From e244a9e33a22d7651b665b93107ac6d89f00e05a Mon Sep 17 00:00:00 2001
From: dana <dana@dana.is>
Date: Thu, 15 Oct 2015 22:01:42 -0500
Subject: [PATCH 1/3] Made fn_backlink_text user-configurable, added U+FE0E to
 prevent iOS emoji display

---
 Michelf/MarkdownExtra.php | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Michelf/MarkdownExtra.php b/Michelf/MarkdownExtra.php
index 87d0308..1a3e161 100644
--- a/Michelf/MarkdownExtra.php
+++ b/Michelf/MarkdownExtra.php
@@ -32,6 +32,12 @@ class MarkdownExtra extends \Michelf\Markdown {
 	public $fn_link_class = "footnote-ref";
 	public $fn_backlink_class = "footnote-backref";
 
+	# Text to be displayed within footnote backlinks. The default is '↩'; the
+	# U+FE0E on the end is a Unicode variant selector used to prevent iOS from
+	# displaying the arrow character as an emoji. Note: This value is inserted
+	# as raw HTML, so dangerous/special characters must be pre-escaped!
+	public $fn_backlink_text = '&#8617;&#xFE0E;';
+
 	# Class name for table cell alignment (%% replaced left/center/right)
 	# For instance: 'go-%%' becomes 'go-left' or 'go-right' or 'go-center'
 	# If empty, the align attribute is used instead of a class name.
@@ -1475,6 +1481,7 @@ class MarkdownExtra extends \Michelf\Markdown {
 				$title = $this->encodeAttribute($title);
 				$attr .= " title=\"$title\"";
 			}
+			$backlink_text = $this->fn_backlink_text;
 			$num = 0;
 			
 			while (!empty($this->footnotes_ordered)) {
@@ -1494,9 +1501,9 @@ class MarkdownExtra extends \Michelf\Markdown {
 				$note_id = $this->encodeAttribute($note_id);
 
 				# Prepare backlink, multiple backlinks if multiple references
-				$backlink = "<a href=\"#fnref:$note_id\"$attr>&#8617;</a>";
+				$backlink = "<a href=\"#fnref:$note_id\"$attr>$backlink_text</a>";
 				for ($ref_num = 2; $ref_num <= $ref_count; ++$ref_num) {
-					$backlink .= " <a href=\"#fnref$ref_num:$note_id\"$attr>&#8617;</a>";
+					$backlink .= " <a href=\"#fnref$ref_num:$note_id\"$attr>$backlink_text</a>";
 				}
 				# Add backlink to last paragraph; create new paragraph if needed.
 				if (preg_match('{</p>$}', $footnote)) {

From e1e3fc2a01db1d6b4347c63ea96cb72f99b30df4 Mon Sep 17 00:00:00 2001
From: Michel Fortin <michel.fortin@michelf.com>
Date: Fri, 16 Oct 2015 21:13:21 -0400
Subject: [PATCH 2/3] Renaming `fn_backlink_text` to `fn_backlink_html` to
 clarify that this is HTML content.

---
 Michelf/MarkdownExtra.php | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/Michelf/MarkdownExtra.php b/Michelf/MarkdownExtra.php
index 1a3e161..af079c4 100644
--- a/Michelf/MarkdownExtra.php
+++ b/Michelf/MarkdownExtra.php
@@ -32,11 +32,10 @@ class MarkdownExtra extends \Michelf\Markdown {
 	public $fn_link_class = "footnote-ref";
 	public $fn_backlink_class = "footnote-backref";
 
-	# Text to be displayed within footnote backlinks. The default is '↩'; the
-	# U+FE0E on the end is a Unicode variant selector used to prevent iOS from
-	# displaying the arrow character as an emoji. Note: This value is inserted
-	# as raw HTML, so dangerous/special characters must be pre-escaped!
-	public $fn_backlink_text = '&#8617;&#xFE0E;';
+	# Content to be displayed within footnote backlinks. The default is '↩';
+	# the U+FE0E on the end is a Unicode variant selector used to prevent iOS
+	# from displaying the arrow character as an emoji.
+	public $fn_backlink_html = '&#8617;&#xFE0E;';
 
 	# Class name for table cell alignment (%% replaced left/center/right)
 	# For instance: 'go-%%' becomes 'go-left' or 'go-right' or 'go-center'
@@ -1481,7 +1480,7 @@ class MarkdownExtra extends \Michelf\Markdown {
 				$title = $this->encodeAttribute($title);
 				$attr .= " title=\"$title\"";
 			}
-			$backlink_text = $this->fn_backlink_text;
+			$backlink_text = $this->fn_backlink_html;
 			$num = 0;
 			
 			while (!empty($this->footnotes_ordered)) {

From 8c45ad58f412e506fadf1dbadf1a8d1c2c08e500 Mon Sep 17 00:00:00 2001
From: Michel Fortin <michel.fortin@michelf.com>
Date: Fri, 16 Oct 2015 21:18:28 -0400
Subject: [PATCH 3/3] Updating Readme file for footnote backlink changes.

---
 Readme.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Readme.md b/Readme.md
index 4facd76..bc63c79 100644
--- a/Readme.md
+++ b/Readme.md
@@ -187,6 +187,16 @@ Current Version
 	of the special attribute block). Credits to Mario Konrad for providing the 
 	implementation.
 
+*	The curled arrow character for the backlink in footnotes is now followed
+	by a Unicode variant selector to prevent it from being displayed in emoji
+	form on iOS.
+
+	Note that in older browsers the variant selector is often interpreted as a 
+	separate character, making it visible after the arrow. So there is now a 
+	also a `fn_backlink_html` configuration variable that can be used to set 
+	the link text to something else. Credits to Dana for providing the 
+	implementation.
+
 
 PHP Markdown Lib 1.5.0 (1 Mar 2015)