From e4702126ca8ee01714a13b0ed1df3b7adcd8b63f Mon Sep 17 00:00:00 2001
From: Derek Jones <derek.jones@ellislab.com>
Date: Wed, 14 Jan 2009 21:57:32 +0000
Subject: adjustments to auto_typography() to handle beginning and end lines
 that contain, but do not start/finish with block level elements.

---
 system/libraries/Typography.php | 31 +++++++++++++++++++++----------
 user_guide/changelog.html       |  1 +
 2 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/system/libraries/Typography.php b/system/libraries/Typography.php
index 3875bd5c4..11b3917c0 100644
--- a/system/libraries/Typography.php
+++ b/system/libraries/Typography.php
@@ -138,8 +138,13 @@ class CI_Typography {
 		$str = '';
 		$process = TRUE;
 		$paragraph = FALSE;
+		$current_chunk = 0;
+		$total_chunks = count($chunks);
+		
 		foreach ($chunks as $chunk)
-		{
+		{ 
+			$current_chunk++;
+			
 			// Are we dealing with a tag? If so, we'll skip the processing for this cycle.
 			// Well also set the "process" flag which allows us to skip <pre> tags and a few other things.
 			if (preg_match("#<(/*)(".$this->block_elements.").*?>#", $chunk, $match))
@@ -163,17 +168,23 @@ class CI_Typography {
 				$str .= $chunk;
 				continue;
 			}
-
+			
+			//  Force a newline to make sure end tags get processed by _format_newlines()
+			if ($current_chunk == $total_chunks)
+			{
+				$chunk .= "\n";  
+			}
+			
 			//  Convert Newlines into <p> and <br /> tags
 			$str .= $this->_format_newlines($chunk);
 		}
-
-		// is the whole of the content inside a block level element?
-		if ( ! preg_match("/^\s*<(?:".$this->block_elements.")/i", $str, $match))
+		
+		// No opening block level tag?  Add it if needed.
+		if ( ! preg_match("/^\s*<(?:".$this->block_elements.")/i", $str))
 		{
-			$str = "<p>{$str}</p>";
+			$str = preg_replace("/^(.*?)<(".$this->block_elements.")/i", '<p>$1</p><$2', $str);
 		}
-
+		
 		// Convert quotes, elipsis, em-dashes, non-breaking spaces, and ampersands
 		$str = $this->format_characters($str);
 		
@@ -185,7 +196,7 @@ class CI_Typography {
 			// 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(
 		
@@ -199,7 +210,7 @@ class CI_Typography {
 						
 						// Clean up stray paragraph tags that appear before block level elements
 						'#<p></p><('.$this->block_elements.')#'	=> '<$1',
-						
+
 						// Clean up stray non-breaking spaces preceeding block elements
 						'#(&nbsp;\s*)+<('.$this->block_elements.')#'	=> '  <$2',
 
@@ -223,7 +234,7 @@ class CI_Typography {
 			// otherwise most browsers won't treat them as true paragraphs
 			$table['#<p></p>#'] = '<p>&nbsp;</p>';
 		}
-	
+		
 		return preg_replace(array_keys($table), $table, $str);
 
 	}
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 1801a46b2..9de2b1fae 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -100,6 +100,7 @@ SVN Revision: </p>
 	<li>Fixed a bug where HTML comments and &lt;pre&gt; tags were being parsed in Typography::auto_typography().</li>
 	<li>Fixed a bug with non-breaking space cleanup in Typography::auto_typography().</li>
 	<li>Fixed a bug in database escaping where a compound statement (ie: SUM()) wasn't handled correctly with database prefixes.</li>
+	<li>Tweaked Typography::auto_typography() for some edge-cases.</li>
 </ul>
 
 
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