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* lisp/helpers.el: Actually commit the library code.

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Bozhidar Batsov 2013-11-04 17:34:42 +02:00
parent b27cc9fc02
commit 7b530552e8
3 changed files with 51 additions and 0 deletions
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4
etc/NEWS
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@ -742,6 +742,10 @@ frame.
+++
** New macro with-eval-after-load. Like eval-after-load, but better behaved.
** New library helpers.el for misc helper functions
*** `hash-table-keys'
*** `hash-table-values'
** Obsoleted functions:
*** `log10'
*** `dont-compile'

5
lisp/ChangeLog
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@ -13,6 +13,11 @@
2013-11-04 Bozhidar Batsov <bozhidar@batsov.com>
* progmodes/ruby-mode.el (ruby-mode): Clean up docstring.
* subr.el (version<, version<=, version=):
Update docstrings with information for snapshot versions.
* helpers.el: New library for misc helper functions.
(hash-table-keys): New function returning a list of hash keys.
(hash-table-values): New function returning a list of hash values.

42
lisp/helpers.el Normal file
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@ -0,0 +1,42 @@
;;; helpers.el --- Some non-essential library extensions
;; Copyright (C) 2013 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: convenience
;; Package: emacs
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(defsubst hash-table-keys (hash-table)
"Return a list of keys in HASH-TABLE."
(let ((keys '()))
(maphash (lambda (k v) (push k keys)) hash-table)
keys))
(defsubst hash-table-values (hash-table)
"Return a list of values in HASH-TABLE."
(let ((values '()))
(maphash (lambda (k v) (push v values)) hash-table)
values))
(provide 'helpers)
;;; helpers.el ends here