* lisp/emacs-lisp/helpers.el (string-reverse): New function.

3 files changed, 9 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 75cb7f6a235..6b0d18459b1 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -788,6 +788,7 @@ frame.
 *** `hash-table-keys'
 *** `hash-table-values'
 *** `string-join`
+*** `string-reverse`
 *** `string-trim-left'
 *** `string-trim-right'
 *** `string-trim'
diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index c8a341483bc..9554f8f45bb 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,7 @@
+2013-11-26  Bozhidar Batsov  <bozhidar@batsov.com>
+
+        * emacs-lisp/helpers.el (string-reverse): New function.
+
 2013-11-26  Michael Albinus  <michael.albinus@gmx.de>
 
         * net/tramp.el (tramp-file-name-regexp-unified): Support IPv6 host
diff --git a/lisp/emacs-lisp/helpers.el b/lisp/emacs-lisp/helpers.el
index a8e6c494c4d..8be0c628486 100644
--- a/lisp/emacs-lisp/helpers.el
+++ b/lisp/emacs-lisp/helpers.el
@@ -41,6 +41,10 @@
   "Join all STRINGS using SEPARATOR."
   (mapconcat 'identity strings separator))
 
+(defsubst string-reverse (str)
+  "Reverse the string STR."
+  (apply 'string (nreverse (string-to-list str))))
+
 (defsubst string-trim-left (string)
   "Remove leading whitespace from STRING."
   (if (string-match "\\`[ \t\n\r]+" string)