change python config, add jupyter and ein

lisp/ein/ein-kill-ring.el

@@ -0,0 +1,55 @@
+;;; ein-kill-ring.el --- Kill-ring for cells    -*- lexical-binding:t -*-
+
+;; Copyright (C) 2012- Takafumi Arakaki
+
+;; Author: Takafumi Arakaki <aka.tkf at gmail.com>
+
+;; This file is NOT part of GNU Emacs.
+
+;; ein-kill-ring.el is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; ein-kill-ring.el is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with ein-kill-ring.el.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Stolen from simple.el.
+
+;;; Code:
+
+(defvar ein:kill-ring nil)
+(defvar ein:kill-ring-yank-pointer nil)
+(defvar ein:kill-ring-max kill-ring-max)
+
+(defun ein:kill-new (obj)
+  "Make OBJ the latest kill in the kill ring `ein:kill-ring'.
+Set `ein:kill-ring-yank-pointer' to point to it."
+  (push obj ein:kill-ring)
+  (if (> (length ein:kill-ring) ein:kill-ring-max)
+      (setcdr (nthcdr (1- ein:kill-ring-max) ein:kill-ring) nil))
+  (setq ein:kill-ring-yank-pointer ein:kill-ring))
+
+(defun ein:current-kill (n &optional do-not-move)
+  "Rotate the yanking point by N places, and then return that kill.
+If optional arg DO-NOT-MOVE is non-nil, then don't actually
+move the yanking point; just return the Nth kill forward."
+  (unless ein:kill-ring (error "Kill ring is empty"))
+  (let ((ARGth-kill-element
+         (nthcdr (mod (- n (length ein:kill-ring-yank-pointer))
+                      (length ein:kill-ring))
+                 ein:kill-ring)))
+    (unless do-not-move
+      (setq ein:kill-ring-yank-pointer ARGth-kill-element))
+    (car ARGth-kill-element)))
+
+(provide 'ein-kill-ring)
+
+;;; ein-kill-ring.el ends here