From c1e4085251ddfd4e126b761120183d4054f1cb44 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Gross?=
 <seb•ɑƬ•chezwam•ɖɵʈ•org>
Date: Wed, 6 Aug 2014 10:56:16 +0200
Subject: [PATCH] Add regular expression escaping filter.

---
 lib/ansible/plugins/filter/core.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/ansible/plugins/filter/core.py b/lib/ansible/plugins/filter/core.py
index e8e3e17f775..a4f16e907d4 100644
--- a/lib/ansible/plugins/filter/core.py
+++ b/lib/ansible/plugins/filter/core.py
@@ -222,6 +222,10 @@ def version_compare(value, version, operator='eq', strict=False):
     except Exception, e:
         raise errors.AnsibleFilterError('Version comparison: %s' % e)
 
+def re_escape(string):
+    '''Escape all regular expressions special characters from STRING.'''
+    return re.escape(string)
+
 @environmentfilter
 def rand(environment, end, start=None, step=None):
     r = SystemRandom()
@@ -356,6 +360,7 @@ class FilterModule(object):
             'search': search,
             'regex': regex,
             'regex_replace': regex_replace,
+            're_escape': re_escape,
 
             # ? : ;
             'ternary': ternary,