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Diff for /loncom/homework/structuretags.pm between versions 1.329 and 1.471

version 1.329, 2006/01/02 22:34:31 version 1.471, 2010/07/29 21:16:40
Line 27 Line 27
 #  #
 ###  ###
   
   =pod
   
   =head1 NAME
   
   Apache::structuretags
   
   =head1 SYNOPSIS
   
   
   This is part of the LearningOnline Network with CAPA project
   described at http://www.lon-capa.org.
   
   
   =head1 NOTABLE SUBROUTINES
   
   =over
   
   =item 
   
   =back
   
   =cut
   
   
 package Apache::structuretags;   package Apache::structuretags; 
   
Line 36  use Apache::File(); Line 59  use Apache::File();
 use Apache::lonmenu;  use Apache::lonmenu;
 use Apache::lonlocal;  use Apache::lonlocal;
 use Apache::lonxml;  use Apache::lonxml;
   use Apache::londefdef;
   use Apache::lonenc();
 use Time::HiRes qw( gettimeofday tv_interval );  use Time::HiRes qw( gettimeofday tv_interval );
   use lib '/home/httpd/lib/perl/';
   use LONCAPA;
    
 BEGIN {  BEGIN {
     &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));      &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
 }  }
   
 sub start_web {  sub start_web {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);      if ($target ne 'edit' && $target ne 'modified') {
     if ($target eq 'web') {   my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
  return $bodytext;   if ($target eq 'web' || $target eq 'webgrade') {
       return $bodytext;
    }
       } elsif ($target eq "edit" ) {
    my $bodytext = 
       &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
    my $result = &Apache::edit::tag_start($target,$token);
    $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
    return $result;
       } elsif ( $target eq "modified" ) {
    return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
     }      }
     return '';      return '';
 }  }
Line 57  sub end_web { Line 95  sub end_web {
 sub start_tex {  sub start_tex {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result='';      my $result='';
     my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);      if ($target ne 'edit' && $target ne 'modified') {
     if ($target eq 'tex') {   my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
  return $bodytext.' ';   if ($target eq 'tex') {
       
       # If inside a table, occurrences of \\ must be removed;
       # else the table blows up.
   
       if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
    $bodytext =~ s/\\\\//g;
       }
       return $bodytext.'{}';
    }
       } elsif ($target eq "edit" ) {
    my $bodytext = 
       &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
    my $result = &Apache::edit::tag_start($target,$token);
    $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
    return $result;
       } elsif ( $target eq "modified" ) {
    return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
     }      }
     return $result;;      return $result;;
 }  }
Line 68  sub end_tex { Line 123  sub end_tex {
     return '';      return '';
 }  }
   
 sub body_tag_start {  sub homework_js {
     my ($target,$background,$bgcolor)=@_;      return &Apache::loncommon::resize_textarea_js().
     my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.             &setmode_javascript().
  'onunload="'.&Apache::lonmenu::unloadevents().'" ';   <<'JS';
     if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }  <script type="text/javascript">
     if ($background) {  function setSubmittedPart (part) {
  &Apache::lonxml::extlink($background);     this.document.lonhomework.submitted.value="part_"+part;
  $body_tag_start.='background="'.$background.'" ';  }
     } else {  
  if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {  function image_response_click (which, e) {
     $body_tag_start.='bgcolor="'.$bgcolor.'" ';      init_geometry();
  } else {      if (!e) { e = window.event; } //IE
     $body_tag_start.='bgcolor="#ffffff"';      var input_element = document.lonhomework.elements[which];
  }      var token_element = document.lonhomework.elements[which+'_token'];
     }      var token = token_element.value;
     if ($env{'browser.fontenhance'} eq 'on') {      var img_element   = document.getElementById(which+'_imageresponse');
  $body_tag_start.=' style="font-size: x-large;" ';      var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
     }      var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
     $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);      var click = x+':'+y;
           input_element.value = click;
     &Apache::lontexconvert::jsMath_reset();      img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
     if ($env{'environment.texengine'} eq 'jsMath') {  }
  $body_tag_start.=&Apache::lontexconvert::jsMath_header();  
     }  </script>
     return $body_tag_start;  JS
   }
   
   sub setmode_javascript {
       return <<"ENDSCRIPT";
   <script type="text/javascript">
   function setmode(form,probmode) {
       form.problemmode.value = probmode;
       form.submit();
   }
   </script>
   ENDSCRIPT
 }  }
   
 sub page_start {  sub page_start {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
    $extra_head)=@_;
     my %found;      my %found;
     foreach my $taginside (@$tagstack) {      foreach my $taginside (@$tagstack) {
  foreach my $taglookedfor ('html','body','form') {   foreach my $taglookedfor ('html','body','form') {
Line 104  sub page_start { Line 171  sub page_start {
  }   }
     }      }
   
     my $result;      if ($target eq 'tex') {
     my $head_tag_start;   return
     if (!defined($found{'html'})) {      &Apache::londefdef::start_html($target,$token,$tagstack,
  $result=&Apache::londefdef::start_html($target,$token,$tagstack,     $parstack,$parser,$safeeval);
        $parstack,$parser,$safeeval);      }
  $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).  
     &Apache::lonhtmlcommon::htmlareaheaders().      $extra_head .= &homework_js();
     &Apache::lonhtmlcommon::spellheader().  
     &Apache::lonxml::fontsettings();           if ($env{'environment.wysiwygeditor'} eq 'on') {
  if ($target eq 'edit') {   $extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup");
     $head_tag_start.=&Apache::edit::js_change_detection();      } else {
           $extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
       }
   
       my %body_args;
       if (defined($found{'html'})) {
    $body_args{'skip_phases'}{'head'}=1;
       } else {
   
    $extra_head .= &Apache::lonhtmlcommon::spellheader();
   
    $extra_head .= &Apache::londefdef::generate_css_links();
   
    if ($env{'request.state'} eq 'construct') {
       $extra_head.=&Apache::edit::js_change_detection().
    "<script type=\"text/javascript\">\n".
    "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
    &Apache::loncommon::browser_and_searcher_javascript().
                   "\n</script>\n";
  }   }
     }      }
     my $body_tag_start;  
     if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {      my $pageheader = '';
  if ($env{'environment.remote'} eq 'off') {      if (defined($found{'body'})) {
     if ($target eq 'web' || $target eq 'edit') {   $body_args{'skip_phases'}{'body'}=1;
  $body_tag_start=&Apache::loncommon::bodytag();      } elsif (!defined($found{'body'}) 
  $body_tag_start.=&Apache::lonxml::message_location();       && $env{'request.state'} eq 'construct') {
     }   if ($target eq 'web' || $target eq 'edit') {
  } else {          # Breadcrumbs for Construction Space
     if ($target eq 'web' || $target eq 'edit') {          &Apache::lonhtmlcommon::clear_breadcrumbs();
  $body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);          &Apache::lonhtmlcommon::add_breadcrumb({
  $body_tag_start.=&Apache::lonxml::message_location();              'text'  => 'Construction Space',
     }              'href'  => &Apache::loncommon::authorspace(),
           });
           # breadcrumbs (and tools) will be created 
           # in start_page->bodytag->innerregister
   
   # FIXME Where are we?
   #        &Apache::lonhtmlcommon::add_breadcrumb({
   #            'text'  => 'Problem Editing', # 'Problem Testing'
   #            'href'  => '',
   #        });
           $pageheader =&Apache::loncommon::head_subbox(
                   &Apache::loncommon::CSTR_pageheader());
  }   }
     } elsif (!defined($found{'body'})) {      } elsif (!defined($found{'body'})) {
    my %add_entries;
  my $background=&Apache::lonxml::get_param('background',$parstack,   my $background=&Apache::lonxml::get_param('background',$parstack,
   $safeeval);    $safeeval);
    if ($background ne '' ) {
       $add_entries{'background'} = $background;
    }
   
  my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,   my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
        $safeeval);         $safeeval);
  $body_tag_start=&body_tag_start($target,$background,$bgcolor);          if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
  if ( ($target eq 'web' || $target eq 'webgrade')  
      && $env{'request.state'} ne 'construct') {          $body_args{'bgcolor'}        = $bgcolor;
     my ($symb,undef,undef,undef,$publicuser)=          # $body_args{'no_title'}       = 1;
  &Apache::lonxml::whichuser();          $body_args{'force_register'} = 1;
     if ($symb eq '' && !$publicuser) {          $body_args{'add_entries'}    = \%add_entries;
  my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");          if ( $env{'request.state'} eq   'construct') {
  $help=&mt("Browsing resource, all submissions are temporary.")."<br />";              $body_args{'only_body'}  = 1;
  $body_tag_start.=$help;          }
     }  
  }  
  $body_tag_start.=&Apache::lonxml::message_location();  
     }      }
       $body_args{'no_auto_mt_title'} = 1;
       my $page_start = &Apache::loncommon::start_page($name,$extra_head,
       \%body_args);
       $page_start .= $pageheader;
       if (!defined($found{'body'}) 
    && $env{'request.state'} ne 'construct'
    && ($target eq 'web' || $target eq 'webgrade')) {
   
    my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
           if ($symb eq '' && !$publicuser) {
               $page_start .= '<p class="LC_info">'
                             .&mt('Browsing resource, all submissions are temporary.')
                             .'</p>';
           }
       }
   
       if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
    $page_start .= &Apache::lonxml::message_location();
       }
       
     my $form_tag_start;      my $form_tag_start;
     if (!defined($found{'form'})) {      if (!defined($found{'form'})) {
  $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';   $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
  my $uri=$env{'request.uri'};   my $uri = &Apache::loncommon::inhibit_menu_check(
  if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }                  &Apache::lonenc::check_encrypt($env{'request.uri'}));
           $uri = &HTML::Entities::encode($uri,'<>&"');
  $form_tag_start.=$uri.'" ';   $form_tag_start.=$uri.'" ';
  if ($target eq 'edit') {   if ($target eq 'edit') {
     $form_tag_start.=&Apache::edit::form_change_detection();      $form_tag_start.=&Apache::edit::form_change_detection();
  }   }
  $form_tag_start.='>';   $form_tag_start.='>'."\n";
   
    my $symb=&Apache::lonnet::symbread();
    if ($symb =~ /\S/) {
       $symb=
    &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
       $form_tag_start.=
    "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
    }
     }      }
     return ($result,$head_tag_start,$body_tag_start,$form_tag_start);      return ($page_start,$form_tag_start);
 }  }
   
 #use Time::HiRes();  #use Time::HiRes();
 sub get_resource_name {  sub get_resource_name {
     my ($parstack,$safeeval)=@_;      my ($parstack,$safeeval)=@_;
       my $name;
     if (defined($Apache::lonhomework::name)) {      if (defined($Apache::lonhomework::name)) {
  return $Apache::lonhomework::name;   $name = $Apache::lonhomework::name;
     }      } else {
     my ($symb)=&Apache::lonxml::whichuser();   my ($symb)=&Apache::lonnet::whichuser();
     my $name=&Apache::lonnet::gettitle($symb);   $name=&Apache::lonnet::gettitle($symb);
     if ($name eq '') {   if ($name eq '') {
  $name=&Apache::lonnet::EXT('resource.title');      $name=&Apache::lonnet::EXT('resource.title');
  if ($name eq 'con_lost') { $name = ''; }      if ($name eq 'con_lost') { $name = ''; }
     }   }
     if ($name!~/\S+/) {   if ($name!~/\S+/) {
  $name=$env{'request.uri'};      $name=$env{'request.uri'};
  $name=~s-.*/([^/]+)$-$1-;      $name=~s-.*/([^/]+)$-$1-;
    }
    # The name has had html tags escaped:
          
    $name=~s/&lt;/</gs;
    $name=~s/&gt;/>/gs;
   
    $Apache::lonhomework::name=$name;
     }      }
     $Apache::lonhomework::name=$name;  
     return $name;      return $name;
 }  }
   
 sub setup_rndseed {  sub setup_rndseed {
     my ($safeeval)=@_;      my ($safeeval)=@_;
     my $rndseed;      my $rndseed;
     my ($symb)=&Apache::lonxml::whichuser();      my ($symb)=&Apache::lonnet::whichuser();
     if ($env{'request.state'} eq "construct" || $symb eq '' ||      if ($env{'request.state'} eq "construct" 
           $Apache::lonhomework::history{'resource.CODE'}) {   || $symb eq '' 
    || $Apache::lonhomework::type eq 'practice'
    || $Apache::lonhomework::history{'resource.CODE'}) {
  &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},   &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
  ['rndseed']);   ['rndseed']);
  $rndseed=$env{'form.rndseed'};   $rndseed=$env{'form.rndseed'};
Line 198  sub setup_rndseed { Line 334  sub setup_rndseed {
     }      }
     $env{'form.rndseed'}=$rndseed;      $env{'form.rndseed'}=$rndseed;
  }   }
  if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||   if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
         && $env{'form.submitted'} eq 'yes')  ||
     $env{'form.newrandomization'} eq &mt('New Randomization')) {      $env{'form.newrandomization'} eq &mt('New Randomization')) {
     srand(time);      srand(time);
     $rndseed=int(rand(2100000000));      $rndseed=int(rand(2100000000));
Line 227  sub remember_problem_state { Line 364  sub remember_problem_state {
        <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';         <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
 }  }
   
   sub problem_edit_buttons {
      return  '
   <div class="LC_edit_problem_discards">
          <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
          ' onclick="javscript:setmode(this.form,'."'discard'".')"  />
          <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
          <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
   </div>
   <div class="LC_edit_problem_saves">
          <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
          <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
   </div>';
   }
   
 sub problem_edit_header {  sub problem_edit_header {
     return '<input type="hidden" name="submitted" value="edit" />'.      return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
  &Apache::structuretags::remember_problem_state().'   &Apache::structuretags::remember_problem_state().'
        <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />  <div class="LC_edit_problem_header">
        <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />  <div class="LC_edit_problem_header_title">
        <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />  '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
        <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />  </div>'.
        <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />  &problem_edit_buttons().'
        <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.  <hr style="clear:both;" />
        &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')  '.&Apache::lonxml::message_location().'
        .'</td></tr></table>'.  </div>
        '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';  '.
          '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
 }  }
   
 sub problem_edit_footer {  sub problem_edit_footer {
     return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />      return '</td></tr></table><br />
     <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.  <div class="LC_edit_problem_footer">
     &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).    <hr />'.
     "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";  &problem_edit_buttons().'
     <hr style="clear:both;" />
   </div>
   '.
   
       &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
       "\n</form>\n".&Apache::loncommon::end_page();
 }  }
   
 sub option {  sub option {
Line 260  sub option { Line 418  sub option {
   
 sub problem_web_to_edit_header {  sub problem_web_to_edit_header {
     my ($rndseed)=@_;      my ($rndseed)=@_;
     my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';      my $result .= '<div class="LC_edit_problem_header">';
   
     if (!$Apache::lonhomework::parsing_a_task) {      if (!$Apache::lonhomework::parsing_a_task) {
  $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';   $result .= 
       '<div class="LC_edit_problem_header_title">'.
       &mt('Problem Testing').
       &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
       '</div>';
       } else {
    $result .= 
       '<div class="LC_edit_problem_header_title">'.
       &mt('Task Testing').
       '</div>';
     }      }
     $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />      
              <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />  
              <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />  
              <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />  
               <input type="text" name="rndseed" size="10" value="'.  
        $rndseed.'"  
            onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>  
              <label><input type="checkbox" name="showallfoils" ';  
     my $show_all_foils_text =       my $show_all_foils_text = 
  ($Apache::lonhomework::parsing_a_task) ?   ($Apache::lonhomework::parsing_a_task) ?
  &mt('&nbsp;Show&nbsp;All&nbsp;Instances')   &mt('Show All Instances')
  : &mt('&nbsp;Show&nbsp;All&nbsp;Foils');   : &mt('Show All Foils');
   
       my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
                    .'<input type="checkbox" name="showallfoils"';
       if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
       $show_all.= ' /> '.$show_all_foils_text
                  .'</label></span>';
   
     if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }  
     $result.= ' />'.$show_all_foils_text.  
  &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').      $result .= '<div class="LC_edit_problem_header_status_row">';
  '</label><hr />';  
     if (!$Apache::lonhomework::parsing_a_task) {      if (!$Apache::lonhomework::parsing_a_task) {
  $result.="   $result.="
 <nobr>  <div class='LC_edit_problem_header_row1'>
 Problem Status:  <span class=\"LC_nobreak\">
   ".&mt("Problem Status:")."
 <select name='problemstate'>  <select name='problemstate'>
   <option value=''></option>    <option value=''></option>
   ".&option('CLOSED'               ,'problemstate').&mt("Closed")."</option>    ".&option('CLOSED'               ,'problemstate').&mt("Closed")."</option>
Line 293  Problem Status: Line 460  Problem Status:
   ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>    ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
   ".&option('SHOW_ANSWER'          ,'problemstate').&mt("Show Answer")."</option>    ".&option('SHOW_ANSWER'          ,'problemstate').&mt("Show Answer")."</option>
 </select>  </select>
 </nobr>  </span>
 <nobr>  <span class=\"LC_nobreak\">
 Problem Type:  ".&mt("Problem Type:")."
 <select name='problemtype'>  <select name='problemtype'>
   <option value=''></option>    <option value=''></option>
   ".&option('exam'   ,'problemtype').&mt("Exam Problem")."</option>    ".&option('exam'   ,'problemtype').&mt("Exam Problem")."</option>
   ".&option('problem','problemtype').&mt("Homework problem")."</option>    ".&option('problem','problemtype').&mt("Homework Problem")."</option>
   ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>    ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
     ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
     ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
     ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
     ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
 </select>  </select>
 </nobr>  </span>
 <nobr>  $show_all
 Feedback Mode:  </div>
   <div class='LC_edit_problem_header_row2'>
   <span class=\"LC_nobreak\">
   ".&mt("Feedback Mode:")."
 <select name='problemstatus'>  <select name='problemstatus'>
   <option value=''></option>    <option value=''></option>
   ".&option('yes','problemstatus').&mt("Show Feedback")."</option>    ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
   ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>    ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
     ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
 </select>  </select>
 </nobr>  </span>
 <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />  ";
 <hr />";  
       } elsif ($Apache::lonhomework::parsing_a_task) {
    $result.="
   <div class='LC_edit_problem_header_row1'>
   <span class=\"LC_nobreak\">
   ".&mt("Problem Status:")."
   <select name='problemstate'>
     <option value=''></option>
     ".&option('CLOSED'               ,'problemstate').&mt("Closed")."</option>
     ".&option('CAN_ANSWER'           ,'problemstate').&mt("Answerable")."</option>
     ".&option('WEB_GRADE'            ,'problemstate').&mt("Criteria Grading")."</option>
     ".&option('SHOW_ANSWER'          ,'problemstate').&mt("Show Feedback")."</option>
   </select>
   </span>
   $show_all
   ";
       }
       $result.='
          <span class="LC_nobreak">
          '.&mt('Apply style file: ').'
            <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
            <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
          </span>
        </div>
        <div class="LC_edit_problem_header_row1">'.
          &Apache::lonxml::renderingoptions().'
        </div>
        <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
        <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
        <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
      </div>
      <hr />
      <div class="LC_edit_problem_header_randomize_row">
        <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
        <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
        <input type="text" name="rndseed" size="10" value="'.
          $rndseed.'"
                onchange="javascript:document.lonhomework.changerandseed.click()" />';
   
       if (!$Apache::lonhomework::parsing_a_task) {
  my $numtoanalyze=$env{'form.numtoanalyze'};   my $numtoanalyze=$env{'form.numtoanalyze'};
  if (!$numtoanalyze) { $numtoanalyze=20; }   if (!$numtoanalyze) { $numtoanalyze=20; }
  $result.= '<input type="submit" name="problemmode" value='.   $result .= '<span class="LC_nobreak">'.
     &mt('"Calculate answers').'" /> for      &mt('[_1] for [_2] versions.',
              <input type="text" name="numtoanalyze" value="'.   '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
      $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').                  'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
      '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",                 ,'<input type="text" name="numtoanalyze" value="'.
      '',undef,undef,300).   $numtoanalyze.'" size="5" />').
      '<hr />';   &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
     }   '</span>';
       
       }
   
       $result.='
      </div>
      <hr />
      <div>';
       $result.='<input type="hidden" name="problemmode" value="view" />';
       $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
                  'onclick="javascript:setmode(this.form,'."'edit'".')" />';
       $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
                  'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
       $result.='
      </div>
      <hr />
      '.&Apache::lonxml::message_location().'
   </div>';
     return $result;      return $result;
 }  }
   
 sub initialize_storage {  sub initialize_storage {
     %Apache::lonhomework::results=();      my ($given_symb) = @_;
     %Apache::lonhomework::history=();      undef(%Apache::lonhomework::results);
     my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();      undef(%Apache::lonhomework::history);
     if ($env{'request.state'} eq 'construct' || $symb eq '') {      my ($symb,$courseid,$domain,$name) = 
    &Apache::lonnet::whichuser($given_symb);
       
       # anonymous users (CODEd exams) have no data
       if ($name eq 'anonymous' 
    && !defined($domain)) {
    return;
       }
   
       if ($env{'request.state'} eq 'construct' 
    || $symb eq ''
    || $Apache::lonhomework::type eq 'practice') {
   
    my $namespace = $symb || $env{'request.uri'};
    if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
       ($env{'form.resetdata'} eq &mt('New Problem Variation')
        && $env{'form.submitted'} eq 'yes') ||
       $env{'form.newrandomization'} eq &mt('New Randomization')) {
       &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
       &Apache::lonxml::debug("Attempt reset");
    }
  %Apache::lonhomework::history=   %Apache::lonhomework::history=
     &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);      &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
  my ($temp)=keys %Apache::lonhomework::history ;   my ($temp)=keys %Apache::lonhomework::history ;
  &Apache::lonxml::debug("Return message of $temp");   &Apache::lonxml::debug("Return message of $temp");
     } else {      } else {
  %Apache::lonhomework::history=   %Apache::lonhomework::history=
     &Apache::lonnet::restore($symb,$courseid,$domain,$name);      &Apache::lonnet::restore($symb,$courseid,$domain,$name);
     }      }
   
     #ignore error conditions      #ignore error conditions
     my ($temp)=keys %Apache::lonhomework::history ;      my ($temp)=keys %Apache::lonhomework::history ;
     if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }      if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
 }  }
   
 # -------------------------------------------------------------finalize_storage  =pod
 # Stores away the result has to a student's environment  
 # checks form.grade_ for specific values, other wises stores  =item finalize_storage()
 # to the running users environment  
 # Will increment totals for attempts, students, and corrects   Stores away the result has to a student's environment
 # if running user has student role.     checks form.grade_ for specific values, other wises stores
    to the running users environment
    Will increment totals for attempts, students, and corrects
    if running user has student role.
   
   =cut
   
   
 sub finalize_storage {  sub finalize_storage {
       my ($given_symb) = @_;
     my $result;      my $result;
     if (%Apache::lonhomework::results) {      if (%Apache::lonhomework::results) {
  my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));   my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
  delete(@Apache::lonhomework::results{@remove});   delete(@Apache::lonhomework::results{@remove});
  my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();   my ($symb,$courseid,$domain,$name) = 
  if ($env{'request.state'} eq 'construct' || $symb eq '') {      &Apache::lonnet::whichuser($given_symb);
    if ($env{'request.state'} eq 'construct' 
       || $symb eq ''
       || $Apache::lonhomework::type eq 'practice') {
       my $namespace = $symb || $env{'request.uri'};
     $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};      $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
     $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,      $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
  $env{'request.uri'},'',$domain,$name);        $namespace,'',$domain,$name);
     &Apache::lonxml::debug('Construct Store return message:'.$result);      &Apache::lonxml::debug('Construct Store return message:'.$result);
  } else {   } else {
     $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,      $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
     $symb,$courseid,$domain,$name);      $symb,$courseid,$domain,$name);
     &Apache::lonxml::debug('Store return message:'.$result);      &Apache::lonxml::debug('Store return message:'.$result);
             if ($env{'request.role'} =~/^st/) {              &store_aggregates($symb,$courseid);
                 &store_aggregates($symb,$courseid);  
             }  
  }   }
     } else {      } else {
  &Apache::lonxml::debug('Nothing to store');   &Apache::lonxml::debug('Nothing to store');
     }      }
     return $result;      return $result;
 }  }
 use Data::Dumper;  
   
 # -------------------------------------------------------------store_aggregates  =pod
 # Sends hash of values to be incremented in nohist_resourcetracker.db  
 # for the course. Increments total number of attempts, unique students   item store_aggregates()
 # and corrects for each part for an instance of a problem, as appropriate.  
    Sends hash of values to be incremented in nohist_resourcetracker.db
    for the course. Increments total number of attempts, unique students 
    and corrects for each part for an instance of a problem, as appropriate.
   
   =cut
   
 sub store_aggregates {  sub store_aggregates {
     my ($symb,$courseid) = @_;      my ($symb,$courseid) = @_;
     my %aggregate;      my %aggregate;
Line 392  sub store_aggregates { Line 659  sub store_aggregates {
         }          }
     }      }
     foreach my $part (@parts) {      foreach my $part (@parts) {
         if ($Apache::lonhomework::results{'resource.'.$part.'.award'}          if ($env{'request.role'} =~/^st/) {
     eq 'APPROX_ANS' ||              if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
     $Apache::lonhomework::results{'resource.'.$part.'.award'}          eq 'APPROX_ANS' ||
     eq 'EXACT_ANS') {          $Apache::lonhomework::results{'resource.'.$part.'.award'}
             $aggregate{$symb."\0".$part."\0correct"} = 1;          eq 'EXACT_ANS') {
                   $aggregate{$symb."\0".$part."\0correct"} = 1;
               }
               if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
                   $aggregate{$symb."\0".$part."\0users"} = 1;
               } else {
                   my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]); 
                   if ($last_reset) {
                       if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
                           $aggregate{$symb."\0".$part."\0users"} = 1;
                       }
                   }
               }
               $aggregate{$symb."\0".$part."\0attempts"} = 1;
         }          }
         if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {          if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') || 
             $aggregate{$symb."\0".$part."\0users"} = 1;              ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred')) {
         } else {              $aggregate{$symb."\0".$part."\0anonymous"} = 1;
             my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);               my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
             if ($last_reset) {              if ($needsrelease) {   
                 if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {                  my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
                     $aggregate{$symb."\0".$part."\0users"} = 1;                  if ($curr_required eq '') {
                       &Apache::lonnet::update_released_required($needsrelease);
                   } else {
                       my ($currmajor,$currminor) = split(/\./,$curr_required);
                       my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
                       if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
                           &Apache::lonnet::update_released_required($needsrelease);
                       }
                 }                  }
             }              }
         }          }
         $aggregate{$symb."\0".$part."\0attempts"} = 1;  
     }      }
     if (keys (%aggregate) > 0) {      if (keys (%aggregate) > 0) {
  &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,   &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
Line 423  sub checkout_msg { Line 709  sub checkout_msg {
                 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',                  'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
                 'checkout'=>'Check out Exam for Viewing',                  'checkout'=>'Check out Exam for Viewing',
  'checkout?'=>'Check out Exam?');   'checkout?'=>'Check out Exam?');
       my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
     return (<<ENDCHECKOUT);      return (<<ENDCHECKOUT);
 <h2>$lt{'resource'}</h2>  <h2>$lt{'resource'}</h2>
     <p>$lt{'id_expln'}</p>      <p>$lt{'id_expln'}</p>
 <font color="red">  <p class="LC_warning">$lt{'warning'}</p>
 <p>$lt{'warning'}</p>  <form name="checkout" method="post" action="$uri">
 </font>  
 <form name="checkout" method="POST" action="$env{'request.uri'}">  
 <input type="hidden" name="doescheckout" value="yes" />  <input type="hidden" name="doescheckout" value="yes" />
 <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />  <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
 </form>  </form>
Line 438  ENDCHECKOUT Line 723  ENDCHECKOUT
   
 sub firstaccess_msg {  sub firstaccess_msg {
     my ($time,$symb)=@_;      my ($time,$symb)=@_;
     my ($map)=&Apache::lonnet::decode_symb($symb);      my $result;
     my $foldertitle=&Apache::lonnet::gettitle($map);      my @interval=&Apache::lonnet::EXT("resource.0.interval");
     &Apache::lonxml::debug("map is $map title is $foldertitle");      if ($interval[1] eq 'map') {
     return (<<ENDCHECKOUT);   my ($map)=&Apache::lonnet::decode_symb($symb);
 <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>   my $foldertitle=&Apache::lonnet::gettitle($map);
 <form name="markaccess" method="POST" action="$env{'request.uri'}">      
    &Apache::lonxml::debug("map is $map title is $foldertitle");
    $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
                                .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
                                ,$foldertitle,$time)."</h2>";
       } elsif ($interval[1] eq 'course') {
    my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
           $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
                                .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
                                ,$course,$time)."</h2>";
       } else {
    my $title=&Apache::lonnet::gettitle($symb);
           $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
                                .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
                                ,$title,$time)."</h2>";
       }
       my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
       my $buttontext = &mt('Show Resource');
       my $timertext = &mt('Start Timer?');
       $result .= (<<ENDCHECKOUT);
   <form name="markaccess" method="post" action="$uri">
 <input type="hidden" name="markaccess" value="yes" />  <input type="hidden" name="markaccess" value="yes" />
 <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />  <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
 </form>  </form>
 ENDCHECKOUT  ENDCHECKOUT
       return $result;
 }  }
   
 sub init_problem_globals {  sub init_problem_globals {
Line 459  sub init_problem_globals { Line 765  sub init_problem_globals {
     if ($type eq 'problem') {      if ($type eq 'problem') {
  $Apache::inputtags::part='0';   $Apache::inputtags::part='0';
  @Apache::inputtags::partlist=('0');   @Apache::inputtags::partlist=('0');
  $Apache::lonhomework::problemstatus=&get_problem_status('0');   &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
  $Apache::lonhomework::ignore_response_errors=0;   $Apache::lonhomework::ignore_response_errors=0;
   
     } elsif ($type eq 'library') {      } elsif ($type eq 'library') {
  $Apache::inputtags::part='';   $Apache::inputtags::part='';
  @Apache::inputtags::partlist=();   @Apache::inputtags::partlist=();
  $Apache::lonhomework::problemstatus='';   &Apache::lonhomework::reset_show_problem_status();
  $Apache::lonhomework::ignore_response_errors=1;   $Apache::lonhomework::ignore_response_errors=1;
   
     } elsif ($type eq 'Task') {      } elsif ($type eq 'Task') {
  $Apache::inputtags::part='0';   $Apache::inputtags::part='0';
  @Apache::inputtags::partlist=('0');   @Apache::inputtags::partlist=('0');
  $Apache::lonhomework::problemstatus='';   &Apache::lonhomework::reset_show_problem_status();
  $Apache::lonhomework::ignore_response_errors=1;   $Apache::lonhomework::ignore_response_errors=1;
     }      }
     @Apache::inputtags::responselist = ();      @Apache::inputtags::responselist = ();
Line 484  sub init_problem_globals { Line 790  sub init_problem_globals {
     @Apache::structuretags::whileline=();      @Apache::structuretags::whileline=();
     $Apache::lonhomework::scantronmode=0;      $Apache::lonhomework::scantronmode=0;
     undef($Apache::lonhomework::name);      undef($Apache::lonhomework::name);
       undef($Apache::lonhomework::default_type);
       undef($Apache::lonhomework::type);
 }  }
   
 sub reset_problem_globals {  sub reset_problem_globals {
Line 496  sub reset_problem_globals { Line 803  sub reset_problem_globals {
 #detect if we try to do 2 problems in one file  #detect if we try to do 2 problems in one file
 #   undef($Apache::lonhomework::parsing_a_problem);  #   undef($Apache::lonhomework::parsing_a_problem);
     undef($Apache::lonhomework::name);      undef($Apache::lonhomework::name);
       undef($Apache::lonhomework::default_type);
       undef($Apache::lonhomework::type);
       undef($Apache::lonhomework::scantronmode);
       undef($Apache::lonhomework::ignore_response_errors);
       &Apache::lonhomework::reset_show_problem_status();
 }  }
   
 sub set_problem_state {  sub set_problem_state {
Line 545  sub start_problem { Line 857  sub start_problem {
  $Apache::lonhomework::scantronmode=1;   $Apache::lonhomework::scantronmode=1;
     }      }
   
     &initialize_storage();  
     if ($target ne 'analyze') {      if ($target ne 'analyze') {
  if ($target eq 'web') {          my $type = &Apache::lonnet::EXT('resource.0.type');
     &Apache::lonhomework::showhash(%Apache::lonhomework::history);   $Apache::lonhomework::type=$type;
  }  
         if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }  
  $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');  
  if (($env{'request.state'} eq 'construct') &&   if (($env{'request.state'} eq 'construct') &&
     defined($env{'form.problemtype'})) {      $env{'form.problemtype'} =~ /\S/) {
     $Apache::lonhomework::type=$env{'form.problemtype'};      $Apache::lonhomework::type=$env{'form.problemtype'};
  }   }
  &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");   &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
     }      }
     if ($Apache::lonhomework::type eq '' ) {      if ($Apache::lonhomework::type eq '' ) {
  my $uri=$env{'request.uri'};   my $uri=$env{'request.uri'};
Line 570  sub start_problem { Line 878  sub start_problem {
     }      }
     $Apache::lonhomework::default_type = $Apache::lonhomework::type;      $Apache::lonhomework::default_type = $Apache::lonhomework::type;
   
       &initialize_storage();
       if ($target ne 'analyze'
           && $env{'request.state'} eq 'construct') {
    &set_problem_state('0');
       }
   
       if ($target eq 'web') {
    &Apache::lonxml::debug(" grading history ");
    &Apache::lonhomework::showhash(%Apache::lonhomework::history);
       }
   
     #added vars to the scripting enviroment      #added vars to the scripting enviroment
     my $expression='$external::part=\''.$Apache::inputtags::part.'\';';      my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
     $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';      $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
Line 577  sub start_problem { Line 896  sub start_problem {
     my $status;      my $status;
     my $accessmsg;      my $accessmsg;
   
     #should get back a <html> or the neccesary stuff to start XML/MathML      my $name= &get_resource_name($parstack,$safeeval);
     my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=      my ($result,$form_tag_start);
  &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);      if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
    || $target eq 'edit') {
    ($result,$form_tag_start) =
       &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
    $name);
       }
   
     if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}      if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
   
     if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }      if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||      if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
  $target eq 'tex') {   $target eq 'tex') {
  #handle exam checkout  
  if ($Apache::lonhomework::type eq 'exam') {  
     my $token=  
  $Apache::lonhomework::history{"resource.0.outtoken"};  
     if (($env{'form.doescheckout'}) && (!$token)) {  
  $token=&Apache::lonxml::maketoken();  
  $Apache::lonhomework::history{"resource.0.outtoken"}=  
     $token;  
     }  
     $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);  
  }  
  if ($env{'form.markaccess'}) {   if ($env{'form.markaccess'}) {
     &Apache::lonnet::set_first_access('map');      my @interval=&Apache::lonnet::EXT("resource.0.interval");
       &Apache::lonnet::set_first_access($interval[1]);
  }   }
  #handle rand seed in construction space   #handle rand seed in construction space
  my $rndseed=&setup_rndseed($safeeval);   my $rndseed=&setup_rndseed($safeeval);
  my ($symb)=&Apache::lonxml::whichuser();   my ($symb)=&Apache::lonnet::whichuser();
  if ($env{'request.state'} ne "construct" && $symb eq '') {   if ($env{'request.state'} ne "construct" && 
       ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
     $form_tag_start.='<input type="hidden" name="rndseed" value="'.      $form_tag_start.='<input type="hidden" name="rndseed" value="'.
  $rndseed.'" />'.   $rndseed.'" />'.
     '<input type="submit" name="resetdata"      '<input type="submit" name="resetdata"
                              value="'.&mt('New Problem Variation').'" />'.                               value="'.&mt('New Problem Variation').'" />';
       if (exists($env{'form.username'})) {
    $form_tag_start.=
     '<input type="hidden" name="username"      '<input type="hidden" name="username"
                              value="'.$env{'form.username'}.'" />';                               value="'.$env{'form.username'}.'" />';
     if ($env{'user.adv'}) {      }
  $form_tag_start.=      if ($env{'request.role.adv'}) {
     ' <label><input type="checkbox" name="showallfoils" ';   $form_tag_start.= ' <label class="LC_nobreak">'
                            .'<input type="checkbox" name="showallfoils"';
  if (defined($env{'form.showallfoils'})) {   if (defined($env{'form.showallfoils'})) {
     $form_tag_start.='checked="on"';      $form_tag_start.=' checked="checked"';
  }   }
  $form_tag_start.= ' />'.&mt('&nbsp;Show&nbsp;All&nbsp;Foils').                  $form_tag_start.= ' /> '
     '</label>';                                   .&mt('Show All Foils')
                                    .'</label>';
     }      }
               if ($Apache::lonhomework::type eq 'practice') {
                   $form_tag_start.=&practice_problem_header();
               }
     $form_tag_start.='<hr />';      $form_tag_start.='<hr />';
  }   }
   
Line 640  sub start_problem { Line 963  sub start_problem {
     my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,      my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
        $style);         $style);
     if ( $target eq "web" ) {      if ( $target eq "web" ) {
  $result.= $head_tag_start.'</head>';   my $msg;
  my $msg=$body_tag_start;  
  if ($status eq 'UNAVAILABLE') {   if ($status eq 'UNAVAILABLE') {
     $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';      $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
                   } elsif ($status eq 'NOT_IN_A_SLOT') {
                       $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
  } elsif ($status ne 'NOT_YET_VIEWED') {   } elsif ($status ne 'NOT_YET_VIEWED') {
     $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';      $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
  }   }
  if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {   if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
     $msg.='The problem '.$accessmsg;      $msg.=&mt('The problem ').$accessmsg;
  } elsif ($status eq 'UNCHECKEDOUT') {   } elsif ($status eq 'UNCHECKEDOUT') {
     $msg.=&checkout_msg;      $msg.=&checkout_msg();
  } elsif ($status eq 'NOT_YET_VIEWED') {   } elsif ($status eq 'NOT_YET_VIEWED') {
     $msg.=&firstaccess_msg($accessmsg,$symb);      $msg.=&firstaccess_msg($accessmsg,$symb);
  } elsif ($status eq 'NOT_IN_A_SLOT') {   } elsif ($status eq 'NOT_IN_A_SLOT') {
     $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");      $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
  }   }
  $result.=$msg.'<br />';   $result.=$msg.'<br />';
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $result.='\begin{document}\noindent \vskip 1 mm  \begin{minipage}{\textwidth}\vskip 0 mm';   my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
                       : '\begin{minipage}{\textwidth}';
    $result.='\noindent \vskip 1 mm '.
       $startminipage.'\vskip 0 mm';
  if ($status eq 'UNAVAILABLE') {   if ($status eq 'UNAVAILABLE') {
     $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';      $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
  } else {   } else {
Line 669  sub start_problem { Line 996  sub start_problem {
     my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,      my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
        $style);         $style);
     if ($target eq 'web') {      if ($target eq 'web') {
  $result .= $head_tag_start.'</head>';   $result .= 
  $result .= $body_tag_start;      &Apache::bridgetask::proctor_validation_screen($slot);
  $result .= &Apache::bridgetask::proctor_validation_screen();  
     } elsif ($target eq 'grade') {      } elsif ($target eq 'grade') {
  &Apache::bridgetask::proctor_check_auth($slot_name,$slot,   &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
  'problem');   'problem');
     }      }
  } elsif ($target eq 'web') {   } elsif ($target eq 'web') {
     my $name= &get_resource_name($parstack,$safeeval);      if ($status eq 'CAN_ANSWER' 
     $result.="$head_tag_start<title>$name</title></head>   && $slot_name ne ''
               $body_tag_start \n $form_tag_start".   && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
    # unproctored slot access, self checkin
    &Apache::bridgetask::check_in('problem',undef,undef,
         $slot_name);
       }
       $result.="\n $form_tag_start \t".
       '<input type="hidden" name="submitted" value="yes" />';        '<input type="hidden" name="submitted" value="yes" />';
     # create a page header and exit      # create a page header and exit
     if ($env{'request.state'} eq "construct") {      if ($env{'request.state'} eq "construct") {
  $result.= &problem_web_to_edit_header($env{'form.rndseed'});   $result.= &problem_web_to_edit_header($env{'form.rndseed'});
                   if ($Apache::lonhomework::type eq 'practice') {
                       $result.= '<input type="submit" name="resetdata" '.
                                 'value="'.&mt('New Problem Variation').'" />'.
                                 &practice_problem_header().'<hr />';
                   }
     }      }
     # if we are viewing someone else preserve that info      # if we are viewing someone else preserve that info
     if (defined $env{'form.grade_symb'}) {      if (defined $env{'form.grade_symb'}) {
Line 697  sub start_problem { Line 1033  sub start_problem {
   
  }   }
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.   $result .= $form_tag_start.&problem_edit_header();
     &problem_edit_header();  
  $Apache::lonxml::warnings_error_header=   $Apache::lonxml::warnings_error_header=
     &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";      &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
  my $temp=&Apache::edit::insertlist($target,$token);   my $temp=&Apache::edit::insertlist($target,$token);
  $result.=$temp;   $result.=$temp;
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  $result=$token->[4];   $result=$token->[4];
  $result.=&Apache::edit::handle_insert();  
     } else {      } else {
  # page_start returned a starting result, delete it if we don't need it   # page_start returned a starting result, delete it if we don't need it
  $result = '';   $result = '';
Line 723  sub end_problem { Line 1057  sub end_problem {
     }      }
   
     if ($target eq 'tex') {      if ($target eq 'tex') {
   
  # Figure out the front matter and replace the   # Figure out the front matter and replace the
  # INSERTTEXFRONTMATTERHERE in result with it.  note that we do   # INSERTTEXFRONTMATTERHERE in result with it.  note that we do
  # this in end_problem because whether or not we display due   # this in end_problem because whether or not we display due
Line 752  sub end_problem { Line 1085  sub end_problem {
     $allow_print_points=0;      $allow_print_points=0;
  }   }
  my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');   my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
  my $begin_doc='\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';   my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
  my $toc_line='\vskip 1 mm\noindent '.$startminipage.   my $toc_line='\vskip 1 mm\noindent '.$startminipage.
     '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';      '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
   
Line 762  sub end_problem { Line 1095  sub end_problem {
   
  my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");    my $duetime = &Apache::lonnet::EXT("resource.$id.duedate"); 
  my $duedate = POSIX::strftime("%c",localtime($duetime));   my $duedate = POSIX::strftime("%c",localtime($duetime));
           my $duedate_text = &mt('Due date: [_1]'
                                 ,&Apache::lonlocal::locallocaltime($duetime));
  my $temp_file;   my $temp_file;
  my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";   my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
   
Line 793  sub end_problem { Line 1128  sub end_problem {
     if (not $env{'request.symb'} =~ m/\.page_/) {      if (not $env{'request.symb'} =~ m/\.page_/) {
  if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {   if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
     $frontmatter .= $begin_doc.      $frontmatter .= $begin_doc.
  '\textit{Due date: '.$duedate.'} '.$toc_line;   '\textit{'.$duedate_text.'} '.$toc_line;
  } else {   } else {
     $frontmatter.= $begin_doc.$toc_line;      $frontmatter.= $begin_doc.$toc_line;
     if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}      if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { 
    $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
       }
  }   }
     } else {      } else {
  $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';   $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
     }      }
  } else {   } else {
     if (not $env{'request.symb'} =~ m/\.page_/) {      if (not $env{'request.symb'} =~ m/\.page_/) {
  $frontmatter .= $begin_doc.$toc_line;   $frontmatter .= $begin_doc.$toc_line;
  if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}   if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { 
       $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
    }
     } else {      } else {
  $frontmatter .= '\vskip 1mm \\\\\\\\';   $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
     }      }
  }   }
  $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;   $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
Line 840  sub end_problem { Line 1179  sub end_problem {
     if ($target ne 'tex' &&      if ($target ne 'tex' &&
  $env{'form.answer_output_mode'} ne 'tex') {   $env{'form.answer_output_mode'} ne 'tex') {
  $result.="</form>";   $result.="</form>";
  $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);   $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
     }      }
     if ($target eq 'web') {      if ($target eq 'web') {
  $result.=&Apache::lonxml::xmlend().'</html>';   $result.= &Apache::loncommon::end_page({'discussion' => 1});
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  my $endminipage = '';   my $endminipage = '';
  if (not $env{'form.problem_split'}=~/yes/) {   if (not $env{'form.problem_split'}=~/yes/) {
Line 851  sub end_problem { Line 1190  sub end_problem {
  }   }
                 if ($env{'form.print_discussions'} eq 'yes') {                  if ($env{'form.print_discussions'} eq 'yes') {
     $result.=&Apache::lonxml::xmlend($target,$parser);      $result.=&Apache::lonxml::xmlend($target,$parser);
     $result=~s/<\/html>//;  
  } else {   } else {
     $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';      $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
     if (not $env{'request.symb'} =~ m/\.page_/) {      if (not $env{'request.symb'} =~ m/\.page_/) {
  $result .= $endminipage.'\end{document} ';   $result .= $endminipage.'\end{document} ';
     } else {      } else {
  $result .= '';   $result .= $endminipage;
     }      }
  }   }
     }      }
Line 868  sub end_problem { Line 1206  sub end_problem {
  }   }
  if ($target eq 'answer' && ($env{'request.state'} eq 'construct')   if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
     && $env{'form.answer_output_mode'} ne 'tex') {      && $env{'form.answer_output_mode'} ne 'tex') {
     $result.=&Apache::lonxml::xmlend().'</html>';      $result.=&Apache::loncommon::end_page({'discussion' => 1});
                         # normally we get it from above, but in CSTR                          # normally we get it from above, but in CSTR
                         # we always show answer mode too.                          # we always show answer mode too.
  }   }
Line 884  sub end_problem { Line 1222  sub end_problem {
  $result .= &problem_edit_footer();   $result .= &problem_edit_footer();
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  $result .= $token->[2];   $result .= $token->[2];
  $result.=&Apache::edit::handle_insertafter($token->[1]);  
     }      }
   
     if ($env{'request.state'} eq 'construct' && $target eq 'web') {      if ($env{'request.state'} eq 'construct' && $target eq 'web') {
Line 899  sub end_problem { Line 1236  sub end_problem {
   
 sub start_library {  sub start_library {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my ($result,$head_tag_start,$body_tag_start,$form_tag_start);      my ($result,$form_tag_start);
     if ($$tagstack[0] eq 'library') {      if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
  &init_problem_globals('library');   &init_problem_globals('library');
  $Apache::lonhomework::type='problem';   $Apache::lonhomework::type='problem';
     }      }
     if ($target eq 'edit') {      if ($target eq 'edit') {
  ($result,$head_tag_start,$body_tag_start,$form_tag_start)=   ($result,$form_tag_start)=
     &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);      &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
  $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.   'Edit');
     &problem_edit_header();   $result.=$form_tag_start.&problem_edit_header();
  my $temp=&Apache::edit::insertlist($target,$token);   my $temp=&Apache::edit::insertlist($target,$token);
  $result.=$temp;   $result.=$temp;
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  $result=$token->[4];   $result=$token->[4];
  $result.=&Apache::edit::handle_insert();      } elsif (($target eq 'web' || $target eq 'webgrade')
     } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&       && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
      $env{'request.state'} eq "construct" ) {       && $env{'request.state'} eq "construct" ) {
  ($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 $name=&get_resource_name($parstack,$safeeval);
    ($result,$form_tag_start)=
       &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
    $name);
  my $rndseed=&setup_rndseed($safeeval);   my $rndseed=&setup_rndseed($safeeval);
  $result.="$head_tag_start<title>$name</title></head>   $result.=" \n $form_tag_start".
               $body_tag_start \n $form_tag_start".  
   '<input type="hidden" name="submitted" value="yes" />';    '<input type="hidden" name="submitted" value="yes" />';
  $result.=&problem_web_to_edit_header($rndseed);   $result.=&problem_web_to_edit_header($rndseed);
           if ($Apache::lonhomework::type eq 'practice') {
               $result.= '<input type="submit" name="resetdata" '.
                         'value="'.&mt('New Problem Variation').'" />'.
                         &practice_problem_header().'<hr />';
           }
     }      }
     return $result;      return $result;
 }  }
Line 933  sub end_library { Line 1275  sub end_library {
     my $result='';      my $result='';
     if ($target eq 'edit') {      if ($target eq 'edit') {
  $result=&problem_edit_footer();   $result=&problem_edit_footer();
     } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&      } elsif ($target eq 'web' 
      $env{'request.state'} eq "construct") {       && ($#$tagstack eq 0 && $$tagstack[0] eq 'library') 
  $result.='</form>'.&Apache::loncommon::endbodytag().       && $env{'request.state'} eq "construct") {
     &Apache::lonxml::xmlend();   $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
       }
       if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
    &reset_problem_globals('library');
     }      }
     if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };  
     return $result;      return $result;
 }  }
   
Line 949  sub start_definetag { Line 1293  sub start_definetag {
   
     my $name = $token->[2]->{'name'};      my $name = $token->[2]->{'name'};
     my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);      my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
     if ($name=~/^\//) {      if ($target eq 'web') {
  $result=   if ($name=~/^\//) {
  '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';      $result=
     } else {   '<br /><table class="LC_sty_end"><tr><th>'.
  $result=   &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
  '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';   } else {
       $result=
    '<br /><table class="LC_sty_begin"><tr><th>'.
    &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
    }
    $skip = &HTML::Entities::encode($skip, '<>&"');
    $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
     }      }
     $skip=~s/\</\&lt\;/gs;  
     $skip=~s/\>/\&gt\;/gs;  
     $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';  
     return $result;      return $result;
 }  }
   
Line 971  sub start_block { Line 1318  sub start_block {
   
     my $result;      my $result;
   
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||      if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer'  ||
  $target eq 'tex' || $target eq 'analyze') {   $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
  my $code = $token->[2]->{'condition'};   my $code = $token->[2]->{'condition'};
  if (defined($code)) {   if (defined($code) && $code ne '') {
     if (!$Apache::lonxml::default_homework_loaded) {      if (!$Apache::lonxml::default_homework_loaded) {
  &Apache::lonxml::default_homework_load($safeeval);   &Apache::lonxml::default_homework_load($safeeval);
     }      }
Line 1015  sub start_languageblock { Line 1362  sub start_languageblock {
   
     my $result;      my $result;
   
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||      if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
  $target eq 'tex' || $target eq 'analyze') {   $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
  my $include = $token->[2]->{'include'};   my $include = $token->[2]->{'include'};
  my $exclude = $token->[2]->{'exclude'};   my $exclude = $token->[2]->{'exclude'};
         my %languages=&Apache::loncommon::display_languages();          my @preferred_languages=&Apache::lonlocal::preferred_languages();
         $result='1';  # This should not even happen, since we should at least have the server language
  if ($include) {          if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
             $result='';  # Now loop over all languages in order of preference
             foreach (split(/\,/,$include)) {          foreach my $preferred_language (@preferred_languages) {
                 if ($languages{$_}) { $result='1'; }  # If the languageblock has no arguments, show the contents
             }             $result=1;
  }             my $found=0;
         if ($exclude) {  # Do we have an include argument?
             foreach (split(/\,/,$exclude)) {     if ($include) {
                 if ($languages{$_}) { $result='0'; }  # If include is specified, by default, don't render the block
             }                $result=0;
  }                foreach my $included_language (split(/\,/,$include)) {
   # ... but if my preferred language is included, render it
                    if ($included_language eq $preferred_language) {
                       $result=1; 
                       $found=1; 
                    }
                 }
      }
   # Do we have an exclude argument?
              if ($exclude) {
                 $result=1;
                 foreach my $excluded_language (split(/\,/,$exclude)) {
                    if ($excluded_language eq $preferred_language) {
                       $result=0;
                       $found=1;
                    }
                 }
      }
              if ($found) { last; }
           }
  if ( ! $result ) {   if ( ! $result ) {
     my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,      my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
    $style);     $style);
Line 1063  sub end_languageblock { Line 1429  sub end_languageblock {
     return $result;      return $result;
 }  }
   
   {
       my %available_texts;
       sub start_translated {
    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
    &Apache::lonxml::register('Apache::structuretags',('lang'));
    undef(%available_texts);
       }
       
       sub end_translated {
    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
    my $result;
    #show the translation on viewable targets
    if ($target eq 'web'     || $target eq 'tex' || $target eq 'webgrade'||
       # or non-viewable targets, if it's embedded in something that
       # wants the output
       (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
        && &Apache::lonxml::in_redirection() ) ) {
       my @possibilities = keys(%available_texts);
       my $which = 
    &Apache::loncommon::languages(\@possibilities) || 'default';
       $result = $available_texts{$which};
    }
    undef(%available_texts);
    &Apache::lonxml::deregister('Apache::structuretags',('lang'));
    return $result;
       }
   
   
       sub start_lang {
    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
    if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
       $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
       &Apache::lonxml::startredirection();
    }
    return '';
       }
   
       sub end_lang {
    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
    if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
       $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
       my $result = &Apache::lonxml::endredirection();
       my $which = &Apache::lonxml::get_param('which',$parstack,
      $safeeval);
               if ($which=~/\w/) {
                   $available_texts{$which} = $result;
               }
               my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
                                                           $safeeval);
               foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
                   if ($language=~/\w/) {
                       $available_texts{$language} = $result;
                   }
               }
   
    }
    return '';
       }
   }
   
 sub start_instructorcomment {  sub start_instructorcomment {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   
     my $result;      my $result;
   
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||      if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
  $target eq 'tex' || $target eq 'analyze') {   $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
         $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);          $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
  if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {   if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
     my $skip=&Apache::lonxml::get_all_text("/instructorcomment",      my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
    $parser,$style);     $parser,$style);
Line 1097  sub start_while { Line 1523  sub start_while {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   
     my $result;      my $result;
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||      if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
  $target eq 'tex' || $target eq 'analyze') {   $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
  my $code = $token->[2]->{'condition'};   my $code = $token->[2]->{'condition'};
   
  push( @Apache::structuretags::whileconds, $code);   push( @Apache::structuretags::whileconds, $code);
Line 1130  sub end_while { Line 1556  sub end_while {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result;      my $result;
   
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||      if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
  $target eq 'tex' || $target eq 'analyze') {   $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
  my $code = pop(@Apache::structuretags::whileconds);   my $code = pop(@Apache::structuretags::whileconds);
  my $bodytext = pop(@Apache::structuretags::whilebody);   my $bodytext = pop(@Apache::structuretags::whilebody);
  my $line = pop(@Apache::structuretags::whileline);   my $line = pop(@Apache::structuretags::whileline);
Line 1141  sub end_while { Line 1567  sub end_while {
  while ($return) {   while ($return) {
     if (time-$starttime >      if (time-$starttime >
  $Apache::lonnet::perlvar{'lonScriptTimeout'}) {   $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
  #$return = 0; $error=1; next;   $return = 0; $error=1; next;
     }      }
     $result.=&Apache::scripttag::xmlparse($bodytext);      $result.=&Apache::scripttag::xmlparse($bodytext);
       if ($target eq 'grade' || $target eq 'answer' ||
    $target eq 'analyze') {
    # grade/answer/analyze should produce no output but if we
    # are redirecting, the redirecter should know what to do
    # with the output
    if (!$Apache::lonxml::redirection) { undef($result); }
       }
     $return = &Apache::run::run($code,$safeeval);      $return = &Apache::run::run($code,$safeeval);
  }   }
  if ($error) {   if ($error) {
     &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running &lt;while&gt; on line').' '.$line.'</pre>');      &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occurred while running &lt;while&gt; on line').' '.$line.'</pre>');
  }   }
     } elsif ($target eq "edit") {      } elsif ($target eq "edit") {
  $result.= &Apache::edit::tag_end($target,$token,'');   $result.= &Apache::edit::tag_end($target,$token,'');
Line 1164  sub end_while { Line 1597  sub end_while {
 sub start_randomlist {  sub start_randomlist {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result;      my $result;
     if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||      if ($target eq 'answer' || $target eq 'grade'   || $target eq 'web' ||
  $target eq 'tex' || $target eq 'analyze') {   $target eq 'tex'    || $target eq 'analyze' || $target eq 'webgrade') {
  my $body= &Apache::lonxml::get_all_text("/randomlist",$parser,$style);   my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
  my $b_parser= HTML::LCParser->new(\$body);   my $b_parser= HTML::LCParser->new(\$body);
  $b_parser->xml_mode(1);   $b_parser->xml_mode(1);
  $b_parser->marked_sections(1);   $b_parser->marked_sections(1);
Line 1201  sub start_randomlist { Line 1634  sub start_randomlist {
     my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);      my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
     $showarg--;      $showarg--;
     if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }      if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
               if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
                   my @currlist;
                   my $part = $Apache::inputtags::part;
                   if ($part ne '') {
                       if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
                           my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
                           if (!(grep(/^\Q$part\E$/,@currlist))) {
                               push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
                           }
                       } else {
                           push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
                       }
                   }
               }
     for(0 .. $show) {      for(0 .. $show) {
  $bodytext .= "$randomlist[ $idx_arr[$_] ]";   $bodytext .= "$randomlist[ $idx_arr[$_] ]";
     }      }
Line 1254  sub ordered_show_check { Line 1701  sub ordered_show_check {
     return $in_order_show;      return $in_order_show;
 }  }
   
   
   sub start_startpartmarker {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result='';
       if ($target eq 'edit') {
           $result=&Apache::edit::tag_start($target,$token);
           $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
           $result.=&Apache::edit::end_table();
   
       } 
       return $result;
   }
   
   sub end_startpartmarker {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my @result;
       if ($target eq 'edit') { $result[1]='no'; }
       return @result;
   }
   
   sub start_endpartmarker {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result='';
       if ($target eq 'edit') {
           $result=&Apache::edit::tag_start($target,$token);
           $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
           $result.=&Apache::edit::end_table();
   
       }
       return $result;
   }
   
   sub end_endpartmarker {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my @result;
       if ($target eq 'edit') { $result[1]='no'; }
       return @result;
   }
   
   
   
   
   
 sub start_part {  sub start_part {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     if (!$Apache::lonxml::metamode) {      if (!$Apache::lonxml::metamode) {
Line 1261  sub start_part { Line 1751  sub start_part {
                                      # duedates.                                       # duedates.
     }      }
     my $result='';      my $result='';
     my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);      my $id= &Apache::lonxml::get_id($parstack,$safeeval);
     if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }  
     $Apache::inputtags::part=$id;      $Apache::inputtags::part=$id;
     push(@Apache::inputtags::partlist,$id);      push(@Apache::inputtags::partlist,$id);
     @Apache::inputtags::response=();      @Apache::inputtags::response=();
     @Apache::inputtags::previous=();      @Apache::inputtags::previous=();
     @Apache::inputtags::previous_version=();      @Apache::inputtags::previous_version=();
     $Apache::lonhomework::problemstatus=&get_problem_status($id);      &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
       &Apache::response::reset_params();
   
     my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);      my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
     my $newtype=&Apache::lonnet::EXT("resource.$id.type");      my $newtype=&Apache::lonnet::EXT("resource.$id.type");
     if ($newtype) { $Apache::lonhomework::type=$newtype; }      if ($newtype) { $Apache::lonhomework::type=$newtype; }
Line 1315  sub start_part { Line 1806  sub start_part {
  if ($target eq 'tex') {   if ($target eq 'tex') {
     if (not $env{'form.problem_split'}=~/yes/) {      if (not $env{'form.problem_split'}=~/yes/) {
  if ($$tagstack[-2] eq 'td') {   if ($$tagstack[-2] eq 'td') {
     $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';      $result.='\noindent \begin{minipage}{\textwidth}\noindent';
  } else {   } else {
     $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';      $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
  }   }
Line 1337  sub start_part { Line 1828  sub start_part {
     '.disableexampointprint'}) eq 'yes') {      '.disableexampointprint'}) eq 'yes') {
  $allow_print_points=0;   $allow_print_points=0;
     }      }
     if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}      if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { 
    $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
   
       }
  } elsif ($target eq 'web') {   } elsif ($target eq 'web') {
     $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';      $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
  }   }
     }      }
  }   }
Line 1357  sub start_part { Line 1851  sub start_part {
     #limiting ids to only letters numbers, and space      #limiting ids to only letters numbers, and space
     $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;      $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
     $result = &Apache::edit::rebuild_tag($token);      $result = &Apache::edit::rebuild_tag($token);
     $result.=&Apache::edit::handle_insert();  
  }   }
     }      }
     return $result;      return $result;
Line 1395  sub end_part { Line 1888  sub end_part {
  $result.=&Apache::edit::end_table();   $result.=&Apache::edit::end_table();
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  $result .= $token->[2];   $result .= $token->[2];
  $result.=&Apache::edit::handle_insertafter($token->[1]);  
     }      }
     pop @Apache::inputtags::status;      pop @Apache::inputtags::status;
     $Apache::inputtags::part='';      $Apache::inputtags::part='';
Line 1405  sub end_part { Line 1897  sub end_part {
   
 sub start_preduedate {  sub start_preduedate {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {      if ($target eq 'web' || $target eq 'grade'    || $target eq 'answer' ||
    $target eq 'tex' || $target eq 'webgrade') {
  &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);   &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
  if (!$Apache::lonhomework::scantronmode &&   if (!$Apache::lonhomework::scantronmode &&
     $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&      $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
Line 1421  sub end_preduedate { Line 1914  sub end_preduedate {
     return '';      return '';
 }  }
   
   # In all the modes where <postanswerdate> text is 
   # displayable,  all we do is eat up the text between the start/stop
   # tags if the conditions are not right to display it.
 sub start_postanswerdate {  sub start_postanswerdate {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     if ($target eq 'web' || $target eq 'grade') {      my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
    &Apache::lonnet::allowed('pav',
      $env{'request.course.id'}.'/'.$env{'request.course.sec'});
       if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
    $target eq 'tex' ) {
  if ($Apache::lonhomework::scantronmode ||   if ($Apache::lonhomework::scantronmode ||
     $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {      $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
       (($target eq 'tex') && !$pav)) {
     &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);      &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
  }   }
     } elsif ($target eq 'tex') {  
  &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);  
     }      }
     return '';      return '';
 }  }
Line 1441  sub end_postanswerdate { Line 1940  sub end_postanswerdate {
 sub start_notsolved {  sub start_notsolved {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||      if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
  $target eq 'tex') {   $target eq 'tex' || $target eq 'webgrade') {
  my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};   my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
  &Apache::lonxml::debug("not solved has :$gradestatus:");   &Apache::lonxml::debug("not solved has :$gradestatus:");
  if ($gradestatus =~ /^correct/ &&   if ($gradestatus =~ /^correct/ &&
Line 1477  sub end_solved { Line 1976  sub end_solved {
 sub start_problemtype {  sub start_problemtype {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result;      my $result;
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||      if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
  $target eq 'tex' || $target eq 'analyze') {   $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
  my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));   my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
  if (!defined($mode)) { $mode='show'; }   if (!defined($mode)) { $mode='show'; }
  my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);   my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
Line 1501  sub start_problemtype { Line 2000  sub start_problemtype {
  $result .=&Apache::edit::checked_arg('When used as type(s):','for',   $result .=&Apache::edit::checked_arg('When used as type(s):','for',
      [ ['exam','Exam/Quiz Problem'],       [ ['exam','Exam/Quiz Problem'],
        ['survey','Survey'],         ['survey','Survey'],
        ['problem','Homework Problem'] ]                                                 ['surveycred','Survey (with credit)'],
                                                  ['anonsurvey','Anonymous Survey'],
                                                  ['anonsurveycred','Anonymous Survey (with credit)'],
          ['problem','Homework Problem'],
                                                  ['practice','Practice Problem'] ]
      ,$token);       ,$token);
  $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();   $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
Line 1520  sub start_startouttext { Line 2023  sub start_startouttext {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my @result=(''.'');      my @result=(''.'');
     if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }      if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
       
       my $nesting = 
    &Apache::lonxml::set_state('outtext',
      &Apache::lonxml::get_state('outtext')+1);
       if ($nesting > 1 && $env{'request.state'} eq 'construct') {
    &Apache::lonxml::error("Nesting of &lt;startouttext /&gt; not allowed, on line ".$token->[5]);
       }
     return (@result);      return (@result);
 }  }
   
Line 1527  sub end_startouttext { Line 2037  sub end_startouttext {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result='';      my $result='';
     my $text='';      my $text='';
   
     if ($target eq 'edit') {      if ($target eq 'edit') {
    my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
  $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);   $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
  $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>   $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
 <td>".&mt('Delete:').                   .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
                  &Apache::edit::deletelist($target,$token)                   .&Apache::edit::deletelist($target,$token)
  ."</td>                   .'</span></td>';
 <td>".          unless ($env{'environment.wysiwygeditor'} eq 'on') {
                  &Apache::edit::insertlist($target,$token).      $result .= '<td align="left">'
    .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
    .'</td>'
    .'<td>'
    .&Apache::edit::insertlist($target,$token)
    .'</td>';
    }
    $result.='<td align="right" valign="top">' .
       &Apache::loncommon::helpLatexCheatsheet().
  &Apache::edit::end_row().   &Apache::edit::end_row().
                  &Apache::edit::start_spanning_row()."\n"                   &Apache::edit::start_spanning_row()."\n".
  . &Apache::loncommon::helpLatexCheatsheet () .  
  &Apache::edit::editfield($token->[1],$text,"",80,8,1);   &Apache::edit::editfield($token->[1],$text,"",80,8,1);
     }      }
     if ($target eq 'modified') {      if ($target eq 'modified') {
Line 1556  sub start_endouttext { Line 2073  sub start_endouttext {
     if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }      if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
     if ($target eq "modified") {      if ($target eq "modified") {
  $result='<endouttext />'.   $result='<endouttext />'.
     &Apache::edit::handle_insertafter('startouttext'); }      &Apache::edit::handle_insertafter('startouttext');
       }
   
       my $nesting = 
    &Apache::lonxml::set_state('outtext',
      &Apache::lonxml::get_state('outtext')-1);
       if ($nesting < 0 && $env{'request.state'} eq 'construct') {
    &Apache::lonxml::error(" Extraneous &lt;endouttext /&gt; not allowed on line ".$token->[5]);
    &Apache::lonxml::set_state('outtext', 0);
       }
     return $result;      return $result;
 }  }
   
Line 1586  sub start_simpleeditbutton { Line 2112  sub start_simpleeditbutton {
     my $result='';      my $result='';
     if (($env{'form.simple_edit_button'} ne 'off') &&      if (($env{'form.simple_edit_button'} ne 'off') &&
  ($target eq 'web') &&   ($target eq 'web') &&
         (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {          (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
         my $url=$env{'request.noversionuri'};          my $url=$env{'request.noversionuri'};
         $url=~s/\?.*$//;          $url=~s/\?.*$//;
  my ($symb) = &Apache::lonxml::whichuser();   my ($symb) = &Apache::lonnet::whichuser();
  $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.  #       Warning makes more sense and is more important on edit screen
                 '<a href="'.$url.'/smpedit?symb='.&Apache::lonnet::escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').  #       $result='<p class="LC_warning">'
 &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';  #              .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
   #              .&Apache::loncommon::help_open_topic('Caching')
   #              .'</p>';
           $result.=&Apache::lonhtmlcommon::start_funclist()
                   .&Apache::lonhtmlcommon::add_item_funclist(
                        '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
                       .&mt('Edit').'</a>')
                   .&Apache::lonhtmlcommon::end_funclist();
   
     }      }
     return $result;      return $result;
 }  }
Line 1601  sub end_simpleeditbutton { Line 2135  sub end_simpleeditbutton {
     return '';      return '';
 }  }
   
   sub practice_problem_header {
       return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
              '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
              '</span>';
   }
   
 1;  1;
 __END__  __END__
   
   =pod
   
   =back
   
   =cut
Removed from v.1.329  
changed lines
  Added in v.1.471

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