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;;; pd-mode.el --- major mode for editing Pd configuration files
;; Author: Hans-Christoph Steiner <hans@at.or.at>
;; Keywords: languages, faces
;; Last edit:
;; Version: 1.0.1
;; This file is an add-on for XEmacs or GNU Emacs (not tested with the latter).
;;
;; It 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 2, or (at your option)
;; any later version.x
;;
;; It is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with your copy of 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:
;;
;; There isn't really much to say. The list of keywords was derived from
;; the Pd there may be some errors or omissions.
;;
;; There are currently no local keybindings defined, but the hooks are
;; there in the event that anyone gets around to adding any.
;;
;; To enable automatic selection of this mode when appropriate files are
;; visited, add the following to your favourite site or personal Emacs
;; configuration file:
;;
;; (autoload 'pd-mode "pd-mode" "autoloaded" t)
;; (add-to-list 'auto-mode-alist '("\\.pat$" . pd-mode))
;; (add-to-list 'auto-mode-alist '("\\.pd$" . pd-mode))
;;
;;; Code:
;; Requires
(require 'regexp-opt)
;; Variables
(defvar pd-mode-map nil
"Keymap used for Pd file buffers")
(defvar pd-mode-syntax-table nil
"Pd file mode syntax table")
(defvar pd-mode-hook nil
"*List of hook functions run by `pd-mode' (see `run-hooks')")
;; Font lock
(defconst pd-font-lock-keywords
(purecopy
(list
(list (concat ; object types
"^#X \\("
(regexp-opt '("connect" "floatatom" "msg" "obj" "scalar" "struct"
"symbolatom" "text"))
"\\) ")
1 'font-lock-type-face)
(list (concat ; object types
"\\(^#[NX] "
(regexp-opt '("canvas" "restore"))
"\\) ")
1 'font-lock-warning-face)
; connect numbers
(list "^#X connect \\([0-9]+\\) [0-9]+ [0-9]+ [0-9]+"
1 'font-lock-variable-name-face)
(list "^#X connect [0-9]+ \\([0-9]+\\) [0-9]+ [0-9]+"
1 'font-lock-function-name-face)
(list "^#X connect [0-9]+ [0-9]+ \\([0-9]+\\) [0-9]+"
1 'font-lock-variable-name-face)
(list "^#X connect [0-9]+ [0-9]+ [0-9]+ \\([0-9]+\\)"
1 'font-lock-function-name-face)
; x y coords
(list "^#X [a-z]+ \\([0-9]+ [0-9]+\\) "
1 'font-lock-reference-face)
; terminating semi-colon
(list ";$" 0 'font-lock-warning-face t)
(list "\\(^#X\\)" 0 'font-lock-builtin-face t)
; (list "\\(^#N\\)" 0 'font-lock-constant-face t)
; (list "^#N.*$" 0 'font-lock-comment-face t)
(list "^#X obj [0-9]+ [0-9]+ \\([a-zA-Z0-9+*._-]+\\)[ ;]"
1 'font-lock-constant-face t)
(list "^#X msg [0-9]+ [0-9]+ \\([a-zA-Z0-9+*._-]+\\);"
1 'font-lock-variable-name-face)
; (list "^#X text [0-9]+ [0-9]+ \\(.*\\);"
; 1 'font-lock-comment-face)
))
"Expressions to highlight in Pd config buffers.")
(put 'pd-mode 'font-lock-defaults '(pd-font-lock-keywords nil t
((?_ . "w")
(?- . "w"))))
;; Syntax table
(if pd-mode-syntax-table
nil
(setq pd-mode-syntax-table (copy-syntax-table nil))
(modify-syntax-entry ?_ "_" pd-mode-syntax-table)
(modify-syntax-entry ?- "_" pd-mode-syntax-table)
(modify-syntax-entry ?\( "(\)" pd-mode-syntax-table)
(modify-syntax-entry ?\) ")\(" pd-mode-syntax-table)
(modify-syntax-entry ?\< "(\>" pd-mode-syntax-table)
(modify-syntax-entry ?\> ")\<" pd-mode-syntax-table)
(modify-syntax-entry ?\" "\"" pd-mode-syntax-table))
;;;###autoload
(defun pd-mode ()
"Major mode for editing Pd configuration files.
\\{pd-mode-map}
\\[pd-mode] runs the hook `pd-mode-hook'."
(interactive)
(kill-all-local-variables)
(use-local-map pd-mode-map)
(set-syntax-table pd-mode-syntax-table)
(make-local-variable 'comment-start)
(setq comment-start "#N ")
(make-local-variable 'comment-start-skip)
(setq comment-start-skip "#\\W*")
(make-local-variable 'comment-column)
(setq comment-column 48)
;;font-lock stuff (may not be initially necessary for XEmacs)
(font-lock-mode 1)
(setq font-lock-keywords pd-font-lock-keywords)
(font-lock-fontify-buffer)
(setq mode-name "Pd")
(setq major-mode 'pd-mode)
(run-hooks 'pd-mode-hook))
;; Provides
(provide 'pd-mode)
;;; pd-mode.el ends here
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