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- got the tests on whether to show hints wrong
- fixed some tags to return '';

    1: package Apache::hinttags; 
    2: 
    3: use strict;
    4: use Apache::lonnet;
    5: use capa;
    6: 
    7: sub BEGIN {
    8:   &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint'));
    9: }
   10: 
   11: 
   12: @Apache::hint::which=();
   13: sub start_hintgroup {
   14:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
   15:   my $skiptoend='0';
   16:   my $result;
   17:   
   18:   if ($target eq 'web') {
   19:     my $id=$Apache::inputtags::part;
   20:     my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
   21:     if ( $numtries eq '') { $numtries = 0; }
   22:     my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
   23:     if ( $hinttries eq '') { $hinttries = 1; }
   24:     &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
   25:     if ( $numtries < $hinttries ) {
   26:       $skiptoend='1';
   27:     } else {
   28:       if ($target eq 'web') {$result='<table bgcolor="#dddddd"><tr><td>';}
   29:     }
   30:   }
   31:   if ($skiptoend) {
   32:     &Apache::lonxml::get_all_text("/hintgroup",$$parser[$#$parser]);
   33:   }
   34:   @Apache::hint::which=();
   35:   return $result;
   36: }
   37: 
   38: sub end_hintgroup {
   39:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
   40:   my $result;
   41: 
   42:   if ($target eq 'web') {
   43:     my $id=$Apache::inputtags::part;
   44:     my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
   45:     if ( $numtries eq '') { $numtries = 0; }
   46:     my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
   47:     if ( $hinttries eq '') { $hinttries = 1; }
   48:     &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
   49:     if ( $numtries => $hinttries ) {
   50:       if ($target eq 'web') {$result='</td></tr></table>';}
   51:     }	
   52:   }
   53:   @Apache::hint::which='';
   54:   return $result;
   55: }
   56: 
   57: sub start_numericalhint {
   58:   #do everything in end, so intervening <responseparams> work
   59:   return '';
   60: }
   61: 
   62: sub end_numericalhint {
   63:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
   64:   my $result;
   65:   if ($target eq 'web') {
   66:     my $args ='';
   67:     $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
   68:     if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
   69:     my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);
   70:     my $response = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.$Apache::inputtags::response['-1'].submission"};
   71:     &Apache::lonxml::debug("hintgroup is using $response<br />\n");
   72:     my $expression="&caparesponse_check_list('".$response."','".
   73:       $$parstack[$#$parstack].
   74: 	';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
   75: 	';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
   76: 	  "');";
   77:     $result = &Apache::run::run($expression,$safeeval);
   78:     &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth");
   79:     my ($awards) = split /:/ , $result;
   80:     my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
   81:     if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
   82:     $result='';
   83:   }
   84:   return $result;
   85: }
   86: 
   87: # a part shows if it is on, if no specific parts are on, then default shows
   88: sub start_hintpart {
   89:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
   90: 
   91:   my $show ='0';
   92: 
   93:   if ($target eq 'web') {
   94:     my $args ='';
   95:     if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
   96:     my $on = &Apache::run::run("{$args;".'return $on}',$safeeval);
   97:     &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
   98:     if ( $on eq 'default' && $#Apache::hint::which == '-1') {
   99:       $show=1;
  100:     } else {
  101:       my $which;
  102:       foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
  103:     }
  104:     if (!$show) {
  105:       &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
  106:     }
  107:   } elsif ($target eq 'grade') {
  108:     &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
  109:   }
  110:   return '';
  111: }
  112: 
  113: sub end_hintpart {
  114:   return '';
  115: }
  116: 
  117: 1;
  118: __END__