--- loncom/imspackages/imsprocessor.pm	2005/05/28 01:32:32	1.21
+++ loncom/imspackages/imsprocessor.pm	2005/10/12 22:54:20	1.28
@@ -1827,8 +1827,125 @@ sub parse_bb5_assessment {
 }
 
 sub parse_bb6_assessment {
-     my ($res,$docroot,$container,$settings,$allanswers,$allchoices,$allids) = @_;
-     return;
+    my ($res,$docroot,$container,$settings,$allanswers,$allchoices,$allids) = @_;
+    my $xmlfile = $docroot.'/'.$res.".dat";
+    my @state = ();
+    my $id; # the current question ID
+    my $list; # the current list ID for multiple choice questions
+    my $currtexttype;
+    my $curr_outer_block;
+    my $curr_inner_block;
+    my $curr_shuffle;
+    my $curr_class;
+    my $curr_feedback_type;
+    my $p = HTML::Parser->new
+    (
+     xml_mode => 1,
+     start_h =>
+     [sub {
+        my ($tagname, $attr) = @_;
+        push @state, $tagname;
+        if ("@state" eq "questestinterop assessment") {
+            $$settings{title} = $attr->{title};
+        }
+        if ("@state" eq "questestinterop section item presentation flow flow") {
+            $curr_outer_block = $attr->{class};
+        }
+        if ("@state" eq "questestinterop section item presentation flow flow flow") {
+            $curr_inner_block = $attr->{class};
+        }
+        if ("@state" eq "questestinterop section item presentation flow flow flow material mat_extension mat_formatted_text") {
+            $$settings{$id}{texttype} = $attr->{texttype};
+            $currtexttype = $attr->{texttype};
+            $curr_inner_block = $attr->{class};
+        }
+        if ("@state" eq "questestinterop section item presentation flow flow flow material matapplication") {
+            $$settings{$id}{image} = $attr->{uri};
+            $$settings{$id}{style} = $attr->{embedded};
+            $$settings{$id}{label} = $attr->{label};
+        }
+        if ("@state" eq "questestinterop section item presentation flow flow flow material mattext") {
+            $$settings{$id}{link} = $attr->{uri};
+        }
+        if ("@state" eq "questestinterop section item presentation flow response_lid render_choice") {
+            $curr_shuffle = $attr->{shuffle};
+        }
+        if ("@state" eq "questestinterop section item presentation flow flow flow response_lid render_choice flow response_label") {
+            if ($$settings{$id}{class} eq 'Multiple Choice') {
+                $curr_class = 'Multiple Choice';  
+                $list = $attr->{ident};
+                push(@{$$settings{$id}{lists}},$list);
+                $$settings{$id}{$list}{randomize} = $curr_shuffle;
+                %{$$settings{$id}{$list}} = ();
+                @{$$allanswers{$id}{$list}} = ();
+                @{$$settings{$id}{$list}{correctanswer}} = ();
+            }
+        }
+        if ("@state" eq "questestinterop section item itemfeedback") {
+            $curr_feedback_type = $attr->{ident};
+        }
+        if ("@state" eq "questestinterop section item itemfeedback flow_mat flow_mat material matapplication") {
+            $$settings{$id}{$curr_feedback_type.'feedback'}{filetype} = $attr->{'embedded'};
+            $$settings{$id}{$curr_feedback_type.'feedback'}{label} = $attr->{label};
+            $$settings{$id}{$curr_feedback_type.'feedback'}{uri} = $attr->{uri}; 
+        }
+        if ("@state" eq "questestinterop section item itemfeedback flow_mat flow_mat material mattext") {
+            $$settings{$id}{$curr_feedback_type.'feedback'}{link} = $attr->{uri};
+        }
+     }, "tagname, attr"],
+     text_h =>
+     [sub {
+        my ($text) = @_;
+        $text =~ s/^\s+//g;
+        $text =~ s/\s+$//g;
+        if ("@state" eq "questestinterop assessment rubric flow_mat material mat_extension mat_formattedtext") {
+            $$settings{description} = $text;
+        } elsif ("@state" eq "questestinterop assessment presentation_material flow_mat material mat_extension mat_formattedtext") {
+            $$settings{instructions}{text} = $text;
+        }
+        if ("@state" eq "questestinterop assessment section item itemmetadata bbmd_asi_object_id") {
+            $id = $text;
+            push @{$allids}, $id;
+            %{$$settings{$id}} = ();
+            @{$$settings{$id}{lists}} = ();
+            %{$$settings{$id}{correctfeedback}} = ();
+            %{$$settings{$id}{incorrectfeedback}} = ();
+        }
+        if ("@state" eq "questestinterop assessment section item itemmetadata bbmd_questiontype") {
+            $$settings{$id}{class} = $text;
+        }
+        if ("@state" eq "questestinterop assessment section item presentation flow flow flow material mat_extension mat_formatted_text") {
+            $$settings{$id}{text} = $text;
+        }
+        if ("@state" eq "questestinterop section item presentation flow flow flow material mattext") {
+            $$settings{$id}{linktext} = $text;
+        }
+        if ("@state" eq "questestinterop section item presentation flow flow flow response_lid render_choice flow response_label flow_mat material mat_extension mat_formatted_text") {
+            $$settings{$id}{$list}{text} = $text;
+        }
+        if ("@state" eq "questestinterop section item resprocessing respcondition conditionvar varequal") {
+            if ($curr_class eq 'Multiple Choice') {
+                $$settings{$id}{$list}{correctanswer} = $text;
+            }
+        }
+        if ("@state" eq "questestinterop section item itemfeedback flow_mat flow_mat material mat_extension mat_formattedtext") {
+            $$settings{$id}{$curr_feedback_type.'feedback'}{text} = $text;
+        }
+        if ("@state" eq "questestinterop section item itemfeedback flow_mat flow_mat material mattext") {
+            $$settings{$id}{$curr_feedback_type.'feedback'}{linkname} = $text;
+        }
+     }, "dtext"],
+     end_h =>
+     [sub {
+        my ($tagname) = @_;
+        pop @state;
+     }, "tagname"],
+    );
+    $p->unbroken_text(1);
+    $p->marked_sections(1);
+    $p->parse_file($xmlfile);
+    $p->eof;
+    return;
 }
 
 sub parse_webct4_assessment {
@@ -2095,7 +2212,7 @@ sub parse_webct4_questionDB {
             $$settings{$id}{$numid}{toltype} = $attr->{type};
         }
         if ("@state" eq "questestinterop section item resprocessing itemproc_extension webct:x_webct_v01_autocalculate webct:x_webct_v01_unit") {
-            my $unitid = $attr->{ident};
+            $unitid = $attr->{ident};
             %{$$settings{$id}{$numid}{$unitid}} = ();
             push(@{$$settings{$id}{$numid}{units}},$unitid);
             $$settings{$id}{$numid}{$unitid}{value} = $attr->{value}; 
@@ -2864,13 +2981,10 @@ sub write_webct4_questions {
             $allfeedback .= $feedback;
         }
         if ($$settings{$id}{texttype} eq 'text/html') {
-            $$settings{$id}{text} = &HTML::Entities::decode($$settings{$id}{text});
+            $$settings{$id}{text} =~ s/(\&)(nbsp|gt|lt)(?!;)/$1$2;$3/gi;
             $$settings{$id}{text} = &Apache::loncleanup::htmlclean($$settings{$id}{text});
-            $$settings{$id}{text} =~ s#(<img src=["']?)([^>]+)(/?>)#$1../../resfiles/$2 />#gi;
+            $$settings{$id}{text} =~ s#(<img src=["']?)([^>]+?)(/?>)#$1../../resfiles/$2 />#gi;
             $$settings{$id}{text} =~ s#<([bh])r>#<$1r />#g;
-#            $$settings{$id}{text} =~ s#<p>#</p><p>#g;
-#            $$settings{$id}{text} =~ s#</p></p>#</p>#;
-#            $$settings{$id}{text} =~ s#<p></p>##g;
             $$settings{$id}{text} =~ s#<p>#<br /><br />#g;
             $$settings{$id}{text} =~ s#</p>##g;
         }
@@ -2893,8 +3007,10 @@ sub write_webct4_questions {
         $resourcedata{$symb.'randomize'} = 'yes';
         $resourcedata{$symb.'maxfoils'} = 10;
         if ($context eq 'CSTR') {
-            $output = qq|<problem>
+            unless ($$settings{$id}{class} eq 'numerical') {
+                $output = qq|<problem>
 |;
+            }
         }
         $$total{prob} ++;
         if (exists($$settings{$id}{uri})) {
@@ -3058,7 +3174,7 @@ sub write_webct4_questions {
                     } else {
                         $output .= qq|
 <optionresponse max="10" randomize="yes">
-    <foilgroup options=$allmatchlist>
+    <foilgroup options="$allmatchlist">
 |;
                     }
                 } else {
@@ -3249,11 +3365,34 @@ sub write_webct4_questions {
                     }
                 }
             } elsif ($$settings{$id}{class} eq 'numerical') {
+                my %mathfns = (
+                    'abs' => 'abs',
+                    'acos' => 'acos',
+                    'asin' => 'asin',
+                    'atan' => 'atan',
+                    'ceil' => 'ceil',
+                    'cos' => 'cos',
+                    'exp' => 'exp',
+                    'fact' => 'factorial',
+                    'floor' => 'floor',
+                    'int' => 'int',
+                    'ln' => 'log',
+                    'log' => 'log',
+                    'max' => 'max',
+                    'min' => 'min',
+                    'round' => 'roundto',
+                    'sin' => 'sin',
+                    'sqrt' => 'sqrt',
+                    'tan' => 'tan',
+                );
+
                 my $scriptblock = qq|
 <script type="loncapa/perl">
 |;
                 foreach my $numid (@{$$settings{$id}{numids}}) {
                     my $formula = $$settings{$id}{$numid}{formula};
+                    my $pattern = join('|',(sort (keys (%mathfns))));
+                    $formula =~ s/($pattern)/\&$mathfns{$1}/g;
                     foreach my $var (keys %{$$settings{$id}{$numid}{vars}}) {
                         my $decnum = $$settings{$id}{$numid}{vars}{$var}{dec};
                         my $increment = '0.';
@@ -3267,9 +3406,7 @@ sub write_webct4_questions {
                             }
                             $increment .= '1';
                         } 
-                        $formula =~ s/{($var)}/\$$1/g;
-                        $formula =~ s/ln\(?([^\)])\)?/ &log($1) /g;
-                        $formula =~ s/sqrt/\&sqrt/g;
+                        $formula =~ s/{($var)}/(\$$1)/g;
                         $scriptblock .= qq|
 \$$var=&random($$settings{$id}{$numid}{vars}{$var}{min},$$settings{$id}{$numid}{vars}{$var}{max},$increment);
 |;
@@ -3279,7 +3416,7 @@ sub write_webct4_questions {
 </script>
 |;
                     if ($context eq 'CSTR') {
-                        $output = $scriptblock.$output;
+                        $output = "<problem>\n".$scriptblock.$output;
                         my $ansformat = '';
                         my $sigfig = '0,15';
                         if ($$settings{$id}{$numid}{format} eq 'sig') {
@@ -3300,7 +3437,7 @@ sub write_webct4_questions {
                         }
                         my $unitentry = '';
                         if ($unit ne '') {
-                            $unitentry =  'unit='.$unit;
+                            $unitentry =  'unit="'.$unit.'"';
                         }
                         $output .= qq|
 <numericalresponse $unitentry $ansformat  answer="\$answervar">