-;; Compatibility functions for earlier versions of emacs
-
+;;; notmuch-compat.el --- compatibility functions for earlier versions of emacs
+;;
;; The functions in this file are copied from more modern versions of
;; emacs and are Copyright (C) 1985-1986, 1992, 1994-1995, 1999-2017
;; Free Software Foundation, Inc.
+;;
+;; This file is part of Notmuch.
+;;
+;; Notmuch 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.
+;;
+;; Notmuch 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 Notmuch. If not, see <https://www.gnu.org/licenses/>.
+
+;;; Code:
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; emacs master has a bugfix for folding long headers when sending
;; messages. Include the fix for earlier versions of emacs. To avoid
;; interfering with gnus we only run the hook when called from
(if (fboundp 'read-char-choice)
(defalias 'notmuch-read-char-choice 'read-char-choice)
(defun notmuch-read-char-choice (prompt chars &optional inhibit-keyboard-quit)
- "Read and return one of CHARS, prompting for PROMPT.
+ "Read and return one of CHARS, prompting for PROMPT.
Any input that is not one of CHARS is ignored.
If optional argument INHIBIT-KEYBOARD-QUIT is non-nil, ignore
This is an exact copy of this function from emacs 24 for use on
emacs 23, except with the one emacs 24 only function it calls
inlined."
- (unless (consp chars)
- (error "Called `read-char-choice' without valid char choices"))
- (let (char done show-help (helpbuf " *Char Help*"))
- (let ((cursor-in-echo-area t)
- (executing-kbd-macro executing-kbd-macro)
- (esc-flag nil))
- (save-window-excursion ; in case we call help-form-show
- (while (not done)
- (unless (get-text-property 0 'face prompt)
- (setq prompt (propertize prompt 'face 'minibuffer-prompt)))
- (setq char (let ((inhibit-quit inhibit-keyboard-quit))
- (read-key prompt)))
- (and show-help (buffer-live-p (get-buffer helpbuf))
- (kill-buffer helpbuf))
- (cond
- ((not (numberp char)))
- ;; If caller has set help-form, that's enough.
- ;; They don't explicitly have to add help-char to chars.
- ((and help-form
- (eq char help-char)
- (setq show-help t)
- ;; This is an inlined copy of help-form-show as that
- ;; was introduced in emacs 24 too.
- (let ((msg (eval help-form)))
- (if (stringp msg)
+ (unless (consp chars)
+ (error "Called `read-char-choice' without valid char choices"))
+ (let (char done show-help (helpbuf " *Char Help*"))
+ (let ((cursor-in-echo-area t)
+ (executing-kbd-macro executing-kbd-macro)
+ (esc-flag nil))
+ (save-window-excursion ; in case we call help-form-show
+ (while (not done)
+ (unless (get-text-property 0 'face prompt)
+ (setq prompt (propertize prompt 'face 'minibuffer-prompt)))
+ (setq char (let ((inhibit-quit inhibit-keyboard-quit))
+ (read-key prompt)))
+ (and show-help (buffer-live-p (get-buffer helpbuf))
+ (kill-buffer helpbuf))
+ (cond
+ ((not (numberp char)))
+ ;; If caller has set help-form, that's enough.
+ ;; They don't explicitly have to add help-char to chars.
+ ((and help-form
+ (eq char help-char)
+ (setq show-help t)
+ ;; This is an inlined copy of help-form-show as that
+ ;; was introduced in emacs 24 too.
+ (let ((msg (eval help-form)))
+ (when (stringp msg)
(with-output-to-temp-buffer " *Char Help*"
(princ msg))))))
- ((memq char chars)
- (setq done t))
- ((and executing-kbd-macro (= char -1))
- ;; read-event returns -1 if we are in a kbd macro and
- ;; there are no more events in the macro. Attempt to
- ;; get an event interactively.
- (setq executing-kbd-macro nil))
- ((not inhibit-keyboard-quit)
- (cond
- ((and (null esc-flag) (eq char ?\e))
- (setq esc-flag t))
- ((memq char '(?\C-g ?\e))
- (keyboard-quit))))))))
- ;; Display the question with the answer. But without cursor-in-echo-area.
- (message "%s%s" prompt (char-to-string char))
- char)))
+ ((memq char chars)
+ (setq done t))
+ ((and executing-kbd-macro (= char -1))
+ ;; read-event returns -1 if we are in a kbd macro and
+ ;; there are no more events in the macro. Attempt to
+ ;; get an event interactively.
+ (setq executing-kbd-macro nil))
+ ((not inhibit-keyboard-quit)
+ (cond
+ ((and (null esc-flag) (eq char ?\e))
+ (setq esc-flag t))
+ ((memq char '(?\C-g ?\e))
+ (keyboard-quit))))))))
+ ;; Display the question with the answer. But without cursor-in-echo-area.
+ (message "%s%s" prompt (char-to-string char))
+ char)))
;; End of compatibility functions
projects / notmuch / blobdiff