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155 lines
4.8 KiB
EmacsLisp
155 lines
4.8 KiB
EmacsLisp
;;; ledit.el --- Emacs side of ledit interface
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;; Copyright (C) 1985 Free Software Foundation, Inc.
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;; Maintainer: FSF
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;; Keyord: 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 is a major mode for editing Liszt. See etc/LEDIT for details.
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;;; Code:
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;;; To do:
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;;; o lisp -> emacs side of things (grind-definition and find-definition)
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(defvar ledit-mode-map nil)
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(defconst ledit-zap-file (concat "/tmp/" (user-login-name) ".l1")
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"File name for data sent to Lisp by Ledit.")
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(defconst ledit-read-file (concat "/tmp/" (user-login-name) ".l2")
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"File name for data sent to Ledit by Lisp.")
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(defconst ledit-compile-file
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(concat "/tmp/" (user-login-name) ".l4")
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"File name for data sent to Lisp compiler by Ledit.")
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(defconst ledit-buffer "*LEDIT*"
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"Name of buffer in which Ledit accumulates data to send to Lisp.")
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;;;###autoload
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(defconst ledit-save-files t "\
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*Non-nil means Ledit should save files before transferring to Lisp.")
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;;;###autoload
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(defconst ledit-go-to-lisp-string "%?lisp" "\
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*Shell commands to execute to resume Lisp job.")
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;;;###autoload
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(defconst ledit-go-to-liszt-string "%?liszt" "\
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*Shell commands to execute to resume Lisp compiler job.")
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(defun ledit-save-defun ()
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"Save the current defun in the ledit buffer"
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(interactive)
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(save-excursion
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(end-of-defun)
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(let ((end (point)))
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(beginning-of-defun)
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(append-to-buffer ledit-buffer (point) end))
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(message "Current defun saved for Lisp")))
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(defun ledit-save-region (beg end)
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"Save the current region in the ledit buffer"
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(interactive "r")
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(append-to-buffer ledit-buffer beg end)
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(message "Region saved for Lisp"))
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(defun ledit-zap-defun-to-lisp ()
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"Carry the current defun to Lisp."
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(interactive)
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(ledit-save-defun)
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(ledit-go-to-lisp))
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(defun ledit-zap-defun-to-liszt ()
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"Carry the current defun to liszt."
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(interactive)
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(ledit-save-defun)
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(ledit-go-to-liszt))
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(defun ledit-zap-region-to-lisp (beg end)
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"Carry the current region to Lisp."
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(interactive "r")
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(ledit-save-region beg end)
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(ledit-go-to-lisp))
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(defun ledit-go-to-lisp ()
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"Suspend Emacs and restart a waiting Lisp job."
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(interactive)
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(if ledit-save-files
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(save-some-buffers))
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(if (get-buffer ledit-buffer)
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(save-excursion
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(set-buffer ledit-buffer)
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(goto-char (point-min))
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(write-region (point-min) (point-max) ledit-zap-file)
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(erase-buffer)))
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(suspend-emacs ledit-go-to-lisp-string)
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(load ledit-read-file t t))
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(defun ledit-go-to-liszt ()
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"Suspend Emacs and restart a waiting Liszt job."
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(interactive)
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(if ledit-save-files
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(save-some-buffers))
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(if (get-buffer ledit-buffer)
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(save-excursion
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(set-buffer ledit-buffer)
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(goto-char (point-min))
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(insert "(declare (macros t))\n")
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(write-region (point-min) (point-max) ledit-compile-file)
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(erase-buffer)))
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(suspend-emacs ledit-go-to-liszt-string)
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(load ledit-read-file t t))
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(defun ledit-setup ()
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"Set up key bindings for the Lisp/Emacs interface."
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(if (not ledit-mode-map)
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(progn (setq ledit-mode-map (nconc (make-sparse-keymap)
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shared-lisp-mode-map))))
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(define-key ledit-mode-map "\e\^d" 'ledit-save-defun)
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(define-key ledit-mode-map "\e\^r" 'ledit-save-region)
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(define-key ledit-mode-map "\^xz" 'ledit-go-to-lisp)
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(define-key ledit-mode-map "\e\^c" 'ledit-go-to-liszt))
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(ledit-setup)
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;;;###autoload
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(defun ledit-mode ()
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"\\<ledit-mode-map>Major mode for editing text and stuffing it to a Lisp job.
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Like Lisp mode, plus these special commands:
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\\[ledit-save-defun] -- record defun at or after point
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for later transmission to Lisp job.
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\\[ledit-save-region] -- record region for later transmission to Lisp job.
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\\[ledit-go-to-lisp] -- transfer to Lisp job and transmit saved text.
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\\[ledit-go-to-liszt] -- transfer to Liszt (Lisp compiler) job
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and transmit saved text.
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\\{ledit-mode-map}
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To make Lisp mode automatically change to Ledit mode,
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do (setq lisp-mode-hook 'ledit-from-lisp-mode)"
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(interactive)
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(lisp-mode)
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(ledit-from-lisp-mode))
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;;;###autoload
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(defun ledit-from-lisp-mode ()
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(use-local-map ledit-mode-map)
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(setq mode-name "Ledit")
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(setq major-mode 'ledit-mode)
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(run-hooks 'ledit-mode-hook))
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;;; ledit.el ends here
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