1 ;;; poe-xemacs.el --- poe submodule for XEmacs
3 ;; Copyright (C) 1995 Free Software Foundation, Inc.
4 ;; Copyright (C) 1995,1996,1997,1998 MORIOKA Tomohiko
6 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
7 ;; Keywords: emulation, compatibility, XEmacs
9 ;; This file is part of APEL (A Portable Emacs Library).
11 ;; This program is free software; you can redistribute it and/or
12 ;; modify it under the terms of the GNU General Public License as
13 ;; published by the Free Software Foundation; either version 2, or (at
14 ;; your option) any later version.
16 ;; This program is distributed in the hope that it will be useful, but
17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ;; General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with XEmacs; see the file COPYING. If not, write to the Free
23 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
34 (defun-maybe set-cursor-color (color-name)
35 "Set the text cursor color of the selected frame to COLOR.
36 When called interactively, prompt for the name of the color to use."
37 (interactive "sColor: ")
38 (set-frame-property (selected-frame) 'cursor-color
39 (if (color-instance-p color-name)
41 (make-color-instance color-name))))
47 (defalias-maybe 'face-list 'list-faces)
49 (or (memq 'underline (face-list))
50 (and (fboundp 'make-face)
51 (make-face 'underline)))
53 (or (face-differs-from-default-p 'underline)
54 (set-face-underline-p 'underline t))
63 (defalias 'make-overlay 'make-extent)
64 (defalias 'overlayp 'extentp)
65 (defalias 'overlay-put 'set-extent-property)
66 (defalias 'overlay-buffer 'extent-buffer)
67 (defun move-overlay (extent start end &optional buffer)
68 (set-extent-endpoints extent start end))
69 (defalias 'delete-overlay 'detach-extent)))
75 (defun-maybe dired-other-frame (dirname &optional switches)
76 "\"Edit\" directory DIRNAME. Like `dired' but makes a new frame."
77 (interactive (dired-read-dir-and-switches "in other frame "))
78 (switch-to-buffer-other-frame (dired-noselect dirname switches)))
88 (if (and (= emacs-major-version 19) (<= emacs-minor-version 14))
89 (defun-maybe run-at-time (time repeat function &rest args)
90 (start-itimer (make-temp-name "rat")
94 (defun-maybe run-at-time (time repeat function &rest args)
95 "Function emulating the function of the same name of Emacs.
96 TIME should be nil meaning now, or a number of seconds from now.
97 Return an itimer object which can be used in either `delete-itimer'
99 (apply #'start-itimer "run-at-time"
100 function (if time (max time 1e-9) 1e-9)
102 (defalias 'cancel-timer 'delete-itimer)
103 (defun with-timeout-handler (tag)
104 (throw tag 'timeout))
105 (defmacro-maybe with-timeout (list &rest body)
106 (let ((seconds (car list))
107 (timeout-forms (cdr list)))
108 `(let ((with-timeout-tag (cons nil nil))
109 with-timeout-value with-timeout-timer)
110 (if (catch with-timeout-tag
112 (setq with-timeout-timer
113 (run-at-time ,seconds nil
114 'with-timeout-handler
116 (setq with-timeout-value (progn . ,body))
118 (progn . ,timeout-forms)
119 (cancel-timer with-timeout-timer)
120 with-timeout-value))))))
124 (broken-facility run-at-time-tick-tock
125 "`run-at-time' is not punctual."
126 ;; Note that it doesn't support XEmacsen prior to the version 19.15
127 ;; since `start-itimer' doesn't pass arguments to a timer function.
128 (or (and (= emacs-major-version 19) (<= emacs-minor-version 14))
131 (unless (or itimer-process itimer-timer)
132 (itimer-driver-start))
133 ;; Check whether there is a bug to which the difference of
134 ;; the present time and the time when the itimer driver was
135 ;; woken up is subtracted from the initial itimer value.
136 (let* ((inhibit-quit t)
137 (ctime (current-time))
138 (itimer-timer-last-wakeup
141 (setcar ctime (1- (car ctime)))))
143 (itimer (start-itimer "run-at-time" 'ignore 5)))
144 (sleep-for 0.1) ;; Accept the timeout interrupt.
146 (> (itimer-value itimer) 0)
147 (delete-itimer itimer))))
150 (when-broken run-at-time-tick-tock
151 (defalias 'run-at-time
152 (lambda (time repeat function &rest args)
153 "Function emulating the function of the same name of Emacs.
154 It works correctly for TIME even if there is a bug in the XEmacs core.
155 TIME should be nil meaning now, or a number of seconds from now.
156 Return an itimer object which can be used in either `delete-itimer'
158 (let ((itimers (list nil)))
161 (apply #'start-itimer "fixed-run-at-time"
162 (lambda (itimers repeat function &rest args)
163 (let ((itimer (car itimers)))
168 (lambda (itimer repeat function &rest args)
169 (set-itimer-restart itimer repeat)
170 (set-itimer-function itimer function)
171 (set-itimer-function-arguments itimer args)
172 (apply function args)))
173 (set-itimer-function-arguments
175 (append (list itimer repeat function) args)))
178 (lambda (itimer function &rest args)
179 (delete-itimer itimer)
180 (apply function args)))
181 (set-itimer-function-arguments
183 (append (list itimer function) args)))))
184 1e-9 (if time (max time 1e-9) 1e-9)
185 nil t itimers repeat function args))))))
188 ;;; @ to avoid bug of XEmacs 19.14
191 (or (string-match "^../"
192 (file-relative-name "/usr/local/share" "/usr/local/lib"))
193 ;; This function was imported from Emacs 19.33.
194 (defun file-relative-name (filename &optional directory)
195 "Convert FILENAME to be relative to DIRECTORY
196 (default: default-directory)."
197 (setq filename (expand-file-name filename)
198 directory (file-name-as-directory
200 (or directory default-directory))))
202 (while (not (string-match (concat "^" (regexp-quote directory))
204 (setq directory (file-name-directory (substring directory 0 -1))
205 ancestor (concat "../" ancestor)))
206 (concat ancestor (substring filename (match-end 0))))))
209 ;;; @ Emacs 20.3 emulation
212 (defalias-maybe 'line-beginning-position 'point-at-bol)
213 (defalias-maybe 'line-end-position 'point-at-eol)
215 ;;; @ XEmacs 21 emulation
218 ;; XEmacs 20.5 and later: (set-extent-properties EXTENT PLIST)
219 (defun-maybe set-extent-properties (extent plist)
220 "Change some properties of EXTENT.
221 PLIST is a property list.
222 For a list of built-in properties, see `set-extent-property'."
224 (set-extent-property extent (car plist) (cadr plist))
225 (setq plist (cddr plist))))
231 (product-provide (provide 'poe-xemacs) (require 'apel-ver))
233 ;;; poe-xemacs.el ends here