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Diff for /loncom/homework/response.pm between versions 1.46 and 1.78

version 1.46, 2001/08/20 23:48:05 version 1.78, 2003/05/16 20:16:18
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 # various response type definitons response definition  # various response type definitons response definition
   #
   # $Id$
   #
   # Copyright Michigan State University Board of Trustees
   #
   # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   #
   # LON-CAPA is free software; you can redistribute it and/or modify
   # it under the terms of the GNU General Public License as published by
   # the Free Software Foundation; either version 2 of the License, or
   # (at your option) any later version.
   #
   # LON-CAPA is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   # GNU General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   #
   # /home/httpd/html/adm/gpl.txt
   #
   # http://www.lon-capa.org/
   #
 # 11/23,11/24,11/28 Gerd Kortemeyer  # 11/23,11/24,11/28 Gerd Kortemeyer
 # Guy Albertelli  # Guy Albertelli
 # 08/04,08/07 Gerd Kortemeyer  # 08/04,08/07 Gerd Kortemeyer
Line 8 Line 32
 package Apache::response;  package Apache::response;
 use strict;  use strict;
   
 sub BEGIN {  BEGIN {
   &Apache::lonxml::register('Apache::response',('responseparam','caparesponse','numericalresponse','stringresponse','radiobuttonresponse','optionresponse','imageresponse','essayresponse','dataresponse'));      &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse'));
 }  }
   
 sub start_response {  sub start_response {
   my ($parstack,$safeeval)=@_;      my ($parstack,$safeeval)=@_;
   my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);      my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
   if ($id eq '') { $id = $Apache::lonxml::curdepth; }      if ($id eq '') { $id = $Apache::lonxml::curdepth; }
   push (@Apache::inputtags::response,$id);      if ($#Apache::inputtags::import > -1) {
   push (@Apache::inputtags::responselist,$id);   &Apache::lonxml::debug("Turning :$id: into");
   @Apache::inputtags::inputlist=();   $id = join('_',@Apache::inputtags::import).'_'.$id;
   return $id;   &Apache::lonxml::debug("New  :$id:");
       }
       push (@Apache::inputtags::response,$id);
       push (@Apache::inputtags::responselist,$id);
       @Apache::inputtags::inputlist=();
       return $id;
 }  }
   
 sub end_response {  sub end_response {
   pop @Apache::inputtags::response;      pop @Apache::inputtags::response;
   @Apache::inputtags::inputlist=();      @Apache::inputtags::inputlist=();
   return '';      return '';
 }  }
   
 sub start_hintresponse {  sub start_hintresponse {
   my ($parstack,$safeeval)=@_;      my ($parstack,$safeeval)=@_;
   my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);      my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
   if ($id eq '') { $id = $Apache::lonxml::curdepth; }      if ($id eq '') { $id = $Apache::lonxml::curdepth; }
   push (@Apache::inputtags::response,$id);      push (@Apache::inputtags::response,$id);
   return $id;      push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
       return $id;
 }  }
   
 sub end_hintresponse {  sub end_hintresponse {
   pop @Apache::inputtags::response;      pop @Apache::inputtags::response;
   return '';      if (defined($Apache::inputtags::paramstack[-1])) {
    %Apache::inputtags::params=
       @{ pop(@Apache::inputtags::paramstack) };
       }
       return '';
 }  }
   
 # used by response to set the non-safe space random number generator to something  # used by response to set the non-safe space random number generator to something
 # that is stable and unique based on the part number and response number  # that is stable and unique based on the part number and response number
 sub setrandomnumber {  sub setrandomnumber {
   my $rndseed=&Apache::lonnet::rndseed();      my $rndseed;
   &Apache::lonxml::debug("randseed $rndseed");      if ($ENV{'request.state'} eq "construct") {
 #  $rndseed=unpack("%32i",$rndseed);   $rndseed=$ENV{'form.rndseed'};
   $rndseed=$rndseed   if (!$rndseed) { $rndseed=time; }
     +(&Apache::lonnet::numval($Apache::inputtags::part) << 10);      } else {
   if (defined($Apache::inputtags::response['-1'])) {   $rndseed=&Apache::lonnet::rndseed();
     $rndseed=$rndseed      }
       +&Apache::lonnet::numval($Apache::inputtags::response['-1']);      &Apache::lonxml::debug("randseed $rndseed");
   }      #  $rndseed=unpack("%32i",$rndseed);
   srand($rndseed);      my $rndmod=(&Apache::lonnet::numval($Apache::inputtags::part) << 10);
   &Apache::lonxml::debug("randseed $rndseed");      if (defined($Apache::inputtags::response['-1'])) {
   return '';         $rndmod+=&Apache::lonnet::numval($Apache::inputtags::response[-1]);
       }
       if ($rndseed =~/,/) {
    my ($num1,$num2)=split(/,/,$rndseed);
    $num1+=$rndmod;
    $num2+=$rndmod;
    $rndseed="$num1,$num2";
       } else {
    $rndseed+=$rndmod;
       }
       &Apache::lonnet::setup_random_from_rndseed($rndseed);
       &Apache::lonxml::debug("randseed $rndseed");
       return '';
 }  }
   
 sub meta_parameter_write {  sub meta_parameter_write {
Line 63  sub meta_parameter_write { Line 109  sub meta_parameter_write {
     my $partref=$Apache::inputtags::part;      my $partref=$Apache::inputtags::part;
     my $result='<parameter part="'.$Apache::inputtags::part.'"';      my $result='<parameter part="'.$Apache::inputtags::part.'"';
     if (defined($Apache::inputtags::response[-1])) {      if (defined($Apache::inputtags::response[-1])) {
       $result.=            ' id="'.$Apache::inputtags::response[-1].'"';   $result.=            ' id="'.$Apache::inputtags::response[-1].'"';
       $partref.='_'.$Apache::inputtags::response[-1];   $partref.='_'.$Apache::inputtags::response[-1];
     }      }
     $result.=            ' name="'.$name.'"'.      $result.=            ' name="'.$name.'"'.
                          ' type="'.$type.'"'.                           ' type="'.$type.'"'.
Line 79  sub meta_package_write { Line 125  sub meta_package_write {
     my $name=shift;      my $name=shift;
     my $result = '<parameter part="'.$Apache::inputtags::part.'"';      my $result = '<parameter part="'.$Apache::inputtags::part.'"';
     if(defined($Apache::inputtags::response[-1])) {      if(defined($Apache::inputtags::response[-1])) {
       $result.=              ' id="'.$Apache::inputtags::response[-1].'"';   $result.= ' id="'.$Apache::inputtags::response[-1].'"';
     }      }
     $result.=' package="'.$name.'"></parameter>'."\n";      $result.=' package="'.$name.'"></parameter>'."\n";
     return $result;      return $result;
Line 90  sub meta_stores_write { Line 136  sub meta_stores_write {
     my $partref=$Apache::inputtags::part;      my $partref=$Apache::inputtags::part;
     my $result = '<stores part="'.$Apache::inputtags::part.'"';      my $result = '<stores part="'.$Apache::inputtags::part.'"';
     if (defined($Apache::inputtags::response[-1])) {      if (defined($Apache::inputtags::response[-1])) {
       $result.=           ' id="'.$Apache::inputtags::response[-1].'"';   $result.=           ' id="'.$Apache::inputtags::response[-1].'"';
       $partref.='_'.$Apache::inputtags::response[-1];   $partref.='_'.$Apache::inputtags::response[-1];
     }      }
     $result.=          ' name="'.$name.'"'.      $result.=          ' name="'.$name.'"'.
                        ' type="'.$type.'"'.                         ' type="'.$type.'"'.
Line 106  sub mandatory_part_meta { Line 152  sub mandatory_part_meta {
 # output (to lonspreadsheet)  # output (to lonspreadsheet)
 # of each part  # of each part
 #  #
  return      return
 #    &meta_parameter_write('opendate','date_start','',  #    &meta_parameter_write('opendate','date_start','',
 #                          'Opening Date').  #                          'Opening Date').
 #    &meta_parameter_write('duedate','date_end','',  #    &meta_parameter_write('duedate','date_end','',
Line 117  sub mandatory_part_meta { Line 163  sub mandatory_part_meta {
 #                          'Available Points').  #                          'Available Points').
 #    &meta_parameter_write('maxtries','int_pos','',  #    &meta_parameter_write('maxtries','int_pos','',
 #                          'Maximum Number of Tries').  #                          'Maximum Number of Tries').
     &meta_package_write('part').   &meta_package_write('part').
     &meta_stores_write('solved','string',          &meta_stores_write('solved','string',
                           'Problem Status').     'Problem Status').
     &meta_stores_write('tries','int_zeropos',          &meta_stores_write('tries','int_zeropos',
                           'Number of Attempts').     'Number of Attempts').
     &meta_stores_write('awarded','float',          &meta_stores_write('awarded','float',
           'Partial Credit Factor');     'Partial Credit Factor');
 #  #
 # Note: responseid-specific data 'submission' and 'awarddetail'  # Note: responseid-specific data 'submission' and 'awarddetail'
 # not available to spreadsheet -> skip here  # not available to spreadsheet -> skip here
Line 131  sub mandatory_part_meta { Line 177  sub mandatory_part_meta {
 }  }
   
 sub check_for_previous {  sub check_for_previous {
   my ($curresponse,$partid,$id) = @_;      my ($curresponse,$partid,$id) = @_;
   my %previous;      my %previous;
   $previous{'used'} = 0;      $previous{'used'} = 0;
   foreach my $key (reverse(sort(keys(%Apache::lonhomework::history)))) {      foreach my $key (sort(keys(%Apache::lonhomework::history))) {
     if ($key =~ /resource\.$partid\.$id\.submission/) {   if ($key =~ /resource\.$partid\.$id\.submission/) {
       &Apache::lonxml::debug("Trying $key");      &Apache::lonxml::debug("Trying $key");
       my $pastresponse=$Apache::lonhomework::history{$key};      my $pastresponse=$Apache::lonhomework::history{$key};
       if ($pastresponse eq $curresponse) {      if ($pastresponse eq $curresponse) {
  $previous{'used'} = 1;   $previous{'used'} = 1;
  my $history;   my $history;
  if ( $key =~ /^(\d+):/ ) {   if ( $key =~ /^(\d+):/ ) {
   $history=$1;      $history=$1;
   $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};      $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
   $previous{'last'}='0';      $previous{'last'}='0';
       push(@{ $previous{'version'} },$history);
    } else {
       $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
       $previous{'last'}='1';
    }
    if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
    &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
       }
    }
       }
       &Apache::lonhomework::showhash(%previous);
       return %previous;
   }
   
   sub handle_previous {
       my ($previous,$ad)=@_;
       if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
    if ($$previous{'last'}) {
       push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
  } else {   } else {
   $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};      push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
   $previous{'last'}='1';  
  }   }
  if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }   push(@Apache::inputtags::previous_version,$$previous{'version'});
  &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");  
  last;  
       }  
     }      }
   }  
   return %previous;  
 }  }
   
 sub start_caparesponse {  sub view_or_modify {
   require Apache::caparesponse;       my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
   import Apache::caparesponse;       my $myself=0;
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      if ( ($name eq $ENV{'user.name'}) && ($domain eq $ENV{'user.domain'}) ) {
 #  print "\n<br />\nsimple caparesponse\n";   $myself=1;
   return &Apache::caparesponse::start_caparesponse($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);      }
       my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
       my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
       if ($mgr) { return "M"; }
       if ($vgr) { return "V"; }
       if ($myself) { return "V"; }
       return '';
 }  }
   
 sub start_stringresponse {  sub start_dataresponse {
   require Apache::caparesponse;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   import Apache::caparesponse;      my $id = &Apache::response::start_response($parstack,$safeeval);
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my $result;
   return &Apache::caparesponse::start_stringresponse($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);      if ($target eq 'web') {
    $result = $token->[2]->{'display'}.':';
       } elsif ($target eq 'meta') {
    $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
          $token->[2]->{'type'},
          $token->[2]->{'display'});
    $result .= &Apache::response::meta_package_write('dataresponse');
       }
       return $result;
 }  }
   
 sub start_numericalresponse {  sub end_dataresponse {
   require Apache::caparesponse;       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   import Apache::caparesponse;       my $result;
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      if ( $target eq 'web' ) {
   return &Apache::caparesponse::start_numericalresponse      } elsif ($target eq 'grade' ) {
     ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);   if ( defined $ENV{'form.submitted'}) {
       my ($symb,$courseid,$domain,$name)=&Apache::lonxml::whichuser();
       my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
       if ($allowed) {
    &Apache::response::setup_params('dataresponse');
    my $partid = $Apache::inputtags::part;
    my $id = $Apache::inputtags::response['-1'];
    my $response = $ENV{'form.HWVAL_'.$id};
    my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
    if ( $response =~ /[^\s]/) {
       $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
       $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
       $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
    }
       } else {
    $result='Not Permitted to change values.'
       }
    }
       }
       &Apache::response::end_response;
       return $result;
 }  }
   
 sub start_radiobuttonresponse {  sub start_responseparam {
   require Apache::radiobuttonresponse;       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   import Apache::radiobuttonresponse;       my $result='';
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      if ($target eq 'meta') {
   return &Apache::radiobuttonresponse::start_radiobuttonresponse($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);   $result = &meta_parameter_write($token->[2]->{'name'},
    $token->[2]->{'type'},
    $token->[2]->{'default'},
    $token->[2]->{'description'});
       } elsif ($target eq 'edit') {
    $result.=&Apache::edit::tag_start($target,$token);
    $result.=&Apache::edit::text_arg('Name:','name',$token).
       &Apache::edit::text_arg('Type:','type',$token).
    &Apache::edit::text_arg('Description:','description',$token).
       &Apache::edit::text_arg('Default:','default',$token).
    "</td></tr>";
    $result.=&Apache::edit::end_table;
       } elsif ($target eq 'modified') {
    my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
        'name','type','description',
        'default');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
       $result.=&Apache::edit::handle_insert();
    }
       } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
        $target eq 'tex' || $target eq 'analyze' ) {
    if ($ENV{'request.state'} eq 'construct') {
       my $name   =&Apache::lonxml::get_param('name',$parstack,$safeeval);
       my $default=&Apache::lonxml::get_param('default',$parstack,
        $safeeval);
       if ($name) {$Apache::inputtags::params{$name}=$default;}
    }
       }
       return $result;
 }  }
   
 sub start_optionresponse {  sub end_responseparam {
   require Apache::optionresponse;       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   import Apache::optionresponse;       if ($target eq 'edit') { return ('','no'); }
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      return '';
   return &Apache::optionresponse::start_optionresponse($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);  
 }  }
   
 sub start_imageresponse {  sub start_parameter {
   require Apache::imageresponse;       my $result = &start_responseparam(@_);
   import Apache::imageresponse;       return $result;
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;  
   return &Apache::imageresponse::start_imageresponse($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);  
 }  }
   
 sub start_essayresponse {  sub end_parameter {
   require Apache::essayresponse;       my $result = &end_responseparam(@_);
   import Apache::essayresponse;       return $result;
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;  
   return &Apache::essayresponse::start_essayresponse($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);  
 }  }
   
 sub view_or_modify {  sub reset_params {
   my ($symb,$courseid,$domain,$name) = &Apache::lonhomework::whichuser();      %Apache::inputtags::params=();
   my $myself=0;  
   if ( ($name eq $ENV{'user.name'}) && ($domain eq $ENV{'user.domain'}) ) {  
     $myself=1;  
   }  
   my $vgr=&Apache::lonnet::allowed('vgr',$courseid);  
   my $mgr=&Apache::lonnet::allowed('vgr',$courseid);  
   if ($mgr) { return "M"; }  
   if ($vgr) { return "V"; }  
   if ($myself) { return "V"; }  
   return '';  
 }  }
   
 sub start_dataresponse {  sub setup_params {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($tag) = @_;
   my $id = &Apache::response::start_response($parstack,$safeeval);  
   my $result;      if ($ENV{'request.state'} eq 'construct') { return; }
   if ($target eq 'web') {      my %paramlist=();
     $result = $token->[2]->{'display'}.':';      foreach my $key (keys(%Apache::lonnet::packagetab)) {
   } elsif ($target eq 'meta') {   if ($key =~ /^$tag/) {
     $result = &Apache::response::meta_stores_write($token->[2]->{'name'},      my ($package,$name) = split(/&/,$key);
    $token->[2]->{'type'},      $paramlist{$name}=1;
    $token->[2]->{'display'});   }
     $result .= &Apache::response::meta_package_write('dataresponse');      }
   }      foreach my $key (keys(%paramlist)) {
   return $result;   my $entry= 'resource.'.$Apache::inputtags::part;
    if (defined($Apache::inputtags::response[-1])) {
       $entry.='_'.$Apache::inputtags::response[-1];
    }
    $entry.='.'.$key;
    &Apache::lonxml::debug("looking for $entry");
    my $value = &Apache::lonnet::EXT("$entry");
    &Apache::lonxml::debug("$key has value :$value:");
    if ($value eq 'con_lost' || $value =~ /^error:/) {
       &Apache::lonxml::debug("using nothing");
       $Apache::inputtags::params{$key}='';
    } else {
       &Apache::lonxml::debug("using value");
       $Apache::inputtags::params{$key}=$value;
    }
       }
 }  }
   
 sub end_dataresponse {  sub answer_header {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($type) = @_;
   my $result;      my $result;
   if ( $target eq 'web' ) {      if ($ENV{'form.answer_output_mode'} eq 'tex') {
   } elsif ($target eq 'grade' ) {   $result = ' \vskip 0 mm \begin{tabular}{|c|}\hline Answer for Part: '.
     if ( defined $ENV{'form.submitted'}) {                    $Apache::inputtags::part.' \\\\ \hline ';
       my ($symb,$courseid,$domain,$name)=&Apache::lonhomework::whichuser();      } else {
       my $allowed=&Apache::lonnet::allowed('mgr',$courseid);   if ($type eq 'optionresponse' || $type eq 'radiobuttonresponse' ) {
       if ($allowed) {      $result = '<table border="1"><tr><th>Answer for Part:'.
  &Apache::response::setup_params('datasubmission');   $Apache::inputtags::part. '</th></tr><tr>'."\n";
  my $partid = $Apache::inputtags::part;   } else {
  my $id = $Apache::inputtags::response['-1'];      $result = '<table border="1"><tr><td>Answer for Part:'.
  my $response = $ENV{'form.HWVAL'.$id};   $Apache::inputtags::part. '</td>'."\n";
  my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);   }
  if ( $response =~ /[^\s]/) {      }
   $Apache::lonhomework::results{"resource.$partid.$id.$name"}=      return $result;
     $response;  
   $Apache::lonhomework::results{  
  "resource.$partid.$id.submission"}=  
   $response;  
   $Apache::lonhomework::results{  
  "resource.$partid.$id.awarddetail"}=  
   'SUBMITTED';  
  }  
       } else {  
  $result='Not Permitted to change values.'  
       }  
     }  
   }  
   &Apache::response::end_response;  
   return $result;  
 }  }
   
 sub start_responseparam {  sub answer_part {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($type,$answer) = @_;
   my $result='';      my $result;
   if ($target eq 'meta') {      if ($ENV{'form.answer_output_mode'} eq 'tex') {
     $result = &meta_parameter_write($token->[2]->{'name'},   $result = ' '.$answer.'\\\\ \hline ';
     $token->[2]->{'type'},      } else {
     $token->[2]->{'default'},   if ($type eq 'optionresponse' || $type eq 'radiobuttonresponse') {
     $token->[2]->{'description'});      $result = '<td>'.$answer.'</td>';
   } elsif ($target eq 'edit') {   } else {
     $result.=&Apache::edit::tag_start($target,$token,      $result = '<td>'.$answer.'</td>';
       &Apache::lonxml::description($token));   }
     $result.=&Apache::edit::text_arg('Name:','name',$token).  
       &Apache::edit::text_arg('Type:','type',$token).  
  &Apache::edit::text_arg('Description:','description',$token).  
   &Apache::edit::text_arg('Default:','default',$token).  
     "</td></tr>";  
     $result.=&Apache::edit::end_table;  
   } elsif ($target eq 'modified') {  
     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,  
  'name','type','description',  
  'default');  
     if ($constructtag) {  
       $result = &Apache::edit::rebuild_tag($token);  
       $result.=&Apache::edit::handle_insert();  
     }      }
   }      return $result;
   return $result;  
 }  }
   
 sub end_responseparam {  sub answer_footer {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($type) = @_;
   if ($target eq 'edit') { return ('','no'); }      my $result;
   return '';      if ($ENV{'form.answer_output_mode'} eq 'tex') {
    $result = ' \end{tabular} \vskip 0 mm ';
       } else {
    if ($type eq 'optionresponse' || $type eq 'radiobuttonresponse') {
       $result = '</tr></table>';
    } else {
       $result = '</tr></table>';
    }
       }
       return $result;
 }  }
   
 sub setup_params {  sub showallfoils {
   my ($tag) = @_;      my $return=0;
       if (defined($ENV{'form.showallfoils'}) &&
    $ENV{'request.state'} eq 'construct') {
    $return=1;
       }
       return $return;
   }
   
   @Apache::inputtags::params=();  sub getresponse {
   my %paramlist=();      my ($temp)=@_;
   foreach my $key (keys(%Apache::lonnet::packagetab)) {      my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
     if ($key =~ /^$tag/) {      my $response;
       my ($package,$name) = split(/&/,$key);      if (!defined($temp)) {
       $paramlist{$name}=1;   $temp=1;
     }      } else {
   }   $formparm.=":$temp";
   foreach my $key (keys(%paramlist)) {  
     my $entry= 'resource.'.$Apache::inputtags::part;  
     if (defined($Apache::inputtags::response[-1])) {  
       $entry.='_'.$Apache::inputtags::response[-1];  
     }      }
     $entry.='.'.$key;      my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
     &Apache::lonxml::debug("looking for $entry");      'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
     my $value = &Apache::lonnet::EXT("$entry");      'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
     &Apache::lonxml::debug("$key has value :$value:");      'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
     if ($value eq 'con_lost' || $value =~ /^error:/) {      if ($ENV{'form.submitted'} eq 'scantron') {
       &Apache::lonxml::debug("using nothing");   my $part  = $Apache::inputtags::part;
       $Apache::inputtags::params{$key}='';   my $id    = $Apache::inputtags::response[-1];
    $response = $ENV{'scantron.'.($Apache::lonxml::counter+$temp-1).
    '.answer'};
    # save bubbled letter for later
    $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
       $response;
    $response = $let_to_num{$response};
     } else {      } else {
       &Apache::lonxml::debug("using value");   $response = $ENV{$formparm};
       $Apache::inputtags::params{$key}=$value;      }
       return $response;
   }
   
   sub repetition {
       my $id = $Apache::inputtags::part;
       my $weight = &Apache::lonnet::EXT("resource.$id.weight");
       my $repetition = int $weight/9;
       if ($weight % 9 != 0) {$repetition++;} 
       return $repetition;
   }
   
   sub scored_response {
       my ($part,$id)=@_;
       my $repetition=&repetition();
       my $score=0;
       for (my $i=0;$i<$repetition;$i++) {
    my $increase=&Apache::response::getresponse($i+1);
    if ($increase ne '') { $score+=$increase+1; }
     }      }
   }      my $weight = &Apache::lonnet::EXT("resource.$part.weight");
       my $pcr=$score/$weight;
       $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
       $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
    'ASSIGNED_SCORE';
       return $repetition;
   }
   
   sub whichorder {
       my ($max,$randomize,$showall,$hash)=@_;
       #&Apache::lonxml::debug("man $max randomize $randomize");
       if (!defined(@{ $$hash{'names'} })) { return; }
       my @names = @{ $$hash{'names'} };
       my @whichopt =();
       my (%top,@toplist,%bottom,@bottomlist);
       if (!($showall || ($randomize eq 'no'))) {
    my $current=0;
    foreach my $name (@names) {
       $current++;
       if ($$hash{"$name.location"} eq 'top') {
    $top{$name}=$current;
       } elsif ($$hash{"$name.location"} eq 'bottom') {
    $bottom{$name}=$current;
       }
    }
       }
       my $topcount=0;
       my $bottomcount=0;
       while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
      && ($#names > -1)) {
    #&Apache::lonxml::debug("Have $#whichopt max is $max");
    my $aopt;
    if ($showall || ($randomize eq 'no')) {
       $aopt=0;
    } else {
       $aopt=int(&Math::Random::random_uniform() * ($#names+1));
    }
    #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
    $aopt=splice(@names,$aopt,1);
    #&Apache::lonxml::debug("Picked $aopt");
    if ($top{$aopt}) {
       $toplist[$top{$aopt}]=$aopt;
       $topcount++;
    } elsif ($bottom{$aopt}) {
       $bottomlist[$bottom{$aopt}]=$aopt;
       $bottomcount++;
    } else {
       push (@whichopt,$aopt);
    }
       }
       for (my $i=0;$i<=$#toplist;$i++) {
    if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
       }
       for (my $i=0;$i<=$#bottomlist;$i++) {
    if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
       }
   
       return @whichopt;
 }  }
   
 1;  1;
Removed from v.1.46  
changed lines
  Added in v.1.78

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