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

Diff for /loncom/homework/hint.pm between versions 1.24 and 1.77

version 1.24, 2002/01/23 14:37:52 version 1.77, 2010/11/13 03:22:58
Line 7 Line 7
 #  #
 # This file is part of the LearningOnline Network with CAPA (LON-CAPA).  # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
 #  #
 # LON-CAPA is free software; you can redistribute it and/or modify  # LON-CAPA me&aree software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by  # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or  # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.  # (at your option) any later version.
Line 26 Line 26
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
   
   
   
 package Apache::hinttags;   package Apache::hinttags; 
   
 use strict;  use strict;
 use Apache::lonnet;  use Apache::lonnet();
 use capa;  use capa;
   use Apache::caparesponse();
   use Apache::lonmaxima();
   use Apache::lonr();
   use Apache::chemresponse();
   use Apache::response();
   use Apache::lonlocal;
   use Storable qw(dclone);
   
 sub BEGIN {  BEGIN {
   &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint'));      &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint','stringhint','formulahint','optionhint','radiobuttonhint','mathhint','customhint','reactionhint','organichint'));
 }  }
   
   
 @Apache::hint::which=();  @Apache::hint::which=();
 sub start_hintgroup {  sub start_hintgroup {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $skiptoend='0';      my $skiptoend='0';
   my $result;      my $result;
   
   if ($target eq 'web') {      if ($target eq 'web') {
     my $id=$Apache::inputtags::part;   my $id=$Apache::inputtags::part;
     my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};   my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
     if ( $numtries eq '') { $numtries = 0; }   if ( $numtries eq '') { $numtries = 0; }
     my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");   my $hinttries=&Apache::response::get_response_param($id,"hinttries",1);
     if ( $hinttries eq '') { $hinttries = 1; }   &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
     &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");   my $gradestatus=
     if ( $numtries < $hinttries ) {      $Apache::lonhomework::history{"resource.$id.solved"};
       $skiptoend='1';   my $showoncorrect=lc(&Apache::lonxml::get_param('showoncorrect',$parstack,$safeeval));
     } else {   &Apache::lonxml::debug("onc orrect $showoncorrect, $gradestatus");
       if ($target eq 'web') {$result='<table bgcolor="#dddddd"><tr><td>';}   if ( ($showoncorrect ne 'yes' && &Apache::response::show_answer()) ||
     }       ( $numtries < $hinttries) ) {
     if ($skiptoend) {      &Apache::lonxml::debug("Grabbin all");
       &Apache::lonxml::get_all_text("/hintgroup",$$parser[$#$parser]);      &Apache::lonxml::get_all_text("/hintgroup",$parser,$style);
     }   }
   } elsif ($target eq 'tex') {   &Apache::lonxml::startredirection;
     $result .= '\noindent{\it Hint: }';       } elsif ($target eq 'tex') {
   }   $result .= '\keephidden{';
   @Apache::hint::which=();      } elsif ($target eq 'edit') {
   return $result;   $result.=&Apache::edit::tag_start($target,$token);
    $result.=&Apache::edit::select_arg('Show hint even if problem Correct:','showoncorrect',['no','yes'],$token);
    $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'showoncorrect');
          if ($constructtag) {
              $result =&Apache::edit::rebuild_tag($token);
          }
       }
       @Apache::hint::which=();
       if (($#Apache::functionplotresponse::failedrules>=0) && ($target eq 'web')) {
           @Apache::hint::which=@Apache::functionplotresponse::failedrules;
           undef @Apache::functionplotresponse::failedrules;
       }
       return $result;
 }  }
   
 sub end_hintgroup {  sub end_hintgroup {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result;      my $result;
   
   if ($target eq 'web') {      if ($target eq 'web') {
     my $id=$Apache::inputtags::part;   my $id=$Apache::inputtags::part;
     my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};   my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
     if ( $numtries eq '') { $numtries = 0; }   if ( $numtries eq '') { $numtries = 0; }
     my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");   my $hinttries=&Apache::response::get_response_param($id,"hinttries",1);
     if ( $hinttries eq '') { $hinttries = 1; }   &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
     &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");   my $hinttext=&Apache::lonxml::endredirection;
     if ( $numtries >= $hinttries ) {   if ($Apache::lonhomework::type ne 'exam' &&
       $result='</td></tr></table>';      $numtries >= $hinttries && $hinttext =~/\S/) {
     }      $result='<table bgcolor="#dddddd"><tr><td>'.
   } elsif ($target eq 'edit') {   $hinttext.'</td></tr></table>';
     $result.=&Apache::edit::end_table();   }
   }      } elsif ($target eq 'edit') {
   @Apache::hint::which=();   $result.=&Apache::edit::end_row().&Apache::edit::end_table();
   return $result;      } elsif ($target eq 'tex') {
    $result .= '}';
       }
       @Apache::hint::which=();
       return $result;
 }  }
   
 sub start_numericalhint {  sub start_numericalhint {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   #do everything in end, so intervening <responseparams> work      #do everything in end, so intervening <responseparams> work
   &Apache::response::start_hintresponse($parstack,$safeeval);      &Apache::response::start_hintresponse($parstack,$safeeval);
   my $result;      &Apache::caparesponse::push_answer();
   if ($target eq 'edit') {      my $result;
     $result.=&Apache::edit::tag_start($target,$token);      if ($target eq 'edit') {
     $result.=&Apache::edit::text_arg('Name:','name',$token);   $result.=&Apache::edit::tag_start($target,$token);
     $result.=&Apache::edit::text_arg('Answer:','answer',$token);   $result.=&Apache::edit::text_arg('Name:','name',$token);
     $result.=&Apache::edit::text_arg('Unit:','unit',$token,5);   $result.=&Apache::edit::text_arg('Answer:','answer',$token);
     $result.=&Apache::edit::text_arg('Format:','format',$token,4);   if ($token->[1] eq 'numericalhint') {
     $result.='</td></tr><tr><td colspan="3">';      $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
   } elsif ($target eq 'modified') {   &Apache::loncommon::help_open_topic('Physical_Units');
     my $constructtag=      $result.=&Apache::edit::text_arg('Format:','format',$token,4).
       &Apache::edit::get_new_args($token,$parstack,$safeeval,   &Apache::loncommon::help_open_topic('Numerical_Response_Format');
   'name','answer','unit', 'format');   } elsif ($token->[1] eq 'formulahint') {
     if ($constructtag) {      $result.=&Apache::edit::text_arg('Sample Points:','samples',
       $result  = &Apache::edit::rebuild_tag($token);       $token,40).
       $result .= &Apache::edit::handle_insert();          &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
    }
    $result.=&Apache::edit::end_row();
    $result.=&Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag;
    if ($token->[1] eq 'numericalhint') {
       $constructtag=&Apache::edit::get_new_args($token,$parstack,
        $safeeval,'name',
        'answer','unit','format');
    } elsif ($token->[1] eq 'formulahint') {
       $constructtag=&Apache::edit::get_new_args($token,$parstack,
        $safeeval,'name','answer',
        'samples');
    }
    if ($constructtag) {
       $result  = &Apache::edit::rebuild_tag($token);
    }
       } elsif ($target eq 'web') {
    &Apache::response::reset_params();
     }      }
   }      return $result;
   return $result;  
 }  }
   
 sub end_numericalhint {  sub end_numericalhint {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result;      my $result;
   if ($target eq 'web') {      if ($target eq 'web') {
     $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);   if (!$Apache::lonxml::default_homework_loaded) {
     my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);      &Apache::lonxml::default_homework_load($safeeval);
     &Apache::response::setup_params('numericalhint');   }
     my $partid=$Apache::inputtags::part;   $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
     my $id=$Apache::inputtags::response['-1'];   my $hint_name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
     #id submissions occured under   &Apache::response::setup_params('numericalhint',$safeeval);
     my $submitid=$Apache::inputtags::response['-2'];  
     my $response = $Apache::lonhomework::history{   my $partid=$Apache::inputtags::part;
    my $id=$Apache::inputtags::hint[-1];
    #id submissions occurred under
    my $submitid=$Apache::inputtags::response[-1];
   
    my $response = $Apache::lonhomework::history{
     "resource.$partid.$submitid.submission"};      "resource.$partid.$submitid.submission"};
     &Apache::lonxml::debug("hintgroup is using $response<br />\n");   &Apache::lonxml::debug("hintgroup is using $response<br />\n");
     #build safe space expression  
     my $expression="&caparesponse_check_list('".$response."','".   my @args = ('type','tol','sig','ans_fmt','unit','calc','samples');
       $$parstack[$#$parstack];   my $args_ref =
     #need to get all possible parms      &Apache::caparesponse::setup_capa_args($safeeval,$parstack,
     foreach my $key (keys(%Apache::inputtags::params)) {     \@args,$response);
       $expression.= ';my $'. #'  
  $key.'="'.$Apache::inputtags::params{$key}.'"';   my $hideunit=&Apache::response::get_response_param($partid.'_'.$submitid,'turnoffunit');
     }   if (lc($hideunit) eq "yes") { delete($$args_ref{'unit'}); }
     $expression.="');";  
     $result = &Apache::run::run($expression,$safeeval);   if ($$tagstack[-1] eq 'formulahint') {
     &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");              if ($$args_ref{'samples'}) {
     my ($awards) = split /:/ , $result;                  $$args_ref{'type'}='fml';
     my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);              } else {
     if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }                  $$args_ref{'type'}='math';
     $result='';              }
   } elsif ($target eq 'meta') {   } elsif ($$tagstack[-1] eq 'numericalhint') {
     $result=&Apache::response::meta_package_write('numericalhint');      $$args_ref{'type'}='float';
   } elsif ($target eq 'edit') {   }
     $result.='</td></tr>'.&Apache::edit::end_table;   &Apache::caparesponse::add_in_tag_answer($parstack,$safeeval);
   }   my %answer = &Apache::caparesponse::get_answer();
   &Apache::response::end_hintresponse();   my (@final_awards,@final_msgs,@ans_names);
   return $result;   foreach my $ans_name (keys(%answer)) {
       &Apache::lonxml::debug(" doing $ans_name with ".join(':',@{ $answer{$ans_name}{'answers'} }));
   
       ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=
    dclone($answer{$ans_name});
       &Apache::caparesponse::setup_capa_response($args_ref,$response);
       my ($result,@msgs) = 
    &Apache::run::run("&caparesponse_check_list()",$safeeval);
       &Apache::lonxml::debug("checking $ans_name $result with $response");
       &Apache::lonxml::debug('msgs are '.join(':',@msgs));
       my ($awards)=split(/:/,$result);
       my @awards= split(/,/,$awards);
       my ($ad, $msg) = 
    &Apache::inputtags::finalizeawards(\@awards,\@msgs);
       push(@final_awards,$ad);
       push(@final_msgs,$msg);
       push(@ans_names,$ans_name);
    }
    my ($ad, $msg, $ans_name) =
       &Apache::inputtags::finalizeawards(\@final_awards,
          \@final_msgs,
          \@ans_names,1);
    if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') {
       push(@Apache::hint::which,$hint_name);
    }
    $result='';
       } elsif ($target eq 'meta') {
    $result=&Apache::response::meta_package_write($token->[1]);
       } elsif ($target eq 'edit') {
    $result.=&Apache::edit::end_row().&Apache::edit::end_table();
       }
       &Apache::caparesponse::pop_answer();
       &Apache::response::end_hintresponse();
       return $result;
   }
   
   sub start_formulahint {
       return &start_numericalhint(@_);
   }
   
   sub end_formulahint {
       return &end_numericalhint(@_);
   }
   
   sub start_mathhint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       #do everything in end, so intervening <responseparams> and <answer> work
       &Apache::response::start_hintresponse($parstack,$safeeval);
       &Apache::lonxml::register('Apache::response',('answer'));
       my $result;
       if ($target eq 'edit') {
           $result.=&Apache::edit::tag_start($target,$token);
           $result.=&Apache::edit::text_arg('Name:','name',$token);
           $result.=&Apache::edit::select_arg('Algebra System:',
                                              'cas',
                                              ['maxima','R'],
                                              $token);
           $result.=&Apache::edit::text_arg('Argument Array:',
                                            'args',$token);
           $result.=&Apache::edit::end_row();
           $result.=&Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
           my $constructtag;
           $constructtag=&Apache::edit::get_new_args($token,$parstack,
                                                     $safeeval,'name','cas',
                                                     'args');
           $result  = &Apache::edit::rebuild_tag($token);
       } elsif ($target eq 'web') {
           &Apache::response::reset_params();
       }
       return $result;
   }
   
   sub end_mathhint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'web') {
           if (!$Apache::lonxml::default_homework_loaded) {
               &Apache::lonxml::default_homework_load($safeeval);
           }
    my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
           &Apache::response::setup_params('mathhint',$safeeval);
           my $partid=$Apache::inputtags::part;
           my $submitid=$Apache::inputtags::response[-1];
           my $response = $Apache::lonhomework::history{
                               "resource.$partid.$submitid.submission"};
   
    my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
    my $award;
    if ($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 ($cas eq 'R') {
               my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
               $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args);
           }
           if ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS') {
               push (@Apache::hint::which,$name);
           }
           $result='';
       } elsif ($target eq 'meta') {
           $result=&Apache::response::meta_package_write($token->[1]);
       } elsif ($target eq 'edit') {
           $result.=&Apache::edit::end_row().&Apache::edit::end_table();
       }
       pop(@Apache::response::custom_answer);
       pop(@Apache::response::custom_answer_type);
       &Apache::response::end_hintresponse();
       return $result;
   }
   
   sub start_customhint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       #do everything in end, so intervening <responseparams> and <answer> work
       &Apache::response::start_hintresponse($parstack,$safeeval);
       &Apache::lonxml::register('Apache::response',('answer'));
       my $result;
       if ($target eq 'edit') {
           $result.=&Apache::edit::tag_start($target,$token);
           $result.=&Apache::edit::text_arg('Name:','name',$token);
           $result.=&Apache::edit::end_row();
           $result.=&Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
           my $constructtag;
           $constructtag=&Apache::edit::get_new_args($token,$parstack,
                                                     $safeeval,'name');
           $result  = &Apache::edit::rebuild_tag($token);
       } elsif ($target eq 'web') {
           &Apache::response::reset_params();
       }
       return $result;
   }
   
   sub end_customhint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'web') {
           if (!$Apache::lonxml::default_homework_loaded) {
               &Apache::lonxml::default_homework_load($safeeval);
           }
    my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
           &Apache::response::setup_params('customhint',$safeeval);
           my $partid=$Apache::inputtags::part;
           my $submitid=$Apache::inputtags::response[-1];
           my $response = $Apache::lonhomework::history{
                               "resource.$partid.$submitid.submission"};
           my $award;
    if ( $response =~ /[^\s]/ && 
        $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') {
       if (!$Apache::lonxml::default_homework_loaded) {
    &Apache::lonxml::default_homework_load($safeeval);
       }
       ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
    $response;
       
       $award = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval);
    }
           if ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS') {
               push (@Apache::hint::which,$name);
           }
           $result='';
       } elsif ($target eq 'meta') {
           $result=&Apache::response::meta_package_write($token->[1]);
       } elsif ($target eq 'edit') {
           $result.=&Apache::edit::end_row().&Apache::edit::end_table();
       }
       pop(@Apache::response::custom_answer);
       pop(@Apache::response::custom_answer_type);
       &Apache::response::end_hintresponse();
       return $result;
   }
   
   sub start_stringhint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       #do everything in end, so intervening <responseparams> work
       &Apache::response::start_hintresponse($parstack,$safeeval);
       my $result;
       if ($target eq 'edit') {
    $result.=&Apache::edit::tag_start($target,$token);
    $result.=&Apache::edit::text_arg('Name:','name',$token);
    $result.=&Apache::edit::text_arg('Answer:','answer',$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::end_row();
    $result.=&Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag;
    $constructtag=&Apache::edit::get_new_args($token,$parstack,
     $safeeval,'name','answer',
     'type');
    $result  = &Apache::edit::rebuild_tag($token);
       } elsif ($target eq 'web') {
    &Apache::response::reset_params();
       }
       return $result;
   }
   
   sub end_stringhint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'web') {
    if (!$Apache::lonxml::default_homework_loaded) {
       &Apache::lonxml::default_homework_load($safeeval);
    }
    $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
    my $hint_name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
    &Apache::response::setup_params('stringhint',$safeeval);
    my $partid=$Apache::inputtags::part;
    my $id=$Apache::inputtags::hint[-1];
    #id submissions occurred under
    my $submitid=$Apache::inputtags::response[-1];
    my $response = $Apache::lonhomework::history{
       "resource.$partid.$submitid.submission"};
    &Apache::lonxml::debug("hintgroup is using $response<br />\n");
    my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
    my ($ad,$msg);
    if ($type eq 're' ) {
       my $answer=&Apache::lonxml::get_param('answer',$parstack,
     $safeeval);
       ${$safeeval->varglob('LONCAPA::response')}=$response;
       my $compare='=';
       if ($answer=~/^\s*NOT\s*/) {
    $answer=~s/^\s*NOT\s*//;
    $compare='!';
       }
       my $test='$LONCAPA::response'.$compare.'~m'.$answer;
       &Apache::lonxml::debug("test $test");
       $result = &Apache::run::run("return $test",$safeeval);
       &Apache::lonxml::debug("current $response");
       &Apache::lonxml::debug("current $answer");
       $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
    } else { 
       my @args = ('type');
       my $args_ref = 
    &Apache::caparesponse::setup_capa_args($safeeval,$parstack,
          \@args,$response);
               if ($$args_ref{'type'} eq '') {
                   $$args_ref{'type'} = 'ci';
               }
       &Apache::caparesponse::add_in_tag_answer($parstack,$safeeval);
       my (@final_awards,@final_msgs,@ans_names);
       my %answer = &Apache::caparesponse::get_answer();
       foreach my $ans_name (keys(%answer)) {
    &Apache::lonxml::debug(" doing $ans_name with ".join(':',@{ $answer{$ans_name}{'answers'} }));
    ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$ans_name});
    my ($result, @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
    &Apache::lonxml::debug('msgs are'.join(':',@msgs));
    my ($awards) = split(/:/,$result);
    my (@awards) = split(/,/,$awards);
    ($ad,$msg) = 
       &Apache::inputtags::finalizeawards(\@awards,\@msgs);
    push(@final_awards,$ad);
    push(@final_msgs,$msg);
    push(@ans_names,$ans_name);
    &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
       }
       my ($ad, $msg, $ans_name) = 
    &Apache::inputtags::finalizeawards(\@final_awards,
      \@final_msgs,
      \@ans_names,1);
    }
    if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { 
       push(@Apache::hint::which,$hint_name);
    }
    $result='';
       } elsif ($target eq 'meta') {
    $result=&Apache::response::meta_package_write($token->[1]);
       } elsif ($target eq 'edit') {
    $result.=&Apache::edit::end_row().&Apache::edit::end_table();
       }
       &Apache::response::end_hintresponse();
       return $result;
   }
   
   # reactionhint
   
   sub start_reactionhint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       #do everything in end, so intervening <responseparams> work
       &Apache::response::start_hintresponse($parstack,$safeeval);
       my $result;
       if ($target eq 'edit') {
           $result.=&Apache::edit::tag_start($target,$token);
           $result.=&Apache::edit::text_arg('Name:','name',$token);
           $result.=&Apache::edit::text_arg('Answer:','answer',$token);
           $result.=&Apache::edit::end_row();
           $result.=&Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
           my $constructtag;
           $constructtag=&Apache::edit::get_new_args($token,$parstack,
                                                     $safeeval,'name','answer',
                                                     );
           $result  = &Apache::edit::rebuild_tag($token);
       } elsif ($target eq 'web') {
           &Apache::response::reset_params();
       }
       return $result;
   }
   
   sub end_reactionhint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'web') {
           if (!$Apache::lonxml::default_homework_loaded) {
               &Apache::lonxml::default_homework_load($safeeval);
           }
           my $hint_name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
           &Apache::response::setup_params('reactionhint',$safeeval);
           my $partid=$Apache::inputtags::part;
           my $id=$Apache::inputtags::hint[-1];
           #id submissions occurred under
           my $submitid=$Apache::inputtags::response[-1];
           my $response = $Apache::lonhomework::history{
                               "resource.$partid.$submitid.submission"};
           &Apache::lonxml::debug("hintgroup is using $response<br />\n");
           my $answer=&Apache::lonxml::get_param('answer',$parstack,
                                                     $safeeval);
           &Apache::lonxml::debug("current $response");
           &Apache::lonxml::debug("current $answer");
           if (&Apache::chemresponse::chem_standard_order($response) eq 
               &Apache::chemresponse::chem_standard_order($answer)) {
               push(@Apache::hint::which,$hint_name);
           }
           $result='';
       } elsif ($target eq 'meta') {
           $result=&Apache::response::meta_package_write($token->[1]);
       } elsif ($target eq 'edit') {
           $result.=&Apache::edit::end_row().&Apache::edit::end_table();
       }
       &Apache::response::end_hintresponse();
       return $result;
   }
   
   # organichint
   
   sub start_organichint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       #do everything in end, so intervening <responseparams> work
       &Apache::response::start_hintresponse($parstack,$safeeval);
       my $result;
       if ($target eq 'edit') {
           $result.=&Apache::edit::tag_start($target,$token);
           $result.=&Apache::edit::text_arg('Name:','name',$token);
           $result.=&Apache::edit::text_arg('Answer:','answer',$token);
           $result.=&Apache::edit::end_row();
           $result.=&Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
           my $constructtag;
           $constructtag=&Apache::edit::get_new_args($token,$parstack,
                                                     $safeeval,'name','answer',
                                                     );
           $result  = &Apache::edit::rebuild_tag($token);
       } elsif ($target eq 'web') {
           &Apache::response::reset_params();
       }
       return $result;
   }
   
   sub end_organichint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'web') {
           if (!$Apache::lonxml::default_homework_loaded) {
               &Apache::lonxml::default_homework_load($safeeval);
           }
           my $hint_name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
           &Apache::response::setup_params('organichint',$safeeval);
           my $partid=$Apache::inputtags::part;
           my $id=$Apache::inputtags::hint[-1];
           #id submissions occurred under
           my $submitid=$Apache::inputtags::response[-1];
           my $response = $Apache::lonhomework::history{
                               "resource.$partid.$submitid.submission"};
           &Apache::lonxml::debug("hintgroup is using $response<br />\n");
           my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
           my %previous = &Apache::response::check_for_previous($response,$partid,$id);
           foreach my $answer (@answers) {
               &Apache::lonxml::debug("submitted a $response for $answer<br \>\n");
               if ($response eq $answer) {
                  push(@Apache::hint::which,$hint_name);
                  last;
               }
           }
           $result='';
       } elsif ($target eq 'meta') {
           $result=&Apache::response::meta_package_write($token->[1]);
       } elsif ($target eq 'edit') {
           $result.=&Apache::edit::end_row().&Apache::edit::end_table();
       }
       &Apache::response::end_hintresponse();
       return $result;
 }  }
   
   
 # a part shows if it is on, if no specific parts are on, then default shows  # a part shows if it is on, if no specific parts are on, then default shows
 sub start_hintpart {  sub start_hintpart {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   
   my $show ='0';      my $show ='0';
   my $result = '';      my $result = '';
   if ($target eq 'web') {      if ($target eq 'web') {
     my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);   my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
     &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");   &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
     if ( $on eq 'default' && $#Apache::hint::which == '-1') {   if ( $on eq 'default' && $#Apache::hint::which == '-1') {
       $show=1;      $show=1;
     } else {   } else {
       my $which;      my $which;
       foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }      foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
     }   }
     if (!$show) {   if (!$show) {
       &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);      &Apache::lonxml::get_all_text("/hintpart",$parser,$style);
     }   }
   } elsif ($target eq 'grade') {      } elsif ($target eq 'grade') {
     &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);   &Apache::lonxml::get_all_text("/hintpart",$parser,$style);
   } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
     $result.= &Apache::edit::tag_start($target,$token,   $result.= &Apache::edit::tag_start($target,$token);
        &Apache::lonxml::description($token));   $result.= &Apache::edit::text_arg('On:','on',$token);
     $result.= &Apache::edit::text_arg('On:','on',$token).'</td></tr><tr><td colspan="3">';   $result.= &Apache::edit::end_row();
   } elsif ($target eq 'modified') {   $result.= &Apache::edit::start_spanning_row();
     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,      } elsif ($target eq 'modified') {
  'on');   my $constructtag=&Apache::edit::get_new_args($token,$parstack,
     if ($constructtag) {       $safeeval,'on');
       $result = &Apache::edit::rebuild_tag($token);   if ($constructtag) {
       $result.=&Apache::edit::handle_insert();      $result = &Apache::edit::rebuild_tag($token);
    }
     }      }
   }      return $result;
   return $result;  
 }  }
   
 sub end_hintpart {  sub end_hintpart {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   my $result;      my $result;
   if ($target eq 'edit') { $result.=&Apache::edit::end_table; }      if ($target eq 'edit') {
   return $result;   $result.=&Apache::edit::end_row().&Apache::edit::end_table();
       }
       return $result;
   }
   
   sub start_optionhint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       &Apache::response::start_hintresponse($parstack,$safeeval);
       if ($target eq 'edit') {
    $result.=&Apache::edit::tag_start($target,$token);
    $result.=&Apache::edit::text_arg('Name:','name',$token);
    $result.=&Apache::edit::text_arg('Answer:','answer',$token,40);
    $result.=&Apache::edit::text_arg('Concept:','concept',$token,50);
       } elsif ($target eq 'modified') {
    my $constructtag=&Apache::edit::get_new_args($token,$parstack,
        $safeeval,'name',
        'answer','concept');
    if ($constructtag) {
       $result  = &Apache::edit::rebuild_tag($token);
    }
       } elsif ($target eq 'meta') {
    $result=&Apache::response::meta_package_write('numericalhint');
       }
       return $result;
   }
   
   sub end_optionhint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       if ($target eq 'web') {
    my ($foilmatch,$conceptmatch)=(-1,-1);
    my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
    my $partid=$Apache::inputtags::part;
    #id submissions occurred under
    my $submitid=$Apache::inputtags::response[-1];
    my $part_id="$partid.$submitid";
    my %answer;
    my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
    if ($answer) {
       eval('%answer ='.$answer);
       &Apache::lonxml::debug("answwer hash");
       &Apache::lonhomework::showhash(%answer);
       my $response = $Apache::lonhomework::history{
               "resource.$part_id.submission"};
       my %response=&Apache::lonnet::str2hash($response);
       &Apache::lonhomework::showhash(%response);
       foreach my $foil (keys(%answer)) {
    $foilmatch=1;
    if ($answer{$foil} ne $response{$foil}) {$foilmatch=0;last;}
       }
    }
    my %concept;
    my $constr=&Apache::lonxml::get_param('concept',$parstack,$safeeval);
    if ( $constr ) { eval('%concept ='.$constr); }
    my $response = $Apache::lonhomework::history{
    "resource.$part_id.submissiongrading"};
    my %response=&Apache::lonnet::str2hash($response);
    foreach my $concept (keys(%concept)) {
       my $compare;
       if ($concept{$concept} eq 'correct') {$compare=1}else{$compare=0}
       $conceptmatch=1;
       if (ref($Apache::hint::option{"$part_id.concepts"})) {
    foreach my $foil (@{ $Apache::hint::option{"$part_id.concept.$concept"} }) {
       &Apache::lonxml::debug("compare -$foil- -$response{$foil}-$compare-");
       if ( exists($response{$foil}) && 
    $response{$foil} ne $compare) {$conceptmatch=0;last;}
    }
       } else {
    $conceptmatch=0;
       }
       if ($conceptmatch eq '0') { last; }
    }
    if ( ($conceptmatch eq '-1' || $conceptmatch eq '1') &&
        ($foilmatch    eq '-1' || $foilmatch    eq '1') ) {
       push(@Apache::hint::which,$name);
    }
       } elsif ($target eq 'edit') {
    $result.=&Apache::edit::end_row().&Apache::edit::end_table();
       }
       &Apache::response::end_hintresponse();
       return $result;
   }
   
   sub start_radiobuttonhint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       &Apache::response::start_hintresponse($parstack,$safeeval);
       if ($target eq 'edit') {
    $result.=&Apache::edit::tag_start($target,$token);
    $result.=&Apache::edit::text_arg('Name:','name',$token);
    $result.=&Apache::edit::text_arg('Answer:','answer',$token);
       } elsif ($target eq 'modified') {
    my $constructtag=&Apache::edit::get_new_args($token,$parstack,
        $safeeval,'name',
        'answer');
    if ($constructtag) {
       $result  = &Apache::edit::rebuild_tag($token);
    }
       } elsif ($target eq 'meta') {
    $result=&Apache::response::meta_package_write('numericalhint');
       }
       return $result;
 }  }
   
   sub end_radiobuttonhint {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       if ($target eq 'web') {
    my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
    my @answer;
    my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
    eval('@answer ='.$answer);
    my $partid=$Apache::inputtags::part;
    #id submissions occurred under
    my $submitid=$Apache::inputtags::response[-1];
    my $part_id="$partid.$submitid";
    my $response = $Apache::lonhomework::history{
       "resource.$part_id.submission"};
    ($response)=&Apache::lonnet::str2hash($response);
    &Apache::lonxml::debug("response is $response");
   
    if ($answer[0] eq 'foil') {
       shift(@answer);
       foreach my $answer (@answer) {
    if ($response eq $answer) {
       push (@Apache::hint::which,$name);
       last;
    }
       }
    } elsif ($answer[0] eq 'concept') {
       shift(@answer);
       foreach my $answer (@answer) {
    if (ref($Apache::hint::radiobutton{"$part_id.concept.".$answer})) {
       my @names=@{ $Apache::hint::radiobutton{"$part_id.concept.".$answer} };
       if (grep(/^\Q$response\E$/,@names)) {
    push(@Apache::hint::which,$name);
    last;
       }
    }
       }
    }
       } elsif ($target eq 'edit') {
    $result.=&Apache::edit::end_row().&Apache::edit::end_table();
       }
       &Apache::response::end_hintresponse();
       return $result;
   }
 1;  1;
 __END__  __END__
   
   
   =head1 NAME
   
   Apache::hinttags
   
   =head1 SYNOPSIS
   
   This handler coordinates the delivery of hints to students working on LON-CAPA problems and assignments.
   
   This is part of the LearningOnline Network with CAPA project
   described at http://www.lon-capa.org.
   
   =head1 SUBROUTINES
   
   =over
   
   =item start_hintgroup()
   
   =item end_hintgroup()
   
   =item start_numericalhint()
   
   =item end_numericalhint()
   
   =item start_formulahint()
   
   =item end_formulahint()
   
   =item start_mathhint()
   
   =item end_mathhint()
   
   =item start_customhint()
   
   =item end_customhint()
   
   =item start_stringhint()
   
   =item end_stringhint()
   
   =item start_hintpart()
   
   =item end_hintpart()
   
   =item start_optionhint()
   
   =item end_optionhint()
   
   =item start_radiobuttonhint()
   
   =item end_radiobuttonhint()
   
   =back
   
   =cut
Removed from v.1.24  
changed lines
  Added in v.1.77

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.