-;; Major mode for editing Prolog, and for running Prolog under Emacs
+;;; prolog.el --- major mode for editing and running Prolog under Emacs
+
;; Copyright (C) 1986, 1987 Free Software Foundation, Inc.
-;; Author Masanobu UMEDA (umerin@flab.flab.fujitsu.junet)
+
+;; Author: Masanobu UMEDA <umerin@mse.kyutech.ac.jp>
+;; Keywords: languages
;; 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:
+
+;; This package provides a major mode for editing Prolog. It knows
+;; about Prolog syntax and comments, and can send regions to an inferior
+;; Prolog interpreter process. Font locking is tuned towards GNU Prolog.
+
+;;; Code:
(defvar prolog-mode-syntax-table nil)
(defvar prolog-mode-abbrev-table nil)
(defvar prolog-mode-map nil)
-
-(defvar prolog-program-name "prolog"
- "*Program name for invoking an inferior Prolog with `run-prolog'.")
-(defvar prolog-consult-string "reconsult(user).\n"
- "*(Re)Consult mode (for C-Prolog and Quintus Prolog). ")
+(defgroup prolog nil
+ "Major mode for editing and running Prolog under Emacs"
+ :group 'languages)
+
-(defvar prolog-compile-string "compile(user).\n"
- "*Compile mode (for Quintus Prolog).")
+(defcustom prolog-program-name "prolog"
+ "*Program name for invoking an inferior Prolog with `run-prolog'."
+ :type 'string
+ :group 'prolog)
-(defvar prolog-eof-string "end_of_file.\n"
+(defcustom prolog-consult-string "reconsult(user).\n"
+ "*(Re)Consult mode (for C-Prolog and Quintus Prolog). "
+ :type 'string
+ :group 'prolog)
+
+(defcustom prolog-compile-string "compile(user).\n"
+ "*Compile mode (for Quintus Prolog)."
+ :type 'string
+ :group 'prolog)
+
+(defcustom prolog-eof-string "end_of_file.\n"
"*String that represents end of file for prolog.
-nil means send actual operating system end of file.")
+nil means send actual operating system end of file."
+ :type 'string
+ :group 'prolog)
+
+(defcustom prolog-indent-width 4
+ "Level of indentation in Prolog buffers."
+ :type 'integer
+ :group 'prolog)
-(defvar prolog-indent-width 4)
+(defvar prolog-font-lock-keywords
+ '(("\\(#[<=]=>\\|:-\\)\\|\\(#=\\)\\|\\(#[#<>\\/][=\\/]*\\|!\\)"
+ 0 font-lock-keyword-face)
+ ("\\<\\(is\\|write\\|nl\\|read_\\sw+\\)\\>"
+ 1 font-lock-keyword-face)
+ ("^\\(\\sw+\\)\\s-*\\((\\(.+\\))\\)*"
+ (1 font-lock-function-name-face)
+ (3 font-lock-variable-name-face)))
+ "Font-lock keywords for Prolog mode.")
(if prolog-mode-syntax-table
()
(let ((table (make-syntax-table)))
(modify-syntax-entry ?_ "w" table)
(modify-syntax-entry ?\\ "\\" table)
- (modify-syntax-entry ?/ "." table)
- (modify-syntax-entry ?* "." table)
+ (modify-syntax-entry ?/ ". 14" table)
+ (modify-syntax-entry ?* ". 23" table)
(modify-syntax-entry ?+ "." table)
(modify-syntax-entry ?- "." table)
(modify-syntax-entry ?= "." table)
(modify-syntax-entry ?% "<" table)
+ (modify-syntax-entry ?\n ">" table)
(modify-syntax-entry ?< "." table)
(modify-syntax-entry ?> "." table)
(modify-syntax-entry ?\' "\"" table)
(set-syntax-table prolog-mode-syntax-table)
(setq local-abbrev-table prolog-mode-abbrev-table)
(make-local-variable 'paragraph-start)
- (setq paragraph-start (concat "^%%\\|^$\\|" page-delimiter)) ;'%%..'
+ (setq paragraph-start (concat "%%\\|$\\|" page-delimiter)) ;'%%..'
(make-local-variable 'paragraph-separate)
(setq paragraph-separate paragraph-start)
(make-local-variable 'paragraph-ignore-fill-prefix)
(setq paragraph-ignore-fill-prefix t)
+ (make-local-variable 'imenu-generic-expression)
+ (setq imenu-generic-expression "^[a-z][a-zA-Z0-9_]+")
(make-local-variable 'indent-line-function)
(setq indent-line-function 'prolog-indent-line)
(make-local-variable 'comment-start)
(setq comment-start-skip "%+ *")
(make-local-variable 'comment-column)
(setq comment-column 48)
- (make-local-variable 'comment-indent-hook)
- (setq comment-indent-hook 'prolog-comment-indent))
+ (make-local-variable 'comment-indent-function)
+ (setq comment-indent-function 'prolog-comment-indent))
(defun prolog-mode-commands (map)
(define-key map "\t" 'prolog-indent-line)
(setq prolog-mode-map (make-sparse-keymap))
(prolog-mode-commands prolog-mode-map))
+;;;###autoload
(defun prolog-mode ()
"Major mode for editing Prolog code for Prologs.
Blank lines and `%%...' separate paragraphs. `%'s start comments.
(setq major-mode 'prolog-mode)
(setq mode-name "Prolog")
(prolog-mode-variables)
+ ;; font lock
+ (setq font-lock-defaults '(prolog-font-lock-keywords
+ nil nil nil
+ beginning-of-line))
(run-hooks 'prolog-mode-hook))
(defun prolog-indent-line (&optional whole-exp)
(use-local-map inferior-prolog-mode-map)
(run-hooks 'prolog-mode-hook))
+;;;###autoload
(defun run-prolog ()
"Run an inferior Prolog process, input and output via buffer *prolog*."
(interactive)
(interactive "P\nr")
(prolog-consult-region compile beg end)
(switch-to-buffer "*prolog*"))
+
+(provide 'prolog)
+
+;;; arch-tag: f3ec6748-1272-4ab6-8826-c50cb1607636
+;;; prolog.el ends here
HCoop / bpt / emacs.git / blobdiff