--- loncom/homework/structuretags.pm 2000/11/28 19:10:32 1.13
+++ loncom/homework/structuretags.pm 2001/01/03 00:14:47 1.26
@@ -6,13 +6,16 @@ use strict;
use Apache::lonnet;
sub BEGIN {
- &Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','web','tex','part'));
+ &Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','web','tex','part','preduedate','postanswerdate','solved','notsolved'));
}
sub start_web {
my ($target,$token,$parstack,$parser,$safeeval)=@_;
my $bodytext=&Apache::lonxml::get_all_text("/web",$$parser[$#$parser]);
- return $bodytext;
+ if ($target eq 'web') {
+ return $bodytext;
+ }
+ return '';
}
sub end_web {
@@ -21,6 +24,9 @@ sub end_web {
sub start_tex {
my ($target,$token,$parstack,$parser,$safeeval)=@_;
my $bodytext=&Apache::lonxml::get_all_text("/tex",$$parser[$#$parser]);
+ if ($target eq 'tex') {
+ return $bodytext
+ }
return '';
}
@@ -29,19 +35,69 @@ sub end_tex {
sub start_problem {
my ($target,$token,$parstack,$parser,$safeeval)=@_;
- my $args ='';
- if ( $#$parstack > -1 ) {
- $args=$$parstack[$#$parstack];
+
+#intialize globals
+ $Apache::inputtags::part='0';
+ @Apache::inputtags::responselist = ();
+
+#adeed vars to the scripting enviroment
+ my $expression='$external::part='.$Apache::inputtags::part.';';
+ &Apache::run::run($expression,$safeeval);
+ my $status;
+ my $datemsg;
+ if ($target ne 'meta') {
+ ($status,$datemsg) = &Apache::lonhomework::check_date('0');
+ push (@Apache::inputtags::status,$status);
+ my $expression='$external::datestatus="'.$status.'";';
+ $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
+ &Apache::run::run($expression,$safeeval);
+ if ( $status eq 'CLOSED' ) {
+ my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]);
+ if ( $target eq "web" ) {
+ return "
Problem is not open to be viewed. The problem $datemsg
";
+ }
+ }
+ }
+ if ($target eq 'web') {
+ my $args ='';
+ if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
+ my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);
+ if ($status eq 'CAN_ANSWER') {
+ # create a page header and exit
+ return "
$name\n\n\n";
+ my ($target,$token,$parstack,$parser,$safeeval)=@_;
+ my $result='';
+ my $status=$Apache::inputtags::status['-1'];
+ unless ($target eq 'meta') {
+ if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
+ # if part is zero, no s existed, so we need to the grading
+ &Apache::inputtags::grade;
+ } elsif ($Apache::inputtags::part eq '0') {
+ # if part is zero, no s existed, so we need show the current
+ # grading status
+ $result.= &Apache::inputtags::gradestatus($Apache::inputtags::part);
+ }
+ if ($target eq 'web') {
+ if ($status eq 'CAN_ANSWER') {
+ $result.="\n";
+ } elsif ($status eq 'SHOW_ANSWER') {
+ $result.="\n";
+ }
+ }
+ } else {
+ if ($Apache::inputtags::part eq '0') {
+ $result=&Apache::response::mandatory_part_meta;
+ }
+ }
+ return $result;
}
sub start_block {
@@ -52,10 +108,10 @@ sub start_block {
$code .=';return $condition;';
# print "
$code
";
my $result = &Apache::run::run($code,$safeeval);
+ &Apache::lonxml::debug("block :$code: returned :$result:");
if ( ! $result ) {
-# my $skip=$$parser[$#$parser]->get_text("/block");
my $skip=&Apache::lonxml::get_all_text("/block",$$parser[$#$parser]);
-# print "skipped $skip";
+ &Apache::lonxml::debug("skipping ahead :$skip: $$parser[$#$parser]");
}
return "";
}
@@ -152,13 +208,93 @@ sub start_part {
my $args ='';
if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
my $id = &Apache::run::run("{$args;".'return $id}',$safeeval);
- push (@Apache::inputtags::part,$id);
+ $Apache::inputtags::part=$id;
+ @Apache::inputtags::responselist = ();
+ if ($target eq 'meta') {
+ return &Apache::response::mandatory_part_meta;
+ } else {
+ my ($status,$datemsg) = &Apache::lonhomework::check_date("OPEN_DATE",$id);
+ push (@Apache::inputtags::status,$status);
+ my $expression='$external::datestatus="'.$status.'";';
+ $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
+ &Apache::run::run($expression,$safeeval);
+ if ( $status eq 'CLOSED' ) {
+ my $bodytext=&Apache::lonxml::get_all_text("/part",$$parser[$#$parser]);
+ if ( $target eq "web" ) {
+ return "
Part is not open to be viewed. It $datemsg
";
+ }
+ }
+ }
+ return '';
}
sub end_part {
my ($target,$token,$parstack,$parser,$safeeval)=@_;
- pop @Apache::inputtags::part;
+ &Apache::lonxml::debug("in end_part $target ");
+ pop @Apache::inputtags::status;
+ if ( $target eq 'meta' ) { return ''; }
+ if ( $target eq 'grade' ) { return &Apache::inputtags::grade; }
+ return &Apache::inputtags::gradestatus($Apache::inputtags::part);
+}
+
+sub start_preduedate {
+ my ($target,$token,$parstack,$parser,$safeeval)=@_;
+ if ($target ne 'meta') {
+ if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER') {
+ &Apache::lonxml::get_all_text("/preduedate",$$parser[$#$parser]);
+ }
+ }
+ return '';
+}
+
+sub end_preduedate {
+ return '';
+}
+
+sub start_postanswerdate {
+ my ($target,$token,$parstack,$parser,$safeeval)=@_;
+ if ($target ne 'meta') {
+ if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
+ &Apache::lonxml::get_all_text("/postanswerdate",$$parser[$#$parser]);
+ }
+ }
+ return '';
}
+sub end_postanswerdate {
+ return '';
+}
+
+sub start_notsolved {
+ my ($target,$token,$parstack,$parser,$safeeval)=@_;
+ if ($target ne 'meta') {
+ my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
+ &Apache::lonxml::debug("not solved has :$gradestatus:");
+ if ($gradestatus =~ /^correct/) {
+ &Apache::lonxml::debug("skipping");
+ &Apache::lonxml::get_all_text("/notsolved",$$parser[$#$parser]);
+ }
+ }
+ return '';
+}
+
+sub end_notsolved {
+ return '';
+}
+
+sub start_solved {
+ my ($target,$token,$parstack,$parser,$safeeval)=@_;
+ if ($target ne 'meta') {
+ my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
+ if ($gradestatus !~ /^correct/) {
+ &Apache::lonxml::get_all_text("/solved",$$parser[$#$parser]);
+ }
+ }
+ return '';
+}
+
+sub end_solved {
+ return '';
+}
1;
__END__