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 "Suppression of duplicate articles."
35 (defcustom ecomplete-database-file "~/.ecompleterc"
36 "*The name of the file to store the ecomplete data."
40 ;;; Internal variables.
42 (defvar ecomplete-database nil)
44 (defun ecomplete-setup ()
45 (when (file-exists-p ecomplete-database-file)
47 (insert-file-contents ecomplete-database-file)
48 (setq ecomplete-database (read (current-buffer))))))
50 (defun ecomplete-add-item (type key text)
51 (let ((elems (assq type ecomplete-database))
52 (now (string-to-number
53 (format "%.0f" (time-to-seconds (current-time)))))
56 (push (setq elems (list type)) ecomplete-database))
57 (if (setq entry (assoc key (cdr elems)))
58 (setcdr entry (list (1+ (cadr entry)) now text))
59 (nconc elems (list (list key 1 now text))))))
61 (defun ecomplete-get-item (type key)
62 (assoc key (cdr (assq type ecomplete-database))))
64 (defun ecomplete-save ()
67 (loop for (type . elems) in ecomplete-database
69 (insert (format "(%s\n" type))
71 (prin1 entry (current-buffer))
75 (write-region (point-min) (point-max) ecomplete-database-file nil 'silent)))
77 (defun ecomplete-get-matches (type match)
78 (let* ((elems (cdr (assq type ecomplete-database)))
79 (match (regexp-quote match))
82 (loop for (key count time text) in elems
83 when (string-match match text)
84 collect (list count time text))
86 (> (car l1) (car l2))))))
87 (when (> (length candidates) 10)
88 (setcdr (nthcdr 10 candidates) nil))
89 (unless (zerop (length candidates))
91 (dolist (candidate candidates)
92 (insert (caddr candidate) "\n"))
93 (goto-char (point-min))
94 (put-text-property (point) (1+ (point)) 'ecomplete t)
95 (while (re-search-forward match nil t)
96 (put-text-property (match-beginning 0) (match-end 0)
100 (defun ecomplete-display-matches (type word)
101 (let* ((matches (ecomplete-get-matches type word))
103 (max-lines (when matches (- (length (split-string matches "\n")) 2)))
107 (message "No ecomplete matches")
109 (setq highlight (ecomplete-highlight-match-line matches line))
110 (while (not (memq (setq command (read-event highlight)) '(? return)))
113 (setq line (min (1+ line) max-lines)))
115 (setq line (max (1- line) 0))))
116 (setq highlight (ecomplete-highlight-match-line matches line)))
117 (when (eq command 'return)
118 (nth line (split-string matches "\n"))))))
120 (defun ecomplete-highlight-match-line (matches line)
123 (goto-char (point-min))
126 (narrow-to-region (point) (line-end-position))
128 ;; Put the 'region face on any charactes on this line that
129 ;; aren't already highlighted.
130 (unless (get-text-property (point) 'face)
131 (put-text-property (point) (1+ (point)) 'face 'region))
137 ;;; ecomplete.el ends here