mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-27 10:54:40 +00:00
138 lines
4.8 KiB
EmacsLisp
138 lines
4.8 KiB
EmacsLisp
;;; org-mks.el --- Multi-key-selection for Org-mode
|
|
|
|
;; Copyright (C) 2010-2011 Free Software Foundation, Inc.
|
|
|
|
;; Author: Carsten Dominik <carsten at orgmode dot org>
|
|
;; Keywords: outlines, hypermedia, calendar, wp
|
|
;; Homepage: http://orgmode.org
|
|
;; Version: 7.7
|
|
;;
|
|
;; 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:
|
|
|
|
(require 'org)
|
|
(eval-when-compile
|
|
(require 'cl))
|
|
|
|
(defun org-mks (table title &optional prompt specials)
|
|
"Select a member of an alist with multiple keys.
|
|
TABLE is the alist which should contain entries where the car is a string.
|
|
There should be two types of entries.
|
|
|
|
1. prefix descriptions like (\"a\" \"Description\")
|
|
This indicates that `a' is a prefix key for multi-letter selection, and
|
|
that there are entries following with keys like \"ab\", \"ax\"...
|
|
|
|
2. Selectable members must have more than two elements, with the first
|
|
being the string of keys that lead to selecting it, and the second a
|
|
short description string of the item.
|
|
|
|
The command will then make a temporary buffer listing all entries
|
|
that can be selected with a single key, and all the single key
|
|
prefixes. When you press the key for a single-letter entry, it is selected.
|
|
When you press a prefix key, the commands (and maybe further prefixes)
|
|
under this key will be shown and offered for selection.
|
|
|
|
TITLE will be placed over the selection in the temporary buffer,
|
|
PROMPT will be used when prompting for a key. SPECIAL is an alist with
|
|
also (\"key\" \"description\") entries. When one of these is selection,
|
|
only the bare key is returned."
|
|
(setq prompt (or prompt "Select: "))
|
|
(let (tbl orig-table dkey ddesc des-keys allowed-keys
|
|
current prefix rtn re pressed buffer (inhibit-quit t))
|
|
(save-window-excursion
|
|
(setq buffer (org-switch-to-buffer-other-window "*Org Select*"))
|
|
(setq orig-table table)
|
|
(catch 'exit
|
|
(while t
|
|
(erase-buffer)
|
|
(insert title "\n\n")
|
|
(setq tbl table
|
|
des-keys nil
|
|
allowed-keys nil)
|
|
(setq prefix (if current (concat current " ") ""))
|
|
(while tbl
|
|
(cond
|
|
((and (= 2 (length (car tbl))) (= (length (caar tbl)) 1))
|
|
;; This is a description on this level
|
|
(setq dkey (caar tbl) ddesc (cadar tbl))
|
|
(pop tbl)
|
|
(push dkey des-keys)
|
|
(push dkey allowed-keys)
|
|
(insert prefix "[" dkey "]" "..." " " ddesc "..." "\n")
|
|
;; Skip keys which are below this prefix
|
|
(setq re (concat "\\`" (regexp-quote dkey)))
|
|
(while (and tbl (string-match re (caar tbl))) (pop tbl)))
|
|
((= 2 (length (car tbl)))
|
|
;; Not yet a usable description, skip it
|
|
)
|
|
(t
|
|
;; usable entry on this level
|
|
(insert prefix "[" (caar tbl) "]" " " (nth 1 (car tbl)) "\n")
|
|
(push (caar tbl) allowed-keys)
|
|
(pop tbl))))
|
|
(when specials
|
|
(insert "-------------------------------------------------------------------------------\n")
|
|
(let ((sp specials))
|
|
(while sp
|
|
(insert (format "[%s] %s\n"
|
|
(caar sp) (nth 1 (car sp))))
|
|
(push (caar sp) allowed-keys)
|
|
(pop sp))))
|
|
(push "\C-g" allowed-keys)
|
|
(goto-char (point-min))
|
|
(if (not (pos-visible-in-window-p (point-max)))
|
|
(org-fit-window-to-buffer))
|
|
(message prompt)
|
|
(setq pressed (char-to-string (read-char-exclusive)))
|
|
(while (not (member pressed allowed-keys))
|
|
(message "Invalid key `%s'" pressed) (sit-for 1)
|
|
(message prompt)
|
|
(setq pressed (char-to-string (read-char-exclusive))))
|
|
(when (equal pressed "\C-g")
|
|
(kill-buffer buffer)
|
|
(error "Abort"))
|
|
(when (and (not (assoc pressed table))
|
|
(not (member pressed des-keys))
|
|
(assoc pressed specials))
|
|
(throw 'exit (setq rtn pressed)))
|
|
(unless (member pressed des-keys)
|
|
(throw 'exit (setq rtn (rassoc (cdr (assoc pressed table))
|
|
orig-table))))
|
|
(setq current (concat current pressed))
|
|
(setq table (mapcar
|
|
(lambda (x)
|
|
(if (and (> (length (car x)) 1)
|
|
(equal (substring (car x) 0 1) pressed))
|
|
(cons (substring (car x) 1) (cdr x))
|
|
nil))
|
|
table))
|
|
(setq table (remove nil table)))))
|
|
(when buffer (kill-buffer buffer))
|
|
rtn))
|
|
|
|
(provide 'org-mks)
|
|
|
|
|
|
|
|
;;; org-mks.el ends here
|