| 1 | ;;; misc.el --- some nonstandard basic editing commands for Emacs |
| 2 | |
| 3 | ;; Copyright (C) 1989, 2003 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;; Maintainer: FSF |
| 6 | ;; Keywords: convenience |
| 7 | |
| 8 | ;; This file is part of GNU Emacs. |
| 9 | |
| 10 | ;; GNU Emacs is free software; you can redistribute it and/or modify |
| 11 | ;; it under the terms of the GNU General Public License as published by |
| 12 | ;; the Free Software Foundation; either version 2, or (at your option) |
| 13 | ;; any later version. |
| 14 | |
| 15 | ;; GNU Emacs is distributed in the hope that it will be useful, |
| 16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | ;; GNU General Public License for more details. |
| 19 | |
| 20 | ;; You should have received a copy of the GNU General Public License |
| 21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
| 22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 23 | ;; Boston, MA 02111-1307, USA. |
| 24 | |
| 25 | ;;; Commentary: |
| 26 | |
| 27 | ;;; Code: |
| 28 | |
| 29 | (defun copy-from-above-command (&optional arg) |
| 30 | "Copy characters from previous nonblank line, starting just above point. |
| 31 | Copy ARG characters, but not past the end of that line. |
| 32 | If no argument given, copy the entire rest of the line. |
| 33 | The characters copied are inserted in the buffer before point." |
| 34 | (interactive "P") |
| 35 | (let ((cc (current-column)) |
| 36 | n |
| 37 | (string "")) |
| 38 | (save-excursion |
| 39 | (beginning-of-line) |
| 40 | (backward-char 1) |
| 41 | (skip-chars-backward "\ \t\n") |
| 42 | (move-to-column cc) |
| 43 | ;; Default is enough to copy the whole rest of the line. |
| 44 | (setq n (if arg (prefix-numeric-value arg) (point-max))) |
| 45 | ;; If current column winds up in middle of a tab, |
| 46 | ;; copy appropriate number of "virtual" space chars. |
| 47 | (if (< cc (current-column)) |
| 48 | (if (= (preceding-char) ?\t) |
| 49 | (progn |
| 50 | (setq string (make-string (min n (- (current-column) cc)) ?\ )) |
| 51 | (setq n (- n (min n (- (current-column) cc))))) |
| 52 | ;; In middle of ctl char => copy that whole char. |
| 53 | (backward-char 1))) |
| 54 | (setq string (concat string |
| 55 | (buffer-substring |
| 56 | (point) |
| 57 | (min (save-excursion (end-of-line) (point)) |
| 58 | (+ n (point))))))) |
| 59 | (insert string))) |
| 60 | |
| 61 | ;; Variation of `zap-to-char'. |
| 62 | |
| 63 | (defun zap-up-to-char (arg char) |
| 64 | "Kill up to, but not including ARG'th occurrence of CHAR. |
| 65 | Case is ignored if `case-fold-search' is non-nil in the current buffer. |
| 66 | Goes backward if ARG is negative; error if CHAR not found. |
| 67 | Ignores CHAR at point." |
| 68 | (interactive "p\ncZap up to char: ") |
| 69 | (let ((direction (if (>= arg 0) 1 -1))) |
| 70 | (kill-region (point) |
| 71 | (progn |
| 72 | (forward-char direction) |
| 73 | (unwind-protect |
| 74 | (search-forward (char-to-string char) nil nil arg) |
| 75 | (backward-char direction)) |
| 76 | (point))))) |
| 77 | |
| 78 | ;; These were added with an eye to making possible a more CCA-compatible |
| 79 | ;; command set; but that turned out not to be interesting. |
| 80 | |
| 81 | (defun mark-beginning-of-buffer () |
| 82 | "Set mark at the beginning of the buffer." |
| 83 | (interactive) |
| 84 | (push-mark (point-min))) |
| 85 | |
| 86 | (defun mark-end-of-buffer () |
| 87 | "Set mark at the end of the buffer." |
| 88 | (interactive) |
| 89 | (push-mark (point-max))) |
| 90 | |
| 91 | (defun upcase-char (arg) |
| 92 | "Uppercasify ARG chars starting from point. Point doesn't move." |
| 93 | (interactive "p") |
| 94 | (save-excursion |
| 95 | (upcase-region (point) (progn (forward-char arg) (point))))) |
| 96 | |
| 97 | (defun forward-to-word (arg) |
| 98 | "Move forward until encountering the beginning of a word. |
| 99 | With argument, do this that many times." |
| 100 | (interactive "p") |
| 101 | (or (re-search-forward (if (> arg 0) "\\W\\b" "\\b\\W") nil t arg) |
| 102 | (goto-char (if (> arg 0) (point-max) (point-min))))) |
| 103 | |
| 104 | (defun backward-to-word (arg) |
| 105 | "Move backward until encountering the end of a word. |
| 106 | With argument, do this that many times." |
| 107 | (interactive "p") |
| 108 | (forward-to-word (- arg))) |
| 109 | |
| 110 | (provide 'misc) |
| 111 | |
| 112 | ;;; arch-tag: 908f7884-c19e-4388-920c-9cfa425e449b |
| 113 | ;;; misc.el ends here |