My Emacs configuration.
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.emacs.d/elpa/use-package-2.4.1/use-package-delight.el

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;;; use-package-delight.el --- Support for the :delight keyword -*- lexical-binding: t; -*-
;; Copyright (C) 2012-2017 John Wiegley
;; Author: John Wiegley <johnw@newartisans.com>
;; Maintainer: John Wiegley <johnw@newartisans.com>
;; Created: 17 Jun 2012
;; Modified: 3 Dec 2017
;; Version: 1.0
;; Package-Requires: ((emacs "24.3") (use-package "2.4"))
;; Keywords: dotemacs startup speed config package
;; URL: https://github.com/jwiegley/use-package
;; This program 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, or (at
;; your option) any later version.
;; This program 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; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; Provides support for the :delight keyword, which is made available by
;; default by requiring `use-package'.
;;; Code:
(require 'use-package-core)
(defun use-package-normalize-delight (name args)
"Normalize ARGS for a single call to `delight'."
(when (eq :eval (car args))
;; Handle likely common mistake.
(use-package-error ":delight mode line constructs must be quoted"))
(cond ((and (= (length args) 1)
(use-package-non-nil-symbolp (car args)))
`(,(nth 0 args) nil ,name))
((= (length args) 2)
`(,(nth 0 args) ,(nth 1 args) ,name))
((= (length args) 3)
args)
(t
(use-package-error
":delight expects `delight' arguments or a list of them"))))
;;;###autoload
(defun use-package-normalize/:delight (name _keyword args)
"Normalize arguments to delight."
(cond ((null args)
`((,(use-package-as-mode name) nil ,name)))
((and (= (length args) 1)
(use-package-non-nil-symbolp (car args)))
`((,(car args) nil ,name)))
((and (= (length args) 1)
(stringp (car args)))
`((,(use-package-as-mode name) ,(car args) ,name)))
((and (= (length args) 1)
(listp (car args))
(eq 'quote (caar args)))
`((,(use-package-as-mode name) ,@(cdar args) ,name)))
((and (= (length args) 2)
(listp (nth 1 args))
(eq 'quote (car (nth 1 args))))
`((,(car args) ,@(cdr (nth 1 args)) ,name)))
(t (mapcar
(apply-partially #'use-package-normalize-delight name)
(if (use-package-non-nil-symbolp (car args))
(list args)
args)))))
;;;###autoload
(defun use-package-handler/:delight (name _keyword args rest state)
(let ((body (use-package-process-keywords name rest state)))
(use-package-concat
body
`((if (fboundp 'delight)
(delight '(,@args)))))))
(add-to-list 'use-package-keywords :delight t)
(provide 'use-package-delight)
;;; use-package-delight.el ends here