} |
|
sub start_endouttext { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $result=''; |
|
if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; } |
|
if ($target eq "modified") { $result='<endouttext />'; } |
|
return $result; |
|
} |
|
sub end_endouttext { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my @result=('',''); |
|
if ($target eq "edit" || $target eq 'modified') { @result=('','no'); } |
|
return (@result); |
|
} |
|
sub delete_startouttext { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
# my $text=&Apache::lonxml::get_all_text("endouttext",$$parser['-1']); |
|
my $text=$$parser['-1']->get_text("/endouttext"); |
|
my $ntoken=$$parser['-1']->get_token(); |
|
&Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext"); |
|
&Apache::lonxml::end_tag($tagstack,$parstack,$ntoken); |
|
# Deleting 2 parallel tag pairs, but we need the numbers later to look like |
|
# they did the last time round |
|
&Apache::lonxml::increasedepth($ntoken); |
|
&Apache::lonxml::decreasedepth($ntoken); |
|
return 1; |
} |
} |
|
|
1; |
1; |