1
0
mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-12-16 09:50:25 +00:00
emacs/lisp/ecomplete.el
Paul Eggert bc511a64f6 Prefer HTTPS to FTP and HTTP in documentation
Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November.  Change these FTP URLs to https://ftp.gnu.org
instead.  Make similar changes for URLs to other organizations moving
away from FTP.  Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
2017-09-13 15:54:37 -07:00

159 lines
4.9 KiB
EmacsLisp

;;; ecomplete.el --- electric completion of addresses and the like
;; Copyright (C) 2006-2017 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: mail
;; 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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(eval-when-compile
(require 'cl))
(defgroup ecomplete nil
"Electric completion of email addresses and the like."
:group 'mail)
(defcustom ecomplete-database-file "~/.ecompleterc"
"The name of the file to store the ecomplete data."
:group 'ecomplete
:type 'file)
(defcustom ecomplete-database-file-coding-system 'iso-2022-7bit
"Coding system used for writing the ecomplete database file."
:type '(symbol :tag "Coding system")
:group 'ecomplete)
;;; Internal variables.
(defvar ecomplete-database nil)
;;;###autoload
(defun ecomplete-setup ()
(when (file-exists-p ecomplete-database-file)
(with-temp-buffer
(let ((coding-system-for-read ecomplete-database-file-coding-system))
(insert-file-contents ecomplete-database-file)
(setq ecomplete-database (read (current-buffer)))))))
(defun ecomplete-add-item (type key text)
(let ((elems (assq type ecomplete-database))
(now (string-to-number (format "%.0f" (float-time))))
entry)
(unless elems
(push (setq elems (list type)) ecomplete-database))
(if (setq entry (assoc key (cdr elems)))
(setcdr entry (list (1+ (cadr entry)) now text))
(nconc elems (list (list key 1 now text))))))
(defun ecomplete-get-item (type key)
(assoc key (cdr (assq type ecomplete-database))))
(defun ecomplete-save ()
(with-temp-buffer
(let ((coding-system-for-write ecomplete-database-file-coding-system))
(insert "(")
(loop for (type . elems) in ecomplete-database
do
(insert (format "(%s\n" type))
(dolist (entry elems)
(prin1 entry (current-buffer))
(insert "\n"))
(insert ")\n"))
(insert ")")
(write-region (point-min) (point-max)
ecomplete-database-file nil 'silent))))
(defun ecomplete-get-matches (type match)
(let* ((elems (cdr (assq type ecomplete-database)))
(match (regexp-quote match))
(candidates
(sort
(loop for (key count time text) in elems
when (string-match match text)
collect (list count time text))
(lambda (l1 l2)
(> (car l1) (car l2))))))
(when (> (length candidates) 10)
(setcdr (nthcdr 10 candidates) nil))
(unless (zerop (length candidates))
(with-temp-buffer
(dolist (candidate candidates)
(insert (caddr candidate) "\n"))
(goto-char (point-min))
(put-text-property (point) (1+ (point)) 'ecomplete t)
(while (re-search-forward match nil t)
(put-text-property (match-beginning 0) (match-end 0)
'face 'isearch))
(buffer-string)))))
(defun ecomplete-display-matches (type word &optional choose)
(let* ((matches (ecomplete-get-matches type word))
(line 0)
(max-lines (when matches (- (length (split-string matches "\n")) 2)))
(message-log-max nil)
command highlight)
(if (not matches)
(progn
(message "No ecomplete matches")
nil)
(if (not choose)
(progn
(message "%s" matches)
nil)
(setq highlight (ecomplete-highlight-match-line matches line))
(let ((local-map (make-sparse-keymap))
selected)
(define-key local-map (kbd "RET")
(lambda () (setq selected (nth line (split-string matches "\n")))))
(define-key local-map (kbd "M-n")
(lambda () (setq line (min (1+ line) max-lines))))
(define-key local-map (kbd "M-p")
(lambda () (setq line (max (1- line) 0))))
(let ((overriding-local-map local-map))
(while (and (null selected)
(setq command (read-key-sequence highlight))
(lookup-key local-map command))
(apply (key-binding command) nil)
(setq highlight (ecomplete-highlight-match-line matches line))))
(if selected
(message selected)
(message "Abort"))
selected)))))
(defun ecomplete-highlight-match-line (matches line)
(with-temp-buffer
(insert matches)
(goto-char (point-min))
(forward-line line)
(save-restriction
(narrow-to-region (point) (point-at-eol))
(while (not (eobp))
;; Put the 'region face on any characters on this line that
;; aren't already highlighted.
(unless (get-text-property (point) 'face)
(put-text-property (point) (1+ (point)) 'face 'highlight))
(forward-char 1)))
(buffer-string)))
(provide 'ecomplete)
;;; ecomplete.el ends here