--- loncom/homework/caparesponse/caparesponse.pm	2000/12/19 23:22:22	1.21
+++ loncom/homework/caparesponse/caparesponse.pm	2001/07/19 21:26:22	1.35
@@ -6,53 +6,144 @@ use strict;
 use capa;
 
 sub BEGIN {
-  &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse'));
+  &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse'));
 }
 
-$Apache::caparesponse::result='';
 sub start_caparesponse {
-  my ($target,$token,$parstack,$parser,$safeeval)=@_;
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   my $id = &Apache::response::start_response($parstack,$safeeval);
   return '';
 }
 
 sub end_caparesponse {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result = '';
   if ( $target eq 'grade' ) {
-    if ( defined $ENV{'form.submit'}) {
-      $Apache::caparesponse::result='';
+    if ( defined $ENV{'form.submitted'}) {
       $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
       my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
       if ( $response =~ /[^\s]/) {
-	#check_for_previous($response,$id,$response);
-	$Apache::lonhomework::results{"resource.$Apache::inputtags::part.$Apache::inputtags::response['-1'].submission"}=$response;
-	&Apache::lonxml::debug("submitted a $response<br>\n");
-	&Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
-	my $expression="&caparesponse_check('".$response."','".
-	  $$parstack[$#$parstack].
-	    ';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
-	      ';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
-		"');";
-	$result = &Apache::run::run($expression,$safeeval);
-	my ($ad) = split /:/ , $result;
-	$Apache::lonhomework::results{"resource.$Apache::inputtags::part.$Apache::inputtags::response['-1'].awarddetail"}=$ad;
-	&Apache::lonxml::debug("$expression");
-	&Apache::lonxml::debug("\n<br>result:$Apache::caparesponse::result:$result:$Apache::lonxml::curdepth<br>\n");
+	my $id = $Apache::inputtags::response['-1'];
+	my $previous= &Apache::response::check_for_previous($response,$id,$response);
+	if ( $previous ) { 
+	  $result = 'PREVIOUSLY_USED';
+	} else {
+	  $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$response;
+	  &Apache::lonxml::debug("submitted a $response<br>\n");
+	  &Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
+	  my $expression="&caparesponse_check('".$response."','".
+	    $$parstack[$#$parstack].
+	      ';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
+		';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
+		  "');";
+	  $result = &Apache::run::run($expression,$safeeval);
+	  my ($ad) = split /:/ , $result;
+	  $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$ad;
+	  &Apache::lonxml::debug("$expression");
+	  &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
+	}
       }
     }
-  } else {
+  } elsif ($target eq 'web') {
     #$result .= "The correct answer is ".&Apache::run::run("{$$parstack['-1'];".'return $answer}',$safeeval)."\n";
   }
   #Apache::lonxml::debug("\n<br>\nreal end caparesponse<br>\n");
   &Apache::response::end_response;
-  return $result;
+  return '';
 }
 
 sub start_numericalresponse {
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+  my $id = &Apache::response::start_response($parstack,$safeeval);
+  my $result;
+  if ($target eq 'edit') {
+    $result.=&Apache::edit::tag_start($target,$token,&Apache::lonxml::description($token));
+    $result.=&Apache::edit::text_arg('Answer:','answer',$token);
+    if ($token->[1] eq 'numericalresponse') {
+      $result.=&Apache::edit::text_arg('Unit:','unit',$token)
+    } else {
+      $result.=&Apache::edit::select_arg('Type:','type',
+					 ['cs','ci','mc'],$token)
+    }
+    $result.='</td></tr><tr><td colspan="3">';
+  } elsif ($target eq 'modified') {
+    my $constructtag;
+    if ($token->[1] eq 'numericalresponse') {
+      $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
+						'answer','unit');
+    } else {
+      $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
+						'answer','type');
+    }
+    if ($constructtag) {
+      $result = &Apache::edit::rebuild_tag($token);
+      $result.=&Apache::edit::handle_insert();
+    }
+  }
+  return $result;
 }
 
 sub end_numericalresponse {
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+  my $result = '';
+  if ( $target eq 'grade' ) {
+    if ( defined $ENV{'form.submitted'}) {
+      $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
+      my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
+      if ( $response =~ /[^\s]/) {
+	my $id = $Apache::inputtags::response['-1'];
+	my $previous= &Apache::response::check_for_previous($response,$id,$response);
+	if ( $previous ) { 
+	  $result = 'PREVIOUSLY_USED';
+	} else {
+	  $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$response;
+	  &Apache::lonxml::debug("submitted a $response<br>\n");
+	  &Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
+	  $response =~ s/\\/\\\\/g;
+	  $response =~ s/\'/\\\'/g;
+	  &Apache::lonxml::debug("current $response");
+	  my $expression="&caparesponse_check_list('".$response."','".
+	    $$parstack[$#$parstack].
+	      ';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
+	      ';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
+		"');";
+	  $result = &Apache::run::run($expression,$safeeval);
+	  my ($awards) = split /:/ , $result;
+	  my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
+	  $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$ad;
+	  &Apache::lonxml::debug("$expression");
+	  &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
+	  $result='';
+	}
+      }
+    }
+  } elsif ($target eq 'web') {
+    my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
+    my $status = $Apache::inputtags::status['-1'];
+    if ($award =~ /^correct/ || $status eq "SHOW_ANSWER" ) {
+      my $answervar=&Apache::run::run("{$$parstack['-1'];".'return $answer}',$safeeval);
+      my (@answers)=&Apache::run::run("$answervar",$safeeval);
+      my $unit=&Apache::run::run("{$$parstack['-1'];".'return $unit}',$safeeval);
+      
+      $result="<br></br>The computer got ";
+      my $answer;
+      foreach $answer (@answers) { $result.="$answer,"; }
+      chop $result;
+      $result.=" $unit.<br></br>";
+    }
+  } elsif ($target eq 'edit') {
+    $result.='</td></tr>'.&Apache::edit::end_table;
+  }
+  &Apache::response::end_response;
+  return $result;
+}
+
+sub start_stringresponse {
+  return start_numericalresponse(@_);
+}
+
+sub end_stringresponse {
+  return end_numericalresponse(@_);
 }
 
 1;