version 1.1, 2000/07/25 21:27:30
|
version 1.21, 2000/12/12 22:35:52
|
Line 1
|
Line 1
|
# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA # <script> definiton |
# <script> definiton |
|
|
|
|
|
package Apache::structuretags; |
package Apache::structuretags; |
|
|
Line 8 use strict;
|
Line 6 use strict;
|
use Apache::lonnet; |
use Apache::lonnet; |
|
|
sub BEGIN { |
sub BEGIN { |
&Apache::lonxml::register('Apache::structuretags',('block')); |
&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",$$parser[$#$parser]); |
|
if ($target eq 'web') { |
|
return $bodytext; |
|
} |
|
return ''; |
|
} |
|
|
|
sub end_web { |
|
} |
|
|
|
sub start_tex { |
|
my ($target,$token,$parstack,$parser,$safeeval)=@_; |
|
my $bodytext=&Apache::lonxml::get_all_text("/tex",$$parser[$#$parser]); |
|
if ($target eq 'tex') { |
|
return $bodytext |
|
} |
|
return ''; |
|
} |
|
|
|
sub end_tex { |
|
} |
|
|
|
sub start_problem { |
|
my ($target,$token,$parstack,$parser,$safeeval)=@_; |
|
|
|
#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,$safeeval); |
|
if ($target ne 'meta') { |
|
my ($date,$passed) = &Apache::lonhomework::check_date("OPEN_DATE",'0'); |
|
if ( !$passed ) { |
|
my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]); |
|
if ( $target eq "web" ) { |
|
return "Problem is not open to be viewed. It opens on $date"; |
|
} |
|
} |
|
} |
|
if ($target eq 'web') { |
|
# create a page header and exit |
|
my $args =''; |
|
if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } |
|
my $name = &Apache::run::run("{$args;".'return $name}',$safeeval); |
|
return "<title>$name</title>\n<body bgcolor=#FFFFFF>\n<form name=\"lonhomework\" method=\"POST\" action=\"".$ENV{'request.uri'}."\">"; |
|
} |
|
return ''; |
|
} |
|
|
|
sub end_problem { |
|
my ($target,$token,$parstack,$parser,$safeeval)=@_; |
|
my $result=''; |
|
unless ($target eq 'meta') { |
|
if ( $target eq 'grade' && $Apache::inputtags::part eq '0') { |
|
# if part is zero, no <part>s existed, so we need to the grading |
|
&Apache::inputtags::grade; |
|
} elsif ($Apache::inputtags::part eq '0') { |
|
# if part is zero, no <part>s existed, so we need show the current |
|
# grading status |
|
$result.= &Apache::inputtags::gradestatus($Apache::inputtags::part); |
|
} |
|
if ($target eq 'web') { $result.="</form></body>\n"; } |
|
} else { |
|
if ($Apache::inputtags::part eq '0') { |
|
$result=&Apache::response::mandatory_part_meta; |
|
} |
|
} |
|
return $result; |
} |
} |
|
|
sub start_block { |
sub start_block { |
Line 17 sub start_block {
|
Line 89 sub start_block {
|
my $code = @$parstack[$#$parstack]; |
my $code = @$parstack[$#$parstack]; |
$code =~ s/\"//g; |
$code =~ s/\"//g; |
$code .=';return $condition;'; |
$code .=';return $condition;'; |
|
# print "<br>$code<br>"; |
my $result = &Apache::run::run($code,$safeeval); |
my $result = &Apache::run::run($code,$safeeval); |
if ( ! $result ) { |
if ( ! $result ) { |
my $skip=$parser->get_text("/block"); |
# my $skip=$$parser[$#$parser]->get_text("/block"); |
|
my $skip=&Apache::lonxml::get_all_text("/block",$$parser[$#$parser]); |
|
# print "skipped $skip"; |
} |
} |
return ""; |
return ""; |
} |
} |
Line 27 sub start_block {
|
Line 102 sub start_block {
|
sub end_block { |
sub end_block { |
} |
} |
|
|
|
sub start_while { |
|
my ($target,$token,$parstack,$parser,$safeeval)=@_; |
|
|
|
my $code = @$parstack[$#$parstack]; |
|
$code =~ s/\"//g; |
|
$code .=';return $condition;'; |
|
|
|
push( @Apache::structuretags::whileconds, $code); |
|
my $result = &Apache::run::run($code,$safeeval); |
|
my $bodytext=$$parser[$#$parser]->get_text("/while"); |
|
push( @Apache::structuretags::whilebody, $bodytext); |
|
if ( $result ) { |
|
&Apache::lonxml::newparser($parser,\$bodytext); |
|
} |
|
return ""; |
|
} |
|
|
|
sub end_while { |
|
my ($target,$token,$parstack,$parser,$safeeval)=@_; |
|
my $code = pop @Apache::structuretags::whileconds; |
|
my $bodytext = pop @Apache::structuretags::whilebody; |
|
my $result = &Apache::run::run($code,$safeeval); |
|
if ( $result ) { |
|
&Apache::lonxml::newparser($parser,\$bodytext); |
|
} |
|
return ""; |
|
} |
|
|
|
# <randomlist> |
|
# <tag1>..</tag1> |
|
# <tag2>..</tag2> |
|
# <tag3>..</tag3> |
|
# ... |
|
# </randomlist> |
|
sub start_randomlist { |
|
my ($target,$token,$parstack,$parser,$safeeval)=@_; |
|
my $body= &Apache::lonxml::get_all_text("/randomlist",$$parser[$#$parser]); |
|
my $b_parser= HTML::TokeParser->new(\$body); |
|
my $b_tok; |
|
my @randomlist; |
|
my $list_item; |
|
|
|
while($b_tok = $b_parser->get_token() ) { |
|
if($b_tok->[0] eq 'S') { # start tag |
|
# get content of the tag until matching end tag |
|
# get all text upto the matching tag |
|
# and push the content into @randomlist |
|
$list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],$b_parser); |
|
$list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>"; |
|
push(@randomlist,$list_item); |
|
# print "<BR><B>START-TAG $b_tok->[1], $b_tok->[4], $list_item</B>"; |
|
} |
|
if($b_tok->[0] eq 'T') { # text |
|
# what to do with text in between tags? |
|
# print "<B>TEXT $b_tok->[1]</B><BR>"; |
|
} |
|
# if($b_tok->[0] eq 'E') { # end tag, should not happen |
|
# print "<B>END-TAG $b_tok->[1]</B><BR>"; |
|
# } |
|
} |
|
my @idx_arr = (0 .. $#randomlist); |
|
&Apache::structuretags::shuffle(\@idx_arr); |
|
my $bodytext = ''; |
|
for(0 .. $#randomlist) { |
|
$bodytext .= "$randomlist[ $idx_arr[$_] ]"; |
|
} |
|
|
|
&Apache::lonxml::newparser($parser,\$bodytext); |
|
return ""; |
|
} |
|
|
|
sub shuffle { |
|
my $a=shift; |
|
my $i; |
|
for($i=@$a;--$i;) { |
|
my $j=int rand($i+1); |
|
next if $i == $j; |
|
@$a[$i,$j] = @$a[$j,$i]; |
|
} |
|
} |
|
|
|
sub end_randomlist { |
|
} |
|
|
|
sub start_part { |
|
my ($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; |
1; |
__END__ |
__END__ |