From aef8228b0eed867c4069a8ce7917f3fcfe01794d Mon Sep 17 00:00:00 2001
From: Jean-Philippe Lang <jp_lang@yahoo.fr>
Date: Fri, 29 Apr 2011 07:08:39 +0000
Subject: Merged r5100 from trunk.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/1.1-stable@5572 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 lib/redcloth3.rb                                             |  6 ++++--
 .../lib/redmine/wiki_formatting/textile_formatter_test.rb    | 12 +++++++++---
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/lib/redcloth3.rb b/lib/redcloth3.rb
index 7c9df0727..848aa7042 100644
--- a/lib/redcloth3.rb
+++ b/lib/redcloth3.rb
@@ -707,11 +707,13 @@ class RedCloth3 < String
             atts = pba( atts )
 
             # pass to prefix handler
+            replacement = nil
             if respond_to? "textile_#{ tag }", true
-                text.gsub!( $&, method( "textile_#{ tag }" ).call( tag, atts, cite, content ) )
+              replacement = method( "textile_#{ tag }" ).call( tag, atts, cite, content )
             elsif respond_to? "textile_#{ tagpre }_", true
-                text.gsub!( $&, method( "textile_#{ tagpre }_" ).call( tagpre, num, atts, cite, content ) )
+              replacement = method( "textile_#{ tagpre }_" ).call( tagpre, num, atts, cite, content )  
             end
+            text.gsub!( $& ) { replacement } if replacement
         end
     end
     
diff --git a/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb b/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
index 72cb9dc55..69b410e83 100644
--- a/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
+++ b/test/unit/lib/redmine/wiki_formatting/textile_formatter_test.rb
@@ -64,12 +64,18 @@ class Redmine::WikiFormatting::TextileFormatterTest < HelperTestCase
       '@<Location /redmine>@'    => '<code>&lt;Location /redmine&gt;</code>'
     )
   end
-  
+
   def test_escaping
     assert_html_output(
       'this is a <script>'      => 'this is a &lt;script&gt;'
     )
   end
+
+  def test_use_of_backslashes_followed_by_numbers_in_headers
+    assert_html_output({
+      'h1. 2009\02\09'      => '<h1>2009\02\09</h1>'
+    }, false)
+  end
   
   def test_double_dashes_should_not_strikethrough
     assert_html_output(
@@ -88,9 +94,9 @@ class Redmine::WikiFormatting::TextileFormatterTest < HelperTestCase
   
   private
   
-  def assert_html_output(to_test)
+  def assert_html_output(to_test, expect_paragraph = true)
     to_test.each do |text, expected|
-      assert_equal "<p>#{expected}</p>", @formatter.new(text).to_html, "Formatting the following text failed:\n===\n#{text}\n===\n"
+      assert_equal(( expect_paragraph ? "<p>#{expected}</p>" : expected ), @formatter.new(text).to_html, "Formatting the following text failed:\n===\n#{text}\n===\n")
     end
   end
 end
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