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

Diff for /loncom/homework/caparesponse/caparesponse.pm between versions 1.108 and 1.183

version 1.108, 2003/08/21 17:33:22 version 1.183, 2005/12/01 22:30:55
Line 29 Line 29
 package Apache::caparesponse;  package Apache::caparesponse;
 use strict;  use strict;
 use capa;  use capa;
   use Apache::lonlocal;
   use Apache::lonnet;
   
 BEGIN {  BEGIN {
     &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse','formularesponse'));      &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse','formularesponse'));
 }  }
   
   my %answer;
   my $cur_name;
   sub start_answer {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       $cur_name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
       if ($cur_name =~ /^\s*$/) { $cur_name = $Apache::lonxml::curdepth; }
       my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
       if (!defined($type) && $tagstack->[-2] eq 'answergroup') {
    $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
       }
       if (!defined($type)) { $type = 'ordered' };
       $answer{$cur_name}= { 'type' => $type,
     'answers' => [] };
       return $result;
   }
   
   sub end_answer {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       undef($cur_name);
       return $result;
   }
   
   sub start_answergroup {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       my $id = $Apache::inputtags::response[-1];
       my $dis = &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
       if (defined($dis)) { $Apache::inputtags::answertxt{$id}=$dis; }
       return $result;
   }
   
   sub end_answergroup {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       return $result;
   }
   
   sub start_value {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ( $target eq 'web' || $target eq 'tex' ||
    $target eq 'grade' || $target eq 'webgrade' ||
    $target eq 'answer' || $target eq 'analyze' ) {
    my $bodytext = &Apache::lonxml::get_all_text("/value",$parser,$style);
    $bodytext = &Apache::run::evaluate($bodytext,$safeeval,
      $$parstack[-1]);
    push(@{ $answer{$cur_name}{'answers'} },$bodytext);
       }
       return $result;
   }
   
   sub end_value {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       return $result;
   }
   
   sub start_array {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ( $target eq 'web' || $target eq 'tex' ||
    $target eq 'grade' || $target eq 'webgrade' ||
    $target eq 'answer' || $target eq 'analyze' ) {
    my $bodytext = &Apache::lonxml::get_all_text("/array",$parser,$style);
    my @values = &Apache::run::evaluate($bodytext,$safeeval,
       $$parstack[-1]);
    push(@{ $answer{$cur_name}{'answers'} },@values);
       }
       return $result;
   }
   
   sub end_array {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       return $result;
   }
   
   sub start_unit {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       return $result;
   }
   
   sub end_unit {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       return $result;
   }
   
 sub start_numericalresponse {  sub start_numericalresponse {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       &Apache::lonxml::register('Apache::caparesponse',('answer','answergroup','value','array','unit'));
     my $id = &Apache::response::start_response($parstack,$safeeval);      my $id = &Apache::response::start_response($parstack,$safeeval);
     my $result;      my $result;
       undef(%answer);
       undef(%{$safeeval->varglob('LONCAPA::CAPAresponse_args')});
     if ($target eq 'edit') {      if ($target eq 'edit') {
  $result.=&Apache::edit::tag_start($target,$token);   $result.=&Apache::edit::tag_start($target,$token);
  $result.=&Apache::edit::text_arg('Answer:','answer',$token);   $result.=&Apache::edit::text_arg('Answer:','answer',$token);
  if ($token->[1] eq 'numericalresponse') {   if ($token->[1] eq 'numericalresponse') {
       $result.=&Apache::edit::text_arg('Incorrect Answers:','incorrect',
        $token).
    &Apache::loncommon::help_open_topic('numerical_wrong_answers');
     $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).      $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
  &Apache::loncommon::help_open_topic('Physical_Units');   &Apache::loncommon::help_open_topic('Physical_Units');
     $result.=&Apache::edit::text_arg('Format:','format',$token,4).      $result.=&Apache::edit::text_arg('Format:','format',$token,4).
  &Apache::loncommon::help_open_topic('Numerical_Response_Format');   &Apache::loncommon::help_open_topic('Numerical_Response_Format');
  } elsif ($token->[1] eq 'stringresponse') {  
     $result.=&Apache::edit::select_arg('Type:','type',  
  [['cs','Case Sensitive'],['ci','Case Insensitive'],  
   ['mc','Case Insensitive, Any Order']],$token);  
  } elsif ($token->[1] eq 'formularesponse') {   } elsif ($token->[1] eq 'formularesponse') {
     $result.=&Apache::edit::text_arg('Sample Points:','samples',      $result.=&Apache::edit::text_arg('Sample Points:','samples',
      $token,40).       $token,40).
Line 61  sub start_numericalresponse { Line 156  sub start_numericalresponse {
  if ($token->[1] eq 'numericalresponse') {   if ($token->[1] eq 'numericalresponse') {
     $constructtag=&Apache::edit::get_new_args($token,$parstack,      $constructtag=&Apache::edit::get_new_args($token,$parstack,
       $safeeval,'answer',        $safeeval,'answer',
       'unit','format');         'incorrect','unit',
  } elsif ($token->[1] eq 'stringresponse') {        'format');
     $constructtag=&Apache::edit::get_new_args($token,$parstack,  
       $safeeval,'answer',  
       'type');  
  } elsif ($token->[1] eq 'formularesponse') {   } elsif ($token->[1] eq 'formularesponse') {
     $constructtag=&Apache::edit::get_new_args($token,$parstack,      $constructtag=&Apache::edit::get_new_args($token,$parstack,
       $safeeval,'answer',        $safeeval,'answer',
Line 89  sub start_numericalresponse { Line 181  sub start_numericalresponse {
     $safeeval);      $safeeval);
     if ($unit =~ /\S/) { $result.=" (in $unit) "; }      if ($unit =~ /\S/) { $result.=" (in $unit) "; }
  }   }
    if (  &Apache::response::show_answer() ) {
       my $answertxt;
       my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
    $safeeval);
       my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
    $safeeval);
       my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
       $safeeval);
       for (my $i=0; $i <= $#answers; $i++) {
    my $answer=$answers[$i];
    my $format;
    if ($#formats > 0) {
       $format=$formats[$i];
    } else {
       $format=$formats[0];
    }
    if ($unit=~/\$/) { $format="\$".$format; $unit=~s/\$//g; }
    if ($unit=~/\,/) { $format="\,".$format; $unit=~s/\,//g; }
    my $formatted=&format_number($answer,$format,$target,
        $safeeval);
    $answertxt.=$formatted.',';
       }
       chop $answertxt;
       if ($target eq 'web') {
    $answertxt.=" $unit ";
       }
       $Apache::inputtags::answertxt{$id}=$answertxt;
    }
     }      }
     return $result;      return $result;
 }  }
   
   sub check_submission {
       my ($response,$partid,$id,$tag,$parstack,$safeeval,$ignore_sig)=@_;
       my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
       $$args_ref{'response'}=$response;
       my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
       
       foreach my $arg ('type','tol','sig','format','unit','calc',
        'samples') {
    $$args_ref{$arg}=
       &Apache::lonxml::get_param($arg,$parstack,$safeeval);
       }
       foreach my $key (keys(%Apache::inputtags::params)) {
    $$args_ref{$key}=$Apache::inputtags::params{$key};
       }
       
       #no way to enter units, with radio buttons
       if ($Apache::lonhomework::type eq 'exam' ||
    lc($hideunit) eq "yes") {
    delete($$args_ref{'unit'});
       }
       #sig fig don't make much sense either
       if (($Apache::lonhomework::type eq 'exam' ||
    &Apache::response::submitted('scantron') ||
    $ignore_sig) &&
    $tag eq 'numericalresponse') {
    delete($$args_ref{'sig'});
       }
       
       if ($tag eq 'formularesponse') {
    $$args_ref{'type'}='fml';
       } elsif ($tag eq 'numericalresponse') {
    $$args_ref{'type'}='float';
       }
       my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
       &Apache::lonxml::debug('answer is'.join(':',@answer));
       if (@answer && defined($answer[0])) {
    $answer{'INTERNAL'}= {'type' => 'ordered',
         'answers' => \@answer };
       }
       #FIXME would be nice if we could save name so we know who graded him
       #correct
       my (%results,@final_awards,@final_msgs,@names);
       foreach my $name (keys(%answer)) {
    &Apache::lonxml::debug(" doing $name with ".join(':',@{ $answer{$name}{'answers'} }));
    @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=@{ $answer{$name}{'answers'} };
    my ($result,@msgs) = 
       &Apache::run::run("&caparesponse_check_list()",$safeeval);
    &Apache::lonxml::debug('msgs are '.join(':',@msgs));
    my ($awards)=split(/:/,$result);
    my @awards= split(/,/,$awards);
    my ($ad, $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
    $results{$name}= [$ad,$msg];
    push(@final_awards,$ad);
    push(@final_msgs,$msg);
    push(@names,$name);
       }
       my ($ad, $msg, $name) = &Apache::inputtags::finalizeawards(\@final_awards,
          \@final_msgs,
          \@names,1);
       return($ad,$msg);
   }
   
 sub end_numericalresponse {  sub end_numericalresponse {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $increment=1;      my $increment=1;
Line 100  sub end_numericalresponse { Line 282  sub end_numericalresponse {
     if (!$Apache::lonxml::default_homework_loaded) {      if (!$Apache::lonxml::default_homework_loaded) {
  &Apache::lonxml::default_homework_load($safeeval);   &Apache::lonxml::default_homework_load($safeeval);
     }      }
     if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {      my $partid = $Apache::inputtags::part;
  &Apache::response::setup_params($$tagstack[-1]);      my $id = $Apache::inputtags::response[-1];
  $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);      my $tag;
  my $partid = $Apache::inputtags::part;      $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
  my $id = $Apache::inputtags::response['-1'];      if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
       if ( $target eq 'grade' && &Apache::response::submitted() ) {
    &Apache::response::setup_params($tag,$safeeval);
  if ($Apache::lonhomework::type eq 'exam' &&    if ($Apache::lonhomework::type eq 'exam' && 
     ($$tagstack[-1] eq 'formularesponse' ||      $tag eq 'formularesponse') {
      $$tagstack[-1] eq 'stringresponse')) {  
     $increment=&Apache::response::scored_response($partid,$id);      $increment=&Apache::response::scored_response($partid,$id);
  } else {   } else {
     my $response = &Apache::response::getresponse();      my $response = &Apache::response::getresponse();
     if ( $response =~ /[^\s]/) {      if ( $response =~ /[^\s]/) {
  my $ad;  
  my %previous = &Apache::response::check_for_previous($response,$partid,$id);   my %previous = &Apache::response::check_for_previous($response,$partid,$id);
  $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;  
  &Apache::lonxml::debug("submitted a $response<br>\n");   &Apache::lonxml::debug("submitted a $response<br>\n");
  &Apache::lonxml::debug($$parstack[-1] . "\n<br>");   &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
   
  if ($ENV{'form.submitted'} eq 'scantron') {   if ( &Apache::response::submitted('scantron')) {
     my $number_of_bubbles = 8;#default values for number of bubbles      my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
     my (@formats)=&Apache::lonxml::get_param_var('format',      if (!$number_of_bubbles) { $number_of_bubbles=8; }
  $parstack,$safeeval);      my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
     my (@answers)=&Apache::lonxml::get_param_var('answer',      my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
  $parstack,$safeeval);      my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
     my @values=&make_numerical_bubbles($number_of_bubbles,$target,      if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
        $answers[0],$formats[0]);      my ($values,$display)=&make_numerical_bubbles($number_of_bubbles,$target,$answers[0],$formats[0],\@incorrect,$safeeval);
     $response=$values[$response];      $response=$values->[$response];
  } else {   }
     $response =~ s/\\/\\\\/g;   $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
     $response =~ s/\'/\\\'/g;   my ($ad,$msg)=&check_submission($response,$partid,$id,
    $tag,$parstack,$safeeval);
   
    &Apache::lonxml::debug('ad is'.$ad);
    if ($ad eq 'SIG_FAIL') {
       my ($sig_u,$sig_l)=
    &get_sigrange($Apache::inputtags::params{'sig'});
       $msg=join(':',$msg,$sig_l,$sig_u);
       &Apache::lonxml::debug("sigs bad $sig_u $sig_l ".
      $Apache::inputtags::params{'sig'});
  }   }
  &Apache::lonxml::debug("current $response");  
  my $expression="&caparesponse_check_list('".$response."','".  
     $$parstack[-1];  
  my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');  
  #no way to enter units, with radio buttons  
  if ($Apache::lonhomework::type eq 'exam' ||  
     lc($hideunit) eq "yes") {  
     $expression.=';my $unit=undef;';  
  }  
  foreach my $key (keys(%Apache::inputtags::params)) {  
     $expression.= ';my $'. #'  
  $key.'="'.$Apache::inputtags::params{$key}.'"';  
  }  
  if ($$tagstack[-1] eq 'formularesponse') {  
     $expression.=';my $type="fml";';  
  } elsif ($$tagstack[-1] eq 'numericalresponse') {  
     $expression.=';my $type="float";';  
  }  
  $expression.="');";  
  my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);  
  &Apache::lonxml::debug('answer is'.join(':',@answer));  
  @{$safeeval->varglob('CAPARESPONSE_CHECK_LIST_answer')}=@answer;  
   
  $result = &Apache::run::run($expression,$safeeval);  
  my ($awards) = split /:/ , $result;  
  ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);  
  &Apache::lonxml::debug("$expression");  
  &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");   &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
    if ($Apache::lonhomework::type eq 'survey' &&
       ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
        $ad eq 'EXACT_ANS')) {
       $ad='SUBMITTED';
    }
  &Apache::response::handle_previous(\%previous,$ad);   &Apache::response::handle_previous(\%previous,$ad);
  $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;   $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
    $Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg;
  $result='';   $result='';
     }      }
  }   }
Line 169  sub end_numericalresponse { Line 338  sub end_numericalresponse {
      $safeeval);       $safeeval);
  my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};   my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
  my $status = $Apache::inputtags::status['-1'];   my $status = $Apache::inputtags::status['-1'];
  if (   ($award =~ /^correct/  
                 && lc($Apache::lonhomework::problemstatus) ne 'no')  
              || $status eq "SHOW_ANSWER"  
              || $ENV{'form.texaward'} eq 'SHOW_ANSWER') {  
     my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,  
  $safeeval);  
     my $unit=&Apache::lonxml::get_param_var('unit',$parstack,  
     $safeeval);  
     if ($target eq 'web') {  
  $result="<br />The correct answer is ";  
     } elsif ($target eq 'tex') {  
  if ($ENV{'form.texaward'} eq 'SHOW_ANSWER') {  
     $result='\vskip 0 mm The correct answer is \\texttt{ ';  
  }  
     }  
     for (my $i=0; $i <= $#answers; $i++) {  
  my $answer=$answers[$i];  
  my $format;  
  if ($#formats > 0) {  
     $format=$formats[$i];  
  } else {  
     $format=$formats[0];  
  }  
  my $formatted;  
  if ((defined($format)) && ($format ne '')) {  
     &Apache::lonxml::debug("formatting with :$format: answer :$answer:");  
     $formatted=sprintf('%.'.$format,$answer).',';  
  } else {  
     &Apache::lonxml::debug("no format answer :$answer:");  
     $formatted="$answer,";  
  }  
  if ($ENV{'form.texaward'} eq 'SHOW_ANSWER') {  
     $result.=$formatted;  
  }  
  if ($target eq 'tex') {  
     $formatted='';  
     #$formatted=&Apache::lonxml::latex_special_symbols($formatted);  
  }  
  $result.=$formatted;  
     }  
     chop $result;  
     if ($target eq 'web') {  
  $result.=" $unit.<br />";  
     } elsif ($target eq 'tex') {  
  if ($ENV{'form.texaward'} eq 'SHOW_ANSWER') {  
     $result.=&Apache::lonxml::latex_special_symbols($unit);  
     $result.="}. \\vskip 0 mm ";  
  }  
     }  
  }  
  if ($Apache::lonhomework::type eq 'exam') {   if ($Apache::lonhomework::type eq 'exam') {
     my $number_of_bubbles = 8; #default values for number of bubbles      my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
       if ($Apache::inputtags::params{'numbubbles'}) {
    $number_of_bubbles = $Apache::inputtags::params{'numbubbles'};
       }
       if (!$number_of_bubbles) { $number_of_bubbles=8; }
       
     my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,      my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
  $safeeval);   $safeeval);
     my $unit=&Apache::lonxml::get_param_var('unit',$parstack,      my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
     $safeeval);      $safeeval);
     my @bubble_values=&make_numerical_bubbles($number_of_bubbles,      my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
       $target,$answers[0],      if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
       $formats[0]);      my ($bubble_values,$bubble_display)=
    &make_numerical_bubbles($number_of_bubbles,
    $target,$answers[0],
    $formats[0],\@incorrect,$safeeval);
     my @alphabet=('A'..'Z');      my @alphabet=('A'..'Z');
     my $id=$Apache::inputtags::response[-1];  
     if ($target eq 'web') {      if ($target eq 'web') {
  if ($$tagstack[-1] eq 'numericalresponse') {   if ($tag eq 'numericalresponse') {
     if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}      if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
     $result.= '<table border="1"><tr>';      $result.= '<table border="1"><tr>';
       my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
     for (my $ind=0;$ind<$number_of_bubbles;$ind++) {      for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
    my $checked='';
    if ($previous eq $bubble_values->[$ind]) {
       $checked=" checked='on' ";
    }
  $result.='<td><input type="radio" name="HWVAL_'.$id.   $result.='<td><input type="radio" name="HWVAL_'.$id.
     '" value="'.$bubble_values[$ind].'"><b>'.      '" value="'.$bubble_values->[$ind].'" '.$checked
  $alphabet[$ind].'</b>: '.      .' /><b>'.$alphabet[$ind].'</b>: '.
     $bubble_values[$ind].'</td>';      $bubble_display->[$ind].'</td>';
     }      }
     $result.='</tr></table>';      $result.='</tr></table>';
  } elsif ($$tagstack[-1] eq 'formularesponse') {   } elsif ($tag eq 'formularesponse') {
     $result.= '<br /><br /><font color="red">      $result.= '<br /><br /><font color="red">
                            <textarea name="HWVAL_'.$id.'" rows="4" cols="50">                             <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
                            </textarea></font> <br /><br />';                             </textarea></font> <br /><br />';
Line 250  sub end_numericalresponse { Line 381  sub end_numericalresponse {
  if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {   if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
     $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';      $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
  }   }
  if ($$tagstack[-1] eq 'numericalresponse') {   if ($tag eq 'numericalresponse') {
     my ($celllength,$number_of_tables,@table_range)=      my ($celllength,$number_of_tables,@table_range)=
  &get_table_sizes($formats[0],$number_of_bubbles);   &get_table_sizes($number_of_bubbles,$bubble_display);
     my $j=0;      my $j=0;
     my $cou=0;      my $cou=0;
     $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';      $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
     for (my $i=0;$i<$number_of_tables;$i++) {      for (my $i=0;$i<$number_of_tables;$i++) {
  $result.='\vskip -1 mm \noindent \begin{tabular}{';   $result.='\vskip -1 mm \noindent \setlength{\tabcolsep}{2 mm}\begin{tabular}{';
  for (my $ind=0;$ind<$table_range[$j];$ind++) {   for (my $ind=0;$ind<$table_range[$j];$ind++) {
     $result.='lp{'.$celllength.' mm}';      $result.='p{3 mm}p{'.$celllength.' mm}';
  }   }
  $result.='}';   $result.='}';
  for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {   for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
     $result.='\hskip -3 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -2 mm & {\small '.$bubble_values[$ind].'} ';      $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_display->[$ind].'} ';
     if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}      if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
  }   }
  $cou += $table_range[$j];   $cou += $table_range[$j];
Line 286  sub end_numericalresponse { Line 417  sub end_numericalresponse {
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result.='</td></tr>'.&Apache::edit::end_table;   $result.='</td></tr>'.&Apache::edit::end_table;
     } elsif ($target eq 'answer' || $target eq 'analyze') {      } elsif ($target eq 'answer' || $target eq 'analyze') {
    my $part_id="$partid.$id";
  my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";  
  if ($target eq 'analyze') {   if ($target eq 'analyze') {
     push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);      push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
     $Apache::lonhomework::analyze{"$part_id.type"} = $$tagstack[-1];      $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
       my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
       if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
       push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
       &Apache::response::check_if_computed($token,$parstack,
    $safeeval,'answer');
    }
    if (scalar(@$tagstack)) {
       &Apache::response::setup_params($tag,$safeeval);
  }   }
  &Apache::response::setup_params($$tagstack[-1]);  
  my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);   my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
  my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);   my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
  my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);   my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
  my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);   my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
   
  if ($target eq 'answer') {   if ($target eq 'answer') {
     $result.=&Apache::response::answer_header($$tagstack[-1]);      $result.=&Apache::response::answer_header($tag);
  }   }
    my ($sigline,$tolline);
  for(my $i=0;$i<=$#answers;$i++) {   for(my $i=0;$i<=$#answers;$i++) {
     my $ans=$answers[$i];      my $ans=$answers[$i];
     my $fmt=$formats[0];      my $fmt=$formats[0];
Line 313  sub end_numericalresponse { Line 451  sub end_numericalresponse {
     if ($Apache::inputtags::params{'sig'}) {      if ($Apache::inputtags::params{'sig'}) {
  ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});   ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
     }      }
     if ($fmt && $$tagstack[-1] eq 'numericalresponse') {      if ($fmt && $tag eq 'numericalresponse') {
  $ans = sprintf('%.'.$fmt,$ans);   $fmt=~s/e/E/g;
  if ($high) {   if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
     $high=sprintf('%.'.$fmt,$high);   if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
     $low =sprintf('%.'.$fmt,$low);   $ans = &format_number($ans,$fmt,$target,$safeeval);
  }   #if ($high) {
    #    $high=&format_number($high,$fmt,$target,$safeeval);
    #    $low =&format_number($low,$fmt,$target,$safeeval);
    #}
     }      }
     if ($target eq 'answer') {      if ($target eq 'answer') {
  if ($high && $$tagstack[-1] eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }   if ($high && $tag eq 'numericalresponse') {
  if ($sighigh && $$tagstack[-1] eq 'numericalresponse') {      $ans.=' ['.$low.','.$high.']';
     if ($ENV{'form.answer_output_mode'} eq 'tex') {      $tolline .= "[$low, $high]";
    }
    if (defined($sighigh) && $tag eq 'numericalresponse') {
       if ($env{'form.answer_output_mode'} eq 'tex') {
  $ans.= " Sig $siglow - $sighigh";   $ans.= " Sig $siglow - $sighigh";
     } else {      } else {
  $ans.= " Sig <i>$siglow - $sighigh</i>";   $ans.= " Sig <i>$siglow - $sighigh</i>";
    $sigline .= "[$siglow, $sighigh]";
     }      }
  }   }
  $result.=&Apache::response::answer_part($$tagstack[-1],$ans);   $result.=&Apache::response::answer_part($tag,$ans);
     } elsif ($target eq 'analyze') {      } elsif ($target eq 'analyze') {
  push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);   push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
  if ($high) {   if ($high) {
     push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);      push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
     push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);      push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
  }   }
    if ($fmt) {
       push (@{ $Apache::lonhomework::analyze{"$part_id.format"} }, $fmt);
    }
     }      }
  }   }
  if (defined($unit) and ($unit ne '') and  
     $$tagstack[-1] eq 'numericalresponse') {   my @fmt_ans;
     if ($target eq 'answer') {   for(my $i=0;$i<=$#answers;$i++) {
  if ($ENV{'form.answer_output_mode'} eq 'tex') {      my $ans=$answers[$i];
     $result.=&Apache::response::answer_part($$tagstack[-1],      my $fmt=$formats[0];
     " Unit: $unit ");      if (@formats && $#formats) {$fmt=$formats[$i];}
       if ($fmt && $tag eq 'numericalresponse') {
    $fmt=~s/e/E/g;
    if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
    if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
    $ans = &format_number($ans,$fmt,$target,$safeeval);
    if ($fmt=~/\$/ && $unit!~/\$/) { $ans=~s/\$//; }
       }
       push(@fmt_ans,$ans);
    }
    my $response=join(', ',@fmt_ans);
    my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.
     $id.'.turnoffunit');
    if ($unit ne ''  && 
       ! ($Apache::lonhomework::type eq 'exam' ||
          lc($hideunit) eq "yes") )  {
       my $cleanunit=$unit;
       $cleanunit=~s/\$\,//g;
       $response.=" $cleanunit";
    }
   
    my ($ad,$msg)=&check_submission($response,$partid,$id,$tag,
    $parstack,$safeeval);
    if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
       my $error;
       if ($tag eq 'formularesponse') {
    $error=&mt('Computer\'s answer is incorrect ("[_1]").',$response);
       } else {
    # answer failed check if it is sig figs that is failing
    my ($ad,$msg)=&check_submission($response,$partid,$id,
    $tag,$parstack,
    $safeeval,1);
    if ($sigline ne '') {
       $error=&mt('Computer\'s answer is incorrect ("[_1]"). It is likely that the tolerance range [_2] or significant figures [_3] need to be adjusted.',$response,$tolline,$sigline);
  } else {   } else {
     $result.=&Apache::response::answer_part($$tagstack[-1],      $error=&mt('Computer\'s answer is incorrect ("[_1]"). It is likely that the tolerance range [_2] needs to be adjusted.',$response,$tolline);
     "Unit: <b>$unit</b>");  
  }   }
     } elsif ($target eq 'analyze') {  
  push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);  
     }      }
  }      if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
  if ($type || $$tagstack[-1] eq 'stringresponse') {   &Apache::lonxml::error($error);
     my $string='Case Insensitive';      } else {
     if ($type eq 'mc') {   &Apache::lonxml::warning($error);
  $string='Multiple Choice';  
     } elsif ($type eq 'cs') {  
  $string='Case Sensitive';  
     } elsif ($type eq 'ci') {  
  $string='Case Insensitive';  
     } elsif ($type eq 'fml') {  
  $string='Formula';  
     }      }
    }
   
    if (defined($unit) and ($unit ne '') and
       $tag eq 'numericalresponse') {
     if ($target eq 'answer') {      if ($target eq 'answer') {
  if ($ENV{'form.answer_output_mode'} eq 'tex') {   if ($env{'form.answer_output_mode'} eq 'tex') {
     $result.=&Apache::response::answer_part($$tagstack[-1],      $result.=&Apache::response::answer_part($tag,
   "$string");      " Unit: $unit ");
  } else {   } else {
     $result.=&Apache::response::answer_part($$tagstack[-1],      $result.=&Apache::response::answer_part($tag,
     "<b>$string</b>");      "Unit: <b>$unit</b>");
  }   }
     } elsif ($target eq 'analyze') {      } elsif ($target eq 'analyze') {
  push (@{ $Apache::lonhomework::analyze{"$part_id.str_type"} },   push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
       $type);  
     }      }
  }   }
  if ($$tagstack[-1] eq 'formularesponse' && $target eq 'answer') {   if ($tag eq 'formularesponse' && $target eq 'answer') {
     my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);      my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
     $result.=&Apache::response::answer_part($$tagstack[-1],$samples);      $result.=&Apache::response::answer_part($tag,$samples);
  }   }
  if ($target eq 'answer') {   if ($target eq 'answer') {
     $result.=&Apache::response::answer_footer($$tagstack[-1]);      $result.=&Apache::response::answer_footer($tag);
  }   }
     }      }
     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||      if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 
  $target eq 'tex' || $target eq 'analyze') {   $target eq 'tex' || $target eq 'analyze') {
  &Apache::lonxml::increment_counter($increment);   &Apache::lonxml::increment_counter($increment);
     }      }
Line 393  sub end_numericalresponse { Line 567  sub end_numericalresponse {
 }  }
   
 sub get_table_sizes {  sub get_table_sizes {
     my ($format,$number_of_bubbles)=@_;      my ($number_of_bubbles,$rbubble_values)=@_;
     my $max_val = 0;      my $scale=2; #mm for one digit
     if ($format=~m/^(\d+)E([^\d]*)(\d*)$/) {      my $cell_width=0;
  $max_val=$1+$2+4;      foreach my $member (@$rbubble_values) {
    my $cell_width_real=0;
    if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^{(\+|-)?(\d+)}\$?/) {
       $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
    } elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
       $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
           } elsif ($member=~/(\d*)\.(\d*)/) {
       $cell_width_real=(length($1)+length($2)+3)*$scale;
    } else {
       $cell_width_real=(length($member)+1)*$scale*0.9;
    }
    if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
       }
       $cell_width+=8; 
       my $textwidth;
       if ($env{'form.textwidth'} ne '') {
    $env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
    $textwidth=$1.'.'.$2;
     } else {      } else {
  $max_val=4;   $env{'form.textwidth'}=~/(\d+)\.?(\d*)/;
    $textwidth=$1.'.'.$2;
     }      }
     $max_val = int(0.9*$ENV{'form.textwidth'}/(($max_val+6)*2));      my $bubbles_per_line=int($textwidth/$cell_width);
     my $celllength = 0.9*$ENV{'form.textwidth'}/$max_val-10;      if ($bubbles_per_line > $number_of_bubbles) {
    $bubbles_per_line=$number_of_bubbles;
       }elsif (($bubbles_per_line > $number_of_bubbles/2) && ($number_of_bubbles % 2==0)) {$bubbles_per_line=$number_of_bubbles/2;}
       my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
     my @table_range = ();      my @table_range = ();
     my $number_of_tables = int($number_of_bubbles/$max_val);      for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
     for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$max_val;}      if ($number_of_bubbles % $bubbles_per_line) {
     if ($number_of_bubbles % $max_val != 0) {  
  $number_of_tables++;   $number_of_tables++;
  push @table_range,($number_of_bubbles % $max_val);   push @table_range,($number_of_bubbles % $bubbles_per_line);
     }      }
     return ($celllength,$number_of_tables,@table_range);      $cell_width-=8;
       $cell_width=$cell_width*3/4;
       return ($cell_width,$number_of_tables,@table_range);
 }  }
   
 sub format_number {  sub format_number {
     my ($number,$format,$target)=@_;      my ($number,$format,$target,$safeeval)=@_;
     my $ans;      my $ans;
     if ($format ne '') {      if ($format eq '') {
  $ans = sprintf('%.'.$format,$number);  
     } else {  
  my $format = '';  
  #What is the number? (integer,decimal,floating point)   #What is the number? (integer,decimal,floating point)
  if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {   if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
     $format = 'e'.$2;      $format = '3e';
  } elsif ($number=~/^(\d*)\.(\d*)$/) {   } elsif ($number=~/^(\d*)\.(\d*)$/) {
     $format = '4f';      $format = '4f';
  } elsif ($number=~/^(\d*)$/) {   } elsif ($number=~/^(\d*)$/) {
     $format = 'd';      $format = 'd';
  }   }
  $ans = sprintf('%.'.$format,$number);  
     }      }
     if ($target eq 'tex') {      if (!$Apache::lonxml::default_homework_loaded) {
  if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {   &Apache::lonxml::default_homework_load($safeeval);
     my $number = $1;  
     my $power = $2;  
     $power=~s/^\+//;  
     $power=~s/^(-?)0+(\d+)//;  
     $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs  
  }  
     }      }
       $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval);
     return $ans;      return $ans;
 }  }
   
 sub make_numerical_bubbles {  sub make_numerical_bubbles {
     my ($number_of_bubbles,$target,$answer,$format) =@_;      my ($number_of_bubbles,$target,$answer,$format,$incorrect,$safeeval) =@_;
     my @bubble_values = ();      my @bubble_values=();
       &Apache::lonxml::debug("answer is $answer incorrect is $incorrect");
       my @oldseed=&Math::Random::random_get_seed();
       if (defined($incorrect) && ref($incorrect)) {
    &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1 gt $number_of_bubbles));
    if (defined($$incorrect[0]) &&
       scalar(@$incorrect)+1 >= $number_of_bubbles) {
       &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1).":$number_of_bubbles");
       &Apache::response::setrandomnumber();
       my @rand_inc=&Math::Random::random_permutation(@$incorrect);
       @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
       @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
       &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": whih are :".join(':',@bubble_values));
       &Math::Random::random_set_seed(@oldseed);
       if (defined($format) && $format ne '') {
    my @bubble_display;
    foreach my $value (@bubble_values) {
       push(@bubble_display,
    &format_number($value,$format,$target,$safeeval));
    }
    return (\@bubble_values,\@bubble_display);
       } else {
    return (\@bubble_values,\@bubble_values);
       }
    }
    if (defined($$incorrect[0]) &&
       scalar(@$incorrect)+1 < $number_of_bubbles) {
       &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them (".join(',',@$incorrect).").");
    }
       }
     my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors      my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
     my @powers = (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0); #default values for powers      my @powers = (1..$number_of_bubbles);
     &Apache::response::setrandomnumber();      &Apache::response::setrandomnumber();
     my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);      my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
     my $power = $powers[$ind];      my $power = $powers[$ind];
     $ind=&Math::Random::random_uniform_integer(1,0,$#factors);      $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
     my $factor = $factors[$ind];      my $factor = $factors[$ind];
       my @bubble_display;
     for ($ind=0;$ind<$number_of_bubbles;$ind++) {      for ($ind=0;$ind<$number_of_bubbles;$ind++) {
  $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));   $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
  $bubble_values[$ind] = &format_number($bubble_values[$ind],   $bubble_display[$ind] = &format_number($bubble_values[$ind],
        $format,$target);         $format,$target,$safeeval);
   
     }      }
     return @bubble_values;      &Math::Random::random_set_seed(@oldseed);
       return (\@bubble_values,\@bubble_display);
 }  }
   
 sub get_tolrange {  sub get_tolrange {
Line 478  sub get_tolrange { Line 696  sub get_tolrange {
 sub get_sigrange {  sub get_sigrange {
     my ($sig)=@_;      my ($sig)=@_;
     &Apache::lonxml::debug("Got a sig of :$sig:");      &Apache::lonxml::debug("Got a sig of :$sig:");
       my $courseid=$env{'request.course.id'};
       if (lc($env{"course.$courseid.disablesigfigs"}) eq 'yes') {
    return (15,0);
       }
     my $sig_lbound;      my $sig_lbound;
     my $sig_ubound;      my $sig_ubound;
     if ($sig eq '') {      if ($sig eq '') {
Line 485  sub get_sigrange { Line 707  sub get_sigrange {
  $sig_ubound =15; #SIG_UB_DEFAULT   $sig_ubound =15; #SIG_UB_DEFAULT
     } else {      } else {
  ($sig_lbound,$sig_ubound) = split(/,/,$sig);   ($sig_lbound,$sig_ubound) = split(/,/,$sig);
  if (!$sig_lbound) {   if (!defined($sig_lbound)) {
     $sig_lbound = 0; #SIG_LB_DEFAULT      $sig_lbound = 0; #SIG_LB_DEFAULT
     $sig_ubound =15; #SIG_UB_DEFAULT      $sig_ubound =15; #SIG_UB_DEFAULT
  }   }
  if (!$sig_ubound) { $sig_ubound=$sig_lbound; }   if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; }
       }
       if (($sig_ubound<$sig_lbound) ||
    ($sig_lbound > 15) ||
    ($sig =~/(\+|-)/ ) ) {
    my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
    if ($env{'request.state'} eq 'construct') {
       $errormsg.=
    &Apache::loncommon::help_open_topic('Significant_Figures');
    }
    &Apache::lonxml::error($errormsg);
     }      }
     return ($sig_ubound,$sig_lbound);      return ($sig_ubound,$sig_lbound);
 }  }
Line 497  sub get_sigrange { Line 729  sub get_sigrange {
 sub start_stringresponse {  sub start_stringresponse {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result;      my $result;
       my $id = &Apache::response::start_response($parstack,$safeeval);
     if ($target eq 'meta') {      if ($target eq 'meta') {
  &Apache::response::start_response($parstack,$safeeval);  
  $result=&Apache::response::meta_package_write('stringresponse');   $result=&Apache::response::meta_package_write('stringresponse');
  &Apache::response::end_response();      } elsif ($target eq 'edit') {
     } else {   $result.=&Apache::edit::tag_start($target,$token);
  $result.=&start_numericalresponse(@_);   $result.=&Apache::edit::text_arg('Answer:','answer',$token);
    $result.=&Apache::edit::select_arg('Type:','type',
    [['cs','Case Sensitive'],['ci','Case Insensitive'],
     ['mc','Case Insensitive, Any Order'],
     ['re','Regular Expression']],$token);
    $result.=&Apache::edit::text_arg('String to display for answer:',
    'answerdisplay',$token);
    $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag;
    $constructtag=&Apache::edit::get_new_args($token,$parstack,
     $safeeval,'answer',
     'type','answerdisplay');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
       $result.=&Apache::edit::handle_insert();
    }
       } elsif ($target eq 'web') {
    if (  &Apache::response::show_answer() ) {
       my $answer=
          &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
       if (!defined $answer || $answer eq '') {
    $answer=
       &Apache::lonxml::get_param('answer',$parstack,$safeeval);
       }
       $Apache::inputtags::answertxt{$id}=$answer;
    } 
       } elsif ($target eq 'answer' || $target eq 'grade') {
    &Apache::response::reset_params();
     }      }
     return $result;      return $result;
 }  }
   
 sub end_stringresponse {  sub end_stringresponse {
     return end_numericalresponse(@_);      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $increment=1;
       my $result = '';
       my $part=$Apache::inputtags::part;
       my $id=$Apache::inputtags::response[-1];
       my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
       my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
       my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
       &Apache::lonxml::debug("current $answer ".$token->[2]);
       if (!$Apache::lonxml::default_homework_loaded) {
    &Apache::lonxml::default_homework_load($safeeval);
       }
       if ( $target eq 'grade' && &Apache::response::submitted() ) {
    &Apache::response::setup_params('stringresponse',$safeeval);
    $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
    if ($Apache::lonhomework::type eq 'exam' ||
       &Apache::response::submitted('scantron')) {
       $increment=&Apache::response::scored_response($part,$id);
    } else {
       my $response = &Apache::response::getresponse();
       if ( $response =~ /[^\s]/) {
    my %previous = &Apache::response::check_for_previous($response,
       $part,$id);
    &Apache::lonxml::debug("submitted a $response<br>\n");
    &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
    $Apache::lonhomework::results{"resource.$part.$id.submission"}=
       $response;
    my ($ad,$msg);
    if ($type eq 're' ) { 
       # if the RE wasn't in a var it likely got munged,
                       # thus grab it from the var directly
   #    my $testans=$token->[2]->{'answer'};
   #    if ($testans !~ m/^\s*\$/) {
   # $answer=$token->[2]->{'answer'};
   #    }
       ${$safeeval->varglob('LONCAPA::response')}=$response;
       $result = &Apache::run::run('if ($LONCAPA::response=~m'.$answer.') { return 1; } else { return 0; }',$safeeval);
       &Apache::lonxml::debug("current $response");
       &Apache::lonxml::debug("current $answer");
       $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
    } else {
       my $args_ref= 
    \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
   
       $$args_ref{'response'}=$response;
       &Apache::lonxml::debug("current $response");
       $$args_ref{'type'}=
    &Apache::lonxml::get_param('type',$parstack,$safeeval);
       foreach my $key (keys(%Apache::inputtags::params)) {
    $$args_ref{$key}=$Apache::inputtags::params{$key};
       }
       &Apache::lonxml::debug('answer is'.join(':',$answer));
       @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=($answer);
       ($result, my @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
       &Apache::lonxml::debug('msgs are'.join(':',@msgs));
       my ($awards)=split(/:/,$result);
       my (@awards) = split(/,/,$awards);
       ($ad,$msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
       &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
    }
    if ($Apache::lonhomework::type eq 'survey' &&
       ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
        $ad eq 'EXACT_ANS')) {
       $ad='SUBMITTED';
    }
    &Apache::response::handle_previous(\%previous,$ad);
    $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
    $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg;
       }
    }
       } elsif ($target eq 'web' || $target eq 'tex') {
    my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
    my $status = $Apache::inputtags::status['-1'];
    if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
       $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
       $increment = &Apache::response::repetition();
       $result.='\begin{enumerate}';
       for (my $i=0;$i<$increment;$i++) {
    $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
       '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
       }
       $result.= '\end{enumerate}';
    }
       } elsif ($target eq 'answer' || $target eq 'analyze') {
    if ($target eq 'analyze') {
       push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
       $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
       &Apache::response::check_if_computed($token,$parstack,$safeeval,
    'answer');
    }
    &Apache::response::setup_params('stringresponse',$safeeval);
    if ($target eq 'answer') {
       $result.=&Apache::response::answer_header('stringresponse');
    }
   # foreach my $ans (@answers) {
       if ($target eq 'answer') {
    $result.=&Apache::response::answer_part('stringresponse',$answer);
    if ($type eq 're') {
       $result.=&Apache::response::answer_part('stringresponse',
       $answerdisplay);
    }
       } elsif ($target eq 'analyze') {
    push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"} },
         $answer);
       }
   # }
    my $string='Case Insensitive';
    if ($type eq 'mc') {
       $string='Multiple Choice';
    } elsif ($type eq 'cs') {
       $string='Case Sensitive';
    } elsif ($type eq 'ci') {
       $string='Case Insensitive';
    } elsif ($type eq 're') {
       $string='Regular Expression';
    }
    if ($target eq 'answer') {
       if ($env{'form.answer_output_mode'} eq 'tex') {
    $result.=&Apache::response::answer_part('stringresponse',
    "$string");
       } else {
    $result.=&Apache::response::answer_part('stringresponse',
    "<b>$string</b>");
       }
    } elsif ($target eq 'analyze') {
       push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
     $type);
    }
    if ($target eq 'answer') {
       $result.=&Apache::response::answer_footer('stringresponse');
    }
       } elsif ($target eq 'edit') {
    $result.='</td></tr>'.&Apache::edit::end_table;
       }
       if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 
    $target eq 'tex' || $target eq 'analyze') {
    &Apache::lonxml::increment_counter($increment);
       }
       &Apache::response::end_response;
       return $result;
 }  }
   
 sub start_formularesponse {  sub start_formularesponse {
Removed from v.1.108  
changed lines
  Added in v.1.183

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