--- loncom/homework/structuretags.pm 2000/09/14 15:41:32 1.6
+++ loncom/homework/structuretags.pm 2000/09/18 15:43:38 1.7
@@ -71,7 +71,6 @@ sub start_randomlist {
my $b_tok;
my @randomlist;
my $list_item;
- my $param;
while($b_tok = $b_parser->get_token() ) {
if($b_tok->[0] eq 'S') { # start tag
@@ -79,13 +78,9 @@ sub start_randomlist {
# 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);
- $param='';
- map {$param .= "$_=\"$b_tok->[2]->{$_}\" "} @{$b_tok->[3]};
- $param=~ s/^\s*(\S+)\s*$/$1/;
- $param= " $param" if $param ne "";
- $list_item = "<$b_tok->[1]"."$param>"."$list_item"."$b_tok->[1]>";
- print "START-TAG $b_tok->[1], $list_item
";
+ $list_item = "$b_tok->[4]"."$list_item"."$b_tok->[1]>";
push(@randomlist,$list_item);
+ # print "
START-TAG $b_tok->[1], $b_tok->[4], $list_item";
}
if($b_tok->[0] eq 'T') { # text
# what to do with text in between tags?
@@ -95,16 +90,27 @@ sub start_randomlist {
# print "END-TAG $b_tok->[1]
";
# }
}
- # randomly select one item from the array @randomlist
- # and created a new parser for it and push it onto the
- # parser stack
- my $bodytext = $randomlist[int(rand($#randomlist - 1)) + 1];
+ my @idx_arr = (0 .. $#randomlist);
+ &Apache::structuretags::shuffle(\@idx_arr);
+ my $bodytext = '';
+ for(0 .. $#randomlist) {
+ $bodytext .= "$randomlist[ $idx_arr[$_] ]";
+ }
my $tempparser=HTML::TokeParser->new(\$bodytext);
- print "SELECT-BODY$bodytext
";
push (@$parser,$tempparser);
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 {
}