From b1d0ce627c5557497ec9d527c39493806f8ef37a Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@kodama.kitenet.net>
Date: Mon, 4 Aug 2008 14:58:21 -0400
Subject: [PATCH] improve fix to DTRT for a param of "0" (cherry picked from
 commit 6f2d1536b8ce0bd746c87c00466170435ddb3923)

---
 IkiWiki.pm       | 7 ++++---
 debian/changelog | 7 +++++++
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/IkiWiki.pm b/IkiWiki.pm
index e0793b5fa..4de8f71d6 100644
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -718,7 +718,9 @@ sub preprocess ($$$;$$) { #{{{
 		my $prefix=shift;
 		my $command=shift;
 		my $params=shift;
-		if (length $escape) {
+		$params="" if ! defined $params;
+
+		f (length $escape) {
 			return "[[$prefix$command $params]]";
 		}
 		elsif (exists $hooks{preprocess}{$command}) {
@@ -844,8 +846,7 @@ sub preprocess ($$$;$$) { #{{{
 		}sx;
 	}
 
-	# $4 can be undef if the directive was [[!foo]]
-	$content =~ s{$regex}{$handle->($1, $2, $3, ($4 or ""))}eg;
+	$content =~ s{$regex}{$handle->($1, $2, $3, $4)}eg;
 	return $content;
 } #}}}
 
diff --git a/debian/changelog b/debian/changelog
index adfa2c2f0..e1a8be97f 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+ikiwiki (2.54) UNRELEASED; urgency=low
+
+  * Fix uninitialised value warning from a [[!foo]] preprocessor directive
+    with no whitespace.
+
+ -- Joey Hess <joeyh@debian.org>  Tue, 26 Aug 2008 12:18:36 -0400
+
 ikiwiki (2.53) unstable; urgency=low
 
   * search: generate configuration files once only when rebuilding
-- 
2.39.2