--- loncom/homework/structuretags.pm 2000/10/12 20:36:05 1.10 +++ loncom/homework/structuretags.pm 2000/12/15 20:31:30 1.22 @@ -6,19 +6,16 @@ use strict; use Apache::lonnet; sub BEGIN { - &Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','outtext','web','tex')); -} - -sub start_outtext { -} - -sub end_outtext { + &Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','web','tex','part')); } sub start_web { my ($target,$token,$parstack,$parser,$safeeval)=@_; my $bodytext=&Apache::lonxml::get_all_text("/web",$$parser[$#$parser]); - return $bodytext; + if ($target eq 'web') { + return $bodytext; + } + return ''; } sub end_web { @@ -27,6 +24,9 @@ sub end_web { sub start_tex { my ($target,$token,$parstack,$parser,$safeeval)=@_; my $bodytext=&Apache::lonxml::get_all_text("/tex",$$parser[$#$parser]); + if ($target eq 'tex') { + return $bodytext + } return ''; } @@ -35,16 +35,66 @@ sub end_tex { sub start_problem { my ($target,$token,$parstack,$parser,$safeeval)=@_; - my $args =''; - if ( $#$parstack > -1 ) { - $args=$$parstack[$#$parstack]; + +#intialize globals + $Apache::inputtags::part='0'; + @Apache::inputtags::responselist = (); + +#adeed vars to the scripting enviroment + my $expression='$external::part='.$Apache::inputtags::part.';'; + &Apache::run::run($expression,$safeeval); + my $status; + my $datemsg; + if ($target ne 'meta') { + ($status,$datemsg) = &Apache::lonhomework::check_date('0'); + push (@Apache::inputtags::status,$status); + if ( $status eq 'CLOSED' ) { + my $bodytext=&Apache::lonxml::get_all_text("/problem",$$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=$$parstack[$#$parstack]; } + my $name = &Apache::run::run("{$args;".'return $name}',$safeeval); + if ($status eq 'CAN_ANSWER') { + # create a page header and exit + return "$name\n\n
"; + } elsif ($status eq 'SHOW_ANSWER') { + return "$name\n\n"; + } } - my $name = &Apache::run::run("{$args;".'return $name}',$safeeval); - return "$name\n\n" + return ''; } sub end_problem { - return "\n"; + my ($target,$token,$parstack,$parser,$safeeval)=@_; + my $result=''; + my $status=@Apache::inputtags::status['-1']; + unless ($target eq 'meta') { + if ( $target eq 'grade' && $Apache::inputtags::part eq '0') { + # if part is zero, no s existed, so we need to the grading + &Apache::inputtags::grade; + } elsif ($Apache::inputtags::part eq '0') { + # if part is zero, no s existed, so we need show the current + # grading status + $result.= &Apache::inputtags::gradestatus($Apache::inputtags::part); + } + if ($target eq 'web') { + if ($status eq 'CAN_ANSWER') { + $result.="\n"; + } elsif ($status eq 'SHOW_ANSWER') { + $result.="\n"; + } + } + } else { + if ($Apache::inputtags::part eq '0') { + $result=&Apache::response::mandatory_part_meta; + } + } + return $result; } sub start_block { @@ -150,6 +200,34 @@ sub shuffle { sub end_randomlist { } +sub start_part { + my ($target,$token,$parstack,$parser,$safeeval)=@_; + my $args =''; + if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } + my $id = &Apache::run::run("{$args;".'return $id}',$safeeval); + $Apache::inputtags::part=$id; + @Apache::inputtags::responselist = (); + if ($target eq 'meta') { + return &Apache::response::mandatory_part_meta; + } else { + my ($date,$passed) = &Apache::lonhomework::check_date("OPEN_DATE",$id); + if ( !$passed ) { + my $bodytext=&Apache::lonxml::get_all_text("/part",$$parser[$#$parser]); + if ( $target eq "web" ) { + return "Part is not open to be viewed. It opens on $date"; + } + } + } + return ''; +} + +sub end_part { + my ($target,$token,$parstack,$parser,$safeeval)=@_; + &Apache::lonxml::debug("in end_part $target "); + if ( $target eq 'meta' ) { return ''; } + if ( $target eq 'grade' ) { return &Apaceh::inputtags::grade; } + return &Apache::inputtags::gradestatus($Apache::inputtags::part); +} 1; __END__