From: David Maus <dmaus@ictsoc.de>
To: emacs-orgmode@gnu.org
Subject: [PATCH 1/2] Provide function that returns a string with a random (version 4) UUID.
Date: Tue, 18 May 2010 08:10:59 +0200 [thread overview]
Message-ID: <1274163060-10251-2-git-send-email-dmaus@ictsoc.de> (raw)
In-Reply-To: <y>
---
lisp/ChangeLog | 5 +++++
lisp/org-id.el | 24 ++++++++++++++++++++++++
2 files changed, 29 insertions(+), 0 deletions(-)
diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 4fb3aac..fafe7db 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2010-05-16 David Maus <dmaus@ictsoc.de>
+
+ * org-id.el (org-id-uuid): New function. Return string with
+ random (version 4) UUID.
+
2010-05-15 Carsten Dominik <carsten.dominik@gmail.com>
* org-latex.el (org-export-latex-format-image): Add support
diff --git a/lisp/org-id.el b/lisp/org-id.el
index 0678161..6175eee 100644
--- a/lisp/org-id.el
+++ b/lisp/org-id.el
@@ -318,6 +318,30 @@ So a typical ID could look like \"Org:4nd91V40HI\"."
(t (error "Invalid `org-id-method'")))
(concat prefix unique)))
+(defun org-id-uuid ()
+ "Return string with random (version 4) UUID."
+ (let ((rnd (md5 (format "%s%s%s%s%s%s%s"
+ (random t)
+ (current-time)
+ (user-uid)
+ (emacs-pid)
+ (user-full-name)
+ user-mail-address
+ (recent-keys)))))
+ (format "%s-%s-4%s-%s%s-%s"
+ (substring rnd 0 8)
+ (substring rnd 8 12)
+ (substring rnd 13 16)
+ (format "%x"
+ (logior
+ #B10000000
+ (logand
+ #B10111111
+ (string-to-number
+ (substring rnd 16 18) 16))))
+ (substring rnd 18 20)
+ (substring rnd 20 32))))
+
(defun org-id-reverse-string (s)
(mapconcat 'char-to-string (nreverse (string-to-list s)) ""))
--
1.7.1
reply other threads:[~2010-05-18 6:12 UTC|newest]
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