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[Emacs-diffs] Changes to emacs/lisp/subr.el
From: |
Colin Walters |
Subject: |
[Emacs-diffs] Changes to emacs/lisp/subr.el |
Date: |
Sat, 08 Jun 2002 16:48:16 -0400 |
Index: emacs/lisp/subr.el
diff -c emacs/lisp/subr.el:1.305 emacs/lisp/subr.el:1.306
*** emacs/lisp/subr.el:1.305 Thu May 30 13:12:53 2002
--- emacs/lisp/subr.el Sat Jun 8 16:48:15 2002
***************
*** 191,196 ****
--- 191,223 ----
(delq elt (copy-sequence list))
list))
+ (defun copy-list (list)
+ "Return a copy of a list, which may be a dotted list.
+ The elements of the list are not copied, just the list structure itself."
+ (if (consp list)
+ (let ((res nil))
+ (while (consp list) (push (pop list) res))
+ (prog1 (nreverse res) (setcdr res list)))
+ (car list)))
+
+ (defun copy-tree (tree &optional vecp)
+ "Make a copy of TREE.
+ If TREE is a cons cell, this recursively copies both its car and its cdr.
+ Contrast to copy-sequence, which copies only along the cdrs. With second
+ argument VECP, this copies vectors as well as conses."
+ (if (consp tree)
+ (let ((p (setq tree (copy-list tree))))
+ (while (consp p)
+ (if (or (consp (car p)) (and vecp (vectorp (car p))))
+ (setcar p (copy-tree (car p) vecp)))
+ (or (listp (cdr p)) (setcdr p (copy-tree (cdr p) vecp)))
+ (cl-pop p)))
+ (if (and vecp (vectorp tree))
+ (let ((i (length (setq tree (copy-sequence tree)))))
+ (while (>= (setq i (1- i)) 0)
+ (aset tree i (copy-tree (aref tree i) vecp))))))
+ tree)
+
(defun assoc-default (key alist &optional test default)
"Find object KEY in a pseudo-alist ALIST.
ALIST is a list of conses or objects. Each element (or the element's car,
- [Emacs-diffs] Changes to emacs/lisp/subr.el,
Colin Walters <=
- [Emacs-diffs] Changes to emacs/lisp/subr.el, Richard M. Stallman, 2002/06/10
- [Emacs-diffs] Changes to emacs/lisp/subr.el, Miles Bader, 2002/06/11
- [Emacs-diffs] Changes to emacs/lisp/subr.el, Miles Bader, 2002/06/14
- [Emacs-diffs] Changes to emacs/lisp/subr.el, Miles Bader, 2002/06/14
- [Emacs-diffs] Changes to emacs/lisp/subr.el, Stefan Monnier, 2002/06/23
- [Emacs-diffs] Changes to emacs/lisp/subr.el, Juanma Barranquero, 2002/06/27