version 1.3, 2000/08/16 18:32:58
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version 1.202, 2003/08/13 15:25:59
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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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use Apache::lonmenu; |
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sub BEGIN { |
BEGIN { |
&Apache::lonxml::register('Apache::structuretags',('block')); |
&Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext', |
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'simpleeditbutton','definetag')); |
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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); |
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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 $result=''; |
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my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser); |
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if ($target eq 'tex') { |
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return $bodytext.' '; |
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} |
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return $result;; |
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} |
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sub end_tex { |
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return ''; |
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} |
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sub page_start { |
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my ($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, |
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$parstack,$parser,$safeeval); |
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$head_tag_start='<head>'.&Apache::lonmenu::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::lonmenu::loadevents().'" '. |
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'onUnload="'.&Apache::lonmenu::unloadevents().'" '; |
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my $background=&Apache::lonxml::get_param('background',$parstack, |
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$safeeval); |
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if ($ENV{'browser.imagesuppress'} eq 'on') { $background=''; } |
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if ($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, |
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$safeeval); |
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if (($bgcolor) && ($ENV{'browser.blackwhite'} ne 'on')) { |
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$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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if ($ENV{'browser.fontenhance'} eq 'on') { |
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$body_tag_start.=' style="font-size: x-large;" '; |
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} |
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$body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1); |
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if ($target eq 'web' && $ENV{'request.state'} ne 'construct') { |
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my ($symb,undef,undef,undef,$publicuser)= |
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&Apache::lonxml::whichuser(); |
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if ($symb eq '' && !$publicuser) { |
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my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference"); |
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$help="Browsing resource, all submissions are temporary.<br />"; |
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$body_tag_start.=$help; |
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} |
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} |
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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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#use Time::HiRes(); |
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sub get_resource_name { |
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my ($parstack,$safeeval)=@_; |
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my $name=&Apache::lonnet::gettitle(); |
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if ($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 $rndseed; |
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my ($symb)=&Apache::lonxml::whichuser(); |
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if ($ENV{'request.state'} eq "construct" || $symb eq '') { |
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$rndseed=$ENV{'form.rndseed'}; |
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if (!$rndseed) { |
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$rndseed=$Apache::lonhomework::history{'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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} |
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if ($ENV{'form.resetdata'} eq 'New Problem Variation' || |
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$ENV{'form.newrandomization'} eq 'New Randomization') { |
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srand(time); |
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$rndseed=int(rand(2100000000)); |
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$ENV{'form.rndseed'}=$rndseed; |
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delete($ENV{'form.resetdata'}); |
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delete($ENV{'form.newrandomization'}); |
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} |
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if (defined($rndseed) && $rndseed ne int($rndseed)) { |
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$rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed)); |
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} |
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&Apache::lonxml::debug("Setting rndseed to $rndseed"); |
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&Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval); |
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} |
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return $rndseed; |
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} |
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sub problem_edit_header { |
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return '<input type="hidden" name="submitted" value="edit" /> |
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<input type="hidden" name="problemmode" value="Edit" /> |
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<input type="submit" name="problemmode" value="Discard Edits and View" /> |
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<input type="submit" name="problemmode" value="EditXML" /> |
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<input type="submit" name="Undo" value="undo" /> <hr /> |
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<input type="submit" name="submit" value="Submit Changes and Edit" /> |
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<input type="submit" name="submit" value="Submit Changes and View" /><br /><p> </p><table border="0"><tr><td bgcolor="#DDDDDD"> |
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'; |
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} |
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sub problem_edit_footer { |
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return '</td></tr></table><br /><input type="submit" name="submit" value="Submit Changes and Edit" /> |
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<input type="submit" name="submit" value="Submit Changes and View" />'; |
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} |
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sub problem_web_to_edit_header { |
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my ($rndseed)=@_; |
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my $result.='<input type="hidden" name="problemmode" value="View" /> |
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<input type="submit" name="problemmode" value="Edit" /> |
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<input type="submit" name="problemmode" value="EditXML" /> |
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<input type="submit" name="newrandomization" value="New Randomization" /> |
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<input type="submit" name="resetdata" value="Reset Submissions" /> |
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<nobr><input type="submit" name="changerandseed" value="Change Random Seed To:" /> |
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<input type="text" name="rndseed" width="10" value="'. |
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$rndseed.'" |
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onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr> |
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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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my $numtoanalyze=$ENV{'form.numtoanalyze'}; |
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if (!$numtoanalyze) { $numtoanalyze=20; } |
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$result.= '<input type="submit" name="problemmode" value="Calculate answers" /> for |
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<input type="text" name="numtoanalyze" value="'. |
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$numtoanalyze.'" size="5" /> versions of this problem.'. |
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&Apache::loncommon::help_open_topic("Analyze_Problem", |
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'',undef,undef,300). |
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'<hr />'; |
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return $result; |
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} |
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sub initialize_storage { |
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%Apache::lonhomework::results=(); |
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%Apache::lonhomework::history=(); |
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my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); |
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if ($ENV{'request.state'} eq 'construct' || $symb eq '') { |
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%Apache::lonhomework::history= |
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&Apache::lonnet::tmprestore($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' || $symb eq '') { |
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$Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'}; |
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$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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if ( $Apache::inputtags::part ne '' || |
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$Apache::lonhomework::parsing_a_problem) { |
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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); |
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return ''; |
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} |
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$Apache::lonhomework::parsing_a_problem=1; |
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#initialize globals |
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$Apache::inputtags::part='0'; |
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@Apache::inputtags::partlist=('0'); |
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@Apache::inputtags::responselist = (); |
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@Apache::inputtags::importlist = (); |
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@Apache::inputtags::previous=(); |
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@Apache::inputtags::previous_version=(); |
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$Apache::structuretags::printanswer='No'; |
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@Apache::structuretags::whileconds=(); |
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@Apache::structuretags::whilebody=(); |
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@Apache::structuretags::whileline=(); |
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$Apache::lonhomework::scantronmode=0; |
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$Apache::lonhomework::problemstatus= |
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&Apache::lonnet::EXT('resource.0.problemstatus'); |
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if (defined($ENV{'scantron.maxquest'})) { |
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$Apache::lonhomework::scantronmode=1; |
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} |
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if ($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 'analyze') { my $rndseed=&setup_rndseed($safeeval); } |
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if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || |
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$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 $token= |
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$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"}= |
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$token; |
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} |
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$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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my ($symb)=&Apache::lonxml::whichuser(); |
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if ($ENV{'request.state'} ne "construct" && $symb eq '') { |
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$form_tag_start.='<input type="hidden" name="rndseed" value="'. |
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$rndseed.'" />'. |
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'<input type="submit" name="resetdata" |
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value="New Problem Variation" />'. |
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'<input type="hidden" name="username" |
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value="'.$ENV{'form.username'}.'" /> <br />'; |
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} |
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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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&Apache::lonxml::debug("Got $status"); |
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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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( $status eq 'UNAVAILABLE')) { |
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my $bodytext=&Apache::lonxml::get_all_text("/problem",$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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if ($status eq 'UNAVAILABLE') { |
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$result.='<h1>Unable to determine if this resource is open due to network problems. Please try again later.</h1>'; |
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} else { |
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$result.='<h1>Not open to be viewed</h1>'; |
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} |
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if ($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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} elsif ($target eq 'tex') { |
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$result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm'; |
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if ($status eq 'UNAVAILABLE') { |
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$result.='Unable to determine if this resource is open due to network problems. Please try again later.\vskip 0 mm '; |
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} else { |
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$result.="Problem is not open to be viewed. It $accessmsg \\vskip 0 mm "; |
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} |
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} |
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} elsif ($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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$result.= &problem_web_to_edit_header($ENV{'form.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' || $status eq 'UNAVALAILABLE') { |
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$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 $startminipage = ''; |
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if (not $ENV{'form.problem_split'}=~/yes/) { |
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$startminipage = '\begin{minipage}{\textwidth}'; |
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} |
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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 $weight = &Apache::lonnet::EXT("resource.$id.weight"); |
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my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'keys'); |
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my @allkeys = split /,/,$allkeys; |
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my $allow_print_points = 0; |
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foreach my $partial_key (@allkeys) { |
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if ($partial_key=~m/weight/) { |
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$allow_print_points++; |
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} |
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} |
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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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my $name_of_resourse= &get_resource_name($parstack,$safeeval); |
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if ($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/ and $Apache::lonhomework::type ne 'exam') { |
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$result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND}\addcontentsline{toc}{subsection}{'.$name_of_resourse.'} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent '.$startminipage; |
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} else { |
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$result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND}\addcontentsline{toc}{subsection}{'.$name_of_resourse.'} \noindent \vskip 1 mm \noindent'.$startminipage; |
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if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';} |
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} |
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} else { |
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$result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'; |
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} |
|
} else { |
|
if (not $ENV{'request.symb'} =~ m/\.page_/) { |
|
$result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND}\addcontentsline{toc}{subsection}{'.$name_of_resourse.'} \noindent \vskip 1 mm\noindent'.$startminipage; |
|
if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';} |
|
} else { |
|
$result .= '\vskip 1mm \\\\\\\\'; |
|
} |
|
} |
|
} |
|
} elsif ($target eq 'edit') { |
|
$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start. |
|
&problem_edit_header(); |
|
my $temp=&Apache::edit::insertlist($target,$token); |
|
$result.=$temp; |
|
} elsif ($target eq 'modified') { |
|
$result=$token->[4]; |
|
$result.=&Apache::edit::handle_insert(); |
|
} else { |
|
# page_start returned a starting result, delete it if we don't need it |
|
$result = ''; |
|
} |
|
return $result; |
|
} |
|
|
|
sub end_problem { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $result=''; |
|
my $status=$Apache::inputtags::status['-1']; |
|
if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || |
|
$target eq 'tex') { |
|
if ( $target eq 'grade' && $Apache::inputtags::part eq '0' && |
|
$status eq 'CAN_ANSWER' ) { |
|
# if part is zero, no <part>s existed, so we need to the grading |
|
&Apache::inputtags::grade; |
|
} elsif ( ($target eq 'web' || $target eq 'tex') && |
|
$Apache::inputtags::part eq '0' && |
|
$status ne 'UNCHECKEDOUT') { |
|
# if part is zero, no <part>s existed, so we need show the current |
|
# grading status |
|
my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target); |
|
$result.= $gradestatus; |
|
} |
|
if ( |
|
(($target eq 'web') && ($ENV{'request.state'} ne 'construct')) || |
|
($target eq 'answer') || ($target eq 'tex') |
|
) { |
|
if ($status eq 'CAN_ANSWER') { |
|
if ($target ne 'tex' && |
|
$ENV{'form.answer_output_mode'} ne 'tex') { |
|
$result.="</form></body>\n"; |
|
} |
|
} elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER' || |
|
$status eq 'UNCHECKEDOUT' ) { |
|
if ($target ne 'tex' && |
|
$ENV{'form.answer_output_mode'} ne 'tex') { |
|
$result.="</body>\n"; |
|
} |
|
} |
|
if ($target eq 'web') { |
|
$result.=&Apache::lonxml::xmlend(); |
|
} elsif ($target eq 'tex') { |
|
my $endminipage = ''; |
|
if (not $ENV{'form.problem_split'}=~/yes/) { |
|
$endminipage = '\end{minipage}'; |
|
} |
|
$result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}'; |
|
if (not $ENV{'request.symb'} =~ m/\.page_/) { |
|
$result .= $endminipage.'\end{document} '; |
|
} else { |
|
$result .= ''; |
|
} |
|
} |
|
} |
|
if ($target eq 'grade') { |
|
&Apache::lonhomework::showhash(%Apache::lonhomework::results); |
|
&finalize_storage(); |
|
} |
|
if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct') |
|
&& $ENV{'form.answer_output_mode'} ne 'tex') { |
|
$result.='</html>'; # normally we get it from xmlend, but in CSTR |
|
# we always show answer mode too. |
|
} |
|
} elsif ($target eq 'meta') { |
|
if ($Apache::inputtags::part eq '0') { |
|
@Apache::inputtags::response=(); |
|
$result=&Apache::response::mandatory_part_meta; |
|
} |
|
} elsif ($target eq 'edit') { |
|
&Apache::lonxml::debug("in end_problem with $target, edit"); |
|
$result = &problem_edit_footer(); |
|
} |
|
|
|
if ($ENV{'request.state'} eq 'construct' && $target eq 'web') { |
|
&Apache::inputtags::check_for_duplicate_ids(); |
|
} |
|
undef(%Apache::lonhomework::history); |
|
undef(%Apache::lonhomework::results); |
|
undef($Apache::inputtags::part); |
|
undef($Apache::lonhomework::parsing_a_problem); |
|
|
|
return $result; |
|
} |
|
|
|
|
|
sub start_library { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my ($result,$head_tag_start,$body_tag_start,$form_tag_start); |
|
|
|
if ($target eq 'edit') { |
|
($result,$head_tag_start,$body_tag_start,$form_tag_start)= |
|
&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval); |
|
$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start. |
|
&problem_edit_header(); |
|
my $temp=&Apache::edit::insertlist($target,$token); |
|
$result.=$temp; |
|
} elsif ($target eq 'modified') { |
|
$result=$token->[4]; |
|
$result.=&Apache::edit::handle_insert(); |
|
} elsif ($target eq 'web' && $$tagstack[0] ne 'problem' && |
|
$ENV{'request.state'} eq "construct" ) { |
|
($result,$head_tag_start,$body_tag_start,$form_tag_start)= |
|
&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval); |
|
my $name=&get_resource_name($parstack,$safeeval); |
|
my $rndseed=&setup_rndseed($safeeval); |
|
$result.="$head_tag_start<title>$name</title></head> |
|
$body_tag_start \n $form_tag_start". |
|
'<input type="hidden" name="submitted" value="yes" />'; |
|
$result.=&problem_web_to_edit_header($rndseed); |
|
} |
|
return $result; |
|
} |
|
|
|
sub end_library { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $result=''; |
|
if ($target eq 'edit') { |
|
$result=&problem_edit_footer(); |
|
} elsif ($target eq 'web' && $$tagstack[0] ne 'problem' && |
|
$ENV{'request.state'} eq "construct") { |
|
$result.='</form></body>'.&Apache::lonxml::xmlend(); |
|
} |
|
return $result; |
|
} |
|
|
|
sub start_definetag { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
|
|
my $result; |
|
|
|
my $name = $token->[2]->{'name'}; |
|
my $skip=&Apache::lonxml::get_all_text("/definetag",$parser); |
|
if ($name=~/^\//) { |
|
$result= |
|
'<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>'; |
|
} else { |
|
$result= |
|
'<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>'; |
|
} |
|
$skip=~s/\</\<\;/gs; |
|
$skip=~s/\>/\>\;/gs; |
|
$result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>'; |
|
return $result; |
|
} |
|
|
|
sub end_definetag { |
|
return ''; |
} |
} |
|
|
sub start_block { |
sub start_block { |
my ($target,$token,$parstack,$parser,$safeeval)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
|
|
my $code = @$parstack[$#$parstack]; |
my $result; |
$code =~ s/\"//g; |
|
$code .=';return $condition;'; |
if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || |
# print "<br>$code<br>"; |
$target eq 'tex' || $target eq 'analyze') { |
my $result = &Apache::run::run($code,$safeeval); |
my $code = $token->[2]->{'condition'}; |
if ( ! $result ) { |
if (defined($code)) { |
# my $skip=$$parser[$#$parser]->get_text("/block"); |
if (!$Apache::lonxml::default_homework_loaded) { |
my $skip=&Apache::lonxml::get_all_text("block",$$parser[$#$parser]); |
&Apache::lonxml::default_homework_load($safeeval); |
# print "skipped $skip"; |
} |
} |
$result = &Apache::run::run($code,$safeeval); |
return ""; |
&Apache::lonxml::debug("block :$code: returned :$result:"); |
|
} else { |
|
$result='1'; |
|
} |
|
if ( ! $result ) { |
|
my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style); |
|
&Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]"); |
|
} |
|
$result=''; |
|
} elsif ($target eq 'edit') { |
|
$result .=&Apache::edit::tag_start($target,$token); |
|
$result .=&Apache::edit::text_arg('Test Condition:','condition', |
|
$token,40); |
|
$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); |
|
} elsif ($target eq 'modified') { |
|
my $constructtag=&Apache::edit::get_new_args($token,$parstack, |
|
$safeeval,'condition'); |
|
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } |
|
} |
|
return $result; |
} |
} |
|
|
sub end_block { |
sub end_block { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $result; |
|
if ($target eq "edit") { |
|
$result.= &Apache::edit::tag_end($target,$token,''); |
|
} |
|
return $result; |
|
} |
|
|
|
sub start_languageblock { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
|
|
|
my $result; |
|
|
|
if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || |
|
$target eq 'tex' || $target eq 'analyze') { |
|
my $include = $token->[2]->{'include'}; |
|
my $exclude = $token->[2]->{'exclude'}; |
|
my %languages=&Apache::loncommon::display_languages(); |
|
$result='1'; |
|
if ($include) { |
|
$result=''; |
|
foreach (split(/\,/,$include)) { |
|
if ($languages{$_}) { $result='1'; } |
|
} |
|
} |
|
if ($exclude) { |
|
foreach (split(/\,/,$exclude)) { |
|
if ($languages{$_}) { $result='0'; } |
|
} |
|
} |
|
if ( ! $result ) { |
|
my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser, |
|
$style); |
|
&Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]"); |
|
} |
|
$result=''; |
|
} elsif ($target eq 'edit') { |
|
$result .=&Apache::edit::tag_start($target,$token); |
|
$result .=&Apache::edit::text_arg('Include Language:','include', |
|
$token,40); |
|
$result .=&Apache::edit::text_arg('Exclude Language:','exclude', |
|
$token,40); |
|
$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); |
|
} elsif ($target eq 'modified') { |
|
my $constructtag=&Apache::edit::get_new_args($token,$parstack, |
|
$safeeval,'include', |
|
'exclude'); |
|
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } |
|
} |
|
return $result; |
|
} |
|
|
|
sub end_languageblock { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $result; |
|
if ($target eq "edit") { |
|
$result.= &Apache::edit::tag_end($target,$token,''); |
|
} |
|
return $result; |
|
} |
|
|
|
sub start_instructorcomment { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
|
|
|
my $result; |
|
|
|
if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || |
|
$target eq 'tex' || $target eq 'analyze') { |
|
$result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/); |
|
if ( ! $result ) { |
|
my $skip=&Apache::lonxml::get_all_text("/instructorcomment", |
|
$parser,$style); |
|
&Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]"); |
|
} |
|
$result=''; |
|
} elsif ($target eq 'edit') { |
|
$result .=&Apache::edit::tag_start($target,$token); |
|
$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); |
|
} |
|
return $result; |
|
} |
|
|
|
sub end_instructorcomment { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $result; |
|
if ($target eq "edit") { |
|
$result.= &Apache::edit::tag_end($target,$token,''); |
|
} |
|
return $result; |
|
} |
|
|
|
sub start_while { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
|
|
my $result; |
|
if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || |
|
$target eq 'tex' || $target eq 'analyze') { |
|
my $code = $token->[2]->{'condition'}; |
|
|
|
push( @Apache::structuretags::whileconds, $code); |
|
if (!$Apache::lonxml::default_homework_loaded) { |
|
&Apache::lonxml::default_homework_load($safeeval); |
|
} |
|
my $result = &Apache::run::run($code,$safeeval); |
|
my $bodytext=&Apache::lonxml::get_all_text("/while",$parser); |
|
push( @Apache::structuretags::whilebody, $bodytext); |
|
push( @Apache::structuretags::whileline, $token->[5]); |
|
&Apache::lonxml::debug("s code $code got -$result-"); |
|
if ( $result ) { |
|
&Apache::lonxml::newparser($parser,\$bodytext); |
|
} |
|
} elsif ($target eq 'edit') { |
|
$result .=&Apache::edit::tag_start($target,$token); |
|
$result .=&Apache::edit::text_arg('Test Condition:','condition', |
|
$token,40); |
|
$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); |
|
} elsif ($target eq 'modified') { |
|
my $constructtag=&Apache::edit::get_new_args($token,$parstack, |
|
$safeeval,'condition'); |
|
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } |
|
} |
|
return $result; |
|
} |
|
|
|
sub end_while { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $result; |
|
|
|
if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || |
|
$target eq 'tex' || $target eq 'analyze') { |
|
my $code = pop(@Apache::structuretags::whileconds); |
|
my $bodytext = pop(@Apache::structuretags::whilebody); |
|
my $line = pop(@Apache::structuretags::whileline); |
|
my $return = &Apache::run::run($code,$safeeval); |
|
my $starttime=time; |
|
my $error=0; |
|
while ($return) { |
|
if (time-$starttime > |
|
$Apache::lonnet::perlvar{'lonScriptTimeout'}) { |
|
$return = 0; $error=1; next; |
|
} |
|
$result.=&Apache::scripttag::xmlparse($bodytext); |
|
$return = &Apache::run::run($code,$safeeval); |
|
} |
|
if ($error) { |
|
&Apache::lonxml::error('<pre>Code ran too long. It ran for more than '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' seconds occured while running <while$gt; on line '.$line.'</pre>'); |
|
} |
|
} elsif ($target eq "edit") { |
|
$result.= &Apache::edit::tag_end($target,$token,''); |
|
} |
|
return $result; |
|
} |
|
|
|
# <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' || $target eq 'analyze') { |
|
my $body= &Apache::lonxml::get_all_text("/randomlist",$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(&Math::Random::random_uniform() * ($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; |
|
push(@Apache::inputtags::partlist,$id); |
|
@Apache::inputtags::response=(); |
|
@Apache::inputtags::previous=(); |
|
@Apache::inputtags::previous_version=(); |
|
$Apache::lonhomework::problemstatus= |
|
&Apache::lonnet::EXT("resource.$id.problemstatus"); |
|
my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part); |
|
|
|
if ($target eq 'meta') { |
|
return &Apache::response::mandatory_part_meta; |
|
} elsif ($target eq 'web' || $target eq 'grade' || |
|
$target eq 'answer' || $target eq 'tex') { |
|
if ($hidden) { |
|
my $bodytext=&Apache::lonxml::get_all_text("/part",$parser); |
|
} else { |
|
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); |
|
if ( $target eq "web" ) { |
|
$result="<br />Part is not open to be viewed. It $accessmsg<br />"; |
|
} elsif ( $target eq 'tex' ) { |
|
if (not $ENV{'form.problem_split'}=~/yes/) { |
|
$result="\\end{minipage}\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\\\begin{minipage}{\\textwidth}"; |
|
} else { |
|
$result="\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\"; |
|
} |
|
} |
|
} else { |
|
if ($target eq 'tex') { |
|
if (not $ENV{'form.problem_split'}=~/yes/) { |
|
$result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent'; |
|
} |
|
my $weight = &Apache::lonnet::EXT("resource.$id.weight"); |
|
if ($Apache::lonhomework::type eq 'exam') { $result .= '\fbox{\textit{'.$weight.' pt}}';} |
|
} |
|
} |
|
} |
|
} elsif ($target eq 'edit') { |
|
$result.=&Apache::edit::tag_start($target,$token); |
|
$result.=&Apache::edit::text_arg('Part ID:','id',$token). |
|
&Apache::loncommon::help_open_topic("Part_Tag_Edit_Help"). |
|
&Apache::edit::end_row().&Apache::edit::start_spanning_row(); |
|
} elsif ($target eq 'modified') { |
|
my $constructtag=&Apache::edit::get_new_args($token,$parstack, |
|
$safeeval,'id'); |
|
if ($constructtag) { |
|
$result = &Apache::edit::rebuild_tag($token); |
|
$result.=&Apache::edit::handle_insert(); |
|
} |
|
} |
|
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']; |
|
my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part); |
|
my $result=''; |
|
if ( $target eq 'meta' ) { |
|
$result=''; |
|
} elsif ( $target eq 'grade' && $status eq 'CAN_ANSWER' && !$hidden) { |
|
$result=&Apache::inputtags::grade; |
|
} elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) { |
|
my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part, |
|
$target); |
|
if ($Apache::lonhomework::type eq 'exam') {$gradestatus='';} |
|
$result=$gradestatus; |
|
} elsif ($target eq 'edit') { |
|
$result=&Apache::edit::end_table(); |
|
} |
|
pop @Apache::inputtags::status; |
|
$Apache::inputtags::part=''; |
|
return $result; |
|
} |
|
|
|
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::inputtags::status['-1'] ne 'SHOW_ANSWER') { |
|
&Apache::lonxml::get_all_text("/preduedate",$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); |
|
} |
|
} 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); |
|
} |
|
} |
|
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); |
|
} |
|
} |
|
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); |
|
$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::loncommon::helpLatexCheatsheet () . |
|
&Apache::edit::editfield($token->[1],$text,"",80,4); |
|
} |
|
if ($target eq 'modified') { |
|
$text=&Apache::lonxml::get_all_text("endouttext",$parser); |
|
$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 />'. |
|
&Apache::edit::handle_insertafter('startouttext'); } |
|
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); |
|
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($ntoken); |
|
return 1; |
|
} |
|
|
|
sub start_simpleeditbutton { |
|
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; |
|
my $result=''; |
|
if (($target eq 'web') && |
|
(&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) { |
|
my $url=$ENV{'REQUEST_URI'}; |
|
$url=~s/\?.*$//; |
|
$result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'. |
|
'<a href="'.$url.'/smpedit">Simple Problem Editor</a> - Note: it can take up to 10 minutes for changes to take effect for all users.'. |
|
&Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />'; |
|
} |
|
return $result; |
|
} |
|
|
|
sub end_simpleeditbutton { |
|
return ''; |
} |
} |
|
|
1; |
1; |