From c4419e268f01eb964181cfbe16db66c6e7a7cd1e Mon Sep 17 00:00:00 2001
From: Jean-Philippe Lang <jp_lang@yahoo.fr>
Date: Sat, 4 Oct 2008 17:38:31 +0000
Subject: [PATCH] Escape image filename regexp (#1971).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@1924 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 app/helpers/application_helper.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index c3701b37..0a4aab2b 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -244,7 +244,7 @@ module ApplicationHelper
       text = text.gsub(/!((\<|\=|\>)?(\([^\)]+\))?(\[[^\]]+\])?(\{[^\}]+\})?)(\S+\.(gif|jpg|jpeg|png))!/) do |m|
         style = $1
         filename = $6
-        rf = Regexp.new(filename,  Regexp::IGNORECASE)
+        rf = Regexp.new(Regexp.escape(filename),  Regexp::IGNORECASE)
         # search for the picture in attachments
         if found = attachments.detect { |att| att.filename =~ rf }
           image_url = url_for :only_path => only_path, :controller => 'attachments', :action => 'download', :id => found