version 1.6, 2000/09/14 15:41:32
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version 1.10, 2000/10/12 20:36:05
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Line 6 use strict;
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Line 6 use strict;
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use Apache::lonnet; |
use Apache::lonnet; |
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sub BEGIN { |
sub BEGIN { |
&Apache::lonxml::register('Apache::structuretags',('block','while','randomlist')); |
&Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','outtext','web','tex')); |
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} |
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sub start_outtext { |
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} |
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sub end_outtext { |
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} |
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sub start_web { |
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my ($target,$token,$parstack,$parser,$safeeval)=@_; |
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my $bodytext=&Apache::lonxml::get_all_text("/web",$$parser[$#$parser]); |
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return $bodytext; |
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} |
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sub end_web { |
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} |
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sub start_tex { |
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my ($target,$token,$parstack,$parser,$safeeval)=@_; |
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my $bodytext=&Apache::lonxml::get_all_text("/tex",$$parser[$#$parser]); |
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return ''; |
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} |
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sub end_tex { |
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} |
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sub start_problem { |
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my ($target,$token,$parstack,$parser,$safeeval)=@_; |
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my $args =''; |
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if ( $#$parstack > -1 ) { |
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$args=$$parstack[$#$parstack]; |
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} |
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my $name = &Apache::run::run("{$args;".'return $name}',$safeeval); |
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return "<title>$name</title>\n<body bgcolor=#FFFFFF>\n" |
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} |
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sub end_problem { |
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return "</body>\n"; |
} |
} |
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sub start_block { |
sub start_block { |
Line 19 sub start_block {
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Line 57 sub start_block {
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my $result = &Apache::run::run($code,$safeeval); |
my $result = &Apache::run::run($code,$safeeval); |
if ( ! $result ) { |
if ( ! $result ) { |
# my $skip=$$parser[$#$parser]->get_text("/block"); |
# my $skip=$$parser[$#$parser]->get_text("/block"); |
my $skip=&Apache::lonxml::get_all_text("block",$$parser[$#$parser]); |
my $skip=&Apache::lonxml::get_all_text("/block",$$parser[$#$parser]); |
# print "skipped $skip"; |
# print "skipped $skip"; |
} |
} |
return ""; |
return ""; |
Line 40 sub start_while {
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Line 78 sub start_while {
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my $bodytext=$$parser[$#$parser]->get_text("/while"); |
my $bodytext=$$parser[$#$parser]->get_text("/while"); |
push( @Apache::structuretags::whilebody, $bodytext); |
push( @Apache::structuretags::whilebody, $bodytext); |
if ( $result ) { |
if ( $result ) { |
my $tempparser=HTML::TokeParser->new(\$bodytext); |
&Apache::lonxml::newparser($parser,\$bodytext); |
push (@$parser,$tempparser); |
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} |
} |
return ""; |
return ""; |
} |
} |
Line 52 sub end_while {
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Line 89 sub end_while {
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my $bodytext = pop @Apache::structuretags::whilebody; |
my $bodytext = pop @Apache::structuretags::whilebody; |
my $result = &Apache::run::run($code,$safeeval); |
my $result = &Apache::run::run($code,$safeeval); |
if ( $result ) { |
if ( $result ) { |
my $tempparser=HTML::TokeParser->new(\$bodytext); |
&Apache::lonxml::newparser($parser,\$bodytext); |
push (@$parser,$tempparser); |
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} |
} |
return ""; |
return ""; |
} |
} |
Line 66 sub end_while {
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Line 102 sub end_while {
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# </randomlist> |
# </randomlist> |
sub start_randomlist { |
sub start_randomlist { |
my ($target,$token,$parstack,$parser,$safeeval)=@_; |
my ($target,$token,$parstack,$parser,$safeeval)=@_; |
my $body= &Apache::lonxml::get_all_text("randomlist",$$parser[$#$parser]); |
my $body= &Apache::lonxml::get_all_text("/randomlist",$$parser[$#$parser]); |
my $b_parser= HTML::TokeParser->new(\$body); |
my $b_parser= HTML::TokeParser->new(\$body); |
my $b_tok; |
my $b_tok; |
my @randomlist; |
my @randomlist; |
my $list_item; |
my $list_item; |
my $param; |
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while($b_tok = $b_parser->get_token() ) { |
while($b_tok = $b_parser->get_token() ) { |
if($b_tok->[0] eq 'S') { # start tag |
if($b_tok->[0] eq 'S') { # start tag |
# get content of the tag until matching end tag |
# get content of the tag until matching end tag |
# get all text upto the matching tag |
# get all text upto the matching tag |
# and push the content into @randomlist |
# and push the content into @randomlist |
$list_item = &Apache::lonxml::get_all_text($b_tok->[1],$b_parser); |
$list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],$b_parser); |
$param=''; |
$list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>"; |
map {$param .= "$_=\"$b_tok->[2]->{$_}\" "} @{$b_tok->[3]}; |
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$param=~ s/^\s*(\S+)\s*$/$1/; |
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$param= " $param" if $param ne ""; |
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$list_item = "<$b_tok->[1]"."$param>"."$list_item"."</$b_tok->[1]>"; |
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print "<B>START-TAG $b_tok->[1], $list_item</B><BR>"; |
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push(@randomlist,$list_item); |
push(@randomlist,$list_item); |
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# print "<BR><B>START-TAG $b_tok->[1], $b_tok->[4], $list_item</B>"; |
} |
} |
if($b_tok->[0] eq 'T') { # text |
if($b_tok->[0] eq 'T') { # text |
# what to do with text in between tags? |
# what to do with text in between tags? |
Line 95 sub start_randomlist {
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Line 126 sub start_randomlist {
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# print "<B>END-TAG $b_tok->[1]</B><BR>"; |
# print "<B>END-TAG $b_tok->[1]</B><BR>"; |
# } |
# } |
} |
} |
# randomly select one item from the array @randomlist |
my @idx_arr = (0 .. $#randomlist); |
# and created a new parser for it and push it onto the |
&Apache::structuretags::shuffle(\@idx_arr); |
# parser stack |
my $bodytext = ''; |
my $bodytext = $randomlist[int(rand($#randomlist - 1)) + 1]; |
for(0 .. $#randomlist) { |
my $tempparser=HTML::TokeParser->new(\$bodytext); |
$bodytext .= "$randomlist[ $idx_arr[$_] ]"; |
print "SELECT-BODY<B>$bodytext</B><BR>"; |
} |
push (@$parser,$tempparser); |
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&Apache::lonxml::newparser($parser,\$bodytext); |
return ""; |
return ""; |
} |
} |
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sub shuffle { |
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my $a=shift; |
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my $i; |
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for($i=@$a;--$i;) { |
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my $j=int rand($i+1); |
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next if $i == $j; |
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@$a[$i,$j] = @$a[$j,$i]; |
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} |
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} |
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sub end_randomlist { |
sub end_randomlist { |
} |
} |
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