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Diff for /loncom/homework/inputtags.pm between versions 1.109 and 1.337

-version 1.109, 2003/07/15 21:26:23
+version 1.337, 2015/10/05 02:35:40
  Line 24
  # /home/httpd/html/adm/gpl.txt
  #
  # http://www.lon-capa.org/
- #
- # 2/19 Guy
+ =pod
+ =head1 NAME
+ Apache::inputtags
+ =head1 SYNOPSIS
+ This is part of the LearningOnline Network with CAPA project
+ described at http://www.lon-capa.org.
+ =head1 NOTABLE SUBROUTINES
+ =over
+ =item
+ =back
+ =cut
  package Apache::inputtags;
  use HTML::Entities();
  use strict;
  use Apache::loncommon;
+ use Apache::lonhtmlcommon;
+ use Apache::lonlocal;
+ use Apache::lonnet;
+ use LONCAPA;
  BEGIN {
-   &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
+     &Apache::lonxml::register('Apache::inputtags',('hiddensubmission','hiddenline','textfield','textline'));
  }
+ =pod
+ =item initialize_inputtags()
+ Initializes a set of global variables used during the parse of the problem.
+ @Apache::inputtags::input        - List of current input ids.
+ @Apache::inputtags::inputlist    - List of all input ids seen this problem.
+ @Apache::inputtags::response     - List of all current resopnse ids.
+ @Apache::inputtags::responselist - List of all response ids seen this
+                                      problem.
+ @Apache::inputtags::hint         - List of all hint ids.
+ @Apache::inputtags::hintlist     - List of all hint ids seen this problem.
+ @Apache::inputtags::previous     - List describing if specific responseds
+                                      have been used
+ @Apache::inputtags::previous_version - Submission responses were used in.
+ $Apache::inputtags::part         - Current part id (valid only in
+                                      <problem>)
+if not in a part.
+ @Apache::inputtags::partlist     - List of part ids seen in the current
+                                      <problem>
+ @Apache::inputtags::status       - List of problem  statuses. First
+                                    element is the status of the <problem>
+                                    the remainder are for individual <part>s.
+ %Apache::inputtags::params       - Hash of defined parameters for the
+                                    current response.
+ @Apache::inputtags::import       - List of all ids for <import> thes get
+                                    join()ed and prepended.
+ @Apache::inputtags::importlist   - List of all import ids seen.
+ $Apache::inputtags::response_with_no_part
+                                  - Flag set true if we have seen a response
+                                    that is not inside a <part>
+ %Apache::inputtags::answertxt    - <*response> tags store correct
+                                    answer strings for display by <textline/>
+                                    in this hash.
+ %Apache::inputtags::submission_display
+                                  - <*response> tags store improved display
+                                    of submission strings for display by part
+                                    end.
+ =cut
  sub initialize_inputtags {
-   # list of current input ids
+     @Apache::inputtags::input=();
-   @Apache::inputtags::input=();
+     @Apache::inputtags::inputlist=();
-   # list of all input ids seen in this problem
+     @Apache::inputtags::response=();
-   @Apache::inputtags::inputlist=();
+     @Apache::inputtags::responselist=();
-   # list of all current response ids
+     @Apache::inputtags::hint=();
-   @Apache::inputtags::response=();
+     @Apache::inputtags::hintlist=();
-   # list of all response ids seen in this problem
+     @Apache::inputtags::previous=();
-   @Apache::inputtags::responselist=();
+     @Apache::inputtags::previous_version=();
-   # list of whether or not a specific response was previously used
+     $Apache::inputtags::part='';
-   @Apache::inputtags::previous=();
+     @Apache::inputtags::partlist=();
-   # submission it was used in
+     @Apache::inputtags::status=();
-   @Apache::inputtags::previous_version=();
+     %Apache::inputtags::params=();
-   # id of current part, 0 means that no part is current (inside <problem> only
+     @Apache::inputtags::import=();
-   $Apache::inputtags::part='';
+     @Apache::inputtags::importlist=();
-   # list of all part ids seen
+     $Apache::inputtags::response_with_no_part=0;
-   @Apache::inputtags::partlist=();
+     %Apache::inputtags::answertxt=();
-   # list of problem date statuses, the first element is for <problem>
+     %Apache::inputtags::submission_display=();
-   # if there is a second element it is for the current <part>
+ }
-   @Apache::inputtags::status=();
-   # hash of defined params for the current response
+ #
-   %Apache::inputtags::params=();
+ #  provides the onblur binding for spellchecking.  This could be an
-   # list of all ids, for <import>, these get join()ed and prepended
+ #  empty string if spellchecking was not enabled.
-   @Apache::inputtags::import=();
+ #  Jquery selector binding is done rather than setting an onblur
-   # list of all import ids seen
+ #  attribute because we'll need to set the element's spellcheck language
-   @Apache::inputtags::importlist=();
+ #  option dynamically so we need $(this) to be defined.
+ #
+ # @param id   - The element id to bind.
+ # @param lang - Language in which spellchecking is desired.
+ #               if undef, nothing is generated.
+ # @return string - onblur specification to do the requested spellchecking.
+ #
+ sub spellcheck_onblur {
+     my ($id, $lang) = @_;
+     my $result = '';
+     if ($lang) {
+ 	$result = <<JAVASCRIPT;
+ <script type="text/javascript">
+ \$('\#$id').blur(function() {
+     doSpellcheck('\#$id', '$lang');
+  });
+ </script>
+ JAVASCRIPT
+     }
+     return $result;
  }
  sub check_for_duplicate_ids {
      my %check;
      foreach my $id (@Apache::inputtags::partlist,
  		    @Apache::inputtags::responselist,
+ 		    @Apache::inputtags::hintlist,
  		    @Apache::inputtags::importlist) {
  	$check{$id}++;
      }
- Line 84  sub check_for_duplicate_ids {
+ Line 176  sub check_for_duplicate_ids {
  }
  sub start_input {
-   my ($parstack,$safeeval)=@_;
+     my ($parstack,$safeeval)=@_;
-   my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
+     my $id = &Apache::lonxml::get_id($parstack,$safeeval);
-   if ($id eq '') { $id = $Apache::lonxml::curdepth; }
+     push (@Apache::inputtags::input,$id);
-   push (@Apache::inputtags::input,$id);
+     push (@Apache::inputtags::inputlist,$id);
-   push (@Apache::inputtags::inputlist,$id);
+     return $id;
-   return $id;
  }
  sub end_input {
-   pop @Apache::inputtags::input;
+     pop @Apache::inputtags::input;
-   return '';
+     return '';
+ }
+ sub addchars {
+     my ($fieldid,$addchars)=@_;
+     my $output='';
+     foreach (split(/\,/,$addchars)) {
+ 	$output.='<a href="javascript:void(document.forms.lonhomework.'.
+ 	    $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
+     }
+     return $output;
  }
  sub start_textfield {
-   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-   my $result = "";
+     my $result = "";
-   my $id = &start_input($parstack,$safeeval);
+     my $id = &start_input($parstack,$safeeval);
-   my $resid=$Apache::inputtags::response[-1];
+     my $resid=$Apache::inputtags::response[-1];
-   if ($target eq 'web') {
+     if ($target eq 'web') {
-     $Apache::lonxml::evaluate--;
+ 	$Apache::lonxml::evaluate--;
-     if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
  	my $partid=$Apache::inputtags::part;
- 	my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"});
+         my ($oldresponse,$newvariation);
- 	my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
+         if ((($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry') ||
- 	if ( $cols eq '') { $cols = 80; }
+              ($Apache::lonhomework::type eq 'randomizetry')) &&
- 	my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
+              ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
- 	if ( $rows eq '') { $rows = 10; }
+             if ($env{'form.'.$partid.'.rndseed'} ne
- 	$result= '<textarea name="HWVAL_'.$resid.'" '.
+                 $Apache::lonhomework::history{"resource.$partid.rndseed"}) {
- 	    "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
+                 $newvariation = 1;
- 	if ($oldresponse ne '') {
+             }
- 	    #get rid of any startup text if the user has already responded
+         }
- 	    &Apache::lonxml::get_all_text("/textfield",$parser);
+         unless ($newvariation) {
+             if ((($env{'form.grade_username'} eq '') && ($env{'form.grade_domain'} eq '')) ||
+                 (($env{'form.grade_username'} eq $env{'user.name'}) &&
+                  ($env{'form.grade_domain'} eq $env{'user.domain'}))) {
+                 $oldresponse = $Apache::lonhomework::history{"resource.$partid.$resid.submission"};
+             } elsif (($Apache::lonhomework::history{"resource.$partid.type"} eq 'anonsurvey') ||
+                     ($Apache::lonhomework::history{"resource.$partid.type"} eq 'anonsurveycred')) {
+                 $oldresponse = '* '.&mt('(only shown to submitter)').' *';
+             } else {
+                 $oldresponse = $Apache::lonhomework::history{"resource.$partid.$resid.submission"};
+             }
+         }
+ 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+ 	    my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
+ 	    if ( $cols eq '') { $cols = 80; }
+ 	    my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
+ 	    if ( $rows eq '') { $rows = 16; }
+ 	    my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
+ 	    $result='';
+ 	    my $tagident = 'HWVAL_' . $resid;
+             my $itemid = 'HWVAL_'.$partid.'_'.$resid;
+ 	    if ($addchars) {
+ 		$result.=&addchars($tagident, $addchars);
+ 	    }
+             my $textareaclass;
+             unless (&Apache::londefdef::is_inside_of($tagstack,
+                                                     'externalresponse')) {
+                 $textareaclass = 'class="LC_richDetectHtml spellchecked"';
+             }
+ 	    $result.= '<textarea wrap="hard" name="'.$tagident.'" id="'.$itemid.'" ' .
+ 		      'rows="'.$rows.'" cols="'.$cols.'" '.$textareaclass
+ 		      .'>'.
+                       &HTML::Entities::encode($oldresponse,'<>&"');
+ 	    if ($oldresponse ne '') {
+ 		#get rid of any startup text if the user has already responded
+ 		&Apache::lonxml::get_all_text("/textfield",$parser,$style);
+ 	    }
+ 	} else {
+ 	    #show past answer in the essayresponse case
+ 	    if ($oldresponse =~ /\S/
+ 		&& &Apache::londefdef::is_inside_of($tagstack,
+ 						    'essayresponse') ) {
+ 		$result='<table class="LC_pastsubmission"><tr><td>'.
+ 		    &HTML::Entities::encode($oldresponse,'"<>&').
+                     '</td></tr></table>';
+ 	    }
+ 	    #get rid of any startup text
+ 	    &Apache::lonxml::get_all_text("/textfield",$parser,$style);
+ 	}
+     } elsif ($target eq 'grade') {
+ 	my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
+ 						   $style);
+ 	if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
+ 	    # if the seed text is still there it wasn't a real submission
+ 	    $env{'form.HWVAL_'.$resid}='';
+ 	}
+     } elsif ($target eq 'edit') {
+ 	$result.=&Apache::edit::tag_start($target,$token);
+ 	$result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
+ 	$result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
+ 	$result.=&Apache::edit::text_arg
+ 	    ('Click-On Texts (comma sep):','addchars',$token,10);
+ 	my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
+ 						   $style);
+ 	$result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
+         my $spell_langs = &spelling_languages();
+ 	$result .= &Apache::edit::select_arg('Spellcheck for:', 'spellcheck',
+ 					     $spell_langs, $token);
+     } elsif ($target eq 'modified') {
+ 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
+ 						     $safeeval,'rows','cols',
+ 						     'addchars', 'spellcheck');
+ 	if ($constructtag) {
+ 	    $result = &Apache::edit::rebuild_tag($token);
+ 	} else {
+ 	    $result=$token->[4];
+ 	}
+ 	$result.=&Apache::edit::modifiedfield("/textfield",$parser);
+     } elsif ($target eq 'tex') {
+ 	my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
+ 	my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
+ 	if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
+ 	    $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
+ 	    for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
+ 	    $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
+ 	} else {
+             if ($env{'form.pdfFormFields'} eq 'yes') {
+                 my $fieldname = $env{'request.symb'}.
+                                 '&part_'. $Apache::inputtags::part.
+                                 '&textresponse'.
+                                 '&HWVAL_' . $Apache::inputtags::response['-1'];
+                 $result.='\TextField[name='.$fieldname.',multiline=true,height=6\baselineskip,width=270,borderwidth=0,backgroundcolor={.85 .85 .85}]\\';
+             } else {
+                 my $TeXwidth=$width_of_box/80;
+                 $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
+                 for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
+                 $result.='}}}\vskip 2 mm ';
+             }
  	}
-     } else {
- 	#right or wrong don't show it
- 	#$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
- 	$result='';
- 	#get rid of any startup text
- 	&Apache::lonxml::get_all_text("/textfield",$parser);
-     }
-   } elsif ($target eq 'grade') {
-     my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser);
-     if ($seedtext eq $ENV{'form.HWVAL_'.$resid}) {
-       # if the seed text is still there it wasn't a real submission
-       $ENV{'form.HWVAL_'.$resid}='';
-     }
-   } elsif ($target eq 'edit') {
-     $result.=&Apache::edit::tag_start($target,$token);
-     $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
-     $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
-     my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser);
-     $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
-   } elsif ($target eq 'modified') {
-     my $constructtag=&Apache::edit::get_new_args($token,$parstack,
- 						 $safeeval,'rows','cols');
-     if ($constructtag) {
-       $result = &Apache::edit::rebuild_tag($token);
-     } else {
-       $result=$token->[4];
      }
-     my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser);
+     return $result;
-     $result.=&Apache::edit::modifiedfield();
-   } elsif ($target eq 'tex') {
-       my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
-       my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
-       if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
- 	  $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
- 	  for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
- 	  $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
-       } else {
- 	  my $TeXwidth=$width_of_box/80;
- 	  $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
- 	  for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
- 	  $result.='}}}\vskip 2 mm ';
-       }
-   }
-   return $result;
  }
  sub end_textfield {
-   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
-   my $result;
+     my $result;
-   if ($target eq 'web') {
+     if ($target eq 'web') {
-     $Apache::lonxml::evaluate++;
+ 	my $spellcheck = &Apache::lonxml::get_param('spellcheck', $parstack, $safeeval);
-     if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+ 	$Apache::lonxml::evaluate++;
-       return "</textarea>";
+ 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+             my $partid=$Apache::inputtags::part;
+ 	    my $resid = $Apache::inputtags::response[-1];
+ 	    my $itemid = 'HWVAL_' . $partid . '_' . $resid;
+ 	    my $result =  "</textarea>";
+ 	    $result .= &spellcheck_onblur($itemid, $spellcheck);
+ 	    return $result;
+ 	}
+     } elsif ($target eq 'edit') {
+ 	$result=&Apache::edit::end_table();
+     }
+     &end_input;
+     return $result;
+ }
+ sub exam_score_line {
+     my ($target) = @_;
+     my $result;
+     if ($target eq 'tex') {
+ 	my $repetition = &Apache::response::repetition();
+ 	$result.='\begin{enumerate}';
+ 	if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
+ 	foreach my $i (0..$repetition-1) {
+ 	    $result.='\item[\textbf{'.
+ 		($Apache::lonxml::counter+$i).
+ 		'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
+ 	}
+ 	$result.= '\end{enumerate}';
      }
-   } elsif ($target eq 'edit') {
-     $result=&Apache::edit::end_table();
+     return $result;
-   }
+ }
-   &end_input;
-   return $result;
+ sub exam_box {
+     my ($target) = @_;
+     my $result;
+     if ($target eq 'tex') {
+ 	$result .= '\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
+ 	$result .= &exam_score_line($target);
+     } elsif ($target eq 'web') {
+ 	my $id=$Apache::inputtags::response[-1];
+ 	$result.= '<br /><br />
+                    <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
+                    </textarea> <br /><br />';
+     }
+     return $result;
+ }
+ sub needs_exam_box {
+     my ($tagstack) = @_;
+     my @tags = ('formularesponse',
+ 		'stringresponse',
+ 		'reactionresponse',
+ 		'organicresponse',
+ 		);
+     foreach my $tag (@tags) {
+ 	if (grep(/\Q$tag\E/,@$tagstack)) {
+ 	    return 1;
+ 	}
+     }
+     return 0;
  }
  sub start_textline {
-   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
-   my $result = "";
+     my $result = "";
-   if ($target eq 'web') {
+     my $input_id = &start_input($parstack,$safeeval);
-     $Apache::lonxml::evaluate--;
-     my $partid=$Apache::inputtags::part;
+     # The spellcheck attribute
-     my $id=$Apache::inputtags::response[-1];
+     # 1. enables spellchecking.
-     if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+     # 2. Provides the language code in which the spellchecking will be performed.
-       my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
-       my $maxlength;
+     my $spellcheck = &Apache::lonxml::get_param('spellcheck', $parstack, $safeeval);
-       if ($size eq '') { $size=20; } else {
+     if ($target eq 'web') {
- 	if ($size < 20) { $maxlength=$size; }
+ 	$Apache::lonxml::evaluate--;
-       }
+ 	my $partid=$Apache::inputtags::part;
-       my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
+ 	my $id=$Apache::inputtags::response[-1];
-       if ($Apache::lonhomework::type ne 'exam') {
+ 	if (!&Apache::response::show_answer()) {
-         $result= '<input type="text" name="HWVAL_'.$id.'" value="'.
+ 	    my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
- 	    $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
+ 	    my $maxlength;
-       }
+ 	    if ($size eq '') { $size=20; } else {
-     } else {
+ 		if ($size < 20) {
-       #right or wrong don't show what was last typed in.
+ 		    $maxlength = ' maxlength="'.$size.'"';
-       #$result='<i>'.$oldresponse.'</i>';
+ 		}
-       $result='';
+ 	    }
-     }
+             my ($oldresponse,$newvariation);
-   } elsif ($target eq 'edit') {
+             if ((($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry') ||
-     $result=&Apache::edit::tag_start($target,$token);
+                  ($Apache::lonhomework::type eq 'randomizetry')) &&
-     $result.=&Apache::edit::text_arg('Size:','size',$token,'5')."</td></tr>";
+                  ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
-     $result.=&Apache::edit::end_table;
+                 if ($env{'form.'.$partid.'.rndseed'} ne
-   } elsif ($target eq 'modified') {
+                     $Apache::lonhomework::history{"resource.$partid.rndseed"}) {
-     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'size');
+                     $newvariation = 1;
-     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
+                 }
-   } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
+             }
-       my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
+             unless ($newvariation) {
-       if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
+                 if ((($env{'form.grade_username'} eq '') && ($env{'form.grade_domain'} eq '')) ||
-       $result='\framebox['.$size.'][s]{\tiny\strut}';
+                     (($env{'form.grade_username'} eq $env{'user.name'}) &&
-   }
+                      ($env{'form.grade_domain'} eq $env{'user.domain'}))) {
-   return $result;
+                     $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
+                 } elsif (($Apache::lonhomework::history{"resource.$partid.type"} eq 'anonsurvey') ||
+                         ($Apache::lonhomework::history{"resource.$partid.type"} eq 'anonsurveycred') ||
+                         ($Apache::lonhomework::type eq 'anonsurvey') ||
+                         ($Apache::lonhomework::type eq 'anonsurveycred')) {
+                         $oldresponse = '* '.&mt('(only shown to submitter)').' *';
+                 } else {
+                     $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
+                 }
+ 	        &Apache::lonxml::debug("oldresponse $oldresponse is ".ref($oldresponse));
+ 	        if (ref($oldresponse) eq 'ARRAY') {
+ 		    $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
+ 	        }
+ 	        $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
+                 $oldresponse =~ s/^\s+//;
+                 $oldresponse =~ s/\s+$//;
+                 $oldresponse =~ s/\s+/ /g;
+             }
+ 	    if ($Apache::lonhomework::type ne 'exam') {
+ 		my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
+ 		$result='';
+ 		if ($addchars) {
+ 		    $result.=&addchars('HWVAL_'.$id,$addchars);
+ 		}
+ 		my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
+ 							$safeeval);
+ 		if (lc($readonly) eq 'yes'
+ 		    || $Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
+ 		    $readonly=' readonly="readonly" ';
+ 		} else {
+ 		    $readonly='';
+ 		}
+ 		my $name = 'HWVAL_'.$id;
+                 my $itemid = 'HWVAL_'.$partid.'_'.$id;
+ 		if ($Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
+ 		    $name = "none";
+ 		}
+ 		$result.= '<input onkeydown="javascript:setSubmittedPart(\''.$partid.'\');"'
+ 		     . ' onfocus="javascript:disableAutoComplete(\''.$itemid.'\');"'
+ 		     . ' type="text" '.$readonly.' name="'. $name . '"'
+ 		     . ' id="' . $itemid . '"'
+ 		     . ' value="'.  $oldresponse.'"'
+ 		     . ' class="LC_textline spellchecked"  size="'.$size.'"'.$maxlength.' />';
+ 		$result .= &spellcheck_onblur($itemid, $spellcheck);
+ 	    }
+ 	    if ($Apache::lonhomework::type eq 'exam'
+ 		&& &needs_exam_box($tagstack)) {
+ 		$result.=&exam_box($target);
+ 	    }
+ 	} else {
+ 	    #right or wrong don't show what was last typed in.
+ 	    my $count = scalar(@Apache::inputtags::inputlist)-1;
+ 	    $result='<b>'.$Apache::inputtags::answertxt{$id}[$count].'</b>';
+ 	    #$result='';
+ 	}
+     } elsif ($target eq 'edit') {
+ 	$result=&Apache::edit::tag_start($target,$token);
+ 	$result.=&Apache::edit::text_arg('Size:','size',$token,'5').
+ 	    &Apache::edit::text_arg('Click-On Texts (comma sep):',
+ 				    'addchars',$token,10);
+         $result.=&Apache::edit::select_arg('Readonly:','readonly',
+ 					   ['no','yes'],$token);
+         my $spell_langs = &spelling_languages();
+ 	$result.=&Apache::edit::select_arg('Spellcheck for:', 'spellcheck',
+ 					   $spell_langs, $token);
+ 	$result.=&Apache::edit::end_row();
+ 	$result.=&Apache::edit::end_table();
+     } elsif ($target eq 'modified') {
+ 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
+ 						     $safeeval,'size',
+ 						     'addchars','readonly', 'spellcheck');
+ 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
+     } elsif ($target eq 'tex'
+ 	     && $Apache::lonhomework::type ne 'exam') {
+ 	my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
+ 	if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
+ 	if ($env{'form.pdfFormFields'} eq 'yes'
+             && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+             my $fieldname = $env{'request.symb'}.
+                                  '&part_'. $Apache::inputtags::part.
+                                  '&textresponse'.
+                                  '&HWVAL_' . $Apache::inputtags::response['-1'];
+             $result='\textField{'.$fieldname.'}{'.$size.'}{12 bp}';
+         } else {
+             $result='\framebox['.$size.'][s]{\tiny\strut}';
+         }
+     } elsif ($target eq 'tex'
+ 	     && $Apache::lonhomework::type eq 'exam'
+ 	     && &needs_exam_box($tagstack)) {
+ 	$result.=&exam_box($target);
+     }
+     return $result;
  }
  sub end_textline {
-   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
-   if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
+     if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
-   elsif ($target eq 'edit') { return ('','no'); }
+     elsif ($target eq 'edit') { return ('','no'); }
-   return "";
+     &end_input();
+     return "";
  }
  sub start_hiddenline {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
      my $result = "";
+     my $input_id = &start_input($parstack,$safeeval);
      if ($target eq 'web') {
  	$Apache::lonxml::evaluate--;
  	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
  	    my $partid=$Apache::inputtags::part;
  	    my $id=$Apache::inputtags::response[-1];
- 	    my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
+ 	    my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
+ 	    if (ref($oldresponse) eq 'ARRAY') {
+ 		$oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
+ 	    }
+ 	    $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
  	    if ($Apache::lonhomework::type ne 'exam') {
  		$result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
  		    $oldresponse.'" />';
- Line 241  sub start_hiddenline {
+ Line 553  sub start_hiddenline {
  	$result=&Apache::edit::tag_start($target,$token);
  	$result.=&Apache::edit::end_table;
      }
+     if ( ($target eq 'web' || $target eq 'tex')
+ 	 && $Apache::lonhomework::type eq 'exam'
+ 	 && &needs_exam_box($tagstack)) {
+ 	$result.=&exam_box($target);
+     }
      return $result;
  }
  sub end_hiddenline {
-   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
-   if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
+     if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
-   elsif ($target eq 'edit') { return ('','no'); }
+     elsif ($target eq 'edit') { return ('','no'); }
-   return "";
+     &end_input();
+     return "";
+ }
+ sub start_hiddensubmission {
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my $result = "";
+     my $input_id = &start_input($parstack,$safeeval);
+     if ($target eq 'web') {
+         $Apache::lonxml::evaluate--;
+         if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+             my $partid=$Apache::inputtags::part;
+             my $id=$Apache::inputtags::response[-1];
+             if ($Apache::lonhomework::type ne 'exam') {
+                 my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
+                 $value = &HTML::Entities::encode($value,'<>&"');
+                 $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.$value.'" />';
+             }
+         }
+     } elsif ($target eq 'edit') {
+         $result=&Apache::edit::tag_start($target,$token);
+         $result.=&Apache::edit::text_arg('Value:','value',$token,'15');
+         $result.=&Apache::edit::end_row();
+         $result.=&Apache::edit::end_table();
+     } elsif ($target eq 'modified') {
+         my $constructtag=&Apache::edit::get_new_args($token,$parstack,
+                                                      $safeeval,'value');
+         if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
+     }
+     if ( ($target eq 'web' || $target eq 'tex')
+          && $Apache::lonhomework::type eq 'exam'
+          && &needs_exam_box($tagstack)) {
+         $result.=&exam_box($target);
+     }
+     return $result;
+ }
+ sub end_hiddensubmission {
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
+     elsif ($target eq 'edit') { return ('','no'); }
+     &end_input();
+     return "";
+ }
+ =pod
+ =item file_selector()
+ $part -> partid
+ $id -> responseid
+ $uploadefiletypes -> comma seperated list of extensions allowed or * for any
+ $which -> 'uploadonly'  -> only newly uploaded files
+           'portfolioonly' -> only allow files from portfolio
+           'both' -> allow files from either location
+ $extratext -> additional text to go between the link and the input box
+ $maxfilesize -> maximum cumulative filesize for submitted files (in MB).
+ returns a table row <tr>
+ =cut
+ sub file_selector {
+     my ($part,$id,$uploadedfiletypes,$which,$extratext,$maxfilesize)=@_;
+     if (!$uploadedfiletypes) { return ''; }
+     my $jspart=$part;
+     $jspart=~s/\./_/g;
+     my $result;
+     my $current_files_display = &current_file_submissions($part,$id);
+     my $addfiles;
+     if ($current_files_display) {
+         $result .= &Apache::lonhtmlcommon::row_title(&mt('Files currently selected for submission')).
+                    $current_files_display.
+                    &Apache::lonhtmlcommon::row_closure();
+         $addfiles = &mt('Submit other file(s)');
+     } else {
+         $addfiles = &mt('Choose file(s) to submit');
+     }
+     $result .= &Apache::lonhtmlcommon::row_title($addfiles);
+     my $constraints;
+     if ($uploadedfiletypes ne '*') {
+ 	$constraints =
+ 	    &mt('Allowed filetypes: [_1]','<b>'.$uploadedfiletypes.'</b>').'<br />';
+     }
+     if ($maxfilesize) {
+         $constraints .= &mt('Combined size of all files not to exceed: [_1] MB.',
+                         '<b>'.$maxfilesize.'</b>').'<br />';
+     }
+     if ($constraints) {
+         $result .= $constraints.'<br />';
+     }
+     if ($which eq 'uploadonly' || $which eq 'both') {
+         my $free_space = $maxfilesize * 1048576;
+         $result .= &mt('Submit a file: (only one file per submission)').
+             ' <br /><input type="file" size="50" name="HWFILE'.$jspart.'_'.$id.
+             '" id="HWFILE'.$jspart.'_'.$id.'" class="flUpload" /><br />'.
+             '<input type="hidden" id="free_space" value="'.$free_space.'" /><br />'
+         }
+     if ( $which eq 'both') {
+ 	$result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
+     }
+     if ($which eq 'portfolioonly' || $which eq 'both') {
+         my $symb = $env{'request.symb'};
+         (undef,undef,my $res)=&Apache::lonnet::decode_symb($symb);
+         my $showsymb;
+         # If resource is a .task and URL is unencrypted, include symb in query string
+         # for url opened in portfolio file selection window. Can be used to override
+         # blocking of portfolio access resulting from an exam event in a different course.
+         if ($res =~ /\.task$/i) {
+             my $encsymb = &Apache::lonenc::check_encrypt($symb);
+             if ($symb eq $encsymb) {
+                 $showsymb = $symb;
+             }
+         }
+ 	$result.=$extratext.'<a href='."'".'javascript:void(window.open("/adm/portfolio?mode=selectfile&amp;fieldname='.$env{'form.request.prefix'}.'HWPORT'.$jspart.'_'.$id.'&amp;symb='.$showsymb.'","cat","height=600,width=800,scrollbars=1,resizable=1,menubar=2,location=1"))'."'".'>'.
+ 	    &mt('Select Portfolio Files: (one or more files per submission)').'</a><br />'.
+ 	    '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
+ 	    '<br />';
+     }
+     $result.=&Apache::lonhtmlcommon::row_closure(1);
+     return $result;
+ }
+ sub current_file_submissions {
+     my ($part,$id) = @_;
+     my $jspart=$part;
+     $jspart=~s/\./_/g;
+     my $uploadedfile=$Apache::lonhomework::history{"resource.$part.$id.uploadedfile"};
+     my $portfiles=$Apache::lonhomework::history{"resource.$part.$id.portfiles"};
+     return if (($uploadedfile eq '') && ($portfiles !~/[^\s]/));
+     my @unversioned;
+     foreach my $file (split(/\s*,\s*/,&unescape($portfiles))) {
+         my ($path,$name) = ($file =~ m{^(.*/)([^/]+)$});
+         my ($origname,$version,$ext) = &Apache::lonnet::file_name_version_ext($name);
+         unless ($version) {
+             push(@unversioned,$file);
+         }
+     }
+     return if (!@unversioned);
+     my $header = &portpath_popup_js().
+                  &Apache::loncommon::start_data_table().
+                  &Apache::loncommon::start_data_table_header_row();
+     if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+         $header .= '<th>'.&mt('Delete?').'</th>';
+     }
+     $header .=   '<th>'.&mt('File').'</th>'.
+                  '<th>'.&mt('Size (MB)').'</th>'.
+                  '<th>'.&mt('Last Modified').'</th>'.
+                  &Apache::loncommon::end_data_table_header_row();
+     my ($symb,$crsid,$udom,$uname)=&Apache::lonnet::whichuser();
+     my ($cdom,$cnum) = ($crsid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/);
+     my ($result,$header_shown,%okfiles,%rows,%legacy,@bad_file_list);
+     if ($uploadedfile) {
+         my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
+         my $link = &HTML::Entities::encode($url,'<>&"');
+         my ($path,$name) = ($url =~ m{^(/uploaded/\Q$udom\E/\Q$uname\E/essayresponse.*/)([^/]+)$});
+         my ($status,$hashref,$error) =
+             &current_file_info($url,$link,$name,$path);
+         if ($status eq 'ok') {
+             push(@{$okfiles{$name}},$url);
+             $rows{$url} = $hashref;
+             $legacy{$url} = 1;
+             &Apache::lonxml::extlink($url);
+             &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
+         } else {
+             push(@bad_file_list,$error);
+         }
+     }
+     if (@unversioned > 0) {
+         my $prefix = "/uploaded/$udom/$uname/portfolio";
+         foreach my $file (@unversioned) {
+             my ($path,$name) = ($file =~ m{^(.*/)([^/]+)$});
+             my $url = $prefix.$path.$name;
+             my $uploadedfile = &HTML::Entities::encode($url,'<>&"');
+             my ($status,$hashref,$error) =
+                 &current_file_info($url,$uploadedfile,$name,$path);
+             if ($status eq 'ok') {
+                 push(@{$okfiles{$name}},$url);
+                 $rows{$url} = $hashref;
+             } else {
+                 push(@bad_file_list,$error);
+             }
+         }
+     }
+     my $num = 0;
+     foreach my $name (sort(keys(%okfiles))) {
+         if (ref($okfiles{$name}) eq 'ARRAY') {
+             foreach my $url (@{$okfiles{$name}}) {
+                 if (ref($rows{$url}) eq 'HASH') {
+                     my $link = $rows{$url}{link};
+                     my $portfile = $rows{$url}{path}.$rows{$url}{name};
+                     $portfile = &HTML::Entities::encode($portfile,'<>&"');
+                     if ($link) {
+                         my $icon=&Apache::loncommon::icon($url);
+                         unless ($header_shown) {
+                             $result .= $header;
+                             $header_shown = 1;
+                         }
+                         $result.=
+                             &Apache::loncommon::start_data_table_row()."\n";
+                         if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+                             $result .=
+                                  '<td valign="bottom"><input type="checkbox" name="HWFILE'.$jspart.'_'.$id.'_delete"'.
+                                  ' value="'.$portfile.'" id="HWFILE'.$jspart.'_'.$id.'_'.$num.'_delete" /></td>'."\n";
+                             $num ++;
+                         }
+                         my $pathid = 'HWFILE'.$jspart.'_'.$id.'_'.$num.'_path';
+                         my $pathidtext = $pathid.'text';
+                         my ($showname,$showpath);
+                         if ($legacy{$url}) {
+                             $showname = $name.' '.&mt('not in portfolio');
+                         } else {
+                             $showname = $name;
+                             $showpath = '<br />'.
+                                         '<span id="'.$pathidtext.'" class="LC_cusr_subheading">'.
+                                         '<a href="javascript:showPortPath('."'$pathid','$pathidtext'".');" '.
+                                         'class="LC_menubuttons_link">'.
+                                         &mt('(Show path)').'</a></span>'.
+                                         '<div id="'.$pathid.'" class="LC_dccid">'.$rows{$url}{path}.$name.
+ '</div>';
+                         }
+                         $result .=
+                             '<td><a href="'.$link.'"><img src="'.$icon.
+                             '" border="0" alt="" />'.$showname.'</a>'.$showpath.'</td>'."\n".
+                             '<td align="right" valign="bottom">'.$rows{$url}{size}.'</td>'."\n".
+                             '<td align="right" valign="bottom">'.$rows{$url}{lastmodified}.'</td>'."\n".
+                             &Apache::loncommon::end_data_table_row();
+                     }
+                 }
+             }
+         }
+     }
+     if ($header_shown) {
+         $result .= &Apache::loncommon::end_data_table();
+         if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+             $result .= '<br /><span class="LC_warning">'.
+                        &mt('Exclude existing file(s) from grading by checking the "Delete?" checkbox(es) and clicking "Submit Answer"').'</span>';
+         }
+     }
+     if (@bad_file_list) {
+         my $bad_files = '<span class="LC_filename">'.
+             join('</span>, <span class="LC_filename">',@bad_file_list).
+             '</span>';
+         $result.='<p class="LC_error">'.
+                  &mt("These file(s) don't exist: [_1]",$bad_files).
+                  '</p>';
+     }
+     return $result;
+ }
+ sub current_file_info {
+     my ($url,$uploadedfile,$name,$path) = @_;
+     my ($status,$error,%info);
+     my @stat = &Apache::lonnet::stat_file($url);
+     if ((@stat) && ($stat[0] ne 'no_such_dir')) {
+         my ($lastmod,$size);
+         if ($stat[9] =~ /^\d+$/) {
+             $lastmod = &Apache::lonlocal::locallocaltime($stat[9]);
+         }
+         $size = $stat[7]/(1024*1024);
+         $size = sprintf("%.3f",$size);
+         %info = (
+                     link         => $uploadedfile,
+                     name         => $name,
+                     path         => $path,
+                     size         => $size,
+                     lastmodified => $lastmod,
+                 );
+         $status = 'ok';
+     } else {
+         &Apache::lonnet::logthis("bad file is $url");
+         my $icon=&Apache::loncommon::icon($url);
+         $error = '<a href="'.$url.'"><img src="'.$icon.
+                  '" border="0" />'.$uploadedfile.'</a>';
+     }
+     return ($status,\%info,$error);
+ }
+ sub portpath_popup_js {
+     my %lt = &Apache::lonlocal::texthash(
+                                           show => '(Show path)',
+                                           hide => '(Hide)',
+                                         );
+     return <<"END";
+ <script type="text/javascript">
+ // <![CDATA[
+ function showPortPath(id,idtext) {
+     document.getElementById(id).style.display='block';
+     document.getElementById(id).style.textAlign='left';
+     document.getElementById(id).style.textFace='normal';
+     if (document.getElementById(idtext)) {
+         document.getElementById(idtext).innerHTML ='<a href="javascript:hidePortPath(\\''+id+'\\',\\''+idtext+'\\'); '+
+                                                    '"class="LC_menubuttons_link">$lt{'hide'}</a>&nbsp;';
+     }
+     return;
+ }
+ function hidePortPath(id,idtext) {
+     if (document.getElementById(id)) {
+         document.getElementById(id).style.display='none';
+     }
+     if (document.getElementById(idtext)) {
+         document.getElementById(idtext).innerHTML ='<a href="javascript:showPortPath(\\''+id+'\\',\\''+idtext+'\\');" '+
+                                                    'class="LC_menubuttons_link">$lt{'show'}</a>';
+     }
+     return;
+ }
+ // ]]>
+ </script>
+ END
+ }
+ sub valid_award {
+     my ($award) =@_;
+     foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
+ 			       'NO_RESPONSE','WRONG_NUMBOXESCHECKED',
+ 			       'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
+ 			       'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
+ 			       'UNIT_FAIL', 'NO_UNIT',
+ 			       'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
+ 			       'BAD_FORMULA', 'NOT_FUNCTION', 'WRONG_FORMAT',
+                                'INTERNAL_ERROR', 'SIG_FAIL', 'INCORRECT',
+ 			       'MISORDERED_RANK', 'INVALID_FILETYPE',
+                                'EXCESS_FILESIZE', 'FILENAME_INUSE',
+ 			       'DRAFT', 'SUBMITTED', 'SUBMITTED_CREDIT',
+                                'ANONYMOUS', 'ANONYMOUS_CREDIT',
+                                'ASSIGNED_SCORE', 'APPROX_ANS',
+ 			       'EXACT_ANS','COMMA_FAIL') {
+ 	if ($award eq $possibleaward) { return 1; }
+     }
+     return 0;
+ }
+ {
+     my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
+ 		  'WRONG_NUMBOXESCHECKED','TOO_LONG',
+ 		  'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
+ 		  'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
+ 		  'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA',  'NOT_FUNCTION',
+                   'WRONG_FORMAT', 'INTERNAL_ERROR',
+ 		  'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
+ 		  'INVALID_FILETYPE', 'EXCESS_FILESIZE', 'FILENAME_INUSE',
+                   'DRAFT', 'SUBMITTED',
+                   'SUBMITTED_CREDIT', 'ANONYMOUS', 'ANONYMOUS_CREDIT',
+                   'ASSIGNED_SCORE', 'APPROX_ANS', 'EXACT_ANS');
+     my $i=0;
+     my %fwd_awards = map { ($_,$i++) } @awards;
+     my $max=scalar(@awards);
+     @awards=reverse(@awards);
+     $i=0;
+     my %rev_awards = map { ($_,$i++) } @awards;
+ sub awarddetail_to_awarded {
+     my ($awarddetail) = @_;
+     if ($awarddetail eq 'EXACT_ANS'
+ 	|| $awarddetail eq 'APPROX_ANS') {
+ 	return 1;
+     }
+     return 0;
+ }
+ sub hide_award {
+     my ($award) = @_;
+     if (&Apache::lonhomework::show_no_problem_status()) {
+ 	return 1;
+     }
+     if ($award =~
+ 	/^(?:EXACT_ANS|APPROX_ANS|SUBMITTED|SUBMITTED_CREDIT|ANONYMOUS|ANONYMOUS_CREDIT|ASSIGNED_SCORE|INCORRECT)/) {
+ 	return 1;
+     }
+     return 0;
  }
  sub finalizeawards {
-   my $result='';
+     my ($awardref,$msgref,$nameref,$reverse,$final_scantron)=@_;
-   my $award;
+     my $result;
-   if ($#_ == '-1') { $result = "NO_RESPONSE"; }
+     if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
-   if ($result eq '' ) {
+     if ($result eq '' ) {
-     my $blankcount;
+ 	my $blankcount;
-     foreach $award (@_) {
+ 	foreach my $award (@$awardref) {
-       if ($award eq '') {
+ 	    if ($award eq '') {
- 	$result='MISSING_ANSWER';
+ 		$result='MISSING_ANSWER';
- 	$blankcount++;
+ 		$blankcount++;
-       }
+ 	    }
-     }
+ 	}
-     if ($blankcount == ($#_ + 1)) { $result = 'NO_RESPONSE'; }
+ 	if ($blankcount == ($#$awardref + 1)) {
-   }
+ 	    return ('NO_RESPONSE');
-   if ($result eq '' ) {
+ 	}
-     foreach $award (@_) { if ($award eq 'MISSING_ANSWER') {$result='MISSING_ANSWER'; last;}}
+     }
-   }
-   if ($result eq '' ) {
+     if ($Apache::lonxml::internal_error) { $result='INTERNAL_ERROR'; }
-     foreach $award (@_) { if ($award eq 'ERROR') {$result='ERROR'; last;}}
-   }
+     if (!$final_scantron && defined($result)) { return ($result); }
-   if ($result eq '' ) {
-     foreach $award (@_) { if ($award eq 'NO_RESPONSE') {$result='NO_RESPONSE'; last;} }
+     # if in scantron mode, if the award for any response is
-   }
+     # assigned score, then the part gets an assigned score
-   if ($result eq '' ) {
+     if ($final_scantron
-     foreach $award (@_) { if ($award eq 'TOO_LONG') {$result='TOO_LONG'; last;}}
+ 	&& grep {$_ eq 'ASSIGNED_SCORE'} (@$awardref)) {
-   }
+ 	return ('ASSIGNED_SCORE');
-   if ($result eq '' ) {
+     }
-     foreach $award (@_) {
-       if ($award eq 'UNIT_FAIL' ||
+     # if in scantron mode, if the award for any response is
- 	  $award eq 'NO_UNIT' ||
+     # correct and there are non-correct responses,
- 	  $award eq 'UNIT_NOTNEEDED') {
+     # then the part gets an assigned score
- 	$result=$award; last;
+     if ($final_scantron
-       }
+ 	&& (grep { $_ eq 'EXACT_ANS' ||
-     }
+ 		   $_ eq 'APPROX_ANS'  } (@$awardref))
-   }
+ 	&& (grep { $_ ne 'EXACT_ANS' &&
-   if ($result eq '' ) {
+ 		   $_ ne 'APPROX_ANS'  } (@$awardref))) {
-     foreach $award (@_) {
+ 	return ('ASSIGNED_SCORE');
-       if ($award eq 'WANTED_NUMERIC' ||
+     }
- 	  $award eq 'BAD_FORMULA') {$result=$award; last;}
+     # these awards are ordered from most important error through best correct
-     }
+     my $awards = (!$reverse) ? \%fwd_awards : \%rev_awards ;
-   }
-   if ($result eq '' ) {
+     my $best = $max;
-     foreach $award (@_) { if ($award eq 'SIG_FAIL') {$result=$award; last;} }
+     my $j=0;
-   }
+     my $which;
-   if ($result eq '' ) {
+     foreach my $award (@$awardref) {
-     foreach $award (@_) { if ($award eq 'INCORRECT') {$result=$award; last;} }
+ 	if ($awards->{$award} < $best) {
-   }
+ 	    $best  = $awards->{$award};
-   if ($result eq '' ) {
+ 	    $which = $j;
-       foreach $award (@_) { if ($award eq 'MISORDERED_RANK') {$result=$award; last;} }
+ 	}
-   }
+ 	$j++;
-   if ($result eq '' ) {
+     }
-       foreach $award (@_) { if ($award eq 'INVALID_FILETYPE') {$result=$award; last;} }
-   }
+     # if at least one response item is set to include lenient grading
-   if ($result eq '' ) {
+     # and that item is partially correct then overall award reflects
-     foreach $award (@_) { if ($award eq 'DRAFT') {$result=$award; last;} }
+     # that, unless an award for one of the other response items does
-   }
+     # not fall within the basic awards for correct or incorrect.
-   if ($result eq '' ) {
+     if ($Apache::inputtags::leniency) {
-     foreach $award (@_) { if ($award eq 'SUBMITTED') {$result=$award; last;} }
+         if (($$awardref[$which] eq 'INCORRECT')
-   }
+             && (grep { $_ eq 'EXACT_ANS' ||
-   if ($result eq '' ) {
+                        $_ eq 'APPROX_ANS' ||
-     foreach $award (@_) { if ($award eq 'ASSIGNED_SCORE') {$result=$award; last;} }
+                        $_ eq 'ASSIGNED_SCORE' } (@$awardref))
-   }
+             && !((grep { $_ ne 'INCORRECT' &&
-   if ($result eq '' ) {
+                          $_ ne 'EXACT_ANS' &&
-     foreach $award (@_) { if ($award eq 'APPROX_ANS') {$result=$award; last;} }
+                          $_ ne 'APPROX_ANS' &&
-   }
+                          $_ ne 'ASSIGNED_SCORE' } (@$awardref)))) {
-   if ($result eq '' ) { $result='EXACT_ANS'; }
+             return ('ASSIGNED_SCORE');
-   return $result
+         }
+     }
+     if (defined($which)) {
+ 	if (ref($nameref)) {
+ 	    return ($$awardref[$which],$$msgref[$which],$$nameref[$which]);
+ 	} else {
+ 	    return ($$awardref[$which],$$msgref[$which]);
+ 	}
+     }
+     return ('ERROR',undef);
+ }
  }
  sub decideoutput {
-   my ($award,$solved,$previous,$target)=@_;
+     my ($award,$awarded,$awardmsg,$solved,$previous,$target,$nocorrect,$tdclass)=@_;
-   my $message='';
-   my $button=0;
+     my $message='';
-   my $previousmsg;
+     my $button=0;
-   my $bgcolor='orange';
+     my $previousmsg;
-   my %possiblecolors =
+     my $css_class='orange';
-       ( 'correct' => '#aaffaa',
+     my $added_computer_text=0;
- 	'charged_try' => '#ffaaaa',
+     my %possible_class =
- 	'not_charged_try' => '#ffffaa',
+ 	( 'correct'         => 'LC_answer_correct',
- 	'no_message' => '#fffff',
+ 	  'charged_try'     => 'LC_answer_charged_try',
-       );
+ 	  'not_charged_try' => 'LC_answer_not_charged_try',
-   if ($previous) { $previousmsg='You have entered that answer before'; }
+ 	  'no_grade'        => 'LC_answer_no_grade',
+ 	  'no_message'      => 'LC_no_message',
-   if      ($solved =~ /^correct/) {
+ 	  );
-       if ($award eq 'ASSIGNED_SCORE') {
- 	  $message = "A score has been assigned.";
+     my $part = $Apache::inputtags::part;
-       } else {
+     my $tohandgrade = &Apache::lonnet::EXT("resource.$part.handgrade");
- 	  if ($target eq 'tex') {
+     my $handgrade = ('yes' eq lc($tohandgrade));
- 	      $message = '\textbf{You are correct}.';
+ #
- 	  } else {
+ # Should "Computer's Answer" be displayed?
- 	      $message = "<b>You are correct.</b>";
+ # Should not be displayed if still answerable,
- 	  }
+ # if the problem is handgraded,
-           unless ($ENV{'course.'.
+ # or if the problem does not give a correct answer
- 			   $ENV{'request.course.id'}.
+ #
- 			   '.disable_receipt_display'} eq 'yes') {
- 	      $message.='<br />Your receipt is '.&Apache::lonnet::receipt().
+     my $computer = ($handgrade || $nocorrect)? ''
- 		  &Apache::loncommon::help_open_topic('Receipt');
+ 	                       : " ".&mt("Computer's answer now shown above.");
- 	  }
+     &Apache::lonxml::debug("handgrade has :$handgrade:");
-       }
-       $bgcolor=$possiblecolors{'correct'};
+     if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
-       $button=0;
-       $previousmsg='';
+     if ($solved =~ /^correct/) {
-   } elsif ($solved =~ /^excused/) {
+         $css_class=$possible_class{'correct'};
-       $message = "<b>You are excused from the problem.</b>";
+ 	$message=&mt('You are correct.');
-       $bgcolor=$possiblecolors{'charged_try'};
+ 	if ($awarded < 1 && $awarded > 0) {
-       $button=0;
+ 	    $message=&mt('You are partially correct.');
-       $previousmsg='';
+ 	    $css_class=$possible_class{'not_charged_try'};
-   } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
+ 	} elsif ($awarded < 1) {
-       if ($solved =~ /^incorrect/ || $solved eq '') {
+ 	    $message=&mt('Incorrect.');
- 	  $message = "Incorrect";
+ 	    $css_class=$possible_class{'charged_try'};
- 	  $bgcolor=$possiblecolors{'charged_try'};
+ 	}
- 	  $button=1;
+ 	if ($handgrade ||
-       } else {
+             ($env{'request.filename'}=~/\/res\/lib\/templates\/(examupload|DropBox).problem$/)) {
- 	  $message = "<b>You are correct.</b>";
+ 	    $message = &mt("A score has been assigned.");
-           unless ($ENV{'course.'.
+ 	    $added_computer_text=1;
- 			   $ENV{'request.course.id'}.
+ 	} else {
- 			   '.disable_receipt_display'} eq 'yes') {
+ 	    if ($target eq 'tex') {
-               $message.='<br />Your receipt is '.&Apache::lonnet::receipt().
+ 		$message = '\textbf{'.$message.'}';
- 		  &Apache::loncommon::help_open_topic('Receipt');
+ 	    } else {
- 	  }
+ 		$message = "<b>".$message."</b>";
- 	  $bgcolor=$possiblecolors{'correct'};
+ 		$message.= $computer;
- 	  $button=0;
+ 	    }
- 	  $previousmsg='';
+ 	    $added_computer_text=1;
-       }
+ 	    if ($awarded > 0) {
-   } elsif ($award eq 'NO_RESPONSE') {
+ 		my ($symb) = &Apache::lonnet::whichuser();
-       $message = '';
+ 		if (($symb ne '')
-       $bgcolor=$possiblecolors{'no_feedback'};
+ 		    &&
-       $button=1;
+ 		    ($env{'course.'.$env{'request.course.id'}.
-   } elsif ($award eq 'MISSING_ANSWER') {
+ 			      '.disable_receipt_display'} ne 'yes') &&
-       $message = 'Some parts were not submitted';
+                     ($Apache::lonhomework::type ne 'practice')) {
-       $bgcolor=$possiblecolors{'not_charged_try'};
+ 		    $message.=(($target eq 'web')?'<br />':' ').
-       $button = 1;
+ 			&mt('Your receipt no. is [_1]',
-   } elsif ($award eq 'ERROR') {
+ 			    (&Apache::lonnet::receipt($Apache::inputtags::part).
-       $message = 'An error occured while grading your answer.';
+ 			     (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
-       $bgcolor=$possiblecolors{'not_charged_try'};
+ 		}
-       $button = 1;
+ 	    }
-   } elsif ($award eq 'TOO_LONG') {
+ 	}
-       $message = "The submitted answer was too long.";
+         if ($awarded >= 1) {
-       $bgcolor=$possiblecolors{'not_charged_try'};
+             $button=0;
-       $button=1;
+         } elsif (&Apache::lonnet::EXT("resource.$part.retrypartial") !~/^1|on|yes$/i) {
-   } elsif ($award eq 'WANTED_NUMERIC') {
+             $button=0;
-       $message = "This question expects a numeric answer";
+         } else {
-       $bgcolor=$possiblecolors{'not_charged_try'};
+             $button=1;
-       $button=1;
+         }
-   } elsif ($award eq 'MISORDERED_RANK') {
+ 	$previousmsg='';
-       $message = 'You have provided an invalid ranking, please refer to '.
+     } elsif ($solved =~ /^excused/) {
- 	  &Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems').'.';
+ 	if ($target eq 'tex') {
-       $bgcolor=$possiblecolors{'not_charged_try'};
+ 	    $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
-       $button=1;
+ 	} else {
-   } elsif ($award eq 'INVALID_FILETYPE') {
+ 	    $message = "<b>".&mt('You are excused from the problem.')."</b>";
-       $message = 'The filetype extension of the file you uploaded is not allowed.';
+ 	}
-       $bgcolor=$possiblecolors{'not_charged_try'};
+ 	$css_class=$possible_class{'charged_try'};
-       $button=1;
+ 	$button=0;
-   } elsif ($award eq 'SIG_FAIL') {
+ 	$previousmsg='';
-       $message = "Please adjust significant figures.";# you provided %s significant figures";
+     } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
-       $bgcolor=$possiblecolors{'not_charged_try'};
+ 	if ($solved =~ /^incorrect/ || $solved eq '') {
-       $button=1;
+ 	    $message = &mt("Incorrect").".";
-   } elsif ($award eq 'UNIT_FAIL') {
+ 	    $css_class=$possible_class{'charged_try'};
-       $message = "Units incorrect. ".
+ 	    $button=1;
-        &Apache::loncommon::help_open_topic('Physical_Units'); #Computer reads units as %s";
+ 	} else {
-       $bgcolor=$possiblecolors{'not_charged_try'};
+ 	    if ($target eq 'tex') {
-       $button=1;
+ 		$message = '\textbf{'.&mt('You are correct.').'}';
-   } elsif ($award eq 'UNIT_NOTNEEDED') {
+ 	    } else {
-       $message = "Only a number required.";# Computer reads units of %s";
+ 		$message = "<b>".&mt('You are correct.')."</b>";
-       $bgcolor=$possiblecolors{'not_charged_try'};
+ 		$message.= $computer;
-       $button=1;
+ 	    }
-   } elsif ($award eq 'NO_UNIT') {
+ 	    $added_computer_text=1;
-       $message = "Units required".
+ 	    if  ($awarded > 0
- 	  &Apache::loncommon::help_open_topic('Physical_Units');
+ 		 && $env{'course.'.
-       $bgcolor=$possiblecolors{'not_charged_try'};
+ 			     $env{'request.course.id'}.
-       $button=1;
+ 			     '.disable_receipt_display'} ne 'yes') {
-   } elsif ($award eq 'BAD_FORMULA') {
+ 		$message.=(($target eq 'web')?'<br />':' ').
-       $message = "Unable to understand formula";
+ 		    &mt('Your receipt is [_1]',
-       $bgcolor=$possiblecolors{'not_charged_try'};
+ 			(&Apache::lonnet::receipt($Apache::inputtags::part).
-       $button=1;
+ 			 (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
-   } elsif ($award eq 'INCORRECT') {
+ 	    }
-       $message = "Incorrect";
+ 	    $css_class=$possible_class{'correct'};
-       $bgcolor=$possiblecolors{'charged_try'};
+ 	    $button=0;
-       $button=1;
+ 	    $previousmsg='';
-   } elsif ($award eq 'SUBMITTED') {
+ 	}
-       $message = "Your submission has been recorded.";
+     } elsif ($award eq 'NO_RESPONSE') {
-       $bgcolor=$possiblecolors{'correct'};
+ 	$message = '';
-       $button=1;
+ 	$css_class=$possible_class{'no_feedback'};
-   } elsif ($award eq 'DRAFT') {
+ 	$button=1;
-       $message = "A draft copy has been saved.";
+     } elsif ($award eq 'EXTRA_ANSWER') {
-       $bgcolor=$possiblecolors{'not_charged_try'};
+ 	$message = &mt('Some extra items were submitted.');
-       $button=1;
+ 	$css_class=$possible_class{'not_charged_try'};
-   } elsif ($award eq 'ASSIGNED_SCORE') {
+ 	$button = 1;
-       $message = "A score has been assigned.";
+     } elsif ($award eq 'MISSING_ANSWER') {
-       $bgcolor=$possiblecolors{'correct'};
+ 	$message = &mt('Some items were not submitted.');
-       $button=0;
+         if ($target ne 'tex') {
-   } else {
+            $message .= &Apache::loncommon::help_open_topic('Some_Items_Were_Not_Submitted');
-       $message = "Unknown message: $award";
+         }
-       $button=1;
+ 	$css_class=$possible_class{'not_charged_try'};
-   }
+ 	$button = 1;
-   if (lc($Apache::lonhomework::problemstatus) eq 'no') {
+     } elsif ($award eq 'WRONG_NUMBOXESCHECKED') {
-       $message = "Answer Submitted";
+         $message = &mt('Number of boxes checked outside permissible range (either too few or too many).');
-       $bgcolor=$possiblecolors{'correct'};
+         if ($target ne 'tex') {
-       $button=1;
+            $message .= &Apache::loncommon::help_open_topic('Wrong_Num_Boxes_Checked');
-   }
+         }
-   return ($button,$bgcolor,$message,$previousmsg);
+         $css_class=$possible_class{'not_charged_try'};
+         $button = 1;
+     } elsif ($award eq 'ERROR') {
+ 	$message = &mt('An error occurred while grading your answer.');
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button = 1;
+     } elsif ($award eq 'TOO_LONG') {
+ 	$message = &mt("The submitted answer was too long.");
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'WANTED_NUMERIC') {
+ 	$message = &mt("This question expects a numeric answer.");
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'MISORDERED_RANK') {
+         $message = &mt('You have provided an invalid ranking.');
+         if ($target ne 'tex') {
+             $message.=' '.&mt('Please refer to [_1]',&Apache::loncommon::help_open_topic('Ranking_Problems',&mt('help on ranking problems')));
+         }
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'EXCESS_FILESIZE') {
+         $message = &mt("Submission won't be graded. The combined size of submitted files exceeded the amount allowed.");
+         $css_class=$possible_class{'not_charged_try'};
+         $button=1;
+     } elsif ($award eq 'FILENAME_INUSE') {
+         $message = &mt('You have already uploaded a file with that filename.');
+         if ($target eq 'tex') {
+             $message.= "\\\\\n";
+         } else {
+             $message .= '<br />';
+         }
+         $message .= &mt('Please use a different filename.');
+         $css_class=$possible_class{'not_charged_try'};
+         $button=1;
+     } elsif ($award eq 'INVALID_FILETYPE') {
+ 	$message = &mt("Submission won't be graded. The type of file submitted is not allowed.");
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'SIG_FAIL') {
+ 	my ($used,$min,$max)=split(':',$awardmsg);
+ 	my $word = ($used < $min) ? 'more' : 'fewer';
+ 	$message = &mt("Submission not graded. Use $word digits.",$used);
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
+ 	$message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
+ 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'UNIT_INVALID_STUDENT') {
+ 	$message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
+ 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
+ 	$message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
+ 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'UNIT_NOTNEEDED') {
+ 	$message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'NO_UNIT') {
+ 	$message = &mt("Units required").'.';
+ 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'COMMA_FAIL') {
+ 	$message = &mt("Proper comma separation is required").'.';
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'BAD_FORMULA') {
+ 	$message = &mt("Unable to understand formula").'.';
+         if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Formula_Answers')};
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'NOT_FUNCTION') {
+         $message = &mt("Not a function").'.';
+         $css_class=$possible_class{'not_charged_try'};
+         $button=1;
+     } elsif ($award eq 'WRONG_FORMAT') {
+         $message = &mt("Wrong format").'.';
+         $css_class=$possible_class{'not_charged_try'};
+         $button=1;
+      } elsif ($award eq 'INTERNAL_ERROR') {
+         $message = &mt("An internal error occurred while processing your answer. Please try again later.");
+         $css_class=$possible_class{'not_charged_try'};
+         $button=1;
+     } elsif ($award eq 'INCORRECT') {
+ 	$message = &mt("Incorrect").'.';
+ 	$css_class=$possible_class{'charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'SUBMITTED') {
+ 	$message = &mt("Your submission has been recorded.");
+ 	$css_class=$possible_class{'no_grade'};
+ 	$button=1;
+     } elsif ($award eq 'SUBMITTED_CREDIT') {
+         $message = &mt("Your submission has been recorded, and credit awarded.");
+         $css_class=$possible_class{'correct'};
+         $button=1;
+     } elsif ($award eq 'ANONYMOUS') {
+         $message = &mt("Your anonymous submission has been recorded.");
+         $css_class=$possible_class{'no_grade'};
+         $button=1;
+     } elsif ($award eq 'ANONYMOUS_CREDIT') {
+         $message = &mt("Your anonymous submission has been recorded, and credit awarded.");
+         $css_class=$possible_class{'correct'};
+         $button=1;
+     } elsif ($award eq 'DRAFT') {
+ 	$message = &mt("Copy saved but not submitted.");
+ 	$css_class=$possible_class{'not_charged_try'};
+ 	$button=1;
+     } elsif ($award eq 'ASSIGNED_SCORE') {
+ 	$message = &mt("A score has been assigned.");
+ 	$css_class=$possible_class{'correct'};
+ 	$button=0;
+     } elsif ($award eq '') {
+ 	if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
+ 	    $message = &mt("Nothing submitted.");
+ 	    $css_class=$possible_class{'charged_try'};
+ 	} else {
+ 	    $css_class=$possible_class{'not_charged_try'};
+ 	}
+ 	$button=1;
+     } else {
+ 	$message = &mt("Unknown message").": $award";
+ 	$button=1;
+     }
+     my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
+     foreach my $resid(@Apache::inputtags::response){
+         if ($Apache::lonhomework::history{"resource.$part.$resid.handback"}) {
+             if ($target eq 'tex') {
+                 $message.= "\\\\\n";
+             } else {
+                 $message.='<br />';
+             }
+ 	    my @files = split(/\s*,\s*/,
+ 			      $Apache::lonhomework::history{"resource.$part.$resid.handback"});
+ 	    my $file_msg;
+ 	    foreach my $file (@files) {
+                 if ($target eq 'tex') {
+                     $file_msg.= "\\\\\n".$file;
+                 } else {
+                     $file_msg.= '<br /><a href="/uploaded/'."$domain/$user".'/'.$file.'">'.$file.'</a>';
+                 }
+ 	    }
+ 	    $message .= &mt('Returned file(s): [_1]',$file_msg);
+             if ($target eq 'tex') {
+                 $message.= "\\\\\n";
+             } else {
+                 $message.='<br />';
+             }
+ 	}
+     }
+     if (&Apache::lonhomework::hide_problem_status()
+ 	&& $Apache::inputtags::status[-1] ne 'SHOW_ANSWER'
+ 	&& &hide_award($award)) {
+         $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
+         my @interval= &Apache::lonnet::EXT("resource.$part.interval");
+         if ($interval[0] =~ /\d+/) {
+             my $first_access=&Apache::lonnet::get_first_access($interval[1]);
+             if (defined($first_access)) {
+                 my $due_date= &Apache::lonnet::EXT("resource.$part.duedate");
+                 unless (($due_date) && ($due_date < $first_access + $interval[0])) {
+                     $message = &mt("Answer Submitted: Your final submission will be graded when the time limit is reached.");
+                 }
+             }
+         }
+ 	$css_class=$possible_class{'no_grade'};
+ 	$button=1;
+     }
+     if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
+ 	!$added_computer_text && $target ne 'tex') {
+ 	$message.= $computer;
+ 	$added_computer_text=1;
+     }
+     if ($Apache::lonhomework::type eq 'practice') {
+        if ($target eq 'web') {
+            $message .= '<br />';
+        } else {
+            $message .= ' ';
+        }
+        $message.=&mt('Submissions to practice problems are not permanently recorded.');
+     }
+     return ($button,$css_class,$message,$previousmsg);
+ }
+ sub markup_unit {
+     my ($unit,$target)=@_;
+     if ($target eq 'tex') {
+ 	return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
+     } else {
+ 	return "<tt>".$unit."</tt>";
+     }
  }
  sub removealldata {
- Line 464  sub removealldata {
+ Line 1366  sub removealldata {
      }
  }
- sub setgradedata {
+ sub hidealldata {
-   my ($award,$id,$previously_used) = @_;
+     my ($id)=@_;
-   # if the student already has it correct, don't modify the status
+     foreach my $key (keys(%Apache::lonhomework::results)) {
-   if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
+ 	if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
-       $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
+ 	    &Apache::lonxml::debug("Hidding $key");
-     $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
+ 	    my $newkey=$key;
-     return '';
+ 	    $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
-   } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
+ 	    $Apache::lonhomework::results{$newkey}=
-        /^correct/ || $Apache::lonhomework::scantronmode ||
+ 		$Apache::lonhomework::results{$key};
- 	    lc($Apache::lonhomework::problemstatus) eq 'no') {
+ 	    delete($Apache::lonhomework::results{$key});
-     #handle assignment of tries and solved status
+ 	}
-     my $solvemsg;
-     if ($Apache::lonhomework::scantronmode) {
- 	$solvemsg='correct_by_scantron';
-     } else {
- 	$solvemsg='correct_by_student';
      }
-     if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
+ }
-       $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
+ sub setgradedata {
+     my ($award,$msg,$id,$previously_used) = @_;
+     if ($Apache::lonhomework::scantronmode &&
+ 	&Apache::lonnet::validCODE($env{'form.CODE'})) {
+ 	$Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
+     } elsif ($Apache::lonhomework::scantronmode &&
+ 	     $env{'form.CODE'} eq '' &&
+ 	     $Apache::lonhomework::history{"resource.CODE"} ne '') {
+ 	$Apache::lonhomework::results{"resource.CODE"}='';
      }
-     if ( $award eq 'ASSIGNED_SCORE') {
- 	$Apache::lonhomework::results{"resource.$id.tries"} =
+     if (!$Apache::lonhomework::scantronmode &&
- 	    $Apache::lonhomework::history{"resource.$id.tries"} + 1;
+ 	$Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
- 	$Apache::lonhomework::results{"resource.$id.solved"} =
+ 	$Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
- 	    $solvemsg;
+ 	$Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
- 	my $numawards=scalar(@Apache::inputtags::response);
+ 	return '';
- 	$Apache::lonhomework::results{"resource.$id.awarded"} = 0;
+     } elsif ( $Apache::lonhomework::history{"resource.$id.awarded"} < 1
- 	foreach my $res (@Apache::inputtags::response) {
+ 	      || $Apache::lonhomework::scantronmode
- 	    $Apache::lonhomework::results{"resource.$id.awarded"}+=
+ 	      || &Apache::lonhomework::hide_problem_status()  ) {
- 	       $Apache::lonhomework::results{"resource.$id.$res.awarded"};
+         # the student doesn't already have it correct,
- 	}
+ 	# or we are in a mode (scantron orno problem status) where a correct
- 	if ($numawards > 0) {
+         # can become incorrect
- 	    $Apache::lonhomework::results{"resource.$id.awarded"}/=
+ 	# handle assignment of tries and solved status
- 		$numawards;
+ 	my $solvemsg;
- 	}
+ 	if ($Apache::lonhomework::scantronmode) {
-     } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
+ 	    $solvemsg='correct_by_scantron';
-       $Apache::lonhomework::results{"resource.$id.tries"} =
+ 	} else {
- 	$Apache::lonhomework::history{"resource.$id.tries"} + 1;
+ 	    $solvemsg='correct_by_student';
-       $Apache::lonhomework::results{"resource.$id.solved"} =
+ 	}
- 	$solvemsg;
+ 	if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
-       $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
+ 	    $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
-     } elsif ( $award eq 'INCORRECT' ) {
+ 	}
-       $Apache::lonhomework::results{"resource.$id.tries"} =
+ 	if ( $award eq 'ASSIGNED_SCORE') {
- 	$Apache::lonhomework::history{"resource.$id.tries"} + 1;
+ 	    $Apache::lonhomework::results{"resource.$id.tries"} =
-       $Apache::lonhomework::results{"resource.$id.solved"} =
+ 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
- 	'incorrect_attempted'
+ 	    $Apache::lonhomework::results{"resource.$id.solved"} =
-     } elsif ( $award eq 'SUBMITTED' ) {
+ 		$solvemsg;
-       $Apache::lonhomework::results{"resource.$id.tries"} =
+ 	    my $numawards=scalar(@Apache::inputtags::response);
- 	$Apache::lonhomework::history{"resource.$id.tries"} + 1;
+ 	    $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
-       $Apache::lonhomework::results{"resource.$id.solved"} =
+ 	    foreach my $res (@Apache::inputtags::response) {
- 	'ungraded_attempted';
+ 		if (defined($Apache::lonhomework::results{"resource.$id.$res.awarded"})) {
-     } elsif ( $award eq 'DRAFT' ) {
+ 		    $Apache::lonhomework::results{"resource.$id.awarded"}+=
-       $Apache::lonhomework::results{"resource.$id.solved"} = '';
+ 			$Apache::lonhomework::results{"resource.$id.$res.awarded"};
-     } elsif ( $award eq 'NO_RESPONSE' ) {
+ 		} else {
- 	#no real response so delete any data that got stored
+ 		    $Apache::lonhomework::results{"resource.$id.awarded"}+=
+ 			&awarddetail_to_awarded($Apache::lonhomework::results{"resource.$id.$res.awarddetail"});
+ 		}
+ 	    }
+ 	    if ($numawards > 0) {
+ 		$Apache::lonhomework::results{"resource.$id.awarded"}/=
+ 		    $numawards;
+ 	    }
+ 	} elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
+ 	    $Apache::lonhomework::results{"resource.$id.tries"} =
+ 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
+ 	    $Apache::lonhomework::results{"resource.$id.solved"} =
+ 		$solvemsg;
+ 	    $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
+         } elsif ( $award eq 'SUBMITTED_CREDIT' ) {
+             $Apache::lonhomework::results{"resource.$id.tries"} =
+                 $Apache::lonhomework::history{"resource.$id.tries"} + 1;
+             $Apache::lonhomework::results{"resource.$id.solved"} =
+                 'credit_attempted';
+             $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
+         }  elsif ( $award eq 'ANONYMOUS_CREDIT' ) {
+             $Apache::lonhomework::results{"resource.$id.tries"} =
+                 $Apache::lonhomework::history{"resource.$id.tries"} + 1;
+             $Apache::lonhomework::results{"resource.$id.solved"} =
+                 'credit_attempted';
+             $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
+ 	} elsif ( $award eq 'INCORRECT' ) {
+ 	    $Apache::lonhomework::results{"resource.$id.tries"} =
+ 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
+ 	    if (&Apache::lonhomework::hide_problem_status()
+ 		|| $Apache::lonhomework::scantronmode) {
+ 		$Apache::lonhomework::results{"resource.$id.awarded"} = 0;
+ 	    }
+ 	    $Apache::lonhomework::results{"resource.$id.solved"} =
+ 		'incorrect_attempted';
+ 	} elsif ( $award eq 'SUBMITTED' ) {
+ 	    $Apache::lonhomework::results{"resource.$id.tries"} =
+ 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
+ 	    $Apache::lonhomework::results{"resource.$id.solved"} =
+ 		'ungraded_attempted';
+         }  elsif ( $award eq 'ANONYMOUS' ) {
+             $Apache::lonhomework::results{"resource.$id.tries"} =
+                 $Apache::lonhomework::history{"resource.$id.tries"} + 1;
+             $Apache::lonhomework::results{"resource.$id.solved"} =
+                 'ungraded_attempted';
+ 	} elsif ( $award eq 'DRAFT' ) {
+ 	    $Apache::lonhomework::results{"resource.$id.solved"} = '';
+ 	} elsif ( $award eq 'NO_RESPONSE' ) {
+ 	    #no real response so delete any data that got stored
+ 	    &removealldata($id);
+ 	    return '';
+ 	} else {
+ 	    $Apache::lonhomework::results{"resource.$id.solved"} =
+ 		'incorrect_attempted';
+ 	    if (&Apache::lonhomework::show_no_problem_status()
+ 		|| $Apache::lonhomework::scantronmode) {
+ 		$Apache::lonhomework::results{"resource.$id.tries"} =
+ 		    $Apache::lonhomework::history{"resource.$id.tries"} + 1;
+ 		$Apache::lonhomework::results{"resource.$id.awarded"} = 0;
+ 	    }
+ 	    if (&Apache::lonhomework::show_some_problem_status()) {
+ 		# clear out the awarded if they had gotten it wrong/right
+ 		# and are now in an error mode
+ 		$Apache::lonhomework::results{"resource.$id.awarded"} = '';
+ 	    }
+ 	}
+ 	if (defined($msg)) {
+ 	    $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
+ 	}
+ 	# did either of the overall awards chage? If so ignore the
+ 	# previous check
+ 	if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
+ 	     $Apache::lonhomework::history{"resource.$id.awarded"}) &&
+ 	    ($Apache::lonhomework::results{"resource.$id.solved"} eq
+ 	     $Apache::lonhomework::history{"resource.$id.solved"})) {
+ 	    # check if this was a previous submission if it was delete the
+ 	    # unneeded data and update the previously_used attribute
+ 	    if ( $previously_used eq 'PREVIOUSLY_USED') {
+ 		if (&Apache::lonhomework::show_problem_status()) {
+ 		    delete($Apache::lonhomework::results{"resource.$id.tries"});
+ 		    $Apache::lonhomework::results{"resource.$id.previous"} = '1';
+ 		}
+ 	    } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
+ 		#delete all data as they student didn't do anything, but save
+ 		#the list of collaborators.
+ 		&removealldata($id);
+ 		#and since they didn't do anything we were never here
+ 		return '';
+ 	    } else {
+ 		$Apache::lonhomework::results{"resource.$id.previous"} = '0';
+ 	    }
+ 	}
+     } elsif ( $Apache::lonhomework::history{"resource.$id.awarded"} == 1 ) {
+ 	#delete all data as they student already has it correct
  	&removealldata($id);
+ 	#and since they didn't do anything we were never here
  	return '';
-     } else {
-       $Apache::lonhomework::results{"resource.$id.solved"} =
- 	'incorrect_attempted';
-       if (lc($Apache::lonhomework::problemstatus) eq 'no') {
- 	  $Apache::lonhomework::results{"resource.$id.tries"} =
- 	      $Apache::lonhomework::history{"resource.$id.tries"} + 1;
-       }
-     }
-     # check if this was a previous submission if it was delete the
-     # unneeded data and update the previously_used attribute
-     if ( $previously_used eq 'PREVIOUSLY_USED') {
- 	if (lc($Apache::lonhomework::problemstatus) ne 'no') {
- 	    delete($Apache::lonhomework::results{"resource.$id.tries"});
- 	    $Apache::lonhomework::results{"resource.$id.previous"} = '1';
- 	}
-     } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
-       #delete all data as they student didn't do anything, but save
-       #the list of collaborators.
-       &removealldata($id);
-       #and since they didn't do anything we were never here
-       return '';
-     } else {
-       $Apache::lonhomework::results{"resource.$id.previous"} = '0';
      }
-   } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
+     $Apache::lonhomework::results{"resource.$id.award"} = $award;
- 	    /^correct/ ) {
+     if ($award eq 'SUBMITTED') {
-       #delete all data as they student already has it correct
+ 	&Apache::response::add_to_gradingqueue();
-       &removealldata($id);
+     }
-       #and since they didn't do anything we were never here
+     $Apache::lonhomework::results{"resource.$id.type"} = $Apache::lonhomework::type;
-       return '';
+     $Apache::lonhomework::results{"resource.$id.duedate"} = &Apache::lonnet::EXT("resource.$id.duedate");
-   }
+     $Apache::lonhomework::results{"resource.$id.hinttries"} = &Apache::lonnet::EXT("resource.$id.hinttries");
-   $Apache::lonhomework::results{"resource.$id.award"} = $award;
+     $Apache::lonhomework::results{"resource.$id.version"} = &Apache::lonnet::usedversion();
+     $Apache::lonhomework::results{"resource.$id.maxtries"} = &Apache::lonnet::EXT("resource.$id.maxtries");
+ }
+ sub find_which_previous {
+     my ($version) = @_;
+     my $part = $Apache::inputtags::part;
+     my (@previous_version);
+     foreach my $resp (@Apache::inputtags::response) {
+ 	my $key = "$version:resource.$part.$resp.submission";
+ 	my $submission = $Apache::lonhomework::history{$key};
+ 	my %previous = &Apache::response::check_for_previous($submission,
+ 							     $part,$resp,
+ 							     $version);
+ 	push(@previous_version,$previous{'version'});
+     }
+     return &previous_match(\@previous_version,
+ 			   scalar(@Apache::inputtags::response));
+ }
+ sub previous_match {
+     my ($previous_array,$count) = @_;
+     my $match = 0;
+     my @matches;
+     foreach my $versionar (@$previous_array) {
+ 	foreach my $version (@$versionar) {
+ 	    $matches[$version]++;
+ 	}
+     }
+     my $which=0;
+     foreach my $elem (@matches) {
+ 	if ($elem eq $count) {
+ 	    $match=1;
+ 	    last;
+ 	}
+ 	$which++;
+     }
+     return ($match,$which);
  }
  sub grade {
-   my ($target) = @_;
+     my ($target) = @_;
-   my $id = $Apache::inputtags::part;
+     my $id = $Apache::inputtags::part;
-   my $response='';
+     my $response='';
-   if ( defined $ENV{'form.submitted'}) {
+     if ( defined $env{'form.submitted'}) {
-     my @awards = ();
+ 	my (@awards,@msgs);
-     foreach $response (@Apache::inputtags::response) {
+ 	foreach $response (@Apache::inputtags::response) {
-       &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
+ 	    &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
-       my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
+ 	    my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
-       &Apache::lonxml::debug("keeping $value from $response for $id");
+ 	    &Apache::lonxml::debug("keeping $value from $response for $id");
-       push (@awards,$value);
+ 	    push (@awards,$value);
-     }
+ 	    $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
-     my $finalaward = &finalizeawards(@awards);
+ 	    &Apache::lonxml::debug("got message $value from $response for $id");
-     my $previously_used;
+ 	    push (@msgs,$value);
-     if ( $#Apache::inputtags::previous eq $#awards ) {
+ 	}
- 	my $match=0;
+ 	my ($finalaward,$msg) =
- 	my @matches;
+ 	    &finalizeawards(\@awards,\@msgs,undef,undef,
- 	foreach my $versionar (@Apache::inputtags::previous_version) {
+ 			    $Apache::lonhomework::scantronmode);
- 	    foreach my $version (@$versionar) {
+ 	my $previously_used;
- 		$matches[$version]++;
+ 	if ( $#Apache::inputtags::previous eq $#awards ) {
- 	    }
+ 	    my ($match) =
- 	}
+ 		&previous_match(\@Apache::inputtags::previous_version,
- 	foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
+ 				scalar(@Apache::inputtags::response));
- 	if ($match) {
- 	    $previously_used = 'PREVIOUSLY_LAST';
+ 	    if ($match) {
- 	    foreach my $value (@Apache::inputtags::previous) {
+ 		$previously_used = 'PREVIOUSLY_LAST';
- 		if ($value eq 'PREVIOUSLY_USED' ) {
+ 		foreach my $value (@Apache::inputtags::previous) {
- 		    $previously_used = $value;
+ 		    if ($value eq 'PREVIOUSLY_USED' ) {
- 		    last;
+ 			$previously_used = $value;
+ 			last;
+ 		    }
  		}
  	    }
  	}
+ 	&Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
+ 	&setgradedata($finalaward,$msg,$id,$previously_used);
      }
-     &Apache::lonxml::debug("final award $finalaward, $previously_used");
+     return '';
-     &setgradedata($finalaward,$id,$previously_used);
-   }
-   return '';
  }
- sub gradestatus {
+ sub get_grade_messages {
-   my ($id,$target) = @_;
+     my ($id,$prefix,$target,$status,$nocorrect,$tdclass) = @_;
-   my $showbutton = 1;
+ # nocorrect suppresses "Computer's answer now shown above"
-   my $bgcolor = '';
+     my ($message,$latemessage,$trystr,$previousmsg);
-   my $message = '';
+     my $showbutton = 1;
-   my $latemessage = '';
-   my $trystr='';
+     my $award = $Apache::lonhomework::history{"$prefix.award"};
-   my $button='';
+     my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
-   my $previousmsg='';
+     my $solved = $Apache::lonhomework::history{"$prefix.solved"};
+     my $previous = $Apache::lonhomework::history{"$prefix.previous"};
-   my $status = $Apache::inputtags::status['-1'];
+     my $awardmsg = $Apache::lonhomework::history{"$prefix.awardmsg"};
-   &Apache::lonxml::debug("gradestatus has :$status:");
+     &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
-   if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE') {
+     if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
-     my $award = $Apache::lonhomework::history{"resource.$id.award"};
+ 	&Apache::lonxml::debug('Getting message');
-     my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
+ 	($showbutton,my $css_class,$message,$previousmsg) =
-     my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
+ 	    &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
-     &Apache::lonxml::debug("Found Award |$award|$solved|");
+ 			  $target,(($status eq 'CAN_ANSWER') || $nocorrect),$tdclass);
-     if ( $award ne '' ) {
+ 	if ($target eq 'tex') {
-       &Apache::lonxml::debug('Getting message');
+ 	    $message='\vskip 2 mm '.$message.' ';
-       ($showbutton,$bgcolor,$message,$previousmsg) =
+ 	} else {
- 	&decideoutput($award,$solved,$previous,$target);
+ 	    $message="<td class=\"$tdclass $css_class\">$message</td>";
-       if ($target eq 'tex') {
+ 	    if ($previousmsg) {
- 	$message=' '.$message.' ';
+ 		$previousmsg="<td class=\"$tdclass LC_answer_previous\">$previousmsg</td>";
-       } else {
+ 	    }
- 	$message="<td bgcolor=\"$bgcolor\">$message</td>";
- 	if ($previousmsg) {
- 	  $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
  	}
-       }
      }
-     my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
+     my $tries = $Apache::lonhomework::history{"$prefix.tries"};
      my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
      &Apache::lonxml::debug("got maxtries of :$maxtries:");
+     #if tries are set to negative turn off the Tries/Button and messages
+     if (defined($maxtries) && $maxtries < 0) { return ''; }
      if ( $tries eq '' ) { $tries = '0'; }
      if ( $maxtries eq '' ) { $maxtries = '2'; }
      if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
-     if ( $showbutton ) {
+     my $tries_text= &get_tries_text();
-       if ($target eq 'tex') {
+     if ($showbutton) {
- 	  if ($ENV{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam') {
+ 	if ($target eq 'tex') {
- 	      $trystr = ' {\vskip 1 mm \small \textit{Tries} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
+ 	    if ($env{'request.state'} ne "construct"
- 	  } else {
+ 		&& $Apache::lonhomework::type ne 'exam'
- 	      $trystr = '\vskip 0 mm ';
+ 		&& $env{'form.suppress_tries'} ne 'yes') {
- 	  }
+ 		$trystr ='{\vskip 1 mm \small '
-       } else {
+                         .&mt('[_1]'.$tries_text.'[_2] [_3]'
-          $trystr = "<td>Tries $tries/$maxtries</td>";
+ 				,'\textit{','}',$tries.'/'.$maxtries )
-       }
+                         .'} \vskip 2 mm';
-     }
+ 	    } else {
-     if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
+ 		$trystr = '\vskip 0 mm ';
-     if ( $showbutton ) {
+ 	    }
-       if ($target ne 'tex') {
+ 	} else {
-         $button = '<br /><input type="submit" name="submit" value="Submit Answer" />';
+ 	    my $trial =$tries;
-       }
+ 	    if ($Apache::lonhomework::parsing_a_task) {
-     }
+ 	    } elsif($env{'request.state'} ne 'construct') {
-     if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
+ 		$trial.="/".&Apache::lonhtmlcommon::direct_parm_link($maxtries,$env{'request.symb'},'maxtries',$id,$target);
-       #last submissions was after due date
+ 	    } else {
-       if ($target eq 'tex') {
+ 		if (defined($Apache::inputtags::params{'maxtries'})) {
- 	  $latemessage=' The last submission was after the Due Date ';
+ 		    $trial.="/".$Apache::inputtags::params{'maxtries'};
-       } else {
+ 		}
-         $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
+ 	    }
-       }
+ 	    $trystr = '<td class="'.$tdclass.'"><span class="LC_nobreak">'.&mt($tries_text.' [_1]',$trial).'</span></td>';
-     }
+ 	}
-   }
+     }
-   my $output= $previousmsg.$latemessage.$message.$trystr;
-   if ($output =~ /^\s*$/) {
+     if ($Apache::lonhomework::history{"$prefix.afterduedate"}) {
-     return $button;
+ 	#last submissions was after due date
-   } else {
+ 	$latemessage=&mt(' The last submission was after the Due Date ');;
-     if ($target eq 'tex') {
+ 	if ($target eq 'web') {
-       return $button.' \vskip 0 mm '.$output.' ';
+ 	    $latemessage='<td class="'.$tdclass.' LC_answer_late">'.$latemessage.'</td>';
+ 	}
+     }
+     return ($previousmsg,$latemessage,$message,$trystr,$showbutton);
+ }
+ sub gradestatus {
+     my ($id,$target,$no_previous) = @_;
+     my $showbutton = 1;
+     my $message = '';
+     my $latemessage = '';
+     my $trystr='';
+     my $button='';
+     my $previousmsg='';
+     my $tdclass='';
+     my $status = $Apache::inputtags::status['-1'];
+     &Apache::lonxml::debug("gradestatus has :$status:");
+     if ( $status ne 'CLOSED'
+ 	 && $status ne 'UNAVAILABLE'
+ 	 && $status ne 'INVALID_ACCESS'
+ 	 && $status ne 'NEEDS_CHECKIN'
+ 	 && $status ne 'NOT_IN_A_SLOT'
+          && $status ne 'RESERVABLE'
+          && $status ne 'RESERVABLE_LATER'
+          && $status ne 'NOTRESERVABLE'
+          && $status ne 'NEED_DIFFERENT_IP') {
+ 	if ($status eq 'SHOW_ANSWER') {
+             $showbutton = 0;
+         }
+         unless (($status eq 'SHOW_ANSWER') || ($status eq 'CANNOT_ANSWER')) {
+             if ($target ne 'tex') {
+                 $tdclass = 'LC_status_submit_'.$id;
+             }
+         }
+ 	($previousmsg,$latemessage,$message,$trystr) =
+ 	    &get_grade_messages($id,"resource.$id",$target,$status,
+ 				$showbutton,$tdclass);
+ 	if ($status eq 'CANNOT_ANSWER') {
+ 	    $showbutton = 0;
+ 	}
+ 	if ( $status eq 'SHOW_ANSWER') {
+ 	    undef($previousmsg);
+ 	}
+ 	if ( $showbutton ) {
+ 	    if ($target ne 'tex') {
+ 		$button =
+             '<input onmouseup="javascript:setSubmittedPart(\''.$id.'\');this.form.action+=\'#'.&escape($id).'\';"
+                     type="submit" name="submit_'.$id.'" id="submit_'.$id.'" class="LC_hwk_submit"
+                     value="'.&mt('Submit Answer').'" />&nbsp;'.
+                     '<div id="msg_submit_'.$id.'" style="display:none">'.
+                     &mt('Processing your submission ...').'</div>';
+ 	    }
+ 	}
+     }
+     my $output= $previousmsg.$latemessage.$message.$trystr;
+     if ($output =~ /^\s*$/) {
+ 	return $button;
+     } else {
+ 	if ($target eq 'tex') {
+ 	    return $button.' \vskip 0 mm '.$output.' ';
+ 	} else {
+ 	    $output =
+ 		'<table><tr><td>'.$button.'</td>'.$output;
+ 	    if (!$no_previous) {
+ 		$output.='<td class="'.$tdclass.'">'.&previous_tries($id,$target).'</td>';
+ 	    }
+ 	    $output.= '</tr></table>';
+ 	    return $output;
+ 	}
+     }
+ }
+ sub previous_tries {
+     my ($id,$target) = @_;
+     my $output;
+     my $status = $Apache::inputtags::status['-1'];
+     my $count;
+     my %count_lookup;
+     my ($lastrndseed,$lasttype);
+     my $numstamps = 0;
+     foreach my $i (1..$Apache::lonhomework::history{'version'}) {
+ 	my $prefix = $i.":resource.$id";
+         my $is_anon;
+         my $curr_type = $Apache::lonhomework::history{"$prefix.type"};
+         if (defined($env{'form.grade_symb'})) {
+             if (($curr_type eq 'anonsurvey') || ($curr_type eq 'anonsurveycred')) {
+                 $is_anon = 1;
+             }
+         }
+ 	next if (!exists($Apache::lonhomework::history{"$prefix.award"}));
+ 	$count++;
+ 	$count_lookup{$i} = $count;
+         my $curr_rndseed = $Apache::lonhomework::history{"$prefix.rndseed"};
+ 	my ($previousmsg,$latemessage,$message,$trystr);
+ 	($previousmsg,$latemessage,$message,$trystr) =
+ 	    &get_grade_messages($id,"$prefix",$target,$status);
+ 	if ($previousmsg ne '') {
+ 	    my ($match,$which) = &find_which_previous($i);
+ 	    $message=$previousmsg;
+ 	    my $previous = $count_lookup{$which};
+ 	    $message =~ s{(</td>)}{ as submission \# $previous $1};
+ 	} elsif ($Apache::lonhomework::history{"$prefix.tries"}) {
+ 	    if (!(&Apache::lonhomework::hide_problem_status()
+ 		  && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER')
+ 		&& $Apache::lonhomework::history{"$prefix.solved"} =~/^correct/
+ 		) {
+                 my $txt_correct = &mt('Correct');
+                 my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
+                 if ($awarded < 1 && $awarded > 0) {
+                     $txt_correct=&mt('Partially Correct');
+                 } elsif ($awarded < 1) {
+                     if ($awarded eq '') {
+                         $txt_correct='';
+                     } else {
+                         $txt_correct=&mt('Incorrect');
+                     }
+                 }
+ 		$message =~ s{(<td.*?>)(.*?)(</td>)}
+                              {$1 <strong>$txt_correct</strong>. $3}s;
+ 	    }
+             my $trystr = "(".&mt('Try [_1]',$Apache::lonhomework::history{"$prefix.tries"}).")";
+             if (($curr_rndseed ne '') &&  ($lastrndseed ne '')) {
+                 if (($curr_rndseed ne $lastrndseed) &&
+                     (($curr_type eq 'randomizetry') || ($lasttype eq 'randomizetry'))) {
+                     $trystr .= '<br /><span style="color: green; white-space: nowrap; font-style: italic; font-weight: bold; font-size: 80%;">'.&mt('New problem variation this try.').'</span>';
+                 }
+             }
+ 	    $message =~ s{(</td>)}{ $trystr $1};
+ 	}
+ 	my ($class) = ($message =~ m{<td.*class="([^"]*)"}); #"
+ 	$message =~ s{(<td.*?>)}{<td>};
+ 	$output .= '<tr class="'.$class.'">'.
+ 	           '<td align="center">'.$count.'</td>'.$message;
+         if ((!$is_anon) && ($Apache::lonhomework::history{"$prefix.tries"}) &&
+             ($Apache::lonhomework::history{"$prefix.award"} ne 'ASSIGNED_SCORE') &&
+             ($Apache::lonhomework::history{$i.':timestamp'})) {
+             $output .= '<td>'.&Apache::lonlocal::locallocaltime(
+                              $Apache::lonhomework::history{$i.':timestamp'}).'</td>';
+             $numstamps ++;
+         } else {
+             $output .= '<td></td>';
+         }
+ 	foreach my $resid (@Apache::inputtags::response) {
+ 	    my $prefix = $prefix.".$resid";
+ 	    if (exists($Apache::lonhomework::history{"$prefix.submission"})) {
+ 		my $submission =
+ 		    $Apache::inputtags::submission_display{"$prefix.submission"};
+ 		if (!defined($submission)) {
+ 		    $submission =
+ 			$Apache::lonhomework::history{"$prefix.submission"};
+ 		}
+                 if ($is_anon) {
+                     $output.='<td>'.&mt('(only shown to submitter)').'</td>';
+                 } else {
+ 		    $output.='<td>'.$submission.'</td>';
+                 }
+ 	    } else {
+ 		$output.='<td></td>';
+ 	    }
+ 	}
+ 	$output.=&Apache::loncommon::end_data_table_row()."\n";
+         $lastrndseed = $curr_rndseed;
+         $lasttype = $curr_type;
+     }
+     return if ($output eq '');
+     my $headers = '<tr>'.
+                   '<th>'.&mt('Submission #').'</th>'.
+                   '<th>'.&mt('Try').'</th><th>';
+     if ($numstamps) {
+         $headers .= &mt('When');
+     }
+     $headers .= '</th>';
+     my $colspan = scalar(@Apache::inputtags::response);
+     if ($colspan > 1) {
+         $headers .= '<th colspan="'.$colspan.'">';
      } else {
-       return $button.'<table><tr>'.$output.'</tr></table>';
+         $headers .= '<th>';
      }
-   }
+     $headers .= &mt('Submitted Answer').'</th></tr>';
+     $output ='<table class="LC_prior_tries">'.$headers.$output.'</table>';
+     my $tries_text = &get_tries_text('link');
+     my $prefix = $env{'form.request.prefix'};
+     $prefix =~ tr{.}{_};
+     my $function_name = "LONCAPA_previous_tries_".$prefix.
+ 	$Apache::lonxml::curdepth.'_'.$env{'form.counter'};
+     my $result = &Apache::loncommon::modal_adhoc_window($function_name,420,410,$output,&mt($tries_text))."<br />";
+     return $result;
  }
+ sub get_tries_text {
+     my ($context) = @_;
+     my $tries_text;
+     if ($context eq 'link') {
+         $tries_text = 'Previous Tries';
+     } else {
+         $tries_text = 'Tries';
+     }
+     if ( $Apache::lonhomework::type eq 'survey' ||
+          $Apache::lonhomework::type eq 'surveycred' ||
+          $Apache::lonhomework::type eq 'anonsurvey' ||
+          $Apache::lonhomework::type eq 'anonsurveycred' ||
+          $Apache::lonhomework::parsing_a_task) {
+         if ($context eq 'link') {
+             $tries_text = 'Previous Submissions';
+         } else {
+             $tries_text = 'Submissions';
+         }
+     }
+     return $tries_text;
+ }
+ sub spelling_languages {
+     my %langchoices;
+     foreach my $id (&Apache::loncommon::languageids()) {
+         my $code = &Apache::loncommon::supportedlanguagecode($id);
+         if ($code ne '') {
+             $langchoices{$code} =  &Apache::loncommon::plainlanguagedescription($id);
+         }
+     }
+     my @spelllangs = ('none');
+     foreach my $code ('en','de','he','es','fr','pt','tr') {
+         push(@spelllangs,[$code,$langchoices{$code}]);
+     }
+     return \@spelllangs;
+ }
 ;
  __END__
+ =pod
+ =back
+ =cut

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Removed from v.1.109
changed lines
	Added in v.1.337