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Diff for /loncom/homework/structuretags.pm between versions 1.224 and 1.273

version 1.224, 2003/11/05 21:43:11 version 1.273, 2004/11/30 23:28:57
Line 25 Line 25
 #  #
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
 # 2/19 Guy  ###
 # 6/26/2001 fixed extra web display at end of <web></web> tags  
 # 8/17,8/18,8/20 Gerd Kortemeyer  
   
   
 package Apache::structuretags;   package Apache::structuretags; 
Line 37  use Apache::lonnet; Line 35  use Apache::lonnet;
 use Apache::File();  use Apache::File();
 use Apache::lonmenu;  use Apache::lonmenu;
 use Apache::lonlocal;  use Apache::lonlocal;
   use Apache::lonxml;
   use Time::HiRes qw( gettimeofday tv_interval );
 BEGIN {  BEGIN {
     &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext',      &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
 'simpleeditbutton','definetag'));  
 }  }
   
 sub start_web {  sub start_web {
Line 84  sub page_start { Line 82  sub page_start {
     if (!defined($found{'html'})) {      if (!defined($found{'html'})) {
  $result=&Apache::londefdef::start_html($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);   $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
       &Apache::lonhtmlcommon::htmlareaheaders().
       &Apache::lonhtmlcommon::spellheader().
       &Apache::lonxml::fontsettings();     
     }      }
     my $body_tag_start;      my $body_tag_start;
     if (!defined($found{'body'})) {      if (!defined($found{'body'}) && $ENV{'request.state'} eq 'construct'
  $body_tag_start='<body onLoad="'.&Apache::lonmenu::loadevents().'" '.   && $ENV{'environment.remote'} eq 'off') {
     'onUnload="'.&Apache::lonmenu::unloadevents().'" ';   $body_tag_start=&Apache::loncommon::bodytag();
       } elsif (!defined($found{'body'})) {
    $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
       'onunload="'.&Apache::lonmenu::unloadevents().'" ';
  my $background=&Apache::lonxml::get_param('background',$parstack,   my $background=&Apache::lonxml::get_param('background',$parstack,
   $safeeval);    $safeeval);
  if ($ENV{'browser.imagesuppress'} eq 'on') { $background=''; }   if ($ENV{'browser.imagesuppress'} eq 'on') { $background=''; }
Line 119  sub page_start { Line 123  sub page_start {
  $body_tag_start.=$help;   $body_tag_start.=$help;
     }      }
  }   }
    $body_tag_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" method="POST" action="'.   $form_tag_start='<form name="lonhomework" method="post" action="';
     $ENV{'request.uri'}.'">';   my $uri=$ENV{'request.uri'};
    if ($ENV{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
    $form_tag_start.=$uri.'">';
     }      }
     return ($result,$head_tag_start,$body_tag_start,$form_tag_start);      return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
 }  }
Line 151  sub setup_rndseed { Line 158  sub setup_rndseed {
     my ($safeeval)=@_;      my ($safeeval)=@_;
     my $rndseed;      my $rndseed;
     my ($symb)=&Apache::lonxml::whichuser();      my ($symb)=&Apache::lonxml::whichuser();
     if ($ENV{'request.state'} eq "construct" || $symb eq '') {      if ($ENV{'request.state'} eq "construct" || $symb eq '' ||
             $Apache::lonhomework::history{'resource.CODE'}) {
  $rndseed=$ENV{'form.rndseed'};   $rndseed=$ENV{'form.rndseed'};
  if (!$rndseed) {   if (!$rndseed) {
     $rndseed=$Apache::lonhomework::history{'rndseed'};      $rndseed=$Apache::lonhomework::history{'rndseed'};
     if (!$rndseed) {      if (!$rndseed) {
  $rndseed=time;   $rndseed=time;
  $ENV{'form.rndseed'}=$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.newrandomization'} eq &mt('New Randomization')) {      $ENV{'form.newrandomization'} eq &mt('New Randomization')) {
Line 171  sub setup_rndseed { Line 179  sub setup_rndseed {
  if (defined($rndseed) && $rndseed ne int($rndseed)) {   if (defined($rndseed) && $rndseed ne int($rndseed)) {
    $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));     $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
         }          }
           if ($Apache::lonhomework::history{'resource.CODE'}) {
      $rndseed=&Apache::lonnet::rndseed();
    }
  if ($safeeval) {   if ($safeeval) {
     &Apache::lonxml::debug("Setting rndseed to $rndseed");      &Apache::lonxml::debug("Setting rndseed to $rndseed");
     &Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval);      &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
  }   }
     }      }
     return $rndseed;      return $rndseed;
 }  }
   
   sub remember_problem_state {
       return '
          <input type="hidden" name="problemstate" value="'.$ENV{'form.problemstate'}.'" />
          <input type="hidden" name="problemtype" value="'.$ENV{'form.problemtype'}.'" />
          <input type="hidden" name="problemstatus" value="'.$ENV{'form.problemstatus'}.'" />';
   }
   
 sub problem_edit_header {  sub problem_edit_header {
     return '<input type="hidden" name="submitted" value="edit" />      return '<input type="hidden" name="submitted" value="edit" />'.
    &Apache::structuretags::remember_problem_state().'
        <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />         <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
        <input type="submit" name="problemmode" value="'.&mt('Discard Edits and View').'" />         <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
        <input type="submit" name="problemmode" value="'.&mt('EditXML').'" />         <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
        <input type="submit" name="Undo" value="'.&mt('undo').'" /> <hr />         <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
        <input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />         <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
        <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" /><br /><p>&nbsp;</p><table border="0"><tr><td bgcolor="#DDDDDD">         <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
       ';         &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
          .'</td></tr></table>'.
          '<table border="0"><tr><td bgcolor="#DDDDDD">';
 }  }
   
 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 Edit').'" />
     <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />';      <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
       &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
       "\n</form>\n</body>\n</html>";
   }
   
   sub option {
       my ($value,$name) = @_;
       my $result ="<option value='".$value."' ";
       if ($ENV{'form.'.$name} eq $value) {
    $result.=" selected='on' ";
       }
       $result.='>';
       return $result;
 }  }
   
 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.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
              <input type="submit" name="problemmode" value="'.&mt('Edit').'" />               <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
              <input type="submit" name="problemmode" value="'.&mt('EditXML').'" />               <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
              <input type="submit" name="newrandomization" value="'.&mt('New Randomization').'" />               <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
              <input type="submit" name="resetdata" value="'.&mt('Reset Submissions').'" />               <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
              <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />               <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
               <input type="text" name="rndseed" width="10" value="'.                <input type="text" name="rndseed" size="10" value="'.
        $rndseed.'"         $rndseed.'"
            onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>             onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
              <input type="checkbox" name="showallfoils" ';               <input type="checkbox" name="showallfoils" ';
     if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }      if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }
     $result.= ' />'.&mt('&nbsp;Show&nbsp;All&nbsp;Foils').'      $result.= ' />'.&mt('&nbsp;Show&nbsp;All&nbsp;Foils').
              <hr />';   &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
    '<hr />';
       $result.="
   <nobr>
   Problem Status:
   <select name='problemstate'>
     <option value=''></option>
     ".&option('CLOSED'               ,'problemstate').&mt("Closed")."</option>
     ".&option('CAN_ANSWER'           ,'problemstate').&mt("Answerable")."</option>
     ".&option('CANNOT_ANSWER_tries'  ,'problemstate').&mt("Open with full tries")."</option>
     ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
     ".&option('SHOW_ANSWER'          ,'problemstate').&mt("Show Answer")."</option>
   </select>
   </nobr>
   <nobr>
   Problem Type:
   <select name='problemtype'>
     <option value=''></option>
     ".&option('exam'   ,'problemtype').&mt("Exam Problem")."</option>
     ".&option('problem','problemtype').&mt("Homework problem")."</option>
     ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
   </select>
   </nobr>
   <nobr>
   Feedback Mode:
   <select name='problemstatus'>
     <option value=''></option>
     ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
     ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
   </select>
   </nobr>
   <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
   <hr />";
     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='.      $result.= '<input type="submit" name="problemmode" value='.
Line 276  sub checkout_msg { Line 341  sub checkout_msg {
 <font color="red">  <font color="red">
 <p>$lt{'warning'}</p>  <p>$lt{'warning'}</p>
 </font>  </font>
 <form name="checkout" method="POST" action="$ENV{'request.uri'}">  <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>
 ENDCHECKOUT  ENDCHECKOUT
 }  }
   
   sub firstaccess_msg {
       my ($time,$symb)=@_;
       my ($map)=&Apache::lonnet::decode_symb($symb);
       my $foldertitle=&Apache::lonnet::gettitle($map);
       &Apache::lonxml::debug("map is $map title is $foldertitle");
       return (<<ENDCHECKOUT);
   <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
   <form name="markaccess" method="post" action="$ENV{'request.uri'}">
   <input type="hidden" name="markaccess" value="yes" />
   <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
   </form>
   ENDCHECKOUT
   }
   
 sub init_problem_globals {  sub init_problem_globals {
     my ($type)=@_;      my ($type)=@_;
     #initialize globals      #initialize 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=   $Apache::lonhomework::problemstatus=&get_problem_status('0');
     &Apache::lonnet::EXT('resource.0.problemstatus');   $Apache::lonhomework::ignore_response_errors=0;
     } else {      } elsif ($type eq 'library') {
  $Apache::inputtags::part='';   $Apache::inputtags::part='';
  @Apache::inputtags::partlist=();   @Apache::inputtags::partlist=();
  $Apache::lonhomework::problemstatus='';   $Apache::lonhomework::problemstatus='';
    $Apache::lonhomework::ignore_response_errors=1;
     }      }
     @Apache::inputtags::responselist = ();      @Apache::inputtags::responselist = ();
     @Apache::inputtags::importlist = ();      @Apache::inputtags::importlist = ();
Line 320  sub reset_problem_globals { Line 400  sub reset_problem_globals {
     undef($Apache::lonhomework::name);      undef($Apache::lonhomework::name);
 }  }
   
   sub set_problem_state {
       my ($part)=@_;
       if ($ENV{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
    $Apache::lonhomework::history{"resource.$part.solved"}=
       'correct_by_student';
       }
   }
   
   sub get_problem_status {
       my ($part)=@_;
       my $problem_status;
       if ($ENV{'request.state'} eq 'construct' &&
    defined($ENV{'form.problemstatus'})) {
    $problem_status=$ENV{'form.problemstatus'};
       } else {
    $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
    &Apache::lonxml::debug("problem status for $part is $problem_status");
    &Apache::lonxml::debug("env probstat is ".$ENV{'form.problemstatus'});
       }
       return $problem_status;
   }
   
 sub start_problem {  sub start_problem {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   
Line 337  sub start_problem { Line 439  sub start_problem {
  $Apache::lonhomework::scantronmode=1;   $Apache::lonhomework::scantronmode=1;
     }      }
   
       &initialize_storage();
     if ($target ne 'analyze') {      if ($target ne 'analyze') {
  &initialize_storage();  
  if ($target eq 'web') {   if ($target eq 'web') {
     &Apache::lonhomework::showhash(%Apache::lonhomework::history);      &Apache::lonhomework::showhash(%Apache::lonhomework::history);
  }   }
           if ($ENV{'request.state'} eq 'construct') { &set_problem_state('0'); }
  $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');   $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
  &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");   if (($ENV{'request.state'} eq 'construct') &&
       defined($ENV{'form.problemtype'})) {
       $Apache::lonhomework::type=$ENV{'form.problemtype'};
    }
    &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
     }      }
     if ($Apache::lonhomework::type eq '' ) {      if ($Apache::lonhomework::type eq '' ) {
  my $uri=$ENV{'request.uri'};   my $uri=$ENV{'request.uri'};
Line 358  sub start_problem { Line 465  sub start_problem {
   
     #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=\''.$Apache::lonhomework::type.'\';';
     &Apache::run::run($expression,$safeeval);      &Apache::run::run($expression,$safeeval);
     my $status;      my $status;
     my $accessmsg;      my $accessmsg;
Line 381  sub start_problem { Line 489  sub start_problem {
     }      }
     $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);      $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
  }   }
    if ($ENV{'form.markaccess'}) {
       &Apache::lonnet::set_first_access('map');
    }
  #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::lonxml::whichuser();
Line 391  sub start_problem { Line 501  sub start_problem {
     '<input type="submit" name="resetdata"      '<input type="submit" name="resetdata"
                              value="'.&mt('New Problem Variation').'" />'.                               value="'.&mt('New Problem Variation').'" />'.
     '<input type="hidden" name="username"      '<input type="hidden" name="username"
                              value="'.$ENV{'form.username'}.'" /> <br />';                               value="'.$ENV{'form.username'}.'" />';
       if ($ENV{'user.adv'}) {
    $form_tag_start.=
       ' <input type="checkbox" name="showallfoils" ';
    if (defined($ENV{'form.showallfoils'})) {
       $form_tag_start.='checked="on"';
    }
    $form_tag_start.= ' />'.&mt('&nbsp;Show&nbsp;All&nbsp;Foils');
       }
       $form_tag_start.='<hr />';
  }   }
  ($status,$accessmsg) = &Apache::lonhomework::check_access('0');   ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
  push (@Apache::inputtags::status,$status);   push (@Apache::inputtags::status,$status);
Line 401  sub start_problem { Line 520  sub start_problem {
  &Apache::lonxml::debug("Got $status");   &Apache::lonxml::debug("Got $status");
  if (( $status eq 'CLOSED' ) ||   if (( $status eq 'CLOSED' ) ||
     ( $status eq 'UNCHECKEDOUT') ||      ( $status eq 'UNCHECKEDOUT') ||
       ( $status eq 'NOT_YET_VIEWED') ||
     ( $status eq 'BANNED') ||      ( $status eq 'BANNED') ||
     ( $status eq 'UNAVAILABLE') ||      ( $status eq 'UNAVAILABLE') ||
     ( $status eq 'INVALID_ACCESS')) {      ( $status eq 'INVALID_ACCESS')) {
Line 409  sub start_problem { Line 529  sub start_problem {
  $result.= $head_tag_start.'</head>';   $result.= $head_tag_start.'</head>';
  my $msg=$body_tag_start;   my $msg=$body_tag_start;
  if ($status eq 'UNAVAILABLE') {   if ($status eq 'UNAVAILABLE') {
     $result.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';      $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
  } else {   } elsif ($status ne 'NOT_YET_VIEWED') {
     $result.='<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;      $msg.='The problem '.$accessmsg;
  } elsif ($status eq 'UNCHECKEDOUT') {   } elsif ($status eq 'UNCHECKEDOUT') {
     $msg.=&checkout_msg;      $msg.=&checkout_msg;
    } elsif ($status eq 'NOT_YET_VIEWED') {
       $msg.=&firstaccess_msg($accessmsg,$symb);
  }   }
  $result.=$msg.'<br />';   $result.=$msg.'<br />';
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
Line 429  sub start_problem { Line 551  sub start_problem {
     }      }
  } elsif ($target eq 'web') {   } elsif ($target eq 'web') {
     my $name= &get_resource_name($parstack,$safeeval);      my $name= &get_resource_name($parstack,$safeeval);
     if ($status eq 'CAN_ANSWER') {      $result.="$head_tag_start<title>$name</title></head>
  # create a page header and exit  
  $result.="$head_tag_start<title>$name</title></head>  
               $body_tag_start \n $form_tag_start".                $body_tag_start \n $form_tag_start".
   '<input type="hidden" name="submitted" value="yes" />';        '<input type="hidden" name="submitted" value="yes" />';
  if ($ENV{'request.state'} eq "construct") {      # create a page header and exit
     $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});      if ($ENV{'request.state'} eq "construct") {
  }   $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
  # if we are viewing someone else preserve that info      }
  if (defined $ENV{'form.grade_symb'}) {      # if we are viewing someone else preserve that info
     foreach my $field ('symb','courseid','domain','username') {      if (defined $ENV{'form.grade_symb'}) {
  $result .= '<input type="hidden" name="grade_'.$field.   foreach my $field ('symb','courseid','domain','username') {
     '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";      $result .= '<input type="hidden" name="grade_'.$field.
     }   '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
  }   }
     } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER'  
      || $status eq 'CLOSED' || $status eq 'UNAVALAILABLE' ||  
      $status eq 'INVALID_ACCESS') {  
  $result.=$head_tag_start.  
     "<title>$name</title></head>\n$body_tag_start\n";  
     }      }
  } elsif ($target eq 'tex') {   } elsif ($target eq 'tex') {
     my $startminipage = '';      my $startminipage = '';
Line 461  sub start_problem { Line 576  sub start_problem {
     my @packages = split /,/,$packages;      my @packages = split /,/,$packages;
     my $allow_print_points = 0;      my $allow_print_points = 0;
     foreach my $partial_key (@packages) {      foreach my $partial_key (@packages) {
  if ($partial_key=~m/part_0/) {   if ($partial_key=~m/^part_0$/) {
     $allow_print_points=1;      $allow_print_points=1;
  }   }
     }      }
Line 477  sub start_problem { Line 592  sub start_problem {
     my @due_file_content = <$temp_file>;      my @due_file_content = <$temp_file>;
     my $due_file_content = $due_file_content[$#due_file_content];      my $due_file_content = $due_file_content[$#due_file_content];
     chomp $due_file_content;      chomp $due_file_content;
     my $name_of_resourse= &get_resource_name($parstack,$safeeval);      my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
     if ($due_file_content ne $duedate) {      if ($due_file_content ne $duedate) {
  $temp_file = Apache::File->new('>'.$filename);   $temp_file = Apache::File->new('>'.$filename);
  print $temp_file "$duedate\n";   print $temp_file "$duedate\n";
Line 503  sub start_problem { Line 618  sub start_problem {
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.   $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
     &problem_edit_header();      &problem_edit_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 />";
  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') {
Line 521  sub end_problem { Line 638  sub end_problem {
     my $status=$Apache::inputtags::status['-1'];      my $status=$Apache::inputtags::status['-1'];
     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||      if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
  $target eq 'tex') {   $target eq 'tex') {
  if ( $target eq 'grade' && $Apache::inputtags::part eq '0' &&   if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
      $status eq 'CAN_ANSWER' ) {  
     # if part is zero, no <part>s existed, so we need to the grading      # if part is zero, no <part>s existed, so we need to the grading
     &Apache::inputtags::grade;      if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
    &Apache::inputtags::grade;
       } else {
    # move any submission data to .hidden
    &Apache::inputtags::hidealldata($Apache::inputtags::part);
       }
  } elsif ( ($target eq 'web' || $target eq 'tex') &&   } elsif ( ($target eq 'web' || $target eq 'tex') &&
   $Apache::inputtags::part eq '0' &&    $Apache::inputtags::part eq '0' &&
   $status ne 'UNCHECKEDOUT') {    $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
     # if part is zero, no <part>s existed, so we need show the current      # if part is zero, no <part>s existed, so we need show the current
     # grading status      # grading status
     my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);      my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
Line 537  sub end_problem { Line 658  sub end_problem {
     (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||      (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
     ($target eq 'answer') || ($target eq 'tex')      ($target eq 'answer') || ($target eq 'tex')
    ) {     ) {
     if ($status eq 'CAN_ANSWER') {      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></body>\n";   $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
  }   $result.="</body>\n";
     } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER' ||  
     $status eq 'UNCHECKEDOUT' || $status eq 'INVALID_ACCESS') {  
  if ($target ne 'tex' &&  
     $ENV{'form.answer_output_mode'} ne 'tex') {  
     $result.="</body>\n";  
  }  
     }      }
     if ($target eq 'web') {      if ($target eq 'web') {
  $result.=&Apache::lonxml::xmlend();   $result.=&Apache::lonxml::xmlend();
Line 556  sub end_problem { Line 671  sub end_problem {
  if (not $ENV{'form.problem_split'}=~/yes/) {   if (not $ENV{'form.problem_split'}=~/yes/) {
     $endminipage = '\end{minipage}';      $endminipage = '\end{minipage}';
  }   }
  $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';                  if ($ENV{'form.print_discussions'} eq 'yes') {
  if (not $ENV{'request.symb'} =~ m/\.page_/) {      $result.=&Apache::lonxml::xmlend($target,$parser);
     $result .= $endminipage.'\end{document} ';      $result=~s/<\/html>//;
  } else {   } else {
     $result .= '';      $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
       if (not $ENV{'request.symb'} =~ m/\.page_/) {
    $result .= $endminipage.'\end{document} ';
       } else {
    $result .= '';
       }
  }   }
     }      }
  }   }
Line 579  sub end_problem { Line 699  sub end_problem {
     $result=&Apache::response::mandatory_part_meta;      $result=&Apache::response::mandatory_part_meta;
  }   }
  $result.=&Apache::response::meta_part_order();   $result.=&Apache::response::meta_part_order();
    $result.=&Apache::response::meta_response_order();
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  &Apache::lonxml::debug("in end_problem with $target, edit");   &Apache::lonxml::debug("in end_problem with $target, edit");
  $result = &problem_edit_footer();   $result = &problem_edit_footer();
Line 597  sub end_problem { Line 718  sub end_problem {
 sub start_library {  sub start_library {
     my ($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,$head_tag_start,$body_tag_start,$form_tag_start);
     if ($$tagstack[0] eq 'library') { &init_problem_globals('library') };      if ($$tagstack[0] eq 'library') {
    &init_problem_globals('library');
    $Apache::lonhomework::type='problem';
       }
     if ($target eq 'edit') {      if ($target eq 'edit') {
  ($result,$head_tag_start,$body_tag_start,$form_tag_start)=   ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
     &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);      &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
Line 764  sub start_instructorcomment { Line 888  sub start_instructorcomment {
     if ($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') {
         $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);          $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
  if ( ! $result ) {   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);
     &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");      &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
Line 834  sub end_while { Line 958  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);
     $return = &Apache::run::run($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').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running &lt;while&gt; on line').' '.$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 912  sub shuffle { Line 1036  sub shuffle {
     my $a=shift;      my $a=shift;
     my $i;      my $i;
     if (defined(@$a)) {      if (defined(@$a)) {
  &Apache::response::setrandomnumber();   &Apache::response::pushrandomnumber();
  for($i=@$a;--$i;) {   for($i=@$a;--$i;) {
     my $j=int(&Math::Random::random_uniform() * ($i+1));      my $j=int(&Math::Random::random_uniform() * ($i+1));
     next if $i == $j;      next if $i == $j;
     @$a[$i,$j] = @$a[$j,$i];      @$a[$i,$j] = @$a[$j,$i];
  }   }
    &Apache::response::poprandomnumber();
     }      }
 }  }
   
Line 941  sub start_part { Line 1066  sub start_part {
     @Apache::inputtags::response=();      @Apache::inputtags::response=();
     @Apache::inputtags::previous=();      @Apache::inputtags::previous=();
     @Apache::inputtags::previous_version=();      @Apache::inputtags::previous_version=();
     $Apache::lonhomework::problemstatus=      $Apache::lonhomework::problemstatus=&get_problem_status($id);
  &Apache::lonnet::EXT("resource.$id.problemstatus");  
     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");
       if ($newtype) { $Apache::lonhomework::type=$newtype; }
   
     my $expression='$external::part=\''.$Apache::inputtags::part.'\';';      my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
       $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
     &Apache::run::run($expression,$safeeval);      &Apache::run::run($expression,$safeeval);
   
     if ($target eq 'meta') {      if ($target eq 'meta') {
Line 961  sub start_part { Line 1089  sub start_part {
     my $expression='$external::datestatus="'.$status.'";';      my $expression='$external::datestatus="'.$status.'";';
     $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';      $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
     &Apache::run::run($expression,$safeeval);      &Apache::run::run($expression,$safeeval);
       if ($ENV{'request.state'} eq 'construct') {
    &set_problem_state($Apache::inputtags::part); 
       }
     if (( $status eq 'CLOSED' ) ||      if (( $status eq 'CLOSED' ) ||
  ( $status eq 'UNCHECKEDOUT') ||   ( $status eq 'UNCHECKEDOUT') ||
    ( $status eq 'NOT_YET_VIEWED') ||
  ( $status eq 'BANNED') ||   ( $status eq 'BANNED') ||
  ( $status eq 'UNAVAILABLE') ||   ( $status eq 'UNAVAILABLE') ||
  ( $status eq 'INVALID_ACCESS')) {   ( $status eq 'INVALID_ACCESS')) {
Line 979  sub start_part { Line 1111  sub start_part {
     } else {      } else {
  if ($target eq 'tex') {   if ($target eq 'tex') {
     if (not $ENV{'form.problem_split'}=~/yes/) {      if (not $ENV{'form.problem_split'}=~/yes/) {
  $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';   if ($$tagstack[-2] eq 'td') {
       $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
    } else {
       $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
    }
     }      }
     my $weight = &Apache::lonnet::EXT("resource.$id.weight");      my $weight = &Apache::lonnet::EXT("resource.$id.weight");
     my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'keys');      my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
     my @allkeys = split /,/,$allkeys;      my @allkeys = split /,/,$allkeys;
     my $allow_print_points = 0;      my $allow_print_points = 0;
     foreach my $partial_key (@allkeys) {      foreach my $partial_key (@allkeys) {
  if ($partial_key=~m/\_(\d*)\_weight/) {   if ($partial_key=~m/^part_(.*)$/) {
     if ($1 ne '0') {$allow_print_points=1;}      if ($1 ne '0') {$allow_print_points=1;}
  }   }
     }      }
     if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}      if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
    } elsif ($target eq 'web') {
       $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
  }   }
     }      }
  }   }
Line 1003  sub start_part { Line 1141  sub start_part {
  &Apache::edit::end_row().&Apache::edit::start_spanning_row();   &Apache::edit::end_row().&Apache::edit::start_spanning_row();
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  my $constructtag=&Apache::edit::get_new_args($token,$parstack,   my $constructtag=&Apache::edit::get_new_args($token,$parstack,
      $safeeval,'id').       $safeeval,'id','display');
  &Apache::edit::get_new_args($token,$parstack,  
      $safeeval,'display');  
  if ($constructtag) {   if ($constructtag) {
       #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();      $result.=&Apache::edit::handle_insert();
Line 1023  sub end_part { Line 1160  sub end_part {
     my $result='';      my $result='';
     if ( $target eq 'meta' ) {      if ( $target eq 'meta' ) {
  $result='';   $result='';
     } elsif ( $target eq 'grade' && $status eq 'CAN_ANSWER' && !$hidden) {      } elsif ($target eq 'grade') {
  $result=&Apache::inputtags::grade;   if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
       !$hidden) {
       $result=&Apache::inputtags::grade;
    } else {
       # move any submission data to .hidden
       &Apache::inputtags::hidealldata($Apache::inputtags::part);
    }
     } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {      } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
  my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,   my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
  $target);   $target);
Line 1032  sub end_part { Line 1175  sub end_part {
     $gradestatus='';      $gradestatus='';
  }   }
  $result=$gradestatus;   $result=$gradestatus;
    if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';} 
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result=&Apache::edit::end_table();   $result=&Apache::edit::end_table();
     }      }
Line 1043  sub end_part { Line 1187  sub end_part {
 sub start_preduedate {  sub start_preduedate {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     if ($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') {
    &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
  if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&   if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
     $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' &&      $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
     $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {      &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
     &Apache::lonxml::get_all_text("/preduedate",$parser);      &Apache::lonxml::get_all_text("/preduedate",$parser);
  }   }
     }      }
Line 1058  sub end_preduedate { Line 1203  sub end_preduedate {
   
 sub start_postanswerdate {  sub start_postanswerdate {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {      if ($target eq 'web' || $target eq 'grade') {
  if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {   if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
     &Apache::lonxml::get_all_text("/postanswerdate",$parser);      &Apache::lonxml::get_all_text("/postanswerdate",$parser);
  }   }
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  return '\vskip 0 mm \noindent';   &Apache::lonxml::get_all_text("/postanswerdate",$parser);
     }      }
     return '';      return '';
 }  }
Line 1078  sub start_notsolved { Line 1223  sub start_notsolved {
  $target eq 'tex') {   $target eq 'tex') {
  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 ($gradestatus =~ /^correct/ &&
       &Apache::response::show_answer()) {
     &Apache::lonxml::debug("skipping");      &Apache::lonxml::debug("skipping");
     &Apache::lonxml::get_all_text("/notsolved",$parser);      &Apache::lonxml::get_all_text("/notsolved",$parser);
  }   }
Line 1095  sub start_solved { Line 1241  sub start_solved {
     if ($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') {
  my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};   my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
  if ($gradestatus !~ /^correct/) {   if ($gradestatus !~ /^correct/ ||
       !&Apache::response::show_answer()) {
     &Apache::lonxml::get_all_text("/solved",$parser);      &Apache::lonxml::get_all_text("/solved",$parser);
  }   }
     }      }
Line 1106  sub end_solved { Line 1253  sub end_solved {
     return '';      return '';
 }  }
   
   sub start_problemtype {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
    $target eq 'tex' || $target eq 'analyze') {
    my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
    if (!defined($mode)) { $mode='show'; }
    my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
    my $found=0;
    foreach my $type (split(',',$for)) {
       if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
    }
    if ($mode eq 'show' && !$found) {
       &Apache::lonxml::get_all_text("/problemtype",$parser);
    }
    if ($mode eq 'hide' && $found) {
       &Apache::lonxml::get_all_text("/problemtype",$parser);
    }
       } elsif ($target eq 'edit') {
    $result .=&Apache::edit::tag_start($target,$token);
    $result.=&Apache::edit::select_arg('Mode:','mode',
      [['show','Show'],
       ['hide','Hide']]
      ,$token);
    $result .=&Apache::edit::checked_arg('When used as type(s):','for',
        [ ['exam','Exam/Quiz Problem'],
          ['survey','Survey'],
          ['problem','Homework Problem'] ]
        ,$token);
    $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag=&Apache::edit::get_new_args($token,$parstack,
        $safeeval,'mode','for');
    if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
       }
       return $result;
   }
   
   sub end_problemtype {
       return '';
   }
   
 sub start_startouttext {  sub start_startouttext {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my @result=(''.'');      my @result=(''.'');
Line 1129  sub end_startouttext { Line 1318  sub end_startouttext {
  &Apache::edit::end_row().   &Apache::edit::end_row().
                  &Apache::edit::start_spanning_row()."\n"                   &Apache::edit::start_spanning_row()."\n"
  . &Apache::loncommon::helpLatexCheatsheet () .   . &Apache::loncommon::helpLatexCheatsheet () .
  &Apache::edit::editfield($token->[1],$text,"",80,4);   &Apache::edit::editfield($token->[1],$text,"",80,8,1);
     }      }
     if ($target eq 'modified') {      if ($target eq 'modified') {
  $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);   $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
Line 1174  sub delete_startouttext { Line 1363  sub delete_startouttext {
 sub start_simpleeditbutton {  sub start_simpleeditbutton {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result='';      my $result='';
     if (($target eq 'web') &&      if (($ENV{'form.simple_edit_button'} ne 'off') &&
    ($target eq 'web') &&
         (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {          (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
         my $url=$ENV{'request.noversionuri'};          my $url=$ENV{'request.noversionuri'};
         $url=~s/\?.*$//;          $url=~s/\?.*$//;
  $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.   $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
                 '<a href="'.$url.'/smpedit">'.&mt('Simple Problem Editor').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').                  '<a href="'.$url.'/smpedit">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
 &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';  &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
     }      }
     return $result;      return $result;
Removed from v.1.224  
changed lines
  Added in v.1.273

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