[Emacs-diffs] Changes to emacs/lisp/progmodes/autoconf.el [lexbind]

[Miles Bader]

Index: emacs/lisp/progmodes/autoconf.el
diff -c /dev/null emacs/lisp/progmodes/autoconf.el:1.3.4.1
*** /dev/null   Tue Oct 14 19:30:23 2003
--- emacs/lisp/progmodes/autoconf.el    Tue Oct 14 19:30:15 2003
***************
*** 0 ****
--- 1,112 ----
+ ;;; autoconf.el --- mode for editing Autoconf configure.in files
+ 
+ ;; Copyright (C) 2000 Free Software Foundation, Inc.
+ 
+ ;; Author: Dave Love <address@hidden>
+ ;; Keywords: languages
+ ;; $Revision: 1.3.4.1 $
+ 
+ ;; 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 2, 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, Inc., 59 Temple Place - Suite 330,
+ ;; Boston, MA 02111-1307, USA.
+ 
+ ;;; Commentary:
+ 
+ ;; Provides fairly minimal font-lock, imenu and indentation support
+ ;; for editing configure.in files.  Only Autoconf syntax is processed.
+ ;; There is no attempt to deal with shell text -- probably that will
+ ;; always lose.
+ 
+ ;; This is specialized for configure.in files.  It doesn't inherit the
+ ;; general M4 stuff from M4 mode.
+ 
+ ;; There is also an autoconf-mode.el in existence.  That appears to be
+ ;; for editing the Autoconf M4 source, rather than configure.in files.
+ 
+ ;;; Code:
+ 
+ (defvar autoconf-mode-map (make-sparse-keymap))
+ 
+ (defvar autoconf-mode-hook nil
+   "Hook run by `autoconf-mode'.")
+ 
+ (defconst autoconf-font-lock-syntactic-keywords
+   '(("\\<dnl\\>" 0 '(11))))
+ 
+ (defconst autoconf-definition-regexp
+   "AC_\\(SUBST\\|DEFINE\\(_UNQUOTED\\)?\\)(\\(\\sw+\\)")
+ 
+ (defvar autoconf-font-lock-keywords
+   `(("A[CM]_\\sw+" . font-lock-keyword-face)
+     (,autoconf-definition-regexp
+      3 font-lock-function-name-face)
+     ;; Are any other M4 keywords really appropriate for configure.in,
+     ;; given that we do `dnl'?
+     ("changequote" . font-lock-keyword-face)))
+ 
+ (defvar autoconf-mode-syntax-table
+   (let ((table (make-syntax-table)))
+     (modify-syntax-entry ?\" "." table)
+     (modify-syntax-entry ?\n ">" table)
+     (modify-syntax-entry ?# "<" table)
+     table))
+ 
+ (defvar autoconf-imenu-generic-expression
+   (list (list nil autoconf-definition-regexp 3)))
+ 
+ ;; It's not clear how best to implement this.
+ (defun autoconf-current-defun-function ()
+   "Function to use for `add-log-current-defun-function' in Autoconf mode.
+ This version looks back for an AC_DEFINE or AC_SUBST.  It will stop
+ searching backwards at another AC_... command."
+   (save-excursion
+     (with-syntax-table (copy-syntax-table autoconf-mode-syntax-table)
+       (modify-syntax-entry ?_ "w")
+       (if (re-search-backward autoconf-definition-regexp
+                             (save-excursion (beginning-of-defun) (point))
+                             t)
+         (match-string-no-properties 3)))))
+ 
+ ;;;###autoload
+ (defun autoconf-mode ()
+   "Major mode for editing Autoconf configure.in files."
+   (interactive)
+   (kill-all-local-variables)
+   (use-local-map autoconf-mode-map)
+   (setq major-mode 'autoconf-mode)
+   (setq mode-name "Autoconf")
+   (set-syntax-table autoconf-mode-syntax-table)
+   (set (make-local-variable 'parens-require-spaces) nil) ; for M4 arg lists
+   (set (make-local-variable 'defun-prompt-regexp)
+        "^[ \t]*A[CM]_\\(\\sw\\|\\s_\\)+")
+   (set (make-local-variable 'comment-start) "dnl ")
+   (set (make-local-variable 'comment-start-skip) "\\(?:\\<dnl\\|#\\) +")
+   (set (make-local-variable 'font-lock-syntactic-keywords)
+        autoconf-font-lock-syntactic-keywords)
+   (set (make-local-variable 'font-lock-defaults)
+        `(autoconf-font-lock-keywords nil nil (("_" . "w"))))
+   (set (make-local-variable 'imenu-generic-expression)
+        autoconf-imenu-generic-expression)
+   (set (make-local-variable 'imenu-syntax-alist) '(("_" . "w")))
+   (set (make-local-variable 'indent-line-function) #'indent-relative)
+   (set (make-local-variable 'add-log-current-defun-function)
+       #'autoconf-current-defun-function)
+   (run-hooks 'autoconf-mode-hook))
+ 
+ (provide 'autoconf-mode)
+ 
+ ;;; arch-tag: 4f44778f-2ab3-49a1-a103-f0acb9df2de4
+ ;;; autoconf.el ends here