mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-22 10:26:20 +00:00
560ef11a16
* ediff-init.el (ediff-has-face-support-p): make it paint faces on tty's. * ediff-diff.el (ediff-exec-process): use --binary for fine differences whenever apropriate. * viper-cmd.el (viper-smart-suffix-list): rearranged list members. * viper.el (find-file,find-file-other-window): get viper to do wildcards.
4890 lines
165 KiB
EmacsLisp
4890 lines
165 KiB
EmacsLisp
;;; viper-cmd.el --- Vi command support for Viper
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;; Copyright (C) 1997 Free Software Foundation, Inc.
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;; Code
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(provide 'viper-cmd)
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(require 'advice)
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;; Compiler pacifier
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(defvar viper-minibuffer-current-face)
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(defvar viper-minibuffer-insert-face)
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(defvar viper-minibuffer-vi-face)
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(defvar viper-minibuffer-emacs-face)
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(defvar viper-always)
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(defvar viper-mode-string)
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(defvar viper-custom-file-name)
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(defvar iso-accents-mode)
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(defvar quail-mode)
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(defvar quail-current-str)
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(defvar zmacs-region-stays)
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(defvar mark-even-if-inactive)
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;; loading happens only in non-interactive compilation
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;; in order to spare non-viperized emacs from being viperized
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(if noninteractive
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(eval-when-compile
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(let ((load-path (cons (expand-file-name ".") load-path)))
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(or (featurep 'viper-util)
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(load "viper-util.el" nil nil 'nosuffix))
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(or (featurep 'viper-keym)
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(load "viper-keym.el" nil nil 'nosuffix))
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(or (featurep 'viper-mous)
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(load "viper-mous.el" nil nil 'nosuffix))
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(or (featurep 'viper-macs)
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(load "viper-macs.el" nil nil 'nosuffix))
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(or (featurep 'viper-ex)
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(load "viper-ex.el" nil nil 'nosuffix))
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)))
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;; end pacifier
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(require 'viper-util)
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(require 'viper-keym)
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(require 'viper-mous)
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(require 'viper-macs)
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(require 'viper-ex)
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;; Generic predicates
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;; These test functions are shamelessly lifted from vip 4.4.2 by Aamod Sane
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;; generate test functions
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;; given symbol foo, foo-p is the test function, foos is the set of
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;; Viper command keys
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;; (macroexpand '(viper-test-com-defun foo))
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;; (defun foo-p (com) (consp (memq (if (< com 0) (- com) com) foos)))
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(defmacro viper-test-com-defun (name)
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(let* ((snm (symbol-name name))
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(nm-p (intern (concat snm "-p")))
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(nms (intern (concat snm "s"))))
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`(defun ,nm-p (com)
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(consp (memq (if (and (viper-characterp com) (< com 0))
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(- com) com) ,nms)))))
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;; Variables for defining VI commands
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;; Modifying commands that can be prefixes to movement commands
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(defconst viper-prefix-commands '(?c ?d ?y ?! ?= ?# ?< ?> ?\"))
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;; define viper-prefix-command-p
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(viper-test-com-defun viper-prefix-command)
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;; Commands that are pairs eg. dd. r and R here are a hack
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(defconst viper-charpair-commands '(?c ?d ?y ?! ?= ?< ?> ?r ?R))
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;; define viper-charpair-command-p
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(viper-test-com-defun viper-charpair-command)
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(defconst viper-movement-commands '(?b ?B ?e ?E ?f ?F ?G ?h ?H ?j ?k ?l
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?H ?M ?L ?n ?t ?T ?w ?W ?$ ?%
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?^ ?( ?) ?- ?+ ?| ?{ ?} ?[ ?] ?' ?`
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?\; ?, ?0 ?? ?/ ?\ ?\C-m
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space return
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delete backspace
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)
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"Movement commands")
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;; define viper-movement-command-p
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(viper-test-com-defun viper-movement-command)
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;; Vi digit commands
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(defconst viper-digit-commands '(?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9))
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;; define viper-digit-command-p
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(viper-test-com-defun viper-digit-command)
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;; Commands that can be repeated by . (dotted)
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(defconst viper-dotable-commands '(?c ?d ?C ?s ?S ?D ?> ?<))
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;; define viper-dotable-command-p
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(viper-test-com-defun viper-dotable-command)
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;; Commands that can follow a #
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(defconst viper-hash-commands '(?c ?C ?g ?q ?s))
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;; define viper-hash-command-p
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(viper-test-com-defun viper-hash-command)
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;; Commands that may have registers as prefix
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(defconst viper-regsuffix-commands '(?d ?y ?Y ?D ?p ?P ?x ?X))
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;; define viper-regsuffix-command-p
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(viper-test-com-defun viper-regsuffix-command)
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(defconst viper-vi-commands (append viper-movement-commands
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viper-digit-commands
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viper-dotable-commands
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viper-charpair-commands
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viper-hash-commands
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viper-prefix-commands
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viper-regsuffix-commands)
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"The list of all commands in Vi-state.")
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;; define viper-vi-command-p
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(viper-test-com-defun viper-vi-command)
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;; Where viper saves mark. This mark is resurrected by m^
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(defvar viper-saved-mark nil)
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;;; CODE
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;; sentinels
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;; Runs viper-after-change-functions inside after-change-functions
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(defun viper-after-change-sentinel (beg end len)
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(run-hook-with-args 'viper-after-change-functions beg end len))
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;; Runs viper-before-change-functions inside before-change-functions
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(defun viper-before-change-sentinel (beg end)
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(run-hook-with-args 'viper-before-change-functions beg end))
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(defsubst viper-post-command-sentinel ()
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(run-hooks 'viper-post-command-hooks)
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(if (eq viper-current-state 'vi-state)
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(viper-restore-cursor-color 'after-insert-mode)))
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(defsubst viper-pre-command-sentinel ()
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(run-hooks 'viper-pre-command-hooks))
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;; Needed so that Viper will be able to figure the last inserted
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;; chunk of text with reasonable accuracy.
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(defsubst viper-insert-state-post-command-sentinel ()
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(if (and (memq viper-current-state '(insert-state replace-state))
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viper-insert-point
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(>= (point) viper-insert-point))
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(setq viper-last-posn-while-in-insert-state (point-marker)))
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(or (viper-overlay-p viper-replace-overlay)
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(progn
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(viper-set-replace-overlay (point-min) (point-min))
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(viper-hide-replace-overlay)))
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(if (eq viper-current-state 'insert-state)
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(let ((has-saved-cursor-color-in-insert-mode
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(stringp (viper-get-saved-cursor-color-in-insert-mode))))
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(or has-saved-cursor-color-in-insert-mode
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(string= (viper-get-cursor-color) viper-insert-state-cursor-color)
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;; save current color, if not already saved
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(viper-save-cursor-color 'before-insert-mode))
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;; set insert mode cursor color
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(viper-change-cursor-color viper-insert-state-cursor-color)))
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(if (and (memq this-command '(dabbrev-expand hippie-expand))
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(integerp viper-pre-command-point)
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(markerp viper-insert-point)
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(marker-position viper-insert-point)
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(> viper-insert-point viper-pre-command-point))
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(viper-move-marker-locally viper-insert-point viper-pre-command-point))
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)
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(defsubst viper-insert-state-pre-command-sentinel ()
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(or (memq this-command '(self-insert-command))
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(memq (viper-event-key last-command-event)
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'(up down left right (meta f) (meta b)
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(control n) (control p) (control f) (control b)))
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(viper-restore-cursor-color 'after-insert-mode))
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(if (and (memq this-command '(dabbrev-expand hippie-expand))
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(markerp viper-insert-point)
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(marker-position viper-insert-point))
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(setq viper-pre-command-point (marker-position viper-insert-point))))
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(defsubst viper-R-state-post-command-sentinel ()
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;; Restoring cursor color is needed despite
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;; viper-replace-state-pre-command-sentinel: When you jump to another buffer
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;; in another frame, the pre-command hook won't change cursor color to
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;; default in that other frame. So, if the second frame cursor was red and
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;; we set the point outside the replacement region, then the cursor color
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;; will remain red. Restoring the default, below, prevents this.
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(if (and (<= (viper-replace-start) (point))
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(<= (point) (viper-replace-end)))
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(viper-change-cursor-color viper-replace-overlay-cursor-color)
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(viper-restore-cursor-color 'after-replace-mode)
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))
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;; to speed up, don't change cursor color before self-insert
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;; and common move commands
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(defsubst viper-replace-state-pre-command-sentinel ()
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(or (memq this-command '(self-insert-command))
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(memq (viper-event-key last-command-event)
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'(up down left right (meta f) (meta b)
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(control n) (control p) (control f) (control b)))
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(viper-restore-cursor-color 'after-replace-mode)))
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;; Make sure we don't delete more than needed.
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;; This is executed at viper-last-posn-in-replace-region
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(defsubst viper-trim-replace-chars-to-delete-if-necessary ()
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(setq viper-replace-chars-to-delete
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(max 0
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(min viper-replace-chars-to-delete
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;; Don't delete more than to the end of repl overlay
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(viper-chars-in-region
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(viper-replace-end) viper-last-posn-in-replace-region)
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;; point is viper-last-posn-in-replace-region now
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;; So, this limits deletion to the end of line
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(viper-chars-in-region (point) (viper-line-pos 'end))
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))))
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(defun viper-replace-state-post-command-sentinel ()
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;; Restoring cursor color is needed despite
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;; viper-replace-state-pre-command-sentinel: When one jumps to another buffer
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;; in another frame, the pre-command hook won't change cursor color to
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;; default in that other frame. So, if the second frame cursor was red and
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;; we set the point outside the replacement region, then the cursor color
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;; will remain red. Restoring the default, below, fixes this problem.
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;;
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;; We optimize for self-insert-command's here, since they either don't change
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;; cursor color or, if they terminate replace mode, the color will be changed
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;; in viper-finish-change
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(or (memq this-command '(self-insert-command))
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(viper-restore-cursor-color 'after-replace-mode))
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(cond
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((eq viper-current-state 'replace-state)
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;; delete characters to compensate for inserted chars.
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(let ((replace-boundary (viper-replace-end)))
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(save-excursion
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(goto-char viper-last-posn-in-replace-region)
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(viper-trim-replace-chars-to-delete-if-necessary)
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(delete-char viper-replace-chars-to-delete)
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(setq viper-replace-chars-to-delete 0)
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;; terminate replace mode if reached replace limit
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(if (= viper-last-posn-in-replace-region (viper-replace-end))
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(viper-finish-change)))
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(if (viper-pos-within-region
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(point) (viper-replace-start) replace-boundary)
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(progn
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;; the state may have changed in viper-finish-change above
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(if (eq viper-current-state 'replace-state)
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(viper-change-cursor-color viper-replace-overlay-cursor-color))
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(setq viper-last-posn-in-replace-region (point-marker))))
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))
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;; terminate replace mode if changed Viper states.
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(t (viper-finish-change))))
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;; changing mode
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;; Change state to NEW-STATE---either emacs-state, vi-state, or insert-state.
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(defun viper-change-state (new-state)
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;; Keep viper-post/pre-command-hooks fresh.
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;; We remove then add viper-post/pre-command-sentinel since it is very
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;; desirable that viper-pre-command-sentinel is the last hook and
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;; viper-post-command-sentinel is the first hook.
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(make-local-hook 'viper-after-change-functions)
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(make-local-hook 'viper-before-change-functions)
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(make-local-hook 'viper-post-command-hooks)
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(make-local-hook 'viper-pre-command-hooks)
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(remove-hook 'post-command-hook 'viper-post-command-sentinel)
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(add-hook 'post-command-hook 'viper-post-command-sentinel)
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(remove-hook 'pre-command-hook 'viper-pre-command-sentinel)
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(add-hook 'pre-command-hook 'viper-pre-command-sentinel t)
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;; These hooks will be added back if switching to insert/replace mode
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(remove-hook 'viper-post-command-hooks
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'viper-insert-state-post-command-sentinel 'local)
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(remove-hook 'viper-pre-command-hooks
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'viper-insert-state-pre-command-sentinel 'local)
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(setq viper-intermediate-command nil)
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(cond ((eq new-state 'vi-state)
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(cond ((member viper-current-state '(insert-state replace-state))
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;; move viper-last-posn-while-in-insert-state
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;; This is a normal hook that is executed in insert/replace
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;; states after each command. In Vi/Emacs state, it does
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;; nothing. We need to execute it here to make sure that
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;; the last posn was recorded when we hit ESC.
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;; It may be left unrecorded if the last thing done in
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;; insert/repl state was dabbrev-expansion or abbrev
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;; expansion caused by hitting ESC
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(viper-insert-state-post-command-sentinel)
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(condition-case conds
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(progn
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(viper-save-last-insertion
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viper-insert-point
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viper-last-posn-while-in-insert-state)
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(if viper-began-as-replace
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(setq viper-began-as-replace nil)
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;; repeat insert commands if numerical arg > 1
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(save-excursion
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(viper-repeat-insert-command))))
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(error
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(viper-message-conditions conds)))
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(if (> (length viper-last-insertion) 0)
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(viper-push-onto-ring viper-last-insertion
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'viper-insertion-ring))
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(if viper-ESC-moves-cursor-back
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(or (bolp) (backward-char 1))))
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))
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;; insert or replace
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((memq new-state '(insert-state replace-state))
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(if (memq viper-current-state '(emacs-state vi-state))
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(viper-move-marker-locally 'viper-insert-point (point)))
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(viper-move-marker-locally
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'viper-last-posn-while-in-insert-state (point))
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(add-hook 'viper-post-command-hooks
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'viper-insert-state-post-command-sentinel t 'local)
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(add-hook 'viper-pre-command-hooks
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'viper-insert-state-pre-command-sentinel t 'local))
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) ; outermost cond
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;; Nothing needs to be done to switch to emacs mode! Just set some
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;; variables, which is already done in viper-change-state-to-emacs!
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;; ISO accents
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;; always turn off iso-accents-mode in vi-state, or else we won't be able to
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;; use the keys `,',^ , as they will do accents instead of Vi actions.
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(cond ((eq new-state 'vi-state) (viper-set-iso-accents-mode nil));accents off
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(viper-automatic-iso-accents (viper-set-iso-accents-mode t));accents on
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(t (viper-set-iso-accents-mode nil)))
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;; Always turn off quail mode in vi state
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(cond ((eq new-state 'vi-state) (viper-set-input-method nil)) ;intl input off
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(viper-special-input-method (viper-set-input-method t)) ;intl input on
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(t (viper-set-input-method nil)))
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(setq viper-current-state new-state)
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(viper-update-syntax-classes)
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(viper-normalize-minor-mode-map-alist)
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(viper-adjust-keys-for new-state)
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(viper-set-mode-vars-for new-state)
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(viper-refresh-mode-line)
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)
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(defun viper-adjust-keys-for (state)
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"Make necessary adjustments to keymaps before entering STATE."
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(cond ((memq state '(insert-state replace-state))
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(if viper-auto-indent
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(progn
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(define-key viper-insert-basic-map "\C-m" 'viper-autoindent)
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(if viper-want-emacs-keys-in-insert
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;; expert
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(define-key viper-insert-basic-map "\C-j" nil)
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;; novice
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(define-key viper-insert-basic-map "\C-j" 'viper-autoindent)))
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(define-key viper-insert-basic-map "\C-m" nil)
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(define-key viper-insert-basic-map "\C-j" nil))
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(setq viper-insert-diehard-minor-mode
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(not viper-want-emacs-keys-in-insert))
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(if viper-want-ctl-h-help
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(progn
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(define-key viper-insert-basic-map "\C-h" 'help-command)
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(define-key viper-replace-map "\C-h" 'help-command))
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(define-key viper-insert-basic-map
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"\C-h" 'viper-del-backward-char-in-insert)
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(define-key viper-replace-map
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"\C-h" 'viper-del-backward-char-in-replace))
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;; In XEmacs, C-h overrides backspace, so we make sure it doesn't.
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(define-key viper-insert-basic-map
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[backspace] 'viper-del-backward-char-in-insert)
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(define-key viper-replace-map
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[backspace] 'viper-del-backward-char-in-replace)
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) ; end insert/replace case
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(t ; Vi state
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(setq viper-vi-diehard-minor-mode (not viper-want-emacs-keys-in-vi))
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(if viper-want-ctl-h-help
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(define-key viper-vi-basic-map "\C-h" 'help-command)
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(define-key viper-vi-basic-map "\C-h" 'viper-backward-char))
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;; In XEmacs, C-h overrides backspace, so we make sure it doesn't.
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(define-key viper-vi-basic-map [backspace] 'viper-backward-char))
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))
|
||
|
||
|
||
;; 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 viper-normalize-minor-mode-map-alist ()
|
||
(setq minor-mode-map-alist
|
||
(viper-append-filter-alist
|
||
(list (cons 'viper-vi-intercept-minor-mode viper-vi-intercept-map)
|
||
(cons 'viper-vi-minibuffer-minor-mode viper-minibuffer-map)
|
||
(cons 'viper-vi-local-user-minor-mode viper-vi-local-user-map)
|
||
(cons 'viper-vi-kbd-minor-mode viper-vi-kbd-map)
|
||
(cons 'viper-vi-global-user-minor-mode viper-vi-global-user-map)
|
||
(cons 'viper-vi-state-modifier-minor-mode
|
||
(if (keymapp
|
||
(cdr (assoc major-mode
|
||
viper-vi-state-modifier-alist)))
|
||
(cdr (assoc major-mode viper-vi-state-modifier-alist))
|
||
viper-empty-keymap))
|
||
(cons 'viper-vi-diehard-minor-mode viper-vi-diehard-map)
|
||
(cons 'viper-vi-basic-minor-mode viper-vi-basic-map)
|
||
(cons 'viper-insert-intercept-minor-mode
|
||
viper-insert-intercept-map)
|
||
(cons 'viper-replace-minor-mode viper-replace-map)
|
||
;; viper-insert-minibuffer-minor-mode must come after
|
||
;; viper-replace-minor-mode
|
||
(cons 'viper-insert-minibuffer-minor-mode
|
||
viper-minibuffer-map)
|
||
(cons 'viper-insert-local-user-minor-mode
|
||
viper-insert-local-user-map)
|
||
(cons 'viper-insert-kbd-minor-mode viper-insert-kbd-map)
|
||
(cons 'viper-insert-global-user-minor-mode
|
||
viper-insert-global-user-map)
|
||
(cons 'viper-insert-state-modifier-minor-mode
|
||
(if (keymapp
|
||
(cdr (assoc major-mode
|
||
viper-insert-state-modifier-alist)))
|
||
(cdr (assoc major-mode
|
||
viper-insert-state-modifier-alist))
|
||
viper-empty-keymap))
|
||
(cons 'viper-insert-diehard-minor-mode viper-insert-diehard-map)
|
||
(cons 'viper-insert-basic-minor-mode viper-insert-basic-map)
|
||
(cons 'viper-emacs-intercept-minor-mode
|
||
viper-emacs-intercept-map)
|
||
(cons 'viper-emacs-local-user-minor-mode
|
||
viper-emacs-local-user-map)
|
||
(cons 'viper-emacs-kbd-minor-mode viper-emacs-kbd-map)
|
||
(cons 'viper-emacs-global-user-minor-mode
|
||
viper-emacs-global-user-map)
|
||
(cons 'viper-emacs-state-modifier-minor-mode
|
||
(if (keymapp
|
||
(cdr
|
||
(assoc major-mode viper-emacs-state-modifier-alist)))
|
||
(cdr
|
||
(assoc major-mode viper-emacs-state-modifier-alist))
|
||
viper-empty-keymap))
|
||
)
|
||
minor-mode-map-alist)))
|
||
|
||
|
||
|
||
;; Viper mode-changing commands and utilities
|
||
|
||
;; Modifies mode-line-buffer-identification.
|
||
(defun viper-refresh-mode-line ()
|
||
(setq viper-mode-string
|
||
(cond ((eq viper-current-state 'emacs-state) viper-emacs-state-id)
|
||
((eq viper-current-state 'vi-state) viper-vi-state-id)
|
||
((eq viper-current-state 'replace-state) viper-replace-state-id)
|
||
((eq viper-current-state 'insert-state) viper-insert-state-id)))
|
||
|
||
;; Sets Viper mode string in global-mode-string
|
||
(force-mode-line-update))
|
||
|
||
|
||
;; Switch from Insert state to Vi state.
|
||
(defun viper-exit-insert-state ()
|
||
(interactive)
|
||
(viper-change-state-to-vi))
|
||
|
||
(defun viper-set-mode-vars-for (state)
|
||
"Sets Viper minor mode variables to put Viper's state STATE in effect."
|
||
|
||
;; Emacs state
|
||
(setq viper-vi-minibuffer-minor-mode nil
|
||
viper-insert-minibuffer-minor-mode nil
|
||
viper-vi-intercept-minor-mode nil
|
||
viper-insert-intercept-minor-mode nil
|
||
|
||
viper-vi-local-user-minor-mode nil
|
||
viper-vi-kbd-minor-mode nil
|
||
viper-vi-global-user-minor-mode nil
|
||
viper-vi-state-modifier-minor-mode nil
|
||
viper-vi-diehard-minor-mode nil
|
||
viper-vi-basic-minor-mode nil
|
||
|
||
viper-replace-minor-mode nil
|
||
|
||
viper-insert-local-user-minor-mode nil
|
||
viper-insert-kbd-minor-mode nil
|
||
viper-insert-global-user-minor-mode nil
|
||
viper-insert-state-modifier-minor-mode nil
|
||
viper-insert-diehard-minor-mode nil
|
||
viper-insert-basic-minor-mode nil
|
||
viper-emacs-intercept-minor-mode t
|
||
viper-emacs-local-user-minor-mode t
|
||
viper-emacs-kbd-minor-mode (not (viper-is-in-minibuffer))
|
||
viper-emacs-global-user-minor-mode t
|
||
viper-emacs-state-modifier-minor-mode t
|
||
)
|
||
|
||
;; Vi state
|
||
(if (eq state 'vi-state) ; adjust for vi-state
|
||
(setq
|
||
viper-vi-intercept-minor-mode t
|
||
viper-vi-minibuffer-minor-mode (viper-is-in-minibuffer)
|
||
viper-vi-local-user-minor-mode t
|
||
viper-vi-kbd-minor-mode (not (viper-is-in-minibuffer))
|
||
viper-vi-global-user-minor-mode t
|
||
viper-vi-state-modifier-minor-mode t
|
||
;; don't let the diehard keymap block command completion
|
||
;; and other things in the minibuffer
|
||
viper-vi-diehard-minor-mode (not
|
||
(or viper-want-emacs-keys-in-vi
|
||
(viper-is-in-minibuffer)))
|
||
viper-vi-basic-minor-mode t
|
||
viper-emacs-intercept-minor-mode nil
|
||
viper-emacs-local-user-minor-mode nil
|
||
viper-emacs-kbd-minor-mode nil
|
||
viper-emacs-global-user-minor-mode nil
|
||
viper-emacs-state-modifier-minor-mode nil
|
||
))
|
||
|
||
;; Insert and Replace states
|
||
(if (member state '(insert-state replace-state))
|
||
(setq
|
||
viper-insert-intercept-minor-mode t
|
||
viper-replace-minor-mode (eq state 'replace-state)
|
||
viper-insert-minibuffer-minor-mode (viper-is-in-minibuffer)
|
||
viper-insert-local-user-minor-mode t
|
||
viper-insert-kbd-minor-mode (not (viper-is-in-minibuffer))
|
||
viper-insert-global-user-minor-mode t
|
||
viper-insert-state-modifier-minor-mode t
|
||
;; don't let the diehard keymap block command completion
|
||
;; and other things in the minibuffer
|
||
viper-insert-diehard-minor-mode (not
|
||
(or
|
||
viper-want-emacs-keys-in-insert
|
||
(viper-is-in-minibuffer)))
|
||
viper-insert-basic-minor-mode t
|
||
viper-emacs-intercept-minor-mode nil
|
||
viper-emacs-local-user-minor-mode nil
|
||
viper-emacs-kbd-minor-mode nil
|
||
viper-emacs-global-user-minor-mode nil
|
||
viper-emacs-state-modifier-minor-mode nil
|
||
))
|
||
|
||
;; minibuffer faces
|
||
(if (viper-has-face-support-p)
|
||
(setq viper-minibuffer-current-face
|
||
(cond ((eq state 'emacs-state) viper-minibuffer-emacs-face)
|
||
((eq state 'vi-state) viper-minibuffer-vi-face)
|
||
((memq state '(insert-state replace-state))
|
||
viper-minibuffer-insert-face))))
|
||
|
||
(if (viper-is-in-minibuffer)
|
||
(viper-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 viper-change-state-to-vi ()
|
||
"Change Viper state to Vi."
|
||
(interactive)
|
||
(if (and viper-first-time (not (viper-is-in-minibuffer)))
|
||
(viper-mode)
|
||
(if overwrite-mode (overwrite-mode nil))
|
||
(or (viper-overlay-p viper-replace-overlay)
|
||
(viper-set-replace-overlay (point-min) (point-min)))
|
||
(viper-hide-replace-overlay)
|
||
(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
|
||
'(viper-autoindent
|
||
viper-open-line viper-Open-line
|
||
viper-replace-state-exit-cmd))
|
||
(viper-over-whitespace-line))
|
||
(indent-to-left-margin))
|
||
(viper-add-newline-at-eob-if-necessary)
|
||
(viper-adjust-undo)
|
||
(viper-change-state 'vi-state)
|
||
|
||
(viper-restore-cursor-color 'after-insert-mode)
|
||
|
||
;; Protect against user errors in hooks
|
||
(condition-case conds
|
||
(run-hooks 'viper-vi-state-hook)
|
||
(error
|
||
(viper-message-conditions conds)))))
|
||
|
||
(defun viper-change-state-to-insert ()
|
||
"Change Viper state to Insert."
|
||
(interactive)
|
||
(viper-change-state 'insert-state)
|
||
|
||
(or (viper-overlay-p viper-replace-overlay)
|
||
(viper-set-replace-overlay (point-min) (point-min)))
|
||
(viper-hide-replace-overlay)
|
||
|
||
(let ((has-saved-cursor-color-in-insert-mode
|
||
(stringp (viper-get-saved-cursor-color-in-insert-mode))))
|
||
(or has-saved-cursor-color-in-insert-mode
|
||
(string= (viper-get-cursor-color) viper-insert-state-cursor-color)
|
||
(viper-save-cursor-color 'before-insert-mode))
|
||
(viper-change-cursor-color viper-insert-state-cursor-color))
|
||
|
||
;; Protect against user errors in hooks
|
||
(condition-case conds
|
||
(run-hooks 'viper-insert-state-hook)
|
||
(error
|
||
(viper-message-conditions conds))))
|
||
|
||
(defsubst viper-downgrade-to-insert ()
|
||
(setq viper-current-state 'insert-state
|
||
viper-replace-minor-mode nil))
|
||
|
||
|
||
|
||
;; Change to replace state. When the end of replacement region is reached,
|
||
;; replace state changes to insert state.
|
||
(defun viper-change-state-to-replace (&optional non-R-cmd)
|
||
(viper-change-state 'replace-state)
|
||
;; Run insert-state-hook
|
||
(condition-case conds
|
||
(run-hooks 'viper-insert-state-hook 'viper-replace-state-hook)
|
||
(error
|
||
(viper-message-conditions conds)))
|
||
|
||
(if non-R-cmd
|
||
(viper-start-replace)
|
||
;; 'R' is implemented using Emacs's overwrite-mode
|
||
(viper-start-R-mode))
|
||
)
|
||
|
||
|
||
(defun viper-change-state-to-emacs ()
|
||
"Change Viper state to Emacs."
|
||
(interactive)
|
||
(or (viper-overlay-p viper-replace-overlay)
|
||
(viper-set-replace-overlay (point-min) (point-min)))
|
||
(viper-hide-replace-overlay)
|
||
(viper-change-state 'emacs-state)
|
||
|
||
;; Protect agains user errors in hooks
|
||
(condition-case conds
|
||
(run-hooks 'viper-emacs-state-hook)
|
||
(error
|
||
(viper-message-conditions conds))))
|
||
|
||
;; escape to emacs mode termporarily
|
||
(defun viper-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")
|
||
(if (= last-command-char ?\\)
|
||
(message "Switched to EMACS state for the next command..."))
|
||
(viper-escape-to-state arg events 'emacs-state))
|
||
|
||
;; escape to Vi mode termporarily
|
||
(defun viper-escape-to-vi (arg)
|
||
"Escape from Emacs state to Vi state for one Vi 1-character command.
|
||
If the Vi command that the user types has a prefix argument, e.g., `d2w', then
|
||
Vi's prefix argument will be used. Otherwise, the prefix argument passed to
|
||
`viper-escape-to-vi' is used."
|
||
(interactive "P")
|
||
(message "Switched to VI state for the next command...")
|
||
(viper-escape-to-state arg nil 'vi-state))
|
||
|
||
;; Escape to STATE mode for one Emacs command.
|
||
(defun viper-escape-to-state (arg events state)
|
||
;;(let (com key prefix-arg)
|
||
(let (com key)
|
||
;; this temporarily turns off Viper's minor mode keymaps
|
||
(viper-set-mode-vars-for state)
|
||
(viper-normalize-minor-mode-map-alist)
|
||
(if events (viper-set-unread-command-events events))
|
||
|
||
;; protect against keyboard quit and other errors
|
||
(condition-case nil
|
||
(let (viper-vi-kbd-minor-mode
|
||
viper-insert-kbd-minor-mode
|
||
viper-emacs-kbd-minor-mode)
|
||
(unwind-protect
|
||
(progn
|
||
(setq com (key-binding (setq key
|
||
(if viper-xemacs-p
|
||
(read-key-sequence nil)
|
||
(read-key-sequence nil t)))))
|
||
;; In case of binding 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)
|
||
;; Execute command com in the original Viper state, not in state
|
||
;; `state'. Otherwise, if we switch buffers while executing the
|
||
;; escaped to command, Viper's mode vars will remain those of
|
||
;; `state'. When we return to the orig buffer, the bindings will be
|
||
;; screwed up.
|
||
(viper-set-mode-vars-for viper-current-state)
|
||
|
||
;; this-command, last-command-char, last-command-event
|
||
(setq this-command com)
|
||
(if viper-xemacs-p ; XEmacs represents key sequences as vectors
|
||
(setq last-command-event
|
||
(viper-copy-event (viper-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
|
||
(viper-copy-event (viper-seq-last-elt key))
|
||
last-command-char last-command-event))
|
||
|
||
(if (commandp com)
|
||
(progn
|
||
(setq prefix-arg (or prefix-arg arg))
|
||
(command-execute com)))
|
||
)
|
||
(quit (ding))
|
||
(error (beep 1))))
|
||
;; set state in the new buffer
|
||
(viper-set-mode-vars-for viper-current-state))
|
||
|
||
(defun viper-exec-form-in-vi (form)
|
||
"Execute FORM in Vi state, regardless of the Ccurrent Vi state."
|
||
(let ((buff (current-buffer))
|
||
result)
|
||
(viper-set-mode-vars-for 'vi-state)
|
||
|
||
(condition-case nil
|
||
(let (viper-vi-kbd-minor-mode) ; execute without kbd macros
|
||
(setq result (eval form))
|
||
)
|
||
(error
|
||
(signal 'quit nil)))
|
||
|
||
(if (not (equal buff (current-buffer))) ; cmd switched buffer
|
||
(save-excursion
|
||
(set-buffer buff)
|
||
(viper-set-mode-vars-for viper-current-state)))
|
||
(viper-set-mode-vars-for viper-current-state)
|
||
result))
|
||
|
||
(defun viper-exec-form-in-emacs (form)
|
||
"Execute FORM in Emacs, temporarily disabling Viper's minor modes.
|
||
Similar to viper-escape-to-emacs, but accepts forms rather than keystrokes."
|
||
(let ((buff (current-buffer))
|
||
result)
|
||
(viper-set-mode-vars-for 'emacs-state)
|
||
(setq result (eval form))
|
||
(if (not (equal buff (current-buffer))) ; cmd switched buffer
|
||
(save-excursion
|
||
(set-buffer buff)
|
||
(viper-set-mode-vars-for viper-current-state)))
|
||
(viper-set-mode-vars-for viper-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 viper-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:
|
||
(viper-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: ")
|
||
|
||
(eval-after-load load-file '(viper-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.
|
||
(eval-after-load
|
||
load-file '(setq-default minor-mode-map-alist minor-mode-map-alist))
|
||
)
|
||
|
||
|
||
(defun viper-ESC (arg)
|
||
"Emulate ESC key in Emacs.
|
||
Prevents multiple escape keystrokes if viper-no-multiple-ESC is true.
|
||
If viper-no-multiple-ESC is 'twice double ESC would ding in vi-state.
|
||
Other ESC sequences are emulated via the current Emacs's major mode
|
||
keymap. This is more convenient on TTYs, since this won't block
|
||
function keys such as up,down, etc. ESC will also will also work as
|
||
a Meta key in this case. When viper-no-multiple-ESC is nil, ESC functions
|
||
as a Meta key and any number of multiple escapes is allowed."
|
||
(interactive "P")
|
||
(let (char)
|
||
(cond ((and (not viper-no-multiple-ESC) (eq viper-current-state 'vi-state))
|
||
(setq char (viper-read-char-exclusive))
|
||
(viper-escape-to-emacs arg (list ?\e char) ))
|
||
((and (eq viper-no-multiple-ESC 'twice)
|
||
(eq viper-current-state 'vi-state))
|
||
(setq char (viper-read-char-exclusive))
|
||
(if (= char (string-to-char viper-ESC-key))
|
||
(ding)
|
||
(viper-escape-to-emacs arg (list ?\e char) )))
|
||
(t (ding)))
|
||
))
|
||
|
||
(defun viper-alternate-Meta-key (arg)
|
||
"Simulate Emacs Meta key."
|
||
(interactive "P")
|
||
(sit-for 1) (message "ESC-")
|
||
(viper-escape-to-emacs arg '(?\e)))
|
||
|
||
(defun viper-toggle-key-action ()
|
||
"Action bound to `viper-toggle-key'."
|
||
(interactive)
|
||
(if (and (< viper-expert-level 2) (equal viper-toggle-key "\C-z"))
|
||
(if (viper-window-display-p)
|
||
(viper-iconify)
|
||
(suspend-emacs))
|
||
(viper-change-state-to-emacs)))
|
||
|
||
|
||
;; 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 viper-envelop-ESC-key ()
|
||
(let ((event last-input-event)
|
||
(keyseq [nil])
|
||
inhibit-quit)
|
||
(if (viper-ESC-event-p event)
|
||
(progn
|
||
(if (viper-fast-keysequence-p)
|
||
(progn
|
||
(let (minor-mode-map-alist)
|
||
(viper-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, viper-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 ((and (viper-ESC-event-p first-key)
|
||
(not viper-translate-all-ESC-keysequences))
|
||
;; put keys following ESC on the unread list
|
||
;; and return ESC as the key-sequence
|
||
(viper-set-unread-command-events (subseq keyseq 1))
|
||
(setq last-input-event event
|
||
keyseq (if viper-emacs-p
|
||
"\e"
|
||
(vector (character-to-event ?\e)))))
|
||
((and viper-xemacs-p
|
||
(key-press-event-p first-key)
|
||
(equal '(meta) key-mod))
|
||
(viper-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
|
||
(viper-copy-event first-key)))
|
||
))
|
||
) ; end progn
|
||
|
||
;; this is escape event with nothing after it
|
||
;; put in unread-command-event and then re-read
|
||
(viper-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))
|
||
|
||
|
||
|
||
;; 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 viper-intercept-ESC-key ()
|
||
"Function that implements ESC key in Viper emulation of Vi."
|
||
(interactive)
|
||
(let ((cmd (or (key-binding (viper-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 'viper-intercept-ESC-key)
|
||
(setq cmd
|
||
(cond ((eq viper-current-state 'vi-state)
|
||
'viper-ESC)
|
||
((eq viper-current-state 'insert-state)
|
||
'viper-exit-insert-state)
|
||
((eq viper-current-state 'replace-state)
|
||
'viper-replace-state-exit-cmd)
|
||
(t 'viper-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 viper-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 viper-P-val (arg)
|
||
(cond ((consp arg) (car arg))
|
||
(t arg)))
|
||
|
||
;; Get com part of prefix-argument ARG.
|
||
(defsubst viper-getcom (arg)
|
||
(cond ((null arg) nil)
|
||
((consp arg) (cdr arg))
|
||
(t nil)))
|
||
|
||
;; Get com part of prefix-argument ARG and modify it.
|
||
(defun viper-getCom (arg)
|
||
(let ((com (viper-getcom arg)))
|
||
(cond ((equal com ?c) ?c)
|
||
;; Previously, ?c was being converted to ?C, but this prevented
|
||
;; multiline replace regions.
|
||
;;((equal com ?c) ?C)
|
||
((equal com ?d) ?D)
|
||
((equal com ?y) ?Y)
|
||
(t com))))
|
||
|
||
|
||
;; Compute numeric prefix arg value.
|
||
;; Invoked by EVENT. COM is the command part obtained so far.
|
||
(defun viper-prefix-arg-value (event-char com)
|
||
(let ((viper-intermediate-command 'viper-digit-argument)
|
||
value func)
|
||
;; read while number
|
||
(while (and (viper-characterp event-char)
|
||
(>= event-char ?0) (<= event-char ?9))
|
||
(setq value (+ (* (if (integerp value) value 0) 10) (- event-char ?0)))
|
||
(setq event-char (viper-read-event-convert-to-char)))
|
||
|
||
(setq prefix-arg value)
|
||
(if com (setq prefix-arg (cons prefix-arg com)))
|
||
(while (eq event-char ?U)
|
||
(viper-describe-arg prefix-arg)
|
||
(setq event-char (viper-read-event-convert-to-char)))
|
||
|
||
(if (or com (and (not (eq viper-current-state 'vi-state))
|
||
;; make sure it is a Vi command
|
||
(viper-characterp event-char)
|
||
(viper-vi-command-p event-char)
|
||
))
|
||
;; If appears to be one of the vi commands,
|
||
;; then execute it with funcall and clear prefix-arg in order to not
|
||
;; confuse subsequent commands
|
||
(progn
|
||
;; last-command-char is the char we want emacs to think was typed
|
||
;; last. If com is not nil, the viper-digit-argument command was
|
||
;; called from within viper-prefix-arg command, such as `d', `w',
|
||
;; etc., i.e., the user typed, say, d2. In this case, `com' would be
|
||
;; `d', `w', etc. If viper-digit-argument was invoked by
|
||
;; viper-escape-to-vi (which is indicated by the fact that the
|
||
;; current state is not vi-state), then `event-char' represents the
|
||
;; vi command to be executed (e.g., `d', `w', etc). Again,
|
||
;; last-command-char must make emacs believe that this is the command
|
||
;; we typed.
|
||
(cond ((eq event-char 'return) (setq event-char ?\C-m))
|
||
((eq event-char 'delete) (setq event-char ?\C-?))
|
||
((eq event-char 'backspace) (setq event-char ?\C-h))
|
||
((eq event-char 'space) (setq event-char ?\ )))
|
||
(setq last-command-char (or com event-char))
|
||
(setq func (viper-exec-form-in-vi
|
||
`(key-binding (char-to-string ,event-char))))
|
||
(funcall func prefix-arg)
|
||
(setq prefix-arg nil))
|
||
;; some other command -- let emacs do it in its own way
|
||
(viper-set-unread-command-events event-char))
|
||
))
|
||
|
||
|
||
;; Vi operator as prefix argument."
|
||
(defun viper-prefix-arg-com (char value com)
|
||
(let ((cont t)
|
||
cmd-info
|
||
cmd-to-exec-at-end)
|
||
(while (and cont
|
||
(memq char
|
||
(list ?c ?d ?y ?! ?< ?> ?= ?# ?r ?R ?\"
|
||
viper-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 viper-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 (viper-valid-register reg)
|
||
(setq viper-use-register reg)
|
||
(error ""))
|
||
(setq char (read-char))))
|
||
(t
|
||
(setq com char)
|
||
(setq char (read-char))))))
|
||
|
||
(if (atom com)
|
||
;; `com' is a single char, so we construct the command argument
|
||
;; and if `char' is `?', we describe the arg; otherwise
|
||
;; we prepare the command that will be executed at the end.
|
||
(progn
|
||
(setq cmd-info (cons value com))
|
||
(while (= char ?U)
|
||
(viper-describe-arg cmd-info)
|
||
(setq char (read-char)))
|
||
;; `char' is a movement cmd, a digit arg cmd, or a register cmd---so we
|
||
;; execute it at the very end
|
||
(or (viper-movement-command-p char)
|
||
(viper-digit-command-p char)
|
||
(viper-regsuffix-command-p char)
|
||
(= char ?!) ; bang command
|
||
(error ""))
|
||
(setq cmd-to-exec-at-end
|
||
(viper-exec-form-in-vi
|
||
`(key-binding (char-to-string ,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) (viper-region prefix-arg)
|
||
(viper-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
|
||
;; If we change ?C to ?c here, then cc will enter replacement mode
|
||
;; rather than deleting lines. However, it will affect 1 less line than
|
||
;; normal. We decided to not use replacement mode here and follow Vi,
|
||
;; since replacement mode on n full lines can be achieved with nC.
|
||
((equal com '(?c . ?c)) (viper-line (cons value ?C)))
|
||
((equal com '(?d . ?d)) (viper-line (cons value ?D)))
|
||
((equal com '(?d . ?y)) (viper-yank-defun))
|
||
((equal com '(?y . ?y)) (viper-line (cons value ?Y)))
|
||
((equal com '(?< . ?<)) (viper-line (cons value ?<)))
|
||
((equal com '(?> . ?>)) (viper-line (cons value ?>)))
|
||
((equal com '(?! . ?!)) (viper-line (cons value ?!)))
|
||
((equal com '(?= . ?=)) (viper-line (cons value ?=)))
|
||
(t (error "")))))
|
||
|
||
(if cmd-to-exec-at-end
|
||
(progn
|
||
(setq last-command-char char)
|
||
(setq last-command-event
|
||
(viper-copy-event
|
||
(if viper-xemacs-p (character-to-event char) char)))
|
||
(condition-case nil
|
||
(funcall cmd-to-exec-at-end cmd-info)
|
||
(error
|
||
(error "")))))
|
||
))
|
||
|
||
(defun viper-describe-arg (arg)
|
||
(let (val com)
|
||
(setq val (viper-P-val arg)
|
||
com (viper-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 viper-digit-argument (arg)
|
||
"Begin numeric argument for the next command."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(viper-prefix-arg-value
|
||
last-command-char (if (consp arg) (cdr arg) nil)))
|
||
|
||
(defun viper-command-argument (arg)
|
||
"Accept a motion command as an argument."
|
||
(interactive "P")
|
||
(let ((viper-intermediate-command 'viper-command-argument))
|
||
(condition-case nil
|
||
(viper-prefix-arg-com
|
||
last-command-char
|
||
(cond ((null arg) nil)
|
||
((consp arg) (car arg))
|
||
((integerp arg) arg)
|
||
(t (error viper-InvalidCommandArgument)))
|
||
(cond ((null arg) nil)
|
||
((consp arg) (cdr arg))
|
||
((integerp arg) nil)
|
||
(t (error viper-InvalidCommandArgument))))
|
||
(quit (setq viper-use-register nil)
|
||
(signal 'quit nil)))
|
||
(viper-deactivate-mark)))
|
||
|
||
|
||
;; repeat last destructive command
|
||
|
||
;; Append region to text in register REG.
|
||
;; START and END are buffer positions indicating what to append.
|
||
(defsubst viper-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 viper-repeat command.
|
||
(defun viper-save-last-insertion (beg end)
|
||
(condition-case nil
|
||
(setq viper-last-insertion (buffer-substring beg end))
|
||
(error
|
||
;; beg or end marker are somehow screwed up
|
||
(setq viper-last-insertion nil)))
|
||
(setq viper-last-insertion (buffer-substring beg end))
|
||
(or (< (length viper-d-com) 5)
|
||
(setcar (nthcdr 4 viper-d-com) viper-last-insertion))
|
||
(or (null viper-command-ring)
|
||
(ring-empty-p viper-command-ring)
|
||
(progn
|
||
(setcar (nthcdr 4 (viper-current-ring-item viper-command-ring))
|
||
viper-last-insertion)
|
||
;; del most recent elt, if identical to the second most-recent
|
||
(viper-cleanup-ring viper-command-ring)))
|
||
)
|
||
|
||
(defsubst viper-yank-last-insertion ()
|
||
"Inserts the text saved by the previous viper-save-last-insertion command."
|
||
(condition-case nil
|
||
(insert viper-last-insertion)
|
||
(error nil)))
|
||
|
||
|
||
;; define functions to be executed
|
||
|
||
;; invoked by the `C' command
|
||
(defun viper-exec-change (m-com com)
|
||
(or (and (markerp viper-com-point) (marker-position viper-com-point))
|
||
(set-marker viper-com-point (point) (current-buffer)))
|
||
;; handle C cmd at the eol and at eob.
|
||
(if (or (and (eolp) (= viper-com-point (point)))
|
||
(= viper-com-point (point-max)))
|
||
(progn
|
||
(insert " ")(backward-char 1)))
|
||
(if (= viper-com-point (point))
|
||
(viper-forward-char-carefully))
|
||
(set-mark viper-com-point)
|
||
(if (eq m-com 'viper-next-line-at-bol)
|
||
(viper-enlarge-region (mark t) (point)))
|
||
(if (< (point) (mark t))
|
||
(exchange-point-and-mark))
|
||
(if (eq (preceding-char) ?\n)
|
||
(viper-backward-char-carefully)) ; give back the newline
|
||
(if (= com ?c)
|
||
(viper-change (mark t) (point))
|
||
(viper-change-subr (mark t) (point))))
|
||
|
||
;; this is invoked by viper-substitute-line
|
||
(defun viper-exec-Change (m-com com)
|
||
(save-excursion
|
||
(set-mark viper-com-point)
|
||
(viper-enlarge-region (mark t) (point))
|
||
(if viper-use-register
|
||
(progn
|
||
(cond ((viper-valid-register viper-use-register '(letter digit))
|
||
(copy-to-register
|
||
viper-use-register (mark t) (point) nil))
|
||
((viper-valid-register viper-use-register '(Letter))
|
||
(viper-append-to-register
|
||
(downcase viper-use-register) (mark t) (point)))
|
||
(t (setq viper-use-register nil)
|
||
(error viper-InvalidRegister viper-use-register)))
|
||
(setq viper-use-register nil)))
|
||
(delete-region (mark t) (point)))
|
||
(open-line 1)
|
||
(if (= com ?C)
|
||
(viper-change-state-to-insert)
|
||
(viper-yank-last-insertion)))
|
||
|
||
(defun viper-exec-delete (m-com com)
|
||
(or (and (markerp viper-com-point) (marker-position viper-com-point))
|
||
(set-marker viper-com-point (point) (current-buffer)))
|
||
(let (chars-deleted)
|
||
(if viper-use-register
|
||
(progn
|
||
(cond ((viper-valid-register viper-use-register '(letter digit))
|
||
(copy-to-register
|
||
viper-use-register viper-com-point (point) nil))
|
||
((viper-valid-register viper-use-register '(Letter))
|
||
(viper-append-to-register
|
||
(downcase viper-use-register) viper-com-point (point)))
|
||
(t (setq viper-use-register nil)
|
||
(error viper-InvalidRegister viper-use-register)))
|
||
(setq viper-use-register nil)))
|
||
(setq last-command
|
||
(if (eq last-command 'd-command) 'kill-region nil))
|
||
(setq chars-deleted (abs (- (point) viper-com-point)))
|
||
(if (> chars-deleted viper-change-notification-threshold)
|
||
(message "Deleted %d characters" chars-deleted))
|
||
(kill-region viper-com-point (point))
|
||
(setq this-command 'd-command)
|
||
(if viper-ex-style-motion
|
||
(if (and (eolp) (not (bolp))) (backward-char 1)))))
|
||
|
||
(defun viper-exec-Delete (m-com com)
|
||
(save-excursion
|
||
(set-mark viper-com-point)
|
||
(viper-enlarge-region (mark t) (point))
|
||
(let (lines-deleted)
|
||
(if viper-use-register
|
||
(progn
|
||
(cond ((viper-valid-register viper-use-register '(letter digit))
|
||
(copy-to-register
|
||
viper-use-register (mark t) (point) nil))
|
||
((viper-valid-register viper-use-register '(Letter))
|
||
(viper-append-to-register
|
||
(downcase viper-use-register) (mark t) (point)))
|
||
(t (setq viper-use-register nil)
|
||
(error viper-InvalidRegister viper-use-register)))
|
||
(setq viper-use-register nil)))
|
||
(setq last-command
|
||
(if (eq last-command 'D-command) 'kill-region nil))
|
||
(setq lines-deleted (count-lines (point) viper-com-point))
|
||
(if (> lines-deleted viper-change-notification-threshold)
|
||
(message "Deleted %d lines" lines-deleted))
|
||
(kill-region (mark t) (point))
|
||
(if (eq m-com 'viper-line) (setq this-command 'D-command)))
|
||
(back-to-indentation)))
|
||
|
||
;; save region
|
||
(defun viper-exec-yank (m-com com)
|
||
(or (and (markerp viper-com-point) (marker-position viper-com-point))
|
||
(set-marker viper-com-point (point) (current-buffer)))
|
||
(let (chars-saved)
|
||
(if viper-use-register
|
||
(progn
|
||
(cond ((viper-valid-register viper-use-register '(letter digit))
|
||
(copy-to-register
|
||
viper-use-register viper-com-point (point) nil))
|
||
((viper-valid-register viper-use-register '(Letter))
|
||
(viper-append-to-register
|
||
(downcase viper-use-register) viper-com-point (point)))
|
||
(t (setq viper-use-register nil)
|
||
(error viper-InvalidRegister viper-use-register)))
|
||
(setq viper-use-register nil)))
|
||
(setq last-command nil)
|
||
(copy-region-as-kill viper-com-point (point))
|
||
(setq chars-saved (abs (- (point) viper-com-point)))
|
||
(if (> chars-saved viper-change-notification-threshold)
|
||
(message "Saved %d characters" chars-saved))
|
||
(goto-char viper-com-point)))
|
||
|
||
;; save lines
|
||
(defun viper-exec-Yank (m-com com)
|
||
(save-excursion
|
||
(set-mark viper-com-point)
|
||
(viper-enlarge-region (mark t) (point))
|
||
(let (lines-saved)
|
||
(if viper-use-register
|
||
(progn
|
||
(cond ((viper-valid-register viper-use-register '(letter digit))
|
||
(copy-to-register
|
||
viper-use-register (mark t) (point) nil))
|
||
((viper-valid-register viper-use-register '(Letter))
|
||
(viper-append-to-register
|
||
(downcase viper-use-register) (mark t) (point)))
|
||
(t (setq viper-use-register nil)
|
||
(error viper-InvalidRegister viper-use-register)))
|
||
(setq viper-use-register nil)))
|
||
(setq last-command nil)
|
||
(copy-region-as-kill (mark t) (point))
|
||
(setq lines-saved (count-lines (mark t) (point)))
|
||
(if (> lines-saved viper-change-notification-threshold)
|
||
(message "Saved %d lines" lines-saved))))
|
||
(viper-deactivate-mark)
|
||
(goto-char viper-com-point))
|
||
|
||
(defun viper-exec-bang (m-com com)
|
||
(save-excursion
|
||
(set-mark viper-com-point)
|
||
(viper-enlarge-region (mark t) (point))
|
||
(exchange-point-and-mark)
|
||
(shell-command-on-region
|
||
(mark t) (point)
|
||
(if (= com ?!)
|
||
(setq viper-last-shell-com
|
||
(viper-read-string-with-history
|
||
"!"
|
||
nil
|
||
'viper-shell-history
|
||
(car viper-shell-history)
|
||
))
|
||
viper-last-shell-com)
|
||
t)))
|
||
|
||
(defun viper-exec-equals (m-com com)
|
||
(save-excursion
|
||
(set-mark viper-com-point)
|
||
(viper-enlarge-region (mark t) (point))
|
||
(if (> (mark t) (point)) (exchange-point-and-mark))
|
||
(indent-region (mark t) (point) nil)))
|
||
|
||
(defun viper-exec-shift (m-com com)
|
||
(save-excursion
|
||
(set-mark viper-com-point)
|
||
(viper-enlarge-region (mark t) (point))
|
||
(if (> (mark t) (point)) (exchange-point-and-mark))
|
||
(indent-rigidly (mark t) (point)
|
||
(if (= com ?>)
|
||
viper-shift-width
|
||
(- viper-shift-width))))
|
||
;; return point to where it was before shift
|
||
(goto-char viper-com-point))
|
||
|
||
;; this is needed because some commands fake com by setting it to ?r, which
|
||
;; denotes repeated insert command.
|
||
(defsubst viper-exec-dummy (m-com com)
|
||
nil)
|
||
|
||
(defun viper-exec-buffer-search (m-com com)
|
||
(setq viper-s-string (buffer-substring (point) viper-com-point))
|
||
(setq viper-s-forward t)
|
||
(setq viper-search-history (cons viper-s-string viper-search-history))
|
||
(setq viper-intermediate-command 'viper-exec-buffer-search)
|
||
(viper-search viper-s-string viper-s-forward 1))
|
||
|
||
(defvar viper-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 viper-exec-array ?c 'viper-exec-change)
|
||
(aset viper-exec-array ?C 'viper-exec-Change)
|
||
(aset viper-exec-array ?d 'viper-exec-delete)
|
||
(aset viper-exec-array ?D 'viper-exec-Delete)
|
||
(aset viper-exec-array ?y 'viper-exec-yank)
|
||
(aset viper-exec-array ?Y 'viper-exec-Yank)
|
||
(aset viper-exec-array ?r 'viper-exec-dummy)
|
||
(aset viper-exec-array ?! 'viper-exec-bang)
|
||
(aset viper-exec-array ?< 'viper-exec-shift)
|
||
(aset viper-exec-array ?> 'viper-exec-shift)
|
||
(aset viper-exec-array ?= 'viper-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 viper-forward-word will
|
||
;; call viper-execute-com to execute viper-exec-change, which eventually will
|
||
;; call viper-change to invoke the replace mode on the region.
|
||
;;
|
||
;; The var viper-d-com is set to (M-COM VAL COM REG INSETED-TEXT COMMAND-KEYS)
|
||
;; via a call to viper-set-destructive-command, for later use by viper-repeat.
|
||
(defun viper-execute-com (m-com val com)
|
||
(let ((reg viper-use-register))
|
||
;; this is the special command `#'
|
||
(if (> com 128)
|
||
(viper-special-prefix-com (- com 128))
|
||
(let ((fn (aref viper-exec-array (if (< com 0) (- com) com))))
|
||
(if (null fn)
|
||
(error "%c: %s" com viper-InvalidViCommand)
|
||
(funcall fn m-com com))))
|
||
(if (viper-dotable-command-p com)
|
||
(viper-set-destructive-command
|
||
(list m-com val
|
||
(if (memq com (list ?c ?C ?!)) (- com) com)
|
||
reg nil nil)))
|
||
))
|
||
|
||
|
||
(defun viper-repeat (arg)
|
||
"Re-execute last destructive command.
|
||
Use the info in viper-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 viper-set-destructive-command not to update
|
||
;; viper-command-ring
|
||
(viper-intermediate-command 'viper-repeat))
|
||
(if (eq last-command 'viper-undo)
|
||
;; if the last command was viper-undo, then undo-more
|
||
(viper-undo-more)
|
||
;; otherwise execute the command stored in viper-d-com. if arg is
|
||
;; non-nil its prefix value is used as new prefix value for the command.
|
||
(let ((m-com (car viper-d-com))
|
||
(val (viper-P-val arg))
|
||
(com (nth 2 viper-d-com))
|
||
(reg (nth 3 viper-d-com)))
|
||
(if (null val) (setq val (nth 1 viper-d-com)))
|
||
(if (null m-com) (error "No previous command to repeat."))
|
||
(setq viper-use-register reg)
|
||
(if (nth 4 viper-d-com) ; text inserted by command
|
||
(setq viper-last-insertion (nth 4 viper-d-com)
|
||
viper-d-char (nth 4 viper-d-com)))
|
||
(funcall m-com (cons val com))
|
||
(cond ((and (< save-point (point)) viper-keep-point-on-repeat)
|
||
(goto-char save-point)) ; go back to before repeat.
|
||
((and (< save-point (point)) viper-ex-style-editing)
|
||
(or (bolp) (backward-char 1))))
|
||
(if (and (eolp) (not (bolp)))
|
||
(backward-char 1))
|
||
))
|
||
(viper-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 viper-d-com
|
||
;; because viper-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 'viper-display-current-destructive-command)
|
||
(viper-push-onto-ring viper-d-com 'viper-command-ring))
|
||
(viper-deactivate-mark)
|
||
))
|
||
|
||
(defun viper-repeat-from-history ()
|
||
"Repeat a destructive command from history.
|
||
Doesn't change viper-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* ((viper-intermediate-command 'repeating-display-destructive-command)
|
||
(idx (cond (viper-this-kbd-macro
|
||
(string-to-number
|
||
(symbol-name (elt viper-this-kbd-macro 1))))
|
||
(t 0)))
|
||
(num idx)
|
||
(viper-d-com viper-d-com))
|
||
|
||
(or (and (numberp num) (<= 0 num) (<= num 9))
|
||
(progn
|
||
(setq idx 0
|
||
num 0)
|
||
(message
|
||
"`viper-repeat-from-history' must be invoked as a Vi macro bound to `<key><digit>'")))
|
||
(while (< 0 num)
|
||
(setq viper-d-com (viper-special-ring-rotate1 viper-command-ring -1))
|
||
(setq num (1- num)))
|
||
(viper-repeat nil)
|
||
(while (> idx num)
|
||
(viper-special-ring-rotate1 viper-command-ring 1)
|
||
(setq num (1+ num)))
|
||
))
|
||
|
||
|
||
;; The hash-command. It is invoked interactively by the key sequence #<char>.
|
||
;; The chars that can follow `#' are determined by viper-hash-command-p
|
||
(defun viper-special-prefix-com (char)
|
||
(cond ((= char ?c)
|
||
(downcase-region (min viper-com-point (point))
|
||
(max viper-com-point (point))))
|
||
((= char ?C)
|
||
(upcase-region (min viper-com-point (point))
|
||
(max viper-com-point (point))))
|
||
((= char ?g)
|
||
(push-mark viper-com-point t)
|
||
(viper-global-execute))
|
||
((= char ?q)
|
||
(push-mark viper-com-point t)
|
||
(viper-quote-region))
|
||
((= char ?s) (funcall viper-spell-function viper-com-point (point)))
|
||
(t (error "#%c: %s" char viper-InvalidViCommand))))
|
||
|
||
|
||
;; undoing
|
||
|
||
(defun viper-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 viper-keep-point-on-undo
|
||
(pos-visible-in-window-p before-undo-pt))
|
||
(progn
|
||
(push-mark (point-marker) t)
|
||
(viper-sit-for-short 300)
|
||
(goto-char undo-end-posn)
|
||
(viper-sit-for-short 300)
|
||
(if (and (> (viper-chars-in-region undo-beg-posn before-undo-pt) 1)
|
||
(> (viper-chars-in-region 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 'viper-undo))
|
||
|
||
;; Continue undoing previous changes.
|
||
(defun viper-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 'viper-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 viper-adjust-undo ()
|
||
(if viper-undo-needs-adjustment
|
||
(let ((inhibit-quit t)
|
||
tmp tmp2)
|
||
(setq viper-undo-needs-adjustment nil)
|
||
(if (listp buffer-undo-list)
|
||
(if (setq tmp (memq viper-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 viper-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 viper-set-complex-command-for-undo ()
|
||
(if (listp buffer-undo-list)
|
||
(if (not viper-undo-needs-adjustment)
|
||
(let ((inhibit-quit t))
|
||
(setq buffer-undo-list
|
||
(cons viper-buffer-undo-list-mark buffer-undo-list))
|
||
(setq viper-undo-needs-adjustment t)))))
|
||
|
||
|
||
|
||
|
||
(defun viper-display-current-destructive-command ()
|
||
(let ((text (nth 4 viper-d-com))
|
||
(keys (nth 5 viper-d-com))
|
||
(max-text-len 30))
|
||
|
||
(setq this-command 'viper-display-current-destructive-command)
|
||
|
||
(message " `.' runs %s%s"
|
||
(concat "`" (viper-array-to-string keys) "'")
|
||
(viper-abbreviate-string
|
||
(if viper-xemacs-p
|
||
(replace-in-string
|
||
(cond ((characterp text) (char-to-string text))
|
||
((stringp text) text)
|
||
(t ""))
|
||
"\n" "^J")
|
||
text)
|
||
max-text-len
|
||
" inserting `" "'" " ......."))
|
||
))
|
||
|
||
|
||
;; don't change viper-d-com if it was viper-repeat command invoked with `.'
|
||
;; or in some other way (non-interactively).
|
||
(defun viper-set-destructive-command (list)
|
||
(or (eq viper-intermediate-command 'viper-repeat)
|
||
(progn
|
||
(setq viper-d-com list)
|
||
(setcar (nthcdr 5 viper-d-com)
|
||
(viper-array-to-string (if (arrayp viper-this-command-keys)
|
||
viper-this-command-keys
|
||
(this-command-keys))))
|
||
(viper-push-onto-ring viper-d-com 'viper-command-ring)))
|
||
(setq viper-this-command-keys nil))
|
||
|
||
|
||
(defun viper-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 viper-intermediate-command)
|
||
(if (eq last-command 'viper-display-current-destructive-command)
|
||
;; repeated search through command history
|
||
(setq viper-intermediate-command
|
||
'repeating-display-destructive-command)
|
||
;; first search through command history--set temp ring
|
||
(setq viper-temp-command-ring (copy-list viper-command-ring)))
|
||
(setq cmd (if next
|
||
(viper-special-ring-rotate1 viper-temp-command-ring 1)
|
||
(viper-special-ring-rotate1 viper-temp-command-ring -1)))
|
||
(if (null cmd)
|
||
()
|
||
(setq viper-d-com cmd))
|
||
(viper-display-current-destructive-command)))
|
||
|
||
|
||
(defun viper-next-destructive-command ()
|
||
"Find next destructive command in the history of destructive commands."
|
||
(interactive)
|
||
(viper-prev-destructive-command 'next))
|
||
|
||
|
||
(defun viper-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 (viper-intermediate-command)
|
||
(if (eq last-command 'viper-insert-from-insertion-ring)
|
||
(progn ; repeated search through insertion history
|
||
(setq viper-intermediate-command 'repeating-insertion-from-ring)
|
||
(if (eq viper-current-state 'replace-state)
|
||
(undo 1)
|
||
(if viper-last-inserted-string-from-insertion-ring
|
||
(backward-delete-char
|
||
(length viper-last-inserted-string-from-insertion-ring))))
|
||
)
|
||
;;first search through insertion history
|
||
(setq viper-temp-insertion-ring (copy-list viper-insertion-ring)))
|
||
(setq this-command 'viper-insert-from-insertion-ring)
|
||
;; so that things will be undone properly
|
||
(setq buffer-undo-list (cons nil buffer-undo-list))
|
||
(setq viper-last-inserted-string-from-insertion-ring
|
||
(viper-special-ring-rotate1 viper-temp-insertion-ring (if arg 1 -1)))
|
||
|
||
;; this change of viper-intermediate-command must come after
|
||
;; viper-special-ring-rotate1, so that the ring will rotate, but before the
|
||
;; insertion.
|
||
(setq viper-intermediate-command nil)
|
||
(if viper-last-inserted-string-from-insertion-ring
|
||
(insert viper-last-inserted-string-from-insertion-ring))
|
||
))
|
||
|
||
(defun viper-insert-next-from-insertion-ring ()
|
||
"Cycle through insertion ring in the direction of older insertions.
|
||
Undo previous insertion and inserts new."
|
||
(interactive)
|
||
(viper-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 viper-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 (viper-is-in-minibuffer))
|
||
(not buffer-read-only))
|
||
(insert "\n"))))
|
||
|
||
(defun viper-yank-defun ()
|
||
(mark-defun)
|
||
(copy-region-as-kill (point) (mark t)))
|
||
|
||
;; Enlarge region between BEG and END.
|
||
(defun viper-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 viper-quote-region ()
|
||
(let ((quote-str viper-quote-string)
|
||
(donot-change-dafault t))
|
||
(setq quote-str
|
||
(viper-read-string-with-history
|
||
"Quote string: "
|
||
nil
|
||
'viper-quote-region-history
|
||
(cond ((string-match "tex.*-mode" (symbol-name major-mode)) "%%")
|
||
((string-match "java.*-mode" (symbol-name major-mode)) "//")
|
||
((string-match "perl.*-mode" (symbol-name major-mode)) "#")
|
||
((string-match "lisp.*-mode" (symbol-name major-mode)) ";;")
|
||
((memq major-mode '(c-mode cc-mode c++-mode)) "//")
|
||
((memq major-mode '(sh-mode shell-mode)) "#")
|
||
(t (setq donot-change-dafault nil)
|
||
quote-str))))
|
||
(or donot-change-dafault
|
||
(setq viper-quote-string quote-str))
|
||
(viper-enlarge-region (point) (mark t))
|
||
(if (> (point) (mark t)) (exchange-point-and-mark))
|
||
(insert quote-str)
|
||
(beginning-of-line)
|
||
(forward-line 1)
|
||
(while (and (< (point) (mark t)) (bolp))
|
||
(insert quote-str)
|
||
(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 viper-same-line (beg end)
|
||
(let ((selective-display nil)
|
||
(incr 0)
|
||
temp)
|
||
(if (and beg end (> beg end))
|
||
(setq temp beg
|
||
beg end
|
||
end temp))
|
||
(if (and beg end)
|
||
(cond ((or (> beg (point-max)) (> end (point-max))) ; out of range
|
||
nil)
|
||
(t
|
||
;; This 'if' is needed because Emacs treats the next empty line
|
||
;; as part of the previous line.
|
||
(if (= (viper-line-pos 'start) end)
|
||
(setq incr 1))
|
||
(<= (+ incr (count-lines beg end)) 1))))
|
||
))
|
||
|
||
|
||
;; Check if the string ends with a newline.
|
||
(defun viper-end-with-a-newline-p (string)
|
||
(or (string= string "")
|
||
(= (viper-seq-last-elt string) ?\n)))
|
||
|
||
(defun viper-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 viper-set-minibuffer-style ()
|
||
(add-hook 'minibuffer-setup-hook 'viper-minibuffer-setup-sentinel))
|
||
|
||
|
||
(defun viper-minibuffer-setup-sentinel ()
|
||
(let ((hook (if viper-vi-style-in-minibuffer
|
||
'viper-change-state-to-insert
|
||
'viper-change-state-to-emacs)))
|
||
(funcall hook)
|
||
))
|
||
|
||
;; Thie is a temp hook that uses free variables init-message and initial.
|
||
;; A dirty feature, but it is the simplest way to have it do the right thing.
|
||
;; The init-message and initial vars come from the scope set by
|
||
;; viper-read-string-with-history
|
||
(defun viper-minibuffer-standard-hook ()
|
||
(if (stringp init-message)
|
||
(viper-tmp-insert-at-eob init-message))
|
||
(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))
|
||
(if (fboundp 'minibuffer-prompt-end)
|
||
(delete-region (minibuffer-prompt-end) (point-max))
|
||
(erase-buffer))
|
||
(insert initial)))
|
||
(viper-minibuffer-setup-sentinel))
|
||
|
||
(defsubst viper-minibuffer-real-start ()
|
||
(if (fboundp 'minibuffer-prompt-end)
|
||
(minibuffer-prompt-end)
|
||
(point-min)))
|
||
|
||
|
||
;; Interpret last event in the local map first; if fails, use exit-minibuffer.
|
||
;; Run viper-minibuffer-exit-hook before exiting.
|
||
(defun viper-exit-minibuffer ()
|
||
"Exit minibuffer Viper way."
|
||
(interactive)
|
||
(let (command)
|
||
(setq command (local-key-binding (char-to-string last-command-char)))
|
||
(run-hooks 'viper-minibuffer-exit-hook)
|
||
(if command
|
||
(command-execute command)
|
||
(exit-minibuffer))))
|
||
|
||
|
||
(defcustom viper-smart-suffix-list
|
||
'("" "tex" "c" "cc" "C" "java" "el" "html" "htm" "xml"
|
||
"pl" "flr" "P" "p" "h" "H")
|
||
"*List of suffixes that Viper 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."
|
||
:type '(repeat string)
|
||
:group 'viper-misc)
|
||
|
||
|
||
;; Try to add a suitable suffix to files whose name ends with a `.'
|
||
;; Useful when the user hits RET on a non-completed file name.
|
||
;; Used as a minibuffer exit hook in read-file-name
|
||
(defun viper-file-add-suffix ()
|
||
(let ((count 0)
|
||
(len (length viper-smart-suffix-list))
|
||
(file (buffer-substring-no-properties
|
||
(viper-minibuffer-real-start) (point-max)))
|
||
found key cmd suff)
|
||
(goto-char (point-max))
|
||
(if (and viper-smart-suffix-list (string-match "\\.$" file))
|
||
(progn
|
||
(while (and (not found) (< count len))
|
||
(setq suff (nth count viper-smart-suffix-list)
|
||
count (1+ count))
|
||
(if (file-exists-p
|
||
(format "%s%s" (substitute-in-file-name file) suff))
|
||
(progn
|
||
(setq found t)
|
||
(insert suff))))
|
||
|
||
(if found
|
||
()
|
||
(viper-tmp-insert-at-eob " [Please complete file name]")
|
||
(unwind-protect
|
||
(while (not (memq cmd
|
||
'(exit-minibuffer viper-exit-minibuffer)))
|
||
(setq cmd
|
||
(key-binding (setq key (read-key-sequence nil))))
|
||
(cond ((eq cmd 'self-insert-command)
|
||
(if viper-xemacs-p
|
||
(insert (events-to-keys key))
|
||
(insert key)))
|
||
((memq cmd '(exit-minibuffer viper-exit-minibuffer))
|
||
nil)
|
||
(t (command-execute cmd)))
|
||
)))
|
||
))))
|
||
|
||
|
||
(defun viper-minibuffer-trim-tail ()
|
||
"Delete junk at the end of the first line of the minibuffer input.
|
||
Remove this function from `viper-minibuffer-exit-hook', if this causes
|
||
problems."
|
||
(if (viper-is-in-minibuffer)
|
||
(progn
|
||
(goto-char (viper-minibuffer-real-start))
|
||
(end-of-line)
|
||
(delete-region (point) (point-max)))))
|
||
|
||
|
||
;;; Reading string with history
|
||
|
||
(defun viper-read-string-with-history (prompt &optional initial
|
||
history-var default keymap
|
||
init-message)
|
||
;; 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.
|
||
;; Default value is displayed until the user types something in the
|
||
;; minibuffer.
|
||
;; KEYMAP is used, if given, instead of minibuffer-local-map.
|
||
;; INIT-MESSAGE is the message temporarily displayed after entering the
|
||
;; minibuffer.
|
||
(let ((minibuffer-setup-hook 'viper-minibuffer-standard-hook)
|
||
(val "")
|
||
(padding "")
|
||
temp-msg)
|
||
|
||
(setq keymap (or keymap minibuffer-local-map)
|
||
initial (or initial "")
|
||
temp-msg (if default
|
||
(format "(default: %s) " default)
|
||
""))
|
||
|
||
(setq viper-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 (viper-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 viper-ex,
|
||
;; viper-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
|
||
'(viper-ex
|
||
viper-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 viper-repeat-insert-command ()
|
||
(let ((i-com (car viper-d-com))
|
||
(val (nth 1 viper-d-com))
|
||
(char (nth 2 viper-d-com)))
|
||
(if (and val (> val 1)) ; first check that val is non-nil
|
||
(progn
|
||
(setq viper-d-com (list i-com (1- val) ?r nil nil nil))
|
||
(viper-repeat nil)
|
||
(setq viper-d-com (list i-com val char nil nil nil))
|
||
))))
|
||
|
||
(defun viper-insert (arg)
|
||
"Insert before point."
|
||
(interactive "P")
|
||
(viper-set-complex-command-for-undo)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(viper-set-destructive-command (list 'viper-insert val ?r nil nil nil))
|
||
(if com
|
||
(viper-loop val (viper-yank-last-insertion))
|
||
(viper-change-state-to-insert))))
|
||
|
||
(defun viper-append (arg)
|
||
"Append after point."
|
||
(interactive "P")
|
||
(viper-set-complex-command-for-undo)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(viper-set-destructive-command (list 'viper-append val ?r nil nil nil))
|
||
(if (not (eolp)) (forward-char))
|
||
(if (equal com ?r)
|
||
(viper-loop val (viper-yank-last-insertion))
|
||
(viper-change-state-to-insert))))
|
||
|
||
(defun viper-Append (arg)
|
||
"Append at end of line."
|
||
(interactive "P")
|
||
(viper-set-complex-command-for-undo)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(viper-set-destructive-command (list 'viper-Append val ?r nil nil nil))
|
||
(end-of-line)
|
||
(if (equal com ?r)
|
||
(viper-loop val (viper-yank-last-insertion))
|
||
(viper-change-state-to-insert))))
|
||
|
||
(defun viper-Insert (arg)
|
||
"Insert before first non-white."
|
||
(interactive "P")
|
||
(viper-set-complex-command-for-undo)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(viper-set-destructive-command (list 'viper-Insert val ?r nil nil nil))
|
||
(back-to-indentation)
|
||
(if (equal com ?r)
|
||
(viper-loop val (viper-yank-last-insertion))
|
||
(viper-change-state-to-insert))))
|
||
|
||
(defun viper-open-line (arg)
|
||
"Open line below."
|
||
(interactive "P")
|
||
(viper-set-complex-command-for-undo)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(viper-set-destructive-command (list 'viper-open-line val ?r nil nil nil))
|
||
(let ((col (current-indentation)))
|
||
(if (equal com ?r)
|
||
(viper-loop val
|
||
(end-of-line)
|
||
(newline 1)
|
||
(if viper-auto-indent
|
||
(progn
|
||
(setq viper-cted t)
|
||
(if viper-electric-mode
|
||
(indent-according-to-mode)
|
||
(indent-to col))
|
||
))
|
||
(viper-yank-last-insertion))
|
||
(end-of-line)
|
||
(newline 1)
|
||
(if viper-auto-indent
|
||
(progn
|
||
(setq viper-cted t)
|
||
(if viper-electric-mode
|
||
(indent-according-to-mode)
|
||
(indent-to col))))
|
||
(viper-change-state-to-insert)))))
|
||
|
||
(defun viper-Open-line (arg)
|
||
"Open line above."
|
||
(interactive "P")
|
||
(viper-set-complex-command-for-undo)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(viper-set-destructive-command (list 'viper-Open-line val ?r nil nil nil))
|
||
(let ((col (current-indentation)))
|
||
(if (equal com ?r)
|
||
(viper-loop val
|
||
(beginning-of-line)
|
||
(open-line 1)
|
||
(if viper-auto-indent
|
||
(progn
|
||
(setq viper-cted t)
|
||
(if viper-electric-mode
|
||
(indent-according-to-mode)
|
||
(indent-to col))
|
||
))
|
||
(viper-yank-last-insertion))
|
||
(beginning-of-line)
|
||
(open-line 1)
|
||
(if viper-auto-indent
|
||
(progn
|
||
(setq viper-cted t)
|
||
(if viper-electric-mode
|
||
(indent-according-to-mode)
|
||
(indent-to col))
|
||
))
|
||
(viper-change-state-to-insert)))))
|
||
|
||
(defun viper-open-line-at-point (arg)
|
||
"Open line at point."
|
||
(interactive "P")
|
||
(viper-set-complex-command-for-undo)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(viper-set-destructive-command
|
||
(list 'viper-open-line-at-point val ?r nil nil nil))
|
||
(if (equal com ?r)
|
||
(viper-loop val
|
||
(open-line 1)
|
||
(viper-yank-last-insertion))
|
||
(open-line 1)
|
||
(viper-change-state-to-insert))))
|
||
|
||
(defun viper-substitute (arg)
|
||
"Substitute characters."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(push-mark nil t)
|
||
(forward-char val)
|
||
(if (equal com ?r)
|
||
(viper-change-subr (mark t) (point))
|
||
(viper-change (mark t) (point)))
|
||
(viper-set-destructive-command (list 'viper-substitute val ?r nil nil nil))
|
||
))
|
||
|
||
;; Command bound to S
|
||
(defun viper-substitute-line (arg)
|
||
"Substitute lines."
|
||
(interactive "p")
|
||
(viper-set-complex-command-for-undo)
|
||
(viper-line (cons arg ?C)))
|
||
|
||
;; Prepare for replace
|
||
(defun viper-start-replace ()
|
||
(setq viper-began-as-replace t
|
||
viper-sitting-in-replace t
|
||
viper-replace-chars-to-delete 0)
|
||
(add-hook
|
||
'viper-after-change-functions 'viper-replace-mode-spy-after t 'local)
|
||
(add-hook
|
||
'viper-before-change-functions 'viper-replace-mode-spy-before t 'local)
|
||
;; this will get added repeatedly, but no harm
|
||
(add-hook 'after-change-functions 'viper-after-change-sentinel t)
|
||
(add-hook 'before-change-functions 'viper-before-change-sentinel t)
|
||
(viper-move-marker-locally
|
||
'viper-last-posn-in-replace-region (viper-replace-start))
|
||
(add-hook
|
||
'viper-post-command-hooks 'viper-replace-state-post-command-sentinel
|
||
t 'local)
|
||
(add-hook
|
||
'viper-pre-command-hooks 'viper-replace-state-pre-command-sentinel t 'local)
|
||
;; guard against a smartie who switched from R-replace to normal replace
|
||
(remove-hook
|
||
'viper-post-command-hooks 'viper-R-state-post-command-sentinel 'local)
|
||
(if overwrite-mode (overwrite-mode nil))
|
||
)
|
||
|
||
|
||
(defun viper-replace-mode-spy-before (beg end)
|
||
(setq viper-replace-region-chars-deleted (viper-chars-in-region beg end))
|
||
)
|
||
|
||
;; Invoked as an after-change-function to calculate how many chars have to be
|
||
;; deleted. This function may be called several times within a single command,
|
||
;; if this command performs several separate buffer changes. Therefore, if
|
||
;; adds up the number of chars inserted and subtracts the number of chars
|
||
;; deleted.
|
||
(defun viper-replace-mode-spy-after (beg end length)
|
||
(if (memq viper-intermediate-command
|
||
'(dabbrev-expand hippie-expand repeating-insertion-from-ring))
|
||
;; Take special care of text insertion from insertion ring inside
|
||
;; replacement overlays.
|
||
(progn
|
||
(setq viper-replace-chars-to-delete 0)
|
||
(viper-move-marker-locally
|
||
'viper-last-posn-in-replace-region (point)))
|
||
|
||
(let* ((real-end (min end (viper-replace-end)))
|
||
(column-shift (- (save-excursion (goto-char real-end)
|
||
(current-column))
|
||
(save-excursion (goto-char beg)
|
||
(current-column))))
|
||
(chars-deleted 0))
|
||
|
||
(if (> length 0)
|
||
(setq chars-deleted viper-replace-region-chars-deleted))
|
||
(setq viper-replace-region-chars-deleted 0)
|
||
(setq viper-replace-chars-to-delete
|
||
(+ viper-replace-chars-to-delete
|
||
(-
|
||
;; if column shift is bigger, due to a TAB insertion, take
|
||
;; column-shift instead of the number of inserted chars
|
||
(max (viper-chars-in-region beg real-end)
|
||
;; This test accounts for Chinese/Japanese/... chars,
|
||
;; which occupy 2 columns instead of one. If we use
|
||
;; column-shift here, we may delete two chars instead of
|
||
;; one when the user types one Chinese character.
|
||
;; Deleting two would be OK, if they were European chars,
|
||
;; but it is not OK if they are Chinese chars.
|
||
;; Since it is hard to
|
||
;; figure out which characters are being deleted in any
|
||
;; given region, we decided to treat Eastern and European
|
||
;; characters equally, even though Eastern chars may
|
||
;; occupy more columns.
|
||
(if (memq this-command '(self-insert-command
|
||
quoted-insert viper-insert-tab))
|
||
column-shift
|
||
0))
|
||
;; the number of deleted chars
|
||
chars-deleted)))
|
||
|
||
(viper-move-marker-locally
|
||
'viper-last-posn-in-replace-region
|
||
(max (if (> end (viper-replace-end)) (viper-replace-end) end)
|
||
(or (marker-position viper-last-posn-in-replace-region)
|
||
(viper-replace-start))
|
||
))
|
||
|
||
)))
|
||
|
||
|
||
;; Delete stuff between viper-last-posn-in-replace-region and the end of
|
||
;; viper-replace-overlay-marker, if viper-last-posn-in-replace-region is within
|
||
;; the overlay and current point is before the end of the overlay.
|
||
;; Don't delete anything if current point is past the end of the overlay.
|
||
(defun viper-finish-change ()
|
||
(remove-hook
|
||
'viper-after-change-functions 'viper-replace-mode-spy-after 'local)
|
||
(remove-hook
|
||
'viper-before-change-functions 'viper-replace-mode-spy-before 'local)
|
||
(remove-hook
|
||
'viper-post-command-hooks 'viper-replace-state-post-command-sentinel 'local)
|
||
(remove-hook
|
||
'viper-pre-command-hooks 'viper-replace-state-pre-command-sentinel 'local)
|
||
(viper-restore-cursor-color 'after-replace-mode)
|
||
(setq viper-sitting-in-replace nil) ; just in case we'll need to know it
|
||
(save-excursion
|
||
(if (and viper-replace-overlay
|
||
(viper-pos-within-region viper-last-posn-in-replace-region
|
||
(viper-replace-start)
|
||
(viper-replace-end))
|
||
(< (point) (viper-replace-end)))
|
||
(delete-region
|
||
viper-last-posn-in-replace-region (viper-replace-end))))
|
||
|
||
(if (eq viper-current-state 'replace-state)
|
||
(viper-downgrade-to-insert))
|
||
;; replace mode ended => nullify viper-last-posn-in-replace-region
|
||
(viper-move-marker-locally 'viper-last-posn-in-replace-region nil)
|
||
(viper-hide-replace-overlay)
|
||
(viper-refresh-mode-line)
|
||
(viper-put-string-on-kill-ring viper-last-replace-region)
|
||
)
|
||
|
||
;; Make STRING be the first element of the kill ring.
|
||
(defun viper-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 viper-finish-R-mode ()
|
||
(remove-hook
|
||
'viper-post-command-hooks 'viper-R-state-post-command-sentinel 'local)
|
||
(remove-hook
|
||
'viper-pre-command-hooks 'viper-replace-state-pre-command-sentinel 'local)
|
||
(viper-downgrade-to-insert))
|
||
|
||
(defun viper-start-R-mode ()
|
||
;; Leave arg as 1, not t: XEmacs insists that it must be a pos number
|
||
(overwrite-mode 1)
|
||
(add-hook
|
||
'viper-post-command-hooks 'viper-R-state-post-command-sentinel t 'local)
|
||
(add-hook
|
||
'viper-pre-command-hooks 'viper-replace-state-pre-command-sentinel t 'local)
|
||
;; guard against a smartie who switched from R-replace to normal replace
|
||
(remove-hook
|
||
'viper-post-command-hooks 'viper-replace-state-post-command-sentinel 'local)
|
||
)
|
||
|
||
|
||
|
||
(defun viper-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 in replace mode invoked via 'R'
|
||
(viper-finish-R-mode)
|
||
(viper-finish-change))
|
||
(let (com)
|
||
(if (eq this-command 'viper-intercept-ESC-key)
|
||
(setq com 'viper-exit-insert-state)
|
||
(viper-set-unread-command-events last-input-char)
|
||
(setq com (key-binding (read-key-sequence nil))))
|
||
|
||
(condition-case conds
|
||
(command-execute com)
|
||
(error
|
||
(viper-message-conditions conds)))
|
||
)
|
||
(viper-hide-replace-overlay))
|
||
|
||
|
||
(defun viper-replace-state-carriage-return ()
|
||
"Carriage return in Viper replace state."
|
||
(interactive)
|
||
;; If Emacs start supporting overlay maps, as it currently supports
|
||
;; text-property maps, we could do away with viper-replace-minor-mode and
|
||
;; just have keymap attached to replace overlay. Then the "if part" of this
|
||
;; statement can be deleted.
|
||
(if (or (< (point) (viper-replace-start))
|
||
(> (point) (viper-replace-end)))
|
||
(let (viper-replace-minor-mode com)
|
||
(viper-set-unread-command-events last-input-char)
|
||
(setq com (key-binding (read-key-sequence nil)))
|
||
(condition-case conds
|
||
(command-execute com)
|
||
(error
|
||
(viper-message-conditions conds))))
|
||
(if (not viper-allow-multiline-replace-regions)
|
||
(viper-replace-state-exit-cmd)
|
||
(if (viper-same-line (point) (viper-replace-end))
|
||
(viper-replace-state-exit-cmd)
|
||
;; delete the rest of line
|
||
(delete-region (point) (viper-line-pos 'end))
|
||
(save-excursion
|
||
(end-of-line)
|
||
(if (eobp) (error "Last line in buffer")))
|
||
;; skip to the next line
|
||
(forward-line 1)
|
||
(back-to-indentation)
|
||
))))
|
||
|
||
|
||
;; This is the function bound to 'R'---unlimited replace.
|
||
;; Similar to Emacs's own overwrite-mode.
|
||
(defun viper-overwrite (arg)
|
||
"Begin overwrite mode."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)) (len))
|
||
(viper-set-destructive-command (list 'viper-overwrite val ?r nil nil nil))
|
||
(if com
|
||
(progn
|
||
;; Viper saves inserted text in viper-last-insertion
|
||
(setq len (length viper-last-insertion))
|
||
(delete-char len)
|
||
(viper-loop val (viper-yank-last-insertion)))
|
||
(setq last-command 'viper-overwrite)
|
||
(viper-set-complex-command-for-undo)
|
||
(viper-set-replace-overlay (point) (viper-line-pos 'end))
|
||
(viper-change-state-to-replace)
|
||
)))
|
||
|
||
|
||
;; line commands
|
||
|
||
(defun viper-line (arg)
|
||
(let ((val (car arg))
|
||
(com (cdr arg)))
|
||
(viper-move-marker-locally 'viper-com-point (point))
|
||
(if (not (eobp))
|
||
(viper-next-line-carefully (1- val)))
|
||
;; the following ensures that dd, cc, D, yy will do the right thing on the
|
||
;; last line of buffer when this line has no \n.
|
||
(viper-add-newline-at-eob-if-necessary)
|
||
(viper-execute-com 'viper-line val com))
|
||
(if (and (eobp) (not (bobp))) (forward-line -1))
|
||
)
|
||
|
||
(defun viper-yank-line (arg)
|
||
"Yank ARG lines (in Vi's sense)."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg)))
|
||
(viper-line (cons val ?Y))))
|
||
|
||
|
||
;; region commands
|
||
|
||
(defun viper-region (arg)
|
||
"Execute command on a region."
|
||
(interactive "P")
|
||
(let ((val (viper-P-val arg))
|
||
(com (viper-getcom arg)))
|
||
(viper-move-marker-locally 'viper-com-point (point))
|
||
(exchange-point-and-mark)
|
||
(viper-execute-com 'viper-region val com)))
|
||
|
||
(defun viper-Region (arg)
|
||
"Execute command on a Region."
|
||
(interactive "P")
|
||
(let ((val (viper-P-val arg))
|
||
(com (viper-getCom arg)))
|
||
(viper-move-marker-locally 'viper-com-point (point))
|
||
(exchange-point-and-mark)
|
||
(viper-execute-com 'viper-Region val com)))
|
||
|
||
(defun viper-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 (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(viper-replace-char-subr com val)
|
||
(if (and (eolp) (not (bolp))) (forward-char 1))
|
||
(setq viper-this-command-keys
|
||
(format "%sr" (if (integerp arg) arg "")))
|
||
(viper-set-destructive-command
|
||
(list 'viper-replace-char val ?r nil viper-d-char nil))
|
||
))
|
||
|
||
(defun viper-replace-char-subr (com arg)
|
||
(let (char)
|
||
(setq char (if (equal com ?r)
|
||
viper-d-char
|
||
(read-char)))
|
||
(let (inhibit-quit) ; preserve consistency of undo-list and iso-accents
|
||
(if (and viper-automatic-iso-accents (memq char '(?' ?\" ?^ ?~)))
|
||
;; get European characters
|
||
(progn
|
||
(viper-set-iso-accents-mode t)
|
||
(viper-set-unread-command-events char)
|
||
(setq char (aref (read-key-sequence nil) 0))
|
||
(viper-set-iso-accents-mode nil)))
|
||
(viper-set-complex-command-for-undo)
|
||
(if (eq char ?\C-m) (setq char ?\n))
|
||
(if (and viper-special-input-method (fboundp 'quail-start-translation))
|
||
;; get Intl. characters
|
||
(progn
|
||
(viper-set-input-method t)
|
||
(setq last-command-event
|
||
(viper-copy-event
|
||
(if viper-xemacs-p (character-to-event char) char)))
|
||
(delete-char 1 t)
|
||
(condition-case nil
|
||
(if com
|
||
(insert char)
|
||
(if viper-emacs-p
|
||
(quail-start-translation 1)
|
||
(quail-start-translation)))
|
||
(error))
|
||
;; quail translation failed
|
||
(if (and (not (stringp quail-current-str))
|
||
(not (viper-characterp quail-current-str)))
|
||
(progn
|
||
(viper-adjust-undo)
|
||
(undo-start)
|
||
(undo-more 1)
|
||
(viper-set-input-method nil)
|
||
(error "Composing character failed, changes undone")))
|
||
;; quail translation seems ok
|
||
(or com
|
||
;;(setq char quail-current-str))
|
||
(setq char (viper-char-at-pos 'backward)))
|
||
(setq viper-d-char char)
|
||
(viper-loop (1- (if (> arg 0) arg (- arg)))
|
||
(delete-char 1 t)
|
||
(insert char))
|
||
(viper-set-input-method nil))
|
||
(delete-char arg t)
|
||
(setq viper-d-char char)
|
||
(viper-loop (if (> arg 0) arg (- arg))
|
||
(insert char)))
|
||
(viper-adjust-undo)
|
||
(backward-char arg))))
|
||
|
||
|
||
;; basic cursor movement. j, k, l, h commands.
|
||
|
||
(defun viper-forward-char (arg)
|
||
"Move point right ARG characters (left if ARG negative).
|
||
On reaching end of line, stop and signal error."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(if viper-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 'viper-execute-com', but, of
|
||
;; course, 'dl' doesn't work on an empty line, so we have to
|
||
;; catch that condition before 'viper-execute-com'
|
||
(if (and (eolp) (bolp)) (error "") (forward-char val))
|
||
(if com (viper-execute-com 'viper-forward-char val com))
|
||
(if (eolp) (progn (backward-char 1) (error ""))))
|
||
(forward-char val)
|
||
(if com (viper-execute-com 'viper-forward-char val com)))))
|
||
|
||
|
||
(defun viper-backward-char (arg)
|
||
"Move point left ARG characters (right if ARG negative).
|
||
On reaching beginning of line, stop and signal error."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(if viper-ex-style-motion
|
||
(progn
|
||
(if (bolp) (error "") (backward-char val))
|
||
(if com (viper-execute-com 'viper-backward-char val com)))
|
||
(backward-char val)
|
||
(if com (viper-execute-com 'viper-backward-char val com)))))
|
||
|
||
|
||
;; Like forward-char, but doesn't move at end of buffer.
|
||
;; Returns distance traveled
|
||
;; (positive or 0, if arg positive; negative if arg negative).
|
||
(defun viper-forward-char-carefully (&optional arg)
|
||
(setq arg (or arg 1))
|
||
(let ((pt (point)))
|
||
(condition-case nil
|
||
(forward-char arg)
|
||
(error))
|
||
(if (< (point) pt) ; arg was negative
|
||
(- (viper-chars-in-region pt (point)))
|
||
(viper-chars-in-region pt (point)))))
|
||
|
||
|
||
;; Like backward-char, but doesn't move at beg of buffer.
|
||
;; Returns distance traveled
|
||
;; (negative or 0, if arg positive; positive if arg negative).
|
||
(defun viper-backward-char-carefully (&optional arg)
|
||
(setq arg (or arg 1))
|
||
(let ((pt (point)))
|
||
(condition-case nil
|
||
(backward-char arg)
|
||
(error))
|
||
(if (> (point) pt) ; arg was negative
|
||
(viper-chars-in-region pt (point))
|
||
(- (viper-chars-in-region pt (point))))))
|
||
|
||
(defun viper-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
|
||
;; viper-syntax-preference is 'vi, then `_' is part of the word.
|
||
|
||
;; skip only one \n
|
||
(defun viper-skip-separators (forward)
|
||
(if forward
|
||
(progn
|
||
(viper-skip-all-separators-forward 'within-line)
|
||
(if (looking-at "\n")
|
||
(progn
|
||
(forward-char)
|
||
(viper-skip-all-separators-forward 'within-line))))
|
||
;; check for eob and white space before it. move off of eob
|
||
(if (and (eobp) (save-excursion
|
||
(viper-backward-char-carefully)
|
||
(viper-looking-at-separator)))
|
||
(viper-backward-char-carefully))
|
||
(viper-skip-all-separators-backward 'within-line)
|
||
(viper-backward-char-carefully)
|
||
(if (looking-at "\n")
|
||
(viper-skip-all-separators-backward 'within-line)
|
||
(or (bobp) (forward-char)))))
|
||
|
||
|
||
(defun viper-forward-word-kernel (val)
|
||
(while (> val 0)
|
||
(cond ((viper-looking-at-alpha)
|
||
(viper-skip-alpha-forward "_")
|
||
(viper-skip-separators t))
|
||
((viper-looking-at-separator)
|
||
(viper-skip-separators t))
|
||
((not (viper-looking-at-alphasep))
|
||
(viper-skip-nonalphasep-forward)
|
||
(viper-skip-separators t)))
|
||
(setq val (1- val))))
|
||
|
||
;; first skip non-newline separators backward, then skip \n. Then, if TWICE is
|
||
;; non-nil, skip non-\n back again, but don't overshoot the limit LIM.
|
||
(defun viper-separator-skipback-special (twice lim)
|
||
(let ((prev-char (viper-char-at-pos 'backward))
|
||
(saved-point (point)))
|
||
;; skip non-newline separators backward
|
||
(while (and (not (memq prev-char '(nil \n)))
|
||
(< lim (point))
|
||
;; must be non-newline separator
|
||
(if (eq viper-syntax-preference 'strict-vi)
|
||
(memq prev-char '(?\ ?\t))
|
||
(memq (char-syntax prev-char) '(?\ ?-))))
|
||
(viper-backward-char-carefully)
|
||
(setq prev-char (viper-char-at-pos 'backward)))
|
||
|
||
(if (and (< lim (point)) (eq prev-char ?\n))
|
||
(backward-char)
|
||
;; If we skipped to the next word and the prefix of this line doesn't
|
||
;; consist of separators preceded by a newline, then don't skip backwards
|
||
;; at all.
|
||
(goto-char saved-point))
|
||
(setq prev-char (viper-char-at-pos 'backward))
|
||
|
||
;; skip again, but make sure we don't overshoot the limit
|
||
(if twice
|
||
(while (and (not (memq prev-char '(nil \n)))
|
||
(< lim (point))
|
||
;; must be non-newline separator
|
||
(if (eq viper-syntax-preference 'strict-vi)
|
||
(memq prev-char '(?\ ?\t))
|
||
(memq (char-syntax prev-char) '(?\ ?-))))
|
||
(viper-backward-char-carefully)
|
||
(setq prev-char (viper-char-at-pos 'backward))))
|
||
|
||
(if (= (point) lim)
|
||
(viper-forward-char-carefully))
|
||
))
|
||
|
||
|
||
(defun viper-forward-word (arg)
|
||
"Forward word."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(viper-forward-word-kernel val)
|
||
(if com (progn
|
||
(cond ((memq com (list ?c (- ?c)))
|
||
(viper-separator-skipback-special 'twice viper-com-point))
|
||
;; Yank words including the whitespace, but not newline
|
||
((memq com (list ?y (- ?y)))
|
||
(viper-separator-skipback-special nil viper-com-point))
|
||
((viper-dotable-command-p com)
|
||
(viper-separator-skipback-special nil viper-com-point)))
|
||
(viper-execute-com 'viper-forward-word val com)))))
|
||
|
||
|
||
(defun viper-forward-Word (arg)
|
||
"Forward word delimited by white characters."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(viper-loop val
|
||
(viper-skip-nonseparators 'forward)
|
||
(viper-skip-separators t))
|
||
(if com (progn
|
||
(cond ((memq com (list ?c (- ?c)))
|
||
(viper-separator-skipback-special 'twice viper-com-point))
|
||
;; Yank words including the whitespace, but not newline
|
||
((memq com (list ?y (- ?y)))
|
||
(viper-separator-skipback-special nil viper-com-point))
|
||
((viper-dotable-command-p com)
|
||
(viper-separator-skipback-special nil viper-com-point)))
|
||
(viper-execute-com 'viper-forward-Word val com)))))
|
||
|
||
|
||
;; this is a bit different from Vi, but Vi's end of word
|
||
;; makes no sense whatsoever
|
||
(defun viper-end-of-word-kernel ()
|
||
(if (viper-end-of-word-p) (forward-char))
|
||
(if (viper-looking-at-separator)
|
||
(viper-skip-all-separators-forward))
|
||
|
||
(cond ((viper-looking-at-alpha) (viper-skip-alpha-forward "_"))
|
||
((not (viper-looking-at-alphasep)) (viper-skip-nonalphasep-forward)))
|
||
(viper-backward-char-carefully))
|
||
|
||
(defun viper-end-of-word-p ()
|
||
(or (eobp)
|
||
(save-excursion
|
||
(cond ((viper-looking-at-alpha)
|
||
(forward-char)
|
||
(not (viper-looking-at-alpha)))
|
||
((not (viper-looking-at-alphasep))
|
||
(forward-char)
|
||
(viper-looking-at-alphasep))))))
|
||
|
||
|
||
(defun viper-end-of-word (arg &optional careful)
|
||
"Move point to end of current word."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(viper-loop val (viper-end-of-word-kernel))
|
||
(if com
|
||
(progn
|
||
(forward-char)
|
||
(viper-execute-com 'viper-end-of-word val com)))))
|
||
|
||
(defun viper-end-of-Word (arg)
|
||
"Forward to end of word delimited by white character."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(viper-loop val
|
||
(viper-end-of-word-kernel)
|
||
(viper-skip-nonseparators 'forward)
|
||
(backward-char))
|
||
(if com
|
||
(progn
|
||
(forward-char)
|
||
(viper-execute-com 'viper-end-of-Word val com)))))
|
||
|
||
(defun viper-backward-word-kernel (val)
|
||
(while (> val 0)
|
||
(viper-backward-char-carefully)
|
||
(cond ((viper-looking-at-alpha)
|
||
(viper-skip-alpha-backward "_"))
|
||
((viper-looking-at-separator)
|
||
(forward-char)
|
||
(viper-skip-separators nil)
|
||
(viper-backward-char-carefully)
|
||
(cond ((viper-looking-at-alpha)
|
||
(viper-skip-alpha-backward "_"))
|
||
((not (viper-looking-at-alphasep))
|
||
(viper-skip-nonalphasep-backward))
|
||
((bobp)) ; could still be at separator, but at beg of buffer
|
||
(t (forward-char))))
|
||
((not (viper-looking-at-alphasep))
|
||
(viper-skip-nonalphasep-backward)))
|
||
(setq val (1- val))))
|
||
|
||
(defun viper-backward-word (arg)
|
||
"Backward word."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com
|
||
(let (i)
|
||
(if (setq i (save-excursion (backward-char) (looking-at "\n")))
|
||
(backward-char))
|
||
(viper-move-marker-locally 'viper-com-point (point))
|
||
(if i (forward-char))))
|
||
(viper-backward-word-kernel val)
|
||
(if com (viper-execute-com 'viper-backward-word val com))))
|
||
|
||
(defun viper-backward-Word (arg)
|
||
"Backward word delimited by white character."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com
|
||
(let (i)
|
||
(if (setq i (save-excursion (backward-char) (looking-at "\n")))
|
||
(backward-char))
|
||
(viper-move-marker-locally 'viper-com-point (point))
|
||
(if i (forward-char))))
|
||
(viper-loop val
|
||
(viper-skip-separators nil) ; nil means backward here
|
||
(viper-skip-nonseparators 'backward))
|
||
(if com (viper-execute-com 'viper-backward-Word val com))))
|
||
|
||
|
||
|
||
;; line commands
|
||
|
||
(defun viper-beginning-of-line (arg)
|
||
"Go to beginning of line."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(beginning-of-line val)
|
||
(if com (viper-execute-com 'viper-beginning-of-line val com))))
|
||
|
||
(defun viper-bol-and-skip-white (arg)
|
||
"Beginning of line at first non-white character."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(forward-to-indentation (1- val))
|
||
(if com (viper-execute-com 'viper-bol-and-skip-white val com))))
|
||
|
||
(defun viper-goto-eol (arg)
|
||
"Go to end of line."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(end-of-line val)
|
||
(if com (viper-execute-com 'viper-goto-eol val com))
|
||
(if viper-ex-style-motion
|
||
(if (and (eolp) (not (bolp))
|
||
;; a fix for viper-change-to-eol
|
||
(not (equal viper-current-state 'insert-state)))
|
||
(backward-char 1)
|
||
))))
|
||
|
||
|
||
(defun viper-goto-col (arg)
|
||
"Go to ARG's column."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg))
|
||
line-len)
|
||
(setq line-len
|
||
(viper-chars-in-region
|
||
(viper-line-pos 'start) (viper-line-pos 'end)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(beginning-of-line)
|
||
(forward-char (1- (min line-len val)))
|
||
(while (> (current-column) (1- val))
|
||
(backward-char 1))
|
||
(if com (viper-execute-com 'viper-goto-col val com))
|
||
(save-excursion
|
||
(end-of-line)
|
||
(if (> val (current-column)) (error "")))
|
||
))
|
||
|
||
|
||
(defun viper-next-line (arg)
|
||
"Go to next line."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getCom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(next-line val)
|
||
(if viper-ex-style-motion
|
||
(if (and (eolp) (not (bolp))) (backward-char 1)))
|
||
(setq this-command 'next-line)
|
||
(if com (viper-execute-com 'viper-next-line val com))))
|
||
|
||
(defun viper-next-line-at-bol (arg)
|
||
"Next line at beginning of line."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(save-excursion
|
||
(end-of-line)
|
||
(if (eobp) (error "Last line in buffer")))
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getCom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(forward-line val)
|
||
(back-to-indentation)
|
||
(if com (viper-execute-com 'viper-next-line-at-bol val com))))
|
||
|
||
|
||
(defun viper-previous-line (arg)
|
||
"Go to previous line."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getCom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(previous-line val)
|
||
(if viper-ex-style-motion
|
||
(if (and (eolp) (not (bolp))) (backward-char 1)))
|
||
(setq this-command 'previous-line)
|
||
(if com (viper-execute-com 'viper-previous-line val com))))
|
||
|
||
|
||
(defun viper-previous-line-at-bol (arg)
|
||
"Previous line at beginning of line."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(save-excursion
|
||
(beginning-of-line)
|
||
(if (bobp) (error "First line in buffer")))
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getCom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(forward-line (- val))
|
||
(back-to-indentation)
|
||
(if com (viper-execute-com 'viper-previous-line val com))))
|
||
|
||
(defun viper-change-to-eol (arg)
|
||
"Change to end of line."
|
||
(interactive "P")
|
||
(viper-goto-eol (cons arg ?c)))
|
||
|
||
(defun viper-kill-line (arg)
|
||
"Delete line."
|
||
(interactive "P")
|
||
(viper-goto-eol (cons arg ?d)))
|
||
|
||
(defun viper-erase-line (arg)
|
||
"Erase line."
|
||
(interactive "P")
|
||
(viper-beginning-of-line (cons arg ?d)))
|
||
|
||
|
||
;;; Moving around
|
||
|
||
(defun viper-goto-line (arg)
|
||
"Go to ARG's line. Without ARG go to end of buffer."
|
||
(interactive "P")
|
||
(let ((val (viper-P-val arg))
|
||
(com (viper-getCom arg)))
|
||
(viper-move-marker-locally 'viper-com-point (point))
|
||
(viper-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 (viper-execute-com 'viper-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 viper-find-char (arg char forward offset)
|
||
(or (char-or-string-p char) (error ""))
|
||
(let ((arg (if forward arg (- arg)))
|
||
(cmd (if (eq viper-intermediate-command 'viper-repeat)
|
||
(nth 5 viper-d-com)
|
||
(viper-array-to-string (this-command-keys))))
|
||
point region-beg region-end)
|
||
(save-excursion
|
||
(save-restriction
|
||
(if (> arg 0) ; forward
|
||
(progn
|
||
(setq region-beg (point))
|
||
(if viper-allow-multiline-replace-regions
|
||
(viper-forward-paragraph 1)
|
||
(end-of-line))
|
||
(setq region-end (point)))
|
||
(setq region-end (point))
|
||
(if viper-allow-multiline-replace-regions
|
||
(viper-backward-paragraph 1)
|
||
(beginning-of-line))
|
||
(setq region-beg (point)))
|
||
(if (or (and (< arg 0)
|
||
(< (- region-end region-beg)
|
||
(if viper-allow-multiline-replace-regions
|
||
2 1))
|
||
(bolp))
|
||
(and (> arg 0)
|
||
(< (- region-end region-beg)
|
||
(if viper-allow-multiline-replace-regions
|
||
3 2))
|
||
(eolp)))
|
||
(error "Command `%s': At %s of %s"
|
||
cmd
|
||
(if (> arg 0) "end" "beginning")
|
||
(if viper-allow-multiline-replace-regions
|
||
"paragraph" "line")))
|
||
(narrow-to-region region-beg region-end)
|
||
;; 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)
|
||
(backward-char (if offset 2 1))
|
||
(forward-char (if offset 1 0)))))
|
||
|
||
(defun viper-find-char-forward (arg)
|
||
"Find char on the line.
|
||
If called interactively read the char to find from the terminal, and if
|
||
called from viper-repeat, the char last used is used. This behaviour is
|
||
controlled by the sign of prefix numeric value."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg))
|
||
(cmd-representation (nth 5 viper-d-com)))
|
||
(if (> val 0)
|
||
;; this means that the function was called interactively
|
||
(setq viper-f-char (read-char)
|
||
viper-f-forward t
|
||
viper-f-offset nil)
|
||
;; viper-repeat --- set viper-F-char from command-keys
|
||
(setq viper-F-char (if (stringp cmd-representation)
|
||
(viper-seq-last-elt cmd-representation)
|
||
viper-F-char)
|
||
viper-f-char viper-F-char)
|
||
(setq val (- val)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(viper-find-char
|
||
val (if (> (viper-p-val arg) 0) viper-f-char viper-F-char) t nil)
|
||
(setq val (- val))
|
||
(if com
|
||
(progn
|
||
(setq viper-F-char viper-f-char) ; set new viper-F-char
|
||
(forward-char)
|
||
(viper-execute-com 'viper-find-char-forward val com)))))
|
||
|
||
(defun viper-goto-char-forward (arg)
|
||
"Go up to char ARG forward on line."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg))
|
||
(cmd-representation (nth 5 viper-d-com)))
|
||
(if (> val 0)
|
||
;; this means that the function was called interactively
|
||
(setq viper-f-char (read-char)
|
||
viper-f-forward t
|
||
viper-f-offset t)
|
||
;; viper-repeat --- set viper-F-char from command-keys
|
||
(setq viper-F-char (if (stringp cmd-representation)
|
||
(viper-seq-last-elt cmd-representation)
|
||
viper-F-char)
|
||
viper-f-char viper-F-char)
|
||
(setq val (- val)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(viper-find-char
|
||
val (if (> (viper-p-val arg) 0) viper-f-char viper-F-char) t t)
|
||
(setq val (- val))
|
||
(if com
|
||
(progn
|
||
(setq viper-F-char viper-f-char) ; set new viper-F-char
|
||
(forward-char)
|
||
(viper-execute-com 'viper-goto-char-forward val com)))))
|
||
|
||
(defun viper-find-char-backward (arg)
|
||
"Find char ARG on line backward."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg))
|
||
(cmd-representation (nth 5 viper-d-com)))
|
||
(if (> val 0)
|
||
;; this means that the function was called interactively
|
||
(setq viper-f-char (read-char)
|
||
viper-f-forward nil
|
||
viper-f-offset nil)
|
||
;; viper-repeat --- set viper-F-char from command-keys
|
||
(setq viper-F-char (if (stringp cmd-representation)
|
||
(viper-seq-last-elt cmd-representation)
|
||
viper-F-char)
|
||
viper-f-char viper-F-char)
|
||
(setq val (- val)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(viper-find-char
|
||
val (if (> (viper-p-val arg) 0) viper-f-char viper-F-char) nil nil)
|
||
(setq val (- val))
|
||
(if com
|
||
(progn
|
||
(setq viper-F-char viper-f-char) ; set new viper-F-char
|
||
(viper-execute-com 'viper-find-char-backward val com)))))
|
||
|
||
(defun viper-goto-char-backward (arg)
|
||
"Go up to char ARG backward on line."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg))
|
||
(cmd-representation (nth 5 viper-d-com)))
|
||
(if (> val 0)
|
||
;; this means that the function was called interactively
|
||
(setq viper-f-char (read-char)
|
||
viper-f-forward nil
|
||
viper-f-offset t)
|
||
;; viper-repeat --- set viper-F-char from command-keys
|
||
(setq viper-F-char (if (stringp cmd-representation)
|
||
(viper-seq-last-elt cmd-representation)
|
||
viper-F-char)
|
||
viper-f-char viper-F-char)
|
||
(setq val (- val)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(viper-find-char
|
||
val (if (> (viper-p-val arg) 0) viper-f-char viper-F-char) nil t)
|
||
(setq val (- val))
|
||
(if com
|
||
(progn
|
||
(setq viper-F-char viper-f-char) ; set new viper-F-char
|
||
(viper-execute-com 'viper-goto-char-backward val com)))))
|
||
|
||
(defun viper-repeat-find (arg)
|
||
"Repeat previous find command."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(viper-deactivate-mark)
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(viper-find-char val viper-f-char viper-f-forward viper-f-offset)
|
||
(if com
|
||
(progn
|
||
(if viper-f-forward (forward-char))
|
||
(viper-execute-com 'viper-repeat-find val com)))))
|
||
|
||
(defun viper-repeat-find-opposite (arg)
|
||
"Repeat previous find command in the opposite direction."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(viper-deactivate-mark)
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(viper-find-char val viper-f-char (not viper-f-forward) viper-f-offset)
|
||
(if com
|
||
(progn
|
||
(if viper-f-forward (forward-char))
|
||
(viper-execute-com 'viper-repeat-find-opposite val com)))))
|
||
|
||
|
||
;; window scrolling etc.
|
||
|
||
(defun viper-window-top (arg)
|
||
"Go to home window line."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getCom arg)))
|
||
(viper-leave-region-active)
|
||
(if com (viper-move-marker-locally 'viper-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 (viper-execute-com 'viper-window-top val com))
|
||
|
||
(if (and (eobp) (bolp) (not (bobp))) (forward-line -1))
|
||
(back-to-indentation)
|
||
))
|
||
|
||
(defun viper-window-middle (arg)
|
||
"Go to middle window line."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getCom arg)))
|
||
(viper-leave-region-active)
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(push-mark nil t)
|
||
(move-to-window-line (+ (/ (1- (window-height)) 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 (viper-execute-com 'viper-window-middle val com))
|
||
|
||
(if (and (eobp) (bolp) (not (bobp))) (forward-line -1))
|
||
(back-to-indentation)
|
||
))
|
||
|
||
(defun viper-window-bottom (arg)
|
||
"Go to last window line."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getCom arg)))
|
||
(viper-leave-region-active)
|
||
(if com (viper-move-marker-locally 'viper-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 (viper-execute-com 'viper-window-bottom val com))
|
||
|
||
(if (and (eobp) (bolp) (not (bobp))) (forward-line -1))
|
||
(back-to-indentation)
|
||
))
|
||
|
||
(defun viper-line-to-top (arg)
|
||
"Put current line on the home line."
|
||
(interactive "p")
|
||
(recenter (1- arg)))
|
||
|
||
(defun viper-line-to-middle (arg)
|
||
"Put current line on the middle line."
|
||
(interactive "p")
|
||
(recenter (+ (1- arg) (/ (1- (window-height)) 2))))
|
||
|
||
(defun viper-line-to-bottom (arg)
|
||
"Put current line on the last line."
|
||
(interactive "p")
|
||
(recenter (- (window-height) (1+ arg))))
|
||
|
||
;; If point is within viper-search-scroll-threshold of window top or bottom,
|
||
;; scroll up or down 1/7 of window height, depending on whether we are at the
|
||
;; bottom or at the top of the window. This function is called by viper-search
|
||
;; (which is called from viper-search-forward/backward/next). If the value of
|
||
;; viper-search-scroll-threshold is negative - don't scroll.
|
||
(defun viper-adjust-window ()
|
||
(let ((win-height (if viper-emacs-p
|
||
(1- (window-height)) ; adjust for modeline
|
||
(window-displayed-height)))
|
||
(pt (point))
|
||
at-top-p at-bottom-p
|
||
min-scroll direction)
|
||
(save-excursion
|
||
(move-to-window-line 0) ; top
|
||
(setq at-top-p
|
||
(<= (count-lines pt (point))
|
||
viper-search-scroll-threshold))
|
||
(move-to-window-line -1) ; bottom
|
||
(setq at-bottom-p
|
||
(<= (count-lines pt (point)) viper-search-scroll-threshold))
|
||
)
|
||
(cond (at-top-p (setq min-scroll (1- viper-search-scroll-threshold)
|
||
direction 1))
|
||
(at-bottom-p (setq min-scroll (1+ viper-search-scroll-threshold)
|
||
direction -1)))
|
||
(if min-scroll
|
||
(recenter
|
||
(* (max min-scroll (/ win-height 7)) direction)))
|
||
))
|
||
|
||
|
||
;; 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 viper-paren-match (arg)
|
||
"Go to the matching parenthesis."
|
||
(interactive "P")
|
||
(viper-leave-region-active)
|
||
(let ((com (viper-getcom arg))
|
||
(parse-sexp-ignore-comments viper-parse-sexp-ignore-comments)
|
||
anchor-point)
|
||
(if (integerp 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 (beg-lim end-lim)
|
||
(if (and (eolp) (not (bolp))) (forward-char -1))
|
||
(if (not (looking-at "[][(){}]"))
|
||
(setq anchor-point (point)))
|
||
(save-excursion
|
||
(beginning-of-line)
|
||
(setq beg-lim (point))
|
||
(end-of-line)
|
||
(setq end-lim (point)))
|
||
(cond ((re-search-forward "[][(){}]" end-lim t)
|
||
(backward-char) )
|
||
((re-search-backward "[][(){}]" beg-lim t))
|
||
(t
|
||
(error "No matching character on line"))))
|
||
(cond ((looking-at "[\(\[{]")
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(forward-sexp 1)
|
||
(if com
|
||
(viper-execute-com 'viper-paren-match nil com)
|
||
(backward-char)))
|
||
(anchor-point
|
||
(if com
|
||
(progn
|
||
(viper-move-marker-locally 'viper-com-point anchor-point)
|
||
(forward-char 1)
|
||
(viper-execute-com 'viper-paren-match nil com)
|
||
)))
|
||
((looking-at "[])}]")
|
||
(forward-char)
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(backward-sexp 1)
|
||
(if com (viper-execute-com 'viper-paren-match nil com)))
|
||
(t (error ""))))))
|
||
|
||
(defun viper-toggle-parse-sexp-ignore-comments ()
|
||
(interactive)
|
||
(setq viper-parse-sexp-ignore-comments
|
||
(not viper-parse-sexp-ignore-comments))
|
||
(princ (format
|
||
"From now on, `%%' will %signore parentheses inside comment fields"
|
||
(if viper-parse-sexp-ignore-comments "" "NOT "))))
|
||
|
||
|
||
;; sentence, paragraph and heading
|
||
|
||
(defun viper-forward-sentence (arg)
|
||
"Forward sentence."
|
||
(interactive "P")
|
||
(or (eq last-command this-command)
|
||
(push-mark nil t))
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(forward-sentence val)
|
||
(if com (viper-execute-com 'viper-forward-sentence nil com))))
|
||
|
||
(defun viper-backward-sentence (arg)
|
||
"Backward sentence."
|
||
(interactive "P")
|
||
(or (eq last-command this-command)
|
||
(push-mark nil t))
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(backward-sentence val)
|
||
(if com (viper-execute-com 'viper-backward-sentence nil com))))
|
||
|
||
(defun viper-forward-paragraph (arg)
|
||
"Forward paragraph."
|
||
(interactive "P")
|
||
(or (eq last-command this-command)
|
||
(push-mark nil t))
|
||
(let ((val (viper-p-val arg))
|
||
;; if you want d} operate on whole lines, change viper-getcom to
|
||
;; viper-getCom below
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(forward-paragraph val)
|
||
(if com
|
||
(progn
|
||
(backward-char 1)
|
||
(viper-execute-com 'viper-forward-paragraph nil com)))))
|
||
|
||
(defun viper-backward-paragraph (arg)
|
||
"Backward paragraph."
|
||
(interactive "P")
|
||
(or (eq last-command this-command)
|
||
(push-mark nil t))
|
||
(let ((val (viper-p-val arg))
|
||
;; if you want d{ operate on whole lines, change viper-getcom to
|
||
;; viper-getCom below
|
||
(com (viper-getcom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(backward-paragraph val)
|
||
(if com
|
||
(progn
|
||
(forward-char 1)
|
||
(viper-execute-com 'viper-backward-paragraph nil com)
|
||
(backward-char 1)))))
|
||
|
||
;; should be mode-specific
|
||
(defun viper-prev-heading (arg)
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getCom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(re-search-backward viper-heading-start nil t val)
|
||
(goto-char (match-beginning 0))
|
||
(if com (viper-execute-com 'viper-prev-heading nil com))))
|
||
|
||
(defun viper-heading-end (arg)
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getCom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(re-search-forward viper-heading-end nil t val)
|
||
(goto-char (match-beginning 0))
|
||
(if com (viper-execute-com 'viper-heading-end nil com))))
|
||
|
||
(defun viper-next-heading (arg)
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getCom arg)))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(end-of-line)
|
||
(re-search-forward viper-heading-start nil t val)
|
||
(goto-char (match-beginning 0))
|
||
(if com (viper-execute-com 'viper-next-heading nil com))))
|
||
|
||
|
||
;; scrolling
|
||
|
||
(defun viper-scroll-screen (arg)
|
||
"Scroll to next screen."
|
||
(interactive "p")
|
||
(condition-case nil
|
||
(if (> arg 0)
|
||
(while (> arg 0)
|
||
(scroll-up)
|
||
(setq arg (1- arg)))
|
||
(while (> 0 arg)
|
||
(scroll-down)
|
||
(setq arg (1+ arg))))
|
||
(error (beep 1)
|
||
(if (> arg 0)
|
||
(progn
|
||
(message "End of buffer")
|
||
(goto-char (point-max)))
|
||
(message "Beginning of buffer")
|
||
(goto-char (point-min))))
|
||
))
|
||
|
||
(defun viper-scroll-screen-back (arg)
|
||
"Scroll to previous screen."
|
||
(interactive "p")
|
||
(viper-scroll-screen (- arg)))
|
||
|
||
(defun viper-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 viper-scroll-down-one (arg)
|
||
"Scroll up one line."
|
||
(interactive "p")
|
||
(scroll-down arg))
|
||
|
||
(defun viper-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 viper-scroll-up-one (arg)
|
||
"Scroll down one line."
|
||
(interactive "p")
|
||
(scroll-up arg))
|
||
|
||
|
||
;; searching
|
||
|
||
(defun viper-if-string (prompt)
|
||
(if (memq viper-intermediate-command
|
||
'(viper-command-argument viper-digit-argument viper-repeat))
|
||
(setq viper-this-command-keys (this-command-keys)))
|
||
(let ((s (viper-read-string-with-history
|
||
prompt
|
||
nil ; no initial
|
||
'viper-search-history
|
||
(car viper-search-history))))
|
||
(if (not (string= s ""))
|
||
(setq viper-s-string s))))
|
||
|
||
|
||
(defun viper-toggle-search-style (arg)
|
||
"Toggle the value of viper-case-fold-search/viper-re-search.
|
||
Without prefix argument, will ask which search style to toggle. With prefix
|
||
arg 1,toggles viper-case-fold-search; with arg 2 toggles viper-re-search.
|
||
|
||
Although this function is bound to \\[viper-toggle-search-style], the most
|
||
convenient way to use it is to bind `//' to the macro
|
||
`1 M-x viper-toggle-search-style' and `///' to
|
||
`2 M-x viper-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 viper-case-fold-search
|
||
"case-insensitive" "case-sensitive")
|
||
(if viper-case-fold-search
|
||
"case-sensitive"
|
||
"case-insensitive")))))
|
||
(setq viper-case-fold-search (null viper-case-fold-search))
|
||
(if viper-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 viper-re-search
|
||
"regexp-search" "vanilla-search")
|
||
(if viper-re-search
|
||
"vanilla-search"
|
||
"regexp-search")))))
|
||
(setq viper-re-search (null viper-re-search))
|
||
(if viper-re-search
|
||
(setq msg "Search becomes regexp-style")
|
||
(setq msg "Search becomes vanilla-style")))
|
||
(t
|
||
(setq msg "Search style remains unchanged")))
|
||
(princ msg t)))
|
||
|
||
(defun viper-set-searchstyle-toggling-macros (unset)
|
||
"Set the macros for toggling the search style in Viper's vi-state.
|
||
The macro that toggles case sensitivity is bound to `//', and the one that
|
||
toggles regexp search is bound to `///'.
|
||
With a prefix argument, this function unsets the macros. "
|
||
(interactive "P")
|
||
(or noninteractive
|
||
(if (not unset)
|
||
(progn
|
||
;; toggle case sensitivity in search
|
||
(viper-record-kbd-macro
|
||
"//" 'vi-state
|
||
[1 (meta x) v i p e r - t o g g l e - s e a r c h - s t y l e return]
|
||
't)
|
||
;; toggle regexp/vanila search
|
||
(viper-record-kbd-macro
|
||
"///" 'vi-state
|
||
[2 (meta x) v i p e r - t o g g l e - s e a r c h - s t y l e return]
|
||
't)
|
||
(if (interactive-p)
|
||
(message
|
||
"// and /// now toggle case-sensitivity and regexp search")))
|
||
(viper-unrecord-kbd-macro "//" 'vi-state)
|
||
(sit-for 2)
|
||
(viper-unrecord-kbd-macro "///" 'vi-state))))
|
||
|
||
|
||
(defun viper-set-parsing-style-toggling-macro (unset)
|
||
"Set `%%%' to be a macro that toggles whether comment fields should be parsed for matching parentheses.
|
||
This is used in conjunction with the `%' command.
|
||
|
||
With a prefix argument, unsets the macro."
|
||
(interactive "P")
|
||
(or noninteractive
|
||
(if (not unset)
|
||
(progn
|
||
;; Make %%% toggle parsing comments for matching parentheses
|
||
(viper-record-kbd-macro
|
||
"%%%" 'vi-state
|
||
[(meta x) v i p e r - t o g g l e - p a r s e - s e x p - i g n o r e - c o m m e n t s return]
|
||
't)
|
||
(if (interactive-p)
|
||
(message
|
||
"%%%%%% now toggles whether comments should be parsed for matching parentheses")))
|
||
(viper-unrecord-kbd-macro "%%%" 'vi-state))))
|
||
|
||
|
||
(defun viper-set-emacs-state-searchstyle-macros (unset &optional arg-majormode)
|
||
"Set the macros for toggling the search style in Viper's emacs-state.
|
||
The macro that toggles case sensitivity is bound to `//', and the one that
|
||
toggles regexp search is bound to `///'.
|
||
With a prefix argument, this function unsets the macros.
|
||
If the optional prefix argument is non-nil and specifies a valid major mode,
|
||
this sets the macros only in the macros in that major mode. Otherwise,
|
||
the macros are set in the current major mode.
|
||
\(When unsetting the macros, the second argument has no effect.\)"
|
||
(interactive "P")
|
||
(or noninteractive
|
||
(if (not unset)
|
||
(progn
|
||
;; toggle case sensitivity in search
|
||
(viper-record-kbd-macro
|
||
"//" 'emacs-state
|
||
[1 (meta x) v i p e r - t o g g l e - s e a r c h - s t y l e return]
|
||
(or arg-majormode major-mode))
|
||
;; toggle regexp/vanila search
|
||
(viper-record-kbd-macro
|
||
"///" 'emacs-state
|
||
[2 (meta x) v i p e r - t o g g l e - s e a r c h - s t y l e return]
|
||
(or arg-majormode major-mode))
|
||
(if (interactive-p)
|
||
(message
|
||
"// and /// now toggle case-sensitivity and regexp search.")))
|
||
(viper-unrecord-kbd-macro "//" 'emacs-state)
|
||
(sit-for 2)
|
||
(viper-unrecord-kbd-macro "///" 'emacs-state))))
|
||
|
||
|
||
(defun viper-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 (viper-P-val arg))
|
||
(com (viper-getcom arg))
|
||
(old-str viper-s-string))
|
||
(setq viper-s-forward t)
|
||
(viper-if-string "/")
|
||
;; this is not used at present, but may be used later
|
||
(if (or (not (equal old-str viper-s-string))
|
||
(not (markerp viper-local-search-start-marker))
|
||
(not (marker-buffer viper-local-search-start-marker)))
|
||
(setq viper-local-search-start-marker (point-marker)))
|
||
(viper-search viper-s-string t val)
|
||
(if com
|
||
(progn
|
||
(viper-move-marker-locally 'viper-com-point (mark t))
|
||
(viper-execute-com 'viper-search-next val com)))))
|
||
|
||
(defun viper-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 (viper-P-val arg))
|
||
(com (viper-getcom arg))
|
||
(old-str viper-s-string))
|
||
(setq viper-s-forward nil)
|
||
(viper-if-string "?")
|
||
;; this is not used at present, but may be used later
|
||
(if (or (not (equal old-str viper-s-string))
|
||
(not (markerp viper-local-search-start-marker))
|
||
(not (marker-buffer viper-local-search-start-marker)))
|
||
(setq viper-local-search-start-marker (point-marker)))
|
||
(viper-search viper-s-string nil val)
|
||
(if com
|
||
(progn
|
||
(viper-move-marker-locally 'viper-com-point (mark t))
|
||
(viper-execute-com 'viper-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 viper-search (string forward arg
|
||
&optional no-offset init-point fail-if-not-found)
|
||
(if (not (equal string ""))
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg))
|
||
(offset (not no-offset))
|
||
(case-fold-search viper-case-fold-search)
|
||
(start-point (or init-point (point))))
|
||
(viper-deactivate-mark)
|
||
(if forward
|
||
(condition-case nil
|
||
(progn
|
||
(if offset (viper-forward-char-carefully))
|
||
(if viper-re-search
|
||
(progn
|
||
(re-search-forward string nil nil val)
|
||
(re-search-backward string))
|
||
(search-forward string nil nil val)
|
||
(search-backward string))
|
||
(if (not (equal start-point (point)))
|
||
(push-mark start-point t)))
|
||
(search-failed
|
||
(if (and (not fail-if-not-found) viper-search-wrap-around-t)
|
||
(progn
|
||
(message "Search wrapped around BOTTOM of buffer")
|
||
(goto-char (point-min))
|
||
(viper-search string forward (cons 1 com) t start-point 'fail)
|
||
;; don't wait in macros
|
||
(or executing-kbd-macro
|
||
(memq viper-intermediate-command
|
||
'(viper-repeat
|
||
viper-digit-argument
|
||
viper-command-argument))
|
||
(sit-for 2))
|
||
;; delete the wrap-around message
|
||
(message "")
|
||
)
|
||
(goto-char start-point)
|
||
(error "`%s': %s not found"
|
||
string
|
||
(if viper-re-search "Pattern" "String"))
|
||
)))
|
||
;; backward
|
||
(condition-case nil
|
||
(progn
|
||
(if viper-re-search
|
||
(re-search-backward string nil nil val)
|
||
(search-backward string nil nil val))
|
||
(if (not (equal start-point (point)))
|
||
(push-mark start-point t)))
|
||
(search-failed
|
||
(if (and (not fail-if-not-found) viper-search-wrap-around-t)
|
||
(progn
|
||
(message "Search wrapped around TOP of buffer")
|
||
(goto-char (point-max))
|
||
(viper-search string forward (cons 1 com) t start-point 'fail)
|
||
;; don't wait in macros
|
||
(or executing-kbd-macro
|
||
(memq viper-intermediate-command
|
||
'(viper-repeat
|
||
viper-digit-argument
|
||
viper-command-argument))
|
||
(sit-for 2))
|
||
;; delete the wrap-around message
|
||
(message "")
|
||
)
|
||
(goto-char start-point)
|
||
(error "`%s': %s not found"
|
||
string
|
||
(if viper-re-search "Pattern" "String"))
|
||
))))
|
||
;; pull up or down if at top/bottom of window
|
||
(viper-adjust-window)
|
||
;; highlight the result of search
|
||
;; don't wait and don't highlight in macros
|
||
(or executing-kbd-macro
|
||
(memq viper-intermediate-command
|
||
'(viper-repeat viper-digit-argument viper-command-argument))
|
||
(viper-flash-search-pattern))
|
||
)))
|
||
|
||
(defun viper-search-next (arg)
|
||
"Repeat previous search."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if (null viper-s-string) (error viper-NoPrevSearch))
|
||
(viper-search viper-s-string viper-s-forward arg)
|
||
(if com
|
||
(progn
|
||
(viper-move-marker-locally 'viper-com-point (mark t))
|
||
(viper-execute-com 'viper-search-next val com)))))
|
||
|
||
(defun viper-search-Next (arg)
|
||
"Repeat previous search in the reverse direction."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(com (viper-getcom arg)))
|
||
(if (null viper-s-string) (error viper-NoPrevSearch))
|
||
(viper-search viper-s-string (not viper-s-forward) arg)
|
||
(if com
|
||
(progn
|
||
(viper-move-marker-locally 'viper-com-point (mark t))
|
||
(viper-execute-com 'viper-search-Next val com)))))
|
||
|
||
|
||
;; Search contents of buffer defined by one of Viper's motion commands.
|
||
;; Repeatable via `n' and `N'.
|
||
(defun viper-buffer-search-enable (&optional c)
|
||
(cond (c (setq viper-buffer-search-char c))
|
||
((null viper-buffer-search-char)
|
||
(setq viper-buffer-search-char ?g)))
|
||
(define-key viper-vi-basic-map
|
||
(cond ((viper-characterp viper-buffer-search-char)
|
||
(char-to-string viper-buffer-search-char))
|
||
(t (error "viper-buffer-search-char: wrong value type, %s"
|
||
viper-buffer-search-char)))
|
||
'viper-command-argument)
|
||
(aset viper-exec-array viper-buffer-search-char 'viper-exec-buffer-search)
|
||
(setq viper-prefix-commands
|
||
(cons viper-buffer-search-char viper-prefix-commands)))
|
||
|
||
;; This is a Viper wraper for isearch-forward.
|
||
(defun viper-isearch-forward (arg)
|
||
"Do incremental search forward."
|
||
(interactive "P")
|
||
;; emacs bug workaround
|
||
(if (listp arg) (setq arg (car arg)))
|
||
(viper-exec-form-in-emacs (list 'isearch-forward arg)))
|
||
|
||
;; This is a Viper wraper for isearch-backward."
|
||
(defun viper-isearch-backward (arg)
|
||
"Do incremental search backward."
|
||
(interactive "P")
|
||
;; emacs bug workaround
|
||
(if (listp arg) (setq arg (car arg)))
|
||
(viper-exec-form-in-emacs (list 'isearch-backward arg)))
|
||
|
||
|
||
;; visiting and killing files, buffers
|
||
|
||
(defun viper-switch-to-buffer ()
|
||
"Switch to buffer in the current window."
|
||
(interactive)
|
||
(let ((other-buffer (other-buffer (current-buffer)))
|
||
buffer)
|
||
(setq buffer
|
||
(funcall viper-read-buffer-function
|
||
"Switch to buffer in this window: " other-buffer))
|
||
(switch-to-buffer buffer)))
|
||
|
||
(defun viper-switch-to-buffer-other-window ()
|
||
"Switch to buffer in another window."
|
||
(interactive)
|
||
(let ((other-buffer (other-buffer (current-buffer)))
|
||
buffer)
|
||
(setq buffer
|
||
(funcall viper-read-buffer-function
|
||
"Switch to buffer in another window: " other-buffer))
|
||
(switch-to-buffer-other-window buffer)))
|
||
|
||
(defun viper-kill-buffer ()
|
||
"Kill a buffer."
|
||
(interactive)
|
||
(let (buffer buffer-name)
|
||
(setq buffer-name
|
||
(funcall viper-read-buffer-function
|
||
(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"))))
|
||
|
||
|
||
|
||
;; yank and pop
|
||
|
||
(defsubst viper-yank (text)
|
||
"Yank TEXT silently. This works correctly with Emacs's yank-pop command."
|
||
(insert text)
|
||
(setq this-command 'yank))
|
||
|
||
(defun viper-put-back (arg)
|
||
"Put back after point/below line."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(text (if viper-use-register
|
||
(cond ((viper-valid-register viper-use-register '(digit))
|
||
(current-kill
|
||
(- viper-use-register ?1) 'do-not-rotate))
|
||
((viper-valid-register viper-use-register)
|
||
(get-register (downcase viper-use-register)))
|
||
(t (error viper-InvalidRegister viper-use-register)))
|
||
(current-kill 0)))
|
||
sv-point chars-inserted lines-inserted)
|
||
(if (null text)
|
||
(if viper-use-register
|
||
(let ((reg viper-use-register))
|
||
(setq viper-use-register nil)
|
||
(error viper-EmptyRegister reg))
|
||
(error "")))
|
||
(setq viper-use-register nil)
|
||
(if (viper-end-with-a-newline-p text)
|
||
(progn
|
||
(end-of-line)
|
||
(if (eobp)
|
||
(insert "\n")
|
||
(forward-line 1))
|
||
(beginning-of-line))
|
||
(if (not (eolp)) (viper-forward-char-carefully)))
|
||
(set-marker (viper-mark-marker) (point) (current-buffer))
|
||
(viper-set-destructive-command
|
||
(list 'viper-put-back val nil viper-use-register nil nil))
|
||
(setq sv-point (point))
|
||
(viper-loop val (viper-yank text))
|
||
(setq chars-inserted (abs (- (point) sv-point))
|
||
lines-inserted (abs (count-lines (point) sv-point)))
|
||
(if (or (> chars-inserted viper-change-notification-threshold)
|
||
(> lines-inserted viper-change-notification-threshold))
|
||
(message "Inserted %d character(s), %d line(s)"
|
||
chars-inserted lines-inserted)))
|
||
;; 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 (viper-same-line (point) (mark))
|
||
(or (= (point) (mark)) (viper-backward-char-carefully))
|
||
(exchange-point-and-mark)
|
||
(if (bolp)
|
||
(back-to-indentation)))
|
||
(viper-deactivate-mark))
|
||
|
||
(defun viper-Put-back (arg)
|
||
"Put back at point/above line."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
(text (if viper-use-register
|
||
(cond ((viper-valid-register viper-use-register '(digit))
|
||
(current-kill
|
||
(- viper-use-register ?1) 'do-not-rotate))
|
||
((viper-valid-register viper-use-register)
|
||
(get-register (downcase viper-use-register)))
|
||
(t (error viper-InvalidRegister viper-use-register)))
|
||
(current-kill 0)))
|
||
sv-point chars-inserted lines-inserted)
|
||
(if (null text)
|
||
(if viper-use-register
|
||
(let ((reg viper-use-register))
|
||
(setq viper-use-register nil)
|
||
(error viper-EmptyRegister reg))
|
||
(error "")))
|
||
(setq viper-use-register nil)
|
||
(if (viper-end-with-a-newline-p text) (beginning-of-line))
|
||
(viper-set-destructive-command
|
||
(list 'viper-Put-back val nil viper-use-register nil nil))
|
||
(set-marker (viper-mark-marker) (point) (current-buffer))
|
||
(setq sv-point (point))
|
||
(viper-loop val (viper-yank text))
|
||
(setq chars-inserted (abs (- (point) sv-point))
|
||
lines-inserted (abs (count-lines (point) sv-point)))
|
||
(if (or (> chars-inserted viper-change-notification-threshold)
|
||
(> lines-inserted viper-change-notification-threshold))
|
||
(message "Inserted %d character(s), %d line(s)"
|
||
chars-inserted lines-inserted)))
|
||
;; 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 (viper-same-line (point) (mark))
|
||
(or (= (point) (mark)) (viper-backward-char-carefully))
|
||
(exchange-point-and-mark)
|
||
(if (bolp)
|
||
(back-to-indentation)))
|
||
(viper-deactivate-mark))
|
||
|
||
|
||
;; Copy region to kill-ring.
|
||
;; If BEG and END do not belong to the same buffer, copy empty region.
|
||
(defun viper-copy-region-as-kill (beg end)
|
||
(condition-case nil
|
||
(copy-region-as-kill beg end)
|
||
(error (copy-region-as-kill beg beg))))
|
||
|
||
|
||
(defun viper-delete-char (arg)
|
||
"Delete next character."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
end-del-pos)
|
||
(viper-set-destructive-command
|
||
(list 'viper-delete-char val nil nil nil nil))
|
||
(if (and viper-ex-style-editing
|
||
(> val (viper-chars-in-region (point) (viper-line-pos 'end))))
|
||
(setq val (viper-chars-in-region (point) (viper-line-pos 'end))))
|
||
(if (and viper-ex-style-motion (eolp))
|
||
(if (bolp) (error "") (setq val 0))) ; not bol---simply back 1 ch
|
||
(save-excursion
|
||
(viper-forward-char-carefully val)
|
||
(setq end-del-pos (point)))
|
||
(if viper-use-register
|
||
(progn
|
||
(cond ((viper-valid-register viper-use-register '((Letter)))
|
||
(viper-append-to-register
|
||
(downcase viper-use-register) (point) end-del-pos))
|
||
((viper-valid-register viper-use-register)
|
||
(copy-to-register
|
||
viper-use-register (point) end-del-pos nil))
|
||
(t (error viper-InvalidRegister viper-use-register)))
|
||
(setq viper-use-register nil)))
|
||
|
||
(delete-char val t)
|
||
(if viper-ex-style-motion
|
||
(if (and (eolp) (not (bolp))) (backward-char 1)))
|
||
))
|
||
|
||
(defun viper-delete-backward-char (arg)
|
||
"Delete previous character. On reaching beginning of line, stop and beep."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg))
|
||
end-del-pos)
|
||
(viper-set-destructive-command
|
||
(list 'viper-delete-backward-char val nil nil nil nil))
|
||
(if (and
|
||
viper-ex-style-editing
|
||
(> val (viper-chars-in-region (viper-line-pos 'start) (point))))
|
||
(setq val (viper-chars-in-region (viper-line-pos 'start) (point))))
|
||
(save-excursion
|
||
(viper-backward-char-carefully val)
|
||
(setq end-del-pos (point)))
|
||
(if viper-use-register
|
||
(progn
|
||
(cond ((viper-valid-register viper-use-register '(Letter))
|
||
(viper-append-to-register
|
||
(downcase viper-use-register) end-del-pos (point)))
|
||
((viper-valid-register viper-use-register)
|
||
(copy-to-register
|
||
viper-use-register end-del-pos (point) nil))
|
||
(t (error viper-InvalidRegister viper-use-register)))
|
||
(setq viper-use-register nil)))
|
||
(if (and (bolp) viper-ex-style-editing)
|
||
(ding))
|
||
(delete-backward-char val t)))
|
||
|
||
|
||
(defun viper-del-backward-char-in-insert ()
|
||
"Delete 1 char backwards while in insert mode."
|
||
(interactive)
|
||
(if (and viper-ex-style-editing (bolp))
|
||
(beep 1)
|
||
(delete-backward-char 1 t)))
|
||
|
||
|
||
(defun viper-del-backward-char-in-replace ()
|
||
"Delete one character in replace mode.
|
||
If `viper-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 `viper-ex-style-editing', if t, doesn't let the
|
||
cursor move past the beginning of line."
|
||
(interactive)
|
||
(cond (viper-delete-backwards-in-replace
|
||
(cond ((not (bolp))
|
||
(delete-backward-char 1 t))
|
||
(viper-ex-style-editing
|
||
(beep 1))
|
||
((bobp)
|
||
(beep 1))
|
||
(t
|
||
(delete-backward-char 1 t))))
|
||
(viper-ex-style-editing
|
||
(if (bolp)
|
||
(beep 1)
|
||
(backward-char 1)))
|
||
(t
|
||
(backward-char 1))))
|
||
|
||
|
||
|
||
;; join lines.
|
||
|
||
(defun viper-join-lines (arg)
|
||
"Join this line to next, if ARG is nil. Otherwise, join ARG lines."
|
||
(interactive "*P")
|
||
(let ((val (viper-P-val arg)))
|
||
(viper-set-destructive-command
|
||
(list 'viper-join-lines val nil nil nil nil))
|
||
(viper-loop (if (null val) 1 (1- val))
|
||
(end-of-line)
|
||
(if (not (eobp))
|
||
(progn
|
||
(forward-line 1)
|
||
(delete-region (point) (1- (point)))
|
||
(fixup-whitespace)
|
||
;; fixup-whitespace sometimes does not leave space
|
||
;; between objects, so we insert it as in Vi
|
||
(or (looking-at " ")
|
||
(insert " ")
|
||
(backward-char 1))
|
||
)))))
|
||
|
||
|
||
;; Replace state
|
||
|
||
(defun viper-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))
|
||
|
||
(viper-set-complex-command-for-undo)
|
||
(if viper-use-register
|
||
(progn
|
||
(copy-to-register viper-use-register beg end nil)
|
||
(setq viper-use-register nil)))
|
||
(viper-set-replace-overlay beg end)
|
||
(setq last-command nil) ; separate repl text from prev kills
|
||
|
||
(if (= (viper-replace-start) (point-max))
|
||
(error "End of buffer"))
|
||
|
||
(setq viper-last-replace-region
|
||
(buffer-substring (viper-replace-start)
|
||
(viper-replace-end)))
|
||
|
||
;; protect against error while inserting "@" and other disasters
|
||
;; (e.g., read-only buff)
|
||
(condition-case conds
|
||
(if (or viper-allow-multiline-replace-regions
|
||
(viper-same-line (viper-replace-start)
|
||
(viper-replace-end)))
|
||
(progn
|
||
;; tabs cause problems in replace, so untabify
|
||
(goto-char (viper-replace-end))
|
||
(insert-before-markers "@") ; put placeholder after the TAB
|
||
(untabify (viper-replace-start) (point))
|
||
;; del @, don't put on kill ring
|
||
(delete-backward-char 1)
|
||
|
||
(viper-set-replace-overlay-glyphs
|
||
viper-replace-region-start-delimiter
|
||
viper-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.
|
||
(viper-move-replace-overlay (viper-replace-start) (point))
|
||
(goto-char (viper-replace-start))
|
||
(viper-change-state-to-replace t))
|
||
(kill-region (viper-replace-start)
|
||
(viper-replace-end))
|
||
(viper-hide-replace-overlay)
|
||
(viper-change-state-to-insert))
|
||
(error ;; make sure that the overlay doesn't stay.
|
||
;; go back to the original point
|
||
(goto-char (viper-replace-start))
|
||
(viper-hide-replace-overlay)
|
||
(viper-message-conditions conds))))
|
||
|
||
|
||
(defun viper-change-subr (beg end)
|
||
;; beg is sometimes (mark t), which may be nil
|
||
(or beg (setq beg end))
|
||
(if viper-use-register
|
||
(progn
|
||
(copy-to-register viper-use-register beg end nil)
|
||
(setq viper-use-register nil)))
|
||
(kill-region beg end)
|
||
(setq this-command 'viper-change)
|
||
(viper-yank-last-insertion))
|
||
|
||
(defun viper-toggle-case (arg)
|
||
"Toggle character case."
|
||
(interactive "P")
|
||
(let ((val (viper-p-val arg)) (c))
|
||
(viper-set-destructive-command
|
||
(list 'viper-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 viper-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 (viper-read-string-with-history
|
||
(if viper-re-query-replace "Query replace regexp: "
|
||
"Query replace: ")
|
||
nil ; no initial
|
||
'viper-replace1-history
|
||
(car viper-replace1-history) ; default
|
||
))
|
||
(if (string= str "")
|
||
(progn
|
||
(setq viper-re-query-replace (not viper-re-query-replace))
|
||
(message "Query replace mode changed to %s"
|
||
(if viper-re-query-replace "regexp replace"
|
||
"string replace")))
|
||
(if viper-re-query-replace
|
||
(query-replace-regexp
|
||
str
|
||
(viper-read-string-with-history
|
||
(format "Query replace regexp `%s' with: " str)
|
||
nil ; no initial
|
||
'viper-replace1-history
|
||
(car viper-replace1-history) ; default
|
||
))
|
||
(query-replace
|
||
str
|
||
(viper-read-string-with-history
|
||
(format "Query replace `%s' with: " str)
|
||
nil ; no initial
|
||
'viper-replace1-history
|
||
(car viper-replace1-history) ; default
|
||
))))))
|
||
|
||
|
||
;; marking
|
||
|
||
(defun viper-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 viper-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 viper-mark-point ()
|
||
"Set mark at point of buffer."
|
||
(interactive)
|
||
(let ((char (read-char)))
|
||
(cond ((and (<= ?a char) (<= char ?z))
|
||
(point-to-register (1+ (- char ?a))))
|
||
((= char ?<) (viper-mark-beginning-of-buffer))
|
||
((= char ?>) (viper-mark-end-of-buffer))
|
||
((= char ?.) (viper-set-mark-if-necessary))
|
||
((= char ?,) (viper-cycle-through-mark-ring))
|
||
((= char ?^) (push-mark viper-saved-mark t t))
|
||
((= 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 viper-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 'viper-cycle-through-mark-ring)
|
||
()
|
||
;; save current mark if the first iteration
|
||
(setq mark-ring (delete (viper-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 (viper-mark-marker) mark-ring))
|
||
(push-mark sv-pt t)
|
||
(viper-deactivate-mark)
|
||
(setq this-command 'viper-cycle-through-mark-ring)
|
||
))
|
||
|
||
|
||
(defun viper-goto-mark (arg)
|
||
"Go to mark."
|
||
(interactive "P")
|
||
(let ((char (read-char))
|
||
(com (viper-getcom arg)))
|
||
(viper-goto-mark-subr char com nil)))
|
||
|
||
(defun viper-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 (viper-getCom arg)))
|
||
(viper-goto-mark-subr char com t)))
|
||
|
||
(defun viper-goto-mark-subr (char com skip-white)
|
||
(if (eobp)
|
||
(if (bobp)
|
||
(error "Empty buffer")
|
||
(backward-char 1)))
|
||
(cond ((viper-valid-register char '(letter))
|
||
(let* ((buff (current-buffer))
|
||
(reg (1+ (- char ?a)))
|
||
(text-marker (get-register reg)))
|
||
;; If marker points to file that had markers set (and those markers
|
||
;; were saved (as e.g., in session.el), then restore those markers
|
||
(if (and (consp text-marker)
|
||
(eq (car text-marker) 'file-query)
|
||
(or (find-buffer-visiting (nth 1 text-marker))
|
||
(y-or-n-p (format "Visit file %s again? "
|
||
(nth 1 text-marker)))))
|
||
(save-excursion
|
||
(find-file (nth 1 text-marker))
|
||
(when (and (<= (nth 2 text-marker) (point-max))
|
||
(<= (point-min) (nth 2 text-marker)))
|
||
(setq text-marker (copy-marker (nth 2 text-marker)))
|
||
(set-register reg text-marker))))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(if (not (viper-valid-marker text-marker))
|
||
(error viper-EmptyTextmarker char))
|
||
(if (and (viper-same-line (point) viper-last-jump)
|
||
(= (point) viper-last-jump-ignore))
|
||
(push-mark viper-last-jump t)
|
||
(push-mark nil t)) ; no msg
|
||
(viper-register-to-point reg)
|
||
(setq viper-last-jump (point-marker))
|
||
(cond (skip-white
|
||
(back-to-indentation)
|
||
(setq viper-last-jump-ignore (point))))
|
||
(if com
|
||
(if (equal buff (current-buffer))
|
||
(viper-execute-com (if skip-white
|
||
'viper-goto-mark-and-skip-white
|
||
'viper-goto-mark)
|
||
nil com)
|
||
(switch-to-buffer buff)
|
||
(goto-char viper-com-point)
|
||
(viper-change-state-to-vi)
|
||
(error "")))))
|
||
((and (not skip-white) (= char ?`))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(if (and (viper-same-line (point) viper-last-jump)
|
||
(= (point) viper-last-jump-ignore))
|
||
(goto-char viper-last-jump))
|
||
(if (null (mark t)) (error "Mark is not set in this buffer"))
|
||
(if (= (point) (mark t)) (pop-mark))
|
||
(exchange-point-and-mark)
|
||
(setq viper-last-jump (point-marker)
|
||
viper-last-jump-ignore 0)
|
||
(if com (viper-execute-com 'viper-goto-mark nil com)))
|
||
((and skip-white (= char ?'))
|
||
(if com (viper-move-marker-locally 'viper-com-point (point)))
|
||
(if (and (viper-same-line (point) viper-last-jump)
|
||
(= (point) viper-last-jump-ignore))
|
||
(goto-char viper-last-jump))
|
||
(if (= (point) (mark t)) (pop-mark))
|
||
(exchange-point-and-mark)
|
||
(setq viper-last-jump (point))
|
||
(back-to-indentation)
|
||
(setq viper-last-jump-ignore (point))
|
||
(if com (viper-execute-com 'viper-goto-mark-and-skip-white nil com)))
|
||
(t (error viper-InvalidTextmarker char))))
|
||
|
||
(defun viper-insert-tab ()
|
||
(interactive)
|
||
(insert-tab))
|
||
|
||
(defun viper-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 viper-looking-back (str)
|
||
(and (save-excursion (re-search-backward str nil t))
|
||
(= (point) (match-end 0))))
|
||
|
||
|
||
(defun viper-forward-indent ()
|
||
"Indent forward -- `C-t' in Vi."
|
||
(interactive)
|
||
(setq viper-cted t)
|
||
(indent-to (+ (current-column) viper-shift-width)))
|
||
|
||
(defun viper-backward-indent ()
|
||
"Backtab, C-d in VI"
|
||
(interactive)
|
||
(if viper-cted
|
||
(let ((p (point)) (c (current-column)) bol (indent t))
|
||
(if (viper-looking-back "[0^]")
|
||
(progn
|
||
(if (eq ?^ (preceding-char))
|
||
(setq viper-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 viper-shift-width)))
|
||
(if (or (bolp) (viper-looking-back "[^ \t]"))
|
||
(setq viper-cted nil)))))
|
||
|
||
(defun viper-autoindent ()
|
||
"Auto Indentation, Vi-style."
|
||
(interactive)
|
||
(let ((col (current-indentation)))
|
||
(if abbrev-mode (expand-abbrev))
|
||
(if viper-preserve-indent
|
||
(setq viper-preserve-indent nil)
|
||
(setq viper-current-indent col))
|
||
;; don't leave whitespace lines around
|
||
(if (memq last-command
|
||
'(viper-autoindent
|
||
viper-open-line viper-Open-line
|
||
viper-replace-state-exit-cmd))
|
||
(indent-to-left-margin))
|
||
;; use \n instead of newline, or else <Return> will move the insert point
|
||
;;(newline 1)
|
||
(insert "\n")
|
||
(if viper-auto-indent
|
||
(progn
|
||
(setq viper-cted t)
|
||
(if (and viper-electric-mode
|
||
(not
|
||
(memq major-mode '(fundamental-mode
|
||
text-mode
|
||
paragraph-indent-text-mode ))))
|
||
(indent-according-to-mode)
|
||
(indent-to viper-current-indent))
|
||
))
|
||
))
|
||
|
||
|
||
;; Viewing registers
|
||
|
||
(defun viper-ket-function (arg)
|
||
"Function called by \], the ket. View registers and call \]\]."
|
||
(interactive "P")
|
||
(let ((reg (read-char)))
|
||
(cond ((viper-valid-register reg '(letter Letter))
|
||
(view-register (downcase reg)))
|
||
((viper-valid-register reg '(digit))
|
||
(let ((text (current-kill (- reg ?1) 'do-not-rotate)))
|
||
(with-output-to-temp-buffer " *viper-info*"
|
||
(princ (format "Register %c contains the string:\n" reg))
|
||
(princ text))
|
||
))
|
||
((= ?\] reg)
|
||
(viper-next-heading arg))
|
||
(t (error
|
||
viper-InvalidRegister reg)))))
|
||
|
||
(defun viper-brac-function (arg)
|
||
"Function called by \[, the brac. View textmarkers and call \[\["
|
||
(interactive "P")
|
||
(let ((reg (read-char)))
|
||
(cond ((= ?\[ reg)
|
||
(viper-prev-heading arg))
|
||
((= ?\] reg)
|
||
(viper-heading-end arg))
|
||
((viper-valid-register reg '(letter))
|
||
(let* ((val (get-register (1+ (- reg ?a))))
|
||
(buf (if (not (markerp val))
|
||
(error viper-EmptyTextmarker reg)
|
||
(marker-buffer val)))
|
||
(pos (marker-position val))
|
||
line-no text (s pos) (e pos))
|
||
(with-output-to-temp-buffer " *viper-info*"
|
||
(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)))))
|
||
(princ
|
||
(format
|
||
"Textmarker `%c' is in buffer `%s' at line %d.\n"
|
||
reg (buffer-name buf) line-no))
|
||
(princ (format "Here is some text around %c:\n\n %s"
|
||
reg text)))
|
||
(princ (format viper-EmptyTextmarker reg))))
|
||
))
|
||
(t (error viper-InvalidTextmarker reg)))))
|
||
|
||
|
||
|
||
;; commands in insertion mode
|
||
|
||
(defun viper-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 viper-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 (natnump viper-expert-level)) (setq viper-expert-level 0))
|
||
|
||
(save-window-excursion
|
||
(delete-other-windows)
|
||
;; if 0 < viper-expert-level < viper-max-expert-level
|
||
;; & dont-change-unless = t -- use it; else ask
|
||
(viper-ask-level dont-change-unless))
|
||
|
||
(setq viper-always t
|
||
viper-ex-style-motion t
|
||
viper-ex-style-editing t
|
||
viper-want-ctl-h-help nil)
|
||
|
||
(cond ((eq viper-expert-level 1) ; novice or beginner
|
||
(global-set-key ; in emacs-state
|
||
viper-toggle-key
|
||
(if (viper-window-display-p) 'viper-iconify 'suspend-emacs))
|
||
(setq viper-no-multiple-ESC t
|
||
viper-re-search t
|
||
viper-vi-style-in-minibuffer t
|
||
viper-search-wrap-around-t t
|
||
viper-electric-mode nil
|
||
viper-want-emacs-keys-in-vi nil
|
||
viper-want-emacs-keys-in-insert nil))
|
||
|
||
((and (> viper-expert-level 1) (< viper-expert-level 5))
|
||
;; intermediate to guru
|
||
(setq viper-no-multiple-ESC (if (viper-window-display-p)
|
||
t 'twice)
|
||
viper-electric-mode t
|
||
viper-want-emacs-keys-in-vi t
|
||
viper-want-emacs-keys-in-insert (> viper-expert-level 2))
|
||
|
||
(if (eq viper-expert-level 4) ; respect user's ex-style motion
|
||
; and viper-no-multiple-ESC
|
||
(progn
|
||
(setq-default
|
||
viper-ex-style-editing
|
||
(viper-standard-value 'viper-ex-style-editing)
|
||
viper-ex-style-motion
|
||
(viper-standard-value 'viper-ex-style-motion))
|
||
(setq viper-ex-style-motion
|
||
(viper-standard-value 'viper-ex-style-motion)
|
||
viper-ex-style-editing
|
||
(viper-standard-value 'viper-ex-style-editing)
|
||
viper-re-search
|
||
(viper-standard-value 'viper-re-search)
|
||
viper-no-multiple-ESC
|
||
(viper-standard-value 'viper-no-multiple-ESC)))))
|
||
|
||
;; A wizard!!
|
||
;; Ideally, if 5 is selected, a buffer should pop up to let the
|
||
;; user toggle the values of variables.
|
||
(t (setq-default viper-ex-style-editing
|
||
(viper-standard-value 'viper-ex-style-editing)
|
||
viper-ex-style-motion
|
||
(viper-standard-value 'viper-ex-style-motion))
|
||
(setq viper-want-ctl-h-help
|
||
(viper-standard-value 'viper-want-ctl-h-help)
|
||
viper-always
|
||
(viper-standard-value 'viper-always)
|
||
viper-no-multiple-ESC
|
||
(viper-standard-value 'viper-no-multiple-ESC)
|
||
viper-ex-style-motion
|
||
(viper-standard-value 'viper-ex-style-motion)
|
||
viper-ex-style-editing
|
||
(viper-standard-value 'viper-ex-style-editing)
|
||
viper-re-search
|
||
(viper-standard-value 'viper-re-search)
|
||
viper-electric-mode
|
||
(viper-standard-value 'viper-electric-mode)
|
||
viper-want-emacs-keys-in-vi
|
||
(viper-standard-value 'viper-want-emacs-keys-in-vi)
|
||
viper-want-emacs-keys-in-insert
|
||
(viper-standard-value 'viper-want-emacs-keys-in-insert))))
|
||
|
||
(viper-set-mode-vars-for viper-current-state)
|
||
(if (or viper-always
|
||
(and (> viper-expert-level 0) (> 5 viper-expert-level)))
|
||
(viper-set-hooks)))
|
||
|
||
|
||
;; Ask user expert level.
|
||
(defun viper-ask-level (dont-change-unless)
|
||
(let ((ask-buffer " *viper-ask-level*")
|
||
level-changed repeated)
|
||
(save-window-excursion
|
||
(switch-to-buffer ask-buffer)
|
||
|
||
(while (or (> viper-expert-level viper-max-expert-level)
|
||
(< viper-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 viper-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 viper-no-multiple-ESC,
|
||
viper-ex-style-motion, viper-ex-style-editing, and
|
||
viper-re-search variables. Adjust these settings to your taste.
|
||
5 -- WIZARD: Like 4, but user settings are also respected for viper-always,
|
||
viper-electric-mode, viper-want-ctl-h-help, viper-want-emacs-keys-in-vi,
|
||
and viper-want-emacs-keys-in-insert. Adjust these to your taste.
|
||
|
||
Please, specify your level now: ")
|
||
|
||
(setq viper-expert-level (- (viper-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"
|
||
viper-expert-level))
|
||
(if (y-or-n-p "Do you wish to make this change permanent? ")
|
||
;; save the setting for viper-expert-level
|
||
(viper-save-setting
|
||
'viper-expert-level
|
||
(format "Saving user level %d ..." viper-expert-level)
|
||
viper-custom-file-name))
|
||
))
|
||
(bury-buffer) ; remove ask-buffer from screen
|
||
(message "")
|
||
)))
|
||
|
||
|
||
(defun viper-nil ()
|
||
(interactive)
|
||
(beep 1))
|
||
|
||
|
||
;; if ENFORCE-BUFFER is not nil, error if CHAR is a marker in another buffer
|
||
(defun viper-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))
|
||
((viper-valid-marker val)
|
||
(if (and enforce-buffer
|
||
(not (equal (current-buffer) (marker-buffer val))))
|
||
(error (concat viper-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 viper-EmptyTextmarker (1- (+ char ?a)))))))
|
||
|
||
|
||
(defun viper-save-kill-buffer ()
|
||
"Save then kill current buffer. "
|
||
(interactive)
|
||
(if (< viper-expert-level 2)
|
||
(save-buffers-kill-emacs)
|
||
(save-buffer)
|
||
(kill-buffer (current-buffer))))
|
||
|
||
|
||
|
||
;;; Bug Report
|
||
|
||
(defun viper-submit-report ()
|
||
"Submit bug report on Viper."
|
||
(interactive)
|
||
(let ((reporter-prompt-for-summary-p t)
|
||
(viper-device-type (viper-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 (viper-window-display-p)
|
||
(viper-color-display-p)
|
||
'non-x)
|
||
minibuffer-vi-face (if (viper-has-face-support-p)
|
||
(viper-get-face viper-minibuffer-vi-face)
|
||
'non-x)
|
||
minibuffer-insert-face (if (viper-has-face-support-p)
|
||
(viper-get-face
|
||
viper-minibuffer-insert-face)
|
||
'non-x)
|
||
minibuffer-emacs-face (if (viper-has-face-support-p)
|
||
(viper-get-face
|
||
viper-minibuffer-emacs-face)
|
||
'non-x)
|
||
frame-parameters (if (fboundp 'frame-parameters)
|
||
(frame-parameters (selected-frame))))
|
||
|
||
(setq varlist (list 'viper-vi-minibuffer-minor-mode
|
||
'viper-insert-minibuffer-minor-mode
|
||
'viper-vi-intercept-minor-mode
|
||
'viper-vi-local-user-minor-mode
|
||
'viper-vi-kbd-minor-mode
|
||
'viper-vi-global-user-minor-mode
|
||
'viper-vi-state-modifier-minor-mode
|
||
'viper-vi-diehard-minor-mode
|
||
'viper-vi-basic-minor-mode
|
||
'viper-replace-minor-mode
|
||
'viper-insert-intercept-minor-mode
|
||
'viper-insert-local-user-minor-mode
|
||
'viper-insert-kbd-minor-mode
|
||
'viper-insert-global-user-minor-mode
|
||
'viper-insert-state-modifier-minor-mode
|
||
'viper-insert-diehard-minor-mode
|
||
'viper-insert-basic-minor-mode
|
||
'viper-emacs-intercept-minor-mode
|
||
'viper-emacs-local-user-minor-mode
|
||
'viper-emacs-kbd-minor-mode
|
||
'viper-emacs-global-user-minor-mode
|
||
'viper-emacs-state-modifier-minor-mode
|
||
'viper-automatic-iso-accents
|
||
'viper-special-input-method
|
||
'viper-want-emacs-keys-in-insert
|
||
'viper-want-emacs-keys-in-vi
|
||
'viper-keep-point-on-undo
|
||
'viper-no-multiple-ESC
|
||
'viper-electric-mode
|
||
'viper-ESC-key
|
||
'viper-want-ctl-h-help
|
||
'viper-ex-style-editing
|
||
'viper-delete-backwards-in-replace
|
||
'viper-vi-style-in-minibuffer
|
||
'viper-vi-state-hook
|
||
'viper-insert-state-hook
|
||
'viper-replace-state-hook
|
||
'viper-emacs-state-hook
|
||
'ex-cycle-other-window
|
||
'ex-cycle-through-non-files
|
||
'viper-expert-level
|
||
'major-mode
|
||
'viper-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 " *viper-info*"
|
||
(switch-to-buffer " *viper-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"
|
||
(viper-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 viper-set-unread-command-events (arg)
|
||
(if viper-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
|
||
"viper-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 ((viper-characterp 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) (viper-eventify-list-xemacs arg))
|
||
(t (error
|
||
"viper-set-unread-command-events: Invalid argument, %S" arg)))
|
||
unread-command-events))))
|
||
|
||
;; list is assumed to be a list of events of characters
|
||
(defun viper-eventify-list-xemacs (lis)
|
||
(mapcar
|
||
(lambda (elt)
|
||
(cond ((viper-characterp elt) (character-to-event elt))
|
||
((eventp elt) elt)
|
||
(t (error
|
||
"viper-eventify-list-xemacs: can't convert to event, %S"
|
||
elt))))
|
||
lis))
|
||
|
||
|
||
|
||
;;; viper-cmd.el ends here
|