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Up to [LON-CAPA] / loncom / homework / caparesponse

- moved funtionality around, all responses should call start_response, and
all end responses should call end_response, similarly from inputtags

    1: # The LearningOnline Network with CAPA
    2: # caparesponse definition
    3: 
    4: package Apache::caparesponse;
    5: use strict;
    6: use capa;
    7: 
    8: sub BEGIN {
    9:   &Apache::lonxml::register('Apache::caparesponse',('caparesponse'));
   10: }
   11: 
   12: $Apache::caparesponse::result='';
   13: sub start_caparesponse {
   14:   my ($target,$token,$parstack,$parser,$safeeval)=@_;
   15:   my $id = &Apache::response::start_response($parstack,$safeeval);
   16:   return '';
   17: }
   18: 
   19: sub end_caparesponse {
   20:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
   21:   my $result = '';
   22:   if ( $target eq 'grade' ) {
   23:     if ( defined $ENV{'form.submit'}) {
   24:       $Apache::caparesponse::result='';
   25:       $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
   26:       my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
   27:       if ( $response =~ /[^\s]/) {
   28: 	#check_for_previous($response,$id,$response);
   29: 	$Apache::lonhomework::results{"resource.submission.$Apache::inputtags::part.$Apache::inputtags::response['-1']"}=$response;
   30: 	&Apache::lonxml::debug("submitted a $response<br>\n");
   31: 	&Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
   32: 	my $expression="&caparesponse_check('".$response."','".
   33: 	  $$parstack[$#$parstack].
   34: 	    ';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
   35: 	      ';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
   36: 		"');";
   37: 	$result = &Apache::run::run($expression,$safeeval);
   38: 	my ($ad) = split /:/ , $result;
   39: 	$Apache::lonhomework::results{"resource.awarddetail.$Apache::inputtags::part.$Apache::inputtags::response['-1']"}=$ad;
   40: 	&Apache::lonxml::debug("$expression");
   41: 	&Apache::lonxml::debug("\n<br>result:$Apache::caparesponse::result:$result:$Apache::lonxml::curdepth<br>\n");
   42:       }
   43:     }
   44:   } else {
   45:     #$result .= "The correct answer is ".&Apache::run::run("{$$parstack['-1'];".'return $answer}',$safeeval)."\n";
   46:   }
   47:   #Apache::lonxml::debug("\n<br>\nreal end caparesponse<br>\n");
   48:   &Apache::response::end_response;
   49:   return $result;
   50: }
   51: 
   52: 1;
   53: __END__
   54: