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

Diff for /loncom/homework/response.pm between versions 1.105 and 1.158

version 1.105, 2004/09/27 22:47:49 version 1.158, 2006/12/18 21:37:47
Line 29 Line 29
 package Apache::response;  package Apache::response;
 use strict;  use strict;
 use Apache::lonlocal;  use Apache::lonlocal;
   use Apache::lonnet;
   use Apache::lonmaxima();
   
 BEGIN {  BEGIN {
     &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse'));      &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse'));
 }  }
   
 sub start_response {  sub start_response {
     my ($parstack,$safeeval)=@_;      my ($parstack,$safeeval)=@_;
     my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);      my $id = &Apache::lonxml::get_id($parstack,$safeeval);
     if ($id eq '') { $id = $Apache::lonxml::curdepth; }  
     if ($#Apache::inputtags::import > -1) {      if ($#Apache::inputtags::import > -1) {
  &Apache::lonxml::debug("Turning :$id: into");   &Apache::lonxml::debug("Turning :$id: into");
  $id = join('_',@Apache::inputtags::import).'_'.$id;   $id = join('_',@Apache::inputtags::import).'_'.$id;
Line 68  sub end_response { Line 69  sub end_response {
   
 sub start_hintresponse {  sub start_hintresponse {
     my ($parstack,$safeeval)=@_;      my ($parstack,$safeeval)=@_;
     my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);      my $id = &Apache::lonxml::get_id($parstack,$safeeval);
     if ($id eq '') { $id = $Apache::lonxml::curdepth; }      push (@Apache::inputtags::hint,$id);
     push (@Apache::inputtags::response,$id);      push (@Apache::inputtags::hintlist,$id);
     push (@Apache::inputtags::responselist,$id);  
     push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);      push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
     return $id;      return $id;
 }  }
   
 sub end_hintresponse {  sub end_hintresponse {
     pop @Apache::inputtags::response;      pop @Apache::inputtags::hint;
     if (defined($Apache::inputtags::paramstack[-1])) {      if (defined($Apache::inputtags::paramstack[-1])) {
  %Apache::inputtags::params=   %Apache::inputtags::params=
     @{ pop(@Apache::inputtags::paramstack) };      @{ pop(@Apache::inputtags::paramstack) };
Line 93  sub pushrandomnumber { Line 93  sub pushrandomnumber {
  # do nothing   # do nothing
     } else {      } else {
  my @seed=&Math::Random::random_get_seed();   my @seed=&Math::Random::random_get_seed();
  push (@randomseeds,\@seed);   push(@randomseeds,\@seed);
     }      }
     &Apache::response::setrandomnumber();      &Apache::response::setrandomnumber(@_);
 }  }
 sub poprandomnumber {  sub poprandomnumber {
     my $rand_alg=&Apache::lonnet::get_rand_alg();      my $rand_alg=&Apache::lonnet::get_rand_alg();
Line 110  sub poprandomnumber { Line 110  sub poprandomnumber {
  &Apache::lonxml::error("Unable to restore random algorithm.");   &Apache::lonxml::error("Unable to restore random algorithm.");
     }      }
 }  }
   
 sub setrandomnumber {  sub setrandomnumber {
       my ($ignore_id2) = @_;
     my $rndseed;      my $rndseed;
     $rndseed=&Apache::structuretags::setup_rndseed();      $rndseed=&Apache::structuretags::setup_rndseed();
     if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }      if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
     &Apache::lonxml::debug("randseed $rndseed");      &Apache::lonxml::debug("randseed $rndseed");
     #  $rndseed=unpack("%32i",$rndseed);      #  $rndseed=unpack("%32i",$rndseed);
     my $rand_alg=&Apache::lonnet::get_rand_alg();      my $rand_alg=&Apache::lonnet::get_rand_alg();
     my $rndmod;      my ($rndmod,$rndmod2);
   
       my ($id1,$id2,$shift_amt);
       if ($Apache::lonhomework::parsing_a_problem) {
    $id1=$Apache::inputtags::part;
    if (defined($Apache::inputtags::response[-1])) {
       $id2=$Apache::inputtags::response[-1];
    }
    $shift_amt=scalar(@Apache::inputtags::responselist);
       } elsif ($Apache::lonhomework::parsing_a_task) {
    $id1=&Apache::bridgetask::get_dim_id();
    if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) {
       $id2=$Apache::bridgetask::instance{$id1}[-1];
       $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}});
    } else {
       $shift_amt=0;
    }
       } 
       &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt");
     if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||      if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
  $rand_alg eq '64bit2') {   $rand_alg eq '64bit2') {
  $rndmod=(&Apache::lonnet::numval($Apache::inputtags::part) << 10);   $rndmod=(&Apache::lonnet::numval($id1) << 10);
  if (defined($Apache::inputtags::response[-1])) {   if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); }
     $rndmod+=&Apache::lonnet::numval($Apache::inputtags::response[-1]);      } elsif ($rand_alg eq '64bit3') {
    $rndmod=(&Apache::lonnet::numval2($id1) << 10);
    if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); }
       } elsif ($rand_alg eq '64bit4') {
    my $shift=(4*$shift_amt)%30;
    $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30));
    if (defined($id2)) {
       $rndmod+=(&Apache::lonnet::numval3($id2) << $shift );
  }   }
     } else {      } else {
  $rndmod=(&Apache::lonnet::numval2($Apache::inputtags::part) << 10);   ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2");
  if (defined($Apache::inputtags::response[-1])) {  
     $rndmod+=&Apache::lonnet::numval2($Apache::inputtags::response[-1]);  
  }  
     }      }
   
     if ($rndseed =~/([,:])/) {      if ($rndseed =~/([,:])/) {
  my $char=$1;   my $char=$1;
  use integer;   use integer;
  my ($num1,$num2)=split(/\Q$char\E/,$rndseed);   my ($num1,$num2)=split(/\Q$char\E/,$rndseed);
  $num1+=$rndmod;   $num1+=$rndmod;
  $num2+=$rndmod;   $num2+= ((defined($rndmod2)) ? $rndmod2 : $rndmod);
    if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
  $rndseed=$num1.$char.$num2;   $rndseed=$num1.$char.$num2;
     } else {      } else {
  $rndseed+=$rndmod;   $rndseed+=$rndmod;
    if($Apache::lonnet::_64bit) {
       use integer;
       $rndseed=(($rndseed<<32)>>32);
    }
     }      }
       &Apache::lonxml::debug("randseed $rndmod $rndseed");
     &Apache::lonnet::setup_random_from_rndseed($rndseed);      &Apache::lonnet::setup_random_from_rndseed($rndseed);
     &Apache::lonxml::debug("randseed $rndseed");  
     return '';      return '';
 }  }
   
Line 268  sub handle_previous { Line 298  sub handle_previous {
     if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {      if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
  if ($$previous{'last'}) {   if ($$previous{'last'}) {
     push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');      push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
  } else {      push(@Apache::inputtags::previous_version,$$previous{'version'});
    } elsif ($Apache::lonhomework::type ne 'survey') {
     push(@Apache::inputtags::previous,'PREVIOUSLY_USED');      push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
       push(@Apache::inputtags::previous_version,$$previous{'version'});
  }   }
  push(@Apache::inputtags::previous_version,$$previous{'version'});  
     }      }
 }  }
   
 sub view_or_modify {  sub view_or_modify {
     my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();      my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
     my $myself=0;      my $myself=0;
     if ( ($name eq $ENV{'user.name'}) && ($domain eq $ENV{'user.domain'}) ) {      if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
  $myself=1;   $myself=1;
     }      }
     my $vgr=&Apache::lonnet::allowed('vgr',$courseid);      my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
Line 309  sub end_dataresponse { Line 340  sub end_dataresponse {
     my $result;      my $result;
     if ( $target eq 'web' ) {      if ( $target eq 'web' ) {
     } elsif ($target eq 'grade' ) {      } elsif ($target eq 'grade' ) {
  if ( defined $ENV{'form.submitted'}) {   if ( defined $env{'form.submitted'}) {
     my ($symb,$courseid,$domain,$name)=&Apache::lonxml::whichuser();      my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
     my $allowed=&Apache::lonnet::allowed('mgr',$courseid);      my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
     if ($allowed) {      if ($allowed) {
  &Apache::response::setup_params('dataresponse',$safeeval);   &Apache::response::setup_params('dataresponse',$safeeval);
  my $partid = $Apache::inputtags::part;   my $partid = $Apache::inputtags::part;
  my $id = $Apache::inputtags::response['-1'];   my $id = $Apache::inputtags::response['-1'];
  my $response = $ENV{'form.HWVAL_'.$id};   my $response = $env{'form.HWVAL_'.$id};
  my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);   my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
  if ( $response =~ /[^\s]/) {   if ( $response =~ /[^\s]/) {
     $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;      $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
Line 332  sub end_dataresponse { Line 363  sub end_dataresponse {
     return $result;      return $result;
 }  }
   
   sub start_customresponse {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $id = &Apache::response::start_response($parstack,$safeeval);
       push(@Apache::lonxml::namespace,'customresponse');
       my $result;
       @Apache::response::custom_answer=();
       @Apache::response::custom_answer_type=();
       &Apache::lonxml::register('Apache::response',('answer'));
       if ($target eq 'web') {
     if (  &Apache::response::show_answer() ) {
       my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
      $safeeval);
       $Apache::inputtags::answertxt{$id}=[$answer];
    }
       } elsif ($target eq 'edit') {
    $result.=&Apache::edit::tag_start($target,$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,
     $safeeval,'answerdisplay');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
       $result.=&Apache::edit::handle_insert();
    }
       } elsif ($target eq 'answer' || $target eq 'grade') {
    &Apache::response::reset_params();
       } elsif ($target eq 'meta') {
    $result .= &Apache::response::meta_package_write('customresponse');
       }
       return $result;
   }
   
   sub end_customresponse {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       my $part=$Apache::inputtags::part;
       my $id=$Apache::inputtags::response[-1];
       if ( $target eq 'grade' && &Apache::response::submitted() ) {
    my $response = &Apache::response::getresponse();
    if ($Apache::lonhomework::type eq 'exam' ||
       &Apache::response::submitted('scantron')) {
       &Apache::response::scored_response($part,$id);
    } elsif ( $response =~ /[^\s]/ && 
     $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') {
       if (!$Apache::lonxml::default_homework_loaded) {
    &Apache::lonxml::default_homework_load($safeeval);
       }
       my %previous = &Apache::response::check_for_previous($response,
    $part,$id);
       $Apache::lonhomework::results{"resource.$part.$id.submission"}=
    $response;
       my $error;
       ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
    $response;
       
       my $award = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval);
       if (!&Apache::inputtags::valid_award($award)) {
    $error = $award;
    $award = 'ERROR';
       }
       &Apache::response::handle_previous(\%previous,$award);
       $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
    $award;
       if ($error) {
    $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
       $error;
       }
    }
       } elsif ( $target eq 'answer') {
    $result  = &Apache::response::answer_header('customresponse');
    my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
    $safeeval);
    if ($env{'form.answer_output_mode'} ne 'tex') {
       $answer = '<b>'.$answer.'</b>';
    }
    $result .= &Apache::response::answer_part('customresponse',$answer);
    $result .= &Apache::response::answer_footer('customresponse');
       }
       if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 
    $target eq 'tex' || $target eq 'analyze') {
    &Apache::lonxml::increment_counter(&Apache::response::repetition());
       }
       pop(@Apache::lonxml::namespace);
       pop(@Apache::response::custom_answer);
       pop(@Apache::response::custom_answer_type);
       &Apache::lonxml::deregister('Apache::response',('answer'));
       &Apache::response::end_response();
       return $result;
   }
   
   
   sub start_mathresponse {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $id = &Apache::response::start_response($parstack,$safeeval);
       push(@Apache::lonxml::namespace,'mathresponse');
       my $result;
       @Apache::response::custom_answer=();
       @Apache::response::custom_answer_type=();
       &Apache::lonxml::register('Apache::response',('answer'));
       if ($target eq 'web') {
     if (  &Apache::response::show_answer() ) {
       my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
      $safeeval);
       $Apache::inputtags::answertxt{$id}=[$answer];
    }
       } elsif ($target eq 'edit') {
    $result.=&Apache::edit::tag_start($target,$token);
    $result.=&Apache::edit::text_arg('String to display for answer:',
    'answerdisplay',$token);
    $result.=&Apache::edit::select_arg('Algebra System:',
      'cas',
      ['maxima'],
      $token);
    $result.=&Apache::edit::text_arg('Argument Array:',
    'args',$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,
     $safeeval,'answerdisplay','cas','args');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
       $result.=&Apache::edit::handle_insert();
    }
       } elsif ($target eq 'answer' || $target eq 'grade') {
    &Apache::response::reset_params();
       } elsif ($target eq 'meta') {
    $result .= &Apache::response::meta_package_write('mathresponse');
       }
       return $result;
   }
   
   sub end_mathresponse {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       my $part=$Apache::inputtags::part;
       my $id=$Apache::inputtags::response[-1];
       if ( $target eq 'grade' && &Apache::response::submitted() ) {
    my $response = &Apache::response::getresponse();
    if ( $response =~ /[^\s]/ ) {
       if (!$Apache::lonxml::default_homework_loaded) {
    &Apache::lonxml::default_homework_load($safeeval);
       }
       my %previous = &Apache::response::check_for_previous($response,
    $part,$id);
       $Apache::lonhomework::results{"resource.$part.$id.submission"}=
    $response;
       my $error;
       my $award;
       my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
               if ($cas eq 'maxima') {
                   my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
                   $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args);
               }
       if (!&Apache::inputtags::valid_award($award)) {
    $error = $award;
    $award = 'ERROR';
       }
       &Apache::response::handle_previous(\%previous,$award);
       $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
    $award;
       if ($error) {
    $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
       $error;
       }
    }
       }
       pop(@Apache::lonxml::namespace);
       pop(@Apache::response::custom_answer);
       pop(@Apache::response::custom_answer_type);
       &Apache::lonxml::deregister('Apache::response',('answer'));
       &Apache::response::end_response();
       return $result;
   }
   
   sub implicit_multiplication {
       my ($expression)=@_;
   # Escape scientific notation, so 3e8 does not become 3*e*8
   # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8
       $expression=~s/(\d+)e([\+\-]*\d+)/$1\&\($2\)/gsi;
   # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8
       $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi;
   # Fill in multiplication signs
   # a b -> a*b;3 b -> 3*b;3 4 -> 3*4
       $expression=~s/(\w)\s+(\w)/$1\*$2/gs;
   # )( -> )*(; ) ( -> )*(
       $expression=~s/\)\s*\(/\)\*\(/gs;
   # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A
       $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs;
   # a ( -> a*(
       $expression=~s/(\w)\s+\(/$1\*\(/gs;
   # )a -> )*a; )3 -> )*3; ) 3 -> )*3
       $expression=~s/\)\s*(\w)/\)\*$1/gs;
   # 3&8 -> 3e8; 3&-4 -> 3e-4
       $expression=~s/(\d+)\&\(([\+\-]*\d+)\)/$1e$2/gs;
       return $expression;
   }
   
   sub start_answer {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       push(@Apache::response::custom_answer,
    &Apache::lonxml::get_all_text_unbalanced("/answer",$parser));
       push(@Apache::response::custom_answer_type,
    lc(&Apache::lonxml::get_param('type',$parstack,$safeeval)));
       $Apache::response::custom_answer_type[-1] =~ s/\s+//g;
       if ($target eq "edit" ) {
    $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
    $result.=&Apache::edit::editfield($token->[1],
     $Apache::response::custom_answer[-1],
     '',80,4);
       } elsif ( $target eq "modified" ) {
    $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
       }
       return $result;
   }
   
   sub end_answer {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       if ($target eq 'edit' ) {
    return &Apache::edit::end_table();
       }
   }
   
 sub decide_package {  sub decide_package {
     my ($tagstack)=@_;      my ($tagstack)=@_;
     my $package;      my $package;
Line 384  sub start_responseparam { Line 642  sub start_responseparam {
      $safeeval,'name','type',       $safeeval,'name','type',
      'description','default');       'description','default');
  my $element=&Apache::edit::html_element_name('parameter_package');   my $element=&Apache::edit::html_element_name('parameter_package');
  if (defined($ENV{"form.$element"}) && $ENV{"form.$element"} ne '') {   if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
     my $name=$ENV{"form.$element"};      my $name=$env{"form.$element"};
     my $tag=&decide_package($tagstack);      my $tag=&decide_package($tagstack);
     $token->[2]->{'name'}=$name;      $token->[2]->{'name'}=$name;
     $token->[2]->{'type'}=      $token->[2]->{'type'}=
Line 402  sub start_responseparam { Line 660  sub start_responseparam {
  }   }
     } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||      } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
      $target eq 'tex' || $target eq 'analyze' ) {       $target eq 'tex' || $target eq 'analyze' ) {
  if ($ENV{'request.state'} eq 'construct') {   if ($env{'request.state'} eq 'construct') {
     my $name   =&Apache::lonxml::get_param('name',$parstack,$safeeval);      my $name   =&Apache::lonxml::get_param('name',$parstack,$safeeval);
     my $default=&Apache::lonxml::get_param('default',$parstack,      my $default=&Apache::lonxml::get_param('default',$parstack,
      $safeeval);       $safeeval);
Line 419  sub end_responseparam { Line 677  sub end_responseparam {
 }  }
   
 sub start_parameter {  sub start_parameter {
     my $result = &start_responseparam(@_);      return &start_responseparam(@_);
     return $result;  
 }  }
   
 sub end_parameter {  sub end_parameter {
     my $result = &end_responseparam(@_);      return &end_responseparam(@_);
     return $result;  
 }  }
   
 sub reset_params {  sub reset_params {
Line 435  sub reset_params { Line 691  sub reset_params {
 sub setup_params {  sub setup_params {
     my ($tag,$safeeval) = @_;      my ($tag,$safeeval) = @_;
   
     if ($ENV{'request.state'} eq 'construct') { return; }      if ($env{'request.state'} eq 'construct') { return; }
     my %paramlist=();      my %paramlist=();
     foreach my $key (keys(%Apache::lonnet::packagetab)) {      foreach my $key (keys(%Apache::lonnet::packagetab)) {
  if ($key =~ /^$tag/) {   if ($key =~ /^$tag/) {
Line 464  sub setup_params { Line 720  sub setup_params {
     }      }
 }  }
   
   {
       my @answer_bits;
       my $need_row_start;
   
 sub answer_header {  sub answer_header {
       my ($type,$increment,$rows) = @_;
       my $result;
       if ($env{'form.answer_output_mode'} eq 'tex') {
    undef(@answer_bits);
    my $bit;
    if ($Apache::lonhomework::type eq 'exam') {
       $bit = ($Apache::lonxml::counter+$increment).') ';
    } else {
       $bit .= ' Answer for Part: \verb|'.
    $Apache::inputtags::part.'| ';
    }
    push(@answer_bits,$bit);
       } else {
    my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>';
    $result  = '<table border="1"><tr>';
    if ($Apache::lonhomework::type eq 'exam') {
       $result .= $td.($Apache::lonxml::counter+$increment). ')</td>';
    } else {
       $result .= $td.&mt('Answer for Part: [_1]',
          $Apache::inputtags::part).'</td>';
    }
    $result .= "\n";
    $need_row_start = 0;
       }
       return $result;
   }
   
   sub next_answer {
     my ($type) = @_;      my ($type) = @_;
     my $result;      my $result;
     if ($ENV{'form.answer_output_mode'} eq 'tex') {      if ($env{'form.answer_output_mode'} eq 'tex') {
  $result = ' \vskip 0 mm \begin{tabular}{|c|}\hline Answer for Part: \verb|'.   # FIXME ... need to do something with tex mode
                   $Apache::inputtags::part.'| \\\\ \hline ';  
     } else {      } else {
  $result = '<table border="1"><tr><td>Answer for Part:'.   $result .= "</tr>";
     $Apache::inputtags::part. '</td>'."\n";   $need_row_start = 1;
     }      }
     return $result;      return $result;
 }  }
   
 sub answer_part {  sub answer_part {
     my ($type,$answer) = @_;      my ($type,$answer,$args) = @_;
     my $result;      my $result;
     if ($ENV{'form.answer_output_mode'} eq 'tex') {      if ($env{'form.answer_output_mode'} eq 'tex') {
  $result = ' \verb|'.$answer.'|\\\\ \hline ';   if (!$args->{'no_verbatim'}) {
       my $to_use='|';
       foreach my $value (32..126) {
    my $char=pack('c',$value);
    if ($answer !~ /\Q$char\E/) {
       $to_use=$char;
       last;
    }
       }
       if ($answer ne '') {
    $answer = '\verb'.$to_use.$answer.$to_use;
       }
    }
    if ($answer ne '') {
       push(@answer_bits,$answer);
    }
     } else {      } else {
  $result = '<td>'.$answer.'</td>';   if ($need_row_start) {
       $result .= '<tr>';
       $need_row_start = 0;
    }
    $result .= '<td>'.$answer.'</td>';
     }      }
     return $result;      return $result;
 }  }
Line 491  sub answer_part { Line 797  sub answer_part {
 sub answer_footer {  sub answer_footer {
     my ($type) = @_;      my ($type) = @_;
     my $result;      my $result;
     if ($ENV{'form.answer_output_mode'} eq 'tex') {      if ($env{'form.answer_output_mode'} eq 'tex') {
  $result = ' \end{tabular} \vskip 0 mm ';   my $columns = scalar(@answer_bits);
    $result  = ' \vskip 0 mm \noindent \begin{tabular}{|'.'c|'x$columns.'}\hline ';
    $result .= join(' & ',@answer_bits);
    $result .= ' \\\\ \\hline \end{tabular} \vskip 0 mm ';
     } else {      } else {
  $result = '</tr></table>';   $result = '</tr></table>';
     }      }
     return $result;      return $result;
 }  }
   
   }
   
 sub showallfoils {  sub showallfoils {
     if (defined($ENV{'form.showallfoils'})) {      if (defined($env{'form.showallfoils'})) {
  my ($symb)=&Apache::lonxml::whichuser();   my ($symb)=&Apache::lonnet::whichuser();
  if ($ENV{'request.state'} eq 'construct' ||    if (($env{'request.state'} eq 'construct') || 
     ($ENV{'user.adv'} && $symb eq '')) {      ($env{'user.adv'} && $symb eq '')      ||
               ($Apache::lonhomework::viewgrades) ) {
     return 1;      return 1;
  }   }
     }      }
       if ($Apache::lonhomework::type eq 'survey') { return 1; }
     return 0;      return 0;
 }  }
   
Line 523  sub getresponse { Line 836  sub getresponse {
     'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,      'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
     'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,      'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
     'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);      'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
     if ($ENV{'form.submitted'} eq 'scantron') {      if ($env{'form.submitted'} eq 'scantron') {
  my $part  = $Apache::inputtags::part;   my $part  = $Apache::inputtags::part;
  my $id    = $Apache::inputtags::response[-1];   my $id    = $Apache::inputtags::response[-1];
  $response = $ENV{'scantron.'.($Apache::lonxml::counter+$temp-1).   $response = $env{'scantron.'.($Apache::lonxml::counter+$temp-1).
  '.answer'};   '.answer'};
  # save bubbled letter for later   # save bubbled letter for later
  $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=   $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
Line 539  sub getresponse { Line 852  sub getresponse {
     }      }
  }   }
     } else {      } else {
  $response = $ENV{$formparm};   $response = $env{$formparm};
     }      }
     return $response;      return $response;
 }  }
Line 547  sub getresponse { Line 860  sub getresponse {
 sub repetition {  sub repetition {
     my $id = $Apache::inputtags::part;      my $id = $Apache::inputtags::part;
     my $weight = &Apache::lonnet::EXT("resource.$id.weight");      my $weight = &Apache::lonnet::EXT("resource.$id.weight");
     my $repetition = int $weight/9;      if (!defined($weight) || ($weight eq '')) { $weight=1; }
     if ($weight % 9 != 0) {$repetition++;}       my $repetition = int($weight/10);
       if ($weight % 10 != 0) { $repetition++; } 
     return $repetition;      return $repetition;
 }  }
   
Line 557  sub scored_response { Line 871  sub scored_response {
     my $repetition=&repetition();      my $repetition=&repetition();
     my $score=0;      my $score=0;
     for (my $i=0;$i<$repetition;$i++) {      for (my $i=0;$i<$repetition;$i++) {
    # A is 1, B is 2, etc. (get response return 0-9 and then we add 1)
  my $increase=&Apache::response::getresponse($i+1);   my $increase=&Apache::response::getresponse($i+1);
  if ($increase ne '') { $score+=$increase+1; }   if ($increase ne '') { $score+=$increase+1; }
     }      }
Line 646  sub analyze_store_foilgroup { Line 961  sub analyze_store_foilgroup {
 sub check_if_computed {  sub check_if_computed {
     my ($token,$parstack,$safeeval,$name)=@_;      my ($token,$parstack,$safeeval,$name)=@_;
     my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);      my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
     if ($value ne $token->[2]{$name}) {      if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
  my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";   my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
  $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;   $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
     }      }
Line 690  sub pick_foil_for_concept { Line 1005  sub pick_foil_for_concept {
 sub get_response_param {  sub get_response_param {
     my ($id,$name,$default)=@_;      my ($id,$name,$default)=@_;
     my $parameter;      my $parameter;
     if ($ENV{'request.state'} eq 'construct' &&      if ($env{'request.state'} eq 'construct' &&
  defined($Apache::inputtags::params{$name})) {   defined($Apache::inputtags::params{$name})) {
  $parameter=$Apache::inputtags::params{$name};   $parameter=$Apache::inputtags::params{$name};
     } else {      } else {
Line 702  sub get_response_param { Line 1017  sub get_response_param {
     return $parameter;      return $parameter;
 }  }
   
   sub submitted {
       my ($who)=@_;
       
       # when scatron grading any submission is a submission
       if ($env{'form.submitted'} eq 'scantron') { return 1; }
       # if the caller only cared if this was a scantron submission
       if ($who eq 'scantron') { return 0; }
       # if the Submit Answer button for this particular part was pressed
       my $partid=$Apache::inputtags::part;
       if (defined($env{'form.submit_'.$partid})) { return 1; }
       # Submit All button on a .page was pressed
       if (defined($env{'form.all_submit'})) { return 1; }
       # otherwise no submission occured
       return 0;
   }
   
   sub add_to_gradingqueue {
       my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
       if (   $courseid eq ''
    || $symb eq ''
    || $env{'request.state'} eq 'construct'
    || $Apache::lonhomework::type ne 'problem') {
    return;
       }
   
       my %queue_info = ( 'type' => 'problem',
          'time' => time);
   
       if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) {
    $queue_info{'slot'}=
        $Apache::lonhomework::history{"resource.0.checkedin.slot"};
       }
   
       my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info);
       if ($result ne 'ok') {
    &Apache::lonxml::error("add_to_queue said $result");
       }
   }
   
   # basically undef and 0 (both false) mean that they still have work to do
   # and all true values mean that they can't do any more work
   #
   # a return of undef means it is unattempted
   # a return of 0 means it is attmpted and wrong but still has tries
   # a return of 1 means it is marked correct
   # a return of 2 means they have exceed maximum number of tries
   # a return of 3 means it after the answer date
   sub check_status {
       my ($id)=@_;
       if (!defined($id)) { $id=$Apache::inputtags::part; }
       my $curtime=&Apache::lonnet::EXT('system.time');
       my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
       my $duedate=&Apache::lonnet::EXT("resource.$id.duedate");
       my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
       if ( $opendate && $curtime > $opendate &&
            $duedate && $curtime > $duedate &&
            $answerdate && $curtime > $answerdate) {
           return 3;
       }
       my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
       if ($status =~ /^correct/) { return 1; }
       if (!$status) { return undef; }
       my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
       if ($maxtries eq '') { $maxtries=2; }
       my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
       if ($curtries < $maxtries) { return 0; }
       return 2;
   }
   
 1;  1;
 __END__  __END__
     
Removed from v.1.105  
changed lines
  Added in v.1.158

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