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- ;; Lisp editing commands for Emacs
- ;; Copyright (C) 1985, 1986 Free Software Foundation, Inc.
-
- ;; This file is part of GNU Emacs.
-
- ;; GNU Emacs is free software; you can redistribute it and/or modify
- ;; it under the terms of the GNU General Public License as published by
- ;; the Free Software Foundation; either version 1, or (at your option)
- ;; any later version.
-
- ;; GNU Emacs is distributed in the hope that it will be useful,
- ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
- ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ;; GNU General Public License for more details.
-
- ;; You should have received a copy of the GNU General Public License
- ;; along with GNU Emacs; see the file COPYING. If not, write to
- ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-
- (defun forward-sexp (&optional arg)
- "Move forward across one balanced expression.
- With argument, do this that many times."
- (interactive "p")
- (or arg (setq arg 1))
- (goto-char (or (scan-sexps (point) arg) (buffer-end arg)))
- (if (< arg 0) (backward-prefix-chars)))
-
- (defun backward-sexp (&optional arg)
- "Move backward across one balanced expression.
- With argument, do this that many times."
- (interactive "p")
- (or arg (setq arg 1))
- (forward-sexp (- arg)))
-
- (defun mark-sexp (arg)
- "Set mark ARG sexps from point."
- (interactive "p")
- (push-mark
- (save-excursion
- (forward-sexp arg)
- (point))))
-
- (defun forward-list (&optional arg)
- "Move forward across one balanced group of parentheses.
- With argument, do this that many times."
- (interactive "p")
- (or arg (setq arg 1))
- (goto-char (or (scan-lists (point) arg 0) (buffer-end arg))))
-
- (defun backward-list (&optional arg)
- "Move backward across one balanced group of parentheses.
- With argument, do this that many times."
- (interactive "p")
- (or arg (setq arg 1))
- (forward-list (- arg)))
-
- (defun down-list (arg)
- "Move forward down one level of parentheses.
- With argument, do this that many times.
- A negative argument means move backward but still go down a level."
- (interactive "p")
- (let ((inc (if (> arg 0) 1 -1)))
- (while (/= arg 0)
- (goto-char (or (scan-lists (point) inc -1) (buffer-end arg)))
- (setq arg (- arg inc)))))
-
- (defun backward-up-list (arg)
- "Move backward out of one level of parentheses.
- With argument, do this that many times.
- A negative argument means move forward but still to a less deep spot."
- (interactive "p")
- (up-list (- arg)))
-
- (defun up-list (arg)
- "Move forward out of one level of parentheses.
- With argument, do this that many times.
- A negative argument means move backward but still to a less deep spot."
- (interactive "p")
- (let ((inc (if (> arg 0) 1 -1)))
- (while (/= arg 0)
- (goto-char (or (scan-lists (point) inc 1) (buffer-end arg)))
- (setq arg (- arg inc)))))
-
- (defun kill-sexp (arg)
- "Kill the syntactic expression following the cursor.
- With argument, kill that many expressions after (or before) the cursor."
- (interactive "p")
- (let ((opoint (point)))
- (forward-sexp arg)
- (kill-region opoint (point))))
-
- (defun backward-kill-sexp (arg)
- "Kill the syntactic expression preceding the cursor.
- With argument, kill that many expressions before (or after) the cursor."
- (interactive "p")
- (kill-sexp (- arg)))
-
- (defun beginning-of-defun (&optional arg)
- "Move backward to next beginning-of-defun.
- With argument, do this that many times.
- Returns t unless search stops due to end of buffer."
- (interactive "p")
- (and arg (< arg 0) (forward-char 1))
- (and (re-search-backward "^\\s(" nil 'move (or arg 1))
- (progn (beginning-of-line) t)))
-
- (defun buffer-end (arg)
- (if (> arg 0) (point-max) (point-min)))
-
- (defun end-of-defun (&optional arg)
- "Move forward to next end of defun.
- An end of a defun is found by moving forward from the beginning of one."
- (interactive "p")
- (if (or (null arg) (= arg 0)) (setq arg 1))
- (let ((first t))
- (while (and (> arg 0) (< (point) (point-max)))
- (let ((pos (point)) npos)
- (while (progn
- (if (and first
- (progn
- (forward-char 1)
- (beginning-of-defun 1)))
- nil
- (or (bobp) (forward-char -1))
- (beginning-of-defun -1))
- (setq first nil)
- (forward-list 1)
- (skip-chars-forward " \t")
- (if (looking-at "[;\n]")
- (forward-line 1))
- (<= (point) pos))))
- (setq arg (1- arg)))
- (while (< arg 0)
- (let ((pos (point)))
- (beginning-of-defun 1)
- (forward-sexp 1)
- (forward-line 1)
- (if (>= (point) pos)
- (if (beginning-of-defun 2)
- (progn
- (forward-list 1)
- (skip-chars-forward " \t")
- (if (looking-at "[;\n]")
- (forward-line 1)))
- (goto-char (point-min)))))
- (setq arg (1+ arg)))))
-
- (defun mark-defun ()
- "Put mark at end of defun, point at beginning."
- (interactive)
- (push-mark (point))
- (end-of-defun)
- (push-mark (point))
- (beginning-of-defun)
- (re-search-backward "^\n" (- (point) 1) t))
-
- (defun insert-parentheses (arg)
- "Put parentheses around next ARG sexps. Leave point after open-paren.
- No argument is equivalent to zero: just insert () and leave point between."
- (interactive "P")
- ;Install these commented-out lines for version 19.
- ; (if arg (skip-chars-forward " \t")
- ; (or (memq (char-syntax (preceding-char)) '(?\ ?> ?\( ))
- ; (insert " ")))
- (insert ?\()
- (save-excursion
- (if arg
- (forward-sexp (prefix-numeric-value arg)))
- (insert ?\))
- ; (or (memq (char-syntax (following-char)) '(?\ ?> ?\( ))
- ; (insert " "))
- ))
-
- (defun move-past-close-and-reindent ()
- "Move past next ), delete indentation before it, then indent after it."
- (interactive)
- (up-list 1)
- (forward-char -1)
- (while (save-excursion ; this is my contribution
- (let ((before-paren (point)))
- (back-to-indentation)
- (= (point) before-paren)))
- (delete-indentation))
- (forward-char 1)
- (newline-and-indent))
-
- (defun lisp-complete-symbol ()
- "Perform completion on Lisp symbol preceding point.
- That symbol is compared against the symbols that exist
- and any additional characters determined by what is there
- are inserted.
- If the symbol starts just after an open-parenthesis,
- only symbols with function definitions are considered.
- Otherwise, all symbols with function definitions, values
- or properties are considered."
- (interactive)
- (let* ((end (point))
- (buffer-syntax (syntax-table))
- (beg (unwind-protect
- (save-excursion
- (set-syntax-table emacs-lisp-mode-syntax-table)
- (backward-sexp 1)
- (while (= (char-syntax (following-char)) ?\')
- (forward-char 1))
- (point))
- (set-syntax-table buffer-syntax)))
- (pattern (buffer-substring beg end))
- (predicate
- (if (eq (char-after (1- beg)) ?\()
- 'fboundp
- (function (lambda (sym)
- (or (boundp sym) (fboundp sym)
- (symbol-plist sym))))))
- (completion (try-completion pattern obarray predicate)))
- (cond ((eq completion t))
- ((null completion)
- (message "Can't find completion for \"%s\"" pattern)
- (ding))
- ((not (string= pattern completion))
- (delete-region beg end)
- (insert completion))
- (t
- (message "Making completion list...")
- (let ((list (all-completions pattern obarray predicate)))
- (or (eq predicate 'fboundp)
- (let (new)
- (while list
- (setq new (cons (if (fboundp (intern (car list)))
- (list (car list) " <f>")
- (car list))
- new))
- (setq list (cdr list)))
- (setq list (nreverse new))))
- (with-output-to-temp-buffer " *Completions*"
- (display-completion-list list)))
- (message "Making completion list...%s" "done")))))
-