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- ;;; lucid.el --- Emulate some Lucid Emacs functions.
- ;; Copyright (C) 1993 Free Software Foundation, Inc.
-
- ;; 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 2, 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; see the file COPYING. If not, write to
- ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-
- (defun add-timeout (secs function object &optional resignal)
- (run-at-time secs resignal function object))
-
- (defun disable-timeout (timeout)
- (cancel-timer timeout))
-
- (defun copy-tree (tree)
- (if (consp tree)
- (cons (copy-tree (car tree))
- (copy-tree (cdr tree)))
- (if (vectorp tree)
- (let* ((new (copy-sequence tree))
- (i (1- (length new))))
- (while (>= i 0)
- (aset new i (copy-tree (aref new i)))
- (setq i (1- i)))
- new)
- tree)))
-
- (defalias 'current-time-seconds 'current-time)
-
- (defun keymap-parent (keymap)
- (let ((tail (cdr keymap)))
- (while (and tail (not (eq (car tail) 'keymap)))
- (setq tail (cdr tail)))
- tail))
-
- (defun set-keymap-parent (keymap new-parent)
- (let ((tail (cdr keymap)))
- (while (and tail (cdr tail) (not (eq (car (cdr tail)) 'keymap)))
- (setq tail (cdr tail)))
- (if tail
- (setcdr tail new-parent))))
-
- (defun remove-hook (hook-var function)
- (if (boundp 'hook-var)
- (set hook-var (delq function (symbol-value hook-var)))))
-
- (defun remprop (symbol prop)
- (let ((plist (symbol-plist symbol)))
- (while (eq (car plist) prop)
- (setplist symbol (setq plist (cdr (cdr plist)))))
- (while plist
- (if (eq (nth 2 plist) prop)
- (setcdr (cdr plist) (nthcdr 4 plist)))
- (setq plist (cdr (cdr plist))))))
-
- (defun map-keymap (function keymap &optional sort-first)
- "Call FUNCTION for every binding in KEYMAP.
- This includes bindings inherited from a parent keymap.
- FUNCTION receives two arguments each time it is called:
- the character (more generally, the event type) that is bound,
- and the binding it has.
-
- Note that passing the event type directly to `define-key' does not work
- in Emacs 19. We do not emulate that particular feature of Lucid Emacs.
- If your code does that, modify it to make a vector containing the event
- type that you get. That will work in both versions of Emacs."
- (if sort-first
- (let (list)
- (map-keymap (function (lambda (a b)
- (setq list (cons (cons a b) list))))
- keymap)
- (setq list (sort list
- (function (lambda (a b)
- (setq a (car a) b (car b))
- (if (integerp a)
- (if (integerp b) (< a b)
- t)
- (if (integerp b) t
- (string< a b)))))))
- (while list
- (funcall function (car (car list)) (cdr (car list)))
- (setq list (cdr list))))
- (while (consp keymap)
- (if (consp (car keymap))
- (funcall function (car (car keymap)) (cdr (car keymap)))
- (if (vectorp (car keymap))
- (let ((i (1- (length (car keymap))))
- (vector (car keymap)))
- (while (>= i 0)
- (funcall function i (aref vector i))
- (setq i (1- i))))))
- (setq keymap (cdr keymap)))))
-
- (defun real-path-name (name &optional default)
- (file-truename (expand-file-name name default)))
-
- ;; It's not clear what to return if the mouse is not in FRAME.
- (defun read-mouse-position (frame)
- (let ((pos (mouse-position)))
- (if (eq (car pos) frame)
- (cdr pos))))
-
- (defun switch-to-other-buffer (arg)
- "Switch to the previous buffer.
- With a numeric arg N, switch to the Nth most recent buffer.
- With an arg of 0, buries the current buffer at the
- bottom of the buffer stack."
- (interactive "p")
- (if (eq arg 0)
- (bury-buffer (current-buffer)))
- (switch-to-buffer
- (if (<= arg 1) (other-buffer (current-buffer))
- (nth (1+ arg)
- (apply 'nconc
- (mapcar
- (lambda (buf)
- (if (= ?\ (string-to-char (buffer-name buf)))
- nil
- (list buf)))
- (buffer-list)))))))
-
- (defalias 'find-face 'internal-find-face)
- (defalias 'get-face 'internal-get-face)
- (defalias 'try-face-font 'internal-try-face-font)
-
- ;; Support the Lucid names with `screen' instead of `frame'.
-
- (defalias 'current-screen-configuration 'current-frame-configuration)
- (defalias 'delete-screen 'delete-frame)
- (defalias 'find-file-new-screen 'find-file-other-frame)
- (defalias 'find-file-read-only-new-screen 'find-file-read-only-other-frame)
- (defalias 'find-tag-new-screen 'find-tag-other-frame)
- ;;(defalias 'focus-screen 'focus-frame)
- (defalias 'iconify-screen 'iconify-frame)
- (defalias 'mail-new-screen 'mail-other-frame)
- (defalias 'make-screen-invisible 'make-frame-invisible)
- (defalias 'make-screen-visible 'make-frame-visible)
- ;; (defalias 'minibuffer-screen-list 'minibuffer-frame-list)
- (defalias 'modify-screen-parameters 'modify-frame-parameters)
- (defalias 'next-screen 'next-frame)
- ;; (defalias 'next-multiscreen-window 'next-multiframe-window)
- ;; (defalias 'previous-multiscreen-window 'previous-multiframe-window)
- ;; (defalias 'redirect-screen-focus 'redirect-frame-focus)
- (defalias 'redraw-screen 'redraw-frame)
- ;; (defalias 'screen-char-height 'frame-char-height)
- ;; (defalias 'screen-char-width 'frame-char-width)
- ;; (defalias 'screen-configuration-to-register 'frame-configuration-to-register)
- ;; (defalias 'screen-focus 'frame-focus)
- (defalias 'screen-height 'frame-height)
- (defalias 'screen-list 'frame-list)
- ;; (defalias 'screen-live-p 'frame-live-p)
- (defalias 'screen-parameters 'frame-parameters)
- (defalias 'screen-pixel-height 'frame-pixel-height)
- (defalias 'screen-pixel-width 'frame-pixel-width)
- (defalias 'screen-root-window 'frame-root-window)
- (defalias 'screen-selected-window 'frame-selected-window)
- (defalias 'lower-screen 'lower-frame)
- (defalias 'raise-screen 'raise-frame)
- (defalias 'screen-visible-p 'frame-visible-p)
- (defalias 'screen-width 'frame-width)
- (defalias 'screenp 'framep)
- (defalias 'select-screen 'select-frame)
- (defalias 'selected-screen 'selected-frame)
- ;; (defalias 'set-screen-configuration 'set-frame-configuration)
- ;; (defalias 'set-screen-height 'set-frame-height)
- (defalias 'set-screen-position 'set-frame-position)
- (defalias 'set-screen-size 'set-frame-size)
- ;; (defalias 'set-screen-width 'set-frame-width)
- (defalias 'switch-to-buffer-new-screen 'switch-to-buffer-other-frame)
- ;; (defalias 'unfocus-screen 'unfocus-frame)
- (defalias 'visible-screen-list 'visible-frame-list)
- (defalias 'window-screen 'window-frame)
- (defalias 'x-create-screen 'x-create-frame)
- (defalias 'x-new-screen 'new-frame)
-
- (provide 'lucid)
-
- ;;; end of lucid.el
-