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authorStefan Ritter <xeno@thehappy.de>2009-12-18 15:07:27 +0100
committerStefan Ritter <xeno@thehappy.de>2009-12-18 15:07:27 +0100
commit4190b8bbcbd4dc6cf0a65884b09548f3bb8574c0 (patch)
tree8683164fd2218ee4e72e1a6bcd9493caea2b282a /emacs
parentf70ecacf6f28da73087cf6fdd13cd6a614cdb536 (diff)
Sorted emacs stuff
Diffstat (limited to 'emacs')
-rw-r--r--emacs/emacs (renamed from emacs)0
-rw-r--r--emacs/viper.el1378
2 files changed, 1378 insertions, 0 deletions
diff --git a/emacs b/emacs/emacs
index 97b46f8..97b46f8 100644
--- a/emacs
+++ b/emacs/emacs
diff --git a/emacs/viper.el b/emacs/viper.el
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+++ b/emacs/viper.el
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+;;; viper.el --- A full-featured Vi emulator for GNU Emacs and XEmacs,
+;; a VI Plan for Emacs Rescue,
+;; and a venomous VI PERil.
+;; Viper Is also a Package for Emacs Rebels.
+
+;; Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+;; 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+
+;; Author: Michael Kifer <kifer@cs.stonybrook.edu>
+;; Keywords: emulations
+
+;; Yoni Rabkin <yoni@rabkins.net> contacted the maintainer of this
+;; file on 20/3/2008, and the maintainer agreed that when a bug is
+;; filed in the Emacs bug reporting system against this file, a copy
+;; of the bug report be sent to the maintainer's email address.
+
+(defconst viper-version "3.14.1 of August 15, 2009"
+ "The current version of Viper")
+
+;; 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Viper is a full-featured Vi emulator for Emacs and XEmacs. It emulates and
+;; improves upon the standard features of Vi and, at the same time, allows
+;; full access to all Emacs facilities. Viper supports multiple undo,
+;; file name completion, command, file, and search history and it extends
+;; Vi in many other ways. Viper is highly customizable through the various
+;; hooks, user variables, and keymaps. It is implemented as a collection
+;; of minor modes and it is designed to provide full access to all Emacs
+;; major and minor modes.
+;;
+;;; History:
+;;
+;; Viper is a new name for a package formerly known as VIP-19,
+;; which was a successor of VIP version 3.5 by Masahiko Sato
+;; <ms@sail.stanford.edu> and VIP version 4.2 by Aamod Sane
+;; <sane@cs.uiuc.edu>. Some ideas from vip 4.4.2 by Aamod Sane
+;; were also shamelessly plagiarized.
+;;
+;; Viper maintains some degree of compatibility with these older
+;; packages. See the documentation for customization.
+;;
+;; The main difference between Viper and these older packages are:
+;;
+;; 1. Viper emulates Vi at several levels, from almost complete conformity
+;; to a rather loose Vi-compliance.
+;;
+;; 2. Viper provides full access to all major and minor modes of Emacs
+;; without the need to type extra keys.
+;; The older versions of VIP (and other Vi emulators) do not work with
+;; some major and minor modes.
+;;
+;; 3. Viper supports vi-style undo.
+;;
+;; 4. Viper fully emulates (and improves upon) vi's replacement mode.
+;;
+;; 5. Viper has a better interface to ex, including command, variable, and
+;; file name completion.
+;;
+;; 6. Viper uses native Emacs history and completion features; it doesn't
+;; rely on other packages (such as gmhist.el and completer.el) to provide
+;; these features.
+;;
+;; 7. Viper supports Vi-style editing in the minibuffer, by allowing the
+;; user to switch from Insert state to Vi state to Replace state, etc.
+;;
+;; 8. Viper keeps history of recently inserted pieces of text and recently
+;; executed Vi-style destructive commands, such as `i', `d', etc.
+;; These pieces of text can be inserted in later insertion commands;
+;; the previous destructive commands can be re-executed.
+;;
+;; 9. Viper has Vi-style keyboard macros, which enhances the similar
+;; facility in the original Vi.
+;; First, one can execute any Emacs command while defining a
+;; macro, not just the Vi commands. Second, macros are defined in a
+;; WYSYWYG mode, using an interface to Emacs' WYSIWYG style of defining
+;; macros. Third, in Viper, one can define macros that are specific to
+;; a given buffer, a given major mode, or macros defined for all buffers.
+;; The same macro name can have several different definitions:
+;; one global, several definitions for various major modes, and
+;; definitions for specific buffers.
+;; Buffer-specific definitions override mode-specific
+;; definitions, which, in turn, override global definitions.
+;;
+;;
+;;; Installation:
+;; -------------
+;;
+;; (require 'viper)
+;;
+
+;;; Acknowledgements:
+;; -----------------
+;; Bug reports and ideas contributed by many users have helped
+;; improve Viper and the various versions of VIP.
+;; See the on-line manual for a complete list of contributors.
+;;
+;;
+;;; Notes:
+;;
+;; 1. Major modes.
+;; In most cases, Viper handles major modes correctly, i.e., they come up
+;; in the right state (either vi-state or emacs-state). For instance, text
+;; files come up in vi-state, while, say, Dired appears in emacs-state by
+;; default.
+;; However, some modes do not appear in the right mode in the beginning,
+;; usually because they neglect to follow Emacs conventions (e.g., they don't
+;; use kill-all-local-variables when they start). Some major modes
+;; may fail to come up in emacs-state if they call hooks, such as
+;; text-hook, for no good reason.
+;;
+;; As an immediate solution, you can hit C-z to bring about the right mode.
+;; An interim solution is to add an appropriate hook to the mode like this:
+;;
+;; (add-hook 'your-favorite-mode 'viper-mode)
+;; or
+;; (add-hook 'your-favorite-mode 'viper-change-state-to-emacs)
+;;
+;; whichever applies. The right thing to do, however, is to complain to the
+;; author of the respective package. (Sometimes they also neglect to equip
+;; their modes with hooks, which is one more reason for complaining.)
+;;
+;; 2. Keymap handling
+;; Each Viper state (insert, vi, replace) is implemented as a collection of
+;; several minor modes, each with its own keymap.
+;;
+;; Viper's Vi state consists of seven minor modes:
+;;
+;; viper-vi-intercept-minor-mode
+;; viper-vi-local-user-minor-mode
+;; viper-vi-global-user-minor-mode
+;; viper-vi-kbd-minor-mode
+;; viper-vi-state-modifier-minor-mode
+;; viper-vi-diehard-minor-mode
+;; viper-vi-basic-minor-mode
+;;
+;; Bindings done to the keymap of the first mode overshadow those done to
+;; the second, which, in turn, overshadows those done to the third, etc.
+;;
+;; The last viper-vi-basic-minor-mode contains most of the usual Vi bindings
+;; in its edit mode. This mode provides access to all Emacs facilities.
+;; Novice users, however, may want to set their viper-expert-level to 1
+;; in their .viper file. This will enable viper-vi-diehard-minor-mode. This
+;; minor mode's bindings make Viper simulate the usual Vi very closely.
+;; For instance, C-c will not have its standard Emacs binding
+;; and so many of the goodies of Emacs are not available.
+;;
+;; A skilled user should set viper-expert-level to at least 3. This will
+;; enable `C-c' and many Emacs facilities will become available.
+;; In this case, viper-vi-diehard-minor-mode is inactive.
+;;
+;; Viper gurus should have at least
+;; (setq viper-expert-level 4)
+;; in their ~/.viper files. This will unsuppress all Emacs keys that are not
+;; essential for VI-style editing.
+;; Pick-and-choose users may want to put
+;; (setq viper-expert-level 5)
+;; in ~/.viper. Viper will then leave it up to the user to set the variables
+;; viper-want-* See viper-set-expert-level for details.
+;;
+;; The very first minor mode, viper-vi-intercept-minor-mode, is of no
+;; concern for the user. It is needed to bind Viper's vital keys, such as
+;; ESC and C-z.
+;;
+;; The second mode, viper-vi-local-user-minor-mode, usually has an
+;; empty keymap. However, the user can set bindings in this keymap, which
+;; will overshadow the corresponding bindings in the other two minor
+;; modes. This is useful, for example, for setting up ZZ in gnus,
+;; rmail, mh-e, etc., to send message instead of saving it in a file.
+;; Likewise, in Dired mode, you may want to bind ZN and ZP to commands
+;; that would visit the next or the previous file in the Dired buffer.
+;; Setting local keys is tricky, so don't do it directly. Instead, use
+;; viper-add-local-keys function (see its doc).
+;;
+;; The third minor mode, viper-vi-global-user-minor-mode, is also intended
+;; for the users but, unlike viper-vi-local-user-minor-mode, its key
+;; bindings are seen in all Viper buffers. This mode keys can be done
+;; with define-key command.
+;;
+;; The fourth minor mode, viper-vi-kbd-minor-mode, is used by keyboard
+;; macros. Users are NOT supposed to modify this keymap directly.
+;;
+;; The fifth mode, viper-vi-state-modifier-minor-mode, can be used to set
+;; key bindings that are visible in some major modes but not in others.
+;;
+;; Users are allowed to modify keymaps that belong to
+;; viper-vi-local-user-minor-mode, viper-vi-global-user-minor-mode,
+;; and viper-vi-state-modifier-minor-mode only.
+;;
+;; Viper's Insert state also has seven minor modes:
+;;
+;; viper-insert-intercept-minor-mode
+;; viper-insert-local-user-minor-mode
+;; viper-insert-global-user-minor-mode
+;; viper-insert-kbd-minor-mode
+;; viper-insert-state-modifier-minor-mode
+;; viper-insert-diehard-minor-mode
+;; viper-insert-basic-minor-mode
+;;
+;; As with VI's editing modes, the first mode,
+;; viper-insert-intercept-minor-mode is used to bind vital keys that are not
+;; to be changed by the user.
+;;
+;; The next mode, viper-insert-local-user-minor-mode, is used to customize
+;; bindings in the insert state of Viper. The third mode,
+;; viper-insert-global-user-minor-mode is like
+;; viper-insert-local-user-minor-mode, except that its bindings are seen in
+;; all Viper buffers. As with viper-vi-local-user-minor-mode, its bindings
+;; should be done via the function viper-add-local-keys. Bindings for
+;; viper-insert-global-user-minor-mode can be set with the define-key command.
+;;
+;; The next minor mode, viper-insert-kbd-minor-mode,
+;; is used for keyboard VI-style macros defined with :map!.
+;;
+;; The fifth minor mode, viper-insert-state-modifier-minor-mode, is like
+;; viper-vi-state-modifier-minor-mode, except that it is used in the Insert
+;; state; it can be used to modify keys in a mode-specific fashion.
+;;
+;; The minor mode viper-insert-diehard-minor-mode is in effect when
+;; the user wants a high degree of Vi compatibility (a bad idea, really!).
+;; The last minor mode, viper-insert-basic-minor-mode, is always in effect
+;; when Viper is in insert state. It binds a small number of keys needed for
+;; Viper's operation.
+;;
+;; Finally, Viper provides minor modes for overriding bindings set by Emacs
+;; modes when Viper is in Emacs state:
+;;
+;; viper-emacs-local-user-minor-mode
+;; viper-emacs-global-user-minor-mode
+;; viper-emacs-kbd-minor-mode
+;; viper-emacs-state-modifier-minor-mode
+;;
+;; These minor modes are in effect when Viper is in Emacs state. The keymap
+;; associated with viper-emacs-global-user-minor-mode,
+;; viper-emacs-global-user-map, overrides the global and local keymaps as
+;; well as the minor mode keymaps set by other modes. The keymap of
+;; viper-emacs-local-user-minor-mode, viper-emacs-local-user-map, overrides
+;; everything, but it is used on a per buffer basis.
+;; The keymap associated with viper-emacs-state-modifier-minor-mode
+;; overrides keys on a per-major-mode basis. The mode
+;; viper-emacs-kbd-minor-mode is used to define Vi-style macros in Emacs
+;; state.
+;;
+;; 3. There is also one minor mode that is used when Viper is in its
+;; replace-state (used for commands like cw, C, etc.). This mode is
+;; called
+;;
+;; viper-replace-minor-mode
+;;
+;; and its keymap is viper-replace-map. Replace minor mode is always
+;; used in conjunction with the minor modes for insert-state, and its
+;; keymap overshadows the keymaps for insert minor modes.
+;;
+;; 4. Defining buffer-local bindings in Vi and Insert modes.
+;; As mentioned before, sometimes, it is convenient to have
+;; buffer-specific of mode-specific key bindings in Vi and insert modes.
+;; Viper provides a special function, viper-add-local-keys, to do precisely
+;; this. For instance, is you need to add couple of mode-specific bindings
+;; to Insert mode, you can put
+;;
+;; (viper-add-local-keys 'insert-state '((key1 . func1) (key2 .func2)))
+;;
+;; somewhere in a hook of this major mode. If you put something like this
+;; in your own elisp function, this will define bindings specific to the
+;; buffer that was current at the time of the call to viper-add-local-keys.
+;; The only thing to make sure here is that the major mode of this buffer
+;; is written according to Emacs conventions, which includes a call to
+;; (kill-all-local-variables). See viper-add-local-keys for more details.
+;;
+;;
+;; TO DO (volunteers?):
+;;
+;; 1. Some of the code that is inherited from VIP-3.5 is rather
+;; convoluted. Instead of viper-command-argument, keymaps should bind the
+;; actual commands. E.g., "dw" should be bound to a generic command
+;; viper-delete that will delete things based on the value of
+;; last-command-event. This would greatly simplify the logic and the code.
+;;
+;; 2. Somebody should venture to write a customization package a la
+;; options.el that would allow the user to change values of variables
+;; that meet certain specs (e.g., match a regexp) and whose doc string
+;; starts with a '*'. Then, the user should be offered to save
+;; variables that were changed. This will make user's customization job
+;; much easier.
+;;
+
+;;; Code:
+
+;; compiler pacifier
+(defvar mark-even-if-inactive)
+(defvar quail-mode)
+(defvar viper-expert-level)
+(defvar viper-mode-string)
+(defvar viper-major-mode-modifier-list)
+;; end pacifier
+
+(require 'advice)
+(require 'viper-init)
+(require 'viper-keym)
+
+;; better be defined before Viper custom group.
+(defvar viper-custom-file-name (convert-standard-filename "~/.viper")
+ "Viper customization file.
+If set by the user, this must be done _before_ Viper is loaded in `~/.emacs'.")
+
+(defgroup viper nil
+ "Vi emulation within Emacs.
+NOTE: Viper customization should be saved in `viper-custom-file-name', which
+defaults to `~/.viper'."
+ :prefix "viper-"
+ :group 'emulations)
+
+(require 'viper-cmd)
+
+(defgroup viper-misc nil
+ "Miscellaneous Viper customization."
+ :prefix "viper-"
+ :group 'viper)
+
+
+(defcustom viper-always t
+ "Non-nil means, arrange for vi-state to be a default when appropriate.
+This is different from `viper-mode' variable in that `viper-mode' determines
+whether to use Viper in the first place, while `viper-always', if nil, lets
+user decide when to invoke Viper in a major mode."
+ :type 'boolean
+ :tag "Always Invoke Viper"
+ :group 'viper-misc)
+
+;; Non-viper variables that need to be saved in case the user decides to
+;; de-viperize emacs.
+(defvar viper-saved-non-viper-variables nil)
+
+(defcustom viper-mode (cond (noninteractive nil)
+ (t 'ask))
+ "To Viperize or not to Viperize.
+If t, viperize Emacs. If nil -- don't. If `ask', ask the user.
+This variable is used primarily when Viper is being loaded.
+
+Must be set in `~/.emacs' before Viper is loaded.
+DO NOT set this variable interactively, unless you are using the customization
+widget."
+ :type '(choice (const nil) (const t) (const ask))
+ :tag "Set Viper Mode on Loading"
+ :group 'viper-misc)
+
+(defcustom viper-vi-state-mode-list
+ '(fundamental-mode
+ makefile-mode
+
+ awk-mode
+ m4-mode
+ xrdb-mode
+ winmgr-mode
+ autoconf-mode
+ cvs-edit-mode
+
+ html-mode html-helper-mode
+ emacs-lisp-mode lisp-mode lisp-interaction-mode
+
+ jde-mode java-mode
+ cc-mode c-mode c++-mode objc-mode
+ fortran-mode f90-mode
+ basic-mode
+ bat-mode
+ asm-mode
+ prolog-mode
+ flora-mode
+ sql-mode
+
+ text-mode indented-text-mode
+ tex-mode latex-mode bibtex-mode
+ ps-mode
+
+ ;; completion-list-mode
+ diff-mode
+ idl-mode
+
+ perl-mode
+ cperl-mode
+ javascript-mode
+ tcl-mode
+ python-mode
+
+ sh-mode ksh-mode csh-mode
+
+ gnus-article-mode
+ mh-show-mode
+ )
+ "Major modes that require Vi command state."
+ :type '(repeat symbol)
+ :group 'viper-misc)
+
+(defcustom viper-emacs-state-mode-list
+ '(Custom-mode
+
+ dired-mode
+ efs-mode
+ tar-mode
+
+ browse-kill-ring-mode
+ recentf-mode
+ recentf-dialog-mode
+ occur-mode
+
+ mh-folder-mode
+ gnus-group-mode
+ gnus-summary-mode
+
+ completion-list-mode
+ help-mode
+
+ Info-mode
+ Buffer-menu-mode
+ compilation-mode
+
+ rcirc-mode
+
+ jde-javadoc-checker-report-mode
+
+ view-mode
+ vm-mode
+ vm-summary-mode)
+ "*A list of major modes that should come up in Emacs state.
+Normally, Viper would bring buffers up in Emacs state, unless the corresponding
+major mode has been placed on `viper-vi-state-mode-list' or
+`viper-insert-state-mode-list'. So, don't place a new mode on this list,
+unless it is coming up in a wrong Viper state."
+ :type '(repeat symbol)
+ :group 'viper-misc)
+
+(defcustom viper-insert-state-mode-list
+ '(internal-ange-ftp-mode
+ comint-mode
+ gud-mode
+ inferior-emacs-lisp-mode
+ erc-mode
+ eshell-mode
+ shell-mode)
+ "*A list of major modes that should come up in Vi Insert state."
+ :type '(repeat symbol)
+ :group 'viper-misc)
+
+
+;; used to set viper-major-mode-modifier-list in defcustom
+(defun viper-apply-major-mode-modifiers (&optional symbol value)
+ (if symbol
+ (set symbol value))
+ (mapcar (lambda (triple)
+ (viper-modify-major-mode
+ (nth 0 triple) (nth 1 triple) (eval (nth 2 triple))))
+ viper-major-mode-modifier-list))
+
+;; We change standard bindings in some major modes, making them slightly
+;; different than in "normal" vi/insert/emacs states
+(defcustom viper-major-mode-modifier-list
+ '((help-mode emacs-state viper-slash-and-colon-map)
+ (comint-mode insert-state viper-comint-mode-modifier-map)
+ (comint-mode vi-state viper-comint-mode-modifier-map)
+ (gud-mode insert-state viper-comint-mode-modifier-map)
+ (shell-mode insert-state viper-comint-mode-modifier-map)
+ (inferior-emacs-lisp-mode insert-state viper-comint-mode-modifier-map)
+ (shell-mode vi-state viper-comint-mode-modifier-map)
+ (ange-ftp-shell-mode insert-state viper-comint-mode-modifier-map)
+ (ange-ftp-shell-mode vi-state viper-comint-mode-modifier-map)
+ (internal-ange-ftp-mode insert-state viper-comint-mode-modifier-map)
+ (internal-ange-ftp-mode vi-state viper-comint-mode-modifier-map)
+ (dired-mode emacs-state viper-dired-modifier-map)
+ (tar-mode emacs-state viper-slash-and-colon-map)
+ (mh-folder-mode emacs-state viper-slash-and-colon-map)
+ (gnus-group-mode emacs-state viper-gnus-modifier-map)
+ (gnus-summary-mode emacs-state viper-gnus-modifier-map)
+ (Info-mode emacs-state viper-slash-and-colon-map)
+ (Buffer-menu-mode emacs-state viper-slash-and-colon-map)
+ (erc-mode insert-state viper-comint-mode-modifier-map)
+ (erc-mode vi-state viper-comint-mode-modifier-map)
+ )
+ "List specifying how to modify the various major modes to enable some Viperisms.
+The list has the structure: ((mode viper-state keymap) (mode viper-state
+keymap) ...). If `mode' is on the list, the `kemap' will be made active (on
+the minor-mode-map-alist) in the specified viper state.
+If you change this list, have to restart Emacs for the change to take effect.
+However, if you did the change through the customization widget, then Emacs
+needs to be restarted only if you deleted a triple mode-state-keymap from the
+list. No need to restart Emacs in case of insertion or modification of an
+existing triple."
+ :type '(repeat
+ (list symbol
+ (choice (const emacs-state)
+ (const vi-state)
+ (const insert-state))
+ symbol))
+ :set 'viper-apply-major-mode-modifiers
+ :group 'viper-misc)
+
+
+
+
+
+;;;###autoload
+(defun toggle-viper-mode ()
+ "Toggle Viper on/off.
+If Viper is enabled, turn it off. Otherwise, turn it on."
+ (interactive)
+ (if (eq viper-mode t)
+ (viper-go-away)
+ (setq viper-mode nil)
+ (viper-mode)))
+
+;;;###autoload
+(defun viper-mode ()
+ "Turn on Viper emulation of Vi in Emacs. See Info node `(viper)Top'."
+ (interactive)
+ (if (not noninteractive)
+ (progn
+ ;; if the user requested viper-mode explicitly
+ (if viper-mode
+ ()
+ (setq viper-mode t)
+ (load-library "viper"))
+
+ (if viper-first-time ; Important check. Prevents mix-up of startup
+ (progn ; and expert-level msgs when viper-mode recurses
+ (setq viper-first-time nil)
+ (if (not viper-inhibit-startup-message)
+ (save-window-excursion
+ (setq viper-inhibit-startup-message t)
+ (delete-other-windows)
+ (switch-to-buffer "Viper Startup Message")
+ (erase-buffer)
+ (insert
+ (substitute-command-keys
+ "Viper Is a Package for Emacs Rebels,
+a VI Plan for Emacs Rescue, and a venomous VI PERil.
+
+Incidentally, Viper emulates Vi under GNU Emacs 20 and XEmacs 20.
+It supports all of what is good in Vi and Ex, while extending
+and improving upon much of it.
+
+ 1. Viper supports Vi at several levels. Level 1 is the closest to Vi,
+ level 5 provides the most flexibility to depart from many Vi conventions.
+
+ You will be asked to specify your user level in a following screen.
+
+ If you select user level 1 then the keys ^X, ^C, ^Z, and ^G will behave
+ as in VI, to smooth transition to Viper for the beginners. However, to
+ use Emacs productively, you are advised to reach user level 3 or higher.
+
+ At user level 2 or higher, ^X and ^C have Emacs, not Vi, bindings;
+ ^Z toggles Vi/Emacs states; ^G is Emacs' keyboard-quit (like ^C in Vi).
+
+ 2. Vi exit functions (e.g., :wq, ZZ) work on INDIVIDUAL files -- they
+ do not cause Emacs to quit, except at user level 1 (for a novice).
+ 3. ^X^C EXITS EMACS.
+ 4. Viper supports multiple undo: `u' will undo. Typing `.' will repeat
+ undo. Another `u' changes direction.
+
+ 6. Emacs Meta key is `C-\\' (in all modes) or `\\ ESC' (in Vi command mode).
+ On a window system, the best way is to use the Meta-key on your keyboard.
+ 7. Try \\[keyboard-quit] and \\[abort-recursive-edit] repeatedly,if
+ something funny happens. This would abort the current editing command.
+
+For more information on Viper:
+
+ a. Type `:help' in Vi command mode
+ b. Print Viper manual, found in ./etc/viper.dvi
+ c. Print the Quick Reference, found in ./etc/viperCard.dvi
+
+To submit a bug report or to contact the author, type :submitReport in Vi
+command mode. To shoo Viper away and return to pure Emacs (horror!), type:
+
+ M-x viper-go-away
+
+This startup message appears whenever you load Viper, unless you type `y' now."
+ ))
+ (goto-char (point-min))
+ (if (y-or-n-p "Inhibit Viper startup message? ")
+ (viper-save-setting
+ 'viper-inhibit-startup-message
+ "Viper startup message inhibited"
+ viper-custom-file-name t))
+ ;;(kill-buffer (current-buffer))
+ (message
+ "The last message is in buffer `Viper Startup Message'")
+ (sit-for 4)
+ ))
+ (viper-set-expert-level 'dont-change-unless)))
+
+ (or (memq major-mode viper-emacs-state-mode-list) ; don't switch to Vi
+ (memq major-mode viper-insert-state-mode-list) ; don't switch
+ (viper-change-state-to-vi))
+ ))
+
+ (if (eq major-mode 'viper-mode)
+ (setq major-mode 'fundamental-mode))
+ )
+
+
+;; Apply a little heuristic to invoke vi state on major-modes
+;; that are not listed in viper-vi-state-mode-list
+(defun this-major-mode-requires-vi-state (mode)
+ (cond ((memq mode viper-vi-state-mode-list) t)
+ ((memq mode viper-emacs-state-mode-list) nil)
+ ((memq mode viper-insert-state-mode-list) nil)
+ (t (and (eq (key-binding "a") 'self-insert-command)
+ (eq (key-binding " ") 'self-insert-command)))))
+
+
+;; This hook designed to enable Vi-style editing in comint-based modes."
+(defun viper-comint-mode-hook ()
+ (set (make-local-variable 'require-final-newline) nil)
+ (setq viper-ex-style-editing nil
+ viper-ex-style-motion nil)
+ (viper-change-state-to-insert))
+
+
+;; remove viper hooks from SYMBOL
+(defun viper-remove-hooks (symbol)
+ (cond ((not (boundp symbol)) nil)
+ ((not (listp (eval symbol))) nil)
+ ((string-match "-hook" (symbol-name symbol))
+ (remove-hook symbol 'viper-mode)
+ (remove-hook symbol 'viper-change-state-to-emacs)
+ (remove-hook symbol 'viper-change-state-to-insert)
+ (remove-hook symbol 'viper-change-state-to-vi)
+ (remove-hook symbol 'viper-minibuffer-post-command-hook)
+ (remove-hook symbol 'viper-minibuffer-setup-sentinel)
+ (remove-hook symbol 'viper-major-mode-change-sentinel)
+ (remove-hook symbol 'set-viper-state-in-major-mode)
+ (remove-hook symbol 'viper-post-command-sentinel)
+ )))
+
+;; Remove local value in all existing buffers
+;; This doesn't delocalize vars (which would have been desirable)
+(defun viper-delocalize-var (symbol)
+ (dolist (buf (buffer-list))
+ (with-current-buffer buf
+ (kill-local-variable symbol))))
+
+
+(defun viper-go-away ()
+ "De-Viperize Emacs.
+This function tries to do as good a job as possible. However, it may undo some
+user customization, unrelated to Viper. For instance, if the user advised
+`read-file-name', `describe-key', and some others, then this advice will be
+undone.
+It also can't undo some Viper settings."
+ (interactive)
+
+ ;; restore non-viper vars
+ (setq-default
+ next-line-add-newlines
+ (viper-standard-value
+ 'next-line-add-newlines viper-saved-non-viper-variables)
+ require-final-newline
+ (viper-standard-value
+ 'require-final-newline viper-saved-non-viper-variables)
+ scroll-step
+ (viper-standard-value 'scroll-step viper-saved-non-viper-variables)
+ mode-line-buffer-identification
+ (viper-standard-value
+ 'mode-line-buffer-identification viper-saved-non-viper-variables)
+ global-mode-string
+ (delq 'viper-mode-string global-mode-string))
+
+ (setq-default major-mode
+ (viper-standard-value 'default-major-mode
+ viper-saved-non-viper-variables))
+
+ (if (featurep 'emacs)
+ (setq-default
+ mark-even-if-inactive
+ (viper-standard-value
+ 'mark-even-if-inactive viper-saved-non-viper-variables)))
+
+ ;; Ideally, we would like to be able to de-localize local variables
+ (unless
+ (and (fboundp 'add-to-ordered-list) (boundp 'emulation-mode-map-alists))
+ (viper-delocalize-var 'minor-mode-map-alist))
+ (viper-delocalize-var 'require-final-newline)
+ (if (featurep 'xemacs) (viper-delocalize-var 'bar-cursor))
+
+
+ ;; deactivate all advices done by Viper.
+ (ad-deactivate-regexp "viper-")
+
+ (setq viper-mode nil)
+
+ (when (and (fboundp 'add-to-ordered-list) (boundp 'emulation-mode-map-alists))
+ (setq emulation-mode-map-alists
+ (delq 'viper--intercept-key-maps
+ (delq 'viper--key-maps emulation-mode-map-alists))
+ ))
+
+ (viper-delocalize-var 'viper-vi-minibuffer-minor-mode)
+ (viper-delocalize-var 'viper-insert-minibuffer-minor-mode)
+ (viper-delocalize-var 'viper-vi-intercept-minor-mode)
+ (viper-delocalize-var 'viper-insert-intercept-minor-mode)
+
+ (viper-delocalize-var 'viper-vi-local-user-minor-mode)
+ (viper-delocalize-var 'viper-vi-kbd-minor-mode)
+ (viper-delocalize-var 'viper-vi-global-user-minor-mode)
+ (viper-delocalize-var 'viper-vi-state-modifier-minor-mode)
+ (viper-delocalize-var 'viper-vi-diehard-minor-mode)
+ (viper-delocalize-var 'viper-vi-basic-minor-mode)
+
+ (viper-delocalize-var 'viper-replace-minor-mode)
+
+ (viper-delocalize-var 'viper-insert-local-user-minor-mode)
+ (viper-delocalize-var 'viper-insert-kbd-minor-mode)
+ (viper-delocalize-var 'viper-insert-global-user-minor-mode)
+ (viper-delocalize-var 'viper-insert-state-modifier-minor-mode)
+ (viper-delocalize-var 'viper-insert-diehard-minor-mode)
+ (viper-delocalize-var 'viper-insert-basic-minor-mode)
+
+ (viper-delocalize-var 'viper-emacs-intercept-minor-mode)
+ (viper-delocalize-var 'viper-emacs-local-user-minor-mode)
+ (viper-delocalize-var 'viper-emacs-kbd-minor-mode)
+ (viper-delocalize-var 'viper-emacs-global-user-minor-mode)
+ (viper-delocalize-var 'viper-emacs-state-modifier-minor-mode)
+
+ (viper-delocalize-var 'viper-current-state)
+ (viper-delocalize-var 'viper-mode-string)
+
+ (setq-default viper-vi-minibuffer-minor-mode nil
+ viper-insert-minibuffer-minor-mode nil
+ viper-vi-intercept-minor-mode nil
+ viper-insert-intercept-minor-mode nil
+
+ viper-vi-local-user-minor-mode nil
+ viper-vi-kbd-minor-mode nil
+ viper-vi-global-user-minor-mode nil
+ viper-vi-state-modifier-minor-mode nil
+ viper-vi-diehard-minor-mode nil
+ viper-vi-basic-minor-mode nil
+
+ viper-replace-minor-mode nil
+
+ viper-insert-local-user-minor-mode nil
+ viper-insert-kbd-minor-mode nil
+ viper-insert-global-user-minor-mode nil
+ viper-insert-state-modifier-minor-mode nil
+ viper-insert-diehard-minor-mode nil
+ viper-insert-basic-minor-mode nil
+
+ viper-emacs-intercept-minor-mode nil
+ viper-emacs-local-user-minor-mode nil
+ viper-emacs-kbd-minor-mode nil
+ viper-emacs-global-user-minor-mode nil
+ viper-emacs-state-modifier-minor-mode nil
+
+ viper-current-state 'emacs-state
+ viper-mode-string viper-emacs-state-id
+ )
+
+ ;; remove all hooks set by viper
+ (mapatoms 'viper-remove-hooks)
+ (remove-hook 'comint-mode-hook 'viper-comint-mode-hook)
+ (remove-hook 'erc-mode-hook 'viper-comint-mode-hook)
+ (remove-hook 'change-major-mode-hook 'viper-major-mode-change-sentinel)
+
+ ;; unbind Viper mouse bindings
+ (viper-unbind-mouse-search-key)
+ (viper-unbind-mouse-insert-key)
+ ;; In emacs, we have to advice handle-switch-frame
+ ;; This advice is undone earlier, when all advices matchine "viper-" are
+ ;; deactivated.
+ (if (featurep 'xemacs)
+ (remove-hook 'mouse-leave-frame-hook 'viper-remember-current-frame))
+ ) ; end viper-go-away
+
+
+;; list of buffers that just changed their major mode
+;; used in a hack that triggers vi command mode whenever needed
+(defvar viper-new-major-mode-buffer-list nil)
+
+;; set appropriate Viper state in buffers that changed major mode
+(defun set-viper-state-in-major-mode ()
+ (mapc
+ (lambda (buf)
+ (if (viper-buffer-live-p buf)
+ (with-current-buffer buf
+ (cond ((and (this-major-mode-requires-vi-state major-mode)
+ (eq viper-current-state 'emacs-state))
+ (viper-mode))
+ ((memq major-mode viper-emacs-state-mode-list)
+ ;; not checking (eq viper-current-state 'emacs-state)
+ ;; because viper-current-state could have gotten it by
+ ;; default. We need viper-change-state-to-emacs here to have
+ ;; the keymaps take effect.
+ (viper-change-state-to-emacs))
+ ((and (memq major-mode viper-insert-state-mode-list)
+ (not (eq viper-current-state 'insert-state)))
+ (viper-change-state-to-insert))
+ )) ; with-current-buffer
+ )) ; function
+ viper-new-major-mode-buffer-list)
+ ;; clear the list of bufs that changed major mode
+ (setq viper-new-major-mode-buffer-list nil)
+ ;; change the global value of hook
+ (remove-hook 'viper-post-command-hooks 'set-viper-state-in-major-mode))
+
+;; sets up post-command-hook to turn viper-mode, if the current mode is
+;; fundamental
+(defun viper-major-mode-change-sentinel ()
+ (save-match-data
+ (or (string-match "\*Minibuf-" (buffer-name))
+ (setq viper-new-major-mode-buffer-list
+ (cons (current-buffer) viper-new-major-mode-buffer-list))))
+ ;; change the global value of hook
+ (add-hook 'viper-post-command-hooks 'set-viper-state-in-major-mode t))
+
+
+
+;; This sets major mode hooks to make them come up in vi-state.
+(defun viper-set-hooks ()
+ ;; It is of course a misnomer to call viper-mode a `major mode'.
+ ;; However, this has the effect that if the user didn't specify the
+ ;; default mode, new buffers that fall back on the default will come up
+ ;; in Fundamental Mode and Vi state.
+ ;; When viper-mode is executed in such a case, it will set the major mode
+ ;; back to fundamental-mode.
+ (if (eq (default-value 'major-mode) 'fundamental-mode)
+ (setq-default major-mode 'viper-mode))
+
+ (add-hook 'change-major-mode-hook 'viper-major-mode-change-sentinel)
+ (add-hook 'find-file-hooks 'set-viper-state-in-major-mode)
+
+ ;; keep this because many modes we don't know about use this hook
+ (defvar text-mode-hook)
+ (add-hook 'text-mode-hook 'viper-mode)
+
+ (defvar emerge-startup-hook)
+ (add-hook 'emerge-startup-hook 'viper-change-state-to-emacs)
+
+ ;; Zap bad bindings in flyspell-mouse-map, which prevent ESC from working
+ ;; over misspelled words (due to the overlay keymaps)
+ (defvar flyspell-mode-hook)
+ (add-hook 'flyspell-mode-hook
+ '(lambda ()
+ (define-key flyspell-mouse-map viper-ESC-key nil)))
+ ;; if viper is started from .emacs, it might be impossible to get certain
+ ;; info about the display and windows until emacs initialization is complete
+ ;; So do it via the window-setup-hook
+ (add-hook 'window-setup-hook
+ '(lambda ()
+ (modify-frame-parameters
+ (selected-frame)
+ (list (cons 'viper-vi-state-cursor-color
+ (viper-get-cursor-color))))
+ (setq viper-vi-state-cursor-color (viper-get-cursor-color))
+ ))
+
+ ;; Tell vc-diff to put *vc* in Vi mode
+ (eval-after-load
+ "vc"
+ '(defadvice vc-diff (after viper-vc-ad activate)
+ "Force Vi state in VC diff buffer."
+ (viper-change-state-to-vi)))
+
+ (eval-after-load
+ "emerge"
+ '(defadvice emerge-quit (after viper-emerge-advice activate)
+ "Run `viper-change-state-to-vi' after quitting emerge."
+ (viper-change-state-to-vi)))
+
+ ;; passwd.el sets up its own buffer, which turns up in Vi mode,
+ ;; thus overriding the local map. We don't need Vi mode here.
+ (eval-after-load
+ "passwd"
+ '(defadvice read-passwd-1 (before viper-passwd-ad activate)
+ "Switch to Emacs state while reading password."
+ (viper-change-state-to-emacs)))
+
+ (defadvice self-insert-command (around viper-self-insert-ad activate)
+ "Ignore all self-inserting keys in the vi-state."
+ (if (and (eq viper-current-state 'vi-state)
+ ;; Do not use called-interactively-p here. XEmacs does not have it
+ ;; and interactive-p is just fine.
+ ;; (called-interactively-p 'interactive))
+ (interactive-p))
+ (beep 1)
+ ad-do-it
+ ))
+
+ (defadvice set-cursor-color (after viper-set-cursor-color-ad activate)
+ "Change cursor color in VI state."
+ (modify-frame-parameters
+ (selected-frame)
+ (list (cons 'viper-vi-state-cursor-color (ad-get-arg 0))))
+ (setq viper-vi-state-cursor-color (ad-get-arg 0))
+ )
+
+ (when (and (fboundp 'add-to-ordered-list) (boundp 'emulation-mode-map-alists))
+ ;; needs to be as early as possible
+ (add-to-ordered-list
+ 'emulation-mode-map-alists 'viper--intercept-key-maps 100)
+ ;; needs to be after cua-mode
+ (add-to-ordered-list 'emulation-mode-map-alists 'viper--key-maps 500)
+ )
+
+ ;; Emacs shell, ange-ftp, and comint-based modes
+ (add-hook 'comint-mode-hook 'viper-comint-mode-hook) ; comint
+ (add-hook 'erc-mode-hook 'viper-comint-mode-hook) ; ERC
+
+ (add-hook 'eshell-mode-hook
+ (lambda () (setq viper-auto-indent nil)))
+
+ (viper-set-emacs-state-searchstyle-macros nil 'dired-mode) ; dired
+ (viper-set-emacs-state-searchstyle-macros nil 'tar-mode) ; tar
+ (viper-set-emacs-state-searchstyle-macros nil 'mh-folder-mode) ; mhe
+ (viper-set-emacs-state-searchstyle-macros nil 'gnus-group-mode) ; gnus
+ (viper-set-emacs-state-searchstyle-macros nil 'gnus-summary-mode)
+ (viper-set-emacs-state-searchstyle-macros nil 'Info-mode) ; info
+ (viper-set-emacs-state-searchstyle-macros nil 'Buffer-menu-mode) ;buffer-menu
+
+ ;; Modify major modes according to viper-major-mode-modifier-list
+ (viper-apply-major-mode-modifiers)
+
+ ;; For RMAIL users.
+ ;; Put buf in Emacs state after edit.
+ (eval-after-load
+ "rmailedit"
+ '(defadvice rmail-cease-edit (after viper-rmail-advice activate)
+ "Switch to Emacs state when done editing message."
+ (viper-change-state-to-emacs)))
+
+ ;; ISO accents
+ ;; Need to do it after loading iso-acc, or else this loading will wipe out
+ ;; the advice.
+ (eval-after-load
+ "iso-acc"
+ '(defadvice iso-accents-mode (around viper-iso-accents-advice activate)
+ "Set viper-automatic-iso-accents to iso-accents-mode."
+ (let ((arg (ad-get-arg 0)))
+ ad-do-it
+ (setq viper-automatic-iso-accents
+ (if (eq viper-current-state 'vi-state)
+ (if arg
+ ;; if iso-accents-mode was called with positive arg, turn
+ ;; accents on
+ (> (prefix-numeric-value arg) 0)
+ ;; else: toggle viper-automatic-iso-accents
+ (not viper-automatic-iso-accents))
+ ;; other states: accept what iso-accents-mode has done
+ iso-accents-mode))
+ ;; turn off ISO accents in vi-state
+ (if (eq viper-current-state 'vi-state)
+ (viper-set-iso-accents-mode nil))
+ (if (memq viper-current-state '(vi-state insert-state replace-state))
+ (message "Viper ISO accents mode: %s"
+ (if viper-automatic-iso-accents "on" "off")))
+ )))
+
+ ;; International input methods
+ (if (featurep 'emacs)
+ (eval-after-load "mule-cmds"
+ '(progn
+ (defadvice inactivate-input-method (after viper-mule-advice activate)
+ "Set viper-special-input-method to disable intl. input methods."
+ (viper-inactivate-input-method-action))
+ (defadvice activate-input-method (after viper-mule-advice activate)
+ "Set viper-special-input-method to enable intl. input methods."
+ (viper-activate-input-method-action))
+ ))
+ ;; XEmacs Although these hooks exist in Emacs, they don't seem to be always
+ ;; called on input-method activation/deactivation, so we the above advise
+ ;; functions instead.
+ (eval-after-load "mule-cmds"
+ '(progn
+ (add-hook 'input-method-activate-hook
+ 'viper-activate-input-method-action t)
+ (add-hook 'input-method-inactivate-hook
+ 'viper-inactivate-input-method-action t)))
+ )
+ (eval-after-load "mule-cmds"
+ '(defadvice toggle-input-method (around viper-mule-advice activate)
+ "Adjust input-method toggling in vi-state."
+ (if (and viper-special-input-method (eq viper-current-state 'vi-state))
+ (viper-inactivate-input-method)
+ ad-do-it)))
+
+ ) ; viper-set-hooks
+
+
+;; these are primarily advices and Vi-ish variable settings
+(defun viper-non-hook-settings ()
+
+ ;;;; Viper changes the default mode-line-buffer-identification
+ ;;(setq-default mode-line-buffer-identification '(" %b"))
+
+ ;; setup emacs-supported vi-style feel
+ (setq next-line-add-newlines nil
+ require-final-newline t)
+
+ ;; don't bark when mark is inactive
+ (if (featurep 'emacs)
+ (setq mark-even-if-inactive t))
+
+ (setq scroll-step 1)
+
+ ;; Variable displaying the current Viper state in the mode line.
+ (or (memq 'viper-mode-string global-mode-string)
+ (setq global-mode-string
+ (append '("" viper-mode-string) (cdr global-mode-string))))
+
+ (if (featurep 'xemacs)
+ ;; XEmacs
+ (defadvice describe-key (before viper-describe-key-ad protect activate)
+ "Force to read key via `viper-read-key-sequence'."
+ (interactive (list (viper-read-key-sequence "Describe key: "))))
+ ;; Emacs
+ (defadvice describe-key (before viper-describe-key-ad protect activate)
+ "Force to read key via `viper-read-key-sequence'."
+ (interactive (let (key)
+ (setq key (viper-read-key-sequence
+ "Describe key (or click or menu item): "))
+ (list key
+ (prefix-numeric-value current-prefix-arg)
+ ;; If KEY is a down-event, read also the
+ ;; corresponding up-event.
+ (and (vectorp key)
+ (let ((last-idx (1- (length key))))
+ (and (eventp (aref key last-idx))
+ (memq 'down (event-modifiers
+ (aref key last-idx)))))
+ (or (and (eventp (aref key 0))
+ (memq 'down (event-modifiers
+ (aref key 0)))
+ ;; For the C-down-mouse-2 popup menu,
+ ;; there is no subsequent up-event
+ (= (length key) 1))
+ (and (> (length key) 1)
+ (eventp (aref key 1))
+ (memq 'down (event-modifiers (aref key 1)))))
+ (read-event))))))
+ ) ; (if (featurep 'xemacs)
+
+ (if (featurep 'xemacs)
+ ;; XEmacs
+ (defadvice describe-key-briefly
+ (before viper-describe-key-briefly-ad protect activate)
+ "Force to read key via `viper-read-key-sequence'."
+ (interactive (list (viper-read-key-sequence "Describe key briefly: "))))
+ ;; Emacs
+ (defadvice describe-key-briefly
+ (before viper-describe-key-briefly-ad protect activate)
+ "Force to read key via `viper-read-key-sequence'."
+ (interactive (let (key)
+ (setq key (viper-read-key-sequence
+ "Describe key (or click or menu item): "))
+ ;; If KEY is a down-event, read and discard the
+ ;; corresponding up-event.
+ (and (vectorp key)
+ (let ((last-idx (1- (length key))))
+ (and (eventp (aref key last-idx))
+ (memq 'down (event-modifiers (aref key last-idx)))))
+ (read-event))
+ (list key
+ (if current-prefix-arg
+ (prefix-numeric-value current-prefix-arg))
+ 1))))
+ ) ; (if (featurep 'xemacs)
+
+ (defadvice find-file (before viper-add-suffix-advice activate)
+ "Use `read-file-name' for reading arguments."
+ (interactive (cons (read-file-name "Find file: " nil default-directory)
+ ;; XEmacs: if Mule & prefix arg, ask for coding system
+ (cond ((and (featurep 'xemacs) (featurep 'mule))
+ (list
+ (and current-prefix-arg
+ (read-coding-system "Coding-system: "))))
+ ;; Emacs: do wildcards
+ ((and (featurep 'emacs) (boundp 'find-file-wildcards))
+ (list find-file-wildcards))))
+ ))
+
+ (defadvice find-file-other-window (before viper-add-suffix-advice activate)
+ "Use `read-file-name' for reading arguments."
+ (interactive (cons (read-file-name "Find file in other window: "
+ nil default-directory)
+ ;; XEmacs: if Mule & prefix arg, ask for coding system
+ (cond ((and (featurep 'xemacs) (featurep 'mule))
+ (list
+ (and current-prefix-arg
+ (read-coding-system "Coding-system: "))))
+ ;; Emacs: do wildcards
+ ((and (featurep 'emacs) (boundp 'find-file-wildcards))
+ (list find-file-wildcards))))
+ ))
+
+
+ (defadvice find-file-other-frame (before viper-add-suffix-advice activate)
+ "Use `read-file-name' for reading arguments."
+ (interactive (cons (read-file-name "Find file in other frame: "
+ nil default-directory)
+ ;; XEmacs: if Mule & prefix arg, ask for coding system
+ (cond ((and (featurep 'xemacs) (featurep 'mule))
+ (list
+ (and current-prefix-arg
+ (read-coding-system "Coding-system: "))))
+ ;; Emacs: do wildcards
+ ((and (featurep 'emacs) (boundp 'find-file-wildcards))
+ (list find-file-wildcards))))
+ ))
+
+
+ (defadvice read-file-name (around viper-suffix-advice activate)
+ "Tell `exit-minibuffer' to run `viper-file-add-suffix' as a hook."
+ (let ((viper-minibuffer-exit-hook
+ (append viper-minibuffer-exit-hook
+ '(viper-minibuffer-trim-tail viper-file-add-suffix))))
+ ad-do-it))
+
+ (defadvice start-kbd-macro (after viper-kbd-advice activate)
+ "Remove Viper's intercepting bindings for C-x ).
+ This may be needed if the previous `:map' command terminated abnormally."
+ (define-key viper-vi-intercept-map "\C-x)" nil)
+ (define-key viper-insert-intercept-map "\C-x)" nil)
+ (define-key viper-emacs-intercept-map "\C-x)" nil))
+
+ (defadvice add-minor-mode (after
+ viper-advice-add-minor-mode
+ (toggle name &optional keymap after toggle-fun)
+ activate)
+ "Run viper-normalize-minor-mode-map-alist after adding a minor mode."
+ (viper-normalize-minor-mode-map-alist)
+ (unless
+ (and (fboundp 'add-to-ordered-list) (boundp 'emulation-mode-map-alists))
+ (setq-default minor-mode-map-alist minor-mode-map-alist)))
+
+ ;; catch frame switching event
+ (if (viper-window-display-p)
+ (if (featurep 'xemacs)
+ (add-hook 'mouse-leave-frame-hook
+ 'viper-remember-current-frame)
+ (defadvice handle-switch-frame (before viper-frame-advice activate)
+ "Remember the selected frame before the switch-frame event."
+ (viper-remember-current-frame (selected-frame)))) )
+
+ ) ; end viper-non-hook-settings
+
+
+
+;; Ask only if this-command/last-command are nil, i.e., when loading
+(cond ((and (eq viper-mode 'ask) (null this-command) (null last-command))
+ (save-window-excursion
+ (with-output-to-temp-buffer " *viper-info*"
+ (princ "
+You have loaded Viper, and are about to Viperize your Emacs!
+
+Viper is a Package for Emacs Rebels and a venomous VI PERil,
+
+It's time to decide: to Viperize or not to Viperize...
+
+If you wish to Viperize AND make this your way of life, please put
+
+ (setq viper-mode t)
+ (require 'viper)
+
+in your .emacs file (preferably, close to the top).
+These two lines must come in the order given.
+
+** Viper users:
+ **** The startup file name has been changed from .vip to .viper
+ **** All vip-* style names have been converted to viper-* style."))
+ (if (y-or-n-p "Viperize? ")
+ (setq viper-mode t)
+ (setq viper-mode nil))
+ (message "")
+ (kill-buffer " *viper-info*")))
+
+ ;; If viper-mode is t, then just continue. Viper will kick in.
+ ((eq viper-mode t))
+ ;; Otherwise, it was asking Viper was not loaded through .emacs
+ ;; In this case, it was either through M-x viper-mode or via something
+ ;; else, like the custom widget. If Viper was loaded through
+ ;; M-x viper-mode, then viper will kick in anyway.
+ (t (setq viper-mode nil)))
+
+(defun viper-load-custom-file ()
+ (if (and (file-exists-p viper-custom-file-name)
+ (not noninteractive))
+ (load viper-custom-file-name)))
+
+
+
+
+
+
+;; save non-viper vars that Viper might change
+(if (null viper-saved-non-viper-variables)
+ (setq viper-saved-non-viper-variables
+ (list
+ (cons 'default-major-mode (list (default-value 'major-mode)))
+ (cons 'next-line-add-newlines (list next-line-add-newlines))
+ (cons 'require-final-newline (list require-final-newline))
+ (cons 'scroll-step (list scroll-step))
+ (cons 'mode-line-buffer-identification
+ (list (default-value 'mode-line-buffer-identification)))
+ (cons 'global-mode-string (list global-mode-string))
+ (if (featurep 'emacs)
+ (cons 'mark-even-if-inactive (list mark-even-if-inactive)))
+ )))
+
+
+;; Set some useful macros, advices
+;; These must be BEFORE ~/.viper is loaded,
+;; so the user can unrecord them in ~/.viper.
+(if viper-mode
+ (progn
+ ;; set advices and some variables that give emacs Vi look.
+ (viper-non-hook-settings)
+
+ ;; repeat the 2nd previous command without rotating the command history
+ (viper-record-kbd-macro
+ (vector viper-repeat-from-history-key '\1) 'vi-state
+ [(meta x) v i p e r - r e p e a t - f r o m - h i s t o r y return] 't)
+ ;; repeat the 3d previous command without rotating the command history
+ (viper-record-kbd-macro
+ (vector viper-repeat-from-history-key '\2) 'vi-state
+ [(meta x) v i p e r - r e p e a t - f r o m - h i s t o r y return] 't)
+
+ ;; set macros for toggling case sensitivity and regexp search
+ (viper-set-searchstyle-toggling-macros nil)
+ ;; Make %%% toggle parsing comments for matching parentheses
+ (viper-set-parsing-style-toggling-macro nil)
+
+ ;; ~/.viper is loaded if exists
+ (viper-load-custom-file)
+
+ ;; should be after loading custom file to avoid the pesky msg that
+ ;; mouse-search/insert keys are already bound
+ (viper-bind-mouse-search-key)
+ (viper-bind-mouse-insert-key)
+ ))
+
+
+
+;; Applying Viper customization -- runs after (load .viper)
+
+;; Save user settings or Viper defaults for vars controlled by
+;; viper-expert-level
+(if (null viper-saved-user-settings)
+ (setq viper-saved-user-settings
+ (list (cons 'viper-want-ctl-h-help (list viper-want-ctl-h-help))
+ (cons 'viper-always (list viper-always))
+ (cons 'viper-no-multiple-ESC (list viper-no-multiple-ESC))
+ (cons 'viper-ex-style-motion (list viper-ex-style-motion))
+ (cons 'viper-ex-style-editing
+ (list viper-ex-style-editing))
+ (cons 'viper-want-emacs-keys-in-vi
+ (list viper-want-emacs-keys-in-vi))
+ (cons 'viper-electric-mode (list viper-electric-mode))
+ (cons 'viper-want-emacs-keys-in-insert
+ (list viper-want-emacs-keys-in-insert))
+ (cons 'viper-re-search (list viper-re-search)))))
+
+
+(if viper-mode
+ (progn
+ (viper-set-minibuffer-style)
+ (if viper-buffer-search-char
+ (viper-buffer-search-enable))
+ (viper-update-syntax-classes 'set-default)
+ ))
+
+
+;;; Familiarize Viper with some minor modes that have their own keymaps
+(if viper-mode
+ (progn
+ (viper-harness-minor-mode "compile")
+ (viper-harness-minor-mode "outline")
+ (viper-harness-minor-mode "allout")
+ (viper-harness-minor-mode "xref")
+ (viper-harness-minor-mode "lmenu")
+ (viper-harness-minor-mode "vc")
+ (viper-harness-minor-mode "ltx-math") ; LaTeX-math-mode in AUC-TeX, which
+ (viper-harness-minor-mode "latex") ; sits in one of these two files
+ (viper-harness-minor-mode "cyrillic")
+ (viper-harness-minor-mode "russian")
+ (viper-harness-minor-mode "view-less")
+ (viper-harness-minor-mode "view")
+ (viper-harness-minor-mode "reftex")
+ (viper-harness-minor-mode "flyspell")
+ ))
+
+
+;; Intercept maps could go in viper-keym.el
+;; We keep them here in case someone redefines them in ~/.viper
+
+(define-key viper-vi-intercept-map viper-ESC-key 'viper-intercept-ESC-key)
+(define-key viper-insert-intercept-map viper-ESC-key 'viper-intercept-ESC-key)
+
+;; This is taken care of by viper-insert-global-user-map.
+;;(define-key viper-replace-map viper-ESC-key 'viper-intercept-ESC-key)
+
+
+;; The default viper-toggle-key is \C-z; for the novice, it suspends or
+;; iconifies Emacs
+(define-key viper-vi-intercept-map viper-toggle-key 'viper-toggle-key-action)
+(define-key
+ viper-emacs-intercept-map viper-toggle-key 'viper-change-state-to-vi)
+
+;;; Removed to avoid bad interaction with cua-mode.
+;;; Escape from Emacs and Insert modes to Vi for one command
+;;(define-key viper-emacs-intercept-map "\C-c\\" 'viper-escape-to-vi)
+;;(define-key viper-insert-intercept-map "\C-c\\" 'viper-escape-to-vi)
+
+(if viper-mode
+ (setq-default viper-emacs-intercept-minor-mode t
+ viper-emacs-local-user-minor-mode t
+ viper-emacs-global-user-minor-mode t
+ viper-emacs-kbd-minor-mode t
+ viper-emacs-state-modifier-minor-mode t))
+(if (and viper-mode (eq viper-current-state 'emacs-state))
+ (setq viper-emacs-intercept-minor-mode t
+ viper-emacs-local-user-minor-mode t
+ viper-emacs-global-user-minor-mode t
+ viper-emacs-kbd-minor-mode t
+ viper-emacs-state-modifier-minor-mode t))
+
+
+(if (and viper-mode
+ (or viper-always
+ (and (< viper-expert-level 5) (> viper-expert-level 0))))
+ (viper-set-hooks))
+
+;; Let all minor modes take effect after loading.
+;; This may not be enough, so we also set default minor-mode-alist.
+;; Without setting the default, new buffers that come up in emacs mode have
+;; minor-mode-map-alist = nil, unless we call viper-change-state-*
+(if (and viper-mode (eq viper-current-state 'emacs-state))
+ (progn
+ (viper-change-state-to-emacs)
+ (unless
+ (and (fboundp 'add-to-ordered-list)
+ (boundp 'emulation-mode-map-alists))
+ (setq-default minor-mode-map-alist minor-mode-map-alist))
+ ))
+
+(if (and viper-mode (this-major-mode-requires-vi-state major-mode))
+ (viper-mode))
+
+(if viper-mode
+ (setq initial-major-mode
+ `(lambda ()
+ (funcall (quote ,initial-major-mode))
+ (set-viper-state-in-major-mode))
+ ))
+
+
+
+(run-hooks 'viper-load-hook) ; the last chance to change something
+
+(provide 'viper)
+
+
+;; Local Variables:
+;; eval: (put 'viper-deflocalvar 'lisp-indent-hook 'defun)
+;; End:
+
+;; arch-tag: 5f3e844c-c4e6-4bbd-9b73-63bdc14e7d79
+;;; viper.el ends here