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Diff for /loncom/homework/hint.pm between versions 1.1 and 1.14

version 1.1, 2000/12/19 23:22:22 version 1.14, 2001/08/06 17:12:29
Line 1 Line 1
   # The LON-CAPA hint handler.
   #
   # Handles the displaying of hints.
   #
   # YEAR=2000
   # 12/19,12/21 Guy Albertelli
   # YEAR=2001
   # 1/4,1/5,1/22,2/7,2/19,3/31,4/5,4/10,5/31,6/2 Guy Albertelli
   # 8/6 Scott Harrison
   
 package Apache::hinttags;   package Apache::hinttags; 
   
 use strict;  use strict;
 use Apache::lonnet;  use Apache::lonnet;
   use capa;
   
   # ======================================================================= BEGIN
 sub BEGIN {  sub BEGIN {
   &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart'));    &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart',
    'numericalhint'));
 }  }
   
 #currently hintgroup has no purpose  @Apache::hint::which = ();
   
   # ============================================================ Start hint group
 sub start_hintgroup {  sub start_hintgroup {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $skiptoend = '0';
       my $result;
       if ($target eq 'web') {
    my $id = $Apache::inputtags::part;
    my $numtries = $Apache::lonhomework::history{"resource.$id.tries"};
    if ( $numtries eq '') { $numtries = 0; }
    my $hinttries = &Apache::lonnet::EXT("resource.$id.hinttries");
    if ( $hinttries eq '') { $hinttries = 1; }
    &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
    if ( $numtries < $hinttries ) {
       $skiptoend = '1';
    } else {
       if ($target eq 'web') {
    $result = '<table bgcolor="#dddddd"><tr><td>';
       }
    }
       }
       if ($skiptoend) {
    &Apache::lonxml::get_all_text("/hintgroup",$$parser[$#$parser]);
       }
       @Apache::hint::which = ();
       return $result;
 }  }
   
   # ============================================================== End hint group
 sub end_hintgroup {  sub end_hintgroup {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'web') {
    my $id = $Apache::inputtags::part;
    my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
    if ( $numtries eq '') { $numtries = 0; }
    my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
    if ( $hinttries eq '') { $hinttries = 1; }
    &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
    if ( $numtries => $hinttries ) {
       if ($target eq 'web') {$result = '</td></tr></table>';}
    }
       }
       @Apache::hint::which = '';
       return $result;
 }  }
   
 sub start_hintpart {  # ======================================================== Start numerical hint
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;  sub start_numericalhint {
       #do everything in end, so intervening <responseparams> work
       return '';
   }
   
   my $show ='0';  # ========================================================== End numerical hint
   if ($target ne 'meta' && $target ne 'grade') {  sub end_numericalhint {
     my $args ='';      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }      my $result;
     my $on = &Apache::run::run("{$args;".'return $on}',$safeeval);      if ($target eq 'web') {
     if ( $on eq 'default') {   $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
       $show='1';   my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
     } else {   my $response = $Apache::lonhomework::history{'resource.'.
       my (%results) = &Apache::run::run("{$args; return ".'\%'.$on,$safeeval);         $Apache::inputtags::part.'.'.
       my $key;         $Apache::inputtags::response['-1'].'.submission'};
       foreach $key (keys %results) {   &Apache::lonxml::debug("hintgroup is using $response<br />\n");
  &Apache::lonxml::debug("Got $key");   my $expression = "&caparesponse_check_list('".$response."','".
       }                    $$parstack[$#$parstack].
                    ';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
                    ';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
            "');";
    $result = &Apache::run::run($expression,$safeeval);
    &Apache::lonxml::debug("$expression:result:$result:".
          $Apache::lonxml::curdepth);
    my ($awards) = split /:/, $result;
    my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
    if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') {
       push (@Apache::hint::which,$name); }
    $result = '';
     }      }
     if (!$show) {      return $result;
       &Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]);  }
   
   # ======================================================= Starting part of hint
   # a part shows if it is on, if no specific parts are on, then default shows
   sub start_hintpart {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $show ='0';
       if ($target eq 'web') {
    my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
    &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
    if ( $on eq 'default' && $#Apache::hint::which == '-1') {
       $show=1;
    } else {
       my $which;
       foreach $which (@Apache::hint::which) {
    if ($which eq $on) { $show = 1; last } }
    }
    if (!$show) {
       &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
    }
       } elsif ($target eq 'grade') {
    &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
     }      }
   } else {      return '';
     &Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]);  
   }  
   return '';  
 }  }
   
   # ========================================================= Ending part of hint
 sub end_hintpart {  sub end_hintpart {
     return '';
 }  }
   
 1;  1;
   
 __END__  __END__
Removed from v.1.1  
changed lines
  Added in v.1.14

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