1 ;;; ecomplete.el --- electric completion of addresses and the like
2 ;; Copyright (C) 2006 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 ;; Boston, MA 02110-1301, USA.
31 (defgroup ecomplete nil
32 "Electric completion of email addresses and the like."
35 (defcustom ecomplete-database-file "~/.ecompleterc"
36 "*The name of the file to store the ecomplete data."
40 (defcustom ecomplete-database-file-coding-system 'iso-2022-7bit
41 "Coding system used for writing the ecomplete database file."
42 :type '(repeat (symbol :tag "Coding system"))
45 ;;; Internal variables.
47 (defvar ecomplete-database nil)
50 (defun ecomplete-setup ()
51 (when (file-exists-p ecomplete-database-file)
53 (let ((coding-system-for-read ecomplete-database-file-coding-system))
54 (insert-file-contents ecomplete-database-file)
55 (setq ecomplete-database (read (current-buffer)))))))
57 (defun ecomplete-add-item (type key text)
58 (let ((elems (assq type ecomplete-database))
59 (now (string-to-number
60 (format "%.0f" (time-to-seconds (current-time)))))
63 (push (setq elems (list type)) ecomplete-database))
64 (if (setq entry (assoc key (cdr elems)))
65 (setcdr entry (list (1+ (cadr entry)) now text))
66 (nconc elems (list (list key 1 now text))))))
68 (defun ecomplete-get-item (type key)
69 (assoc key (cdr (assq type ecomplete-database))))
71 (defun ecomplete-save ()
73 (let ((coding-system-for-write ecomplete-database-file-coding-system))
75 (loop for (type . elems) in ecomplete-database
77 (insert (format "(%s\n" type))
79 (prin1 entry (current-buffer))
83 (write-region (point-min) (point-max)
84 ecomplete-database-file nil 'silent))))
86 (defun ecomplete-get-matches (type match)
87 (let* ((elems (cdr (assq type ecomplete-database)))
88 (match (regexp-quote match))
91 (loop for (key count time text) in elems
92 when (string-match match text)
93 collect (list count time text))
95 (> (car l1) (car l2))))))
96 (when (> (length candidates) 10)
97 (setcdr (nthcdr 10 candidates) nil))
98 (unless (zerop (length candidates))
100 (dolist (candidate candidates)
101 (insert (caddr candidate) "\n"))
102 (goto-char (point-min))
103 (put-text-property (point) (1+ (point)) 'ecomplete t)
104 (while (re-search-forward match nil t)
105 (put-text-property (match-beginning 0) (match-end 0)
109 (defun ecomplete-display-matches (type word &optional choose)
110 (let* ((matches (ecomplete-get-matches type word))
112 (max-lines (when matches (- (length (split-string matches "\n")) 2)))
113 (message-log-max nil)
117 (message "No ecomplete matches")
123 (setq highlight (ecomplete-highlight-match-line matches line))
124 (while (not (memq (setq command (read-event highlight)) '(? return)))
127 (setq line (min (1+ line) max-lines)))
129 (setq line (max (1- line) 0))))
130 (setq highlight (ecomplete-highlight-match-line matches line)))
131 (when (eq command 'return)
132 (nth line (split-string matches "\n")))))))
134 (defun ecomplete-highlight-match-line (matches line)
137 (goto-char (point-min))
140 (narrow-to-region (point) (line-end-position))
142 ;; Put the 'region face on any charactes on this line that
143 ;; aren't already highlighted.
144 (unless (get-text-property (point) 'face)
145 (put-text-property (point) (1+ (point)) 'face 'region))
151 ;; arch-tag: 34622935-bb81-4711-a600-57b89c2ece72
152 ;;; ecomplete.el ends here