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5609 lines
188 KiB
EmacsLisp
5609 lines
188 KiB
EmacsLisp
;;; viper.el --- A full-featured Vi emulator for GNU Emacs 19 and XEmacs 19,
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;; a VI Plan for Emacs Rescue,
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;; and a venomous VI PERil.
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;; Viper Is also a Package for Emacs Rebels.
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;;
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;; Keywords: emulations
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;; Author: Michael Kifer <kifer@cs.sunysb.edu>
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(defconst viper-version "2.85 of February 14, 1996"
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"The current version of Viper")
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;; Copyright (C) 1994, 1995 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
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;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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;;; Commentary:
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;; Viper is a full-featured Vi emulator for Emacs 19. It emulates and
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;; improves upon the standard features of Vi and, at the same time, allows
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;; full access to all Emacs facilities. Viper supports multiple undo,
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;; file name completion, command, file, and search history and it extends
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;; Vi in many other ways. Viper is highly customizable through the various
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;; hooks, user variables, and keymaps. It is implemented as a collection
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;; of minor modes and it is designed to provide full access to all Emacs
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;; major and minor modes.
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;;
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;;; History
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;;
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;; Viper is a new name for a package formerly known as VIP-19,
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;; which was a successor of VIP version 3.5 by Masahiko Sato
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;; <ms@sail.stanford.edu> and VIP version 4.2 by Aamod Sane
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;; <sane@cs.uiuc.edu>. Some ideas from vip 4.4.2 by Aamod Sane
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;; were also shamelessly plagiarized.
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;;
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;; Viper maintains some degree of compatibility with these older
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;; packages. See the documentation for customization.
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;;
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;; The main difference between Viper and these older packages are:
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;;
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;; 1. Viper emulates Vi at several levels, from almost complete conformity
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;; to a rather loose Vi-compliance.
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;;
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;; 2. Viper provides full access to all major and minor modes of Emacs
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;; without the need to type extra keys.
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;; The older versions of VIP (and other Vi emulators) do not work with
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;; some major and minor modes.
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;;
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;; 3. Viper supports vi-style undo.
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;;
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;; 4. Viper fully emulates (and improves upon) vi's replacement mode.
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;;
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;; 5. Viper has a better interface to ex, including command, variable, and
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;; file name completion.
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;;
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;; 6. Viper uses native Emacs history and completion features; it doesn't
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;; rely on other packages (such as gmhist.el and completer.el) to provide
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;; these features.
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;;
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;; 7. Viper supports Vi-style editing in the minibuffer, by allowing the
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;; user to switch from Insert state to Vi state to Replace state, etc.
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;;
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;; 8. Viper keeps history of recently inserted pieces of text and recently
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;; executed Vi-style destructive commands, such as `i', `d', etc.
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;; These pieces of text can be inserted in later insertion commands;
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;; the previous destructive commands can be re-executed.
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;;
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;; 9. Viper has Vi-style keyboard macros, which enhances the similar
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;; facility in the original Vi.
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;; First, one can execute any Emacs command while defining a
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;; macro, not just the Vi commands. Second, macros are defined in a
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;; WYSYWYG mode, using an interface to Emacs' WYSIWYG style of defining
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;; macros. Third, in Viper, one can define macros that are specific to
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;; a given buffer, a given major mode, or macros defined for all buffers.
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;; The same macro name can have several different definitions:
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;; one global, several definitions for various major modes, and
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;; definitions for specific buffers.
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;; Bffer-specific definitions override mode-specific
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;; definitions, which, in turn, override global definitions.
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;;
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;;
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;;; Installation:
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;; -------------
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;;
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;; (require 'viper)
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;;
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;;; Acknowledgements:
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;; -----------------
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;; Bug reports and ideas contributed by the following users
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;; have helped improve Viper and the various versions of VIP.
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;; See the on-line manual for a complete list of contributors.
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;;
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;;
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;;; Notes:
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;;
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;; 1. Major modes.
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;; In most cases, Viper handles major modes correctly, i.e., they come up
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;; in the right state (either vi-state or emacs-state). For instance, text
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;; files come up in vi-state, while, say, Dired appears in emacs-state by
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;; default.
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;; However, some modes do not appear in the right mode in the beginning,
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;; usually because they neglect to follow Emacs conventions (e.g., they don't
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;; use kill-all-local-variables when they start). Some major modes
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;; may fail to come up in emacs-state if they call hooks, such as
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;; text-hook, for no good reason.
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;;
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;; As an immediate solution, you can hit C-z to bring about the right mode.
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;; An interim solution is to add an appropriate hook to the mode like this:
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;;
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;; (add-hook 'your-favorite-mode 'viper-mode)
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;; or
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;; (add-hook 'your-favorite-mode 'vip-change-state-to-emacs)
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;;
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;; whichever applies. The right thing to do, however, is to complain to the
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;; author of the respective package. (Sometimes they also neglect to equip
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;; their modes with hooks, which is one more reason for complaining.)
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;;
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;; 2. Keymap handling
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;; Because Emacs 19 has an elegant mechanism for turning minor mode keymaps
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;; on and off, implementation of Viper has been greatly simplified. Viper
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;; has several minor modes.
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;;
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;; Viper's Vi state consists of seven minor modes:
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;;
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;; vip-vi-intercept-minor-mode
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;; vip-vi-local-user-minor-mode
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;; vip-vi-global-user-minor-mode
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;; vip-vi-kbd-minor-mode
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;; vip-vi-state-modifier-minor-mode
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;; vip-vi-diehard-minor-mode
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;; vip-vi-basic-minor-mode
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;;
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;; Bindings done to the keymap of the first mode overshadow those done to
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;; the second, which, in turn, overshadows those done to the third, etc.
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;;
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;; The last vip-vi-basic-minor-mode contains most of the usual Vi bindings
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;; in its edit mode. This mode provides access to all Emacs facilities.
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;; Novice users, however, may want to set their vip-expert-level to 1
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;; in their .vip file. This will enable vip-vi-diehard-minor-mode. This
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;; minor mode's bindings make Viper simulate the usual Vi very closely.
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;; For instance, C-c will not have its standard Emacs binding
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;; and so many of the goodies of Emacs are not available.
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;;
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;; An skilled user, should set vip-expert-level to at least 3. This will
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;; enable ;; C-c and many Emacs facilities will become available.
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;; In this case, vip-vi-diehard-minor-mode is inactive.
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;;
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;; Viper gurus should have at least
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;; (setq vip-expert-level 4)
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;; in their ~/.vip files. This will unsuppress all Emacs keys that are not
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;; essential for VI-style editing.
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;; Pick-and-choose users may want to put
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;; (setq vip-expert-level 5)
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;; in ~/.vip. Viper will then leave it up to the user to set the variables
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;; vip-want-* See vip-set-expert-level for details.
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;;
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;; The very first minor mode, vip-vi-intercept-minor-mode, is of no
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;; concern for the user. It is needed to bind Viper's vital keys, such as
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;; ESC and C-z.
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;;
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;; The second mode, vip-vi-local-user-minor-mode, usually has an
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;; empty keymap. However, the user can set bindings in this keymap, which
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;; will overshadow the corresponding bindings in the other two minor
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;; modes. This is useful, for example, for setting up ZZ in gnus,
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;; rmail, mh-e, etc., to send message instead of saving it in a file.
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;; Likewise, in Dired mode, you may want to bind ZN and ZP to commands
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;; that would visit the next or the previous file in the Dired buffer.
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;; Setting local keys is tricky, so don't do it directly. Instead, use
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;; vip-add-local-keys function (see its doc).
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;;
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;; The third minor mode, vip-vi-global-user-minor-mode, is also intended
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;; for the users but, unlike vip-vi-local-user-minor-mode, its key
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;; bindings are seen in all Viper buffers. This mode keys can be done
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;; with define-key command.
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;;
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;; The fourth minor mode, vip-vi-kbd-minor-mode, is used by keyboard
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;; macros. Users are NOT supposed to modify this keymap directly.
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;;
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;; The fifth mode, vip-vi-state-modifier-minor-mode, can be used to set
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;; key bindings that are visible in some major modes but not in others.
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;;
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;; Users are allowed to modify keymaps that belong to
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;; vip-vi-local-user-minor-mode, vip-vi-global-user-minor-mode,
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;; and vip-vi-state-modifier-minor-mode only.
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;;
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;; Viper's Insert state also has seven minor modes:
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;;
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;; vip-insert-intercept-minor-mode
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;; vip-insert-local-user-minor-mode
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;; vip-insert-global-user-minor-mode
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;; vip-insert-kbd-minor-mode
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;; vip-insert-state-modifier-minor-mode
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;; vip-insert-diehard-minor-mode
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;; vip-insert-basic-minor-mode
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;;
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;; As with VI's editing modes, the first mode, vip-insert-intercept-minor-mode
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;; is used to bind vital keys that are not to be changed by the user.
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;;
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;; The next mode, vip-insert-local-user-minor-mode, is used to customize
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;; bindings in the insert state of Viper. The third mode,
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;; vip-insert-global-user-minor-mode is like
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;; vip-insert-local-user-minor-mode, except that its bindings are seen in
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;; all Viper buffers. As with vip-vi-local-user-minor-mode, its bindings
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;; should be done via the function vip-add-local-keys. Bindings for
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;; vip-insert-global-user-minor-mode can be set with the define-key command.
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;;
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;; The next minor mode, vip-insert-kbd-minor-mode,
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;; is used for keyboard VI-style macros defined with :map!.
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;;
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;; The fifth minor mode, vip-insert-state-modifier-minor-mode, is like
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;; vip-vi-state-modifier-minor-mode, except that it is used in the Insert
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;; state; it can be used to modify keys in a mode-specific fashion.
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;;
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;; The minor mode vip-insert-diehard-minor-mode is in effect when
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;; the user wants a high degree of Vi compatibility (a bad idea, really!).
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;; The last minor mode, vip-insert-basic-minor-mode, is always in effect
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;; when Viper is in insert state. It binds a small number of keys needed for
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;; Viper's operation.
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;;
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;; Finally, Viper provides minor modes for overriding bindings set by Emacs
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;; modes when Viper is in Emacs state:
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;;
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;; vip-emacs-local-user-minor-mode
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;; vip-emacs-global-user-minor-mode
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;; vip-emacs-kbd-minor-mode
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;; vip-emacs-state-modifier-minor-mode
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;;
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;; These minor modes are in effect when Viper is in Emacs state. The keymap
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;; associated with vip-emacs-global-user-minor-mode,
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;; vip-emacs-global-user-map, overrides the global and local keymaps as
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;; well as the minor mode keymaps set by other modes. The keymap of
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;; vip-emacs-local-user-minor-mode, vip-emacs-local-user-map, overrides
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;; everything, but it is used on a per buffer basis.
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;; The keymap associated with vip-emacs-state-modifier-minor-mode
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;; overrides keys on a per-major-mode basis. The mode
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;; vip-emacs-kbd-minor-mode is used to define Vi-style macros in Emacs
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;; state.
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;;
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;; 3. There is also one minor mode that is used when Viper is in its
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;; replace-state (used for commands like cw, C, etc.). This mode is
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;; called
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;;
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;; vip-replace-minor-mode
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;;
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;; and its keymap is vip-replace-map. Replace minor mode is always
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;; used in conjunction with the minor modes for insert-state, and its
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;; keymap overshadows the keymaps for insert minor modes.
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;;
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;; 4. Defining buffer-local bindings in Vi and Insert modes.
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;; As mentioned before, sometimes, it is convenient to have
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;; buffer-specific of mode-specific key bindings in Vi and insert modes.
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;; Viper provides a special function, vip-add-local-keys, to do precisely
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;; this. For instance, is you need to add couple of mode-specific bindings
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;; to Insert mode, you can put
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;;
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;; (vip-add-local-keys 'insert-state '((key1 . func1) (key2 .func2)))
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;;
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;; somewhere in a hook of this major mode. If you put something like this
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;; in your own elisp function, this will define bindings specific to the
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;; buffer that was current at the time of the call to vip-add-local-keys.
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;; The only thing to make sure here is that the major mode of this buffer
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;; is written according to Emacs conventions, which includes a call to
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;; (kill-all-local-variables). See vip-add-local-keys for more details.
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;;
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;;
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;; TO DO (volunteers?):
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;;
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;; 1. Some of the code that is inherited from VIP-3.5 is rather
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;; convoluted. Instead of vip-command-argument, keymaps should bind the
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;; actual commands. E.g., "dw" should be bound to a generic command
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;; vip-delete that will delete things based on the value of
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;; last-command-char. This would greatly simplify the logic and the code.
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;;
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;; 2. Somebody should venture to write a customization package a la
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;; options.el that would allow the user to change values of variables
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;; that meet certain specs (e.g., match a regexp) and whose doc string
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;; starts with a '*'. Then, the user should be offered to save
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;; variables that were changed. This will make user's customization job
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;; much easier.
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;;
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(require 'advice)
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(require 'cl)
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(require 'ring)
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(require 'viper-util)
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;;; Variables
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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 vip-first-time t)
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(defvar vip-expert-level 0
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"User's expert level.
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The minor mode vip-vi-diehard-minor-mode is in effect when
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vip-expert-level is 1 or 2 or when vip-want-emacs-keys-in-vi is t.
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The minor mode vip-insert-diehard-minor-mode is in effect when
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vip-expert-level is 1 or 2 or if vip-want-emacs-keys-in-insert is t.
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Use `M-x vip-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 vip-max-expert-level 5)
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;; Contains user settings for vars affected by vip-set-expert-level function.
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;; Not a user option.
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(defvar vip-saved-user-settings nil)
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;;; Viper minor modes
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;; This is not local in Emacs, so we make it local.
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(make-variable-buffer-local 'minor-mode-map-alist)
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;; Mode for vital things like \e, C-z.
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(vip-deflocalvar vip-vi-intercept-minor-mode nil)
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(vip-deflocalvar vip-vi-basic-minor-mode nil
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"Viper's minor mode for Vi bindings.")
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(vip-deflocalvar vip-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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(vip-deflocalvar vip-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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(vip-deflocalvar vip-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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(vip-deflocalvar vip-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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(vip-deflocalvar vip-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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(vip-deflocalvar vip-insert-intercept-minor-mode nil)
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(vip-deflocalvar vip-insert-basic-minor-mode nil
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"Viper's minor mode for bindings in Insert mode.")
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(vip-deflocalvar vip-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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(vip-deflocalvar vip-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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(vip-deflocalvar vip-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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||
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(vip-deflocalvar vip-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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(vip-deflocalvar vip-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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||
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(vip-deflocalvar vip-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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||
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;; Mode for vital things like \C-z and \C-x)
|
||
;; This is t, by default. So, any new buffer will have C-z defined as
|
||
;; switch to Vi, unless we switched states in this buffer
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(vip-deflocalvar vip-emacs-intercept-minor-mode t)
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||
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(vip-deflocalvar vip-emacs-local-user-minor-mode t
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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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||
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(vip-deflocalvar vip-emacs-global-user-minor-mode t
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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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||
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(vip-deflocalvar vip-emacs-kbd-minor-mode t
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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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`vip-record-kbd-macro' command. There is no Ex-level command to do this
|
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interactively.")
|
||
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(vip-deflocalvar vip-emacs-state-modifier-minor-mode t
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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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;;; ISO characters
|
||
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(vip-deflocalvar vip-automatic-iso-accents nil
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"*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
|
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insert/emacs/vi state hooks.")
|
||
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||
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;;; Emacs keys in other states.
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||
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||
(defvar vip-want-emacs-keys-in-insert t
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"*Set to nil if you want complete Vi compatibility in insert mode.
|
||
Complete compatibility with Vi is not recommended for power use of Viper.")
|
||
|
||
(defvar vip-want-emacs-keys-in-vi t
|
||
"*Set to nil if you want complete Vi compatibility in Vi mode.
|
||
Full Vi compatibility is not recommended for power use of Viper.")
|
||
|
||
|
||
|
||
;; VI-style Undo
|
||
|
||
;; Used to 'undo' complex commands, such as replace and insert commands.
|
||
(vip-deflocalvar vip-undo-needs-adjustment nil)
|
||
(put 'vip-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 vip-change-state-to-vi and vip-repeat.
|
||
(defconst vip-buffer-undo-list-mark 'viper)
|
||
|
||
(defvar vip-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.")
|
||
|
||
;; Replace mode and changing text
|
||
|
||
;; Viper's own after/before change functions, which get vip-add-hook'ed to
|
||
;; Emacs's
|
||
(vip-deflocalvar vip-after-change-functions nil "")
|
||
(vip-deflocalvar vip-before-change-functions nil "")
|
||
(vip-deflocalvar vip-post-command-hooks nil "")
|
||
(vip-deflocalvar vip-pre-command-hooks nil "")
|
||
|
||
;; Can be used to pass global states around for short period of time
|
||
(vip-deflocalvar vip-intermediate-command nil "")
|
||
|
||
;; Indicates that the current destructive command has started in replace mode.
|
||
(vip-deflocalvar vip-began-as-replace nil "")
|
||
|
||
(defvar vip-replace-overlay-cursor-color "Red"
|
||
"*Cursor color to use in Replace state")
|
||
|
||
|
||
(vip-deflocalvar vip-replace-overlay nil "")
|
||
(put 'vip-replace-overlay 'permanent-local t)
|
||
|
||
(if (vip-has-face-support-p)
|
||
(progn
|
||
(make-face 'vip-replace-overlay-face)
|
||
(vip-hide-face 'vip-replace-overlay-face)
|
||
(or (face-differs-from-default-p 'vip-replace-overlay-face)
|
||
(progn
|
||
(if (vip-can-use-colors "darkseagreen2" "Black")
|
||
(progn
|
||
(set-face-background
|
||
'vip-replace-overlay-face "darkseagreen2")
|
||
(set-face-foreground 'vip-replace-overlay-face "Black")))
|
||
(set-face-underline-p 'vip-replace-overlay-face t))
|
||
)))
|
||
|
||
(defvar vip-replace-overlay-face 'vip-replace-overlay-face
|
||
"*Face for highlighting replace regions on a window display.")
|
||
|
||
(defvar vip-replace-region-end-delimiter "$"
|
||
"A string marking the end of replacement regions.
|
||
It is used only with TTYs or if `vip-use-replace-region-delimiters'
|
||
is non-nil.")
|
||
(defvar vip-replace-region-start-delimiter ""
|
||
"A string marking the beginning of replacement regions.
|
||
It is used only with TTYs or if `vip-use-replace-region-delimiters'
|
||
is non-nil.")
|
||
(defvar vip-use-replace-region-delimiters
|
||
(or (not (vip-has-face-support-p)) (not (vip-color-display-p)))
|
||
"*If non-nil, Viper will always use `vip-replace-region-end-delimiter' and
|
||
`vip-replace-region-start-delimiter' to delimit replacement regions, even on
|
||
color displays. By default, the delimiters are used only on TTYs or
|
||
monochrome displays.")
|
||
|
||
;; XEmacs requires glyphs
|
||
(if vip-xemacs-p
|
||
(progn
|
||
(or (glyphp vip-replace-region-end-delimiter)
|
||
(setq vip-replace-region-end-delimiter
|
||
(make-glyph vip-replace-region-end-delimiter)))
|
||
(or (glyphp vip-replace-region-start-delimiter)
|
||
(setq vip-replace-region-start-delimiter
|
||
(make-glyph vip-replace-region-start-delimiter)))
|
||
))
|
||
|
||
|
||
;; These are local marker that must be initialized to nil and moved with
|
||
;; `vip-move-marker-locally'
|
||
;;
|
||
;; Remember the last position inside the replace region.
|
||
(vip-deflocalvar vip-last-posn-in-replace-region nil)
|
||
;; Remember the last position while inserting
|
||
(vip-deflocalvar vip-last-posn-while-in-insert-state nil)
|
||
(put 'vip-last-posn-in-replace-region 'permanent-local t)
|
||
(put 'vip-last-posn-while-in-insert-state 'permanent-local t)
|
||
|
||
(vip-deflocalvar vip-sitting-in-replace nil "")
|
||
(put 'vip-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.
|
||
(vip-deflocalvar vip-replace-chars-to-delete 0 "")
|
||
(vip-deflocalvar vip-replace-chars-deleted 0 "")
|
||
|
||
;; Insertion ring and command ring
|
||
(defvar vip-insertion-ring-size 14
|
||
"The size of the insertion ring.")
|
||
;; The insertion ring.
|
||
(defvar vip-insertion-ring nil)
|
||
;; This is temp insertion ring. Used to do rotation for display purposes.
|
||
;; When rotation just started, it is initialized to vip-insertion-ring.
|
||
(defvar vip-temp-insertion-ring nil)
|
||
(defvar vip-last-inserted-string-from-insertion-ring "")
|
||
|
||
(defvar vip-command-ring-size 14
|
||
"The size of the command ring.")
|
||
;; The command ring.
|
||
(defvar vip-command-ring nil)
|
||
;; This is temp command ring. Used to do rotation for display purposes.
|
||
;; When rotation just started, it is initialized to vip-command-ring.
|
||
(defvar vip-temp-command-ring nil)
|
||
|
||
;; Modes and related variables
|
||
|
||
;; Current mode. One of: `emacs-state', `vi-state', `insert-state'
|
||
(vip-deflocalvar vip-current-state 'emacs-state)
|
||
|
||
|
||
(defvar vip-toggle-key "\C-z"
|
||
"The key used to change states from emacs to Vi and back.
|
||
In insert mode, this key also functions as Meta.
|
||
Must be set in .vip file or prior to loading Viper.
|
||
This setting cannot be changed interactively.")
|
||
|
||
(defvar vip-ESC-key "\e"
|
||
"Key used to ESC.
|
||
Must be set in .vip file or prior to loading Viper.
|
||
This setting cannot be changed interactively.")
|
||
|
||
(defvar vip-no-multiple-ESC t
|
||
"*If true, multiple ESC in Vi mode will cause bell to ring.
|
||
\_ is then mapped to Meta.
|
||
This is set to t on a windowing terminal and to 'twice on a dumb
|
||
terminal (unless the user level is 1, 2, or 5). On a dumb terminal, this
|
||
enables cursor keys and is generally more convenient, as terminals usually
|
||
don't have a convenient Meta key.
|
||
Setting vip-no-multiple-ESC to nil will allow as many multiple ESC,
|
||
as is allowed by the major mode in effect.")
|
||
|
||
|
||
(defvar vip-want-ctl-h-help nil
|
||
"*If t then C-h is bound to help-command in insert mode, if nil then it is
|
||
bound to delete-backward-char.")
|
||
|
||
;; Autoindent in insert
|
||
|
||
;; Variable that keeps track of whether C-t has been pressed.
|
||
(vip-deflocalvar vip-cted nil "")
|
||
|
||
;; Preserve the indent value, used by C-d in insert mode.
|
||
(vip-deflocalvar vip-current-indent 0)
|
||
|
||
;; Whether to preserve the indent, used by C-d in insert mode.
|
||
(vip-deflocalvar vip-preserve-indent nil)
|
||
|
||
(vip-deflocalvar vip-auto-indent nil
|
||
"*Autoindent if t.")
|
||
(vip-deflocalvar vip-electric-mode t
|
||
"*If t, enable electric behavior.
|
||
Currently only enables auto-indentation `according to mode'.")
|
||
|
||
(defconst vip-shift-width 8
|
||
"*The shiftwidth variable.")
|
||
|
||
;; Variables for repeating destructive commands
|
||
|
||
(defconst vip-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.")
|
||
|
||
;; Remember insert point as a marker. This is a local marker that must be
|
||
;; initialized to nil and moved with `vip-move-marker-locally'.
|
||
(vip-deflocalvar vip-insert-point nil)
|
||
(put 'vip-insert-point 'permanent-local t)
|
||
|
||
;; This remembers the point before dabbrev-expand was called.
|
||
;; If vip-insert-point turns out to be bigger than that, it is reset
|
||
;; back to vip-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 vip-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
|
||
;; vip-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.
|
||
;;
|
||
(vip-deflocalvar vip-pre-command-point nil)
|
||
(put 'vip-pre-command-point 'permanent-local t) ; this is probably an overkill
|
||
|
||
;; This is used for saving inserted text.
|
||
(defvar vip-last-insertion nil)
|
||
|
||
;; Remembers the last replaced region.
|
||
(defvar vip-last-replace-region "")
|
||
|
||
;; Remember com point as a marker.
|
||
;; This is a local marker. Should be moved with `vip-move-marker-locally'
|
||
(vip-deflocalvar vip-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 vip-d-com nil)
|
||
|
||
;; The character remembered by the Vi `r' command.
|
||
(defvar vip-d-char nil)
|
||
|
||
;; Name of register to store deleted or yanked strings
|
||
(defvar vip-use-register nil)
|
||
|
||
|
||
|
||
;; Variables for Moves and Searches
|
||
|
||
;; For use by `;' command.
|
||
(defvar vip-f-char nil)
|
||
|
||
;; For use by `.' command.
|
||
(defvar vip-F-char nil)
|
||
|
||
;; For use by `;' command.
|
||
(defvar vip-f-forward nil)
|
||
|
||
;; For use by `;' command.
|
||
(defvar vip-f-offset nil)
|
||
|
||
;; Last search string
|
||
(defvar vip-s-string "")
|
||
|
||
(defvar vip-quote-string "> "
|
||
"String inserted at the beginning of quoted region.")
|
||
|
||
;; If t, search is forward.
|
||
(defvar vip-s-forward nil)
|
||
|
||
(defconst vip-case-fold-search nil
|
||
"*If t, search ignores cases.")
|
||
|
||
(defconst vip-re-search t
|
||
"*If t, search is reg-exp search, otherwise vanilla search.")
|
||
|
||
(defconst vip-re-query-replace t
|
||
"*If t then do regexp replace, if nil then do string replace.")
|
||
|
||
(defconst vip-re-replace t
|
||
"*If t, do regexp replace. nil means do string replace.")
|
||
|
||
(vip-deflocalvar vip-ex-style-motion t
|
||
"*Ex-style: the commands l,h do not cross lines, etc.")
|
||
|
||
(vip-deflocalvar vip-ex-style-editing-in-insert t
|
||
"*The keys ^H, ^? don't jump lines in insert, ESC moves cursor back, etc.
|
||
Note: this doesn't preclude ^H and ^? from deleting characters by moving
|
||
past the insertion point. This is a feature, not a bug. ")
|
||
|
||
(vip-deflocalvar vip-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.")
|
||
|
||
(defconst vip-buffer-search-char nil
|
||
"*Key bound for buffer-searching.")
|
||
|
||
(defconst vip-search-wrap-around-t t
|
||
"*If t, search wraps around.")
|
||
|
||
(vip-deflocalvar vip-related-files-and-buffers-ring nil
|
||
"*Ring of file and buffer names that are considered to be related to the
|
||
current buffer.
|
||
These buffers can be cycled through via :R and :P commands.")
|
||
(put 'vip-related-files-and-buffers-ring 'permanent-local t)
|
||
|
||
;; Used to find out if we are done with searching the current buffer.
|
||
(vip-deflocalvar vip-local-search-start-marker nil)
|
||
;; As above, but global
|
||
(defvar vip-search-start-marker (make-marker))
|
||
|
||
;; the search overlay
|
||
(vip-deflocalvar vip-search-overlay nil)
|
||
|
||
|
||
(defvar vip-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 vip-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 ``'.
|
||
(vip-deflocalvar vip-last-jump nil)
|
||
;; Remembers position of the last jump done using `''.
|
||
(vip-deflocalvar vip-last-jump-ignore 0)
|
||
|
||
;; Some common error messages
|
||
|
||
(defconst vip-SpuriousText "Spurious text after command" "")
|
||
(defconst vip-BadExCommand "Not an editor command" "")
|
||
(defconst vip-InvalidCommandArgument "Invalid command argument" "")
|
||
(defconst vip-NoPrevSearch "No previous search string" "")
|
||
(defconst vip-EmptyRegister "`%c': Nothing in this register" "")
|
||
(defconst vip-InvalidRegister "`%c': Invalid register" "")
|
||
(defconst vip-EmptyTextmarker "`%c': Text marker doesn't point anywhere" "")
|
||
(defconst vip-InvalidTextmarker "`%c': Invalid text marker" "")
|
||
(defconst vip-InvalidViCommand "Invalid command" "")
|
||
(defconst vip-BadAddress "Ill-formed address" "")
|
||
(defconst vip-FirstAddrExceedsSecond "First address exceeds second" "")
|
||
(defconst vip-NoFileSpecified "No file specified" "")
|
||
|
||
|
||
;; History variables
|
||
|
||
;; History of search strings.
|
||
(defvar vip-search-history (list ""))
|
||
;; History of query-replace strings used as a source.
|
||
(defvar vip-replace1-history nil)
|
||
;; History of query-replace strings used as replacement.
|
||
(defvar vip-replace2-history nil)
|
||
;; History of region quoting strings.
|
||
(defvar vip-quote-region-history (list vip-quote-string))
|
||
;; History of Ex-style commands.
|
||
(defvar vip-ex-history nil)
|
||
;; History of shell commands.
|
||
(defvar vip-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 vip-last-shell-com nil)
|
||
|
||
|
||
|
||
;;; Miscellaneous
|
||
|
||
;; don't bark when mark is inactive
|
||
(setq mark-even-if-inactive t)
|
||
|
||
(defvar vip-inhibit-startup-message nil
|
||
"Whether Viper startup message should be inhibited.")
|
||
|
||
(defvar vip-always t
|
||
"t means, arrange that vi-state will be a default.")
|
||
|
||
(defvar vip-custom-file-name (cond ((memq system-type '(vax-vms axp-vms))
|
||
"sys$login:.vip")
|
||
((memq system-type '(emx ms-dos))
|
||
"/_vip")
|
||
((memq system-type '(windows-nt windows-95))
|
||
"~/_vip")
|
||
(t ; Unix
|
||
"~/.vip"))
|
||
"Viper customisation file.
|
||
This variable must be set _before_ loading Viper.")
|
||
|
||
(defvar vip-spell-function 'ispell-region
|
||
"Spell function used by #s<move> command to spell.")
|
||
|
||
(defvar vip-tags-file-name "TAGS"
|
||
"The tags file used by Viper.")
|
||
|
||
;; Minibuffer
|
||
|
||
(defvar vip-vi-style-in-minibuffer t
|
||
"If t, use vi-style editing in minibuffer.
|
||
Should be set in `~/.vip' file.")
|
||
|
||
;; overlay used in the minibuffer to indicate which state it is in
|
||
(vip-deflocalvar vip-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 vip-minibuffer-exit-hook nil)
|
||
|
||
(vip-deflocalvar vip-vi-minibuffer-minor-mode nil
|
||
"Minor mode that forces Vi-style when the Minibuffer is in Vi state.")
|
||
(vip-deflocalvar vip-insert-minibuffer-minor-mode nil
|
||
"Minor mode that forces Vi-style when the Minibuffer is in Insert state.")
|
||
|
||
;; setup emacs-supported vi-style feel
|
||
(setq next-line-add-newlines nil
|
||
require-final-newline t)
|
||
|
||
(make-variable-buffer-local 'require-final-newline)
|
||
|
||
|
||
;; Mode line
|
||
(defconst vip-vi-state-id "<V> "
|
||
"Mode line tag identifying the Vi mode of Viper.")
|
||
(defconst vip-emacs-state-id "<E> "
|
||
"Mode line tag identifying the Emacs mode of Viper.")
|
||
(defconst vip-insert-state-id "<I> "
|
||
"Mode line tag identifying the Insert mode of Viper.")
|
||
(defconst vip-replace-state-id "<R> "
|
||
"Mode line tag identifying the Replace mode of Viper.")
|
||
|
||
;; Viper changes the default mode-line-buffer-identification
|
||
(setq-default mode-line-buffer-identification '(" %b"))
|
||
|
||
;; Variable displaying the current Viper state in the mode line.
|
||
(vip-deflocalvar vip-mode-string vip-emacs-state-id)
|
||
(or (memq 'vip-mode-string global-mode-string)
|
||
(setq global-mode-string
|
||
(append '("" vip-mode-string) (cdr global-mode-string))))
|
||
|
||
|
||
(defvar vip-vi-state-hook nil
|
||
"*Hooks run just before the switch to Vi mode is completed.")
|
||
(defvar vip-insert-state-hook nil
|
||
"*Hooks run just before the switch to Insert mode is completed.")
|
||
(defvar vip-replace-state-hook nil
|
||
"*Hooks run just before the switch to Replace mode is completed.")
|
||
(defvar vip-emacs-state-hook nil
|
||
"*Hooks run just before the switch to Emacs mode is completed.")
|
||
|
||
(defvar vip-load-hook nil
|
||
"Hooks run just after loading Viper.")
|
||
|
||
|
||
;; Generic predicates
|
||
|
||
;; These test functions are shamelessly lifted from vip 4.4.2 by Aamod Sane
|
||
|
||
;; generate test functions
|
||
;; given symbol foo, foo-p is the test function, foos is the set of
|
||
;; Viper command keys
|
||
;; (macroexpand '(vip-test-com-defun foo))
|
||
;; (defun foo-p (com) (consp (memq (if (< com 0) (- com) com) foos)))
|
||
|
||
(defmacro vip-test-com-defun (name)
|
||
(let* ((snm (symbol-name name))
|
||
(nm-p (intern (concat snm "-p")))
|
||
(nms (intern (concat snm "s"))))
|
||
(` (defun (, nm-p) (com)
|
||
(consp (memq (if (< com 0) (- com) com) (, nms)))))))
|
||
|
||
;; Variables for defining VI commands
|
||
|
||
;; Modifying commands that can be prefixes to movement commands
|
||
(defconst vip-prefix-commands '(?c ?d ?y ?! ?= ?# ?< ?> ?\"))
|
||
(vip-test-com-defun vip-prefix-command)
|
||
|
||
;; Commands that are pairs eg. dd. r and R here are a hack
|
||
(defconst vip-charpair-commands '(?c ?d ?y ?! ?= ?< ?> ?r ?R))
|
||
(vip-test-com-defun vip-charpair-command)
|
||
|
||
(defconst vip-movement-commands '(?b ?B ?e ?E ?f ?F ?G ?h ?H ?j ?k ?l
|
||
?H ?M ?n ?t ?T ?w ?W ?$ ?%
|
||
?^ ?( ?) ?- ?+ ?| ?{ ?} ?[ ?] ?' ?`
|
||
?; ?, ?0 ?? ?/
|
||
)
|
||
"Movement commands")
|
||
(vip-test-com-defun vip-movement-command)
|
||
|
||
;; Commands that can be repeated by .(dotted)
|
||
(defconst vip-dotable-commands '(?c ?d ?C ?D ?> ?<))
|
||
(vip-test-com-defun vip-dotable-command)
|
||
|
||
;; Commands that can follow a #
|
||
(defconst vip-hash-cmds '(?c ?C ?g ?q ?S))
|
||
(vip-test-com-defun vip-hash-cmd)
|
||
|
||
;; Commands that may have registers as prefix
|
||
(defconst vip-regsuffix-commands '(?d ?y ?Y ?D ?p ?P ?x ?X))
|
||
(vip-test-com-defun vip-regsuffix-command)
|
||
|
||
|
||
|
||
;;; Arrange the keymaps
|
||
(require 'viper-keym)
|
||
|
||
|
||
;;; CODE
|
||
|
||
;; sentinels
|
||
|
||
;; Runs vip-after-change-functions inside after-change-functions
|
||
(defun vip-after-change-sentinel (beg end len)
|
||
(let ((list vip-after-change-functions))
|
||
(while list
|
||
(funcall (car list) beg end len)
|
||
(setq list (cdr list)))))
|
||
|
||
;; Runs vip-before-change-functions inside before-change-functions
|
||
(defun vip-before-change-sentinel (beg end)
|
||
(let ((list vip-before-change-functions))
|
||
(while list
|
||
(funcall (car list) beg end)
|
||
(setq list (cdr list)))))
|
||
|
||
(defsubst vip-post-command-sentinel ()
|
||
(run-hooks 'vip-post-command-hooks))
|
||
|
||
(defsubst vip-pre-command-sentinel ()
|
||
(run-hooks 'vip-pre-command-hooks))
|
||
|
||
;; Needed so that Viper will be able to figure the last inserted
|
||
;; chunk of text with reasonable accuracy.
|
||
(defsubst vip-insert-state-post-command-sentinel ()
|
||
(if (and (memq vip-current-state '(insert-state replace-state))
|
||
vip-insert-point
|
||
(>= (point) vip-insert-point))
|
||
(setq vip-last-posn-while-in-insert-state (point-marker)))
|
||
(if (and (eq this-command 'dabbrev-expand)
|
||
(integerp vip-pre-command-point)
|
||
(> vip-insert-point vip-pre-command-point))
|
||
(move-marker vip-insert-point vip-pre-command-point))
|
||
)
|
||
|
||
(defsubst vip-insert-state-pre-command-sentinel ()
|
||
(if (and (eq this-command 'dabbrev-expand)
|
||
(markerp vip-insert-point)
|
||
(marker-position vip-insert-point))
|
||
(setq vip-pre-command-point (marker-position vip-insert-point))))
|
||
|
||
(defsubst vip-R-state-post-command-sentinel ()
|
||
;; Restoring cursor color is needed despite
|
||
;; vip-replace-state-pre-command-sentinel: When you jump to another buffer in
|
||
;; another frame, the pre-command hook won't change cursor color to default
|
||
;; in that other frame. So, if the second frame cursor was red and we set
|
||
;; the point outside the replacement region, then the cursor color will
|
||
;; remain red. Restoring the default, below, prevents this.
|
||
(if (and (<= (vip-replace-start) (point))
|
||
(<= (point) (vip-replace-end)))
|
||
(vip-change-cursor-color vip-replace-overlay-cursor-color)
|
||
(vip-restore-cursor-color)
|
||
))
|
||
|
||
;; to speed up, don't change cursor color before self-insert
|
||
;; and common move commands
|
||
(defsubst vip-replace-state-pre-command-sentinel ()
|
||
(or (memq this-command '(self-insert-command))
|
||
(memq (vip-event-key last-command-event)
|
||
'(up down left right (meta f) (meta b)
|
||
(control n) (control p) (control f) (control b)))
|
||
(vip-restore-cursor-color)))
|
||
|
||
(defun vip-replace-state-post-command-sentinel ()
|
||
;; Restoring cursor color is needed despite
|
||
;; vip-replace-state-pre-command-sentinel: When one jumps to another buffer
|
||
;; in another frame, the pre-command hook won't change cursor color to
|
||
;; default in that other frame. So, if the second frame cursor was red and
|
||
;; we set the point outside the replacement region, then the cursor color
|
||
;; will remain red. Restoring the default, below, fixes this problem.
|
||
;;
|
||
;; We optimize for self-insert-command's here, since they either don't change
|
||
;; cursor color or, if they terminate replace mode, the color will be changed
|
||
;; in vip-finish-change
|
||
(or (memq this-command '(self-insert-command))
|
||
(vip-restore-cursor-color))
|
||
(cond
|
||
((eq vip-current-state 'replace-state)
|
||
;; delete characters to compensate for inserted chars.
|
||
(let ((replace-boundary (vip-replace-end)))
|
||
(save-excursion
|
||
(goto-char vip-last-posn-in-replace-region)
|
||
(delete-char vip-replace-chars-to-delete)
|
||
(setq vip-replace-chars-to-delete 0
|
||
vip-replace-chars-deleted 0)
|
||
;; terminate replace mode if reached replace limit
|
||
(if (= vip-last-posn-in-replace-region
|
||
(vip-replace-end))
|
||
(vip-finish-change vip-last-posn-in-replace-region)))
|
||
|
||
(if (and (<= (vip-replace-start) (point))
|
||
(<= (point) replace-boundary))
|
||
(progn
|
||
;; the state may have changed in vip-finish-change above
|
||
(if (eq vip-current-state 'replace-state)
|
||
(vip-change-cursor-color vip-replace-overlay-cursor-color))
|
||
(setq vip-last-posn-in-replace-region (point-marker))))
|
||
))
|
||
|
||
(t ;; terminate replace mode if changed Viper states.
|
||
(vip-finish-change vip-last-posn-in-replace-region))))
|
||
|
||
|
||
;; changing mode
|
||
|
||
;; Change state to NEW-STATE---either emacs-state, vi-state, or insert-state.
|
||
(defun vip-change-state (new-state)
|
||
;; Keep vip-post/pre-command-hooks fresh.
|
||
;; We remove then add vip-post/pre-command-sentinel since it is very
|
||
;; desirable that vip-pre-command-sentinel is the last hook and
|
||
;; vip-post-command-sentinel is the first hook.
|
||
(remove-hook 'post-command-hook 'vip-post-command-sentinel)
|
||
(add-hook 'post-command-hook 'vip-post-command-sentinel)
|
||
(remove-hook 'pre-command-hook 'vip-pre-command-sentinel)
|
||
(add-hook 'pre-command-hook 'vip-pre-command-sentinel t)
|
||
;; These hooks will be added back if switching to insert/replace mode
|
||
(vip-remove-hook 'vip-post-command-hooks
|
||
'vip-insert-state-post-command-sentinel)
|
||
(vip-remove-hook 'vip-pre-command-hooks
|
||
'vip-insert-state-pre-command-sentinel)
|
||
(cond ((eq new-state 'vi-state)
|
||
(cond ((member vip-current-state '(insert-state replace-state))
|
||
|
||
;; move vip-last-posn-while-in-insert-state
|
||
;; This is a normal hook that is executed in insert/replace
|
||
;; states after each command. In Vi/Emacs state, it does
|
||
;; nothing. We need to execute it here to make sure that
|
||
;; the last posn was recorded when we hit ESC.
|
||
;; It may be left unrecorded if the last thing done in
|
||
;; insert/repl state was dabbrev-expansion or abbrev
|
||
;; expansion caused by hitting ESC
|
||
(vip-insert-state-post-command-sentinel)
|
||
|
||
(condition-case conds
|
||
(progn
|
||
(vip-save-last-insertion
|
||
vip-insert-point
|
||
vip-last-posn-while-in-insert-state)
|
||
(if vip-began-as-replace
|
||
(setq vip-began-as-replace nil)
|
||
;; repeat insert commands if numerical arg > 1
|
||
(save-excursion
|
||
(vip-repeat-insert-command))))
|
||
(error
|
||
(vip-message-conditions conds)))
|
||
|
||
(if (> (length vip-last-insertion) 0)
|
||
(vip-push-onto-ring vip-last-insertion
|
||
'vip-insertion-ring))
|
||
|
||
(if vip-ex-style-editing-in-insert
|
||
(or (bolp) (backward-char 1))))
|
||
))
|
||
|
||
;; insert or replace
|
||
((memq new-state '(insert-state replace-state))
|
||
(if (memq vip-current-state '(emacs-state vi-state))
|
||
(vip-move-marker-locally 'vip-insert-point (point)))
|
||
(vip-move-marker-locally 'vip-last-posn-while-in-insert-state (point))
|
||
(vip-add-hook 'vip-post-command-hooks
|
||
'vip-insert-state-post-command-sentinel t)
|
||
(vip-add-hook 'vip-pre-command-hooks
|
||
'vip-insert-state-pre-command-sentinel t))
|
||
) ; outermost cond
|
||
|
||
;; Nothing needs to be done to switch to emacs mode! Just set some
|
||
;; variables, which is already done in vip-change-state-to-emacs!
|
||
|
||
(setq vip-current-state new-state)
|
||
(vip-normalize-minor-mode-map-alist)
|
||
(vip-adjust-keys-for new-state)
|
||
(vip-set-mode-vars-for new-state)
|
||
(vip-refresh-mode-line)
|
||
)
|
||
|
||
|
||
|
||
(defun vip-adjust-keys-for (state)
|
||
"Make necessary adjustments to keymaps before entering STATE."
|
||
(cond ((memq state '(insert-state replace-state))
|
||
(if vip-auto-indent
|
||
(progn
|
||
(define-key vip-insert-basic-map "\C-m" 'vip-autoindent)
|
||
(if vip-want-emacs-keys-in-insert
|
||
;; expert
|
||
(define-key vip-insert-basic-map "\C-j" nil)
|
||
;; novice
|
||
(define-key vip-insert-basic-map "\C-j" 'vip-autoindent))))
|
||
|
||
(setq vip-insert-diehard-minor-mode
|
||
(not vip-want-emacs-keys-in-insert))
|
||
|
||
(if vip-want-ctl-h-help
|
||
(progn
|
||
(define-key vip-insert-basic-map "\C-h" 'help-command)
|
||
(define-key vip-replace-map "\C-h" 'help-command))
|
||
(define-key vip-insert-basic-map
|
||
"\C-h" 'vip-del-backward-char-in-insert)
|
||
(define-key vip-replace-map
|
||
"\C-h" 'vip-del-backward-char-in-replace)))
|
||
|
||
(t
|
||
(setq vip-vi-diehard-minor-mode (not vip-want-emacs-keys-in-vi))
|
||
(if vip-want-ctl-h-help
|
||
(define-key vip-vi-basic-map "\C-h" 'help-command)
|
||
(define-key vip-vi-basic-map "\C-h" 'vip-backward-char)))
|
||
))
|
||
|
||
|
||
;; Normalizes minor-mode-map-alist by putting Viper keymaps first.
|
||
;; This ensures that Viper bindings are in effect, regardless of which minor
|
||
;; modes were turned on by the user or by other packages.
|
||
(defun vip-normalize-minor-mode-map-alist ()
|
||
(setq minor-mode-map-alist
|
||
(vip-append-filter-alist
|
||
(list
|
||
(cons 'vip-vi-intercept-minor-mode vip-vi-intercept-map)
|
||
(cons 'vip-vi-minibuffer-minor-mode vip-minibuffer-map)
|
||
(cons 'vip-vi-local-user-minor-mode vip-vi-local-user-map)
|
||
(cons 'vip-vi-kbd-minor-mode vip-vi-kbd-map)
|
||
(cons 'vip-vi-global-user-minor-mode vip-vi-global-user-map)
|
||
(cons 'vip-vi-state-modifier-minor-mode
|
||
(if (keymapp
|
||
(cdr (assoc major-mode vip-vi-state-modifier-alist)))
|
||
(cdr (assoc major-mode vip-vi-state-modifier-alist))
|
||
vip-empty-keymap))
|
||
(cons 'vip-vi-diehard-minor-mode vip-vi-diehard-map)
|
||
(cons 'vip-vi-basic-minor-mode vip-vi-basic-map)
|
||
(cons 'vip-insert-intercept-minor-mode vip-insert-intercept-map)
|
||
(cons 'vip-replace-minor-mode vip-replace-map)
|
||
;; vip-insert-minibuffer-minor-mode must come after
|
||
;; vip-replace-minor-mode
|
||
(cons 'vip-insert-minibuffer-minor-mode
|
||
vip-minibuffer-map)
|
||
(cons 'vip-insert-local-user-minor-mode
|
||
vip-insert-local-user-map)
|
||
(cons 'vip-insert-kbd-minor-mode vip-insert-kbd-map)
|
||
(cons 'vip-insert-global-user-minor-mode
|
||
vip-insert-global-user-map)
|
||
(cons 'vip-insert-state-modifier-minor-mode
|
||
(if (keymapp
|
||
(cdr
|
||
(assoc major-mode vip-insert-state-modifier-alist)))
|
||
(cdr
|
||
(assoc major-mode vip-insert-state-modifier-alist))
|
||
vip-empty-keymap))
|
||
(cons 'vip-insert-diehard-minor-mode vip-insert-diehard-map)
|
||
(cons 'vip-insert-basic-minor-mode vip-insert-basic-map)
|
||
(cons 'vip-emacs-intercept-minor-mode
|
||
vip-emacs-intercept-map)
|
||
(cons 'vip-emacs-local-user-minor-mode
|
||
vip-emacs-local-user-map)
|
||
(cons 'vip-emacs-kbd-minor-mode vip-emacs-kbd-map)
|
||
(cons 'vip-emacs-global-user-minor-mode
|
||
vip-emacs-global-user-map)
|
||
(cons 'vip-emacs-state-modifier-minor-mode
|
||
(if (keymapp
|
||
(cdr
|
||
(assoc major-mode vip-emacs-state-modifier-alist)))
|
||
(cdr
|
||
(assoc major-mode vip-emacs-state-modifier-alist))
|
||
vip-empty-keymap))
|
||
)
|
||
minor-mode-map-alist)))
|
||
|
||
|
||
|
||
|
||
|
||
;; Viper mode-changing commands and utilities
|
||
|
||
;; Modifies mode-line-buffer-identification.
|
||
(defun vip-refresh-mode-line ()
|
||
(setq vip-mode-string
|
||
(cond ((eq vip-current-state 'emacs-state) vip-emacs-state-id)
|
||
((eq vip-current-state 'vi-state) vip-vi-state-id)
|
||
((eq vip-current-state 'replace-state) vip-replace-state-id)
|
||
((eq vip-current-state 'insert-state) vip-insert-state-id)))
|
||
|
||
;; Sets Viper mode string in global-mode-string
|
||
(force-mode-line-update))
|
||
|
||
;;;###autoload
|
||
(defun viper-mode ()
|
||
"Turn on Viper emulation of Vi."
|
||
(interactive)
|
||
(if (not noninteractive)
|
||
(progn
|
||
(if vip-first-time ; This check is important. Without it, startup and
|
||
(progn ; expert-level msgs mix up when viper-mode recurses
|
||
(setq vip-first-time nil)
|
||
(if (not vip-inhibit-startup-message)
|
||
(save-window-excursion
|
||
(setq vip-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.
|
||
It is also a VI Plan for Emacs Rescue and a venomous VI PERil.
|
||
|
||
Technically speaking, Viper is a Vi emulation package for GNU Emacs 19 and
|
||
XEmacs 19. It supports virtually all of Vi and Ex functionality, 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.
|
||
|
||
If your user level is 2 or higher, ^X and ^C will invoke Emacs
|
||
functions,as usual in Emacs; ^Z will toggle vi/emacs modes, and
|
||
^G will be the usual Emacs's keyboard-quit (something 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 (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 functions are invoked by typing `_' or `\\ ESC'.
|
||
On a window system, the best way is to use the Meta-key.
|
||
7. Try \\[keyboard-quit] and \\[abort-recursive-edit] repeatedly,
|
||
if something funny happens. This would abort the current editing
|
||
command.
|
||
|
||
You can get more information on Viper by:
|
||
|
||
a. Typing `:help' in Vi state
|
||
b. Printing Viper manual, found in ./etc/viper.dvi
|
||
c. Printing ViperCard, the Quick Reference, found in ./etc/viperCard.dvi
|
||
|
||
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? ")
|
||
(vip-save-setting
|
||
'vip-inhibit-startup-message
|
||
"Viper startup message inhibited"
|
||
vip-custom-file-name t))
|
||
(kill-buffer (current-buffer))))
|
||
(message " ")
|
||
(vip-set-expert-level 'dont-change-unless)))
|
||
(vip-change-state-to-vi))))
|
||
|
||
;;;###autoload
|
||
(defalias 'vip-mode 'viper-mode)
|
||
|
||
|
||
;; Switch from Insert state to Vi state.
|
||
(defun vip-exit-insert-state ()
|
||
(interactive)
|
||
(vip-change-state-to-vi))
|
||
|
||
(defun vip-set-mode-vars-for (state)
|
||
"Sets Viper minor mode variables to put Viper's state STATE in effect."
|
||
|
||
;; Emacs state
|
||
(setq vip-vi-minibuffer-minor-mode nil
|
||
vip-insert-minibuffer-minor-mode nil
|
||
vip-vi-intercept-minor-mode nil
|
||
vip-insert-intercept-minor-mode nil
|
||
|
||
vip-vi-local-user-minor-mode nil
|
||
vip-vi-kbd-minor-mode nil
|
||
vip-vi-global-user-minor-mode nil
|
||
vip-vi-state-modifier-minor-mode nil
|
||
vip-vi-diehard-minor-mode nil
|
||
vip-vi-basic-minor-mode nil
|
||
|
||
vip-replace-minor-mode nil
|
||
|
||
vip-insert-local-user-minor-mode nil
|
||
vip-insert-kbd-minor-mode nil
|
||
vip-insert-global-user-minor-mode nil
|
||
vip-insert-state-modifier-minor-mode nil
|
||
vip-insert-diehard-minor-mode nil
|
||
vip-insert-basic-minor-mode nil
|
||
vip-emacs-intercept-minor-mode t
|
||
vip-emacs-local-user-minor-mode t
|
||
vip-emacs-kbd-minor-mode (not (vip-is-in-minibuffer))
|
||
vip-emacs-global-user-minor-mode t
|
||
vip-emacs-state-modifier-minor-mode t
|
||
)
|
||
|
||
;; Vi state
|
||
(if (eq state 'vi-state) ; adjust for vi-state
|
||
(setq
|
||
vip-vi-intercept-minor-mode t
|
||
vip-vi-minibuffer-minor-mode (vip-is-in-minibuffer)
|
||
vip-vi-local-user-minor-mode t
|
||
vip-vi-kbd-minor-mode (not (vip-is-in-minibuffer))
|
||
vip-vi-global-user-minor-mode t
|
||
vip-vi-state-modifier-minor-mode t
|
||
;; don't let the diehard keymap block command completion
|
||
;; and other things in the minibuffer
|
||
vip-vi-diehard-minor-mode (not
|
||
(or vip-want-emacs-keys-in-vi
|
||
(vip-is-in-minibuffer)))
|
||
vip-vi-basic-minor-mode t
|
||
vip-emacs-intercept-minor-mode nil
|
||
vip-emacs-local-user-minor-mode nil
|
||
vip-emacs-kbd-minor-mode nil
|
||
vip-emacs-global-user-minor-mode nil
|
||
vip-emacs-state-modifier-minor-mode nil
|
||
))
|
||
|
||
;; Insert and Replace states
|
||
(if (member state '(insert-state replace-state))
|
||
(setq
|
||
vip-insert-intercept-minor-mode t
|
||
vip-replace-minor-mode (eq state 'replace-state)
|
||
vip-insert-minibuffer-minor-mode (vip-is-in-minibuffer)
|
||
vip-insert-local-user-minor-mode t
|
||
vip-insert-kbd-minor-mode (not (vip-is-in-minibuffer))
|
||
vip-insert-global-user-minor-mode t
|
||
vip-insert-state-modifier-minor-mode t
|
||
;; don't let the diehard keymap block command completion
|
||
;; and other things in the minibuffer
|
||
vip-insert-diehard-minor-mode (not
|
||
(or vip-want-emacs-keys-in-insert
|
||
(vip-is-in-minibuffer)))
|
||
vip-insert-basic-minor-mode t
|
||
vip-emacs-intercept-minor-mode nil
|
||
vip-emacs-local-user-minor-mode nil
|
||
vip-emacs-kbd-minor-mode nil
|
||
vip-emacs-global-user-minor-mode nil
|
||
vip-emacs-state-modifier-minor-mode nil
|
||
))
|
||
|
||
;; minibuffer faces
|
||
(if (vip-has-face-support-p)
|
||
(setq vip-minibuffer-current-face
|
||
(cond ((eq state 'emacs-state) vip-minibuffer-emacs-face)
|
||
((eq state 'vi-state) vip-minibuffer-vi-face)
|
||
((memq state '(insert-state replace-state))
|
||
vip-minibuffer-insert-face))))
|
||
|
||
(if (vip-is-in-minibuffer)
|
||
(vip-set-minibuffer-overlay))
|
||
)
|
||
|
||
;; This also takes care of the annoying incomplete lines in files.
|
||
;; Also, this fixes `undo' to work vi-style for complex commands.
|
||
(defun vip-change-state-to-vi ()
|
||
"Change Viper state to Vi."
|
||
(interactive)
|
||
(if (and vip-first-time (not (vip-is-in-minibuffer)))
|
||
(viper-mode)
|
||
(if overwrite-mode (overwrite-mode nil))
|
||
(if abbrev-mode (expand-abbrev))
|
||
(if (and auto-fill-function (> (current-column) fill-column))
|
||
(funcall auto-fill-function))
|
||
;; don't leave whitespace lines around
|
||
(if (and (memq last-command
|
||
'(vip-autoindent
|
||
vip-open-line vip-Open-line
|
||
vip-replace-state-exit-cmd))
|
||
(vip-over-whitespace-line))
|
||
(indent-to-left-margin))
|
||
(vip-add-newline-at-eob-if-necessary)
|
||
(if vip-undo-needs-adjustment (vip-adjust-undo))
|
||
(vip-change-state 'vi-state)
|
||
|
||
;; always turn off iso-accents-mode, or else we won't be able to use the
|
||
;; keys `,',^ in Vi state, as they will do accents instead of Vi actions.
|
||
(if (and (boundp 'iso-accents-mode) iso-accents-mode)
|
||
(iso-accents-mode -1))
|
||
|
||
;; Protection against user errors in hooks
|
||
(condition-case conds
|
||
(run-hooks 'vip-vi-state-hook)
|
||
(error
|
||
(vip-message-conditions conds)))))
|
||
|
||
(defun vip-change-state-to-insert ()
|
||
"Change Viper state to Insert."
|
||
(interactive)
|
||
(vip-change-state 'insert-state)
|
||
(if (and vip-automatic-iso-accents (fboundp 'iso-accents-mode))
|
||
(iso-accents-mode 1)) ; turn iso accents on
|
||
|
||
;; Protection against user errors in hooks
|
||
(condition-case conds
|
||
(run-hooks 'vip-insert-state-hook)
|
||
(error
|
||
(vip-message-conditions conds))))
|
||
|
||
(defsubst vip-downgrade-to-insert ()
|
||
(setq vip-current-state 'insert-state
|
||
vip-replace-minor-mode nil)
|
||
)
|
||
|
||
|
||
|
||
;; Change to replace state. When the end of replacement region is reached,
|
||
;; replace state changes to insert state.
|
||
(defun vip-change-state-to-replace (&optional non-R-cmd)
|
||
(vip-change-state 'replace-state)
|
||
(if (and vip-automatic-iso-accents (fboundp 'iso-accents-mode))
|
||
(iso-accents-mode 1)) ; turn iso accents on
|
||
;; Run insert-state-hook
|
||
(condition-case conds
|
||
(run-hooks 'vip-insert-state-hook 'vip-replace-state-hook)
|
||
(error
|
||
(vip-message-conditions conds)))
|
||
|
||
(if non-R-cmd
|
||
(vip-start-replace)
|
||
;; 'R' is implemented using Emacs's overwrite-mode
|
||
(vip-start-R-mode))
|
||
)
|
||
|
||
|
||
(defun vip-change-state-to-emacs ()
|
||
"Change Viper state to Emacs."
|
||
(interactive)
|
||
(vip-change-state 'emacs-state)
|
||
(if (and vip-automatic-iso-accents (fboundp 'iso-accents-mode))
|
||
(iso-accents-mode 1)) ; turn iso accents on
|
||
|
||
;; Protection agains user errors in hooks
|
||
(condition-case conds
|
||
(run-hooks 'vip-emacs-state-hook)
|
||
(error
|
||
(vip-message-conditions conds))))
|
||
|
||
;; escape to emacs mode termporarily
|
||
(defun vip-escape-to-emacs (arg &optional events)
|
||
"Escape to Emacs state from Vi state for one Emacs command.
|
||
ARG is used as the prefix value for the executed command. If
|
||
EVENTS is a list of events, which become the beginning of the command."
|
||
(interactive "P")
|
||
(vip-escape-to-state arg events 'emacs-state))
|
||
|
||
;; escape to Vi mode termporarily
|
||
(defun vip-escape-to-vi ()
|
||
"Escape from Emacs state to Vi state for one Vi 1-character command.
|
||
This doesn't work with prefix arguments or most complex commands like
|
||
cw, dw, etc. But it does work with some 2-character commands,
|
||
like dd or dr."
|
||
(interactive)
|
||
(vip-escape-to-state nil nil 'vi-state))
|
||
|
||
;; Escape to STATE mode for one Emacs command.
|
||
(defun vip-escape-to-state (arg events state)
|
||
(let (com key prefix-arg)
|
||
;; this temporarily turns off Viper's minor mode keymaps
|
||
(vip-set-mode-vars-for state)
|
||
(vip-normalize-minor-mode-map-alist)
|
||
(if events (vip-set-unread-command-events events))
|
||
|
||
;; protect against keyboard quit and other errors
|
||
(condition-case nil
|
||
(progn
|
||
(unwind-protect
|
||
(progn
|
||
(setq com (key-binding (setq key
|
||
(if vip-xemacs-p
|
||
(read-key-sequence nil)
|
||
(read-key-sequence nil t)))))
|
||
;; In case of indirection--chase definitions.
|
||
;; Have to do it here because we execute this command under
|
||
;; different keymaps, so command-execute may not do the
|
||
;; right thing there
|
||
(while (vectorp com) (setq com (key-binding com))))
|
||
nil)
|
||
;; exec command in the right Viper state
|
||
;; otherwise, if we switch buffers in the escaped command,
|
||
;; Viper's mode vars will remain those of `state'. When we return
|
||
;; to the orig buffer, the bindings will be screwed up.
|
||
(vip-set-mode-vars-for vip-current-state)
|
||
|
||
;; this-command, last-command-char, last-command-event
|
||
(setq this-command com)
|
||
(if vip-xemacs-p ; XEmacs represents key sequences as vectors
|
||
(setq last-command-event (vip-seq-last-elt key)
|
||
last-command-char (event-to-character last-command-event))
|
||
;; Emacs represents them as sequences (str or vec)
|
||
(setq last-command-event (vip-seq-last-elt key)
|
||
last-command-char last-command-event))
|
||
|
||
(if (commandp com)
|
||
(progn
|
||
(setq prefix-arg arg)
|
||
(command-execute com)))
|
||
)
|
||
(quit (ding))
|
||
(error (beep 1))))
|
||
(vip-set-mode-vars-for vip-current-state)) ; set state in new buffer
|
||
|
||
(defun vip-exec-form-in-emacs (form)
|
||
"Execute FORM in Emacs, temporarily disabling Viper's minor modes.
|
||
Similar to vip-escape-to-emacs, but accepts forms rather than keystrokes."
|
||
(let ((buff (current-buffer))
|
||
result)
|
||
(vip-set-mode-vars-for 'emacs-state)
|
||
(setq result (eval form))
|
||
(if (not (equal buff (current-buffer))) ; cmd switched buffer
|
||
(save-excursion
|
||
(set-buffer buff)
|
||
(vip-set-mode-vars-for vip-current-state)))
|
||
(vip-set-mode-vars-for vip-current-state)
|
||
result))
|
||
|
||
|
||
;; This is needed because minor modes sometimes override essential Viper
|
||
;; bindings. By letting Viper know which files these modes are in, it will
|
||
;; arrange to reorganize minor-mode-map-alist so that things will work right.
|
||
(defun vip-harness-minor-mode (load-file)
|
||
"Familiarize Viper with a minor mode defined in LOAD_FILE.
|
||
Minor modes that have their own keymaps may overshadow Viper keymaps.
|
||
This function is designed to make Viper aware of the packages that define
|
||
such minor modes.
|
||
Usage:
|
||
(vip-harness-minor-mode load-file)
|
||
|
||
LOAD-FILE is a name of the file where the specific minor mode is defined.
|
||
Suffixes such as .el or .elc should be stripped."
|
||
|
||
(interactive "sEnter name of the load file: ")
|
||
|
||
(vip-eval-after-load load-file '(vip-normalize-minor-mode-map-alist))
|
||
|
||
;; Change the default for minor-mode-map-alist each time a harnessed minor
|
||
;; mode adds its own keymap to the a-list.
|
||
(vip-eval-after-load
|
||
load-file '(setq-default minor-mode-map-alist minor-mode-map-alist))
|
||
)
|
||
|
||
|
||
(defun vip-ESC (arg)
|
||
"Emulate ESC key in Emacs.
|
||
Prevents multiple escape keystrokes if vip-no-multiple-ESC is true. In that
|
||
case \@ will be bound to ESC. If vip-no-multiple-ESC is 'twice double ESC
|
||
would dings in vi-state. Other ESC sequences are emulated via the current
|
||
Emacs's major mode keymap. This is more convenient on dumb terminals and in
|
||
Emacs -nw, since this won't block functional keys such as up,down,
|
||
etc. Meta key also will work. When vip-no-multiple-ESC is nil, ESC key
|
||
behaves as in Emacs, any number of multiple escapes is allowed."
|
||
(interactive "P")
|
||
(let (char)
|
||
(cond ((and (not vip-no-multiple-ESC) (eq vip-current-state 'vi-state))
|
||
(setq char (vip-read-char-exclusive))
|
||
(vip-escape-to-emacs arg (list ?\e char) ))
|
||
((and (eq vip-no-multiple-ESC 'twice)
|
||
(eq vip-current-state 'vi-state))
|
||
(setq char (vip-read-char-exclusive))
|
||
(if (= char (string-to-char vip-ESC-key))
|
||
(ding)
|
||
(vip-escape-to-emacs arg (list ?\e char) )))
|
||
(t (ding)))
|
||
))
|
||
|
||
(defun vip-alternate-ESC (arg)
|
||
"ESC key without checking for multiple keystrokes."
|
||
(interactive "P")
|
||
(vip-escape-to-emacs arg '(?\e)))
|
||
|
||
|
||
;; Intercept ESC sequences on dumb terminals.
|
||
;; Based on the idea contributed by Marcelino Veiga Tuimil <mveiga@dit.upm.es>
|
||
|
||
;; Check if last key was ESC and if so try to reread it as a function key.
|
||
;; But only if there are characters to read during a very short time.
|
||
;; Returns the last event, if any.
|
||
(defun vip-envelop-ESC-key ()
|
||
(let ((event last-input-event)
|
||
(keyseq [nil])
|
||
inhibit-quit)
|
||
(if (vip-ESC-event-p event)
|
||
(progn
|
||
(if (vip-fast-keysequence-p)
|
||
(progn
|
||
(let (minor-mode-map-alist)
|
||
(vip-set-unread-command-events event)
|
||
(setq keyseq
|
||
(funcall
|
||
(ad-get-orig-definition 'read-key-sequence) nil))
|
||
) ; let
|
||
;; If keyseq translates into something that still has ESC
|
||
;; at the beginning, separate ESC from the rest of the seq.
|
||
;; In XEmacs we check for events that are keypress meta-key
|
||
;; and convert them into [escape key]
|
||
;;
|
||
;; This is needed for the following reason:
|
||
;; If ESC is the first symbol, we interpret it as if the
|
||
;; user typed ESC and then quickly some other symbols.
|
||
;; If ESC is not the first one, then the key sequence
|
||
;; entered was apparently translated into a function key or
|
||
;; something (e.g., one may have
|
||
;; (define-key function-key-map "\e[192z" [f11])
|
||
;; which would translate the escape-sequence generated by
|
||
;; f11 in an xterm window into the symbolic key f11.
|
||
;;
|
||
;; If `first-key' is not an ESC event, we make it into the
|
||
;; last-command-event in order to pretend that this key was
|
||
;; pressed. This is needed to allow arrow keys to be bound to
|
||
;; macros. Otherwise, vip-exec-mapped-kbd-macro will think that
|
||
;; the last event was ESC and so it'll execute whatever is
|
||
;; bound to ESC. (Viper macros can't be bound to
|
||
;; ESC-sequences).
|
||
(let* ((first-key (elt keyseq 0))
|
||
(key-mod (event-modifiers first-key)))
|
||
(cond ((vip-ESC-event-p first-key)
|
||
;; put keys following ESC on the unread list
|
||
;; and return ESC as the key-sequence
|
||
(vip-set-unread-command-events (subseq keyseq 1))
|
||
(setq last-input-event event
|
||
keyseq (if vip-emacs-p
|
||
"\e"
|
||
(vector (character-to-event ?\e)))))
|
||
((and vip-xemacs-p
|
||
(key-press-event-p first-key)
|
||
(equal '(meta) key-mod))
|
||
(vip-set-unread-command-events
|
||
(vconcat (vector
|
||
(character-to-event (event-key first-key)))
|
||
(subseq keyseq 1)))
|
||
(setq last-input-event event
|
||
keyseq (vector (character-to-event ?\e))))
|
||
((eventp first-key)
|
||
(setq last-command-event first-key))
|
||
))
|
||
) ; end progn
|
||
|
||
;; this is escape event with nothing after it
|
||
;; put in unread-command-event and then re-read
|
||
(vip-set-unread-command-events event)
|
||
(setq keyseq
|
||
(funcall (ad-get-orig-definition 'read-key-sequence) nil))
|
||
))
|
||
;; not an escape event
|
||
(setq keyseq (vector event)))
|
||
keyseq))
|
||
|
||
|
||
|
||
(defadvice read-key-sequence (around vip-read-keyseq-ad activate)
|
||
"Harness to work for Viper. This advice is harmless---don't worry!"
|
||
(let (inhibit-quit event keyseq)
|
||
(setq keyseq ad-do-it)
|
||
(setq event (if vip-xemacs-p
|
||
(elt keyseq 0) ; XEmacs returns vector of events
|
||
(elt (listify-key-sequence keyseq) 0)))
|
||
(if (vip-ESC-event-p event)
|
||
(let (unread-command-events)
|
||
(vip-set-unread-command-events keyseq)
|
||
(if (vip-fast-keysequence-p)
|
||
(let ((vip-vi-global-user-minor-mode nil)
|
||
(vip-vi-local-user-minor-mode nil)
|
||
(vip-replace-minor-mode nil) ; actually unnecessary
|
||
(vip-insert-global-user-minor-mode nil)
|
||
(vip-insert-local-user-minor-mode nil))
|
||
(setq keyseq ad-do-it))
|
||
(setq keyseq ad-do-it))))
|
||
keyseq))
|
||
|
||
(defadvice describe-key (before vip-read-keyseq-ad protect activate)
|
||
"Force to read key via `read-key-sequence'."
|
||
(interactive (list (vip-events-to-keys
|
||
(read-key-sequence "Describe key: ")))))
|
||
|
||
(defadvice describe-key-briefly (before vip-read-keyseq-ad protect activate)
|
||
"Force to read key via `read-key-sequence'."
|
||
(interactive (list (vip-events-to-keys
|
||
(read-key-sequence "Describe key briefly: ")))))
|
||
|
||
;; Listen to ESC key.
|
||
;; If a sequence of keys starting with ESC is issued with very short delays,
|
||
;; interpret these keys in Emacs mode, so ESC won't be interpreted as a Vi key.
|
||
(defun vip-intercept-ESC-key ()
|
||
"Function that implements ESC key in Viper emulation of Vi."
|
||
(interactive)
|
||
(let ((cmd (or (key-binding (vip-envelop-ESC-key))
|
||
'(lambda () (interactive) (error "")))))
|
||
|
||
;; call the actual function to execute ESC (if no other symbols followed)
|
||
;; or the key bound to the ESC sequence (if the sequence was issued
|
||
;; with very short delay between characters.
|
||
(if (eq cmd 'vip-intercept-ESC-key)
|
||
(setq cmd
|
||
(cond ((eq vip-current-state 'vi-state)
|
||
'vip-ESC)
|
||
((eq vip-current-state 'insert-state)
|
||
'vip-exit-insert-state)
|
||
((eq vip-current-state 'replace-state)
|
||
'vip-replace-state-exit-cmd)
|
||
(t 'vip-change-state-to-vi)
|
||
)))
|
||
(call-interactively cmd)))
|
||
|
||
|
||
|
||
;; prefix argument for Vi mode
|
||
|
||
;; In Vi mode, prefix argument is a dotted pair (NUM . COM) where NUM
|
||
;; represents the numeric value of the prefix argument and COM represents
|
||
;; command prefix such as "c", "d", "m" and "y".
|
||
|
||
;; Get value part of prefix-argument ARG.
|
||
(defsubst vip-p-val (arg)
|
||
(cond ((null arg) 1)
|
||
((consp arg)
|
||
(if (or (null (car arg)) (equal (car arg) '(nil)))
|
||
1 (car arg)))
|
||
(t arg)))
|
||
|
||
;; Get raw value part of prefix-argument ARG.
|
||
(defsubst vip-P-val (arg)
|
||
(cond ((consp arg) (car arg))
|
||
(t arg)))
|
||
|
||
;; Get com part of prefix-argument ARG.
|
||
(defsubst vip-getcom (arg)
|
||
(cond ((null arg) nil)
|
||
((consp arg) (cdr arg))
|
||
(t nil)))
|
||
|
||
;; Get com part of prefix-argument ARG and modify it.
|
||
(defun vip-getCom (arg)
|
||
(let ((com (vip-getcom arg)))
|
||
(cond ((equal com ?c) ?C)
|
||
((equal com ?d) ?D)
|
||
((equal com ?y) ?Y)
|
||
(t com))))
|
||
|
||
|
||
;; Compute numeric prefix arg value.
|
||
;; Invoked by CHAR. COM is the command part obtained so far.
|
||
(defun vip-prefix-arg-value (event com)
|
||
(let (value)
|
||
;; read while number
|
||
(while (and (numberp event) (>= event ?0) (<= event ?9))
|
||
(setq value (+ (* (if (numberp value) value 0) 10) (- event ?0)))
|
||
(setq event (vip-read-event-convert-to-char)))
|
||
|
||
(setq prefix-arg value)
|
||
(if com (setq prefix-arg (cons prefix-arg com)))
|
||
(while (eq event ?U)
|
||
(vip-describe-arg prefix-arg)
|
||
(setq event (vip-read-event-convert-to-char)))
|
||
(vip-set-unread-command-events event)))
|
||
|
||
;; Vi operator as prefix argument."
|
||
(defun vip-prefix-arg-com (char value com)
|
||
(let ((cont t))
|
||
(while (and cont
|
||
(memq char
|
||
(list ?c ?d ?y ?! ?< ?> ?= ?# ?r ?R ?\"
|
||
vip-buffer-search-char)))
|
||
(if com
|
||
;; this means that we already have a command character, so we
|
||
;; construct a com list and exit while. however, if char is "
|
||
;; it is an error.
|
||
(progn
|
||
;; new com is (CHAR . OLDCOM)
|
||
(if (memq char '(?# ?\")) (error ""))
|
||
(setq com (cons char com))
|
||
(setq cont nil))
|
||
;; If com is nil we set com as char, and read more. Again, if char
|
||
;; is ", we read the name of register and store it in vip-use-register.
|
||
;; if char is !, =, or #, a complete com is formed so we exit the
|
||
;; while loop.
|
||
(cond ((memq char '(?! ?=))
|
||
(setq com char)
|
||
(setq char (read-char))
|
||
(setq cont nil))
|
||
((= char ?#)
|
||
;; read a char and encode it as com
|
||
(setq com (+ 128 (read-char)))
|
||
(setq char (read-char)))
|
||
((= char ?\")
|
||
(let ((reg (read-char)))
|
||
(if (vip-valid-register reg)
|
||
(setq vip-use-register reg)
|
||
(error ""))
|
||
(setq char (read-char))))
|
||
(t
|
||
(setq com char)
|
||
(setq char (vip-read-char-exclusive)))))))
|
||
(if (atom com)
|
||
;; com is a single char, so we construct prefix-arg
|
||
;; and if char is ?, describe prefix arg, otherwise exit by
|
||
;; pushing the char back into vip-set-unread-command-events
|
||
;; Since char is a command, the command will execute with the prefix
|
||
;; argument that we just constructed.
|
||
(progn
|
||
(setq prefix-arg (cons value com))
|
||
(while (= char ?U)
|
||
(vip-describe-arg prefix-arg)
|
||
(setq char (read-char)))
|
||
(vip-set-unread-command-events char)
|
||
)
|
||
;; as com is non-nil, this means that we have a command to execute
|
||
(if (memq (car com) '(?r ?R))
|
||
;; execute apropriate region command.
|
||
(let ((char (car com)) (com (cdr com)))
|
||
(setq prefix-arg (cons value com))
|
||
(if (= char ?r) (vip-region prefix-arg)
|
||
(vip-Region prefix-arg))
|
||
;; reset prefix-arg
|
||
(setq prefix-arg nil))
|
||
;; otherwise, reset prefix arg and call appropriate command
|
||
(setq value (if (null value) 1 value))
|
||
(setq prefix-arg nil)
|
||
(cond ((equal com '(?c . ?c)) (vip-line (cons value ?C)))
|
||
((equal com '(?d . ?d)) (vip-line (cons value ?D)))
|
||
((equal com '(?d . ?y)) (vip-yank-defun))
|
||
((equal com '(?y . ?y)) (vip-line (cons value ?Y)))
|
||
((equal com '(?< . ?<)) (vip-line (cons value ?<)))
|
||
((equal com '(?> . ?>)) (vip-line (cons value ?>)))
|
||
((equal com '(?! . ?!)) (vip-line (cons value ?!)))
|
||
((equal com '(?= . ?=)) (vip-line (cons value ?=)))
|
||
(t (error ""))))))
|
||
|
||
(defun vip-describe-arg (arg)
|
||
(let (val com)
|
||
(setq val (vip-P-val arg)
|
||
com (vip-getcom arg))
|
||
(if (null val)
|
||
(if (null com)
|
||
(message "Value is nil, and command is nil")
|
||
(message "Value is nil, and command is `%c'" com))
|
||
(if (null com)
|
||
(message "Value is `%d', and command is nil" val)
|
||
(message "Value is `%d', and command is `%c'" val com)))))
|
||
|
||
(defun vip-digit-argument (arg)
|
||
"Begin numeric argument for the next command."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(vip-prefix-arg-value last-command-char
|
||
(if (consp arg) (cdr arg) nil)))
|
||
|
||
(defun vip-command-argument (arg)
|
||
"Accept a motion command as an argument."
|
||
(interactive "P")
|
||
(condition-case nil
|
||
(vip-prefix-arg-com
|
||
last-command-char
|
||
(cond ((null arg) nil)
|
||
((consp arg) (car arg))
|
||
((numberp arg) arg)
|
||
(t (error vip-InvalidCommandArgument)))
|
||
(cond ((null arg) nil)
|
||
((consp arg) (cdr arg))
|
||
((numberp arg) nil)
|
||
(t (error vip-InvalidCommandArgument))))
|
||
(quit (setq vip-use-register nil)
|
||
(signal 'quit nil)))
|
||
(vip-deactivate-mark))
|
||
|
||
|
||
;; repeat last destructive command
|
||
|
||
;; Append region to text in register REG.
|
||
;; START and END are buffer positions indicating what to append.
|
||
(defsubst vip-append-to-register (reg start end)
|
||
(set-register reg (concat (if (stringp (get-register reg))
|
||
(get-register reg) "")
|
||
(buffer-substring start end))))
|
||
|
||
;; Saves last inserted text for possible use by vip-repeat command.
|
||
(defun vip-save-last-insertion (beg end)
|
||
(setq vip-last-insertion (buffer-substring beg end))
|
||
(or (< (length vip-d-com) 5)
|
||
(setcar (nthcdr 4 vip-d-com) vip-last-insertion))
|
||
(or (null vip-command-ring)
|
||
(ring-empty-p vip-command-ring)
|
||
(progn
|
||
(setcar (nthcdr 4 (vip-current-ring-item vip-command-ring))
|
||
vip-last-insertion)
|
||
;; del most recent elt, if identical to the second most-recent
|
||
(vip-cleanup-ring vip-command-ring)))
|
||
)
|
||
|
||
(defsubst vip-yank-last-insertion ()
|
||
"Inserts the text saved by the previous vip-save-last-insertion command."
|
||
(condition-case nil
|
||
(insert vip-last-insertion)
|
||
(error nil)))
|
||
|
||
|
||
;; define functions to be executed
|
||
|
||
;; invoked by the `C' command
|
||
(defun vip-exec-change (m-com com)
|
||
;; handle C cmd at the eol and at eob.
|
||
(if (or (and (eolp) (= vip-com-point (point)))
|
||
(= vip-com-point (point-max)))
|
||
(progn
|
||
(insert " ")(backward-char 1)))
|
||
(if (= vip-com-point (point))
|
||
(vip-forward-char-carefully))
|
||
(if (= com ?c)
|
||
(vip-change vip-com-point (point))
|
||
(vip-change-subr vip-com-point (point))))
|
||
|
||
;; this is invoked by vip-substitute-line
|
||
(defun vip-exec-Change (m-com com)
|
||
(save-excursion
|
||
(set-mark vip-com-point)
|
||
(vip-enlarge-region (mark t) (point))
|
||
(if vip-use-register
|
||
(progn
|
||
(cond ((vip-valid-register vip-use-register '(letter digit))
|
||
;;(vip-valid-register vip-use-register '(letter)
|
||
(copy-to-register
|
||
vip-use-register (mark t) (point) nil))
|
||
((vip-valid-register vip-use-register '(Letter))
|
||
(vip-append-to-register
|
||
(downcase vip-use-register) (mark t) (point)))
|
||
(t (setq vip-use-register nil)
|
||
(error vip-InvalidRegister vip-use-register)))
|
||
(setq vip-use-register nil)))
|
||
(delete-region (mark t) (point)))
|
||
(open-line 1)
|
||
(if (= com ?C) (vip-change-mode-to-insert) (vip-yank-last-insertion)))
|
||
|
||
(defun vip-exec-delete (m-com com)
|
||
(if vip-use-register
|
||
(progn
|
||
(cond ((vip-valid-register vip-use-register '(letter digit))
|
||
;;(vip-valid-register vip-use-register '(letter))
|
||
(copy-to-register
|
||
vip-use-register vip-com-point (point) nil))
|
||
((vip-valid-register vip-use-register '(Letter))
|
||
(vip-append-to-register
|
||
(downcase vip-use-register) vip-com-point (point)))
|
||
(t (setq vip-use-register nil)
|
||
(error vip-InvalidRegister vip-use-register)))
|
||
(setq vip-use-register nil)))
|
||
(setq last-command
|
||
(if (eq last-command 'd-command) 'kill-region nil))
|
||
(kill-region vip-com-point (point))
|
||
(setq this-command 'd-command)
|
||
(if vip-ex-style-motion
|
||
(if (and (eolp) (not (bolp))) (backward-char 1))))
|
||
|
||
(defun vip-exec-Delete (m-com com)
|
||
(save-excursion
|
||
(set-mark vip-com-point)
|
||
(vip-enlarge-region (mark t) (point))
|
||
(if vip-use-register
|
||
(progn
|
||
(cond ((vip-valid-register vip-use-register '(letter digit))
|
||
;;(vip-valid-register vip-use-register '(letter))
|
||
(copy-to-register
|
||
vip-use-register (mark t) (point) nil))
|
||
((vip-valid-register vip-use-register '(Letter))
|
||
(vip-append-to-register
|
||
(downcase vip-use-register) (mark t) (point)))
|
||
(t (setq vip-use-register nil)
|
||
(error vip-InvalidRegister vip-use-register)))
|
||
(setq vip-use-register nil)))
|
||
(setq last-command
|
||
(if (eq last-command 'D-command) 'kill-region nil))
|
||
(kill-region (mark t) (point))
|
||
(if (eq m-com 'vip-line) (setq this-command 'D-command)))
|
||
(back-to-indentation))
|
||
|
||
(defun vip-exec-yank (m-com com)
|
||
(if vip-use-register
|
||
(progn
|
||
(cond ((vip-valid-register vip-use-register '(letter digit))
|
||
;; (vip-valid-register vip-use-register '(letter))
|
||
(copy-to-register
|
||
vip-use-register vip-com-point (point) nil))
|
||
((vip-valid-register vip-use-register '(Letter))
|
||
(vip-append-to-register
|
||
(downcase vip-use-register) vip-com-point (point)))
|
||
(t (setq vip-use-register nil)
|
||
(error vip-InvalidRegister vip-use-register)))
|
||
(setq vip-use-register nil)))
|
||
(setq last-command nil)
|
||
(copy-region-as-kill vip-com-point (point))
|
||
(goto-char vip-com-point))
|
||
|
||
(defun vip-exec-Yank (m-com com)
|
||
(save-excursion
|
||
(set-mark vip-com-point)
|
||
(vip-enlarge-region (mark t) (point))
|
||
(if vip-use-register
|
||
(progn
|
||
(cond ((vip-valid-register vip-use-register '(letter digit))
|
||
(copy-to-register
|
||
vip-use-register (mark t) (point) nil))
|
||
((vip-valid-register vip-use-register '(Letter))
|
||
(vip-append-to-register
|
||
(downcase vip-use-register) (mark t) (point)))
|
||
(t (setq vip-use-register nil)
|
||
(error vip-InvalidRegister vip-use-register)))
|
||
(setq vip-use-register nil)))
|
||
(setq last-command nil)
|
||
(copy-region-as-kill (mark t) (point)))
|
||
(vip-deactivate-mark)
|
||
(goto-char vip-com-point))
|
||
|
||
(defun vip-exec-bang (m-com com)
|
||
(save-excursion
|
||
(set-mark vip-com-point)
|
||
(vip-enlarge-region (mark t) (point))
|
||
(shell-command-on-region
|
||
(mark t) (point)
|
||
(if (= com ?!)
|
||
(setq vip-last-shell-com
|
||
(vip-read-string-with-history
|
||
"!"
|
||
nil
|
||
'vip-shell-history
|
||
(car vip-shell-history)
|
||
))
|
||
vip-last-shell-com)
|
||
t)))
|
||
|
||
(defun vip-exec-equals (m-com com)
|
||
(save-excursion
|
||
(set-mark vip-com-point)
|
||
(vip-enlarge-region (mark t) (point))
|
||
(if (> (mark t) (point)) (exchange-point-and-mark))
|
||
(indent-region (mark t) (point) nil)))
|
||
|
||
(defun vip-exec-shift (m-com com)
|
||
(save-excursion
|
||
(set-mark vip-com-point)
|
||
(vip-enlarge-region (mark t) (point))
|
||
(if (> (mark t) (point)) (exchange-point-and-mark))
|
||
(indent-rigidly (mark t) (point)
|
||
(if (= com ?>)
|
||
vip-shift-width
|
||
(- vip-shift-width))))
|
||
;; return point to where it was before shift
|
||
(goto-char vip-com-point))
|
||
|
||
;; this is needed because some commands fake com by setting it to ?r, which
|
||
;; denotes repeated insert command.
|
||
(defsubst vip-exec-dummy (m-com com)
|
||
nil)
|
||
|
||
(defun vip-exec-buffer-search (m-com com)
|
||
(setq vip-s-string (buffer-substring (point) vip-com-point))
|
||
(setq vip-s-forward t)
|
||
(setq vip-search-history (cons vip-s-string vip-search-history))
|
||
(vip-search vip-s-string vip-s-forward 1))
|
||
|
||
(defvar vip-exec-array (make-vector 128 nil))
|
||
|
||
;; Using a dispatch array allows adding functions like buffer search
|
||
;; without affecting other functions. Buffer search can now be bound
|
||
;; to any character.
|
||
|
||
(aset vip-exec-array ?c 'vip-exec-change)
|
||
(aset vip-exec-array ?C 'vip-exec-Change)
|
||
(aset vip-exec-array ?d 'vip-exec-delete)
|
||
(aset vip-exec-array ?D 'vip-exec-Delete)
|
||
(aset vip-exec-array ?y 'vip-exec-yank)
|
||
(aset vip-exec-array ?Y 'vip-exec-Yank)
|
||
(aset vip-exec-array ?r 'vip-exec-dummy)
|
||
(aset vip-exec-array ?! 'vip-exec-bang)
|
||
(aset vip-exec-array ?< 'vip-exec-shift)
|
||
(aset vip-exec-array ?> 'vip-exec-shift)
|
||
(aset vip-exec-array ?= 'vip-exec-equals)
|
||
|
||
|
||
|
||
;; This function is called by various movement commands to execute a
|
||
;; destructive command on the region specified by the movement command. For
|
||
;; instance, if the user types cw, then the command vip-forward-word will
|
||
;; call vip-execute-com to execute vip-exec-change, which eventually will
|
||
;; call vip-change to invoke the replace mode on the region.
|
||
;;
|
||
;; The list (M-COM VAL COM REG INSETED-TEXT COMMAND-KEYS) is set to
|
||
;; vip-d-com for later use by vip-repeat.
|
||
(defun vip-execute-com (m-com val com)
|
||
(let ((reg vip-use-register))
|
||
;; this is the special command `#'
|
||
(if (> com 128)
|
||
(vip-special-prefix-com (- com 128))
|
||
(let ((fn (aref vip-exec-array (if (< com 0) (- com) com))))
|
||
(if (null fn)
|
||
(error "%c: %s" com vip-InvalidViCommand)
|
||
(funcall fn m-com com))))
|
||
(if (vip-dotable-command-p com)
|
||
(vip-set-destructive-command
|
||
(list m-com val
|
||
(if (memq com (list ?c ?C ?!)) (- com) com)
|
||
reg nil nil)))
|
||
))
|
||
|
||
|
||
(defun vip-repeat (arg)
|
||
"Re-execute last destructive command.
|
||
Use the info in vip-d-com, which has the form
|
||
\(com val ch reg inserted-text command-keys\),
|
||
where `com' is the command to be re-executed, `val' is the
|
||
argument to `com', `ch' is a flag for repeat, and `reg' is optional;
|
||
if it exists, it is the name of the register for `com'.
|
||
If the prefix argument, ARG, is non-nil, it is used instead of `val'."
|
||
(interactive "P")
|
||
(let ((save-point (point)) ; save point before repeating prev cmd
|
||
;; Pass along that we are repeating a destructive command
|
||
;; This tells vip-set-destructive-command not to update
|
||
;; vip-command-ring
|
||
(vip-intermediate-command 'vip-repeat))
|
||
(if (eq last-command 'vip-undo)
|
||
;; if the last command was vip-undo, then undo-more
|
||
(vip-undo-more)
|
||
;; otherwise execute the command stored in vip-d-com. if arg is non-nil
|
||
;; its prefix value is used as new prefix value for the command.
|
||
(let ((m-com (car vip-d-com))
|
||
(val (vip-P-val arg))
|
||
(com (nth 2 vip-d-com))
|
||
(reg (nth 3 vip-d-com)))
|
||
(if (null val) (setq val (nth 1 vip-d-com)))
|
||
(if (null m-com) (error "No previous command to repeat."))
|
||
(setq vip-use-register reg)
|
||
(if (nth 4 vip-d-com) ; text inserted by command
|
||
(setq vip-last-insertion (nth 4 vip-d-com)
|
||
vip-d-char (nth 4 vip-d-com)))
|
||
(funcall m-com (cons val com))
|
||
(if (and vip-keep-point-on-repeat (< save-point (point)))
|
||
(goto-char save-point)) ; go back to before repeat.
|
||
(if (and (eolp) (not (bolp)))
|
||
(backward-char 1))
|
||
))
|
||
(if vip-undo-needs-adjustment (vip-adjust-undo)) ; take care of undo
|
||
;; If the prev cmd was rotating the command ring, this means that `.' has
|
||
;; just executed a command from that ring. So, push it on the ring again.
|
||
;; If we are just executing previous command , then don't push vip-d-com
|
||
;; because vip-d-com is not fully constructed in this case (its keys and
|
||
;; the inserted text may be nil). Besides, in this case, the command
|
||
;; executed by `.' is already on the ring.
|
||
(if (eq last-command 'vip-display-current-destructive-command)
|
||
(vip-push-onto-ring vip-d-com 'vip-command-ring))
|
||
(vip-deactivate-mark)
|
||
))
|
||
|
||
(defun vip-repeat-from-history ()
|
||
"Repeat a destructive command from history.
|
||
Doesn't change vip-command-ring in any way, so `.' will work as before
|
||
executing this command.
|
||
This command is supposed to be bound to a two-character Vi macro where
|
||
the second character is a digit 0 to 9. The digit indicates which
|
||
history command to execute. `<char>0' is equivalent to `.', `<char>1'
|
||
invokes the command before that, etc."
|
||
(interactive)
|
||
(let* ((vip-intermediate-command 'repeating-display-destructive-command)
|
||
(idx (cond (vip-this-kbd-macro
|
||
(string-to-number
|
||
(symbol-name (elt vip-this-kbd-macro 1))))
|
||
(t 0)))
|
||
(num idx)
|
||
(vip-d-com vip-d-com))
|
||
|
||
(or (and (numberp num) (<= 0 num) (<= num 9))
|
||
(progn
|
||
(setq idx 0
|
||
num 0)
|
||
(message
|
||
"`vip-repeat-from-history' must be invoked as a Vi macro bound to `<key><digit>'")))
|
||
(while (< 0 num)
|
||
(setq vip-d-com (vip-special-ring-rotate1 vip-command-ring -1))
|
||
(setq num (1- num)))
|
||
(vip-repeat nil)
|
||
(while (> idx num)
|
||
(vip-special-ring-rotate1 vip-command-ring 1)
|
||
(setq num (1+ num)))
|
||
))
|
||
|
||
|
||
;; This command is invoked interactively by the key sequence #<char>
|
||
(defun vip-special-prefix-com (char)
|
||
(cond ((= char ?c)
|
||
(downcase-region (min vip-com-point (point))
|
||
(max vip-com-point (point))))
|
||
((= char ?C)
|
||
(upcase-region (min vip-com-point (point))
|
||
(max vip-com-point (point))))
|
||
((= char ?g)
|
||
(push-mark vip-com-point t)
|
||
(vip-global-execute))
|
||
((= char ?q)
|
||
(push-mark vip-com-point t)
|
||
(vip-quote-region))
|
||
((= char ?s) (funcall vip-spell-function vip-com-point (point)))
|
||
(t (error "#%c: %s" char vip-InvalidViCommand))))
|
||
|
||
|
||
;; undoing
|
||
|
||
(defun vip-undo ()
|
||
"Undo previous change."
|
||
(interactive)
|
||
(message "undo!")
|
||
(let ((modified (buffer-modified-p))
|
||
(before-undo-pt (point-marker))
|
||
(after-change-functions after-change-functions)
|
||
undo-beg-posn undo-end-posn)
|
||
|
||
;; no need to remove this hook, since this var has scope inside a let.
|
||
(add-hook 'after-change-functions
|
||
'(lambda (beg end len)
|
||
(setq undo-beg-posn beg
|
||
undo-end-posn (or end beg))))
|
||
|
||
(undo-start)
|
||
(undo-more 2)
|
||
(setq undo-beg-posn (or undo-beg-posn before-undo-pt)
|
||
undo-end-posn (or undo-end-posn undo-beg-posn))
|
||
|
||
(goto-char undo-beg-posn)
|
||
(sit-for 0)
|
||
(if (and vip-keep-point-on-undo
|
||
(pos-visible-in-window-p before-undo-pt))
|
||
(progn
|
||
(push-mark (point-marker) t)
|
||
(vip-sit-for-short 300)
|
||
(goto-char undo-end-posn)
|
||
(vip-sit-for-short 300)
|
||
(if (and (> (abs (- undo-beg-posn before-undo-pt)) 1)
|
||
(> (abs (- undo-end-posn before-undo-pt)) 1))
|
||
(goto-char before-undo-pt)
|
||
(goto-char undo-beg-posn)))
|
||
(push-mark before-undo-pt t))
|
||
(if (and (eolp) (not (bolp))) (backward-char 1))
|
||
(if (not modified) (set-buffer-modified-p t)))
|
||
(setq this-command 'vip-undo))
|
||
|
||
;; Continue undoing previous changes.
|
||
(defun vip-undo-more ()
|
||
(message "undo more!")
|
||
(condition-case nil
|
||
(undo-more 1)
|
||
(error (beep)
|
||
(message "No further undo information in this buffer")))
|
||
(if (and (eolp) (not (bolp))) (backward-char 1))
|
||
(setq this-command 'vip-undo))
|
||
|
||
;; The following two functions are used to set up undo properly.
|
||
;; In VI, unlike Emacs, if you open a line, say, and add a bunch of lines,
|
||
;; they are undone all at once.
|
||
(defun vip-adjust-undo ()
|
||
(let ((inhibit-quit t)
|
||
tmp tmp2)
|
||
(setq vip-undo-needs-adjustment nil)
|
||
(if (listp buffer-undo-list)
|
||
(if (setq tmp (memq vip-buffer-undo-list-mark buffer-undo-list))
|
||
(progn
|
||
(setq tmp2 (cdr tmp)) ; the part after mark
|
||
|
||
;; cut tail from buffer-undo-list temporarily by direct
|
||
;; manipulation with pointers in buffer-undo-list
|
||
(setcdr tmp nil)
|
||
|
||
(setq buffer-undo-list (delq nil buffer-undo-list))
|
||
(setq buffer-undo-list
|
||
(delq vip-buffer-undo-list-mark buffer-undo-list))
|
||
;; restore tail of buffer-undo-list
|
||
(setq buffer-undo-list (nconc buffer-undo-list tmp2)))
|
||
(setq buffer-undo-list (delq nil buffer-undo-list))))))
|
||
|
||
|
||
(defun vip-set-complex-command-for-undo ()
|
||
(if (listp buffer-undo-list)
|
||
(if (not vip-undo-needs-adjustment)
|
||
(let ((inhibit-quit t))
|
||
(setq buffer-undo-list
|
||
(cons vip-buffer-undo-list-mark buffer-undo-list))
|
||
(setq vip-undo-needs-adjustment t)))))
|
||
|
||
|
||
|
||
|
||
(defun vip-display-current-destructive-command ()
|
||
(let ((text (nth 4 vip-d-com))
|
||
(keys (nth 5 vip-d-com))
|
||
(max-text-len 30))
|
||
|
||
(setq this-command 'vip-display-current-destructive-command)
|
||
|
||
(message " `.' runs %s%s"
|
||
(concat "`" (vip-array-to-string keys) "'")
|
||
(vip-abbreviate-string text max-text-len
|
||
" inserting `" "'" " ......."))
|
||
))
|
||
|
||
|
||
;; don't change vip-d-com if it was vip-repeat command invoked with `.'
|
||
;; or in some other way (non-interactively).
|
||
(defun vip-set-destructive-command (list)
|
||
(or (eq vip-intermediate-command 'vip-repeat)
|
||
(progn
|
||
(setq vip-d-com list)
|
||
(setcar (nthcdr 5 vip-d-com)
|
||
(vip-array-to-string (this-command-keys)))
|
||
(vip-push-onto-ring vip-d-com 'vip-command-ring))))
|
||
|
||
(defun vip-prev-destructive-command (next)
|
||
"Find previous destructive command in the history of destructive commands.
|
||
With prefix argument, find next destructive command."
|
||
(interactive "P")
|
||
(let (cmd vip-intermediate-command)
|
||
(if (eq last-command 'vip-display-current-destructive-command)
|
||
;; repeated search through command history
|
||
(setq vip-intermediate-command 'repeating-display-destructive-command)
|
||
;; first search through command history--set temp ring
|
||
(setq vip-temp-command-ring (copy-list vip-command-ring)))
|
||
(setq cmd (if next
|
||
(vip-special-ring-rotate1 vip-temp-command-ring 1)
|
||
(vip-special-ring-rotate1 vip-temp-command-ring -1)))
|
||
(if (null cmd)
|
||
()
|
||
(setq vip-d-com cmd))
|
||
(vip-display-current-destructive-command)))
|
||
|
||
(defun vip-next-destructive-command ()
|
||
"Find next destructive command in the history of destructive commands."
|
||
(interactive)
|
||
(vip-prev-destructive-command 'next))
|
||
|
||
(defun vip-insert-prev-from-insertion-ring (arg)
|
||
"Cycle through insertion ring in the direction of older insertions.
|
||
Undoes previous insertion and inserts new.
|
||
With prefix argument, cycles in the direction of newer elements.
|
||
In minibuffer, this command executes whatever the invocation key is bound
|
||
to in the global map, instead of cycling through the insertion ring."
|
||
(interactive "P")
|
||
(let (vip-intermediate-command)
|
||
(if (eq last-command 'vip-insert-from-insertion-ring)
|
||
(progn ; repeated search through insertion history
|
||
(setq vip-intermediate-command 'repeating-insertion-from-ring)
|
||
(if (eq vip-current-state 'replace-state)
|
||
(undo 1)
|
||
(if vip-last-inserted-string-from-insertion-ring
|
||
(backward-delete-char
|
||
(length vip-last-inserted-string-from-insertion-ring))))
|
||
)
|
||
;;first search through insertion history
|
||
(setq vip-temp-insertion-ring (copy-list vip-insertion-ring)))
|
||
(setq this-command 'vip-insert-from-insertion-ring)
|
||
;; so that things will be undone properly
|
||
(setq buffer-undo-list (cons nil buffer-undo-list))
|
||
(setq vip-last-inserted-string-from-insertion-ring
|
||
(vip-special-ring-rotate1 vip-temp-insertion-ring (if arg 1 -1)))
|
||
|
||
;; this change of vip-intermediate-command must come after
|
||
;; vip-special-ring-rotate1, so that the ring will rotate, but before the
|
||
;; insertion.
|
||
(setq vip-intermediate-command nil)
|
||
(if vip-last-inserted-string-from-insertion-ring
|
||
(insert vip-last-inserted-string-from-insertion-ring))
|
||
))
|
||
|
||
(defun vip-insert-next-from-insertion-ring ()
|
||
"Cycle through insertion ring in the direction of older insertions.
|
||
Undo previous insertion and inserts new."
|
||
(interactive)
|
||
(vip-insert-prev-from-insertion-ring 'next))
|
||
|
||
|
||
;; some region utilities
|
||
|
||
;; If at the last line of buffer, add \\n before eob, if newline is missing.
|
||
(defun vip-add-newline-at-eob-if-necessary ()
|
||
(save-excursion
|
||
(end-of-line)
|
||
;; make sure all lines end with newline, unless in the minibuffer or
|
||
;; when requested otherwise (require-final-newline is nil)
|
||
(if (and
|
||
(eobp)
|
||
(not (bolp))
|
||
require-final-newline
|
||
(not (vip-is-in-minibuffer)))
|
||
(insert "\n"))))
|
||
|
||
(defun vip-yank-defun ()
|
||
(mark-defun)
|
||
(copy-region-as-kill (point) (mark t)))
|
||
|
||
;; Enlarge region between BEG and END.
|
||
(defun vip-enlarge-region (beg end)
|
||
(or beg (setq beg end)) ; if beg is nil, set to end
|
||
(or end (setq end beg)) ; if end is nil, set to beg
|
||
|
||
(if (< beg end)
|
||
(progn (goto-char beg) (set-mark end))
|
||
(goto-char end)
|
||
(set-mark beg))
|
||
(beginning-of-line)
|
||
(exchange-point-and-mark)
|
||
(if (or (not (eobp)) (not (bolp))) (forward-line 1))
|
||
(if (not (eobp)) (beginning-of-line))
|
||
(if (> beg end) (exchange-point-and-mark)))
|
||
|
||
|
||
;; Quote region by each line with a user supplied string.
|
||
(defun vip-quote-region ()
|
||
(setq vip-quote-string
|
||
(vip-read-string-with-history
|
||
"Quote string: "
|
||
nil
|
||
'vip-quote-region-history
|
||
vip-quote-string))
|
||
(vip-enlarge-region (point) (mark t))
|
||
(if (> (point) (mark t)) (exchange-point-and-mark))
|
||
(insert vip-quote-string)
|
||
(beginning-of-line)
|
||
(forward-line 1)
|
||
(while (and (< (point) (mark t)) (bolp))
|
||
(insert vip-quote-string)
|
||
(beginning-of-line)
|
||
(forward-line 1)))
|
||
|
||
;; Tells whether BEG is on the same line as END.
|
||
;; If one of the args is nil, it'll return nil.
|
||
(defun vip-same-line (beg end)
|
||
(let ((selective-display nil))
|
||
(cond ((and beg end)
|
||
;; This 'if' is needed because Emacs treats the next empty line
|
||
;; as part of the previous line.
|
||
(if (or (> beg (point-max)) (> end (point-max))) ; out of range
|
||
()
|
||
(if (and (> end beg) (= (vip-line-pos 'start) end))
|
||
(setq end (min (1+ end) (point-max))))
|
||
(if (and (> beg end) (= (vip-line-pos 'start) beg))
|
||
(setq beg (min (1+ beg) (point-max))))
|
||
(<= (count-lines beg end) 1) ))
|
||
|
||
(t nil))
|
||
))
|
||
|
||
|
||
;; Check if the string ends with a newline.
|
||
(defun vip-end-with-a-newline-p (string)
|
||
(or (string= string "")
|
||
(= (vip-seq-last-elt string) ?\n)))
|
||
|
||
(defun vip-tmp-insert-at-eob (msg)
|
||
(let ((savemax (point-max)))
|
||
(goto-char savemax)
|
||
(insert msg)
|
||
(sit-for 2)
|
||
(goto-char savemax) (delete-region (point) (point-max))
|
||
))
|
||
|
||
|
||
|
||
;;; Minibuffer business
|
||
|
||
(defsubst vip-set-minibuffer-style ()
|
||
(add-hook 'minibuffer-setup-hook 'vip-minibuffer-setup-sentinel))
|
||
|
||
|
||
(defun vip-minibuffer-setup-sentinel ()
|
||
(let ((hook (if vip-vi-style-in-minibuffer
|
||
'vip-change-state-to-insert
|
||
'vip-change-state-to-emacs)))
|
||
(funcall hook)
|
||
))
|
||
|
||
;; Interpret last event in the local map
|
||
(defun vip-exit-minibuffer ()
|
||
(interactive)
|
||
(let (command)
|
||
(setq command (local-key-binding (char-to-string last-command-char)))
|
||
(if command
|
||
(command-execute command)
|
||
(exit-minibuffer))))
|
||
|
||
|
||
(defun vip-set-search-face ()
|
||
(if (vip-has-face-support-p)
|
||
(defvar vip-search-face
|
||
(progn
|
||
(make-face 'vip-search-face)
|
||
(vip-hide-face 'vip-search-face)
|
||
(or (face-differs-from-default-p 'vip-search-face)
|
||
;; face wasn't set in .vip or .Xdefaults
|
||
(if (vip-can-use-colors "Black" "khaki")
|
||
(progn
|
||
(set-face-background 'vip-search-face "khaki")
|
||
(set-face-foreground 'vip-search-face "Black"))
|
||
(copy-face 'italic 'vip-search-face)
|
||
(set-face-underline-p 'vip-search-face t)))
|
||
'vip-search-face)
|
||
"*Face used to flash out the search pattern.")
|
||
))
|
||
|
||
|
||
(defun vip-set-minibuffer-faces ()
|
||
(if (not (vip-has-face-support-p))
|
||
()
|
||
(defvar vip-minibuffer-emacs-face
|
||
(progn
|
||
(make-face 'vip-minibuffer-emacs-face)
|
||
(vip-hide-face 'vip-minibuffer-emacs-face)
|
||
(or (face-differs-from-default-p 'vip-minibuffer-emacs-face)
|
||
;; face wasn't set in .vip or .Xdefaults
|
||
(if vip-vi-style-in-minibuffer
|
||
;; emacs state is an exception in the minibuffer
|
||
(if (vip-can-use-colors "darkseagreen2" "Black")
|
||
(progn
|
||
(set-face-background
|
||
'vip-minibuffer-emacs-face "darkseagreen2")
|
||
(set-face-foreground
|
||
'vip-minibuffer-emacs-face "Black"))
|
||
(copy-face 'modeline 'vip-minibuffer-emacs-face))
|
||
;; emacs state is the main state in the minibuffer
|
||
(if (vip-can-use-colors "Black" "pink")
|
||
(progn
|
||
(set-face-background 'vip-minibuffer-emacs-face "pink")
|
||
(set-face-foreground
|
||
'vip-minibuffer-emacs-face "Black"))
|
||
(copy-face 'italic 'vip-minibuffer-emacs-face))
|
||
))
|
||
'vip-minibuffer-emacs-face)
|
||
"Face used in the Minibuffer when it is in Emacs state.")
|
||
|
||
(defvar vip-minibuffer-insert-face
|
||
(progn
|
||
(make-face 'vip-minibuffer-insert-face)
|
||
(vip-hide-face 'vip-minibuffer-insert-face)
|
||
(or (face-differs-from-default-p 'vip-minibuffer-insert-face)
|
||
(if vip-vi-style-in-minibuffer
|
||
(if (vip-can-use-colors "Black" "pink")
|
||
(progn
|
||
(set-face-background 'vip-minibuffer-insert-face "pink")
|
||
(set-face-foreground
|
||
'vip-minibuffer-insert-face "Black"))
|
||
(copy-face 'italic 'vip-minibuffer-insert-face))
|
||
;; If Insert state is an exception
|
||
(if (vip-can-use-colors "darkseagreen2" "Black")
|
||
(progn
|
||
(set-face-background
|
||
'vip-minibuffer-insert-face "darkseagreen2")
|
||
(set-face-foreground
|
||
'vip-minibuffer-insert-face "Black"))
|
||
(copy-face 'modeline 'vip-minibuffer-insert-face))
|
||
(vip-italicize-face 'vip-minibuffer-insert-face)))
|
||
'vip-minibuffer-insert-face)
|
||
"Face used in the Minibuffer when it is in Insert state.")
|
||
|
||
(defvar vip-minibuffer-vi-face
|
||
(progn
|
||
(make-face 'vip-minibuffer-vi-face)
|
||
(vip-hide-face 'vip-minibuffer-vi-face)
|
||
(or (face-differs-from-default-p 'vip-minibuffer-vi-face)
|
||
(if vip-vi-style-in-minibuffer
|
||
(if (vip-can-use-colors "Black" "grey")
|
||
(progn
|
||
(set-face-background 'vip-minibuffer-vi-face "grey")
|
||
(set-face-foreground 'vip-minibuffer-vi-face "Black"))
|
||
(copy-face 'bold 'vip-minibuffer-vi-face))
|
||
(copy-face 'bold 'vip-minibuffer-vi-face)
|
||
(invert-face 'vip-minibuffer-vi-face)))
|
||
'vip-minibuffer-vi-face)
|
||
"Face used in the Minibuffer when it is in Vi state.")
|
||
|
||
;; the current face used in the minibuffer
|
||
(vip-deflocalvar vip-minibuffer-current-face vip-minibuffer-emacs-face "")
|
||
))
|
||
|
||
|
||
|
||
;;; Reading string with history
|
||
|
||
(defun vip-read-string-with-history (prompt &optional initial
|
||
history-var default keymap)
|
||
;; Read string, prompting with PROMPT and inserting the INITIAL
|
||
;; value. Uses HISTORY-VAR. DEFAULT is the default value to accept if the
|
||
;; input is an empty string. Use KEYMAP, if given, or the
|
||
;; minibuffer-local-map.
|
||
;; Default value is displayed until the user types something in the
|
||
;; minibuffer.
|
||
(let ((minibuffer-setup-hook
|
||
'(lambda ()
|
||
(if (stringp initial)
|
||
(progn
|
||
;; don't wait if we have unread events or in kbd macro
|
||
(or unread-command-events
|
||
executing-kbd-macro
|
||
(sit-for 840))
|
||
(erase-buffer)
|
||
(insert initial)))
|
||
(vip-minibuffer-setup-sentinel)))
|
||
(val "")
|
||
(padding "")
|
||
temp-msg)
|
||
|
||
(setq keymap (or keymap minibuffer-local-map)
|
||
initial (or initial "")
|
||
temp-msg (if default
|
||
(format "(default: %s) " default)
|
||
""))
|
||
|
||
(setq vip-incomplete-ex-cmd nil)
|
||
(setq val (read-from-minibuffer prompt
|
||
(concat temp-msg initial val padding)
|
||
keymap nil history-var))
|
||
(setq minibuffer-setup-hook nil
|
||
padding (vip-array-to-string (this-command-keys))
|
||
temp-msg "")
|
||
;; the following tries to be smart about what to put in history
|
||
(if (not (string= val (car (eval history-var))))
|
||
(set history-var (cons val (eval history-var))))
|
||
(if (or (string= (nth 0 (eval history-var)) (nth 1 (eval history-var)))
|
||
(string= (nth 0 (eval history-var)) ""))
|
||
(set history-var (cdr (eval history-var))))
|
||
;; If the user enters nothing but the prev cmd wasn't vip-ex,
|
||
;; vip-command-argument, or `! shell-command', this probably means
|
||
;; that the user typed something then erased. Return "" in this case, not
|
||
;; the default---the default is too confusing in this case.
|
||
(cond ((and (string= val "")
|
||
(not (string= prompt "!")) ; was a `! shell-command'
|
||
(not (memq last-command
|
||
'(vip-ex
|
||
vip-command-argument
|
||
t)
|
||
)))
|
||
"")
|
||
((string= val "") (or default ""))
|
||
(t val))
|
||
))
|
||
|
||
|
||
|
||
;; insertion commands
|
||
|
||
;; Called when state changes from Insert Vi command mode.
|
||
;; Repeats the insertion command if Insert state was entered with prefix
|
||
;; argument > 1.
|
||
(defun vip-repeat-insert-command ()
|
||
(let ((i-com (car vip-d-com))
|
||
(val (nth 1 vip-d-com))
|
||
(char (nth 2 vip-d-com)))
|
||
(if (and val (> val 1)) ; first check that val is non-nil
|
||
(progn
|
||
(setq vip-d-com (list i-com (1- val) ?r nil nil nil))
|
||
(vip-repeat nil)
|
||
(setq vip-d-com (list i-com val char nil nil nil))
|
||
))))
|
||
|
||
(defun vip-insert (arg)
|
||
"Insert before point."
|
||
(interactive "P")
|
||
(vip-set-complex-command-for-undo)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(vip-set-destructive-command (list 'vip-insert val ?r nil nil nil))
|
||
(if com
|
||
(vip-loop val (vip-yank-last-insertion))
|
||
(vip-change-state-to-insert))))
|
||
|
||
(defun vip-append (arg)
|
||
"Append after point."
|
||
(interactive "P")
|
||
(vip-set-complex-command-for-undo)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(vip-set-destructive-command (list 'vip-append val ?r nil nil nil))
|
||
(if (not (eolp)) (forward-char))
|
||
(if (equal com ?r)
|
||
(vip-loop val (vip-yank-last-insertion))
|
||
(vip-change-state-to-insert))))
|
||
|
||
(defun vip-Append (arg)
|
||
"Append at end of line."
|
||
(interactive "P")
|
||
(vip-set-complex-command-for-undo)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(vip-set-destructive-command (list 'vip-Append val ?r nil nil nil))
|
||
(end-of-line)
|
||
(if (equal com ?r)
|
||
(vip-loop val (vip-yank-last-insertion))
|
||
(vip-change-state-to-insert))))
|
||
|
||
(defun vip-Insert (arg)
|
||
"Insert before first non-white."
|
||
(interactive "P")
|
||
(vip-set-complex-command-for-undo)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(vip-set-destructive-command (list 'vip-Insert val ?r nil nil nil))
|
||
(back-to-indentation)
|
||
(if (equal com ?r)
|
||
(vip-loop val (vip-yank-last-insertion))
|
||
(vip-change-state-to-insert))))
|
||
|
||
(defun vip-open-line (arg)
|
||
"Open line below."
|
||
(interactive "P")
|
||
(vip-set-complex-command-for-undo)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(vip-set-destructive-command (list 'vip-open-line val ?r nil nil nil))
|
||
(let ((col (current-indentation)))
|
||
(if (equal com ?r)
|
||
(vip-loop val
|
||
(progn
|
||
(end-of-line)
|
||
(newline 1)
|
||
(if vip-auto-indent
|
||
(progn
|
||
(setq vip-cted t)
|
||
(if vip-electric-mode
|
||
(indent-according-to-mode)
|
||
(indent-to col))
|
||
))
|
||
(vip-yank-last-insertion)))
|
||
(end-of-line)
|
||
(newline 1)
|
||
(if vip-auto-indent
|
||
(progn
|
||
(setq vip-cted t)
|
||
(if vip-electric-mode
|
||
(indent-according-to-mode)
|
||
(indent-to col))
|
||
))
|
||
(vip-change-state-to-insert)
|
||
))))
|
||
|
||
(defun vip-Open-line (arg)
|
||
"Open line above."
|
||
(interactive "P")
|
||
(vip-set-complex-command-for-undo)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(vip-set-destructive-command (list 'vip-Open-line val ?r nil nil nil))
|
||
(let ((col (current-indentation)))
|
||
(if (equal com ?r)
|
||
(vip-loop val
|
||
(progn
|
||
(beginning-of-line)
|
||
(open-line 1)
|
||
(if vip-auto-indent
|
||
(progn
|
||
(setq vip-cted t)
|
||
(if vip-electric-mode
|
||
(indent-according-to-mode)
|
||
(indent-to col))
|
||
))
|
||
(vip-yank-last-insertion)))
|
||
(beginning-of-line)
|
||
(open-line 1)
|
||
(if vip-auto-indent
|
||
(progn
|
||
(setq vip-cted t)
|
||
(if vip-electric-mode
|
||
(indent-according-to-mode)
|
||
(indent-to col))
|
||
))
|
||
(vip-change-state-to-insert)))))
|
||
|
||
(defun vip-open-line-at-point (arg)
|
||
"Open line at point."
|
||
(interactive "P")
|
||
(vip-set-complex-command-for-undo)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(vip-set-destructive-command
|
||
(list 'vip-open-line-at-point val ?r nil nil nil))
|
||
(if (equal com ?r)
|
||
(vip-loop val
|
||
(progn
|
||
(open-line 1)
|
||
(vip-yank-last-insertion)))
|
||
(open-line 1)
|
||
(vip-change-state-to-insert))))
|
||
|
||
(defun vip-substitute (arg)
|
||
"Substitute characters."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(push-mark nil t)
|
||
(forward-char val)
|
||
(if (equal com ?r)
|
||
(vip-change-subr (mark t) (point))
|
||
(vip-change (mark t) (point)))
|
||
(vip-set-destructive-command (list 'vip-substitute val ?r nil nil nil))
|
||
))
|
||
|
||
(defun vip-substitute-line (arg)
|
||
"Substitute lines."
|
||
(interactive "p")
|
||
(vip-set-complex-command-for-undo)
|
||
(vip-line (cons arg ?C)))
|
||
|
||
;; Prepare for replace
|
||
(defun vip-start-replace ()
|
||
(setq vip-began-as-replace t
|
||
vip-sitting-in-replace t
|
||
vip-replace-chars-to-delete 0
|
||
vip-replace-chars-deleted 0)
|
||
(vip-add-hook 'vip-after-change-functions 'vip-replace-mode-spy-after t)
|
||
(vip-add-hook 'vip-before-change-functions 'vip-replace-mode-spy-before t)
|
||
;; this will get added repeatedly, but no harm
|
||
(add-hook 'after-change-functions 'vip-after-change-sentinel t)
|
||
(add-hook 'before-change-functions 'vip-before-change-sentinel t)
|
||
(vip-move-marker-locally 'vip-last-posn-in-replace-region
|
||
(vip-replace-start))
|
||
(vip-add-hook
|
||
'vip-post-command-hooks 'vip-replace-state-post-command-sentinel t)
|
||
(vip-add-hook
|
||
'vip-pre-command-hooks 'vip-replace-state-pre-command-sentinel t)
|
||
)
|
||
|
||
|
||
;; checks how many chars were deleted by the last change
|
||
(defun vip-replace-mode-spy-before (beg end)
|
||
(setq vip-replace-chars-deleted
|
||
(- end beg
|
||
(max 0 (- end (vip-replace-end)))
|
||
(max 0 (- (vip-replace-start) beg))
|
||
)))
|
||
|
||
;; Invoked as an after-change-function to set up parameters of the last change
|
||
(defun vip-replace-mode-spy-after (beg end length)
|
||
(if (memq vip-intermediate-command '(repeating-insertion-from-ring))
|
||
(progn
|
||
(setq vip-replace-chars-to-delete 0)
|
||
(vip-move-marker-locally
|
||
'vip-last-posn-in-replace-region (point)))
|
||
|
||
(let (beg-col end-col real-end chars-to-delete)
|
||
(setq real-end (min end (vip-replace-end)))
|
||
(save-excursion
|
||
(goto-char beg)
|
||
(setq beg-col (current-column))
|
||
(goto-char real-end)
|
||
(setq end-col (current-column)))
|
||
|
||
;; If beg of change is outside the replacement region, then don't
|
||
;; delete anything in the repl region (set chars-to-delete to 0).
|
||
;;
|
||
;; This works fine except that we have to take special care of
|
||
;; dabbrev-expand. The problem stems from new-dabbrev.el, which
|
||
;; sometimes simply shifts the repl region rightwards, without
|
||
;; deleting an equal amount of characters.
|
||
;;
|
||
;; The reason why new-dabbrev.el causes this are this:
|
||
;; if one dinamically completes a partial word that starts before the
|
||
;; replacement region (but ends inside) then new-dabbrev.el first
|
||
;; moves cursor backwards, to the beginning of the word to be
|
||
;; completed (say, pt A). Then it inserts the
|
||
;; completed word and then deletes the old, incomplete part.
|
||
;; Since the complete word is inserted at position before the repl
|
||
;; region, the next If-statement would have set chars-to-delete to 0
|
||
;; unless we check for the current command, which must be
|
||
;; dabbrev-expand.
|
||
;;
|
||
;; In fact, it might be also useful to have overlays for insert
|
||
;; regions as well, since this will let us capture the situation when
|
||
;; dabbrev-expand goes back past the insertion point to find the
|
||
;; beginning of the word to be expanded.
|
||
(if (or (and (<= (vip-replace-start) beg)
|
||
(<= beg (vip-replace-end)))
|
||
(and (= length 0) (eq this-command 'dabbrev-expand)))
|
||
(setq chars-to-delete
|
||
(max (- end-col beg-col) (- real-end beg) 0))
|
||
(setq chars-to-delete 0))
|
||
|
||
;; if beg = last change position, it means that we are within the
|
||
;; same command that does multiple changes. Moreover, it means
|
||
;; that we have two subsequent changes (insert/delete) that
|
||
;; complement each other.
|
||
(if (= beg (marker-position vip-last-posn-in-replace-region))
|
||
(setq vip-replace-chars-to-delete
|
||
(- (+ chars-to-delete vip-replace-chars-to-delete)
|
||
vip-replace-chars-deleted))
|
||
(setq vip-replace-chars-to-delete chars-to-delete))
|
||
|
||
(vip-move-marker-locally
|
||
'vip-last-posn-in-replace-region
|
||
(max (if (> end (vip-replace-end)) (vip-replace-start) end)
|
||
(or (marker-position vip-last-posn-in-replace-region)
|
||
(vip-replace-start))
|
||
))
|
||
|
||
(setq vip-replace-chars-to-delete
|
||
(max 0 (min vip-replace-chars-to-delete
|
||
(- (vip-replace-end)
|
||
vip-last-posn-in-replace-region))))
|
||
)))
|
||
|
||
|
||
;; Delete stuff between posn and the end of vip-replace-overlay-marker, if
|
||
;; posn is within the overlay.
|
||
(defun vip-finish-change (posn)
|
||
(vip-remove-hook 'vip-after-change-functions 'vip-replace-mode-spy-after)
|
||
(vip-remove-hook 'vip-before-change-functions 'vip-replace-mode-spy-before)
|
||
(vip-remove-hook 'vip-post-command-hooks
|
||
'vip-replace-state-post-command-sentinel)
|
||
(vip-remove-hook
|
||
'vip-pre-command-hooks 'vip-replace-state-pre-command-sentinel)
|
||
(vip-restore-cursor-color)
|
||
(setq vip-sitting-in-replace nil) ; just in case we'll need to know it
|
||
(save-excursion
|
||
(if (and
|
||
vip-replace-overlay
|
||
(>= posn (vip-replace-start))
|
||
(< posn (vip-replace-end)))
|
||
(delete-region posn (vip-replace-end)))
|
||
)
|
||
|
||
(if (eq vip-current-state 'replace-state)
|
||
(vip-downgrade-to-insert))
|
||
;; replace mode ended => nullify vip-last-posn-in-replace-region
|
||
(vip-move-marker-locally 'vip-last-posn-in-replace-region nil)
|
||
(vip-hide-replace-overlay)
|
||
(vip-refresh-mode-line)
|
||
(vip-put-string-on-kill-ring vip-last-replace-region)
|
||
)
|
||
|
||
;; Make STRING be the first element of the kill ring.
|
||
(defun vip-put-string-on-kill-ring (string)
|
||
(setq kill-ring (cons string kill-ring))
|
||
(if (> (length kill-ring) kill-ring-max)
|
||
(setcdr (nthcdr (1- kill-ring-max) kill-ring) nil))
|
||
(setq kill-ring-yank-pointer kill-ring))
|
||
|
||
(defun vip-finish-R-mode ()
|
||
(vip-remove-hook 'vip-post-command-hooks 'vip-R-state-post-command-sentinel)
|
||
(vip-remove-hook
|
||
'vip-pre-command-hooks 'vip-replace-state-pre-command-sentinel)
|
||
(vip-downgrade-to-insert))
|
||
|
||
(defun vip-start-R-mode ()
|
||
;; Leave arg as 1, not t: XEmacs insists that it must be a pos number
|
||
(overwrite-mode 1)
|
||
(vip-add-hook
|
||
'vip-post-command-hooks 'vip-R-state-post-command-sentinel t)
|
||
(vip-add-hook
|
||
'vip-pre-command-hooks 'vip-replace-state-pre-command-sentinel t)
|
||
)
|
||
|
||
|
||
|
||
(defun vip-replace-state-exit-cmd ()
|
||
"Binding for keys that cause Replace state to switch to Vi or to Insert.
|
||
These keys are ESC, RET, and LineFeed"
|
||
(interactive)
|
||
(if overwrite-mode ;; If you are in replace mode invoked via 'R'
|
||
(vip-finish-R-mode)
|
||
(vip-finish-change vip-last-posn-in-replace-region))
|
||
(let (com)
|
||
(if (eq this-command 'vip-intercept-ESC-key)
|
||
(setq com 'vip-exit-insert-state)
|
||
(vip-set-unread-command-events last-input-char)
|
||
(setq com (key-binding (read-key-sequence nil))))
|
||
|
||
(condition-case conds
|
||
(command-execute com)
|
||
(error
|
||
(vip-message-conditions conds)))
|
||
)
|
||
(vip-hide-replace-overlay))
|
||
|
||
|
||
;; This is the function bound to 'R'---unlimited replace.
|
||
;; Similar to Emacs's own overwrite-mode.
|
||
(defun vip-overwrite (arg)
|
||
"Begin overwrite mode."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)) (len))
|
||
(vip-set-destructive-command (list 'vip-overwrite val ?r nil nil nil))
|
||
(if com
|
||
(progn
|
||
;; Viper saves inserted text in vip-last-insertion
|
||
(setq len (length vip-last-insertion))
|
||
(delete-char len)
|
||
(vip-loop val (vip-yank-last-insertion)))
|
||
(setq last-command 'vip-overwrite)
|
||
(vip-set-complex-command-for-undo)
|
||
(vip-set-replace-overlay (point) (vip-line-pos 'end))
|
||
(vip-change-state-to-replace)
|
||
)))
|
||
|
||
|
||
;; line commands
|
||
|
||
(defun vip-line (arg)
|
||
(let ((val (car arg))
|
||
(com (cdr arg)))
|
||
(vip-move-marker-locally 'vip-com-point (point))
|
||
(if (not (eobp))
|
||
(vip-next-line-carefully (1- val)))
|
||
;; this ensures that dd, cc, D, yy will do the right thing on the last
|
||
;; line of buffer when this line has no \n.
|
||
(vip-add-newline-at-eob-if-necessary)
|
||
(vip-execute-com 'vip-line val com))
|
||
(if (and (eobp) (not (bobp))) (forward-line -1))
|
||
)
|
||
|
||
(defun vip-yank-line (arg)
|
||
"Yank ARG lines (in Vi's sense)."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg)))
|
||
(vip-line (cons val ?Y))))
|
||
|
||
|
||
;; region commands
|
||
|
||
(defun vip-region (arg)
|
||
"Execute command on a region."
|
||
(interactive "P")
|
||
(let ((val (vip-P-val arg))
|
||
(com (vip-getcom arg)))
|
||
(vip-move-marker-locally 'vip-com-point (point))
|
||
(exchange-point-and-mark)
|
||
(vip-execute-com 'vip-region val com)))
|
||
|
||
(defun vip-Region (arg)
|
||
"Execute command on a Region."
|
||
(interactive "P")
|
||
(let ((val (vip-P-val arg))
|
||
(com (vip-getCom arg)))
|
||
(vip-move-marker-locally 'vip-com-point (point))
|
||
(exchange-point-and-mark)
|
||
(vip-execute-com 'vip-Region val com)))
|
||
|
||
(defun vip-replace-char (arg)
|
||
"Replace the following ARG chars by the character read."
|
||
(interactive "P")
|
||
(if (and (eolp) (bolp)) (error "No character to replace here"))
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(vip-replace-char-subr com val)
|
||
(if (and (eolp) (not (bolp))) (forward-char 1))
|
||
(vip-set-destructive-command
|
||
(list 'vip-replace-char val ?r nil vip-d-char nil))
|
||
))
|
||
|
||
(defun vip-replace-char-subr (com arg)
|
||
(let ((take-care-of-iso-accents
|
||
(and (boundp 'iso-accents-mode) vip-automatic-iso-accents))
|
||
char)
|
||
(setq char (if (equal com ?r)
|
||
vip-d-char
|
||
(read-char)))
|
||
(if (and take-care-of-iso-accents (memq char '(?' ?\" ?^ ?~)))
|
||
;; get European characters
|
||
(progn
|
||
(iso-accents-mode 1)
|
||
(vip-set-unread-command-events char)
|
||
(setq char (aref (read-key-sequence nil) 0))
|
||
(iso-accents-mode -1)))
|
||
(delete-char arg t)
|
||
(setq vip-d-char char)
|
||
(vip-loop (if (> arg 0) arg (- arg))
|
||
(if (eq char ?\C-m) (insert "\n") (insert char)))
|
||
(backward-char arg)))
|
||
|
||
|
||
;; basic cursor movement. j, k, l, h commands.
|
||
|
||
(defun vip-forward-char (arg)
|
||
"Move point right ARG characters (left if ARG negative).
|
||
On reaching end of line, stop and signal error."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(if vip-ex-style-motion
|
||
(progn
|
||
;; the boundary condition check gets weird here because
|
||
;; forward-char may be the parameter of a delete, and 'dl' works
|
||
;; just like 'x' for the last char on a line, so we have to allow
|
||
;; the forward motion before the 'vip-execute-com', but, of
|
||
;; course, 'dl' doesn't work on an empty line, so we have to
|
||
;; catch that condition before 'vip-execute-com'
|
||
(if (and (eolp) (bolp)) (error "") (forward-char val))
|
||
(if com (vip-execute-com 'vip-forward-char val com))
|
||
(if (eolp) (progn (backward-char 1) (error ""))))
|
||
(forward-char val)
|
||
(if com (vip-execute-com 'vip-forward-char val com)))))
|
||
|
||
(defun vip-backward-char (arg)
|
||
"Move point left ARG characters (right if ARG negative).
|
||
On reaching beginning of line, stop and signal error."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(if vip-ex-style-motion
|
||
(progn
|
||
(if (bolp) (error "") (backward-char val))
|
||
(if com (vip-execute-com 'vip-backward-char val com)))
|
||
(backward-char val)
|
||
(if com (vip-execute-com 'vip-backward-char val com)))))
|
||
|
||
;; Like forward-char, but doesn't move at end of buffer.
|
||
(defun vip-forward-char-carefully (&optional arg)
|
||
(setq arg (or arg 1))
|
||
(if (>= (point-max) (+ (point) arg))
|
||
(forward-char arg)
|
||
(goto-char (point-max))))
|
||
|
||
;; Like backward-char, but doesn't move at end of buffer.
|
||
(defun vip-backward-char-carefully (&optional arg)
|
||
(setq arg (or arg 1))
|
||
(if (<= (point-min) (- (point) arg))
|
||
(backward-char arg)
|
||
(goto-char (point-min))))
|
||
|
||
(defun vip-next-line-carefully (arg)
|
||
(condition-case nil
|
||
(next-line arg)
|
||
(error nil)))
|
||
|
||
|
||
|
||
;;; Word command
|
||
|
||
;; Words are formed from alpha's and nonalphas - <sp>,\t\n are separators
|
||
;; for word movement. When executed with a destructive command, \n is
|
||
;; usually left untouched for the last word.
|
||
;; Viper uses syntax table to determine what is a word and what is a
|
||
;; separator. However, \n is always a separator. Also, if vip-syntax-preference
|
||
;; is 'vi, then `_' is part of the word.
|
||
|
||
;; skip only one \n
|
||
(defun vip-skip-separators (forward)
|
||
(if forward
|
||
(progn
|
||
(vip-skip-all-separators-forward 'within-line)
|
||
(if (looking-at "\n")
|
||
(progn
|
||
(forward-char)
|
||
(vip-skip-all-separators-forward 'within-line))))
|
||
(vip-skip-all-separators-backward 'within-line)
|
||
(backward-char)
|
||
(if (looking-at "\n")
|
||
(vip-skip-all-separators-backward 'within-line)
|
||
(forward-char))))
|
||
|
||
(defun vip-forward-word-kernel (val)
|
||
(while (> val 0)
|
||
(cond ((vip-looking-at-alpha)
|
||
(vip-skip-alpha-forward "_")
|
||
(vip-skip-separators t))
|
||
((vip-looking-at-separator)
|
||
(vip-skip-separators t))
|
||
((not (vip-looking-at-alphasep))
|
||
(vip-skip-nonalphasep-forward)
|
||
(vip-skip-separators t)))
|
||
(setq val (1- val))))
|
||
|
||
;; first search backward for pat. Then skip chars backwards using aux-pat
|
||
(defun vip-fwd-skip (pat aux-pat lim)
|
||
(if (and (save-excursion
|
||
(re-search-backward pat lim t))
|
||
(= (point) (match-end 0)))
|
||
(goto-char (match-beginning 0)))
|
||
(skip-chars-backward aux-pat lim)
|
||
(if (= (point) lim)
|
||
(vip-forward-char-carefully))
|
||
)
|
||
|
||
|
||
(defun vip-forward-word (arg)
|
||
"Forward word."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(vip-forward-word-kernel val)
|
||
(if com (progn
|
||
(cond ((memq com (list ?c (- ?c)))
|
||
(vip-fwd-skip "\n[ \t]*" " \t" vip-com-point))
|
||
;; Yank words including the whitespace, but not newline
|
||
((memq com (list ?y (- ?y)))
|
||
(vip-fwd-skip "\n[ \t]*" "" vip-com-point))
|
||
((vip-dotable-command-p com)
|
||
(vip-fwd-skip "\n[ \t]*" "" vip-com-point)))
|
||
(vip-execute-com 'vip-forward-word val com)))))
|
||
|
||
|
||
(defun vip-forward-Word (arg)
|
||
"Forward word delimited by white characters."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(vip-loop val
|
||
(progn
|
||
(vip-skip-nonseparators 'forward)
|
||
(vip-skip-separators t)))
|
||
(if com (progn
|
||
(cond ((memq com (list ?c (- ?c)))
|
||
(vip-fwd-skip "\n[ \t]*" " \t" vip-com-point))
|
||
;; Yank words including the whitespace, but not newline
|
||
((memq com (list ?y (- ?y)))
|
||
(vip-fwd-skip "\n[ \t]*" "" vip-com-point))
|
||
((vip-dotable-command-p com)
|
||
(vip-fwd-skip "\n[ \t]*" "" vip-com-point)))
|
||
(vip-execute-com 'vip-forward-Word val com)))))
|
||
|
||
|
||
;; this is a bit different from Vi, but Vi's end of word
|
||
;; makes no sense whatsoever
|
||
(defun vip-end-of-word-kernel ()
|
||
(if (vip-end-of-word-p) (forward-char))
|
||
(if (vip-looking-at-separator)
|
||
(vip-skip-all-separators-forward))
|
||
|
||
(cond ((vip-looking-at-alpha) (vip-skip-alpha-forward "_"))
|
||
((not (vip-looking-at-alphasep)) (vip-skip-nonalphasep-forward)))
|
||
(vip-backward-char-carefully))
|
||
|
||
(defun vip-end-of-word-p ()
|
||
(or (eobp)
|
||
(save-excursion
|
||
(cond ((vip-looking-at-alpha)
|
||
(forward-char)
|
||
(not (vip-looking-at-alpha)))
|
||
((not (vip-looking-at-alphasep))
|
||
(forward-char)
|
||
(vip-looking-at-alphasep))))))
|
||
|
||
|
||
(defun vip-end-of-word (arg &optional careful)
|
||
"Move point to end of current word."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(vip-loop val (vip-end-of-word-kernel))
|
||
(if com
|
||
(progn
|
||
(forward-char)
|
||
(vip-execute-com 'vip-end-of-word val com)))))
|
||
|
||
(defun vip-end-of-Word (arg)
|
||
"Forward to end of word delimited by white character."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(vip-loop val
|
||
(progn
|
||
(vip-end-of-word-kernel)
|
||
(vip-skip-nonseparators 'forward)
|
||
(backward-char)))
|
||
(if com
|
||
(progn
|
||
(forward-char)
|
||
(vip-execute-com 'vip-end-of-Word val com)))))
|
||
|
||
(defun vip-backward-word-kernel (val)
|
||
(while (> val 0)
|
||
(backward-char)
|
||
(cond ((vip-looking-at-alpha)
|
||
(vip-skip-alpha-backward "_"))
|
||
((vip-looking-at-separator)
|
||
(forward-char)
|
||
(vip-skip-separators nil)
|
||
(backward-char)
|
||
(cond ((vip-looking-at-alpha)
|
||
(vip-skip-alpha-backward "_"))
|
||
((not (vip-looking-at-alphasep))
|
||
(vip-skip-nonalphasep-backward))
|
||
(t (forward-char))))
|
||
((not (vip-looking-at-alphasep))
|
||
(vip-skip-nonalphasep-backward)))
|
||
(setq val (1- val))))
|
||
|
||
(defun vip-backward-word (arg)
|
||
"Backward word."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com
|
||
(let (i)
|
||
(if (setq i (save-excursion (backward-char) (looking-at "\n")))
|
||
(backward-char))
|
||
(vip-move-marker-locally 'vip-com-point (point))
|
||
(if i (forward-char))))
|
||
(vip-backward-word-kernel val)
|
||
(if com (vip-execute-com 'vip-backward-word val com))))
|
||
|
||
(defun vip-backward-Word (arg)
|
||
"Backward word delimited by white character."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com
|
||
(let (i)
|
||
(if (setq i (save-excursion (backward-char) (looking-at "\n")))
|
||
(backward-char))
|
||
(vip-move-marker-locally 'vip-com-point (point))
|
||
(if i (forward-char))))
|
||
(vip-loop val
|
||
(progn
|
||
(vip-skip-separators nil)
|
||
(vip-skip-nonseparators 'backward)))
|
||
(if com (vip-execute-com 'vip-backward-Word val com))))
|
||
|
||
|
||
|
||
;; line commands
|
||
|
||
(defun vip-beginning-of-line (arg)
|
||
"Go to beginning of line."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(beginning-of-line val)
|
||
(if com (vip-execute-com 'vip-beginning-of-line val com))))
|
||
|
||
(defun vip-bol-and-skip-white (arg)
|
||
"Beginning of line at first non-white character."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(forward-to-indentation (1- val))
|
||
(if com (vip-execute-com 'vip-bol-and-skip-white val com))))
|
||
|
||
(defun vip-goto-eol (arg)
|
||
"Go to end of line."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(end-of-line val)
|
||
(if com (vip-execute-com 'vip-goto-eol val com))
|
||
(if vip-ex-style-motion
|
||
(if (and (eolp) (not (bolp))
|
||
;; a fix for vip-change-to-eol
|
||
(not (equal vip-current-state 'insert-state)))
|
||
(backward-char 1)
|
||
))))
|
||
|
||
|
||
(defun vip-goto-col (arg)
|
||
"Go to ARG's column."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(save-excursion
|
||
(end-of-line)
|
||
(if (> val (1+ (current-column))) (error "")))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(beginning-of-line)
|
||
(forward-char (1- val))
|
||
(if com (vip-execute-com 'vip-goto-col val com))))
|
||
|
||
|
||
(defun vip-next-line (arg)
|
||
"Go to next line."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getCom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(next-line val)
|
||
(if vip-ex-style-motion
|
||
(if (and (eolp) (not (bolp))) (backward-char 1)))
|
||
(setq this-command 'next-line)
|
||
(if com (vip-execute-com 'vip-next-line val com))))
|
||
|
||
(defun vip-next-line-at-bol (arg)
|
||
"Next line at beginning of line."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(save-excursion
|
||
(end-of-line)
|
||
(if (eobp) (error "Last line in buffer")))
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getCom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(forward-line val)
|
||
(back-to-indentation)
|
||
(if com (vip-execute-com 'vip-next-line-at-bol val com))))
|
||
|
||
(defun vip-previous-line (arg)
|
||
"Go to previous line."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getCom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(previous-line val)
|
||
(if vip-ex-style-motion
|
||
(if (and (eolp) (not (bolp))) (backward-char 1)))
|
||
(setq this-command 'previous-line)
|
||
(if com (vip-execute-com 'vip-previous-line val com))))
|
||
|
||
|
||
(defun vip-previous-line-at-bol (arg)
|
||
"Previous line at beginning of line."
|
||
(interactive "P")
|
||
(vip-leave-region-active)
|
||
(save-excursion
|
||
(beginning-of-line)
|
||
(if (bobp) (error "First line in buffer")))
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getCom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(forward-line (- val))
|
||
(back-to-indentation)
|
||
(if com (vip-execute-com 'vip-previous-line val com))))
|
||
|
||
(defun vip-change-to-eol (arg)
|
||
"Change to end of line."
|
||
(interactive "P")
|
||
(vip-goto-eol (cons arg ?c)))
|
||
|
||
(defun vip-kill-line (arg)
|
||
"Delete line."
|
||
(interactive "P")
|
||
(vip-goto-eol (cons arg ?d)))
|
||
|
||
(defun vip-erase-line (arg)
|
||
"Erase line."
|
||
(interactive "P")
|
||
(vip-beginning-of-line (cons arg ?d)))
|
||
|
||
|
||
;;; Moving around
|
||
|
||
(defun vip-goto-line (arg)
|
||
"Go to ARG's line. Without ARG go to end of buffer."
|
||
(interactive "P")
|
||
(let ((val (vip-P-val arg))
|
||
(com (vip-getCom arg)))
|
||
(vip-move-marker-locally 'vip-com-point (point))
|
||
(vip-deactivate-mark)
|
||
(push-mark nil t)
|
||
(if (null val)
|
||
(goto-char (point-max))
|
||
(goto-char (point-min))
|
||
(forward-line (1- val)))
|
||
|
||
;; positioning is done twice: before and after command execution
|
||
(if (and (eobp) (bolp) (not (bobp))) (forward-line -1))
|
||
(back-to-indentation)
|
||
|
||
(if com (vip-execute-com 'vip-goto-line val com))
|
||
|
||
(if (and (eobp) (bolp) (not (bobp))) (forward-line -1))
|
||
(back-to-indentation)
|
||
))
|
||
|
||
;; Find ARG's occurrence of CHAR on the current line.
|
||
;; If FORWARD then search is forward, otherwise backward. OFFSET is used to
|
||
;; adjust point after search.
|
||
(defun vip-find-char (arg char forward offset)
|
||
(or (char-or-string-p char) (error ""))
|
||
(let ((arg (if forward arg (- arg)))
|
||
(cmd (if (eq vip-intermediate-command 'vip-repeat)
|
||
(nth 5 vip-d-com)
|
||
(vip-array-to-string (this-command-keys))))
|
||
point)
|
||
(save-excursion
|
||
(save-restriction
|
||
(if (> arg 0)
|
||
(narrow-to-region
|
||
;; forward search begins here
|
||
(if (eolp) (error "Command `%s': At end of line" cmd) (point))
|
||
;; forward search ends here
|
||
(progn (end-of-line) (point)))
|
||
(narrow-to-region
|
||
;; backward search begins from here
|
||
(if (bolp)
|
||
(error "Command `%s': At beginning of line" cmd) (point))
|
||
;; backward search ends here
|
||
(progn (beginning-of-line) (point))))
|
||
;; if arg > 0, point is forwarded before search.
|
||
(if (> arg 0) (goto-char (1+ (point-min)))
|
||
(goto-char (point-max)))
|
||
(if (let ((case-fold-search nil))
|
||
(search-forward (char-to-string char) nil 0 arg))
|
||
(setq point (point))
|
||
(error "Command `%s': `%c' not found" cmd char))))
|
||
(goto-char (+ point (if (> arg 0) (if offset -2 -1) (if offset 1 0))))))
|
||
|
||
(defun vip-find-char-forward (arg)
|
||
"Find char on the line.
|
||
If called interactively read the char to find from the terminal, and if
|
||
called from vip-repeat, the char last used is used. This behaviour is
|
||
controlled by the sign of prefix numeric value."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if (> val 0)
|
||
;; this means that the function was called interactively
|
||
(setq vip-f-char (read-char)
|
||
vip-f-forward t
|
||
vip-f-offset nil)
|
||
;; vip-repeat --- set vip-F-char from command-keys
|
||
(setq vip-F-char (if (stringp (nth 5 vip-d-com))
|
||
(vip-seq-last-elt (nth 5 vip-d-com))
|
||
vip-F-char)
|
||
vip-f-char vip-F-char)
|
||
(setq val (- val)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(vip-find-char val (if (> (vip-p-val arg) 0) vip-f-char vip-F-char) t nil)
|
||
(setq val (- val))
|
||
(if com
|
||
(progn
|
||
(setq vip-F-char vip-f-char) ; set new vip-F-char
|
||
(forward-char)
|
||
(vip-execute-com 'vip-find-char-forward val com)))))
|
||
|
||
(defun vip-goto-char-forward (arg)
|
||
"Go up to char ARG forward on line."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if (> val 0)
|
||
;; this means that the function was called interactively
|
||
(setq vip-f-char (read-char)
|
||
vip-f-forward t
|
||
vip-f-offset t)
|
||
;; vip-repeat --- set vip-F-char from command-keys
|
||
(setq vip-F-char (if (stringp (nth 5 vip-d-com))
|
||
(vip-seq-last-elt (nth 5 vip-d-com))
|
||
vip-F-char)
|
||
vip-f-char vip-F-char)
|
||
(setq val (- val)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(vip-find-char val (if (> (vip-p-val arg) 0) vip-f-char vip-F-char) t t)
|
||
(setq val (- val))
|
||
(if com
|
||
(progn
|
||
(setq vip-F-char vip-f-char) ; set new vip-F-char
|
||
(forward-char)
|
||
(vip-execute-com 'vip-goto-char-forward val com)))))
|
||
|
||
(defun vip-find-char-backward (arg)
|
||
"Find char ARG on line backward."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if (> val 0)
|
||
;; this means that the function was called interactively
|
||
(setq vip-f-char (read-char)
|
||
vip-f-forward nil
|
||
vip-f-offset nil)
|
||
;; vip-repeat --- set vip-F-char from command-keys
|
||
(setq vip-F-char (if (stringp (nth 5 vip-d-com))
|
||
(vip-seq-last-elt (nth 5 vip-d-com))
|
||
vip-F-char)
|
||
vip-f-char vip-F-char)
|
||
(setq val (- val)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(vip-find-char
|
||
val (if (> (vip-p-val arg) 0) vip-f-char vip-F-char) nil nil)
|
||
(setq val (- val))
|
||
(if com
|
||
(progn
|
||
(setq vip-F-char vip-f-char) ; set new vip-F-char
|
||
(vip-execute-com 'vip-find-char-backward val com)))))
|
||
|
||
(defun vip-goto-char-backward (arg)
|
||
"Go up to char ARG backward on line."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if (> val 0)
|
||
;; this means that the function was called interactively
|
||
(setq vip-f-char (read-char)
|
||
vip-f-forward nil
|
||
vip-f-offset t)
|
||
;; vip-repeat --- set vip-F-char from command-keys
|
||
(setq vip-F-char (if (stringp (nth 5 vip-d-com))
|
||
(vip-seq-last-elt (nth 5 vip-d-com))
|
||
vip-F-char)
|
||
vip-f-char vip-F-char)
|
||
(setq val (- val)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(vip-find-char val (if (> (vip-p-val arg) 0) vip-f-char vip-F-char) nil t)
|
||
(setq val (- val))
|
||
(if com
|
||
(progn
|
||
(setq vip-F-char vip-f-char) ; set new vip-F-char
|
||
(vip-execute-com 'vip-goto-char-backward val com)))))
|
||
|
||
(defun vip-repeat-find (arg)
|
||
"Repeat previous find command."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(vip-deactivate-mark)
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(vip-find-char val vip-f-char vip-f-forward vip-f-offset)
|
||
(if com
|
||
(progn
|
||
(if vip-f-forward (forward-char))
|
||
(vip-execute-com 'vip-repeat-find val com)))))
|
||
|
||
(defun vip-repeat-find-opposite (arg)
|
||
"Repeat previous find command in the opposite direction."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(vip-deactivate-mark)
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(vip-find-char val vip-f-char (not vip-f-forward) vip-f-offset)
|
||
(if com
|
||
(progn
|
||
(if vip-f-forward (forward-char))
|
||
(vip-execute-com 'vip-repeat-find-opposite val com)))))
|
||
|
||
|
||
;; window scrolling etc.
|
||
|
||
(defun vip-other-window (arg)
|
||
"Switch to other window."
|
||
(interactive "p")
|
||
(other-window arg)
|
||
(or (not (eq vip-current-state 'emacs-state))
|
||
(string= (buffer-name (current-buffer)) " *Minibuf-1*")
|
||
(vip-change-state-to-vi)))
|
||
|
||
(defun vip-window-top (arg)
|
||
"Go to home window line."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getCom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(push-mark nil t)
|
||
(move-to-window-line (1- val))
|
||
|
||
;; positioning is done twice: before and after command execution
|
||
(if (and (eobp) (bolp) (not (bobp))) (forward-line -1))
|
||
(back-to-indentation)
|
||
|
||
(if com (vip-execute-com 'vip-window-top val com))
|
||
|
||
(if (and (eobp) (bolp) (not (bobp))) (forward-line -1))
|
||
(back-to-indentation)
|
||
))
|
||
|
||
(defun vip-window-middle (arg)
|
||
"Go to middle window line."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getCom arg))
|
||
lines)
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(push-mark nil t)
|
||
(if (not (pos-visible-in-window-p (point-max)))
|
||
(move-to-window-line (+ (/ (1- (window-height)) 2) (1- val)))
|
||
(setq lines (count-lines (window-start) (point-max)))
|
||
(move-to-window-line (+ (/ lines 2) (1- val))))
|
||
|
||
;; positioning is done twice: before and after command execution
|
||
(if (and (eobp) (bolp) (not (bobp))) (forward-line -1))
|
||
(back-to-indentation)
|
||
|
||
(if com (vip-execute-com 'vip-window-middle val com))
|
||
|
||
(if (and (eobp) (bolp) (not (bobp))) (forward-line -1))
|
||
(back-to-indentation)
|
||
))
|
||
|
||
(defun vip-window-bottom (arg)
|
||
"Go to last window line."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getCom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(push-mark nil t)
|
||
(move-to-window-line (- val))
|
||
|
||
;; positioning is done twice: before and after command execution
|
||
(if (and (eobp) (bolp) (not (bobp))) (forward-line -1))
|
||
(back-to-indentation)
|
||
|
||
(if com (vip-execute-com 'vip-window-bottom val com))
|
||
|
||
(if (and (eobp) (bolp) (not (bobp))) (forward-line -1))
|
||
(back-to-indentation)
|
||
))
|
||
|
||
(defun vip-line-to-top (arg)
|
||
"Put current line on the home line."
|
||
(interactive "p")
|
||
(recenter (1- arg)))
|
||
|
||
(defun vip-line-to-middle (arg)
|
||
"Put current line on the middle line."
|
||
(interactive "p")
|
||
(recenter (+ (1- arg) (/ (1- (window-height)) 2))))
|
||
|
||
(defun vip-line-to-bottom (arg)
|
||
"Put current line on the last line."
|
||
(interactive "p")
|
||
(recenter (- (window-height) (1+ arg))))
|
||
|
||
|
||
;; paren match
|
||
;; must correct this to only match ( to ) etc. On the other hand
|
||
;; it is good that paren match gets confused, because that way you
|
||
;; catch _all_ imbalances.
|
||
|
||
(defun vip-paren-match (arg)
|
||
"Go to the matching parenthesis."
|
||
(interactive "P")
|
||
(let ((com (vip-getcom arg)))
|
||
(if (numberp arg)
|
||
(if (or (> arg 99) (< arg 1))
|
||
(error "Prefix must be between 1 and 99")
|
||
(goto-char
|
||
(if (> (point-max) 80000)
|
||
(* (/ (point-max) 100) arg)
|
||
(/ (* (point-max) arg) 100)))
|
||
(back-to-indentation))
|
||
(let (lim)
|
||
(if (and (eolp) (not (bolp))) (forward-char -1))
|
||
(save-excursion
|
||
(end-of-line)
|
||
(setq lim (point)))
|
||
(if (re-search-forward "[][(){}]" lim t)
|
||
(backward-char)
|
||
(error "No matching character on line")))
|
||
(cond ((looking-at "[\(\[{]")
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(forward-sexp 1)
|
||
(if com
|
||
(vip-execute-com 'vip-paren-match nil com)
|
||
(backward-char)))
|
||
((looking-at "[])}]")
|
||
(forward-char)
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(backward-sexp 1)
|
||
(if com (vip-execute-com 'vip-paren-match nil com)))
|
||
(t (error ""))))))
|
||
|
||
|
||
;; sentence ,paragraph and heading
|
||
|
||
(defun vip-forward-sentence (arg)
|
||
"Forward sentence."
|
||
(interactive "P")
|
||
(push-mark nil t)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(forward-sentence val)
|
||
(if com (vip-execute-com 'vip-forward-sentence nil com))))
|
||
|
||
(defun vip-backward-sentence (arg)
|
||
"Backward sentence."
|
||
(interactive "P")
|
||
(push-mark nil t)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(backward-sentence val)
|
||
(if com (vip-execute-com 'vip-backward-sentence nil com))))
|
||
|
||
(defun vip-forward-paragraph (arg)
|
||
"Forward paragraph."
|
||
(interactive "P")
|
||
(push-mark nil t)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getCom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(forward-paragraph val)
|
||
(if com
|
||
(progn
|
||
(backward-char 1)
|
||
(vip-execute-com 'vip-forward-paragraph nil com)))))
|
||
|
||
(defun vip-backward-paragraph (arg)
|
||
"Backward paragraph."
|
||
(interactive "P")
|
||
(push-mark nil t)
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getCom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(backward-paragraph val)
|
||
(if com
|
||
(progn
|
||
(forward-char 1)
|
||
(vip-execute-com 'vip-backward-paragraph nil com)
|
||
(backward-char 1)))))
|
||
|
||
;; should be mode-specific etc.
|
||
|
||
(defun vip-prev-heading (arg)
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getCom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(re-search-backward vip-heading-start nil t val)
|
||
(goto-char (match-beginning 0))
|
||
(if com (vip-execute-com 'vip-prev-heading nil com))))
|
||
|
||
(defun vip-heading-end (arg)
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getCom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(re-search-forward vip-heading-end nil t val)
|
||
(goto-char (match-beginning 0))
|
||
(if com (vip-execute-com 'vip-heading-end nil com))))
|
||
|
||
(defun vip-next-heading (arg)
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getCom arg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(end-of-line)
|
||
(re-search-forward vip-heading-start nil t val)
|
||
(goto-char (match-beginning 0))
|
||
(if com (vip-execute-com 'vip-next-heading nil com))))
|
||
|
||
|
||
;; scrolling
|
||
|
||
(setq scroll-step 1)
|
||
|
||
(defun vip-scroll (arg)
|
||
"Scroll to next screen."
|
||
(interactive "p")
|
||
(if (> arg 0)
|
||
(while (> arg 0)
|
||
(scroll-up)
|
||
(setq arg (1- arg)))
|
||
(while (> 0 arg)
|
||
(scroll-down)
|
||
(setq arg (1+ arg)))))
|
||
|
||
(defun vip-scroll-back (arg)
|
||
"Scroll to previous screen."
|
||
(interactive "p")
|
||
(vip-scroll (- arg)))
|
||
|
||
(defun vip-scroll-down (arg)
|
||
"Pull down half screen."
|
||
(interactive "P")
|
||
(condition-case nil
|
||
(if (null arg)
|
||
(scroll-down (/ (window-height) 2))
|
||
(scroll-down arg))
|
||
(error (beep 1)
|
||
(message "Beginning of buffer")
|
||
(goto-char (point-min)))))
|
||
|
||
(defun vip-scroll-down-one (arg)
|
||
"Scroll up one line."
|
||
(interactive "p")
|
||
(scroll-down arg))
|
||
|
||
(defun vip-scroll-up (arg)
|
||
"Pull up half screen."
|
||
(interactive "P")
|
||
(condition-case nil
|
||
(if (null arg)
|
||
(scroll-up (/ (window-height) 2))
|
||
(scroll-up arg))
|
||
(error (beep 1)
|
||
(message "End of buffer")
|
||
(goto-char (point-max)))))
|
||
|
||
(defun vip-scroll-up-one (arg)
|
||
"Scroll down one line."
|
||
(interactive "p")
|
||
(scroll-up arg))
|
||
|
||
|
||
;; searching
|
||
|
||
(defun vip-if-string (prompt)
|
||
(let ((s (vip-read-string-with-history
|
||
prompt
|
||
nil ; no initial
|
||
'vip-search-history
|
||
(car vip-search-history))))
|
||
(if (not (string= s ""))
|
||
(setq vip-s-string s))))
|
||
|
||
|
||
(defun vip-toggle-search-style (arg)
|
||
"Toggle the value of vip-case-fold-search/vip-re-search.
|
||
Without prefix argument, will ask which search style to toggle. With prefix
|
||
arg 1,toggles vip-case-fold-search; with arg 2 toggles vip-re-search.
|
||
|
||
Although this function is bound to \\[vip-toggle-search-style], the most
|
||
convenient way to use it is to bind `//' to the macro
|
||
`1 M-x vip-toggle-search-style' and `///' to
|
||
`2 M-x vip-toggle-search-style'. In this way, hitting `//' quickly will
|
||
toggle case-fold-search and hitting `/' three times witth toggle regexp
|
||
search. Macros are more convenient in this case because they don't affect
|
||
the Emacs binding of `/'."
|
||
(interactive "P")
|
||
(let (msg)
|
||
(cond ((or (eq arg 1)
|
||
(and (null arg)
|
||
(y-or-n-p (format "Search style: '%s'. Want '%s'? "
|
||
(if vip-case-fold-search
|
||
"case-insensitive" "case-sensitive")
|
||
(if vip-case-fold-search
|
||
"case-sensitive"
|
||
"case-insensitive")))))
|
||
(setq vip-case-fold-search (null vip-case-fold-search))
|
||
(if vip-case-fold-search
|
||
(setq msg "Search becomes case-insensitive")
|
||
(setq msg "Search becomes case-sensitive")))
|
||
((or (eq arg 2)
|
||
(and (null arg)
|
||
(y-or-n-p (format "Search style: '%s'. Want '%s'? "
|
||
(if vip-re-search
|
||
"regexp-search" "vanilla-search")
|
||
(if vip-re-search
|
||
"vanilla-search"
|
||
"regexp-search")))))
|
||
(setq vip-re-search (null vip-re-search))
|
||
(if vip-re-search
|
||
(setq msg "Search becomes regexp-style")
|
||
(setq msg "Search becomes vanilla-style")))
|
||
(t
|
||
(setq msg "Search style remains unchanged")))
|
||
(prin1 msg t)))
|
||
|
||
|
||
(defun vip-search-forward (arg)
|
||
"Search a string forward.
|
||
ARG is used to find the ARG's occurrence of the string.
|
||
Null string will repeat previous search."
|
||
(interactive "P")
|
||
(let ((val (vip-P-val arg))
|
||
(com (vip-getcom arg))
|
||
(old-str vip-s-string))
|
||
(setq vip-s-forward t)
|
||
(vip-if-string "/")
|
||
;; this is not used at present, but may be used later
|
||
(if (or (not (equal old-str vip-s-string))
|
||
(not (markerp vip-local-search-start-marker))
|
||
(not (marker-buffer vip-local-search-start-marker)))
|
||
(setq vip-local-search-start-marker (point-marker)))
|
||
(vip-search vip-s-string t val)
|
||
(if com
|
||
(progn
|
||
(vip-move-marker-locally 'vip-com-point (mark t))
|
||
(vip-execute-com 'vip-search-next val com)))))
|
||
|
||
(defun vip-search-backward (arg)
|
||
"Search a string backward.
|
||
ARG is used to find the ARG's occurrence of the string.
|
||
Null string will repeat previous search."
|
||
(interactive "P")
|
||
(let ((val (vip-P-val arg))
|
||
(com (vip-getcom arg))
|
||
(old-str vip-s-string))
|
||
(setq vip-s-forward nil)
|
||
(vip-if-string "?")
|
||
;; this is not used at present, but may be used later
|
||
(if (or (not (equal old-str vip-s-string))
|
||
(not (markerp vip-local-search-start-marker))
|
||
(not (marker-buffer vip-local-search-start-marker)))
|
||
(setq vip-local-search-start-marker (point-marker)))
|
||
(vip-search vip-s-string nil val)
|
||
(if com
|
||
(progn
|
||
(vip-move-marker-locally 'vip-com-point (mark t))
|
||
(vip-execute-com 'vip-search-next val com)))))
|
||
|
||
|
||
;; Search for COUNT's occurrence of STRING.
|
||
;; Search is forward if FORWARD is non-nil, otherwise backward.
|
||
;; INIT-POINT is the position where search is to start.
|
||
;; Arguments:
|
||
;; (STRING FORW COUNT &optional NO-OFFSET INIT-POINT LIMIT FAIL-IF-NOT-FOUND)
|
||
(defun vip-search (string forward arg
|
||
&optional no-offset init-point fail-if-not-found)
|
||
(if (not (equal string ""))
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg))
|
||
(offset (not no-offset))
|
||
(case-fold-search vip-case-fold-search)
|
||
(start-point (or init-point (point))))
|
||
(vip-deactivate-mark)
|
||
(if forward
|
||
(condition-case nil
|
||
(progn
|
||
(if offset (vip-forward-char-carefully))
|
||
(if vip-re-search
|
||
(progn
|
||
(re-search-forward string nil nil val)
|
||
(re-search-backward string))
|
||
(search-forward string nil nil val)
|
||
(search-backward string))
|
||
;; don't wait and don't flash in macros
|
||
(or executing-kbd-macro
|
||
(vip-flash-search-pattern))
|
||
(if (not (equal start-point (point)))
|
||
(push-mark start-point t)))
|
||
(search-failed
|
||
(if (and (not fail-if-not-found) vip-search-wrap-around-t)
|
||
(progn
|
||
(message "Search wrapped around end of buffer")
|
||
(goto-char (point-min))
|
||
(vip-search string forward (cons 1 com) t start-point 'fail)
|
||
;; don't wait in macros
|
||
(or executing-kbd-macro (sit-for 2))
|
||
;; delete the wrap-around message
|
||
(message "")
|
||
)
|
||
(goto-char start-point)
|
||
(error "`%s': %s not found"
|
||
string
|
||
(if vip-re-search "Pattern" "String"))
|
||
)))
|
||
;; backward
|
||
(condition-case nil
|
||
(progn
|
||
(if vip-re-search
|
||
(re-search-backward string nil nil val)
|
||
(search-backward string nil nil val))
|
||
;; don't wait and don't flash in macros
|
||
(or executing-kbd-macro
|
||
(vip-flash-search-pattern))
|
||
(if (not (equal start-point (point)))
|
||
(push-mark start-point t)))
|
||
(search-failed
|
||
(if (and (not fail-if-not-found) vip-search-wrap-around-t)
|
||
(progn
|
||
(message "Search wrapped around beginning of buffer")
|
||
(goto-char (point-max))
|
||
(vip-search string forward (cons 1 com) t start-point 'fail)
|
||
;; don't wait in macros
|
||
(or executing-kbd-macro (sit-for 2))
|
||
;; delete the wrap-around message
|
||
(message "")
|
||
)
|
||
(goto-char start-point)
|
||
(error "`%s': %s not found"
|
||
string
|
||
(if vip-re-search "Pattern" "String"))
|
||
)))))))
|
||
|
||
(defun vip-search-next (arg)
|
||
"Repeat previous search."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if (null vip-s-string) (error vip-NoPrevSearch))
|
||
(vip-search vip-s-string vip-s-forward arg)
|
||
(if com
|
||
(progn
|
||
(vip-move-marker-locally 'vip-com-point (mark t))
|
||
(vip-execute-com 'vip-search-next val com)))))
|
||
|
||
(defun vip-search-Next (arg)
|
||
"Repeat previous search in the reverse direction."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(com (vip-getcom arg)))
|
||
(if (null vip-s-string) (error vip-NoPrevSearch))
|
||
(vip-search vip-s-string (not vip-s-forward) arg)
|
||
(if com
|
||
(progn
|
||
(vip-move-marker-locally 'vip-com-point (mark t))
|
||
(vip-execute-com 'vip-search-Next val com)))))
|
||
|
||
|
||
;; Search contents of buffer defined by one of Viper's motion commands.
|
||
;; Repeatable via `n' and `N'.
|
||
(defun vip-buffer-search-enable (&optional c)
|
||
(cond (c (setq vip-buffer-search-char c))
|
||
((null vip-buffer-search-char)
|
||
(setq vip-buffer-search-char ?g)))
|
||
(define-key vip-vi-basic-map
|
||
(char-to-string vip-buffer-search-char) 'vip-command-argument)
|
||
(aset vip-exec-array vip-buffer-search-char 'vip-exec-buffer-search)
|
||
(setq vip-prefix-commands (cons vip-buffer-search-char vip-prefix-commands)))
|
||
|
||
;; This is a Viper wraper for isearch-forward.
|
||
(defun vip-isearch-forward (arg)
|
||
"Do incremental search forward."
|
||
(interactive "P")
|
||
;; emacs bug workaround
|
||
(if (listp arg) (setq arg (car arg)))
|
||
(vip-exec-form-in-emacs (list 'isearch-forward arg)))
|
||
|
||
;; This is a Viper wraper for isearch-backward."
|
||
(defun vip-isearch-backward (arg)
|
||
"Do incremental search backward."
|
||
(interactive "P")
|
||
;; emacs bug workaround
|
||
(if (listp arg) (setq arg (car arg)))
|
||
(vip-exec-form-in-emacs (list 'isearch-backward arg)))
|
||
|
||
|
||
;; visiting and killing files, buffers
|
||
|
||
(defun vip-switch-to-buffer ()
|
||
"Switch to buffer in the current window."
|
||
(interactive)
|
||
(let (buffer)
|
||
(setq buffer
|
||
(read-buffer
|
||
(format "Switch to buffer in this window \(%s\): "
|
||
(buffer-name (other-buffer (current-buffer))))))
|
||
(switch-to-buffer buffer)
|
||
))
|
||
|
||
(defun vip-switch-to-buffer-other-window ()
|
||
"Switch to buffer in another window."
|
||
(interactive)
|
||
(let (buffer)
|
||
(setq buffer
|
||
(read-buffer
|
||
(format "Switch to buffer in another window \(%s\): "
|
||
(buffer-name (other-buffer (current-buffer))))))
|
||
(switch-to-buffer-other-window buffer)
|
||
))
|
||
|
||
(defun vip-kill-buffer ()
|
||
"Kill a buffer."
|
||
(interactive)
|
||
(let (buffer buffer-name)
|
||
(setq buffer-name
|
||
(read-buffer
|
||
(format "Kill buffer \(%s\): "
|
||
(buffer-name (current-buffer)))))
|
||
(setq buffer
|
||
(if (null buffer-name)
|
||
(current-buffer)
|
||
(get-buffer buffer-name)))
|
||
(if (null buffer) (error "`%s': No such buffer" buffer-name))
|
||
(if (or (not (buffer-modified-p buffer))
|
||
(y-or-n-p
|
||
(format
|
||
"Buffer `%s' is modified, are you sure you want to kill it? "
|
||
buffer-name)))
|
||
(kill-buffer buffer)
|
||
(error "Buffer not killed"))))
|
||
|
||
|
||
(defvar vip-smart-suffix-list '("" "tex" "c" "cc" "el" "p")
|
||
"*List of suffixes that Viper automatically tries to append to filenames ending with a `.'.
|
||
This is useful when you the current directory contains files with the same
|
||
prefix and many different suffixes. Usually, only one of the suffixes
|
||
represents an editable file. However, file completion will stop at the `.'
|
||
The smart suffix feature lets you hit RET in such a case, and Viper will
|
||
select the appropriate suffix.
|
||
|
||
Suffixes are tried in the order given and the first suffix for which a
|
||
corresponding file exists is selected. If no file exists for any of the
|
||
suffixes, the user is asked to confirm.
|
||
|
||
To turn this feature off, set this variable to nil.")
|
||
|
||
;; Try to add suffix to files ending with a `.'
|
||
;; Useful when the user hits RET on a non-completed file name.
|
||
(defun vip-file-add-suffix ()
|
||
(let ((count 0)
|
||
(len (length vip-smart-suffix-list))
|
||
(file (buffer-string))
|
||
found key cmd suff)
|
||
(goto-char (point-max))
|
||
(if (and vip-smart-suffix-list (string-match "\\.$" file))
|
||
(progn
|
||
(while (and (not found) (< count len))
|
||
(setq suff (nth count vip-smart-suffix-list)
|
||
count (1+ count))
|
||
(if (file-exists-p (format "%s%s" file suff))
|
||
(progn
|
||
(setq found t)
|
||
(insert suff))))
|
||
|
||
(if found
|
||
()
|
||
(vip-tmp-insert-at-eob " [Please complete file name]")
|
||
(unwind-protect
|
||
(while (not (memq cmd '(exit-minibuffer vip-exit-minibuffer)))
|
||
(setq cmd
|
||
(key-binding (setq key (read-key-sequence nil))))
|
||
(cond ((eq cmd 'self-insert-command)
|
||
(if vip-xemacs-p
|
||
(insert (events-to-keys key))
|
||
(insert key)))
|
||
((memq cmd '(exit-minibuffer vip-exit-minibuffer))
|
||
nil)
|
||
(t (command-execute cmd)))
|
||
)))
|
||
))
|
||
))
|
||
|
||
|
||
;; Advice for use in find-file and read-file-name commands.
|
||
(defadvice exit-minibuffer (before vip-exit-minibuffer-advice activate)
|
||
"Run `vip-minibuffer-exit-hook' just before exiting the minibuffer."
|
||
(run-hooks 'vip-minibuffer-exit-hook))
|
||
|
||
(defadvice find-file (before vip-add-suffix-advice activate)
|
||
"Use `read-file-name' for reading arguments."
|
||
(interactive (list (read-file-name "Find file: "
|
||
nil default-directory))))
|
||
|
||
(defadvice find-file-other-window (before vip-add-suffix-advice activate)
|
||
"Use `read-file-name' for reading arguments."
|
||
(interactive (list (read-file-name "Find file in other window: "
|
||
nil default-directory))))
|
||
|
||
(defadvice find-file-other-frame (before vip-add-suffix-advice activate)
|
||
"Use `read-file-name' for reading arguments."
|
||
(interactive (list (read-file-name "Find file in other frame: "
|
||
nil default-directory))))
|
||
|
||
(defadvice read-file-name (around vip-suffix-advice activate)
|
||
"Tell `exit-minibuffer' to run `vip-file-add-suffix' as a hook."
|
||
(let ((vip-minibuffer-exit-hook 'vip-file-add-suffix))
|
||
ad-do-it))
|
||
|
||
|
||
|
||
;; yank and pop
|
||
|
||
(defsubst vip-yank (text)
|
||
"Yank TEXT silently. This works correctly with Emacs's yank-pop command."
|
||
(insert text)
|
||
(setq this-command 'yank))
|
||
|
||
(defun vip-put-back (arg)
|
||
"Put back after point/below line."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(text (if vip-use-register
|
||
(cond ((vip-valid-register vip-use-register '(digit))
|
||
(current-kill (- vip-use-register ?1) 'do-not-rotate))
|
||
((vip-valid-register vip-use-register)
|
||
(get-register (downcase vip-use-register)))
|
||
(t (error vip-InvalidRegister vip-use-register)))
|
||
(current-kill 0))))
|
||
(if (null text)
|
||
(if vip-use-register
|
||
(let ((reg vip-use-register))
|
||
(setq vip-use-register nil)
|
||
(error vip-EmptyRegister reg))
|
||
(error "")))
|
||
(setq vip-use-register nil)
|
||
(if (vip-end-with-a-newline-p text)
|
||
(progn
|
||
(if (eobp)
|
||
(insert "\n")
|
||
(forward-line 1))
|
||
(beginning-of-line))
|
||
(if (not (eolp)) (vip-forward-char-carefully)))
|
||
(set-marker (vip-mark-marker) (point) (current-buffer))
|
||
(vip-set-destructive-command
|
||
(list 'vip-put-back val nil vip-use-register nil nil))
|
||
(vip-loop val (vip-yank text)))
|
||
;; Vi puts cursor on the last char when the yanked text doesn't contain a
|
||
;; newline; it leaves the cursor at the beginning when the text contains
|
||
;; a newline
|
||
(if (vip-same-line (point) (mark))
|
||
(or (= (point) (mark)) (vip-backward-char-carefully))
|
||
(exchange-point-and-mark)
|
||
(if (bolp)
|
||
(back-to-indentation)))
|
||
(vip-deactivate-mark))
|
||
|
||
(defun vip-Put-back (arg)
|
||
"Put back at point/above line."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg))
|
||
(text (if vip-use-register
|
||
(cond ((vip-valid-register vip-use-register '(digit))
|
||
(current-kill (- vip-use-register ?1) 'do-not-rotate))
|
||
((vip-valid-register vip-use-register)
|
||
(get-register (downcase vip-use-register)))
|
||
(t (error vip-InvalidRegister vip-use-register)))
|
||
(current-kill 0))))
|
||
(if (null text)
|
||
(if vip-use-register
|
||
(let ((reg vip-use-register))
|
||
(setq vip-use-register nil)
|
||
(error vip-EmptyRegister reg))
|
||
(error "")))
|
||
(setq vip-use-register nil)
|
||
(if (vip-end-with-a-newline-p text) (beginning-of-line))
|
||
(vip-set-destructive-command
|
||
(list 'vip-Put-back val nil vip-use-register nil nil))
|
||
(set-marker (vip-mark-marker) (point) (current-buffer))
|
||
(vip-loop val (vip-yank text)))
|
||
;; Vi puts cursor on the last char when the yanked text doesn't contain a
|
||
;; newline; it leaves the cursor at the beginning when the text contains
|
||
;; a newline
|
||
(if (vip-same-line (point) (mark))
|
||
(or (= (point) (mark)) (vip-backward-char-carefully))
|
||
(exchange-point-and-mark)
|
||
(if (bolp)
|
||
(back-to-indentation)))
|
||
(vip-deactivate-mark))
|
||
|
||
|
||
;; Copy region to kill-ring.
|
||
;; If BEG and END do not belong to the same buffer, copy empty region.
|
||
(defun vip-copy-region-as-kill (beg end)
|
||
(condition-case nil
|
||
(copy-region-as-kill beg end)
|
||
(error (copy-region-as-kill beg beg))))
|
||
|
||
|
||
(defun vip-delete-char (arg)
|
||
"Delete character."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg)))
|
||
(vip-set-destructive-command (list 'vip-delete-char val nil nil nil nil))
|
||
(if (> val 1)
|
||
(save-excursion
|
||
(let ((here (point)))
|
||
(end-of-line)
|
||
(if (> val (- (point) here))
|
||
(setq val (- (point) here))))))
|
||
(if (and (eq val 0) (not vip-ex-style-motion)) (setq val 1))
|
||
(if (and vip-ex-style-motion (eolp))
|
||
(if (bolp) (error "") (setq val 0))) ; not bol---simply back 1 ch
|
||
(if vip-use-register
|
||
(progn
|
||
(cond ((vip-valid-register vip-use-register '((Letter)))
|
||
(vip-append-to-register
|
||
(downcase vip-use-register) (point) (- (point) val)))
|
||
((vip-valid-register vip-use-register)
|
||
(copy-to-register
|
||
vip-use-register (point) (- (point) val) nil))
|
||
(t (error vip-InvalidRegister vip-use-register)))
|
||
(setq vip-use-register nil)))
|
||
(if vip-ex-style-motion
|
||
(progn
|
||
(delete-char val t)
|
||
(if (and (eolp) (not (bolp))) (backward-char 1)))
|
||
(if (eolp)
|
||
(delete-backward-char val t)
|
||
(delete-char val t)))))
|
||
|
||
(defun vip-delete-backward-char (arg)
|
||
"Delete previous character. On reaching beginning of line, stop and beep."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg)))
|
||
(vip-set-destructive-command
|
||
(list 'vip-delete-backward-char val nil nil nil nil))
|
||
(if (> val 1)
|
||
(save-excursion
|
||
(let ((here (point)))
|
||
(beginning-of-line)
|
||
(if (> val (- here (point)))
|
||
(setq val (- here (point)))))))
|
||
(if vip-use-register
|
||
(progn
|
||
(cond ((vip-valid-register vip-use-register '(Letter))
|
||
(vip-append-to-register
|
||
(downcase vip-use-register) (point) (+ (point) val)))
|
||
((vip-valid-register vip-use-register)
|
||
(copy-to-register
|
||
vip-use-register (point) (+ (point) val) nil))
|
||
(t (error vip-InvalidRegister vip-use-register)))
|
||
(setq vip-use-register nil)))
|
||
(if (bolp) (ding)
|
||
(delete-backward-char val t))))
|
||
|
||
(defun vip-del-backward-char-in-insert ()
|
||
"Delete 1 char backwards while in insert mode."
|
||
(interactive)
|
||
(if (and vip-ex-style-editing-in-insert (bolp))
|
||
(beep 1)
|
||
(delete-backward-char 1 t)))
|
||
|
||
(defun vip-del-backward-char-in-replace ()
|
||
"Delete one character in replace mode.
|
||
If `vip-delete-backwards-in-replace' is t, then DEL key actually deletes
|
||
charecters. If it is nil, then the cursor just moves backwards, similarly
|
||
to Vi. The variable `vip-ex-style-editing-in-insert', if t, doesn't let the
|
||
cursor move past the beginning of line."
|
||
(interactive)
|
||
(cond (vip-delete-backwards-in-replace
|
||
(cond ((not (bolp))
|
||
(delete-backward-char 1 t))
|
||
(vip-ex-style-editing-in-insert
|
||
(beep 1))
|
||
((bobp)
|
||
(beep 1))
|
||
(t
|
||
(delete-backward-char 1 t))))
|
||
(vip-ex-style-editing-in-insert
|
||
(if (bolp)
|
||
(beep 1)
|
||
(backward-char 1)))
|
||
(t
|
||
(backward-char 1))))
|
||
|
||
|
||
|
||
;; join lines.
|
||
|
||
(defun vip-join-lines (arg)
|
||
"Join this line to next, if ARG is nil. Otherwise, join ARG lines."
|
||
(interactive "*P")
|
||
(let ((val (vip-P-val arg)))
|
||
(vip-set-destructive-command (list 'vip-join-lines val nil nil nil nil))
|
||
(vip-loop (if (null val) 1 (1- val))
|
||
(progn
|
||
(end-of-line)
|
||
(if (not (eobp))
|
||
(progn
|
||
(forward-line 1)
|
||
(delete-region (point) (1- (point)))
|
||
(fixup-whitespace)))))))
|
||
|
||
|
||
;; Replace state
|
||
|
||
(defun vip-change (beg end)
|
||
(if (markerp beg) (setq beg (marker-position beg)))
|
||
(if (markerp end) (setq end (marker-position end)))
|
||
;; beg is sometimes (mark t), which may be nil
|
||
(or beg (setq beg end))
|
||
|
||
(vip-set-complex-command-for-undo)
|
||
(if vip-use-register
|
||
(progn
|
||
(copy-to-register vip-use-register beg end nil)
|
||
(setq vip-use-register nil)))
|
||
(vip-set-replace-overlay beg end)
|
||
(setq last-command nil) ; separate repl text from prev kills
|
||
|
||
(if (= (vip-replace-start) (point-max))
|
||
(error "End of buffer"))
|
||
|
||
(setq vip-last-replace-region
|
||
(buffer-substring (vip-replace-start)
|
||
(vip-replace-end)))
|
||
|
||
;; protect against error while inserting "@" and other disasters
|
||
;; (e.g., read-only buff)
|
||
(condition-case conds
|
||
(if (vip-same-line (vip-replace-start)
|
||
(vip-replace-end))
|
||
(progn
|
||
;; tabs cause problems in replace, so untabify
|
||
(goto-char (vip-replace-end))
|
||
(insert-before-markers "@") ; put placeholder after the TAB
|
||
(untabify (vip-replace-start) (point))
|
||
;; del @, don't put on kill ring
|
||
(delete-backward-char 1)
|
||
|
||
(vip-set-replace-overlay-glyphs
|
||
vip-replace-region-start-delimiter
|
||
vip-replace-region-end-delimiter)
|
||
;; this move takes care of the last posn in the overlay, which
|
||
;; has to be shifted because of insert. We can't simply insert
|
||
;; "$" before-markers because then overlay-start will shift the
|
||
;; beginning of the overlay in case we are replacing a single
|
||
;; character. This fixes the bug with `s' and `cl' commands.
|
||
(vip-move-replace-overlay (vip-replace-start) (point))
|
||
(goto-char (vip-replace-start))
|
||
(vip-change-state-to-replace t))
|
||
(kill-region (vip-replace-start)
|
||
(vip-replace-end))
|
||
(vip-restore-cursor-color)
|
||
(vip-change-state-to-insert))
|
||
(error ;; make sure that the overlay doesn't stay.
|
||
;; go back to the original point
|
||
(goto-char (vip-replace-start))
|
||
(vip-hide-replace-overlay)
|
||
(vip-message-conditions conds))))
|
||
|
||
|
||
(defun vip-change-subr (beg end)
|
||
;; beg is sometimes (mark t), which may be nil
|
||
(or beg (setq beg end))
|
||
|
||
(if vip-use-register
|
||
(progn
|
||
(copy-to-register vip-use-register beg end nil)
|
||
(setq vip-use-register nil)))
|
||
(kill-region beg end)
|
||
(setq this-command 'vip-change)
|
||
(vip-yank-last-insertion))
|
||
|
||
(defun vip-toggle-case (arg)
|
||
"Toggle character case."
|
||
(interactive "P")
|
||
(let ((val (vip-p-val arg)) (c))
|
||
(vip-set-destructive-command (list 'vip-toggle-case val nil nil nil nil))
|
||
(while (> val 0)
|
||
(setq c (following-char))
|
||
(delete-char 1 nil)
|
||
(if (eq c (upcase c))
|
||
(insert-char (downcase c) 1)
|
||
(insert-char (upcase c) 1))
|
||
(if (eolp) (backward-char 1))
|
||
(setq val (1- val)))))
|
||
|
||
|
||
;; query replace
|
||
|
||
(defun vip-query-replace ()
|
||
"Query replace.
|
||
If a null string is suplied as the string to be replaced,
|
||
the query replace mode will toggle between string replace
|
||
and regexp replace."
|
||
(interactive)
|
||
(let (str)
|
||
(setq str (vip-read-string-with-history
|
||
(if vip-re-query-replace "Query replace regexp: "
|
||
"Query replace: ")
|
||
nil ; no initial
|
||
'vip-replace1-history
|
||
(car vip-replace1-history) ; default
|
||
))
|
||
(if (string= str "")
|
||
(progn
|
||
(setq vip-re-query-replace (not vip-re-query-replace))
|
||
(message "Query replace mode changed to %s"
|
||
(if vip-re-query-replace "regexp replace"
|
||
"string replace")))
|
||
(if vip-re-query-replace
|
||
(query-replace-regexp
|
||
str
|
||
(vip-read-string-with-history
|
||
(format "Query replace regexp `%s' with: " str)
|
||
nil ; no initial
|
||
'vip-replace1-history
|
||
(car vip-replace1-history) ; default
|
||
))
|
||
(query-replace
|
||
str
|
||
(vip-read-string-with-history
|
||
(format "Query replace `%s' with: " str)
|
||
nil ; no initial
|
||
'vip-replace1-history
|
||
(car vip-replace1-history) ; default
|
||
))))))
|
||
|
||
|
||
;; marking
|
||
|
||
(defun vip-mark-beginning-of-buffer ()
|
||
"Mark beginning of buffer."
|
||
(interactive)
|
||
(push-mark (point))
|
||
(goto-char (point-min))
|
||
(exchange-point-and-mark)
|
||
(message "Mark set at the beginning of buffer"))
|
||
|
||
(defun vip-mark-end-of-buffer ()
|
||
"Mark end of buffer."
|
||
(interactive)
|
||
(push-mark (point))
|
||
(goto-char (point-max))
|
||
(exchange-point-and-mark)
|
||
(message "Mark set at the end of buffer"))
|
||
|
||
(defun vip-mark-point ()
|
||
"Set mark at point of buffer."
|
||
(interactive)
|
||
(let ((char (vip-read-char-exclusive)))
|
||
(cond ((and (<= ?a char) (<= char ?z))
|
||
(point-to-register (1+ (- char ?a))))
|
||
((= char ?<) (vip-mark-beginning-of-buffer))
|
||
((= char ?>) (vip-mark-end-of-buffer))
|
||
((= char ?.) (vip-set-mark-if-necessary))
|
||
((= char ?,) (vip-cycle-through-mark-ring))
|
||
((= char ?D) (mark-defun))
|
||
(t (error ""))
|
||
)))
|
||
|
||
;; Algorithm: If first invocation of this command save mark on ring, goto
|
||
;; mark, M0, and pop the most recent elt from the mark ring into mark,
|
||
;; making it into the new mark, M1.
|
||
;; Push this mark back and set mark to the original point position, p1.
|
||
;; So, if you hit '' or `` then you can return to p1.
|
||
;;
|
||
;; If repeated command, pop top elt from the ring into mark and
|
||
;; jump there. This forgets the position, p1, and puts M1 back into mark.
|
||
;; Then we save the current pos, which is M0, jump to M1 and pop M2 from
|
||
;; the ring into mark. Push M2 back on the ring and set mark to M0.
|
||
;; etc.
|
||
(defun vip-cycle-through-mark-ring ()
|
||
"Visit previous locations on the mark ring.
|
||
One can use `` and '' to temporarily jump 1 step back."
|
||
(let* ((sv-pt (point)))
|
||
;; if repeated `m,' command, pop the previously saved mark.
|
||
;; Prev saved mark is actually prev saved point. It is used if the
|
||
;; user types `` or '' and is discarded
|
||
;; from the mark ring by the next `m,' command.
|
||
;; In any case, go to the previous or previously saved mark.
|
||
;; Then push the current mark (popped off the ring) and set current
|
||
;; point to be the mark. Current pt as mark is discarded by the next
|
||
;; m, command.
|
||
(if (eq last-command 'vip-cycle-through-mark-ring)
|
||
()
|
||
;; save current mark if the first iteration
|
||
(setq mark-ring (delete (vip-mark-marker) mark-ring))
|
||
(if (mark t)
|
||
(push-mark (mark t) t)) )
|
||
(pop-mark)
|
||
(set-mark-command 1)
|
||
;; don't duplicate mark on the ring
|
||
(setq mark-ring (delete (vip-mark-marker) mark-ring))
|
||
(push-mark sv-pt t)
|
||
(vip-deactivate-mark)
|
||
(setq this-command 'vip-cycle-through-mark-ring)
|
||
))
|
||
|
||
|
||
(defun vip-goto-mark (arg)
|
||
"Go to mark."
|
||
(interactive "P")
|
||
(let ((char (read-char))
|
||
(com (vip-getcom arg)))
|
||
(vip-goto-mark-subr char com nil)))
|
||
|
||
(defun vip-goto-mark-and-skip-white (arg)
|
||
"Go to mark and skip to first non-white character on line."
|
||
(interactive "P")
|
||
(let ((char (read-char))
|
||
(com (vip-getCom arg)))
|
||
(vip-goto-mark-subr char com t)))
|
||
|
||
(defun vip-goto-mark-subr (char com skip-white)
|
||
(if (eobp)
|
||
(if (bobp)
|
||
(error "Empty buffer")
|
||
(backward-char 1)))
|
||
(cond ((vip-valid-register char '(letter))
|
||
(let* ((buff (current-buffer))
|
||
(reg (1+ (- char ?a)))
|
||
(text-marker (get-register reg)))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(if (not (vip-valid-marker text-marker))
|
||
(error (format vip-EmptyTextmarker char)))
|
||
(if (and (vip-same-line (point) vip-last-jump)
|
||
(= (point) vip-last-jump-ignore))
|
||
(push-mark vip-last-jump t)
|
||
(push-mark nil t)) ; no msg
|
||
(vip-register-to-point reg)
|
||
(setq vip-last-jump (point-marker))
|
||
(cond (skip-white
|
||
(back-to-indentation)
|
||
(setq vip-last-jump-ignore (point))))
|
||
(if com
|
||
(if (equal buff (current-buffer))
|
||
(vip-execute-com (if skip-white
|
||
'vip-goto-mark-and-skip-white
|
||
'vip-goto-mark)
|
||
nil com)
|
||
(switch-to-buffer buff)
|
||
(goto-char vip-com-point)
|
||
(vip-change-state-to-vi)
|
||
(error "")))))
|
||
((and (not skip-white) (= char ?`))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(if (and (vip-same-line (point) vip-last-jump)
|
||
(= (point) vip-last-jump-ignore))
|
||
(goto-char vip-last-jump))
|
||
(if (= (point) (mark t)) (pop-mark))
|
||
(exchange-point-and-mark)
|
||
(setq vip-last-jump (point-marker)
|
||
vip-last-jump-ignore 0)
|
||
(if com (vip-execute-com 'vip-goto-mark nil com)))
|
||
((and skip-white (= char ?'))
|
||
(if com (vip-move-marker-locally 'vip-com-point (point)))
|
||
(if (and (vip-same-line (point) vip-last-jump)
|
||
(= (point) vip-last-jump-ignore))
|
||
(goto-char vip-last-jump))
|
||
(if (= (point) (mark t)) (pop-mark))
|
||
(exchange-point-and-mark)
|
||
(setq vip-last-jump (point))
|
||
(back-to-indentation)
|
||
(setq vip-last-jump-ignore (point))
|
||
(if com (vip-execute-com 'vip-goto-mark-and-skip-white nil com)))
|
||
(t (error vip-InvalidTextmarker char))))
|
||
|
||
(defun vip-insert-tab ()
|
||
(interactive)
|
||
(insert-tab))
|
||
|
||
(defun vip-exchange-point-and-mark ()
|
||
(interactive)
|
||
(exchange-point-and-mark)
|
||
(back-to-indentation))
|
||
|
||
;; Input Mode Indentation
|
||
|
||
;; Returns t, if the string before point matches the regexp STR.
|
||
(defsubst vip-looking-back (str)
|
||
(and (save-excursion (re-search-backward str nil t))
|
||
(= (point) (match-end 0))))
|
||
|
||
|
||
(defun vip-forward-indent ()
|
||
"Indent forward -- `C-t' in Vi."
|
||
(interactive)
|
||
(setq vip-cted t)
|
||
(indent-to (+ (current-column) vip-shift-width)))
|
||
|
||
(defun vip-backward-indent ()
|
||
"Backtab, C-d in VI"
|
||
(interactive)
|
||
(if vip-cted
|
||
(let ((p (point)) (c (current-column)) bol (indent t))
|
||
(if (vip-looking-back "[0^]")
|
||
(progn
|
||
(if (eq ?^ (preceding-char))
|
||
(setq vip-preserve-indent t))
|
||
(delete-backward-char 1)
|
||
(setq p (point))
|
||
(setq indent nil)))
|
||
(save-excursion
|
||
(beginning-of-line)
|
||
(setq bol (point)))
|
||
(if (re-search-backward "[^ \t]" bol 1) (forward-char))
|
||
(delete-region (point) p)
|
||
(if indent
|
||
(indent-to (- c vip-shift-width)))
|
||
(if (or (bolp) (vip-looking-back "[^ \t]"))
|
||
(setq vip-cted nil)))))
|
||
|
||
(defun vip-autoindent ()
|
||
"Auto Indentation, Vi-style."
|
||
(interactive)
|
||
(let ((col (current-indentation)))
|
||
(if vip-preserve-indent
|
||
(setq vip-preserve-indent nil)
|
||
(setq vip-current-indent col))
|
||
;; don't leave whitespace lines around
|
||
(if (memq last-command
|
||
'(vip-autoindent
|
||
vip-open-line vip-Open-line
|
||
vip-replace-state-exit-cmd))
|
||
(indent-to-left-margin))
|
||
(newline 1)
|
||
(if vip-auto-indent
|
||
(progn
|
||
(setq vip-cted t)
|
||
(if vip-electric-mode
|
||
(indent-according-to-mode)
|
||
(indent-to vip-current-indent))
|
||
))
|
||
))
|
||
|
||
|
||
;; Viewing registers
|
||
|
||
(defun vip-ket-function (arg)
|
||
"Function called by \], the ket. View registers and call \]\]."
|
||
(interactive "P")
|
||
(let ((reg (read-char)))
|
||
(cond ((vip-valid-register reg '(letter Letter))
|
||
(view-register (downcase reg)))
|
||
((vip-valid-register reg '(digit))
|
||
(let ((text (current-kill (- reg ?1) 'do-not-rotate)))
|
||
(save-excursion
|
||
(set-buffer (get-buffer-create "*Output*"))
|
||
(delete-region (point-min) (point-max))
|
||
(insert (format "Register %c contains the string:\n" reg))
|
||
(insert text)
|
||
(goto-char (point-min)))
|
||
(display-buffer "*Output*")))
|
||
((= ?\] reg)
|
||
(vip-next-heading arg))
|
||
(t (error
|
||
vip-InvalidRegister reg)))))
|
||
|
||
(defun vip-brac-function (arg)
|
||
"Function called by \[, the brac. View textmarkers and call \[\["
|
||
(interactive "P")
|
||
(let ((reg (read-char)))
|
||
(cond ((= ?\[ reg)
|
||
(vip-prev-heading arg))
|
||
((= ?\] reg)
|
||
(vip-heading-end arg))
|
||
((vip-valid-register reg '(letter))
|
||
(let* ((val (get-register (1+ (- reg ?a))))
|
||
(buf (if (not val)
|
||
(error
|
||
(format vip-EmptyTextmarker reg))
|
||
(marker-buffer val)))
|
||
(pos (marker-position val))
|
||
line-no text (s pos) (e pos))
|
||
(save-excursion
|
||
(set-buffer (get-buffer-create "*Output*"))
|
||
(delete-region (point-min) (point-max))
|
||
(if (and buf pos)
|
||
(progn
|
||
(save-excursion
|
||
(set-buffer buf)
|
||
(setq line-no (1+ (count-lines (point-min) val)))
|
||
(goto-char pos)
|
||
(beginning-of-line)
|
||
(if (re-search-backward "[^ \t]" nil t)
|
||
(progn
|
||
(beginning-of-line)
|
||
(setq s (point))))
|
||
(goto-char pos)
|
||
(forward-line 1)
|
||
(if (re-search-forward "[^ \t]" nil t)
|
||
(progn
|
||
(end-of-line)
|
||
(setq e (point))))
|
||
(setq text (buffer-substring s e))
|
||
(setq text (format "%s<%c>%s"
|
||
(substring text 0 (- pos s))
|
||
reg (substring text (- pos s)))))
|
||
(insert
|
||
(format
|
||
"Textmarker `%c' is in buffer `%s' at line %d.\n"
|
||
reg (buffer-name buf) line-no))
|
||
(insert (format "Here is some text around %c:\n\n %s"
|
||
reg text)))
|
||
(insert (format vip-EmptyTextmarker reg)))
|
||
(goto-char (point-min)))
|
||
(display-buffer "*Output*")))
|
||
(t (error vip-InvalidTextmarker reg)))))
|
||
|
||
|
||
|
||
;; commands in insertion mode
|
||
|
||
(defun vip-delete-backward-word (arg)
|
||
"Delete previous word."
|
||
(interactive "p")
|
||
(save-excursion
|
||
(push-mark nil t)
|
||
(backward-word arg)
|
||
(delete-region (point) (mark t))
|
||
(pop-mark)))
|
||
|
||
|
||
(defun vip-set-expert-level (&optional dont-change-unless)
|
||
"Sets the expert level for a Viper user.
|
||
Can be called interactively to change (temporarily or permanently) the
|
||
current expert level.
|
||
|
||
The optional argument DONT-CHANGE-UNLESS if not nil, says that
|
||
the level should not be changed, unless its current value is
|
||
meaningless (i.e., not one of 1,2,3,4,5).
|
||
|
||
User level determines the setting of Viper variables that are most
|
||
sensitive for VI-style look-and-feel."
|
||
|
||
(interactive)
|
||
|
||
(if (not (numberp vip-expert-level)) (setq vip-expert-level 0))
|
||
|
||
(save-window-excursion
|
||
(delete-other-windows)
|
||
;; if 0 < vip-expert-level < vip-max-expert-level
|
||
;; & dont-change-unless = t -- use it; else ask
|
||
(vip-ask-level dont-change-unless))
|
||
|
||
(setq vip-always t
|
||
vip-ex-style-motion t
|
||
vip-ex-style-editing-in-insert t
|
||
vip-want-ctl-h-help nil)
|
||
|
||
(cond
|
||
;; a novice or a beginner
|
||
((eq vip-expert-level 1)
|
||
(global-set-key vip-toggle-key ;; in emacs-state
|
||
(if (vip-window-display-p)
|
||
'vip-iconify
|
||
'suspend-emacs))
|
||
(setq vip-no-multiple-ESC t
|
||
vip-re-search t
|
||
vip-vi-style-in-minibuffer t
|
||
vip-search-wrap-around-t t
|
||
vip-want-emacs-keys-in-vi nil
|
||
vip-want-emacs-keys-in-insert nil))
|
||
|
||
;; an intermediate to guru
|
||
((and (> vip-expert-level 1) (< vip-expert-level 5))
|
||
(setq vip-no-multiple-ESC (if (vip-window-display-p) t 'twice)
|
||
vip-want-emacs-keys-in-vi t
|
||
vip-want-emacs-keys-in-insert (> vip-expert-level 2))
|
||
|
||
(if (eq vip-expert-level 4) ; respect user's ex-style motions
|
||
; and vip-no-multiple-ESC
|
||
(progn
|
||
(setq-default vip-ex-style-editing-in-insert
|
||
(cdr (assoc 'vip-ex-style-editing-in-insert
|
||
vip-saved-user-settings))
|
||
vip-ex-style-motion
|
||
(cdr (assoc 'vip-ex-style-motion
|
||
vip-saved-user-settings)))
|
||
(setq vip-ex-style-motion
|
||
(cdr (assoc 'vip-ex-style-motion vip-saved-user-settings))
|
||
vip-ex-style-editing-in-insert
|
||
(cdr (assoc 'vip-ex-style-editing-in-insert
|
||
vip-saved-user-settings))
|
||
vip-re-search
|
||
(cdr (assoc 'vip-re-search vip-saved-user-settings))
|
||
vip-no-multiple-ESC
|
||
(cdr (assoc 'vip-no-multiple-ESC
|
||
vip-saved-user-settings))))))
|
||
|
||
;; A wizard
|
||
;; Ideally, if 5 is selected, a buffer should pop up to let the
|
||
;; user toggle variable values.
|
||
(t (setq-default vip-ex-style-editing-in-insert
|
||
(cdr (assoc 'vip-ex-style-editing-in-insert
|
||
vip-saved-user-settings))
|
||
vip-ex-style-motion
|
||
(cdr (assoc 'vip-ex-style-motion
|
||
vip-saved-user-settings)))
|
||
(setq vip-want-ctl-h-help
|
||
(cdr (assoc 'vip-want-ctl-h-help vip-saved-user-settings))
|
||
vip-always
|
||
(cdr (assoc 'vip-always vip-saved-user-settings))
|
||
vip-no-multiple-ESC
|
||
(cdr (assoc 'vip-no-multiple-ESC vip-saved-user-settings))
|
||
vip-ex-style-motion
|
||
(cdr (assoc 'vip-ex-style-motion vip-saved-user-settings))
|
||
vip-ex-style-editing-in-insert
|
||
(cdr (assoc 'vip-ex-style-editing-in-insert
|
||
vip-saved-user-settings))
|
||
vip-re-search
|
||
(cdr (assoc 'vip-re-search vip-saved-user-settings))
|
||
vip-want-emacs-keys-in-vi
|
||
(cdr (assoc 'vip-want-emacs-keys-in-vi
|
||
vip-saved-user-settings))
|
||
vip-want-emacs-keys-in-insert
|
||
(cdr (assoc 'vip-want-emacs-keys-in-insert
|
||
vip-saved-user-settings)))))
|
||
(vip-set-mode-vars-for vip-current-state)
|
||
(if (or vip-always
|
||
(and (> vip-expert-level 0) (> 5 vip-expert-level)))
|
||
(vip-set-hooks)))
|
||
|
||
;; Ask user expert level.
|
||
(defun vip-ask-level (dont-change-unless)
|
||
(let ((ask-buffer " *vip-ask-level*")
|
||
level-changed repeated)
|
||
(save-window-excursion
|
||
(switch-to-buffer ask-buffer)
|
||
|
||
(or (eq this-command 'vip-set-expert-level)
|
||
(and
|
||
(<= vip-expert-level vip-max-expert-level)
|
||
(>= vip-expert-level 1))
|
||
(progn
|
||
(insert "
|
||
|
||
*** Important Notice for VIP users***
|
||
|
||
This is VIPER
|
||
|
||
@joke
|
||
Viper Is a Package for Emacs Rebels,
|
||
a VI Plan for Emacs Rescue,
|
||
and a venomous VI PERil.
|
||
@end joke
|
||
|
||
Technically speaking, Viper is a new Vi emulator that replaces
|
||
the old VIP package.
|
||
|
||
Viper emulates Vi much better than VIP. It also significantly
|
||
extends and improves upon Vi in many useful ways.
|
||
|
||
Although many VIP settings in your ~/.vip are compatible with Viper,
|
||
you may have to change some of them. Please refer to the documentation,
|
||
which can be obtained by executing
|
||
|
||
:help
|
||
|
||
when Viper is in Vi state.
|
||
|
||
If you will be so lucky as to find a bug, report it via the command
|
||
|
||
:submitReport
|
||
|
||
Type any key to continue... ")
|
||
|
||
(read-char)
|
||
(erase-buffer)))
|
||
|
||
(while (or (> vip-expert-level vip-max-expert-level)
|
||
(< vip-expert-level 1)
|
||
(null dont-change-unless))
|
||
(erase-buffer)
|
||
(if repeated
|
||
(progn
|
||
(message "Invalid user level")
|
||
(beep 1))
|
||
(setq repeated t))
|
||
(setq dont-change-unless t
|
||
level-changed t)
|
||
(insert "
|
||
Please specify your level of familiarity with the venomous VI PERil
|
||
(and the VI Plan for Emacs Rescue).
|
||
You can change it at any time by typing `M-x vip-set-expert-level RET'
|
||
|
||
1 -- BEGINNER: Almost all Emacs features are suppressed.
|
||
Feels almost like straight Vi. File name completion and
|
||
command history in the minibuffer are thrown in as a bonus.
|
||
To use Emacs productively, you must reach level 3 or higher.
|
||
2 -- MASTER: C-c now has its standard Emacs meaning in Vi command state,
|
||
so most Emacs commands can be used when Viper is in Vi state.
|
||
Good progress---you are well on the way to level 3!
|
||
3 -- GRAND MASTER: Like 3, but most Emacs commands are available also
|
||
in Viper's insert state.
|
||
4 -- GURU: Like 3, but user settings are respected for vip-no-multiple-ESC,
|
||
vip-re-search, vip-ex-style-motion, & vip-ex-style-editing-in-insert
|
||
variables. Adjust these settings to your taste.
|
||
5 -- WIZARD: Like 4, but user settings are also respected for vip-always,
|
||
vip-want-ctl-h-help, vip-want-emacs-keys-in-vi, and
|
||
vip-want-emacs-keys-in-insert. Adjust these to your taste.
|
||
|
||
Please, specify your level now: ")
|
||
|
||
(setq vip-expert-level (- (vip-read-char-exclusive) ?0))
|
||
) ; end while
|
||
|
||
;; tell the user if level was changed
|
||
(and level-changed
|
||
(progn
|
||
(insert
|
||
(format "\n\n\n\n\n\t\tYou have selected user level %d"
|
||
vip-expert-level))
|
||
(if (y-or-n-p "Do you wish to make this change permanent? ")
|
||
;; save the setting for vip-expert-level
|
||
(vip-save-setting
|
||
'vip-expert-level
|
||
(format "Saving user level %d ..." vip-expert-level)
|
||
vip-custom-file-name))
|
||
))
|
||
(bury-buffer) ; remove ask-buffer from screen
|
||
(message "")
|
||
)))
|
||
|
||
|
||
(defun viper-version ()
|
||
(interactive)
|
||
(message "Viper version is %s" viper-version))
|
||
|
||
(defalias 'vip-version 'viper-version)
|
||
|
||
(defun vip-nil ()
|
||
(interactive)
|
||
(beep 1))
|
||
|
||
|
||
;; if ENFORCE-BUFFER is not nil, error if CHAR is a marker in another buffer
|
||
(defun vip-register-to-point (char &optional enforce-buffer)
|
||
"Like jump-to-register, but switches to another buffer in another window."
|
||
(interactive "cViper register to point: ")
|
||
(let ((val (get-register char)))
|
||
(cond
|
||
((and (fboundp 'frame-configuration-p)
|
||
(frame-configuration-p val))
|
||
(set-frame-configuration val))
|
||
((window-configuration-p val)
|
||
(set-window-configuration val))
|
||
((vip-valid-marker val)
|
||
(if (and enforce-buffer
|
||
(not (equal (current-buffer) (marker-buffer val))))
|
||
(error (concat vip-EmptyTextmarker " in this buffer")
|
||
(1- (+ char ?a))))
|
||
(pop-to-buffer (marker-buffer val))
|
||
(goto-char val))
|
||
((and (consp val) (eq (car val) 'file))
|
||
(find-file (cdr val)))
|
||
(t
|
||
(error vip-EmptyTextmarker (1- (+ char ?a)))))))
|
||
|
||
|
||
(defun vip-save-kill-buffer ()
|
||
"Save then kill current buffer. "
|
||
(interactive)
|
||
(if (< vip-expert-level 2)
|
||
(save-buffers-kill-emacs)
|
||
(save-buffer)
|
||
(kill-buffer (current-buffer))))
|
||
|
||
|
||
|
||
;;; Bug Report
|
||
|
||
(defun vip-submit-report ()
|
||
"Submit bug report on Viper."
|
||
(interactive)
|
||
(let ((reporter-prompt-for-summary-p t)
|
||
(vip-device-type (vip-device-type))
|
||
color-display-p frame-parameters
|
||
minibuffer-emacs-face minibuffer-vi-face minibuffer-insert-face
|
||
varlist salutation window-config)
|
||
|
||
;; If mode info is needed, add variable to `let' and then set it below,
|
||
;; like we did with color-display-p.
|
||
(setq color-display-p (if (vip-window-display-p)
|
||
(vip-color-display-p)
|
||
'non-x)
|
||
minibuffer-vi-face (if (vip-has-face-support-p)
|
||
(vip-get-face vip-minibuffer-vi-face)
|
||
'non-x)
|
||
minibuffer-insert-face (if (vip-has-face-support-p)
|
||
(vip-get-face vip-minibuffer-insert-face)
|
||
'non-x)
|
||
minibuffer-emacs-face (if (vip-has-face-support-p)
|
||
(vip-get-face vip-minibuffer-emacs-face)
|
||
'non-x)
|
||
frame-parameters (if (fboundp 'frame-parameters)
|
||
(frame-parameters (selected-frame))))
|
||
|
||
(setq varlist (list 'vip-vi-minibuffer-minor-mode
|
||
'vip-insert-minibuffer-minor-mode
|
||
'vip-vi-intercept-minor-mode
|
||
'vip-vi-local-user-minor-mode
|
||
'vip-vi-kbd-minor-mode
|
||
'vip-vi-global-user-minor-mode
|
||
'vip-vi-state-modifier-minor-mode
|
||
'vip-vi-diehard-minor-mode
|
||
'vip-vi-basic-minor-mode
|
||
'vip-replace-minor-mode
|
||
'vip-insert-intercept-minor-mode
|
||
'vip-insert-local-user-minor-mode
|
||
'vip-insert-kbd-minor-mode
|
||
'vip-insert-global-user-minor-mode
|
||
'vip-insert-state-modifier-minor-mode
|
||
'vip-insert-diehard-minor-mode
|
||
'vip-insert-basic-minor-mode
|
||
'vip-emacs-intercept-minor-mode
|
||
'vip-emacs-local-user-minor-mode
|
||
'vip-emacs-kbd-minor-mode
|
||
'vip-emacs-global-user-minor-mode
|
||
'vip-emacs-state-modifier-minor-mode
|
||
'vip-automatic-iso-accents
|
||
'vip-want-emacs-keys-in-insert
|
||
'vip-want-emacs-keys-in-vi
|
||
'vip-keep-point-on-undo
|
||
'vip-no-multiple-ESC
|
||
'vip-ESC-key
|
||
'vip-want-ctl-h-help
|
||
'vip-ex-style-editing-in-insert
|
||
'vip-delete-backwards-in-replace
|
||
'vip-vi-style-in-minibuffer
|
||
'vip-vi-state-hook
|
||
'vip-insert-state-hook
|
||
'vip-replace-state-hook
|
||
'vip-emacs-state-hook
|
||
'ex-cycle-other-window
|
||
'ex-cycle-through-non-files
|
||
'vip-expert-level
|
||
'major-mode
|
||
'vip-device-type
|
||
'color-display-p
|
||
'frame-parameters
|
||
'minibuffer-vi-face
|
||
'minibuffer-insert-face
|
||
'minibuffer-emacs-face
|
||
))
|
||
(setq salutation "
|
||
Congratulations! You may have unearthed a bug in Viper!
|
||
Please mail a concise, accurate summary of the problem to the address above.
|
||
|
||
-------------------------------------------------------------------")
|
||
(setq window-config (current-window-configuration))
|
||
(with-output-to-temp-buffer " *vip-info*"
|
||
(switch-to-buffer " *vip-info*")
|
||
(delete-other-windows)
|
||
(princ "
|
||
PLEASE FOLLOW THESE PROCEDURES
|
||
------------------------------
|
||
|
||
Before reporting a bug, please verify that it is related to Viper, and is
|
||
not cause by other packages you are using.
|
||
|
||
Don't report compilation warnings, unless you are certain that there is a
|
||
problem. These warnings are normal and unavoidable.
|
||
|
||
Please note that users should not modify variables and keymaps other than
|
||
those advertised in the manual. Such `customization' is likely to crash
|
||
Viper, as it would any other improperly customized Emacs package.
|
||
|
||
If you are reporting an error message received while executing one of the
|
||
Viper commands, type:
|
||
|
||
M-x set-variable <Return> debug-on-error <Return> t <Return>
|
||
|
||
Then reproduce the error. The above command will cause Emacs to produce a
|
||
back trace of the execution that leads to the error. Please include this
|
||
trace in your bug report.
|
||
|
||
If you believe that one of Viper's commands goes into an infinite loop
|
||
\(e.g., Emacs freezes\), type:
|
||
|
||
M-x set-variable <Return> debug-on-quit <Return> t <Return>
|
||
|
||
Then reproduce the problem. Wait for a few seconds, then type C-g to abort
|
||
the current command. Include the resulting back trace in the bug report.
|
||
|
||
Mail anyway (y or n)? ")
|
||
(if (y-or-n-p "Mail anyway? ")
|
||
()
|
||
(set-window-configuration window-config)
|
||
(error "Bug report aborted")))
|
||
|
||
(require 'reporter)
|
||
(set-window-configuration window-config)
|
||
|
||
(reporter-submit-bug-report "kifer@cs.sunysb.edu"
|
||
(vip-version)
|
||
varlist
|
||
nil 'delete-other-windows
|
||
salutation)
|
||
))
|
||
|
||
|
||
|
||
|
||
;; Smoothes out the difference between Emacs' unread-command-events
|
||
;; and XEmacs unread-command-event. Arg is a character, an event, a list of
|
||
;; events or a sequence of keys.
|
||
;;
|
||
;; Due to the way unread-command-events in Emacs (not XEmacs), a non-event
|
||
;; symbol in unread-command-events list may cause Emacs to turn this symbol
|
||
;; into an event. Below, we delete nil from event lists, since nil is the most
|
||
;; common symbol that might appear in this wrong context.
|
||
(defun vip-set-unread-command-events (arg)
|
||
(if vip-emacs-p
|
||
(setq
|
||
unread-command-events
|
||
(let ((new-events
|
||
(cond ((eventp arg) (list arg))
|
||
((listp arg) arg)
|
||
((sequencep arg)
|
||
(listify-key-sequence arg))
|
||
(t (error
|
||
"vip-set-unread-command-events: Invalid argument, %S"
|
||
arg)))))
|
||
(if (not (eventp nil))
|
||
(setq new-events (delq nil new-events)))
|
||
(append new-events unread-command-events)))
|
||
;; XEmacs
|
||
(setq
|
||
unread-command-events
|
||
(append
|
||
(cond ((numberp arg) (list (character-to-event arg)))
|
||
((eventp arg) (list arg))
|
||
((stringp arg) (mapcar 'character-to-event arg))
|
||
((vectorp arg) (append arg nil)) ; turn into list
|
||
((listp arg) (vip-eventify-list-xemacs arg))
|
||
(t (error
|
||
"vip-set-unread-command-events: Invalid argument, %S" arg)))
|
||
unread-command-events))))
|
||
|
||
;; list is assumed to be a list of events of characters
|
||
(defun vip-eventify-list-xemacs (lis)
|
||
(mapcar
|
||
(function (lambda (elt)
|
||
(cond ((numberp elt) (character-to-event elt))
|
||
((eventp elt) elt)
|
||
(t (error
|
||
"vip-eventify-list-xemacs: can't convert to event, %S"
|
||
elt)))))
|
||
lis))
|
||
|
||
|
||
|
||
;;; Bring in the rest of the files
|
||
(require 'viper-mous)
|
||
(require 'viper-macs)
|
||
(require 'viper-ex)
|
||
|
||
|
||
|
||
;; The following is provided for compatibility with older VIP's
|
||
|
||
(defalias 'vip-change-mode-to-vi 'vip-change-state-to-vi)
|
||
(defalias 'vip-change-mode-to-insert 'vip-change-state-to-insert)
|
||
(defalias 'vip-change-mode-to-emacs 'vip-change-state-to-emacs)
|
||
|
||
|
||
|
||
;;; Load .vip and set up hooks
|
||
|
||
;; This hook designed to enable Vi-style editing in comint-based modes."
|
||
(defun vip-comint-mode-hook ()
|
||
(setq require-final-newline nil)
|
||
(setq vip-ex-style-editing-in-insert nil
|
||
vip-ex-style-motion nil)
|
||
(vip-add-local-keys 'vi-state
|
||
'(("\C-m" . comint-send-input) ; return
|
||
("\C-d" . comint-delchar-or-maybe-eof))) ; \C-d
|
||
(vip-add-local-keys 'insert-state
|
||
'(("\C-m" . comint-send-input) ; return
|
||
("\C-d" . comint-delchar-or-maybe-eof))) ; \C-d
|
||
)
|
||
|
||
|
||
;; This sets major mode hooks to make them come up in vi-state.
|
||
(defun vip-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.
|
||
(setq default-major-mode 'viper-mode)
|
||
|
||
;; The following major modes should come up in vi-state
|
||
(defadvice fundamental-mode (after vip-fundamental-mode-ad activate)
|
||
"Run `vip-change-state-to-vi' on entry."
|
||
(vip-change-state-to-vi))
|
||
|
||
(defvar makefile-mode-hook nil)
|
||
(add-hook 'makefile-mode-hook 'viper-mode)
|
||
|
||
(defvar help-mode-hook nil)
|
||
(add-hook 'help-mode-hook 'viper-mode)
|
||
|
||
(defvar awk-mode-hook nil)
|
||
(add-hook 'awk-mode-hook 'viper-mode)
|
||
|
||
(defvar html-mode-hook nil)
|
||
(add-hook 'html-mode-hook 'viper-mode)
|
||
(defvar html-helper-mode-hook nil)
|
||
(add-hook 'html-helper-mode-hook 'viper-mode)
|
||
|
||
(defvar emacs-lisp-mode-hook nil)
|
||
(add-hook 'emacs-lisp-mode-hook 'viper-mode)
|
||
|
||
(defvar lisp-mode-hook nil)
|
||
(add-hook 'lisp-mode-hook 'viper-mode)
|
||
|
||
(defvar bibtex-mode-hook nil)
|
||
(add-hook 'bibtex-mode-hook 'viper-mode)
|
||
|
||
(defvar cc-mode-hook nil)
|
||
(add-hook 'cc-mode-hook 'viper-mode)
|
||
|
||
(defvar c-mode-hook nil)
|
||
(add-hook 'c-mode-hook 'viper-mode)
|
||
|
||
(defvar c++-mode-hook nil)
|
||
(add-hook 'c++-mode-hook 'viper-mode)
|
||
|
||
(defvar lisp-interaction-mode-hook nil)
|
||
(add-hook 'lisp-interaction-mode-hook 'viper-mode)
|
||
|
||
(defvar text-mode-hook nil)
|
||
(add-hook 'text-mode-hook 'viper-mode)
|
||
|
||
(add-hook 'completion-list-mode-hook 'viper-mode)
|
||
(add-hook 'compilation-mode-hook 'viper-mode)
|
||
|
||
(add-hook 'perl-mode-hook 'viper-mode)
|
||
(add-hook 'tcl-mode-hook 'viper-mode)
|
||
|
||
(defvar emerge-startup-hook nil)
|
||
(add-hook 'emerge-startup-hook 'vip-change-state-to-emacs)
|
||
;; Run vip-change-state-to-vi after quitting emerge.
|
||
(vip-eval-after-load
|
||
"emerge"
|
||
'(defadvice emerge-quit (after vip-emerge-advice activate)
|
||
"Run `vip-change-state-to-vi' after quitting emerge."
|
||
(vip-change-state-to-vi)))
|
||
;; In case Emerge was loaded before Viper.
|
||
(defadvice emerge-quit (after vip-emerge-advice activate)
|
||
"Run `vip-change-state-to-vi' after quitting emerge."
|
||
(vip-change-state-to-vi))
|
||
|
||
(vip-eval-after-load
|
||
"asm-mode"
|
||
'(defadvice asm-mode (after vip-asm-mode-ad activate)
|
||
"Run `vip-change-state-to-vi' on entry."
|
||
(vip-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.
|
||
(vip-eval-after-load
|
||
"passwd"
|
||
'(defadvice read-passwd-1 (before vip-passwd-ad activate)
|
||
"Switch to emacs state while reading password."
|
||
(vip-change-state-to-emacs)))
|
||
|
||
(vip-eval-after-load
|
||
"prolog"
|
||
'(defadvice prolog-mode (after vip-prolog-ad activate)
|
||
"Switch to Vi state in Prolog mode."
|
||
(vip-change-state-to-vi)))
|
||
|
||
;; Emacs shell, ange-ftp, and comint-based modes
|
||
(defvar comint-mode-hook nil)
|
||
(add-hook 'comint-mode-hook 'vip-change-state-to-insert)
|
||
(add-hook 'comint-mode-hook 'vip-comint-mode-hook)
|
||
|
||
;; Shell scripts
|
||
(defvar sh-mode-hook nil)
|
||
(add-hook 'sh-mode-hook 'viper-mode)
|
||
(defvar ksh-mode-hook nil)
|
||
(add-hook 'ksh-mode-hook 'viper-mode)
|
||
|
||
;; Dired
|
||
;; This is only necessary when the user uses vip-modify-major-mode
|
||
(add-hook 'dired-mode-hook 'vip-change-state-to-emacs)
|
||
|
||
(if vip-emacs-p
|
||
(progn
|
||
(defvar view-mode-hook nil
|
||
"View hook. Run after view mode.")
|
||
(add-hook 'view-mode-hook 'vip-change-state-to-emacs))
|
||
(defadvice view-minor-mode (after vip-view-ad activate)
|
||
"Switch to Emacs state in View mode."
|
||
(vip-change-state-to-emacs))
|
||
(defvar view-hook nil
|
||
"View hook. Run after view mode.")
|
||
(add-hook 'view-hook 'vip-change-state-to-emacs))
|
||
|
||
;; For VM users.
|
||
;; Put summary and other VM buffers in Emacs state.
|
||
(defvar vm-mode-hooks nil
|
||
"This hook is run after vm is started.")
|
||
(defvar vm-summary-mode-hooks nil
|
||
"This hook is run after vm switches to summary mode.")
|
||
(add-hook 'vm-mode-hooks 'vip-change-state-to-emacs)
|
||
(add-hook 'vm-summary-mode-hooks 'vip-change-state-to-emacs)
|
||
|
||
;; For RMAIL users.
|
||
;; Put buf in Emacs state after edit.
|
||
(vip-eval-after-load
|
||
"rmailedit"
|
||
'(defadvice rmail-cease-edit (after vip-rmail-advice activate)
|
||
"Switch to emacs state when done editing message."
|
||
(vip-change-state-to-emacs)))
|
||
;; In case RMAIL was loaded before Viper.
|
||
(defadvice rmail-cease-edit (after vip-rmail-advice activate)
|
||
"Switch to emacs state when done editing message."
|
||
(vip-change-state-to-emacs))
|
||
) ; vip-set-hooks
|
||
|
||
;; Set some useful macros
|
||
;; These must be before we load .vip, so the user can unrecord them.
|
||
|
||
;; repeat the 2nd previous command without rotating the command history
|
||
(vip-record-kbd-macro
|
||
(vector vip-repeat-from-history-key '\1) 'vi-state
|
||
[(meta x) v i p - 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
|
||
(vip-record-kbd-macro
|
||
(vector vip-repeat-from-history-key '\2) 'vi-state
|
||
[(meta x) v i p - r e p e a t - f r o m - h i s t o r y return] 't)
|
||
|
||
;; toggle case sensitivity in search
|
||
(vip-record-kbd-macro
|
||
"//" 'vi-state
|
||
[1 (meta x) v i p - t o g g l e - s e a r c h - s t y l e return] 't)
|
||
;; toggle regexp/vanila search
|
||
(vip-record-kbd-macro
|
||
"///" 'vi-state
|
||
[2 (meta x) v i p - t o g g l e - s e a r c h - s t y l e return] 't)
|
||
|
||
|
||
;; ~/.vip is loaded if it exists
|
||
(if (and (file-exists-p vip-custom-file-name)
|
||
(not noninteractive))
|
||
(load vip-custom-file-name))
|
||
|
||
;; VIP compatibility: merge whatever the user has in vip-mode-map into
|
||
;; Viper's basic map.
|
||
(vip-add-keymap vip-mode-map vip-vi-global-user-map)
|
||
|
||
|
||
;; Applying Viper customization -- runs after (load .vip)
|
||
|
||
;; Save user settings or Viper defaults for vars controled by vip-expert-level
|
||
(setq vip-saved-user-settings
|
||
(list (cons 'vip-want-ctl-h-help vip-want-ctl-h-help)
|
||
(cons 'vip-always vip-always)
|
||
(cons 'vip-no-multiple-ESC vip-no-multiple-ESC)
|
||
(cons 'vip-ex-style-motion vip-ex-style-motion)
|
||
(cons 'vip-ex-style-editing-in-insert
|
||
vip-ex-style-editing-in-insert)
|
||
(cons 'vip-want-emacs-keys-in-vi vip-want-emacs-keys-in-vi)
|
||
(cons 'vip-want-emacs-keys-in-insert vip-want-emacs-keys-in-insert)
|
||
(cons 'vip-re-search vip-re-search)))
|
||
|
||
|
||
(vip-set-minibuffer-style)
|
||
(vip-set-minibuffer-faces)
|
||
(vip-set-search-face)
|
||
(if vip-buffer-search-char
|
||
(vip-buffer-search-enable))
|
||
(vip-update-alphanumeric-class)
|
||
|
||
;;; Familiarize Viper with some minor modes that have their own keymaps
|
||
(vip-harness-minor-mode "compile")
|
||
(vip-harness-minor-mode "outline")
|
||
(vip-harness-minor-mode "allout")
|
||
(vip-harness-minor-mode "xref")
|
||
(vip-harness-minor-mode "lmenu")
|
||
(vip-harness-minor-mode "vc")
|
||
(vip-harness-minor-mode "ltx-math") ; LaTeX-math-mode in AUC-TeX
|
||
(vip-harness-minor-mode "latex") ; which is in one of these two files
|
||
(vip-harness-minor-mode "cyrillic")
|
||
(vip-harness-minor-mode "russian")
|
||
(vip-harness-minor-mode "view-less")
|
||
(vip-harness-minor-mode "view")
|
||
|
||
|
||
;; Intercept maps could go in viper-keym.el
|
||
;; We keep them here in case someone redefines them in ~/.vip
|
||
|
||
(define-key vip-vi-intercept-map vip-ESC-key 'vip-intercept-ESC-key)
|
||
(define-key vip-insert-intercept-map vip-ESC-key 'vip-intercept-ESC-key)
|
||
|
||
;; This is taken care of by vip-insert-global-user-map.
|
||
;;(define-key vip-replace-map vip-ESC-key 'vip-intercept-ESC-key)
|
||
|
||
(define-key vip-insert-intercept-map vip-toggle-key 'vip-alternate-ESC)
|
||
;; The default vip-toggle-key is \C-z; for the novice, it suspends or
|
||
;; iconifies Emacs
|
||
(define-key vip-vi-intercept-map vip-toggle-key
|
||
'(lambda () (interactive)
|
||
(if (and (< vip-expert-level 2) (equal vip-toggle-key "\C-z"))
|
||
(if (vip-window-display-p) (vip-iconify) (suspend-emacs))
|
||
(vip-change-state-to-emacs))))
|
||
|
||
(define-key vip-emacs-intercept-map vip-toggle-key 'vip-change-state-to-vi)
|
||
|
||
|
||
(if (or vip-always
|
||
(and (< vip-expert-level 5) (> vip-expert-level 0)))
|
||
(vip-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 vip-change-state-*
|
||
(if (eq vip-current-state 'emacs-state)
|
||
(progn
|
||
(vip-change-state-to-emacs)
|
||
(setq-default minor-mode-map-alist minor-mode-map-alist)
|
||
))
|
||
|
||
|
||
(run-hooks 'vip-load-hook) ; the last chance to change something
|
||
|
||
(provide 'viper)
|
||
(provide 'vip19)
|
||
(provide 'vip)
|
||
|
||
;;; viper.el ends here
|