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1058 lines
38 KiB
EmacsLisp
1058 lines
38 KiB
EmacsLisp
;;; viper-init.el --- some common definitions for Viper
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;; Copyright (C) 1997 Free Software Foundation, Inc.
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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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;; Code
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(provide 'viper-init)
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;; compiler pacifier
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(defvar mark-even-if-inactive)
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(defvar quail-mode)
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(defvar iso-accents-mode)
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(defvar viper-current-state)
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(defvar viper-version)
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(defvar viper-expert-level)
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;; end pacifier
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;; Viper version
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(defun viper-version ()
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(interactive)
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(message "Viper version is %s" viper-version))
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;; Is it XEmacs?
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(defconst viper-xemacs-p (string-match "XEmacs" emacs-version))
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;; Is it Emacs?
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(defconst viper-emacs-p (not viper-xemacs-p))
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;; Tell whether we are running as a window application or on a TTY
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(defsubst viper-device-type ()
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(if viper-emacs-p
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window-system
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(device-type (selected-device))))
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;; in XEmacs: device-type is tty on tty and stream in batch.
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(defun viper-window-display-p ()
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(and (viper-device-type) (not (memq (viper-device-type) '(tty stream pc)))))
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(defcustom viper-ms-style-os-p (memq system-type
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'(ms-dos windows-nt windows-95))
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"Tells if Emacs is running under an MS-style OS: ms-dos, windows-nt, W95."
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:type 'boolean
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:tag "Is it Microsoft-made OS?"
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:group 'viper-misc)
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(defcustom viper-vms-os-p (memq system-type '(vax-vms axp-vms))
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"Tells if Emacs is running under VMS."
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:type 'boolean
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:tag "Is it VMS?"
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:group 'viper-misc)
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(defcustom viper-force-faces nil
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"If t, Viper will think that it is running on a display that supports faces.
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This is provided as a temporary relief for users of graphics-capable terminals
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that Viper doesn't know about.
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In all likelihood, you don't need to bother with this setting."
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:type 'boolean
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:group 'viper-highlighting)
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(defun viper-has-face-support-p ()
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(cond ((viper-window-display-p))
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(viper-force-faces)
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(viper-emacs-p (memq (viper-device-type) '(pc)))
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(viper-xemacs-p (memq (viper-device-type) '(tty pc)))))
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;;; Macros
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(defmacro viper-deflocalvar (var default-value &optional documentation)
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(` (progn
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(defvar (, var) (, default-value)
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(, (format "%s\n\(buffer local\)" documentation)))
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(make-variable-buffer-local '(, var))
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)))
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;; (viper-loop COUNT BODY) Execute BODY COUNT times.
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(defmacro viper-loop (count &rest body)
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(` (let ((count (, count)))
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(while (> count 0)
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(progn
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(,@ body)
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(setq count (1- count))
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))
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)))
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(defmacro viper-buffer-live-p (buf)
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(` (and (, buf) (get-buffer (, buf)) (buffer-name (get-buffer (, buf))))))
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;; return buffer-specific macro definition, given a full macro definition
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(defmacro viper-kbd-buf-alist (macro-elt)
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(` (nth 1 (, macro-elt))))
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;; get a pair: (curr-buffer . macro-definition)
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(defmacro viper-kbd-buf-pair (macro-elt)
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(` (assoc (buffer-name) (viper-kbd-buf-alist (, macro-elt)))))
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;; get macro definition for current buffer
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(defmacro viper-kbd-buf-definition (macro-elt)
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(` (cdr (viper-kbd-buf-pair (, macro-elt)))))
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;; return mode-specific macro definitions, given a full macro definition
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(defmacro viper-kbd-mode-alist (macro-elt)
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(` (nth 2 (, macro-elt))))
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;; get a pair: (major-mode . macro-definition)
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(defmacro viper-kbd-mode-pair (macro-elt)
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(` (assoc major-mode (viper-kbd-mode-alist (, macro-elt)))))
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;; get macro definition for the current major mode
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(defmacro viper-kbd-mode-definition (macro-elt)
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(` (cdr (viper-kbd-mode-pair (, macro-elt)))))
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;; return global macro definition, given a full macro definition
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(defmacro viper-kbd-global-pair (macro-elt)
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(` (nth 3 (, macro-elt))))
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;; get global macro definition from an elt of macro-alist
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(defmacro viper-kbd-global-definition (macro-elt)
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(` (cdr (viper-kbd-global-pair (, macro-elt)))))
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;; last elt of a sequence
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(defsubst viper-seq-last-elt (seq)
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(elt seq (1- (length seq))))
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(defsubst viper-string-to-list (string)
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(append (vconcat string) nil))
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(defsubst viper-charlist-to-string (list)
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(mapconcat 'char-to-string list ""))
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;; like char-after/before, but saves typing
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(defun viper-char-at-pos (direction &optional offset)
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(or (integerp offset) (setq offset 0))
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(if (eq direction 'forward)
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(char-after (+ (point) offset))
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(char-before (- (point) offset))))
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(defvar viper-minibuffer-overlay-priority 300)
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(defvar viper-replace-overlay-priority 400)
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(defvar viper-search-overlay-priority 500)
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;;; Viper minor modes
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;; Mode for vital things like \e, C-z.
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(viper-deflocalvar viper-vi-intercept-minor-mode nil)
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(viper-deflocalvar viper-vi-basic-minor-mode nil
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"Viper's minor mode for Vi bindings.")
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(viper-deflocalvar viper-vi-local-user-minor-mode nil
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"Auxiliary minor mode for user-defined local bindings in Vi state.")
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(viper-deflocalvar viper-vi-global-user-minor-mode nil
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"Auxiliary minor mode for user-defined global bindings in Vi state.")
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(viper-deflocalvar viper-vi-state-modifier-minor-mode nil
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"Minor mode used to make major-mode-specific modification to Vi state.")
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(viper-deflocalvar viper-vi-diehard-minor-mode nil
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"This minor mode is in effect when the user wants Viper to be Vi.")
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(viper-deflocalvar viper-vi-kbd-minor-mode nil
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"Minor mode for Ex command macros in Vi state.
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The corresponding keymap stores key bindings of Vi macros defined with
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the Ex command :map.")
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;; Mode for vital things like \e, C-z.
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(viper-deflocalvar viper-insert-intercept-minor-mode nil)
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(viper-deflocalvar viper-insert-basic-minor-mode nil
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"Viper's minor mode for bindings in Insert mode.")
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(viper-deflocalvar viper-insert-local-user-minor-mode nil
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"Auxiliary minor mode for buffer-local user-defined bindings in Insert state.
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This is a way to overshadow normal Insert mode bindings locally to certain
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designated buffers.")
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(viper-deflocalvar viper-insert-global-user-minor-mode nil
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"Auxiliary minor mode for global user-defined bindings in Insert state.")
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(viper-deflocalvar viper-insert-state-modifier-minor-mode nil
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"Minor mode used to make major-mode-specific modification to Insert state.")
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(viper-deflocalvar viper-insert-diehard-minor-mode nil
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"Minor mode that simulates Vi very closely.
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Not recommened, except for the novice user.")
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(viper-deflocalvar viper-insert-kbd-minor-mode nil
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"Minor mode for Ex command macros Insert state.
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The corresponding keymap stores key bindings of Vi macros defined with
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the Ex command :map!.")
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(viper-deflocalvar viper-replace-minor-mode nil
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"Minor mode in effect in replace state (cw, C, and the like commands).")
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;; Mode for vital things like \C-z and \C-x) This is set to t, when viper-mode
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;; is invoked. So, any new buffer will have C-z defined as switch to Vi, unless
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;; we switched states in this buffer
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(viper-deflocalvar viper-emacs-intercept-minor-mode nil)
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(viper-deflocalvar viper-emacs-local-user-minor-mode nil
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"Minor mode for local user bindings effective in Emacs state.
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Users can use it to override Emacs bindings when Viper is in its Emacs
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state.")
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(viper-deflocalvar viper-emacs-global-user-minor-mode nil
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"Minor mode for global user bindings in effect in Emacs state.
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Users can use it to override Emacs bindings when Viper is in its Emacs
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state.")
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(viper-deflocalvar viper-emacs-kbd-minor-mode nil
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"Minor mode for Vi style macros in Emacs state.
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The corresponding keymap stores key bindings of Vi macros defined with
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`viper-record-kbd-macro' command. There is no Ex-level command to do this
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interactively.")
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(viper-deflocalvar viper-emacs-state-modifier-minor-mode nil
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"Minor mode used to make major-mode-specific modification to Emacs state.
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For instance, a Vi purist may want to bind `dd' in Dired mode to a function
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that deletes a file.")
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(viper-deflocalvar viper-vi-minibuffer-minor-mode nil
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"Minor mode that forces Vi-style when the Minibuffer is in Vi state.")
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(viper-deflocalvar viper-insert-minibuffer-minor-mode nil
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"Minor mode that forces Vi-style when the Minibuffer is in Insert state.")
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;; Some common error messages
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(defconst viper-SpuriousText "Spurious text after command" "")
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(defconst viper-BadExCommand "Not an editor command" "")
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(defconst viper-InvalidCommandArgument "Invalid command argument" "")
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(defconst viper-NoPrevSearch "No previous search string" "")
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(defconst viper-EmptyRegister "`%c': Nothing in this register" "")
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(defconst viper-InvalidRegister "`%c': Invalid register" "")
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(defconst viper-EmptyTextmarker "`%c': Text marker doesn't point anywhere" "")
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(defconst viper-InvalidTextmarker "`%c': Invalid text marker" "")
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(defconst viper-InvalidViCommand "Invalid command" "")
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(defconst viper-BadAddress "Ill-formed address" "")
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(defconst viper-FirstAddrExceedsSecond "First address exceeds second" "")
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(defconst viper-NoFileSpecified "No file specified" "")
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;; Is t until viper-mode executes for the very first time.
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;; Prevents recursive descend into startup messages.
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(defvar viper-first-time t)
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(defvar viper-expert-level (if (boundp 'viper-expert-level) viper-expert-level 0)
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"User's expert level.
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The minor mode viper-vi-diehard-minor-mode is in effect when
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viper-expert-level is 1 or 2 or when viper-want-emacs-keys-in-vi is t.
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The minor mode viper-insert-diehard-minor-mode is in effect when
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viper-expert-level is 1 or 2 or if viper-want-emacs-keys-in-insert is t.
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Use `M-x viper-set-expert-level' to change this.")
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;; Max expert level supported by Viper. This is NOT a user option.
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;; It is here to make it hard for the user from resetting it.
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(defconst viper-max-expert-level 5)
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;;; ISO characters and MULE
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;; If non-nil, ISO accents will be turned on in insert/replace emacs states and
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;; turned off in vi-state. For some users, this behavior may be too
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;; primitive. In this case, use insert/emacs/vi state hooks.
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(viper-deflocalvar viper-automatic-iso-accents nil "")
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;; Set iso-accents-mode to ARG. Check if it is bound first
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(defsubst viper-set-iso-accents-mode (arg)
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(if (boundp 'iso-accents-mode)
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(setq iso-accents-mode arg)))
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;; Internal flag used to control when viper mule hooks are run.
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;; Don't change this!
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(defvar viper-mule-hook-flag t)
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;; If non-nil, the default intl. input method is turned on.
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(viper-deflocalvar viper-special-input-method nil "")
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;; viper hook to run on input-method activation
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(defun viper-activate-input-method-action ()
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(if (null viper-mule-hook-flag)
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()
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(setq viper-special-input-method t)
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;; turn off special input methods in vi-state
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(if (eq viper-current-state 'vi-state)
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(viper-set-input-method nil))
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(if (memq viper-current-state '(vi-state insert-state replace-state))
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(message "Viper special input method%s: on"
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(if (or current-input-method default-input-method)
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(format " %S"
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(or current-input-method default-input-method))
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"")))
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))
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;; viper hook to run on input-method deactivation
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(defun viper-inactivate-input-method-action ()
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(if (null viper-mule-hook-flag)
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()
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(setq viper-special-input-method nil)
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(if (memq viper-current-state '(vi-state insert-state replace-state))
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(message "Viper special input method%s: off"
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(if (or current-input-method default-input-method)
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(format " %S"
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(or current-input-method default-input-method))
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"")))))
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(defun viper-inactivate-input-method ()
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(cond ((and viper-emacs-p (fboundp 'inactivate-input-method))
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(inactivate-input-method))
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((and viper-xemacs-p (boundp 'current-input-method))
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;; XEmacs had broken quil-mode for some time, so we are working around
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;; it here
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(setq quail-mode nil)
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(if (featurep 'quail)
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(quail-delete-overlays))
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(setq describe-current-input-method-function nil)
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(setq current-input-method nil)
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(run-hooks 'input-method-inactivate-hook)
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(force-mode-line-update))
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))
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(defun viper-activate-input-method ()
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(cond ((and viper-emacs-p (fboundp 'activate-input-method))
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(activate-input-method default-input-method))
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((and viper-xemacs-p (fboundp 'quail-mode))
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(quail-mode 1))))
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;; Set quail-mode to ARG
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(defun viper-set-input-method (arg)
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(setq viper-mule-hook-flag t) ; just a precaution
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(let (viper-mule-hook-flag) ; temporarily inactivate viper mule hooks
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(cond ((and arg (> (prefix-numeric-value arg) 0) default-input-method)
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;; activate input method
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(viper-activate-input-method))
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(t ; deactivate input method
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(viper-inactivate-input-method)))
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))
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;; VI-style Undo
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;; Used to 'undo' complex commands, such as replace and insert commands.
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(viper-deflocalvar viper-undo-needs-adjustment nil)
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(put 'viper-undo-needs-adjustment 'permanent-local t)
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;; A mark that Viper puts on buffer-undo-list. Marks the beginning of a
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;; complex command that must be undone atomically. If inserted, it is
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;; erased by viper-change-state-to-vi and viper-repeat.
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(defconst viper-buffer-undo-list-mark 'viper)
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(defcustom viper-keep-point-on-undo nil
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"*Non-nil means not to move point while undoing commands.
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This style is different from Emacs and Vi. Try it to see if
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it better fits your working style."
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:type 'boolean
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:tag "Preserve Position of Point After Undo"
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:group 'viper)
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;; Replace mode and changing text
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;; Viper's own after/before change functions, which get viper-add-hook'ed to
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;; Emacs's
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(viper-deflocalvar viper-after-change-functions nil "")
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(viper-deflocalvar viper-before-change-functions nil "")
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(viper-deflocalvar viper-post-command-hooks nil "")
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(viper-deflocalvar viper-pre-command-hooks nil "")
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;; Can be used to pass global states around for short period of time
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(viper-deflocalvar viper-intermediate-command nil "")
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;; This is used to pass the right Vi command key sequence to
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;; viper-set-destructive-command whenever (this-command-keys) doesn't give the
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;; right result. For instance, in commands like c/bla<RET>, (this-command-keys)
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;; will return ^M, which invoked exit-minibuffer, while we need "c/"
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(defconst viper-this-command-keys nil)
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;; Indicates that the current destructive command has started in replace mode.
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(viper-deflocalvar viper-began-as-replace nil "")
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(defcustom viper-allow-multiline-replace-regions t
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"If non-nil, Viper will allow multi-line replace regions.
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This is an extension to standard Vi.
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If nil, commands that attempt to replace text spanning multiple lines first
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delete the text being replaced, as in standard Vi."
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:type 'boolean
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:group 'viper)
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(defcustom viper-replace-overlay-cursor-color "Red"
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"*Cursor color when Viper is in Replace state."
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:type 'string
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:group 'viper)
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(defcustom viper-insert-state-cursor-color "Green"
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"Cursor color when Viper is in insert state."
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:type 'string
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:group 'viper)
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;; place to save cursor colow when switching to insert mode
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(viper-deflocalvar viper-saved-cursor-color nil "")
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(viper-deflocalvar viper-replace-overlay nil "")
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(put 'viper-replace-overlay 'permanent-local t)
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(defcustom viper-replace-region-end-delimiter "$"
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"A string marking the end of replacement regions.
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It is used only with TTYs or if `viper-use-replace-region-delimiters'
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is non-nil."
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:type 'string
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:group 'viper)
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(defcustom viper-replace-region-start-delimiter ""
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"A string marking the beginning of replacement regions.
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It is used only with TTYs or if `viper-use-replace-region-delimiters'
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is non-nil."
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:type 'string
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:group 'viper)
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(defcustom viper-use-replace-region-delimiters
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(or (not (viper-has-face-support-p))
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(and viper-xemacs-p (eq (viper-device-type) 'tty)))
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"*If non-nil, Viper will always use `viper-replace-region-end-delimiter' and
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`viper-replace-region-start-delimiter' to delimit replacement regions, even on
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color displays. By default, the delimiters are used only on TTYs."
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:type 'boolean
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:group 'viper)
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;; XEmacs requires glyphs
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(if viper-xemacs-p
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(progn
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(or (glyphp viper-replace-region-end-delimiter)
|
||
(setq viper-replace-region-end-delimiter
|
||
(make-glyph viper-replace-region-end-delimiter)))
|
||
(or (glyphp viper-replace-region-start-delimiter)
|
||
(setq viper-replace-region-start-delimiter
|
||
(make-glyph viper-replace-region-start-delimiter)))
|
||
))
|
||
|
||
|
||
;; These are local marker that must be initialized to nil and moved with
|
||
;; `viper-move-marker-locally'
|
||
;;
|
||
;; Remember the last position inside the replace region.
|
||
(viper-deflocalvar viper-last-posn-in-replace-region nil)
|
||
;; Remember the last position while inserting
|
||
(viper-deflocalvar viper-last-posn-while-in-insert-state nil)
|
||
(put 'viper-last-posn-in-replace-region 'permanent-local t)
|
||
(put 'viper-last-posn-while-in-insert-state 'permanent-local t)
|
||
|
||
(viper-deflocalvar viper-sitting-in-replace nil "")
|
||
(put 'viper-sitting-in-replace 'permanent-local t)
|
||
|
||
;; Remember the number of characters that have to be deleted in replace
|
||
;; mode to compensate for the inserted characters.
|
||
(viper-deflocalvar viper-replace-chars-to-delete 0 "")
|
||
;; This variable is used internally by the before/after changed functions to
|
||
;; determine how many chars were deleted by the change. This can't be
|
||
;; determined inside after-change-functions because those get the length of the
|
||
;; deleted region, not the number of chars deleted (which are two different
|
||
;; things under MULE).
|
||
(viper-deflocalvar viper-replace-region-chars-deleted 0 "")
|
||
|
||
;; Insertion ring and command ring
|
||
(defcustom viper-insertion-ring-size 14
|
||
"The size of history of inserted text.
|
||
This is a list where Viper keeps the history of previously inserted pieces of
|
||
text."
|
||
:type 'integer
|
||
:group 'viper-misc)
|
||
;; The insertion ring.
|
||
(defvar viper-insertion-ring nil)
|
||
;; This is temp insertion ring. Used to do rotation for display purposes.
|
||
;; When rotation just started, it is initialized to viper-insertion-ring.
|
||
(defvar viper-temp-insertion-ring nil)
|
||
(defvar viper-last-inserted-string-from-insertion-ring "")
|
||
|
||
(defcustom viper-command-ring-size 14
|
||
"The size of history of Vi commands repeatable with dot."
|
||
:type 'integer
|
||
:group 'viper-misc)
|
||
;; The command ring.
|
||
(defvar viper-command-ring nil)
|
||
;; This is temp command ring. Used to do rotation for display purposes.
|
||
;; When rotation just started, it is initialized to viper-command-ring.
|
||
(defvar viper-temp-command-ring nil)
|
||
|
||
;; Fast keyseq and ESC keyseq timeouts
|
||
(defcustom viper-fast-keyseq-timeout 200
|
||
"*Key sequence separated by no more than this many milliseconds is viewed as a Vi-style macro, if such a macro is defined.
|
||
Setting this too high may slow down your typing. Setting this value too low
|
||
will make it hard to use Vi-stile timeout macros."
|
||
:type 'integer
|
||
:group 'viper-misc)
|
||
|
||
(defcustom viper-ESC-keyseq-timeout (if (viper-window-display-p)
|
||
0 viper-fast-keyseq-timeout)
|
||
"*Key sequence beginning with ESC and separated by no more than this many milliseconds is considered to be generated by a keyboard function key.
|
||
Setting this too high may slow down switching from insert to vi state. Setting
|
||
this value too low will make it impossible to use function keys in insert mode
|
||
on a dumb terminal."
|
||
:type 'integer
|
||
:group 'viper-misc)
|
||
|
||
;; Modes and related variables
|
||
|
||
;; Current mode. One of: `emacs-state', `vi-state', `insert-state'
|
||
(viper-deflocalvar viper-current-state 'emacs-state)
|
||
|
||
|
||
;; Autoindent in insert
|
||
|
||
;; Variable that keeps track of whether C-t has been pressed.
|
||
(viper-deflocalvar viper-cted nil "")
|
||
|
||
;; Preserve the indent value, used by C-d in insert mode.
|
||
(viper-deflocalvar viper-current-indent 0)
|
||
|
||
;; Whether to preserve the indent, used by C-d in insert mode.
|
||
(viper-deflocalvar viper-preserve-indent nil)
|
||
|
||
(viper-deflocalvar viper-auto-indent nil "")
|
||
(defcustom viper-auto-indent nil
|
||
"*Enable autoindent, if t.
|
||
This is a buffer-local variable."
|
||
:type 'boolean
|
||
:group 'viper)
|
||
|
||
(viper-deflocalvar viper-electric-mode t "")
|
||
(defcustom viper-electric-mode t
|
||
"*If t, electrify Viper.
|
||
Currently, this only electrifies auto-indentation, making it appropriate to the
|
||
mode of the buffer.
|
||
This means that auto-indentation will depart from standard Vi and will indent
|
||
appropriate to the mode of the buffer. This is especially useful for editing
|
||
programs and LaTeX documents."
|
||
:type 'boolean
|
||
:group 'viper)
|
||
|
||
(defcustom viper-shift-width 8
|
||
"*The shiftwidth variable."
|
||
:type 'integer
|
||
:group 'viper)
|
||
|
||
;; Variables for repeating destructive commands
|
||
|
||
(defcustom viper-keep-point-on-repeat t
|
||
"*If t, don't move point when repeating previous command.
|
||
This is useful for doing repeated changes with the '.' key.
|
||
The user can change this to nil, if she likes when the cursor moves
|
||
to a new place after repeating previous Vi command."
|
||
:type 'boolean
|
||
:group 'viper)
|
||
|
||
;; Remember insert point as a marker. This is a local marker that must be
|
||
;; initialized to nil and moved with `viper-move-marker-locally'.
|
||
(viper-deflocalvar viper-insert-point nil)
|
||
(put 'viper-insert-point 'permanent-local t)
|
||
|
||
;; This remembers the point before dabbrev-expand was called.
|
||
;; If viper-insert-point turns out to be bigger than that, it is reset
|
||
;; back to viper-pre-command-point.
|
||
;; The reason this is needed is because dabbrev-expand (and possibly
|
||
;; others) may jump to before the insertion point, delete something and
|
||
;; then reinsert a bigger piece. For instance: bla^blo
|
||
;; If dabbrev-expand is called after `blo' and ^ undicates viper-insert-point,
|
||
;; then point jumps to the beginning of `blo'. If expansion is found, `blablo'
|
||
;; is deleted, and we have |^, where | denotes point. Next, dabbrev-expand
|
||
;; will insert the expansion, and we get: blablo^
|
||
;; Whatever we insert next goes before the ^, i.e., before the
|
||
;; viper-insert-point marker. So, Viper will think that nothing was
|
||
;; inserted. Remembering the orig position of the marker circumvents the
|
||
;; problem.
|
||
;; We don't know of any command, except dabbrev-expand, that has the same
|
||
;; problem. However, the same trick can be used if such a command is
|
||
;; discovered later.
|
||
;;
|
||
(viper-deflocalvar viper-pre-command-point nil)
|
||
(put 'viper-pre-command-point 'permanent-local t) ; this is probably an overkill
|
||
|
||
;; This is used for saving inserted text.
|
||
(defvar viper-last-insertion nil)
|
||
|
||
;; Remembers the last replaced region.
|
||
(defvar viper-last-replace-region "")
|
||
|
||
;; Remember com point as a marker.
|
||
;; This is a local marker. Should be moved with `viper-move-marker-locally'
|
||
(viper-deflocalvar viper-com-point nil)
|
||
|
||
;; If non-nil, the value is a list (M-COM VAL COM REG inserted-text cmd-keys)
|
||
;; It is used to re-execute last destructive command.
|
||
;; M-COM is a Lisp symbol representing the function to be executed.
|
||
;; VAL is the prefix argument that was used with that command.
|
||
;; COM is an internal descriptor, such as ?r, ?c, ?C, which contains
|
||
;; additional information on how the function in M-COM is to be handled.
|
||
;; REG is the register used by command
|
||
;; INSERTED-TEXT is text inserted by that command (in case of o, c, C, i, r
|
||
;; commands).
|
||
;; COMMAND-KEYS are the keys that were typed to invoke the command.
|
||
(defvar viper-d-com nil)
|
||
|
||
;; The character remembered by the Vi `r' command.
|
||
(defvar viper-d-char nil)
|
||
|
||
;; Name of register to store deleted or yanked strings
|
||
(defvar viper-use-register nil)
|
||
|
||
|
||
;;; Variables for Moves and Searches
|
||
|
||
(defgroup viper-search nil
|
||
"Variables that define the search and query-replace behavior of Viper."
|
||
:prefix "viper-"
|
||
:group 'viper)
|
||
|
||
;; For use by `;' command.
|
||
(defvar viper-f-char nil)
|
||
|
||
;; For use by `.' command.
|
||
(defvar viper-F-char nil)
|
||
|
||
;; For use by `;' command.
|
||
(defvar viper-f-forward nil)
|
||
|
||
;; For use by `;' command.
|
||
(defvar viper-f-offset nil)
|
||
|
||
;; Last search string
|
||
(defvar viper-s-string "")
|
||
|
||
(defcustom viper-quote-string "> "
|
||
"String inserted at the beginning of quoted region."
|
||
:type 'string
|
||
:group 'viper)
|
||
|
||
;; If t, search is forward.
|
||
(defvar viper-s-forward nil)
|
||
|
||
(defcustom viper-case-fold-search nil
|
||
"*If not nil, search ignores cases."
|
||
:type 'boolean
|
||
:group 'viper-search)
|
||
|
||
(defcustom viper-re-search t
|
||
"*If not nil, search is regexp search, otherwise vanilla search."
|
||
:type 'boolean
|
||
:tag "Regexp Search"
|
||
:group 'viper-search)
|
||
|
||
(defcustom viper-search-scroll-threshold 2
|
||
"*If search lands within this threshnold from the window top/bottom,
|
||
the window will be scrolled up or down appropriately, to reveal context.
|
||
If you want Viper search to behave as usual in Vi, set this variable to a
|
||
negative number."
|
||
:type 'boolean
|
||
:group 'viper-search)
|
||
|
||
(defcustom viper-re-query-replace t
|
||
"*If t then do regexp replace, if nil then do string replace."
|
||
:type 'boolean
|
||
:tag "Regexp Query Replace"
|
||
:group 'viper-search)
|
||
|
||
(defcustom viper-re-replace t
|
||
"*If t, do regexp replace. nil means do string replace."
|
||
:type 'boolean
|
||
:tag "Regexp Replace"
|
||
:group 'viper-search)
|
||
|
||
(defcustom viper-parse-sexp-ignore-comments t
|
||
"*If t, `%' ignores the parentheses that occur inside comments."
|
||
:type 'boolean
|
||
:group 'viper)
|
||
|
||
(viper-deflocalvar viper-ex-style-motion t "")
|
||
(defcustom viper-ex-style-motion t
|
||
"*If t, the commands l,h do not cross lines, etc (Ex-style).
|
||
If nil, these commands cross line boundaries."
|
||
:type 'boolean
|
||
:group 'viper)
|
||
|
||
(viper-deflocalvar viper-ex-style-editing t "")
|
||
(defcustom viper-ex-style-editing t
|
||
"*If t, Ex-style behavior while editing in Vi command and insert states.
|
||
`Backspace' and `Delete' don't cross line boundaries in insert.
|
||
`X' and `x' can't delete characters across line boundary in Vi, etc.
|
||
Note: this doesn't preclude `Backspace' and `Delete' from deleting characters
|
||
by moving past the insertion point. This is a feature, not a bug.
|
||
|
||
If nil, the above commands can work across lines."
|
||
:type 'boolean
|
||
:group 'viper)
|
||
|
||
(viper-deflocalvar viper-ESC-moves-cursor-back viper-ex-style-editing "")
|
||
(defcustom viper-ESC-moves-cursor-back nil
|
||
"*If t, ESC moves cursor back when changing from insert to vi state.
|
||
If nil, the cursor stays where it was when ESC was hit."
|
||
:type 'boolean
|
||
:group 'viper)
|
||
|
||
(viper-deflocalvar viper-delete-backwards-in-replace nil "")
|
||
(defcustom viper-delete-backwards-in-replace nil
|
||
"*If t, DEL key will delete characters while moving the cursor backwards.
|
||
If nil, the cursor will move backwards without deleting anything."
|
||
:type 'boolean
|
||
:group 'viper)
|
||
|
||
(defcustom viper-buffer-search-char nil
|
||
"*Key used for buffer-searching. Must be a character type, e.g., ?g."
|
||
:type '(choice (const nil) character)
|
||
:group 'viper-search)
|
||
|
||
(defcustom viper-search-wrap-around-t t
|
||
"*If t, search wraps around."
|
||
:type 'boolean
|
||
:tag "Search Wraps Around"
|
||
:group 'viper-search)
|
||
|
||
(viper-deflocalvar viper-related-files-and-buffers-ring nil "")
|
||
(defcustom viper-related-files-and-buffers-ring nil
|
||
"*List of file and buffer names that are considered to be related to the current buffer.
|
||
Related buffers can be cycled through via :R and :P commands."
|
||
:type 'boolean
|
||
:group 'viper-misc)
|
||
(put 'viper-related-files-and-buffers-ring 'permanent-local t)
|
||
|
||
;; Used to find out if we are done with searching the current buffer.
|
||
(viper-deflocalvar viper-local-search-start-marker nil)
|
||
;; As above, but global
|
||
(defvar viper-search-start-marker (make-marker))
|
||
|
||
;; the search overlay
|
||
(viper-deflocalvar viper-search-overlay nil)
|
||
|
||
|
||
(defvar viper-heading-start
|
||
(concat "^\\s-*(\\s-*defun\\s-\\|" ; lisp
|
||
"^{\\s-*$\\|^[_a-zA-Z][^()]*[()].*{\\s-*$\\|" ; C/C++
|
||
"^\\s-*class.*{\\|^\\s-*struct.*{\\|^\\s-*enum.*{\\|"
|
||
"^\\\\[sb][a-z]*{.*}\\s-*$\\|" ; latex
|
||
"^@node\\|@table\\|^@m?enu\\|^@itemize\\|^@if\\|" ; texinfo
|
||
"^.+:-") ; prolog
|
||
"*Regexps for Headings. Used by \[\[ and \]\].")
|
||
|
||
(defvar viper-heading-end
|
||
(concat "^}\\|" ; C/C++
|
||
"^\\\\end{\\|" ; latex
|
||
"^@end \\|" ; texinfo
|
||
")\n\n[ \t\n]*\\|" ; lisp
|
||
"\\.\\s-*$") ; prolog
|
||
"*Regexps to end Headings/Sections. Used by \[\].")
|
||
|
||
|
||
;; These two vars control the interaction of jumps performed by ' and `.
|
||
;; In this new version, '' doesn't erase the marks set by ``, so one can
|
||
;; use both kinds of jumps interchangeably and without loosing positions
|
||
;; inside the lines.
|
||
|
||
;; Remembers position of the last jump done using ``'.
|
||
(viper-deflocalvar viper-last-jump nil)
|
||
;; Remembers position of the last jump done using `''.
|
||
(viper-deflocalvar viper-last-jump-ignore 0)
|
||
|
||
;; History variables
|
||
|
||
;; History of search strings.
|
||
(defvar viper-search-history (list ""))
|
||
;; History of query-replace strings used as a source.
|
||
(defvar viper-replace1-history nil)
|
||
;; History of query-replace strings used as replacement.
|
||
(defvar viper-replace2-history nil)
|
||
;; History of region quoting strings.
|
||
(defvar viper-quote-region-history (list viper-quote-string))
|
||
;; History of Ex-style commands.
|
||
(defvar viper-ex-history nil)
|
||
;; History of shell commands.
|
||
(defvar viper-shell-history nil)
|
||
|
||
|
||
;; Last shell command. There are two of these, one for Ex (in viper-ex)
|
||
;; and one for Vi.
|
||
|
||
;; Last shell command executed with ! command.
|
||
(defvar viper-last-shell-com nil)
|
||
|
||
|
||
;;; Face-saving tricks
|
||
|
||
;;(defcustom viper-replace-overlay-pixmap "gray3"
|
||
;; "Pixmap to use for search face on non-color displays."
|
||
;; :type 'string
|
||
;; :group 'viper)
|
||
;;(defcustom viper-search-face-pixmap "gray3"
|
||
;; "Pixmap to use for search face on non-color displays."
|
||
;; :type 'string
|
||
;; :group 'viper)
|
||
|
||
(defun viper-hide-face (face)
|
||
(if (and (viper-has-face-support-p) viper-emacs-p)
|
||
(add-to-list 'facemenu-unlisted-faces face)))
|
||
|
||
|
||
(defgroup viper-highlighting nil
|
||
"Hilighting of replace region, search pattern, minibuffer, etc."
|
||
:prefix "viper-"
|
||
:group 'viper)
|
||
|
||
;;(defvar viper-search-face
|
||
;; (if (viper-has-face-support-p)
|
||
;; (progn
|
||
;; (make-face 'viper-search-face)
|
||
;; (or (face-differs-from-default-p 'viper-search-face)
|
||
;; ;; face wasn't set in .viper or .Xdefaults
|
||
;; (if (viper-can-use-colors "Black" "khaki")
|
||
;; (progn
|
||
;; (set-face-background 'viper-search-face "khaki")
|
||
;; (set-face-foreground 'viper-search-face "Black"))
|
||
;; (set-face-underline-p 'viper-search-face t)
|
||
;; (viper-set-face-pixmap 'viper-search-face
|
||
;; viper-search-face-pixmap)))
|
||
;; 'viper-search-face))
|
||
;; "*Face used to flash out the search pattern.")
|
||
|
||
(defface viper-search-face
|
||
'((((class color)) (:foreground "Black" :background "khaki"))
|
||
(t (:underline t :stipple "gray3")))
|
||
"*Face used to flash out the search pattern."
|
||
:group 'viper-highlighting)
|
||
;; An internal variable. Viper takes the face from here.
|
||
(defvar viper-search-face 'viper-search-face
|
||
"Face used to flash out the search pattern.
|
||
DO NOT CHANGE this variable. Instead, use the customization widget
|
||
to customize the actual face object `viper-search-face'
|
||
this variable represents.")
|
||
(viper-hide-face 'viper-search-face)
|
||
|
||
;;(defvar viper-replace-overlay-face
|
||
;; (if (viper-has-face-support-p)
|
||
;; (progn
|
||
;; (make-face 'viper-replace-overlay-face)
|
||
;; (or (face-differs-from-default-p 'viper-replace-overlay-face)
|
||
;; (progn
|
||
;; (if (viper-can-use-colors "darkseagreen2" "Black")
|
||
;; (progn
|
||
;; (set-face-background
|
||
;; 'viper-replace-overlay-face "darkseagreen2")
|
||
;; (set-face-foreground 'viper-replace-overlay-face "Black")))
|
||
;; (set-face-underline-p 'viper-replace-overlay-face t)
|
||
;; (viper-set-face-pixmap
|
||
;; 'viper-replace-overlay-face viper-replace-overlay-pixmap)))
|
||
;; 'viper-replace-overlay-face))
|
||
;; "*Face for highlighting replace regions on a window display.")
|
||
|
||
(defface viper-replace-overlay-face
|
||
'((((class color)) (:foreground "Black" :background "darkseagreen2"))
|
||
(t (:underline t :stipple "gray3")))
|
||
"*Face for highlighting replace regions on a window display."
|
||
:group 'viper-highlighting)
|
||
;; An internal variable. Viper takes the face from here.
|
||
(defvar viper-replace-overlay-face 'viper-replace-overlay-face
|
||
"Face for highlighting replace regions on a window display.
|
||
DO NOT CHANGE this variable. Instead, use the customization widget
|
||
to customize the actual face object `viper-replace-overlay-face'
|
||
this variable represents.")
|
||
(viper-hide-face 'viper-replace-overlay-face)
|
||
|
||
;;(defvar viper-minibuffer-emacs-face
|
||
;; (if (viper-has-face-support-p)
|
||
;; (progn
|
||
;; (make-face 'viper-minibuffer-emacs-face)
|
||
;; (or (face-differs-from-default-p 'viper-minibuffer-emacs-face)
|
||
;; ;; face wasn't set in .viper or .Xdefaults
|
||
;; (if viper-vi-style-in-minibuffer
|
||
;; ;; emacs state is an exception in the minibuffer
|
||
;; (if (viper-can-use-colors "darkseagreen2" "Black")
|
||
;; (progn
|
||
;; (set-face-background
|
||
;; 'viper-minibuffer-emacs-face "darkseagreen2")
|
||
;; (set-face-foreground
|
||
;; 'viper-minibuffer-emacs-face "Black"))
|
||
;; (copy-face 'modeline 'viper-minibuffer-emacs-face))
|
||
;; ;; emacs state is the main state in the minibuffer
|
||
;; (if (viper-can-use-colors "Black" "pink")
|
||
;; (progn
|
||
;; (set-face-background 'viper-minibuffer-emacs-face "pink")
|
||
;; (set-face-foreground
|
||
;; 'viper-minibuffer-emacs-face "Black"))
|
||
;; (copy-face 'italic 'viper-minibuffer-emacs-face))
|
||
;; ))
|
||
;; 'viper-minibuffer-emacs-face))
|
||
;; "Face used in the Minibuffer when it is in Emacs state.")
|
||
|
||
(defface viper-minibuffer-emacs-face
|
||
'((((class color)) (:foreground "Black" :background "darkseagreen2"))
|
||
(t (:bold t)))
|
||
"Face used in the Minibuffer when it is in Emacs state."
|
||
:group 'viper-highlighting)
|
||
;; An internal variable. Viper takes the face from here.
|
||
(defvar viper-minibuffer-emacs-face 'viper-minibuffer-emacs-face
|
||
"Face used in the Minibuffer when it is in Emacs state.
|
||
DO NOT CHANGE this variable. Instead, use the customization widget
|
||
to customize the actual face object `viper-minibuffer-emacs-face'
|
||
this variable represents.")
|
||
(viper-hide-face 'viper-minibuffer-emacs-face)
|
||
|
||
;;(defvar viper-minibuffer-insert-face
|
||
;; (if (viper-has-face-support-p)
|
||
;; (progn
|
||
;; (make-face 'viper-minibuffer-insert-face)
|
||
;; (or (face-differs-from-default-p 'viper-minibuffer-insert-face)
|
||
;; (if viper-vi-style-in-minibuffer
|
||
;; (if (viper-can-use-colors "Black" "pink")
|
||
;; (progn
|
||
;; (set-face-background 'viper-minibuffer-insert-face "pink")
|
||
;; (set-face-foreground
|
||
;; 'viper-minibuffer-insert-face "Black"))
|
||
;; (copy-face 'italic 'viper-minibuffer-insert-face))
|
||
;; ;; If Insert state is an exception
|
||
;; (if (viper-can-use-colors "darkseagreen2" "Black")
|
||
;; (progn
|
||
;; (set-face-background
|
||
;; 'viper-minibuffer-insert-face "darkseagreen2")
|
||
;; (set-face-foreground
|
||
;; 'viper-minibuffer-insert-face "Black"))
|
||
;; (copy-face 'modeline 'viper-minibuffer-insert-face))
|
||
;; (viper-italicize-face 'viper-minibuffer-insert-face)))
|
||
;; 'viper-minibuffer-insert-face))
|
||
;; "Face used in the Minibuffer when it is in Insert state.")
|
||
|
||
(defface viper-minibuffer-insert-face
|
||
'((((class color)) (:foreground "Black" :background "pink"))
|
||
(t (:italic t)))
|
||
"Face used in the Minibuffer when it is in Insert state."
|
||
:group 'viper-highlighting)
|
||
;; An internal variable. Viper takes the face from here.
|
||
(defvar viper-minibuffer-insert-face 'viper-minibuffer-insert-face
|
||
"Face used in the Minibuffer when it is in Insert state.
|
||
DO NOT CHANGE this variable. Instead, use the customization widget
|
||
to customize the actual face object `viper-minibuffer-insert-face'
|
||
this variable represents.")
|
||
(viper-hide-face 'viper-minibuffer-insert-face)
|
||
|
||
;;(defvar viper-minibuffer-vi-face
|
||
;; (if (viper-has-face-support-p)
|
||
;; (progn
|
||
;; (make-face 'viper-minibuffer-vi-face)
|
||
;; (or (face-differs-from-default-p 'viper-minibuffer-vi-face)
|
||
;; (if viper-vi-style-in-minibuffer
|
||
;; (if (viper-can-use-colors "Black" "grey")
|
||
;; (progn
|
||
;; (set-face-background 'viper-minibuffer-vi-face "grey")
|
||
;; (set-face-foreground 'viper-minibuffer-vi-face "Black"))
|
||
;; (copy-face 'bold 'viper-minibuffer-vi-face))
|
||
;; (copy-face 'bold 'viper-minibuffer-vi-face)
|
||
;; (invert-face 'viper-minibuffer-vi-face)))
|
||
;; 'viper-minibuffer-vi-face))
|
||
;; "Face used in the Minibuffer when it is in Vi state.")
|
||
|
||
(defface viper-minibuffer-vi-face
|
||
'((((class color)) (:foreground "DarkGreen" :background "grey"))
|
||
(t (:inverse-video t)))
|
||
"Face used in the Minibuffer when it is in Vi state."
|
||
:group 'viper-highlighting)
|
||
;; An internal variable. Viper takes the face from here.
|
||
(defvar viper-minibuffer-vi-face 'viper-minibuffer-vi-face
|
||
"Face used in the Minibuffer when it is in Vi state.
|
||
DO NOT CHANGE this variable. Instead, use the customization widget
|
||
to customize the actual face object `viper-minibuffer-vi-face'
|
||
this variable represents.")
|
||
(viper-hide-face 'viper-minibuffer-vi-face)
|
||
|
||
;; the current face to be used in the minibuffer
|
||
(viper-deflocalvar
|
||
viper-minibuffer-current-face viper-minibuffer-emacs-face "")
|
||
|
||
|
||
;;; Miscellaneous
|
||
|
||
(defvar viper-inhibit-startup-message nil
|
||
"Whether Viper startup message should be inhibited.")
|
||
|
||
(defcustom viper-spell-function 'ispell-region
|
||
"Spell function used by #s<move> command to spell."
|
||
:type 'function
|
||
:group 'viper-misc)
|
||
|
||
(defcustom viper-tags-file-name "TAGS"
|
||
"The tags file used by Viper."
|
||
:type 'string
|
||
:group 'viper-misc)
|
||
|
||
;; Minibuffer
|
||
|
||
(defcustom viper-vi-style-in-minibuffer t
|
||
"If t, use vi-style editing in minibuffer.
|
||
Should be set in `~/.viper' file."
|
||
:type 'boolean
|
||
:group 'viper)
|
||
|
||
;; overlay used in the minibuffer to indicate which state it is in
|
||
(viper-deflocalvar viper-minibuffer-overlay nil)
|
||
|
||
;; Hook, specific to Viper, which is run just *before* exiting the minibuffer.
|
||
;; Beginning with Emacs 19.26, the standard `minibuffer-exit-hook' is run
|
||
;; *after* exiting the minibuffer
|
||
(defvar viper-minibuffer-exit-hook '(viper-minibuffer-trim-tail))
|
||
|
||
|
||
;; Mode line
|
||
(defconst viper-vi-state-id "<V> "
|
||
"Mode line tag identifying the Vi mode of Viper.")
|
||
(defconst viper-emacs-state-id "<E> "
|
||
"Mode line tag identifying the Emacs mode of Viper.")
|
||
(defconst viper-insert-state-id "<I> "
|
||
"Mode line tag identifying the Insert mode of Viper.")
|
||
(defconst viper-replace-state-id "<R> "
|
||
"Mode line tag identifying the Replace mode of Viper.")
|
||
|
||
|
||
(defgroup viper-hooks nil
|
||
"Viper hooks."
|
||
:prefix "viper-"
|
||
:group 'viper)
|
||
|
||
(defcustom viper-vi-state-hook nil
|
||
"*Hooks run just before the switch to Vi mode is completed."
|
||
:type 'hook
|
||
:group 'viper-hooks)
|
||
(defcustom viper-insert-state-hook nil
|
||
"*Hooks run just before the switch to Insert mode is completed."
|
||
:type 'hook
|
||
:group 'viper-hooks)
|
||
(defcustom viper-replace-state-hook nil
|
||
"*Hooks run just before the switch to Replace mode is completed."
|
||
:type 'hook
|
||
:group 'viper-hooks)
|
||
(defcustom viper-emacs-state-hook nil
|
||
"*Hooks run just before the switch to Emacs mode is completed."
|
||
:type 'hook
|
||
:group 'viper-hooks)
|
||
|
||
(defcustom viper-load-hook nil
|
||
"Hooks run just after loading Viper."
|
||
:type 'hook
|
||
:group 'viper-hooks)
|
||
|
||
|
||
;;; Local Variables:
|
||
;;; eval: (put 'viper-deflocalvar 'lisp-indent-hook 'defun)
|
||
;;; End:
|
||
|
||
;;; viper-ex.el ends here
|