From 4777fb822d25d91f236298360a406cfbb0f38091 Mon Sep 17 00:00:00 2001
From: Derek Jones <derek.jones@ellislab.com>
Date: Thu, 11 Dec 2008 17:55:42 +0000
Subject: more accurate HTML comment restoration

---
 system/libraries/Typography.php | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'system')

diff --git a/system/libraries/Typography.php b/system/libraries/Typography.php
index a4d1e3548..3875bd5c4 100644
--- a/system/libraries/Typography.php
+++ b/system/libraries/Typography.php
@@ -180,9 +180,12 @@ class CI_Typography {
 		// restore HTML comments
 		for ($i = 0, $total = count($html_comments); $i < $total; $i++)
 		{
-			$str = preg_replace('#(?:<p>)?{@HC'.$i.'}(?:\s*</p>)?#s', $html_comments[$i], $str);
+			// remove surrounding paragraph tags, but only if there's an opening paragraph tag
+			// otherwise HTML comments at the ends of paragraphs will have the closing tag removed
+			// if '<p>{@HC1}' then replace <p>{@HC1}</p> with the comment, else replace only {@HC1} with the comment
+			$str = preg_replace('#(?(?=<p>\{@HC'.$i.'\})<p>\{@HC'.$i.'\}(\s*</p>)|\{@HC'.$i.'\})#s', $html_comments[$i], $str);
 		}
-				
+
 		// Final clean up
 		$table = array(
 		
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