From 3487221d368f8cefd57df8041ad14a18c23d80db Mon Sep 17 00:00:00 2001
From: Brion Vibber <brion@users.mediawiki.org>
Date: Fri, 9 Jun 2006 21:59:26 +0000
Subject: [PATCH] * Fix regression(?) in behavior of initial-whitespace-pre in
 <center>

---
 RELEASE-NOTES               |  1 +
 includes/Parser.php         |  4 ++--
 maintenance/parserTests.txt | 14 ++++++++++++++
 3 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index fa0058d9f5..fac93fbe53 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -469,6 +469,7 @@ it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
 * (bug 6254) Update to Indonesian translation (id) #20
 * (bug 6255) Fix transclusions starting with "#" or "*" in HTML attributes
 * Whitespace now normalized more or less properly in HTML attributes
+* Fix regression(?) in behavior of initial-whitespace-pre in <center>
 
 
 == Compatibility ==
diff --git a/includes/Parser.php b/includes/Parser.php
index db6e2733cc..60aaaedc8a 100644
--- a/includes/Parser.php
+++ b/includes/Parser.php
@@ -1891,10 +1891,10 @@ class Parser
 				wfProfileIn( "$fname-paragraph" );
 				# No prefix (not in list)--go to paragraph mode
 				// XXX: use a stack for nestable elements like span, table and div
-				$openmatch = preg_match('/(<table|<blockquote|<h1|<h2|<h3|<h4|<h5|<h6|<pre|<tr|<p|<ul|<ol|<li|<center|<\\/tr|<\\/td|<\\/th)/iS', $t );
+				$openmatch = preg_match('/(<table|<blockquote|<h1|<h2|<h3|<h4|<h5|<h6|<pre|<tr|<p|<ul|<ol|<li|<\\/center|<\\/tr|<\\/td|<\\/th)/iS', $t );
 				$closematch = preg_match(
 					'/(<\\/table|<\\/blockquote|<\\/h1|<\\/h2|<\\/h3|<\\/h4|<\\/h5|<\\/h6|'.
-					'<td|<th|<div|<\\/div|<hr|<\\/pre|<\\/p|'.$this->mUniqPrefix.'-pre|<\\/li|<\\/ul|<\\/ol|<\\/center)/iS', $t );
+					'<td|<th|<div|<\\/div|<hr|<\\/pre|<\\/p|'.$this->mUniqPrefix.'-pre|<\\/li|<\\/ul|<\\/ol|<center)/iS', $t );
 				if ( $openmatch or $closematch ) {
 					$paragraphStack = false;
 					# TODO bug 5718: paragraph closed
diff --git a/maintenance/parserTests.txt b/maintenance/parserTests.txt
index 489729ba21..f40e31ae87 100644
--- a/maintenance/parserTests.txt
+++ b/maintenance/parserTests.txt
@@ -313,6 +313,20 @@ And a <a href="/wiki/Main_Page" title="Main Page">link</a>
 
 !! end
 
+!! test
+Regression with preformatted in <center>
+!! input
+<center>
+ Blah
+</center>
+!! result
+<center>
+<pre>Blah
+</pre>
+</center>
+
+!! end
+
 !! test
 <pre> with attributes (bug 3202)
 !! input
-- 
2.20.1