From def3f3e827c5d8dbfe875f06dd2e4e46d96ad2b4 Mon Sep 17 00:00:00 2001
From: Jason Garber <jg@jasongarber.com>
Date: Sun, 15 Mar 2009 11:35:41 -0400
Subject: [PATCH] Fixed attributes getting escaped multiple times because of
 passing by reference

---
 ext/redcloth_scan/redcloth_scan.rb.rl | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ext/redcloth_scan/redcloth_scan.rb.rl b/ext/redcloth_scan/redcloth_scan.rb.rl
index 5f5db8bb..81023c62 100644
--- a/ext/redcloth_scan/redcloth_scan.rb.rl
+++ b/ext/redcloth_scan/redcloth_scan.rb.rl
@@ -41,9 +41,10 @@ module RedCloth
       return RedCloth::RedclothInline.redcloth_inline2(self, textile_doc, refs)
     end
     
-    def html_esc(str, level=nil)
-      return "" if str.nil? || str.empty?
+    def html_esc(input, level=nil)
+      return "" if input.nil? || input.empty?
 
+      str = input.dup
       str.gsub!('&') { amp({}) }
       str.gsub!('>') { gt({}) }
       str.gsub!('<') { lt({}) }