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e7ea754563
(cl-map-keymap): Definition deleted.
238 lines
8.2 KiB
EmacsLisp
238 lines
8.2 KiB
EmacsLisp
;;; lucid.el --- emulate some Lucid Emacs functions
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;; Copyright (C) 1993, 1995, 2001 Free Software Foundation, Inc.
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;; Maintainer: FSF
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;; Keywords: emulations
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;;; Code:
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;; XEmacs autoloads CL so we might as well make use of it.
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(require 'cl)
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(defalias 'current-time-seconds 'current-time)
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(defun read-number (prompt &optional integers-only)
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"Read a number from the minibuffer.
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Keep reentering the minibuffer until we get suitable input.
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If optional argument INTEGERS-ONLY is non-nil, insist on an integer."
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(interactive)
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(let (success
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(number nil)
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(predicate (if integers-only 'integerp 'numberp)))
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(while (not success)
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(let ((input-string (read-string prompt)))
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(condition-case ()
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(setq number (read input-string))
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(error))
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(if (funcall predicate number)
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(setq success t)
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(let ((cursor-in-echo-area t))
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(message "Please type %s"
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(if integers-only "an integer" "a number"))
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(sit-for 1)))))
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number))
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(defun real-path-name (name &optional default)
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(file-truename (expand-file-name name default)))
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;; It's not clear what to return if the mouse is not in FRAME.
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(defun read-mouse-position (frame)
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(let ((pos (mouse-position)))
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(if (eq (car pos) frame)
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(cdr pos))))
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(defun switch-to-other-buffer (arg)
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"Switch to the previous buffer.
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With a numeric arg N, switch to the Nth most recent buffer.
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With an arg of 0, buries the current buffer at the
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bottom of the buffer stack."
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(interactive "p")
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(if (eq arg 0)
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(bury-buffer (current-buffer)))
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(switch-to-buffer
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(if (<= arg 1) (other-buffer (current-buffer))
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(nth arg
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(apply 'nconc
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(mapcar
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(lambda (buf)
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(if (= ?\ (string-to-char (buffer-name buf)))
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nil
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(list buf)))
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(buffer-list)))))))
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(defun device-class (&optional device)
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"Return the class (color behavior) of DEVICE.
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This will be one of 'color, 'grayscale, or 'mono.
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This function exists for compatibility with XEmacs."
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(cond
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((display-color-p device) 'color)
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((display-grayscale-p device) 'grayscale)
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(t 'mono)))
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(defalias 'find-face 'internal-find-face)
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(defalias 'get-face 'internal-get-face)
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(defalias 'try-face-font 'internal-try-face-font)
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(defalias 'exec-to-string 'shell-command-to-string)
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;; Buffer context
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(defun buffer-syntactic-context (&optional buffer)
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"Syntactic context at point in BUFFER.
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Either of `string', `comment' or nil.
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This is an XEmacs compatibility function."
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(with-current-buffer (or buffer (current-buffer))
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(let ((state (syntax-ppss (point))))
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(cond
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((nth 3 state) 'string)
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((nth 4 state) 'comment)))))
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(defun buffer-syntactic-context-depth (&optional buffer)
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"Syntactic parenthesis depth at point in BUFFER.
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This is an XEmacs compatibility function."
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(with-current-buffer (or buffer (current-buffer))
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(nth 0 (syntax-ppss (point)))))
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;; Extents
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(defun make-extent (beg end &optional buffer)
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(make-overlay beg end buffer))
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(defun extent-properties (extent) (overlay-properties extent))
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(unless (fboundp 'extent-property) (defalias 'extent-property 'overlay-get))
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(defun extent-at (pos &optional object property before)
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(with-current-buffer (or object (current-buffer))
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(let ((overlays (overlays-at pos)))
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(when property
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(let (filtered)
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(while overlays
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(if (overlay-get (car overlays) property)
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(setq filtered (cons (car overlays) filtered)))
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(setq overlays (cdr overlays)))
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(setq overlays filtered)))
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(setq overlays
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(sort overlays
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(function (lambda (o1 o2)
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(let ((p1 (or (overlay-get o1 'priority) 0))
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(p2 (or (overlay-get o2 'priority) 0)))
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(or (> p1 p2)
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(and (= p1 p2)
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(> (overlay-start o1) (overlay-start o2)))))))))
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(if before
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(nth 1 (memq before overlays))
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(car overlays)))))
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(defun set-extent-property (extent prop value)
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;; Make sure that separate adjacent extents
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;; with the same mouse-face value
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;; do not run together as one extent.
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(and (eq prop 'mouse-face)
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(symbolp value)
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(setq value (list value)))
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(if (eq prop 'duplicable)
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(cond ((and value (not (overlay-get extent prop)))
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;; If becoming duplicable, copy all overlayprops to text props.
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(add-text-properties (overlay-start extent)
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(overlay-end extent)
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(overlay-properties extent)
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(overlay-buffer extent)))
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;; If becoming no longer duplicable, remove these text props.
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((and (not value) (overlay-get extent prop))
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(remove-text-properties (overlay-start extent)
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(overlay-end extent)
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(overlay-properties extent)
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(overlay-buffer extent))))
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;; If extent is already duplicable, put this property
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;; on the text as well as on the overlay.
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(if (overlay-get extent 'duplicable)
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(put-text-property (overlay-start extent)
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(overlay-end extent)
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prop value (overlay-buffer extent))))
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(overlay-put extent prop value))
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(defun set-extent-face (extent face)
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(set-extent-property extent 'face face))
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(defun set-extent-end-glyph (extent glyph)
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(set-extent-property extent 'after-string glyph))
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(defun delete-extent (extent)
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(set-extent-property extent 'duplicable nil)
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(delete-overlay extent))
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;; Support the Lucid names with `screen' instead of `frame'.
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(defalias 'current-screen-configuration 'current-frame-configuration)
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(defalias 'delete-screen 'delete-frame)
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(defalias 'find-file-new-screen 'find-file-other-frame)
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(defalias 'find-file-read-only-new-screen 'find-file-read-only-other-frame)
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(defalias 'find-tag-new-screen 'find-tag-other-frame)
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;;(defalias 'focus-screen 'focus-frame)
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(defalias 'iconify-screen 'iconify-frame)
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(defalias 'mail-new-screen 'mail-other-frame)
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(defalias 'make-screen-invisible 'make-frame-invisible)
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(defalias 'make-screen-visible 'make-frame-visible)
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;; (defalias 'minibuffer-screen-list 'minibuffer-frame-list)
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(defalias 'modify-screen-parameters 'modify-frame-parameters)
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(defalias 'next-screen 'next-frame)
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;; (defalias 'next-multiscreen-window 'next-multiframe-window)
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;; (defalias 'previous-multiscreen-window 'previous-multiframe-window)
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;; (defalias 'redirect-screen-focus 'redirect-frame-focus)
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(defalias 'redraw-screen 'redraw-frame)
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;; (defalias 'screen-char-height 'frame-char-height)
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;; (defalias 'screen-char-width 'frame-char-width)
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;; (defalias 'screen-configuration-to-register 'frame-configuration-to-register)
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;; (defalias 'screen-focus 'frame-focus)
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(defalias 'screen-list 'frame-list)
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;; (defalias 'screen-live-p 'frame-live-p)
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(defalias 'screen-parameters 'frame-parameters)
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(defalias 'screen-pixel-height 'frame-pixel-height)
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(defalias 'screen-pixel-width 'frame-pixel-width)
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(defalias 'screen-root-window 'frame-root-window)
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(defalias 'screen-selected-window 'frame-selected-window)
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(defalias 'lower-screen 'lower-frame)
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(defalias 'raise-screen 'raise-frame)
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(defalias 'screen-visible-p 'frame-visible-p)
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(defalias 'screenp 'framep)
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(defalias 'select-screen 'select-frame)
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(defalias 'selected-screen 'selected-frame)
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;; (defalias 'set-screen-configuration 'set-frame-configuration)
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;; (defalias 'set-screen-height 'set-frame-height)
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(defalias 'set-screen-position 'set-frame-position)
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(defalias 'set-screen-size 'set-frame-size)
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;; (defalias 'set-screen-width 'set-frame-width)
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(defalias 'switch-to-buffer-new-screen 'switch-to-buffer-other-frame)
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;; (defalias 'unfocus-screen 'unfocus-frame)
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(defalias 'visible-screen-list 'visible-frame-list)
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(defalias 'window-screen 'window-frame)
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(defalias 'x-create-screen 'x-create-frame)
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(defalias 'x-new-screen 'make-frame)
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(provide 'lucid)
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;;; arch-tag: 80f9ab46-0b36-4151-86ed-3edb6d449c9e
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;;; lucid.el ends here
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