mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-29 07:58:28 +00:00
5e2dfaa48e
(copy-tree, remprop): Remove, it's provided by CL. (map-keymap): Define in terms of cl-map-keymap. (extent-property, set-extent-end-glyph): New functions.
228 lines
8.1 KiB
EmacsLisp
228 lines
8.1 KiB
EmacsLisp
;;; lucid.el --- Emulate some Lucid Emacs functions.
|
||
|
||
;; Copyright (C) 1993, 1995 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, Inc., 59 Temple Place - Suite 330,
|
||
;; Boston, MA 02111-1307, USA.
|
||
|
||
;;; Code:
|
||
|
||
;; XEmacs autoloads CL so we might as well make use of it.
|
||
(require 'cl)
|
||
|
||
(defalias 'current-time-seconds 'current-time)
|
||
|
||
(defun map-keymap (function keymap &optional sort-first)
|
||
"Call FUNCTION for every binding in KEYMAP.
|
||
This does not include 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)
|
||
(cl-map-keymap (lambda (a b) (push (cons a b) list))
|
||
keymap)
|
||
(setq list (sort list
|
||
(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))))))
|
||
(dolist (p list)
|
||
(funcall function (car p) (cdr p))))
|
||
(cl-map-keymap function keymap)))
|
||
|
||
(defun read-number (prompt &optional integers-only)
|
||
"Read a number from the minibuffer.
|
||
Keep reentering the minibuffer until we get suitable input.
|
||
If optional argument INTEGERS-ONLY is non-nil, insist on an integer."
|
||
(interactive)
|
||
(let (success
|
||
(number nil)
|
||
(predicate (if integers-only 'integerp 'numberp)))
|
||
(while (not success)
|
||
(let ((input-string (read-string prompt)))
|
||
(condition-case ()
|
||
(setq number (read input-string))
|
||
(error))
|
||
(if (funcall predicate number)
|
||
(setq success t)
|
||
(let ((cursor-in-echo-area t))
|
||
(message "Please type %s"
|
||
(if integers-only "an integer" "a number"))
|
||
(sit-for 1)))))
|
||
number))
|
||
|
||
(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 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)
|
||
|
||
(defalias 'exec-to-string 'shell-command-to-string)
|
||
|
||
(defun make-extent (beg end &optional buffer)
|
||
(make-overlay beg end buffer))
|
||
|
||
(defun extent-properties (extent) (overlay-properties extent))
|
||
(unless (fboundp 'extent-property) (defalias 'extent-property 'overlay-get))
|
||
|
||
(defun extent-at (pos &optional object property before)
|
||
(with-current-buffer (or object (current-buffer))
|
||
(let ((overlays (overlays-at pos)))
|
||
(when property
|
||
(let (filtered)
|
||
(while overlays
|
||
(if (overlay-get (car overlays) property)
|
||
(setq filtered (cons (car overlays) filtered)))
|
||
(setq overlays (cdr overlays)))
|
||
(setq overlays filtered)))
|
||
(setq overlays
|
||
(sort overlays
|
||
(function (lambda (o1 o2)
|
||
(let ((p1 (or (overlay-get o1 'priority) 0))
|
||
(p2 (or (overlay-get o2 'priority) 0)))
|
||
(or (> p1 p2)
|
||
(and (= p1 p2)
|
||
(> (overlay-start o1) (overlay-start o2)))))))))
|
||
(if before
|
||
(nth 1 (memq before overlays))
|
||
(car overlays)))))
|
||
|
||
(defun set-extent-property (extent prop value)
|
||
;; Make sure that separate adjacent extents
|
||
;; with the same mouse-face value
|
||
;; do not run together as one extent.
|
||
(and (eq prop 'mouse-face)
|
||
(symbolp value)
|
||
(setq value (list value)))
|
||
(if (eq prop 'duplicable)
|
||
(cond ((and value (not (overlay-get extent prop)))
|
||
;; If becoming duplicable, copy all overlayprops to text props.
|
||
(add-text-properties (overlay-start extent)
|
||
(overlay-end extent)
|
||
(overlay-properties extent)
|
||
(overlay-buffer extent)))
|
||
;; If becoming no longer duplicable, remove these text props.
|
||
((and (not value) (overlay-get extent prop))
|
||
(remove-text-properties (overlay-start extent)
|
||
(overlay-end extent)
|
||
(overlay-properties extent)
|
||
(overlay-buffer extent))))
|
||
;; If extent is already duplicable, put this property
|
||
;; on the text as well as on the overlay.
|
||
(if (overlay-get extent 'duplicable)
|
||
(put-text-property (overlay-start extent)
|
||
(overlay-end extent)
|
||
prop value (overlay-buffer extent))))
|
||
(overlay-put extent prop value))
|
||
|
||
(defun set-extent-face (extent face)
|
||
(set-extent-property extent 'face face))
|
||
|
||
(defun set-extent-end-glyph (extent glyph)
|
||
(set-extent-property extent 'after-string glyph))
|
||
|
||
(defun delete-extent (extent)
|
||
(set-extent-property extent 'duplicable nil)
|
||
(delete-overlay extent))
|
||
|
||
;; 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-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 '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 'make-frame)
|
||
|
||
(provide 'lucid)
|
||
|
||
;;; end of lucid.el
|