[BACK]Return to structuretags.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / homework

Diff for /loncom/homework/structuretags.pm between versions 1.183 and 1.359

version 1.183, 2003/06/13 14:01:26 version 1.359, 2006/06/26 22:33:22
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 36  use strict; Line 34  use strict;
 use Apache::lonnet;  use Apache::lonnet;
 use Apache::File();  use Apache::File();
 use Apache::lonmenu;  use Apache::lonmenu;
   use Apache::lonlocal;
   use Apache::lonxml;
   use Apache::lonenc();
   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','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'));
 }  }
   
 sub start_web {  sub start_web {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     if (!($target eq 'web' || $target eq 'edit' || $target eq 'modified' ||      my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
   $target eq 'answer' || $target eq 'grade' || $target eq 'meta' )) {      if ($target eq 'web' || $target eq 'webgrade') {
  my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);   return $bodytext;
     }      }
     return '';      return '';
 }  }
Line 55  sub end_web { Line 59  sub end_web {
 }  }
   
 sub start_tex {  sub start_tex {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     if (!($target eq 'tex' || $target eq 'edit' || $target eq 'modified' ||      my $result='';
   $target eq 'answer' || $target eq 'grade' || $target eq 'meta' )) {      my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
  &Apache::lonxml::debug("tex 1");      if ($target eq 'tex') {
  my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);   return $bodytext.' ';
     }      }
     return '';      return $result;;
 }  }
   
 sub end_tex {  sub end_tex {
Line 69  sub end_tex { Line 73  sub end_tex {
 }  }
   
 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 $taglookedfor ('html','body','form') {
     if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}      if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
  }   }
     }      }
   
     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);  
     }      }
     my $body_tag_start;  
     if (!defined($found{'body'})) {      my %body_args;
  $body_tag_start='<body onLoad="'.&Apache::lonmenu::loadevents().'" '.      if (defined($found{'html'})) {
     'onUnload="'.&Apache::lonmenu::unloadevents().'" ';   $body_args{'skip_phases'}{'head'}=1;
       } else {
   
    $extra_head .= &Apache::lonhtmlcommon::spellheader();
   
    my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
    if ($css_href =~ /\S/) {
       &Apache::lonxml::extlink($css_href);
       $extra_head .= 
    '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
    }
    if ($target eq 'edit') {
       $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";
    }
       }
   
       if (defined($found{'body'})) {
    $body_args{'skip_phases'}{'body'}=1;
       } elsif (!defined($found{'body'}) 
        && $env{'request.state'} eq 'construct') {
    if ($target eq 'web' || $target eq 'edit') {
       # no extra args to bodytag
    }
       } elsif (!defined($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) {   if ($background ne '' ) {
     $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=      $add_entries{'background'} = $background;
  $background;  
     $body_tag_start.='background="'.$background.'" ';  
  } else {  
     my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,  
    $safeeval);  
     if ($bgcolor) {  
  $body_tag_start.='bgcolor="'.$bgcolor.'" ';  
     } else {  
  $body_tag_start.='bgcolor="#ffffff"';  
     }  
  }   }
  $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);  
  if ($target eq 'web' && $ENV{'request.state'} ne 'construct') {   my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
     my ($symb,undef,undef,undef,$publicuser)=         $safeeval);
  &Apache::lonxml::whichuser();          if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
     if ($symb eq '' && !$publicuser) {  
  my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");   $body_args{'bgcolor'}        = $bgcolor;
  $help="Browsing resource, all submissions are temporary.<br />";   $body_args{'no_title'}       = 1;
  $body_tag_start.=$help;   $body_args{'force_register'} = 1;
     }   $body_args{'add_entries'}    = \%add_entries;
       }
   
       my $page_start = &Apache::loncommon::start_page($name,$extra_head,
       \%body_args);
   
       if (!defined($found{'body'}) 
    && $env{'request.state'} ne 'construct'
    && ($target eq 'web' || $target eq 'webgrade')) {
   
    my ($symb,undef,undef,undef,$publicuser)= &Apache::lonxml::whichuser();
    if ($symb eq '' && !$publicuser) {
       my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
       $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
       $page_start .= $help;
  }   }
     }      }
   
       if (!defined($found{'body'})) {
    $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" method="POST" action="'.   $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
     $ENV{'request.uri'}.'">';   my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
    $form_tag_start.=$uri.'" ';
    if ($target eq 'edit') {
       $form_tag_start.=&Apache::edit::form_change_detection();
    }
    $form_tag_start.='>';
   
    my $symb=&Apache::lonnet::symbread();
    if ($symb =~ /\S/) {
       $symb=
    &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
       $form_tag_start.=
    '<input type="hidden" name="symb" value="'.$symb.'" />';
    }
     }      }
     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 $name=&Apache::lonnet::gettitle();      if (defined($Apache::lonhomework::name)) {
    return $Apache::lonhomework::name;
       }
       my ($symb)=&Apache::lonxml::whichuser();
       my $name=&Apache::lonnet::gettitle($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+/) {
    $name=$env{'request.uri'};
    $name=~s-.*/([^/]+)$-$1-;
       }
     $Apache::lonhomework::name=$name;      $Apache::lonhomework::name=$name;
     return $name;      return $name;
 }  }
Line 138  sub setup_rndseed { Line 199  sub setup_rndseed {
     my ($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" 
  $rndseed=$ENV{'form.rndseed'};   || $symb eq '' 
    || $Apache::lonhomework::type eq 'practice'
    || $Apache::lonhomework::history{'resource.CODE'}) {
    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
    ['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 ($ENV{'form.resetdata'} eq 'New Problem Variation' ||   if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
     $ENV{'form.newrandomization'} eq 'New Randomization') {      $env{'form.newrandomization'} eq &mt('New Randomization')) {
     $rndseed=time;      srand(time);
     if ($rndseed eq $ENV{'form.rndseed'}) {      $rndseed=int(rand(2100000000));
  srand($rndseed);      $env{'form.rndseed'}=$rndseed;
  $rndseed=int(rand(1000000000));      delete($env{'form.resetdata'});
     }      delete($env{'form.newrandomization'});
     $ENV{'form.rndseed'}=$rndseed;   }
     delete($ENV{'form.resetdata'});   if (defined($rndseed) && $rndseed ne int($rndseed)) {
     delete($ENV{'form.newrandomization'});      $rndseed=join(':',&Apache::lonnet::digest($rndseed));
           }
           if ($Apache::lonhomework::history{'resource.CODE'}) {
      $rndseed=&Apache::lonnet::rndseed();
    }
    if ($safeeval) {
       &Apache::lonxml::debug("Setting rndseed to $rndseed");
       &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
  }   }
  &Apache::lonxml::debug("Setting rndseed to $rndseed");  
  &Apache::run::run('$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" />'.
        <input type="hidden" name="problemmode" value="Edit" />   &Apache::structuretags::remember_problem_state().'
        <input type="submit" name="problemmode" value="Discard Edits and View" />         <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
        <input type="submit" name="problemmode" value="EditXML" />         <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
        <input type="submit" name="Undo" value="undo" /> <hr />         <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
        <input type="submit" name="submit" value="Submit Changes and Edit" />         <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
        <input type="submit" name="submit" value="Submit Changes and View" /><br /><p>&nbsp;</p><table border="0"><tr><td bgcolor="#DDDDDD">         <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
       ';         <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" width="100%"><tr><td bgcolor="#DDDDDD">';
 }  }
   
 sub problem_edit_footer {  sub problem_edit_footer {
     return '</td></tr></table><br /><input type="submit" name="submit" value="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="Submit Changes and View" />';      <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
       &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
       "\n</form>\n".&Apache::loncommon::end_page();
   }
   
   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="View" />      my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
              <input type="submit" name="problemmode" value="Edit" />      if (!$Apache::lonhomework::parsing_a_task) {
              <input type="submit" name="problemmode" value="EditXML" />   $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
              <input type="submit" name="newrandomization" value="New Randomization" />      }
              <input type="submit" name="resetdata" value="Reset Submissions" />      $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
              <nobr><input type="submit" name="changerandseed" value="Change Random Seed To:" />               <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
               <input type="text" name="rndseed" width="10" value="'.               <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.'"         $rndseed.'"
            onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>             onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
              <input type="checkbox" name="showallfoils" ';               <label><input type="checkbox" name="showallfoils" ';
     if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }      my $show_all_foils_text = 
     $result.= ' />&nbsp;Show&nbsp;All&nbsp;Foils   ($Apache::lonhomework::parsing_a_task) ?
              <hr />';   &mt('&nbsp;Show&nbsp;All&nbsp;Instances')
     my $numtoanalyze=$ENV{'form.numtoanalyze'};   : &mt('&nbsp;Show&nbsp;All&nbsp;Foils');
     if (!$numtoanalyze) { $numtoanalyze=20; }  
     $result.= '<input type="submit" name="problemmode" value="Calculate answers" /> for      if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
       $result.= ' />'.$show_all_foils_text.
    &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
    '</label><hr />';
       if (!$Apache::lonhomework::parsing_a_task) {
    $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'};
    if (!$numtoanalyze) { $numtoanalyze=20; }
    $result.= '<input type="submit" name="problemmode" value='.
       &mt('"Calculate answers').'" /> for
              <input type="text" name="numtoanalyze" value="'.               <input type="text" name="numtoanalyze" value="'.
  $numtoanalyze.'" size="5" /> versions of this problem.'.       $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
      &Apache::loncommon::help_open_topic("Analyze_Problem",       '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
      '',undef,undef,300).       '',undef,undef,300).
      '<hr />';       '<hr />';
       }
     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,$name) = 
    &Apache::lonxml::whichuser($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') ||
       $env{'form.newrandomization'} eq &mt('New Randomization')) {
       &Apache::lonnet::tmpreset($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=(); }
Line 228  sub initialize_storage { Line 383  sub initialize_storage {
 # Stores away the result has to a student's environment  # Stores away the result has to a student's environment
 # checks form.grade_ for specific values, other wises stores  # checks form.grade_ for specific values, other wises stores
 # to the running users environment  # to the running users environment
   # Will increment totals for attempts, students, and corrects
   # if running user has student role.  
 sub finalize_storage {  sub finalize_storage {
       my ($given_symb) = @_;
     my $result;      my $result;
     my ($temp) = keys %Apache::lonhomework::results;      if (%Apache::lonhomework::results) {
     if ( $temp ne '' ) {   my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
  my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();   delete(@Apache::lonhomework::results{@remove});
  if ($ENV{'request.state'} eq 'construct' || $symb eq '') {   my ($symb,$courseid,$domain,$name) = 
     $Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'};      &Apache::lonxml::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'};
     $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);
               }
  }   }
       } else {
    &Apache::lonxml::debug('Nothing to store');
     }      }
     return $result;      return $result;
 }  }
   use Data::Dumper;
   
   # -------------------------------------------------------------store_aggregates
   # 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.
   sub store_aggregates {
       my ($symb,$courseid) = @_;
       my %aggregate;
       my @parts;
       my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
       my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
       foreach my $key (keys(%Apache::lonhomework::results)) {
           if ($key =~ /resource\.([^\.]+)\.tries/) {
               push(@parts, $1);
           }
       }
       foreach my $part (@parts) {
           if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
       eq 'APPROX_ANS' ||
       $Apache::lonhomework::results{'resource.'.$part.'.award'}
       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 (keys (%aggregate) > 0) {
    &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
                               $cdomain,$cname);
       }
   }
   
 sub checkout_msg {  sub checkout_msg {
       my %lt=&Apache::lonlocal::texthash( 
    'resource'=>'The resource needs to be checked out',
    'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
                   '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?');
       my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
     return (<<ENDCHECKOUT);      return (<<ENDCHECKOUT);
 <h2>The resource needs to be checked out</h2>  <h2>$lt{'resource'}</h2>
 As a resource gets checked out, a unique timestamped ID is given to it, and a      <p>$lt{'id_expln'}</p>
 permanent record is left in the system.<p />  <font color="red">
 <font color=red>  <p>$lt{'warning'}</p>
 Checking out resources is subject to course policies, and may exclude future  
 credit even if done erroneously.<p />  
 </font>  </font>
 <form name="checkout" method="POST" action="$ENV{'request.uri'}">  <form name="checkout" method="POST" action="$uri">
 <input type="hidden" name="doescheckout" value="yes" />  <input type="hidden" name="doescheckout" value="yes" />
 <input type="button" name="checkoutbutton" value="Check out Exam for Viewing" onClick="javascript:if (confirm('Check out Exam?')) { document.checkout.submit(); }" />  <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
 </form>  </form>
 ENDCHECKOUT  ENDCHECKOUT
 }  }
   
 sub start_problem {  sub firstaccess_msg {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      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");
       my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
       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="$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
   }
   
     $Apache::lonhomework::parsing_a_problem=1;  sub init_problem_globals {
     if ( $Apache::inputtags::part ne '' ) {      my ($type)=@_;
  &Apache::lonxml::error('Only one problem allowed in a .problem file');      #initialize globals
  my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);      #   For problems, we start out in part 0 (outside a <part> tag).
  return '';      #   and part 0 is used to describe the main body of the <problem>
       #
       if ($type eq 'problem') {
    $Apache::inputtags::part='0';
    @Apache::inputtags::partlist=('0');
    $Apache::lonhomework::problemstatus=&get_problem_status('0');
    $Apache::lonhomework::ignore_response_errors=0;
   
       } elsif ($type eq 'library') {
    $Apache::inputtags::part='';
    @Apache::inputtags::partlist=();
    $Apache::lonhomework::problemstatus='';
    $Apache::lonhomework::ignore_response_errors=1;
   
       } elsif ($type eq 'Task') {
    $Apache::inputtags::part='0';
    @Apache::inputtags::partlist=('0');
    $Apache::lonhomework::problemstatus='';
    $Apache::lonhomework::ignore_response_errors=1;
     }      }
 #initialize globals  
     $Apache::inputtags::part='0';  
     @Apache::inputtags::partlist=('0');  
     @Apache::inputtags::responselist = ();      @Apache::inputtags::responselist = ();
     @Apache::inputtags::importlist = ();      @Apache::inputtags::importlist = ();
     @Apache::inputtags::previous=();      @Apache::inputtags::previous=();
Line 284  sub start_problem { Line 525  sub start_problem {
     @Apache::structuretags::whilebody=();      @Apache::structuretags::whilebody=();
     @Apache::structuretags::whileline=();      @Apache::structuretags::whileline=();
     $Apache::lonhomework::scantronmode=0;      $Apache::lonhomework::scantronmode=0;
     $Apache::lonhomework::problemstatus=      undef($Apache::lonhomework::name);
  &Apache::lonnet::EXT('resource.0.problemstatus');      undef($Apache::lonhomework::default_type);
       undef($Apache::lonhomework::type);
       undef($Apache::lonhomework::problemstatus);
   }
   
     if (defined($ENV{'scantron.maxquest'})) {  sub reset_problem_globals {
       my ($type)=@_;
       undef(%Apache::lonhomework::history);
       undef(%Apache::lonhomework::results);
       undef($Apache::inputtags::part);
   #don't undef this, lonhomework.pm takes care of this, we use this to 
   #detect if we try to do 2 problems in one file
   #   undef($Apache::lonhomework::parsing_a_problem);
       undef($Apache::lonhomework::name);
       undef($Apache::lonhomework::default_type);
       undef($Apache::lonhomework::type);
       undef($Apache::lonhomework::scantronmode);
       undef($Apache::lonhomework::problemstatus);
       undef($Apache::lonhomework::ignore_response_errors);
   }
   
   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 {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   
       # We'll use the redirection to fix up printing of duedates.
       if (!$Apache::lonxml::metamode) {
    &Apache::lonxml::startredirection();
       }
   
       # Problems don't nest and we don't allow more than one <problem> in
       # a .problem file.
       #
       if ( $Apache::inputtags::part ne '' ||
    $Apache::lonhomework::parsing_a_problem) {
    &Apache::lonxml::error('Only one &lt;problem&gt; allowed in a .problem file');
    #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
    return '';
       }
   
       $Apache::lonhomework::parsing_a_problem=1;
       &init_problem_globals('problem');
   
       if (defined($env{'scantron.maxquest'})) {
  $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');   $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
    if (($env{'request.state'} eq 'construct') &&
       defined($env{'form.problemtype'})) {
       $Apache::lonhomework::type=$env{'form.problemtype'};
    }
  &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");   &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
     }      }
     if ($Apache::lonhomework::type eq '' ) {      if ($Apache::lonhomework::type eq '' ) {
  my $uri=$ENV{'request.uri'};   my $uri=$env{'request.uri'};
  if ($uri=~/\.(\w+)$/) {   if ($uri=~/\.(\w+)$/) {
     $Apache::lonhomework::type=$1;      $Apache::lonhomework::type=$1;
     &Apache::lonxml::debug("Using type of $1");      &Apache::lonxml::debug("Using type of $1");
Line 309  sub start_problem { Line 617  sub start_problem {
     &Apache::lonxml::debug("Using default type, problem, :$uri:");      &Apache::lonxml::debug("Using default type, problem, :$uri:");
  }   }
     }      }
       $Apache::lonhomework::default_type = $Apache::lonhomework::type;
   
     #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;
   
     #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' || $target eq 'tex'
     if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}   || $target eq 'edit') {
    ($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 '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' || $target eq 'answer' ||
Line 328  sub start_problem { Line 644  sub start_problem {
  if ($Apache::lonhomework::type eq 'exam') {   if ($Apache::lonhomework::type eq 'exam') {
     my $token=      my $token=
  $Apache::lonhomework::history{"resource.0.outtoken"};   $Apache::lonhomework::history{"resource.0.outtoken"};
     if (($ENV{'form.doescheckout'}) && (!$token)) {      if (($env{'form.doescheckout'}) && (!$token)) {
  $token=&Apache::lonxml::maketoken();   $token=&Apache::lonxml::maketoken();
  $Apache::lonhomework::history{"resource.0.outtoken"}=   $Apache::lonhomework::history{"resource.0.outtoken"}=
     $token;      $token;
     }      }
     $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);      $result.=&Apache::lonxml::printtokenheader($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();
  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.'" />'.   $rndseed.'" />'.
     '<input type="submit" name="resetdata"      '<input type="submit" name="resetdata"
                              value="New Problem Variation" />'.                               value="'.&mt('New Problem Variation').'" />';
       if (exists($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{'request.role.adv'}) {
    $form_tag_start.=
       ' <label><input type="checkbox" name="showallfoils" ';
    if (defined($env{'form.showallfoils'})) {
       $form_tag_start.='checked="on"';
    }
    $form_tag_start.= ' />'.&mt('&nbsp;Show&nbsp;All&nbsp;Foils').
       '</label>';
       }
       $form_tag_start.='<hr />';
  }   }
  ($status,$accessmsg) = &Apache::lonhomework::check_access('0');  
    ($status,$accessmsg,my $slot_name,my $slot) = 
       &Apache::lonhomework::check_slot_access('0','problem');
  push (@Apache::inputtags::status,$status);   push (@Apache::inputtags::status,$status);
   
  my $expression='$external::datestatus="'.$status.'";';   my $expression='$external::datestatus="'.$status.'";';
  $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';   $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
  &Apache::run::run($expression,$safeeval);   &Apache::run::run($expression,$safeeval);
  &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') ||
     my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);      ( $status eq 'NOT_IN_A_SLOT') ||
       ( $status eq 'INVALID_ACCESS')) {
       my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
          $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') {
     $result.='<h1>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>Not open to be viewed</h1>';      $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
  }   }
  if ($status eq 'CLOSED') {   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,$symb);
    } elsif ($status eq 'NOT_IN_A_SLOT') {
       $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.='\begin{document}\noindent \vskip 1 mm '.
       $startminipage.'\vskip 0 mm';
  if ($status eq 'UNAVAILABLE') {   if ($status eq 'UNAVAILABLE') {
     $result.='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 {
     $result.="Problem is not open to be viewed. It $accessmsg \\vskip 0 mm ";      $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
  }  
     }  
  } elsif ($target eq 'web') {  
     my $name= &get_resource_name($parstack,$safeeval);  
     if ($status eq 'CAN_ANSWER') {  
  # create a page header and exit  
  $result.="$head_tag_start<title>$name</title></head>  
               $body_tag_start \n $form_tag_start".  
   '<input type="hidden" name="submitted" value="yes" />';  
  if ($ENV{'request.state'} eq "construct") {  
     $result.= &problem_web_to_edit_header($rndseed);  
  }   }
  # if we are viewing someone else preserve that info  
  if (defined $ENV{'form.grade_symb'}) {  
     foreach my $field ('symb','courseid','domain','username') {  
  $result .= '<input type="hidden" name="grade_'.$field.  
     '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";  
     }  
  }  
     } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER'  
      || $status eq 'CLOSED' || $status eq 'UNAVALAILABLE') {  
  $result.=$head_tag_start.  
     "<title>$name</title></head>\n$body_tag_start\n";  
     }      }
  } elsif ($target eq 'tex') {   } elsif ($status eq 'NEEDS_CHECKIN') {
     my $startminipage = '';      my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
     if ($ENV{'form.problem_split'} ne 'yes') {         $style);
  $startminipage = '\begin{minipage}{\textwidth}';      if ($target eq 'web') {
     }   $result .= &Apache::bridgetask::proctor_validation_screen();
     my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);      } elsif ($target eq 'grade') {
     if ($name eq '') {   &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
  $name=&Apache::lonnet::EXT('resource.title');   'problem');
  if ($name eq 'con_lost') { $name = ''; }  
     }  
     $Apache::lonhomework::name=$name;  
     my $id = $Apache::inputtags::part;  
     my $weight = &Apache::lonnet::EXT("resource.$id.weight");  
     my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'keys');  
     my @allkeys = split /,/,$allkeys;  
     my $allow_print_points = 0;  
     foreach my $partial_key (@allkeys) {  
  if ($partial_key=~m/weight/) {  
     $allow_print_points++;  
  }  
     }      }
     my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");    } elsif ($target eq 'web') {
     $duedate = POSIX::strftime("%c",localtime($duedate));      $result.="\n $form_tag_start".
     my $temp_file;        '<input type="hidden" name="submitted" value="yes" />';
     my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";      # create a page header and exit
     if (-e $filename) {      if ($env{'request.state'} eq "construct") {
  $temp_file = Apache::File->new($filename);   $result.= &problem_web_to_edit_header($env{'form.rndseed'});
     } else {  
  $temp_file = Apache::File->new('>>'.$filename);  
     }      }
     my @due_file_content = <$temp_file>;      # if we are viewing someone else preserve that info
     my $due_file_content = $due_file_content[$#due_file_content];      if (defined $env{'form.grade_symb'}) {
     chomp $due_file_content;   foreach my $field ('symb','courseid','domain','username') {
     my $name_of_resourse= &get_resource_name($parstack,$safeeval);      $result .= '<input type="hidden" name="grade_'.$field.
     if ($due_file_content ne $duedate) {   '" value="'.$env{"form.grade_$field"}.'" />'."\n";
  $temp_file = Apache::File->new('>'.$filename);  
  print $temp_file "$duedate\n";  
  if (not $ENV{'request.symb'} =~ m/\.page_/) {  
     if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {  
  $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent '.$startminipage;  
     } else {  
  $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm \noindent'.$startminipage;  
  if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}  
     }  
  } else {  
     $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';  
  }  
     } else {  
  if (not $ENV{'request.symb'} =~ m/\.page_/) {  
     $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm\noindent'.$startminipage;  
     if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}  
  } else {  
     $result .= '\vskip 1mm \\\\\\\\';  
  }   }
     }      }
    } elsif ($target eq 'tex') {
       $result .= 'INSERTTEXFRONTMATTERHERE';
   
  }   }
     } 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=
       &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 475  sub start_problem { Line 771  sub start_problem {
   
 sub end_problem {  sub end_problem {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result='';      my $result;
   
       if (!$Apache::lonxml::metamode) {
    $result = &Apache::lonxml::endredirection(); #started in &start_problem
    $Apache::lonxml::post_evaluate=0;
       }
   
       if ($target eq 'tex') {
   
    # Figure out the front matter and replace the
    # INSERTTEXFRONTMATTERHERE in result with it.  note that we do
    # this in end_problem because whether or not we display due
    # dates depends on whether due dates have already been
    # displayed in the problem parts.
   
    my $frontmatter   = '';
    my $startminipage = '';
    if (not $env{'form.problem_split'}=~/yes/) {
       $startminipage = '\begin{minipage}{\textwidth}';
    }
    my $id = $Apache::inputtags::part;
    my $weight = &Apache::lonnet::EXT("resource.$id.weight");
    my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
    my @packages = split /,/,$packages;
    my $allow_print_points = 0;
    foreach my $partial_key (@packages) {
       if ($partial_key=~m/^part_0$/) {
    $allow_print_points=1;
       }
    }
    my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
    if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
    if (lc($env{'course.'.$env{'request.course.id'}.
    '.disableexampointprint'}) eq 'yes') {
       $allow_print_points=0;
    }
    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 $toc_line='\vskip 1 mm\noindent '.$startminipage.
       '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
   
    #  Figure out what the due date is and if we need to print
    #  it in the problem header.  We have been logging the
    #  last due date written to file. 
   
    my $duetime = &Apache::lonnet::EXT("resource.$id.duedate"); 
    my $duedate = POSIX::strftime("%c",localtime($duetime));
    my $temp_file;
    my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
   
    # Figure out what the last printed due date is or set it
    # to the epoch if no duedates have been printed.
   
    my $due_file_content = 0;      #   If the file does not yet exist, time is the epoch.
    if (-e $filename) {
       $temp_file = Apache::File->new($filename);
       my @due_file      = <$temp_file>;
       $due_file_content = $due_file[$#due_file];
       chomp $due_file_content;
    } 
   
    # We display the due date iff it is not the same as the last
    # duedate in problem header ($due_file_content), and
    # none of our parts displayed a duedate.
    #
    my $parts_with_displayduedate;
    if (defined $Apache::outputtags::showonce{'displayduedate'}) {
       $parts_with_displayduedate = 
    scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
    } else {
       $parts_with_displayduedate = 0;
    }
    if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
       $temp_file = Apache::File->new('>'.$filename);
       print $temp_file "$duetime\n";
       if (not $env{'request.symb'} =~ m/\.page_/) {
    if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
       $frontmatter .= $begin_doc.
    '\textit{Due date: '.$duedate.'} '.$toc_line;
    } else {
       $frontmatter.= $begin_doc.$toc_line;
       if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
    }
       } else {
    $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
       }
    } else {
       if (not $env{'request.symb'} =~ m/\.page_/) {
    $frontmatter .= $begin_doc.$toc_line;
    if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
       } else {
    $frontmatter .= '\vskip 1mm \\\\\\\\';
       }
    }
    $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
       }
   
     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' ||$Apache::lonhomework::scantronmode) {
    &Apache::inputtags::grade;
       } elsif ($status eq 'NEEDS_CHECKIN') {
    # no need to grade, and don't want to hide data
       } 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);
     $result.= $gradestatus;      $result.= $gradestatus;
  }   }
  if (   if (
     (($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";   $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
  }  
     } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER' ||  
      $status eq 'UNCHECKEDOUT' ) {  
  if ($target ne 'tex') {  
     $result.="</body>\n";  
  }  
     }      }
     if ($target eq 'web') {      if ($target eq 'web') {
  $result.=&Apache::lonxml::xmlend();   $result.= &Apache::loncommon::end_page({'discussion' => 1});
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  my $endminipage = '';   my $endminipage = '';
  if ($ENV{'form.problem_split'} ne '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} ';  
  } 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 {
    $result .= '';
       }
  }   }
     }      }
  }   }
Line 525  sub end_problem { Line 921  sub end_problem {
     &Apache::lonhomework::showhash(%Apache::lonhomework::results);      &Apache::lonhomework::showhash(%Apache::lonhomework::results);
     &finalize_storage();      &finalize_storage();
  }   }
  if ($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.='</html>'; # normally we get it from xmlend, but in CSTR      $result.=&Apache::loncommon::end_page({'discussion' => 1});
                           # normally we get it from above, but in CSTR
                         # we always show answer mode too.                          # we always show answer mode too.
  }   }
     } elsif ($target eq 'meta') {      } elsif ($target eq 'meta') {
Line 535  sub end_problem { Line 932  sub end_problem {
     @Apache::inputtags::response=();      @Apache::inputtags::response=();
     $result=&Apache::response::mandatory_part_meta;      $result=&Apache::response::mandatory_part_meta;
  }   }
    $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();   $result .= &problem_edit_footer();
       } elsif ($target eq 'modified') {
    $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' && $target eq 'web') {
  &Apache::inputtags::check_for_duplicate_ids();   &Apache::inputtags::check_for_duplicate_ids();
     }      }
     undef(%Apache::lonhomework::history);  
     undef(%Apache::lonhomework::results);      &reset_problem_globals('problem');
     undef($Apache::inputtags::part);  
     undef($Apache::lonhomework::parsing_a_problem);  
   
     return $result;      return $result;
 }  }
Line 554  sub end_problem { Line 954  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 ($$tagstack[0] eq 'library') {
    &init_problem_globals('library');
    $Apache::lonhomework::type='problem';
       }
     if ($target eq 'edit') {      if ($target eq 'edit') {
  ($result,$head_tag_start,$body_tag_start,$form_tag_start)=   ($result,$form_tag_start)=
     &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);      &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
  $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.   'Edit');
     &problem_edit_header();   $result.=$form_tag_start.&problem_edit_header();
  my $temp=&Apache::edit::insertlist($target,$token);   my $temp=&Apache::edit::insertlist($target,$token);
  $result.=$temp;   $result.=$temp;
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  $result=$token->[4];   $result=$token->[4];
  $result.=&Apache::edit::handle_insert();   $result.=&Apache::edit::handle_insert();
     } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&      } elsif (($target eq 'web' || $target eq 'webgrade')
      $ENV{'request.state'} eq "construct" ) {       && $$tagstack[0] eq 'library' 
  ($result,$head_tag_start,$body_tag_start,$form_tag_start)=       && $env{'request.state'} eq "construct" ) {
     &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);  
  my $name=&get_resource_name($parstack,$safeeval);   my $name=&get_resource_name($parstack,$safeeval);
    ($result,$form_tag_start)=
       &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
    $name);
  my $rndseed=&setup_rndseed($safeeval);   my $rndseed=&setup_rndseed($safeeval);
  $result.="$head_tag_start<title>$name</title></head>   $result.=" \n $form_tag_start".
               $body_tag_start \n $form_tag_start".  
   '<input type="hidden" name="submitted" value="yes" />';    '<input type="hidden" name="submitted" value="yes" />';
  $result.=&problem_web_to_edit_header($rndseed);   $result.=&problem_web_to_edit_header($rndseed);
     }      }
Line 586  sub end_library { Line 990  sub end_library {
     if ($target eq 'edit') {      if ($target eq 'edit') {
  $result=&problem_edit_footer();   $result=&problem_edit_footer();
     } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&      } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
      $ENV{'request.state'} eq "construct") {       $env{'request.state'} eq "construct") {
  $result.='</form></body>'.&Apache::lonxml::xmlend();   $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
       }
       if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
       return $result;
   }
   
   sub start_definetag {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   
       my $result;
   
       my $name = $token->[2]->{'name'};
       my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
       if ($name=~/^\//) {
    $result=
    '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
       } else {
    $result=
    '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
     }      }
       $skip=~s/\</\&lt\;/gs;
       $skip=~s/\>/\&gt\;/gs;
       $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
     return $result;      return $result;
 }  }
   
   sub end_definetag {
       return '';
   }
   
 sub start_block {  sub start_block {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      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 = $token->[2]->{'condition'};
  if ($code) {   if (defined($code)) {
     if (!$Apache::lonxml::default_homework_loaded) {      if (!$Apache::lonxml::default_homework_loaded) {
  &Apache::lonxml::default_homework_load($safeeval);   &Apache::lonxml::default_homework_load($safeeval);
     }      }
Line 610  sub start_block { Line 1039  sub start_block {
     $result='1';      $result='1';
  }   }
  if ( ! $result ) {   if ( ! $result ) {
     my $skip=&Apache::lonxml::get_all_text("/block",$parser);      my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
     &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");      &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
  }   }
  $result='';   $result='';
Line 637  sub end_block { Line 1066  sub end_block {
 }  }
   
 sub start_languageblock {  sub start_languageblock {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      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 $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 %languages=&Apache::loncommon::display_languages();
Line 659  sub start_languageblock { Line 1088  sub start_languageblock {
             }              }
  }   }
  if ( ! $result ) {   if ( ! $result ) {
     my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser);      my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
      $style);
     &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");      &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
  }   }
  $result='';   $result='';
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result .=&Apache::edit::tag_start($target,$token);   $result .=&Apache::edit::tag_start($target,$token);
  $result .=&Apache::edit::text_arg('Include Language:','include',   $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
   $token,40);    $token,40);
  $result .=&Apache::edit::text_arg('Exclude Language:','exclude',   $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
   $token,40);    $token,40);
  $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 689  sub end_languageblock { Line 1119  sub end_languageblock {
 }  }
   
 sub start_instructorcomment {  sub start_instructorcomment {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      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|au|ca|li)/);
  if ( ! $result ) {   if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
     my $skip=&Apache::lonxml::get_all_text("/instructorcomment",$parser);      my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
      $parser,$style);
     &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");      &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
  }   }
  $result='';   $result='';
Line 718  sub end_instructorcomment { Line 1149  sub end_instructorcomment {
 }  }
   
 sub start_while {  sub start_while {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      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, $code);
Line 730  sub start_while { Line 1161  sub start_while {
     &Apache::lonxml::default_homework_load($safeeval);      &Apache::lonxml::default_homework_load($safeeval);
  }   }
  my $result = &Apache::run::run($code,$safeeval);   my $result = &Apache::run::run($code,$safeeval);
  my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);   my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
  push( @Apache::structuretags::whilebody, $bodytext);   push( @Apache::structuretags::whilebody, $bodytext);
  push( @Apache::structuretags::whileline, $token->[5]);   push( @Apache::structuretags::whileline, $token->[5]);
  &Apache::lonxml::debug("s code $code got -$result-");   &Apache::lonxml::debug("s code $code got -$result-");
Line 739  sub start_while { Line 1170  sub start_while {
  }   }
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result .=&Apache::edit::tag_start($target,$token);   $result .=&Apache::edit::tag_start($target,$token);
  $result .=&Apache::edit::text_arg('Test Condition:','condition',   $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
   $token,40);    $token,40);
  $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 ($target eq 'modified') {
Line 754  sub end_while { Line 1185  sub end_while {
     my ($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 $line = pop(@Apache::structuretags::whileline);
Line 765  sub end_while { Line 1196  sub end_while {
  while ($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 ($error) {
     &Apache::lonxml::error('<pre>Code ran too long. It ran for more than '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' 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,$token,'');
Line 786  sub end_while { Line 1217  sub end_while {
 #  ...  #  ...
 # </randomlist>  # </randomlist>
 sub start_randomlist {  sub start_randomlist {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($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);   my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
  my $b_parser= HTML::TokeParser->new(\$body);   my $b_parser= HTML::LCParser->new(\$body);
    $b_parser->xml_mode(1);
    $b_parser->marked_sections(1);
  my $b_tok;   my $b_tok;
  my @randomlist;   my @randomlist;
  my $list_item;   my $list_item;
Line 815  sub start_randomlist { Line 1248  sub start_randomlist {
     #  print "<b>END-TAG $b_tok->[1]</b><br />";      #  print "<b>END-TAG $b_tok->[1]</b><br />";
     # }      # }
  }   }
  my @idx_arr = (0 .. $#randomlist);   if (@randomlist) {
  &Apache::structuretags::shuffle(\@idx_arr);      my @idx_arr = (0 .. $#randomlist);
  my $bodytext = '';      &Apache::structuretags::shuffle(\@idx_arr);
  my $show=$#randomlist;      my $bodytext = '';
  my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);      my $show=$#randomlist;
  $showarg--;      my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
  if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }      $showarg--;
  for(0 .. $show) {      if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
     $bodytext .= "$randomlist[ $idx_arr[$_] ]";      for(0 .. $show) {
    $bodytext .= "$randomlist[ $idx_arr[$_] ]";
       }
       &Apache::lonxml::newparser($parser,\$bodytext);
  }   }
  &Apache::lonxml::newparser($parser,\$bodytext);  
     } elsif ($target eq 'edit' ) {      } elsif ($target eq 'edit' ) {
  $result .=&Apache::edit::tag_start($target,$token);   $result .=&Apache::edit::tag_start($target,$token);
  $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',   $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
Line 842  sub start_randomlist { Line 1277  sub start_randomlist {
 sub shuffle {  sub shuffle {
     my $a=shift;      my $a=shift;
     my $i;      my $i;
     if (defined(@$a)) {      if (ref($a) eq 'ARRAY' && @$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 862  sub end_randomlist { Line 1298  sub end_randomlist {
     return $result;      return $result;
 }  }
   
   sub ordered_show_check {
       my $last_part=$Apache::inputtags::partlist[-2];
       my $in_order=
    &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
       my $in_order_show=1;
       if ($last_part ne '0' && lc($in_order) eq 'yes') {
    $in_order_show=&Apache::response::check_status($last_part);
       }
       return $in_order_show;
   }
   
 sub start_part {  sub start_part {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       if (!$Apache::lonxml::metamode) {
    &Apache::lonxml::startredirection(); # we'll use redirection to fix up 
                                        # duedates.
       }
     my $result='';      my $result='';
     my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);      my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
     if ($id eq '') { $id = $Apache::lonxml::curdepth; }      if ($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=      $Apache::lonhomework::problemstatus=&get_problem_status($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 $in_order_show=&ordered_show_check();
       my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
       $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
       &Apache::run::run($expression,$safeeval);
   
     if ($target eq 'meta') {      if ($target eq 'meta') {
  return &Apache::response::mandatory_part_meta;   my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
    return &Apache::response::mandatory_part_meta.
          &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
     } elsif ($target eq 'web' || $target eq 'grade' ||      } elsif ($target eq 'web' || $target eq 'grade' ||
      $target eq 'answer' || $target eq 'tex') {       $target eq 'answer' || $target eq 'tex') {
  if ($hidden) {   if ($hidden || !$in_order_show) {
     my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);      my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
  } else {   } else {
     my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);      my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
     push (@Apache::inputtags::status,$status);      push (@Apache::inputtags::status,$status);
     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 ( $status eq 'CLOSED' ) {      if ($env{'request.state'} eq 'construct') {
  my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);   &set_problem_state($Apache::inputtags::part); 
       }
       if (( $status eq 'CLOSED' ) ||
    ( $status eq 'UNCHECKEDOUT') ||
    ( $status eq 'NOT_YET_VIEWED') ||
    ( $status eq 'BANNED') ||
    ( $status eq 'UNAVAILABLE') ||
    ( $status eq 'INVALID_ACCESS')) {
    my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
      $style);
  if ( $target eq "web" ) {   if ( $target eq "web" ) {
     $result="<br />Part is not open to be viewed. It $accessmsg<br />";      $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
  } elsif ( $target eq 'tex' ) {   } elsif ( $target eq 'tex' ) {
     $result="\\end{minipage}\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\\\begin{minipage}{\\textwidth}";      if (not $env{'form.problem_split'}=~/yes/) {
    $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
       } else {
    $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
       }
  }   }
     } else {      } else {
  if ($target eq 'tex') {   if ($target eq 'tex') {
     $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';      if (not $env{'form.problem_split'}=~/yes/) {
    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");
     if ($Apache::lonhomework::type eq 'exam') { $result .= '\fbox{\textit{'.$weight.' pt}}';}      my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
       my @allkeys = split /,/,$allkeys;
       my $allow_print_points = 0;
       foreach my $partial_key (@allkeys) {
    if ($partial_key=~m/^part_(.*)$/) {
       if ($1 ne '0') {$allow_print_points=1;}
    }
       }
       my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
       if (defined($maxtries) && $maxtries < 0) {
    $allow_print_points=0;
       }
       if (lc($env{'course.'.$env{'request.course.id'}.
       '.disableexampointprint'}) eq 'yes') {
    $allow_print_points=0;
       }
       if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
    } elsif ($target eq 'web') {
       $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
  }   }
     }      }
  }   }
Line 907  sub start_part { Line 1402  sub start_part {
  $result.=&Apache::edit::tag_start($target,$token);   $result.=&Apache::edit::tag_start($target,$token);
  $result.=&Apache::edit::text_arg('Part ID:','id',$token).   $result.=&Apache::edit::text_arg('Part ID:','id',$token).
     &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").      &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
       '&nbsp;&nbsp;'.
   &Apache::edit::text_arg('Displayed Part Description:','display',$token).
  &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');
  if ($constructtag) {   if ($constructtag) {
       #limiting ids to only letters numbers, and space
       $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 924  sub end_part { Line 1423  sub end_part {
     &Apache::lonxml::debug("in end_part $target ");      &Apache::lonxml::debug("in end_part $target ");
     my $status=$Apache::inputtags::status['-1'];      my $status=$Apache::inputtags::status['-1'];
     my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);      my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
     my $result='';      my $in_order_show=&ordered_show_check();
     if ( $target eq 'meta' ) {      my $result;
  $result='';      if (!$Apache::lonxml::metamode) {
     } elsif ( $target eq 'grade' && $status eq 'CAN_ANSWER' && !$hidden) {   $result = &Apache::lonxml::endredirection(); # started in &start_part
  $result=&Apache::inputtags::grade;   $Apache::lonxml::post_evaluate=0;
     } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {      }
       if ($target eq 'grade') {
    if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
       !$hidden && $in_order_show) {
       $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 && $in_order_show) {
  my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,   my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
  $target);   $target);
  if ($Apache::lonhomework::type eq 'exam') {$gradestatus='';}   if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
  $result=$gradestatus;      $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();   $result.=&Apache::edit::end_table();
       } elsif ($target eq 'modified') {
    $result .= $token->[2];
    $result.=&Apache::edit::handle_insertafter($token->[1]);
     }      }
     pop @Apache::inputtags::status;      pop @Apache::inputtags::status;
     $Apache::inputtags::part='';      $Apache::inputtags::part='';
       $Apache::lonhomework::type = $Apache::lonhomework::default_type;
     return $result;      return $result;
 }  }
   
 sub start_preduedate {  sub start_preduedate {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      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'    || $target eq 'answer' ||
  if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&   $target eq 'tex' || $target eq 'webgrade') {
     $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' &&   &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
     $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {   if (!$Apache::lonhomework::scantronmode &&
     &Apache::lonxml::get_all_text("/preduedate",$parser);      $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
       $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
       &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
       &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
  }   }
     }      }
     return '';      return '';
Line 959  sub end_preduedate { Line 1478  sub end_preduedate {
 }  }
   
 sub start_postanswerdate {  sub start_postanswerdate {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {      if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
  if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {   if ($Apache::lonhomework::scantronmode ||
     &Apache::lonxml::get_all_text("/postanswerdate",$parser);      $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
       &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
  }   }
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  return '\vskip 0 mm \noindent';   &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
     }      }
     return '';      return '';
 }  }
Line 975  sub end_postanswerdate { Line 1495  sub end_postanswerdate {
 }  }
   
 sub start_notsolved {  sub start_notsolved {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      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 ($gradestatus =~ /^correct/ &&
       &Apache::response::show_answer()) {
     &Apache::lonxml::debug("skipping");      &Apache::lonxml::debug("skipping");
     &Apache::lonxml::get_all_text("/notsolved",$parser);      &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
  }   }
     }      }
     return '';      return '';
Line 993  sub end_notsolved { Line 1514  sub end_notsolved {
 }  }
   
 sub start_solved {  sub start_solved {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      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') {
  my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};   my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
  if ($gradestatus !~ /^correct/) {   if ($gradestatus !~ /^correct/ ||
     &Apache::lonxml::get_all_text("/solved",$parser);      !&Apache::response::show_answer()) {
       &Apache::lonxml::get_all_text("/solved",$parser,$style);
  }   }
     }      }
     return '';      return '';
Line 1008  sub end_solved { Line 1530  sub end_solved {
     return '';      return '';
 }  }
   
   sub start_problemtype {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
    $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
    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,$style);
    }
    if ($mode eq 'hide' && $found) {
       &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
    }
       } elsif ($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 1016  sub start_startouttext { Line 1580  sub start_startouttext {
 }  }
   
 sub end_startouttext {  sub end_startouttext {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result='';      my $result='';
     my $text='';      my $text='';
   
     if ($target eq 'edit') {      if ($target eq 'edit') {
  $text=&Apache::lonxml::get_all_text("endouttext",$parser);   $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
  $result.=&Apache::edit::start_table($token)."<tr><td>Text Block</td>   $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
 <td>Delete:".  <td>".&mt('Delete:').
                  &Apache::edit::deletelist($target,$token)                   &Apache::edit::deletelist($target,$token)
  ."</td>   ."</td>
 <td>".  <td>".
                  &Apache::edit::insertlist($target,$token).                   &Apache::edit::insertlist($target,$token).
  &Apache::edit::end_row().   &Apache::edit::end_row().
                  &Apache::edit::start_spanning_row()."\n"                   &Apache::edit::start_spanning_row()."\n"
  .'<table><tr><td>'.   . &Apache::loncommon::helpLatexCheatsheet () .
  &Apache::loncommon::help_open_topic("Greek_Symbols",   &Apache::edit::editfield($token->[1],$text,"",80,8,1);
      'Greek Symbols',  
      undef,undef,600)  
  .'</td><td>'.  
  &Apache::loncommon::help_open_topic("Other_Symbols",  
      'Other Symbols',  
      undef,undef,600)  
  .'</td></tr></table>'.  
  &Apache::edit::editfield($token->[1],$text,"",80,4);  
     }      }
     if ($target eq 'modified') {      if ($target eq 'modified') {
  $text=&Apache::lonxml::get_all_text("endouttext",$parser);   $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
  $result='<startouttext />'.&Apache::edit::modifiedfield();  
     }      }
     if ($target eq 'tex') {      if ($target eq 'tex') {
  $result .= '\noindent ';   $result .= '\noindent ';
Line 1069  sub end_endouttext { Line 1624  sub end_endouttext {
 }  }
   
 sub delete_startouttext {  sub delete_startouttext {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     #  my $text=&Apache::lonxml::get_all_text("endouttext",$parser);      #  my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
     my $text=$$parser['-1']->get_text("/endouttext");      my $text=$$parser['-1']->get_text("/endouttext");
     my $ntoken=$$parser['-1']->get_token();      my $ntoken=$$parser['-1']->get_token();
     &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");      &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
Line 1082  sub delete_startouttext { Line 1637  sub delete_startouttext {
     return 1;      return 1;
 }  }
   
   sub start_simpleeditbutton {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result='';
       if (($env{'form.simple_edit_button'} ne 'off') &&
    ($target eq 'web') &&
           (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
           my $url=$env{'request.noversionuri'};
           $url=~s/\?.*$//;
    my ($symb) = &Apache::lonxml::whichuser();
    $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
                   '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&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 />';
       }
       return $result;
   }
   
   sub end_simpleeditbutton {
       return '';
   }
   
 1;  1;
 __END__  __END__
Removed from v.1.183  
changed lines
  Added in v.1.359

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>