site-lisp/autoconf-mode.el

   1 ;;; autoconf-mode.el --- autoconf code editing commands for Emacs
   2
   3 ;; Author: Martin Buchholz (martin@xemacs.org)
   4 ;; Maintainer: Martin Buchholz
   5 ;; Keywords: languages, faces, m4, configure
   6
   7 ;; This file is part of Autoconf
   8
   9 ;; Copyright (C) 2001, 2006, 2009 Free Software Foundation, Inc.
  10 ;;
  11 ;; This program is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15 ;;
  16 ;; This program is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20 ;;
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;; A major mode for editing autoconf input (like configure.in).
  25 ;; Derived from m4-mode.el by Andrew Csillag (drew@staff.prodigy.com)
  26
  27 ;;; Your should add the following to your Emacs configuration file:
  28
  29 ;;  (autoload 'autoconf-mode "autoconf-mode"
  30 ;;            "Major mode for editing autoconf files." t)
  31 ;;  (setq auto-mode-alist
  32 ;;        (cons '("\\.ac\\'\\|configure\\.in\\'" . autoconf-mode)
  33 ;;              auto-mode-alist))
  34
  35 ;;; Code:
  36
  37 ;;thank god for make-regexp.el!
  38 (defvar autoconf-font-lock-keywords
  39   `(("\\bdnl \\(.*\\)"  1 font-lock-comment-face t)
  40     ("\\$[0-9*#@]" . font-lock-variable-name-face)
  41     ("\\b\\(m4_\\)?\\(builtin\\|change\\(com\\|quote\\|word\\)\\|d\\(e\\(bug\\(file\\|mode\\)\\|cr\\|f\\(ine\\|n\\)\\)\\|iv\\(ert\\|num\\)\\|nl\\|umpdef\\)\\|e\\(rrprint\\|syscmd\\|val\\)\\|f\\(ile\\|ormat\\)\\|gnu\\|i\\(f\\(def\\|else\\)\\|n\\(c\\(lude\\|r\\)\\|d\\(ex\\|ir\\)\\)\\)\\|l\\(en\\|ine\\)\\|m\\(4\\(exit\\|wrap\\)\\|aketemp\\|kstemp\\)\\|p\\(atsubst\\|opdef\\|ushdef\\)\\|regexp\\|s\\(hift\\|include\\|ubstr\\|ys\\(cmd\\|val\\)\\)\\|tra\\(ceo\\(ff\\|n\\)\\|nslit\\)\\|un\\(d\\(efine\\|ivert\\)\\|ix\\)\\)\\b" . font-lock-keyword-face)
  42     ("^\\(\\(m4_\\)?define\\(_default\\)?\\|A._DEFUN\\|m4_defun\\(_once\\|_init\\)?\\)(\\[?\\([A-Za-z0-9_]+\\)" 5 font-lock-function-name-face)
  43     "default font-lock-keywords")
  44 )
  45
  46 (defvar autoconf-mode-syntax-table nil
  47   "syntax table used in autoconf mode")
  48 (setq autoconf-mode-syntax-table (make-syntax-table))
  49 (modify-syntax-entry ?\" "\""  autoconf-mode-syntax-table)
  50 ;;(modify-syntax-entry ?\' "\""  autoconf-mode-syntax-table)
  51 (modify-syntax-entry ?#  "<\n" autoconf-mode-syntax-table)
  52 (modify-syntax-entry ?\n ">#"  autoconf-mode-syntax-table)
  53 (modify-syntax-entry ?\( "()"   autoconf-mode-syntax-table)
  54 (modify-syntax-entry ?\) ")("   autoconf-mode-syntax-table)
  55 (modify-syntax-entry ?\[ "(]"  autoconf-mode-syntax-table)
  56 (modify-syntax-entry ?\] ")["  autoconf-mode-syntax-table)
  57 (modify-syntax-entry ?*  "."   autoconf-mode-syntax-table)
  58 (modify-syntax-entry ?_  "_"   autoconf-mode-syntax-table)
  59
  60 (defvar autoconf-mode-map
  61   (let ((map (make-sparse-keymap)))
  62     (define-key map '[(control c) (\;)] 'comment-region)
  63     map))
  64
  65 (defun autoconf-current-defun ()
  66   "Autoconf value for `add-log-current-defun-function'.
  67 This tells add-log.el how to find the current macro."
  68   (save-excursion
  69     (if (re-search-backward "^\\(m4_define\\(_default\\)?\\|m4_defun\\(_once\\|_init\\)?\\|A._DEFUN\\)(\\[*\\([A-Za-z0-9_]+\\)" nil t)
  70         (buffer-substring (match-beginning 4)
  71                           (match-end 4))
  72       nil)))
  73
  74 ;;;###autoload
  75 (defun autoconf-mode ()
  76   "A major-mode to edit Autoconf files like configure.ac.
  77 \\{autoconf-mode-map}
  78 "
  79   (interactive)
  80   (kill-all-local-variables)
  81   (use-local-map autoconf-mode-map)
  82
  83   (make-local-variable 'add-log-current-defun-function)
  84   (setq add-log-current-defun-function 'autoconf-current-defun)
  85
  86   (make-local-variable 'comment-start)
  87   (setq comment-start "# ")
  88   (make-local-variable 'parse-sexp-ignore-comments)
  89   (setq parse-sexp-ignore-comments t)
  90
  91   (make-local-variable  'font-lock-defaults)
  92   (setq major-mode 'autoconf-mode)
  93   (setq mode-name "Autoconf")
  94   (setq font-lock-defaults `(autoconf-font-lock-keywords nil))
  95   (set-syntax-table autoconf-mode-syntax-table)
  96   (run-hooks 'autoconf-mode-hook))
  97
  98 (provide 'autoconf-mode)
  99
 100 ;;; autoconf-mode.el ends here