From 367f394933288a9b05880f20f54719e71d55da3d Mon Sep 17 00:00:00 2001
From: Michel Fortin <michel.fortin@michelf.com>
Date: Wed, 27 Feb 2008 23:19:19 -0500
Subject: [PATCH 1/4] Fix for <hr@example.com> begin taken as a HR tag.

---
 markdown.php | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/markdown.php b/markdown.php
index 49fe027..3b70426 100644
--- a/markdown.php
+++ b/markdown.php
@@ -434,8 +434,7 @@ class Markdown_Parser {
 			
 						[ ]{0,'.$less_than_tab.'}
 						<(hr)				# start tag = $2
-						\b					# word break
-						([^<>])*?			# 
+						'.$attr.'			# attributes
 						/?>					# the matching end tag
 						[ ]*
 						(?=\n{2,}|\Z)		# followed by a blank line or end of document

From d6d9fe79d53d062631aaa952eab9654edea774f5 Mon Sep 17 00:00:00 2001
From: Michel Fortin <michel.fortin@michelf.com>
Date: Wed, 27 Feb 2008 23:21:03 -0500
Subject: [PATCH 2/4] Fix for capitalized URL schemes in autolinks.

---
 markdown.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/markdown.php b/markdown.php
index 3b70426..0313dfb 100644
--- a/markdown.php
+++ b/markdown.php
@@ -1233,7 +1233,7 @@ class Markdown_Parser {
 
 
 	function doAutoLinks($text) {
-		$text = preg_replace_callback('{<((https?|ftp|dict):[^\'">\s]+)>}', 
+		$text = preg_replace_callback('{<((https?|ftp|dict):[^\'">\s]+)>}i', 
 			array(&$this, '_doAutoLinks_url_callback'), $text);
 
 		# Email addresses: <address@domain.foo>

From bfca8fa34fb011f49a2ffea16524d9376f9a5a63 Mon Sep 17 00:00:00 2001
From: Michel Fortin <michel.fortin@michelf.com>
Date: Wed, 27 Feb 2008 23:23:28 -0500
Subject: [PATCH 3/4] Fix for code block starting on the second line of the
 document.

---
 markdown.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/markdown.php b/markdown.php
index 0313dfb..65b73d6 100644
--- a/markdown.php
+++ b/markdown.php
@@ -1028,7 +1028,7 @@ class Markdown_Parser {
 	#	Process Markdown `<pre><code>` blocks.
 	#
 		$text = preg_replace_callback('{
-				(?:\n\n|\A)
+				(?:\n\n|\A\n?)
 				(	            # $1 = the code block -- one or more lines, starting with a space/tab
 				  (?>
 					[ ]{'.$this->tab_width.'}  # Lines must start with a tab or a tab-width of spaces

From 4596f60a01446a08a2aa14b74c85a2ae07425a98 Mon Sep 17 00:00:00 2001
From: Michel Fortin <michel.fortin@michelf.com>
Date: Thu, 28 Feb 2008 06:47:43 -0500
Subject: [PATCH 4/4] Now removing UTF-8 BOM at the start of the document, if
 present.

---
 markdown.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/markdown.php b/markdown.php
index 65b73d6..51a7d22 100644
--- a/markdown.php
+++ b/markdown.php
@@ -254,6 +254,9 @@ class Markdown_Parser {
 		$this->urls = array();
 		$this->titles = array();
 		$this->html_hashes = array();
+		
+		# Remove UTF-8 BOM, if present.
+		$text = preg_replace('{^\xEF\xBB\xBF}', '', $text);
 
 		# Standardize line endings:
 		#   DOS to Unix and Mac to Unix