(defgroup m4 nil
"m4 code editing commands for Emacs."
:link '(custom-group-link :tag "Font Lock Faces group" font-lock-faces)
:prefix "m4-"
:group 'languages)
(defcustom m4-program
(cond
((file-exists-p "/usr/local/bin/m4") "/usr/local/bin/m4")
((file-exists-p "/usr/bin/m4") "/usr/bin/m4")
((file-exists-p "/bin/m4") "/bin/m4")
((file-exists-p "/usr/ccs/bin/m4") "/usr/ccs/bin/m4")
( t "m4")
)
"File name of the m4 executable."
:type 'file
:group 'm4)
(defcustom m4-program-options nil
"Options to pass to `m4-program'."
:type '(repeat string)
:group 'm4)
(defvar m4-font-lock-keywords
`(
("\\(\\b\\(m4_\\)?dnl\\b\\|^\\#\\).*$" . font-lock-comment-face)
("\\$[*#@0-9]" . font-lock-variable-name-face)
("\\\$\\\@" . font-lock-variable-name-face)
("\\\$\\\*" . font-lock-variable-name-face)
("\\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" . font-lock-keyword-face)
("\\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" . font-lock-keyword-face))
"Default font-lock-keywords for `m4 mode'.")
(defcustom m4-mode-hook nil
"*Hook called by `m4-mode'."
:type 'hook
:group 'm4)
(defvar m4-mode-syntax-table nil
"Syntax table used while in `m4-mode'.")
(setq m4-mode-syntax-table (make-syntax-table))
(modify-syntax-entry ?` "('" m4-mode-syntax-table)
(modify-syntax-entry ?' ")`" m4-mode-syntax-table)
(modify-syntax-entry ?# "<\n" m4-mode-syntax-table)
(modify-syntax-entry ?\n ">#" m4-mode-syntax-table)
(modify-syntax-entry ?{ "_" m4-mode-syntax-table)
(modify-syntax-entry ?} "_" m4-mode-syntax-table)
(modify-syntax-entry ?* "w" m4-mode-syntax-table)
(modify-syntax-entry ?_ "w" m4-mode-syntax-table)
(modify-syntax-entry ?\" "w" m4-mode-syntax-table)
(modify-syntax-entry ?\" "w" m4-mode-syntax-table)
(defvar m4-mode-map
(let ((map (make-sparse-keymap)))
(define-key map "\C-c\C-b" 'm4-m4-buffer)
(define-key map "\C-c\C-r" 'm4-m4-region)
(define-key map "\C-c\C-c" 'comment-region)
map))
(defvar m4-mode-abbrev-table nil
"Abbrev table used while in `m4-mode'.")
(unless m4-mode-abbrev-table
(define-abbrev-table 'm4-mode-abbrev-table ()))
(defun m4-m4-buffer ()
"Send contents of the current buffer to m4."
(interactive)
(shell-command-on-region
(point-min) (point-max)
(mapconcat 'identity (cons m4-program m4-program-options) "\s")
"*m4-output*" nil)
(switch-to-buffer-other-window "*m4-output*"))
(defun m4-m4-region ()
"Send contents of the current region to m4."
(interactive)
(shell-command-on-region
(point) (mark)
(mapconcat 'identity (cons m4-program m4-program-options) "\s")
"*m4-output*" nil)
(switch-to-buffer-other-window "*m4-output*"))
;;;###autoload
(defun m4-mode ()
"A major mode to edit m4 macro files.
\\{m4-mode-map}
"
(interactive)
(kill-all-local-variables)
(use-local-map m4-mode-map)
(make-local-variable 'comment-start)
(setq comment-start "#")
(make-local-variable 'parse-sexp-ignore-comments)
(setq parse-sexp-ignore-comments t)
(setq local-abbrev-table m4-mode-abbrev-table)
(make-local-variable 'font-lock-defaults)
(setq major-mode 'm4-mode
mode-name "m4"
font-lock-defaults '(m4-font-lock-keywords nil)
)
(set-syntax-table m4-mode-syntax-table)
(run-mode-hooks 'm4-mode-hook))
(provide 'm4-mode)
;;stuff to play with for debugging
;(char-to-string (char-syntax ?`))
;;;how I generate the nasty looking regexps at the top
;;;(make-regexp '("builtin" "changecom" "changequote" "changeword" "debugfile"
;;; "debugmode" "decr" "define" "defn" "divert" "divnum" "dnl"
;;; "dumpdef" "errprint" "esyscmd" "eval" "file" "format" "gnu"
;;; "ifdef" "ifelse" "include" "incr" "index" "indir" "len" "line"
;;; "m4exit" "m4wrap" "maketemp" "patsubst" "popdef" "pushdef" "regexp"
;;; "shift" "sinclude" "substr" "syscmd" "sysval" "traceoff" "traceon"
;;; "translit" "undefine" "undivert" "unix"))
;;;(make-regexp '("m4_builtin" "m4_changecom" "m4_changequote" "m4_changeword"
;;; "m4_debugfile" "m4_debugmode" "m4_decr" "m4_define" "m4_defn"
;;; "m4_divert" "m4_divnum" "m4_dnl" "m4_dumpdef" "m4_errprint"
;;; "m4_esyscmd" "m4_eval" "m4_file" "m4_format" "m4_ifdef" "m4_ifelse"
;;; "m4_include" "m4_incr" "m4_index" "m4_indir" "m4_len" "m4_line"
;;; "m4_m4exit" "m4_m4wrap" "m4_maketemp" "m4_patsubst" "m4_popdef"
;;; "m4_pushdef" "m4_regexp" "m4_shift" "m4_sinclude" "m4_substr"
;;; "m4_syscmd" "m4_sysval" "m4_traceoff" "m4_traceon" "m4_translit"
;;; "m4_m4_undefine" "m4_undivert"))
;;; arch-tag: 87811d86-94c1-474b-9666-587f6da74af1
;;; m4-mode.el ends here