X-Git-Url: https://git.hcoop.net/bpt/emacs.git/blobdiff_plain/a9faac5c6333bcbfb30a00debf3de7a44e430e49..9c2d6a4ab2911db8c7ac531fe49d038df521f55b:/lisp/json.el

diff --git a/lisp/json.el b/lisp/json.el
index a82a1d8811..468358ccd1 100644
--- a/lisp/json.el
+++ b/lisp/json.el
@@ -1,9 +1,9 @@
 ;;; json.el --- JavaScript Object Notation parser / generator
 
-;; Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+;; Copyright (C) 2006-2012 Free Software Foundation, Inc.
 
 ;; Author: Edward O'Connor <ted@oconnor.cx>
-;; Version: 1.2
+;; Version: 1.3
 ;; Keywords: convenience
 
 ;; This file is part of GNU Emacs.
@@ -47,6 +47,7 @@
 ;;              other cleanups, bugfixes, and improvements.
 ;; 2006-12-29 - XEmacs support, from Aidan Kehoe <kehoea@parhasard.net>.
 ;; 2008-02-21 - Installed in GNU Emacs.
+;; 2011-10-17 - Patch `json-alist-p' and `json-plist-p' to avoid recursion -tzz
 
 ;;; Code:
 
@@ -108,16 +109,20 @@ this around your call to `json-read' instead of `setq'ing it.")
 
 (defun json-alist-p (list)
   "Non-null if and only if LIST is an alist."
-  (or (null list)
-      (and (consp (car list))
-           (json-alist-p (cdr list)))))
+  (while (consp list)
+    (setq list (if (consp (car list))
+                   (cdr list)
+                 'not-alist)))
+  (null list))
 
 (defun json-plist-p (list)
   "Non-null if and only if LIST is a plist."
-  (or (null list)
-      (and (keywordp (car list))
-           (consp (cdr list))
-           (json-plist-p (cddr list)))))
+  (while (consp list)
+    (setq list (if (and (keywordp (car list))
+                        (consp (cdr list)))
+                   (cddr list)
+                 'not-plist)))
+  (null list))
 
 ;; Reader utilities
 
@@ -161,7 +166,7 @@ this around your call to `json-read' instead of `setq'ing it.")
 (put 'json-number-format 'error-conditions
      '(json-number-format json-error error))
 
-(put 'json-string-escape 'error-message "Bad unicode escape")
+(put 'json-string-escape 'error-message "Bad Unicode escape")
 (put 'json-string-escape 'error-conditions
      '(json-string-escape json-error error))