1  ;;; rails-compat.el ---
 2  
 3  ;; Copyright (C) 2006 Dmitry Galinsky <dima dot exe at gmail dot com>
 4  
 5  ;; Authors: Dmitry Galinsky <dima dot exe at gmail dot com>,
 6  
 7  ;; Keywords: ruby rails languages oop
 8  ;; $URL: svn+ssh://rubyforge/var/svn/emacs-rails/trunk/rails.el $
 9  ;; $Id: rails.el 149 2007-03-29 15:07:49Z dimaexe $
10  
11  ;;; License
12  
13  ;; This program is free software; you can redistribute it and/or
14  ;; modify it under the terms of the GNU General Public License
15  ;; as published by the Free Software Foundation; either version 2
16  ;; of the License, or (at your option) any later version.
17  
18  ;; This program is distributed in the hope that it will be useful,
19  ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
20  ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21  ;; GNU General Public License for more details.
22  
23  ;; You should have received a copy of the GNU General Public License
24  ;; along with this program; if not, write to the Free Software
25  ;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
26  
27  ;;; Code:
28  
29  (eval-when-compile
30    (require 'snippet nil t)
31    (require 'completion-ui nil t))
32  
33  (when (fboundp 'indent-or-complete)
34    (message "WARNNING: the `indent-or-complete' already defined."))
35  
36  (defun indent-or-complete ()
37    "Complete if point is at end of left a leave word, otherwise indent line."
38    (interactive)
39    (cond
40     ;; snippet
41     ((and (boundp 'snippet)
42           snippet)
43      (snippet-next-field))
44  
45     ;; completion-ui
46     ((and (fboundp 'completion-overlay-at-point)
47           (completion-overlay-at-point))
48      (let* ((ov (completion-overlay-at-point))
49             (end (overlay-end ov))
50             ;; setup <SPACE> as last command
51             (last-input-event 32)
52             (last-command-event 32))
53        ;; skip message output
54        (flet ((message (format-string &rest args) nil))
55          (completion-self-insert))))
56  
57     ;; hippie-expand
58     ((looking-at "\\_>")
59      ;; skip message output
60      (flet ((message (format-string &rest args) nil))
61        (hippie-expand nil)))
62  
63     ;; run default indent command
64     (t (indent-for-tab-command))))
65  
66  (when (fboundp 'try-complete-abbrev)
67    (message "WARNING: the function `try-complete-abbrev' is already defined"))
68  
69  (defun try-complete-abbrev (old)
70    (let ((point-end (point))
71          (point-start (point))
72          distance)
73      (save-excursion
74        (while (not (zerop (setq distance (skip-syntax-backward "w"))))
75          (setq point-start (+ point-start distance))))
76      (when (and (not (= point-start point-end))
77                 (not (memq
78                       (get-text-property (- point-end 1) 'face)
79                       '(font-lock-string-face font-lock-comment-face font-lock-doc-face))))
80        (let ((abbr (buffer-substring-no-properties point-start point-end)))
81          (when (and (abbrev-symbol abbr)
82                     (expand-abbrev))
83            t)))))
84  
85  (unless (find 'try-complete-abbrev hippie-expand-try-functions-list)
86    (add-to-list 'hippie-expand-try-functions-list 'try-complete-abbrev))
87  
88  (provide 'rails-compat)