--- /dev/null
+;; Lisp mode, and its idiosyncratic commands.
+;; Copyright (C) 1985 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.
+
+
+(defvar lisp-mode-syntax-table nil "")
+(defvar emacs-lisp-mode-syntax-table nil "")
+(defvar lisp-mode-abbrev-table nil "")
+
+(if (not emacs-lisp-mode-syntax-table)
+ (let ((i 0))
+ (setq emacs-lisp-mode-syntax-table (make-syntax-table))
+ (while (< i ?0)
+ (modify-syntax-entry i "_ " emacs-lisp-mode-syntax-table)
+ (setq i (1+ i)))
+ (setq i (1+ ?9))
+ (while (< i ?A)
+ (modify-syntax-entry i "_ " emacs-lisp-mode-syntax-table)
+ (setq i (1+ i)))
+ (setq i (1+ ?Z))
+ (while (< i ?a)
+ (modify-syntax-entry i "_ " emacs-lisp-mode-syntax-table)
+ (setq i (1+ i)))
+ (setq i (1+ ?z))
+ (while (< i 128)
+ (modify-syntax-entry i "_ " emacs-lisp-mode-syntax-table)
+ (setq i (1+ i)))
+ (modify-syntax-entry ? " " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?\t " " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?\n "> " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?\f "> " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?\; "< " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?` "' " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?' "' " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?, "' " emacs-lisp-mode-syntax-table)
+ ;; Used to be singlequote; changed for flonums.
+ (modify-syntax-entry ?. "_ " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?# "' " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?\" "\" " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?\\ "\\ " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?\( "() " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?\) ")( " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?\[ "(] " emacs-lisp-mode-syntax-table)
+ (modify-syntax-entry ?\] ")[ " emacs-lisp-mode-syntax-table)))
+
+(define-abbrev-table 'lisp-mode-abbrev-table ())
+
+(defun lisp-mode-variables (lisp-syntax)
+ (cond (lisp-syntax
+ (if (not lisp-mode-syntax-table)
+ (progn (setq lisp-mode-syntax-table
+ (copy-syntax-table emacs-lisp-mode-syntax-table))
+ (modify-syntax-entry ?\| "\" "
+ lisp-mode-syntax-table)
+ (modify-syntax-entry ?\[ "_ "
+ lisp-mode-syntax-table)
+ (modify-syntax-entry ?\] "_ "
+ lisp-mode-syntax-table)))
+ (set-syntax-table lisp-mode-syntax-table)))
+ (setq local-abbrev-table lisp-mode-abbrev-table)
+ (make-local-variable 'paragraph-start)
+ (setq paragraph-start (concat "^$\\|" page-delimiter))
+ (make-local-variable 'paragraph-separate)
+ (setq paragraph-separate paragraph-start)
+ (make-local-variable 'paragraph-ignore-fill-prefix)
+ (setq paragraph-ignore-fill-prefix t)
+ (make-local-variable 'indent-line-function)
+ (setq indent-line-function 'lisp-indent-line)
+ (make-local-variable 'indent-region-function)
+ (setq indent-region-function 'lisp-indent-region)
+ (make-local-variable 'parse-sexp-ignore-comments)
+ (setq parse-sexp-ignore-comments t)
+ (make-local-variable 'comment-start)
+ (setq comment-start ";")
+ (make-local-variable 'comment-start-skip)
+ (setq comment-start-skip ";+ *")
+ (make-local-variable 'comment-column)
+ (setq comment-column 40)
+ (make-local-variable 'comment-indent-hook)
+ (setq comment-indent-hook 'lisp-comment-indent))
+\f
+(defvar shared-lisp-mode-map ()
+ "Keymap for commands shared by all sorts of Lisp modes.")
+
+(if shared-lisp-mode-map
+ ()
+ (setq shared-lisp-mode-map (make-sparse-keymap))
+ (define-key shared-lisp-mode-map "\e\C-q" 'indent-sexp)
+ (define-key shared-lisp-mode-map "\177" 'backward-delete-char-untabify)
+ (define-key shared-lisp-mode-map "\t" 'lisp-indent-line))
+
+(defvar emacs-lisp-mode-map ()
+ "Keymap for Emacs Lisp mode.
+All commands in shared-lisp-mode-map are inherited by this map.")
+
+(if emacs-lisp-mode-map
+ ()
+ (setq emacs-lisp-mode-map
+ (nconc (make-sparse-keymap) shared-lisp-mode-map))
+ (define-key emacs-lisp-mode-map "\e\C-x" 'eval-defun))
+
+(defun emacs-lisp-mode ()
+ "Major mode for editing Lisp code to run in Emacs.
+Commands:
+Delete converts tabs to spaces as it moves back.
+Blank lines separate paragraphs. Semicolons start comments.
+\\{emacs-lisp-mode-map}
+Entry to this mode calls the value of `emacs-lisp-mode-hook'
+if that value is non-nil."
+ (interactive)
+ (kill-all-local-variables)
+ (use-local-map emacs-lisp-mode-map)
+ (set-syntax-table emacs-lisp-mode-syntax-table)
+ (setq major-mode 'emacs-lisp-mode)
+ (setq mode-name "Emacs-Lisp")
+ (lisp-mode-variables nil)
+ (run-hooks 'emacs-lisp-mode-hook))
+
+(defvar lisp-mode-map ()
+ "Keymap for ordinary Lisp mode.
+All commands in `shared-lisp-mode-map' are inherited by this map.")
+
+(if lisp-mode-map
+ ()
+ (setq lisp-mode-map
+ (nconc (make-sparse-keymap) shared-lisp-mode-map))
+ (define-key lisp-mode-map "\e\C-x" 'lisp-send-defun)
+ (define-key lisp-mode-map "\C-c\C-l" 'run-lisp))
+
+(defun lisp-mode ()
+ "Major mode for editing Lisp code for Lisps other than GNU Emacs Lisp.
+Commands:
+Delete converts tabs to spaces as it moves back.
+Blank lines separate paragraphs. Semicolons start comments.
+\\{lisp-mode-map}
+Note that `run-lisp' may be used either to start an inferior Lisp job
+or to switch back to an existing one.
+
+Entry to this mode calls the value of `lisp-mode-hook'
+if that value is non-nil."
+ (interactive)
+ (kill-all-local-variables)
+ (use-local-map lisp-mode-map)
+ (setq major-mode 'lisp-mode)
+ (setq mode-name "Lisp")
+ (lisp-mode-variables t)
+ (set-syntax-table lisp-mode-syntax-table)
+ (run-hooks 'lisp-mode-hook))
+
+;; This will do unless shell.el is loaded.
+(defun lisp-send-defun nil
+ "Send the current defun to the Lisp process made by \\[run-lisp]."
+ (interactive)
+ (error "Process lisp does not exist"))
+
+(defvar lisp-interaction-mode-map ()
+ "Keymap for Lisp Interaction moe.
+All commands in `shared-lisp-mode-map' are inherited by this map.")
+
+(if lisp-interaction-mode-map
+ ()
+ (setq lisp-interaction-mode-map
+ (nconc (make-sparse-keymap) shared-lisp-mode-map))
+ (define-key lisp-interaction-mode-map "\e\C-x" 'eval-defun)
+ (define-key lisp-interaction-mode-map "\n" 'eval-print-last-sexp))
+
+(defun lisp-interaction-mode ()
+ "Major mode for typing and evaluating Lisp forms.
+Like Lisp mode except that \\[eval-print-last-sexp] evals the Lisp expression
+before point, and prints its value into the buffer, advancing point.
+
+Commands:
+Delete converts tabs to spaces as it moves back.
+Paragraphs are separated only by blank lines.
+Semicolons start comments.
+\\{lisp-interaction-mode-map}
+Entry to this mode calls the value of `lisp-interaction-mode-hook'
+if that value is non-nil."
+ (interactive)
+ (kill-all-local-variables)
+ (use-local-map lisp-interaction-mode-map)
+ (setq major-mode 'lisp-interaction-mode)
+ (setq mode-name "Lisp Interaction")
+ (set-syntax-table emacs-lisp-mode-syntax-table)
+ (lisp-mode-variables nil)
+ (run-hooks 'lisp-interaction-mode-hook))
+
+(defun eval-print-last-sexp (arg)
+ "Evaluate sexp before point; print value into current buffer."
+ (interactive "P")
+ (eval-region
+ (let ((stab (syntax-table)))
+ (unwind-protect
+ (save-excursion
+ (set-syntax-table emacs-lisp-mode-syntax-table)
+ (forward-sexp -1)
+ (point))
+ (set-syntax-table stab)))
+ (point)
+ (current-buffer)))
+\f
+(defun eval-last-sexp (arg)
+ "Evaluate sexp before point; print value in minibuffer.
+With argument, print output into current buffer."
+ (interactive "P")
+ (eval-region
+ (let ((stab (syntax-table)))
+ (unwind-protect
+ (save-excursion
+ (set-syntax-table emacs-lisp-mode-syntax-table)
+ (forward-sexp -1)
+ (point))
+ (set-syntax-table stab)))
+ (point)
+ (if arg (current-buffer) t)))
+
+(defun eval-defun (arg)
+ "Evaluate defun that point is in or before. Print value in minibuffer.
+With argument, edebug-defun it instead, preparing it for source-level
+debugging with the electric debugger."
+ (interactive "P")
+ (if arg (edebug-defun)
+ (save-excursion
+ (end-of-defun)
+ (let ((end (point)))
+ (beginning-of-defun)
+ (eval-region (point) end t)))))
+\f
+(defun lisp-comment-indent ()
+ (if (looking-at "\\s<\\s<\\s<")
+ (current-column)
+ (if (looking-at "\\s<\\s<")
+ (let ((tem (calculate-lisp-indent)))
+ (if (listp tem) (car tem) tem))
+ (skip-chars-backward " \t")
+ (max (if (bolp) 0 (1+ (current-column)))
+ comment-column))))
+
+(defconst lisp-indent-offset nil "")
+(defconst lisp-indent-function 'lisp-indent-function "")
+
+(defun lisp-indent-line (&optional whole-exp)
+ "Indent current line as Lisp code.
+With argument, indent any additional lines of the same expression
+rigidly along with this one."
+ (interactive "P")
+ (let ((indent (calculate-lisp-indent)) shift-amt beg end
+ (pos (- (point-max) (point))))
+ (beginning-of-line)
+ (setq beg (point))
+ (skip-chars-forward " \t")
+ (if (looking-at "\\s<\\s<\\s<")
+ ;; Don't alter indentation of a ;;; comment line.
+ nil
+ (if (and (looking-at "\\s<") (not (looking-at "\\s<\\s<")))
+ ;; Single-semicolon comment lines should be indented
+ ;; as comment lines, not as code.
+ (progn (indent-for-comment) (forward-char -1))
+ (if (listp indent) (setq indent (car indent)))
+ (setq shift-amt (- indent (current-column)))
+ (if (zerop shift-amt)
+ nil
+ (delete-region beg (point))
+ (indent-to indent)))
+ ;; If initial point was within line's indentation,
+ ;; position after the indentation. Else stay at same point in text.
+ (if (> (- (point-max) pos) (point))
+ (goto-char (- (point-max) pos)))
+ ;; If desired, shift remaining lines of expression the same amount.
+ (and whole-exp (not (zerop shift-amt))
+ (save-excursion
+ (goto-char beg)
+ (forward-sexp 1)
+ (setq end (point))
+ (goto-char beg)
+ (forward-line 1)
+ (setq beg (point))
+ (> end beg))
+ (indent-code-rigidly beg end shift-amt)))))
+
+(defun calculate-lisp-indent (&optional parse-start)
+ "Return appropriate indentation for current line as Lisp code.
+In usual case returns an integer: the column to indent to.
+Can instead return a list, whose car is the column to indent to.
+This means that following lines at the same level of indentation
+should not necessarily be indented the same way.
+The second element of the list is the buffer position
+of the start of the containing expression."
+ (save-excursion
+ (beginning-of-line)
+ (let ((indent-point (point))
+ state paren-depth
+ ;; setting this to a number inhibits calling hook
+ (desired-indent nil)
+ (retry t)
+ last-sexp containing-sexp)
+ (if parse-start
+ (goto-char parse-start)
+ (beginning-of-defun))
+ ;; Find outermost containing sexp
+ (while (< (point) indent-point)
+ (setq state (parse-partial-sexp (point) indent-point 0)))
+ ;; Find innermost containing sexp
+ (while (and retry
+ state
+ (> (setq paren-depth (elt state 0)) 0))
+ (setq retry nil)
+ (setq last-sexp (elt state 2))
+ (setq containing-sexp (elt state 1))
+ ;; Position following last unclosed open.
+ (goto-char (1+ containing-sexp))
+ ;; Is there a complete sexp since then?
+ (if (and last-sexp (> last-sexp (point)))
+ ;; Yes, but is there a containing sexp after that?
+ (let ((peek (parse-partial-sexp last-sexp indent-point 0)))
+ (if (setq retry (car (cdr peek))) (setq state peek)))))
+ (if retry
+ nil
+ ;; Innermost containing sexp found
+ (goto-char (1+ containing-sexp))
+ (if (not last-sexp)
+ ;; indent-point immediately follows open paren.
+ ;; Don't call hook.
+ (setq desired-indent (current-column))
+ ;; Find the start of first element of containing sexp.
+ (parse-partial-sexp (point) last-sexp 0 t)
+ (cond ((looking-at "\\s(")
+ ;; First element of containing sexp is a list.
+ ;; Indent under that list.
+ )
+ ((> (save-excursion (forward-line 1) (point))
+ last-sexp)
+ ;; This is the first line to start within the containing sexp.
+ ;; It's almost certainly a function call.
+ (if (= (point) last-sexp)
+ ;; Containing sexp has nothing before this line
+ ;; except the first element. Indent under that element.
+ nil
+ ;; Skip the first element, find start of second (the first
+ ;; argument of the function call) and indent under.
+ (progn (forward-sexp 1)
+ (parse-partial-sexp (point) last-sexp 0 t)))
+ (backward-prefix-chars))
+ (t
+ ;; Indent beneath first sexp on same line as last-sexp.
+ ;; Again, it's almost certainly a function call.
+ (goto-char last-sexp)
+ (beginning-of-line)
+ (parse-partial-sexp (point) last-sexp 0 t)
+ (backward-prefix-chars)))))
+ ;; Point is at the point to indent under unless we are inside a string.
+ ;; Call indentation hook except when overriden by lisp-indent-offset
+ ;; or if the desired indentation has already been computed.
+ (let ((normal-indent (current-column)))
+ (cond ((elt state 3)
+ ;; Inside a string, don't change indentation.
+ (goto-char indent-point)
+ (skip-chars-forward " \t")
+ (current-column))
+ ((and (integerp lisp-indent-offset) containing-sexp)
+ ;; Indent by constant offset
+ (goto-char containing-sexp)
+ (+ (current-column) lisp-indent-offset))
+ (desired-indent)
+ ((and (boundp 'lisp-indent-function)
+ lisp-indent-function
+ (not retry))
+ (or (funcall lisp-indent-function indent-point state)
+ normal-indent))
+ (t
+ normal-indent)))))))
+
+(defun lisp-indent-function (indent-point state)
+ (let ((normal-indent (current-column)))
+ (goto-char (1+ (elt state 1)))
+ (parse-partial-sexp (point) last-sexp 0 t)
+ (if (and (elt state 2)
+ (not (looking-at "\\sw\\|\\s_")))
+ ;; car of form doesn't seem to be a a symbol
+ (progn
+ (if (not (> (save-excursion (forward-line 1) (point))
+ last-sexp))
+ (progn (goto-char last-sexp)
+ (beginning-of-line)
+ (parse-partial-sexp (point) last-sexp 0 t)))
+ ;; Indent under the list or under the first sexp on the
+ ;; same line as last-sexp. Note that first thing on that
+ ;; line has to be complete sexp since we are inside the
+ ;; innermost containing sexp.
+ (backward-prefix-chars)
+ (current-column))
+ (let ((function (buffer-substring (point)
+ (progn (forward-sexp 1) (point))))
+ method)
+ (setq method (get (intern-soft function) 'lisp-indent-function))
+ (cond ((or (eq method 'defun)
+ (and (null method)
+ (> (length function) 3)
+ (string-match "\\`def" function)))
+ (lisp-indent-defform state indent-point))
+ ((integerp method)
+ (lisp-indent-specform method state
+ indent-point normal-indent))
+ (method
+ (funcall method state indent-point)))))))
+
+(defconst lisp-body-indent 2 "")
+
+(defun lisp-indent-specform (count state indent-point normal-indent)
+ (let ((containing-form-start (elt state 1))
+ (i count)
+ body-indent containing-form-column)
+ ;; Move to the start of containing form, calculate indentation
+ ;; to use for non-distinguished forms (> count), and move past the
+ ;; function symbol. lisp-indent-function guarantees that there is at
+ ;; least one word or symbol character following open paren of containing
+ ;; form.
+ (goto-char containing-form-start)
+ (setq containing-form-column (current-column))
+ (setq body-indent (+ lisp-body-indent containing-form-column))
+ (forward-char 1)
+ (forward-sexp 1)
+ ;; Now find the start of the last form.
+ (parse-partial-sexp (point) indent-point 1 t)
+ (while (and (< (point) indent-point)
+ (condition-case ()
+ (progn
+ (setq count (1- count))
+ (forward-sexp 1)
+ (parse-partial-sexp (point) indent-point 1 t))
+ (error nil))))
+ ;; Point is sitting on first character of last (or count) sexp.
+ (if (> count 0)
+ ;; A distinguished form. If it is the first or second form use double
+ ;; lisp-body-indent, else normal indent. With lisp-body-indent bound
+ ;; to 2 (the default), this just happens to work the same with if as
+ ;; the older code, but it makes unwind-protect, condition-case,
+ ;; with-output-to-temp-buffer, et. al. much more tasteful. The older,
+ ;; less hacked, behavior can be obtained by replacing below with
+ ;; (list normal-indent containing-form-start).
+ (if (<= (- i count) 1)
+ (list (+ containing-form-column (* 2 lisp-body-indent))
+ containing-form-start)
+ (list normal-indent containing-form-start))
+ ;; A non-distinguished form. Use body-indent if there are no
+ ;; distinguished forms and this is the first undistinguished form,
+ ;; or if this is the first undistinguished form and the preceding
+ ;; distinguished form has indentation at least as great as body-indent.
+ (if (or (and (= i 0) (= count 0))
+ (and (= count 0) (<= body-indent normal-indent)))
+ body-indent
+ normal-indent))))
+
+(defun lisp-indent-defform (state indent-point)
+ (goto-char (car (cdr state)))
+ (forward-line 1)
+ (if (> (point) (car (cdr (cdr state))))
+ (progn
+ (goto-char (car (cdr state)))
+ (+ lisp-body-indent (current-column)))))
+
+\f
+;; (put 'progn 'lisp-indent-function 0), say, causes progn to be indented
+;; like defun if the first form is placed on the next line, otherwise
+;; it is indented like any other form (i.e. forms line up under first).
+
+(put 'lambda 'lisp-indent-function 'defun)
+(put 'autoload 'lisp-indent-function 'defun)
+(put 'progn 'lisp-indent-function 0)
+(put 'prog1 'lisp-indent-function 1)
+(put 'prog2 'lisp-indent-function 2)
+(put 'save-excursion 'lisp-indent-function 0)
+(put 'save-window-excursion 'lisp-indent-function 0)
+(put 'save-restriction 'lisp-indent-function 0)
+(put 'let 'lisp-indent-function 1)
+(put 'let* 'lisp-indent-function 1)
+(put 'while 'lisp-indent-function 1)
+(put 'if 'lisp-indent-function 2)
+(put 'catch 'lisp-indent-function 1)
+(put 'condition-case 'lisp-indent-function 2)
+(put 'unwind-protect 'lisp-indent-function 1)
+(put 'with-output-to-temp-buffer 'lisp-indent-function 1)
+
+(defun indent-sexp (&optional endpos)
+ "Indent each line of the list starting just after point.
+If optional arg ENDPOS is given, indent each line, stopping when
+ENDPOS is encountered."
+ (interactive)
+ (let ((indent-stack (list nil)) (next-depth 0) last-depth bol
+ outer-loop-done inner-loop-done state this-indent
+ (last-point (point)))
+ ;; Get error now if we don't have a complete sexp after point.
+ (save-excursion (forward-sexp 1))
+ (save-excursion
+ (setq outer-loop-done nil)
+ (while (if endpos (< (point) endpos)
+ (not outer-loop-done))
+ (setq last-depth next-depth
+ inner-loop-done nil)
+ ;; Parse this line so we can learn the state
+ ;; to indent the next line.
+ ;; This inner loop goes through only once
+ ;; unless a line ends inside a string.
+ (while (and (not inner-loop-done)
+ (not (setq outer-loop-done (eobp))))
+ (setq state (parse-partial-sexp (point) (progn (end-of-line) (point))
+ nil nil state))
+ (setq next-depth (car state))
+ ;; If the line contains a comment other than the sort
+ ;; that is indented like code,
+ ;; indent it now with indent-for-comment.
+ ;; Comments indented like code are right already.
+ ;; In any case clear the in-comment flag in the state
+ ;; because parse-partial-sexp never sees the newlines.
+ (if (car (nthcdr 4 state))
+ (progn (indent-for-comment)
+ (end-of-line)
+ (setcar (nthcdr 4 state) nil)))
+ ;; If this line ends inside a string,
+ ;; go straight to next line, remaining within the inner loop,
+ ;; and turn off the \-flag.
+ (if (car (nthcdr 3 state))
+ (progn
+ (forward-line 1)
+ (setcar (nthcdr 5 state) nil))
+ (setq inner-loop-done t)))
+ (and endpos
+ (while (<= next-depth 0)
+ (setq indent-stack (append indent-stack (list nil)))
+ (setq next-depth (1+ next-depth))
+ (setq last-depth (1+ last-depth))))
+ (or outer-loop-done
+ (setq outer-loop-done (<= next-depth 0)))
+ (if outer-loop-done
+ nil
+ (while (> last-depth next-depth)
+ (setq indent-stack (cdr indent-stack)
+ last-depth (1- last-depth)))
+ (while (< last-depth next-depth)
+ (setq indent-stack (cons nil indent-stack)
+ last-depth (1+ last-depth)))
+ ;; Now go to the next line and indent it according
+ ;; to what we learned from parsing the previous one.
+ (forward-line 1)
+ (setq bol (point))
+ (skip-chars-forward " \t")
+ ;; But not if the line is blank, or just a comment
+ ;; (except for double-semi comments; indent them as usual).
+ (if (or (eobp) (looking-at "\\s<\\|\n"))
+ nil
+ (if (and (car indent-stack)
+ (>= (car indent-stack) 0))
+ (setq this-indent (car indent-stack))
+ (let ((val (calculate-lisp-indent
+ (if (car indent-stack) (- (car indent-stack))
+ last-point))))
+ (if (integerp val)
+ (setcar indent-stack
+ (setq this-indent val))
+ (setcar indent-stack (- (car (cdr val))))
+ (setq this-indent (car val)))))
+ (if (/= (current-column) this-indent)
+ (progn (delete-region bol (point))
+ (indent-to this-indent)))))
+ (or outer-loop-done
+ (setq outer-loop-done (= (point) last-point))
+ (setq last-point (point)))))))
+
+;; Indent every line whose first char is between START and END inclusive.
+(defun lisp-indent-region (start end)
+ (save-excursion
+ (goto-char start)
+ (and (bolp) (not (eolp))
+ (lisp-indent-line))
+ (let ((endmark (copy-marker end)))
+ (indent-sexp endmark)
+ (set-marker endmark nil))))
+\f
+(defun indent-code-rigidly (start end arg &optional nochange-regexp)
+ "Indent all lines of code, starting in the region, sideways by ARG columns.
+Does not affect lines starting inside comments or strings, assuming that
+the start of the region is not inside them.
+
+Called from a program, takes args START, END, COLUMNS and NOCHANGE-REGEXP.
+The last is a regexp which, if matched at the beginning of a line,
+means don't indent that line."
+ (interactive "r\np")
+ (let (state)
+ (save-excursion
+ (goto-char end)
+ (setq end (point-marker))
+ (goto-char start)
+ (or (bolp)
+ (setq state (parse-partial-sexp (point)
+ (progn
+ (forward-line 1) (point))
+ nil nil state)))
+ (while (< (point) end)
+ (or (car (nthcdr 3 state))
+ (and nochange-regexp
+ (looking-at nochange-regexp))
+ ;; If line does not start in string, indent it
+ (let ((indent (current-indentation)))
+ (delete-region (point) (progn (skip-chars-forward " \t") (point)))
+ (or (eolp)
+ (indent-to (max 0 (+ indent arg)) 0))))
+ (setq state (parse-partial-sexp (point)
+ (progn
+ (forward-line 1) (point))
+ nil nil state))))))
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