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- ;;; viper-init.el --- some common definitions for Viper
-
- ;; Copyright (C) 1997 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
-
- (provide 'viper-init)
-
- ;; compiler pacifier
- (defvar mark-even-if-inactive)
- (defvar quail-mode)
- (defvar iso-accents-mode)
- (defvar viper-current-state)
- (defvar viper-version)
- (defvar viper-expert-level)
- ;; end pacifier
-
-
- ;; Viper version
- (defun viper-version ()
- (interactive)
- (message "Viper version is %s" viper-version))
-
- ;; Is it XEmacs?
- (defconst viper-xemacs-p (string-match "XEmacs" emacs-version))
- ;; Is it Emacs?
- (defconst viper-emacs-p (not viper-xemacs-p))
- ;; Tell whether we are running as a window application or on a TTY
- (defsubst viper-device-type ()
- (if viper-emacs-p
- window-system
- (device-type (selected-device))))
- ;; in XEmacs: device-type is tty on tty and stream in batch.
- (defun viper-window-display-p ()
- (and (viper-device-type) (not (memq (viper-device-type) '(tty stream pc)))))
-
- (defcustom viper-ms-style-os-p (memq system-type
- '(ms-dos windows-nt windows-95))
- "Tells if Emacs is running under an MS-style OS: ms-dos, windows-nt, W95."
- :type 'boolean
- :tag "Is it Microsoft-made OS?"
- :group 'viper-misc)
- (defcustom viper-vms-os-p (memq system-type '(vax-vms axp-vms))
- "Tells if Emacs is running under VMS."
- :type 'boolean
- :tag "Is it VMS?"
- :group 'viper-misc)
-
- (defcustom viper-force-faces nil
- "If t, Viper will think that it is running on a display that supports faces.
- This is provided as a temporary relief for users of graphics-capable terminals
- that Viper doesn't know about.
- In all likelihood, you don't need to bother with this setting."
- :type 'boolean
- :group 'viper-highlighting)
-
- (defun viper-has-face-support-p ()
- (cond ((viper-window-display-p))
- (viper-force-faces)
- (viper-emacs-p (memq (viper-device-type) '(pc)))
- (viper-xemacs-p (memq (viper-device-type) '(tty pc)))))
-
-
- ;;; Macros
-
- (defmacro viper-deflocalvar (var default-value &optional documentation)
- (` (progn
- (defvar (, var) (, default-value)
- (, (format "%s\n\(buffer local\)" documentation)))
- (make-variable-buffer-local '(, var))
- )))
-
- ;; (viper-loop COUNT BODY) Execute BODY COUNT times.
- (defmacro viper-loop (count &rest body)
- (` (let ((count (, count)))
- (while (> count 0)
- (progn
- (,@ body)
- (setq count (1- count))
- ))
- )))
-
- (defmacro viper-buffer-live-p (buf)
- (` (and (, buf) (get-buffer (, buf)) (buffer-name (get-buffer (, buf))))))
-
- ;; return buffer-specific macro definition, given a full macro definition
- (defmacro viper-kbd-buf-alist (macro-elt)
- (` (nth 1 (, macro-elt))))
- ;; get a pair: (curr-buffer . macro-definition)
- (defmacro viper-kbd-buf-pair (macro-elt)
- (` (assoc (buffer-name) (viper-kbd-buf-alist (, macro-elt)))))
- ;; get macro definition for current buffer
- (defmacro viper-kbd-buf-definition (macro-elt)
- (` (cdr (viper-kbd-buf-pair (, macro-elt)))))
-
- ;; return mode-specific macro definitions, given a full macro definition
- (defmacro viper-kbd-mode-alist (macro-elt)
- (` (nth 2 (, macro-elt))))
- ;; get a pair: (major-mode . macro-definition)
- (defmacro viper-kbd-mode-pair (macro-elt)
- (` (assoc major-mode (viper-kbd-mode-alist (, macro-elt)))))
- ;; get macro definition for the current major mode
- (defmacro viper-kbd-mode-definition (macro-elt)
- (` (cdr (viper-kbd-mode-pair (, macro-elt)))))
-
- ;; return global macro definition, given a full macro definition
- (defmacro viper-kbd-global-pair (macro-elt)
- (` (nth 3 (, macro-elt))))
- ;; get global macro definition from an elt of macro-alist
- (defmacro viper-kbd-global-definition (macro-elt)
- (` (cdr (viper-kbd-global-pair (, macro-elt)))))
-
- ;; last elt of a sequence
- (defsubst viper-seq-last-elt (seq)
- (elt seq (1- (length seq))))
-
- (defsubst viper-string-to-list (string)
- (append (vconcat string) nil))
-
- (defsubst viper-charlist-to-string (list)
- (mapconcat 'char-to-string list ""))
-
- ;; like char-after/before, but saves typing
- (defun viper-char-at-pos (direction &optional offset)
- (or (integerp offset) (setq offset 0))
- (if (eq direction 'forward)
- (char-after (+ (point) offset))
- (char-before (- (point) offset))))
-
-
- (defvar viper-minibuffer-overlay-priority 300)
- (defvar viper-replace-overlay-priority 400)
- (defvar viper-search-overlay-priority 500)
-
-
- ;;; Viper minor modes
-
- ;; Mode for vital things like \e, C-z.
- (viper-deflocalvar viper-vi-intercept-minor-mode nil)
-
- (viper-deflocalvar viper-vi-basic-minor-mode nil
- "Viper's minor mode for Vi bindings.")
-
- (viper-deflocalvar viper-vi-local-user-minor-mode nil
- "Auxiliary minor mode for user-defined local bindings in Vi state.")
-
- (viper-deflocalvar viper-vi-global-user-minor-mode nil
- "Auxiliary minor mode for user-defined global bindings in Vi state.")
-
- (viper-deflocalvar viper-vi-state-modifier-minor-mode nil
- "Minor mode used to make major-mode-specific modification to Vi state.")
-
- (viper-deflocalvar viper-vi-diehard-minor-mode nil
- "This minor mode is in effect when the user wants Viper to be Vi.")
-
- (viper-deflocalvar viper-vi-kbd-minor-mode nil
- "Minor mode for Ex command macros in Vi state.
- The corresponding keymap stores key bindings of Vi macros defined with
- the Ex command :map.")
-
- ;; Mode for vital things like \e, C-z.
- (viper-deflocalvar viper-insert-intercept-minor-mode nil)
-
- (viper-deflocalvar viper-insert-basic-minor-mode nil
- "Viper's minor mode for bindings in Insert mode.")
-
- (viper-deflocalvar viper-insert-local-user-minor-mode nil
- "Auxiliary minor mode for buffer-local user-defined bindings in Insert state.
- This is a way to overshadow normal Insert mode bindings locally to certain
- designated buffers.")
-
- (viper-deflocalvar viper-insert-global-user-minor-mode nil
- "Auxiliary minor mode for global user-defined bindings in Insert state.")
-
- (viper-deflocalvar viper-insert-state-modifier-minor-mode nil
- "Minor mode used to make major-mode-specific modification to Insert state.")
-
- (viper-deflocalvar viper-insert-diehard-minor-mode nil
- "Minor mode that simulates Vi very closely.
- Not recommened, except for the novice user.")
-
- (viper-deflocalvar viper-insert-kbd-minor-mode nil
- "Minor mode for Ex command macros Insert state.
- The corresponding keymap stores key bindings of Vi macros defined with
- the Ex command :map!.")
-
- (viper-deflocalvar viper-replace-minor-mode nil
- "Minor mode in effect in replace state (cw, C, and the like commands).")
-
- ;; Mode for vital things like \C-z and \C-x) This is set to t, when viper-mode
- ;; is invoked. So, any new buffer will have C-z defined as switch to Vi, unless
- ;; we switched states in this buffer
- (viper-deflocalvar viper-emacs-intercept-minor-mode nil)
-
- (viper-deflocalvar viper-emacs-local-user-minor-mode nil
- "Minor mode for local user bindings effective in Emacs state.
- Users can use it to override Emacs bindings when Viper is in its Emacs
- state.")
-
- (viper-deflocalvar viper-emacs-global-user-minor-mode nil
- "Minor mode for global user bindings in effect in Emacs state.
- Users can use it to override Emacs bindings when Viper is in its Emacs
- state.")
-
- (viper-deflocalvar viper-emacs-kbd-minor-mode nil
- "Minor mode for Vi style macros in Emacs state.
- The corresponding keymap stores key bindings of Vi macros defined with
- `viper-record-kbd-macro' command. There is no Ex-level command to do this
- interactively.")
-
- (viper-deflocalvar viper-emacs-state-modifier-minor-mode nil
- "Minor mode used to make major-mode-specific modification to Emacs state.
- For instance, a Vi purist may want to bind `dd' in Dired mode to a function
- that deletes a file.")
-
- (viper-deflocalvar viper-vi-minibuffer-minor-mode nil
- "Minor mode that forces Vi-style when the Minibuffer is in Vi state.")
-
- (viper-deflocalvar viper-insert-minibuffer-minor-mode nil
- "Minor mode that forces Vi-style when the Minibuffer is in Insert state.")
-
-
-
- ;; Some common error messages
-
- (defconst viper-SpuriousText "Spurious text after command" "")
- (defconst viper-BadExCommand "Not an editor command" "")
- (defconst viper-InvalidCommandArgument "Invalid command argument" "")
- (defconst viper-NoPrevSearch "No previous search string" "")
- (defconst viper-EmptyRegister "`%c': Nothing in this register" "")
- (defconst viper-InvalidRegister "`%c': Invalid register" "")
- (defconst viper-EmptyTextmarker "`%c': Text marker doesn't point anywhere" "")
- (defconst viper-InvalidTextmarker "`%c': Invalid text marker" "")
- (defconst viper-InvalidViCommand "Invalid command" "")
- (defconst viper-BadAddress "Ill-formed address" "")
- (defconst viper-FirstAddrExceedsSecond "First address exceeds second" "")
- (defconst viper-NoFileSpecified "No file specified" "")
-
- ;; Is t until viper-mode executes for the very first time.
- ;; Prevents recursive descend into startup messages.
- (defvar viper-first-time t)
-
- (defvar viper-expert-level (if (boundp 'viper-expert-level) viper-expert-level 0)
- "User's expert level.
- The minor mode viper-vi-diehard-minor-mode is in effect when
- viper-expert-level is 1 or 2 or when viper-want-emacs-keys-in-vi is t.
- The minor mode viper-insert-diehard-minor-mode is in effect when
- viper-expert-level is 1 or 2 or if viper-want-emacs-keys-in-insert is t.
- Use `M-x viper-set-expert-level' to change this.")
-
- ;; Max expert level supported by Viper. This is NOT a user option.
- ;; It is here to make it hard for the user from resetting it.
- (defconst viper-max-expert-level 5)
-
-
- ;;; ISO characters and MULE
-
- ;; If non-nil, ISO accents will be turned on in insert/replace emacs states and
- ;; turned off in vi-state. For some users, this behavior may be too
- ;; primitive. In this case, use insert/emacs/vi state hooks.
- (viper-deflocalvar viper-automatic-iso-accents nil "")
- ;; Set iso-accents-mode to ARG. Check if it is bound first
- (defsubst viper-set-iso-accents-mode (arg)
- (if (boundp 'iso-accents-mode)
- (setq iso-accents-mode arg)))
-
- ;; Internal flag used to control when viper mule hooks are run.
- ;; Don't change this!
- (defvar viper-mule-hook-flag t)
- ;; If non-nil, the default intl. input method is turned on.
- (viper-deflocalvar viper-special-input-method nil "")
-
- ;; viper hook to run on input-method activation
- (defun viper-activate-input-method-action ()
- (if (null viper-mule-hook-flag)
- ()
- (setq viper-special-input-method t)
- ;; turn off special input methods in vi-state
- (if (eq viper-current-state 'vi-state)
- (viper-set-input-method nil))
- (if (memq viper-current-state '(vi-state insert-state replace-state))
- (message "Viper special input method%s: on"
- (if (or current-input-method default-input-method)
- (format " %S"
- (or current-input-method default-input-method))
- "")))
- ))
- ;; viper hook to run on input-method deactivation
- (defun viper-inactivate-input-method-action ()
- (if (null viper-mule-hook-flag)
- ()
- (setq viper-special-input-method nil)
- (if (memq viper-current-state '(vi-state insert-state replace-state))
- (message "Viper special input method%s: off"
- (if (or current-input-method default-input-method)
- (format " %S"
- (or current-input-method default-input-method))
- "")))))
-
- (defun viper-inactivate-input-method ()
- (cond ((and viper-emacs-p (fboundp 'inactivate-input-method))
- (inactivate-input-method))
- ((and viper-xemacs-p (boundp 'current-input-method))
- ;; XEmacs had broken quil-mode for some time, so we are working around
- ;; it here
- (setq quail-mode nil)
- (if (featurep 'quail)
- (quail-delete-overlays))
- (setq describe-current-input-method-function nil)
- (setq current-input-method nil)
- (run-hooks 'input-method-inactivate-hook)
- (force-mode-line-update))
- ))
- (defun viper-activate-input-method ()
- (cond ((and viper-emacs-p (fboundp 'activate-input-method))
- (activate-input-method default-input-method))
- ((and viper-xemacs-p (fboundp 'quail-mode))
- (quail-mode 1))))
-
- ;; Set quail-mode to ARG
- (defun viper-set-input-method (arg)
- (setq viper-mule-hook-flag t) ; just a precaution
- (let (viper-mule-hook-flag) ; temporarily inactivate viper mule hooks
- (cond ((and arg (> (prefix-numeric-value arg) 0) default-input-method)
- ;; activate input method
- (viper-activate-input-method))
- (t ; deactivate input method
- (viper-inactivate-input-method)))
- ))
-
-
- ;; VI-style Undo
-
- ;; Used to 'undo' complex commands, such as replace and insert commands.
- (viper-deflocalvar viper-undo-needs-adjustment nil)
- (put 'viper-undo-needs-adjustment 'permanent-local t)
-
- ;; A mark that Viper puts on buffer-undo-list. Marks the beginning of a
- ;; complex command that must be undone atomically. If inserted, it is
- ;; erased by viper-change-state-to-vi and viper-repeat.
- (defconst viper-buffer-undo-list-mark 'viper)
-
- (defcustom viper-keep-point-on-undo nil
- "*Non-nil means not to move point while undoing commands.
- This style is different from Emacs and Vi. Try it to see if
- it better fits your working style."
- :type 'boolean
- :tag "Preserve Position of Point After Undo"
- :group 'viper)
-
- ;; Replace mode and changing text
-
- ;; Viper's own after/before change functions, which get viper-add-hook'ed to
- ;; Emacs's
- (viper-deflocalvar viper-after-change-functions nil "")
- (viper-deflocalvar viper-before-change-functions nil "")
- (viper-deflocalvar viper-post-command-hooks nil "")
- (viper-deflocalvar viper-pre-command-hooks nil "")
-
- ;; Can be used to pass global states around for short period of time
- (viper-deflocalvar viper-intermediate-command nil "")
-
- ;; This is used to pass the right Vi command key sequence to
- ;; viper-set-destructive-command whenever (this-command-keys) doesn't give the
- ;; right result. For instance, in commands like c/bla<RET>, (this-command-keys)
- ;; will return ^M, which invoked exit-minibuffer, while we need "c/"
- (defconst viper-this-command-keys nil)
-
- ;; Indicates that the current destructive command has started in replace mode.
- (viper-deflocalvar viper-began-as-replace nil "")
-
- (defcustom viper-allow-multiline-replace-regions t
- "If non-nil, Viper will allow multi-line replace regions.
- This is an extension to standard Vi.
- If nil, commands that attempt to replace text spanning multiple lines first
- delete the text being replaced, as in standard Vi."
- :type 'boolean
- :group 'viper)
-
- (defcustom viper-replace-overlay-cursor-color "Red"
- "*Cursor color when Viper is in Replace state."
- :type 'string
- :group 'viper)
- (defcustom viper-insert-state-cursor-color "Green"
- "Cursor color when Viper is in insert state."
- :type 'string
- :group 'viper)
-
- ;; place to save cursor colow when switching to insert mode
- (viper-deflocalvar viper-saved-cursor-color nil "")
-
- (viper-deflocalvar viper-replace-overlay nil "")
- (put 'viper-replace-overlay 'permanent-local t)
-
- (defcustom viper-replace-region-end-delimiter "$"
- "A string marking the end of replacement regions.
- It is used only with TTYs or if `viper-use-replace-region-delimiters'
- is non-nil."
- :type 'string
- :group 'viper)
- (defcustom viper-replace-region-start-delimiter ""
- "A string marking the beginning of replacement regions.
- It is used only with TTYs or if `viper-use-replace-region-delimiters'
- is non-nil."
- :type 'string
- :group 'viper)
- (defcustom viper-use-replace-region-delimiters
- (or (not (viper-has-face-support-p))
- (and viper-xemacs-p (eq (viper-device-type) 'tty)))
- "*If non-nil, Viper will always use `viper-replace-region-end-delimiter' and
- `viper-replace-region-start-delimiter' to delimit replacement regions, even on
- color displays. By default, the delimiters are used only on TTYs."
- :type 'boolean
- :group 'viper)
-
- ;; XEmacs requires glyphs
- (if viper-xemacs-p
- (progn
- (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
-