+sub getopt () {
+ eval q{use Getopt::Long};
+ error($@) if $@;
+ Getopt::Long::Configure('pass_through');
+ GetOptions("tagbase=s" => \$config{tagbase});
+}
+
+sub getsetup () {
+ return
+ plugin => {
+ safe => 1,
+ rebuild => undef,
+ },
+ tagbase => {
+ type => "string",
+ example => "tag",
+ description => "parent page tags are located under",
+ safe => 1,
+ rebuild => 1,
+ },
+ tag_autocreate => {
+ type => "boolean",
+ example => 0,
+ description => "Autocreate new tag pages",
+ safe => 1,
+ rebuild => 1,
+ },
+}
+
+sub tagpage ($) {
+ my $tag=shift;
+
+ if ($tag !~ m{^\.?/} &&
+ defined $config{tagbase}) {
+ $tag="/".$config{tagbase}."/".$tag;
+ $tag=~y#/#/#s; # squash dups
+ }
+
+ return $tag;
+}
+
+sub taglink ($$$;@) {
+ my $page=shift;
+ my $destpage=shift;
+ my $tag=shift;
+ my %opts=@_;
+
+ return htmllink($page, $destpage, tagpage($tag), %opts);
+}
+
+sub gentag ($) {
+ my $tag=shift;
+ if (defined $config{tag_autocreate} && $config{tag_autocreate}) {
+ my $tagfile = newpagefile(tagpage($tag), $config{default_pageext});
+ $tagfile=~s/^\///;
+
+ return if (! add_autofile($tagfile));
+
+ debug(sprintf(gettext("creating tag page %s"), $tag));
+
+ my $template=template("autotag.tmpl");
+ $template->param(tag => $tag);
+ writefile($tagfile, $config{srcdir}, $template->output);
+ }
+}
+
+sub preprocess_tag (@) {