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124 lines
3.9 KiB
EmacsLisp
124 lines
3.9 KiB
EmacsLisp
;;; medit.el --- front-end to the MEDIT package for editing MDL
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;; Copyright (C) 1985 Free Software Foundation, Inc.
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;; Author: K. Shane Hartman
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;; Maintainer: FSF
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;; Keywords: languages
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to
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;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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;;; Commentary:
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;; >> This package depends on two MDL packages: MEDIT and FORKS which
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;; >> can be obtained from the public (network) library at mit-ajax.
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;;; Code:
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(require 'mim-mode)
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(defconst medit-zap-file (concat "/tmp/" (user-login-name) ".medit.mud")
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"File name for data sent to MDL by Medit.")
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(defconst medit-buffer "*MEDIT*"
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"Name of buffer in which Medit accumulates data to send to MDL.")
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(defconst medit-save-files t
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"If non-nil, Medit offers to save files on return to MDL.")
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(defun medit-save-define ()
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"Mark the previous or surrounding toplevel object to be sent back to MDL."
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(interactive)
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(save-excursion
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(beginning-of-DEFINE)
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(let ((start (point)))
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(forward-mim-object 1)
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(append-to-buffer medit-buffer start (point))
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(goto-char start)
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(message "%s" (buffer-substring start (progn (end-of-line) (point)))))))
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(defun medit-save-region (start end)
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"Mark the current region to be sent to back to MDL."
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(interactive "r")
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(append-to-buffer medit-buffer start end)
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(message "Current region saved for MDL."))
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(defun medit-save-buffer ()
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"Mark the current buffer to be sent back to MDL."
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(interactive)
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(append-to-buffer medit-buffer (point-min) (point-max))
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(message "Current buffer saved for MDL."))
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(defun medit-zap-define-to-mdl ()
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"Return to MDL with surrounding or previous toplevel MDL object."
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(interactive)
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(medit-save-define)
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(medit-goto-mdl))
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(defun medit-zap-region-mdl (start end)
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"Return to MDL with current region."
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(interactive)
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(medit-save-region start end)
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(medit-goto-mdl))
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(defun medit-zap-buffer ()
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"Return to MDL with current buffer."
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(interactive)
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(medit-save-buffer)
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(medit-goto-mdl))
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(defun medit-goto-mdl ()
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"Return from Emacs to superior MDL, sending saved code.
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Optionally, offers to save changed files."
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(interactive)
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(let ((buffer (get-buffer medit-buffer)))
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(if buffer
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(save-excursion
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(set-buffer buffer)
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(if (buffer-modified-p buffer)
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(write-region (point-min) (point-max) medit-zap-file))
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(set-buffer-modified-p nil)
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(erase-buffer)))
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(if medit-save-files (save-some-buffers))
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;; Note could handle parallel fork by giving argument "%xmdl". Then
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;; mdl would have to invoke with "%emacs".
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(suspend-emacs)))
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(defconst medit-mode-map nil)
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(if (not medit-mode-map)
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(progn
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(setq medit-mode-map (copy-keymap mim-mode-map))
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(define-key medit-mode-map "\e\z" 'medit-save-define)
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(define-key medit-mode-map "\e\^z" 'medit-save-buffer)
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(define-key medit-mode-map "\^xz" 'medit-goto-mdl)
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(define-key medit-mode-map "\^xs" 'medit-zap-buffer)))
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(defconst medit-mode-hook (and (boundp 'mim-mode-hook) mim-mode-hook) "")
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(setq mim-mode-hook '(lambda () (medit-mode)))
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(defun medit-mode (&optional state)
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"Major mode for editing text and returning it to a superior MDL.
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Like Mim mode, plus these special commands:
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\\{medit-mode-map}"
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(interactive)
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(use-local-map medit-mode-map)
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(run-hooks 'medit-mode-hook)
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(setq major-mode 'medit-mode)
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(setq mode-name "Medit"))
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(mim-mode)
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;;; medit.el ends here
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