+sub htmllink_tag ($$$;@) {
+ my $page=shift;
+ my $destpage=shift;
+ my $tag=shift;
+ my %opts=@_;
+
+ return htmllink($page, $destpage, taglink($tag), %opts);
+}
+
+sub gentag ($) {
+ my $tag=shift;
+
+ if ($config{tag_autocreate} ||
+ ($config{tagbase} && ! defined $config{tag_autocreate})) {
+ my $tagpage=taglink($tag);
+ if ($tagpage=~/^\.\/(.*)/) {
+ $tagpage=$1;
+ }
+ else {
+ $tagpage=~s/^\///;
+ }
+ if (exists $IkiWiki::pagecase{lc $tagpage}) {
+ $tagpage=$IkiWiki::pagecase{lc $tagpage}
+ }
+
+ my $tagfile = newpagefile($tagpage, $config{default_pageext});
+
+ add_autofile($tagfile, "tag", sub {
+ my $message=sprintf(gettext("creating tag page %s"), $tagpage);
+ debug($message);
+
+ my $template=template("autotag.tmpl");
+ $template->param(tagname => tagname($tag));
+ $template->param(tag => $tag);
+
+ my $dir = $config{srcdir};
+ if (! $config{tag_autocreate_commit}) {
+ $dir = $IkiWiki::Plugin::transient::transientdir;
+ }
+
+ writefile($tagfile, $dir, $template->output);
+ if ($config{rcs} && $config{tag_autocreate_commit}) {
+ IkiWiki::disable_commit_hook();
+ IkiWiki::rcs_add($tagfile);
+ IkiWiki::rcs_commit_staged(message => $message);
+ IkiWiki::enable_commit_hook();
+ }
+ });
+ }
+}
+
+sub preprocess_tag (@) {