From 4c2f46e3fa34238bbdd093f0b3d211103a3b94a3 Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@ http://smcv.pseudorandom.co.uk/>
Date: Sun, 3 Aug 2008 16:16:24 +0100
Subject: [PATCH] Suppress warning about uninitialized value if directives look
 like [[!foo]] (cherry picked from commit
 cf58eefaa56eb17c227d97d129bf95e3dab54fd3)

---
 IkiWiki.pm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 2815a5c4c..051c11b43 100644
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -1176,7 +1176,8 @@ sub preprocess ($$$;$$) { #{{{
 		}sx;
 	}
 
-	$content =~ s{$regex}{$handle->($1, $2, $3, $4)}eg;
+	# $4 can be undef if the directive was [[!foo]]
+	$content =~ s{$regex}{$handle->($1, $2, $3, ($4 or ""))}eg;
 	return $content;
 } #}}}
 
-- 
2.45.0