1 ;;; m4-mode.el --- m4 code editing commands for Emacs
3 ;; Author: Andrew Csillag (drew@staff.prodigy.com)
4 ;; Maintainer: Andrew Csillag (drew@staff.prodigy.com)
5 ;; Keywords: languages, faces
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
26 ;; A smart editing mode for m4 macro definitions. It seems to have most of the
27 ;; syntax right (sexp motion commands work, but function motion commands don't).
28 ;; It also sets the font-lock syntax stuff for colorization
30 ;; By Drew Csillag (drew@staff.prodigy.com)
31 ;; $Id: m4-mode.el,v 1.3 2003-06-07 12:14:44 adrian Exp $
35 ;; Date Version Who Action
36 ;; -------- ------- --- ----
37 ;; 09/13/96 1.0 DC Created
38 ;; 09/26/96 1.1 DC added syntax table stuff so now matches `'s
39 ;; now can use C-c C-b to m4 on buffer,C-c C-r for region
40 ;; added m4-comment-region (C-c C-c)
41 ;; 09/27/96 1.2 DC Redid header comment
42 ;; 1.3 DC more cosmetic fixes
43 ;; 1.4 DC removed m4-comment-region, using comment-region instead
44 ;; 10/03/96 DC added provide line
45 ;; 10/24/96 1.5 DC fixed keyword regexp
46 ;; 10/29/96 1.6 DC added m4_keywords for --prefix-builtins
47 ;; fixed syntax table so _define_ isn't keywordified
48 ;; 10/29/96 1.8 DC fixed a problem where comments go fontified incorrectly
49 ;; if they had quotes in them
50 ;; 11/21/96 1.9 DC collapsed 4 regexps into 1 and removed a duplicate,
51 ;; removed a duplicate backslash
52 ;; 05/16/97 1.10 DC added contributed fixes and enhancements from
54 ;; Can now specify options to m4 via m4-program-options
55 ;; Now terminates m4 processes when the buffer send
58 ;; dnl and m4_dnl recognized as comment starters
62 ;; * want to make m4-m4-(buffer|region) look sorta like M-x compile look&feel ?
63 ;; * sexp motion commands don't seem to work right
65 ;; to autoload m4 lisp code:
66 ;; (autoload 'm4-mode "m4-mode" nil t)
68 ;; or can use (load "m4-mode") or (require 'm4-mode) to just load it
70 ;; to try to "auto-detect" m4 files:
71 ;; (setq auto-mode-alist
72 ;; (cons '(".*\\.m4$" . m4-mode)
76 ;;; to Akim Demaille and Terry Jones for the bug reports
77 ;;; to Simon Marshall for the regexp tip
78 ;;; to Martin Buchholz for some general fixes
82 ;;path to the m4 program
85 ((file-exists-p "/usr/local/bin/m4") "/usr/local/bin/m4")
86 ((file-exists-p "/usr/bin/m4") "/usr/bin/m4")
87 ((file-exists-p "/bin/m4") "/bin/m4")
88 ((file-exists-p "/usr/ccs/bin/m4") "/usr/ccs/bin/m4")
93 (defconst m4-program-options nil)
94 ;;to use --prefix-builtins, you can use
95 ;;(defconst m4-program-options '("-P"))
97 ;;(defconst m4-program-options '("--prefix-builtins"))
99 ;;thank god for make-regexp.el!
100 (defvar m4-font-lock-keywords
102 ("\\(\\bdnl\\b\\|\\bm4_dnl\\b\\|^\\#\\).*$" .
103 font-lock-comment-face)
104 ("\\$[*#@0-9]" . font-lock-variable-name-face)
106 ("\\b\\(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\\)\\|p\\(atsubst\\|opdef\\|ushdef\\)\\|regexp\\|s\\(hift\\|include\\|ubstr\\|ys\\(cmd\\|val\\)\\)\\|tra\\(ceo\\(ff\\|n\\)\\|nslit\\)\\|un\\(d\\(efine\\|ivert\\)\\|ix\\)\\)\\b"
107 . font-lock-keyword-face)
109 ("\\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\\)\\|i\\(f\\(def\\|else\\)\\|n\\(c\\(lude\\|r\\)\\|d\\(ex\\|ir\\)\\)\\)\\|l\\(en\\|ine\\)\\|m\\(4\\(_undefine\\|exit\\|wrap\\)\\|aketemp\\)\\|p\\(atsubst\\|opdef\\|ushdef\\)\\|regexp\\|s\\(hift\\|include\\|ubstr\\|ys\\(cmd\\|val\\)\\)\\|tra\\(ceo\\(ff\\|n\\)\\|nslit\\)\\|undivert\\)\\)\\b"
110 . font-lock-keyword-face)
111 "default font-lock-keywords")
114 ;;this may still need some work
115 (defvar m4-mode-syntax-table nil
116 "syntax table used in m4 mode")
117 (setq m4-mode-syntax-table (make-syntax-table))
118 (modify-syntax-entry ?` "('" m4-mode-syntax-table)
119 (modify-syntax-entry ?' ")`" m4-mode-syntax-table)
120 (modify-syntax-entry ?# "<\n" m4-mode-syntax-table)
121 (modify-syntax-entry ?\n ">#" m4-mode-syntax-table)
122 (modify-syntax-entry ?{ "_" m4-mode-syntax-table)
123 (modify-syntax-entry ?} "_" m4-mode-syntax-table)
124 (modify-syntax-entry ?* "." m4-mode-syntax-table)
125 (modify-syntax-entry ?_ "_" m4-mode-syntax-table)
126 (modify-syntax-entry ?\" "w" m4-mode-syntax-table)
129 (let ((map (make-sparse-keymap)))
130 (define-key map "\C-c\C-b" 'm4-m4-buffer)
131 (define-key map "\C-c\C-r" 'm4-m4-region)
132 (define-key map "\C-c\C-c" 'comment-region)
135 (defun m4-end-m4 (process event)
136 (cond ((equal event "kill\n") (princ "m4 process done"))
138 (format "Process: %s had the event `%s'" process event)))))
140 (defun m4-start-m4 ()
141 (eval (append (append '(start-process "m4process" "*m4 output*"
143 m4-program-options) '("-e")))
144 (set-process-sentinel (get-process "m4process") 'm4-end-m4)
147 (defun m4-m4-buffer ()
148 "send contents of the current buffer to m4"
151 (process-send-region "m4process" (point-min) (point-max))
152 (process-send-eof "m4process")
153 (switch-to-buffer-other-window "*m4 output*")
154 (delete-process "m4process")
158 (defun m4-m4-region ()
159 "send contents of the current region to m4"
162 (process-send-region "m4process" (point) (mark))
163 (process-send-eof "m4process")
164 (switch-to-buffer-other-window "*m4 output*")
169 "A major-mode to edit m4 macro files
173 (kill-all-local-variables)
174 (use-local-map m4-mode-map)
176 (make-local-variable 'comment-start)
177 (setq comment-start "#")
178 (make-local-variable 'parse-sexp-ignore-comments)
179 (setq parse-sexp-ignore-comments t)
182 (make-local-variable 'font-lock-defaults)
183 (setq major-mode 'm4-mode
185 font-lock-defaults '(m4-font-lock-keywords nil)
187 (set-syntax-table m4-mode-syntax-table)
188 (run-hooks 'm4-mode-hook))
191 ;; APA: autoconf-mode is XEmacs' preferred m4 mode, see its autoload
193 ;; ;;;###autoload(add-to-list 'auto-mode-alist '(".*\\.m4$" . m4-mode))
196 ;;stuff to play with for debugging
197 ;(char-to-string (char-syntax ?`))
199 ;;;how I generate the nasty looking regexps at the top
200 ;;;(make-regexp '("builtin" "changecom" "changequote" "changeword" "debugfile"
201 ;;; "debugmode" "decr" "define" "defn" "divert" "divnum" "dnl"
202 ;;; "dumpdef" "errprint" "esyscmd" "eval" "file" "format" "gnu"
203 ;;; "ifdef" "ifelse" "include" "incr" "index" "indir" "len" "line"
204 ;;; "m4exit" "m4wrap" "maketemp" "patsubst" "popdef" "pushdef" "regexp"
205 ;;; "shift" "sinclude" "substr" "syscmd" "sysval" "traceoff" "traceon"
206 ;;; "translit" "undefine" "undivert" "unix"))
207 ;;;(make-regexp '("m4_builtin" "m4_changecom" "m4_changequote" "m4_changeword"
208 ;;; "m4_debugfile" "m4_debugmode" "m4_decr" "m4_define" "m4_defn"
209 ;;; "m4_divert" "m4_divnum" "m4_dnl" "m4_dumpdef" "m4_errprint"
210 ;;; "m4_esyscmd" "m4_eval" "m4_file" "m4_format" "m4_ifdef" "m4_ifelse"
211 ;;; "m4_include" "m4_incr" "m4_index" "m4_indir" "m4_len" "m4_line"
212 ;;; "m4_m4exit" "m4_m4wrap" "m4_maketemp" "m4_patsubst" "m4_popdef"
213 ;;; "m4_pushdef" "m4_regexp" "m4_shift" "m4_sinclude" "m4_substr"
214 ;;; "m4_syscmd" "m4_sysval" "m4_traceoff" "m4_traceon" "m4_translit"
215 ;;; "m4_m4_undefine" "m4_undivert"))