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beautifying/optimizing

    1: # The LON-CAPA hint handler.
    2: #
    3: # Handles the displaying of hints.
    4: #
    5: # YEAR=2000
    6: # 12/19,12/21 Guy Albertelli
    7: # YEAR=2001
    8: # 1/4,1/5,1/22,2/7,2/19,3/31,4/5,4/10,5/31,6/2 Guy Albertelli
    9: # 8/6 Scott Harrison
   10: 
   11: package Apache::hinttags; 
   12: 
   13: use strict;
   14: use Apache::lonnet;
   15: use capa;
   16: 
   17: # ======================================================================= BEGIN
   18: sub BEGIN {
   19:   &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart',
   20: 						'numericalhint'));
   21: }
   22: 
   23: @Apache::hint::which = ();
   24: 
   25: # ============================================================ Start hint group
   26: sub start_hintgroup {
   27:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   28:     my $skiptoend = '0';
   29:     my $result;
   30:     if ($target eq 'web') {
   31: 	my $id = $Apache::inputtags::part;
   32: 	my $numtries = $Apache::lonhomework::history{"resource.$id.tries"};
   33: 	if ( $numtries eq '') { $numtries = 0; }
   34: 	my $hinttries = &Apache::lonnet::EXT("resource.$id.hinttries");
   35: 	if ( $hinttries eq '') { $hinttries = 1; }
   36: 	&Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
   37: 	if ( $numtries < $hinttries ) {
   38: 	    $skiptoend = '1';
   39: 	} else {
   40: 	    if ($target eq 'web') {
   41: 		$result = '<table bgcolor="#dddddd"><tr><td>';
   42: 	    }
   43: 	}
   44:     }
   45:     if ($skiptoend) {
   46: 	&Apache::lonxml::get_all_text("/hintgroup",$$parser[$#$parser]);
   47:     }
   48:     @Apache::hint::which = ();
   49:     return $result;
   50: }
   51: 
   52: # ============================================================== End hint group
   53: sub end_hintgroup {
   54:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   55:     my $result;
   56:     if ($target eq 'web') {
   57: 	my $id = $Apache::inputtags::part;
   58: 	my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
   59: 	if ( $numtries eq '') { $numtries = 0; }
   60: 	my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
   61: 	if ( $hinttries eq '') { $hinttries = 1; }
   62: 	&Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
   63: 	if ( $numtries => $hinttries ) {
   64: 	    if ($target eq 'web') {$result = '</td></tr></table>';}
   65: 	}	
   66:     }
   67:     @Apache::hint::which = '';
   68:     return $result;
   69: }
   70: 
   71: # ======================================================== Start numerical hint
   72: sub start_numericalhint {
   73:     #do everything in end, so intervening <responseparams> work
   74:     return '';
   75: }
   76: 
   77: # ========================================================== End numerical hint
   78: sub end_numericalhint {
   79:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   80:     my $result;
   81:     if ($target eq 'web') {
   82: 	$safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
   83: 	my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
   84: 	my $response = $Apache::lonhomework::history{'resource.'.
   85: 		       $Apache::inputtags::part.'.'.
   86: 		       $Apache::inputtags::response['-1'].'.submission'};
   87: 	&Apache::lonxml::debug("hintgroup is using $response<br />\n");
   88: 	my $expression = "&caparesponse_check_list('".$response."','".
   89:   	                 $$parstack[$#$parstack].
   90: 	                 ';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
   91: 	                 ';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
   92: 		         "');";
   93: 	$result = &Apache::run::run($expression,$safeeval);
   94: 	&Apache::lonxml::debug("$expression:result:$result:".
   95: 			       $Apache::lonxml::curdepth);
   96: 	my ($awards) = split /:/, $result;
   97: 	my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
   98: 	if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') {
   99: 	    push (@Apache::hint::which,$name); }
  100: 	$result = '';
  101:     }
  102:     return $result;
  103: }
  104: 
  105: # ======================================================= Starting part of hint
  106: # a part shows if it is on, if no specific parts are on, then default shows
  107: sub start_hintpart {
  108:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  109:     my $show ='0';
  110:     if ($target eq 'web') {
  111: 	my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
  112: 	&Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
  113: 	if ( $on eq 'default' && $#Apache::hint::which == '-1') {
  114: 	    $show=1;
  115: 	} else {
  116: 	    my $which;
  117: 	    foreach $which (@Apache::hint::which) {
  118: 		if ($which eq $on) { $show = 1; last } }
  119: 	}
  120: 	if (!$show) {
  121: 	    &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
  122: 	}
  123:     } elsif ($target eq 'grade') {
  124: 	&Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]);
  125:     }
  126:     return '';
  127: }
  128: 
  129: # ========================================================= Ending part of hint
  130: sub end_hintpart {
  131:   return '';
  132: }
  133: 
  134: 1;
  135: 
  136: __END__