--- loncom/homework/response.pm	2005/11/03 23:00:53	1.127
+++ loncom/homework/response.pm	2005/11/10 22:19:27	1.128
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # various response type definitons response definition
 #
-# $Id: response.pm,v 1.127 2005/11/03 23:00:53 albertel Exp $
+# $Id: response.pm,v 1.128 2005/11/10 22:19:27 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -32,7 +32,7 @@ use Apache::lonlocal;
 use Apache::lonnet;
 
 BEGIN {
-    &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse'));
+    &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','algorithmicresponse'));
 }
 
 sub start_response {
@@ -362,6 +362,106 @@ sub end_dataresponse {
     return $result;
 }
 
+sub start_algorithmicresponse {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+    my $id = &Apache::response::start_response($parstack,$safeeval);
+    push(@Apache::lonxml::namespace,'algorithmicresponse');
+    my $result;
+    undef($Apache::response::algorithmic_answer);
+    &Apache::lonxml::register('Apache::response',('answer'));
+    if ($target eq 'web') {
+  	if (  &Apache::response::show_answer() ) {
+	    my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
+						   $safeeval);
+	    $Apache::inputtags::answertxt{$id}=$answer;
+	}
+    } elsif ($target eq 'edit') {
+	$result.=&Apache::edit::tag_start($target,$token);
+	$result.=&Apache::edit::text_arg('String to display for answer:',
+					 'answerdisplay',$token);
+	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
+    } elsif ($target eq 'modified') {
+	my $constructtag;
+	$constructtag=&Apache::edit::get_new_args($token,$parstack,
+						  $safeeval,'answerdisplay');
+	if ($constructtag) {
+	    $result = &Apache::edit::rebuild_tag($token);
+	    $result.=&Apache::edit::handle_insert();
+	}
+    } elsif ($target eq 'answer' || $target eq 'grade') {
+	&Apache::response::reset_params();
+    } elsif ($target eq 'meta') {
+	$result .= &Apache::response::meta_package_write('algorithmicresponse');
+    }
+    return $result;
+}
+
+sub end_algorithmicresponse {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+    my $result;
+    my $part=$Apache::inputtags::part;
+    my $id=$Apache::inputtags::response[-1];
+    if ( $target eq 'grade' && &Apache::response::submitted() ) {
+	my $response = &Apache::response::getresponse();
+	if ( $response =~ /[^\s]/ && 
+	     $Apache::response::algorithmic_answer_type eq 'loncapa/perl') {
+	    if (!$Apache::lonxml::default_homework_loaded) {
+		&Apache::lonxml::default_homework_load($safeeval);
+	    }
+	    my %previous = &Apache::response::check_for_previous($response,
+								 $part,$id);
+	    $Apache::lonhomework::results{"resource.$part.$id.submission"}=
+		$response;
+	    my $error;
+	    ${$safeeval->varglob('LONCAPA::algorithmicresponse_submission')}=
+		$response;
+	    
+	    my $award = &Apache::run::run('{ my $submission=$LONCAPA::algorithmicresponse_submission;'.$Apache::response::algorithmic_answer.'}',$safeeval);
+	    if (!&Apache::inputtags::valid_award($award)) {
+		$error = $award;
+		$award = 'ERROR';
+	    }
+	    &Apache::response::handle_previous(\%previous,$award);
+	    $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
+		$award;
+	    if ($error) {
+		$Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
+		    $error;
+	    }
+	}
+    }
+    pop(@Apache::lonxml::namespace);
+    &Apache::lonxml::deregister('Apache::response',('answer'));
+    &Apache::response::end_response();
+    return $result;
+}
+
+sub start_answer {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+    my $result;
+    $Apache::response::algorithmic_answer=
+	&Apache::lonxml::get_all_text_unbalanced("/answer",$parser);
+    $Apache::response::algorithmic_answer_type=
+	lc(&Apache::lonxml::get_param('type',$parstack,$safeeval));
+    $Apache::response::algorithmic_answer_type =~ s/\s+//g;
+    if ($target eq "edit" ) {
+	$result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
+	$result.=&Apache::edit::editfield($token->[1],
+					  $Apache::response::algorithmic_answer,
+					  '',80,4);
+    } elsif ( $target eq "modified" ) {
+	$result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
+    }
+    return $result;
+}
+
+sub end_answer {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+    if ($target eq 'edit' ) {
+	return &Apache::edit::end_table();
+    }
+}
+
 sub decide_package {
     my ($tagstack)=@_;
     my $package;