;;; asm-mode.el --- mode for editing assembler code
+;; Copyright (C) 1991 Free Software Foundation, Inc.
+
;; Author: Eric S. Raymond <esr@snark.thyrsus.com>
-;; Last-Modified: 14 Jul 1992
+;; Maintainer: FSF
;; Keywords: tools, languages
-;; @(#)asm-mode.el 1.6
-
-;; Copyright (C) 1991 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)
+;; 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,
;; 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.
+;; 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:
;;
;; TAB tab to next tab stop
;; : outdent preceding label, tab to tab stop
-;; ; place or move comment
+;; comment char place or move comment
+;; asm-comment-char specifies which character this is;
+;; you can use a different character in different
+;; Asm mode buffers.
;; C-j, C-m newline and tab to tab stop
;;
;; Code is indented to the first tab stop level.
-;; The ; key inserts copies of the value of asm-comment-char at an
-;; appropriate spot.
;; This mode runs two hooks:
-;; 1) An asm-set-comment-hook before the part of the initialization
+;; 1) An asm-mode-set-comment-hook before the part of the initialization
;; depending on asm-comment-char, and
;; 2) an asm-mode-hook at the end of initialization.
;;; Code:
-(defvar asm-comment-char ?;
- "*The comment-start character assumed by asm-mode.")
+(defgroup asm nil
+ "Mode for editing assembler code."
+ :group 'languages)
+
+(defcustom asm-comment-char ?\;
+ "*The comment-start character assumed by Asm mode."
+ :type 'character
+ :group 'asm)
(defvar asm-mode-syntax-table nil
- "Syntax table used while in asm mode.")
+ "Syntax table used while in Asm mode.")
(defvar asm-mode-abbrev-table nil
- "Abbrev table used while in asm mode.")
+ "Abbrev table used while in Asm mode.")
(define-abbrev-table 'asm-mode-abbrev-table ())
(defvar asm-mode-map nil
- "Keymap for asm-mode")
+ "Keymap for Asm mode.")
(if asm-mode-map
nil
(setq asm-mode-map (make-sparse-keymap))
- (define-key asm-mode-map ";" 'asm-comment)
+ ;; Note that the comment character isn't set up until asm-mode is called.
(define-key asm-mode-map ":" 'asm-colon)
+ (define-key asm-mode-map "\C-c;" 'comment-region)
(define-key asm-mode-map "\C-i" 'tab-to-tab-stop)
(define-key asm-mode-map "\C-j" 'asm-newline)
(define-key asm-mode-map "\C-m" 'asm-newline)
)
+(defconst asm-font-lock-keywords
+ '(("^\\(\\(\\sw\\|\\s_\\)+\\)\\>:?[ \t]*\\(\\sw+\\)?"
+ (1 font-lock-function-name-face) (3 font-lock-keyword-face nil t))
+ ("^\\s +\\(\\(\\sw\\|\\s_\\)+\\)" 1 font-lock-keyword-face))
+ "Additional expressions to highlight in Assembler mode.")
+
(defvar asm-code-level-empty-comment-pattern nil)
(defvar asm-flush-left-empty-comment-pattern nil)
(defvar asm-inline-empty-comment-pattern nil)
;;;###autoload
(defun asm-mode ()
"Major mode for editing typical assembler code.
-Features a private asm-mode-abbrev-table and the following bindings:
+Features a private abbrev table and the following bindings:
\\[asm-colon]\toutdent a preceding label, tab to next tab stop.
\\[tab-to-tab-stop]\ttab to next tab stop.
\\[asm-comment]\tsmart placement of assembler comments.
The character used for making comments is set by the variable
-asm-comment-char (which defaults to ?;). You may want to set this
-appropriately for the assembler on your machine in defaults.el.
+`asm-comment-char' (which defaults to `?\\;').
-Alternatively, you may set this variable in asm-set-comment-hook, which is
-called near the beginning of mode initialization.
+Alternatively, you may set this variable in `asm-mode-set-comment-hook',
+which is called near the beginning of mode initialization.
-Turning on asm-mode calls the value of the variable asm-mode-hook,
-if that value is non-nil, at the end of initialization.
+Turning on Asm mode runs the hook `asm-mode-hook' at the end of initialization.
-Special commands:\\{asm-mode-map}
+Special commands:
+\\{asm-mode-map}
"
(interactive)
(kill-all-local-variables)
- (use-local-map asm-mode-map)
(setq mode-name "Assembler")
(setq major-mode 'asm-mode)
(setq local-abbrev-table asm-mode-abbrev-table)
+ (make-local-variable 'font-lock-defaults)
+ (setq font-lock-defaults '(asm-font-lock-keywords))
(make-local-variable 'asm-mode-syntax-table)
(setq asm-mode-syntax-table (make-syntax-table))
(set-syntax-table asm-mode-syntax-table)
+
(run-hooks 'asm-mode-set-comment-hook)
+ ;; Make our own local child of asm-mode-map
+ ;; so we can define our own comment character.
+ (use-local-map (nconc (make-sparse-keymap) asm-mode-map))
+ (local-set-key (vector asm-comment-char) 'asm-comment)
+
(modify-syntax-entry asm-comment-char
"<" asm-mode-syntax-table)
(modify-syntax-entry ?\n
(setq comment-end "")
(make-local-variable 'comment-column)
(setq comment-column 32)
- (auto-fill-mode 1)
(setq fill-prefix "\t")
- (run-hooks 'asm-mode-hook)
- )
-
+ (run-hooks 'asm-mode-hook))
\f
(defun asm-colon ()
"Insert a colon; if it follows a label, delete the label's indentation."
;; Nonblank line with no comment chars in it?
;; Then start a comment at the current comment column
- ((asm-line-matches (format "^[^%c]+$" asm-comment-char))
+ ((asm-line-matches (format "^[^%c\n]+$" asm-comment-char))
(indent-for-comment))
;; Flush-left comment present? Just insert character.
)
(end-of-line))
+(provide 'asm-mode)
+
;;; asm-mode.el ends here