X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/d0b1b244281102a07f675880c401ca831ff113d4..97a69be23663edfef828faa6f690f03db203e06b:/IkiWiki/Plugin/map.pm

diff --git a/IkiWiki/Plugin/map.pm b/IkiWiki/Plugin/map.pm
index 93ff3194a..b08d78d76 100644
--- a/IkiWiki/Plugin/map.pm
+++ b/IkiWiki/Plugin/map.pm
@@ -45,7 +45,8 @@ sub preprocess (@) { #{{{
 	}
 	
 	# Common prefix should not be a page in the map.
-	while (length $common_prefix && exists $mapitems{$common_prefix}) {
+	while (defined $common_prefix && length $common_prefix &&
+	       exists $mapitems{$common_prefix}) {
 		$common_prefix=IkiWiki::dirname($common_prefix);
 	}
 
@@ -60,19 +61,23 @@ sub preprocess (@) { #{{{
 	my $parent="";
 	my $indent=0;
 	my $openli=0;
+	my $dummy=0;
 	my $map = "<div class='map'>\n<ul>\n";
 	foreach my $item (sort keys %mapitems) {
-		$item=~s/^\Q$common_prefix\E\/// if length $common_prefix;
+		$item=~s/^\Q$common_prefix\E\///
+			if defined $common_prefix && length $common_prefix;
 		my $depth = ($item =~ tr/\//\//) + 1;
 		my $baseitem=IkiWiki::dirname($item);
 		while (length $parent && length $baseitem && $baseitem !~ /^\Q$parent\E(\/|$)/) {
 			$parent=IkiWiki::dirname($parent);
+			last if !$dummy && length $parent && $baseitem =~ /^\Q$parent\E(\/|$)/;
 			$indent--;
 			$map .= "</li>\n";
 			if ($indent > 0) {
 				$map .= "</ul>\n";
 			}
 		}
+		$dummy=0;
 		while ($depth < $indent) {
 			$indent--;
 			$map .= "</li>\n";
@@ -89,6 +94,7 @@ sub preprocess (@) { #{{{
 				$map .= "<ul>\n";
 			}
 			if ($depth > $indent) {
+				$dummy=1;
 				$p.="/".shift(@bits);
 				$map .= "<li>"
 					.htmllink($params{page}, $params{destpage}, $p, class => "mapparent")