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| author | root | 1990-08-27 04:15:41 +0000 |
|---|---|---|
| committer | root | 1990-08-27 04:15:41 +0000 |
| commit | b73b9811e079c5bbadf13e99390cc73324129f14 (patch) | |
| tree | 528a679b50c752df2ae18da750ec1e6cc4071194 | |
| parent | 994fd4add47f5bf44cd75f69e493092406eb4d6a (diff) | |
| download | emacs-b73b9811e079c5bbadf13e99390cc73324129f14.tar.gz emacs-b73b9811e079c5bbadf13e99390cc73324129f14.zip | |
Initial revision
| -rw-r--r-- | lisp/emacs-lisp/lisp.el | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/lisp/emacs-lisp/lisp.el b/lisp/emacs-lisp/lisp.el new file mode 100644 index 00000000000..bffaee57487 --- /dev/null +++ b/lisp/emacs-lisp/lisp.el | |||
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| 1 | ;; Lisp editing commands for Emacs | ||
| 2 | ;; Copyright (C) 1985, 1986 Free Software Foundation, Inc. | ||
| 3 | |||
| 4 | ;; This file is part of GNU Emacs. | ||
| 5 | |||
| 6 | ;; GNU Emacs is free software; you can redistribute it and/or modify | ||
| 7 | ;; it under the terms of the GNU General Public License as published by | ||
| 8 | ;; the Free Software Foundation; either version 1, or (at your option) | ||
| 9 | ;; any later version. | ||
| 10 | |||
| 11 | ;; GNU Emacs is distributed in the hope that it will be useful, | ||
| 12 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 14 | ;; GNU General Public License for more details. | ||
| 15 | |||
| 16 | ;; You should have received a copy of the GNU General Public License | ||
| 17 | ;; along with GNU Emacs; see the file COPYING. If not, write to | ||
| 18 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 19 | |||
| 20 | |||
| 21 | (defvar defun-prompt-regexp nil | ||
| 22 | "Non-nil => regexp to ignore, before the `(' that starts a defun.") | ||
| 23 | |||
| 24 | (defun forward-sexp (&optional arg) | ||
| 25 | "Move forward across one balanced expression (sexp). | ||
| 26 | With argument, do it that many times. | ||
| 27 | Negative arg -N means move backward across N balanced expressions." | ||
| 28 | (interactive "p") | ||
| 29 | (or arg (setq arg 1)) | ||
| 30 | (goto-char (or (scan-sexps (point) arg) (buffer-end arg))) | ||
| 31 | (if (< arg 0) (backward-prefix-chars))) | ||
| 32 | |||
| 33 | (defun backward-sexp (&optional arg) | ||
| 34 | "Move backward across one balanced expression (sexp). | ||
| 35 | With argument, do it that many times. | ||
| 36 | Negative arg -N means move forward across N balanced expressions." | ||
| 37 | (interactive "p") | ||
| 38 | (or arg (setq arg 1)) | ||
| 39 | (forward-sexp (- arg))) | ||
| 40 | |||
| 41 | (defun mark-sexp (arg) | ||
| 42 | "Set mark ARG sexps from point. | ||
| 43 | The place mark goes is the same place \\[forward-sexp] would move to | ||
| 44 | with the same argument." | ||
| 45 | (interactive "p") | ||
| 46 | (push-mark | ||
| 47 | (save-excursion | ||
| 48 | (forward-sexp arg) | ||
| 49 | (point)))) | ||
| 50 | |||
| 51 | (defun forward-list (&optional arg) | ||
| 52 | "Move forward across one balanced group of parentheses. | ||
| 53 | With argument, do it that many times. | ||
| 54 | Negative arg -N means move backward across N groups of parentheses." | ||
| 55 | (interactive "p") | ||
| 56 | (or arg (setq arg 1)) | ||
| 57 | (goto-char (or (scan-lists (point) arg 0) (buffer-end arg)))) | ||
| 58 | |||
| 59 | (defun backward-list (&optional arg) | ||
| 60 | "Move backward across one balanced group of parentheses. | ||
| 61 | With argument, do it that many times. | ||
| 62 | Negative arg -N means move forward across N groups of parentheses." | ||
| 63 | (interactive "p") | ||
| 64 | (or arg (setq arg 1)) | ||
| 65 | (forward-list (- arg))) | ||
| 66 | |||
| 67 | (defun down-list (arg) | ||
| 68 | "Move forward down one level of parentheses. | ||
| 69 | With argument, do this that many times. | ||
| 70 | A negative argument means move backward but still go down a level. | ||
| 71 | In Lisp programs, an argument is required." | ||
| 72 | (interactive "p") | ||
| 73 | (let ((inc (if (> arg 0) 1 -1))) | ||
| 74 | (while (/= arg 0) | ||
| 75 | (goto-char (or (scan-lists (point) inc -1) (buffer-end arg))) | ||
| 76 | (setq arg (- arg inc))))) | ||
| 77 | |||
| 78 | (defun backward-up-list (arg) | ||
| 79 | "Move backward out of one level of parentheses. | ||
| 80 | With argument, do this that many times. | ||
| 81 | A negative argument means move forward but still to a less deep spot. | ||
| 82 | In Lisp programs, an argument is required." | ||
| 83 | (interactive "p") | ||
| 84 | (up-list (- arg))) | ||
| 85 | |||
| 86 | (defun up-list (arg) | ||
| 87 | "Move forward out of one level of parentheses. | ||
| 88 | With argument, do this that many times. | ||
| 89 | A negative argument means move backward but still to a less deep spot. | ||
| 90 | In Lisp programs, an argument is required." | ||
| 91 | (interactive "p") | ||
| 92 | (let ((inc (if (> arg 0) 1 -1))) | ||
| 93 | (while (/= arg 0) | ||
| 94 | (goto-char (or (scan-lists (point) inc 1) (buffer-end arg))) | ||
| 95 | (setq arg (- arg inc))))) | ||
| 96 | |||
| 97 | (defun kill-sexp (arg) | ||
| 98 | "Kill the sexp (balanced expression) following the cursor. | ||
| 99 | With argument, kill that many sexps after the cursor. | ||
| 100 | Negative arg -N means kill N sexps before the cursor." | ||
| 101 | (interactive "p") | ||
| 102 | (let ((opoint (point))) | ||
| 103 | (forward-sexp arg) | ||
| 104 | (kill-region opoint (point)))) | ||
| 105 | |||
| 106 | (defun backward-kill-sexp (arg) | ||
| 107 | "Kill the sexp (balanced expression) preceding the cursor. | ||
| 108 | With argument, kill that many sexps before the cursor. | ||
| 109 | Negative arg -N means kill N sexps after the cursor." | ||
| 110 | (interactive "p") | ||
| 111 | (kill-sexp (- arg))) | ||
| 112 | |||
| 113 | (defun beginning-of-defun (&optional arg) | ||
| 114 | "Move backward to the beginning of a defun. | ||
| 115 | With argument, do it that many times. Negative arg -N | ||
| 116 | means move forward to Nth following beginning of defun. | ||
| 117 | Returns t unless search stops due to beginning or end of buffer. | ||
| 118 | |||
| 119 | Normally a defun starts when there is an char with open-parenthesis | ||
| 120 | syntax at the beginning of a line. If `defun-prompt-regexp' is | ||
| 121 | non-nil, then a string which matches that regexp may precede the | ||
| 122 | open-parenthesis." | ||
| 123 | (interactive "p") | ||
| 124 | (and arg (< arg 0) (forward-char 1)) | ||
| 125 | (and (re-search-backward (if defun-prompt-regexp | ||
| 126 | (concat "^\\s(\\|" | ||
| 127 | "\\(" defun-prompt-regexp "\\)\\s(") | ||
| 128 | "^\\s(") | ||
| 129 | nil 'move (or arg 1)) | ||
| 130 | (progn (beginning-of-line) t))) | ||
| 131 | |||
| 132 | (defun buffer-end (arg) | ||
| 133 | (if (> arg 0) (point-max) (point-min))) | ||
| 134 | |||
| 135 | (defun end-of-defun (&optional arg) | ||
| 136 | "Move forward to next end of defun. With argument, do it that many times. | ||
| 137 | Negative argument -N means move back to Nth preceding end of defun. | ||
| 138 | |||
| 139 | An end of a defun occurs right after the close-parenthesis that matches | ||
| 140 | the open-parenthesis that starts a defun; see `beginning-of-defun'." | ||
| 141 | (interactive "p") | ||
| 142 | (if (or (null arg) (= arg 0)) (setq arg 1)) | ||
| 143 | (let ((first t)) | ||
| 144 | (while (and (> arg 0) (< (point) (point-max))) | ||
| 145 | (let ((pos (point)) npos) | ||
| 146 | (while (progn | ||
| 147 | (if (and first | ||
| 148 | (progn | ||
| 149 | (forward-char 1) | ||
| 150 | (beginning-of-defun 1))) | ||
| 151 | nil | ||
| 152 | (or (bobp) (forward-char -1)) | ||
| 153 | (beginning-of-defun -1)) | ||
| 154 | (setq first nil) | ||
| 155 | (forward-list 1) | ||
| 156 | (skip-chars-forward " \t") | ||
| 157 | (if (looking-at "\\s<\\|\n") | ||
| 158 | (forward-line 1)) | ||
| 159 | (<= (point) pos)))) | ||
| 160 | (setq arg (1- arg))) | ||
| 161 | (while (< arg 0) | ||
| 162 | (let ((pos (point))) | ||
| 163 | (beginning-of-defun 1) | ||
| 164 | (forward-sexp 1) | ||
| 165 | (forward-line 1) | ||
| 166 | (if (>= (point) pos) | ||
| 167 | (if (beginning-of-defun 2) | ||
| 168 | (progn | ||
| 169 | (forward-list 1) | ||
| 170 | (skip-chars-forward " \t") | ||
| 171 | (if (looking-at "[;\n]") | ||
| 172 | (forward-line 1))) | ||
| 173 | (goto-char (point-min))))) | ||
| 174 | (setq arg (1+ arg))))) | ||
| 175 | |||
| 176 | (defun mark-defun () | ||
| 177 | "Put mark at end of this defun, point at beginning. | ||
| 178 | The defun marked is the one that contains point or follows point." | ||
| 179 | (interactive) | ||
| 180 | (push-mark (point)) | ||
| 181 | (end-of-defun) | ||
| 182 | (push-mark (point)) | ||
| 183 | (beginning-of-defun) | ||
| 184 | (re-search-backward "^\n" (- (point) 1) t)) | ||
| 185 | |||
| 186 | (defun insert-parentheses (arg) | ||
| 187 | "Put parentheses around next ARG sexps. Leave point after open-paren. | ||
| 188 | No argument is equivalent to zero: just insert () and leave point between." | ||
| 189 | (interactive "P") | ||
| 190 | (if arg (skip-chars-forward " \t")) | ||
| 191 | (and (memq (char-syntax (preceding-char)) '(?w ?_ ?\) )) | ||
| 192 | (insert " ")) | ||
| 193 | ; (or (memq (char-syntax (preceding-char)) '(?\ ?> ?\( )) | ||
| 194 | ; (insert " "))) | ||
| 195 | (insert ?\() | ||
| 196 | (save-excursion | ||
| 197 | (if arg | ||
| 198 | (forward-sexp (prefix-numeric-value arg))) | ||
| 199 | (insert ?\)) | ||
| 200 | ; (or (memq (char-syntax (following-char)) '(?\ ?> ?\( )) | ||
| 201 | ; (insert " ")) | ||
| 202 | (and (memq (char-syntax (following-char)) '(?w ?_ ?\( )) | ||
| 203 | (insert " ")) | ||
| 204 | )) | ||
| 205 | |||
| 206 | (defun move-past-close-and-reindent () | ||
| 207 | "Move past next `)', delete indentation before it, then indent after it." | ||
| 208 | (interactive) | ||
| 209 | (up-list 1) | ||
| 210 | (forward-char -1) | ||
| 211 | (while (save-excursion ; this is my contribution | ||
| 212 | (let ((before-paren (point))) | ||
| 213 | (back-to-indentation) | ||
| 214 | (= (point) before-paren))) | ||
| 215 | (delete-indentation)) | ||
| 216 | (forward-char 1) | ||
| 217 | (newline-and-indent)) | ||
| 218 | |||
| 219 | (defun lisp-complete-symbol () | ||
| 220 | "Perform completion on Lisp symbol preceding point. | ||
| 221 | That symbol is compared against the symbols that exist | ||
| 222 | and any additional characters determined by what is there | ||
| 223 | are inserted. | ||
| 224 | If the symbol starts just after an open-parenthesis, | ||
| 225 | only symbols with function definitions are considered. | ||
| 226 | Otherwise, all symbols with function definitions, values | ||
| 227 | or properties are considered." | ||
| 228 | (interactive) | ||
| 229 | (let* ((end (point)) | ||
| 230 | (buffer-syntax (syntax-table)) | ||
| 231 | (beg (save-excursion | ||
| 232 | (set-syntax-table lisp-mode-syntax-table) | ||
| 233 | (backward-sexp 1) | ||
| 234 | (while (= (char-syntax (following-char)) ?\') | ||
| 235 | (forward-char 1)) | ||
| 236 | (point) | ||
| 237 | (set-syntax-table buffer-syntax))) | ||
| 238 | (pattern (buffer-substring beg end)) | ||
| 239 | (predicate | ||
| 240 | (if (eq (char-after (1- beg)) ?\() | ||
| 241 | 'fboundp | ||
| 242 | (function (lambda (sym) | ||
| 243 | (or (boundp sym) (fboundp sym) | ||
| 244 | (symbol-plist sym)))))) | ||
| 245 | (completion (try-completion pattern obarray predicate))) | ||
| 246 | (cond ((eq completion t)) | ||
| 247 | ((null completion) | ||
| 248 | (message "Can't find completion for \"%s\"" pattern) | ||
| 249 | (ding)) | ||
| 250 | ((not (string= pattern completion)) | ||
| 251 | (delete-region beg end) | ||
| 252 | (insert completion)) | ||
| 253 | (t | ||
| 254 | (message "Making completion list...") | ||
| 255 | (let ((list (all-completions pattern obarray predicate))) | ||
| 256 | (or (eq predicate 'fboundp) | ||
| 257 | (let (new) | ||
| 258 | (while list | ||
| 259 | (setq new (cons (if (fboundp (intern (car list))) | ||
| 260 | (list (car list) " <f>") | ||
| 261 | (car list)) | ||
| 262 | new)) | ||
| 263 | (setq list (cdr list))) | ||
| 264 | (setq list (nreverse new)))) | ||
| 265 | (with-output-to-temp-buffer " *Completions*" | ||
| 266 | (display-completion-list list))) | ||
| 267 | (message "Making completion list...%s" "done"))))) | ||