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Diff for /loncom/homework/hint.pm between versions 1.31 and 1.79

version 1.31, 2002/10/29 06:02:20 version 1.79, 2024/09/29 01:58:43
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 #  #
 # 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);
   
 BEGIN {  BEGIN {
   &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint','stringhint','formulahint','optionhint','radiobuttonhint'));      &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;
     $result .= '\keephidden{';       } elsif ($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 'tex') {      } elsif ($target eq 'edit') {
     $result .= '}';    $result.=&Apache::edit::end_row().&Apache::edit::end_table();
   }      } elsif ($target eq 'tex') {
   @Apache::hint::which=();   $result .= '}';
   return $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);
     if ($token->[1] eq 'numericalhint') {   $result.=&Apache::edit::text_arg('Answer:','answer',$token);
       $result.=&Apache::edit::text_arg('Unit:','unit',$token,5);   if ($token->[1] eq 'numericalhint') {
       $result.=&Apache::edit::text_arg('Format:','format',$token,4);      $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
     } elsif ($token->[1] eq 'stringhint') {   &Apache::loncommon::help_open_topic('Physical_Units');
       $result.=&Apache::edit::select_arg('Type:','type',['cs','ci','mc'],$token);      $result.=&Apache::edit::text_arg('Format:','format',$token,4).
     } elsif ($token->[1] eq 'formulahint') {   &Apache::loncommon::help_open_topic('Numerical_Response_Format');
       $result.=&Apache::edit::text_arg('Sample Points:','samples',$token,40);   } elsif ($token->[1] eq 'formulahint') {
     }      $result.=&Apache::edit::text_arg('Sample Points:','samples',
     $result.=&Apache::edit::end_row();       $token,40).
     $result.=&Apache::edit::start_spanning_row();          &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
   } elsif ($target eq 'modified') {   }
     my $constructtag;          $result.=&Apache::edit::text_arg('Pre-Processor Subroutine:','preprocess',
     if ($token->[1] eq 'numericalhint') {                                               $token,10);
       $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,   $result.=&Apache::edit::end_row();
  'name','answer','unit','format');   $result.=&Apache::edit::start_spanning_row();
     } elsif ($token->[1] eq 'stringhint') {      } elsif ($target eq 'modified') {
       $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,   my $constructtag;
  'name','answer','type');   if ($token->[1] eq 'numericalhint') {
     } elsif ($token->[1] eq 'formulahint') {      $constructtag=&Apache::edit::get_new_args($token,$parstack,
       $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,       $safeeval,'name',
  'name','answer','samples');       'answer','unit','format','preprocess');
     }   } elsif ($token->[1] eq 'formulahint') {
     if ($constructtag) {      $constructtag=&Apache::edit::get_new_args($token,$parstack,
       $result  = &Apache::edit::rebuild_tag($token);       $safeeval,'name','answer',
       $result .= &Apache::edit::handle_insert();       'samples','preprocess');
    }
    if ($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);          my $stringify;
     &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");   if ($$tagstack[-1] eq 'formulahint') {
     my ($awards) = split /:/ , $result;              if ($$args_ref{'samples'}) {
     my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);                  $$args_ref{'type'}='fml';
     if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }                  $stringify = 1;
     $result='';              } else {
   } elsif ($target eq 'meta') {                  $$args_ref{'type'}='math';
     $result=&Apache::response::meta_package_write('numericalhint');              }
   } elsif ($target eq 'edit') {   } elsif ($$tagstack[-1] eq 'numericalhint') {
     $result.='</td></tr>'.&Apache::edit::end_table;      $$args_ref{'type'}='float';
   }              $stringify = 1;
   &Apache::response::end_hintresponse();   }
   return $result;   &Apache::caparesponse::add_in_tag_answer($parstack,$safeeval,$stringify);
    my %answer = &Apache::caparesponse::get_answer();
    my (@final_awards,@final_msgs,@ans_names);
    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 {  sub start_stringhint {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result;      #do everything in end, so intervening <responseparams> work
   if ($target eq 'meta') {      &Apache::response::start_hintresponse($parstack,$safeeval);
     $result=&Apache::response::meta_package_write('stringhint');      my $result;
   } else {      if ($target eq 'edit') {
     $result.=&start_numericalhint(@_);   $result.=&Apache::edit::tag_start($target,$token);
   }   $result.=&Apache::edit::text_arg('Name:','name',$token);
   return $result;   $result.=&Apache::edit::text_arg('Answer:','answer',$token);
    $result.=&Apache::edit::select_arg('Type:','type',
    [['cs','Case Sensitive'],['ci','Case Insensitive'],
     ['mc','Case Insensitive, Any Order'],
     ['re','Regular Expression']],$token);
           $result.=&Apache::edit::text_arg('Pre-Processor Subroutine:','preprocess',
                                                $token,10);
    $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','preprocess');
    $result  = &Apache::edit::rebuild_tag($token);
       } elsif ($target eq 'web') {
    &Apache::response::reset_params();
       }
       return $result;
 }  }
   
 sub end_stringhint {  sub end_stringhint {
   return end_numericalhint(@_);      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';
               }
               my $stringify;
               if ($$args_ref{'type'} ne 're') {
                   $stringify = 1;
               }
       &Apache::caparesponse::add_in_tag_answer($parstack,$safeeval,$stringify);
       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;
 }  }
   
 sub start_formulahint {  # reactionhint
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;  
   my $result;  sub start_reactionhint {
   if ($target eq 'meta') {      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     $result=&Apache::response::meta_package_write('formulahint');      #do everything in end, so intervening <responseparams> work
   } else {      &Apache::response::start_hintresponse($parstack,$safeeval);
     $result.=&start_numericalhint(@_);      my $result;
   }      if ($target eq 'edit') {
   return $result;          $result.=&Apache::edit::tag_start($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_formulahint {  sub end_reactionhint {
   return end_numericalhint(@_);      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);
     $result.= &Apache::edit::text_arg('On:','on',$token);   $result.= &Apache::edit::text_arg('On:','on',$token);
     $result.= &Apache::edit::end_row();   $result.= &Apache::edit::end_row();
     $result.= &Apache::edit::start_spanning_row();   $result.= &Apache::edit::start_spanning_row();
   } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,   my $constructtag=&Apache::edit::get_new_args($token,$parstack,
  'on');       $safeeval,'on');
     if ($constructtag) {   if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);      $result = &Apache::edit::rebuild_tag($token);
       $result.=&Apache::edit::handle_insert();   }
     }      }
   }      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') {
    $result.=&Apache::edit::end_row().&Apache::edit::end_table();
       }
     return $result;      return $result;
 }  }
   
Line 253  sub start_optionhint { Line 662  sub start_optionhint {
      'answer','concept');       'answer','concept');
  if ($constructtag) {   if ($constructtag) {
     $result  = &Apache::edit::rebuild_tag($token);      $result  = &Apache::edit::rebuild_tag($token);
     $result .= &Apache::edit::handle_insert();  
  }   }
     } elsif ($target eq 'meta') {      } elsif ($target eq 'meta') {
  $result=&Apache::response::meta_package_write('numericalhint');   $result=&Apache::response::meta_package_write('numericalhint');
Line 268  sub end_optionhint { Line 676  sub end_optionhint {
  my ($foilmatch,$conceptmatch)=(-1,-1);   my ($foilmatch,$conceptmatch)=(-1,-1);
  my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);   my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
  my $partid=$Apache::inputtags::part;   my $partid=$Apache::inputtags::part;
  #id submissions occured under   #id submissions occurred under
  my $submitid=$Apache::inputtags::response['-2'];   my $submitid=$Apache::inputtags::response[-1];
  my $part_id="$partid.$submitid";   my $part_id="$partid.$submitid";
  my %answer;   my %answer;
  my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);   my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
  if ($answer) {   if ($answer) {
     eval('%answer ='.$answer);      eval('%answer ='.$answer);
       &Apache::lonxml::debug("answwer hash");
     &Apache::lonhomework::showhash(%answer);      &Apache::lonhomework::showhash(%answer);
     my $response = $Apache::lonhomework::history{      my $response = $Apache::lonhomework::history{
             "resource.$part_id.submission"};              "resource.$part_id.submission"};
Line 310  sub end_optionhint { Line 719  sub end_optionhint {
      ($foilmatch    eq '-1' || $foilmatch    eq '1') ) {       ($foilmatch    eq '-1' || $foilmatch    eq '1') ) {
     push(@Apache::hint::which,$name);      push(@Apache::hint::which,$name);
  }   }
     } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }      } elsif ($target eq 'edit') {
     if ($target eq 'edit') { $result.=&Apache::edit::end_table; }   $result.=&Apache::edit::end_row().&Apache::edit::end_table();
       }
     &Apache::response::end_hintresponse();      &Apache::response::end_hintresponse();
     return $result;      return $result;
 }  }
Line 330  sub start_radiobuttonhint { Line 740  sub start_radiobuttonhint {
      'answer');       'answer');
  if ($constructtag) {   if ($constructtag) {
     $result  = &Apache::edit::rebuild_tag($token);      $result  = &Apache::edit::rebuild_tag($token);
     $result .= &Apache::edit::handle_insert();  
  }   }
     } elsif ($target eq 'meta') {      } elsif ($target eq 'meta') {
  $result=&Apache::response::meta_package_write('numericalhint');   $result=&Apache::response::meta_package_write('numericalhint');
Line 347  sub end_radiobuttonhint { Line 756  sub end_radiobuttonhint {
  my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);   my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
  eval('@answer ='.$answer);   eval('@answer ='.$answer);
  my $partid=$Apache::inputtags::part;   my $partid=$Apache::inputtags::part;
  #id submissions occured under   #id submissions occurred under
  my $submitid=$Apache::inputtags::response['-2'];   my $submitid=$Apache::inputtags::response[-1];
  my $part_id="$partid.$submitid";   my $part_id="$partid.$submitid";
  my $response = $Apache::lonhomework::history{   my $response = $Apache::lonhomework::history{
     "resource.$part_id.submission"};      "resource.$part_id.submission"};
  ($response)=&Apache::lonnet::str2hash($response);   ($response)=&Apache::lonnet::str2hash($response);
  if ($answer[0] eq 'foil' && $response eq $answer[1]) {   &Apache::lonxml::debug("response is $response");
     push (@Apache::hint::which,$name);  
    if ($answer[0] eq 'foil') {
       shift(@answer);
       foreach my $answer (@answer) {
    if ($response eq $answer) {
       push (@Apache::hint::which,$name);
       last;
    }
       }
  } elsif ($answer[0] eq 'concept') {   } elsif ($answer[0] eq 'concept') {
     if (ref($Apache::hint::radiobutton{"$part_id.concept.".$answer[1]})) {      shift(@answer);
  my @names=@{ $Apache::hint::radiobutton{"$part_id.concept.".$answer[1]} };      foreach my $answer (@answer) {
  if (grep(/^\Q$response\E$/,@names)) {   if (ref($Apache::hint::radiobutton{"$part_id.concept.".$answer})) {
     push(@Apache::hint::which,$name);      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') { $result.=&Apache::edit::end_table; }      } elsif ($target eq 'edit') {
    $result.=&Apache::edit::end_row().&Apache::edit::end_table();
       }
     &Apache::response::end_hintresponse();      &Apache::response::end_hintresponse();
     return $result;      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.1.31  
changed lines
  Added in v.1.79

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